Product Description
Product Name
Cycloid gear hydraulic motor BM4 BMH OMH Orbital Motor for Marine Winch
Introduction of hydraulic motor
The hydraulic motor is an executive component of the hydraulic system, which converts the liquid pressure energy provided by thehydraulic pump into the mechanical energy (torque and speed) of its output shaft. Liquid is the medium of transmitting force andmotion.
Radial piston hydraulic motor
The working principle of the radial piston type hydraulic motor is that when the pressure oil enters the bottom of the piston in the cylinder body through the window of the fixed oil distribution shaft 4, the piston extends outwards and firmly presses against the inner wall of the stator, because there is an eccentric distance between the stator and the cylinder block.
At the contact point between the plunger and the stator, the reaction force between the stator and the plunger is. The force can be decomposed into 2 components.
When the oil pressure acting on the bottom of the plunger is p, the diameter of the plunger is D, and the angle between the force and is x, the force produces a torque on the cylinder block and makes the cylinder block rotate. The cylinder block then outputs the torque and speed through the transmission shaft connected with the end face.
technical parameter
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technical parameter
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Displacement(ml/r)
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245
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310
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390
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490
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625
|
800
|
|
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Flow(LPM)
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Continuous
|
80
|
80
|
80
|
80
|
80
|
80
|
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Intermittent
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100
|
100
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100
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100
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100
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100
|
|
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Speed(RPM)
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Continuous
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320
|
250
|
200
|
200
|
160
|
120
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Intermittent
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350
|
280
|
230
|
200
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160
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120
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|
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Pressure(Mps)
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Continuous
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14
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14
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14
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14
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12.5
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10
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Intermittent
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15
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15
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15
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15
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13
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12
|
|
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Torque(N*m)
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Continuous
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400
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500
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550
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680
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780
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800
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Intermittent
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420
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520
|
580
|
700
|
800
|
820
|
|
Applicable models
The OMH/BMH/BM4 series orbital hydraulic motors are widely applied in agriculture machinery, fishing machinery, plastic industry, mining, and construction machinery.
*Agricultural machinery: all combine harvesters, seeders, rotary tiller,lawn mowers, sprayer, feed mixers, ground drilling machine.
*Construction machinery: road rollers, truck cranes, cement mixers.
*Common machinery: winch units, drilling dig machines,winding machines, textile machines, printing presses, operating with a washing machine,road sweeper,scrubbers,snow sweepers.
Company profile
1.One set/Plastic box/Cardboard CTN
2.Safety for long-distance transportation
3.All of the productions will be checked carefully before delivery
Pre-sales Service
1. Inquiry and consulting support
2. Sample testing support
3. Recommend the most suitable machine according to customer’s purpose
4. Factory visiting welcomed
After-sales Service
1. Training how to install the machine
2. Training how to use the machine
3. Warranty 1 year
4. Engineers available to service machinery oversea
FAQ
Q1.Are you a factory or a trading company?What can you provide?
We are a factory locates in industrial belt of HangZhou City,our main products are hydraulic orbit motors,hydraulic winches,hydraulic
steel hole punchers,mini excavators,etc.
Q2.I want to buy your product,how can I pay?
We support T/T,Paypal,Western Union,also you can pay by credit card.
Q3.How about the warranty?
We promise to supply high quality products and professional after-sales service.We can supply technical support as long as youneed,beyond that,we also offer 6 months of warranty.
Q4.If we don’t find what we want on your website,what should we do?
You can start a conversation to us,or send us email about the descriptions and pictures of the products you need,we will check ifwe can supply and reply your inquiry ASAP.
Q5.Could we buy 1pcs of the item for quality testing?
Yes of course,we understand quality test is important and we are glad to send 1 set for quality testing.
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| Certification: | ISO9001 |
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| Excitation Mode: | Excited |
| Power Rating: | 1500W |
| Samples: |
US$ 140/Piece
1 Piece(Min.Order) | Order Sample |
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| Customization: |
Available
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.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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How is the efficiency of a gear motor measured, and what factors can affect it?
The efficiency of a gear motor is a measure of how effectively it converts electrical input power into mechanical output power. It indicates the motor’s ability to minimize losses and maximize its energy conversion efficiency. The efficiency of a gear motor is typically measured using specific methods, and several factors can influence it. Here’s a detailed explanation:
Measuring Efficiency:
The efficiency of a gear motor is commonly measured by comparing the mechanical output power (Pout) to the electrical input power (Pin). The formula to calculate efficiency is:
Efficiency = (Pout / Pin) * 100%
The mechanical output power can be determined by measuring the torque (T) produced by the motor and the rotational speed (ω) at which it operates. The formula for mechanical power is:
Pout = T * ω
The electrical input power can be measured by monitoring the current (I) and voltage (V) supplied to the motor. The formula for electrical power is:
Pin = V * I
By substituting these values into the efficiency formula, the efficiency of the gear motor can be calculated as a percentage.
Factors Affecting Efficiency:
Several factors can influence the efficiency of a gear motor. Here are some notable factors:
- Friction and Mechanical Losses: Friction between moving parts, such as gears and bearings, can result in mechanical losses and reduce the overall efficiency of the gear motor. Minimizing friction through proper lubrication, high-quality components, and efficient design can help improve efficiency.
- Gearing Efficiency: The design and quality of the gears used in the gear motor can impact its efficiency. Gear trains can introduce mechanical losses due to gear meshing, misalignment, or backlash. Using well-designed gears with proper tooth profiles and minimizing gear train losses can improve efficiency.
- Motor Type and Construction: Different types of motors (e.g., brushed DC, brushless DC, AC induction) have varying efficiency characteristics. Motor construction, such as the quality of magnetic materials, winding resistance, and rotor design, can also affect efficiency. Choosing motors with higher efficiency ratings can improve overall gear motor efficiency.
- Electrical Losses: Electrical losses, such as resistive losses in motor windings or in the motor drive circuitry, can reduce efficiency. Minimizing resistance, optimizing motor drive electronics, and using efficient control algorithms can help mitigate electrical losses.
- Load Conditions: The operating conditions and load characteristics placed on the gear motor can impact its efficiency. Heavy loads, high speeds, or frequent acceleration and deceleration can increase losses and reduce efficiency. Matching the gear motor’s specifications to the application requirements and optimizing load conditions can improve efficiency.
- Temperature: Elevated temperatures can significantly affect the efficiency of a gear motor. Excessive heat can increase resistive losses, reduce lubrication effectiveness, and affect the magnetic properties of motor components. Proper cooling and thermal management techniques are essential to maintain optimal efficiency.
By considering these factors and implementing measures to minimize losses and optimize performance, the efficiency of a gear motor can be enhanced. Manufacturers often provide efficiency specifications for gear motors, allowing users to select motors that best meet their efficiency requirements for specific applications.
How do gear motors compare to other types of motors in terms of power and efficiency?
Gear motors can be compared to other types of motors in terms of power output and efficiency. The choice of motor type depends on the specific application requirements, including the desired power level, efficiency, speed range, torque characteristics, and control capabilities. Here’s a detailed explanation of how gear motors compare to other types of motors in terms of power and efficiency:
1. Gear Motors:
Gear motors combine a motor with a gear mechanism to deliver increased torque output and improved control. The gear reduction enables gear motors to provide higher torque while reducing the output speed. This makes gear motors suitable for applications that require high torque, precise positioning, and controlled movements. However, the gear reduction process introduces mechanical losses, which can slightly reduce the overall efficiency of the system compared to direct-drive motors. The efficiency of gear motors can vary depending on factors such as gear quality, lubrication, and maintenance.
2. Direct-Drive Motors:
Direct-drive motors, also known as gearless or integrated motors, do not use a gear mechanism. They provide a direct connection between the motor and the load, eliminating the need for gear reduction. Direct-drive motors offer advantages such as high efficiency, low maintenance, and compact design. Since there are no gears involved, direct-drive motors experience fewer mechanical losses and can achieve higher overall efficiency compared to gear motors. However, direct-drive motors may have limitations in terms of torque output and speed range, and they may require more complex control systems to achieve precise positioning.
3. Stepper Motors:
Stepper motors are a type of gear motor that excels in precise positioning applications. They operate by converting electrical pulses into incremental steps of movement. Stepper motors offer excellent positional accuracy and control. They are capable of precise positioning and can hold a position without power. Stepper motors have relatively high torque at low speeds, making them suitable for applications that require precise control and positioning, such as robotics, 3D printers, and CNC machines. However, stepper motors may have lower overall efficiency compared to direct-drive motors due to the additional power required to overcome the detents between steps.
4. Servo Motors:
Servo motors are another type of gear motor known for their high torque, high speed, and excellent positional accuracy. Servo motors combine a motor, a feedback device (such as an encoder), and a closed-loop control system. They offer precise control over position, speed, and torque. Servo motors are widely used in applications that require accurate and responsive positioning, such as industrial automation, robotics, and camera pan-tilt systems. Servo motors can achieve high efficiency when properly optimized and controlled but may have slightly lower efficiency compared to direct-drive motors due to the additional complexity of the control system.
5. Efficiency Considerations:
When comparing power and efficiency among different motor types, it’s important to consider the specific requirements and operating conditions of the application. Factors such as load characteristics, speed range, duty cycle, and control requirements influence the overall efficiency of the motor system. While direct-drive motors generally offer higher efficiency due to the absence of mechanical losses from gears, gear motors can deliver higher torque output and enhanced control capabilities. The efficiency of gear motors can be optimized through proper gear selection, lubrication, and maintenance practices.
In summary, gear motors offer increased torque and improved control compared to direct-drive motors. However, gear reduction introduces mechanical losses that can slightly impact the overall efficiency of the system. Direct-drive motors, on the other hand, provide high efficiency and compact design but may have limitations in terms of torque and speed range. Stepper motors and servo motors, both types of gear motors, excel in precise positioning applications but may have slightly lower efficiency compared to direct-drive motors. The selection of the most suitable motor type depends on the specific requirements of the application, balancing power, efficiency, speed range, and control capabilities.
How does the gearing mechanism in a gear motor contribute to torque and speed control?
The gearing mechanism in a gear motor plays a crucial role in controlling torque and speed. By utilizing different gear ratios and configurations, the gearing mechanism allows for precise manipulation of these parameters. Here’s a detailed explanation of how the gearing mechanism contributes to torque and speed control in a gear motor:
The gearing mechanism consists of multiple gears with varying sizes, tooth configurations, and arrangements. Each gear in the system engages with another gear, creating a mechanical connection. When the motor rotates, it drives the rotation of the first gear, which then transfers the motion to subsequent gears, ultimately resulting in the output shaft’s rotation.
Torque Control:
The gearing mechanism in a gear motor enables torque control through the principle of mechanical advantage. The gear system utilizes gears with different numbers of teeth, known as gear ratio, to adjust the torque output. When a smaller gear (pinion) engages with a larger gear (gear), the pinion rotates faster than the gear but exerts more force or torque. This results in torque amplification, allowing the gear motor to deliver higher torque at the output shaft while reducing the rotational speed. Conversely, if a larger gear engages with a smaller gear, torque reduction occurs, resulting in higher rotational speed at the output shaft.
By selecting the appropriate gear ratio, the gearing mechanism effectively adjusts the torque output of the gear motor to match the requirements of the application. This torque control capability is essential in applications that demand high torque for heavy lifting or overcoming resistance, as well as applications that require lower torque but higher rotational speed.
Speed Control:
The gearing mechanism also contributes to speed control in a gear motor. The gear ratio determines the relationship between the rotational speed of the input shaft (driven by the motor) and the output shaft. When a gear motor has a higher gear ratio (more teeth on the driven gear compared to the driving gear), it reduces the output speed while increasing the torque. Conversely, a lower gear ratio increases the output speed while reducing the torque.
By choosing the appropriate gear ratio, the gearing mechanism allows for precise speed control in a gear motor. This is particularly useful in applications that require specific speed ranges or variations, such as conveyor systems, robotic movements, or machinery that needs to operate at different speeds for different tasks. The speed control capability of the gearing mechanism enables the gear motor to match the desired speed requirements of the application accurately.
In summary, the gearing mechanism in a gear motor contributes to torque and speed control by utilizing different gear ratios and configurations. It enables torque amplification or reduction, depending on the gear arrangement, allowing the gear motor to deliver the required torque output. Additionally, the gear ratio also determines the relationship between the rotational speed of the input and output shafts, providing precise speed control. These torque and speed control capabilities make gear motors versatile and suitable for a wide range of applications in various industries.
editor by CX 2024-03-30
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