Novel double-support hydraulic motor

Abstract

The utility model relates to the technical field of hydraulic motors, in particular to a novel double-support hydraulic motor which comprises a double-support hydraulic motor body, an oil inlet cavity of the double-support hydraulic motor body is fixedly connected with an oil inlet pipe, and an oil outlet cavity of the double-support hydraulic motor body is fixedly connected with an oil outlet pipe. The tail end of the oil inlet pipe is fixedly connected with a hydraulic power unit; the side opening of the tee joint is provided with a cooling assembly, the top opening of the tee joint is fixedly connected with a flow dividing pipe, the outer wall of the cooling assembly is in through connection with a cooling oil conveying pipe, and the flow dividing pipe and the cooling oil conveying pipe are in through connection with the hydraulic power unit. Through the arrangement of the tee joint, the shunt pipe and the cooling assembly and the arrangement of a hydraulic oil cooling path outside the hydraulic motor, the design ensures that oil can be cooled in a system more smoothly, the problem of heat accumulation caused by insufficient lubrication of a bearing under a high-temperature working condition is effectively avoided, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic motor technology, and in particular to a novel double-support hydraulic motor. Background Technology

[0002] Currently, a hydraulic motor is an actuator in a hydraulic system. It converts the liquid pressure energy provided by a hydraulic pump into the mechanical energy (torque and speed) of its output shaft. Hydraulic motors are also known as oil motors and are mainly used in injection molding machinery, ships, hoists, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, marine machinery, petrochemicals, port machinery, etc.

[0003] Existing dual-support hydraulic motors, such as the one disclosed in CN214063202U, employ a combination of a sealing component and a pressing device. The pressing device can push the sealing component to slide, making it difficult for oil to enter the sealing groove and thus preventing contamination of the sealing groove. However, the dual-bearing layout of the dual-support hydraulic motor may hinder the flow of internal oil, leading to insufficient bearing lubrication under high-temperature conditions, heat accumulation, accelerated seal aging, and affecting the service life of the dual-support hydraulic motor. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing dual-bearing hydraulic motors, which may hinder the flow of internal oil, leading to insufficient bearing lubrication under high-temperature conditions, heat accumulation, accelerated seal aging, and reduced service life of the dual-bearing hydraulic motor. Therefore, a novel dual-bearing hydraulic motor is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel dual-support hydraulic motor includes a dual-support hydraulic motor body, wherein the oil inlet chamber of the dual-support hydraulic motor body is fixedly connected to the beginning end of an oil inlet pipe via a flange, the oil outlet chamber of the dual-support hydraulic motor body is fixedly connected to an oil outlet pipe via a flange, and the end end of the oil inlet pipe is fixedly connected to a hydraulic power unit.

[0007] The oil outlet pipe is fixedly connected to a tee at one end away from the dual-support hydraulic motor body. A cooling component is provided at the side opening of the tee, and a diverter pipe is fixedly connected at the top opening of the tee. A cooling oil supply pipe is connected through the outer wall of the cooling component. Both the diverter pipe and the cooling oil supply pipe are connected through the hydraulic power unit.

[0008] Preferably, the cooling assembly includes a cooling housing, the inner wall of which is fixedly connected with staggered partitions, the top opening of the cooling housing is fixedly connected with a sealing cover by bolts, and the top of the sealing cover is fixedly connected with a cooling fan.

[0009] Preferably, the inlet of the cooling assembly is provided with a filter, the top opening of the filter is fixedly connected to an end cap by bolts, and the inner walls of the filter are fixedly connected to both sides with isosceles trapezoidal guide blocks. The outer walls of the guide blocks are provided with mounting grooves, and a filter screen is slidably connected in the mounting grooves.

[0010] Preferably, a sealing gasket is fixedly connected to the bottom of the end cap to prevent hydraulic oil leakage during filtration, and the sealing gasket abuts against the top of the filter screen and the guide block.

[0011] Preferably, a bypass valve is provided inside the tee, which can automatically switch the diversion pipe when the cooling component is blocked to avoid system pressure buildup.

[0012] Preferably, a temperature sensor that monitors the oil temperature and is linked to the cooling assembly is connected through the oil outlet pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When in use, this utility model can be configured with a three-way valve, a distributor pipe and a cooling component to set a hydraulic oil cooling path outside the hydraulic motor. Compared with the traditional double bearing layout that hinders oil flow, this design ensures that the oil can cool down more smoothly in the system, effectively avoiding the problem of heat accumulation in the bearing due to insufficient lubrication under high temperature conditions, and extending the service life of the bearing.

[0015] 2. When in use, this utility model increases the contact area between the hydraulic oil and the cooling shell through the staggered baffles in the cooling assembly. Combined with the forced heat dissipation of the cooling fan, it greatly improves the heat dissipation efficiency, prevents the seal from aging due to heat accumulation, and ensures the stable operation of the dual-support hydraulic motor under complex working conditions.

[0016] 3. When in use, this utility model can effectively intercept impurities in hydraulic oil through the filter at the inlet of the cooling component and the design of the removable filter screen, maintain system cleanliness, and reduce the wear of impurities on the internal parts of the hydraulic motor.

[0017] 4. When in use, this utility model can provide system safety by setting a bypass valve. When the cooling component is blocked, the diverter pipe is automatically switched to avoid system pressure buildup and failure, thereby improving system safety. In addition, the temperature sensor monitors the oil temperature in real time and is linked with the cooling component to realize intelligent control of the oil temperature, ensuring that the hydraulic oil is always at a suitable working temperature, and further improving the reliability and service life of the dual-support hydraulic motor. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a novel dual-support hydraulic motor proposed in this utility model.

[0019] Figure 2 A three-dimensional structural diagram of the internal cooling housing of a novel dual-support hydraulic motor proposed in this utility model.

[0020] Figure 3 A three-dimensional structural diagram of a filter for a novel dual-support hydraulic motor proposed in this utility model;

[0021] Figure 4 A schematic diagram of the internal three-dimensional structure of a filter with a novel dual-support hydraulic motor proposed in this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the bottom end cap of a novel dual-support hydraulic motor proposed in this utility model.

[0023] In the diagram: 1. Dual-support hydraulic motor body; 2. Oil inlet pipe; 3. Oil outlet pipe; 4. Hydraulic power unit; 5. T-junction;

[0024] 6. Cooling components; 61. Baffle; 62. Sealing cover; 63. Cooling fan; 64. Cooling housing;

[0025] 7. Diverter pipe; 8. Cooling oil supply pipe;

[0026] 9. Filter; 91. End cap; 92. Guide block; 93. Mounting groove; 94. Filter screen; 95. Sealing gasket;

[0027] 10. Bypass valve; 11. Temperature sensor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-5 A novel dual-support hydraulic motor includes a dual-support hydraulic motor body 1, the oil inlet chamber of the dual-support hydraulic motor body 1 is fixedly connected to the beginning end of the oil inlet pipe 2 through a flange, the oil outlet chamber of the dual-support hydraulic motor body 1 is fixedly connected to the oil outlet pipe 3 through a flange, and the tail end of the oil inlet pipe 2 is fixedly connected to a hydraulic power unit 4.

[0030] The hydraulic power unit 4 is an existing technology in this field. Its main internal components include a motor for providing power input; an oil pump that outputs hydraulic oil under motor drive to form a pressurized oil flow; an oil tank for storing hydraulic oil, dissipating heat, and settling impurities; a relief valve that limits the system's maximum pressure for safety protection; a directional valve that controls the flow direction and on / off of hydraulic oil to change the direction of movement of the actuators; a filter that filters impurities in the hydraulic oil to ensure oil cleanliness; a pressure sensor that monitors the system pressure in real time and provides feedback signals; and accessories such as oil pipes and connectors for hydraulic oil transmission and component connection. These components work together to provide a stable power source for the hydraulic system.

[0031] A tee 5 is fixedly connected to one end of the oil outlet pipe 3 away from the body of the double-supported hydraulic motor 1. A cooling component 6 is provided at the side opening of the tee 5. A diverter pipe 7 is fixedly connected to the top opening of the tee 5. A cooling oil supply pipe 8 is connected through the outer wall of the cooling component 6. Both the diverter pipe 7 and the cooling oil supply pipe 8 are connected through the hydraulic power unit 4.

[0032] Furthermore, the cooling assembly 6 includes a cooling shell 64 made of aerospace aluminum alloy. The inner wall of the cooling shell 64 is treated with a nano-coating and is fixedly connected with staggered wave-shaped baffles 61. This design causes the oil flow to form turbulence to improve heat exchange efficiency. The top opening of the cooling shell 64 is fixedly connected to a sealing cover 62 by waterproof and dustproof bolts. A variable frequency speed-regulating cooling fan 63 is integrated on the top of the sealing cover 62, which can automatically adjust the speed according to the oil temperature.

[0033] Furthermore, the inlet of the cooling assembly 6 is equipped with a quick-replaceable filter 9. The top opening of the filter 9 is fixedly connected to an end cap 91 by quick-release bolts. The inner walls of the filter 9 are fixedly connected with isosceles trapezoidal guide blocks 92 with a streamlined design on both sides. The outer wall of the guide block 92 is provided with a self-locking mounting groove 93. A multi-layer composite filter screen 94 is slidably connected in the mounting groove 93, which can filter impurities of different particle sizes in stages.

[0034] Furthermore, the bottom of the end cap 91 is integrally formed with an oil-resistant and high-temperature-resistant fluororubber sealing gasket 95. The sealing gasket 95, the filter screen 94, and the top of the guide block 92 form a three-dimensional sealing structure to ensure that excellent sealing performance can still be maintained under high-pressure pulse conditions.

[0035] Furthermore, the three-way valve 5 is equipped with an integrated intelligent bypass valve 10. This valve is controlled by pressure and temperature dual signals and can automatically switch the diversion pipe 7 when the cooling component 6 is blocked or the oil temperature is too low. It also has a fault self-diagnosis function, which effectively avoids system pressure buildup and equipment damage.

[0036] Furthermore, a digital temperature sensor 11 is embedded in the oil outlet pipe 3. This sensor, together with the cooling fan 63 of the cooling assembly 6 and the hydraulic power unit 4, forms a closed-loop control system that can automatically adjust the cooling intensity according to the real-time oil temperature to achieve optimal energy efficiency control.

[0037] Working principle:

[0038] After the hydraulic power unit 4 is started, the motor drives the oil pump to press the hydraulic oil in the oil tank into the double-supported hydraulic motor body 1 through the oil inlet pipe 2, driving the motor to rotate and perform work. The high-temperature return oil enters the tee 5 from the oil outlet pipe 3. After the intelligent bypass valve 10 judges the oil temperature and pressure, it is preferentially introduced into the cooling component 6 for forced heat exchange: the oil flow fully contacts the cooling shell 64 in the turbulent channel formed by the corrugated baffle 61. At the same time, the variable frequency speed-regulating cooling fan 63 adjusts the air volume according to the feedback of the digital temperature sensor 11 to achieve efficient cooling. The filtered low-temperature oil returns to the hydraulic power unit 4 through the cooling oil supply pipe 8 to complete the cooling process.

[0039] If the cooling component 6 becomes clogged or the oil temperature is too low, the intelligent bypass valve 10 automatically switches to the direct return oil via the diversion pipe 7 to prevent system pressure buildup. The multi-layer composite filter 94 uses the streamlined design of the guide block 92 to intercept impurities in stages, and its quick-release structure facilitates maintenance. The closed-loop control system optimizes cooling intensity and motor power in real time, ensuring the hydraulic motor operates continuously under stable pressure and temperature. Meanwhile, the relief valve and pressure sensor provide dual safety protection, significantly improving system reliability and energy efficiency.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new type of double support hydraulic motor comprising a double support hydraulic motor body (1), characterized in that, The oil inlet chamber of the dual-support hydraulic motor body (1) is fixedly connected to the first end of the oil inlet pipe (2) through a flange, the oil outlet chamber of the dual-support hydraulic motor body (1) is fixedly connected to the oil outlet pipe (3) through a flange, and the tail end of the oil inlet pipe (2) is fixedly connected to the hydraulic power unit (4). The oil outlet pipe (3) is fixedly connected to a tee (5) at one end away from the double-support hydraulic motor body (1). A cooling component (6) is provided on the side opening of the tee (5). A diverter pipe (7) is fixedly connected to the top opening of the tee (5). A cooling oil supply pipe (8) is connected through the outer wall of the cooling component (6). Both the diverter pipe (7) and the cooling oil supply pipe (8) are connected through the hydraulic power unit (4).

2. A novel dual support hydraulic motor as claimed in claim 1, wherein, The cooling assembly (6) includes a cooling housing (64), the inner wall of which is fixedly connected with staggered partitions (61), the top opening of the cooling housing (64) is fixedly connected with a sealing cover (62) by bolts, and the top of the sealing cover (62) is fixedly connected with a cooling fan (63).

3. A novel dual support hydraulic motor as claimed in claim 1, wherein, The inlet of the cooling assembly (6) is provided with a filter (9), and the top opening of the filter (9) is fixedly connected with an end cap (91) by bolts. The inner walls of the filter (9) are fixedly connected with guide blocks (92) in the shape of isosceles trapezoids. The outer walls of the guide blocks (92) are provided with mounting grooves (93), and a filter screen (94) is slidably connected in the mounting grooves (93).

4. A novel dual support hydraulic motor as claimed in claim 3, wherein, The bottom of the end cap (91) is fixedly connected to a sealing gasket (95) to prevent hydraulic oil leakage during filtration. The sealing gasket (95) abuts against the top of the filter screen (94) and the guide block (92).

5. A novel dual support hydraulic motor as claimed in claim 1, wherein, The tee (5) is equipped with a bypass valve (10), which can automatically switch the diversion pipe (7) when the cooling component (6) is blocked, so as to avoid system pressure buildup.

6. A new type of dual support hydraulic motor as claimed in claim 1, wherein, A temperature sensor (11) that monitors the oil temperature and is linked to the cooling assembly (6) is connected through the oil outlet pipe (3).

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