Low-rotating-speed large-torque radial motor

Abstract

The utility model relates to the technical field of radial motors, and discloses a low-rotating-speed large-torque radial motor which comprises a rear cover, the right side of the rear cover is fixedly connected with a stator, the right side of the stator is fixedly connected with a front cover, the left side of the rear cover is fixedly connected with an oil distribution valve set, and the surface of the oil distribution valve set is fixedly connected with a rotor assembly. The surface of the rotor assembly makes contact with the inner wall of the stator, bearings are fixedly connected to the surface of the rotor assembly, the inner wall of the rear cover and the surface of the front cover, through holes are formed in the upper side and the lower side of the rear cover and the upper side and the lower side of the front cover, and heat absorption pipe fittings are fixedly connected to the inner walls of the through holes. Through cooperation of the heat absorption pipe fitting, the air inlet cover, the heat dissipation assembly, the air outlet cover, the second box body and the air outlet hole, heat in the radial motor can be rapidly dissipated, so that the radial motor is not prone to overheating during working, and meanwhile dust in air can be prevented from entering the heat absorption pipe fitting through the dustproof net.

Description

Technical Field

[0001] The utility model relates to the technical field of radial motors, in particular to a low-speed and high-torque radial motor. Background Art

[0002] The low-speed and high-torque radial motor allows hydraulic oil to enter the working chamber of the motor, pushing the plunger to move in the radial direction, thereby driving the rotor to rotate and realizing power output. It is widely used in engineering machinery and equipment (such as cranes, excavators, etc.), ship drive systems, mining machinery, and some large industrial equipment.

[0003] Currently, the low-speed and high-torque radial motors on the market are mainly composed of an oil distribution valve group, a rear cover, a stator, a front cover, bearings, a rotor assembly, and a transmission shaft. For example, a low-speed and high-torque radial piston hydraulic motor disclosed in Chinese Patent Publication No. CN2256470Y. However, when the motor is in use, since the internal heat cannot be quickly dissipated, the motor is prone to overheating and damage during long-term operation. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, such as: currently, the low-speed and high-torque radial motors on the market are mainly composed of an oil distribution valve group, a rear cover, a stator, a front cover, bearings, a rotor assembly, and a transmission shaft. However, when the motor is in use, since the internal heat cannot be quickly dissipated, the motor is prone to overheating and damage during long-term operation. Thus, a low-speed and high-torque radial motor is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A low-speed and high-torque radial motor includes a rear cover. A stator is fixedly connected to the right side of the rear cover. A front cover is fixedly connected to the right side of the stator. An oil distribution valve group is fixedly connected to the left side of the rear cover. A rotor assembly is fixedly connected to the surface of the oil distribution valve group. The surface of the rotor assembly is in contact with the inner wall of the stator. Bearings are fixedly connected to the surface of the rotor assembly, the inner wall of the rear cover, and the surface of the front cover. Through holes are opened on the upper and lower sides of the rear cover and the upper and lower sides of the front cover. Heat absorption pipe fittings are fixedly connected to the inner walls of the through holes. An air intake hood is fixedly connected to the top end of the heat absorption pipe fitting. Heat dissipation components are fixedly connected to the upper surfaces of the air intake hood, the rear cover, the stator, and the front cover. An air outlet hood is fixedly connected to the bottom end of the heat absorption pipe fitting. Second boxes are fixedly connected to the bottom of the air outlet hood, the upper surfaces of the rear cover, the stator, and the front cover. Air outlet holes are opened at the bottoms of the second boxes.

[0007] Preferably, the rotor assembly includes a rotor disc, the surface of the rotor disc is fixedly connected to the inner wall of the bearing, the inner wall of the rotor disc is fixedly connected to the surface of the oil distribution valve group, a transmission shaft is fixedly connected to the left side of the rotor disc, the surface of the transmission shaft contacts the inner wall of the front cover, a plunger body is fitted on the inner wall of the rotor disc, and rollers are fitted on the inner walls of both the plunger body and the stator.

[0008] Preferably, the heat absorption pipe fitting includes a circular ring, upper heat absorption vertical pipes are fixedly connected to both the upper surface of the circular ring and the inner wall of the through hole, lower heat absorption vertical pipes are fixedly connected to both the bottom of the circular ring and the inner wall of the through hole, arc-shaped heat absorption pipes are fixedly connected to both the front and rear sides of the upper heat absorption vertical pipes and the front and rear sides of the lower heat absorption vertical pipes, the top end of the upper heat absorption vertical pipe is fixedly connected to the bottom of the air inlet hood, and the bottom end of the lower heat absorption vertical pipe is fixedly connected to the upper surface of the air outlet hood.

[0009] Preferably, the heat dissipation assembly includes a first box body, the upper surface of the rear cover, the upper surface of the stator and the upper surface of the front cover are all fixedly connected to the bottom of the first box body, an air inlet hole is formed in the upper surface of the first box body, mounting frames are fixedly connected to both the inner wall of the first box body and the upper surface of the air inlet hood, and a heat dissipation fan is fixedly connected to the inner wall of the mounting frame.

[0010] Preferably, U-shaped plates are fixedly connected to both the front and rear sides of the first box body and the front and rear sides of the second box body, a first magnet is fixedly connected to the side of the U-shaped plate away from the stator, second magnets are fitted on the inner walls of the U-shaped plates, the upper surface of the first box body and the bottom of the second box body, dust-proof nets are fixedly connected to both the left and right sides of the second magnets, and the upper surface of the first box body and the bottom of the second box body both contact the surface of the dust-proof nets.

[0011] Preferably, the thickness of the dust-proof net is less than the thickness of the second magnet.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) Through the upper heat absorption vertical pipes, lower heat absorption vertical pipes and arc-shaped heat absorption pipes on the heat absorption pipe fitting of the present utility model, the heat in the radial motor can be absorbed. At the same time, when the heat dissipation fan in the heat dissipation assembly is turned on, a high-speed air flow can be generated in the heat absorption pipe fitting through the heat dissipation fan, and the heat of the heat absorption pipe fitting can be dissipated through the high-speed flowing air flow. At this time, the heat absorption pipe fitting can continuously absorb the heat in the radial motor. Furthermore, through the cooperation of the heat absorption pipe fitting, air inlet hood, heat dissipation assembly, air outlet hood, second box body and air outlet hole, the heat in the radial motor can be quickly dissipated, so that the radial motor is not prone to overheating during operation.

[0014] (2) The utility model can prevent dust in the air from entering the heat absorption pipe fitting through the dust-proof net, thereby preventing the heat in the heat absorption pipe fitting from not dissipating quickly due to dust entering and adsorbing inside the heat absorption pipe fitting. At the same time, through the cooperation of the U-shaped plate, the first magnet and the second magnet, the dust-proof net is more convenient to disassemble and assemble, so as to facilitate the user to clean or replace the dust-proof net. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the structure of the utility model;

[0016] Figure 2 is a front view of the structure of the utility model;

[0017] Figure 3 is a top view of the rear cover, stator and front cover of the utility model;

[0018] Figure 4 is a schematic diagram of the rotor assembly of the utility model;

[0019] Figure 5 is a side view of the heat absorption pipe fitting of the utility model;

[0020] Figure 6 is a bottom view of the first box body of the utility model;

[0021] Figure 7 is a top view of the second box body of the utility model.

[0022] In the figure: 1. Rear cover; 2. Stator; 3. Front cover; 4. Oil distribution valve group; 5. Rotor assembly; 51. Rotor disc; 52. Transmission shaft; 53. Plunger body; 54. Roller; 6. Bearing; 7. Through hole; 8. Heat absorption pipe fitting; 81. Ring; 82. Upper heat absorption vertical pipe; 83. Lower heat absorption vertical pipe; 84. Arc heat absorption pipe; 9. Air inlet hood; 10. Heat dissipation assembly; 101. First box body; 102. Air inlet hole; 103. Mounting rack; 104. Heat dissipation fan; 11. Air outlet hood; 12. Second box body; 13. Air outlet hole; 14. U-shaped plate; 15. First magnet; 16. Second magnet; 17. Dust-proof net. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] Embodiment 1:

[0026] Referring to Figures 1-7 , a low-speed high-torque radial motor includes a rear cover 1. A stator 2 is fixedly connected to the right side of the rear cover 1. A front cover 3 is fixedly connected to the right side of the stator 2. A oil distribution valve group 4 is fixedly connected to the left side of the rear cover 1. A rotor assembly 5 is fixedly connected to the surface of the oil distribution valve group 4. The surface of the rotor assembly 5 contacts the inner wall of the stator 2. Bearings 6 are fixedly connected to the surface of the rotor assembly 5, the inner wall of the rear cover 1, and the surface of the front cover 3. Through holes 7 are opened on the upper and lower sides of the rear cover 1 and the upper and lower sides of the front cover 3. A heat absorption pipe fitting 8 is fixedly connected to the inner wall of the through hole 7. The top end of the heat absorption pipe fitting 8 is fixedly communicated with an air inlet hood 9. Heat dissipation components 10 are fixedly connected to the upper surface of the air inlet hood 9, the upper surface of the rear cover 1, the upper surface of the stator 2, and the upper surface of the front cover 3. The bottom end of the heat absorption pipe fitting 8 is fixedly communicated with an air outlet hood 11. Second boxes 12 are fixedly connected to the bottom of the air outlet hood 11, the upper surface of the rear cover 1, the upper surface of the stator 2, and the upper surface of the front cover 3. Air holes 13 are opened at the bottom of the second boxes 12. The air in the second boxes 12 is discharged through the air holes 13.

[0027] The rotor assembly 5 includes a rotor disc 51. The surface of the rotor disc 51 is fixedly connected to the inner wall of the bearing 6. The inner wall of the rotor disc 51 is fixedly connected to the surface of the oil distribution valve group 4. A transmission shaft 52 is fixedly connected to the left side of the rotor disc 51. The surface of the transmission shaft 52 contacts the inner wall of the front cover 3. A plunger body 53 is fitted to the inner wall of the rotor disc 51. Roller 54 is fitted to the inner wall of the plunger body 53 and the inner wall of the stator 2.

[0028] The heat absorption pipe fitting 8 includes a circular ring 81. Upper heat absorption vertical pipes 82 are fixedly connected to the upper surface of the circular ring 81 and the inner wall of the through hole 7. Lower heat absorption vertical pipes 83 are fixedly connected to the bottom of the circular ring 81 and the inner wall of the through hole 7. Arc-shaped heat absorption pipes 84 are fixedly connected to the front and rear sides of the upper heat absorption vertical pipes 82 and the front and rear sides of the lower heat absorption vertical pipes 83. The top end of the upper heat absorption vertical pipe 82 is fixedly connected to the bottom of the air inlet hood 9. The bottom end of the lower heat absorption vertical pipe 83 is fixedly connected to the upper surface of the air outlet hood 11. Through the upper heat absorption vertical pipes 82, lower heat absorption vertical pipes 83, and arc-shaped heat absorption pipes 84 on the heat absorption pipe fitting 8, the heat inside the radial motor can be absorbed.

[0029] The heat dissipation component 10 includes a first box body 101. The upper surfaces of the rear cover 1, the stator 2, and the front cover 3 are all fixedly connected to the bottom of the first box body 101. An air inlet hole 102 is provided on the upper surface of the first box body 101. Mounting frames 103 are fixedly connected to the inner wall of the first box body 101 and the upper surface of the air inlet hood 9. A heat dissipation fan 104 is fixedly connected to the inner wall of the mounting frame 103. When the heat dissipation fan 104 is turned on, a high-speed air flow can be generated in the heat absorption pipe 8 through the heat dissipation fan 104, and the heat of the heat absorption pipe 8 can be dissipated through the high-speed flowing air flow. At this time, the heat absorption pipe 8 can continue to absorb the heat in the radial motor.

[0030] Embodiment Two:

[0031] Referring to Figures 1-2 , U-shaped plates 14 are fixedly connected to the front and rear sides of the first box body 101 and the front and rear sides of the second box body 12. A first magnetic block 15 is fixedly connected to the side of the U-shaped plate 14 away from the stator 2. Second magnetic blocks 16 are arranged in a fitting manner on the inner wall of the U-shaped plate 14, the upper surface of the first box body 101, and the bottom of the second box body 12. Dust-proof nets 17 are fixedly connected to the left and right sides of the second magnetic blocks 16. The upper surface of the first box body 101 and the bottom of the second box body 12 are both in contact with the surface of the dust-proof net 17. The thickness of the dust-proof net 17 is less than the thickness of the second magnetic block 16. The dust-proof net 17 can prevent dust in the air from entering the heat absorption pipe 8, thereby preventing the heat of the heat absorption pipe 8 from not being dissipated quickly due to dust entering and adhering to the inside of the heat absorption pipe 8. At the same time, when the first magnetic block 15 is aligned with the second magnetic block 16, the dust-proof net 17 can be fixed on the first box body 101 or the second box body 12 through the mutual suction force between the first magnetic block 15 and the second magnetic block 16. When the thrust applied by the user to the dust-proof net 17 is greater than the suction force between the first magnetic block 15 and the second magnetic block 16, the dust-proof net 17 can be directly separated from the first box body 101 or the second box body 12. Therefore, through the cooperation of the U-shaped plate 14, the first magnetic block 15, and the second magnetic block 16, the disassembly and assembly of the dust-proof net 17 are more convenient, facilitating the user to clean or replace the dust-proof net 17.

[0032] In the present utility model, when the user uses the low-speed high-torque radial motor, hydraulic oil is distributed into the rotor disc 51 through the oil distribution valve group 4. Then, the plunger body 53 pushes the roller 54 under the action of the hydraulic oil, and through the cooperation of the ball and the stator 2, the transmission shaft 52 rotates. At the same time, through the upper heat absorption vertical pipe 82, the lower heat absorption vertical pipe 83, and the arc-shaped heat absorption pipe 84 on the heat absorption pipe 8, the heat in the radial motor can be absorbed. Then, by turning on the heat dissipation fan 104, a high-speed air flow can be generated in the heat absorption pipe 8, and the heat of the heat absorption pipe 8 can be dissipated through the high-speed flowing air flow. At this time, the heat absorption pipe 8 can continuously absorb the heat in the radial motor.

[0033] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

[0034] It should be noted that, in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

Claims

1. A low-speed, high-torque radial motor, comprising a rear cover (1), characterized in that: The right side of the rear cover (1) is fixedly connected to the stator (2), the right side of the stator (2) is fixedly connected to the front cover (3), the left side of the rear cover (1) is fixedly connected to the oil distribution valve group (4), the surface of the oil distribution valve group (4) is fixedly connected to the rotor assembly (5), the surface of the rotor assembly (5) is in contact with the inner wall of the stator (2), the surface of the rotor assembly (5), the inner wall of the rear cover (1) and the surface of the front cover (3) are all fixedly connected to the bearing (6), the upper and lower sides of the rear cover (1) and the upper and lower sides of the front cover (3) are each provided with a through hole (7), the inner wall of the through hole (7) A heat absorbing pipe (8) is fixedly connected, the top end of the heat absorbing pipe (8) is fixedly connected to an air inlet hood (9), the upper surface of the air inlet hood (9), the upper surface of the rear cover (1), the upper surface of the stator (2) and the upper surface of the front cover (3) are all fixedly connected to a heat dissipation assembly (10), the bottom end of the heat absorbing pipe (8) is fixedly connected to an air outlet hood (11), the bottom of the air outlet hood (11), the upper surface of the rear cover (1), the upper surface of the stator (2) and the upper surface of the front cover (3) are all fixedly connected to a second box body (12), and an air outlet hole (13) is provided at the bottom of the second box body (12).

2. A low speed high torque radial motor according to claim 1, characterized in that: The rotor assembly (5) comprises a rotor disk (51), the surface of the rotor disk (51) is fixedly connected to the inner wall of the bearing (6), the inner wall of the rotor disk (51) is fixedly connected to the surface of the oil distribution valve group (4), the left side of the rotor disk (51) is fixedly connected to a transmission shaft (52), the surface of the transmission shaft (52) is in contact with the inner wall of the front cover (3), the inner wall of the rotor disk (51) is fitted with a plunger body (53), and the inner wall of the plunger body (53) and the inner wall of the stator (2) are both fitted with rollers (54).

3. A low speed and high torque radial motor according to claim 1, characterized in that: The heat absorbing pipe member (8) comprises a circular ring (81), the upper surface of the circular ring (81) and the inner wall of the through hole (7) are both fixedly connected with an upper heat absorbing vertical pipe (82), the bottom of the circular ring (81) and the inner wall of the through hole (7) are both fixedly connected with a lower heat absorbing vertical pipe (83), the front and rear sides of the upper heat absorbing vertical pipe (82) and the front and rear sides of the lower heat absorbing vertical pipe (83) are both fixedly connected with arc-shaped heat absorbing pipes (84), the top end of the upper heat absorbing vertical pipe (82) is fixedly connected to the bottom of the air inlet hood (9), and the bottom end of the lower heat absorbing vertical pipe (83) is fixedly connected to the upper surface of the air outlet hood (11).

4. A low speed and high torque radial motor according to claim 1, characterized in that: The heat dissipation assembly (10) comprises a first box body (101), the upper surface of the rear cover (1), the upper surface of the stator (2) and the upper surface of the front cover (3) are all fixedly connected to the bottom of the first box body (101), an air inlet hole (102) is provided on the upper surface of the first box body (101), the inner wall of the first box body (101) and the upper surface of the air inlet cover (9) are both fixedly connected to a mounting frame (103), and the inner wall of the mounting frame (103) is fixedly connected to a heat dissipation fan (104).

5. A low speed high torque radial motor according to claim 4, characterized in that: The front and rear sides of the first box body (101) and the front and rear sides of the second box body (12) are both fixedly connected with a U-shaped plate (14); the side of the U-shaped plate (14) away from the stator (2) is fixedly connected with a first magnetic block (15); the inner wall of the U-shaped plate (14), the upper surface of the first box body (101) and the bottom of the second box body (12) are all fitted with a second magnetic block (16); the left and right sides of the second magnetic block (16) are both fixedly connected with a dustproof net (17); the upper surface of the first box body (101) and the bottom of the second box body (12) are both in contact with the surface of the dustproof net (17).

6. A low speed high torque radial motor according to claim 5, characterized in that: The thickness of the dustproof net (17) is smaller than the thickness of the second magnetic block (16).

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