Disc flow distribution cycloid hydraulic motor with noise reduction function

Abstract

The utility model relates to the technical field of disc flow distribution cycloid hydraulic motors, in particular to a disc flow distribution cycloid hydraulic motor with a noise reduction function, which comprises a motor shell, a movable cylindrical part is arranged on the motor shell, a circular through hole is arranged at the middle end of the movable cylindrical part, and a rectangular through hole is arranged on one side of the circular through hole. The motor shell and the oil supply and discharge component are movably sleeved in the circular through hole and the rectangular through hole respectively; a storage cavity is formed in the position, away from the circular through hole, of the movable cylindrical part, the lower end of the storage cavity is open, and sound absorption cotton is movably arranged in the storage cavity. According to the utility model, the sound-absorbing cotton is firstly stuffed into the storage chamber from the opening at the lower end of the storage chamber, then the circular through hole and the rectangular through hole are formed, and then the motor shell and the oil supply and discharge component are respectively sleeved in the circular through hole and the rectangular through hole, so that the outer cambered surface of the motor shell and the whole oil supply and discharge component are wrapped by the sound-absorbing cotton; and noise generated when the disc flow distribution hydraulic motor works is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of disc-flow cycloid hydraulic motors, in particular to a disc-flow cycloid hydraulic motor with a noise reduction function. Background Art

[0002] The disc-distributed hydraulic motor is an end-distributed cycloid hydraulic motor that adopts advanced column-mounted stator and rotor parameter design. It has high working efficiency, high working pressure, low starting pressure, stable operation, and can obtain the same output torque in both directions.

[0003] The existing technology mostly adopts a disc-distributed cycloidal hydraulic motor that is easy to dissipate heat, such as the one disclosed in the announcement number CN220815881U. This technology includes a hydraulic motor housing, a shell is fixedly installed on the outside of the hydraulic motor housing, two air outlets are opened on the front side wall of the shell, and the inner sides of the two air outlets are fixedly installed with a second filter screen, and the rear side wall of the shell is fixedly installed with a partition plate and two heat dissipation covers. This technology increases the heat dissipation area of ​​the heat dissipation fins through the heat dissipation groove, and under the action of the heat dissipation fan, it can accelerate the air in the shell, thereby improving the heat dissipation effect of the heat dissipation fins. However, the above technology still has problems in use due to structural limitations:

[0004] When using a disc-distributed flow hydraulic motor, it generates continuous vibration during operation, which in turn creates a lot of noise. If workers are in this environment for a long time, their physical and mental health will be seriously damaged. The outer curved end of the disc-distributed flow hydraulic motor is composed of a motor cylindrical shell and a rectangular shell for the oil supply and discharge parts. The existing device and the above-mentioned device lack a noise reduction structure for the connected cylindrical shell and rectangular shell, and the noise cannot be effectively reduced. Utility Model Content

[0005] The utility model aims to solve the problem that the prior art lacks a noise reduction structure for connecting a cylindrical shell and a rectangular shell, and proposes a disc-matched flow cycloid hydraulic motor with a noise reduction function.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A disc-distributed flow cycloid hydraulic motor with a noise reduction function comprises a motor housing, a front cover head is fixedly connected to the upper end of the motor housing, an oil supply and discharge component is fixedly connected to the side end of the motor housing, an output shaft is rotatably arranged through the motor housing, a movable cylindrical component is arranged on the motor housing, a circular through hole is opened at the middle end of the movable cylindrical component, a rectangular through hole is opened on one side of the circular through hole, and the motor housing and the oil supply and discharge component are movably sleeved in the circular through hole and the rectangular through hole respectively;

[0008] The movable cylindrical part is provided with a storage chamber away from the circular through hole, and the lower end of the storage chamber is opened, and sound-absorbing cotton is movably arranged in the storage chamber, the lower end of the front cover is integrally formed with an upper circular ring part and an upper rectangular part connected to each other, the lower end of the movable cylindrical part is provided with a lower circular ring part and a lower rectangular part connected to each other, and the front cover is provided with a clamping mechanism for clamping the movable cylindrical part.

[0009] Preferably, the upper circular ring member and the movable cylindrical member are movably opposed to each other away from the circular through hole, the upper rectangular member is movably sleeved at the upper end of the rectangular through hole, and the lower circular ring member and the lower rectangular member are movably sleeved at the lower end opening of the storage chamber and the lower end of the rectangular through hole respectively.

[0010] Preferably, a first threaded hole is provided at the lower end of the lower rectangular member and the lower end of the motor housing, and the lower rectangular member and the motor housing are fixedly connected via the first threaded hole and bolts.

[0011] Preferably, the clamping mechanism includes an equipment chamber opened on the front cover head, in which a rotating gear ring is rotatably installed, and the center of the rotating gear ring is hollow, and two horizontal slide grooves are opened in the equipment chamber, and two movable racks are slidably sleeved in the two horizontal slide grooves, and the two movable racks are meshed and connected with the rotating gear ring.

[0012] Preferably, the clamping mechanism also includes two guide grooves opened in the equipment chamber, and the two guide grooves are connected to the outer end of the front cover head, the two movable racks are fixedly connected with a connecting long rod, and the connecting long rod is composed of a horizontal long rod and a vertical long rod, the vertical long rod of the connecting long rod passes through the sliding sleeve on the guide groove, and the lower end of the vertical long rod of the connecting long rod is fixedly connected with a clamping plate, and the vertical long rod of the connecting long rod and the front cover head are respectively provided with a second threaded hole and a third threaded hole.

[0013] Preferably, one end of the output shaft located in the equipment chamber passes through the hollow part of the rotating gear ring, the clamping plate is an arc-shaped plate structure, and the vertical long rod of the connecting long rod and the front cover head are fixedly connected through the second threaded hole, the third threaded hole and bolts.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model first inserts the sound-absorbing cotton into the storage chamber from the lower end opening of the storage chamber, and then inserts the lower end circular ring member and the lower end rectangular member into the lower end opening of the storage chamber and the lower end of the rectangular through hole respectively, so that the sound-absorbing cotton is limited in the storage chamber, and then a circular through hole and a rectangular through hole are provided, and then the motor housing and the oil supply and discharge components are respectively sleeved in the circular through hole and the rectangular through hole, and the movable cylindrical member is pushed upward until the upper end circular ring member and the movable cylindrical member are abutted, and the upper end rectangular member is sleeved in the upper end of the rectangular through hole, so that the outer arc surface of the motor housing and the entire oil supply and discharge components are wrapped by the sound-absorbing cotton, thereby effectively reducing the noise generated when the disc-distribution hydraulic motor is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a motor housing and a movable cylindrical member combination of a disc-distributed flow cycloid hydraulic motor with noise reduction function proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the motor housing structure of a disc-flow cycloid hydraulic motor with noise reduction function proposed by the utility model;

[0018] Figure 3 It is a left-side cross-sectional schematic diagram of a motor housing and a movable cylindrical member combination of a disc-distributed flow cycloid hydraulic motor with noise reduction function proposed by the utility model;

[0019] Figure 4 It is a left-side cross-sectional schematic diagram of a movable cylindrical part of a disc-distributed flow cycloid hydraulic motor with noise reduction function proposed by the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the lower end circular ring of a disc-distributed flow cycloid hydraulic motor with noise reduction function proposed by the utility model;

[0021] Figure 6 This is a top-sectional schematic diagram of the front cover of a disc-flow cycloid hydraulic motor with noise reduction function proposed by the utility model.

[0022] In the figure: 1. Motor housing; 2. Front cover; 3. Oil supply and discharge components; 4. Output shaft; 5. Movable cylindrical part; 6. Circular through hole; 7. Rectangular through hole; 8. Storage chamber; 9. Sound-absorbing cotton; 10. Upper circular ring part; 11. Upper rectangular part; 12. Lower circular ring part; 13. Lower rectangular part; 14. Guide slide; 15. Clamping plate; 16. First threaded hole; 17. Rotating gear ring; 18. Horizontal slide; 19. Moving rack; 20. Connecting long rod; 21. Second threaded hole; 22. Third threaded hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-Figure 6 A disc-distributed flow cycloid hydraulic motor with noise reduction function comprises a motor housing 1, as shown in the attached Figure 1 As shown, a front cover 2 is fixedly connected to the upper end of the motor housing 1, and an oil supply and discharge component 3 is fixedly connected to the side end of the motor housing 1. The motor housing 1 is cylindrical, and the oil supply and discharge component 3 is nearly rectangular, and motor components such as a stator and a rotor are arranged in the motor housing 1. Since motor components such as a stator and a rotor are mature technical means in the field to which this technology belongs, they are not described in detail. An output shaft 4 is rotatably arranged through the motor housing 1, and a movable cylindrical part 5 is arranged on the motor housing 1. A circular through hole 6 is opened at the middle end of the movable cylindrical part 5, and a rectangular through hole 7 is opened on one side of the circular through hole 6, so that the outer arc surface of the motor housing 1 and the oil supply and discharge component 3 are movably sleeved in the circular through hole 6 and the rectangular through hole 7 respectively;

[0025] Preferably, a storage chamber 8 is provided in the movable cylindrical member 5 away from the circular through hole 6, and the lower end of the storage chamber 8 is opened, and the sound-absorbing cotton 9 is inserted into the storage chamber 8 through the opening. When the outer arc surface of the motor housing 1 and the oil supply and discharge component 3 are movably sleeved in the circular through hole 6 and the rectangular through hole 7 respectively, the sound-absorbing cotton 9 is used to absorb the noise generated when the disc distribution hydraulic motor is working, and the lower end of the front cover head 2 is integrally formed with an upper circular ring member 10 and an upper rectangular member 11 connected to each other, and the lower end of the movable cylindrical member 5 is provided with a lower circular ring member 12 and a lower rectangular member 13 connected to each other. A clamping mechanism is provided on the front cover head 2, and it is used to clamp the movable cylindrical member 5 and limit and fix the movable cylindrical member 5.

[0026] As attached Figure 3 As shown, when the upper circular ring member 10 and the movable cylindrical member 5 move away from the circular through hole 6 and abut against each other, the upper rectangular member 11 is movably sleeved on the upper end of the rectangular through hole 7, and the lower circular ring member 12 and the lower rectangular member 13 are movably sleeved on the lower end opening of the storage chamber 8 and the lower end of the rectangular through hole 7 respectively, the upper and lower ends of the rectangular through hole 7 and the lower end opening of the storage chamber 8 are closed to ensure the sound absorption effect of the sound-absorbing cotton 9. In order to allow the disc-distribution hydraulic motor to dissipate heat normally, the lower end of the motor housing 1 is not wrapped, so that the disc-distribution hydraulic motor can dissipate heat through the lower end of the motor housing 1. At the same time, a large area of ​​the outer arc surface of the motor housing 1 is wrapped with sound-absorbing cotton 9, thereby effectively reducing noise.

[0027] Preferably, a first threaded hole 16 is provided at the lower end of the lower rectangular member 13 and the lower end of the motor housing 1, and the lower rectangular member 13 and the motor housing 1 are fixedly connected via the first threaded hole 16 and bolts to maintain the lower circular ring member 12 and the lower rectangular member 13 at the lower end of the motor housing 1.

[0028] Preferably, the clamping mechanism includes an equipment chamber opened in the front cover head 2, in which a rotating ring gear 17 is rotatably installed, and the center of the rotating ring gear 17 is hollow, and two horizontal slide grooves 18 are opened in the equipment chamber, and two movable racks 19 are slidably sleeved in the two horizontal slide grooves 18 respectively, and the movable racks 19 are linearly guided by the horizontal slide grooves 18, and the two movable racks 19 are meshed and connected with the rotating ring gear 17, so that the two movable racks 19 can respectively move closer to each other or move away from each other in the opposite direction.

[0029] Preferably, the clamping mechanism further comprises two guide slots 14 provided in the equipment chamber, and the two guide slots 14 are connected to the outer end of the front cover head 2, and the two movable racks 19 are fixedly connected to the connecting long rod 20, as shown in the attached Figure 6 As shown, the connecting rod 20 is composed of a horizontal rod and a vertical rod, the vertical rod of the connecting rod 20 passes through the sliding sleeve on the guide slide groove 14, and the lower end of the vertical rod of the connecting rod 20 is fixedly connected with a clamping plate 15, and the clamping plate 15 is an arc-shaped plate structure. When the two moving racks 19 are meshed and connected with the rotating ring gear 17, by pushing one of the clamping plates 15, the two clamping plates 15 can clamp or release the movable cylindrical member 5 respectively, and the vertical rod of the connecting rod 20 and the front cover head 2 are respectively provided with a second threaded hole 21 and a third threaded hole 22.

[0030] As attached Figure 6 As shown, one end of the output shaft 4 located in the equipment chamber passes through the hollow part of the rotating gear ring 17. When the two clamping plates 15 clamp the movable cylindrical part 5, the vertical long rod connecting the long rod 20 and the front cover head 2 are fixedly connected through the second threaded hole 21, the third threaded hole 22 and the bolts to maintain the clamping state of the movable cylindrical part 5.

[0031] The functional principle of the utility model can be explained through the following operation modes:

[0032] First, insert the sound-absorbing cotton 9 into the storage chamber 8 from the lower opening of the storage chamber 8, and then insert the lower circular ring member 12 and the lower rectangular member 13 into the lower opening of the storage chamber 8 and the lower end of the rectangular through hole 7 respectively, so that the sound-absorbing cotton 9 is limited in the storage chamber 8, and then the motor housing 1 and the oil supply and discharge component 3 are respectively sleeved in the circular through hole 6 and the rectangular through hole 7, and the movable cylindrical member 5 is pushed upward until the upper circular ring member 10 is against the movable cylindrical member 5, and the upper rectangular member 11 is sleeved in the upper end of the rectangular through hole 7, and then the lower rectangular member 13 and the motor housing 1 are fixedly connected by using the first threaded hole 16 and the bolt;

[0033] Thereafter, one of the clamping plates 15 is pushed by hand to move toward the movable cylindrical member 5, as shown in the attached Figure 6 As shown, the clamping plate 15 drives the movable rack 19 to move through the connecting long rod 20, and due to the meshing transmission of the rotating ring gear 17 and the two movable racks 19, the two movable racks 19 are allowed to move relatively close to each other, and at the same time, the two movable racks 19 drive the two clamping plates 15 to move relatively close to each other and clamp the movable cylindrical part 5, and then the second threaded hole 21, the third threaded hole 22 and the bolt are used to fix the vertical long rod connecting the long rod 20 and the front cover head 2.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A disc-distributed flow cycloid hydraulic motor with noise reduction function, comprising a motor housing (1), a front cover (2) fixedly connected to the upper end of the motor housing (1), an oil supply and discharge component (3) fixedly connected to the side end of the motor housing (1), an output shaft (4) rotatably disposed through the motor housing (1), characterized in that: The motor housing (1) is provided with a movable cylindrical member (5), a circular through hole (6) is provided at the middle end of the movable cylindrical member (5), a rectangular through hole (7) is provided on one side of the circular through hole (6), and the motor housing (1) and the oil supply and discharge member (3) are movably sleeved in the circular through hole (6) and the rectangular through hole (7) respectively; The movable cylindrical member (5) is provided with a storage chamber (8) away from the circular through hole (6), and the lower end of the storage chamber (8) is open. A sound-absorbing cotton (9) is movably arranged in the storage chamber (8). The lower end of the front cover (2) is integrally formed with an upper circular ring member (10) and an upper rectangular member (11) connected to each other. The lower end of the movable cylindrical member (5) is provided with a lower circular ring member (12) and a lower rectangular member (13) connected to each other. A clamping mechanism is provided on the front cover (2) and is used to clamp the movable cylindrical member (5).

2. A disc-flow cycloid hydraulic motor with noise reduction function according to claim 1, characterized in that: The upper circular ring member (10) and the movable cylindrical member (5) are movably abutted against each other at a position away from the circular through hole (6); the upper rectangular member (11) is movably sleeved at the upper end of the rectangular through hole (7); and the lower circular ring member (12) and the lower rectangular member (13) are movably sleeved at the lower end opening of the storage chamber (8) and the lower end of the rectangular through hole (7), respectively.

3. A disc-flow cycloid hydraulic motor with noise reduction function according to claim 2, characterized in that: The lower end of the lower rectangular member (13) and the lower end of the motor housing (1) are both provided with a first threaded hole (16), and the lower rectangular member (13) and the motor housing (1) are fixedly connected via the first threaded hole (16) and bolts.

4. A disc-flow cycloid hydraulic motor with noise reduction function according to claim 3, characterized in that: The clamping mechanism comprises an equipment chamber opened on the front cover head (2), a rotating gear ring (17) is rotatably installed in the equipment chamber, and the center of the rotating gear ring (17) is hollow, and two horizontal slide grooves (18) are opened in the equipment chamber, and two movable racks (19) are respectively slidably sleeved in the two horizontal slide grooves (18), and the two movable racks (19) are meshingly connected with the rotating gear ring (17).

5. The disc-flow cycloid hydraulic motor with noise reduction function according to claim 4, characterized in that: The clamping mechanism also includes two guide grooves (14) opened in the equipment chamber, and the two guide grooves (14) are connected to the outer end of the front cover head (2), the two movable racks (19) are fixedly connected to the connecting rod (20), and the connecting rod (20) is composed of a horizontal long rod and a vertical long rod, the vertical long rod of the connecting rod (20) passes through the sliding sleeve on the guide groove (14), and the lower end of the vertical long rod of the connecting rod (20) is fixedly connected to the clamping plate (15), and the vertical long rod of the connecting rod (20) and the front cover head (2) are respectively provided with a second threaded hole (21) and a third threaded hole (22).

6. A disc-flow cycloid hydraulic motor with noise reduction function according to claim 5, characterized in that: One end of the output shaft (4) located in the equipment chamber passes through the hollow part of the rotating gear ring (17); the clamping plate (15) is an arc-shaped plate structure; the vertical long rod of the connecting long rod (20) and the front cover head (2) are fixedly connected through a second threaded hole (21), a third threaded hole (22) and bolts.

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