Cycloid hydraulic motor

Abstract

The utility model discloses a cycloid hydraulic motor which comprises a shell, an oil inlet and an oil outlet, the oil inlet and the oil outlet are integrated on the outer side of the shell, and an outer frame fixedly connected with the outer surface wall of the shell is integrated on the outer side of the oil inlet and the outer side of the oil outlet. In a normal state, the limiting frame is in lap joint with the outer side of the lap joint frame, after an external pipeline is connected with an oil inlet and an oil outlet through the corresponding swivel joints, the limiting frame is pulled through the handle, the limiting frame drives the sliding plate to be in sliding fit with the rotating sleeve, the spring is stretched, and then the limiting frame is deflected; the rotating sleeve is rotationally connected with the outer surface wall of the fixing frame through a rotating shaft until the limiting frame corresponds to the clamping groove, the limiting frame is released to be connected to the top of the rotary connector in a lap joint mode, at the moment, the spring is still in a stretching state, the clamping frame and the clamping groove are matched to limit the horizontal position of the limiting frame, and the limiting frame provides vertical restraining force for the rotary connector. Loosening of the swivel joint is effectively avoided, and the air tightness of the cycloid hydraulic motor at the joint of the oil inlet and the oil outlet is guaranteed.

Description

Technical Field

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

[0002] Cycloidal hydraulic motors are special positive displacement hydraulic transmission devices that use the motion principle of cycloidal gears to convert hydraulic energy into mechanical energy. This type of motor is known for its compact design, high efficiency, and flexibility in a wide range of speed and torque output.

[0003] Chinese Patent Publication No. CN214944700U, published on 20211130, discloses a cycloidal hydraulic motor, comprising: a housing, an output shaft, a distribution plate, a stator-rotor mechanism, and a rear cover. The rear end of the housing is connected to the distribution plate, the stator-rotor mechanism, and the rear cover. The housing further comprises: a stop portion having a first positioning section and a second positioning section extending axially along the output shaft, the first positioning section being located at the front end of the second positioning section, the diameter of the first positioning section being smaller than the diameter of the second positioning section, and the first positioning section and the second positioning section being transitioned by an inclined surface; and a flange portion located between the stop portion and the rear end portion, the flange portion comprising at least two mounting portions having axially extending mounting holes, and an inwardly recessed surface located between the at least two mounting portions and recessed relative to the mounting portions.

[0004] In existing cycloidal hydraulic motors, the oil outlet and inlet are often located on the outside, and the external pipeline is connected to the oil outlet and inlet through corresponding rotary joints. In actual implementation, although the rotary joint has a threaded locking sleeve, it is greatly affected by external vibration and other factors. The connection stability of the oil outlet and inlet of the cycloidal hydraulic motor can be further optimized. Therefore, it is urgent to propose a corresponding cycloidal hydraulic motor to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a cycloidal hydraulic motor in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cycloidal hydraulic motor includes a housing and an oil inlet and an oil outlet integrated on the outside of the housing. An outer frame is integrated on the outside of the oil inlet and the oil outlet and is fixedly connected to the outer wall of the housing. A bracket and a fixing frame are fixedly connected to the outer wall of the outer frame. A rotating sleeve is rotatably connected to the outer wall of the fixing frame via a rotating shaft. A limit frame and an elastic component for maintaining the position of the limit frame are integrated on the top of the rotating sleeve. A limiting component for limiting the horizontal position of the limit frame is integrated on the top of the fixing frame.

[0008] Preferably, the limiting component includes a card holder fixedly connected to the top of the fixing frame, and the top of the card holder has a card groove that fits into the outer wall of the limiting frame.

[0009] Preferably, a handle is fixedly connected to the top of the limiting frame, the handle has a U-shaped structure, and a rubber pad is fixedly connected to the bottom of the limiting frame.

[0010] Preferably, the fixing frame is fixedly connected to the outer wall of the outer frame by a locking rod.

[0011] Preferably, the card holder and the fixing frame are integrally formed.

[0012] Preferably, the elastic component includes a sliding plate fixedly connected to the bottom of the limiting frame, the sliding plate being inserted into the top of the rotating sleeve, and a spring being fixedly connected between the bottom of the sliding plate and the inner wall of the rotating sleeve.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, under normal conditions, the limit bracket overlaps on the outside of the support frame. After the external pipeline is connected to the oil inlet and outlet through the corresponding rotary joints, the limit bracket is pulled by the handle. The limit bracket drives the sliding plate and the rotating sleeve to slide and engage, and the spring is stretched. Then the limit bracket is deflected, and the rotating sleeve is rotated and connected to the outer wall of the fixed frame through the rotating shaft until the limit bracket aligns with the slot. The limit bracket is then released so that it overlaps on the top of the rotary joint. At this time, the spring is still in a stretched state. The engagement between the bracket and the slot restricts the horizontal position of the limit bracket. The limit bracket provides vertical constraint force for the rotary joint, effectively preventing the rotary joint from loosening and ensuring the airtightness of the cycloidal hydraulic motor at the connection between the oil inlet and outlet.

[0015] 2. In this application, the card holder and the fixed frame are fixedly matched, and the rotating sleeve is set based on the fixed frame. This ensures that the working position of the card holder and the rotating sleeve is stable, and the card holder and the limit frame can be easily disassembled and assembled as a whole according to the usage requirements, thereby improving the convenience of using the cycloidal hydraulic motor. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of the scaffolding structure provided according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of the limiting frame structure provided according to an embodiment of the present utility model is shown;

[0019] Figure 4A schematic diagram of a spring structure according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Housing; 2. Oil inlet; 3. Oil outlet; 4. Outer frame; 5. Support frame; 6. Limiting frame; 7. Fixing frame; 8. Locking rod; 9. Card holder; 10. Card slot; 11. Handle; 12. Slide plate; 13. Rotating sleeve; 14. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A cycloidal hydraulic motor includes a housing 1 and an oil inlet 2 and an oil outlet 3 integrated on the outside of the housing 1. An outer frame 4 is integrated on the outside of the oil inlet 2 and the oil outlet 3 and is fixedly connected to the outer wall of the housing 1. A bracket 5 and a fixing frame 7 are fixedly connected to the outer wall of the outer frame 4. A rotating sleeve 13 is rotatably connected to the outer wall of the fixing frame 7 via a rotating shaft. A limit frame 6 and an elastic component for maintaining the position of the limit frame 6 are integrated on the top of the rotating sleeve 13. A limiting component for limiting the horizontal position of the limit frame 6 is integrated on the top of the fixing frame 7.

[0025] Under normal conditions, the limit bracket 6 overlaps the outside of the bracket 5. After the external pipeline is connected to the oil inlet 2 and oil outlet 3 respectively through the corresponding rotary joint, the limit bracket 6 is pulled by the handle 11. The limit bracket 6 drives the slide plate 12 and the rotating sleeve 13 to slide and engage. The spring 14 is stretched. Then the limit bracket 6 is deflected. The rotating sleeve 13 is rotated and connected to the outer wall of the fixed bracket 7 through the rotating shaft until the limit bracket 6 corresponds to the slot 10. The limit bracket 6 is released so that it overlaps the top of the rotary joint. At this time, the spring 14 is still in the stretched state. The cooperation between the bracket 9 and the slot 10 restricts the horizontal position of the limit bracket 6. The limit bracket 6 provides vertical constraint force for the rotary joint, effectively preventing the rotary joint from loosening and ensuring the airtightness of the cycloidal hydraulic motor at the connection between the oil inlet 2 and the oil outlet 3.

[0026] Specifically, such as Figure 2 and Figure 4As shown, the limiting component includes a card holder 9 fixedly connected to the top of the fixed frame 7. The top of the card holder 9 has a slot 10 that fits with the outer wall of the limiting frame 6 to help limit the horizontal position of the limiting frame 6. A handle 11 is fixedly connected to the top of the limiting frame 6. The handle 11 has a U-shaped structure to facilitate the operator to lift the limiting frame 6. A rubber pad is fixedly connected to the bottom of the limiting frame 6 to ensure stable contact between the limiting frame 6 and the rotary joint.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, the fixed frame 7 is fixedly connected to the outer wall of the outer frame 4 via the locking rod 8, the clamp 9 is fixedly engaged with the fixed frame 7, and the rotating sleeve 13 is set based on the fixed frame 7. This ensures that the working position of the clamp 9 and the rotating sleeve 13 is stable, and the clamp 9 and the limit frame 6 can be easily disassembled and assembled according to the usage requirements, thereby improving the convenience of using the cycloidal hydraulic motor.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, the card holder 9 and the fixing frame 7 are integrally formed to ensure the structural strength of the card holder 9. The elastic component includes a sliding plate 12 that is fixedly connected to the bottom of the limiting frame 6. The sliding plate 12 is inserted into the top of the rotating sleeve 13, and a spring 14 is fixedly connected between the bottom of the sliding plate 12 and the inner wall of the rotating sleeve 13. While not affecting the linkage deflection of the rotating sleeve 13 and the limiting frame 6, the limiting frame 6 can be vertically extended and retracted.

[0029] Working principle: Under normal conditions, the limit bracket 6 overlaps the outside of the bracket 5. After the external pipeline is connected to the oil inlet 2 and oil outlet 3 through the corresponding rotary joints, the limit bracket 6 is pulled by the handle 11. The limit bracket 6 drives the slide plate 12 to slide and engage with the rotating sleeve 13, and the spring 14 is stretched. Then the limit bracket 6 is deflected, and the rotating sleeve 13 is rotatably connected to the outer wall of the fixed bracket 7 through the rotating shaft until the limit bracket 6 corresponds with the slot 10. The limit bracket 6 is then released so that it overlaps the top of the rotary joint. At this time, the spring 14 is still in a stretched state, and the slot 9 and... The slot 10 restricts the horizontal position of the limit frame 6, and the limit frame 6 provides vertical constraint for the rotary joint, effectively preventing the rotary joint from loosening and ensuring the airtightness of the cycloidal hydraulic motor at the connection between the oil inlet 2 and the oil outlet 3. The card holder 9 is fixedly engaged with the fixed frame 7, and the rotating sleeve 13 is set based on the fixed frame 7. This ensures that the working position of the card holder 9 and the rotating sleeve 13 is stable, and the card holder 9 and the limit frame 6 can be easily disassembled and assembled according to the usage requirements, thereby improving the ease of use of the cycloidal hydraulic motor.

[0030] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cycloidal hydraulic motor, comprising a housing (1) and an oil inlet (2) and an oil outlet (3) integrated on the outside of the housing (1), characterized in that, The outer side of the oil inlet (2) and oil outlet (3) is integrated with an outer frame (4) that is fixedly connected to the outer wall of the housing (1). The outer wall of the outer frame (4) is fixedly connected with a bracket (5) and a fixing frame (7). The outer wall of the fixing frame (7) is rotatably connected to a rotating sleeve (13) via a rotating shaft. The top of the rotating sleeve (13) is integrated with a limiting frame (6) and an elastic component for maintaining the position of the limiting frame (6). The top of the fixing frame (7) is integrated with a limiting component for limiting the horizontal position of the limiting frame (6).

2. The cycloidal hydraulic motor according to claim 1, characterized in that, The limiting component includes a card holder (9) fixedly connected to the top of the fixing frame (7), and the top of the card holder (9) has a card groove (10) that fits into the outer wall of the limiting frame (6).

3. A cycloidal hydraulic motor according to claim 2, characterized in that, The top of the limiting frame (6) is fixedly connected to a handle (11), which has a U-shaped structure, and the bottom of the limiting frame (6) is fixedly connected to a rubber pad.

4. A cycloidal hydraulic motor according to claim 3, characterized in that, The fixed frame (7) is fixedly connected to the outer wall of the outer frame (4) by the locking rod (8).

5. A cycloidal hydraulic motor according to claim 4, characterized in that, The card holder (9) and the fixing frame (7) are integrally formed.

6. A cycloidal hydraulic motor according to claim 5, characterized in that, The elastic component includes a slide plate (12) fixedly connected to the bottom of the limiting frame (6), the slide plate (12) being inserted into the top of the rotating sleeve (13), and a spring (14) being fixedly connected between the bottom of the slide plate (12) and the inner wall of the rotating sleeve (13).

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