Hydraulic motor output shaft with locking mechanism

Abstract

The utility model discloses a hydraulic motor output shaft with a locking mechanism, which relates to the field of hydraulic motor output shafts, and adopts the technical scheme that the hydraulic motor output shaft comprises an output shaft body, the outer side wall of the output shaft body is provided with a large bearing for rotatably supporting the output shaft body, and the large bearing is arranged in a bearing seat; the bottom of the bearing seat is connected with an external object through a connecting piece, and a pressing mechanism for pushing the high-friction plate to move downwards to lock the output shaft body is installed at the top end of the bearing seat. The problems that pressure maintaining of a hydraulic system is not stable and the requirement for high-precision positioning and rigid fixing cannot be met are solved, and even if the hydraulic system loses pressure, equipment misoperation or safety accidents caused by the fact that the output shaft body loses constraint can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic motor output shafts, and more specifically, it relates to a hydraulic motor output shaft with a locking mechanism. Background Technology

[0002] Currently, hydraulic motors, as a common power actuator, are widely used in engineering machinery, metallurgical equipment, marine machinery, and other fields. The rotational motion of their output shaft is typically achieved through pressure oil from a hydraulic system. However, in actual working conditions, it is often necessary to fix the output shaft in a specific position to meet equipment debugging, maintenance, or special process requirements.

[0003] Traditional hydraulic motor output shafts typically rely solely on the pressure-holding function of the hydraulic system to maintain their position, which has the following drawbacks:

[0004] 1. The hydraulic system has the risk of leakage, poor pressure holding stability, and the output shaft is prone to slow rotation after long-term operation;

[0005] 2. When the hydraulic system loses pressure, the output shaft loses its restraint, which may lead to equipment malfunction or safety accidents.

[0006] 3. Some high-precision positioning scenarios require mechanical-grade rigid fixation, which cannot be met by hydraulic systems alone.

[0007] Therefore, in order to solve the above-mentioned technical problems, this application proposes a hydraulic motor output shaft with a locking mechanism. Utility Model Content

[0008] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hydraulic motor output shaft with a locking mechanism.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic motor output shaft with a locking mechanism, comprising an output shaft body, a large bearing for rotatable support installed on the outer side wall of the output shaft body, the large bearing being disposed in a bearing seat, the bottom of the bearing seat being connected to an external object via a connector, and a pressing mechanism for locking the output shaft body by pushing a high friction plate downwards is installed at the top of the bearing seat.

[0010] Preferably, the pressing mechanism includes a lower open shell fixed to a bearing seat via a connecting plate. A screw is threadedly connected to the inside of the lower open shell. An elastic compression component is rotatably connected to the bottom of the screw via a bearing. The telescopic end of the elastic compression component is connected to a high friction plate. Guide rails are installed on both sides of the inside of the lower open shell. The two sides of the elastic compression component are slidably connected to the guide rails via sliders.

[0011] Preferably, the elastic compression component includes a horizontal plate A rotatably connected to the bottom end of the screw via a bearing, and the bottom end of the horizontal plate A is fixed to a horizontal plate B via a spring. The bottom end of the horizontal plate B is fixed to a high-friction plate via a vertical rod, and the slider is fixed on both sides of the horizontal plate A.

[0012] Preferably, a telescopic rod is installed between the horizontal plate A and the horizontal plate B.

[0013] Preferably, a wear-resistant ring plate is installed at the contact point between the output shaft and the high-friction plate.

[0014] Preferably, the outer side wall of the output shaft is provided with multiple screw holes, the back of the wear-resistant ring plate is fixedly connected with a fixing ring, and the outer side wall of the fixing ring is provided with multiple through holes that are compatible with the screw holes.

[0015] Preferably, an annular groove seat is installed on the outer wall of the output shaft to limit one end of the wear-resistant annular plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Under normal circumstances, the output shaft of this invention can rotate freely with the support of a large bearing. The large bearing is installed in a bearing housing, which is connected to an external object through a connector to provide support. When it is necessary to lock the output shaft, the high-friction plate is pushed downward by the pressing mechanism. The high-friction plate contacts the output shaft and generates a large frictional force, thereby preventing the output shaft from rotating and achieving mechanical locking of the output shaft. This solves the problems of unstable pressure holding in the hydraulic system and inability to meet the requirements of high-precision positioning and rigid fixation. Even if the hydraulic system loses pressure, the output shaft will not cause equipment malfunction or safety accidents due to loss of restraint.

[0018] 2. When the output shaft is locked, the spring will be compressed. The spring will continuously provide axial elastic force in the compressed state to ensure that the high friction plate and the output shaft maintain a constant contact pressure.

[0019] 3. This utility model installs a wear-resistant ring plate at the contact point between the output shaft and the high friction plate, thereby protecting the output shaft and preventing it from being damaged by the high friction plate. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This utility model Figure 1 Another perspective on the specific structure;

[0023] Figure 3 This is a schematic diagram of the specific structure of the present invention when installing the wear-resistant circular plate;

[0024] Figure 4 This is a schematic diagram of the wear-resistant circular ring plate connection structure in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the lower opening shell in this utility model.

[0026] In the diagram: 1. Output shaft; 2. Large bearing; 3. Bearing housing; 4. High friction plate; 5. Pressing mechanism; 501. Connecting plate; 502. Lower opening shell; 503. Screw; 504. Elastic compression component; 5041. Horizontal plate A; 5042. Spring; 5043. Horizontal plate B; 5044. Vertical rod; 5045. Telescopic rod; 505. Guide rail; 506. Slider; 6. Wear-resistant ring plate; 7. Screw hole; 8. Fixing ring; 9. Through hole; 10. Circular groove seat. Detailed Implementation

[0027] like Figure 1-5 As shown, this utility model provides a hydraulic motor output shaft with a locking mechanism, including an output shaft body 1, a large bearing 2 for rotating support installed on the outer side wall of the output shaft body 1, and the large bearing 2 is set in a bearing seat 3. The bottom of the bearing seat 3 is connected to an external object through a connector, and a pressing mechanism 5 is installed at the top of the bearing seat 3 to push a high friction plate 4 downward to lock the output shaft body 1.

[0028] Traditional hydraulic motors rely on hydraulic systems to maintain the pressure of their output shafts, leading to problems such as poor pressure stability, output shaft malfunction in the event of pressure loss, and inability to meet the requirements for high-precision positioning and rigid fixation. This invention, however, utilizes a hydraulic motor output shaft with a locking mechanism. Under normal operating conditions, the output shaft 1 can rotate freely with the support of a large bearing 2, which is installed within a bearing housing 3. The bearing housing 3 is connected to an external object via a connector for support. When locking the output shaft 1 is required, a downward pressing mechanism 5 pushes a high-friction plate 4 downward. The high-friction plate 4 contacts the output shaft 1, generating significant friction, thereby preventing the output shaft 1 from rotating and achieving mechanical locking. This solves the problems of unstable pressure holding in hydraulic systems and the inability to meet the requirements for high-precision positioning and rigid fixation. Even if the hydraulic system loses pressure, the output shaft 1 will not malfunction or cause a safety accident due to loss of restraint.

[0029] The following is the specific structure of the pressing mechanism 5: The pressing mechanism 5 includes a lower open shell 502 fixed to the bearing seat 3 via a connecting plate 501. A screw 503 is threadedly connected inside the lower open shell 502. An elastic compression component 504 is rotatably connected to the bottom of the screw 503 via a bearing. The telescopic end of the elastic compression component 504 is connected to the high friction plate 4. Guide rails 505 are installed on both sides inside the lower open shell 502. The two sides of the elastic compression component 504 are slidably connected to the guide rails 505 via sliders 506. The elastic compression component 504 includes a horizontal plate A5041 rotatably connected to the bottom end of the screw 503 via a bearing. The bottom end of the horizontal plate A5041 is fixed to the horizontal plate B5043 via a spring 5042. The bottom end of the horizontal plate B5043 is fixed to the high friction plate 4 via a vertical rod 5044. The sliders 506 are fixed on both sides of the horizontal plate A5041.

[0030] When mechanical locking of the hydraulic motor output shaft is required, the rotating plate at the head of the screw 503 is rotated clockwise to drive the screw 503 to rotate clockwise. The screw 503 moves downward along the lower opening shell 502 and rotates along the top of the horizontal plate A5041, simultaneously driving the horizontal plate A5041 to move downward. The horizontal plate A drives the slider 506 to move downward, and the slider 506 slides downward along the guide rail 505 to maintain the linear movement of the horizontal plate A5041. The horizontal plate A5041 drives the horizontal plate B5043 to move downward through the spring 5042. The horizontal plate B5043 drives the high friction plate 4 to move downward, thus contacting the output shaft 1. It should be noted that the surface of the high friction plate 4 is relatively rough, and when it contacts the output shaft 1, it will... The high friction force generates a large friction force, thereby preventing the output shaft 1 from rotating and achieving mechanical locking of the output shaft 1. At the same time, it compresses the spring 5042 between the horizontal plate A5041 and the horizontal plate B5043. The spring 5042 will continuously provide axial elastic force in the compressed state, ensuring that the high friction plate 4 and the output shaft 1 maintain a constant contact pressure (at this time, the rotating plate at the head of the screw 503 is pressed against the surface of the lower opening shell 502). When the position of the parts changes slightly due to vibration, the spring 5042 can compensate for the gap through its own deformation, avoiding the seizing phenomenon caused by rigid contact and always maintaining a reliable locking force. Conversely, rotating the rotating plate at the head of the screw 503 counterclockwise can drive the high friction plate 4 to move upward, so that it does not contact the output shaft 1.

[0031] Furthermore, a telescopic rod 5045 is installed between the horizontal plate A5041 and the horizontal plate B5043. The telescopic rod 5045 maintains the linear movement between the horizontal plate A5041 and the horizontal plate B5043, thereby maintaining the linear extension and contraction of the spring 5042 and preventing the spring 5042 from being damaged by oblique pulling.

[0032] Furthermore, this utility model also installs a wear-resistant annular plate 6 at the contact point between the output shaft 1 and the high-friction plate 4, thereby protecting the output shaft 1 and preventing it from being damaged by the high-friction plate 4. The following is the specific structure of the detachable wear-resistant annular plate 6: multiple screw holes 7 are provided on the outer side wall of the output shaft 1, a fixing ring 8 is fixedly connected to the back of the wear-resistant annular plate 6, and multiple through holes 9 that are adapted to the screw holes 7 are provided on the outer side wall of the fixing ring 8. A circular groove seat 10 is installed on the outer side wall of the output shaft 1 to limit one end of the wear-resistant annular plate 6.

[0033] During installation, insert one end of the wear-resistant circular ring plate 6 into the fixing ring 8 to limit its position. Then, align the through hole 9 on the other end of the fixing ring 8 with the screw hole 7. Next, pass the screw through the through hole 9 and rotate it clockwise to install it into the screw hole 7. This completes the installation of the fixing ring 8. Conversely, remove the screw and pull the wear-resistant circular ring plate 6 out of the fixing ring 8 to remove the wear-resistant circular ring plate 6. The installation and removal are relatively convenient.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A hydraulic motor output shaft with locking mechanism, comprising an output shaft body (1), characterized in that: The outer side wall of the output shaft body (1) is provided with a large bearing (2) for rotating support, and the large bearing (2) is arranged in a bearing seat (3), the bottom of the bearing seat (3) is connected with external objects through a connecting piece, and the top end of the bearing seat (3) is provided with a downward pressing mechanism (5) for pushing the high friction plate (4) to move downward to lock the output shaft body (1).

2. The hydraulic motor output shaft with locking mechanism according to claim 1, characterized in that: The downward pressing mechanism (5) comprises a lower open shell (502) fixed with the bearing seat (3) through a connecting plate (501), the inside of the lower open shell (502) is threadedly connected with a screw rod (503), the bottom of the screw rod (503) is rotatably connected with an elastic compression component (504) through a bearing, the telescopic end of the elastic compression component (504) is connected with the high friction plate (4), both sides of the inside of the lower open shell (502) are provided with guide rails (505), and both sides of the elastic compression component (504) are slidably connected in the guide rails (505) through sliding blocks (506).

3. The hydraulic motor output shaft with locking mechanism according to claim 2, wherein: The elastic compression component (504) comprises a horizontal plate A (5041) rotatably connected with the bottom end of the screw rod (503) through a bearing, the bottom end of the horizontal plate A (5041) is fixed with a horizontal plate B (5043) through a spring (5042), the bottom end of the horizontal plate B (5043) is fixed with the high friction plate (4) through a vertical rod (5044), and the sliding blocks (506) are fixed on both sides of the horizontal plate A (5041).

4. The hydraulic motor output shaft with locking mechanism according to claim 3, characterized in that: A telescopic rod (5045) is arranged between the horizontal plate A (5041) and the horizontal plate B (5043).

5. The hydraulic motor output shaft with locking mechanism of claim 1, wherein: A wear-resistant circular ring plate (6) is arranged at the contact position between the output shaft body (1) and the high friction plate (4).

6. The hydraulic motor output shaft with locking mechanism according to claim 5, wherein: A plurality of screw holes (7) are formed in the outer side wall of the output shaft body (1), a fixing ring (8) is fixedly connected to the back of the wear-resistant circular ring plate (6), and a plurality of through holes (9) are formed in the outer side wall of the fixing ring (8) and matched with the screw holes (7).

7. The hydraulic motor output shaft with locking mechanism of claim 6, wherein: A circular ring groove seat (10) is arranged on the outer side wall of the output shaft body (1) to limit one end of the wear-resistant circular ring plate (6).

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