Hydraulic hoist bearing device

By combining a servo motor-controlled shaft with a self-locking device, the hydraulic hoist's lifting plate achieves uniform speed and accelerated descent with self-locking, solving the problem of low stability in hydraulic hoists and improving safety.

CN223547587UActive Publication Date: 2025-11-14SHANGHAI TIEK TRANSMISSION SYSTEM CO LTD
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Patent Information

Application Number
CN202423117115.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-11-14
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing hydraulic hoists have low stability during lifting, which can easily lead to tool shaking and high danger, with the risk of chain breakage and falling.

Method used

A servo motor-controlled shaft drives a rotating drum to wind up the steel wire rope. Combined with a self-locking device, the lifting plate achieves uniform speed and accelerated descent through the cooperation of a lever and a rotating plate, preventing objects from falling.

Benefits of technology

This improves the stability of the hydraulic hoist during lifting and lowering, preventing swaying and falls, and ensuring safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of hydraulic hoist hoisting, in particular to a hydraulic hoist bearing device which comprises a supporting frame, one end of the supporting frame is fixedly connected with a lifting device, the lifting device is fixedly connected with a self-locking device, the self-locking device is in sliding contact with the supporting frame, the supporting frame is provided with a sliding groove, and the supporting frame is fixedly connected with a fixing rod. The fixing rod is matched with the self-locking device, the device can conveniently shake in the lifting process, meanwhile, when the lifting plate descends in an accelerated mode, self-locking is generated, the lifting plate stops descending, and objects are prevented from falling.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic hoist lifting, specifically a hydraulic hoist bearing device. Background Technology

[0002] A load-bearing device is a device used to support an object and move it up or down. In mechanical lifting equipment, hydraulic hoists are popular due to their electro-hydraulic control, smooth lifting, flexible and jam-free operation, and wide load-bearing capacity, leading to their increasingly widespread use.

[0003] Existing hydraulic hoists have low stability during lifting and lowering. During lifting and lowering, as well as during maintenance, tools such as chains and wire ropes are prone to swaying, posing a high risk of chain breakage and a fall.

[0004] The present invention aims to solve the technical problems existing in the prior art. To this end, a hydraulic hoist bearing device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a hydraulic hoist bearing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hydraulic hoist bearing device includes a support frame, one end of which is fixedly connected to a lifting device, and the lifting device is fixedly connected to a self-locking device, which slides in contact with the support frame.

[0008] The support frame has a sliding groove, and a fixed rod is fixedly connected to the support frame. The fixed rod cooperates with the self-locking device.

[0009] As a further embodiment of this utility model: the servo motor is fixedly connected to the support frame, the servo motor is fixedly connected to a rotating shaft, the rotating shaft is fixedly connected to a rotating cylinder, and the rotating cylinder is sleeved on the cylindrical surface of the rotating shaft.

[0010] As a further embodiment of this utility model: a steel wire rope is fixedly connected to the cylindrical surface of the rotating drum, a lifting plate is fixedly connected to the steel wire rope, a hook is fixedly connected to one end of the lifting plate, and a self-locking device is fixedly connected to both sides of the lifting plate.

[0011] As a further embodiment of this utility model: the self-locking device includes a guide block, which is fixedly connected to the lifting plate, slides in contact with the support frame, is fixedly connected to a limit block, is fixedly connected to a spring, and is rotatably connected to a rotating plate.

[0012] As a further embodiment of this utility model: the rotating plate is fixedly connected to the spring, a slot is provided in the rotating plate, and a lever is rotatably connected to the rotating plate. The lever is inclined and one side of the lever is in contact with the rotating plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The servo motor controls the rotation of the shaft, which drives the rotating drum to rotate. The rotating drum winds up the wire rope, which in turn drives the lifting plate to rise. Under normal circumstances, the servo motor controls the shaft to rotate at a constant speed, meaning the rotating drum drives the lifting plate to move vertically at a constant speed via the wire rope. The lifting plate then drives the guide block to move at a constant speed. When the guide block descends, it drives the actuating rod to move. However, because several fixed rods are installed in the support frame, the actuating rod contacts the fixed rods during its descent. The actuating rod is squeezed by the fixed rods and tends to be in a vertical state. Since one side of the actuating rod contacts the rotating plate, when the actuating rod rotates clockwise, it enters the slot. When the actuating rod rotates counterclockwise, it drives the rotating plate to rotate counterclockwise. Therefore, when the actuating rod is squeezed by the fixed rods and tends to be in a vertical state, the actuating rod... The rotating plate tends to be horizontal. When the actuating rod and the rotating plate move to the gap between several fixed rods, the rotating plate is reset by the spring, and the actuating rod is also reset, thus completing the cycle. The reset time of the actuating rod and the rotating plate is a fixed time. When a fall occurs, that is, when the lifting plate accelerates downward, the lifting plate drives the actuating rod and the rotating plate to accelerate downward through the guide block. Since the reset time of the actuating rod and the rotating plate is fixed and the spacing between the fixed rods is fixed, when the speed of the actuating rod and the rotating plate increases, the rotating plate may not reset completely. That is, one end of the rotating plate tending to be horizontal is squeezed by the fixed rod, and the other end of the rotating plate is limited by the limiting block, thus forming a self-locking mechanism to stop the lifting plate from falling. This device can prevent the noodles from shaking during the lifting process, and at the same time, when the lifting plate accelerates downward, it self-locks to stop the lifting plate from falling, thus preventing the object from falling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a hydraulic hoist bearing device.

[0015] Figure 2 for Figure 1 Side sectional view

[0016] Figure 3 This is a schematic diagram of the support frame in a hydraulic hoist bearing device.

[0017] Figure 4 This is a schematic diagram of the self-locking device in a hydraulic hoist bearing device.

[0018] 1-Support frame, 2-Lifting plate, 3-Hook, 4-Servo motor, 5-Rotating shaft, 6-Rotating drum, 7-Wire rope, 8-Fixing rod, 9-Slide groove, 10-Spring, 11-Limit block, 12-Slide groove, 13-Actuating rod, 14-Card slot, 15-Rotating plate. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0021] Please see Figure 1-4 A hydraulic hoist bearing device includes a support frame 1, one end of which is fixedly connected to a lifting device, and the lifting device is fixedly connected to a self-locking device, which is in sliding contact with the support frame 1.

[0022] The support frame 1 has a sliding groove 12 and a fixed rod 5 is fixedly connected to the support frame 1. The fixed rod 5 cooperates with the self-locking device. This device can prevent the noodles from shaking during the lifting process. At the same time, when the lifting plate 2 accelerates down, it self-locks to stop the lifting plate 2 from falling, thus preventing the object from falling.

[0023] Please see Figure 1 and Figure 2 The servo motor 4 is fixedly connected to the support frame 1. The servo motor 4 is fixedly connected to the rotating shaft 5. The rotating shaft 5 is fixedly connected to the rotating cylinder 6. The rotating cylinder 6 is sleeved on the cylindrical surface of the rotating shaft 5.

[0024] Please see Figure 1 and Figure 2The cylindrical surface of the rotating drum 6 is fixedly connected to a steel wire rope 7, and the steel wire rope 7 is fixedly connected to a lifting plate 2. A hook 3 is fixedly connected to one end of the lifting plate 2, and self-locking devices are fixedly connected to both sides of the lifting plate 2. The servo motor 4 controls the rotating shaft 5 to rotate, and the rotating shaft 5 drives the rotating drum 6 to rotate. The rotating drum 6 winds up the steel wire rope 7, and the steel wire rope 7 drives the lifting plate 2 to rise. Under normal circumstances, the servo motor 4 controls the rotating shaft 5 to rotate at a constant speed, that is, the rotating drum 6 drives the lifting plate 2 to move vertically at a constant speed through the steel wire rope 7, and the lifting plate 2 drives the guide block 9 to move at a constant speed.

[0025] Please see Figure 2 and Figure 4 The self-locking device 5 includes a guide block 9, which is fixedly connected to the lifting plate 2 and slides in contact with the support frame 1. The guide block 9 is fixedly connected to a limit block 11, and the limit block 11 is fixedly connected to a spring 10. The guide block 9 is rotatably connected to a rotating plate 15. When the guide block 9 descends, it drives the actuating rod 13 to move. However, since the support frame 1 is provided with several fixed rods 8, the actuating rod 13 contacts the fixed rods 8 during its descent. The actuating rod 13 is squeezed by the fixed rods 8 and tends to be in a vertical state. Since one side of the actuating rod 13 is in contact with the rotating plate 15, when the actuating rod 13 rotates clockwise, it enters the slot 14. When the actuating rod 13 rotates counterclockwise, it drives the rotating plate 15 to rotate counterclockwise. That is, when the actuating rod 13 is squeezed by the fixed rods 8 and tends to be in a vertical state, the actuating rod 13 drives the rotating plate 15 to tend to be horizontal.

[0026] Please see Figure 2 and Figure 4 The rotating plate 15 is fixedly connected to the spring 10. A slot 14 is provided in the rotating plate 15. A lever 13 is rotatably connected to the rotating plate 15. The lever 13 is inclined, with one side of the lever 13 in contact with the rotating plate 15. When the lever 13 and the rotating plate 15 move to the gap between several fixed rods 8, the rotating plate 15 is reset by the spring 10, i.e., the lever 13 is reset accordingly, thus achieving a cycle. The reset time of the lever 13 and the rotating plate 15 is a fixed time. As the time changes, the time between the reset of the lever 13 and the rotating plate 15 changes. When falling, the lifting plate 2 accelerates downward. The lifting plate 2 drives the actuating rod 13 and the rotating plate 15 to accelerate downward through the guide block 9. Since the reset time of the actuating rod 13 and the rotating plate 15 is a fixed time, and the spacing between the fixed rods 8 is fixed, when the speed of the actuating rod 13 and the rotating plate 15 increases, the rotating plate 15 will not reset completely. That is, the rotating plate 15 tends to be squeezed by the fixed rod 8 at one end, and the other end of the rotating plate 15 is limited by the limiting block 11, thus forming a self-locking mechanism and stopping the lifting plate 2 from falling.

[0027] The working principle of this utility model is as follows: The servo motor 4 controls the rotating shaft 5 to rotate, the rotating shaft 5 drives the rotating drum 6 to rotate, the rotating drum 6 winds up the wire rope 7, and the wire rope 7 drives the lifting plate 2 to rise. Under normal circumstances, the servo motor 4 controls the rotating shaft 5 to rotate at a constant speed, that is, the rotating drum 6 drives the lifting plate 2 to move vertically at a constant speed through the wire rope 7. Then the lifting plate 2 drives the guide block 9 to move at a constant speed. When the guide block 9 descends, the guide block 9 drives the actuating rod 13 to move. However, since there are several fixed rods 8 in the support frame 1, the actuating rod 13 comes into contact with the fixed rods 8 during the descent. The actuating rod 13 is squeezed by the fixed rods 8 and tends to be in a vertical state. Since one side of the actuating rod 13 is in contact with the rotating plate 15, that is, when the actuating rod 13 rotates clockwise, the actuating rod 13 enters the slot 14. When the actuating rod 13 rotates counterclockwise, it will drive the rotating plate 15 to rotate counterclockwise. That is, when the actuating rod 13 is squeezed by the fixed rods 8 and tends to be in a vertical state, the actuating rod 13 drives the rotating plate 15 to move. When the rotating plate 15 moves to the gap between the fixed rods 8, the rotating plate 15 is reset by the action of the spring 10, that is, the rotating plate 15 is reset, thus realizing the cycle. The reset time of the rotating plate 15 and the actuating rod 13 is a fixed time. When a fall occurs, that is, when the lifting plate 2 accelerates down, the lifting plate 2 drives the actuating rod 13 and the rotating plate 15 to accelerate down through the guide block 9. Since the reset time of the rotating plate 15 and the rotating plate 15 is a fixed time, the distance between the fixed rods 8 is fixed. When the speed of the actuating rod 13 and the rotating plate 15 increases, the rotating plate 15 will not reset completely. That is, the rotating plate 15 tends to be horizontal and is squeezed by the fixed rod 8. The other end of the rotating plate 15 is limited by the limiting block 11, thus forming a self-locking and stopping the lifting plate 2 from falling. This device can prevent the noodles from shaking during the lifting process. At the same time, when the lifting plate 2 accelerates down, it self-locks to stop the lifting plate 2 from falling, thus preventing the object from falling.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A hydraulic hoist bearing device, comprising a support frame, characterized in that, A lifting device is fixedly connected to one end of the support frame, and a self-locking device is fixedly connected to the lifting device. The self-locking device is in sliding contact with the support frame. The support frame has a sliding groove, and a fixed rod is fixedly connected to the support frame. The fixed rod cooperates with the self-locking device.

2. The hydraulic hoist bearing device according to claim 1, characterized in that, The support frame is fixedly connected to the servo motor, the servo motor is fixedly connected to a rotating shaft, the rotating shaft is fixedly connected to a rotating cylinder, and the rotating cylinder is sleeved on the cylindrical surface of the rotating shaft.

3. The hydraulic hoist bearing device according to claim 2, characterized in that, The cylindrical surface of the rotating drum is fixedly connected to a steel wire rope, the steel wire rope is fixedly connected to a lifting plate, one end of the lifting plate is fixedly connected to a hook, and both sides of the lifting plate are fixedly connected to a self-locking device.

4. A hydraulic hoist bearing device according to claim 3, characterized in that, The self-locking device includes a guide block, which is fixedly connected to the lifting plate and slides in contact with the support frame. A limit block is fixedly connected to the guide block, and a spring is fixedly connected to the limit block. A rotating plate is rotatably connected to the guide block.

5. A hydraulic hoist bearing device according to claim 4, characterized in that, The rotating plate is fixedly connected to the spring. A slot is provided in the rotating plate. A lever is rotatably connected to the rotating plate. The lever is inclined and one side of the lever is in contact with the rotating plate.