Local structure of hydraulic rod piece

By designing a support mechanism on the crane hydraulic rod and using the steel wire rope system of the fixed ring, drive gear and reel, the problem that the weight bearing capacity cannot be alleviated during the lifting process of the crane hydraulic rod is solved, and the load bearing capacity sharing and failure rate are reduced.

CN223241773UActive Publication Date: 2025-08-19CCCC THIRD HARBOR ENGINEERING CO LTD
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Patent Information

Application Number
CN202422246673.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-13
Publication Date
2025-08-19
Estimated Expiration
2034-09-13

AI Technical Summary

Technical Problem

The existing crane hydraulic rods cannot effectively alleviate the large load-bearing force during the lifting process, and the lack of synchronous support structure leads to a high failure rate.

Method used

A partial structure of hydraulic rods is designed. By installing a support mechanism on the outer wall of the hydraulic support rod and the mounting plate, a wire rope system composed of a fixed ring, a driving gear, a U-shaped block and a reel, a reel can realize the load-bearing buffer of the movable shaft.

Benefits of technology

During the telescopic movement of the movable shaft, the length of the wire rope is adjusted by reeling, and the tight state is maintained, sharing the load-bearing force of the movable shaft, reducing the failure rate and avoiding additional installation of the support structure.

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Abstract

The utility model belongs to the technical field of hydraulic rod pieces, and discloses a hydraulic rod piece local structure which comprises a hydraulic supporting rod, a movable shaft is arranged at the top end of the hydraulic supporting rod, a mounting disc is arranged at the top end of the movable shaft, the outer wall of the mounting disc and the outer wall of the hydraulic supporting rod are jointly connected with a supporting mechanism, and the supporting mechanism comprises two fixing rings. The hydraulic supporting rod and the installation disc are fixedly installed on the movable shaft, the two fixing rings are fixedly installed on the outer wall of the hydraulic supporting rod and the outer wall of the installation disc in a sleeving mode correspondingly, driving gears are arranged on the sides, close to each other, of the two fixing rings correspondingly, U-shaped blocks are fixedly installed on the driving gears correspondingly, winding shafts are arranged in U-shaped grooves in the U-shaped blocks correspondingly, and the two winding shafts are connected through a steel wire rope. The length of the steel wire rope between the two winding shafts is adjusted through rotation of the winding shafts, the steel wire rope is kept in a tightened state, and the bearing force of the movable shaft is shared and buffered through the steel wire rope.
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Description

Technical Field

[0001] The present application relates to the technical field of hydraulic rods, and more specifically, to a local structure of a hydraulic rod. Background Art

[0002] As a component in the hydraulic cylinder, the surface of the hydraulic rod is often set to a smooth state in order to facilitate operation and reduce the failure rate. It is widely used in various types of engineering equipment. Its function is to output the force and stroke required by the hydraulic system. For example, the hydraulic rod of a crane can also be called a piston rod.

[0003] The hydraulic rods used on some existing cranes often need to bear a large load-bearing force during the lifting process. It is impossible to synchronize the movement of the hydraulic rods with additional supporting structures to alleviate the load-bearing force of the hydraulic rods, which needs to be improved.

[0004] In order to solve the above problems, the present application provides a local structure of a hydraulic rod. Utility Model Content

[0005] The present application provides a hydraulic rod local structure adopting the following technical solution:

[0006] A local structure of a hydraulic rod comprises a hydraulic strut, a movable shaft is provided at the top end of the hydraulic strut, a mounting plate is provided at the top end of the movable shaft, a support mechanism is commonly connected to the outer wall of the mounting plate and the hydraulic strut, the support mechanism comprises two fixing rings, and the two fixing rings are respectively fixedly mounted on the outer wall of the hydraulic strut and the mounting plate, a driving gear is provided on the side where the two fixing rings are close to each other, a U-shaped block is fixedly mounted on the driving gear, a winding shaft is provided in the U-shaped groove on the U-shaped block, and the two winding shafts are connected by a steel wire rope.

[0007] The above technical solution facilitates the sharing and buffering of the load-bearing force of the movable shaft through the steel wire rope.

[0008] Furthermore, a fixed gear ring is movably engaged on the outer wall of the driving gear, and the fixed gear ring is fixedly installed on the fixed ring.

[0009] The above technical solution ensures that the driving gear can perform circular motion on the inner wall of the fixed gear ring.

[0010] Furthermore, a circular sliding groove is provided on each of the fixing rings, and a slider is movably installed in the circular sliding groove, and the top end of the slider is fixedly connected to the driving gear.

[0011] The above technical solution can ensure that the driving gear can move smoothly.

[0012] Furthermore, a T-shaped slide groove is provided on the inner wall of the bottom end of the circular slide groove, a T-shaped anti-slip block is movably installed in the T-shaped slide groove, and the top end of the T-shaped anti-slip block is fixedly connected to the sliding block.

[0013] The above technical solution can prevent the slider from falling out of the circular chute.

[0014] Furthermore, the driving gear is composed of a rotating motor and a gear ring. The rotating motor is provided with an output shaft and a fixed shaft. The output shaft is movably mounted on the outer wall of the fixed shaft, and the output shaft can rotate around the fixed shaft under the drive of the rotating motor. The gear ring is fixedly mounted on the outer wall of the output shaft of the rotating motor, and the U-shaped block is installed on the fixed shaft of the rotating motor.

[0015] The above technical solution ensures that the driving gear can work normally and prevents the U-shaped block from rotating with the driving gear.

[0016] Furthermore, a hidden groove is provided on the inner wall of the U-shaped groove on the U-shaped block, and a rotating motor is provided in the hidden groove, and the output end of the rotating motor is connected to one end of the winding shaft.

[0017] The above technical solution ensures that the reel can rotate to reel the wire rope.

[0018] Furthermore, a rotating connecting ring is installed on the side of the winding shaft that is not connected to the rotating motor, and the side of the rotating connecting ring that is not connected to the winding shaft is fixedly connected to the U-shaped block.

[0019] The above technical solution ensures that the reel can rotate normally.

[0020] In summary, this application has the following beneficial technical effects:

[0021] (1) During the extension and retraction movement of the movable shaft, the length of the wire rope between the two reel shafts is adjusted by rotating the reel shaft and kept in a taut state, so that the bearing force of the movable shaft is shared and buffered by the wire rope.

[0022] (2) By fixing the fixing ring on the outer wall of the hydraulic support rod and the mounting plate, it is possible to avoid the need to additionally install the supporting mechanism on the crane for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the support structure of this application;

[0025] Figure 3 This is a cross-sectional view of the support mechanism of this application.

[0026] Description of the numbers in the figure:

[0027] 1. Hydraulic support rod; 2. Movable shaft; 3. Support mechanism; 4. Fixed ring; 5. Circular slide; 6. T-shaped slide; 7. Slider; 8. T-shaped anti-slip block; 9. Drive gear; 10. Fixed gear ring; 11. U-shaped block; 12. Reel; 13. Wire rope; 14. Mounting plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0031] Example:

[0032] The embodiment of this application discloses a local structure of a hydraulic rod. Figure 1 、 Figure 2 、 Figure 3, including a hydraulic support rod 1, a movable shaft 2 is provided at the top of the hydraulic support rod 1, a mounting plate 14 is provided at the top of the movable shaft 2, a support mechanism 3 is connected to the outer wall of the mounting plate 14 and the hydraulic support rod 1, and the support mechanism 3 includes two fixing rings 4, and the two fixing rings 4 are fixedly mounted on the hydraulic support rod 1 and the outer wall of the mounting plate 14 respectively, and a driving gear 9 is provided on the side close to each other of the two fixing rings 4, and a U-shaped block 11 is fixedly installed on the driving gear 9, and a reel 12 is provided in the U-shaped groove of the U-shaped block 11. The two reel 12 are connected by a steel wire rope 13, and the steel wire rope 13 pulls the two reel 12, which can provide a load-bearing force sharing buffer during the working process of the movable shaft 2.

[0033] See also Figure 1 、 Figure 2 、 Figure 3 A fixed gear ring 10 is movably engaged on the outer wall of the driving gear 9, and the fixed gear ring 10 is fixedly mounted on the fixed ring 4. The driving gear 9 is composed of a rotating motor and a gear ring. The rotating motor adopts a motor with a self-locking function in the prior art. The rotating motor is provided with an output shaft and a fixed shaft. The output shaft is movably sleeved on the outer wall of the fixed shaft, and the output shaft can rotate around the fixed shaft under the drive of the rotating motor. The gear ring is fixedly sleeved on the outer wall of the output shaft of the rotating motor, and the U-shaped block 11 is mounted on the fixed shaft of the rotating motor. A number of mutually meshing teeth are provided on the inner wall of the fixed gear ring 10 and the outer wall of the gear ring to ensure that the driving gear 9 can make a circular motion on the inner wall of the fixed gear ring 10, which is convenient for adjusting and fixing the position of the wire rope 13 according to the use environment and lifting method.

[0034] See also Figure 1 、 Figure 2 、 Figure 3 , a circular slide groove 5 is provided on the fixing ring 4, and a slider 7 is movably installed in the circular slide groove 5, and the top of the slider 7 is fixedly connected to the driving gear 9, and a T-shaped slide groove 6 is provided on the inner wall of the bottom end of the circular slide groove 5. The T-shaped slide groove 6 is a T-shaped circular movable slide groove, and a T-shaped anti-falling block 8 is movably installed in the T-shaped slide groove 6, and the top of the T-shaped anti-falling block 8 is fixedly connected to the slider 7. The driving gear 9 can be prevented from falling off by the T-shaped anti-falling block 8 and the slider 7, and a groove is provided on the T-shaped anti-falling block 8, and a hydraulic push rod is provided in the groove. The hydraulic push rod extends out of the groove on the T-shaped anti-falling block 8 and contacts the inner wall of the T-shaped slide groove 6, which can limit the T-shaped anti-falling block 8 and the slider 7 from continuing to move, thereby reinforcing the position of the driving gear 9.

[0035] See also Figure 1 、 Figure 2 、 Figure 3A hidden groove is provided on the inner wall of the U-shaped groove on the U-shaped block 11, and a rotating motor is provided in the hidden groove. The rotating motor adopts a motor with a self-locking function in the existing technology. The output end of the rotating motor is connected to one end of the winding shaft 12. A rotating connecting ring is installed on the side of the winding shaft 12 that is not connected to the rotating motor, and the side of the rotating connecting ring that is not connected to the winding shaft 12 is fixedly connected to the U-shaped block 11, so that the wire rope 13 can be rotated and tightened by the winding shaft 12.

[0036] The implementation principle of this embodiment is: when in use, first start the electrical appliances on the hydraulic rod through an external power supply. When controlling the movable shaft 2 for lifting, the driving gear 9 can be controlled to move to the desired position on the inner wall of the fixed gear ring 10 according to the lifting direction. During the telescopic movement of the movable shaft 2, the length of the wire rope 13 between the two winding shafts 12 is adjusted by rotating the winding shaft 12 and kept in a taut state, and the bearing force of the movable shaft 2 is shared and buffered by the wire rope 13.

[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hydraulic rod local structure, comprising a hydraulic support rod (1), characterized in that: The top of the hydraulic support rod (1) is provided with a movable shaft (2), and the top of the movable shaft (2) is provided with a mounting plate (14). The mounting plate (14) and the outer wall of the hydraulic support rod (1) are commonly connected with a support mechanism (3). The support mechanism (3) includes two fixing rings (4), and the two fixing rings (4) are fixedly sleeved on the outer walls of the hydraulic support rod (1) and the mounting plate (14), respectively. A driving gear (9) is provided on the side where the two fixing rings (4) are close to each other. A U-shaped block (11) is fixedly installed on the driving gear (9). A reeling shaft (12) is provided in the U-shaped groove on the U-shaped block (11), and the two reeling shafts (12) are connected by a steel wire rope (13).

2. A hydraulic rod partial structure according to claim 1, characterized in that: A fixed gear ring (10) is movably engaged on the outer wall of the driving gear (9), and the fixed gear ring (10) is fixedly mounted on the fixed ring (4).

3. The hydraulic rod partial structure according to claim 1, characterized in that: A circular slide groove (5) is provided on each of the fixing rings (4), and a slider (7) is movably installed in the circular slide groove (5), and the top end of the slider (7) is fixedly connected to the driving gear (9).

4. A hydraulic rod partial structure according to claim 3, characterized in that: A T-shaped slide groove (6) is provided on the inner wall of the bottom end of the circular slide groove (5), a T-shaped anti-slip block (8) is movably installed in the T-shaped slide groove (6), and the top end of the T-shaped anti-slip block (8) is fixedly connected to the slider (7).

5. The hydraulic rod partial structure according to claim 1, characterized in that: The driving gear (9) is composed of a rotating motor and a gear ring. The rotating motor is provided with an output shaft and a fixed shaft. The output shaft is movably sleeved on the outer wall of the fixed shaft, and the output shaft can rotate around the fixed shaft under the drive of the rotating motor. The gear ring is fixedly sleeved on the outer wall of the output shaft of the rotating motor. The U-shaped block (11) is installed on the fixed shaft of the rotating motor.

6. The hydraulic rod partial structure according to claim 1, characterized in that: A hidden groove is provided on the inner wall of the U-shaped groove on the U-shaped block (11), and a rotating motor is provided in the hidden groove. The output end of the rotating motor is connected to one end of the winding shaft (12).

7. The hydraulic rod partial structure according to claim 1, characterized in that: A rotating connecting ring is installed on the side of the reeling shaft (12) not connected to the rotating motor, and the side of the rotating connecting ring not connected to the reeling shaft (12) is fixedly connected to the U-shaped block (11).