Cylinder bottom small floating angle adjusting structure, supporting hydraulic oil cylinder and shield tunneling machine
By installing transition blocks and anti-wear pads in the cylinder base connection ring of the hydraulic cylinder of the shield machine, a small floating angle adjustment of the cylinder base is achieved, which solves the problem that the cylinder base cannot be adjusted in the prior art, and improves the adaptability of the shield machine in different soil environments.
Patent Information
- Application Number
- CN202420663844.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The cylinder base of the shield machine hydraulic cylinder does not have the function of small floating angle adjustment, which makes it difficult to achieve fine adjustment in different soil environments.
A small floating angle adjustment structure for cylinder bottom is designed, and the angle adjustment of cylinder bottom is achieved by installing a transition block in the connecting ring on the lower surface of the cylinder bottom and installing an anti-wear pad on the outer surface of the connecting ring.
This structure controls the deflection of the connection ring on the outer surface of the transition block, and realizes a small floating angle adjustment of the cylinder bottom, reducing losses during the deflection process, and maintaining lubrication between the connection ring and the transition block.
Smart Images
Figure CN222558915U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a cylinder bottom small floating angle adjustment structure. Background Art
[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the motion is smooth. Therefore, it is widely used in the hydraulic systems of various machines.
[0003] During the operation of the shield machine, the equipment needs to be stopped and the blade and cutter head need to be slightly adjusted according to the different soil conditions in the working environment. Since the hydraulic cylinder of the shield machine has a high pressure, the bottom of the cylinder does not have the function of small floating angle adjustment. In view of this, we propose a small floating angle adjustment structure for the bottom of the cylinder. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a cylinder bottom small floating angle adjustment structure to solve the technical problem that the cylinder bottom of the current shield machine hydraulic cylinder does not have the function of small floating angle adjustment.
[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a small floating angle adjustment structure of the cylinder bottom is designed, including a cylinder body, the lower end of the cylinder body is fixedly connected with the cylinder bottom, one side of the cylinder bottom is fixedly connected with a connecting ring, the inner surface of the connecting ring is movably connected with a transition block, the outer surface of the connecting ring is fixedly connected with a fixing plate, the front and rear surfaces of the connecting ring are fixedly connected with fixing blocks, the connecting ring is formed by two semicircular rings connected together, and a gasket is provided between the two parts, and the two ends of the transition block are respectively extended to the outer sides of the two ends of the connecting ring and are respectively fixedly connected with anti-wear pads; the utility model divides the connecting ring connected to the lower surface of the cylinder bottom into two parts that can be connected and fixedly sealed, and installs a transition block inside the connecting ring, and when the cylinder body drives the cylinder bottom to deflect after connection through the transition block that partially extends out of the outer side of the connecting ring, the cylinder bottom is controlled to drive the connecting ring to deflect on the outer surface of the transition block to adjust a certain angle, and at the same time, the anti-wear pad reduces the extrusion loss of the connecting rod inside the transition block on the edge of the connecting ring during the deflection process, so as to facilitate the small floating angle adjustment of the cylinder bottom of the hydraulic oil cylinder of the shield machine during use.
[0006] Preferably, an oil hole is opened inside the connecting ring, an oil seal groove is opened on the edge of the inner wall of the connecting ring, and an oil seal is arranged inside the oil seal groove; grease can be stored in the oil hole opened inside the transition block, and lubrication between the connecting ring and the transition block is maintained through friction between the outer wall of the transition block and the inner wall of the connecting ring during use.
[0007] Preferably, the transition block is a sphere with a through hole, and the interior of the connecting ring is provided with an arc groove that matches the transition block, and the edge diameter of the arc groove is larger than the diameter of the through hole inside the transition block; the arc groove has a larger diameter, so that the two end portions of the transition block are located on the outside of the connecting ring, providing space for the connected ring to be deflected at a controlled angle.
[0008] Preferably, the interior of the oil hole is filled with oil storage cotton, and one side of the oil hole is connected to the arc groove inside the connecting ring; the oil storage cotton is used to store excess grease to maintain lubrication between the connecting ring and the transition block during the deflection of the connecting ring.
[0009] Preferably, the outer surface of the gasket is penetrated with holes corresponding to the fixing plate, the fixing block and the oil hole respectively, so as to facilitate maintaining the stability of the gasket installation.
[0010] The utility model also provides a supporting hydraulic oil cylinder, on which the supporting hydraulic oil cylinder is equipped with the above-mentioned cylinder bottom small floating angle adjustment structure.
[0011] The utility model also provides a shield machine equipped with the supporting hydraulic cylinder.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model divides a connecting ring connected to the lower surface of the cylinder bottom into two parts that can be connected and fixedly sealed, and installs a transition block inside the connecting ring. When the cylinder body drives the cylinder bottom to deflect an angle after connection through the transition block that partially extends out of the outer side of the connecting ring, the cylinder bottom is controlled to drive the connecting ring to deflect on the outer surface of the transition block to adjust a certain angle. At the same time, the anti-wear pad reduces the extrusion loss of the connecting rod inside the transition block to the edge of the connecting ring during the deflection process, which is convenient for adjusting the small floating angle of the bottom of the hydraulic cylinder of the shield machine during use.
[0014] The utility model can store grease by opening the oil hole inside the transition block, and the lubrication between the connecting ring and the transition block can be maintained through the friction between the outer wall of the transition block and the inner wall of the connecting ring during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the connecting ring structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the transition block structure of the utility model;
[0018] In the figure: 1. cylinder body; 2. cylinder bottom; 3. connecting ring; 301. fixing plate; 302. fixing block; 303. gasket; 4. transition block; 401. anti-wear pad; 5. oil hole; 501. oil seal; 502. oil seal groove. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0020] See also Figures 1 to 3 , this embodiment designs a cylinder bottom small floating angle adjustment structure, including a cylinder body 1, the lower end of the cylinder body 1 is fixedly connected to the cylinder bottom 2, one side of the cylinder bottom 2 is fixedly connected to a connecting ring 3, the inner surface of the connecting ring 3 is movably connected to a transition block 4, the outer surface of the connecting ring 3 is fixedly connected to a fixing plate 301, the front and rear surfaces of the connecting ring 3 are fixedly connected to fixing blocks 302, the connecting ring 3 is formed by two semicircular rings connected together, and a gasket 303 is provided between the two parts, and the two ends of the transition block 4 extend to the outside of the two ends of the connecting ring 3 and are fixedly connected to anti-wear pads 401 respectively; The utility model divides a connecting ring 3 connected to the lower surface of the cylinder bottom 2 into two parts that can be connected and fixedly sealed, and installs a transition block 4 inside the connecting ring 3. When the cylinder body 1 drives the cylinder bottom 2 to deflect at an angle through the transition block 4 that partially extends out of the outside of the connecting ring 3, the cylinder bottom 2 is controlled to drive the connecting ring 3 to deflect on the outer surface of the transition block 4 to adjust a certain angle. At the same time, the anti-wear pad 401 reduces the extrusion loss of the connecting rod inside the transition block 4 on the edge of the connecting ring 3 during the deflection process, which is convenient for adjusting the small floating angle of the bottom of the hydraulic cylinder of the shield machine during use.
[0021] Specifically, an oil hole 5 is opened inside the connecting ring 3, an oil seal groove 502 is opened on the edge of the inner wall of the connecting ring 3, an oil seal 501 is arranged inside the oil seal groove 502, the inside of the oil hole 5 is filled with oil storage cotton, and one side of the oil hole 5 is connected with the arc groove inside the connecting ring 3; grease is stored by the oil storage cotton opened in the oil hole 5 inside the transition block 4, and lubrication between the connecting ring 3 and the transition block 4 is maintained by the friction between the outer wall of the transition block 4 and the inner wall of the connecting ring 3 during use.
[0022] Furthermore, the transition block 4 is a sphere with a through hole, and the interior of the connecting ring 3 is provided with an arc groove that matches the transition block 4, and the edge diameter of the arc groove is larger than the diameter of the through hole inside the transition block 4; the arc groove has a large diameter, so that the two end portions of the transition block 4 are located on the outside of the connecting ring 3, providing space for the connected ring 3 to be deflected at a controlled angle.
[0023] It is worth noting that holes corresponding to the fixing plate 301 , the fixing block 302 and the oil hole 5 are formed through the outer surface of the gasket 303 , so as to maintain the stability of the installation of the gasket 303 .
[0024] Working principle: before use, fill the inside of the oil hole 5 with grease, then insert the oil seal 501 into the inside of the oil seal groove 502 to prevent grease from leaking out during use, then place the transition block 4 inside the connecting ring 3 and fix the two parts of the connecting ring 3 through the fixing plate 301, the fixing block 302 and the bolts, and fix the gasket 303 at the same time. When in use, the cylinder body 1 drives the connecting ring 3 to deflect on the outside of the transition block 4 through the cylinder bottom 2. At this time, the through hole inside the transition block 4 deviates from the axis of the arc groove inside the connecting ring 3, and the edge wear of the connecting ring 3 is reduced under the action of the anti-wear pad 401, so as to facilitate the small floating angle adjustment of the bottom of the hydraulic cylinder of the shield machine during use.
[0025] Another embodiment of the utility model provides a supporting hydraulic oil cylinder equipped with the above-mentioned cylinder bottom small floating angle adjustment structure.
[0026] Another embodiment of the utility model provides a shield machine equipped with the above-mentioned supporting hydraulic cylinder.
[0027] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A cylinder bottom small floating angle adjustment structure, comprising a cylinder body (1), characterized in that: The lower end of the cylinder body (1) is fixedly connected to a cylinder bottom (2), one side of the cylinder bottom (2) is fixedly connected to a connecting ring (3), and the inner surface of the connecting ring (3) is movably connected to a transition block (4); The outer surface of the connecting ring (3) is fixedly connected to a fixing plate (301), the front and rear surfaces of the connecting ring (3) are fixedly connected to fixing blocks (302), the connecting ring (3) is formed by two semicircular rings connected together, and a gasket (303) is provided between the two parts, and the two ends of the transition block (4) respectively extend to the outside of the two ends of the connecting ring (3) and are respectively fixedly connected to anti-wear pads (401).
2. The cylinder bottom small floating angle adjustment structure according to claim 1, characterized in that: An oil hole (5) is provided inside the connecting ring (3), an oil seal groove (502) is provided on the edge of the inner wall of the connecting ring (3), and an oil seal (501) is provided inside the oil seal groove (502).
3. The cylinder bottom small floating angle adjustment structure according to claim 1, characterized in that: The transition block (4) is a sphere with a through hole, and the connection ring (3) is provided with an arc groove matching the transition block (4), and the edge diameter of the arc groove is larger than the diameter of the through hole inside the transition block (4).
4. The cylinder bottom small floating angle adjustment structure according to claim 2, characterized in that: The interior of the oil hole (5) is filled with oil storage cotton, and one side of the oil hole (5) is connected to the arc groove inside the connecting ring (3).
5. The cylinder bottom small floating angle adjustment structure according to claim 2, characterized in that: The outer surface of the gasket (303) is penetrated by holes corresponding to the fixing plate (301), the fixing block (302) and the oil hole (5).
6. A supporting hydraulic cylinder, characterized in that: The supporting hydraulic cylinder is equipped with a cylinder bottom small floating angle adjustment structure as described in any one of claims 1-5.
7. A shield machine, characterized in that: The shield machine is equipped with the supporting hydraulic cylinder as described in claim 6.