A high wear resistant guide structure for a sealed hydraulic cylinder

Abstract

The utility model relates to hydraulic cylinder technical field, concretely for a kind of high wear-resistant guide structure for sealing type hydraulic cylinder, including hydraulic cylinder body, hydraulic rod, hydraulic piston and locking assembly, the hydraulic rod is arranged in the inner wall of hydraulic cylinder body, the hydraulic piston is arranged in the inner wall of hydraulic cylinder body, the locking assembly is arranged in the surface of hydraulic piston, the locking assembly includes guide hole, the surface of the hydraulic piston is equipped with guide hole, the inner wall of the guide hole is fixedly connected with pressurizing ring. The utility model, by setting locking assembly, it is convenient to fix guide rod, avoid the hydraulic cylinder in the existing hydraulic cylinder use process, hydraulic rod in hydraulic cylinder in long time linear reciprocating motion process, often appear because of uneven force of hydraulic rod, drive and its fixed connection piston appear in hydraulic cylinder and deviate, lead to resistance increase, make the surface of piston and the wear of hydraulic cylinder interior be serious, affect the service life of hydraulic cylinder, effectively improve the stability of equipment for this.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and in particular to a highly wear-resistant guide structure for a sealed hydraulic cylinder. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy. It is mainly used to achieve linear reciprocating motion or oscillating motion. The hydraulic cylinder is the core actuator in the hydraulic transmission system. It drives the load by converting hydraulic energy into mechanical energy. A sealed hydraulic cylinder refers to a hydraulic cylinder with good sealing performance. Its core function is to ensure that the hydraulic oil does not leak. It is mainly composed of a sealing device, a buffer device, and a venting device.

[0003] Existing technologies, such as CN207093504U, disclose a high-wear-resistant guide structure for hydraulic cylinders, comprising a guide sleeve, a piston rod, and a cylinder head. The piston rod is disposed within the guide sleeve, and the cylinder head is fixed outside the guide sleeve. The piston rod reciprocates along the inner hole of the guide sleeve. A sealing component is provided at one end of the inner hole of the guide sleeve, and a wear-resistant copper sleeve is welded to the other end. A spiral oil guide groove is formed on the inner wall of the wear-resistant copper sleeve. This high-wear-resistant guide structure for hydraulic cylinders, with a wear-resistant copper sleeve welded into the inner hole of the guide sleeve and a spiral oil guide groove formed on the inner wall of the wear-resistant copper sleeve, not only has a simple structure and is easy to implement, but also features a low coefficient of friction, good wear resistance, good sealing performance, and long service life.

[0004] To address the wear prevention issue of existing hydraulic cylinders, it is necessary to improve the existing hydraulic cylinders. During long-term linear reciprocating motion, the hydraulic rod inside the cylinder often experiences uneven force, causing the piston, which is fixedly connected to it, to shift within the cylinder. This increases resistance, leading to severe wear on the piston surface and the inside of the cylinder, thus affecting the service life of the hydraulic cylinder. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing hydraulic cylinders, where uneven force on the hydraulic rod during long-term linear reciprocating motion often causes the piston, which is fixedly connected to it, to shift within the hydraulic cylinder, resulting in increased resistance, severe wear on the piston surface and the inside of the hydraulic cylinder, and reduced service life. Therefore, this invention proposes a highly wear-resistant guide structure for sealed hydraulic cylinders.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high wear-resistant guide structure for a sealed hydraulic cylinder, comprising a hydraulic cylinder body, a hydraulic rod, a hydraulic piston, and a locking assembly. The hydraulic rod is disposed on the inner wall of the hydraulic cylinder body, the hydraulic piston is disposed on the inner wall of the hydraulic cylinder body, and the locking assembly is disposed on the surface of the hydraulic piston. The locking assembly includes a guide hole. The surface of the hydraulic piston has a guide hole. A pressure ring is fixedly connected to the inner wall of the guide hole. The pressure ring is disposed on the inner side of a threaded column. The guide rod is sleeved and connected to the inner wall of the pressure ring. The threaded column is sleeved and connected to the surface of the guide rod. The pressure block is sleeved and connected to the surface of the guide rod.

[0007] Furthermore, the number of guide holes is two sets and they are symmetrically arranged, and the surface of the pressure ring is provided with a pressure sealing ring groove.

[0008] Furthermore, the inner wall of the guide hole is provided with a threaded groove, the pressure ring is disposed inside the threaded groove, and the inner wall of the guide hole is provided with a threaded post, which is fixedly connected to the surface of the threaded groove.

[0009] Furthermore, a pressure block is fixedly connected to the surface of the threaded column, and a guide rod is sleeved and connected to the inner wall of the guide hole.

[0010] Furthermore, a buffer assembly is provided on the surface of the hydraulic rod, the buffer assembly including a connecting block, the connecting block being fixedly connected to the surface of the hydraulic rod, and the connecting block being sleeved and connected to the surface of the guide rod.

[0011] Furthermore, a stabilizing spring is fixedly connected to the inner wall of the hydraulic cylinder. There are two sets of stabilizing springs arranged symmetrically, and the stabilizing springs are fixedly connected to the surface of the guide rod.

[0012] Furthermore, a stop block is fixedly connected to the end of the stabilizing spring away from the hydraulic cylinder. A through hole is formed on the surface of the stop block. The hydraulic rod is sleeved and connected to the inner wall of the through hole. The stop block is slidably connected to the surface of the guide rod.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, by setting a locking component, the use of the hydraulic rod is more convenient when fixing the guide rod. The guide rod is inserted into the inner wall of the guide hole. Rotating the pressure block causes the threaded column to rotate to the inner wall of the threaded groove, causing the pressure ring to gradually contract and stably clamp and fix the guide rod. The hydraulic rod then moves stably along the surface of the guide rod, avoiding friction between the hydraulic rod and the inner wall of the hydraulic cylinder. The locking component facilitates the fixing of the guide rod, preventing the uneven force on the hydraulic rod during prolonged linear reciprocating motion in existing hydraulic cylinders. This uneven force causes the piston, which is fixedly connected to the hydraulic cylinder, to shift within the cylinder, increasing resistance and causing severe wear on the piston surface and the inside of the hydraulic cylinder, thus affecting the service life of the hydraulic cylinder. Therefore, this effectively improves the stability of the equipment.

[0014] 2. In this utility model, by setting a buffer component, the use of the impact block is more convenient when guiding and damping the hydraulic rod. When the hydraulic piston moves, the hydraulic rod extends and retracts, causing the surface of the hydraulic rod and connecting block to move stably. When the hydraulic rod moves the connecting block, the connecting block collides with the impact block, causing the stabilizing spring to be compressed. Then, the rebound force of the stabilizing spring can push the impact block to reset, so that the impact block provides a buffering force to the connecting block. By setting a buffer component, it is convenient to guide and dampen the hydraulic rod, avoiding the connection block colliding with the inner wall of the hydraulic cylinder when the hydraulic rod moves along the surface of the guide rod during the extension and retraction movement. This would cause damage after long-term use and is quite inconvenient. Therefore, the stability of the equipment is effectively improved. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a highly wear-resistant guide structure for a sealed hydraulic cylinder; Figure 2 This utility model provides a schematic diagram of the main structure of a locking component in a high wear-resistant guide structure for a sealed hydraulic cylinder; Figure 3 This invention proposes a highly wear-resistant guide structure for use in sealed hydraulic cylinders. Figure 2 Schematic diagram at point A; Figure 4 This utility model provides a schematic diagram of the main structure of a buffer assembly in a high wear-resistant guide structure for a sealed hydraulic cylinder; Figure 5 This invention proposes a highly wear-resistant guide structure for use in sealed hydraulic cylinders. Figure 4 Schematic diagram at point B.

[0016] Legend: 1. Hydraulic cylinder body; 2. Hydraulic rod; 3. Hydraulic piston; 4. Locking assembly; 41. Guide hole; 42. Pressure ring; 43. Pressure sealing ring groove; 44. Threaded groove; 45. Threaded column; 46. Pressure block; 47. Guide rod; 5. Buffer assembly; 51. Connecting block; 52. Stabilizing spring; 53. Impact block; 54. Through hole. Detailed Implementation

[0017] Please see Figures 1-5 This utility model provides a technical solution: a high wear-resistant guide structure for a sealed hydraulic cylinder, including a hydraulic cylinder body 1, a hydraulic rod 2, a hydraulic piston 3 and a locking assembly 4. The hydraulic rod 2 is disposed on the inner wall of the hydraulic cylinder body 1, the hydraulic piston 3 is disposed on the inner wall of the hydraulic cylinder body 1, and the locking assembly 4 is disposed on the surface of the hydraulic piston 3.

[0018] The following section will explain the specific settings and functions of locking component 4 and buffer component 5.

[0019] In this embodiment: the locking assembly 4 includes a guide hole 41, the surface of the hydraulic piston 3 is provided with a guide hole 41, and a pressure ring 42 is fixedly connected to the inner wall of the guide hole 41.

[0020] Specifically, there are two sets of guide holes 41 arranged symmetrically, and the surface of the pressure ring 42 is provided with a pressure sealing ring groove 43.

[0021] Specifically, the inner wall of the guide hole 41 is provided with a threaded groove 44, the pressure ring 42 is provided inside the threaded groove 44, and the inner wall of the guide hole 41 is provided with a threaded post 45, which is fixedly connected to the surface of the threaded groove 44.

[0022] Specifically, a pressure block 46 is fixedly connected to the surface of the threaded column 45, and a guide rod 47 is sleeved and connected to the inner wall of the guide hole 41.

[0023] The effects achieved by the above components are as follows: By setting the guide hole 41, the hydraulic rod 2 can slide stably along the surface of the guide rod 47 during hydraulic extension and retraction, avoiding the uneven force on the hydraulic rod 2 during long-term linear reciprocating motion in the hydraulic cylinder, which often causes the piston fixedly connected to it to deviate in the hydraulic cylinder, resulting in increased resistance and severe wear on the surface of the piston and the inside of the hydraulic cylinder. By setting the pressure sealing ring groove 43, the threaded column 45 can gradually move towards the inner wall of the guide hole 41 when it is transmitting with the threaded groove 44, so that the threaded column 45 squeezes the pressure ring 42, causing it to deform, and the pressure ring 42 clamps and fixes the guide rod 47.

[0024] Specifically, a buffer assembly 5 is provided on the surface of the hydraulic rod 2. The buffer assembly 5 includes a connecting block 51, which is fixedly connected to the surface of the hydraulic rod 2 and sleeved to the surface of the guide rod 47.

[0025] Specifically, a stabilizing spring 52 is fixedly connected to the inner wall of the hydraulic cylinder 1. There are two sets of stabilizing springs 52 arranged symmetrically, and the stabilizing springs 52 are fixedly connected to the surface of the guide rod 47.

[0026] Specifically, a stop block 53 is fixedly connected to the end of the stabilizing spring 52 away from the hydraulic cylinder 1. A through hole 54 is opened on the surface of the stop block 53. The hydraulic rod 2 is sleeved and connected to the inner wall of the through hole 54. The stop block 53 is slidably connected to the surface of the guide rod 47.

[0027] The effects achieved by the above components are as follows: by setting the connecting block 51, the hydraulic rod 2 can be driven by the connecting block 51 to slide stably along the surface of the guide rod 47 when the hydraulic rod 2 is in hydraulic extension and retraction. By setting the stabilizing spring 52, when the hydraulic rod 2 is in motion and the connecting block 51 hits the impact block 53, the rebound force of the stabilizing spring 52 can provide a buffering force to the connecting block 51 through the impact block 53.

[0028] Working Principle: By setting the locking component 4, the use of the hydraulic rod 2 is more convenient when fixing the guide rod 47. The guide rod 47 is inserted into the inner wall of the guide hole 41. Rotating the pressure block 46 causes the threaded column 45 to rotate to the inner wall of the threaded groove 44, causing the pressure ring 42 to gradually contract and stably clamp and fix the guide rod 47. The hydraulic rod 2 then moves stably along the surface of the guide rod 47, avoiding friction between the hydraulic rod 2 and the inner wall of the hydraulic cylinder 1. The locking component 4 facilitates the fixing of the guide rod 47, preventing uneven force on the hydraulic rod 2 during long-term linear reciprocating motion, which can cause the piston fixedly connected to it to shift within the hydraulic cylinder, increasing resistance and causing severe wear on the piston surface and the inside of the hydraulic cylinder, affecting the service life of the hydraulic cylinder. This effectively improves the stability of the equipment.

[0029] Furthermore, by setting up the buffer component 5, the use of the impact block 53 is more convenient when guiding and damping the hydraulic rod 2. When the hydraulic piston 3 moves, the hydraulic rod 2 extends and retracts, causing the surface of the hydraulic rod 2 to move stably with the connecting block 51. When the hydraulic rod 2 moves the connecting block 51, the connecting block 51 collides with the impact block 53, causing the stabilizing spring 52 to be compressed. Then, the rebound force of the stabilizing spring 52 can push the impact block 53 to reset, so that the impact block 53 provides a buffering force to the connecting block 51. By setting up the buffer component 5, it is convenient to guide and dampen the hydraulic rod 2, and avoid the connecting block 51 colliding with the inner wall of the hydraulic cylinder 1 when the hydraulic rod 2 moves along the surface of the guide rod 47 during the extension and retraction movement. This would cause damage after long-term use and is quite inconvenient. Therefore, the stability of the equipment is effectively improved.

Claims

1. A high wear-resistant guide structure for a sealed hydraulic cylinder, comprising a hydraulic cylinder body (1), a hydraulic rod (2), a hydraulic piston (3), and a locking assembly (4), characterized in that: The hydraulic rod (2) is disposed on the inner wall of the hydraulic cylinder (1), the hydraulic piston (3) is disposed on the inner wall of the hydraulic cylinder (1), the locking assembly (4) is disposed on the surface of the hydraulic piston (3), the locking assembly (4) includes a guide hole (41), the surface of the hydraulic piston (3) is provided with a guide hole (41), and a pressure ring (42) is fixedly connected to the inner wall of the guide hole (41).

2. The high wear-resistant guide structure for a sealed hydraulic cylinder according to claim 1, characterized in that: The number of guide holes (41) is two sets and they are symmetrically arranged. The surface of the pressure ring (42) is provided with a pressure sealing ring groove (43).

3. The high wear-resistant guide structure for a sealed hydraulic cylinder according to claim 2, characterized in that: The inner wall of the guide hole (41) is provided with a threaded groove (44), the pressure ring (42) is provided on the inner side of the threaded groove (44), and the inner wall of the guide hole (41) is provided with a threaded post (45), which is fixedly connected to the surface of the threaded groove (44).

4. A high wear-resistant guide structure for a sealed hydraulic cylinder according to claim 3, characterized in that: A pressure block (46) is fixedly connected to the surface of the threaded column (45), and a guide rod (47) is sleeved and connected to the inner wall of the guide hole (41).

5. A high wear-resistant guide structure for a sealed hydraulic cylinder according to claim 1, characterized in that: The surface of the hydraulic rod (2) is provided with a buffer assembly (5), the buffer assembly (5) includes a connecting block (51), the connecting block (51) is fixedly connected to the surface of the hydraulic rod (2), and the connecting block (51) is sleeved and connected to the surface of the guide rod (47).

6. A high wear-resistant guide structure for a sealed hydraulic cylinder according to claim 3, characterized in that: The inner wall of the hydraulic cylinder (1) is fixedly connected with a stabilizing spring (52). There are two sets of stabilizing springs (52) arranged symmetrically. The stabilizing springs (52) are fixedly connected to the surface of the guide rod (47).

7. A high wear-resistant guide structure for a sealed hydraulic cylinder according to claim 6, characterized in that: The end of the stabilizing spring (52) away from the hydraulic cylinder (1) is fixedly connected to a striking block (53). A through hole (54) is opened on the surface of the striking block (53). The hydraulic rod (2) is sleeved and connected to the inner wall of the through hole (54). The striking block (53) is slidably connected to the surface of the guide rod (47).

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