Telescopic arm lubricating structure
By setting a cavity and through hole inside the slider, combined with the push plate, connecting rod mechanism and spring design, the automatic roll-out and replenishment of lubricating oil is achieved, which solves the problem of slider wear and improves the service life and stability of the telescopic arm.
Patent Information
- Application Number
- CN202422547028.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-22
AI Technical Summary
In the prior art, the slider of the telescopic arm of the engineering vehicle is prone to wear after a long period of use, resulting in a decrease in accuracy and stability, and the inadequate wear and tear if the grease is not replenished in time.
A telescopic arm lubrication structure is designed, by providing a cavity and through hole inside the slider, and using the cooperation of the push plate, the connecting rod mechanism and the spring, the automatic roll-out and replenishment of lubricant oil is achieved to ensure the continuous supply of lubricant oil.
Effectively slow down the wear of the slider, improve the service life of the telescopic arm, and ensure timely replenishment of lubricant oil to prevent exhaustion of lubricant oil.
Smart Images
Figure CN223242496U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering vehicles, in particular to a telescopic arm lubrication structure. Background Art
[0002] In order to improve the service life of the telescopic arm of an engineering vehicle, a slider is usually set between the inner cylinder and the outer cylinder of the telescopic arm of an engineering vehicle to avoid direct friction between the inner cylinder and the outer cylinder. After long-term use, the slider will also suffer from greater wear, which will also affect the accuracy and stability of the telescopic arm. The commonly used treatment method is to set a groove on the slider and fill the groove with grease. Although it can slow down the wear of the slider, the grease cannot be replenished. After long-term use, the slider is still prone to greater wear, so it is necessary to replenish the lubricating oil on the surface of the slider. Utility Model Content
[0003] In response to the above-mentioned deficiencies in the related existing technologies, the present application provides a telescopic arm lubrication structure that can replenish lubricating oil to the surface of the slider in a timely manner to reduce its wear and tear, and has strong practicality.
[0004] In order to achieve the above purpose, the utility model adopts the following technologies:
[0005] A telescopic arm lubrication structure comprises an outer cylinder and a sliding block.
[0006] An inner cylinder is provided inside the outer cylinder; the slider is in a circular shape and fits between the outer cylinder and the inner cylinder. A cavity is provided inside the slider, and a plurality of through holes are provided on the inner side of the upper end of the cavity for discharging lubricating oil. A push plate is provided in the cavity which moves along its height direction for pushing the lubricating oil.
[0007] Furthermore, a through groove is provided on the bottom surface of the cavity, a connecting rod is passed through the through groove, and one end of the connecting rod is connected to the push plate.
[0008] Furthermore, the other end of the connecting rod is connected to the movable plate, the movable plate is mounted on the vertical rod, one end of the vertical rod is connected to the slider, a spring is mounted on the vertical rod, both ends of the spring are respectively abutted against the movable plate and the slider, and are always in a compressed state.
[0009] Furthermore, a plurality of convex plates are provided on the circumference of the inner cylinder, and when in use, the convex plates abut against the movable plate.
[0010] Furthermore, the slider and the side wall of the outer cylinder are both provided with filling ports, and the filling ports are aligned one by one.
[0011] Furthermore, a ring strip is provided on the inner wall of the outer cylinder, the bottom of the slider abuts against the top surface of the ring strip, a cover is provided at the end of the outer cylinder for closing the space between the upper end of the outer cylinder and the inner cylinder, and a pressure ring is provided on the bottom surface of the cover for abutting against the top surface of the slider.
[0012] The beneficial effects of the utility model are that the lubricating oil in the slider cavity can be pushed out in time by the movement of the push plate, thereby reducing the friction between the inner tube and the slider and improving the service life; and the lubricating oil can be replenished in time into the cavity through the filling port, thereby preventing the lubricating oil from running out. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.
[0014] Figure 1 This is a schematic cross-sectional view of the overall structure of an embodiment of the present application.
[0015] Figure 2 for Figure 1 A magnified schematic diagram of . DETAILED DESCRIPTION
[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.
[0017] like Figure 1-Figure 2 As shown, this example provides a telescopic arm lubrication structure, including: an outer cylinder 100 and a slider 200.
[0018] An inner cylinder 101 is provided inside the outer cylinder 100; the slider 200 is in a ring shape and fits between the outer cylinder 100 and the inner cylinder 101. A cavity 201 is provided inside the slider 200, and the cavity 201 is filled with lubricating oil. A plurality of through holes 202 are provided on the inner side of the upper end of the cavity 201 for discharging the lubricating oil, thereby providing lubrication for the inner cylinder 101 and the slider 200. A push plate 203 is provided in the cavity 201 and moves along its height direction for pushing the lubricating oil.
[0019] Specifically, the slider 200 and the side wall of the outer cylinder 100 are both provided with filling ports 103 , and the filling ports 103 are aligned one by one, so as to facilitate timely filling of lubricating oil into the cavity 201 .
[0020] Specifically, a through groove 204 is provided on the bottom surface of the cavity 201, and a connecting rod 205 is passed through the through groove 204. One end of the connecting rod 205 is connected to the push plate 203. By applying external force to the connecting rod 205, the push plate 203 is forced to move, thereby pushing the lubricating oil in the cavity 201 out of the through hole 202.
[0021] Specifically, the other end of the connecting rod 205 is connected to the movable plate 206, and the movable plate 206 is sleeved on the vertical rod 207. One end of the vertical rod 207 is connected to the slider 200. A spring 208 is sleeved on the vertical rod 207. The two ends of the spring 208 are respectively abutted against the movable plate 206 and the slider 200, and are always in a compressed state. Under the action of the spring 208, the push plate 203 always has a tendency to move away from the through hole 202, so that when the lubricating oil in the cavity 201 is not needed to be pushed out, the push plate 203 can automatically return to the bottom of the cavity 201, thereby ensuring that when lubricating oil is added to the cavity 201, the lubricating oil will fall between the push plate 203 and the through hole 202, thereby ensuring that the lubricating oil can be smoothly pushed out of the through hole 202 during subsequent actions.
[0022] Specifically, a plurality of convex plates 102 are provided on the circumference of the inner cylinder 101. When the inner cylinder 101 extends from the outer cylinder 100, the convex plates 102 will abut against the movable plate 206, thereby exerting a force on the push plate 203 to move toward the through hole 202. As the inner cylinder 101 continues to move, the lubricating oil in the cavity 201 is pushed out from the through hole 202. At this time, the spring 208 is also further compressed. After that, the inner cylinder 101 is reset, and the push plate 203 is also reset under the action of the spring 208.
[0023] Specifically, a ring strip 104 is provided on the inner wall of the outer cylinder 100, and the bottom of the slider 200 abuts against the top surface of the ring strip 104, thereby providing support for the slider 200. A cover 105 is provided at the end of the outer cylinder 100 for sealing the space between the upper end of the outer cylinder 100 and the inner cylinder 101, and a pressure ring 106 is provided on the bottom surface of the cover 105 for abutting against the top surface of the slider 200, thereby providing a limit for the slider 200 and ensuring that the filling ports 106 of the outer cylinder 100 and the slider 200 are aligned.
[0024] Since the above are only preferred embodiments of the present invention and are not intended to limit the present invention, it is obvious that those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Therefore, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims
1. A telescopic arm lubrication structure, characterized in that: include: An outer cylinder (100) having an inner cylinder (101) disposed therein; The slider (200) is circular in shape and fits between the outer cylinder (100) and the inner cylinder (101). A cavity (201) is provided inside the slider (200). A plurality of through holes (202) are provided on the inner side of the upper end of the cavity (201) for discharging lubricating oil. A push plate (203) is provided in the cavity (201) and moves along its height direction for pushing the lubricating oil.
2. The telescopic arm lubrication structure according to claim 1, characterized in that: A through groove (204) is provided on the bottom surface of the cavity (201), a connecting rod (205) is passed through the through groove (204), and one end of the connecting rod (205) is connected to the push plate (203).
3. The telescopic arm lubrication structure according to claim 2, characterized in that: The other end of the connecting rod (205) is connected to the movable plate (206), the movable plate (206) is sleeved on the vertical rod (207), one end of the vertical rod (207) is connected to the slider (200), and a spring (208) is sleeved on the vertical rod (207), the two ends of the spring (208) respectively abut against the movable plate (206) and the slider (200), and are always in a compressed state.
4. The telescopic arm lubrication structure according to claim 3, characterized in that: A plurality of convex plates (102) are provided on the circumferential side of the inner cylinder (101); when in use, the convex plates (102) abut against the movable plate (206).
5. The telescopic arm lubrication structure according to claim 1, characterized in that: The slider (200) and the side wall of the outer cylinder (100) are both provided with filling ports (103), and the filling ports (103) are aligned one by one.
6. The telescopic arm lubrication structure according to claim 1, characterized in that: The inner wall of the outer cylinder (100) is provided with a ring strip (104), the bottom of the slider (200) abuts against the top surface of the ring strip (104), the end of the outer cylinder (100) is provided with a cover (105) for closing the space between the upper end of the outer cylinder (100) and the inner cylinder (101), and the bottom surface of the cover (105) is provided with a pressure ring (106) for abutting against the top surface of the slider (200).