Piston rod with lubricating structure

Abstract

The utility model discloses a piston rod with a lubricating structure, which comprises a sliding rod, a piston threaded connector is fixedly arranged at one end of the sliding rod, a connecting lantern ring is fixedly arranged at the other end of the sliding rod, a fixing ring integrally connected with the sliding rod is fixedly arranged on the outer wall of the other end of the sliding rod, an annular oil cavity is arranged in the fixing ring, and a lubricating oil cavity is arranged in the annular oil cavity. An oil seepage assembly is arranged between the annular oil cavity and the sliding rod. The fixing ring is arranged at the top of the sliding rod, the annular oil cavity is formed in the fixing ring, and the oil seepage assembly is arranged between the annular oil cavity and the sliding rod, so that when the sliding rod slides upwards to be separated from the piston sleeve, the oil seepage assembly seeps oil downwards to lubricate the surface of the sliding rod; the abrasion between the sliding rod and the piston sleeve in the stretching and retracting process is effectively reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to a piston rod with a lubrication structure and belongs to the technical field of piston rods. Background Art

[0002] Currently, during the movement of an oil cylinder or a gas cylinder, a piston rod is an important connecting component used to perform piston movement.

[0003] During the use of traditional piston rods, in order to reduce the friction between the piston rod and the piston sleeve, it is necessary to manually apply lubricating oil regularly to lubricate the piston rod. This method of lubricating the piston rod is cumbersome, and manual application is prone to uneven application, which affects the lubrication effect of the piston rod. For this reason, we designed a piston rod with a lubrication structure to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a piston rod with a lubrication structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a sliding rod, a piston threaded connector is fixedly provided at one end of the sliding rod, a connecting ring is fixedly provided at the other end of the sliding rod, a fixing ring is fixedly provided on the outer wall of the other end of the sliding rod, an annular oil chamber is opened inside the fixing ring, and an oil seepage component is arranged between the annular oil chamber and the sliding rod.

[0006] In the above-mentioned piston rod with a lubrication structure, the oil seepage component includes a truncated cone plug, a return spring and a connecting rod. A plurality of truncated cone grooves are equidistantly provided at the bottom of the fixing ring. An oil seepage hole connected to the annular oil chamber is provided on the top groove wall of the truncated cone groove. A truncated cone plug is nested inside the truncated cone groove. A connecting rod is fixed at the center of the bottom end of the truncated cone plug. A return spring is nested and connected on the surface of the connecting rod. The top end of the return spring is fixedly connected to the bottom end of the truncated cone plug, and the bottom end of the return spring is fixedly connected to the bottom of the truncated cone groove.

[0007] In the above-mentioned piston rod with a lubrication structure, an L-shaped flow channel is provided at the bottom of the side surface of the truncated cone-shaped groove, and the oil outlet end of the L-shaped flow channel is aligned with the outer wall of the sliding rod.

[0008] In the above-mentioned piston rod with a lubrication structure, the bottom end of the fixing ring is equidistantly provided with a plurality of grooves aligned with the truncated cone groove, a pressure block is nested inside the groove, and the bottom end of the connecting rod extends into the inside of the groove and is fixedly connected to the center of the top end of the pressure block.

[0009] In the above-mentioned piston rod with a lubrication structure, a sealing ring is sleeved and connected at the joint between the connecting rod and the truncated cone-shaped groove.

[0010] In the above-mentioned piston rod with a lubrication structure, an oil filling hole communicating with the annular oil chamber is opened at the top of one side of the fixing ring, and a sealing plug is nested inside the oil filling hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are: a fixing ring is provided on the top of the sliding rod, an annular oil chamber is opened inside the fixing ring, and an oil seepage component is arranged between the annular oil chamber and the sliding rod. When the sliding rod slides upward to disengage from the piston sleeve, the oil seepage component seeps oil downward to lubricate the surface of the sliding rod, thereby effectively reducing the wear between the sliding rod and the piston sleeve during the extension and retraction process and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a piston rod with a lubrication structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of a fixing ring of a piston rod with a lubrication structure according to the utility model;

[0014] Figure 3 The utility model is a piston rod with a lubrication structure Figure 2 A partial enlarged view of point A in the middle.

[0015] In the figure: 1. sliding rod; 2. piston threaded connector; 3. fixing ring; 4. connecting ring; 5. oil filling hole; 6. sealing plug; 7. annular oil chamber; 8. oil seepage hole; 9. truncated cone groove; 10. truncated cone plug; 11. return spring; 12. L-shaped flow channel; 13. connecting rod; 14. sealing ring; 15. groove; 16. pressure block. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3 , the utility model provides a technical solution of a piston rod with a lubrication structure:

[0018] according to Figure 1-3As shown, it includes a slide rod 1, a piston threaded connector 2 is fixedly provided at one end of the slide rod 1, a connecting ring 4 is fixedly provided at the other end of the slide rod 1, a fixed ring 3 is fixedly provided on the outer wall of the other end of the slide rod 1 as an integral whole, an annular oil chamber 7 is opened inside the fixed ring 3, and an oil seepage component is provided between the annular oil chamber 7 and the slide rod 1.

[0019] Specifically, a fixing ring 3 is provided on the top of the slide rod 1, an annular oil chamber 7 is opened inside the fixing ring 3, and an oil seepage component is provided between the annular oil chamber 7 and the slide rod 1, so that the lubricating oil inside the annular oil chamber 7 can flow into the surface of the slide rod 1 for lubrication.

[0020] according to Figure 1 , Figure 2 and Figure 3 As shown, the oil seepage component includes a truncated cone plug 10, a reset spring 11 and a connecting rod 13. A plurality of truncated cone grooves 9 are equidistantly provided at the bottom of the fixing ring 3. An oil seepage hole 8 connected to the annular oil chamber 7 is provided on the top groove wall of the truncated cone groove 9. A truncated cone plug 10 is nested inside the truncated cone groove 9. A connecting rod 13 is fixedly provided at the center of the bottom end of the truncated cone plug 10. A reset spring 11 is nested and connected on the surface of the connecting rod 13. The top end of the reset spring 11 is fixedly connected to the bottom end of the truncated cone plug 10, and the bottom end of the reset spring 11 is fixedly connected to the bottom of the truncated cone groove 9.

[0021] An L-shaped flow channel 12 is provided at the bottom of the side of the truncated cone-shaped groove 9 , and the oil outlet end of the L-shaped flow channel 12 is aligned with the outer wall of the slide rod 1 .

[0022] Specifically, through the L-shaped flow channel 12 , the lubricating oil flowing out of the oil seepage hole 8 can flow into the surface of the sliding rod 1 through the L-shaped flow channel 12 , so as to lubricate the sliding rod 1 .

[0023] The bottom end of the fixing ring 3 is equidistantly provided with a plurality of grooves 15 aligned with the truncated cone groove 9 , a pressing block 16 is nested inside the groove 15 , and the bottom end of the connecting rod 13 extends into the groove 15 and is fixedly connected to the center of the top end of the pressing block 16 .

[0024] Specifically, the lifting and lowering of the truncated cone plug 10 is controlled by the cooperation of the pressing block 16 and the return spring 11 , so that the truncated cone plug 10 blocks and opens the oil seepage hole 8 .

[0025] A sealing ring 14 is sleeved and connected at the joint between the connecting rod 13 and the truncated cone groove 9 .

[0026] Specifically, the design of the sealing ring 14 increases the sealing performance of the portion where the connecting rod 13 and the truncated cone-shaped groove 9 intersect.

[0027] An oil filling hole 5 communicating with the annular oil chamber 7 is provided on the top of one side of the fixing ring 3 , and a sealing plug 6 is nested inside the oil filling hole 5 .

[0028] Specifically, the oil filling hole 5 is provided to facilitate the injection of lubricating oil into the annular oil chamber 7 .

[0029] Working principle: the utility model provides a piston rod with a lubrication structure. When the piston rod is used, it is connected to the piston inside the piston sleeve through the piston threaded connector 2. The slide rod 1 drives the fixed ring 3 to move upward synchronously during the upward movement. The upward movement of the fixed ring 3 separates the pressure block 16 at the bottom end of the fixed ring 3 from the top end of the piston sleeve. At this time, the return spring 11 sleeved on the surface of the connecting rod 13 is reset, pulling the truncated cone plug 10 to move downward. The truncated cone plug 10 moves downward to open the blocked oil seepage hole 8, and the lubricating oil inside the annular oil chamber 7 flows into the inside of the truncated cone groove 9 through the oil seepage hole 8, and flows into the surface of the slide rod 1 through the L-shaped flow channel 12 on the side of the truncated cone groove 9 for lubrication. When the slide rod 1 moves downward, the fixed ring 3 contacts the piston sleeve, and the pressure block 16 moves toward the inside of the groove 15 under pressure. The truncated cone plug 10 is pushed to block the oil seepage hole 8 through the movement of the pressure block 16, thereby completing the lubrication of the piston rod.

[0030] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A piston rod with a lubrication structure, comprising a slide rod (1), characterized in that: A piston threaded connector (2) is fixedly provided at one end of the slide rod (1), a connecting collar (4) is fixedly provided at the other end of the slide rod (1), a fixed ring (3) is fixedly provided on the outer wall of the other end of the slide rod (1), an annular oil chamber (7) is provided inside the fixed ring (3), and an oil seepage component is provided between the annular oil chamber (7) and the slide rod (1); The oil seepage component comprises a truncated cone plug (10), a return spring (11) and a connecting rod (13); a plurality of truncated cone grooves (9) are equidistantly provided at the bottom of the fixing ring (3); an oil seepage hole (8) communicating with the annular oil chamber (7) is provided on the top groove wall of the truncated cone groove (9); a truncated cone plug (10) is nested inside the truncated cone groove (9); a connecting rod (13) is fixedly provided at the center of the bottom end of the truncated cone plug (10); a return spring (11) is nested and connected on the surface of the connecting rod (13); the top end of the return spring (11) is fixedly connected to the bottom end of the truncated cone plug (10); and the bottom end of the return spring (11) is fixedly connected to the bottom of the truncated cone groove (9).

2. The piston rod with a lubrication structure according to claim 1, characterized in that: An L-shaped flow channel (12) is provided at the bottom of the side of the truncated cone-shaped groove (9), and the oil outlet end of the L-shaped flow channel (12) is aligned with the outer wall of the sliding rod (1).

3. The piston rod with a lubrication structure according to claim 1, characterized in that: The bottom end of the fixing ring (3) is provided with a plurality of grooves (15) which are aligned with the truncated cone-shaped groove (9) at equal distances, a pressing block (16) is nested inside the groove (15), and the bottom end of the connecting rod (13) extends to the inside of the groove (15) and is fixedly connected to the center of the top end of the pressing block (16).

4. The piston rod with a lubrication structure according to claim 3, characterized in that: A sealing ring (14) is sleeved and connected at the insertion point of the connecting rod (13) and the truncated cone-shaped groove (9).

5. The piston rod with a lubrication structure according to claim 3, characterized in that: An oil injection hole (5) communicating with the annular oil chamber (7) is provided at the top of one side of the fixing ring (3), and a sealing plug (6) is nested inside the oil injection hole (5).

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