Hydraulic rod with reciprocating motion

Abstract

The utility model relates to the technical field of hydraulic equipment, in particular to a reciprocating hydraulic rod which comprises a hydraulic rod body, the hydraulic rod body comprises a cylinder body, a rod body penetrates through the top end of the cylinder body, a connecting piece is arranged at the end, away from the cylinder body, of the rod body, and a piston is arranged at the other end of the rod body. The side wall of the piston is slidably connected with the inner wall of the cylinder body, an upper buffering assembly and a lower buffering assembly are arranged on the upper side and the lower side of an inner cavity of the cylinder body respectively, the upper buffering assembly comprises a supporting ring arranged outside the rod body in a sleeving mode, and the side wall of the supporting ring is fixedly connected with the inner wall of the cylinder body. And the inner side of the supporting ring is slidably connected with the surface of the rod body, L-shaped connecting rods penetrate through the left side and the right side of the supporting ring correspondingly, supporting springs are fixedly connected to the left side and the right side of the top of the supporting ring correspondingly, a piston can collide with the interior of the cylinder body, and the service life of the hydraulic cylinder is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic equipment, in particular to a hydraulic rod with reciprocating motion. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. When the hydraulic cylinder is in operation, the hydraulic rod will drive the piston to reciprocate in the hydraulic cylinder. When the hydraulic cylinder moves at high speed and stops operating, the hydraulic rod and piston inside it often collide violently. The violent collision will not only affect the performance of the hydraulic cylinder, but may also cause damage to other components in the hydraulic cylinder, which will greatly affect the service life of the hydraulic cylinder. Utility Model Content

[0003] The purpose of the utility model is to provide a hydraulic rod with reciprocating motion to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A hydraulic rod with reciprocating motion, comprising a hydraulic rod body, the hydraulic rod body comprising a cylinder, the top end of the cylinder body penetrates the rod body, one end of the rod body away from the cylinder body is provided with a connecting piece, the other end of the rod body is provided with a piston, the side wall of the piston is slidably connected with the inner wall of the cylinder body, and the upper and lower sides of the inner cavity of the cylinder body are respectively provided with an upper buffer assembly and a lower buffer assembly;

[0006] The upper buffer assembly includes a support ring sleeved on the outside of the rod body, the side wall of the support ring is fixedly connected to the inner wall of the cylinder body, the inner side of the support ring is slidably connected to the surface of the rod body, the left and right sides of the support ring are penetrated by L-shaped connecting rods, the left and right sides of the top of the support ring are fixedly connected with support springs, and the top ends of the two support springs are respectively fixedly connected to the surfaces of the two L-shaped connecting rods.

[0007] As a preferred solution of the utility model, the tops of the two L-shaped connecting rods are rotatably connected to a rotating shaft, the left and right sides of the inner wall of the top of the cylinder body are provided with sliding grooves, and sliding rods are arranged inside the two sliding grooves. The left and right ends of the two sliding rods are respectively fixedly connected to the left and right inner walls of the two sliding grooves, and the surfaces of the two sliding rods are slidably connected to sliders, and the bottom ends of the two sliders are respectively rotatably connected to one end of the two rotating shafts away from the L-shaped connecting rods.

[0008] As a preferred solution of the utility model, the surfaces of the two sliding rods are sleeved with first buffer springs, one end of the two first buffer springs is fixedly connected to the inner wall of the sliding groove, and the other end of the two first buffer springs is respectively fixedly connected to the surfaces of the two sliding blocks.

[0009] As a preferred solution of the utility model, the lower buffer assembly includes a movable plate arranged below the piston, the side wall of the movable plate is slidably connected to the inner wall of the cylinder body, the left and right sides of the bottom of the movable plate are rotatably connected to the first rotating connecting rod, and the left and right sides of the bottom of the inner cavity of the cylinder body are rotatably connected to the second rotating connecting rod.

[0010] As a preferred solution of the utility model, connecting blocks are provided on the left and right sides below the movable plate, and the top ends of the two connecting blocks are respectively rotatably connected to the ends of the two first rotating connecting rods away from the movable plate, and the bottom ends of the two connecting blocks are respectively rotatably connected to the ends of the two second rotating connecting rods away from the cylinder body.

[0011] As a preferred solution of the utility model, a sleeve rod and a sleeve are provided between the two connecting blocks, the right end of the sleeve rod extends to the interior of the sleeve, the left end of the sleeve rod is fixedly connected to the surface of the left connecting block, the right end of the sleeve is fixedly connected to the surface of the right connecting block, and a second buffer spring is provided inside the sleeve, one end of the second buffer spring is fixedly connected to the right end of the sleeve rod, and the other end of the second buffer spring is fixedly connected to the inner wall of the sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the upper buffer assembly and the lower buffer assembly can buffer the collision between the piston and the rod body and the inner wall of the cylinder body when the piston and the rod body move, effectively protecting other components inside the piston machine hydraulic cylinder and improving the service life of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the cylinder body of the utility model;

[0016] Figure 3 It is an enlarged structural schematic diagram of A of the utility model;

[0017] Figure 4 It is an enlarged structural schematic diagram of B of the utility model.

[0018] In the figure: 1. hydraulic rod body; 101. cylinder body; 102. rod body; 103. connecting piece; 104. piston; 2. upper buffer assembly; 201. support ring; 202. L-shaped connecting rod; 203. support spring; 204. rotating shaft; 205. slide groove; 206. slide rod; 207. slider; 208. first buffer spring; 3. lower buffer assembly; 301. movable plate; 302. first rotating connecting rod; 303. second rotating connecting rod; 304. connecting block; 305. sleeve rod; 306. sleeve; 307. second buffer spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] For examples, see Figure 1 , Figure 2 , Figure 3 , the utility model provides a technical solution:

[0022] A hydraulic rod with reciprocating motion comprises a hydraulic rod body 1, the hydraulic rod body 1 comprises a cylinder body 101, a rod body 102 is penetrated at the top end of the cylinder body 101, a connecting piece 103 is arranged at one end of the rod body 102 away from the cylinder body 101, a piston 104 is arranged at the other end of the rod body 102, a side wall of the piston 104 is slidably connected to the inner wall of the cylinder body 101, an upper buffer assembly 2 and a lower buffer assembly 3 are respectively arranged at the upper and lower sides of the inner cavity of the cylinder body 101, the upper buffer assembly 2 comprises a support ring 201 sleeved on the outside of the rod body 102, the side wall of the support ring 201 is fixedly connected to the inner wall of the cylinder body 101, the inner side of the support ring 201 is slidably connected to the surface of the rod body 102, L-shaped connecting rods 202 are penetrated on both the left and right sides of the support ring 201, support springs 203 are fixedly connected to the left and right sides of the top of the support ring 201, and the tops of the two support springs 203 are respectively fixedly connected to the surfaces of the two L-shaped connecting rods 202.

[0023] like Figure 3As shown, the tops of the two L-shaped connecting rods 202 are rotatably connected with a rotating shaft 204, and the left and right sides of the inner wall of the top of the cylinder body 101 are provided with sliding grooves 205. Sliding rods 206 are arranged inside the two sliding grooves 205. The left and right ends of the two sliding rods 206 are respectively fixedly connected to the left and right inner walls of the two sliding grooves 205. The surfaces of the two sliding rods 206 are slidably connected with sliders 207. The bottom ends of the two sliders 207 are respectively rotatably connected to one end of the two rotating shafts 204 away from the L-shaped connecting rod 202. The surfaces of the two sliding rods 206 are sleeved with first buffer springs 208, and one end of the two first buffer springs 208 is fixedly connected to the inner wall of the sliding groove 205, and the other ends of the two first buffer springs 208 are respectively fixedly connected to the surfaces of the two sliders 207.

[0024] like Figure 4 As shown, the lower buffer assembly 3 includes a movable plate 301 arranged below the piston 104, the side wall of the movable plate 301 is slidably connected to the inner wall of the cylinder body 101, the left and right sides of the bottom of the movable plate 301 are rotatably connected to the first rotating connecting rod 302, the left and right sides of the bottom of the inner cavity of the cylinder body 101 are rotatably connected to the second rotating connecting rod 303, and the left and right sides of the bottom of the movable plate 301 are respectively provided with connecting blocks 304, the top ends of the two connecting blocks 304 are respectively rotatably connected to the ends of the two first rotating connecting rods 302 away from the movable plate 301, and the bottom ends of the two connecting blocks 304 are respectively connected to the two second rotating connecting rods 303. The second rotating connecting rod 303 is rotatably connected at one end away from the cylinder body 101, and a sleeve rod 305 and a sleeve 306 are arranged between the two connecting blocks 304. The right end of the sleeve rod 305 extends to the inside of the sleeve 306, the left end of the sleeve rod 305 is fixedly connected to the surface of the left connecting block 304, and the right end of the sleeve 306 is fixedly connected to the surface of the right connecting block 304. A second buffer spring 307 is arranged inside the sleeve 306, one end of the second buffer spring 307 is fixedly connected to the right end of the sleeve rod 305, and the other end of the second buffer spring 307 is fixedly connected to the inner wall of the sleeve 306.

[0025] The working process of the utility model is as follows: when in use, the rod body 102 will drive the piston 104 to do reciprocating motion inside the cylinder body 101. When the piston 104 moves to the bottom end inside the cylinder body 101, the piston 104 will hit the movable plate 301. The movable plate 301 moves downward and pushes the two connecting blocks 304 to approach each other through the first rotating connecting rod 302, so that the sleeve rod 305 squeezes the second buffer spring 307. When the piston 104 moves to the top of the cylinder body 101, the two ends of the top of the piston 104 hit the L-shaped connecting rod 202 to stretch the supporting spring 203. At the same time, the two L-shaped connecting rods 202 use the two rotating shafts 204 to push the two sliding blocks 207 to slide on the surface of the sliding rod 206 to squeeze the first buffer spring 208. At the same time, the first buffer spring 208, the supporting spring 203 and the second buffer spring 307 can buffer the impact of the piston 104, effectively protecting other components inside the piston machine hydraulic cylinder and improving the service life of the hydraulic cylinder.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic rod with reciprocating motion, comprising a hydraulic rod body (1), characterized in that: The hydraulic rod body (1) comprises a cylinder body (101), a rod body (102) penetrates the top end of the cylinder body (101), a connecting piece (103) is provided at one end of the rod body (102) away from the cylinder body (101), a piston (104) is provided at the other end of the rod body (102), a side wall of the piston (104) is slidably connected to the inner wall of the cylinder body (101), and an upper buffer assembly (2) and a lower buffer assembly (3) are respectively provided on the upper and lower sides of the inner cavity of the cylinder body (101); The upper buffer assembly (2) comprises a support ring (201) sleeved on the outside of the rod body (102); the side wall of the support ring (201) is fixedly connected to the inner wall of the cylinder body (101); the inner side of the support ring (201) is slidably connected to the surface of the rod body (102); L-shaped connecting rods (202) penetrate the left and right sides of the support ring (201); support springs (203) are fixedly connected to the left and right sides of the top of the support ring (201); and the top ends of the two support springs (203) are fixedly connected to the surfaces of the two L-shaped connecting rods (202) respectively.

2. A hydraulic rod with reciprocating motion according to claim 1, characterized in that: The tops of the two L-shaped connecting rods (202) are rotatably connected to a rotating shaft (204), the left and right sides of the inner wall of the top of the cylinder body (101) are provided with sliding grooves (205), and the insides of the two sliding grooves (205) are provided with sliding rods (206), and the left and right ends of the two sliding rods (206) are respectively fixedly connected to the left and right inner walls of the two sliding grooves (205), and the surfaces of the two sliding rods (206) are slidably connected to sliders (207), and the bottom ends of the two sliders (207) are respectively rotatably connected to one end of the two rotating shafts (204) away from the L-shaped connecting rod (202).

3. A hydraulic rod with reciprocating motion according to claim 2, characterized in that: The surfaces of the two slide bars (206) are both sleeved with first buffer springs (208), one end of the two first buffer springs (208) is fixedly connected to the inner wall of the slide groove (205), and the other end of the two first buffer springs (208) is respectively fixedly connected to the surfaces of the two sliders (207).

4. A hydraulic rod with reciprocating motion according to claim 1, characterized in that: The lower buffer assembly (3) comprises a movable plate (301) arranged below the piston (104); the side wall of the movable plate (301) is slidably connected to the inner wall of the cylinder body (101); the left and right sides of the bottom of the movable plate (301) are rotatably connected to a first rotating connecting rod (302); and the left and right sides of the bottom of the inner cavity of the cylinder body (101) are rotatably connected to a second rotating connecting rod (303).

5. A hydraulic rod with reciprocating motion according to claim 4, characterized in that: Connecting blocks (304) are provided on both left and right sides below the movable plate (301), and the top ends of the two connecting blocks (304) are respectively rotatably connected to one end of the two first rotating connecting rods (302) away from the movable plate (301), and the bottom ends of the two connecting blocks (304) are respectively rotatably connected to one end of the two second rotating connecting rods (303) away from the cylinder body (101).

6. A hydraulic rod with reciprocating motion according to claim 5, characterized in that: A sleeve rod (305) and a sleeve (306) are provided between the two connecting blocks (304); the right end of the sleeve rod (305) extends to the interior of the sleeve (306); the left end of the sleeve rod (305) is fixedly connected to the surface of the left connecting block (304); the right end of the sleeve (306) is fixedly connected to the surface of the right connecting block (304); a second buffer spring (307) is provided inside the sleeve (306); one end of the second buffer spring (307) is fixedly connected to the right end of the sleeve rod (305); and the other end of the second buffer spring (307) is fixedly connected to the inner wall of the sleeve (306).

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