CN211314966U

CN211314966U - Hydraulic cylinder with buffering function

Info

Publication number: CN211314966U
Application number: CN201922090228.5U
Authority: CN
Inventors: 杨宇
Original assignee: Xuzhou Guolian Cnc Equipment Technology Co ltd
Current assignee: Xuzhou Guolian Cnc Equipment Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-21
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a pneumatic cylinder with buffer function in pneumatic cylinder technical field, the inside first fixed block that sets up of buffer board, first fixed block right side sets up the second fixed block, set up buffer spring between first fixed block and the second fixed block, buffer spring upper portion sets up first movable block, first movable block respectively with first fixed block and second set up first buffer beam between fixed, the buffer spring bottom sets up the second movable block, the second movable block respectively with first fixed block and second fixed block between set up the second buffer beam. The impact force of the piston rod is reduced through the mode, so that the impact force received when the hydraulic cylinder realizes reciprocating motion is wholly buffered, and the working efficiency and the service life of the hydraulic cylinder are effectively improved.

Description

Hydraulic cylinder with buffering function

Technical Field

The utility model relates to a pneumatic cylinder technical field specifically is a pneumatic cylinder with buffer function.

Background

The hydraulic pressure is a device for transmitting pressure through hydraulic oil, and is a carrier of a hydraulic system, wherein a complete hydraulic system consists of five parts, namely a power element, an execution element, a control element, an auxiliary element and hydraulic oil, wherein a hydraulic cylinder is used as the execution element in the hydraulic system and is a device for converting the pressure of liquid into mechanical energy, and because the momentum of the hydraulic cylinder during working is overlarge, a piston rod can drive a piston to violently collide with a cylinder bottom during movement of the piston rod, the operation and the use of the hydraulic cylinder are easily influenced, and the working efficiency and the service life of the hydraulic cylinder can be reduced under a long-time working state. To this end, we propose a hydraulic cylinder with a damping function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic cylinder with buffer function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic cylinder with a buffering function comprises a hydraulic cylinder, wherein a baffle is arranged inside the hydraulic cylinder, two groups of limiting plates are arranged at the right end of the baffle, a reset spring is arranged between the two groups of limiting plates, a cylinder pipe is arranged on the right side of the reset spring, a through hole is formed in the cylinder pipe, a piston rod is arranged inside the cylinder pipe, an elastic column is arranged at the right end of the piston rod, a buffering sleeve is arranged between the piston rod and the elastic column, a buffering plate is arranged on the right side of the elastic column, two groups of retarding blocks are arranged at the left end of the buffering plate, a first fixed block is arranged inside the buffering plate, a second fixed block is arranged on the right side of the first fixed block, a buffering spring is arranged between the first fixed block and the second fixed block, a first movable block is arranged at the upper part of the buffering spring, and a first buffering, and a second movable block is arranged at the bottom of the buffer spring, and a second buffer rod is arranged between the second movable block and the first fixed block and between the second movable block and the second fixed block respectively.

Preferably, the first fixed block and the second fixed block are both internally provided with movable shafts, and the first movable block and the second movable block are both internally provided with rotating shafts.

Preferably, the first movable block is arranged at the upper end inside the buffer board, the second movable block is arranged at the bottom end inside the buffer board, and the sliding grooves are formed in the upper end and the lower end inside the buffer board.

Preferably, the elastic column is internally provided with a telescopic rod, the telescopic rod is provided with a pressure spring, the right side of the telescopic rod is provided with a push rod, and a push plate is arranged between the telescopic rod and the push rod.

Preferably, the right end of the push rod extends to the outside of the right end of the elastic column, and the push rod is arranged between the two groups of the retarding blocks.

Preferably, the buffer sleeve is provided with a rubber layer, a wear-resistant layer is arranged in the rubber layer, and an elastic layer is arranged between the rubber layer and the wear-resistant layer.

Preferably, the buffer sleeve is nested in the piston rod, the buffer sleeve and the elastic column are bonded through strong glue, and the outer diameter of the buffer sleeve is slightly smaller than the distance between the two groups of the slowing blocks.

Compared with the prior art, the beneficial effects of the utility model are that: the piston rod does reciprocating motion under the drive of electric power and hydraulic oil, the reset spring assists the piston rod to reset in the motion process, when the piston rod moves towards the right side, the elastic column collides with the buffer plate, the buffer plate is stressed, the internal buffer spring stretches, the first movable block and the second movable block move towards the right side to drive the first buffer rod and the second buffer rod to contract, so that the first fixed block moves towards the second fixed block, when the piston rod resets, the impact force on the buffer plate disappears, the buffer spring recovers the state before deformation, the first movable block and the second movable block reset, the first buffer rod and the second buffer rod expand, the first fixed block is far away from the second fixed block, the impact force caused by the piston rod to the cylinder body can be effectively reduced, the impact force of the piston rod is reduced by the mode, the impact force received when the hydraulic cylinder realizes reciprocating motion is wholly received, the structure is simple, the working efficiency and the service life of the buffer hydraulic cylinder are effectively, the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic view of the hydraulic cylinder of the present invention;

FIG. 2 is a schematic view of the internal structure of the buffer block of the present invention;

FIG. 3 is a schematic view of the structure of the elastic column of the present invention;

fig. 4 is a schematic view of the structure of the cushion collar of the present invention.

In the figure: 1 pneumatic cylinder, 2 elastic columns, 21 push rod, 22 catch plate, 23 telescopic link, 24 compression spring, 3 slow down the piece, 4 buffer boards, 41 first fixed block, 42 first buffer pole, 43 first movable block, 44 buffer spring, 45 second fixed block, 46 second buffer pole, 47 second movable block, 5 cushion collar, 51 rubber layer, 52 elastic layer, 53 wearing layer, 6 piston rods, 7 through-holes, 8 hydro-cylinder pipes, 9 reset spring, 10 limiting plates, 11 baffles.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a hydraulic cylinder with a buffering function comprises a hydraulic cylinder 1, a baffle 11 is arranged inside the hydraulic cylinder 1, the baffle 11 is arranged on the left side of the hydraulic cylinder 1, two groups of limiting plates 10 are arranged at the right end of the baffle 11, a reset spring 9 is arranged between the two groups of limiting plates 10, the reset spring 9 is arranged on the right end of the baffle 11, a cylinder pipe 8 is arranged on the right side of the reset spring 9, a through hole 7 is formed in the cylinder pipe 8, a piston rod 6 is arranged inside the cylinder pipe 8, hydraulic oil is injected into the cylinder pipe 8 inside the hydraulic cylinder 1, a piston rod 6 starts to reciprocate in the cylinder pipe 8 under the driving of external electric power and hydraulic oil, meanwhile, the reset spring 9 on the left side of the cylinder pipe 8 assists the piston rod 6 to reset in the movement process, an elastic column 2 is arranged at the right end of the piston rod 6, a buffer sleeve 5 is arranged between the piston rod 6 and the elastic, two groups of retarding blocks 3 are arranged at the left end of the buffering plate 4, a first fixed block 41 is arranged in the buffering plate 3, a second fixed block 45 is arranged at the right side of the first fixed block 41, a buffering spring 44 is arranged between the first fixed block 41 and the second fixed block 45, a first movable block 43 is arranged at the upper part of the buffering spring 44, a first buffering rod 42 is arranged between the first movable block 43 and the first fixed block 41 and between the first movable block 43 and the second fixed block 45 respectively, a second movable block 47 is arranged at the bottom of the buffering spring 44, a second buffering rod 46 is arranged between the second movable block 47 and the first fixed block 41 and between the second fixed block 45 respectively, when the piston rod 6 moves towards the right side, the elastic column 2 at the right side of the piston rod 6 collides with the buffering plate 4, the buffering plate 4 is stressed, so that the internal buffering spring 44 extends and retracts, the first movable block 43 and the second movable block 47 move towards the right side, so as to drive the first buffering rod 42 and the second buffering rod 46, when the piston rod 6 resets, the impact on the buffer board 4 disappears, the buffer spring 44 restores the state before deformation, the first movable block 43 and the second movable block 47 reset, the first buffer rod 42 and the second buffer rod 46 expand, the first fixed block 41 is far away from the second fixed block 45, and the impact on the cylinder body itself caused by the piston rod 6 can be effectively reduced.

Wherein, the first fixed block 41 and the second fixed block 45 are both internally provided with a movable shaft, the first movable block 43 and the second movable block 47 are both internally provided with a rotating shaft, and the first buffer rod 42 and the second buffer rod 46 are respectively connected with the first fixed block 41, the second fixed block 45, the first movable block 43 and the second movable block 47 through the movable shaft and the rotating shaft;

the first movable block 43 is arranged at the upper end in the buffer plate 4, the second movable block 47 is arranged at the bottom end in the buffer plate 4, the upper end and the lower end in the buffer plate 4 are both provided with a sliding chute, the first movable block 43 and the second movable block 47 are in sliding connection with the buffer plate 4, the buffer spring 44 is stressed to stretch, and the first movable block 43 and the second movable block 47 move along the sliding chutes, so that the first buffer rod 42 and the second buffer rod 46 are driven to shrink;

the telescopic rod 23 is arranged in the elastic column 2, the pressure spring 24 is arranged on the telescopic rod 23, the push rod 21 is arranged on the right side of the telescopic rod 23, the push plate 22 is arranged between the telescopic rod 23 and the push rod 21, and when the elastic column 2 collides with the buffer plate 4, the pressure spring 24 is stressed and stretched at the same time, so that the telescopic rod 23 drives the push rod 21 to move towards the right side, the impact force of the elastic column 2 colliding with the buffer plate 4 can be effectively relieved, and the double-layer relief is more stable;

the right end of the push rod 21 extends to the outside of the right end of the elastic column 2, and the push rod 21 is arranged between the two groups of the retarding blocks 3;

the buffer sleeve 5 is provided with a rubber layer 51, a wear-resistant layer 53 is arranged in the rubber layer 51, an elastic layer 52 is arranged between the rubber layer 51 and the wear-resistant layer 53, and the buffer sleeve 5 effectively prevents the piston rod 6 from directly impacting the buffer plate 4 after the elastic column 2 is damaged, so that double-layer damage of the piston rod 6 and the buffer plate 4 is caused;

the buffer sleeve 5 is nested in the piston rod 6, the buffer sleeve 5 and the elastic column 2 are bonded through strong glue, and the outer diameter of the buffer sleeve 5 is slightly smaller than the distance between the upper part and the lower part of the two groups of the slowing blocks 3.

The working principle is as follows: hydraulic oil is injected into an oil cylinder pipe 8 in the hydraulic cylinder 1, the piston rod 6 starts to reciprocate in the oil cylinder pipe 8 under the drive of external electric power and hydraulic oil, meanwhile, a return spring 9 on the left side of the oil cylinder pipe 8 assists the piston rod 6 to reset in the motion process, when the piston rod 6 moves towards the right side, the elastic column 2 on the right side of the piston rod 6 collides with the buffer plate 4, the buffer plate 4 is stressed to enable the internal buffer spring 44 to stretch and contract, the first movable block 43 and the second movable block 47 move towards the right side to drive the first buffer rod 42 and the second buffer rod 46 to contract, so that the first fixed block 41 moves towards the second fixed block 45, when the piston rod 6 resets, the impact force on the buffer plate 4 disappears, the buffer spring 44 recovers the state before deformation, the first movable block 43 and the second movable block 47 reset, the first buffer rod 42 and the second buffer rod 46 expand, the first fixed block 41 is far away from the second fixed block 45, the impact force of the piston rod 6 on the cylinder body can be effectively reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hydraulic cylinder with a buffering function comprises a hydraulic cylinder (1), and is characterized in that: the hydraulic cylinder is characterized in that a baffle (11) is arranged inside the hydraulic cylinder (1), two groups of limiting plates (10) are arranged at the right end of the baffle (11), a reset spring (9) is arranged between the two groups of limiting plates (10), a cylinder pipe (8) is arranged on the right side of the reset spring (9), a through hole (7) is formed in the cylinder pipe (8), a piston rod (6) is arranged inside the cylinder pipe (8), an elastic column (2) is arranged at the right end of the piston rod (6), a buffer sleeve (5) is arranged between the piston rod (6) and the elastic column (2), a buffer plate (4) is arranged on the right side of the elastic column (2), two groups of buffer blocks (3) are arranged at the left end of the buffer plate (4), a first fixed block (41) is arranged inside the buffer plate (4), a second fixed block (45) is arranged on the right side of the first fixed block (41), and a buffer spring (44) is arranged, buffer spring (44) upper portion sets up first movable block (43), first movable block (43) respectively with first fixed block (41) and second fixed block (45) between set up first buffer beam (42), buffer spring (44) bottom sets up second movable block (47), second movable block (47) respectively with first fixed block (41) and second fixed block (45) between set up second buffer beam (46).

2. The hydraulic cylinder with a cushioning function according to claim 1, wherein: the first fixed block (41) and the second fixed block (45) are internally provided with movable shafts, and the first movable block (43) and the second movable block (47) are internally provided with rotating shafts.

3. The hydraulic cylinder with a cushioning function according to claim 1, wherein: first movable block (43) set up in the inside upper end of buffer board (4), second movable block (47) set up in the inside bottom of buffer board (4), the inside lower extreme of going up of buffer board (4) all sets up the spout.

4. The hydraulic cylinder with a cushioning function according to claim 1, wherein: the elastic column (2) is internally provided with a telescopic rod (23), the telescopic rod (23) is provided with a pressure spring (24), the right side of the telescopic rod (23) is provided with a push rod (21), and a push plate (22) is arranged between the telescopic rod (23) and the push rod (21).

5. The hydraulic cylinder with a cushioning function according to claim 4, wherein: the right end of the push rod (21) extends to the outside of the right end of the elastic column (2), and the push rod (21) is arranged between the two groups of the retarding blocks (3).

6. The hydraulic cylinder with a cushioning function according to claim 1, wherein: the buffer sleeve (5) is provided with a rubber layer (51), a wear-resistant layer (53) is arranged in the rubber layer (51), and an elastic layer (52) is arranged between the rubber layer (51) and the wear-resistant layer (53).

7. The hydraulic cylinder with a cushioning function according to claim 6, wherein: the buffer sleeve (5) is nested in the piston rod (6), the buffer sleeve (5) and the elastic column (2) are bonded through strong glue, and the outer diameter of the buffer sleeve (5) is slightly smaller than the distance between the upper part and the lower part of the two groups of the retarding blocks (3).