CN216554706U

CN216554706U - Hydraulic cylinder with stroke protection function

Info

Publication number: CN216554706U
Application number: CN202122862993.1U
Authority: CN
Inventors: 张民; 王启重; 夏继伟; 谢风
Original assignee: Xuzhou Yanhuang Engineering Machinery Co ltd
Current assignee: Xuzhou Yanhuang Engineering Machinery Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-05-17
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a hydraulic oil cylinder with a stroke protection function, which belongs to the technical field of hydraulic oil cylinders and comprises an installation box, wherein a hydraulic oil cylinder body is arranged in the installation box, limit protection components are symmetrically connected to two sides of the hydraulic oil cylinder body, and each limit protection component comprises a connecting frame, a limit baffle, a buffer spring, a buffer pad, a guide screw, a connecting slide block and a fixed seat; according to the utility model, the limit protection assembly is arranged, so that the over-stroke condition of the equipment is prevented, the use stability of the equipment is improved, the damage condition is prevented, the working quality is improved, and the service life of the equipment is ensured.

Description

Hydraulic cylinder with stroke protection function

Technical Field

The utility model belongs to the technical field of hydraulic oil cylinders, and particularly relates to a hydraulic oil cylinder with a stroke protection function.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary.

The prior art has the following problems: in the water-cooling hydro-cylinder of adjustable stroke that china patent application number is 202021160367.7 disclosed, it can't protect hydraulic cylinder's stroke when using, easily causes the condition that equipment damaged to appear, reduces equipment life, can't guarantee spacing stability when using simultaneously, and use strength is low.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a hydraulic oil cylinder with a stroke protection function, which has the characteristics of stable limit and good protection effect.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a hydraulic cylinder with stroke protect function, includes the install bin, the inside of install bin is provided with the hydraulic cylinder body, the bilateral symmetry of hydraulic cylinder body is connected with spacing protection subassembly, spacing protection subassembly includes link, limit baffle, buffer spring, blotter, lead screw, link block and fixing base, wherein, the surface symmetry of install bin is fixed with the fixing base, the internal connection of fixing base has lead screw, one side of lead screw cup joints and is provided with the blotter, one side of blotter is connected with buffer spring, one side that buffer spring kept away from the blotter is provided with limit baffle, one side that buffer spring kept away from the blotter cup joints and is provided with link block, link block's bottom is connected with the link.

Preferably, the surface of the installation box is symmetrically fixed with guide seats corresponding to the connecting frame.

Preferably, the inside of the connecting sliding block is provided with a through hole corresponding to the guide screw, and the diameter of the through hole is four millimeters larger than that of the guide screw.

Preferably, the inside of fixing base corresponds lead screw and is provided with stable fixed subassembly, it includes regulating plate, fixed pinion rack, lead screw, adjustment tank, guide bar and connecting block to stabilize fixed subassembly, wherein, the inside of fixing base is provided with the adjustment tank, the inside of adjustment tank is provided with the regulating plate, the bottom of regulating plate is provided with fixed pinion rack, the bilateral symmetry of regulating plate is fixed with the connecting block, the inside of connecting block is provided with the lead screw, one side that the lead screw was kept away from to the regulating plate is provided with the guide bar.

Preferably, the inner part of the fixed toothed plate is semicircular, and the rack in the fixed toothed plate corresponds to the thread clearance of the guide screw.

Preferably, the top end of the screw rod is provided with an adjusting handle, and the bottom end inside the adjusting groove is provided with a bearing corresponding to the screw rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, by arranging the limiting protection assembly, the hydraulic oil cylinder drives the connecting slide block to move along the guide screw rod when in use and enables the connecting slide block to abut against one side of the cushion pad to protect the cushion pad, so that the condition of over-stroke of equipment is prevented, the use stability of the equipment is improved, the damage condition is prevented, the working quality is improved, and the service life of the equipment is ensured.

2. According to the utility model, by arranging the stable fixing assembly, the adjustable lead screw drives the fixing toothed plate to butt and fix the guide screw, so that the guide screw is prevented from shaking, the use strength of equipment is ensured, and the working quality is improved.

Drawings

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

FIG. 2 is a schematic structural view of a position-limiting protection assembly of the present invention;

fig. 3 is a schematic structural view of the stabilizing and fixing assembly of the present invention.

In the figure: 1. a hydraulic cylinder body; 2. a limiting protection component; 21. a connecting frame; 22. a limit baffle; 23. a buffer spring; 24. a cushion pad; 25. a lead screw; 26. connecting the sliding block; 27. a fixed seat; 28. a guide seat; 3. a stabilizing fixture assembly; 31. an adjusting plate; 32. a fixed toothed plate; 33. a screw rod; 34. an adjustment groove; 35. a guide bar; 36. connecting blocks; 4. and (5) installing a box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a hydraulic cylinder with stroke protect function, including install bin 4, the inside of install bin 4 is provided with hydraulic cylinder body 1, hydraulic cylinder body 1's bilateral symmetry is connected with spacing protection subassembly 2, spacing protection subassembly 2 includes link 21, limit baffle 22, buffer spring 23, blotter 24, lead screw 25, link block 26 and fixing base 27, wherein, install bin 4's surface symmetry is fixed with fixing base 27, fixing base 27's internal connection has lead screw 25, one side of lead screw 25 is cup jointed and is provided with blotter 24, one side of blotter 24 is connected with buffer spring 23, one side that blotter 24 was kept away from to buffer spring 23 is provided with limit baffle 22, one side that blotter 24 was kept away from to lead screw 25 is cup jointed and is provided with link block 26, link block 26's bottom is connected with link 21.

Specifically, the guide seats 28 are symmetrically fixed on the surface of the mounting box 4 corresponding to the connecting frame 21.

Through adopting above-mentioned technical scheme, guarantee the stability when link 21 removes, prevent the crooked condition from appearing.

Specifically, the inside of the connecting slider 26 is provided with a through hole corresponding to the lead screw 25, and the diameter of the through hole is four millimeters larger than the lead screw 25.

By adopting the technical scheme, the connecting slide block 26 can move smoothly along the guide screw rod 25, and the obstruction to the work of the hydraulic oil cylinder 1 is prevented.

This embodiment is used: when hydraulic cylinder 1 used, link frame 21 removed along with it, and link block 26 slides along lead screw 25 simultaneously, and when link block 26 butt was in one side of blotter 24, buffer spring 23 compressed protected hydraulic cylinder 1, can follow fixing base 27 simultaneously and rotate lead screw 25 for limit baffle 22's position can be adjusted, is convenient for protect the hydraulic cylinder 1 of different strokes.

Example 2

The present embodiment is different from embodiment 1 in that: specifically, the inside of fixing base 27 corresponds lead screw 25 and is provided with stable fixed subassembly 3, stable fixed subassembly 3 includes regulating plate 31, fixed toothed plate 32, lead screw 33, adjustment tank 34, guide bar 35 and connecting block 36, wherein, the inside of fixing base 27 is provided with adjustment tank 34, the inside of adjustment tank 34 is provided with regulating plate 31, the bottom of regulating plate 31 is provided with fixed toothed plate 32, the bilateral symmetry of regulating plate 31 is fixed with connecting block 36, the inside of connecting block 36 is provided with lead screw 33, one side that lead screw 33 was kept away from to regulating plate 31 is provided with guide bar 35.

Through adopting above-mentioned technical scheme, after lead screw 25 adjusts, rotatable lead screw 33 makes connecting block 36 slide along guide bar 35, and the fixed tooth plate 32 removal and the butt of regulating plate 31 bottom are on lead screw 25's surface simultaneously for the condition that rocks can not appear in lead screw 25, guarantees the stability of equipment use, prevents the condition that rocks.

Specifically, the inner portion of the fixed toothed plate 32 is configured to be semicircular, and the rack inside the fixed toothed plate 32 corresponds to the thread clearance of the lead screw 25.

Through adopting above-mentioned technical scheme, improve the degree of agreeing with of fixed pinion rack 32 and lead screw 25, guarantee fixed quality.

Specifically, the top end of the screw rod 33 is provided with an adjusting handle, and the bottom end inside the adjusting groove 34 is provided with a bearing corresponding to the screw rod 33.

Through adopting above-mentioned technical scheme, guarantee the convenience that lead screw 33 used, improve regulation efficiency, practice thrift manpower resources.

This embodiment is used: after adjusting at lead screw 25, rotatable lead screw 33 makes connecting block 36 slide along guide bar 35, and the fixed tooth plate 32 of regulating plate 31 bottom removes and the butt is on lead screw 25's surface simultaneously for the condition that rocks can not appear in lead screw 25, guarantees the stability of equipment use, prevents the condition that rocks.

The structure and the use principle of the installation box 4 in the utility model are disclosed in the water-cooled oil cylinder with adjustable stroke disclosed in Chinese patent application No. 202021160367.7.

The working principle and the using process of the utility model are as follows: when the hydraulic oil cylinder is used, when the hydraulic oil cylinder 1 is used, the connecting frame 21 moves along with the hydraulic oil cylinder 1, the connecting slide block 26 slides along the guide screw rod 25, when the connecting slide block 26 abuts against one side of the cushion pad 24, the buffer spring 23 is compressed to protect the hydraulic oil cylinder 1, and meanwhile, the guide screw rod 25 can be rotated along the fixed seat 27, so that the position of the limit baffle 22 can be adjusted, and the hydraulic oil cylinders 1 with different strokes can be protected conveniently;

after the adjusting of lead screw 25, rotatable lead screw 33 makes connecting block 36 slide along guide bar 35, and the fixed toothed plate 32 of regulating plate 31 bottom removes and the butt is on the surface of lead screw 25 simultaneously for the condition that rocks can not appear in lead screw 25, guarantees the stability of equipment usage, prevents the condition that rocks.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydraulic cylinder with stroke protect function, includes install bin (4), its characterized in that: the hydraulic oil cylinder body (1) is arranged in the installation box (4), the two sides of the hydraulic oil cylinder body (1) are symmetrically connected with limiting protection components (2), each limiting protection component (2) comprises a connecting frame (21), a limiting baffle (22), a buffer spring (23), a cushion pad (24), a guide screw (25), a connecting slide block (26) and a fixing seat (27), wherein the fixing seats (27) are symmetrically fixed on the surface of the installation box (4), the guide screw (25) is connected in the fixing seat (27), the cushion pad (24) is sleeved on one side of the guide screw (25), the buffer spring (23) is connected to one side of the cushion pad (24), the limiting baffle (22) is arranged on one side of the buffer spring (23) far away from the cushion pad (24), the connecting slide block (26) is sleeved on one side of the guide screw (25) far away from the cushion pad (24), the bottom end of the connecting slide block (26) is connected with a connecting frame (21).

2. The hydraulic oil cylinder with the stroke protection function as claimed in claim 1, characterized in that: and guide seats (28) are symmetrically fixed on the surface of the installation box (4) corresponding to the connecting frame (21).

3. The hydraulic oil cylinder with the stroke protection function as claimed in claim 1, characterized in that: the inside of the connecting sliding block (26) is provided with a through hole corresponding to the guide screw rod (25), and the diameter of the through hole is four millimeters larger than that of the guide screw rod (25).

4. The hydraulic oil cylinder with the stroke protection function as claimed in claim 1, characterized in that: the utility model discloses a lead screw (25) is fixed to the inside of fixing base (27), the inside of fixing base (27) corresponds lead screw (25) and is provided with stable fixed subassembly (3), stable fixed subassembly (3) are including regulating plate (31), fixed pinion rack (32), lead screw (33), adjustment tank (34), guide bar (35) and connecting block (36), wherein, the inside of fixing base (27) is provided with adjustment tank (34), the inside of adjustment tank (34) is provided with regulating plate (31), the bottom of regulating plate (31) is provided with fixed pinion rack (32), the bilateral symmetry of regulating plate (31) is fixed with connecting block (36), the inside of connecting block (36) is provided with lead screw (33), one side that lead screw (33) were kept away from in regulating plate (31) is provided with guide bar (35).

5. The hydraulic oil cylinder with the stroke protection function as claimed in claim 4, characterized in that: the inner part of the fixed toothed plate (32) is semicircular, and a rack in the fixed toothed plate (32) corresponds to a thread clearance of the guide screw rod (25).

6. The hydraulic oil cylinder with the stroke protection function as claimed in claim 4, characterized in that: the top of lead screw (33) is provided with the regulation handle, the inside bottom of adjustment tank (34) is provided with the bearing corresponding to lead screw (33).