CN219242343U

CN219242343U - Wear-resistant hydraulic cylinder

Info

Publication number: CN219242343U
Application number: CN202320187503.9U
Authority: CN
Inventors: 黄昭新; 黄昭福; 郭宝珠
Original assignee: Quanzhou Baiyi Machinery Co ltd
Current assignee: Quanzhou Baiyi Machinery Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-06-23
Anticipated expiration: 2033-02-07

Abstract

The utility model discloses an anti-wear hydraulic cylinder which comprises a cylinder body, a cylinder cover and an anti-wear device, wherein the cylinder body is embedded in the cylinder cover, the cylinder cover comprises an upper end cover and a lower end cover, four sides of the upper end cover and the lower end cover are provided with first internal threads and second internal threads, the anti-wear device comprises a screw, a rotatable block and a protection block, the upper part and the lower part of the screw are respectively provided with first external threads, the upper part and the lower part of the rotatable block are respectively provided with second external threads and third internal threads, the second external threads are movably screwed with the first internal threads, a through hole is formed in the middle of the protection block, and the screw penetrates through the through hole. According to the utility model, the first internal thread and the second internal thread are arranged on the upper end cover and the lower end cover, the protection block is sleeved on the screw rod, the lower part of the screw rod is screwed and fixed with the lower end cover, and then the rotatable block is screwed and fixed with the upper end cover, so that the whole fixation is realized, and the protection block on the screw rod encloses a square protection cover in a shape of a Chinese character 'Hui', thereby effectively protecting the hydraulic cylinder.

Description

Wear-resistant hydraulic cylinder

Technical Field

The utility model relates to the technical field of oil cylinders, in particular to an anti-abrasion hydraulic oil cylinder.

Background

The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion), and has simple structure and reliable operation. When the anti-abrasion hydraulic cylinder is used for realizing reciprocating motion, a speed reducing device can be omitted, a transmission gap is avoided, the motion is stable, the anti-abrasion hydraulic cylinder is widely applied to hydraulic systems of various machines, most of cylinder bodies of the hydraulic cylinders are the shells of the hydraulic cylinders, the application range of the hydraulic cylinders is wide, the working condition environments are more and more complex, in use, once the cylinder bodies are impacted by external objects, particularly the side edges, the whole hydraulic cylinder is needed after the cylinder bodies are easily damaged, the cost is high, the working efficiency is influenced, the overall protection performance of the hydraulic cylinder is lower in actual use, and therefore, the anti-abrasion hydraulic cylinder has larger limitation in actual use and has an improvable space, so the inventor proposes an anti-abrasion hydraulic cylinder to solve the problem.

In order to prevent the hydraulic cylinder from being impacted by an external object to cause the problem of cylinder body damage, a Chinese patent network (CN 214617290U) discloses a high-strength abrasion-resistant hydraulic cylinder body, a plurality of protection components are arranged on the outer surface of the cylinder body, each protection component comprises symmetrically arranged protection shells, two ends of one protection shell penetrate through fastening bolts, a mounting screw hole for screwing in the fastening bolt is formed in the end face of the other protection shell, a rubber pad is adhered to the surface of the cylinder body at the same angle, the inner wall of the protection shell is extruded and attached to the rubber pad, the circle center of the protection shell and the circle center of the cylinder body are positioned at the same point, and the longitudinal section of the rubber pad is in an isosceles trapezoid structure; according to the hydraulic cylinder, the surface of the cylinder body is protected, and after damage caused by collision occurs, the cylinder body can be replaced locally, so that the protecting shell and the cylinder body can be separated in use, and the protecting capability of the hydraulic cylinder is improved.

This scheme still has some shortages in the application, when external object impact force is great, the thickness of some casings is thin and do not have the cylinder to support, very easily because collide and lead to sunken thereby appear the circumstances that the cylinder body damaged, simultaneously, for better protection hydraulic cylinder, some hydraulic cylinder upper and lower extreme disposes the cylinder cap, consequently, usable cylinder cap designs the abrasionproof and decreases the safety cover, makes it can be better protect hydraulic cylinder, prevents that hydraulic cylinder from receiving the collision, extension hydraulic cylinder's life.

Disclosure of Invention

The utility model discloses an anti-abrasion hydraulic cylinder, which mainly aims to overcome the defects and the shortcomings in the prior art.

The technical scheme adopted by the utility model is as follows:

the utility model provides a wear-resistant hydraulic cylinder, includes cylinder body, cylinder cap and wear-resistant device, the cylinder body inlays to be located in the cylinder cap, the cylinder cap includes upper end cover and lower end cover, the upper end cover with the lower end cover passes through four angle bolt nut adaptation ground connection, the upper end cover with the inboard four sides of lower end cover centre is equipped with first internal thread and second internal thread respectively, wear-resistant device includes screw rod, rotatable piece and protection piece, screw rod upper portion and lower part all are equipped with first external screw thread, rotatable piece upper portion and lower part are equipped with second external screw thread and third internal screw thread respectively, the second external screw thread with first internal screw thread activity connects soon, be equipped with the through-hole in the middle of the protection piece, the screw rod adaptation is worn to establish the through-hole.

Further, two ends of the first external thread are movably screwed with the second internal thread and the third internal thread respectively.

Furthermore, the four protection blocks are all four, the four protection blocks enclose a shape like a Chinese character 'hui', a square protection cover is formed, and the diameter of the square protection cover is smaller than that of the cylinder cover.

Furthermore, rubber pads are arranged at the tail ends of two sides of the protection block and are abutted with bolts at four corners of the upper end cover and the lower end cover.

Further, the rotatable block is in a shape with a narrow upper part and a wide lower part, and the outer surface of the lower part of the rotatable block is of an outer hexagonal nut structure.

Furthermore, the upper part and the lower part of the middle part of one of the protection blocks are respectively provided with an oil inlet and an oil outlet.

As can be seen from the above description of the present utility model, the present utility model has the following advantages compared with the prior art:

according to the utility model, the first internal thread and the second internal thread are arranged between four sides of the upper end cover and the lower end cover, the protection blocks of the anti-wear device are sleeved on the screw rod, then the lower part of the screw rod is screwed and fixed with the second internal thread, and then the rotatable block at the top of the screw rod is rotated to lift the rotatable block upwards and finally screwed and fixed with the upper end cover.

Drawings

Fig. 1 is a schematic top view of the present utility model.

Fig. 2 is a schematic diagram of the front view structure of the present utility model.

FIG. 3 is a schematic diagram of the front view of the connection of the upper end cap, lower end cap, screw and rotatable block of the present utility model.

Fig. 4 is a schematic view of the structure of the rotatable block of the present utility model.

Detailed Description

Specific embodiments of the present utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 4, a wear-resistant hydraulic cylinder comprises a cylinder body 1, a cylinder cover 2 and a wear-resistant device 3, wherein the cylinder body 1 is embedded in the cylinder cover 2, the cylinder cover 2 comprises an upper end cover 21 and a lower end cover 22, the upper end cover 21 and the lower end cover 22 are connected through four corners of bolt and nut in an adapting mode, a first internal thread 23 and a second internal thread 24 are respectively arranged in the middle of four inner sides of the upper end cover 21 and the lower end cover 22, the wear-resistant device 3 comprises a screw 31, a rotatable block 32 and a protective block 33, first external threads 4 are respectively arranged on the upper part and the lower part of the screw 31, a second external thread 5 and a third internal thread 6 are respectively arranged on the upper part and the lower part of the rotatable block 32, the second external thread 5 is movably screwed with the first internal thread 23, a through hole is formed in the middle of the protective block 33, and the screw 31 is adapted to pass through the through hole.

Further, two ends of the first external thread 4 are movably screwed with the second internal thread 24 and the third internal thread 6 respectively.

Furthermore, the number of the protection blocks 33 is four, the four protection blocks 33 are enclosed into a shape like a Chinese character 'hui', so as to form a square protection cover 7, and the diameter of the square protection cover 7 is smaller than that of the cylinder cover 2.

Further, rubber pads 8 are provided at both side ends of the protection block 33, and the rubber pads 8 are abutted with bolts at four corners of the upper end cover 21 and the lower end cover 22.

Further, the rotatable block 32 has a shape with a narrow upper part and a wide lower part, and the outer surface of the lower part of the rotatable block 32 has an outer hexagonal nut structure.

Further, an oil inlet and an oil outlet are respectively provided at the upper and lower portions of the middle of one of the protection blocks 33 (schematic drawing is not labeled due to view angle).

Specific examples:

firstly, the upper cylinder cover 21 and the lower cylinder cover 22 are respectively sleeved on the upper part and the lower part of the cylinder body 1 and are fixed through bolts and nuts, then the screw rod 31 penetrates through a through hole in the middle of the protection block 33, the protection block 33 is sleeved, the first external thread 4 at the lower part of the screw rod 31 and the second internal thread 24 of the lower end cover 22 are screwed and fixed, the four-sided screw rod 31 is operated according to the operation, the four-sided protection block 33 forms a square protection cover 7 in a shape of a Chinese character 'Hui', the hydraulic cylinder is protected, finally, the rotatable block 32 is rotated, the second external thread 5 at the upper part of the rotatable block 32 is screwed with the first internal thread 23 of the upper end cover 21, and meanwhile, the third internal thread 6 at the lower part of the rotatable block 33 is unscrewed from the first external thread 4 of the screw rod 31, so that the rotatable block 33 is lifted upwards, the screw rod 31 and the upper end cover 21 are fixed through the rotatable block 33, and the whole fixing of the square protection cover 7 is realized, and the side edge of the hydraulic cylinder is effectively protected.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the design concept of the present utility model is not limited thereto, and any insubstantial modifications made by the present utility model shall fall within the scope of the present utility model.

Claims

1. An anti-abrasion hydraulic cylinder is characterized in that: including cylinder body, cylinder cap and wear-resisting device, the cylinder body inlays and locates in the cylinder cap, the cylinder cap includes upper end cover and lower extreme cover, the upper end cover with the lower extreme cover is connected through the bolt and nut adaptation in four angles, the upper end cover with the centre of the inboard four sides of lower extreme cover is equipped with first internal thread and second internal thread respectively, wear-resisting device includes screw rod, rotatable piece and protection piece, screw rod upper portion and lower part all are equipped with first external screw thread, rotatable piece upper portion and lower part are equipped with second external screw thread and third internal screw thread respectively, the second external screw thread with first internal screw thread activity connects soon, be equipped with the through-hole in the middle of the protection piece, the screw rod adaptation is worn to establish the through-hole.

2. The wear resistant hydraulic cylinder of claim 1, wherein: and two ends of the first external thread are movably screwed with the second internal thread and the third internal thread respectively.

3. The wear resistant hydraulic cylinder of claim 1, wherein: the protection blocks are four in number, the four protection blocks enclose a shape like a Chinese character 'Hui', a square protection cover is formed, and the diameter of the square protection cover is smaller than that of the cylinder cover.

4. A wear resistant hydraulic ram according to claim 3, wherein: and rubber pads are arranged at the tail ends of two sides of the protection block and are abutted with bolts at four corners of the upper end cover and the lower end cover.

5. The wear resistant hydraulic cylinder of claim 1, wherein: the rotatable block is in a shape with a narrow upper part and a wide lower part, and the outer surface of the lower part of the rotatable block is of an outer hexagonal nut structure.

6. The wear resistant hydraulic cylinder of claim 1, wherein: the upper part and the lower part of the middle of one of the protection blocks are respectively provided with an oil inlet and an oil outlet.