CN214404462U

CN214404462U - Silencing sleeve mounting structure of hydraulic buffer

Info

Publication number: CN214404462U
Application number: CN202120328680.5U
Authority: CN
Inventors: 张君; 张永碧
Original assignee: Wuxi Dishun Machinery Technology Co ltd
Current assignee: Wuxi Dishun Machinery Technology Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-10-15
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses a hydraulic buffer's amortization cover mounting structure, including the hydraulic buffer main part, install the piston rod in the main part, still include amortization cover and the head of being connected with the piston rod that is hit, the top surface integrated into one piece that is hit has protruding piece, the ring channel has been seted up on the outer peripheral face of protruding piece, the bottom surface of amortization cover inwards caves in and forms and protruding piece complex inner cavity, the inner peripheral of inner cavity is to being equipped with flexible annular joint portion, joint portion is located the ring channel, the inside width of ring channel is greater than ring channel notch width. The utility model realizes the fixation of the silencing sleeve and prevents the silencing sleeve from falling off by the mutual abutting of the ring groove and the clamping part; the opening of ring channel is less, can effectively block joint portion, reduces the probability that joint portion drops, improves the firmness of amortization cover installation.

Description

Silencing sleeve mounting structure of hydraulic buffer

Technical Field

The utility model belongs to hydraulic buffer device field especially relates to a hydraulic buffer's amortization cover mounting structure.

Background

The hydraulic buffer buffers and decelerates the object acting on the hydraulic buffer to stop by means of hydraulic damping, and plays a certain protection role. The safety buffer device is suitable for mechanical equipment such as hoisting transportation, elevators, metallurgy, harbor machinery, railway vehicles and the like, and is used for preventing the mechanism from being damaged due to hard collision in the working process.

The head that is collided is usually installed to current hydraulic buffer's tip to install the amortization cover on being collided, nevertheless the amortization cover is comparatively soft usually, when the amortization cover bears the impact, the amortization cover can take place to deform, causes the amortization cover and takes place to become flexible with the position of being connected of head that is collided, and in the long term, the amortization cover drops easily, makes hydraulic buffer lose the function of amortization.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic buffer's amortization cover mounting structure to solve the technical problem that the amortization cover drops easily.

In order to achieve the above object, the present invention provides a mounting structure of a silencing cover for a hydraulic buffer, which comprises:

the utility model provides a hydraulic buffer's amortization cover mounting structure, includes the hydraulic buffer main part, install the piston rod in the main part, still include amortization cover and the head of being hit that is connected with the piston rod, the top surface integrated into one piece that is hit the head has protruding piece, the ring channel has been seted up on the outer peripheral face of protruding piece, the bottom surface of amortization cover is inwards sunken to form with protruding piece complex inner cavity, the inner peripheral face of inner cavity is to being equipped with flexible annular joint portion, joint portion is located the ring channel, the inside width of ring channel is greater than ring channel notch width. Amortization ways is on protruding piece, and joint portion and ring channel joint realize the fixed of amortization cover, and ring channel notch width is less can make the effectual joint portion card owner of ring channel, reduces the probability that joint portion drops, and then reduces the probability that amortization cover drops.

Further, the clamping portion is in interference fit with the annular groove. The clamping portion in interference fit is tightly abutted against the annular groove, so that the friction force between the clamping portion and the annular groove is increased, and the probability of dropping of the silencing sleeve is further reduced.

Furthermore, a plurality of through holes are formed in the collided head along the axis direction of the piston rod, ejector pins are inserted into the through holes, the length of each ejector pin is larger than that of each through hole, a gasket connected with the piston rod is abutted against the bottom surface of the collided head, and each through hole is covered by each gasket. The gasket is fixed between the piston rod and the collided head, so that the ejector pin can be fixed in the through hole by the gasket, and the ejector pin props against the clamping part, thereby further realizing the fixation of the silencing sleeve.

Specifically, a threaded hole is formed in the collided head, a stud fixed with the top end of the piston rod is connected to the threaded hole in a threaded mode, an opening is formed in the center of the gasket, the stud penetrates through the opening, and the gasket is clamped between the collided head and the piston rod. The threaded hole is connected with the threaded stud, so that the convenience of disassembling and assembling the piston column and the collided head is improved, and the convenience of disassembling and assembling the gasket is further improved.

In particular, irregular concave-convex lines are arranged on the inner wall of the annular groove. The coefficient of friction of concave convex line can increase the ring channel inner wall improves the reliability that joint portion and ring channel are connected, prevents effectively that the amortization cover from droing.

The utility model discloses a hydraulic buffer's amortization cover mounting structure has following advantage:

1. the annular groove is in abutting joint with the clamping part, so that the silencing sleeve is fixed and prevented from falling off;

2. the opening of ring channel is less, can effectively block joint portion, reduces the probability that joint portion drops, improves the firmness of amortization cover installation.

Drawings

Fig. 1 is a schematic structural view of a mounting structure of a noise damping sleeve of a hydraulic shock absorber according to the present invention;

FIG. 2 is a schematic view of the connection structure of the crashing head and the silencing cover of the present invention;

FIG. 3 is a schematic structural view of the head of the present invention;

fig. 4 is a schematic structural view of the silencing cover of the present invention.

The notation in the figure is: 1. a silencing sleeve; 2. a collided head; 3. a piston rod; 4. a main body; 5. a threaded hole; 6. a gasket; 7. a thimble; 8. a stud; 9. an annular groove; 10. a through hole; 11. a clamping part; 12. a raised block; 13. an inner concave cavity.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the mounting structure of the silencing cover of the hydraulic buffer of the present invention is described in detail below with reference to the accompanying drawings.

As shown in fig. 1-4, a silencing cover mounting structure of hydraulic buffer, including hydraulic buffer main part 4, install piston rod 3 in the main part 4, still include silencing cover 1 and the head 2 that receives of being connected with piston rod 3, the top surface integrated into one piece of head 2 that receives has protruding piece 12, annular groove 9 has been seted up on the outer peripheral face of protruding piece 12, the inside sunken inner cavity 13 that forms and protruding piece 12 complex of bottom surface of silencing cover 1, the inner peripheral face of inner cavity 13 is equipped with flexible annular joint portion 11, joint portion 11 is located annular groove 9, the inside width of annular groove 9 is greater than annular groove 9 notch width. Amortization cover 1 cover is on protruding piece 12, and joint portion 11 and ring channel 9 joint realize fixed to amortization cover 1, and ring channel 9 notch width is less can make ring channel 9 effectual with joint portion card owner 11, reduce the probability that joint portion 11 drops, and then reduce the probability that amortization cover 1 drops.

Of course, for the frictional force between increase joint portion 11 and the ring channel 9, joint portion 11 and ring channel 9 interference fit, be equipped with irregular concave-convex line on the inner wall of ring channel 9.

In practical use, the collided head 2 is provided with a plurality of through holes 10 along the axial direction of the piston rod 3, the through holes 10 are respectively inserted with a thimble 7, the length of the thimble 7 is greater than that of the through hole 10, the bottom surface of the collided head 2 abuts against a gasket 6 connected with the piston rod 3, and the gasket 6 covers the through holes 10. The gasket 6 is fixed between the piston rod 3 and the collided head 2, so that the thimble 7 can be fixed in the through hole 10 by the gasket 6, the thimble 7 props against the clamping part 11, and the fixing of the silencing sleeve 1 can be further realized

For making the gasket 6 installation convenient, set up threaded hole 5 on the head 2 that collides, 5 threaded connection in threaded hole have with the fixed double-screw bolt 8 in 3 tops of piston rod, the center department of gasket 6 is equipped with the trompil, double-screw bolt 8 passes the trompil, 6 joints of gasket are in between head 2 and piston rod 3 that collides.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. The utility model provides a amortization cover mounting structure of hydraulic buffer, includes hydraulic buffer main part (4), install piston rod (3) in main part (4), its characterized in that still includes amortization cover (1) and collided head (2) be connected with piston rod (3), the top surface integrated into one piece of collided head (2) has protruding piece (12), ring channel (9) have been seted up on the outer peripheral face of protruding piece (12), the inside sunken inner cavity (13) that form and protruding piece (12) complex in bottom surface of amortization cover (1), the inner peripheral face of inner cavity (13) is to being equipped with flexible annular joint portion (11), joint portion (11) are located ring channel (9), ring channel (9) inside width is greater than ring channel (9) notch width.

2. The silencing cover mounting structure of a hydraulic shock absorber as recited in claim 1, wherein the snap-fit portion (11) is interference-fitted with the annular groove (9).

3. The silencing cover mounting structure of the hydraulic buffer according to claim 1, wherein the collided head (2) is provided with a plurality of through holes (10) along the axial direction of the piston rod (3), each through hole (10) is internally inserted with a thimble (7), the length of each thimble (7) is greater than that of each through hole (10), the bottom surface of the collided head (2) abuts against a gasket (6) connected with the piston rod (3), and each through hole (10) is covered by the gasket (6).

4. The silencing cover mounting structure of the hydraulic buffer according to claim 3, wherein the collided head (2) is provided with a threaded hole (5), the threaded hole (5) is internally connected with a stud (8) fixed with the top end of the piston rod (3), the center of the gasket (6) is provided with an opening, the stud (8) penetrates through the opening, and the gasket (6) is clamped between the collided head (2) and the piston rod (3).

5. The silencing cover mounting structure of the hydraulic buffer as recited in claim 2, wherein the inner wall of the annular groove (9) is provided with irregular concave-convex lines.