CN217327931U

CN217327931U - Buffer structure of hydraulic press piston rod

Info

Publication number: CN217327931U
Application number: CN202220351256.7U
Authority: CN
Inventors: 李嘉琪
Original assignee: Foshan Nanhai Jingneng Machinery Co ltd
Current assignee: Foshan Nanhai Jingneng Machinery Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-08-30
Anticipated expiration: 2032-02-21

Abstract

The utility model discloses a buffer structure for a piston rod of a hydraulic machine, which comprises a buffer assembly mounted on a support plate. The buffer assembly is composed of a base, a shock absorber and an elastic contact assembly. The shock absorber is arranged on the base. On the seat, the elastic contact assembly is installed on the upper end surface of the shock absorption assembly, that is, the base is detachably connected to the support plate, and the shock absorption assembly and the elastic contact assembly can achieve double shock absorption when buffering is realized. buffer. The detachable connection can realize the maintenance and replacement of parts after long-term use.

Description

Buffer structure of hydraulic press piston rod

Technical Field

The utility model relates to a hydraulic press field, in particular to buffer structure of hydraulic press piston rod.

Background

Chinese utility model patent document, publication number are CN 210859415U, disclose a hydraulic press with piston rod structure that has buffer function, it relates to hydraulic press auxiliary technology field. The utility model provides a hydraulic press is with piston rod structure that has buffer function it contains the pneumatic cylinder, the backup pad, the through-hole, the blotter, the body of rod, the piston, the link, fixing bolt, the nut, the liquid level appearance, buffer spring, pneumatic cylinder bottom fixed connection backup pad, be equipped with the through-hole in the backup pad, the inboard fixed blotter that bonds of through-hole, the body of rod is connected to the pneumatic cylinder below, the piston is connected to body of rod below, the piston passes through the link and connects, fixing bolt and nut threaded connection, the surface inlays dress liquid level appearance in the piston front side, the link is equipped with buffer spring with body of rod outside. After the technical scheme is adopted, the beneficial effects of the utility model are that: its structural design is reasonable, has buffer function, has prolonged piston rod structure's life, guarantees piston rod's normal work.

Based on the aforesaid, current buffer structure bonds fixed blotter in the backup pad, and the effect of this kind of shock attenuation buffering is not ideal, moreover through gluing this kind of fixed mode, is difficult to follow the backup pad and dismantles the change after the blotter damages in the future.

Therefore, it is desirable to provide a buffering structure for a piston rod of a hydraulic machine to solve this problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a buffer structure of hydraulic press piston rod.

In order to achieve the above purpose, the utility model adopts the following scheme:

the utility model provides a buffer structure of hydraulic press piston rod, is including installing the buffering subassembly in the backup pad, the buffering subassembly comprises base, damper and elastic contact subassembly, damper sets up on the base, the elastic contact unit mount is in on damper's the up end.

Preferably, the base comprises an upper shell and a lower shell which are connected with each other, openings are formed in the upper end of the lower shell and in the upper end of the upper shell, openings are formed in the upper end and the lower end of the lower shell, the damping assembly comprises a mounting seat, a plurality of guide cylinders are uniformly distributed on the lower end face of the mounting seat along the axis of the mounting seat, guide columns are arranged on the lower shell below the guide cylinders, the guide columns are connected in the guide cylinders in an inserted mode, and a first damping spring is sleeved on the outer sides of the guide columns and the guide cylinders together.

Preferably, an annular groove is formed in the upper end face of the mounting base, the elastic contact assembly comprises a connecting ring, an annular rubber mat arranged on the connecting ring and a plurality of elastic protrusions arranged on the annular rubber mat, and the connecting ring is fixedly mounted in the annular groove.

Preferably, a guide ring extending downwards is arranged on the lower end face of the mounting seat, the guide ring penetrates through the opening of the upper shell and is inserted downwards, a limiting block is arranged on the outer wall of the guide ring, and the limiting block is positioned right below the top face in the upper shell.

Preferably, the guide ring is provided with an upwardly recessed annular groove, and a second spring is provided in the annular groove.

Preferably, the lower housing and the mounting seat are provided with shaft holes at the shaft center.

To sum up, the utility model discloses for its beneficial effect of prior art is:

the utility model discloses a damper sets up on the base, the elastic contact unit mount is in on damper's the up end, also namely, the connection can be dismantled in the backup pad to the base, and when realizing the buffering, damper, elastic contact unit can realize dual shock attenuation buffering. And the detachable connection can realize maintenance and replacement of parts after long-term use.

Drawings

Fig. 1 is a schematic view of the installation and use state of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is one of the schematic sectional structural views of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;

fig. 5 is a second schematic cross-sectional view of the present invention.

Detailed Description

The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:

as shown in fig. 1 to 5, a buffering structure of a piston rod of a hydraulic machine comprises a buffering component 30 installed on a support plate 20, wherein the buffering component 30 is composed of a base 310, a shock absorbing component 320 and an elastic contact component 330, the shock absorbing component 320 is arranged on the base 310, the elastic contact component 330 is installed on the upper end surface of the shock absorbing component 320, that is, the base is detachably connected to the support plate, and when buffering is realized, the shock absorbing component and the elastic contact component can realize double shock absorption and buffering. And the detachable connection can realize maintenance and replacement of parts after long-term use.

Referring to fig. 3 and 4, the base 310 is composed of an upper case 311 and a lower case 312 which are connected to each other, the upper end opening of the lower shell 312 and the upper and lower end openings of the upper shell 311 are arranged, the shock absorbing component 320 comprises an installation seat 324, a plurality of guide cylinders 323 are uniformly distributed on the lower end surface of the installation seat 324 along the axis thereof, a guide post 313 is arranged on the lower shell 312 below the guide cylinder 323, the guide post 313 is inserted in the guide cylinder 323, a first damping spring 500 is commonly fitted to the outer sides of the guide post 313 and the guide cylinder 323, that is, when the hydraulic cylinder 10 drives the piston rod 110 and the piston 120 to return downwards, after the piston 120 contacts with the elastic contact component, the first damping spring 500 is compressed to realize buffering, therefore, the piston rod is protected, the friction damage of the piston rod in the working process is reduced, and the service life of the piston rod structure is prolonged.

Furthermore, go up the casing and pass through threaded connection or all be equipped with the screw hole on both with lower casing, turn round the bolt and realize fixing.

Further, go up the casing and pass through bolted connection with backup pad 20 or all be equipped with the screw hole on both, turn round the bolt and realize fixing, make things convenient for later stage to dismantle the maintenance, it is required to accord with the use.

Referring to fig. 3, an annular groove is formed on the upper end surface of the mounting base 324, the elastic contact assembly 330 is composed of a connecting ring 331, an annular rubber pad 333 disposed on the connecting ring 331, and a plurality of elastic protrusions 332 disposed on the annular rubber pad 333, and the connecting ring 331 is fixedly mounted in the annular groove.

The connecting ring 331 is connected with the annular groove through a bolt, the connecting ring 331 is hexagonal in shape, a special tool can be conveniently used for twisting, the elastic contact assembly 330 can be conveniently disassembled or assembled, the annular rubber pad 333 and the elastic protrusion 332 can be replaced after being damaged, the structure is simple, and the use requirement is met.

Referring to fig. 3, a guide ring 321 extending downward is disposed on a lower end surface of the mounting base 324, the guide ring 321 penetrates through an opening of the upper housing 311 and is inserted downward, a limit block 600 is mounted on an outer wall of the guide ring 321, the limit block 600 is located right below an inner top surface of the upper housing 311, the guide ring 321 is provided with an upward-concave annular groove, a second spring 400 is disposed in the annular groove, the guide ring 321 can achieve longitudinal guiding, and the second spring 400 can achieve further buffering, so that a better protection effect is provided.

Shaft holes are formed in the axial center of the lower shell 312 and the axial center of the mounting seat 324.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a buffer structure of hydraulic press piston rod which characterized in that: including installing buffering subassembly (30) on backup pad (20), buffering subassembly (30) comprises base (310), shock-absorbing component (320) and elastic contact subassembly (330), shock-absorbing component (320) set up on base (310), elastic contact subassembly (330) is installed on the up end of shock-absorbing component (320).

2. The cushioning structure of a hydraulic machine piston rod according to claim 1, characterized in that: the damping device is characterized in that the base (310) is formed by mutually connecting an upper shell (311) and a lower shell (312), an upper end opening of the lower shell (312), an upper end opening and a lower end opening of the upper shell (311) are arranged, the damping component (320) comprises a mounting seat (324), a plurality of guide cylinders (323) are uniformly distributed on the lower end face of the mounting seat (324) along the axis of the mounting seat, guide columns (313) are arranged on the lower shell (312) below the guide cylinders (323), the guide columns (313) are inserted into the guide cylinders (323), and a first damping spring (500) is sleeved on the outer sides of the guide columns (313) and the guide cylinders (323) together.

3. The cushioning structure of a hydraulic machine piston rod according to claim 2, characterized in that: be equipped with annular groove on the up end of mount pad (324), elastic contact subassembly (330) is in by go-between (331), ring type cushion (333) and the setting of setting on go-between (331) a plurality of elasticity archs (332) on ring type cushion (333) are constituteed, go-between (331) fixed mounting be in the annular groove.

4. The cushioning structure of a hydraulic machine piston rod according to claim 2, characterized in that: the lower terminal surface of mount pad (324) is equipped with downwardly extending's guide ring (321), guide ring (321) pass the opening of last casing (311) and peg graft downwards install stopper (600) on the outer wall of guide ring (321), stopper (600) are located under the top surface in last casing (311).

5. The cushioning structure of a hydraulic machine piston rod according to claim 4, characterized in that: the guide ring (321) is provided with an upward sunken annular groove, and a second spring (400) is arranged in the annular groove.

6. The cushioning structure of a hydraulic machine piston rod according to any one of claims 2 to 5, characterized in that: the axle center of lower casing (312) and the axle center of mount pad (324) all are equipped with the shaft hole.