CN213436933U

CN213436933U - Damping device for electro-hydraulic hammer

Info

Publication number: CN213436933U
Application number: CN202022362018.XU
Authority: CN
Inventors: 蒋新桥
Original assignee: Hubei Huihuang Machinery Manufacturing Co ltd
Current assignee: Hubei Huihuang Machinery Manufacturing Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-15
Anticipated expiration: 2030-10-21

Abstract

The utility model provides a damping device for electro-hydraulic hammer, including the shock attenuation shell, the inside of shock attenuation shell is provided with the square hole, and the square hole cup joints on the hammer head, be provided with the screw hole that runs through to the square hole perpendicularly on the shock attenuation shell outer wall, still be provided with the attenuator on the shock attenuation shell and fall the groove of making an uproar, the shock attenuation shell passes through the bolt in the threaded hole and links to each other with the tup is fixed, advances the electro-hydraulic hammer with the shock attenuation shell cover, fixes it with the bolt, and when electro-hydraulic hammer during operation, the attenuator with fall the groove of making an uproar and play a role, the utility model discloses simple structure uses the scene extensively and can realize good shock attenuation and fall the noise.

Description

Damping device for electro-hydraulic hammer

Technical Field

The utility model relates to a vibration/noise reduction field especially relates to a damping device for electro-hydraulic hammer.

Background

The forging is a processing method for applying pressure to a metal blank by using a forging machine to enable the metal blank to generate plastic deformation to obtain a forging with certain mechanical property, certain shape and certain size, and an electric hammer is used as an auxiliary device in the forging process and plays an indispensable role, the electric hammer mainly converts electric energy into gravitational potential energy to strike the forging, so that the defects of as-cast loosening and the like generated in the smelting process of metal are eliminated, the microstructure is optimized, meanwhile, due to the fact that a complete metal streamline is stored, the mechanical property of the forging is generally superior to that of a casting made of the same material, but the electric liquid hammer can generate great vibration in the working process, the noise is high, the service life of the whole equipment is shortened, and although the industry technology is continuously improved, the problem cannot be well solved all the time.

In order to solve the problems, a damping device which is simple in structure, good in damping effect, capable of reducing noise and wide in use scene needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem among the prior art, provided a damping device for electro-hydraulic hammer, simple structure, shock attenuation are respond well, can fall and make an uproar, use the scene extensive.

In order to solve the technical problem, the utility model discloses specifically adopt following technical scheme:

a damping device for an electro-hydraulic hammer comprises a damping shell, wherein the damping shell is of a cuboid structure, and a square hole is formed in the damping shell; be provided with the screw hole that runs through to the square hole perpendicularly on the shock attenuation shell outer wall, the square hole includes the square hole inner wall, be provided with on the square hole inner wall and fall the outside blind hole of groove and perpendicular square hole inner wall of making an uproar, set up the attenuator in the blind hole, the one end and the blind hole fixed connection of attenuator, the other end stretch into inside the square hole, blind hole evenly distributed is around the square hole inner wall.

Compared with the prior art, the utility model discloses following beneficial effect has:

through the shock attenuation shell of being attached at electric liquid tup outer wall with damping device design, make the damping device structure become simple, meanwhile, the size of shock attenuation shell can be implemented absorbing apparatus as required and design, and through bolt-up between shock attenuation shell and the apparatus, can take at any time and maintain, so damping device's suitability is high, the use scene is also very extensive, in addition, be provided with the attenuator between shock attenuation shell and the square hole and fall the groove of making an uproar, piston and damping medium silicon oil that can be reciprocating motion in the attenuator can dissipate the vibrations energy that the electric liquid hammer during operation produced through the damping, thereby make damping device realize good shock attenuation effect, and fall and make an uproar.

The above advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a cross-sectional view in embodiment 1 of the present invention;

FIG. 2 is a schematic view of the connection between the shock absorber and the hammer head of the present invention;

fig. 3 is a schematic view of a buffer accumulator in embodiment 2 of the present invention.

In the figure: 1. a shock-absorbing shell; 2. a square hole; 21. the inner wall of the square hole; 22. a noise reduction groove; 23. a noise reduction spacer plate; 3. a threaded hole; 4. a damper; 41. a piston cylinder; 42. a cylinder barrel; 43. a piston tail cylinder; 44. a yielding groove; 45. a sealing block; 46. a piston; 47. a buffer block; 5. blind holes; 6. a hammer head; 7. a hoisting ring; 8. a stopper; 9. an inflation hole; 10. an inflation valve; 11. a buffer accumulator; 111. an elastic diaphragm; 112. compressing nitrogen; 12. an inflation tube; 13. the inner cavity is closed.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, a damping device for electro-hydraulic hammer, including shock attenuation shell 1, shock attenuation shell 1 is the cuboid structure, the inside of shock attenuation shell 1 is provided with square hole 2, be provided with the screw hole 3 that runs through to square hole 2 perpendicularly on the shock attenuation shell 1 outer wall, square hole 2 includes square hole inner wall 21, be provided with on the square hole inner wall 21 and fall groove 22 and the outside blind hole 5 of perpendicular square hole inner wall 21, set up attenuator 4 in the blind hole 5, the one end and the blind hole 5 fixed connection of attenuator 4, the other end stretches into inside square hole 2, realizes stabilizing in order to can evenly exert pressure to

tup

6, 5 evenly distributed of blind hole is around square hole inner wall 21.

The utility model discloses an in embodiment 1, as shown in FIG. 1, it is provided with the baffle 23 of making an uproar to fall in the groove 22 of making an uproar, fall the groove 22 of making an uproar and be located the axis of square hole inner wall 21,

attenuator

4 and 3 symmetric distributions of screw hole are in the both sides of falling the groove 22 of making an uproar, in order to guarantee the normal use of attenuator 4, the internal diameter and the piston tail 43 external diameter phase-match of recess 44 of stepping down, piston tail 43 is the cuboid structure and when being reciprocating motion promptly, and all have sufficient clearance all around with the cell body inside of recess 44 of stepping down, the bottom of recess 44 of stepping down and the bottom fixed connection of blind hole 5.

As shown in fig. 1, the damper 4 includes a piston cylinder 41, a cylinder 42, a piston tail 43 and a relief groove 44, the abdicating groove 44 is positioned at one end of the blind hole 5 close to the outer surface of the shock absorption shell 1, the cylinder 42 is fixed in the blind hole 5, the piston cylinder 41 is arranged in the cylinder 42, the piston 46 is arranged on the piston cylinder 41, the stop block 8 is arranged at one end of the cylinder 42 close to the square hole 2, for limiting the range of motion of the piston, the cylinder 42 is provided with a sealing block 45 at one end adjacent to the abdicating groove 44, the damping cylinder is used for ensuring that damping medium silicon oil does not overflow, a buffer block 47 is further arranged at one end close to the sealing block 45 and used for relieving the shock impact of the hammer 6 on the cylinder 42, the piston 46 slides in the cylinder 42 and forms a sealing space with the sealing block 45, two ends of the piston cylinder 41 extend out of the cylinder 42 and are connected with the piston tail post 43 at one end of the abdicating groove 44, and the stop block 8 is fixedly connected with the inner wall of the blind hole 5.

In order to enable the piston tail column 43 not to touch the bottom of the abdicating groove 44 when reciprocating, the device is damaged, the maximum stroke of the piston tail column 43 on the piston column 41 is only one fifth of the depth of the abdicating groove 44, and the depth of the abdicating groove 44 is one third of the length of the piston column 41, thereby further ensuring the effectiveness of the abdicating space.

As shown in fig. 1, the head of the piston cylinder 41 is exposed out of the cylinder 42 and points to the inside of the square hole 2, and in addition, the two sides of the piston cylinder 41 are both provided with pistons 46 and attached to the inner wall of the cylinder 42, and when the piston cylinder 41 reciprocates, the pistons 46 move together, so that the damping medium silicone oil filled in the cylinder 42 can be fully utilized, and a good damping effect is further achieved.

As shown in fig. 1 and 2, except that the fixed connection between the shock-absorbing shell 1 and the hammer head 6 is a bolt connection mode, the fixed connection of the other parts is welded connection.

As shown in fig. 1-2, in this embodiment 1, the hammer head 6 of the electro-hydraulic hammer is partially inserted into the square hole 2 of the damping shell 1, at this time, the outer wall of the hammer head 6 contacts with the head of the piston cylinder 41, a bolt is placed into the threaded hole 3, so that the damping shell 1 is fastened to the outer wall of the hammer head 6, the head of the piston cylinder 41 is further retracted into the cylinder 42, but still partially exposed, to help the bolt to perform secondary fixing on the electro-hydraulic hammer, when the electro-hydraulic hammer is started, the suspension ring 7 is connected to the power transmission component, as the suspension ring 7 moves up and down, the vibration around the hammer head 6 connected to the suspension ring 7 is transmitted to the head of the piston cylinder 41, so that the piston cylinder 41 and the piston tail 43 move towards the yielding groove 44, and the piston 46 pushes the damping medium silicone oil, so as to dissipate the vibration energy by the damping provided by the viscosity of the silicone oil, and the noise reduction partition 23 is disposed in, the noise reduction partition plate 23 is a polyester fiber sound absorption plate and can absorb partial noise generated when the electro-hydraulic hammer works, so that the noise reduction effect is achieved.

Damping device in this embodiment 1 is attached damping shell 1 at 6 outer walls of tup, moreover, the steam generator is simple in structure, can take at any time, damping shell 1's size of a dimension can realize that the absorbing apparatus designs as required, the suitability is high, can use the scene extensively, because the horizontal vibrations that tup 6 brought in work influence the machined surface quality of forging great, produce the line of shaking easily, and this damping device makes the horizontal vibrations that the electrohydraulic hammer during operation brought can be comprehensive absorption, so have good shock attenuation effect, in addition, baffle 23 of making an uproar has realized effectively making an uproar through making an uproar falls in the groove 22 of making an uproar.

As shown in fig. 3, in embodiment 2 of the present invention, an inflation hole 9 is formed in the shock absorbing shell 1, the inflation hole 9 is communicated with a closed inner cavity 13 inside the cylinder 42, an inflation tube 12 is connected to the outside of the inflation hole 9 and is connected to the buffer accumulator 11 through an inflation valve 10, the buffer accumulator 11 is set to be spherical, an elastic diaphragm 111 is arranged inside the spherical, the elastic diaphragm 111 is used for nitrogen isolation and sealing, the buffer accumulator 11 is filled with compressed nitrogen 112, the compressed nitrogen 112 is located in a closed space formed by the elastic diaphragm 111, the inner wall of the buffer accumulator 11 and the inflation valve 10, when the electrohydraulic hammer works, the piston 46 moves in the closed inner cavity 13, the pressure of the closed space rises, the compressed nitrogen 112 is compressed, the elastic diaphragm 111 deforms, the energy caused by the vibration is dissolved through the elastic diaphragm 111 and the compressed nitrogen 112, when the pressure drops, the compressed nitrogen 112 expands and the piston 46 resets, and when the electro-hydraulic hammer is operated again, the above steps are repeated and the cycle is repeated.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A damping device for an electro-hydraulic hammer, characterized by: the damping device comprises a damping shell (1), wherein the damping shell (1) is of a cuboid structure, and a square hole (2) is formed in the damping shell (1); be provided with threaded hole (3) that run through to square hole (2) perpendicularly on shock attenuation shell (1) outer wall, square hole (2) include square hole inner wall (21), be provided with on square hole inner wall (21) and fall groove (22) and perpendicular square hole inner wall (21) outside blind hole (5), set up attenuator (4) in blind hole (5), the one end and blind hole (5) fixed connection of attenuator (4), the other end stretch into inside square hole (2), blind hole (5) evenly distributed is around square hole inner wall (21).

2. A damping device for an electro-hydraulic hammer as set forth in claim 1, wherein: a noise reduction partition plate (23) is arranged in the noise reduction groove (22), the noise reduction groove (22) is located on the central axis of the inner wall (21) of the square hole, and the dampers (4) and the threaded holes (3) are symmetrically distributed on two sides of the noise reduction groove (22).

3. A damping device for an electro-hydraulic hammer as set forth in claim 1, wherein: the damper (4) comprises a piston cylinder (41), a cylinder barrel (42), a piston tail cylinder (43) and an abdicating groove (44), the abdicating groove (44) is positioned at one end of the blind hole (5) close to the outer surface of the damping shell (1), the cylinder barrel (42) is fixed inside the blind hole (5), the piston cylinder (41) is arranged inside the cylinder barrel (42), a piston (46) is arranged on the piston cylinder (41), a stop block (8) is arranged at one end of the cylinder barrel (42) close to a square hole, a sealing block (45) is arranged at one end of the cylinder barrel (42) close to the abdicating groove (44), a buffer block (47) is further arranged at one end close to the sealing block (45), the piston (46) slides inside the cylinder barrel (42) and forms a sealing space with the sealing block (45), the two ends of the piston cylinder (41) extend out of the cylinder barrel (42) and are connected with the piston tail cylinder barrel, the stop block (8) is fixedly connected with the inner wall of the blind hole (5).

4. A damping device for an electro-hydraulic hammer as set forth in claim 3, wherein: the inner diameter of the abdicating groove (44) is matched with the outer diameter of the piston tail column (43), and the bottom of the abdicating groove (44) is fixedly connected with the bottom of the blind hole (5).

5. A damping device for an electro-hydraulic hammer as set forth in claim 3, wherein: the depth of the abdicating groove (44) is one third of the length of the piston cylinder (41).

6. A damping device for an electro-hydraulic hammer as set forth in claim 3, wherein: be provided with on shock attenuation shell (1) and aerify hole (9), aerify hole (9) and communicate to inside closed inner chamber (13) of cylinder (42), aerify hole (9) external connection have gas tube (12) and be connected with buffering energy storage ware (11) through gas charging valve (10), buffering energy storage ware (11) set up to spherical, and spherical inside sets up elastic diaphragm (111), buffering energy storage ware (11) inside is full of compressed nitrogen gas (112).