CN212052746U

CN212052746U - Buffer gear of hydraulic hammer

Info

Publication number: CN212052746U
Application number: CN202020402427.5U
Authority: CN
Inventors: 徐客
Original assignee: Wuxi Xinren General Machinery Co ltd
Current assignee: Wuxi Xinren General Machinery Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-01
Anticipated expiration: 2030-03-25

Abstract

The utility model relates to a buffer gear of hydraulic hammer, it sets up in the junction of hydraulic hammer block and pile cap, is equipped with the hydraulic hammer core that is used for the pile in the hammer block, is equipped with the anvil block that is used for bearing the hammering of hydraulic hammer core in the pile cap, it includes the annular limiting plate that sets up between hydraulic hammer block and pile cap, the annular bolster that is used for buffering the anvil block vibration and the strike pad that is used for reducing the vibration of hydraulic hammer core, the annular bolster cover is established on the anvil block, the annular bolster top is fixedly connected with the bottom of limiting plate; a supporting block is connected between the annular buffer piece and the anvil block, and the top of the supporting block is abutted against the bottom of the annular buffer piece; the striking pad is positioned on the top of the anvil and fixedly connected with the anvil. The utility model discloses a strike pad and annular bolster can cushion the vibration that hydraulic hammer core hammering anvil block back anvil block and hydraulic hammer core produced, reduce the harm of vibration ripples to hydraulic hammer body and pile cap, and annular bolster and strike pad cooperation can reach the effect that improves the life of hydraulic hammer.

Description

Buffer gear of hydraulic hammer

Technical Field

The utility model belongs to the technical field of the technique of hydraulic hammer and specifically relates to a buffer gear of hydraulic hammer is related to.

Background

In the building construction process, in order to make the building foundation firm, often need use pile foundation construction equipment, pile foundation construction equipment among the prior art mainly promotes the hammer core to certain height through hydraulic means and releases fast, stores sufficient gravitational potential energy for the pile driving after, directly acts on the anvil block or pile cap of hydraulic hammer in the following mode of falling impact, through the direct action of hammer core and anvil block, does work to the target pile body, smashes into ground depths with the stake of materials such as stake or stone pile. Because the acting force of the hydraulic hammer core on the seat is very large, the transmission time is very short, the anvil block is easy to vibrate, and if the anvil block is transmitted to the hydraulic hammer body and the pile cap, the hydraulic hammer body and the pile cap are easy to be damaged, and the service life of the hydraulic hammer is further shortened.

Chinese patent with publication number CN105113507A discloses a hydraulic pile hammer, including pile hammer drive arrangement, be equipped with the hydro-cylinder in the pile hammer drive arrangement, the hydro-cylinder is connected with the pile hammer, the pile hammer is connected with hitting power transmission, be equipped with the pad in the hitting power transmission, the other resilience blotter that is equipped with of pad, pad one end is connected with the cushion layer, the cushion layer is connected with the pile cap, the pile cap is equipped with one end and is equipped with the stake.

When piling operation in the above-mentioned scheme, pile hammer whereabouts hammering cushions through the percussion pad on the percussion pad, and then reduces the vibration of pile hammer, but the anvil block in the pile cap receives the hammering back of pile hammer and equally can go out the vibration, and the vibration ripples can be transmitted for the hammer block through the pile cap, causes the damage to pile cap and hammer block easily, influences the life of hydraulic hammer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a buffer gear of hydraulic hammer, it can slow down the vibration that the anvil block received production behind the hammering of hydraulic hammer body, reduces the harm of vibration ripples to hydraulic hammer body and pile cap, reaches the effect that improves the life of hydraulic hammer.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a buffer mechanism of a hydraulic hammer is arranged at the joint of a hydraulic hammer body and a pile cap, a hydraulic hammer core for piling is arranged in the hammer body, an anvil block for bearing the hammering of the hydraulic hammer core is arranged in the pile cap, the buffer mechanism comprises an annular limiting plate, an annular buffer and a strike pad, wherein the annular limiting plate is arranged between the hydraulic hammer body and the pile cap, the annular buffer is used for buffering the vibration of the anvil block, the strike pad is used for reducing the vibration of the hydraulic hammer core, the limiting plate is detachably connected with the hydraulic hammer body and the pile cap, and the inner aperture of the limiting plate is smaller than that of the hydraulic hammer body; the annular buffer piece is sleeved on the anvil block, and the top of the annular buffer piece is fixedly connected with the bottom of the limiting plate; a supporting block is connected between the annular buffer piece and the anvil block, and the top of the supporting block is fixedly connected with the bottom of the annular buffer piece; the striking pad is positioned at the top of the anvil and fixedly connected with the anvil.

Through adopting above-mentioned technical scheme, when carrying out the pile operation, the pile cap cover makes the bottom of anvil block and the top butt of stake on the stake, and hydraulic hammer core carries out the hammering to the anvil block along hydraulic hammer body whereabouts, and then reaches the operation of driving into ground with the stake. Strike on the strike pad at the anvil top after hydraulic hammer core falls, the strike pad cushions hydraulic hammer core this moment and has reduced, and then has reduced the vibration of hydraulic hammer core, and then has reduced the damage to the hydraulic hammer body. And annular bolster provides the buffering space for between hydraulic hammer block and the hydraulic hammer anvil seat, plays the absorbing action to the vibration that produces, and the vibration that the anvil block produced after buffering hydraulic hammer core hammering reduces the harm of vibration wave to hydraulic hammer block and pile cap, and annular bolster and strike pad cooperation can reach the effect that improves the life of hydraulic hammer.

The present invention may be further configured in a preferred embodiment as: the bottom of the supporting block is provided with an inclined plane, and the inclined plane is attached to the outer side face of the anvil block.

Through adopting above-mentioned technical scheme, the side surface laminating of inclined plane and anvil can keep the in close contact between anvil and the cushion socket, has improved the absorbing reliability.

The present invention may be further configured in a preferred embodiment as: the annular buffer piece comprises three annular plates which are stacked, and annular rubber pads are arranged between the adjacent annular plates.

Through adopting above-mentioned technical scheme, the rubber pad has good shock-absorbing capacity, and the annular plate can strengthen the bulk strength of annular bolster, protects the rubber pad, and the annular bolster that annular plate and rubber pad combination can make is durable and the fine vibration that weakens the anvil block of ability, reduces the harm of vibration wave to hydraulic hammer block and pile cap.

The present invention may be further configured in a preferred embodiment as: the top surface and the bottom surface of the rubber pad are both provided with friction increasing grains for increasing the friction between the rubber pad and the annular plate.

Through adopting above-mentioned technical scheme, the setting that increases the line of rubbing has effectively increased the frictional force between rubber pad and the annular slab, promotes the steadiness that rubber pad and annular slab are connected.

The present invention may be further configured in a preferred embodiment as: the striking pad is a rubber pad.

Through adopting above-mentioned technical scheme, the rubber pad has good shock-absorbing capacity, hits the strike pad of hitting at the anvil top after hydraulic hammer core falls, and the strike pad cushions hydraulic hammer core this moment and has reduced, and then has reduced the vibration of hydraulic hammer core, and then has reduced the damage to the hydraulic hammer body, promotes hydraulic hammer's life.

The present invention may be further configured in a preferred embodiment as: the rubber pad comprises an inorganic fiber layer and two rubber layers, wherein the inorganic fiber layer is used for enhancing the tensile strength of the rubber pad, and the inorganic fiber layer is positioned between the two rubber layers.

Through adopting above-mentioned technical scheme, the rubber layer has good shock-absorbing capacity, can ensure that annular bolster and strike pad can effectively slow down the vibration of anvil and hydraulic hammer core, promotes hydraulic hammer's life. The inorganic fiber layer strengthens the tensile strength of the rubber layer, effectively prevents the rubber layer from deforming in the pressing process, and further effectively prolongs the service life of the product.

The present invention may be further configured in a preferred embodiment as: the top and the bottom of the rubber pad are both provided with protective layers.

By adopting the technical scheme, the arrangement of the protective layer can effectively prevent the problem of surface stickiness caused by oil separated out from the rubber layer due to high temperature.

The present invention may be further configured in a preferred embodiment as: the inorganic fiber layer is made of glass fiber materials.

Through adopting above-mentioned technical scheme, the inorganic fiber layer is made for glass fiber material, and the inorganic fiber layer has the advantage that mechanical strength is high, can strengthen the tensile strength on rubber layer better, prevents effectively that the rubber layer from warping at the pressfitting in-process, and then has effectively prolonged the life of product.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the annular buffer piece and the striking pad, the striking pad buffers and reduces the hydraulic hammer core, so that the vibration of the hydraulic hammer core is reduced, the damage to the hydraulic hammer body is reduced, the annular buffer piece provides a buffer space between the hydraulic hammer body and the hydraulic hammer anvil seat, the generated vibration is absorbed, the vibration generated by the anvil block after the hydraulic hammer core is hammered is buffered, the damage of vibration waves to the hydraulic hammer body and the pile cap is reduced, and the effect of prolonging the service life of the hydraulic hammer can be achieved through the cooperation of the annular buffer piece and the striking pad;

2. the annular buffer piece is made of three annular plates and two layers of rubber pads, the rubber pads have good buffering performance, the annular plates can enhance the overall strength of the annular buffer piece and protect the rubber pads, and the annular buffer piece is firm and durable due to the combination of the annular plates and the rubber pads, can well weaken the vibration of the anvil block and reduce the damage of vibration waves to the hydraulic hammer body and the pile cap;

3. the rubber pad includes two inoxidizing coating, two-layer rubber layer and one deck inorganic fiber layer, and the rubber layer has good shock-absorbing capacity, can ensure that ring buffer spare and strike pad can effectively slow down the vibration of anvil block and hydraulic hammer core, promotes the life of hydraulic hammer. The inorganic fiber layer strengthens the tensile strength of the rubber layer, effectively prevents the rubber layer from deforming in the pressing process, further effectively prolongs the service life of a product, and the arrangement of the protective layer can effectively prevent oil precipitated from the rubber layer due to high temperature from causing the problem of surface stickiness, thereby ensuring the performance of the rubber pad.

Drawings

FIG. 1 is a schematic cross-sectional view of a buffer mechanism embodying the present invention in connection with a hydraulic ram and a pile cap;

FIG. 2 is a schematic structural view of an annular buffer;

fig. 3 is a schematic view of the layer structure of the rubber mat.

In the figure, 1, a hydraulic hammer body; 11. a hammer core of the hydraulic hammer; 2. pile caps; 21. an anvil block; 3. a limiting plate; 4. an annular buffer member; 41. an annular plate; 42. a support block; 43. a bevel; 44. increasing friction lines; 5. a strike pad; 6. a rubber pad; 61. a rubber layer; 62. a protective layer; 63. and an inorganic fiber layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a buffer gear of hydraulic hammer, its setting is equipped with the hydraulic hammer core 11 that is used for the pile in the hydraulic hammer body 1 and the junction of pile cap 2 in the hydraulic hammer body 1, is equipped with the anvil bed 21 that is used for bearing the hammering of hydraulic hammer core 11 in the pile cap 2. The hydraulic hammer comprises an annular limiting plate 3 arranged between a hydraulic hammer body 1 and a pile cap 2, an annular buffer 4 used for buffering the vibration of an anvil 21 and a beating pad 5 used for reducing the vibration of a hydraulic hammer core 11. The limiting plate 3 is detachably connected with the hydraulic hammer body 1 and the pile cap 2 through bolts and nuts, the inner aperture of the limiting plate 3 is smaller than that of the hydraulic hammer body 1, and the top of the anvil block 21 and the bottom of the hydraulic hammer core 11 can penetrate through the limiting plate 3. The annular buffer member 4 is sleeved on the anvil block 21, and the top of the annular buffer member 4 is fixedly connected with the bottom of the limiting plate 3. A supporting block 42 is connected between the annular buffer member 4 and the anvil 21, and the top of the supporting block 42 is fixedly connected with the bottom of the annular buffer member 4. The annular buffer 4 provides a buffer space between the hydraulic hammer body 1 and the hydraulic hammer anvil 21, absorbs generated vibration, buffers the vibration generated by the anvil 21 after the hammer of the hydraulic hammer core 11, and reduces the damage of vibration waves to the hydraulic hammer body 1 and the pile cap 2. The striking pad 5 is located the anvil 21 top and with anvil 21 fixed connection, strikes on the striking pad 5 at the anvil 21 top after hydraulic hammer core 11 falls, and the striking pad 5 cushions hydraulic hammer core 11 and has reduced this moment, and then has reduced the vibration of hydraulic hammer core 11, and then has reduced the damage to hydraulic hammer body 1. And the pad 5 prevents the hammer core 11 of the hydraulic hammer from directly colliding with the anvil 21, reducing the generation of noise.

Referring to fig. 1 and 2, the bottom of the supporting block 42 is provided with an inclined surface 43, that is, the supporting block 42 is annular and has two triangular sections, the supporting block 42 is sleeved on the anvil 21, and when piling is performed, the inclined surface 43 of the supporting block 42 is attached to the outer side surface of the anvil 21, so that the anvil 21 is not prevented from rotating relative to the hydraulic hammer body 1, the anvil 21 can be kept in close contact with the damping seat, and the damping reliability is improved.

Referring to fig. 1 and 2, the annular cushion 4 includes three annular plates 41 stacked, and annular rubber pads 6 are disposed between adjacent annular plates 41, and the rubber pads 6 are bonded to the annular plates 41 by an adhesive. Rubber pad 6 has good shock-absorbing capacity, and annular plate 41 can strengthen annular buffer 4's bulk strength, protects rubber pad 6, and annular buffer 4 that annular plate 41 and rubber pad 6 combination can make is durable and can be fine weakens the vibration of anvil block 21, reduces the harm of vibration ripples to hydraulic hammer 1 and pile cap 2. The top surface and the bottom surface of the rubber pad 6 are provided with friction increasing lines 44 for increasing the friction between the rubber pad 6 and the annular plate 41, the friction increasing lines 44 can increase the friction between the rubber pad 6 and the annular plate 41, and the connection stability of the rubber pad 6 and the annular plate 41 is improved. Moreover, the striking pad 5 is also a rubber pad 6, and the rubber pad 6 has good buffering performance, so that the striking pad 5 can absorb and buffer the hydraulic hammer core 11.

Referring to fig. 1 and 3, the rubber pad 6 includes an inorganic fiber layer 63 for enhancing the tensile strength of the rubber pad 6 and two rubber layers 61, and the inorganic fiber layer 63 is located between the two rubber layers 61. The rubber layer 61 has good buffering performance, and can ensure that the annular buffer 4 and the striking pad 5 can effectively slow down the vibration of the anvil 21 and the hammer core 11 of the hydraulic hammer, and prolong the service life of the hydraulic hammer. Inorganic fiber layer 63 is made for the glass fiber material, and inorganic fiber layer 63 has the high advantage of mechanical strength, can strengthen the tensile strength of rubber layer 61 better, prevents effectively that rubber layer 61 from warping at the pressfitting in-process, and then has effectively prolonged the life of product. The top and the bottom of the rubber pad 6 are both provided with a protective layer 62, and the protective layer 62 can be made of teflon cloth. The protective layer 62 plays a certain role of isolation and protection, and effectively solves the problem of surface stickiness caused by oil separated out from the rubber layer 61 due to high temperature.

The implementation principle of the embodiment is as follows: when the pile driving operation is performed, the pile cap 2 is fitted over the pile so that the bottom of the anvil block 21 abuts against the top of the pile, and the hydraulic hammer core 11 drops down along the hydraulic hammer body 1 to hammer the anvil block 21, thereby achieving the operation of driving the pile into the ground. When the hydraulic hammer core 11 falls down and strikes the striking pad 5 at the top of the anvil block 21, the striking pad 5 buffers the hydraulic hammer core 11, so that the vibration of the hydraulic hammer core 11 is reduced, and the damage to the hydraulic hammer body 1 is reduced. And annular bolster 4 provides the buffering space for between hydraulic hammer 1 and the hydraulic hammer anvil block 21, plays the absorbing action to the vibration that produces, and the vibration that the anvil block 21 produced after the buffering hydraulic hammer core 11 hammering reduces the harm of vibration wave to hydraulic hammer 1 and pile cap 2, and annular bolster 4 and the cooperation of pad 5 can reach the effect that improves the life of hydraulic hammer. In addition, the rubber pad 6 is made of two protective layers 62, two rubber layers 61 and one inorganic fiber layer 63, so that the rubber pad 6 has good buffering performance and good tensile strength, the problem that the surface is sticky due to oil separated out from the rubber layer 61 at high temperature can be effectively solved, the striking pad 5 and the annular buffer piece 4 are firmer, durable and good in buffering performance, the vibration of the anvil block 21 and the hammer core 11 of the hydraulic hammer can be better buffered, and the effect of prolonging the service life of the hydraulic hammer is achieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a buffer gear of hydraulic hammer, its setting is equipped with hydraulic hammer core (11) that are used for the pile in the junction of hydraulic hammer body (1) and pile cap (2) in hydraulic hammer body (1), is equipped with anvil block (21) that are used for bearing hydraulic hammer core (11) hammering in pile cap (2), its characterized in that: the pile driver comprises an annular limiting plate (3) arranged between a hydraulic hammer body (1) and a pile cap (2), an annular buffer piece (4) used for buffering the vibration of an anvil block (21) and a striking pad (5) used for reducing the vibration of a hydraulic hammer core (11), wherein the limiting plate (3) is detachably connected with the hydraulic hammer body (1) and the pile cap (2), and the inner aperture of the limiting plate (3) is smaller than that of the hydraulic hammer body (1); the annular buffer piece (4) is sleeved on the anvil block (21), and the top of the annular buffer piece (4) is fixedly connected with the bottom of the limiting plate (3); a supporting block (42) is connected between the annular buffer piece (4) and the anvil block (21), and the top of the supporting block (42) is fixedly connected with the bottom of the annular buffer piece (4); the striking pad (5) is positioned at the top of the anvil block (21) and is fixedly connected with the anvil block (21).

2. A cushioning mechanism for a hydraulic hammer, according to claim 1, wherein: the bottom of the supporting block (42) is provided with an inclined plane (43), and the inclined plane (43) is attached to the outer side surface of the anvil block (21).

3. A cushioning mechanism for a hydraulic hammer, according to claim 1, wherein: annular bolster (4) include three annular plates (41) that pile up the setting, adjacent all be equipped with annular rubber pad (6) between annular plate (41).

4. A cushioning mechanism for a hydraulic hammer, according to claim 3, wherein: the top surface and the bottom surface of the rubber pad (6) are provided with friction increasing grains (44) for increasing the friction between the rubber pad and the annular plate (41).

5. A cushioning mechanism for a hydraulic hammer, according to claim 1, wherein: the striking pad (5) is a rubber pad (6).

6. A damping mechanism for a hydraulic hammer as claimed in claim 3 or 5, wherein: the rubber pad (6) comprises an inorganic fiber layer (63) for enhancing the tensile strength of the rubber pad (6) and two rubber layers (61), wherein the inorganic fiber layer (63) is positioned between the two rubber layers (61).

7. A cushioning mechanism for a hydraulic hammer, according to claim 6, wherein: the top and the bottom of the rubber pad (6) are both provided with protective layers (62).

8. A cushioning mechanism for a hydraulic hammer, according to claim 6, wherein: the inorganic fiber layer (63) is made of glass fiber materials.