CN217267449U

CN217267449U - Shock-absorbing buffer mechanism for replacing impact hammer

Info

Publication number: CN217267449U
Application number: CN202220912097.3U
Authority: CN
Inventors: 林登; 张剑; 杨震宇; 陈增增
Original assignee: Yongan Machinery Co ltd
Current assignee: Yongan Machinery Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-23
Anticipated expiration: 2032-04-19

Abstract

The utility model relates to a shock hammer replace and beat shock attenuation buffer gear, hammer core along hammer shell axial displacement, and then hit and replace and beat the body after passing buffer ring and anti-shake ring, and after replacing and beat the firm stone layer that the body was beaten, will transmit anti-seismic force to anti-shake ring through replacing and beat the body, anti-shake ring will send anti-seismic force to buffer ring, reduce the anti-seismic force peak value, and buffer ring that multilayer stack set up will absorb and buffer anti-seismic force and then act on in whole damping chamber, make damping chamber give back to the hammer shell with the anti-seismic force after progressively decreasing step by step, whole process anti-seismic force is many times shock attenuation and buffering, avoid the hammer shell inner part to receive too big anti-seismic, and then improve the life of the equipment, when corresponding the damping chamber of different size, can use the buffer ring of same specification to superpose in batches and fill in the damping chamber, and need not prepare the buffer ring of external specification in addition, very big improvement the suitability of buffer ring, the equipment cost is reduced.

Description

Shock-absorbing buffer mechanism for replacing impact hammer

Technical Field

The utility model relates to an engineering machine tool field, in particular to percussion hammer take over and beat shock attenuation buffer gear.

Background

The construction method is characterized in that a timber pile or a stone pile is hammered into the ground, in order to make the foundation of the building firm, if the ground building is built on the ground, the ground is subjected to great pressure, the ground is required to have enough strength to resist the pressure, which is difficult to achieve, the ground bearing the building is required to be reinforced or the bearing mode of the ground is improved, so that the foundation is considered to be piled, most of the weight of the building is transmitted to a position deep below the ground through the pile, and the bearing capacity of the ground at the position is much larger than that of the ground.

When in construction and piling, the impact hammer overcomes the resistance of the foundation soil to the pile by utilizing the impact energy of the hammer core, then drives the hammer core to move along the hammer frame to drive the pile to a preset depth, and a replacing component is arranged between the hammer core and the pile head to protect the pile body, so that the replacing pile head bears the impact force of the hammer core and then transmits the impact force to the pile head to pile the pile, however, if the pile body touches a hard stone layer in the piling process, the pile body also transmits the reaction force to the secondary beat, so that the secondary beat reversely shakes the whole hammer shell, parts in the hammer shell are damaged after shaking for a long time, the service life of the parts is greatly shortened, at present, some measures for damping the reaction force are also provided, the secondary beat is propped against the hammer body through a polyurethane block to damp, however, this method has poor damping effect, and polyurethane blocks with different sizes need to be replaced when corresponding to damping environments with different specifications, so that the damping module is frequently manufactured again, and the cost is too high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, a shock attenuation buffer gear is instead beaten of jump bit is provided.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a shock hammer stand instead and beat shock attenuation buffer mechanism, can follow hammer shell axial displacement's hammer core including hammer shell and setting up in hammer shell, hammer core one end is impact portion, the one end that the hammer shell corresponds impact portion is equipped with and stands instead and beats the body, stand instead and beat the one end that the body corresponds the hammer core and be equipped with and strike the portion, its characterized in that with holding that impact portion offseted: the hammer shell corresponds the one end of holding the portion of hitting and is equipped with the shock attenuation room that sets up with hammer shell an organic whole, be equipped with one end in the shock attenuation room and hold the anti-ring of shaking that portion of hitting offsets, the other end is equipped with the buffering ring of a plurality of and shock attenuation indoor wall and the mutual butt of anti-ring of shaking, the portion of hitting can pass and beat behind buffering ring and the anti-ring and take place to beat the body to the reaction force that will take place to beat the body and give the buffering ring through anti-ring feedback, is used for the hammer shell by buffering ring buffering back again.

By adopting the technical scheme, the hammering force of the hammer core is transmitted to the pile body through the replacing body by arranging the replacing body, so that the pile body is protected from being broken, and the deformation of the pile body is avoided, wherein the hammer core moves along the axial direction of the hammer shell, then passes through the buffer ring and the anti-vibration ring to hit the replacing body, and after the replacing body hits the hard stone layer, the anti-vibration force is transmitted to the anti-vibration ring through the replacing body, the anti-vibration ring transmits the anti-vibration force to the buffer ring to reduce the peak value of the anti-vibration force, the buffer rings arranged in a multi-layer overlapping way absorb and buffer the anti-vibration force and then act in the whole damping chamber, so that the damping chamber feeds back the anti-vibration force which is gradually reduced to the hammer shell, the anti-vibration force in the whole process is buffered for a plurality of times, the large anti-vibration of the inner part of the hammer shell is avoided, so that the service life of the equipment is prolonged, and when the damping chambers correspond to different sizes, the damping chambers can be filled in batches by the buffer rings with the same specification, and the buffer ring with the external specification is not required to be additionally prepared, so that the adaptability of the buffer ring is greatly improved, and the equipment cost is reduced.

The above-mentioned impact hammer's shock attenuation buffer gear instead beats can further set up as: the one end that the anti-vibration ring corresponds to the portion of strikeing is equipped with and extends the shock attenuation room back and the anti-vibration face that offsets with the portion of strikeing, and the one end towards the buffering ring is equipped with the diffusion face that all mutual butt was all with buffering ring and shock attenuation room, the cross section of diffusion face is greater than the cross section of anti-vibration face.

Adopt above-mentioned technical scheme, the anti-ring that shakes absorbs the back with the anti-vibration power through the less anti-face that shakes of cross section, and the great diffusion face of rethread cross section is with the even diffusion of anti-vibration power, makes the impact force evenly distributed that the buffering ring received, reduces the anti-vibration power that the buffering ring received, makes the anti-vibration power realize the buffering shock attenuation after evenly being absorbed by the buffering ring, avoids the hammer shell to be vibrated by other parts, improve equipment life.

The above-mentioned impact hammer's shock attenuation buffer gear instead beats can further set up as: the cross section of the impact part is smaller than that of the hammer core.

By adopting the technical scheme, the impact part with the cross section smaller than the hammer core is arranged on the hammer core, and the area of the stamping end of the hammer body is reduced by the impact part with the cross section smaller than the hammer core, so that the resistance in stamping is reduced, the effect of the impact hammer in piling is better, and the structure is simple.

The above-mentioned impact hammer's shock attenuation buffer gear instead beats can further set up as: and a piling part is arranged at one end of the replacing beating body far away from the beating bearing part, and the cross section of the piling part is larger than that of the beating bearing surface.

By adopting the technical scheme, the pile driving part and the bearing part are arranged, and the cross section of the pile driving part is larger than that of the bearing surface, so that the pile driving body absorbs the punching force through the bearing surface with the smaller cross section, and then the punching force is uniformly diffused through the pile driving part with the larger cross section, the impact force on the pile body is uniformly distributed, and the pile body is prevented from being damaged and broken.

The above-mentioned impact hammer's shock attenuation buffer gear instead beats can further set up as: the anti-vibration ring is an iron ring, and the buffer ring is a rubber ring.

Adopt above-mentioned technical scheme, the rubber ring adopts as the cushion ring, make it because of having viscoelastic properties, the damping ratio is big, it is convenient to make, and high shock attenuation and sound insulation material characteristics, the rubber ring not only can keep apart axial vibrations simultaneously, can keep apart horizontal vibrations and rotatory vibrations moreover, and the inside damping ratio of rubber is far above the metal, and have good high frequency shock insulation and sound insulation performance, and can firmly adhere to the anti-shake ring that iron was made on, and the iron ring design of anti-shake ring can pass through metal characteristic diffusion with anti-shake power, reduce the peak value.

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

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is a schematic structural view of the anti-vibration ring according to the embodiment of the present invention.

Detailed Description

As shown in fig. 1-3, a shock-absorbing buffer mechanism for alternate striking of an impact hammer comprises a hammer housing 1 and a hammer core 2 disposed in the hammer housing 1 and capable of moving along an axial direction of the hammer housing 1, wherein one end of the hammer core 2 is an impact portion 21, a cross section of the impact portion 21 is smaller than that of the hammer core 2, one end of the hammer housing 2 corresponding to the impact portion 21 is provided with an alternate striking body 3, one end of the alternate striking body 3 corresponding to the hammer core 2 is provided with a striking portion 31 abutting against the impact portion 21, one end of the hammer housing 1 corresponding to the striking portion 31 is provided with a shock-absorbing chamber 4 integrally disposed with the hammer housing 1, a shock-absorbing ring 5 having one end abutting against the striking portion 31 is disposed in the shock-absorbing chamber 4, the other end is provided with a plurality of buffer rings 6 abutting against an inner wall 4 of the shock-absorbing chamber and the shock-absorbing ring 5, the impact portion 21 can pass through the buffer rings 6 and the buffer rings 5 to strike the alternate striking body 3, and feed back a reaction force generated by the alternate striking body 3 to the buffer rings 6, the hammer shell 1 is provided with the buffer ring 6 for buffering and then acting, the end, corresponding to the impact bearing part 31, of the anti-vibration ring 5 is provided with an anti-vibration surface 51 which extends out of the damping chamber 4 and is abutted against the impact bearing part 31, the end, facing the buffer ring 6, of the anti-vibration ring 5 is provided with a diffusion surface 52 which is abutted against the buffer ring 6 and the damping chamber 4, the cross section of the diffusion surface 52 is larger than that of the anti-vibration surface 51, the end, far away from the impact bearing part 31, of the substitute hitting body 3 is provided with a hitting part 32, the cross section of the hitting part 32 is larger than that of the impact bearing surface 31, the anti-vibration ring 5 is an iron ring, and the buffer ring 6 is a rubber ring.

Claims

1. The utility model provides a shock hammer stand instead and beat shock attenuation buffer mechanism, can follow hammer shell axial displacement's hammer core including hammer shell and setting up in hammer shell, hammer core one end is impact portion, the one end that the hammer shell corresponds impact portion is equipped with and stands instead and beats the body, stand instead and beat the one end that the body corresponds the hammer core and be equipped with and strike the portion, its characterized in that with holding that impact portion offseted: the hammer shell corresponds the one end of holding the portion of hitting and is equipped with the shock attenuation room that sets up with hammer shell an organic whole, be equipped with one end in the shock attenuation room and hold the anti-ring of shaking that portion of hitting offsets, the other end is equipped with the buffering ring of a plurality of and shock attenuation indoor wall and the mutual butt of anti-ring of shaking, the portion of hitting can pass and beat behind buffering ring and the anti-ring and take place to beat the body to the reaction force that will take place to beat the body and give the buffering ring through anti-ring feedback, is used for the hammer shell by buffering ring buffering back again.

2. The impact hammer of claim 1, wherein: the one end that the anti-vibration ring corresponds to the portion of strikeing is equipped with and extends the shock attenuation room back and with the anti-vibration face that the portion of strikeing offsets, the one end towards the buffering ring is equipped with the diffusion face that all mutually supports with buffering ring and shock attenuation room, the cross section of diffusion face is greater than the cross section of anti-vibration face.

3. The impact hammer of claim 2, wherein the impact hammer further comprises: the cross section of the impact part is smaller than that of the hammer core.

4. The impact hammer of claim 2, wherein the impact hammer further comprises: and a piling part is arranged at one end of the replacing beating body far away from the beating bearing part, and the cross section of the piling part is larger than that of the beating bearing surface.

5. The take-up shock absorbing cushioning mechanism of an impact hammer as claimed in any one of claims 1 to 4, wherein: the anti-vibration ring is an iron ring, and the buffer ring is a rubber ring.