CN111750017A

CN111750017A - Damping block of hydraulic breaking hammer

Info

Publication number: CN111750017A
Application number: CN202010551539.1A
Authority: CN
Inventors: 林雨才; 蔡斌丰; 林志
Original assignee: Taizhou Belite Machinery Co ltd
Current assignee: Taizhou Belite Machinery Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-10-09

Abstract

The invention provides a damping block of a hydraulic breaking hammer, and belongs to the technical field of breaking hammers. It has solved the current problem that the snubber block life-span is low. This buffer block of hydraulic breaking hammer, including having elastic buffer block, the buffer block all is "cross" structure and has four breach one on the buffer block, and this buffer block still includes the cushion, and the cushion is "cross" structure, four breach two have on the cushion, the cushion piles up the setting with the buffer block to have between cushion and the buffer block and make the buffer block for the connection structure of cushion circumference location, breach one and two one-to-ones in breach, the setting is leaned on to the lateral wall two of breach two for the lateral wall of breach one. This structure has improved the life of snubber block.

Description

Damping block of hydraulic breaking hammer

Technical Field

The invention belongs to the technical field of hydraulic breaking hammers, and particularly relates to a damping block of a hydraulic breaking hammer.

Background

The hydraulic breaking hammer is generally installed on an excavator for use, the power source of the hydraulic breaking hammer is mainly power provided by the excavator, a loader or a pump station, stones and rocks can be effectively broken in engineering construction, and working efficiency is improved. Traditional silence type hydraulic breaking hammer includes the core, the silence shell, base and snubber block, the core includes preceding cylinder body, well cylinder body, back cylinder body, piston and drill rod etc., preceding cylinder body, well cylinder body and back cylinder body are connected through four long filament pole, and the rear end of every long filament pole is all worn out and this end connection has the nut from the back cylinder body, the core is installed in the silence shell, the base is connected with the shell, the rear end of back cylinder body is towards the base, leave certain assembly gap between the outer end of nut and the lateral wall of snubber block, hydraulic breaking hammer can take place vibrations at the in-process core, make the outer end of nut and the lateral wall of snubber block bump, and then damage the snubber block.

At present, the chinese patent network discloses a shock attenuation hydraulic breaking hammer [ grant No.: CN202023213U, including host computer and shell, the host computer includes host computer main part, drill rod and turns to the head, the host computer main part is installed in the shell, the drill rod is installed at the front end of host computer main part, turn to the back end of head installation at the shell, polyurethane rear cushion block sets up between host computer main part rear end and the head that turns to, the quartering hammer is in the course of the work, the clearance between host computer main part and the head that turns to has been eliminated in the setting of polyurethane rear cushion block, avoid host computer main part and turn to the head to take place to touch, polyurethane rear cushion block can take place to deform and make it have certain energy-absorbing effect, slow down the vibrations of host computer main part.

In addition, chinese patent network still discloses a compound snubber block of polyurethane for hydraulic breaking hammer [ grant No.: CN201443040U, the snubber block is the cross, leads the stationary vane that shakes and the shearing force stationary vane including the balance, is comprehensive buffer portion in the middle of the snubber block, opens there is the regulation hole, leads to shake the stationary vane and all seted up the adjustment tank on the shearing force stationary vane in the balance. When the damping block is installed, one end face of the damping block is tightly attached to the rear end face of the rear cylinder body, four nuts on the rear cylinder body are respectively located in four notches of the damping block, the other end face of the damping block is attached to the side face of the base, the base is connected with the shell to tightly press the damping block on the rear cylinder body, the breaking hammer can vibrate during working, the damping block can rotate relative to the rear cylinder body due to the influence of vibration, the side wall of the damping block collides with the nuts, the damping block is extremely easy to wear and even damage, the damping block needs to be replaced regularly, when the damping block is replaced, the base needs to be detached from the shell, and due to the fact that the breaking hammer is huge in size, the base is extremely inconvenient to detach, and the use cost of the breaking hammer is greatly; in addition, the quartering hammer is at the working process, and hydraulic oil and nitrogen gas in the quartering hammer can produce the heat, and the heat can be conducted to the back cylinder body on, because snubber block and back cylinder body direct contact lead to the temperature of snubber block to rise, and the snubber block receives to produce after the extrusion easily and warp, and the snubber block damages.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a damping block of a hydraulic breaking hammer, which aims to solve the technical problems that: how to improve the life of snubber block.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a buffer block of hydraulic breaking hammer, is including having elastic buffer block, the buffer block all is "cross" structure and has four breach one on the buffer block, its characterized in that, this buffer block still includes the cushion, the cushion is "cross" structure, four breach two have on the cushion, the cushion piles up the setting with the buffer block to have between cushion and the buffer block and make the buffer block for the connection structure of cushion circumference location, breach one and two one-to-ones in breach, the lateral wall one of breach one leans on the interior setting for the lateral wall two of breach two.

The quartering hammer of prior art includes shell, core and base, and the core is installed in the shell, base and shell fixed connection, and the core includes preceding cylinder body, well cylinder body and back cylinder body again, and preceding cylinder body, well cylinder body and back cylinder body concatenate through four long lead screws to the one end of every long lead screw is all worn out from the outer terminal surface of back cylinder body, all is connected with the nut on the outer tip of every long lead screw. This snubber block assembles and uses on the quartering hammer, the lower surface of cushion and the outer terminal surface of back cylinder body counterbalance lean on, four breach one and four breach two and four nut one-to-ones, four nuts are located corresponding breach one and breach two respectively, the upper surface and the base counterbalance of snubber block lean on, compress tightly snubber block and cushion on the cylinder body of back behind base and the shell fixed connection, snubber block and cushion pass through connection structure and connect the location, the snubber block can't take place circumferential direction for the cushion.

Firstly, the breaking hammer can generate vibration in the working process, and the buffer block is deformed after being extruded due to the elasticity of the buffer block, so that the effects of shock absorption and noise reduction are achieved; secondly, when the breaking hammer works, heat can be generated by the vibration of the breaking hammer and hydraulic oil and nitrogen in the breaking hammer, the heat can be conducted to the rear cylinder body, the cushion block is arranged between the buffer block and the rear cylinder body, the cushion block has a heat insulation effect, the heat is prevented from being directly conducted to the buffer block, the over-high temperature of the buffer block is avoided, and the service life of the buffer block is prolonged; in addition, after the quartering hammer produced vibrations, can drive the cushion and take place circumferential direction for the terminal surface of back cylinder body, two lateral walls of breach two can collide with the nut mutually, cushion and buffer block link together, circumferential direction also can take place along with the cushion for the buffer block, because the lateral wall of breach one leans on the interior setting for two lateral walls of breach two, so when two lateral walls of breach two can collide with the nut mutually, when the lateral wall of breach one can not collide with the nut mutually, play the effect of protection buffer block, avoid the buffer block to damage, the life of buffer block has further been prolonged.

In the above-mentioned shock absorption block of a hydraulic breaking hammer, the shock absorption block is located in a projection of the upper surface of the cushion block. Through the design of this structure, the buffer block wholly lies in the projection at cushion upper surface place completely, and all lateral walls on the buffer block all lean on the interior setting for all lateral walls of cushion block promptly for the optional position of buffer block can not all bump with the nut.

In the above-mentioned snubber block of hydraulic breaking hammer, connection structure includes the setting element, constant head tank one has been seted up to the upper surface of cushion, constant head tank two has been seted up to the lower surface of cushion, the setting element is located between cushion and the cushion to the one end of setting element extends in the constant head tank one, and the other end extends in the constant head tank two. Through the setting of this structure, the setting element makes cushion and buffer block link together with constant head tank one and two plug-in connections of constant head tank respectively to the setting element restriction cushion and buffer block take place relative rotation.

In the shock absorption block of the hydraulic breaking hammer, the positioning pieces are positioning pins, the number of the positioning pins is two, the upper surface of the cushion block is provided with two first positioning grooves, the lower surface of the buffer block is provided with two second positioning grooves, and the first positioning grooves correspond to the second positioning grooves one to one. Through the arrangement of the structure, the cushion block and the buffer block are connected and circumferentially limited through the two positioning pins.

In the above-mentioned snubber block of a hydraulic breaker, all constant head tanks one set up along horizontal interval at the upper surface of cushion, and all constant head tanks two set up along horizontal interval at the lower surface of buffer block.

In the damping block of the hydraulic breaking hammer, a first strip-shaped groove is formed in the lower surface of the damping block along the longitudinal direction. The lower surface of the buffer block is in direct contact with the upper surface of the cushion block, the strip-shaped groove I is arranged to enable external wind to blow through the strip-shaped groove I and take away part of heat of the buffer block and the cushion block, a heat dissipation effect is achieved, and heat conducted to the buffer block by the cushion block is reduced; in addition, the design of the first strip-shaped groove enables the buffer block to be more easily deformed, and the damping effect of the buffer block is further improved.

In the damping block of the hydraulic breaking hammer, a strip-shaped groove II is transversely formed in the upper surface of the damping block. The upper surface of buffer block and the lateral wall direct contact of base, the design in bar groove two makes the buffer block change and takes place deformation, further improves the shock attenuation effect of buffer block.

In the damping block of the hydraulic breaking hammer, the middle part of the damping block is provided with the positioning hole. Through the setting of this structure, have the reference column on the base, the reference column inserts in the locating hole, and bar groove one and bar groove two discharges can be followed to the air in the locating hole.

In the above-mentioned damper block of a hydraulic breaker, the cushion block is made of polyurethane material, and the cushion block is made of MC901 material. The MC901 material is cast nylon and has the properties of light weight, high strength, self-lubrication, wear resistance, corrosion resistance, insulation and the like, so that the cushion block does not have the function of damping by deformation, but is not easy to wear and damage after colliding with the nut, and the service life of the damping block is prolonged.

Compared with the prior art, the damping block of the hydraulic breaking hammer has the following advantages: firstly, the buffer block has elasticity, and the buffer block deforms after being extruded, so that the effects of shock absorption and noise reduction are achieved; secondly, when the breaking hammer works, heat can be generated by the vibration of the breaking hammer and hydraulic oil and nitrogen in the breaking hammer, the heat can be conducted to the rear cylinder body, the cushion block is arranged between the buffer block and the rear cylinder body, the cushion block has a heat insulation effect, the heat is prevented from being directly conducted to the buffer block, the over-high temperature of the buffer block is avoided, and the service life of the buffer block is prolonged; in addition, after the quartering hammer produced vibrations, can drive the cushion and take place circumferential direction for the terminal surface of back cylinder body, two lateral walls of breach two can collide with the nut mutually, cushion and buffer block link together, circumferential direction also can take place along with the cushion for the buffer block, because the lateral wall of breach one leans on the interior setting for two lateral walls of breach two, so when two lateral walls of breach two can collide with the nut mutually, when the lateral wall of breach one can not collide with the nut mutually, play the effect of protection buffer block, avoid the buffer block to damage, the life of buffer block has further been prolonged.

Drawings

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

Figure 2 is a top view of the shock block and rear cylinder of the present invention.

Fig. 3 is a schematic diagram of the explosive structure of the present invention.

Fig. 4 is a schematic perspective view of a buffer block according to the present invention.

In the figure, 1, a buffer block; 10. a first gap is formed; 101. a first side wall; 11. positioning a second groove; 12. a first strip-shaped groove; 13. a strip-shaped groove II; 14. a left buffer section; 15. a right buffer portion; 16. a front buffer section; 17. a rear cushion section; 18. positioning holes; 2. cushion blocks; 20. a second gap; 201. a second side wall; 21. positioning a first groove; 3. a positioning member; 4. a rear cylinder body; 5. and a nut.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 3 and 4, the damping block of the hydraulic breaking hammer comprises a buffer block 1 and a cushion block 2 which are elastic, wherein the buffer block 1 is made of polyurethane material, the cushion block 2 is made of MC901 material, the cushion blocks 1 and 2 are all in a cross-shaped structure, the cushion blocks 2 and 1 are stacked, and a connecting structure for circumferentially positioning the buffer block 1 relative to the cushion blocks 2 is arranged between the cushion blocks 2 and 1, in the embodiment, the connecting structure comprises a positioning piece 3, the positioning piece 3 is a positioning pin, the positioning pin is provided with two positioning grooves I21, the upper surface of the cushion block 2 is provided with two positioning grooves II 11, the lower surface of the buffer block 1 is provided with two positioning grooves II 11, the positioning pins are located between the cushion blocks 2 and 1, one end of the positioning pin extends into the positioning grooves I21, and the other end extends into the positioning grooves II 11, the lower surface of buffer block 1 pastes with the upper surface of cushion 2 mutually and leans on, and buffer block 1 and cushion 2 pass through the locating pin to be connected, and relative rotation can not take place for buffer block 1 and cushion 2.

As shown in fig. 1 and 2, the buffer block 1 is provided with four first notches 10, the cushion block 2 is provided with four second notches 20, the first notches 10 correspond to the second notches 20 one by one, the first side walls 101 of the first notches 10 are arranged close to and opposite to the second side walls 201 of the second notches 20, the buffer block 1 is located in the projection where the upper surface of the cushion block 2 is located, and the middle of the buffer block 1 is provided with a positioning hole 18. The snubber block assembles and uses on the quartering hammer, the lower surface of cushion 2 supports with the outer terminal surface of back cylinder body 4 and leans on, four breach one 10 and four breach two 20 and four nuts 5 one-to-one, four nuts 5 are located corresponding breach one 10 and two 20 respectively, the upper surface and the base of snubber block 1 support and lean on, compress tightly snubber block 1 and cushion 2 on back cylinder body 4 behind base and the 7 fixed connection of shell, the reference column on the base inserts in locating hole 18. Firstly, the breaking hammer can generate vibration in the working process, and the buffer block 1 is extruded to deform due to the elasticity of the buffer block 1, so that the effects of shock absorption and noise reduction are achieved; secondly, the heat generated by the vibration of the breaking hammer and the hydraulic oil and nitrogen in the breaking hammer can be conducted to the rear cylinder body 4, the cushion block 2 is arranged between the buffer block 1 and the rear cylinder body 4, the cushion block 2 has a heat insulation effect, the heat is prevented from being directly conducted to the buffer block 1, the overhigh temperature of the buffer block 1 is avoided, and the service life of the buffer block 1 is prolonged; besides, the quartering hammer produces vibrations after, can drive cushion 2 and buffer block 1 and take place circumferential direction for the terminal surface of back cylinder body 4, two 201 of lateral wall of two breach 20 can collide with nut 5 mutually, because two 201 of lateral wall of 10 of breach lean on the interior setting for two 201 of lateral wall of two breach 20, so when two 201 of lateral wall of two breach 20 collide with nut 5 mutually, when one 101 of lateral wall of 10 of breach can not collide with nut 5 mutually, play the effect of protection buffer block 1, avoid buffer block 1 to damage, further prolonged buffer block 1's life.

The upper and lower surface of current snubber block is the plane, and when the snubber block received the extrusion of back cylinder body and base, the snubber block was compressed for the middle part of snubber block is outwards bloated, and when the thickness of snubber block was thinner, the structural strength of snubber block was lower, and the snubber block is broken or is crushed by the pressure very easily. As shown in fig. 1, 3 and 4, a first strip-shaped groove 12 is longitudinally formed in the lower surface of the buffer block 1 in the embodiment, a second strip-shaped groove 13 is transversely formed in the upper surface of the buffer block 1, and the two positioning grooves 11 are respectively located on the left side and the right side of the first strip-shaped groove 12. The lower surface of the buffer block 1 is divided into a left buffer part 14 and a right buffer part 15 by a first strip groove 12, the upper surface of the buffer block 1 is divided into a front buffer part 16 and a rear buffer part 17 by a second strip groove 13, when the buffer block 1 is extruded by a rear cylinder body 4 and a base, the left buffer part 14 and the right buffer part 15 are both expanded along the left and right directions after being extruded, the first strip groove 12 is arranged to provide a deformation space for the left buffer part 14 and the right buffer part 15 to be expanded along the left and right directions, the front buffer part 16 and the rear buffer part 17 are both expanded along the front and rear directions after being extruded, the second strip groove 13 is arranged to provide a deformation space for the front buffer part 16 and the rear buffer part 17 to be expanded along the front and rear directions, the buffer block 1 is more easily deformed due to the arrangement of the first strip groove 12 and the second strip groove 13, the deformation performance of the buffer block 1 is improved, and the damping effect of the buffer block 1 is improved, and meanwhile, the deformation of the buffer block 1 after being extruded, the condition that outwards heaves does not appear in the middle part of buffer block 1 for still be difficult for by fracturing or by the crushing under the condition of 1 thickness reduction of buffer block, in addition, bar groove one 12 and two 13 looks vertical arrangements in bar groove, buffer block 1 receives behind the extrusion can not take place the fracture in bar groove one 12 and two 13 departments in bar groove.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a snubber block of hydraulic breaking hammer, is including having elastic buffer block (1), buffer block (1) all is "cross" structure and has four breach one (10) on buffer block (1), its characterized in that, this snubber block still includes cushion (2), cushion (2) are "cross" structure, four breach two (20) have on cushion (2), cushion (2) pile up the setting with buffer block (1) to have between cushion (2) and buffer block (1) and make buffer block (1) for the connection structure of cushion (2) circumference location, breach one (10) and breach two (20) one-to-one, the setting up is leaned on for lateral wall two (201) of breach two (20) in lateral wall (101) of breach one (10).

2. A hydraulic breaker ram according to claim 1 wherein the pad (1) is located within the projection of the upper surface of the pad (2).

3. The cushion block of the hydraulic breaking hammer according to claim 1, wherein the connecting structure comprises a positioning member (3), a first positioning groove (21) is formed in the upper surface of the cushion block (2), a second positioning groove (11) is formed in the lower surface of the cushion block (1), the positioning member (3) is located between the cushion block (2) and the cushion block (1), and one end of the positioning member (3) extends into the first positioning groove (21) while the other end extends into the second positioning groove (11).

4. The damper block of a hydraulic breaker hammer according to claim 3, wherein the positioning member (3) is a positioning pin, the positioning pin has two positioning grooves, the upper surface of the cushion block (2) is provided with two first positioning grooves (21), the lower surface of the buffer block (1) is provided with two second positioning grooves (11), and the first positioning grooves (21) and the second positioning grooves (11) correspond to each other one by one.

5. A hydraulic breaker ram according to claim 4 wherein all the locating grooves one (21) are laterally spaced apart on the upper surface of the pad (2) and all the locating grooves two (11) are laterally spaced apart on the lower surface of the pad (1).

6. The hydraulic breaking hammer shock absorption block as claimed in claim 1, wherein a first strip-shaped groove (12) is formed in the lower surface of the buffer block (1) along the longitudinal direction.

7. The hydraulic breaking hammer shock absorption block as claimed in claim 6, wherein a second strip-shaped groove (13) is transversely formed in the upper surface of the buffer block (1).

8. The hydraulic breaking hammer shock absorption block according to any one of claims 1 to 7, wherein a positioning hole (18) is formed in the middle of the buffer block (1).

9. A hydraulic breaker bar according to any of claims 1 to 7 wherein the impact pad (1) is made of polyurethane and the pad (2) is made of MC 901.