CN210648305U

CN210648305U - Shock absorber for electro-hydraulic hammer

Info

Publication number: CN210648305U
Application number: CN201921089137.3U
Authority: CN
Inventors: 王凯; 刘钊
Original assignee: Xi'an Lantong Mechanical Equipment Manufacturing Co Ltd
Current assignee: Xi'an Lantong Mechanical Equipment Manufacturing Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-06-02
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a bumper shock absorber for electrohydraulic hammer relates to electrohydraulic hammer technical field, does not have the shock attenuation safeguard measure to current electrohydraulic hammer, does not worry the problem that the spring replied the reverse action fast moreover after the shock attenuation, now proposes following scheme, including the tup, the bottom welding of tup has the clamp plate, the bottom both sides welding of clamp plate has the movable rod that sets up along vertical direction, the bottom welding of movable rod has the piston, the bottom welding of piston has the extrusion pole, the outside movable sleeve of piston is equipped with the sleeve pipe that sets up along vertical direction, the bottom welding of sheathed tube has the fixed case, the bottom fixedly connected with mount pad of fixed case, two the one side welding that the fixed case is close to each other has the supporting shoe with mount pad fixed connection. The utility model relates to a novelty, easy operation not only can provide better shock attenuation protection, but also can avoid the piston to reply too fast reverse action and tup, is favorable to the security of device.

Description

Shock absorber for electro-hydraulic hammer

Technical Field

The utility model relates to an electro-hydraulic hammer technical field especially relates to a bumper shock absorber for electro-hydraulic hammer.

Background

The electro-hydraulic hammer is a novel energy-saving and environment-friendly forging device, is divided into a single-arm electro-hydraulic hammer and a double-arm electro-hydraulic hammer, has the same working principle as an electro-hydraulic power head, but has a machine body different from an original steam hammer, and the guide of a hammer head is changed into an X-shaped guide rail, so that the gap of the guide rail can be adjusted to be within 0.3mm, the guide precision of the electro-hydraulic hammer is greatly improved, the quality of a forged piece is improved, and the service life of a hammer rod is prolonged.

When the electro-hydraulic hammer is used, the electro-hydraulic hammer is generally used for extruding and forging objects, however, if some brittle objects are extruded, the brittle objects are easy to break, so that a hammer head on the electro-hydraulic hammer can move downwards under the action of inertia after the objects are broken during extrusion, and the hammer head collides with a supporting seat, and therefore the shock absorber for the electro-hydraulic hammer is provided.

Disclosure of Invention

The utility model provides a pair of bumper shock absorber for electro-hydraulic hammer has solved current electro-hydraulic hammer and has not had shock attenuation safeguard measure, does not worry the problem that the spring replied the reverse action fast moreover after the shock attenuation.

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

a shock absorber for an electro-hydraulic hammer comprises a hammer head, wherein a pressing plate is welded at the bottom of the hammer head, movable rods arranged in the vertical direction are welded on two sides of the bottom of the pressing plate, a piston is welded at the bottom end of each movable rod, an extrusion rod is welded at the bottom of the piston, a sleeve arranged in the vertical direction is sleeved outside the piston, a fixed box is welded at the bottom end of the sleeve, a mounting seat is fixedly connected to the bottom of the fixed box, a supporting block fixedly connected with the mounting seat is welded on one side, close to each other, of the two fixed boxes, a first spring is sleeved inside the supporting block, two ends of the first spring are connected with connecting plates, an installation rod is welded on one side, far away from the first spring, of each installation rod, an extrusion block is welded at one end, far away from the connecting plates, the extrusion block is movably sleeved in the fixed box, and, the inside activity cover of fixed plate is equipped with the guide bar, the bottom welding of guide bar has sealed piece, the top of sealed piece is connected with the cover and establishes the second spring at the guide bar outer lane.

Preferably, a horizontally arranged mounting hole is formed in the supporting block, the connecting plate is movably sleeved in the mounting hole, and a fixing hole with the same diameter as the mounting hole is formed in the box wall of one side, close to the supporting block, of the fixing box.

Preferably, the vertical section of the extrusion block is of a right-angled triangle structure, the bottom end of the extrusion rod is in contact with the inclined surface of the extrusion block, and two fixed pulleys are mounted at the bottom of the extrusion block.

Preferably, the top box wall of the fixed box is provided with movable holes which are arranged in the same diameter as the inner diameter of the sleeve, one side, away from each other, of each movable hole is provided with an air outlet hole which penetrates through the box wall of the top of the fixed box, and the sealing block penetrates through the air outlet holes.

Preferably, the fixed plate is internally provided with a guide hole, the guide rod penetrates through the guide hole, and the sealing block is of a circular truncated cone-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages that the structure of the supporting block, the fixed box, the sleeve, the movable rod, the piston, the extrusion rod, the extrusion block, the first spring, the second spring, the installation rod, the connecting plate, the guide rod and the sealing block is adopted, when the movable rod is driven by the pressing plate to move downwards, the movable rod drives the piston and the extrusion rod to move downwards together, the extrusion rod can press the extrusion block to mutually approach to compress the first spring for shock absorption, the piston compresses air downwards to increase the air pressure in the fixed box, the air can jack the sealing block to escape from the air outlet hole, thereby facilitating shock absorption and buffering, after shock absorption, when the movable rod drives the piston and the extrusion rod to move upwards, the air pressure in the fixed box is reduced, so that the air outlet hole can be tightly plugged by the sealing block under the action of external pressure, thereby reducing the air inlet speed, thereby avoiding the piston from returning to a reverse acting hammer head, the device is novel in design, and easy operation not only can provide better shock attenuation protection, but also can avoid the piston to reply too fast reverse action and tup, is favorable to the security of device.

Drawings

Fig. 1 is a front view structure diagram of a shock absorber for an electro-hydraulic hammer provided by the utility model.

Fig. 2 is the utility model provides a supporting shoe of bumper shock absorber for electro-hydraulic hammer looks sideways at the structural schematic diagram.

In the figure: 1 hammer, 2 pressing plates, 3 movable rods, 4 pistons, 5 extrusion rods, 6 sleeves, 7 fixed boxes, 8 supporting blocks, 9 first springs, 10 connecting plates, 11 mounting rods, 12 extrusion blocks, 13 fixed plates, 14 guide rods, 15 sealing blocks, 16 second springs and 17 mounting seats.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a shock absorber for an electrohydraulic hammer comprises a hammer head 1, a pressing plate 2 is welded at the bottom of the hammer head 1, movable rods 3 arranged along the vertical direction are welded at two sides of the bottom of the pressing plate 2, a piston 4 is welded at the bottom end of each movable rod 3, an extrusion rod 5 is welded at the bottom end of each piston 4, a sleeve 6 arranged along the vertical direction is movably sleeved outside each piston 4, a fixed box 7 is welded at the bottom end of each sleeve 6, an installation seat 17 is fixedly connected at the bottom of each fixed box 7, a supporting block 8 fixedly connected with the installation seat 17 is welded at one side of each fixed box 7 close to each other, a first spring 9 is movably sleeved inside each supporting block 8, connecting plates 10 are connected at two ends of each first spring 9, an installation rod 11 is welded at one side of each connecting plate 10 far away from each connecting plate 10, an extrusion block 12 is welded at one end of each installation rod, the fixed plate 13 is welded on one side, away from each other, of each of the two sleeves 6, the guide rod 14 is movably sleeved in the fixed plate 13, the sealing block 15 is welded at the bottom end of the guide rod 14, and the second spring 16, sleeved on the outer ring of the guide rod 14, is connected to the top of the sealing block 15.

The mounting hole that has the level to set up is seted up to supporting shoe 8's inside, and the connecting plate 10 movable sleeve is established in the mounting hole, the fixed box 7 is close to one side tank wall of supporting shoe 8 and sets up the fixed orifices that equals the footpath with the mounting hole, the perpendicular cross-section of extrusion piece 12 is the right triangle structure, the bottom of ejector pin 5 and the inclined plane contact of extrusion piece 12, two fixed pulleys are installed to the bottom of extrusion piece 12, the movable hole that equals the footpath setting with the internal diameter of sleeve pipe 6 is seted up to the top tank wall of fixed box 7, one side that two movable holes kept away from each other all is equipped with the venthole that runs through fixed box 7 top tank wall, and sealed piece 15 runs through the venthole, the guiding hole has been seted up to the inside of fixed plate 13, and guiding.

In the embodiment, firstly, when the hammer head 1 and the pressure plate 2 drive the movable rod 3 to move downwards, the movable rod 3 drives the piston 4 and the extrusion rod 5 to move downwards together, the extrusion rod 5 presses the extrusion blocks 12 to be close to each other, the extrusion blocks 12 drive the mounting rod 11 and the connecting plate 10 to be close to each other, so that the connecting plate 10 compresses the first spring 9 for damping, and the piston 4 compresses air downward, so that the air pressure in the fixed box 7 is increased, the gas can jack the sealing block 15 to run out of the air outlet hole, so that the shock absorption and the buffering are convenient, after the shock absorption is finished, when the movable rod 3 drives the piston 4 and the extrusion rod 5 to move upwards, the air pressure in the fixed box 7 is reduced, so that the sealing block 15 can tightly plug the air outlet under the action of the external pressure, thereby reducing the speed of air intake, thus avoiding the piston 4 from returning to the hammer head 1 with too fast reverse action, and being beneficial to the safety of the device.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The shock absorber for the electro-hydraulic hammer comprises a hammer head (1) and is characterized in that a pressing plate (2) is welded at the bottom of the hammer head (1), movable rods (3) arranged along the vertical direction are welded at two sides of the bottom of the pressing plate (2), a piston (4) is welded at the bottom end of each movable rod (3), an extrusion rod (5) is welded at the bottom of each piston (4), a sleeve (6) arranged along the vertical direction is sleeved on the outer portion of each piston (4), a fixed box (7) is welded at the bottom end of each sleeve (6), a mounting seat (17) is fixedly connected at the bottom of each fixed box (7), a supporting block (8) fixedly connected with the mounting seat (17) is welded at one side, close to each other, of the two fixed boxes (7), a first spring (9) is sleeved on the inner portion of each supporting block (8), and connecting plates (10) are connected at two ends of the first spring, one side welding of keeping away from first spring (9) in connecting plate (10) has installation pole (11), the one end welding of keeping away from connecting plate (10) in installation pole (11) has extrusion piece (12), and extrusion piece (12) movable sleeve is established in fixed case (7), two fixed plate (13) have all been welded to one side that sleeve pipe (6) kept away from each other, the inside movable sleeve of fixed plate (13) is equipped with guide bar (14), the bottom welding of guide bar (14) has sealed piece (15), the top of sealed piece (15) is connected with second spring (16) that the cover was established at guide bar (14) outer lane.

2. The shock absorber for the electro-hydraulic hammer according to claim 1, wherein a horizontally arranged mounting hole is formed in the supporting block (8), the connecting plate (10) is movably sleeved in the mounting hole, and a fixing hole with the same diameter as the mounting hole is formed in one side wall of the fixing box (7) close to the supporting block (8).

3. The shock absorber for the electro-hydraulic hammer according to claim 1, wherein the vertical section of the extrusion block (12) is a right triangle structure, the bottom end of the extrusion rod (5) is in contact with the inclined surface of the extrusion block (12), and two fixed pulleys are mounted at the bottom of the extrusion block (12).

4. The shock absorber for the electro-hydraulic hammer according to claim 1, wherein a movable hole having the same diameter as the inner diameter of the sleeve (6) is formed in the top box wall of the fixed box (7), air outlets penetrating through the top box wall of the fixed box (7) are formed in the sides of the two movable holes away from each other, and the sealing block (15) penetrates through the air outlets.

5. The shock absorber for the electro-hydraulic hammer according to claim 1, wherein a guide hole is formed in the fixing plate (13), the guide rod (14) penetrates through the guide hole, and the sealing block (15) has a truncated cone-shaped structure.