CN212359602U

CN212359602U - Double-drill-bit lifting arm type breaking hammer

Info

Publication number: CN212359602U
Application number: CN202021238352.8U
Authority: CN
Inventors: 孙威; 于会友
Original assignee: Zhejiang Mobile Hydraulic Power Technology Co ltd
Current assignee: Zhejiang Mobile Hydraulic Power Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-01-15
Anticipated expiration: 2030-06-30

Abstract

The utility model provides a two bore bit raise arm formula quartering hammer, including base, reciprocal hammer, bore bit one, bore bit two, hydro-cylinder, switching-over valve, pump source, energy storage ware, oil tank, reciprocal hammer articulates on the base, and bore bit one, bore bit two are installed respectively on the base, and bore bit one is a contained angle with bore bit two, be equipped with aggregate unit between hydro-cylinder and the reciprocal hammer, aggregate unit drive reciprocal hammer and strike bore bit one and bore bit two, the business turn over hydraulic fluid port of hydro-cylinder is connected with the AB mouth of switching-over valve, and the P mouth and the pump source of switching-over valve, energy storage ware are connected, and the T mouth and the oil tank of switching-over valve are connected. The utility model has the advantages that: the crushing effect is concentrated, the crushing efficiency is improved, and the rebound energy of each impact is utilized to the maximum extent.

Description

Double-drill-bit lifting arm type breaking hammer

Technical Field

The utility model relates to a hydraulic breaking hammer technical field, concretely relates to be applied to two bore bit lifting arms formula quartering hammer of broken shallow rock.

Background

The common hydraulic breaking hammer adopts a combination structure of a single drill bit and a hydraulic impactor. The rebound energy generated after the hydraulic impactor strikes the single drill bit cannot be effectively utilized, is usually absorbed by a hydraulic system, and most of the rebound energy is converted into heat energy which can be dissipated. Therefore, the single point impact of a single bit on the rock has a low crushing effect and a low crushing efficiency.

Disclosure of Invention

The utility model aims at providing a concentrate crushing effect, improve crushing efficiency, furthest utilizes the two bore bit lifting arms formula quartering hammer of bounce-back energy of impact at every turn.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a double-drill-bit lifting arm type breaking hammer comprises a base, a reciprocating hammer, a first drill bit, a second drill bit, an oil cylinder, a reversing valve, a pump source, an energy accumulator and an oil tank, wherein the reciprocating hammer is hinged to the base, the first drill bit and the second drill bit are respectively installed on the base, an included angle is formed between the first drill bit and the second drill bit, a linkage device is arranged between the oil cylinder and the reciprocating hammer and drives the reciprocating hammer to repeatedly strike the first drill bit and the second drill bit, an oil inlet and an oil outlet of the oil cylinder are connected with an AB port of the reversing valve, a P port of the reversing valve is connected with the pump source and the energy accumulator, and a T port of the reversing valve is connected with the oil tank.

Furthermore, the linkage device drives a straight groove rod arranged at the front end of the movable rod to move by the movable rod of the oil cylinder, and drives a round rod arranged on the cantilever of the reciprocating hammer to slide in the straight groove opening of the straight groove rod, so that the reciprocating hammer is driven to rotate to strike the first drill bit and the second drill bit in a reciprocating mode.

Furthermore, the linkage device is characterized in that the oil cylinder movable rod drives a straight groove rod arranged at the front end of the movable rod to move, and the straight groove rod is hinged with a round rod arranged on a reciprocating hammer cantilever so as to drive the reciprocating hammer to reciprocally rotate to hit the first drill bit and the second drill bit.

Furthermore, the linkage device is characterized in that the movable rod of the oil cylinder drives a rack arranged at the front end of the movable rod to move, and the reciprocating hammer is meshed with the rack and a gear arranged at the hinged position of the base to drive the reciprocating hammer to rotate to strike the first drill bit and the second drill bit in a reciprocating mode.

Furthermore, an included angle between the first drill bit and the second drill bit is 15 ︒ -30 ︒.

Compared with the prior art, the utility model, have following advantage:

the utility model relates to a two bore bit raise arm formula quartering hammer adopts two bore bit structural connection modes, produces concentrated crushing effect when broken operation, and the jump bit can be under the rebound effect of bore bit after hitting a bore bit, quick reverse operation, under hydraulic cylinder's helping hand promotes for the reverse quick operation of jump bit strikes another bore bit, and the cycle is started, forms and vibrates the impact effect, improves crushing efficiency, but the rebound energy of each impact of furthest utilization.

Drawings

Fig. 1 is a schematic structural view of an embodiment 1 of the double-bit lifting arm breaking hammer of the present invention.

Fig. 2 is the structure schematic diagram of embodiment 2 of the double-bit lifting arm breaking hammer of the present invention.

Fig. 3 is the embodiment 3 of the double-bit lifting arm breaking hammer of the present invention.

Detailed Description

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Example 1

As shown in figure 1, the double-drill-bit lifting arm type breaking hammer comprises a base 1, a reciprocating hammer 2, a first drill bit 3, a second drill bit 4, an oil cylinder 5, a reversing valve 6, a pump source 7, an energy accumulator 8 and an oil tank 9, wherein the reciprocating hammer 2 is hinged to the base 1, the first drill bit 3 and the second drill bit 4 are respectively installed on the base 1, the first drill bit 3 and the second drill bit 4 are rock breaking drill bits with the same structure, an included angle is formed between the first drill bit 3 and the second drill bit 4 and ranges from 15 ︒ to 30 ︒, and the included angle can be set to realize centralized breaking on the same point. The tail of the oil cylinder 5 is fixedly installed on the base 1, a linkage device is arranged between the oil cylinder 5 and the reciprocating hammer 2, the linkage device is used for driving the oil cylinder 5 movable rod to drive a straight groove rod 10 arranged at the front end of the movable rod to move, and driving a round rod arranged on a cantilever of the reciprocating hammer 2 to slide in a straight groove opening of the straight groove rod 10, so that the reciprocating hammer 5 is driven to rotate to strike the first drill bit 3 and the second drill bit 4 in a reciprocating mode. The movable rod of the oil cylinder 5 moves leftwards or rightwards to drive the round rod on the cantilever of the reciprocating hammer 5 to slide in the straight notch of the straight notch rod 10, so as to drive the reciprocating hammer 5 to rotate anticlockwise to hit the drill bit I3 or rotate clockwise to hit the drill bit II 4.

In the description, the base of the hinged reciprocating hammer 2, the base of the first drill bit 3 and the second drill bit 4 and the base of the fixed oil cylinder 5 are the same base, which is the outer frame structure of the total equipment.

The utility model discloses an oil cylinder adopts two effect single piston pneumatic cylinders, contains pole chamber and no pole chamber in the hydro-cylinder 5. A port A and a port B of the reversing valve 6 are connected to the oil cylinder 5, a port P is a high-pressure oil inlet, and a port T is a low-pressure oil return port. The pump source 7 is used for providing a high-pressure oil source for a hydraulic system (oil cylinder). The energy accumulator 8 is used for storing hydraulic oil when the oil cylinder 5 does not work and supplying oil to the oil cylinder 5 together with the pump source 7 when the oil cylinder 5 works; this arrangement makes it possible to reduce the size of the pump appropriately under a constant speed of the cylinder 5. An oil inlet and an oil outlet of the oil cylinder 5 are connected with an AB port of the reversing valve 6, a P port of the reversing valve 6 is connected with the pump source 7 and the energy accumulator 8, and a T port of the reversing valve 6 is connected with the oil tank 9.

The working principle of example 1 is as follows:

the reversing valve 6 is switched to an upper position, high-pressure oil of the pump source 7 enters a rodless cavity of the oil cylinder 5 to push a movable rod of the oil cylinder 5 to extend out, and a straight groove rod 10 at the front end of the movable rod of the oil cylinder 5 translates leftwards to drive the reciprocating hammer 2 to rotate anticlockwise; before the reciprocating hammer 2 strikes the drill bit I3, the reversing valve 6 is switched to a middle position, at the moment, a rodless cavity and a rod cavity of the oil cylinder 5 are both connected to the oil tank 9, and a movable rod of the oil cylinder 5 does not displace; after the reciprocating hammer 2 strikes the drill bit 3, the drill bit 3 has a rebound force on the reciprocating hammer 2, so that the reciprocating hammer 2 rotates clockwise, the reversing valve 6 is switched to the lower position, high-pressure oil of the pump source 7 enters the rod cavity, the piston of the oil cylinder 5 is driven to move right, and a resultant force of forward acceleration is generated when the reciprocating hammer 2 rotates clockwise; before the reciprocating hammer 2 strikes the drill bit II 4, the reversing valve 6 is switched to a middle position, at the moment, a rodless cavity and a rod cavity of the oil cylinder 5 are both connected to the oil tank 9, and the movable rod of the oil cylinder 5 does not displace. The reciprocating hammer 2 is driven by the movable rod of the oil cylinder 5 and under the action of the rebounding force of the drill bit to strike the first drill bit 3 and the second drill bit 4 in a reciprocating mode in a circulating mode.

Example 2

Embodiment 2 is a modification of the linkage system based on embodiment 1. In embodiment 2, the tail of the oil cylinder 5 is hinged to the base 1, and the front end of the movable rod of the oil cylinder 5 is hinged to a round rod arranged on a cantilever of the reciprocating hammer 2. The movable rod of the oil cylinder 5 drives a straight groove rod 10 arranged at the front end of the movable rod to move, and the straight groove rod 10 is hinged with a round rod arranged on a cantilever of the reciprocating hammer 2, so that the reciprocating hammer 2 is driven to rotate to strike the first drill bit 3 and the second drill bit 4 in a reciprocating mode.

The working principle of example 2 is as follows:

the reversing valve 6 is switched to an upper position, high-pressure oil of the pump source 7 enters a rod cavity of the oil cylinder 5 to push a movable rod of the oil cylinder 5 to retract, and the front end of the movable rod of the oil cylinder 5 is hinged with a round rod arranged on a cantilever of the reciprocating hammer 2 to drive the reciprocating hammer 2 to rotate anticlockwise; when the reciprocating hammer 2 passes through the highest point in the vertical direction, the reversing valve 6 is switched to the lower position, high-pressure oil of the pump source 7 enters a rodless cavity of the oil cylinder 5, a movable rod of the oil cylinder 5 is pushed to extend out, and the reciprocating hammer 2 is driven to continuously rotate anticlockwise; before the reciprocating hammer 2 strikes the drill bit I3, the reversing valve 6 is switched to a middle position, at the moment, a rodless cavity and a rod cavity of the oil cylinder 5 are both connected to the oil tank 9, and a movable rod of the oil cylinder 5 does not displace; after the reciprocating hammer 2 strikes the drill bit 3, the drill bit 3 has a rebound force for the reciprocating hammer 2, so that the reciprocating hammer 2 rotates clockwise, the reversing valve 6 is switched to the upper position, high-pressure oil of the pump source 7 enters the rod cavity, the movable rod of the driving oil cylinder 5 retracts, and a resultant force for forward acceleration is generated when the reciprocating hammer 2 rotates clockwise; when the reciprocating hammer 2 passes through the highest point in the vertical direction, the reversing valve 6 is switched to the lower position, high-pressure oil of the pump source 7 enters a rodless cavity of the oil cylinder 5, a movable rod of the oil cylinder 5 is pushed to extend out, and the reciprocating hammer 2 is driven to continuously rotate clockwise; before the reciprocating hammer 2 strikes the drill bit II 4, the reversing valve 6 is switched to a middle position, at the moment, a rodless cavity and a rod cavity of the oil cylinder 5 are both connected to the oil tank 9, and the movable rod of the oil cylinder 5 does not displace. The reciprocating hammer 2 is driven by the movable rod of the oil cylinder 5 and under the action of the rebounding force of the drill bit to strike the first drill bit 3 and the second drill bit 4 in a reciprocating mode in a circulating mode.

Example 3

Embodiment 3 is a modification of the linkage system based on embodiment 1. In embodiment 3, a rack 11 is disposed at the front end of the movable rod of the oil cylinder 5, a gear 12 is disposed at the hinge joint of the reciprocating hammer 2 and the base 1, and the rack 11 is engaged with the gear 12. The movable rod of the oil cylinder 5 drives a rack 11 arranged at the front end of the movable rod to move, the rack 11 moves to drive a gear 12 to rotate, and the gear 12 and the reciprocating hammer 2 are relatively fixed, so that the reciprocating hammer 2 is driven to rotate to strike the first drill bit 3 and the second drill bit 4 in a reciprocating mode.

The working principle of example 3 is as follows:

the reversing valve 6 is switched to an upper position, high-pressure oil of the pump source 7 enters a rodless cavity of the oil cylinder 5 to push a movable rod of the oil cylinder 5 to extend out, a rack 11 arranged at the front end of the movable rod of the oil cylinder 5 translates leftwards, and a driving gear 12 rotates anticlockwise to drive the reciprocating hammer 2 to rotate anticlockwise; before the reciprocating hammer 2 strikes the drill bit I3, the reversing valve 6 is switched to a middle position, at the moment, a rodless cavity and a rod cavity of the oil cylinder 5 are both connected to the oil tank, and a movable rod of the oil cylinder 5 does not displace; after the reciprocating hammer 2 strikes the drill bit 3, the drill bit 3 has a rebound force on the reciprocating hammer 2, so that the reciprocating hammer 2 rotates clockwise, the reversing valve 6 is switched to the lower position, high-pressure oil of the pump source 7 enters the rod cavity, the movable rod of the oil cylinder 5 is driven to move right, and a resultant force of forward acceleration is generated when the reciprocating hammer 2 rotates clockwise; before the reciprocating hammer 2 strikes the drill bit II 4, the reversing valve 6 is switched to a middle position, at the moment, a rodless cavity and a rod cavity of the oil cylinder 5 are both connected to the oil tank 9, and the movable rod of the oil cylinder 5 does not displace. The reciprocating hammer 2 is driven by the movable rod of the oil cylinder 5 and under the action of the rebounding force of the drill bit to strike the first drill bit 3 and the second drill bit 4 in a reciprocating mode in a circulating mode.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a two bore bit raise arm quartering hammer which characterized in that: the reciprocating hammer is hinged to the base, the first drill bit and the second drill bit are respectively installed on the base, an included angle is formed between the first drill bit and the second drill bit, a linkage device is arranged between the oil cylinder and the reciprocating hammer and drives the reciprocating hammer to repeatedly strike the first drill bit and the second drill bit, an oil inlet and an oil outlet of the oil cylinder are connected with an AB port of the reversing valve, a P port of the reversing valve is connected with the pump source and the energy accumulator, and a T port of the reversing valve is connected with the oil tank.

2. A twin bit horn demolition hammer as claimed in claim 1, wherein: the linkage device is characterized in that the oil cylinder movable rod drives a straight groove rod arranged at the front end of the movable rod to move, and a round rod arranged on a reciprocating hammer cantilever is driven to slide in a straight groove opening of the straight groove rod, so that the reciprocating hammer is driven to rotate to strike the first drill bit and the second drill bit in a reciprocating mode.

3. A twin bit horn demolition hammer as claimed in claim 1, wherein: the linkage device is characterized in that the oil cylinder movable rod drives a straight groove rod arranged at the front end of the movable rod to move, and the straight groove rod is hinged with a round rod arranged on a reciprocating hammer cantilever so as to drive the reciprocating hammer to reciprocally rotate to hit the first drill bit and the second drill bit.

4. A twin bit horn demolition hammer as claimed in claim 1, wherein: the linkage device is characterized in that the oil cylinder movable rod drives a rack arranged at the front end of the movable rod to move, and a gear and the rack arranged at the hinged position of the reciprocating hammer and the base are meshed and connected, so that the reciprocating hammer is driven to rotate to strike the first drill bit and the second drill bit in a reciprocating mode.

5. A twin bit horn demolition hammer as claimed in claim 2, 3 or 4, wherein: the included angle between the first drill bit and the second drill bit is 15 ︒ -30 ︒.