CN113235689A

CN113235689A - Hydraulic impact breaker

Info

Publication number: CN113235689A
Application number: CN202110611433.0A
Authority: CN
Inventors: 梁山海
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-08-10

Abstract

The invention relates to a matching device of an excavator, in particular to a vibration box of a hydraulic impact crusher. The main components comprise a vibrating box body, a vibrating box connecting shaft, a damping air bag, a driving shaft, a driven shaft, an eccentric shaft and a hydraulic pipe, wherein an upper driven shaft, a driving shaft and a lower driven shaft are arranged in the vibrating box body, the driving shaft is located in the middle, the driving shaft and the driven shaft are both provided with an eccentric wheel and a gear, the driving shaft gear is respectively meshed with the upper driven shaft and the lower driven shaft, the damping air bag is arranged at the top end of the vibrating box, the tail end of the vibrating box body can be connected with a drill rod, and the vibrating box body is hinged with a swing frame of the hydraulic impact crusher through the vibrating box connecting shaft. The invention has the following beneficial effects: simple structure, strong durability, low maintenance difficulty, low production cost, large crushing force, high precision, low noise and strong crushing capability.

Description

Hydraulic impact breaker

Technical Field

The invention relates to an excavator matching device, in particular to a hydraulic impact crusher based on excavator application.

Background

In the prior art, a hydraulic impact breaker (hydraulic impact breaker) is an important working tool of a hydraulic excavator, and is mounted on an excavating loader for breaking operation, the hydraulic impact breaker takes hydrostatic pressure as power to drive a piston to reciprocate, the piston impacts a drill rod at high speed during stroke, the drill rod breaks solid such as ore and concrete, and the power source is pressure oil provided by a pump station of the excavator or loader. Chinese patent CN 203695168U discloses a high-frequency breaking hammer, which comprises a mounting device, a vibration exciter, a four-bar linkage mechanism and a vibrating cutter row, wherein the vibration exciter comprises a first driving shaft mounted in a housing, a first driven shaft and a second driving shaft which are engaged with the first driving shaft through a gear, a second driven shaft which is engaged with the second driving shaft through a gear, and a gap bridge shaft mounted between the first driving shaft and the second driving shaft; a first driving motor and a second driving motor are respectively arranged at one end of the first driving shaft and one end of the second driving shaft; the central axes of the first driving shaft and the second driving shaft are positioned on the same vertical plane; first driving shaft and first driven shaft, second driving shaft and second driven shaft are located same horizontal plane, have adopted two sets of drive shafts to two driving motors in the cooperation, overcome among the prior art defect that crushing dynamics is little, crushing precision is low, the noise is big, crushing ability is weak. However, the high-frequency breaking hammer has the defects of complex structure, high maintenance difficulty, high production cost, short service life and high popularization difficulty.

Disclosure of Invention

The invention aims to avoid the defects in the prior art and provides a hydraulic impact breaker which mainly comprises a machine body, a drill rod, a vibration box, a swing frame, a damping air bag and a hydraulic pipe, wherein the machine body is provided with an excavator connecting hole correspondingly matched with an excavator forearm, one end of the swing frame positioned in the machine body is hinged to the machine body through a swing frame connecting shaft, the other end of the swing frame is hinged with the vibration box, the vibration box is correspondingly connected with a hydraulic system of an excavator through the hydraulic pipe, the top end of the vibration box is provided with the damping air bag, the tail end of the vibration box is connected with the drill rod, an upper driven shaft, a driving shaft and a lower driven shaft which are positioned in the middle and on the same axis and on the same plane are arranged in the vibration box, the driving shaft is respectively provided with an eccentric wheel and a gear, the driving shaft gear is respectively meshed with the upper driven shaft and the lower driven shaft, and a driving motor is arranged on the driving shaft, the driving motor can be correspondingly connected with a hydraulic system of the excavator through a hydraulic pipe.

Further, the gear include driving gear, last driven gear and driven gear down, and the gear diameter is the same, driving gear, last driven gear and driven gear down install respectively on driving shaft, last driven shaft and driven shaft down.

Furthermore, the driving motor drives the driving shaft to rotate under the control of the hydraulic system of the excavator, and indirectly drives the upper driven shaft and the lower driven shaft which are meshed with the driving shaft to rotate.

Further, when the upper driven shaft, the driving shaft and the lower driven shaft are in a vertical state, the eccentric wheels on the upper driven shaft, the driving shaft and the lower driven shaft are set to simultaneously droop to the bottom position, the forward rotation angle of the driving shaft eccentric wheel is consistent with the reverse rotation angle of the driven shaft eccentric wheel, and the driving shaft eccentric wheel and the driven shaft eccentric wheel respectively rotate 180 degrees and then simultaneously reach the top position.

Further, the top end of the vibration box is provided with a damping air bag, when the eccentric wheel rotates upwards to reach the top position gradually, the damping air bag gradually tends to the inner wall of the machine body, and the damping air bag is extruded and generates reaction force to rebound.

The invention has the following beneficial effects: simple structure, strong durability, low maintenance difficulty, low production cost, large crushing force, high precision, low noise and strong crushing capability.

Drawings

FIG. 1 is a schematic view of the structure of a hydraulic impact breaker according to the present invention.

FIG. 2 is a schematic structural diagram of a vibration box, a swing frame and a damping air bag of the hydraulic impact crusher.

Detailed Description

The substance of the present invention will be described in further detail with reference to specific examples.

In the figure: 1-machine body 2-drill rod 3-excavator connecting hole 4-hydraulic pipe 5-swing frame connecting shaft 6-vibration box connecting shaft 7-vibration box 8-swing frame 9-driving shaft 10-vibration-damping air bag 11-eccentric wheel 12-upper driven shaft 13-lower driven shaft.

As shown in attached drawing, the main components of the hydraulic impact breaker comprise a machine body 1, a drill rod 2, a vibration box 7, a swing frame 8, a damping air bag 10 and a hydraulic pipe 4. The machine body 1 is provided with an excavator connecting hole 3 correspondingly matched with the front arm of the excavator, and the machine body 1 is connected to the excavator through the excavator connecting hole 3. One end of a swing frame 8 positioned in the machine body 1 is hinged to the machine body 1 through a swing frame connecting shaft 5, the other end of the swing frame 8 is hinged to a vibration box 6, the vibration box 6 is also positioned in the machine body 1, and the vibration box 6 has a space capable of moving up and down due to the action of the hinge. The vibrating box 6 is correspondingly connected with a hydraulic system of an excavator through a hydraulic pipe 4, the top end of the vibrating box 6 is provided with a damping air bag 10, the tail end of the damping air bag is connected with the drill rod 2, an upper driven shaft 12, a driving shaft 9 and a lower driven shaft 13 which are arranged on the same axis and the same plane are arranged in the vibrating box 6, the driving shaft 9 is located in the middle, the upper driven shaft 12, the driving shaft 9 and the lower driven shaft 13 are all provided with eccentric wheels 4 and gears, the gears of the driving shaft 9 are respectively meshed with the upper driven shaft 12 and the lower driven shaft 13, the driving shaft 9 is provided with a driving motor, and the driving motor is correspondingly connected with the hydraulic system of the excavator through the hydraulic pipe 4. The gear include driving gear, last driven gear and lower driven gear, and the gear diameter is the same, driving gear, last driven gear and lower driven gear install respectively on driving shaft 9, last driven shaft 12 and lower driven shaft 13. The driving motor drives the driving shaft 9 to rotate under the control of a hydraulic system of the excavator, and indirectly drives the upper driven shaft 12 and the lower driven shaft 13 which are meshed with the driving shaft 9 to rotate. When the upper driven shaft 12, the driving shaft 9 and the lower driven shaft 13 are in a vertical state, the eccentric wheels on the upper driven shaft 12, the driving shaft 9 and the lower driven shaft 13 are set to simultaneously droop to the bottom position, the forward rotation angle of the driving shaft eccentric wheel 4 is consistent with the reverse rotation angle of the driven shaft eccentric wheel 4, the eccentric wheels respectively rotate 180 degrees and simultaneously reach the top position, then the eccentric wheels drop to the bottom to complete one rotation period, the drill rod 2 connected with the tail end of the vibration box 6 also completes one up-and-down movement period, and the period can reach thousands of times per minute according to the power provided by a hydraulic system of the excavator, which is higher than the crushing frequency of hundreds of times of currently and commonly used equipment. The top end of the vibration box 6 is provided with a damping air bag 10, when the eccentric wheel 4 rotates upwards and gradually reaches the top position, the damping air bag 10 gradually tends to the inner wall of the machine body 1, and the damping air bag 10 is extruded and generates reaction force to rebound.

When the hydraulic impact crusher is used, after a machine body 1 and a hydraulic pipe 4 are correspondingly connected with an excavator, the excavator is started, a driving motor drives a driving shaft 9 and a gear thereof to rotate, at the moment, a corresponding upper driven shaft 12, a corresponding lower driven shaft 13 and the gear thereof follow up in a reverse direction, corresponding eccentric wheels 11 respectively rotate around a shaft in a forward direction and a reverse direction, the eccentric wheels 3 can reach the top and the bottom simultaneously no matter in the forward direction and the reverse direction in a period, and the up-and-down reciprocating motion of a vibration box 6 is realized under the limitation of a hinge, so that the up-and-down reciprocating motion of a drill rod 2 is driven. Through practical use tests of nearly 3 years, the beneficial effects of strong durability, large crushing force, high precision, low noise and high crushing efficiency are achieved.

Claims

1. The utility model provides a hydraulic shock breaker, the essential element includes organism, drill rod, vibrating bin, thousand years frame, shock attenuation gasbag and hydraulic pressure pipe, its characterized in that: an excavator connecting hole (3) correspondingly matched with an excavator forearm is formed in the excavator body (1), one end of a swing frame (8) located in the excavator body (1) is hinged to the excavator body (1) through a swing frame connecting shaft (5), the other end of the swing frame (8) is hinged to a vibration box (6), the vibration box (6) is correspondingly connected with a hydraulic system of the excavator through a hydraulic pipe (4), a damping air bag (10) is arranged at the top end of the vibration box (6), the tail end of the vibration box is connected with a drill rod (2), an upper driven shaft (12), a driving shaft (9) and a lower driven shaft (13) are arranged in the vibration box (6) and are located on the same axis and the same plane, the driving shaft (9) is located in the middle, eccentric wheels (4) and gears are mounted on the upper driven shaft (12), the driving shaft (9) and the lower driven shaft (13), and the gears of the driving shaft (9) are respectively connected with the upper driven shaft (12), The lower driven shaft (13) is meshed, the driving shaft (9) is provided with a driving motor, and the driving motor can be correspondingly connected with a hydraulic system of the excavator through a hydraulic pipe (4).

2. The hydraulic impact breaker of claim 1 wherein: the gear include driving gear, last driven gear and driven gear down, and the gear diameter is the same, driving gear, last driven gear and driven gear down install respectively on driving shaft (9), last driven shaft (12) and driven shaft (13) down.

3. The hydraulic impact breaker according to claim 1 or 2, characterized in that: the driving motor (14) drives the driving shaft (9) to rotate under the control of the excavator hydraulic system, and indirectly drives the upper driven shaft (12) and the lower driven shaft (13) which are meshed with the driving shaft (9) to rotate.

4. A hydraulic impact breaker according to claim 1, 2 or 3 wherein: when the upper driven shaft (12), the driving shaft (9) and the lower driven shaft (13) are in a vertical state, the eccentric wheels on the upper driven shaft (12), the driving shaft (9) and the lower driven shaft (13) are set to simultaneously droop to the bottom position, the positive rotation angle of the driving shaft eccentric wheel (4) is consistent with the reverse rotation angle of the driven shaft eccentric wheel (4), and the driving shaft eccentric wheel and the driven shaft eccentric wheel rotate 180 degrees respectively and then simultaneously reach the top position.

5. The hydraulic impact breaker of claim 1 wherein: the top end of the vibration box (6) is provided with a damping air bag (10), when the eccentric wheel (4) rotates upwards to gradually reach the top position, the damping air bag (10) gradually tends to the inner wall of the machine body (1), and the damping air bag (10) is extruded to generate reaction force to rebound.