CN113522407B

CN113522407B - Crushing device

Info

Publication number: CN113522407B
Application number: CN202010283856.XA
Authority: CN
Inventors: 陈涛; 王建辉; 李滨; 刘永红; 董红卫; 王鲁君; 张宝林; 陈建平; 张全民; 徐艳
Original assignee: Hebei Huabei Petroleum Engineering Construction Co ltd; China National Petroleum Corp; China Petroleum Pipeline Engineering Corp
Current assignee: Hebei Huabei Petroleum Engineering Construction Co ltd; China National Petroleum Corp; China Petroleum Pipeline Engineering Corp
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2023-07-25
Anticipated expiration: 2040-04-13
Also published as: CN113522407A

Abstract

The application discloses breaker belongs to pipeline construction technical field. The device comprises a first breaking hammer, a second breaking hammer, a supporting frame and a control mechanism; the control mechanism can be respectively connected with the first breaking hammer and the second breaking hammer to control the first breaking hammer and the second breaking hammer to strike alternately, so that when the first breaking hammer falls down, the second breaking hammer is lifted, and when the first breaking hammer is lifted, the second breaking hammer falls down, and compared with the prior art in which breaking is carried out by one breaking hammer, the number of times of breaking in one period is increased, the breaking capacity is enhanced, and the construction efficiency is improved. In addition, the support frame is located between the first breaking hammer and the second breaking hammer and is connected with the first breaking hammer and the second breaking hammer respectively, so that the stability of the device in the process of alternately striking the first breaking hammer and the second breaking hammer can be ensured.

Description

Crushing device

Technical Field

The application relates to the technical field of pipeline construction, in particular to a crushing device.

Background

At present, in the process of crushing and excavating a pipe ditch in a stone square section, the crushing of the extra-hard stone can reach 3.5 cubic meters per day, and the crushing of the extra-hard stone can reach 15 cubic meters per day. It can be seen that the excavation construction of stone side ditches such as the hard stone, the extra hard stone and the like is a difficult point in the pipeline construction.

In the related art, a single breaking hammer may be used to break stone such as hard stone and extra hard stone. The single breaking hammer comprises a drill rod and a control part. One end of the control component is connected with the excavator, the other end of the control component is connected with the drill rod, and the drill rod can be controlled to lift and fall through the control component, so that stone crushing is realized.

Disclosure of Invention

The embodiment of the application provides a breaker, can solve breaker crushing capacity not enough among the correlation technique, the problem that the efficiency of construction is low. The technical scheme is as follows:

in one aspect, a crushing device, the crushing device comprising: a first breaking hammer 01, a second breaking hammer 02, a supporting frame 03 and a control mechanism 04;

the first breaking hammer 01 and the second breaking hammer 02 are connected with the supporting frame 03, and the supporting frame 03 is positioned between the first breaking hammer 01 and the second breaking hammer 02;

the control mechanism 04 is located on the supporting frame 03, and the control mechanism 04 is respectively connected with the first breaking hammer 01 and the second breaking hammer 02, and the control mechanism 04 is used for controlling the first breaking hammer 01 and the second breaking hammer 02 to strike alternately.

Optionally, the first breaking hammer 01 includes a first drill rod 011, a first cylinder 012 and a first control valve 013, the first drill rod 011 is located in a first cavity 0121 of the first cylinder 012, a first through hole 0123 and a second through hole 0124 are provided on a cavity wall of the first cavity 0121, the first through hole 0123 and the second through hole 0124 are both connected with the first control valve 013, the first control valve 013 is located in a second cavity 0122 of the first cylinder 012, and the first control valve 013 is connected with the control mechanism 04.

Optionally, a first oil inlet channel is disposed on a side wall of the second cavity 0122, one end of the first oil inlet channel is connected with an oil inlet of the first control valve 013, and the other end of the first oil inlet channel is connected with the control mechanism 04.

Alternatively, an oil outlet of the first control valve 013 is communicated with the first through hole 0123, and an oil return port of the first control valve 013 is communicated with the second through hole 0124.

Optionally, the first drill rod 011 includes a first piston rod 0111 and a first impact head 0112, an upper end of the first impact head 0112 is connected with a lower end of the first piston rod 0111, and when the first impact head 0111 runs to a lowest of the travel, the first piston rod 0111 seals the first through hole 0123, and the second through hole 0124 communicates with the first cavity 0121.

Optionally, the second breaking hammer 02 includes a second drill rod, a second cylinder body and a second control valve, the second drill rod is located in a third cavity of the second cylinder body, a third through hole and a fourth through hole are formed in a cavity wall of the third cavity, the third through hole and the fourth through hole are all connected with the second control valve, the second control valve is located in a fourth cavity of the second cylinder body, and the second control valve is connected with the control mechanism 04.

Optionally, a second oil inlet channel is arranged on the side wall of the third cavity, one end of the second oil inlet channel is connected with an oil inlet of the second control valve, and the other end of the second oil inlet channel is connected with the control mechanism 04.

Optionally, an oil outlet of the second control valve is communicated with the third through hole, and an oil return port of the second control valve is communicated with the fourth through hole.

Optionally, the second drill rod includes a second piston rod and a second impact head, the upper end of the second impact head is connected with the lower end of the second piston rod, and when the second impact head moves to the lowest part of the stroke, the second piston rod plugs the third through hole, and the fourth through hole is communicated with the third cavity.

Optionally, the control mechanism 04 includes a shuttle valve 041 and a control signal device 042, a first oil outlet of the shuttle valve 041 is connected with the first breaking hammer 01, a second oil outlet of the shuttle valve 041 is connected with the second breaking hammer 02, a control signal end of the shuttle valve 041 is connected with the control signal device 042, the control signal device 042 is used for generating a first signal and a second signal, the first signal is used for controlling the first oil outlet of the opening shuttle valve 041 to be opened, the second oil outlet is closed, and the second signal is used for controlling the first oil outlet of the shuttle valve 041 to be closed, and the second oil outlet is opened.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects:

the breaker that this embodiment provided includes first quartering hammer, second quartering hammer, support frame and control mechanism, wherein, control mechanism can be connected with first quartering hammer and second quartering hammer respectively, in order to control first quartering hammer and second quartering hammer and strike in turn, like this, when first quartering hammer falls down, the second quartering hammer lifts up, when first quartering hammer lifts up, the second quartering hammer falls down, carries out the breakage by a quartering hammer in the correlation technique, increased the number of times of broken in the one cycle, strengthened the crushing ability, improved efficiency of construction. In addition, the support frame is located between the first breaking hammer and the second breaking hammer and is connected with the first breaking hammer and the second breaking hammer respectively, so that the stability of the device in the process of alternately striking the first breaking hammer and the second breaking hammer can be ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a crushing device according to an embodiment of the present application;

fig. 2 is a schematic structural view of a first breaking hammer and a control mechanism according to an embodiment of the present application.

Reference numerals:

01: first breaking hammer, 02: second breaking hammer, 03: support frame, 04: control mechanism, 011: first drill rod 012: first cylinder body, 013: first control valve, 0111: first piston rod, 0112: first impact head, 0121: first cavity, 0122: second cavity, 0123: first through hole, 0124: second via, 041: shuttle valve, 042: control signal means.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a crushing device according to an embodiment of the present application, as shown in fig. 1, the crushing device includes: a first breaking hammer 01, a second breaking hammer 02, a supporting frame 03 and a control mechanism 04; the first breaking hammer 01 and the second breaking hammer 02 are connected with the supporting frame 03, and the supporting frame 03 is positioned between the first breaking hammer 01 and the second breaking hammer 02; the control mechanism 04 is positioned on the supporting frame 03, and the control mechanism 04 is respectively connected with the first breaking hammer 01 and the second breaking hammer 02, and the control mechanism 04 is used for controlling the first breaking hammer 01 and the second breaking hammer 02 to strike alternately.

In this embodiment of the application, because the control mechanism 04 can be connected with the first breaking hammer 01 and the second breaking hammer 02 respectively to control the first breaking hammer 01 and the second breaking hammer 02 to strike alternately, therefore, when the first breaking hammer 01 falls down, the second breaking hammer 02 lifts up, and when the first breaking hammer 01 lifts up, the second breaking hammer 02 falls down, and compared with the breaking by one breaking hammer in the related art, the number of times of breaking in one period is increased, the breaking capacity is enhanced, and the construction efficiency is improved. In addition, the support frame 03 is located between the first breaking hammer 01 and the second breaking hammer 02 and is respectively connected with the first breaking hammer 01 and the second breaking hammer 02, so that stability of the device in the process of alternately striking the first breaking hammer 01 and the second breaking hammer 02 can be ensured.

Referring to fig. 2, the first breaking hammer 01 may include a first drill rod 011, a first cylinder 012 and a first control valve 013, where the first drill rod 011 is located in a first cavity 0121 of the first cylinder 012, a first through hole 0123 and a second through hole 0124 are provided on a cavity wall of the first cavity 0121, the first through hole 0123 and the second through hole 0124 are both connected with the first control valve 013, the first control valve 013 is located in a second cavity 0122 of the first cylinder 012, and the first control valve 013 is connected with the control mechanism 04.

It should be noted that the first drill rod 011 may include a first piston rod 0111 and a first impact head 0112, where, as shown in fig. 2, the first piston rod 0111 may be a stepped shaft. The stepped shaft may be divided into five parts, wherein the diameter of the first part is smaller than the diameter of the second part, which is larger than the diameter of the third part, which is smaller than the diameter of the fourth part, which is larger than the diameter of the fifth part, in order from top to bottom, as an example. Wherein the diameter of the first portion, the diameter of the third portion and the diameter of the fifth portion may be the same, and the diameter of the second portion and the diameter of the fourth portion may be the same. The length of the third portion may be set according to the stroke of the first piston rod 0111, and the setting method will be described later.

The first impact head 0112 may be a shovel impact head for rock breaking. In addition, as shown in fig. 2, a first groove may be further formed on the outer wall of the first impact head 0112 near the upper end.

In addition, the lower end of the first piston rod 0111 is connected to the upper end of the first impact head 0112. For example, the lower end surface of the first piston rod 0111 may be directly welded to the upper end surface of the first impact head 0112, or threads may be provided on the sidewall of the lower end of the first piston rod 0111 and the sidewall of the upper end of the first impact head 0112, in which case, two ends of a joint may be connected to the lower end of the first piston rod 0111 and the upper end of the first impact head 0112, respectively, so that the connection between the first piston rod 0111 and the first impact head 0112 is achieved, and thus, replacement of the impact head may be facilitated.

Alternatively, the first drill rod 011 may be an integrally formed drill rod, unlike the previous embodiments, the piston rod and the impact head need not be connected, i.e., they are integrally formed, but the first drill rod 011 may still be shaped as described above.

It should be noted that, the first drill rod 011 is located in the first cavity 0121 of the first cylinder 012, as shown in fig. 2, the first cavity 0121 may be divided into two parts, and the diameter of the upper part may be equal to the maximum diameter of the first piston rod 0111. The diameter of the lower portion may be equal to the maximum diameter of the first impact head 0112. In addition, a second groove having a certain width may be provided on the inner cavity wall of the lower portion of the first cavity 0121 along the circumferential direction, and the width of the second groove may be equal to or slightly greater than the first groove provided on the outer wall of the first impact head 0112. Limiting balls can be placed in the first groove and the second groove to limit the up-down movement distance of the first impact head 0112.

In addition, in the embodiment of the present application, the cavity wall of the first cavity 0121 may further be provided with a first through hole 0123 and a second through hole 0124. Referring to fig. 2, the first through hole 0123 may be located above the second through hole 0124. Wherein, the first through hole 0123 and the second through hole 0124 may be both connected with the first control valve 013.

It should be noted that, the positions of the first through hole 0123 and the second through hole 0124 may be determined according to the length of the third portion of the first piston rod 0111, so long as it is ensured that the second portion of the first piston rod 0111 can just block the first through hole 0123 when the first piston rod 0111 moves down to the lowest end, and the second through hole 0124 just faces the third portion, and the fourth portion of the first piston rod 0111 can just block the second through hole 0124 when the first piston rod 0111 moves up to the uppermost end, and the first through hole 0123 just faces the third portion. When the first piston rod 0111 moves to the lowest position, the first impact head 0112 also moves to the lowest position of the stroke, and when the first piston rod 0111 moves to the highest position, the first impact head 0112 also moves to the highest position of the stroke, so that the first piston rod 0111 can be enabled to block the first through hole 0121 and enable the second through hole 0124 to be communicated with the first cavity 0121 when the first impact head 0111 moves to the lowest position of the stroke, and when the first impact head 0111 moves to the highest position of the stroke, the first piston rod 0111 can be enabled to block the second through hole 0124 and enable the first through hole 0123 to be communicated with the first cavity 0121.

In addition, in the embodiment of the present application, referring to fig. 2, the first through hole 0123 and the second through hole 0124 may be both connected to the first control valve 013. Wherein the first control valve 013 may be located in the second cavity 0122 of the first cylinder 012. Illustratively, the first control valve 013 may be a reversing valve, and the first control valve 013 may comprise an oil outlet, an oil return port, and an oil inlet. Wherein, the oil outlet can be connected with the first through hole 0123, the oil return port can be connected with the second through hole 0124, and the oil inlet can be connected with the control mechanism 04.

It should be noted that, a first oil outlet channel and a first oil return channel may be further disposed in the first cylinder 012, where an oil outlet of the first control valve 013 may be communicated with the first through hole 0123 through the first oil outlet channel, and an oil return port of the first control valve 013 may be connected with the second through hole 0124 through the first oil return channel.

Alternatively, in one possible implementation manner, the first oil outlet channel and the first oil return channel may also be two oil pipes placed in the first cylinder 012, correspondingly, the inner walls of the outer ends of the first through hole 0123 and the second through hole 0124 may be provided with threads, the first oil outlet channel may be connected with the first through hole 0123 through the threads so as to implement communication between the first oil outlet channel and the second through hole 0124, and similarly, the second oil return channel may also be connected with the second through hole 0124 through the threads so as to implement communication between the first oil outlet channel and the second oil return channel.

Alternatively, in another possible implementation manner, the first oil outlet channel may be a section of cavity in the first cylinder 012, which communicates with the first through hole 0123, and the other end of the first oil outlet channel communicates with the second cavity 0122, in which case, a thread may be disposed on an inner wall of the other end of the first oil outlet channel, and the other end of the first oil outlet channel may be connected with one end of a tubular connector through the thread, and the other end of the tubular connector may be connected with an oil outlet of the first control valve 013. Similarly, the first oil return channel may be a section of cavity in the first cylinder 012 that is communicated with the second through hole 0124, and the other end of the first oil return channel is communicated with the second cavity 0122, in this case, a thread may be disposed on an inner wall of the other end of the first oil return channel, and the other end of the first oil return channel may be connected with one end of a tubular connector through the thread, and the other end of the tubular connector may be connected with an oil return port of the first control valve 013.

In addition, an oil inlet of the first control valve 013 may be connected to the control mechanism 04. In the present embodiment, the control mechanism 04 may include a shuttle valve 041 and a control signal device 042. Wherein the shuttle valve 041 may include a first oil outlet, a second oil outlet, and a control signal terminal. The first oil outlet of the shuttle valve 041 may be connected with the first breaking hammer 01. Illustratively, the first oil outlet of the shuttle valve 041 may be connected to the oil inlet of the first control valve 013 in the first breaking hammer 01 described above. The second oil outlet of the shuttle valve 041 may be connected to the second breaking hammer 02, and the control signal end of the shuttle valve 041 may be connected to the control signal device 042.

It should be noted that, the second breaking hammer 02 may include a second drill rod, a second cylinder body and a second control valve, where the second drill rod is located in a third cavity of the second cylinder body, a third through hole and a fourth through hole are provided on a cavity wall of the third cavity, the third through hole and the fourth through hole are both connected with the second control valve, the second control valve is located in a fourth cavity of the second cylinder body, and the second control valve is connected with the control mechanism 04.

As an example, the second drill rod may comprise a second piston rod and a second impact head, wherein the second piston rod may be a stepped shaft. The stepped shaft may be divided into five parts, wherein the diameter of the first part is smaller than the diameter of the second part, which is larger than the diameter of the third part, which is smaller than the diameter of the fourth part, which is larger than the diameter of the fifth part, in order from top to bottom, as an example. Wherein the diameter of the first portion, the diameter of the third portion and the diameter of the fifth portion may be the same, and the diameter of the second portion and the diameter of the fourth portion may be the same. The length of the third portion may be set according to the stroke of the first piston rod 0111, and the setting method will be described later.

The second impact head may be a shovel impact head for rock breaking. In addition, a third groove can be arranged on the outer wall of the second impact head close to the upper end.

In addition, the lower end of the second piston rod is connected with the upper end of the second impact head. The lower end surface of the second piston rod may be welded directly to the upper end surface of the second impact head, or threads may be provided on the side wall of the lower end of the second piston rod and on the side wall of the upper end of the second impact head, in which case two ends of a joint may be connected to the lower end of the second piston rod and the upper end of the second impact head, respectively, so as to realize connection of the second piston rod and the second impact head, and thus, replacement of the impact head may be facilitated.

It should be noted that the second drill rod is located in the third cavity of the second cylinder body, the third cavity may be divided into two parts, and the diameter of the upper part may be equal to the maximum diameter of the second piston rod. The diameter of the lower portion may be equal to the maximum diameter of the second impact head. In addition, a fourth groove having a certain width may be provided in the circumferential direction on the inner cavity wall of the lower portion of the third cavity, and the width of the fourth groove may be equal to or slightly larger than the aforementioned third groove provided on the outer wall of the second impact head. Limiting balls can be placed in the third groove and the fourth groove to limit the up-down movement distance of the first impact head 0112.

In addition, in the embodiment of the application, a third through hole and a fourth through hole may be further disposed on a cavity wall of the third cavity. The third through hole may be located above the fourth through hole. Wherein the third through hole and the fourth through hole may be both connected with the second control valve.

It should be noted that, the positions of the third through hole and the fourth through hole may be designed in accordance with the length of the third portion of the second piston rod, so long as it is ensured that the second portion of the second piston rod can just block the third through hole when the second piston rod moves down to the lowermost end, the fourth through hole just faces the third portion, and the fourth portion of the second piston rod can just block the fourth through hole when the second piston rod moves up to the uppermost end, and the third through hole just faces the third portion. When the second piston rod moves to the lowest position, the second impact head also moves to the lowest position of the stroke, and when the second piston rod moves to the highest position, the second impact head also moves to the highest position of the stroke, so that the second piston rod can be used for blocking the third through hole when the second impact head moves to the lowest position of the stroke, the fourth through hole is communicated with the third cavity, and when the second impact head moves to the highest position of the stroke, the second piston rod can be used for blocking the fourth through hole, and the third through hole is communicated with the third cavity.

In addition, in the embodiment of the present application, the third through hole and the fourth through hole may each be connected to the second control valve. Wherein the second control valve may be located in the fourth cavity of the second cylinder. The second control valve may be, for example, a reversing valve, which may include an oil outlet, an oil return, and an oil inlet. The oil outlet can be connected with the third through hole, the oil return port can be connected with the fourth through hole, and the oil inlet can be connected with the control mechanism 04.

It should be noted that a second oil outlet channel and a second oil return channel may be further disposed in the second cylinder, where an oil outlet of the second control valve may be communicated with the third through hole through the second oil outlet channel, and an oil return port of the second control valve may be connected with the fourth through hole through the second oil return channel.

Optionally, in one possible implementation manner, the second oil outlet channel and the second oil return channel may also be two oil pipes placed in the second cylinder body, correspondingly, threads may be disposed on inner walls of outer ends of the third through hole and the fourth through hole, the second oil outlet channel may be connected with the third through hole through threads to achieve communication between the second oil outlet channel and the third through hole, and similarly, the second oil return channel may also be connected with the fourth through hole through threads to achieve communication between the second oil outlet channel and the fourth through hole.

Alternatively, in another possible implementation manner, the second oil outlet channel may be a section of cavity in the second cylinder body, which is communicated with the third through hole, and the other end of the second oil outlet channel is communicated with the fourth cavity, in this case, a thread may be disposed on an inner wall of the other end of the second oil outlet channel, and the other end of the second oil outlet channel may be connected with one end of a tubular connector through the thread, and the other end of the tubular connector may be connected with an oil outlet of the second control valve. Similarly, the second oil return channel may be a section of cavity in the second cylinder body and communicated with the fourth hole, and the other end of the second oil return channel is communicated with the fourth cavity, in this case, a thread may be disposed on an inner wall of the other end of the second oil return channel, and the other end of the second oil return channel may be connected with one end of a tubular joint through the thread, and the other end of the tubular joint may be connected with an oil return port of the second control valve.

As can be seen from the foregoing description, the shuttle valve 041 in the control mechanism 04 includes a second oil outlet, and the oil inlet of the second control valve may be connected to the second oil outlet of the shuttle valve 041, so as to implement connection between the second breaking hammer 02 and the control mechanism 04.

In addition, as can be seen from the foregoing description, the control mechanism 04 further includes a control signal device 042, and the control signal end of the shuttle valve 041 may be connected to the control signal device 042.

It should be noted that, the control signal device 042 may alternately generate the first signal and the second signal according to a preset period, where when the control signal device 042 generates the first signal, the shuttle valve 041 opens the first oil outlet and closes the second oil outlet under the control of the first signal, so as to output high-pressure signal oil to the first breaking hammer 01 to drive the first breaking hammer 01 to strike, and the second breaking hammer 02 does not strike. When the control signal device 042 generates a second signal, the second signal can control the shuttle valve 041 to open the second oil outlet and close the first oil outlet, so that high-pressure signal oil is output to the second breaking hammer 02 to drive the second breaking hammer 02 to strike. The preset period is the time period required from the beginning of falling striking to the beginning of lifting of the breaking hammer.

In addition, in the present embodiment, the control mechanism 04 may be located in the support frame 03, and the support frame 03 may be located between the first breaking hammer 01 and the second breaking hammer 02. Illustratively, the support 03 may be a rectangular parallelepiped having an internal cavity, the control mechanism 04 may be located in the rectangular parallelepiped, and one end of the support 03 may be welded to an upper end of the first cylinder 012 of the first breaking hammer 01 and the other end may be welded to an upper end of the second cylinder of the second breaking hammer 02, so that the support 03 may maintain stability of the two breaking hammers when they strike alternately.

Optionally, in this embodiment of the present application, a nitrogen chamber may be further disposed above the first cavity 0121 in the first breaking hammer 01 and the second breaking hammer 02, a through hole is opened below the nitrogen chamber, and the upper ends of the first piston rod 0111 and the second piston rod may respectively pass through the corresponding through holes and be located in the corresponding nitrogen chamber, so that when the first piston rod 0111 and the second piston rod are lifted, the lifting force may be buffered.

Next, the working process of the crushing device provided in the embodiment of the present application will be described.

When a control signal end in the control mechanism 04 generates a first signal, a first oil outlet of the shuttle valve 041 is opened, and a second oil outlet is closed, and at the moment, high-pressure signal oil can be output to the first breaking hammer 01 through the first oil outlet. After passing through the oil inlet of the first control valve 013, the high-pressure signal oil flows into the first oil outlet channel of the first breaking hammer 01 and enters the first cavity 0121 through the first through hole 0123, at this time, the first piston rod 0111 in the first cavity 0121 descends under the driving of the high-pressure signal oil to drive the first impact head 0112 to descend, namely, the first breaking hammer 01 strikes. When the first impact head 0112 descends to the bottommost end, the first through hole 0113 is plugged by the first piston rod 0111, the second through hole 0124 is opened, the first control valve 013 is reversed, at this time, signal oil in the first cavity 0121 enters the first oil return channel through the second through hole 0124 and flows out of the first cavity 0121, and the pressure in the first cavity 0121 is continuously reduced, so that the first piston rod 0111 ascends to drive the first impact head 0112 to ascend, namely the first breaking hammer 01 is lifted.

When the first breaking hammer 01 starts to lift, the control signal end generates a second signal. The second oil outlet of the shuttle valve 041 is opened, the first oil outlet is closed, and high-pressure signal oil is output to the second breaking hammer 02 through the second oil outlet. After passing through the oil inlet of the second control valve, the high-pressure signal oil flows into the second oil outlet channel of the second breaking hammer 02 and enters the third cavity through the third through hole, and at the moment, the second piston rod in the third cavity descends under the driving of the high-pressure signal oil to drive the second impact head to descend, namely, the second breaking hammer 02 blows. When the second impact head descends to the bottommost end, the third through hole is blocked by the second piston rod, the fourth through hole is opened, the second control valve is reversed, at the moment, signal oil in the third cavity enters the second oil return channel through the fourth through hole and flows out of the third cavity, and the second piston rod ascends to drive the second impact head to ascend, namely the second breaking hammer 02 is lifted up due to the fact that the pressure in the third cavity is continuously reduced.

Thus, the control mechanism 04 can control the second breaking hammer 02 to strike when the first breaking hammer 01 starts to lift after striking, and the first breaking hammer 01 strikes when the second breaking hammer 02 starts to lift after striking, so that the two striking periods can be cyclically performed, and the two striking periods can be different by half period, thereby realizing the alternate striking of the first breaking hammer 01 and the second breaking hammer 02.

The breaker that this embodiment provided includes first quartering hammer 01, second quartering hammer 02, support frame 03 and control mechanism 04, wherein, control mechanism 04 can be connected with first quartering hammer 01 and second quartering hammer 02 respectively, in order to control first quartering hammer 01 and second quartering hammer 02 to strike in turn, in this way, when first quartering hammer 01 falls down, second quartering hammer 02 lifts up, when first quartering hammer 01 lifts up, second quartering hammer 02 falls down, carries out the breakage by a quartering hammer in the correlation technique, increased the number of times of broken in the one cycle, strengthened crushing capacity, improved efficiency of construction. In addition, the support frame 03 is located between the first breaking hammer 01 and the second breaking hammer 02 and is respectively connected with the first breaking hammer 01 and the second breaking hammer 02, so that stability of the device in the process of alternately striking the first breaking hammer 01 and the second breaking hammer 02 can be ensured.

In addition, the striking periods of the first breaking hammer 01 and the second breaking hammer 02 can be different by half period, so that impact forces of the first breaking hammer 01 and the second breaking hammer on the excavator and other structural members can be mutually offset, and the excavator and other structural members can be well protected.

The foregoing description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, since it is intended that all modifications, equivalents, improvements, etc. that fall within the spirit and scope of the invention.

Claims

1. A crushing device, characterized in that it comprises: the device comprises a first breaking hammer (01), a second breaking hammer (02), a supporting frame (03) and a control mechanism (04);

the first breaking hammer (01) and the second breaking hammer (02) are connected with the supporting frame (03), and the supporting frame (03) is positioned between the first breaking hammer (01) and the second breaking hammer (02);

the control mechanism (04) is positioned on the supporting frame (03), the control mechanism (04) is respectively connected with the first breaking hammer (01) and the second breaking hammer (02), and the control mechanism (04) is used for controlling the first breaking hammer (01) and the second breaking hammer (02) to strike alternately;

the first breaking hammer (01) comprises a first drill rod (011), a first cylinder body (012) and a first control valve (013), wherein the first drill rod (011) is positioned in a first cavity (0121) of the first cylinder body (012), a first through hole (0123) and a second through hole (0124) are formed in the cavity wall of the first cavity (0121), the first drill rod (011) comprises a first piston rod (0111) and a first impact head (0112), and the upper end of the first impact head (0112) is connected with the lower end of the first piston rod (0111);

the first control valve (013) is positioned in the second cavity (0122) of the first cylinder body (012) and is connected with the control mechanism (04); a first oil inlet channel is formed in the side wall of the second cavity (0122), an oil inlet of the first control valve (013) is connected with one end of the first oil inlet channel, an oil outlet of the first control valve (013) is communicated with the first through hole (0123), and an oil return port of the first control valve (013) is communicated with the second through hole (0124);

when the first impact head (0112) runs to the lowest part of the stroke, the first piston rod (0111) seals the first through hole (0123), and the second through hole (0124) is communicated with the first cavity (0121); and when the first impact head (0112) runs to the uppermost part of the stroke, the first piston rod (0111) seals the second through hole (0124), and the first through hole (0123) is communicated with the first cavity (0121);

the second breaking hammer (02) comprises a second drill rod, a second cylinder body and a second control valve, the second drill rod is positioned in a third cavity of the second cylinder body, a third through hole and a fourth through hole are formed in the cavity wall of the third cavity, the second drill rod comprises a second piston rod and a second impact head, and the upper end of the second impact head is connected with the lower end of the second piston rod;

the second control valve is positioned in a fourth cavity of the second cylinder body and is connected with the control mechanism (04); a second oil inlet channel is formed in the side wall of the fourth cavity, an oil inlet of the second control valve is connected with one end of the second oil inlet channel, an oil outlet of the second control valve is communicated with the third through hole, and an oil return port of the second control valve is communicated with the fourth through hole;

when the second impact head moves to the lowest part of the stroke, the second piston rod plugs the third through hole, and the fourth through hole is communicated with the third cavity; and when the second impact head runs to the uppermost part of the stroke, the second piston rod plugs the fourth through hole, and the third through hole is communicated with the third cavity.

2. A crushing device according to claim 1, characterized in that the other end of the first oil feed channel is connected to the control means (04).

3. A crushing device according to claim 1, characterized in that the other end of the second oil feed channel is connected to the control means (04).

4. A crushing device according to any one of claims 1-3, wherein the control means (04) comprises a shuttle valve (041) and control signal means (042), a first oil outlet of the shuttle valve (041) being connected to the first crushing hammer (01), a second oil outlet of the shuttle valve (041) being connected to the second crushing hammer (02), a control signal end of the shuttle valve (041) being connected to the control signal means (042), the control signal means (042) being arranged to generate a first signal for controlling opening of the first oil outlet of the shuttle valve (041) and a second signal for controlling closing of the first oil outlet of the shuttle valve (041), the second oil outlet being open.