CN214404153U

CN214404153U - Reversing valve for breaking hammer

Info

Publication number: CN214404153U
Application number: CN202023228506.8U
Authority: CN
Inventors: 李雅静
Original assignee: Weihai Jianghe Hydraulic Technology Co ltd
Current assignee: Weihai Jianghe Hydraulic Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-15
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a switching-over valve for quartering hammer, including valve body, case, connecting rod, locating lever, spring, liquid outlet, cooling chamber, sealing plug, screw rod, servo motor, slider, guard box, spout, baffle, fan and gas pocket, the internally mounted of valve body has the case, and the left end of case is connected with the connecting rod, the locating lever is installed to the right-hand member of case, and the outside of locating lever is provided with the spring, the liquid outlet has all been seted up to the upper and lower both sides of case, and the cooling chamber has been seted up in the outside of liquid outlet, the sealing plug is installed in the upper right corner of cooling chamber, the screw rod is installed to the left end of connecting rod, and the left end of screw rod is connected with servo motor, the slider is all installed to servo motor's upper and lower both sides, and servo motor's the outside is provided with the guard box. This device sets up the cooling chamber and hugs closely the valve body to in time carry out cooling treatment to the valve body, be favorable to avoiding the valve body inside to be in high temperature state and damage the device, be favorable to prolonging the life of device.

Description

Reversing valve for breaking hammer

Technical Field

The utility model relates to a switching-over valve technical field, specific switching-over valve for quartering hammer that says so.

Background

The power source of the hydraulic breaking hammer is pressure oil provided by a pump station of an excavator or a loader, and the hydraulic breaking hammer can effectively clean floating stones and soil in rock gaps in the excavation of the foundation of a building. The principle of selecting the hydraulic breaking hammer is to select the most suitable hydraulic breaking hammer according to the model of the excavator and the operation environment, the flow direction of hydraulic oil is changed by a common reversing valve in the hydraulic breaking hammer, at present, most of the conventional reversing valves are manual type and hydraulic type, the reversing precision is poor, the hydraulic breaking hammer is easy to damage, the valve body has poor heat dissipation effect, and the hydraulic breaking hammer is not suitable for being used by being quickly reversed for multiple times.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a switching-over valve for quartering hammer.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a reversing valve for a breaking hammer comprises a valve body, a valve core, a connecting rod, a positioning rod, a spring, a liquid outlet, a cooling chamber, a sealing plug, a screw rod, a servo motor, a sliding block, a protection box, a sliding groove, a partition plate, a fan and an air hole, wherein the valve core is installed inside the valve body, the left end of the valve core is connected with the connecting rod, the positioning rod is installed at the right end of the valve core, the spring is arranged outside the positioning rod, the liquid outlet is formed in the upper side and the lower side of the valve core, the cooling chamber is formed outside the liquid outlet, the sealing plug is installed at the upper right corner of the cooling chamber, the screw rod is installed at the left end of the connecting rod, the servo motor is connected at the left end of the screw rod, the sliding block is installed on the upper side and the lower side of the servo motor, the protection box is arranged outside the servo motor, the sliding groove is formed in the inner walls of the upper side and the lower side of the protection box, and the partition plate is installed at the left end of the protection box, the inside of baffle is seted up the gas pocket, and the internal surface of baffle is fixed with the fan.

The locating lever runs through the inside of spring, and the locating lever passes through to constitute elastic construction between spring and the valve body.

The structure of the cooling chamber is a hollow structure, and a sealing structure is formed between the cooling chamber and the sealing plug.

The screw rod is rotatably connected with the connecting rod, and the screw rod is in threaded connection with the valve body.

A rotating structure is formed between the screw rod and the servo motor, and the servo motor forms a sliding structure through the sliding block and the sliding groove.

The air hole forms a communicating structure through the fan and the protection box, and the air hole penetrates through the inside of the partition plate.

The utility model has the advantages that: the device is provided with a valve core which can utilize the elastic action between a positioning rod and a spring to pull the valve core so as to assist the rebound reset of the valve core, is favorable for reducing the energy consumption of driving equipment, is provided with a cooling chamber to be tightly attached to the valve body so as to cool and cool the valve body in time, is favorable for avoiding devices from being damaged due to high temperature inside the valve body, is favorable for prolonging the service life of each device, is provided with a screw rod which can be screwed in or screwed out relative to the valve body and can rotate around a connecting rod so as to drive the valve core to move left and right and realize reversing operation, is provided with a servo motor to drive the whole reversing valve to carry out reversing operation, is relatively manual and hydraulic reversing valves, has higher reversing precision of the whole reversing valve, is not easy to damage in the whole structure and safer to use, and is provided with a fan which can accelerate the air circulation inside a protection box so as to help the servo motor to radiate heat in time, the stability of the working performance of the servo motor is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation structure of the protection box and the servo motor of the present invention;

fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention.

In the figure: 1. a valve body; 2. a valve core; 3. a connecting rod; 4. positioning a rod; 5. a spring; 6. a liquid outlet; 7. a cooling chamber; 8. a sealing plug; 9. a screw; 10. a servo motor; 11. a slider; 12. a protection box; 13. a chute; 14. a partition plate; 15. a fan; 16. and (4) air holes.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a reversing valve for a breaking hammer comprises a valve body 1, a valve core 2, a connecting rod 3, a positioning rod 4, a spring 5, a liquid outlet 6, a cooling chamber 7, a sealing plug 8, a screw 9, a servo motor 10, a slide block 11, a protection box 12, a chute 13, a partition plate 14, a fan 15 and an air hole 16, wherein the valve core 2 is installed inside the valve body 1, the connecting rod 3 is connected with the left end of the valve core 2, the positioning rod 4 is installed at the right end of the valve core 2, the spring 5 is arranged outside the positioning rod 4, the liquid outlet 6 is respectively arranged at the upper side and the lower side of the valve core 2, the cooling chamber 7 is arranged outside the liquid outlet 6, the sealing plug 8 is installed at the upper right corner of the cooling chamber 7, the screw 9 is installed at the left end of the connecting rod 3, the servo motor 10 is connected with the left end of the screw 9, the slide block 11 is installed at the upper side and the lower side of the servo motor 10, the protection box 12 is arranged outside the servo motor 10, the upper and lower both sides inner wall of guard box 12 has all seted up spout 13, and the left end of guard box 12 installs baffle 14, and the inside of baffle 14 is seted up has gas pocket 16, and the internal surface of baffle 14 is fixed with fan 15.

The utility model discloses in, locating lever 4 runs through in spring 5's inside, and locating lever 4 passes through spring 5 and valve body 1 between constitute elastic construction, sets up case 2 and can utilize the elastic action between locating lever 4 and the spring 5 to pull self to in assist its resilience to reset, be favorable to reducing drive arrangement's power consumption.

The structure of cooling chamber 7 is hollow structure, and forms seal structure between cooling chamber 7 and sealing plug 8, sets up cooling chamber 7 and hugs closely valve body 1 to in time carry out cooling treatment to valve body 1, be favorable to avoiding 1 inside high temperature state of valve body to damage the device, be favorable to prolonging the life of each device.

For rotating between screw rod 9 and the connecting rod 3 and being connected for threaded connection between screw rod 9 and the valve body 1, set up that screw rod 9 can screw thread precession or screw-out relatively to valve body 1 to screw rod 9 can rotate round connecting rod 3 to move about driving case 2, realize the switching-over operation.

A rotating structure is formed between the screw rod 9 and the servo motor 10, the servo motor 10 forms a sliding structure through the sliding block 11 and the sliding groove 13, the servo motor 10 is arranged to drive the whole reversing valve to perform reversing operation, and compared with manual type and hydraulic type reversing valves, the reversing precision of the whole reversing valve is higher, the whole structure is not easy to damage, and the use is safer.

The air hole 16 forms a communicating structure between the fan 15 and the protection box 12, the air hole 16 penetrates through the inside of the partition plate 14, and the fan 15 is arranged to accelerate air circulation inside the protection box 12 so as to help the servo motor 10 to dissipate heat timely, and the stability of the working performance of the servo motor 10 is guaranteed.

The utility model discloses a theory of operation is: when the device is used, firstly, the sealing plug 8 is opened, then sufficient cooling water is poured into the cooling chamber 7, so that the cooling chamber 7 can be filled with the cooling water, then the sealing plug 8 is closed, then the servo motor 10 is started, the servo motor 10 drives the screw rod 9 to rotate clockwise, a thread effect is generated between the screw rod 9 and the valve body 1, meanwhile, the screw rod 9 rotates relative to the connecting rod 3, then the screw rod 9 is screwed out towards the left side relative to the valve body 1, the screw rod 9 drives the servo motor 10 to move leftwards, the servo motor 10 drives the sliding block 11 to slide leftwards along the sliding groove 13, meanwhile, the screw rod 9 drives the valve core 2 to move leftwards through the connecting rod 3, at the moment, the valve core 2 drives the positioning rod 4 seat, simultaneously, the blocking state of the liquid outlet 6 is changed, the reversing operation is realized, at the moment, the cooling chamber 7 cools the whole valve body 1, then, and the fan 15 in the protection box 12 is started, the fan 15 works to stir the air flow inside and outside the partition 14, so that the air flow is rapidly circulated among the air holes 16, and the servo motor 10 is assisted to rapidly dissipate heat.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A reversing valve for a breaking hammer is characterized by comprising a valve body (1), a valve core (2), a connecting rod (3), a positioning rod (4), a spring (5), a liquid outlet (6), a cooling chamber (7), a sealing plug (8), a screw (9), a servo motor (10), a sliding block (11), a protection box (12), a sliding groove (13), a partition plate (14), a fan (15) and an air hole (16), wherein the valve core (2) is installed inside the valve body (1), the connecting rod (3) is connected to the left end of the valve core (2), the positioning rod (4) is installed at the right end of the valve core (2), the spring (5) is arranged outside the positioning rod (4), the liquid outlet (6) is respectively arranged at the upper side and the lower side of the valve core (2), the cooling chamber (7) is arranged outside the liquid outlet (6), the sealing plug (8) is installed at the upper right corner of the cooling chamber (7), screw rod (9) are installed to the left end of connecting rod (3), and the left end of screw rod (9) is connected with servo motor (10), slider (11) are all installed to the upper and lower both sides of servo motor (10), and the outside of servo motor (10) is provided with guard box (12), spout (13) have all been seted up to the upper and lower both sides inner wall of guard box (12), and the left end of guard box (12) installs baffle (14), gas pocket (16) have been seted up to the inside of baffle (14), and the internal surface fixed of baffle (14) has fan (15).

2. The reversing valve for a demolition hammer as claimed in claim 1, wherein: the positioning rod (4) penetrates through the spring (5), and the positioning rod (4) and the valve body (1) form an elastic structure through the spring (5).

3. The reversing valve for a demolition hammer as claimed in claim 1, wherein: the structure of the cooling chamber (7) is a hollow structure, and a sealing structure is formed between the cooling chamber (7) and the sealing plug (8).

4. The reversing valve for a demolition hammer as claimed in claim 1, wherein: the screw rod (9) is rotationally connected with the connecting rod (3), and the screw rod (9) is in threaded connection with the valve body (1).

5. The reversing valve for a demolition hammer as claimed in claim 1, wherein: a rotating structure is formed between the screw rod (9) and the servo motor (10), and the servo motor (10) forms a sliding structure with the sliding groove (13) through the sliding block (11).

6. The reversing valve for a demolition hammer as claimed in claim 1, wherein: the air hole (16) is communicated with the protection box (12) through the fan (15), and the air hole (16) penetrates through the partition plate (14).