CN216714852U

CN216714852U - Three-position four-way grinding machine valve group

Info

Publication number: CN216714852U
Application number: CN202121919031.9U
Authority: CN
Inventors: 陈海楼; 成才飞
Original assignee: Nanjing Blessed Hydraulic Machinery Co ltd
Current assignee: Nanjing Blessed Hydraulic Machinery Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-06-10
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a three-position four-way grinding machine valve group, which comprises a grinding machine valve and a valve plate connected with the grinding machine valve, wherein the grinding machine valve comprises a valve body, a pilot valve arranged at the top of the valve body and end covers arranged at two sides of the valve body, a P oil port and T oil ports positioned at two sides of the P oil port are respectively arranged at the bottom end of the valve body, an A oil port and a B oil port connected with a grinding machine execution element are respectively arranged at the side surface of the valve body, and channels communicated with the P oil port and the T oil ports at two sides are respectively arranged on the valve block. The three-position four-way grinding machine valve group realizes plate-type connection with a grinding machine valve and a grinding machine execution element by arranging the valve plate, replaces the existing pipe-type connection, improves the working efficiency and realizes convenient and fast industrial operation.

Description

Three-position four-way grinding machine valve group

Technical Field

The utility model belongs to the field of hydraulic valves, and particularly relates to a three-position four-way grinding machine valve bank.

Background

The hydraulic station is a hydraulic source device including a hydraulic pump, a driving motor, a tank, a directional valve, a throttle valve, a relief valve, and the like, or a hydraulic device including a control valve. The oil supply is carried out according to the flow direction, pressure and flow quantity required by the driving device, the hydraulic system is suitable for various machines with the driving device separated from a hydraulic station, and the hydraulic station is connected with the driving device (an oil cylinder or a motor) through an oil pipe, so that various specified actions can be realized by the hydraulic system.

When the existing grinding machine valve is connected with a grinding machine execution element, a connecting pipeline is arranged at an oil port, and then the existing grinding machine valve and the grinding machine execution element are connected. And in actual work, because the long-term use of grinding machine valve leads to wearing and tearing, need regularly change the grinding machine valve, so adopt the grinding machine valve of current tubular connection will lead to its change troublesome, consuming time and wasting force. Therefore, a grinding machine valve set which is convenient to replace is needed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a three-position four-way grinding machine valve group which adopts plate type connection to replace the existing pipe type connection so as to be convenient for replacing a grinding machine valve.

The technical scheme is as follows: the three-position four-way grinding machine valve group comprises a grinding machine valve and a valve plate connected with the grinding machine valve, wherein the grinding machine valve comprises a valve body, a pilot valve arranged at the top of the valve body and end covers arranged at two sides of the valve body, a P oil port and T oil ports positioned at two sides of the P oil port are respectively arranged at the bottom end of the valve body, an A oil port and a B oil port connected with an execution element of a grinding machine are respectively arranged on the side surface of the valve body, and channels communicated with the P oil port and the T oil ports at two sides are respectively arranged on the valve plate.

Furthermore, a grinding valve of the grinding valve group is connected with a valve plate through bolts, and sealing rings are arranged at the connecting ends of the channel, the P oil port and the T oil ports on the two sides.

Furthermore, a main valve core is arranged at the center of a valve body of the grinding machine valve group, a communicating oil port is arranged on the main valve core, and the tops of the P oil port and the T oil port are communicated with the communicating oil port.

Furthermore, liquid storage bins are arranged on the outer sides of two ends of a main valve core of the grinding machine valve bank, a communicating pipe is arranged at the top of each liquid storage bin, a liquid outlet is arranged at the top of each communicating pipe, a liquid conveying pipe is arranged on one side of each communicating pipe, and the other end of each liquid conveying pipe is communicated with the pilot valve.

Furthermore, a one-way valve is arranged at the joint of the infusion tube and the communicating tube of the grinding machine valve group, and the one-way conduction of the infusion tube to the communicating tube is realized through the one-way valve.

Furthermore, the surfaces of two sides of the end cover of the grinding machine valve group are provided with limit screws, the upper ends of the limit screws are provided with damping adjusting screws, and the damping adjusting screws are clamped with one side of the communicating pipe.

Furthermore, both ends of a main valve core of the grinding machine valve bank are provided with a return spring, one end of the return spring is fixedly connected with the main valve core, and the other end of the return spring is fixedly connected with a limiting screw.

Furthermore, a buffer screw is arranged on the rear side face of the valve body of the grinding machine valve group and is clamped with the T oil port.

Furthermore, the corners of the surfaces of the two sides of the end cover of the grinding machine valve set are respectively provided with a fastening screw, and the valve body is fixedly connected with the end cover through the fastening screws.

Has the advantages that: compared with the prior art, the utility model has the advantages that: this tribit four-way grinding machine valves realizes being connected with grinding machine valve and grinding machine executive component's board-like through setting up the valve plate, replaces current tubular connection, has improved work efficiency, has realized convenient industrial operation.

Drawings

FIG. 1 is a front view of a grinder valve block of the present invention;

FIG. 2 is a side view of a grinder valve block of the present invention;

FIG. 3 is a top view of the grinder valve block of the present invention;

FIG. 4 is a side view of a grinder valve according to the present invention;

fig. 5 is a front cross-sectional view of the grinder valve of the present invention.

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 3, the three-position four-way grinding machine valve group of the present invention includes a grinding machine valve 1 and a valve plate 2 connected thereto in a plate manner, and the valve plate 2 is used for connecting with an actuating element of the grinding machine.

The grinding machine valve 1 includes a valve body 3 with a main valve element 10 at the center, end caps 5 disposed at both sides of the valve body 3, and a pilot valve 4 disposed at the upper end of the valve body 3, wherein the valve body 3 and the end caps 5 are fixedly connected by fastening screws 21 disposed at corners of both sides of the end caps 5, as shown in fig. 4. The two side surfaces of the end cover 5 are provided with limit screws 17, and the top of the limit screws 17 is provided with damping adjusting screws 18. As shown in fig. 5, a communication oil port 11 of an inclined structure is arranged on the main valve element 10, a P oil port 6 is arranged at the lower end of the valve body 3, T oil ports 7 are arranged on both sides of the P oil port 6, an a oil port 8 and a B oil port 9 connected with a grinding machine actuator are respectively arranged on the side surface of the valve body 3, and the a oil port 8 and the B oil port 9 are connected with the grinding machine actuator through the communication relationship among the P oil port 6, the T oil port 7 and the communication oil port 11. Both ends of main valve element 10 are equipped with liquid storage tank 12, and both ends of main valve element 10 are also equipped with reset spring 19, and the other end of this reset spring 19 is connected with limit screw 17 on end cover 5 and is fixed. A communicating pipe 13 is arranged on the liquid storage bin 12, a liquid outlet 14 is arranged at the top end of the communicating pipe 13, one side of the communicating pipe 13 is communicated with an infusion pipe 15, and a one-way valve 16 is arranged at the connection part of the communicating pipe 13 and the infusion pipe 15, so that the one-way conduction of the infusion pipe 15 to the communicating pipe 13 is realized. The other end of the infusion tube 15 is connected with the pilot valve 4. The damping adjusting screw 18 arranged on the end cover 5 is clamped with the communicating pipe 13. The rear side surface of the valve body 3 is provided with a buffer screw 20, and the buffer screw 20 is clamped with the T oil port 7. The buffer screw 20 is unscrewed, so that the flowing speed of oil in the T oil port 7 is adjusted, the reversing time of the main valve element 10 in the valve body 3 is changed by changing the flowing speed of the oil, and the impact force of the main valve element 10 in the reversing process is further eliminated.

The grinding machine valve 1 and the valve plate 2 can be directly connected through bolts, four sides of the grinding machine valve are fixedly connected, and the grinding machine valve can be conveniently detached. The valve plate 2 is provided with passages corresponding to the P oil port 6 of the valve body 3 and the T oil ports 7 on two sides, and the passages are located at the bottom end of the valve plate 2, so that oil liquid flows between the grinding machine valve and the grinding machine executing element.

The working principle is as follows: referring to fig. 1 and 2, when the main valve element is located at the center of the valve body 3, due to the inclined structure of the communication oil ports 11, all the oil ports inside the main valve element 3 of the grinding machine are in a half-open state, when the main valve element 10 is reversed, the pilot valve 4 passes through the infusion tube 15 and the check valve 16 to introduce the pushing liquid into the communicating tube 13, the pushing liquid enters the liquid storage bin 12 through the communicating tube 13, and at this time, the pushing liquid is accumulated inside the liquid storage bin 12, so that the main valve element 10 is pushed to move transversely inside the valve body 3.

When the main valve core 10 moves leftwards in the valve body 3, the oil port P6 is communicated with the oil port B through the communicating oil port 11, the oil port T7 is communicated with the oil port A8, and the oil port A8 is connected with the oil port B9 and an executing element of a grinding machine, so that the extension/contraction movement is realized; when the main valve core 10 moves to the right inside the valve body 3, the oil port P6 is communicated with the oil port a 8 through the communicating oil port 11, the oil port T7 is communicated with the oil port B9, and the extending/contracting movement is realized through the connection of the oil port a 8 and the oil port B9 with the grinding machine executing element.

When the pushing liquid pushes the main valve element 10 to move left in the valve body 3, the main valve element 10 pressurizes the return spring 19 on the left side, the main valve element 10 pushes the pushing liquid in the left liquid storage bin 12 to flow back to the communicating pipe 13 on the left side, and the damping adjusting screw 18 on the left side is unscrewed, so that the pushing liquid flows out through the top of the liquid outlet 14; similarly, when the pushing fluid pushes the main valve element 10 to move right inside the grinder valve body 3, the main valve element 10 pressurizes the return spring 19 on the right side, and the main valve element 10 pushes the pushing fluid inside the right-side fluid storage tank 12 to flow back into the communicating pipe 13 on the right side, and the damping adjusting screw 18 on the right side is unscrewed, so that the pushing fluid flows out through the top of the fluid outlet 14. The flow speed of the pushing liquid in the communicating pipe 13 is controlled by the damping adjusting screw 18, so that the moving speed of the main valve element 10 in the valve body 3 is controlled, the reversing time of the main valve element 10 in the valve body 3 is prolonged, and the reversing impact of the valve body 3 is eliminated.

In the reversing process of the valve body 3, the buffer screw 20 is unscrewed, so that the flowing speed of oil in the T oil port 7 is adjusted, the reversing time of the main valve element 10 in the valve body 3 is changed by changing the flowing speed of the oil, and the impact force of the main valve element 10 in the reversing process is further eliminated.

Except the above, when long-term use leads to the grinding machine valve wearing and tearing, only need demolish the bolted connection between grinding machine valve 1 and valve plate 2, can realize having improved work efficiency to the convenient change of grinding machine valve 1, reduced the cost of labor.

Claims

1. A three-position four-way grinding machine valve group is characterized in that: this grinding machine valves includes grinding machine valve (1) and valve plate (2) rather than being connected, grinding machine valve (1) includes valve body (3), locates pilot valve (4) at valve body (3) top and locates end cover (5) of valve body (3) both sides, the bottom of valve body (3) is equipped with P hydraulic fluid port (6) respectively and is located T hydraulic fluid port (7) of this P hydraulic fluid port (6) both sides, and the side of valve body (3) is equipped with A hydraulic fluid port (8) and B hydraulic fluid port (9) that are connected with grinding machine executive component respectively, be equipped with the passageway that is linked together with P hydraulic fluid port (6), T hydraulic fluid port (7) of both sides on valve plate (2) respectively.

2. The valve bank of the three-position four-way grinding machine according to claim 1, wherein: the grinding machine valve (1) is connected with the valve plate (2) through bolts, and sealing rings are arranged at the connecting ends of the channel, the P oil port (6) and the T oil ports (7) on the two sides.

3. The valve bank of the three-position four-way grinding machine according to claim 1, wherein: the valve is characterized in that a main valve core (10) is arranged at the center of the valve body (3), a communicating oil port (11) is arranged on the main valve core (10), and the tops of the P oil port (6) and the T oil port (7) are communicated with the communicating oil port (11).

4. The valve bank of the three-position four-way grinding machine according to claim 3, wherein: the main valve element is characterized in that liquid storage bins (12) are arranged on the outer sides of two ends of the main valve element (10), a communicating pipe (13) is arranged at the top of each liquid storage bin (12), a liquid outlet (14) is arranged at the top of each communicating pipe (13), a liquid conveying pipe (15) is arranged on one side of each communicating pipe (13), and the other end of each liquid conveying pipe (15) is communicated with the pilot valve (4).

5. The valve bank of the three-position four-way grinding machine according to claim 4, wherein: a one-way valve (16) is arranged at the joint of the infusion tube (15) and the communicating tube (13), and the one-way conduction of the infusion tube (15) to the communicating tube (13) is realized through the one-way valve (16).

6. The valve bank of the three-position four-way grinding machine according to claim 1, wherein: and the surfaces of two sides of the end cover (5) are provided with limit screws (17), the upper ends of the limit screws (17) are provided with damping adjusting screws (18), and the damping adjusting screws (18) are clamped with one side of the communicating pipe (13).

7. The valve bank of the three-position four-way grinding machine according to claim 6, wherein: and two ends of the main valve core (10) are respectively provided with a return spring (19), one end of each return spring (19) is fixedly connected with the main valve core (10), and the other end of each return spring is fixedly connected with the limit screw (17).

8. The valve bank of the three-position four-way grinding machine according to claim 1, wherein: the rear side face of the valve body (3) is provided with a buffer screw (20), and the buffer screw (20) is clamped with the T oil port (7).

9. The valve bank of the three-position four-way grinding machine according to claim 1, wherein: the valve is characterized in that the corners of the surfaces of the two sides of the end cover (5) are respectively provided with a fastening screw (21), and the valve body (3) and the end cover (5) are fixedly connected through the fastening screws (21).