Digital valve control hydraulic motor for mining chain tightening

Abstract

The utility model discloses a mining digital valve control hydraulic motor for chain tightening, which comprises a motor body, an integrated valve block and a rotating speed sensor are arranged on the motor body, a pressure sensor I and a pressure sensor II are respectively arranged on the integrated valve block, and a brake is further connected onto the motor body. According to the utility model, the hydraulic motor and the control valve group are integrated, so that the installation area is reduced, and meanwhile, the monitoring on the chain tightening parameters can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine chain tightening equipment and relates to a digital valve-controlled hydraulic motor for mine chain tightening. Background Art

[0002] At present, there are two chain tightening methods for underground coal mine transfer machines and scraper conveyors, namely, disc chain tightening and hydraulic chain tightening. The hydraulic chain tightening device is mainly composed of a gear box, a hydraulic motor, a control valve, etc., while the existing hydraulic chain tightening device installs the hydraulic motor and the control valve separately; the problems are that the degree of integration is not high and the floor space is large; and the existing chain tightening device cannot monitor the relevant parameters during the chain tightening process. Utility Model Content

[0003] The utility model aims to provide a digital valve-controlled hydraulic motor for mine chain tightening, which integrates the hydraulic motor and the control valve group, reduces the installation area, and can realize the monitoring of chain tightening parameters.

[0004] The technical solution adopted by the utility model is a digital valve-controlled hydraulic motor for mining chain tightening, comprising a motor body, an integrated valve block and a speed sensor are arranged on the motor body, a pressure sensor I and a pressure sensor II are arranged on the integrated valve block, and a brake is also connected to the motor body.

[0005] The utility model is also characterized in that:

[0006] The integrated valve block is respectively integrated with a balancing valve I, a hydraulic reversing valve, a balancing valve II and a shuttle valve.

[0007] The outer ring of the motor body is processed with a circle of grooves, and the speed sensor is located on the side wall of the groove.

[0008] The counterbalance valve II and the shuttle valve are located on the same side of the integrated valve block.

[0009] The balance valve I is communicated with the motor body, the pressure sensor and the shuttle valve respectively.

[0010] The balancing valve I and the balancing valve II are respectively located on the opposite sides of the integrated valve block.

[0011] The shuttle valve is connected with the hydraulic reversing valve, the brake and the motor body in sequence, and the motor body is also connected with the rotation speed sensor.

[0012] The motor body is also connected to the pressure sensor II and the balance valve II respectively.

[0013] The pressure sensor I and the pressure sensor II are respectively located on two opposite sides of the motor body, and the pressure sensor I and the pressure sensor II are just embedded in the groove.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. Integrate the hydraulic motor and control valve group to reduce the installation space;

[0016] 2. The utility model is equipped with two pressure sensors and one speed sensor, which can monitor various parameters during the chain tightening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axonometric view of a digital valve-controlled hydraulic motor for a mine chain tightening device of the utility model;

[0018] Figure 2 It is a side view of the digital valve-controlled hydraulic motor for mining chain tightening of the utility model;

[0019] Figure 3 This is the front view of the utility model digital valve-controlled hydraulic motor for mining chain tightening;

[0020] Figure 4 The utility model is a working principle diagram of a digital valve-controlled hydraulic motor for mine chain tightening.

[0021] In the figure, 1. integrated valve block, 2. balancing valve I, 3. brake, 4. pressure sensor I, 5. speed sensor, 6. motor body, 7. hydraulic reversing valve, 8. pressure sensor II, 9. balancing valve II, 10. shuttle valve, 11. groove. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0023] The utility model is a digital valve-controlled hydraulic motor for tightening chains in mining. Figure 1 As shown, it includes a motor body 6 , which is internally connected to the brake 3 using a spline, and an integrated valve block 1 and a rotation speed sensor 5 are provided on the motor body 6 .

[0024] like Figure 2 As shown, the integrated valve block 1 is respectively provided with a balancing valve I2, a pressure sensor I4, a hydraulic reversing valve 7, a pressure sensor II8, a balancing valve II9 and a shuttle valve 10.

[0025] The balancing valve II9 and the shuttle valve 10 are located on the same side of the integrated valve block 1 , and the balancing valve I2 is located on the other side of the integrated valve block 1 , that is, the balancing valve II9 and the balancing valve I2 are located on opposite sides of the integrated valve block 1 , respectively.

[0026] The hydraulic reversing valve 7 is located on the other side of the integrated valve block 1 , and the hydraulic reversing valve 7 and the balancing valve II9 and the balancing valve I2 are all located on different sides of the integrated valve block 1 .

[0027] In order to save space, a groove 11 is formed on the outer wall of the motor body 6, and the speed sensor 5 is installed on the side wall of the groove 11. Figure 3 As shown, the pressure sensor I4 and the pressure sensor II8 are respectively located on opposite sides of the motor body 6, and the pressure sensor I4 and the pressure sensor II8 are just embedded in the above-mentioned groove 11. The integrated valve block 1 is located above the motor body 6 and is arranged close to the brake 3.

[0028] The integrated valve block 1 is provided with an L port and an R port respectively; two channels are provided inside the integrated valve block 1, one channel is connected to the balancing valve I2, and the other channel is connected to the balancing valve II9.

[0029] The balancing valve I2 is connected to the L port. After the working medium enters the balancing valve I2 from the L port, the balancing valve I2 is divided into three channels, namely channel 1, channel 2, and channel 3. The details are as follows:

[0030] Channel one is connected to the motor body 6, and the working medium entering the channel one drives the motor body 6 to work; channel two is connected to the pressure sensor I4; channel three is connected to the shuttle valve 10, and the three-connected shuttle valve 10 is connected to the hydraulically controlled reversing valve 7, so that the working medium entering the shuttle valve 10 will flow to the hydraulically controlled reversing valve 7, and the hydraulically controlled reversing valve 7 is connected to the brake 3. The working medium passing through the hydraulically controlled reversing valve 7 will flow to the brake 3, thereby controlling the brake 3 to open. After the brake 3 is opened, the motor body 6 will be controlled to work (the connection between the brake 3 and the motor body 6 is a conventional setting). When the motor body 6 is working, the speed sensor 5 is used to record the current working speed of the motor body 6.

[0031] In addition, the motor body 6 is also connected to the pressure sensor II8, so that the current medium pressure after the hydraulic motor 6 completes the rotation work can be recorded through the pressure sensor II8. At the same time, after the rotation is completed, in addition to entering the pressure sensor II8, a part of the working medium will enter the balance valve II9; the balance valve II9 is ​​connected to the R port and is discharged from the integrated valve block 1 through the R port.

[0032] like Figure 4 As shown, the working principle of the digital valve-controlled hydraulic motor for mine chain tightening of the utility model is:

[0033] When the motor body 6 is not in motion, the brake 3 will hold the rotating shaft of the motor body 6 tightly, so that the entire digital valve-controlled hydraulic motor cannot rotate.

[0034] When the digital valve-controlled hydraulic motor needs to work (assuming that the hydraulic motor rotates clockwise instantaneously during operation), the high-pressure (20MPa) working medium will enter the integrated valve block 1 from the L port (clockwise working port), and then be divided into two parts:

[0035] One part enters the control port of the balancing valve II9, which controls the balancing valve II9 to open, so that the working medium can reverse the flow; the other part directly passes through the balancing valve I2.

[0036] The working medium through the balancing valve I2 is divided into three parts:

[0037] The first part enters the motor body 6, causing the motor body 6 to rotate clockwise;

[0038] The second part enters the pressure sensor I4 to record the current working pressure;

[0039] The third part passes through the shuttle valve 10 and enters the hydraulic reversing valve 7. The hydraulic reversing valve 7 changes direction and allows the medium to pass through, and then enters the brake 3 from the K port (brake port of the integrated valve block 1) and the K1 port (brake port of the brake 3) in turn, so that the brake 3 opens. At this time, the motor body 6 starts to rotate clockwise, and a part of the working medium will be discharged from the O port (the leakage liquid discharge port of the motor body 6) due to leakage inside the motor body 6, and the speed sensor 5 will record the current speed of the motor body 6.

[0040] The working medium that completes the rotation work is divided into two parts:

[0041] A part of it will enter the pressure sensor II8 to record the current medium pressure;

[0042] The other part will be discharged from the integrated valve block 1 through the R port (the counterclockwise rotating working port of the hydraulic motor) after passing through the balance valve II9.

[0043] When the motor body 6 needs to stop rotating, no more liquid enters the L port, and the working medium inside the brake 3 will be discharged from the X port (drain port) after passing through the hydraulic reversing valve 7. The brake 3 will re-lock the motor body 6 to complete the braking of the motor body 6 and prevent the motor body 6 from rotating.

[0044] Example 1

[0045] The digital valve-controlled hydraulic motor for mining chain tightening comprises a motor body 6, on which an integrated valve block 1 and a speed sensor 5 are arranged, on which the integrated valve block 1 is respectively provided with a pressure sensor I4 and a pressure sensor II8, and the motor body 6 is also connected with a brake 3.

[0046] Example 2

[0047] The digital valve-controlled hydraulic motor for mine chain tightening includes a motor body 6, on which an integrated valve block 1 and a speed sensor 5 are provided, on which a pressure sensor I4 and a pressure sensor II8 are provided, respectively, and the motor body 6 is also connected with a brake 3. The integrated valve block 1 is respectively integrated with a balancing valve I2, a speed sensor 5, a hydraulic reversing valve 7, a balancing valve II9 and a shuttle valve 10.

[0048] Example 3

[0049] The digital valve-controlled hydraulic motor for mine chain tightening includes a motor body 6, on which an integrated valve block 1 and a speed sensor 5 are provided, on which a pressure sensor I4 and a pressure sensor II8 are provided, respectively, and the motor body 6 is also connected with a brake 3. The integrated valve block 1 is respectively integrated with a balance valve I2, a speed sensor 5, a hydraulic reversing valve 7, a balance valve II9 and a shuttle valve 10. The outer ring of the motor body 6 is processed with a circle of grooves 11, and the speed sensor 5 is located on the side wall of the groove 11.

[0050] Example 4

[0051] The digital valve-controlled hydraulic motor for mine chain tightening includes a motor body 6, on which an integrated valve block 1 and a speed sensor 5 are provided, on which a pressure sensor I4 and a pressure sensor II8 are provided, respectively, and the motor body 6 is also connected with a brake 3. The integrated valve block 1 is respectively integrated with a balance valve I2, a speed sensor 5, a hydraulic reversing valve 7, a balance valve II9 and a shuttle valve 10. The outer ring of the motor body 6 is processed with a circle of grooves 11, and the speed sensor 5 is located on the side wall of the groove 11. The outer ring of the motor body 6 is processed with a circle of grooves 11, and the speed sensor 5 is located on the side wall of the groove 11.

[0052] The utility model discloses a digital valve-controlled hydraulic motor for mining chain tightening, which integrates an integrated valve block 1 on a motor body 6, thereby solving the problem of a large occupied area in the existing chain tightening hydraulic motor and its control valve being installed separately. In addition, since a pressure sensor I4 and a pressure sensor II8 are respectively provided on the integrated valve block 1 of the utility model, the pressure of the working medium can be monitored. At the same time, the utility model also monitors the rotation speed of the motor body 6 by providing a rotation speed sensor 5 on the motor body 6, thereby solving the problem that the existing chain tightening device cannot monitor the chain tightening data.

Claims

1. Digital valve-controlled hydraulic motor for mine chain tightening, characterized by: The motor body (6) comprises an integrated valve block (1) and a rotation speed sensor (5) which are arranged on the motor body (6); a pressure sensor I (4) and a pressure sensor II (8) are respectively arranged on the integrated valve block (1); and a brake (3) is also connected to the motor body (6).

2. The digital valve-controlled hydraulic motor for mine chain tightening according to claim 1 is characterized in that: The integrated valve block (1) is respectively integrated with a balancing valve I (2), a hydraulic reversing valve (7), a balancing valve II (9) and a shuttle valve (10).

3. The digital valve-controlled hydraulic motor for mine chain tightening according to claim 2 is characterized in that: The outer ring of the motor body (6) is processed with a circle of grooves (11), and the rotation speed sensor (5) is located on the side wall of the groove (11).

4. The digital valve-controlled hydraulic motor for mine chain tightening according to claim 3 is characterized in that: The balancing valve II (9) and the shuttle valve (10) are located on the same side of the integrated valve block (1).

5. The digital valve-controlled hydraulic motor for mining chain tightening according to claim 4 is characterized in that: The balancing valve I (2) is respectively connected to the motor body (6), the pressure sensor I (4) and the shuttle valve (10).

6. The digital valve-controlled hydraulic motor for mine chain tightening according to claim 4 is characterized in that: The balancing valve I (2) and the balancing valve II (9) are respectively located on two opposite sides of the integrated valve block (1).

7. The digital valve-controlled hydraulic motor for mine chain tightening according to claim 6 is characterized in that: The shuttle valve (10) is connected in sequence to the hydraulic reversing valve (7), the brake (3) and the motor body (6), and the motor body (6) is also connected to the rotation speed sensor (5).

8. The digital valve-controlled hydraulic motor for mining chain tightening according to claim 7 is characterized in that: The motor body (6) is also connected to a pressure sensor II (8) and a balance valve II (9) respectively.

9. The digital valve-controlled hydraulic motor for mining chain tightening according to claim 7 is characterized in that: The pressure sensor I (4) and the pressure sensor II (8) are respectively located on opposite sides of the motor body (6), and the pressure sensor I (4) and the pressure sensor II (8) are just embedded in the groove (11).

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