Coal mining machine and tilt angle sensor assembly for coal mining machine

Abstract

The utility model discloses a tilt angle sensor assembly for a coal mining machine, which is arranged on a pin shaft of a traction shell of the coal mining machine, and comprises a connecting seat, a tilt angle sensor, an angle sensor and an angle sensor, wherein the connecting seat is provided with an embedding part which is sunk in the pin shaft; the fixing seat is arranged in the embedding part of the connecting seat in a sinking manner; the sensor is arranged on the fixed seat; and the gland is used for fixing the sensor on the fixing seat. According to the tilt angle sensor assembly for the coal mining machine, the height protruding out of the shell is small, the probability that the tilt angle sensor assembly collides with large coals is reduced, the impact strength of the tilt angle sensor assembly is improved, the tilt angle sensor assembly is not prone to falling off when collided, a sensor is effectively protected, the authenticity of sensing data of the sensor is ensured, and smooth coal mine production is facilitated. In addition, the utility model further provides the coal mining machine with the tilt angle sensor assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining machines, in particular to a coal mining machine and an inclination sensor component used for the coal mining machine. Background Art

[0002] At present, most of the inclination sensor devices used in domestic coal mining machines are installed on the outer end face of the pin shaft on the traction shell of the coal mining machine. Due to the structural limitations of the sensor, it is usually chosen to install the sensor on a mounting seat, and then fix the mounting seat on a positioning plate. Such installation will make the entire component protrude higher than the outer end face of the pin shaft and the shell, usually higher than 75mm. When the coal mining machine is mining normally, the inclination sensor device is located just above the pin row, and the probability of large pieces of coal appearing above the pin row is high. When the coal mining machine moves to the position of large pieces of coal, the part of the inclination sensor device protruding from the shell will interfere with the large pieces of coal. In addition, the principle of lever action means that the more it protrudes, the easier it is to collide with and be damaged by large pieces of coal. What's more, large pieces of coal may knock off the inclination sensor device, thus affecting the smooth progress of production. Summary of the invention

[0003] The purpose of the utility model is to solve the above-mentioned problems and to provide a coal mining machine and a tilt sensor assembly for the coal mining machine. The tilt sensor assembly protrudes a small height from the traction shell of the coal mining machine, thereby reducing the probability of collision with large pieces of coal, increasing the impact strength of the tilt sensor assembly, and is not easy to fall when encountering a collision. The sensor is effectively protected, the authenticity of the sensor sensing data is ensured, and the smooth progress of coal mine production is facilitated.

[0004] In order to achieve the above-mentioned purpose of the utility model, on the one hand, the utility model provides an inclination sensor assembly for a coal mining machine, which is installed on the pin shaft of the traction shell of the coal mining machine, including: a connecting seat with an embedded part for being sunk in the pin shaft; a fixing seat sunk in the embedded part of the connecting seat; a sensor mounted on the fixing seat; and a pressure cover for fixing the sensor to the fixing seat.

[0005] Preferably, the connecting seat also includes a clamping portion fixedly connected to one side of the embedding portion and used for clamping with a fixed pin shaft on the rocker arm housing of the coal mining machine.

[0006] Preferably, the embedding portion is in a sleeve shape.

[0007] Preferably, the starting end of the clamping portion is seamlessly connected to the upper end surface of the opening side of the sleeve-shaped embedding portion, and extends radially outward relative to the embedding portion along the embedding portion.

[0008] Preferably, a countersunk hole is provided on the end surface of the pin shaft, and the embedded portion of the connecting seat is arranged in the countersunk hole and is clearance-matched therewith.

[0009] Preferably, the fixing seat comprises: a cylindrical body with an arc-shaped notch on one side and a long strip-shaped notch on the other side; a through hole provided in the center of the bottom wall of the cylindrical body; and a plurality of threaded holes evenly distributed on the bottom wall of the cylindrical body.

[0010] Preferably, the sensor is placed in the cylindrical body, and its cable passes through the elongated gap.

[0011] In addition, the utility model also provides a coal mining machine, which includes the inclination sensor assembly as described above.

[0012] Compared with the prior art, the coal mining machine and the inclination sensor assembly for the coal mining machine of the utility model have the following advantages:

[0013] The inclination sensor assembly of the utility model is sunk in the pin shaft of the traction shell, so that the height protruding from the outer end surface of the pin shaft is reduced, the probability of the inclination sensor assembly colliding with large pieces of coal is reduced, the impact strength of the inclination sensor assembly is increased, and the inclination sensor assembly is not easy to fall when hit by a coal block, so the sensor is effectively protected, the maintenance cost is reduced, and the authenticity of the sensor sensing data is ensured, which is conducive to the smooth progress of coal mine production.

[0014] The utility model is described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the utility model tilt sensor assembly installed on a coal mining machine;

[0016] Figure 2 This is a partial cross-sectional view of the utility model inclination sensor assembly installed on a coal mining machine;

[0017] Figure 3 It is a structural schematic diagram of the fixing seat of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the connecting seat of the utility model;

[0019] Figure 5 It is a partial schematic diagram of a pin shaft installed on a traction housing of a coal mining machine according to the utility model. DETAILED DESCRIPTION

[0020] like Figure 1 , Figure 2The figures shown are schematic diagrams of different structures of the inclination sensor assembly of the utility model installed on a coal mining machine. It can be seen from the figures that the inclination sensor assembly of the utility model for a coal mining machine is installed on the pin shaft 18 of the traction shell 17 of the coal mining machine, and includes: a connecting seat 4 having an embedding portion 41 for being sunk in the pin shaft; a fixing seat 5 sunk in the embedding portion of the connecting seat; a sensor 11 mounted on the fixing seat; and a pressure cover 3 for fixing the sensor to the fixing seat.

[0021] Specifically, in order to reduce the height of the inclination sensor assembly protruding from the traction housing of the coal mining machine, the utility model opens a countersink on the outer end surface of the pin shaft installed on the traction housing so that the inclination sensor assembly can be partially sunk in the countersink.

[0022] like Figure 2 , Figure 5 As shown, the countersunk holes on the pin shaft include a first countersunk hole 182, a second countersunk hole 181, and a third countersunk hole 183 which are sequentially arranged from the outer end surface of the pin shaft toward the inside. The three countersunk holes are arranged in a stepped shape and their diameters decrease sequentially from the outer end surface of the pin shaft to the inside.

[0023] The connecting seat of the inclination sensor assembly is sunk into the first sunk hole of the pin shaft. Figure 4 As shown, the connection seat has an embedding portion and a clamping portion 42 fixedly connected to one side of the embedding portion. The embedding portion is sleeve-shaped, placed in the first countersunk hole of the pin shaft and matched with it in a clearance, and a through hole 43 is provided in the center of the bottom wall of the embedding portion. The starting end of the clamping portion is seamlessly connected to the upper end surface of the opening side of the sleeve-shaped embedding portion, and extends radially relative to the embedding portion toward the outside, and a U-shaped notch 44 is provided at the end of the clamping portion. After assembly, the fixed pin shaft 2 on the rocker arm housing 16 of the coal mining machine is just located in the U-shaped notch, so that when the rocker arm housing swings, the connection seat can be driven to swing relative to the traction housing through the fixed pin shaft. When designing, the height of the embedding portion is roughly equal to the depth of the first countersunk hole.

[0024] A fixing seat is arranged in the embedded part of the connecting seat, such as Figure 3 As shown, the fixing seat of the utility model includes: a cylindrical body 51 with an arc-shaped notch 55 on one side and a long strip notch 52 on the other side, and the sensor is placed in the groove of the cylindrical body; a through hole 53 opened in the center of the bottom wall of the cylindrical body; and a plurality of threaded holes 54 evenly distributed on the bottom wall of the cylindrical body. During assembly, the clamping portion of the connecting plate corresponds to the arc-shaped notch of the fixing seat, and the cable of the sensor passes through the long strip notch 52. During design, the sum of the height of the groove of the embedding portion of the connecting seat and the height of the clamping portion is equivalent to the height of the fixing seat, and the sensor shaft passes through the through hole 53 of the fixing seat, the through hole 43 of the connecting seat, and the second countersunk hole 181 from the outside to the inside, and extends into the third countersunk hole 183. In order to fix the sensor, the utility model also sets a positioning block 8 on one side of the sensor shaft in the second countersunk hole, and fixes the positioning block to the connecting plate by screws 9 and washers 10.

[0025] The following describes the installation process of the inclination sensor assembly of the utility model on the coal mining machine: fix the fixed pin shaft 1 and the spring washer 2 on the rocker arm housing 16. Fasten the sensor 11 to the fixed seat 5 through the washer 7 and the screw 6, and then install the fixed seat 5 into the connecting seat 4. Fix the positioning block 8 to the connecting seat 4 through the screw 9 and the washer 10, and then install the fixed seat 5 and the connecting seat 4 together into the countersunk hole of the pin shaft, and fasten them with the screw 12 and the washer 13. Pay attention to inserting the fixed pin shaft 1 into the U-shaped groove of the connecting seat 4. Cover the pressure cover 3 and fasten it with the screw 14 and the washer 15. When the rocker arm rotates up and down, it drives the connecting seat to rotate, and the connecting seat drives the shaft in the sensor to rotate, so that the swing angle of the rocker arm can be measured.

[0026] The utility model drills a hole on the outer end face of the pin shaft, sinks the connecting seat into the countersunk hole, and cooperates with the clearance of the countersunk hole. The sensor is installed in the fixing seat, and then installed into the connecting seat together with the fixing seat, and then covered with a pressure cover. The overall height of the inclination sensor assembly of the utility model protrudes from the end face of the coal mining machine traction shell smaller, about 28mm. Compared with the prior art that needs to protrude 75mm from the shell, the probability of collision between the inclination sensor assembly and the coal block is greatly reduced, and the embedded part of the connecting seat is sunk into the countersunk hole of the pin shaft to play the role of a shear pin, so that the whole has a certain anti-shear effect.

[0027] In addition to providing the above-mentioned inclination sensor assembly, the utility model also provides a coal mining machine comprising the above-mentioned inclination sensor assembly.

[0028] Although the utility model is described in detail above, the utility model is not limited thereto, and technicians in this technical field can make modifications based on the principles of the utility model. Therefore, all kinds of modifications made according to the principles of the utility model should be understood to fall within the protection scope of the utility model.

Claims

1. An inclination sensor assembly for a coal mining machine, mounted on a pin of a traction housing of the coal mining machine, characterized in that: include: A connecting seat having an embedding portion for being sunk into the pin shaft; A fixing seat sunk into the embedding portion of the connecting seat; A sensor mounted on a fixed base; A pressure cover is used to fix the sensor on the fixing seat.

2. The inclination sensor assembly according to claim 1, characterized in that: The connecting seat also includes a clamping portion which is fixedly connected to one side of the embedding portion and is used to clamp with a fixed pin shaft on the rocker arm housing of the coal mining machine.

3. The inclination sensor assembly according to claim 2, characterized in that: The embedding portion is in a sleeve shape.

4. The inclination sensor assembly according to claim 3, characterized in that: The starting end of the clamping portion is seamlessly connected to the upper end surface of the opening side of the sleeve-shaped embedding portion, and extends radially along the embedding portion toward the outside relative to the embedding portion.

5. The inclination sensor assembly according to claim 4, characterized in that: A countersunk hole is provided on the end surface of the pin shaft, and the embedded portion of the connecting seat is arranged in the countersunk hole and is clearance-matched with the countersunk hole.

6. The inclination sensor assembly according to any one of claims 1 to 5, characterized in that: The fixing seat comprises: A cylindrical body with an arc-shaped notch on one side and a long strip-shaped notch on the other side; A through hole is provided at the center of the bottom wall of the cylindrical body; A plurality of threaded holes are evenly distributed on the bottom wall of the cylindrical body.

7. The inclination sensor assembly according to claim 6, characterized in that: The sensor is placed in the cylindrical body, and its cable passes through the long strip-shaped gap.

8. A coal mining machine, characterized in that: The invention comprises a tilt sensor assembly as described in any one of claims 1 to 7.

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