Mining roof separation monitoring device

Abstract

The utility model belongs to the technical field of mining roof separation instruments, and particularly relates to a mining roof separation monitoring device which comprises an anchor rod, a measuring steel wire rope penetrates through the anchor rod, the measuring steel wire rope slides relative to the anchor rod, the bottom of the anchor rod is fixedly connected with a lantern ring, a displacement sensor is fixedly installed on the side wall of the lantern ring, and the displacement sensor is connected with the anchor rod. A measuring cylinder is sleeved with the lantern ring, a fixing ring is fixedly connected to the inner wall of the measuring cylinder, and a detection assembly is arranged in the measuring cylinder. According to the mining roof separation monitoring device, two groups of sliding rings with different heights and rotating rings are arranged, and the measuring steel wire rope is connected with the rotating rings, so that the measuring steel wire rope can flexibly steer through the rotating rings, distortion generated when the measuring steel wire rope is converted to multiple horizontal directions is avoided, and the problem of interference of multi-point measuring steel wire ropes is effectively solved; accuracy of measured data is guaranteed, and reliable basis is provided for coal mine underground roadway roof monitoring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine roof separation layer appearance, concretely to a mine roof separation layer monitoring device. BACKGROUND

[0002] The roof separation layer appearance is a kind of monitoring device for monitoring the variation trend of separation layer value in the anchoring range of roof and outside the anchoring range, is the special monitoring instrument for monitoring the movement of roof stratum, and is the most basic and most widely used roof monitoring instrument in the current coal mine underground roadway.

[0003] At present, in the prior art, for example, the Chinese patent with the announcement number CN217637091U discloses a kind of new mine roof separation layer appearance, the device can avoid the direct contact of roof and inner measuring cylinder and outer measuring cylinder when actually using, ensure that the reading of separation layer appearance is accurate when roof subsides, to record the whole process of roof subsidence.

[0004] However, when the roof subsides, the measuring steel wire rope can pull the measuring ring to move, but the measuring steel wire rope cannot be converted to multiple directions horizontally, otherwise the measuring steel wire rope will be twisted, causing the problem of multi-point measuring steel wire rope interference, in view of this, a kind of mine roof separation layer monitoring device is provided. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a kind of mine roof separation layer monitoring device, can solve the problem proposed in the above background art.

[0006] To achieve the above object, the mine roof separation layer monitoring device provided by the utility model, including anchor rod, the anchor rod is penetrated by measuring steel wire rope, and the measuring steel wire rope is slid with anchor rod, the bottom of anchor rod is fixedly connected with eye ring, the sidewall of eye ring is fixedly installed with displacement sensor, the eye ring is sleeved with measuring cylinder, the inner wall of measuring cylinder is fixedly connected with fixed ring, the measuring cylinder is provided with detection assembly, the detection assembly includes:

[0007] Sliding ring, the sliding ring is slidably connected in the inner wall of anchor rod;

[0008] Steel rope, one end of the steel rope is fixedly connected to the lower side of sliding ring, and the other end of the steel rope away from sliding ring is fixedly connected to measuring ring;

[0009] Reset spring, the two ends of reset spring are fixed on fixed ring and measuring ring respectively.

[0010] Preferably, the middle part of the fixed ring is provided with a through hole, and the through hole is matched with the measuring steel wire rope.

[0011] Preferably, the displacement sensor, the sliding ring, the steel wire, the reset spring and the measuring ring are provided with two groups, and the two groups of displacement sensors, steel wires, reset springs and measuring rings are symmetrically arranged with the center line of the measuring cylinder as the symmetric axis.

[0012] Preferably, the two groups of sliding rings are arranged in the anchor rod, and the positions of the two groups of sliding rings are high and low.

[0013] Preferably, the upper side of the sliding ring is rotationally connected with a rotating ring, the rotating ring is connected with a measuring steel wire rope, the sliding ring with a lower height is penetrated by the steel wire, and the sliding ring with a higher height is penetrated by the measuring steel wire rope.

[0014] Preferably, a guide column is fixedly connected to the inner wall of the measuring cylinder, a guide groove is formed in the outer wall of the measuring cylinder, and a through hole matched with the steel wire is formed in the outer wall of the measuring cylinder.

[0015] Preferably, a reinforcing assembly is arranged on the anchor rod, the reinforcing assembly comprises a positioning ring, the positioning ring is fixed on the anchor rod, a mounting disc is rotationally connected to the side of the positioning ring close to the sleeve ring, and the mounting disc is fixedly mounted through bolts.

[0016] The utility model provides a kind of mine roof separation monitoring device. With the following beneficial effects:

[0017] (1), the mine roof separation monitoring device is provided with two groups of sliding rings with rotating ring of different height, the measuring steel wire rope is connected with rotating ring, so that the measuring steel wire rope can be flexibly diverted through rotating ring, avoid producing distortion when converting to horizontal multiple directions, effectively solve the problem of multi-point measuring steel wire rope interference, ensure the accuracy of measurement data, provide reliable basis for coal mine underground roadway roof monitoring.

[0018] (2), the mine roof separation monitoring device is provided with two groups of symmetrically arranged steel wire, reset spring and measuring ring, can measure the separation of different positions of roof, obtain more comprehensive roof separation data, ensure that the measuring device can continuously and accurately monitor the roof separation value change trend, enhance the practicability and stability of device. ACCURACY

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creating creative labor.

[0020] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model.

[0021] Figure 2 It is the whole section structure schematic view of the utility model;

[0022] Figure 3 It is the whole section structure schematic view of the utility model Figure 2 It is the whole section structure schematic view of the utility model;

[0023] Figure 4 It is the whole section structure schematic view of the utility model;

[0024] Figure 5 It is the whole section structure schematic view of the utility model.

[0025] Explanation of the attached drawing:

[0026] 1, anchor rod;2, measuring steel wire rope;3, thimble;4, displacement sensor;5, measuring cylinder;6, reinforcing assembly;7, detection assembly;51, fixed ring;52, guide column;53, guide groove;54, through hole;61, positioning ring;62, bolt;63, mounting disc;71, sliding ring;72, steel rope;73, measuring ring;74, return spring;711, rotating ring.

[0027] The realization, functional characteristics and advantages of the utility model will be further described with reference to the attached drawings in combination with embodiments. Specific implementation

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the attached drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Please refer to Figures 1-5 The utility model provides a kind of mine roof separation monitoring device, including anchor rod 1, anchor rod 1 is measured steel wire rope 2 through, and measured steel wire rope 2 and anchor rod 1 slide, the bottom of anchor rod 1 is fixedly connected with thimble 3, displacement sensor 4 is fixedly installed on the lateral wall of thimble 3, displacement sensor 4 can be laser ranging sensor or ultrasonic ranging sensor, thimble 3 is sleeved with measuring cylinder 5, fixed ring 51 is fixedly connected on the inner wall of measuring cylinder 5, through hole is set in the middle part of fixed ring 51, and through hole is matched with measuring steel wire rope 2, detection assembly 7 is arranged in measuring cylinder 5.

[0030] In this embodiment of the invention, the detection component 7 includes a sliding ring 71, a steel rope 72, and a return spring 74. The sliding ring 71 is slidably connected to the inner wall of the anchor rod 1. One end of the steel rope 72 is fixedly connected to the lower side of the sliding ring 71, and the other end of the steel rope 72 away from the sliding ring 71 is fixedly connected to the measuring ring 73. The two ends of the return spring 74 are respectively fixed to the fixed ring 51 and the measuring ring 73. A guide post 52 is fixedly connected to the inner wall of the measuring cylinder 5, and a guide groove 53 is provided on the outer wall of the measuring cylinder 5. A through-hole 54 matching the steel rope 72 is provided on the outer wall of the measuring cylinder 5. A rotating ring 711 is rotatably connected to the upper side of the sliding ring 71. The rotating ring 711 is connected to the measuring steel wire rope 2. When the top plate sinks, the anchor rod 1 descends. Since the top of the measuring steel wire rope 2 remains stationary, the measuring steel wire rope 2 pulls the measuring ring 73 to move upward relative to the anchor rod 1 (see reference). Figure 2 This causes the steel rope 72 to move, compressing the return spring 74 and causing the measuring ring 73 to slide on the measuring cylinder 5. The displacement sensor 4 monitors the distance the measuring ring 73 moves. At the same time, the measuring steel wire rope 2 can be flexibly turned by rotating the ring 711, avoiding twisting when turning to multiple horizontal directions. This effectively solves the problem of interference from the multi-point measuring steel wire rope 2, ensuring the accuracy of the measurement data and providing a reliable basis for monitoring the roof of underground roadways in coal mines.

[0031] Furthermore, two sets of displacement sensors 4, sliding rings 71, steel ropes 72, return springs 74, and measuring rings 73 are provided. The two sets of displacement sensors 4, steel ropes 72, return springs 74, and measuring rings 73 are symmetrically arranged with the center line of the measuring cylinder 5 as the axis of symmetry. Both sets of sliding rings 71 are installed in the anchor rod 1, and the positions of the two sets of sliding rings 71 are different heights. The sliding ring 71 with the lower height is pierced by the steel rope 72, and the sliding ring 71 with the higher height is pierced by the measuring steel wire rope 2. Through this arrangement, the delamination situation at different positions of the roof can be measured twice, obtaining more comprehensive roof delamination data, ensuring that the measuring device can continuously and accurately monitor the changing trend of the roof delamination value, and enhancing the practicality and stability of the device.

[0032] Furthermore, a reinforcement component 6 is provided on the anchor rod 1. The reinforcement component 6 includes a positioning ring 61, which is fixed on the anchor rod 1. The positioning ring 61 is rotatably connected to an installation plate 63 on the side near the collar 3. The installation plate 63 is fixedly installed by bolts 62. By using the installation plate 63 and bolts 62, the device can be reinforced and stably installed under the top plate.

[0033] It should be noted that the above electrical components are all existing technology products. They are selected, installed and debugged by those skilled in the art according to the needs of use to ensure that all electrical appliances can work normally. The components are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here.

[0034] In use, the device is installed under the top plate. When the top plate sinks, the anchor rod 1 descends. Since the top of the measuring wire rope 2 remains stationary, the measuring wire rope 2 pulls the measuring ring 73 upward relative to the anchor rod 1 (reference). Figure 2 This causes the steel rope 72 to move, which in turn compresses the measuring ring 73 and the return spring 74, allowing it to slide on the measuring cylinder 5. The displacement sensor 4 monitors the distance the measuring ring 73 moves. At the same time, the measuring steel wire rope 2 can be flexibly turned by rotating the ring 711 to avoid twisting when turning to multiple horizontal directions.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A mine roof delamination monitoring device, comprising an anchor bolt (1), characterized in that: The anchor rod (1) is pierced by a measuring wire rope (2), and the measuring wire rope (2) slides against the anchor rod (1). A collar (3) is fixedly connected to the bottom of the anchor rod (1). A displacement sensor (4) is fixedly installed on the side wall of the collar (3). A measuring cylinder (5) is sleeved in the collar (3). A fixing ring (51) is fixedly connected to the inner wall of the measuring cylinder (5). A detection component (7) is provided in the measuring cylinder (5). The detection component (7) includes: A sliding ring (71) is slidably connected to the inner wall of the anchor rod (1); A steel rope (72), one end of which is fixedly connected to the lower side of a sliding ring (71), and the other end of which is fixedly connected to a measuring ring (73) away from the sliding ring (71); A reset spring (74) is provided, with its two ends fixed to a fixing ring (51) and a measuring ring (73), respectively.

2. The mine roof delamination monitoring device according to claim 1, characterized in that: The fixed ring (51) has a through hole in the middle, and the through hole matches the measuring wire rope (2).

3. The mine roof delamination monitoring device according to claim 1, characterized in that: The displacement sensor (4), sliding ring (71), steel rope (72), reset spring (74) and measuring ring (73) are each provided in two sets, and the two sets of displacement sensor (4), steel rope (72), reset spring (74) and measuring ring (73) are symmetrically arranged with the center line of measuring cylinder (5) as the axis of symmetry.

4. The mine roof delamination monitoring device according to claim 1, characterized in that: Both sets of sliding rings (71) are set in the anchor rod (1), and the positions of the two sets of sliding rings (71) are one high and one low.

5. A mine roof delamination monitoring device according to claim 1, characterized in that: The upper side of the sliding ring (71) is rotatably connected to a rotating ring (711), which is connected to the measuring wire rope (2). The lower sliding ring (71) is pierced by the steel rope (72), and the higher sliding ring (71) is pierced by the measuring wire rope (2).

6. A mine roof delamination monitoring device according to claim 5, characterized in that: A guide post (52) is fixedly connected to the inner wall of the measuring cylinder (5), a guide groove (53) is provided on the outer wall of the measuring cylinder (5), and a through-hole (54) matching the steel rope (72) is provided on the outer wall of the measuring cylinder (5).

7. A mine roof delamination monitoring device according to claim 5, characterized in that: The anchor rod (1) is provided with a reinforcement component (6), which includes a positioning ring (61). The positioning ring (61) is fixed on the anchor rod (1). The positioning ring (61) is rotatably connected to an installation plate (63) on the side of the positioning ring (61) near the collar (3). The installation plate (63) is fixedly installed by bolts (62).

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