Strip coal pillar stability test device
By designing an adjustable pressure moving and transmission mechanism, the problem of uncontrollable pressure in existing devices was solved, achieving accuracy and multi-size adaptability in coal pillar stability testing, and reducing production costs.
Patent Information
- Application Number
- CN202423227245.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing coal pillar stability testing equipment cannot control the pressure applied to the coal pillar, resulting in inaccurate test results. Furthermore, it requires the purchase of equipment of various sizes to accommodate coal pillars of different sizes, increasing production costs.
A strip coal pillar stability testing device was designed, which includes a moving mechanism and a transmission mechanism. The rotating column driven by the motor drives the screw to rotate, thereby realizing the adjustable control of the pressure of the coal pillar. Different sizes of coal pillars can be adapted by changing the extrusion blocks of different sizes.
It achieves precise control of coal pillar pressure, improves the accuracy of test results, reduces the need for adaptability to coal pillars of different sizes, and lowers production costs.
Smart Images
Figure CN223692142U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the coal pillar field, concretely is strip coal pillar stability test device. BACKGROUND
[0002] The part that is not mined in the mining face when mining for safety during coal mining is the part that is not mined, that is, the coal pillar, which is an important standard for measuring the mining rate of a mining area. It is also an important indicator of coal production safety.
[0003] The coal pillar is similar to the isolation belt and the bearing wall, which is left for safety, and it mainly protects water, ground pressure and other aspects of the damage to the surface and the roadway, so the production standard of the coal pillar pays great attention to the stability and compression resistance of itself. The stability of the coal pillar is usually tested by a coal pillar stability test device.
[0004] The current coal pillar stability test device cannot control the size of the pressure when applying pressure to the coal pillar, and can only apply a fixed size of pressure to the coal pillar, which will make the test result not accurate enough. The coal pillar stability test device cannot be fixed for different sizes, so multiple sizes of coal pillar stability test devices need to be purchased, increasing the production cost. INVENTION CONTENTS
[0005] In order to make up for the shortcomings of the prior art, the current coal pillar stability test device cannot control the size of the pressure when applying pressure to the coal pillar, and can only apply a fixed size of pressure to the coal pillar, which will make the test result not accurate enough. The coal pillar stability test device cannot be fixed for different sizes, so multiple sizes of coal pillar stability test devices need to be purchased, increasing the production cost. The utility model provides a strip coal pillar stability test device.
[0006] The utility model solves the technical scheme that it adopts: the strip coal pillar stability test device provided by the utility model, including device body, mobile mechanism is provided at device body front part, mobile mechanism includes two groups of mobile slot, and two groups mobile slot are opened in device body front part, screw rod is rotatably connected in mobile slot inside two ends, the both ends outside of screw rod are connected with the moving block of thread, the moving block front part is fixedly connected with the mounting plate, the mounting plate bottom end is opened in the sliding slot, the sliding slot inside is inserted with the extrusion block, the one side of extrusion block is opened in the circular arc groove, the circular arc groove top is provided with coal pillar, the device body top is provided with transmission mechanism, the mounting plate front part is provided with compression mechanism.
[0007] Preferably, the screw rod is fixedly connected with a stop column on the outside of the middle part, and the threads opened at both ends of the screw rod are opposite, and the size of the moving block is matched with the mobile slot.
[0008] Preferably, the transmission mechanism comprises two groups of rotating columns, and the two groups of rotating columns are fixedly connected with the top ends of the two groups of screw rods through the device body, and a transmission belt is arranged outside the rotating columns.
[0009] Preferably, a protective shell is arranged outside the transmission belt, and the protective shell is fixedly connected with the top end of the device body, one end of the protective shell is fixedly connected with a motor, and the output shaft of the motor is fixedly connected with one of the rotating columns through the protective shell.
[0010] Preferably, the compression mechanism comprises a compression groove, the compression groove is arranged on the front of the mounting plate, long rods are fixedly connected with the two ends inside the mounting plate, a sliding block is arranged outside the long rods, a fixed plate is fixedly connected with the front of the sliding block, and a square block is fixedly connected with the front of the fixed plate.
[0011] Preferably, springs are arranged outside the long rods, and the two ends of the springs are fixedly connected with the top end of the compression groove and the top end of the sliding block.
[0012] The utility model discloses a beneficial effect lies in:
[0013] 1. The utility model discloses a structure design of moving mechanism and transmission mechanism, realizes the rotation of the rotating column connected with it through the motor opening, because the transmission belt is arranged outside the two groups of rotating columns, so the two groups of rotating columns drive the rotation of the two groups of screw rods, thereby driving the mounting plate and the extruding block at the two ends of the screw rod to move towards each other and extrude the coal column inside the circular arc groove, thereby judging the stability of the coal column through the size of the pressure applied, which can fix the coal column and also can change the pressure applied on the coal column by changing the position of the two mounting plates, solving the problem that the coal column stability test device cannot control the size of the pressure when applying pressure to the coal column, and can only apply a fixed size of pressure to the coal column, which makes the test result not accurate enough.
[0014] 2. The utility model discloses a structure design of compression mechanism, realizes the function that the extruding block of different size circular arc groove can be replaced, solves the problem that the coal column stability test device of different size cannot be fixed, so it is necessary to purchase coal column stability test devices of multiple sizes, increasing the production cost. ACCURATE DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the 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 also be obtained according to these drawings without paying the creativity labor.
[0016] Figure 1It is the structure schematic view of the front three-dimensional structure of the utility model;
[0017] Figure 2 It is the structure schematic view of the top dismounting of the utility model;
[0018] Figure 3 It is the structure schematic view of the compression mechanism dismounting of the utility model;
[0019] Figure 4 It is the structure schematic view of the Figure 3 It is the structure schematic view of the partial enlargement of A place in the middle.
[0020] In the figure: 1, device body; 2, moving groove; 3, screw rod; 4, moving block; 5, mounting plate; 6, sliding groove; 7, extrusion block; 8, circular arc groove; 9, coal column; 10, blocking column; 11, rotating column; 12, transmission belt; 13, protective shell; 14, motor; 15, compression groove; 16, long rod; 17, sliding block; 18, fixed plate; 19, square block; 20, spring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the 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 the person skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] Please refer to Figure 1 - Figure 4 As shown in the figure, the strip coal column stability test device, including device body 1, device body 1 front part is provided with moving mechanism, moving mechanism includes two groups of moving grooves 2, and two groups of moving grooves 2 are opened in device body 1 front part, and the both ends of moving groove 2 are rotatably connected with screw rod 3, and the both ends of screw rod 3 are threadedly connected with moving block 4, and the front part of moving block 4 is fixedly connected with mounting plate 5, and the bottom end of mounting plate 5 is provided with sliding groove 6, and sliding groove 6 is inserted with extrusion block 7, and one side of extrusion block 7 is provided with circular arc groove 8, and the top end of circular arc groove 8 is provided with coal column 9, and the top end of device body 1 is provided with transmission mechanism, and the front part of mounting plate 5 is provided with compression mechanism;
[0023] When working, first, the size of coal column 9 needing to be tested is determined, and the extrusion block 7 with different size circular arc groove 8 is replaced, then one group or more groups of coal column 9 needing to be tested are placed in the circular arc groove 8 at the top end of extrusion block 7 at the bottom end of device body 1, at this time, the motor 14 is started to drive two groups of screw rods 3 to rotate in cooperation with transmission mechanism, thereby driving two groups of extrusion blocks 7 at the bottom end of device body 1 and two groups of extrusion blocks 7 at the top end to move towards each other and extrude coal column 9, and the pressure received by coal column 9 is adjusted by the direct distance of extrusion block 7.
[0024] Further, as Figure 1 shown, the middle of the screw rod 3 is fixedly connected with a blocking column 10, and the threads opened at both ends of the screw rod 3 are opposite, the size of the moving block 4 is matched with the moving groove 2;
[0025] When working, the screw rod 3 should rotate to drive the moving block 4 to rotate, but the size of the moving block 4 is matched with the moving groove 2, and the tendency of the moving block 4 to rotate is hindered inside the moving groove 2, so the moving block 4 cannot rotate, and through the characteristics of the threaded connection, the screw rod 3 rotates the moving block 4 to move, and the threads opened at both ends of the screw rod 3 are opposite, so the moving block 4 at both ends of the screw rod 3 will move towards each other when the screw rod 3 rotates, and the blocking column 10 can play a limiting role to prevent the two groups of moving blocks 4 from colliding.
[0026] Further, as Figure 2 shown, the transmission mechanism includes two groups of rotating columns 11, and the two groups of rotating columns 11 are fixedly connected with the two groups of screw rods 3 at the top ends and penetrate the device body 1, and the rotating column 11 is externally sleeved with a transmission belt 12;
[0027] When working, if you want to install the plate 5 to be stable and parallel to each other, you need to rotate the two groups of screw rods 3 together, and originally you need to control the two groups of screw rods 3 with two groups of motors 14, but this increases the production cost, so the transmission belt 12 is sleeved outside the two groups of rotating columns 11 fixedly connected with the screw rod 3, so that one group of rotating columns 11 can drive the other group of rotating columns 11 to rotate, that is, the two groups of screw rods 3 rotate together.
[0028] Further, as Figure 2 shown, the transmission belt 12 is externally provided with a protective shell 13, and the protective shell 13 is fixedly connected with the top end of the device body 1, one end of the protective shell 13 is fixedly connected with a motor 14, and the output shaft of the motor 14 is fixedly connected with one of the rotating columns 11 penetrating the protective shell 13;
[0029] When working, the transmission belt 12 will be driven when the transmission mechanism works, and in order to prevent the transmission belt 12 from falling off and the transmission belt 12 from hurting the outside workers, the transmission belt 12 is externally provided with a protective shell 13.
[0030] Further, as Figure 4 shown, the compression mechanism includes a compression groove 15, the compression groove 15 is opened in the front of the mounting plate 5, the long rod 16 is fixedly connected inside the mounting plate 5 at both ends, the sliding block 17 is sleeved outside the long rod 16, the fixed plate 18 is fixedly connected in front of the sliding block 17, and the square block 19 is fixedly connected in front of the fixed plate 18;
[0031] When it is necessary to perform stability tests on coal pillars 9 of different sizes during operation, it is necessary to replace the extrusion block 7 with an arc groove 8 of different sizes. At this time, move the square block 19 to move the fixing plate 18 to the end away from the extrusion block 7, and remove the extrusion block 7 from the slide 6 to replace it with a suitable extrusion block 7.
[0032] Furthermore, such as Figure 4 As shown, a spring 20 is sleeved on the outside of the long rod 16, and the two ends of the spring 20 are fixedly connected to the top of the compression groove 15 and the top of the slider 17.
[0033] During operation, after replacing the extrusion block 7, the block 19 is released, and the previously compressed spring 20 pushes the slider 17 and the fixing plate 18 out to be close to the front of the extrusion block 7, at which point the extrusion block 7 is fixed.
[0034] The working principle is as follows: First, determine the size of the coal column 9 to be tested. When it is necessary to conduct stability tests on coal columns 9 of different sizes, it is necessary to replace the extrusion block 7 with an arc groove 8 of different sizes. At this time, move the block 19 to move the fixing plate 18 to the end away from the extrusion block 7, and remove the extrusion block 7 from the slide 6 to replace it with a suitable extrusion block 7. Then, place one or more sets of coal columns 9 to be tested in the arc groove 8 at the top of the extrusion block 7 at the bottom of the device body 1. At this time, turn on the motor 14 to drive the two sets of screws 3 to rotate, thereby driving the two sets of extrusion blocks 7 at the bottom and the two sets of extrusion blocks 7 at the top of the device body 1 to move towards each other and extrude the coal column 9. The pressure on the coal column 9 is adjusted by the distance between the extrusion blocks 7.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A strip pillar stability test apparatus, characterised in that: The device includes a device body (1), a moving mechanism is provided at the front of the device body (1), the moving mechanism includes two sets of moving slots (2), and the two sets of moving slots (2) are opened at the front of the device body (1). The two ends of the moving slots (2) are rotatably connected to screws (3), and the two ends of the screws (3) are threadedly connected to moving blocks (4). The front of the moving blocks (4) is fixedly connected to an installation plate (5). The bottom of the installation plate (5) is provided with a sliding groove (6), and a pressing block (7) is inserted into the sliding groove (6). A circular arc groove (8) is provided on one side of the pressing block (7), and a coal pillar (9) is provided at the top of the circular arc groove (8). The top of the device body (1) is provided with a transmission mechanism, and the front of the installation plate (5) is provided with a compression mechanism.
2. The strip-pillar stability test apparatus of claim 1, wherein: A stop post (10) is fixedly connected to the outer side of the middle part of the screw (3), and the threads at both ends of the screw (3) are opposite. The size of the moving block (4) is adapted to the moving groove (2).
3. The strip-pillar stability test apparatus of claim 2, wherein: The transmission mechanism includes two sets of rotating columns (11), and the two sets of rotating columns (11) pass through the device body (1) and are fixedly connected to the top ends of the two sets of screws (3). A transmission belt (12) is sleeved on the outside of the rotating columns (11).
4. The strip-pillar stability test apparatus of claim 3, wherein: A protective shell (13) is provided on the outside of the transmission belt (12), and the protective shell (13) is fixedly connected to the top of the device body (1). A motor (14) is fixedly connected to one end of the protective shell (13), and the output shaft of the motor (14) passes through the protective shell (13) and is fixedly connected to one of the rotating columns (11).
5. The strip-pillar stability test apparatus of claim 4, wherein: The compression mechanism includes a compression groove (15), which is located at the front of the mounting plate (5). Long rods (16) are fixedly connected to both ends inside the mounting plate (5). A slider (17) is sleeved on the outside of the long rods (16). A fixing plate (18) is fixedly connected to the front of the slider (17). A block (19) is fixedly connected to the front of the fixing plate (18).
6. The strip-pillar stability test apparatus of claim 5, wherein: A spring (20) is fitted on the outside of the long rod (16), and the two ends of the spring (20) are fixedly connected to the top of the compression groove (15) and the top of the slider (17).