Quality inspection device for coal mining

Abstract

The utility model discloses a quality inspection device for coal mining, which comprises a support frame, the support frame is arranged on external equipment, a connecting mechanism is arranged on the support frame, the connecting mechanism comprises a speed reducer, a transmission rod, a crushing mechanism, a positioning rod, a fixing sleeve, a telescopic mechanism, a contraction block, a follow-up block, a spring and a pull sleeve, the speed reducer is arranged on the support frame, and the transmission rod is arranged on the transmission rod. The crushing mechanism is connected to the supporting frame and the transmission rod in a matched mode, positioning rods are installed at the extending end of the speed reducer and the transmission rod correspondingly, and the speed reducer, the transmission rod, the crushing mechanism, the positioning rods, a fixing sleeve, a telescopic mechanism, a contraction block, a follow-up block, a spring and a pull sleeve are matched, so that the connecting mechanism can avoid damage to a motor in the transmission process; and when the transmission force exceeds the elastic force of the spring, the positioning rod and the pressing plate can slide, so that the motor is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of quality inspection for coal mining, and more specifically, to a quality inspection device for coal mining. Background Art

[0002] In the existing quality inspection device technology used in coal mining, in order to ensure accurate detection of coal quality, it is usually necessary to crush the coal blocks into smaller particles for subsequent detection and analysis. This step is necessary because the oversized coal blocks may affect the accuracy and efficiency of the detection equipment. However, the existing quality inspection devices have certain safety hazards when performing the crushing step. Specifically, the connection between the existing crushing device and the motor is usually rigid, which means that when the coal blocks get stuck during the crushing process, the motor will be subject to great resistance, which may cause damage to the motor. This damage will not only affect the normal operation of the quality inspection device, but may also pose a threat to the safety of the operator. In addition, damage to the motor will also lead to increased maintenance costs and reduced production efficiency. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides a quality inspection device for coal mining to solve the technical problems mentioned in the background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quality inspection device for coal mine mining, comprising a support frame, which is installed on external equipment. A connecting mechanism is arranged on the support frame, and the connecting mechanism includes a reducer, a transmission rod, a crushing mechanism, a positioning rod, a fixed sleeve, a telescopic mechanism, a shrinkage block, a follower block, a spring and a pull sleeve. The reducer is installed on the support frame, and the crushing mechanism is cooperatively connected to the support frame and the transmission rod. Positioning rods are respectively installed on the protruding end of the reducer and the transmission rod. The telescopic mechanism is cooperatively connected to the shrinkage block, and a follower block is installed on the shrinkage block. A lateral groove is provided on the fixed sleeve, and the follower block is slidably connected in the lateral groove. The pull sleeve is slidably connected to the fixed sleeve, and the follower block is stuck in the pull sleeve, and the spring is connected to the pull sleeve.

[0007] The utility model is further configured that a compression spring is provided on the contraction block, a pressure plate is provided on the compression spring, the pressure plate abuts against the side wall of the positioning rod, and the design of the pressure plate ensures the transmission of the clamping power.

[0008] The utility model is further configured that a plurality of the pressing plates are provided, and a groove is provided on the side wall of each of the pressing plates. The design of the groove avoids damage to the side wall of the positioning rod.

[0009] The utility model is further configured that the telescopic mechanism includes a bidirectional sleeve, the bidirectional sleeve is installed in the fixed sleeve, a plurality of contraction grooves are equidistantly provided on the bidirectional sleeve, the contraction block is slidably connected in the contraction grooves, and the design of the telescopic mechanism ensures the continuity of the clamping.

[0010] The utility model is further configured such that insertion holes are provided in the two positioning rods, a center rod is slidably provided on the two insertion holes, a receiving sleeve is rotatably provided on the fixed sleeve, a receiving groove is provided on the receiving sleeve, the positioning rod is clamped on the receiving groove, and the design of the insertion holes ensures the coaxial setting of the positioning rods.

[0011] The utility model is further configured as follows: a motor is provided on the support frame, a transmission wheel is provided on the protruding end of the motor and the reducer, and a belt is meshed on the two transmission wheels. The design of the motor ensures the supply of power.

[0012] The utility model is further configured that the crushing mechanism includes an outer shell, an intermediate roller, crushing leaves and a limiting shell, the outer shell is installed on the support frame, the intermediate roller is connected to the transmission rod, the limiting shell is installed on the outer shell, and the crushing leaves are installed on the intermediate roller. The design of the crushing mechanism ensures the continuity of crushing.

[0013] The utility model is further configured that a feed box is provided on the shell.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a quality inspection device for coal mining, which has the following beneficial effects:

[0016] 1. The connecting mechanism provides a stable and flexible connection method to ensure that the motor will not be damaged due to excessive torque when in use. Through the coordination of the reducer, transmission rod, crushing mechanism, positioning rod, fixed sleeve, telescopic mechanism, shrinkage block, follower block, spring and pull sleeve, the connecting mechanism can avoid damage to the motor during the transmission process. When the transmission force exceeds the elastic force of the spring, sliding will occur between the positioning rod and the pressure plate, thereby protecting the motor.

[0017] 2. The telescopic mechanism provides a flexible and adaptable adjustment method, ensuring the stable fixation of the positioning rod and the pressure plate. Through the cooperation of the two-way sleeve, contraction groove, contraction block, follower block, spring and pull sleeve, the telescopic mechanism can provide pressure between the positioning rod and the pressure plate during rotation, thereby ensuring the fixing effect.

[0018] 3. The crushing mechanism provides an efficient and reliable crushing method, ensuring that the quality inspection device used in coal mining can crush the coal blocks into a size suitable for inspection. Through the cooperation of the outer shell, intermediate rollers, crushing leaves and limit shells, the crushing mechanism can effectively crush the coal blocks into the required particle size during the crushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a quality inspection device for coal mining in the utility model;

[0020] Figure 2 For the utility model Figure 1 A schematic cross-sectional structure diagram of ;

[0021] Figure 3 It is a structural schematic diagram of the connecting mechanism in the utility model;

[0022] Figure 4 It is a cross-sectional structural schematic diagram of the fixing sleeve in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the pull sleeve and the spring in the utility model.

[0024] In the figure: 1. support frame; 2. reducer; 3. transmission rod; 4. positioning rod; 5. fixing sleeve; 6. contraction block; 7. follower block; 8. spring; 9. pulling sleeve; 10. lateral groove; 11. compression spring; 12. pressure plate; 13. groove; 14. two-way sleeve; 15. contraction groove; 16. insertion hole; 17. center rod; 18. receiving sleeve; 19. receiving groove; 20. motor; 21. transmission wheel; 22. belt; 23. outer shell; 24. intermediate roller; 25. crushing leaf; 26. limit shell; 27. feed box. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0028] See also Figure 1-5A quality inspection device for coal mining includes a support frame 1, which is installed on external equipment. A connecting mechanism is arranged on the support frame 1, and the connecting mechanism includes a reducer 2, a transmission rod 3, a crushing mechanism, a positioning rod 4, a fixed sleeve 5, a telescopic mechanism, a contraction block 6, a follower block 7, a spring 8 and a pull sleeve 9. The reducer 2 is installed on the support frame 1, and the crushing mechanism is cooperatively connected to the support frame 1 and the transmission rod 3. The protruding end of the reducer 2 and the transmission rod 3 are respectively equipped with a positioning rod 4, the telescopic mechanism is cooperatively connected to the contraction block 6, and the contraction block 6 is equipped with a follower block 7. A lateral groove 10 is opened on the fixed sleeve 5, and the follower block 7 is slidably connected in the lateral groove 10. The pull sleeve 9 is slidably connected to the fixed sleeve 5. The movable block 7 is stuck in the pull sleeve 9, the spring 8 is connected to the pull sleeve 9, the shrinkage block 6 is provided with a compression spring 11, and the compression spring 11 is provided with a pressure plate 12, the pressure plate 12 is in contact with the side wall of the positioning rod 4, and there are multiple pressure plates 12, and each pressure plate 12 has a groove 13 on the side wall. The telescopic mechanism includes a two-way sleeve 14, the two-way sleeve 14 is installed in the fixed sleeve 5, and the two-way sleeve 14 is equidistantly provided with a plurality of shrinkage grooves 15, the shrinkage block 6 is slidably connected in the shrinkage groove 15, the two positioning rods 4 are provided with insertion holes 16, and the two insertion holes 16 are slidably provided with a center rod 17, and the fixed sleeve 5 is rotatably provided with a receiving sleeve 18, and the receiving sleeve 18 is provided with a receiving groove 19, and the positioning rod 4 is stuck on the receiving groove 19.

[0029] In this embodiment, when transmission is required, since the spring 8 is connected to the two pull sleeves 9 and the follower block 7 is stuck on the pull sleeve 9, the multiple contraction blocks 6 can be pulled toward the center under the action of the spring 8. Since the contraction block 6 is slidably connected in the contraction groove 15, the compression spring 11 drives the pressure plate 12 to contact the positioning rod 4. Under the action of multiple compression springs 11 and the pressure plate 12, the two positioning rods 4 are in a clamped state, and the two positioning rods 4 are coaxially limited by the center rod 17. When the crushing leaf 25 is stuck, the torque at this time will exceed the pulling force of the spring 8, and then relative sliding will occur between the multiple pressure plates 12 and the positioning rods 4, thereby avoiding damage to the motor 20.

[0030] See also Figure 1 and Figure 2 As an implementation method of the crushing mechanism: a motor 20 is provided on the support frame 1, and a transmission wheel 21 is provided on the protruding end of the motor 20 and the reducer 2. Belts 22 are meshed on the two transmission wheels 21. The crushing mechanism includes an outer shell 23, an intermediate roller 24, crushing leaves 25 and a limiting shell 26. The outer shell 23 is installed on the support frame 1, the intermediate roller 24 is connected to the transmission rod 3, the limiting shell 26 is installed on the outer shell 23, the crushing leaves 25 are installed on the intermediate roller 24, and a feed box 27 is provided on the outer shell 23.

[0031] More specifically, when the coal block needs to be crushed before testing, the coal block is placed in the feed box 27, and then the rotation of the transmission rod 3 can drive the rotation of the crushing leaves 25. The coal block is limited by the crushing leaves 25 and the limiting shell 26, and then it is crushed to the corresponding range, thereby meeting the testing requirements and improving the use effect.

[0032] In summary, when the overall equipment is in use or running: when transmission is required, since the spring 8 is connected to the two pull sleeves 9, and the follower block 7 is stuck on the pull sleeve 9, the multiple contraction blocks 6 can be pulled toward the center under the action of the spring 8. Since the contraction block 6 is slidably connected in the contraction groove 15, the compression spring 11 drives the pressure plate 12 to contact the positioning rod 4. Under the action of multiple compression springs 11 and the pressure plate 12, the two positioning rods 4 are in a clamped state, and the two positioning rods 4 are coaxially limited by the center rod 17. When the crushing leaf 25 is stuck, the torque at this time will exceed the tension of the spring 8, and then relative sliding will occur between the multiple pressure plates 12 and the positioning rods 4, thereby avoiding damage to the motor 20.

[0033] When the coal block needs to be crushed before testing, the coal block is placed in the feed box 27, and then the rotation of the transmission rod 3 can drive the rotation of the crushing leaves 25. The coal block is limited by the crushing leaves 25 and the limiting shell 26, and then it is crushed to the corresponding range, thereby meeting the testing requirements and improving the use effect.

[0034] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A quality inspection device for coal mining, comprising a support frame (1), characterized in that: The support frame (1) is installed on the external equipment. The support frame (1) is provided with a connecting mechanism, which includes a reducer (2), a transmission rod (3), a crushing mechanism, a positioning rod (4), a fixed sleeve (5), a telescopic mechanism, a shrinking block (6), a follower block (7), a spring (8) and a pull sleeve (9). The reducer (2) is installed on the support frame (1). The crushing mechanism is cooperatively connected to the support frame (1) and the transmission rod (3). The protruding end of the reducer (2) and the transmission rod (3) are respectively equipped with a positioning rod (4). The telescopic mechanism is cooperatively connected to the shrinking block (6). The follower block (7) is installed on the shrinking block (6). A lateral groove (10) is provided on the fixed sleeve (5). The follower block (7) is slidably connected in the lateral groove (10). The pull sleeve (9) is slidably connected to the fixed sleeve (5). The follower block (7) is stuck in the pull sleeve (9). The spring (8) is connected to the pull sleeve (9).

2. A quality inspection device for coal mining according to claim 1, characterized in that: The shrink block (6) is provided with a compression spring (11), the compression spring (11) is provided with a pressure plate (12), and the pressure plate (12) abuts against the side wall of the positioning rod (4).

3. A quality inspection device for coal mining according to claim 2, characterized in that: A plurality of pressing plates (12) are provided, and a groove (13) is provided on the side wall of each pressing plate (12).

4. A quality inspection device for coal mining according to claim 3, characterized in that: The telescopic mechanism comprises a bidirectional sleeve (14), which is installed in a fixed sleeve (5), and a plurality of contraction grooves (15) are equidistantly provided on the bidirectional sleeve (14), and a contraction block (6) is slidably connected in the contraction grooves (15).

5. A quality inspection device for coal mining according to claim 4, characterized in that: Insertion holes (16) are provided in the two positioning rods (4), center rods (17) are slidably provided on the two insertion holes (16), a receiving sleeve (18) is rotatably provided on the fixed sleeve (5), a receiving groove (19) is provided on the receiving sleeve (18), and the positioning rod (4) is clamped on the receiving groove (19).

6. A quality inspection device for coal mining according to claim 5, characterized in that: The support frame (1) is provided with a motor (20), the extended end of the motor (20) and the reducer (2) are both provided with transmission wheels (21), and the two transmission wheels (21) are meshed with belts (22).

7. A quality inspection device for coal mining according to claim 1, characterized in that: The crushing mechanism comprises an outer shell (23), an intermediate roller (24), crushing leaves (25) and a limiting shell (26); the outer shell (23) is mounted on a support frame (1); the intermediate roller (24) is connected to a transmission rod (3); the limiting shell (26) is mounted on the outer shell (23); and the crushing leaves (25) are mounted on the intermediate roller (24).

8. A quality inspection device for coal mining according to claim 7, characterized in that: A feed box (27) is provided on the housing (23).

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