Coal mine scraper conveyer

Abstract

The utility model discloses a coal mine scraper conveyer which comprises a rack, a scraper base and a base, a traction chain is installed in the rack, the two ends of the traction chain are connected with the rack through driving chain wheels, an installation groove is formed in one side of the scraper base, inserting grooves are formed in the installation groove, inserting holes are formed between the inserting grooves and located in the scraper base, and the scraper base is provided with a plurality of inserting holes. The scraper base is provided with a mounting groove, a scraper is arranged in the mounting groove, an insertion plate matched with the insertion groove is fixedly arranged on one side of the scraper, and threaded holes are formed in the insertion plate and the insertion groove. The scraper base and the base which are damaged and abraded can be replaced in time, the trouble of workers during disassembly and assembly is effectively reduced, the working efficiency of maintenance is greatly improved, the scraper is installed on one side of the scraper base through the locking bolt, the scraper can be replaced, and convenience of scraper maintenance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper conveyors, in particular to a coal mine scraper conveyor. Background Technique

[0002] When a full-section heading machine in a coal mine is driving a rock roadway, the scraper conveyor is in a transportation state, and coal is transported out through the scraper conveyor. This kind of equipment is very common in coal mining. As an important part of the scraper conveyor, in order to reduce the friction between the scraper and the rock powder adhered to both sides of the chute or prevent the rock powder adhered to both sides of the chute from jamming the scraper, the scraper is optimized so that both sides of the scraper are set to be inclined and slidably arranged inside the frame. When the scraper moves, the inclined parts at both ends can push the materials, reducing the jamming of the scraper caused by the crushed rock powder.

[0003] However, during the process of pushing materials by the scraper, large-volume materials falling from a height and hitting the scraper will cause impact and wear on the scraper, deforming the scraper. The deformed scraper will be jammed between the chain and the driving sprocket during the chain transmission, affecting the normal use of the scraper conveyor. At this time, the scraper needs to be replaced. Since the fixing method between the scraper and the chain is complex, it increases the trouble of replacing the scraper. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a coal mine scraper conveyor that is convenient for replacing the scraper installed on the traction chain, so as to solve the problems raised in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: a coal mine scraper conveyor, which includes a frame, a scraper base and a base. A traction chain is installed inside the frame, and both ends of the traction chain are connected to the frame through drive sprockets. An installation groove is formed on one side of the scraper base, a slot is formed inside the installation groove, a jack is formed on the scraper base between the slots, a scraper is arranged inside the installation groove, a plug board matching with the slot is fixedly arranged on one side of the scraper, threaded holes are formed inside the plug board and the slot, and a locking bolt is arranged inside the threaded hole. A screw rod inserted into the jack is fixedly arranged above the base, and a locking nut is threaded on one end of the screw rod. Claw slots matching with the traction chain are formed on one side of the scraper base and the base, and a positioning member is arranged on one side of the screw rod. By adding the scraper base, the jack and the screw rod, the convenience of disassembly and assembly between the scraper base and the base is realized, the damaged and worn scraper base and base can be replaced in time, the trouble of the staff during disassembly and assembly is effectively reduced, the maintenance work efficiency is greatly improved, and the scraper is installed on one side of the scraper base by a locking bolt, so that the replacement of the scraper can be realized, and the convenience of scraper maintenance is realized.

[0006] Preferably, the positioning member includes an installation cavity formed inside the scraper base and communicating with one of the threaded holes and the jack. A trapezoidal pressing block is arranged inside the installation cavity, a pressing rod is fixedly arranged above the trapezoidal pressing block, and one end of the pressing rod extends into the threaded hole to be fixedly connected with a connecting piece. Positioning rods are arranged on both sides of the trapezoidal pressing block, one end of the positioning rod is provided with an inclined surface matching with the trapezoidal pressing block, and the other end of the positioning rod extends into the jack to be matched with a positioning groove formed on the side wall of the screw rod. Through the cooperation of the positioning member between the scraper base and the base, the stability of the installation between the two is increased, the separation between the two caused by the loosening of the locking bolt is avoided, and the installation safety is increased.

[0007] Preferably, a notch is formed on one side above the positioning rod, and a vertical plate is slidably arranged inside the notch. One end of the vertical plate is fixedly connected with the inner wall of the installation cavity, and a second spring is fixedly arranged on one side of the vertical plate. The other end of the second spring is fixedly connected with the inner wall of the notch. The second spring can realize that the positioning rod can be automatically received into the installation cavity and automatically separated from the screw rod without the action of pressure pushing, so as to realize the convenience of pulling out the screw rod from the jack.

[0008] Preferably, a first spring is sleeved on the pressing rod, and the first spring can realize the reset of the pressing rod and the trapezoidal pressing block.

[0009] Preferably, a reinforcing plate fixedly connected to the scraping plate is provided on one side above the insertion plate, which increases the safety of placing the scraping plate during the process of conveying materials by the scraping plate.

[0010] Preferably, grooves are provided at the ends of the insertion holes and on one side above the scraping plate base and above the insertion plate, which can enable the locking bolts and locking nuts to extend into the grooves, increasing the aesthetics after installation.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By optimizing the scraping plate installation structure on the existing scraper conveyor, the present utility model realizes the convenience of disassembly and assembly between the scraping plate base and the base by adding a scraping plate base, insertion holes, and screws, enables timely replacement of damaged and worn scraping plate bases and bases, effectively reduces the trouble of staff during disassembly and assembly, greatly improves the maintenance work efficiency, and the scraping plate is installed on one side of the scraping plate base by locking bolts, which can realize the replacement of the scraping plate and the convenience of scraping plate maintenance. The cooperation between the scraping plate base and the base through the positioning parts increases the stability of the installation between the two, avoids the separation between the two caused by the loosening of the locking bolts, and increases the safety of the installation. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the connection structure between the scraping plate base, the base and the traction chain in the present utility model;

[0015] Figure 3 is a schematic diagram of the structure of the scraping plate base in the present utility model;

[0016] Figure 4 is a schematic diagram of the installation between the scraping plate base and the base in the present utility model;

[0017] Figure 5 is an exploded view of the scraping plate base and the base in the present utility model;

[0018] Figure 6 is a sectional view of the installation of the scraping plate base and the base in the present utility model;

[0019] Figure 7 is a sectional view of the scraping plate base in the present utility model;

[0020] Figure 8 is a schematic diagram of the structure of the positioning rod in the present utility model.

[0021] In the figure: 1, frame; 2, traction chain; 3, scraper base; 4, installation groove; 5, slot; 6, jack; 7, scraper; 8, insertion plate; 9, threaded hole; 10, locking bolt; 11, base; 12, screw rod; 13, locking nut; 14, installation cavity; 15, trapezoidal pressing block; 16, pressing rod; 17, first spring; 18, positioning rod; 19, positioning groove; 20, notch; 21, vertical plate; 22, second spring; 23, reinforcing plate; 24, card slot. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0023] Embodiment 1

[0024] Please refer to Figures 1-8 , a coal mine scraper conveyor shown in the figure, including a frame 1, a scraper base 3 and a base 11. A traction chain 2 is installed inside the frame 1. Both ends of the traction chain 2 are connected to the frame 1 through drive sprockets. An installation groove 4 is opened on one side of the scraper base 3. A slot 5 is opened inside the installation groove 4. Jacks 6 are opened between the slots 5 and on the scraper base 3. A scraper 7 is provided inside the installation groove 4. An insertion plate 8 matching the slot 5 is fixedly provided on one side of the scraper 7. Threaded holes 9 are opened inside the insertion plate 8 and the slot 5. A locking bolt 10 is provided inside the threaded hole 9. A screw rod 12 inserted into the jack 6 is fixedly provided above the base 11. A locking nut 13 is threadedly provided at one end of the screw rod 12. Card slots 24 matching the traction chain 2 are opened on one side of the scraper base 3 and the base 11, and a positioning member is provided on one side of the screw rod 12.

[0025] Please refer to Figures 6-8 , the positioning member shown in the figure includes an installation cavity 14 opened inside the scraper base 3 and communicating with one of the threaded holes 9 and the jack 6. A trapezoidal pressing block 15 is provided inside the installation cavity 14. A pressing rod 16 is fixedly provided above the trapezoidal pressing block 15. One end of the pressing rod 16 extends into the threaded hole 9 and is fixedly connected to a connecting piece. Positioning rods 18 are provided on both sides of the trapezoidal pressing block 15. One end of the positioning rod 18 is provided with an inclined surface matching the trapezoidal pressing block 15. The other end of the positioning rod 18 extends into the jack 6 and matches a positioning groove 19 opened on the side wall of the screw rod 12.

[0026] When replacing the scraper on the scraper conveyor: First, place the base 11 below the traction chain 2 and at a horizontally placed section of the traction chain 2, and place the traction chain 2 in the card slot 24 on one side of the base 11. Then place the scraper base 3. When placing the scraper base 3, the jack hole 6 on the scraper base 3 needs to be aligned with the screw 12 first. The card slot 24 below the scraper base 3 is aligned with the card slot 24 on the base 11 and is clamped on the traction chain 2. And insert the screw 12 into the jack hole 6 and tighten the locking nut 13 at one end above the scraper base 3, then the fixation between the scraper base 3 and the base 11 can be realized, and it is fixedly connected with the traction chain 2, realizing the installation of the scraper base 3 and the base 11 on the traction chain 2, increasing the convenience of installation. Then insert the insertion plate 8 on one side of the scraper 7 into the slot 5. After the insertion plate 8 is inserted into the slot 5, push the scraper 7 into the installation slot 4 on one side of the scraper base 3 to realize the installation of the insertion plate 8 and the scraper 7. Then screw the locking bolt 10 into the threaded hole 9, and the fixation between the insertion plate 8 and the scraper base 3 can be realized, increasing the stability of the installation and fixation of the scraper 7, and at the same time facilitating the installation and disassembly of the scraper 7;

[0027] When the locking bolt 10 is screwed into the threaded hole 9, one of the locking bolts 10 located between the jack holes 6 can play a role in pushing the positioning member in the installation cavity 14 of the scraper base 3. When the locking bolt 10 is screwed into the threaded hole 9, the pressing rod 16 can be squeezed downward during the screwing process, and the pressing rod 16 drives the trapezoidal pressing block 15 to move downward. When selecting the trapezoidal pressing block 15, an isosceles trapezoidal pressing block is selected. At this time, both sides of the trapezoidal pressing block 15 can contact the inclined surfaces opened at the ends of the positioning rods 18. When the trapezoidal pressing block 15 moves downward, it can push the positioning rods 18. At this time, the positioning rods 18 can slide to both sides inside the installation cavity 14, and the other end of the positioning rod 18 extends through the installation cavity 14 and inserts into the positioning groove 19 on the side wall of the screw 12. At this time, the limit of the screw 12 can be realized. When the scraper base 3 shakes under the drive of the traction chain 2 and causes the locking nut 13 at the end of the screw 12 to loosen, at this time, the screw 12 is limited by the positioning rod 18, which can prevent the screw 12 from being pulled out of the jack hole 6, increasing the stability of the installation of the screw 12 and avoiding the separation between the scraper base 3 and the base 11, greatly improving the safety of the fixation between the scraper base 3 and the base 11;

[0028] The device has a simple structure. By adding a scraper base 3, a jack 6 and a screw 12, the convenience of disassembly and assembly between the scraper base 3 and the base 11 is realized, and the damaged and worn scraper base 3 and base 11 can be replaced in time, effectively reducing the trouble of the staff during disassembly and assembly, greatly improving the maintenance work efficiency. Moreover, the scraper 7 is installed on one side of the scraper base 3 by a locking bolt 10, which can realize the replacement of the scraper 7 and the convenience of scraper 7 maintenance. Through the cooperation of positioning parts between the scraper base 3 and the base 11, the stability of their installation is increased, avoiding the separation between them caused by the loosening of the locking bolt 10 and increasing the safety of installation.

[0029] Embodiment 2

[0030] Please refer to Figures 6-8 , this embodiment further illustrates Embodiment 1. The positioning part in the figure includes an installation cavity 14 opened inside the scraper base 3 and communicating with one of the threaded holes 9 and the jack 6. A trapezoidal pressing block 15 is arranged inside the installation cavity 14, and a pressing rod 16 is fixedly arranged above the trapezoidal pressing block 15. One end of the pressing rod 16 extends into the threaded hole 9 and is fixedly connected with a connecting piece. Positioning rods 18 are arranged on both sides of the trapezoidal pressing block 15. One end of the positioning rod 18 is provided with an inclined surface matching the trapezoidal pressing block 15, and the other end of the positioning rod 18 extends into the jack 6 and matches with a positioning groove 19 opened on the side wall of the screw 12;

[0031] Please refer to Figure 7 and Figure 8 , a notch 20 is opened on one side above the positioning rod 18 in the figure, and a vertical plate 21 is slidably arranged inside the notch 20. One end of the vertical plate 21 is fixedly connected with the inner wall of the installation cavity 14, and a second spring 22 is fixedly arranged on one side of the vertical plate 21. The other end of the second spring 22 is fixedly connected with the inner wall of the notch 20;

[0032] Please refer to Figure 6 and Figure 8 , a first spring 17 is sleeved on the pressing rod 16 in the figure.

[0033] In this implementation scheme, a notch 20 is arranged on one side of the positioning rod 18, which can realize the installation of the vertical plate 21. The vertical plate 21 is fixedly connected with the inner wall of the installation cavity 14, and is connected with the inner wall of the notch 20 through the second spring 22. When the positioning rod 18 is not pushed by the trapezoidal pressing block 15 after being pushed, the elastic potential energy stored in the second spring 22 can be released, pulling the positioning rod 18 to slide into the installation cavity 14, thus realizing the separation between the positioning rod 18 and the positioning groove 19 on one side of the screw 12, realizing the automatic release of the limit of the positioning rod 18 on the screw 12, and realizing the convenience of pulling out the screw 12 from the jack 6;

[0034] A first spring 17 is sleeved on the compression rod 16. When the locking bolt 10 is screwed out of the threaded hole 9, the stretched first spring 17 releases its elastic potential energy and pulls the trapezoidal pressing block 15 upward, causing the compression rod 16 to rise. After the trapezoidal pressing block 15 rises, it no longer pushes and squeezes the end of the positioning rod 18, achieving the flexibility of the positioning rod 18 to slide in the installation cavity 14.

[0035] The first spring 17 and the second spring 22 are used in cooperation to automatically release the restraint of the positioning rod 18 on the screw 12 when replacing the scraper base 3, increasing the convenience of pulling out the screw 12 from the jack 6.

[0036] Embodiment 3

[0037] Please refer to Figure 3 , this embodiment further explains other embodiments. In the illustrated frame 1, scraper base 3, and base 11, a traction chain 2 is installed inside the frame 1. Both ends of the traction chain 2 are connected to the frame 1 through drive sprockets. An installation groove 4 is formed on one side of the scraper base 3. A slot 5 is formed inside the installation groove 4. A jack 6 is formed between the slots 5 and on the scraper base 3. A scraper 7 is provided inside the installation groove 4. A plug board 8 that matches the slot 5 is fixedly provided on one side of the scraper 7. Threaded holes 9 are formed inside both the plug board 8 and the slot 5. A locking bolt 10 is provided inside the threaded hole 9. A screw 12 inserted into the jack 6 is fixedly provided above the base 11. A locking nut 13 is threaded on one end of the screw 12. A card slot 24 that matches the traction chain 2 is formed on one side of both the scraper base 3 and the base 11, and a positioning member is provided on one side of the screw 12.

[0038] Please refer to Figure 4 , on one side above the plug board 8 in the illustration, there is a reinforcing plate 23 fixedly connected to the scraper 7;

[0039] Please refer to Figure 5 , on the end of the jack 6 and on one side above the plug board 8 and on the scraper base 3 in the illustration, grooves are formed.

[0040] In this implementation, by fixedly providing a reinforcing plate 23 connected to the scraper 7 above the plug board 8, it can support the scraper 7 during the process of the scraper 7 pushing the material, increasing the stability of the scraper 7 during the process of pushing the material. Grooves are formed at the end of the jack 6 and on one side of the plug board 8, and it can accommodate the ends of the locking nut 13 and the locking bolt 10, reducing the protrusion of the ends of the locking nut 13 and the locking bolt 10 on one side, and increasing the aesthetic appearance after the fixed connection between the scraper base 3 and the base 11.

[0041] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine scraper conveyor, characterized in that, Including: A frame (1), inside which a traction chain (2) is installed, and both ends of the traction chain (2) are connected to the frame (1) through drive sprockets; A scraper base (3), on one side of which an installation groove (4) is formed. Inside the installation groove (4), a slot (5) is formed. Between the slots (5) and on the scraper base (3), a jack (6) is formed. Inside the installation groove (4), a scraper (7) is provided. On one side of the scraper (7), a plug board (8) matching the slot (5) is fixedly provided. Threaded holes (9) are formed inside both the plug board (8) and the slot (5), and locking bolts (10) are provided inside the threaded holes (9); A base (11), above which a screw rod (12) inserted into the jack (6) is fixedly provided. At one end of the screw rod (12), a locking nut (13) is threadedly provided. On one side of both the scraper base (3) and the base (11), a card slot (24) matching the traction chain (2) is formed, and a positioning member is provided on one side of the screw rod (12).

2. A coal mine scraper conveyor according to claim 1, characterized in that, The positioning member includes an installation cavity (14) formed inside the scraper base (3) and communicating with one of the threaded holes (9) and the jack (6). Inside the installation cavity (14), a trapezoidal pressing block (15) is provided. Above the trapezoidal pressing block (15), a pressing rod (16) is fixedly provided. One end of the pressing rod (16) extends into the threaded hole (9) and is fixedly connected with a connecting piece. On both sides of the trapezoidal pressing block (15), positioning rods (18) are provided. One end of the positioning rod (18) is provided with an inclined surface matching the trapezoidal pressing block (15), and the other end of the positioning rod (18) extends into the jack (6) and matches a positioning groove (19) formed on the side wall of the screw rod (12).

3. A coal mine scraper conveyor according to claim 2, characterized in that, On one side above the positioning rod (18), a notch (20) is formed, and inside the notch (20), a vertical plate (21) is slidably provided. One end of the vertical plate (21) is fixedly connected to the inner wall of the installation cavity (14), and on one side of the vertical plate (21), a second spring (22) is fixedly provided. The other end of the second spring (22) is fixedly connected to the inner wall of the notch (20).

4. A coal mine scraper conveyor according to claim 2, characterized in that, A first spring (17) is sleeved on the pressing rod (16).

5. A coal mine scraper conveyor according to claim 1, characterized in that, On one side above the plug board (8), a reinforcing plate (23) fixedly connected to the scraper (7) is provided.

6. A coal mine scraper conveyor according to claim 1, characterized in that, At the end of the jack (6) and on one side above the scraper base (3) and the plug board (8), grooves are formed.

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