Double-chain pressing device

Abstract

The utility model discloses a double-chain pressing device which comprises a fixing plate and a scraper, a mounting device is arranged in the fixing plate and comprises a first threaded groove, a mounting motor, a first threaded rod, a first bearing, a first threaded block and a mounting plate, and a device shell is fixedly connected to the center of the interior of the fixing plate. An adjusting device is arranged in the device shell and comprises a second threaded groove, an adjusting motor, a second threaded rod, a second bearing and a second threaded block. The rotary knob is manually rotated to drive the adjusting threaded rod to rotate and descend, so that the adjusting threaded rod indirectly pushes the compression cylinder to descend, the compression spring is compressed, the scraper chain is pressed by the pressure reversely generated by the compression spring, and the pressure on the scraper chain is changed by adjusting the descending degree; the problems that too low pressure cannot play a role and too high pressure damages the device are effectively prevented, rapidness and convenience are achieved, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the scraper conveyor field for coal mine, concretely is double chain chain pressing device. BACKGROUND

[0002] The scraper conveyor for coal mine is a kind of continuous transport machinery widely used in coal mining work, uses the open chute as the bearing of coal, gangue or material etc., forms scraper chain by fixing scraper on chain, and the chain that is traction mechanism passes through the sprocket of machine head and tail to form closed loop, when the transmission part of machine head starts, the sprocket on the shaft of machine head is rotated, makes scraper chain circulate and moves material along chute, until to the unloading of machine head part, completes the delivery task, and scraper chain is prone to loosening when scraper conveyor for coal mine works, needs a device to press scraper chain, and double chain chain pressing device is important component to ensure the stable operation of conveyor and prevent chain derailment.

[0003] But the installation mechanism of traditional double chain chain pressing device cannot be adjusted, so it can only be installed on the same model of scraper conveyor for coal mine, and practicality is relatively poor, and the pressure of spring mechanism inside double chain chain pressing device to scraper chain cannot be adjusted, and too high pressure can cause the scraper chain of scraper conveyor for coal mine to break, and too low pressure cannot play the role of double chain chain pressing device, so a kind of double chain chain pressing device is presented. SUMMARY

[0004] The utility model aims at providing double chain chain pressing device, can solve the problem that traditional double chain chain pressing device cannot be installed on different models of scraper conveyor for coal mine and the pressure of spring mechanism inside to scraper chain cannot be adjusted.

[0005] To achieve the above object, provide double chain chain pressing device, including fixed plate, scraper machine, the inside of fixed plate is equipped with installation device, the installation device includes first screw groove, installation motor, first threaded rod, first bearing, first screw block, mounting plate, the inside central position of fixed plate is fixedly connected with device shell, the inside of device shell is equipped with adjusting device, the adjusting device includes second screw groove, adjusting motor, second threaded rod, second bearing, second screw block;

[0006] The upper end inside of device shell is equipped with adjusting screw groove, the inside screw groove is connected with adjusting threaded rod, the upper end of adjusting threaded rod is fixedly connected with knob, the lower end of adjusting threaded rod is rotatably connected with connecting rod.

[0007] According to the double-chain chain pressing device, characterized in that: the inside central position of the first screw groove is fixedly connected with the mounting motor, the two output shafts of the mounting motor are fixedly connected with the first threaded rod, the other end of the first threaded rod is fixedly connected with the inner ring of the first bearing, the surface of the first threaded rod is in threaded connection with the first threaded block, the other end of the first threaded block is fixedly connected with the mounting plate, the inside central position of the second screw groove is fixedly connected with the adjusting motor, the two output shafts of the adjusting motor are fixedly connected with the second threaded rod, the other end of the second threaded rod is fixedly connected with the inner ring of the second bearing, the surface of the second threaded rod is fixedly connected with the inner ring of the second bearing, and the surface of the second threaded rod is in threaded connection with the second threaded block.

[0008] According to the double-chain chain pressing device, characterized in that: the outside ring of the first bearing is fixedly connected with the first screw groove, the surface of the first threaded block is in sliding connection with the first screw groove, the outside ring of the second bearing is fixedly connected with the second screw groove, and the surface of the second threaded block is in sliding connection with the second screw groove.

[0009] According to the double-chain chain pressing device, characterized in that: the lower sides of the adjusting threaded rod are fixedly connected with the limiting rods.

[0010] According to the double-chain chain pressing device, characterized in that: the lower end of the second threaded block is fixedly connected with the compression cylinder, the inside of the compression cylinder is provided with the compression spring, the upper end of the compression spring is fixedly connected with the compression cylinder, the lower end of the compression spring is fixedly connected with the pressing plate, the surface of the pressing plate is in sliding connection with the compression cylinder, the lower end of the pressing plate is fixedly connected with the pressing rod, the lower end of the pressing rod is fixedly connected with the mounting frame, and the inside of the mounting frame is rotationally connected with the chain pressing gear.

[0011] According to the double-chain chain pressing device, characterized in that: the inside of the fixed plate is provided with the first sliding groove, the inside of the first sliding groove is in sliding connection with the first sliding block, and the other end of the first sliding block is fixedly connected with the mounting plate.

[0012] According to the double-chain chain pressing device, characterized in that: the inside of the fixed plate is provided with the first sliding groove, the inside of the first sliding groove is in sliding connection with the first sliding block, and the other end of the first sliding block is fixedly connected with the mounting plate.

[0013] According to the double-chain chain pressing device, characterized in that: the inside of the fixed plate is provided with the first sliding groove, the inside of the first sliding groove is in sliding connection with the first sliding block, and the other end of the first sliding block is fixedly connected with the mounting plate.

[0014] Compared with the prior art, the double-chain chain pressing device has the advantages that:

[0015] 1. This double-chain pressing device, by setting up an installation motor, a first threaded rod, an installation plate, and an adjustment device, drives the first threaded rod to rotate by starting the installation motor, which indirectly drives the installation plate to move, changing the distance between the two installation plates. This allows the double-chain pressing device to be installed on different models of scraper conveyors for coal mines. The adjustment device can ensure that the pressing gear can be aligned and press down on the scraper chain, thus improving the practicality of the double-chain pressing device.

[0016] 2. This double-chain pressing device, by setting a knob and adjusting the threaded rod, allows the adjusting threaded rod to rotate and descend manually by turning the knob. This indirectly pushes the compression cylinder downward, causing the compression spring to compress. The pressure generated by the compression spring in the opposite direction presses down on the scraper chain. By adjusting the degree of descent, the pressure on the scraper chain can be changed, effectively preventing the device from being ineffective due to too low pressure or damaged by too high pressure. It is quick, convenient, and improves practicality.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of the double-chain pressing device of this utility model;

[0020] Figure 2 This is a top view of the internal structure of the double-chain pressing device of this utility model;

[0021] Figure 3 This is a front view of the internal structure of the double-chain pressing device of this utility model;

[0022] Figure 4 This is a perspective view of the double-chain pressing device of this utility model during installation.

[0023] In the diagram: 1. Fixed plate; 2. Mounting device; 201. First threaded groove; 202. Mounting motor; 203. First threaded rod; 204. First bearing; 205. First threaded block; 206. Mounting plate; 3. Device housing; 4. Adjusting device; 401. Second threaded groove; 402. Adjusting motor; 403. Second threaded rod; 404. Second bearing; 405. Second threaded block; 5. Knob; 6. Adjusting threaded rod; 7. Adjusting threaded groove; 7001. Limiting rod; 8. Connecting rod; 9. Compression cylinder; 10. Compression spring; 11. Pressure plate; 12. Pressure rod; 13. Mounting frame; 14. Pressing chain gear; 15. First slide groove; 16. First slider; 17. Second slide groove; 18. Second slider; 19. Scraper conveyor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with 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 the other embodiments obtained by the ordinary skilled in the art without any creative work belong to the scope of protection of the utility model.

[0025] Please refer to Figures 1-4 The utility model embodiment provides a technical scheme: double chain chain pressing device, including fixed plate 1, scraper 19, the inside of fixed plate 1 is equipped with mounting device 2, and mounting device 2 includes first screw groove 201, installation motor 202, first threaded rod 203, first bearing 204, first screw block 205, mounting plate 206, and the inside of fixed plate 1 is fixedly connected with device housing 3 at the central position, the inside of device housing 3 is equipped with adjusting device 4, and adjusting device 4 includes second screw groove 401, adjusting motor 402, second threaded rod 403, second bearing 404, second screw block 405, by setting installation motor 202, first threaded rod 203, mounting plate 206, adjusting device 4, by starting installation motor 202 indirectly drives mounting plate 206 to move with the rotation of first threaded rod 203, changes the distance between two mounting plates 206, thereby realizes the installation of double chain chain pressing device on different models of coal mine scraper conveyor, and adjusting device 4 can ensure that chain pressing gear 14 can be aligned and pressed into scraper chain, improves the practicability of double chain chain pressing device.

[0026] The upper end inside of device housing 3 is equipped with adjusting screw groove 7, and the inside of adjusting screw groove 7 is threadedly connected with adjusting threaded rod 6, the upper end of adjusting threaded rod 6 is fixedly connected with knob 5, and the lower end of adjusting threaded rod 6 is rotatably connected with connecting rod 8, by setting knob 5, adjusting threaded rod 6, by manually rotating knob 5 drives adjusting threaded rod 6 to rotate and descend, so that adjusting threaded rod 6 indirectly pushes down compression cylinder 9, so that compression spring 10 is compressed, and the pressure generated by compression spring 10 in reverse presses into scraper chain, by adjusting the degree of descent changes the pressure on scraper chain, effectively prevents that too low pressure cannot play a role and too high pressure damages the device, is fast and convenient, and the practicability is improved.

[0027] The inner central position of the first threaded groove 201 is fixedly connected with the mounting motor 202, the two output shafts of the mounting motor 202 are fixedly connected with the first threaded rod 203, the other end of the first threaded rod 203 is fixedly connected with the inner ring of the first bearing 204, the surface of the first threaded rod 203 is threadedly connected with the first threaded block 205, the other end of the first threaded block 205 is fixedly connected with the mounting plate 206, the inner central position of the second threaded groove 401 is fixedly connected with the adjusting motor 402, the two output shafts of the adjusting motor 402 are fixedly connected with the second threaded rod 403, the other end of the second threaded rod 403 is fixedly connected with the inner ring of the second bearing 404, the surface of the second threaded rod 403 is fixedly connected with the inner ring of the second bearing 404, the surface of the second threaded rod 403 is threadedly connected with the second threaded block 405, the outer ring of the first bearing 204 is fixedly connected with the first threaded groove 201, the surface of the first threaded block 205 is slidingly connected with the first threaded groove 201, the outer ring of the second bearing 404 is fixedly connected with the second threaded groove 401, and the surface of the second threaded block 405 is slidingly connected with the second threaded groove 401.

[0028] The lower sides of the adjusting threaded rod 6 are fixedly connected with limit rods 7001, the limit rods 7001 are arranged to limit the rising degree of the adjusting threaded rod 6, and the threaded surface of the adjusting threaded rod 6 is prevented from being separated from the adjusting threaded groove 7, so that the adjusting threaded rod 6 is prevented from being damaged.

[0029] The lower end of the second threaded block 405 is fixedly connected with a compression cylinder 9, the compression cylinder 9 is internally provided with a compression spring 10, the upper end of the compression spring 10 is fixedly connected with the compression cylinder 9, the lower end of the compression spring 10 is fixedly connected with a pressing plate 11, the surface of the pressing plate 11 is slidingly connected with the compression cylinder 9, the lower end of the pressing plate 11 is fixedly connected with a pressing rod 12, the lower end of the pressing rod 12 is fixedly connected with a mounting frame 13, the mounting frame 13 is internally rotatably connected with a pressing chain gear 14, the pressing chain gear 14 is tightly pressed against the scraper chain through the pressure generated by the compression spring 10, and the function of the double-chain pressing chain device is realized to prevent the scraper chain from being separated from the coal mine scraper conveyor.

[0030] The inner portion of the fixed plate 1 is provided with a first sliding groove 15, the first sliding groove 15 is slidingly connected with a first sliding block 16, the other end of the first sliding block 16 is fixedly connected with the mounting plate 206, the movement of the mounting plate 206 is limited through the sliding of the first sliding block 16 in the first sliding groove 15, the left and right shaking of the mounting plate 206 is prevented when the mounting plate 206 moves, and the stability of the mounting plate 206 when moving is improved.

[0031] The second sliding grooves 17 are arranged on both sides of the inside of the device shell 3, the second sliding blocks 18 are slidably connected in the second sliding grooves 17, the other ends of the two second sliding blocks 18 are fixedly connected with the second screw grooves 401, the mounting plates 206 are fixedly connected with the scraper conveyors 19 through bolts, the up-and-down movement of the adjusting device 4 is limited by the sliding of the second sliding blocks 18 in the second sliding grooves 17, the left-and-right shaking of the adjusting device 4 during the up-and-down movement is prevented, and the stability of the adjusting device 4 during the up-and-down movement is improved.

[0032] Working principle: in use, the power is turned on, when the double-chain chain pressing device is installed on different models of coal mine scraper conveyors, firstly, the installation motor 202 is started, the output shaft of the installation motor 202 drives the two first screw rods 203 to rotate, the surface of the first screw rod 203 drives the first screw block 205 to move, the other end of the first screw block 205 drives the mounting plate 206 to move, so that the two mounting plates 206 are close to or away from each other, and the double-chain chain pressing device is installed on different models of coal mine scraper conveyors by adjusting the appropriate distance, then the adjusting motor 402 is started, the output shaft of the adjusting motor 402 drives the two second screw rods 403 to rotate, the surface of the second screw rod 403 drives the second screw block 405 to move, the other end of the second screw block 405 indirectly drives the chain pressing gear 14 to move, the distance between the two chain pressing gears 14 is changed, so that the two chain pressing gears 14 can be aligned and press the scraper chain, and the double-chain chain pressing device is installed on different models of coal mine scraper conveyors through the above process;

[0033] When the appropriate pressure of the double-chain chain pressing device on the scraper chain is adjusted, the knob 5 is manually rotated, the knob 5 drives the adjusting screw rod 6 to rotate and descend, the lower end of the adjusting screw rod 6 drives the connecting rod 8 to descend, the connecting rod 8 drives the adjusting device 4 to descend, indirectly drives the compression cylinder 9 to descend, so that the chain pressing gear 14 descends, when the chain pressing gear 14 begins to press the scraper chain, the compression spring 10 in the compression cylinder 9 is compressed, the appropriate descending degree is adjusted to ensure that the double-chain chain pressing device presses the scraper chain without damaging the device, and the appropriate pressure of the double-chain chain pressing device on the scraper chain is adjusted through the above process.

[0034] The embodiments of the utility model are explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. Double chain chain pressing device, comprising a fixed plate (1), a scraper machine (19), characterized in that, The inside of the fixed plate (1) is internally provided with an installation device (2), the installation device (2) comprises a first threaded groove (201), an installation motor (202), a first threaded rod (203), a first bearing (204), a first threaded block (205), a mounting plate (206), the inside of the fixed plate (1) is fixedly connected with a device shell (3) at the central position, the inside of the device shell (3) is provided with an adjusting device (4), the adjusting device (4) comprises a second threaded groove (401), an adjusting motor (402), a second threaded rod (403), a second bearing (404), a second threaded block (405); The upper end of the device shell (3) is internally provided with an adjusting threaded groove (7), the inside of the adjusting threaded groove (7) is threadedly connected with an adjusting threaded rod (6), the upper end of the adjusting threaded rod (6) is fixedly connected with a knob (5), the lower end of the adjusting threaded rod (6) is rotatably connected with a connecting rod (8).

2. The dual chain chain tensioner of claim 1, wherein: The inside of the first threaded groove (201) is fixedly connected with the installation motor (202) at the central position, the two output shafts of the installation motor (202) are fixedly connected with the first threaded rod (203), the other end of the first threaded rod (203) is fixedly connected with the inner ring of the first bearing (204), the surface of the first threaded rod (203) is threadedly connected with the first threaded block (205), the other end of the first threaded block (205) is fixedly connected with the mounting plate (206), the inside of the second threaded groove (401) is fixedly connected with the adjusting motor (402) at the central position, the two output shafts of the adjusting motor (402) are fixedly connected with the second threaded rod (403), the other end of the second threaded rod (403) is fixedly connected with the inner ring of the second bearing (404), the surface of the second threaded rod (403) is fixedly connected with the inner ring of the second bearing (404), the surface of the second threaded rod (403) is threadedly connected with the second threaded block (405).

3. The dual chain chain tensioner of claim 1, wherein: The outer ring of the first bearing (204) is fixedly connected with the first threaded groove (201), the surface of the first threaded block (205) is slidably connected with the first threaded groove (201), the outer ring of the second bearing (404) is fixedly connected with the second threaded groove (401), the surface of the second threaded block (405) is slidably connected with the second threaded groove (401).

4. The dual chain chain tensioner of claim 1, wherein: The lower sides of the adjusting threaded rod (6) are fixedly connected with limit rods (7001).

5. The dual chain chain tensioner of claim 1, wherein: The lower end of the second threaded block (405) is fixedly connected with a compression cylinder (9), the inside of the compression cylinder (9) is provided with a compression spring (10), the upper end of the compression spring (10) is fixedly connected with the compression cylinder (9), the lower end of the compression spring (10) is fixedly connected with a pressing plate (11), the surface of the pressing plate (11) is slidably connected with the compression cylinder (9), the lower end of the pressing plate (11) is fixedly connected with a pressing rod (12), the lower end of the pressing rod (12) is fixedly connected with a mounting frame (13), the inside of the mounting frame (13) is rotatably connected with a pressing chain gear (14).

6. The dual chain chain tensioner of claim 1, wherein: The inside of the fixed plate (1) is provided with a first sliding groove (15), the inside of the first sliding groove (15) is slidably connected with a first sliding block (16), and the other end of the first sliding block (16) is fixedly connected with a mounting plate (206).

7. The dual chain chain tensioner of claim 1, wherein: The inside of the device shell (3) is provided with a second sliding groove (17) on both sides, the inside of the second sliding groove (17) is slidably connected with a second sliding block (18), and the other end of the two second sliding blocks (18) is fixedly connected with a second screw groove (401).

8. The dual chain chain tensioner of claim 1, wherein: The mounting plate (206) is connected with the scraper (19) through bolts.

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