Chain tightening device for scraper

Abstract

The utility model discloses a chain tensioning device for a scraper, which belongs to the technical field of scrapers and comprises a frame, the frame is slidably connected with a mounting shaft bracket through grooves arranged on two sides of the frame, chain tensioning components are arranged on two sides of the frame, and a mounting shaft is slidably connected with a first pin shaft through a through hole arranged in the mounting shaft. According to the chain tensioning device, the telescopic oil cylinder is arranged in the chain tensioning device, when the chain of the scraper is loosened in the using process, the telescopic oil cylinder is started to drive the installation shaft to move and drive the chain wheel module to move so that the position of the chain wheel module can be changed, and therefore the tensioning of the chain can be adjusted; when the chain is loosened in the using process of the scraper, the tightness of the chain can be adjusted without cutting off several sections of a chain ring or adopting a chain tightening mode that a tail groove body stretches out and draws back, and therefore the tightness of the chain can be rapidly adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of chain tightening devices, in particular to a chain tightening device for a scraper machine. Background Art

[0002] The scraper conveyor chain tightening device is mainly suitable for scraper conveyors in coal mines. At present, the scraper conveyors used in coal mines will have the chain become longer and loose after running for a certain period of time, thereby affecting the transmission of the conveyor. Even when the chain is too loose, it is easy to fall off the sprocket and affect the transportation of the conveyor, thereby affecting the mining of the coal mine.

[0003] The traditional chain tightening method is to cut off several links of the chain or use the tail trough to tighten the chain. It is difficult to adjust the chain, so it takes a certain amount of time to adjust, which leads to a waste of time and reduced efficiency. In addition, during the long-term use of the chain, due to the large amount of dust and coal slag in the coal mine environment, some dust and coal will fall on the surface and gaps of the chain, thereby affecting the use of the chain. In order to solve the above problems, a chain tightening device for a scraper is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to solve the problem that the traditional chain tightening method is to cut off several links of the chain link or adopt the chain tightening method of telescoping the tail trough body, and it is difficult to adjust the chain, so it takes a certain amount of time to adjust, resulting in a waste of time and reduced efficiency. In addition, during the long-term use of the chain, due to the large amount of dust and coal slag in the coal mine environment, some dust and coal will fall on the surface and gaps of the chain, thereby affecting the use of the chain. A chain tightening device for a scraper is proposed.

[0005] The cam is fixedly mounted on a support frame, and the cam is fixedly mounted on a support frame, and the cam is installed in a forward direction of the support frame, and the cam is installed in a forward direction of the support frame.

[0006] As a further description of the above technical solution:

[0007] The second pin is slidably connected to the positioning block through a through hole provided in the positioning block, and the positioning block is provided with a plurality of through holes. One side of the first mounting bracket is fixedly connected to the frame.

[0008] As a further description of the above technical solution:

[0009] A first baffle is provided on one side of the first mounting frame, and the second pin shaft is slidably connected to the first baffle through a through hole provided in the fixing plate, and the fixing plate is provided with a plurality of through holes.

[0010] As a further description of the above technical solution:

[0011] A cleaning assembly is provided at the bottom end of the mounting shaft frame, and the cleaning assembly includes a material receiving trough, a mounting rod is fixedly connected to the top surface of the material receiving trough, and the mounting rod is slidably connected to the second mounting frame through a groove opened on the top surface, and the second mounting frame is rotatably connected to the first cleaning roller through the groove opened therein, and a second spring is fixedly connected to one side of the second mounting frame.

[0012] As a further description of the above technical solution:

[0013] The mounting rod is rotatably connected to the second cleaning roller through a groove opened on its top surface, the top surface of the mounting rod is fixedly connected to the second baffle, the other end of the second spring is fixedly connected to the second baffle, the material receiving trough is slidably connected to the connecting rod through a groove opened therein, and a handle is fixedly connected to one side of the material receiving trough.

[0014] As a further description of the above technical solution:

[0015] The handle is slidably connected to a sliding rod through a groove opened therein, one end of the sliding rod is fixedly connected to a first spring, the sliding rod is slidably connected to the material receiving trough through a through hole opened on one side of the material receiving trough, the sliding rod is slidably connected to the connecting rod through a groove opened on one side of the connecting rod, the top end of the connecting rod is fixedly connected to the bottom end of the mounting shaft frame, and a brush is fixedly connected in the material receiving trough.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. In the utility model, a telescopic oil cylinder is provided inside. When the chain of the scraper is loose during use, the telescopic oil cylinder is started to drive the mounting shaft to move and drive the sprocket module to move to change its position, thereby adjusting the tension of the chain. Through this design, when the chain is loose during use of the scraper, the tension of the chain can be adjusted without cutting off several sections of the chain ring or using the chain tightening method of telescoping the tail trough body, thereby quickly adjusting the tension of the chain.

[0018] 2. In the utility model, a first cleaning roller is provided inside. When there is dust on the surface of the chain that needs to be cleaned, the sliding rod is moved to separate it from the connecting rod, thereby moving the material receiving trough upward to a suitable position, and allowing the chain to fall between the first cleaning roller and the second cleaning roller, thereby cleaning the chain. Through this design, the chain is cleaned, thereby avoiding the impact of excessive dust on the chain surface on the operation of the scraper, and the gaps in the chain can be cleaned by a brush to avoid the impact on the chain, thereby affecting the use of the scraper and affecting the transportation of the coal mine, thereby ensuring the use of the scraper by cleaning the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a chain tightening device for a scraper conveyor.

[0020] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of a chain tightening device for a scraper conveyor.

[0021] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of a chain tightening assembly in a chain tightening device for a scraper conveyor.

[0022] Figure 4 This is a schematic diagram of the exploded three-dimensional structure of a cleaning component in a chain tightening device for a scraper.

[0023] Legend:

[0024] 1. Frame; 2. Sprocket module; 3. Chain tightening assembly; 31. First mounting bracket; 32. Fixed plate; 33. Second pin; 34. Positioning block; 35. First baffle; 36. Third pin; 37. Telescopic cylinder; 38. Articulated seat; 4. Mounting shaft bracket; 5. Mounting shaft; 6. First pin; 7. Cleaning assembly; 71. Brush; 72. Connecting rod; 73. Sliding rod; 74. First spring; 75. Handle; 76. Material receiving trough; 77. Mounting rod; 78. Second baffle; 79. Second spring; 710. Second mounting bracket; 711. First cleaning roller; 712. Second cleaning roller. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-4 The utility model provides a technical solution: a chain tightening device for a scraper, comprising a frame 1, wherein the frame 1 is slidably connected to a mounting shaft frame 4 through grooves opened on both sides thereof, the mounting shaft frame 4 is slidably connected to a mounting shaft 5 through a groove opened therein, the outer wall of the mounting shaft 5 is provided with a sprocket module 2, a chain tightening assembly 3 is provided on both sides of the frame 1, the mounting shaft 5 is slidably connected to a first pin shaft 6 through a through hole opened therein; the chain tightening assembly 3 includes a first mounting frame 31, and one side of the first mounting frame 31 is fixedly connected to a fixing plate 32 One side of the first mounting bracket 31 is fixedly connected to a hinged seat 38, and one side of the hinged seat 38 is hinged to a telescopic cylinder 37. The output shaft of the telescopic cylinder 37 is provided with a through hole and a third pin shaft 36 is slidably connected therein. The outer wall of the third pin shaft 36 is rotatably connected to a positioning block 34, and the positioning block 34 is slidably connected to the mounting shaft 5 through a groove provided at one end thereof. The first pin shaft 6 is rotatably connected to the positioning block 34 through a through hole provided in the positioning block 34, and the first mounting bracket 31 is slidably connected to the second pin shaft 33 through a through hole provided therein.

[0027] The second pin shaft 33 is slidably connected to the positioning block 34 through a through hole formed in the positioning block 34, and the positioning block 34 has multiple through holes formed therein. One side of the first mounting bracket 31 is fixedly connected to the frame 1. A first baffle 35 is provided on one side of the first mounting bracket 31. The second pin shaft 33 is slidably connected to the fixing plate 32 through a through hole formed in the fixing plate 32, and the fixing plate has multiple through holes formed therein.

[0028] The specific implementation method is as follows: when in use, the positioning block 34 is connected to the mounting shaft 5 through the first pin shaft 6. When the chain of the scraper is loose during use, the second pin shaft 33 is removed from the positioning block 34, thereby starting the telescopic cylinder 37 to drive the positioning block 34 to move, thereby driving the mounting shaft 5 to move and driving the sprocket module 2 to move and change its position, thereby adjusting the tension of the chain. When adjusted to the appropriate position, the second pin shaft 33 is reinserted into the through hole opened by the first mounting frame 31 and the positioning block 34 to fix it.

[0029] The bottom end of the mounting shaft frame 4 is provided with a cleaning assembly 7, and the cleaning assembly 7 includes a material receiving groove 76, and the top surface of the material receiving groove 76 is fixedly connected to a mounting rod 77, and the mounting rod 77 is slidably connected to a second mounting frame 710 through a groove opened on the top surface, and the second mounting frame 710 is rotatably connected to a first cleaning roller 711 through a groove opened therein, and a second spring 79 is fixedly connected to one side of the second mounting frame 710, and the mounting rod 77 is rotatably connected to a second cleaning roller 712 through a groove opened on its top surface, and the top surface of the mounting rod 77 is fixedly connected to a second baffle 78, and the second spring 79 is also fixedly connected to the second baffle 78. One end is fixedly connected to the second baffle 78, and the material receiving trough 76 is slidably connected to the connecting rod 72 through the groove opened therein. The material receiving trough 76 is fixedly connected to a handle 75 on one side of the material receiving trough, and the handle 75 is slidably connected to the slide bar 73 through the groove opened therein. One end of the slide bar 73 is fixedly connected to the first spring 74, and the slide bar 73 is slidably connected to it through the through hole opened on one side of the material receiving trough 76. The slide bar 73 is slidably connected to it through the groove opened on one side of the connecting rod 72. The top end of the connecting rod 72 is fixedly connected to the bottom end of the mounting shaft frame 4, and a brush 71 is fixedly connected to the material receiving trough 76.

[0030] The specific implementation method is as follows: when there is dust on the chain surface that needs to be cleaned, move the sliding rod 73 to separate it from the connecting rod 72, thereby moving the material receiving trough 76 upward to a suitable position, and allowing the chain to fall between the first cleaning roller 711 and the second cleaning roller 712, and allowing the brush 71 to contact the chain. At the same time, the second mounting bracket 710 is driven to move by the second spring 79, so that the first cleaning roller 711 is in close contact with the chain, thereby cleaning the chain surface through it, and at the same time, the dust and coal slag cleaned by it fall into the material receiving trough 76, and at the same time, the gaps in the chain are cleaned by the brush 71, so that the coal slag fallen in the gaps in the chain is cleaned out, thereby avoiding its influence on the transmission process.

[0031] Working principle: When in use, the positioning block 34 is connected to the mounting shaft 5 through the first pin shaft 6. When the chain of the scraper is loose during use, the second pin shaft 33 is removed from the positioning block 34, thereby starting the telescopic cylinder 37 to drive the positioning block 34 to move, thereby driving the mounting shaft 5 to move and driving the sprocket module 2 to move to change its position, thereby adjusting the tension of the chain. When it is adjusted to the appropriate position, the second pin shaft 33 is reinserted into the through hole opened by the first mounting bracket 31 and the positioning block 34 to fix it. When there is dust on the surface of the chain that needs to be cleaned, move the slide bar 7 3, thereby separating it from the connecting rod 72 and moving the receiving trough 76 upward to a suitable position, and causing the chain to fall between the first cleaning roller 711 and the second cleaning roller 712, and causing the brush 71 to contact the chain. At the same time, the second spring 79 drives the second mounting frame 710 to move, so that the first cleaning roller 711 is in close contact with the chain, thereby cleaning the surface of the chain. At the same time, the dust and coal slag cleaned by it fall into the receiving trough 76, and the brush 71 cleans the gap of the chain, thereby cleaning out the coal slag dropped in the gap of the chain, thereby preventing it from affecting the transmission process.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A chain tightening device for a scraper, comprising a frame (1), characterized in that: The frame (1) is slidably connected to a mounting shaft frame (4) through grooves provided on both sides thereof, the mounting shaft frame (4) is slidably connected to a mounting shaft (5) through grooves provided therein, the outer wall of the mounting shaft (5) is provided with a sprocket module (2), and a tightening chain assembly (3) is provided on both sides of the frame (1), the mounting shaft (5) is slidably connected to a first pin shaft (6) through a through hole provided therein; the tightening chain assembly (3) comprises a first mounting frame (31), one side of the first mounting frame (31) is fixedly connected to a fixing plate (32), and one side of the first mounting frame (31) is fixed A hinge seat (38) is connected, and a telescopic oil cylinder (37) is hingedly connected to one side of the hinge seat (38). The output shaft of the telescopic oil cylinder (37) is provided with a through hole and a third pin shaft (36) is slidably connected therein. The outer wall of the third pin shaft (36) is rotatably connected to a positioning block (34). The positioning block (34) is slidably connected to the mounting shaft (5) through a groove provided at one end thereof. The first pin shaft (6) is rotatably connected to the positioning block (34) through a through hole provided in the positioning block. The first mounting frame (31) is slidably connected to the second pin shaft (33) through a through hole provided therein.

2. A chain tightening device for a scraper according to claim 1, characterized in that: The second pin shaft (33) is slidably connected to the positioning block (34) through a through hole provided in the positioning block (34), and the positioning block (34) is provided with a plurality of through holes. One side of the first mounting frame (31) is fixedly connected to the frame (1).

3. A chain tightening device for a scraper according to claim 2, characterized in that: A first baffle (35) is provided on one side of the first mounting frame (31), and the second pin shaft (33) is slidably connected to the first baffle (35) via a through hole provided in the fixing plate (32), and the fixing plate (32) is provided with a plurality of through holes.

4. A chain tightening device for a scraper according to claim 3, characterized in that: A cleaning assembly (7) is provided at the bottom end of the mounting shaft frame (4), and the cleaning assembly (7) includes a material receiving trough (76), a mounting rod (77) is fixedly connected to the top surface of the material receiving trough (76), and the mounting rod (77) is slidably connected to a second mounting frame (710) through a groove opened on the top surface, and the second mounting frame (710) is rotatably connected to a first cleaning roller (711) through a groove opened therein, and a second spring (79) is fixedly connected to one side of the second mounting frame (710).

5. A chain tightening device for a scraper according to claim 4, characterized in that: The mounting rod (77) is rotatably connected to the second cleaning roller (712) through a groove provided on its top surface; the top surface of the mounting rod (77) is fixedly connected to the second baffle (78); the other end of the second spring (79) is fixedly connected to the second baffle (78); the material receiving trough (76) is slidably connected to the connecting rod (72) through a groove provided therein; and a handle (75) is fixedly connected to one side of the material receiving trough (76).

6. A chain tightening device for a scraper according to claim 5, characterized in that: The handle (75) is slidably connected to a slide rod (73) through a groove provided therein, one end of the slide rod (73) is fixedly connected to a first spring (74), the slide rod (73) is slidably connected to the material receiving groove (76) through a through hole provided on one side thereof, the slide rod (73) is slidably connected to the connecting rod (72) through a groove provided on one side thereof, the top end of the connecting rod (72) is fixedly connected to the bottom end of the mounting shaft frame (4), and a brush (71) is fixedly connected to the material receiving groove (76).

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