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CN-121404730-B - Scraper conveyor

CN121404730BCN 121404730 BCN121404730 BCN 121404730BCN-121404730-B

Abstract

The invention belongs to the technical field of conveyors, and particularly relates to a scraper conveyor, which comprises a scraper conveyor body, a turning assembly and a guide rail, wherein the turning assembly is arranged at a turning position of the scraper conveyor body, the turning assembly comprises a guide cover and guide wheels, the guide cover and the guide wheels are annular, the guide wheels are provided with two guide wheels which are coaxially arranged up and down and are rotationally connected with the guide cover, grooves matched with the scraper are formed in the guide wheels, the guide cover is formed by connecting a first cover body and a second cover body, a connecting assembly is arranged between the first cover body and the second cover body, the guide wheels comprise a first guide half wheel and a second guide half wheel, and the circle center angles of the second cover body and the second guide half wheel are the same. By adopting the annular guide wheels and the guide cover to replace the traditional waist-shaped turning structure, a smooth and continuous circular guide track is formed, curvature mutation is fundamentally avoided, and running resistance and abrasion of the scraper chain at the turning position are reduced.

Inventors

  • GUO WENRUI
  • SHANG HONG

Assignees

  • 山西庆春机电设备制造有限公司

Dates

Publication Date
20260512
Application Date
20251120

Claims (7)

  1. 1. The scraper conveyor is characterized by comprising a scraper conveyor body (1), a turning assembly (2) and a guide rail (3), wherein the turning assembly (2) is arranged at a turning position of the scraper conveyor body (1), the turning assembly (2) comprises a guide cover (4) and guide wheels (5), the guide cover (4) and the guide wheels (5) are annular, the guide wheels (5) are provided with two guide wheels (5) which are coaxially arranged up and down and are rotationally connected with the guide cover (4), and grooves (6) matched with the scraper are formed in the guide wheels (5); The guide cover (4) is formed by connecting a first cover body (40) and a second cover body (41), a connecting component (7) is arranged between the first cover body (40) and the second cover body (41), the guide wheel (5) comprises a first guide half wheel (50) and a second guide half wheel (51), and the circle center angle of the second cover body (41) is the same as that of the second guide half wheel (51); The guide rail (3) is formed by connecting two rails (30), the two rails (30) are arranged at intervals and are fixedly connected with the scraper conveyor body (1), the first cover body (40) is fixedly connected with the guide rail (3), the rails (30) are connected with a sliding block (8) in a sliding manner, one end of the second cover body (41) is fixedly connected with the sliding block (8) on the left side rail (30) through a bolt (9), the other end of the second cover body (41) is hinged with the sliding block (8) on the right side rail (30), and the guide rail (3) is connected with a driving assembly (10) for driving the second cover body (41) to move and rotate; the driving assembly (10) comprises two driving cylinders (100), the cylinder bodies of the two driving cylinders (100) are fixedly connected with the guide rail (3), the end parts of piston rods of the two driving cylinders (100) are respectively connected with the second cover body (41) through fixing assemblies, each fixing assembly comprises a fixing lug plate (101), a connecting lug plate (102) and a bolt (103), the fixing lug plates (101) are fixedly connected with the second cover body (41), the connecting lug plates (102) are fixedly connected with the piston rods of the driving cylinders (100), the bolts (103) penetrate through the fixing lug plates (101) to be spliced with the connecting lug plates (102), and after the bolts (103) are spliced with the connecting lugs, the upper end faces of the bolts (103) are higher than the lower end faces of the second cover body (41).
  2. 2. The scraper conveyor according to claim 1, wherein the two guide wheels (5) are connected through transmission gears (11), the transmission gears (11) are at least three, and the transmission gears (11) are rotationally connected with the guide cover (4), and teeth (12) meshed with the transmission gears (11) are arranged on the two guide wheels (5); The semi-annular toothed rails are fixedly connected to a first guide half wheel (50) and a second guide half wheel (51) in the guide wheel (5) at the upper part, and a power assembly connected with the semi-annular toothed rails is arranged on the first guide half wheel (50).
  3. 3. The scraper conveyor according to claim 2, wherein the power assembly comprises a connecting seat (14) and a gear motor (15), the connecting seat (14) is connected with the first cover body (40) through a first lifting cylinder (16), a shell of the gear motor (15) is fixedly connected with the connecting seat (14), and a driving gear (17) meshed with the semi-annular toothed rail is fixedly connected to an output shaft of the gear motor (15).
  4. 4. The scraper conveyor according to claim 1, wherein the connecting assembly (7) comprises a second lifting cylinder (70) and a lifting plate (71), two ends of the second lifting cylinder (70) are fixedly connected with the second cover body (41) and the lifting plate (71) respectively, the first cover body (40) is fixedly connected with a positioning seat (72), and the lifting plate (71) is fixedly connected with a positioning pin (73) spliced with the positioning seat (72).
  5. 5. A scraper conveyor according to claim 4 is characterized in that a limiting pin (74) is fixedly connected to the lifting plate (71), a through hole matched with the limiting pin (74) is formed in the second cover body (41), and the limiting pin (74) can penetrate through the through hole to be in contact with a second guide half wheel (51) in the upper guide wheel (5).
  6. 6. The scraper conveyor according to claim 1, wherein the second cover body (41) is fixedly connected with a connecting link plate (18), and the connecting link plate (18) is connected with the connecting lug plate (102) through a chain (19).
  7. 7. The scraper conveyor according to claim 1, wherein the first guide half wheel (50) and the second guide half wheel (51) are rotatably connected with a first supporting wheel (20) and a second supporting wheel (21), the first supporting wheel (20) is horizontally arranged, the second supporting wheel (21) is vertically arranged, and annular grooves (22) matched with the second supporting wheel (21) are formed in the first cover body (40) and the second cover body (41).

Description

Scraper conveyor Technical Field The invention belongs to the technical field of conveyors, and particularly relates to a scraper conveyor. Background The performance of the scraper conveyor serving as core transportation equipment of the long-wall fully-mechanized coal mining face directly influences the coal mining efficiency and the overall arrangement of the face. In practical application, in order to meet the requirement of continuous pushing of a working face and connection of a roadway, a turning section is often required to be arranged on the scraper conveyor. In the prior art, the scheme for realizing turning of the scraper conveyor mainly has the following problems: A double-chain turning scraper conveyor as disclosed in the reference CN113086517a employs an arc-shaped track provided in a fixed frame and is provided with an auxiliary guide member formed by connecting a plurality of turning assemblies end to end. Although the running resistance is reduced through rolling friction, the whole structure is cashew-shaped, the running resistance is inevitably increased obviously, the abrasion of a chain, a scraping plate and a guiding mechanism is aggravated, and meanwhile, the consumption of driving power and the risk of unstable running are increased. A novel 90 ° curved scraper conveyor as disclosed in the reference CN212531049U adopts the technical scheme of a turntable type turning mechanism. The scheme realizes the guiding through the clamping connection of the grooves on the rotating wheel and the scraping plates, and the rotating disc is usually of an integral disc structure although the scheme can adapt to a medium double-chain structure. This construction, on the one hand, results in a large radial dimension (footprint) of the turning device, which is incompatible with a compact spatial layout downhole and is detrimental to the placement of the support equipment in this area. Disclosure of Invention Aiming at the technical problems, the invention provides the scraper conveyor, and the turning device of the conveyor is of an annular structure and can be opened and closed, so that the arrangement of the supporting device can be facilitated. In order to solve the technical problems, the invention adopts the following technical scheme: the scraper conveyor comprises a scraper conveyor body, a turning assembly and a guide rail, wherein the turning assembly is arranged at a turning position of the scraper conveyor body, the turning assembly comprises a guide cover and guide wheels, the guide cover and the guide wheels are annular, two guide wheels are arranged coaxially and vertically and are in rotary connection with the guide cover, and grooves matched with the scraper are formed in the guide wheels; The guide cover is formed by connecting a first cover body and a second cover body, and a connecting component is arranged between the first cover body and the second cover body; The guide rail is formed by connecting two rails, the two rails are arranged at intervals and are fixedly connected with the scraper conveyor body, the first cover body is fixedly connected with the guide rail, a sliding block is connected onto the rails in a sliding mode, one end of the second cover body is fixedly connected with the sliding block on the left side rail through a bolt, the other end of the second cover body is hinged to the sliding block on the right side rail, and the guide rail is connected with a driving assembly for driving the second cover body to move and rotate. The two guide wheels are connected through transmission gears, and the transmission gears are at least three and are rotationally connected with the guide cover; Semi-annular toothed rails are fixedly connected to a first guide half wheel and a second guide half wheel in the upper guide wheel, and a power assembly connected with the semi-annular toothed rails is arranged on the first guide half wheel. The power assembly comprises a connecting seat and a gear motor, the connecting seat is connected with the first cover body through a first lifting cylinder, a shell of the gear motor is fixedly connected with the connecting seat, and a driving gear meshed with the semi-annular toothed rail is fixedly connected to an output shaft of the gear motor. The connecting assembly comprises a second lifting cylinder and a lifting plate, wherein two ends of the second lifting cylinder are respectively and fixedly connected with the second cover body and the lifting plate, the first cover body is fixedly connected with a positioning seat, and the lifting plate is fixedly connected with a positioning pin which is spliced with the positioning seat. The second cover body is provided with a through hole matched with the limiting pin, and the limiting pin can pass through the through hole to be contacted with a second guide half wheel in the guide wheel positioned at the upper part. The driving assembly comprises two driving cylinders, the cylinder bodies of the