Chain falling prevention structure of scraper and scraper

Abstract

The chain separation prevention structure of the scraper comprises a groove body and a scraper assembly, a containing groove is formed in the groove body, and driving rollers are arranged at the two ends of the groove body correspondingly; the scraper assembly comprises a driving chain and a plurality of scrapers arranged on the driving chain, at least one auxiliary roller is arranged between the driving rollers and used for supporting the scraper assembly, each auxiliary roller comprises a supporting shaft and a plurality of guide wheels arranged on the supporting shaft, the diameter of the portion, close to the inner side, of each guide wheel is larger than the diameter of the outer side of each guide wheel, and each auxiliary roller is used for supporting the scraper assembly. A guide part is formed on the surface of the guide wheel, and the driving chain slides between the guide wheel and the groove body; the guide wheel can support the driving chain, reduce abrasion of the driving chain, prolong the service life of the driving chain, prevent the driving chain from being separated from the guide wheel and increase the risk that the driving chain is separated from the driving wheel.

Description

Technical Field

[0001] The present application relates to the technical field of scraper machines, and in particular to a scraper machine anti-chain derailment structure and a scraper machine. Background Art

[0002] The overall length of the scraper is relatively long, so its drive chain is also relatively long. Under the action of the drive chain's own gravity, the chain will fall downward in the middle part, so a plurality of guide wheels are provided in the middle part of the scraper to support the drive chain. In the prior art, the guide wheel surface used is flat, and the chain is easy to detach from the guide wheel surface, so that the drive chain and the drive wheel are not in the same plane, which can easily cause the drive chain to detach from the drive wheel, jam the drive chain and break it, thereby affecting the normal operation of the scraper. Utility Model Content

[0003] The present application provides a chain-off prevention structure for a scraper to solve the problem that the drive chain is easily detached from the guide wheel, thus affecting the normal operation of the scraper. The following technical solutions are adopted:

[0004] The anti-chain-off structure of a scraper conveyor comprises a trough body and a scraper assembly, wherein the trough body is provided with a receiving groove, and drive rollers are respectively provided at both ends of the trough body; the scraper assembly comprises a drive chain and a plurality of scrapers arranged on the drive chain, and at least one auxiliary roller is provided between the drive rollers for supporting the scraper assembly, and the auxiliary roller comprises a support shaft and a plurality of guide wheels arranged on the support shaft, wherein the inner diameter of the guide wheel is larger than the outer diameter, and a guide portion is formed on the surface of the guide wheel, and the drive chain slides between the guide wheel and the trough body.

[0005] Preferably, a baffle for preventing the drive chain from contacting the trough body is provided on one side of the guide wheel close to the trough body.

[0006] Preferably, the driving roller comprises a driving shaft and a plurality of driving wheels, the driving roller is rotationally connected to the trough body, the driving wheel is arranged on the driving shaft, and the driving chain is sleeved on the driving wheel.

[0007] Further preferably, a driving groove is provided on the surface of the driving wheel, and the driving groove is adapted to the driving chain.

[0008] Further preferably, the guide wheels are rotatably connected to the support shaft, and the number of the guide wheels on the support shaft corresponds to the number of the driving wheels on the driving shaft.

[0009] Preferably, the drive chain comprises a first chain ring and a second chain ring, and a second chain ring is provided between two adjacent first chain rings.

[0010] Preferably, the guide portion is arc-shaped or slope-shaped.

[0011] Preferably, the trough body includes a bottom plate and support plates arranged on both sides of the bottom plate.

[0012] The present application also discloses a scraper, comprising the above-mentioned scraper anti-chain derailment structure and a driving device, wherein the driving device is arranged on the trough body and is transmission-connected to one of the driving rollers.

[0013] The beneficial effects of this application are:

[0014] (1) The inner diameter of the guide wheel is larger than its outer diameter, so that the surface of the guide wheel forms a guide part to prevent the drive chain from falling off the surface of the guide wheel and preventing the drive chain from being pulled apart after being stuck. The drive chain moves along the guide part, reducing the number of replacement and maintenance times.

[0015] (2) A baffle is provided on the outer side of the guide wheel and is rotatably connected to the support shaft, which can prevent friction between the drive chain and the trough body and reduce wear on the drive chain.

[0016] (3) When the scraper is working, prevent the drive chain from detaching from the guide wheel, which will affect the normal operation of the scraper, improve the operating stability and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top view of the present application;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of part of this application;

[0019] Figure 3 It is a schematic diagram of the guide wheel structure of this application.

[0020] In the figure:

[0021] 1. trough body, 2. driving roller, 21. driving shaft, 22. driving wheel, 221. driving trough, 3. scraper assembly, 31. scraper, 32. driving chain, 321. first chain link, 322. second chain link, 4. auxiliary roller, 41. supporting shaft, 42. guide wheel, 421. guiding part, 5. baffle, 100. receiving trough. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in the present application are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0023] See also Figures 1 to 3, further illustrating the present application, the anti-chain-off structure of the scraper conveyor comprises a trough body 1 and a scraper assembly 3, wherein the trough body 1 is provided with a receiving trough 100, and the trough body 1 comprises a bottom plate and support plates arranged on both sides of the bottom plate;

[0024] The two ends of the trough body 1 are respectively provided with driving rollers 2; the scraper 31 assembly 3 includes a driving chain 32 and a plurality of scrapers 31 arranged on the driving chain 32, at least one auxiliary roller 4 is arranged between the driving rollers 2 for supporting the scraper assembly 3, the auxiliary roller 4 includes a support shaft 41 and a plurality of guide wheels 42 arranged on the support shaft 41, the guide wheel 42 has a diameter closer to the inner side than the outer side, a guide portion 421 is formed on the surface of the guide wheel 42, and the driving chain 32 slides between the guide wheel 42 and the trough body 1.

[0025] When the driving roller 2 drives the driving chain 32 to rotate, the driving chain 32 will slide along the guiding portion 421 between the trough body 1 and the guiding wheel 42, wherein the guiding portion 421 may be sloped or arc-shaped to prevent the driving chain 32 from detaching from the guiding wheel 42 and falling to the inner side of the guiding wheel 42.

[0026] Combination Figure 1 and Figure 3 In order to reduce the friction between the drive chain 32 and the trough body 1, the guide wheel 42 is further provided with a baffle 5 on the side close to the trough body 1 (outer side of the guide wheel 42) for blocking the drive chain 32 from contacting the trough body 1. The guide wheel 42 is rotatably connected to the support shaft 41. When working, the guide wheel 42 can rotate to reduce the friction between the drive chain 32 and the drive wheel 22, thereby reducing the wear of the drive chain 32. In some embodiments, the support shaft 41 can also be rotatably connected to both sides of the trough body 1.

[0027] The driving roller 2 includes a driving shaft 21 and a driving wheel 22. The driving roller 2 is rotatably connected to the trough body 1. The driving wheel 22 is arranged on the driving shaft 21, and the driving chain 32 is sleeved on the driving wheel 22. The number of the driving wheels 22 on the driving shaft 21 corresponds to the number of the guide wheels 42 on the support shaft 41. In this embodiment, there are two driving wheels 22, two guide wheels 42 and two driving chains 32.

[0028] Combination Figure 2 and Figure 3The drive chain 32 includes a first chain link 321 and a second chain link 322, and a second chain link 322 is provided between two adjacent first chain links 321 to form a ring-shaped drive chain 32; a drive groove 221 is provided on the surface of the drive wheel 22, and the drive groove 221 is adapted to the drive chain 32. When the scraper is working, the drive chain 32 is stuck in the drive groove 221, so that the drive wheel 22 drives the drive chain 32 to work.

[0029] The present application also discloses a scraper, comprising the above-mentioned scraper anti-chain debonding structure and a driving device (not shown), wherein the driving device is arranged on the trough body 1 and is transmission-connected to one of the driving rollers 2, and is used to drive the scraper assembly; when the scraper is working, the driving device drives the driving shaft 21 to drive the driving wheel 22, and the driving wheel 22 drives the driving chain 32 to drive the scraper 31 to transport the material in the containing trough 100, and the driving chain 32 is not easy to separate from the guide wheel 42, which can ensure the working stability of the scraper and reduce the maintenance cost; wherein, one end of the driving shaft 21 extends out of one side of the trough body 1 and is transmission-connected to the driving device. In this embodiment, a pulley is provided on the end extending out of the trough body 1, and the driving device drives the pulley through a transmission belt to drive the driving shaft 21 to rotate.

Claims

1. The anti-chain-off structure of the scraper conveyor is characterized by: It includes a trough body and a scraper assembly, wherein the trough body is provided with a receiving groove, and driving rollers are respectively provided at both ends of the trough body; the scraper assembly includes a driving chain and a plurality of scrapers arranged on the driving chain, at least one auxiliary roller is provided between the driving rollers for supporting the scraper assembly, the auxiliary roller includes a supporting shaft and a plurality of guide wheels arranged on the supporting shaft, the guide wheel has a larger diameter near the inner side than the outer side, a guiding part is formed on the surface of the guide wheel, and the driving chain slides between the guide wheel and the trough body.

2. The anti-chain-off structure of a scraper conveyor according to claim 1, characterized in that: The guide wheel is also provided with a baffle plate on one side close to the trough body for preventing the drive chain from contacting the trough body.

3. The anti-chain-off structure of a scraper conveyor according to claim 1 is characterized in that: The driving roller comprises a driving shaft and a plurality of driving wheels. The driving roller is rotatably connected to the trough body. The driving wheel is arranged on the driving shaft, and the driving chain is sleeved on the driving wheel.

4. The anti-chain-off structure of a scraper conveyor according to claim 3 is characterized in that: A driving groove is provided on the surface of the driving wheel, and the driving groove is adapted to the driving chain.

5. The anti-chain-off structure of a scraper conveyor according to claim 3 is characterized in that: The guide wheels are rotatably connected to the support shaft, and the number of the guide wheels on the support shaft corresponds to the number of the driving wheels on the driving shaft.

6. The anti-chain-off structure of a scraper conveyor according to claim 1, characterized in that: The drive chain comprises a first chain ring and a second chain ring, and the second chain ring is provided between two adjacent first chain rings.

7. The anti-chain-off structure of a scraper conveyor according to claim 1, characterized in that: The guide portion is in an arc shape or a slope shape.

8. The anti-chain-off structure of a scraper conveyor according to claim 1, characterized in that: The tank body comprises a bottom plate and support plates arranged on both sides of the bottom plate.

9. Scraper, characterized in that: It comprises the anti-chain debonding structure and driving device of the scraper conveyor as described in any one of claims 1 to 8, wherein the driving device is arranged on the trough body and is drivingly connected to one of the driving rollers.

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