Belt conveyor carrier roller scraper tensioning device

Abstract

The utility model discloses a tensioning device for a carrier roller scraper of a belt conveyor, which relates to the technical field of belt conveyors and comprises a support plate, a connecting rod, a spring and a scraper support. The supporting plate is fixedly installed, and the scraper is fixedly installed on the scraper support. The front end of the connecting rod is fixedly mounted with the support plate, and the rear end is slidably mounted and connected with the scraper bracket; the spring is located between the supporting plate and the scraper support and arranged on the connecting rod in a sleeving mode, and elasticity of the spring enables the scraper to abut against the carrier roller. Under the synergistic effect of the sliding pair between the scraper support and the connecting rod and the spring, the scraper blade abrasion generated in the working process of the scraper is subjected to compensatory feeding, and the scraper blade abrasion compensation device has an adaptive compensation effect on proper installation errors, so that the scraper blade always abuts against a carrier roller; cleaning failure and carrier roller scale deposition caused by abrasion of the scraper blade are avoided, then deviation of the conveying belt is avoided, normal work of the conveying belt is guaranteed, and poor contact between the scraper blade and the carrier roller caused by installation errors is avoided.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and specifically to a device for idler rollers in a tensioned belt conveyor. Background Technology

[0002] Idler structures are widely used in belt conveyors. Located below the conveyor belt, they rotate continuously as the belt runs, primarily to tension the belt and ensure its smooth operation.

[0003] The idler roller structure includes a roller body, bearings, and a scraper device. The cylindrical roller body is mounted between the side plates of the belt conveyor by bearings and bolts. The scraper bracket of the scraper device is the same length as the roller body and is fixed between the side plates of the belt conveyor by bolts. Its scraper blade is in close contact with the roller surface to remove the dirt adhering to the surface of the idler roller.

[0004] After long-term operation of a belt conveyor, the close contact and friction between the idler roller and the scraper blade will cause wear on the blade edge, reducing its width. This creates a gap between the blade edge and the idler roller surface, rendering the scraper ineffective at cleaning the roller. In this case, maintenance personnel need to manually adjust the scraper bracket to ensure the blade edge is firmly against the roller surface again. If not adjusted promptly, a large amount of dirt will accumulate on the idler roller surface, causing conveyor belt misalignment and disrupting normal production. Therefore, the inspection and adjustment of the idler rollers are frequent, resulting in a heavy workload for the staff. Utility Model Content

[0005] This invention aims to overcome the shortcomings of the prior art by providing a belt conveyor idler roller scraper tensioning device.

[0006] The present invention adopts the following technical solution to solve the technical problem: a belt conveyor idler roller scraper tensioning device, wherein the top or bottom edge of the scraper is attached to the outer edge of the idler roller along its entire length, including a support plate, a connecting rod, a spring and a scraper bracket;

[0007] The support plate is fixedly installed as a frame, and the scraper is fixedly installed on the scraper bracket;

[0008] The front end of the connecting rod is fixedly installed to the support plate, and the rear end is slidably connected to the scraper bracket; a sliding pair is formed between the scraper bracket and the connecting rod to support the scraper to move closer to or away from the roller along the generatrix perpendicular to the roller.

[0009] The spring is located between the support plate and the scraper bracket, and is sleeved on the connecting rod. Its elasticity causes the scraper to press against the idler roller.

[0010] Furthermore, the rear end of the connecting rod is connected to the scraper bracket via a rear end connecting plate.

[0011] Furthermore, the rear connecting plate is an L-shaped plate structure formed by bending the front and rear parts at the junction, and its rear end is fixedly connected to the scraper bracket.

[0012] The rear end of the connecting rod passes through the front part of the rear end connecting plate and is slidably connected to the rear end connecting plate.

[0013] Furthermore, it also includes the rear nut;

[0014] The rear part of the connecting rod has a screw structure, and the rear end nut is fastened to the rear end of the connecting rod by the rear thread engagement of the rear end connecting plate.

[0015] Furthermore, the front end of the connecting rod is detachably connected to the support plate via a front connecting plate.

[0016] Furthermore, the front connecting plate is an L-shaped plate structure formed by bending the front and rear parts at the junction. Its front part is detachably connected to the support plate, and its rear part is fixedly connected to the front end of the connecting rod.

[0017] Furthermore, the front part of the front connecting plate is detachably connected to the support plate via a threaded connector.

[0018] Furthermore, the scraper is detachably connected to the scraper bracket via a threaded connector.

[0019] Furthermore, the support plate, connecting rod, spring, and scraper bracket are arranged symmetrically in pairs.

[0020] This utility model provides a tensioning device for scraper blades on belt conveyor idlers, which has the following advantages:

[0021] 1. This utility model compensates for the wear of the scraper blade during operation by using the sliding pair between the scraper bracket and the connecting rod, as well as the spring, to ensure that the scraper blade is always pressed against the idler roller. This avoids cleaning failure and dirt accumulation on the idler roller caused by scraper blade wear, thereby preventing the conveyor belt from running off-track and ensuring the normal operation of the conveyor belt.

[0022] 2. The sliding pair between the scraper bracket and the connecting rod, as well as the synergistic effect of the spring, also have an adaptive compensation effect for appropriate installation errors, avoiding poor contact between the scraper blade and the idler roller caused by installation errors.

[0023] 3. This utility model has a simple structure and low modification cost. It does not require manual adjustment of the installation gap, which greatly reduces the daily maintenance frequency of the idler roller structure and is conducive to improving production efficiency. Attached Figure Description

[0024] Figure 1It is a structural diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the right-side structure of this utility model.

[0027] In the picture:

[0028] 1. Idler roller, 2. Scraper, 3. Scraper bracket, 4. Rear end connecting plate, 5. Connecting rod, 6. Spring, 7. Support plate, 8. Front end connecting plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] A belt conveyor idler roller scraper tensioning device, such as Figures 1-3 As shown, its structural relationship is as follows: the top or bottom edge of the scraper 2 is attached to the outer edge of the roller 1 along its entire length, including the support plate 7, the connecting rod 5, the spring 6 and the scraper bracket 3;

[0031] The support plate 7 is fixedly installed as a frame, and the scraper 2 is installed and fixed on the scraper bracket 3;

[0032] The front end of the connecting rod 5 is fixed to the support plate 7, and the rear end is slidably connected to the scraper bracket 3; a sliding pair is formed between the scraper bracket 3 and the connecting rod 5 to support the scraper 2 to move closer to or away from the roller 1 along the generatrix perpendicular to the roller 1.

[0033] Spring 6 is located between support plate 7 and scraper bracket 3, and is sleeved on connecting rod 5. Its elasticity causes scraper 2 to press against idler roller 1.

[0034] Preferably, the rear end of the connecting rod 5 is connected to the scraper bracket 3 via the rear end connecting plate 4.

[0035] Preferably, the rear connecting plate 4 is an L-shaped plate structure formed by bending the front and rear parts at the junction, and its rear end is fixedly connected to the scraper bracket 3.

[0036] In actual installation, the rear end of the rear connecting plate 4 is preferably welded and fixed to the scraper bracket 3;

[0037] The rear end of the connecting rod 5 passes through the front part of the rear end connecting plate 4 and is slidably connected to the rear end connecting plate 4.

[0038] Preferably, it also includes a rear end nut;

[0039] The rear part of the connecting rod 5 has a screw structure, and the rear nut is fastened to the rear end of the connecting rod 5 by the rear thread engagement of the rear connecting plate 4.

[0040] The rear nut limits the rear connecting plate 4 and spring 6, preventing them from slipping off the rear end of the connecting rod 5.

[0041] Preferably, the front end of the connecting rod 5 is detachably connected to the support plate 7 via the front connecting plate 8.

[0042] Preferably, the front connecting plate 8 is an L-shaped plate structure formed by bending the front and rear parts at the junction. Its front part is detachably connected to the support plate 7, and its rear part is fixedly connected to the front end of the connecting rod 5.

[0043] Preferably, the front part of the front connecting plate 8 is detachably connected to the support plate 7 via a threaded connector.

[0044] Preferably, the scraper 2 is detachably connected to the scraper bracket 3 via a threaded connector.

[0045] Preferably, the support plate 7, connecting rod 5, spring 6 and scraper bracket 3 are arranged symmetrically in pairs.

[0046] The installation and use of the above-mentioned belt conveyor idler roller scraper tensioning device includes the following process:

[0047] First, the front parts of the pair of front connecting plates 8 are respectively fitted onto the pair of connecting rods 5 from the rear end. Then, the pair of rear nuts are respectively threaded onto the screw structure at the rear end of the pair of connecting rods 5, so that the pair of rear nuts abut against the pair of front connecting plates 8 and the pair of springs 6 are in a compressed state.

[0048] The second step is to install and fix the scraper 2 to the scraper bracket 3 using a threaded connector.

[0049] The third step is to install and fix the front parts of a pair of front connecting plates 8 to a pair of support plates 7 that are fixed to a frame, wall or ground through threaded connectors, so that the scraper 2 is facing the idler roller 1.

[0050] Fourth step: Loosen a pair of rear end nuts in turn, so that the blade of scraper 2 gradually moves closer to the outer edge of idler roller 1, until the blade of scraper 2 presses against the outer edge of idler roller 1, and then continue to loosen a pair of rear end nuts a certain distance backward.

[0051] Fifth step: During the operation of the conveyor belt, the elastic force of the spring 6 is transmitted to the scraper 2 through the rear connecting plate 4 and the scraper support plate 3, so that the cutting edge of the scraper 2 is kept in close contact with the outer edge of the idler roller 1 to clean the dirt adhering to the idler roller 1.

[0052] During this process, the cutting edge of scraper 2 continuously experiences slight wear, and scraper 2 also performs compensatory feeding synchronously under the elastic force of spring 6.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A belt conveyor idler roller scraper tensioning device, wherein the top or bottom edge of the scraper (2) is attached to the outer edge of the idler roller (1) along its entire length, characterized in that: Includes a support plate (7), a connecting rod (5), a spring (6), and a scraper bracket (3); The support plate (7) is fixedly installed as a frame, and the scraper (2) is installed and fixed on the scraper bracket (3); The front end of the connecting rod (5) is fixed to the support plate (7), and the rear end is slidably connected to the scraper bracket (3); a sliding pair is formed between the scraper bracket (3) and the connecting rod (5) to support the scraper (2) to move closer to or away from the roller (1) perpendicular to the generatrix of the roller (1); The spring (6) is located between the support plate (7) and the scraper bracket (3) and is sleeved on the connecting rod (5). Its elasticity causes the scraper (2) to press against the idler roller (1).

2. The belt conveyor idler roller scraper tensioning device according to claim 1, characterized in that: The rear end of the connecting rod (5) is connected to the scraper bracket (3) via the rear end connecting plate (4).

3. The belt conveyor idler roller scraper tensioning device according to claim 2, characterized in that: The rear connecting plate (4) is an L-shaped plate structure formed by bending the front and rear parts at the junction, and its rear end is fixedly connected to the scraper bracket (3); The rear end of the connecting rod (5) passes through the front part of the rear end connecting plate (4) and is slidably connected to the rear end connecting plate (4).

4. The belt conveyor idler roller scraper tensioning device according to claim 3, characterized in that: It also includes the rear nut; The rear part of the connecting rod (5) has a screw structure, and the rear end nut is fastened to the rear end of the connecting rod (5) by the rear thread engagement of the rear end connecting plate (4).

5. The belt conveyor idler roller scraper tensioning device according to claim 1, characterized in that: The front end of the connecting rod (5) is detachably connected to the support plate (7) via the front connecting plate (8).

6. The belt conveyor idler roller scraper tensioning device according to claim 5, characterized in that: The front connecting plate (8) is an L-shaped plate structure formed by bending the front and rear parts at the junction. Its front part is detachably connected to the support plate (7), and its rear part is fixedly connected to the front end of the connecting rod (5).

7. A belt conveyor idler roller scraper tensioning device according to claim 6, characterized in that: The front part of the front connecting plate (8) is detachably connected to the support plate (7) via a threaded connector.

8. The belt conveyor idler roller scraper tensioning device according to claim 1, characterized in that: The scraper (2) is detachably connected to the scraper bracket (3) via a threaded connector.

9. A belt conveyor idler roller scraper tensioning device according to claim 1, characterized in that: The support plate (7), connecting rod (5), spring (6) and scraper bracket (3) are arranged symmetrically in pairs.

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