Movable carrier roller set

Abstract

The invention provides a movable carrier roller set which comprises idler wheels, a carrier roller support and carrier rollers, the carrier rollers are arranged on the carrier roller support, the idler wheels are arranged on the two sides of the carrier roller support, the idler wheels, the carrier roller support and the carrier rollers are combined and assembled into one carrier roller set, the number of the carrier roller sets is at least two, and a fixed-distance chain is arranged between the carrier roller sets. One end of the fixed-distance chain is fixed on the moving mechanism, and the fixed-distance chain is driven to move through the moving mechanism, so that the carrier roller groups are driven to be separated. The carrier rollers are supported through the carrier roller support, meanwhile, the fixed-distance chains are arranged on the two sides of the carrier roller support, when the carrier roller sets are pulled open, the fixed-distance chains limit the maximum pull-open distance of the carrier roller sets, the situation that the adhesive tape droops due to the fact that the carrier roller sets are pulled too much is avoided, meanwhile, the positions of the idler wheels are limited through the limiting stop rods, and the adhesive tape is prevented from falling off. Therefore, the position of the carrier roller group is limited, and the accuracy of movement is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of conveying equipment, and in particular to a mobile roller group. Background Art

[0002] At present, during the transportation process, the long-distance belt locomotive-type tensioning roller and the head roller of the belt conveyor with a head telescopic mechanism have a large moving distance, resulting in a large distance of the belt being unsupported after moving, causing the belt to sag, affecting normal transportation work. The current roller rental is generally supported by a bracket, and when the roller group moves a large distance, it can only be supported by additional auxiliary equipment. The work cost is high and the position needs to be adjusted manually in real time, which is inefficient. For example, the published patent 2014103265470 discloses a gapless roller group, which translates the middle roller of the three rollers originally in the same cross-section forward or backward by an appropriate distance, and at the same time lengthens the length of the middle roller, so that the entire roller group is viewed from the transportation direction. The three rollers are placed crosswise and there is no gap in the middle. However, when the moving spacing is too large, the belt between the rollers will sag, affecting the use effect. Therefore, it is particularly important to solve the problem of belt sagging caused by the large moving distance of the roller group. Summary of the invention

[0003] The object of the present invention is to provide a mobile roller group, in which the rollers are supported by roller brackets, and distance chains are arranged on both sides of the roller brackets. When the roller group is pulled apart, the distance chains limit the maximum distance between the roller group and the roller group, so as to avoid the situation where the belt sags due to the large pulling of the roller group.

[0004] The present invention provides a movable roller group, comprising a roller, a roller bracket and a roller, wherein the roller is arranged on the roller bracket, and the roller is arranged on both sides of the roller bracket. The roller, the roller bracket and the roller are assembled into a roller group, and the number of the roller groups is at least two, and a distance chain is arranged between the roller groups, one end of the distance chain is fixed on a moving mechanism, and the distance chain is driven to move by the moving mechanism, thereby driving the roller group to open the distance.

[0005] A further improvement is that the number of rollers on the roller group is three, and they are arranged to be inclined at degrees relative to each other, and the rollers are arranged on the roller bracket through roller seats.

[0006] A further improvement is that a limit stop lever is provided on the roller, and the position of the roller is limited by the limit stop lever.

[0007] A further improvement is that a cleaning scraper is arranged just below the middle of the roller, and impurities adhering to the roller are scraped off by the cleaning scraper.

[0008] A further improvement is that an adjusting knob is provided at the upper end of the roller, and the rotation of the roller is restricted by rotating the adjusting knob, thereby adjusting the spacing of the roller group.

[0009] The beneficial effects of the present invention are as follows: the rollers are supported by roller brackets, and distance chains are arranged on both sides of the roller brackets. When the roller group is pulled apart, the distance chains limit the maximum distance between the roller groups, thereby avoiding the situation where the belt sags due to the large pulling of the roller group. At the same time, the position of the roller is limited by the limit lever to ensure that the roller does not deviate, thereby limiting the position of the roller group and ensuring the accuracy of movement. At the same time, the cleaning scraper is used to scrape off the impurities adhering to the roller, thereby increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention.

[0011] Figure 2 It is a structural side view of the present invention.

[0012] Among them: 1- roller, 2- roller bracket, 3- roller, 4- distance chain, 5- roller seat, 6- limit stop bar, 7- cleaning scraper, 8- adjustment knob. DETAILED DESCRIPTION

[0013] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0014] like Figure 1-2 As shown, this embodiment provides a mobile roller group, including a roller 1, a roller bracket 2 and a roller 3, the roller 3 is arranged on the roller bracket 2, the roller 1 is arranged on both sides of the roller bracket 2, the roller 1, the roller bracket 2 and the roller 3 are assembled into a roller group, the number of roller groups is two, and a distance chain 4 is arranged between the roller groups, one end of the distance chain 4 is fixed on the moving mechanism, and the distance chain 4 is driven to move by the moving mechanism, thereby driving the roller group to open the distance. There are three rollers 3 on the roller group, and they are arranged at an angle of 45° to each other. The rollers 3 are arranged on the roller bracket 2 through the roller seat 5. A limit stop rod 6 is arranged on the roller 1, and the position of the roller 1 is limited by the limit stop rod 6. A cleaning scraper 7 is arranged just below the middle of the roller 3, and the impurities adhering to the roller 3 are scraped off by the cleaning scraper 7. An adjusting knob 8 is provided at the upper end of the roller 1, and the rotation of the roller 1 is restricted by rotating the adjusting knob 8, thereby adjusting the spacing of the roller group.

[0015] The movable roller group is assembled into a whole by rollers 3, roller brackets 2, and rollers 1. The number of groups is selected according to the moving distance of the moving mechanism on the belt conveyor and connected by a distance chain 4. One end of the distance chain 4 is fixed on the moving mechanism, and the other end is fixed on the belt conveyor frame. Before the moving mechanism moves, each group of rollers is in a closed state. When moving, they are gradually pulled apart by the distance chain 4. When the distance chain 4 is pulled apart to be fully straightened, the maximum spacing is reached and it cannot be pulled apart any further, ensuring that the roller group can work within the best spacing.

Claims

1. A mobile roller group, comprising a roller (1), a roller bracket (2) and a roller (3), wherein the roller (3) is arranged on the roller bracket (2), the roller (1) is arranged on both sides of the roller bracket (2), and the roller (1), the roller bracket (2) and the roller (3) are assembled into a roller group, characterized in that: The number of the roller groups is at least two, and a distance chain (4) is provided between the roller groups. One end of the distance chain (4) is fixed to a moving mechanism, and the moving mechanism drives the distance chain (4) to move, thereby driving the roller groups to increase the distance between them.

2. A movable roller assembly according to claim 1, characterized in that: The number of rollers (3) on the roller group is three, and they are arranged at an angle of 45 degrees to each other. The rollers (3) are arranged on the roller bracket (2) via roller seats (5).

3. A movable roller assembly according to claim 1, characterized in that: A limit stop rod (6) is provided on the roller (1), and the position of the roller (1) is limited by the limit stop rod (6).

4. A movable roller assembly according to claim 1, characterized in that: A cleaning scraper (7) is provided just below the middle of the roller (3), and impurities adhering to the roller (3) are scraped off by the cleaning scraper (7).

5. A movable roller assembly as claimed in claim 1 or 3, characterized in that: An adjusting knob (8) is provided at the upper end of the roller (1), and the rotation of the roller (1) is restricted by rotating the adjusting knob (8), thereby adjusting the spacing of the roller group.

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