Movable carrier roller set

Abstract

The utility model 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 utility model relates to the technical field of conveying equipment, in particular to a mobile roller group. Background Art

[0002] Currently, during transportation, 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 movement, causing the belt to sag, affecting normal transportation work. Current roller idlers are generally supported by brackets, and when the roller group moves a large distance, they can only be supported by additional auxiliary equipment. The work cost is high and manual real-time position adjustment is required, which is inefficient. For example, the published patent 2014103265470 discloses a gapless roller group. The middle roller of the three rollers originally in the same cross-section is moved forward or backward by an appropriate distance, and the length of the middle roller is lengthened. When viewed from the transportation direction, the entire roller group is placed crosswise with no gap in between. However, when the moving distance 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. Utility Model Content

[0003] The purpose of the utility model is to provide a mobile roller group, which supports the rollers through roller brackets, and at the same time, fixed-distance chains are arranged on both sides of the roller brackets. When the roller group is pulled apart, the fixed-distance chains limit the maximum distance between the roller group and the fixed-distance chains, thereby avoiding the situation where the belt sags due to the large pulling of the roller group.

[0004] The utility model provides a movable roller group, comprising a roller, a roller bracket and an idler, 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 idler are assembled into a group of roller groups. The number of the roller groups is at least two, and a fixed-distance chain is arranged between the roller groups. One end of the fixed-distance chain is fixed on a moving mechanism, and the fixed-distance chain is driven to move by the moving mechanism, thereby driving the roller groups 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 lever is provided on the roller to limit the position of the roller.

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

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

[0009] The beneficial effects of the utility model are as follows: the rollers are supported by the 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, 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 the movement. At the same time, the cleaning scraper is used to scrape off impurities adhering to the roller, thereby improving the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the present utility model.

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

[0012] Among them: 1- roller, 2- roller bracket, 3- roller, 4- distance chain, 5- roller seat, 6- limit lever, 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 with reference to embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0014] like Figure 1-2 As shown, this embodiment provides a movable roller group, including a roller 1, a roller bracket 2 and a roller 3. The roller 3 is arranged on the roller bracket 2, and 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. There are two roller groups, and a distance chain 4 is arranged between the roller groups. One end of the distance chain 4 is fixed to the moving mechanism, and the distance chain 4 is driven by the moving mechanism to move, thereby driving the roller group to increase the distance. There are three rollers 3 on the roller group, and they are arranged at a 45° angle to each other. The rollers 3 are arranged on the roller bracket 2 through the roller seat 5. 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. A cleaning scraper 7 is provided just below the middle of the roller 3, and the cleaning scraper 7 is used to scrape off impurities adhering to the roller 3. An adjusting knob 8 is provided at the upper end of the roller 1. By rotating the adjusting knob 8, the rotation of the roller 1 is restricted, thereby adjusting the spacing of the roller group.

[0015] The mobile roller group is assembled into a whole by the roller 3, the roller bracket 2, and the roller 1. The number of groups is selected according to the moving distance of the mobile mechanism on the belt conveyor and is connected by a fixed-distance chain 4. One end of the fixed-distance chain 4 is fixed on the mobile mechanism and the other end is fixed on the belt conveyor frame. Before the mobile mechanism moves, each group of rollers is in a closed state. When moving, it is gradually pulled apart by the fixed-distance chain 4. When the fixed-distance chain 4 is fully extended, 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), and 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 on a moving mechanism, and the distance chain (4) is driven to move by the moving mechanism, thereby driving the roller groups to open the distance.

2. The movable roller assembly according to claim 1, characterized in that: There are three rollers (3) on the roller group, which 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. The movable roller assembly according to claim 1, characterized in that: A limit stop lever (6) is provided on the roller (1), and the position of the roller (1) is limited by the limit stop lever (6).

4. The 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 the cleaning scraper (7) is used to scrape off impurities adhered to the roller (3).

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

Images