A device capable of automatically adjusting and protecting a belt roller group

Abstract

The utility model discloses an automatic adjustment and protection belt roller group device, comprising a base, a first bracket is provided on the base, a telescopic hydraulic cylinder is rotatably connected to the upper part of the first bracket, a distributor is rotatably connected to one end of a swing arm on the base, and a roller group is rotatably connected to the other end of the swing arm; a first extension arm is provided on the distributor, the first extension arm is connected to a second extension arm, and the second extension arm is rotatably connected to the roller group through a first hinge shaft; a pin is provided on the first extension arm, and the pin is slidably matched with the first bracket up and down; two groups of variable groove angle roller groups are provided on the base, which are respectively located at the front and rear sides of the roller group, and the roller group is linked to the variable groove angle roller group. The automatic adjustment and protection belt roller group device provided by the utility model can effectively reduce the wear of the conveyor belt and the belt deviation problems.

Description

Technical Field

[0001] The utility model relates to the field of plough-type unloaders, in particular to a belt roller group device capable of automatically adjusting and protecting the belt roller group. Background Art

[0002] At present, many unloading equipment in the metallurgical industry use plow dischargers. The main working principle of the plow discharger is to use a push rod to drive the plow head to move up and down, so as to realize the unloading of materials. There is a row of fixed parallel rollers under the material distribution plow head. When unloading, the plow head presses the belt flat on the parallel roller group, and the material on the belt is unloaded into the lower hopper on both sides of the belt through the plow head to complete the unloading.

[0003] However, the existing plough type unloader has the following problems:

[0004] 1) During the unloading process, the belt is squeezed on the lower parallel roller, and the friction force is relatively large, so the belt is easily worn. The belt deformation at the transition position between the plowshare and the front part of the plowshare is large (the plowshare in the unloading section flattens the belt, and the belt running section is a grooved roller), and the belt is easy to break.

[0005] 2) The belt tends to deviate during unloading. Utility Model Content

[0006] The utility model aims to provide a device which can automatically adjust and protect a belt roller group, and can effectively reduce the problems of abrasion of a conveying belt and deviation of the belt.

[0007] To achieve the above-mentioned purpose, the utility model provides an automatically adjustable and protective belt roller group device, comprising a base, a first bracket is provided on the base, a telescopic hydraulic cylinder is rotatably connected to the upper part of the first bracket, a distributor is rotatably connected to the movable end of the telescopic hydraulic cylinder, one end of a swing arm is rotatably connected to the base, and the other end of the swing arm is rotatably connected to the roller group; a first extension arm is provided on the distributor, the first extension arm is connected to a second extension arm, and the second extension arm is rotatably connected to the roller group through a first hinge shaft; a pin is provided on the first extension arm, and the pin is slidably matched with the first bracket up and down; two groups of variable groove angle roller groups are provided on the base, which are respectively located on the front and rear sides of the roller group, and the roller group is linked to the variable groove angle roller group.

[0008] As a further improvement of the present invention, a vertically arranged first sliding groove is provided in the middle of the first bracket; the end of the pin shaft on the first extension arm is slidably matched with the first sliding groove.

[0009] As a further improvement of the utility model, the roller group includes a roller frame, on which at least two first rollers are rotatably connected, and the second extension arm is rotatably connected to the roller frame via a first hinge shaft.

[0010] As a further improvement of the utility model, each of the variable groove angle roller groups includes two symmetrically arranged variable groove angle roller assemblies, and the variable groove angle roller assembly includes a rotating frame, on which a second roller is rotatably connected, and the length direction of the second roller is perpendicular to the moving direction of the conveyor belt; a second bracket is rotatably connected to the middle part of the rotating frame, and the second bracket is connected to the base; an extension rod is connected to the rotating frame, and the roller frame is linked to the extension rod through a linkage.

[0011] As a further improvement of the utility model, a first guide rail is provided on the base, the first guide rail is parallel to the moving direction of the conveyor belt, and the bottom of the linkage member is slidably matched with the first guide rail; a vertically arranged second guide rail is provided on the linkage member, and the roller frame is slidably matched with the second guide rail; a second slide groove is provided in the middle of the linkage member, the second slide groove forms an angle with the horizontal plane, and one end of the extension rod is slidably matched with the second slide groove.

[0012] As a further improvement of the utility model, a third roller is provided between the two variable groove angle roller assemblies of each variable groove angle roller group, the third roller is rotatably connected to the base, and the height of the third roller is the same as the height of the second roller when in a horizontal state.

[0013] As a further improvement of the utility model, the distributor is triangular in shape, and both sides thereof are provided with inclined material guide surfaces, and a lower hopper is provided on one side of the rear end of the material guide surface.

[0014] Beneficial Effects

[0015] Compared with the prior art, the advantages of the automatic adjustment and protection belt roller assembly device of the utility model are:

[0016] 1. Since the telescopic hydraulic cylinder, distributor, roller group and variable groove angle roller group are linked, the upward and downward swing of the distributor, the lifting and lowering of the roller group and the inclination angle of the second roller in the variable groove angle roller group can be adjusted simultaneously through the extension and retraction of the telescopic hydraulic cylinder. The upward and downward swing of the distributor and the lifting and lowering of the roller group can be controlled simultaneously, so as to adjust the pressure of the two on the conveyor belt, slow down the wear speed of the conveyor belt, and reduce the probability of the conveyor belt breaking. By adjusting the inclination angle of the second roller symmetrically arranged on both sides of the variable groove angle roller group, the conveyor belt passing through this section is made lower in the middle and higher on both sides of the edge to prevent it from running off. The movement of the distributor, roller group and variable groove angle roller group is completed by a single telescopic hydraulic cylinder, which has low energy consumption and simple control.

[0017] 2. The pin end on the first extension arm is slidably matched with the first slide groove to prevent the roller group from getting stuck when swinging and lifting.

[0018] 3. The linkage piece is slidably matched with the first guide rail of the base, and the roller frame is slidably matched with the second guide rail of the linkage piece, which ensures that the linkage piece moves only in the horizontal plane and prevents the roller group from getting stuck when swinging and lifting. When the linkage piece moves, the height of one end of the extension rod of the variable groove angle roller assembly is changed through the second slide groove, so that the inclination angle of the second roller can be changed. The structure is simple and the working stability is good.

[0019] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a front view of the state 1 of the device capable of automatically adjusting and protecting the belt roller group;

[0022] Figure 2 It is a left view of the state 1 of the device capable of automatically adjusting and protecting the belt roller group;

[0023] Figure 3 It is a left view of the state 1 of the linkage member and the roller frame;

[0024] Figure 4 It is the front view of the state 2 of the device capable of automatically adjusting and protecting the belt roller group;

[0025] Figure 5 It is a left view of the state 2 of the device capable of automatically adjusting and protecting the belt roller group;

[0026] Figure 6 It is the left view of the second state of the linkage and the roller frame. DETAILED DESCRIPTION

[0027] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0028] Example

[0029] The specific implementation of the utility model is as follows Figures 1 to 6As shown, a device for automatically adjusting and protecting a belt idler group includes a base 1, a first bracket 11 is provided on the base 1, a telescopic hydraulic cylinder 2 is rotatably connected to the upper part of the first bracket 11, a distributor 3 is rotatably connected to the movable end of the telescopic hydraulic cylinder 2, one end of a swing arm 6 is rotatably connected to the base 1, and a roller group 5 is rotatably connected to the other end of the swing arm 6, and the number of swing arms 6 is multiple and parallel to each other. A first extension arm 31 is provided on the distributor 3, the first extension arm 31 is connected to a second extension arm 4, and the second extension arm 4 is rotatably connected to the roller group 5 through a first hinge shaft 41. A pin 32 is provided on the first extension arm 31, and the pin 32 slides up and down with the first bracket 11. Two groups of variable groove angle roller groups are provided on the base 1, which are respectively located on the front and rear sides of the roller group 5, and the roller group 5 is linked to the variable groove angle roller group.

[0030] There are two first brackets 11 and they are arranged symmetrically, and the telescopic hydraulic cylinder 2 is located between the two first brackets 11. A vertically arranged first slide groove 12 is provided in the middle of the first bracket 11. The end of the pin shaft 32 on the first extension arm 31 is slidably matched with the first slide groove 12.

[0031] The roller group 5 includes a roller frame 51, on which at least two first rollers 52 are rotatably connected, and each first roller 52 is arranged in sequence along the moving direction of the conveyor belt 9. The second extension arm 4 is rotatably connected to the rear of the roller frame 51 through the first hinge shaft 41.

[0032] Each variable groove angle roller group includes two variable groove angle roller assemblies 7 symmetrically arranged left and right along the conveying direction of the conveyor belt 9. The variable groove angle roller assembly 7 includes a rotating frame 71, and a second roller 72 is rotatably connected to the rotating frame 71. The length direction of the second roller 72 is perpendicular to the moving direction of the conveyor belt 9. A second bracket 73 is rotatably connected to the middle of the rotating frame 71, and the second bracket 73 is connected to the base 1. An extension rod 74 is connected to the rotating frame 71, and the roller frame 51 is linked to the extension rod 74 through a linkage 8.

[0033] In this embodiment, the base 1 is provided with a first guide rail 13, which is parallel to the moving direction of the conveyor belt 9, and the bottom of the linkage member 8 is slidably matched with the first guide rail 13. The linkage member 8 is provided with a vertically arranged second guide rail 82, and the roller frame 51 is slidably matched with the second guide rail 82. A second slide groove 81 is provided in the middle of the linkage member 8, and the second slide groove 81 is at an angle with the horizontal plane, and one end of the extension rod 74 is slidably matched with the second slide groove 81.

[0034] A third roller 10 is also provided between the two variable groove angle roller assemblies 7 of each variable groove angle roller group. The third roller 10 is rotatably connected to the base 1. The height of the third roller 10 is the same as the height of the second roller 72 in a horizontal state. The conveyor belt 9 is located above the first roller 52, the second roller 72, and the third roller 10, and below the distributor 3.

[0035] The distributor 3 is triangular, and both sides thereof are provided with inclined material guide surfaces, and a lower hopper 14 is provided on one side of the rear end of the material guide surface. The material moves toward the tip of the head of the distributor 3 along the conveyor belt 9, and then the material is distributed to the left and right sides by the tip of the head of the distributor 3. Driven by the conveyor belt 9, the material enters the lower hopper 14 along the material guide surface of the distributor 3, completing the steps of material distribution and unloading.

[0036] When the telescopic hydraulic cylinder 2 contracts and drives the front end of the distributor 3 to flip up, the height of the roller group 5 decreases, one end of the extension rod 74 moves to the lower end of the second chute 81, and the inclination angle of the second roller 72 relative to the horizontal plane increases. At this time, the conveyor belt 9 of this section is low in the middle and high on both sides. When the telescopic hydraulic cylinder 2 extends and drives the front end of the distributor 3 to press downward, the height of the roller group 5 increases, one end of the extension rod 74 moves to the upper end of the second chute 81, and the second roller 72 is basically flat. At this time, the conveyor belt 9 of this section is basically flattened by the distributor 3 and the roller group 5.

[0037] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. An automatically adjustable and protective belt roller assembly device, comprising a base (1), a first bracket (11) being provided on the base (1), a telescopic hydraulic cylinder (2) being rotatably connected to the upper portion of the first bracket (11), a distributor (3) being rotatably connected to the movable end of the telescopic hydraulic cylinder (2), and characterized in that: One end of a swing arm (6) is rotatably connected to the base (1), and the other end of the swing arm (6) is rotatably connected to a roller group (5); a first extension arm (31) is provided on the distributor (3), the first extension arm (31) is connected to a second extension arm (4), and the second extension arm (4) is rotatably connected to the roller group (5) via a first hinge shaft (41); a pin shaft (32) is provided on the first extension arm (31), and the pin shaft (32) and the first bracket (11) are slidably matched up and down; two groups of variable groove angle roller groups are provided on the base (1), which are respectively located on the front and rear sides of the roller group (5), and the roller group (5) is linked to the variable groove angle roller group.

2. The automatic adjustment and protection belt roller assembly device according to claim 1 is characterized in that: A vertically arranged first slide groove (12) is provided in the middle of the first bracket (11); the end of the pin shaft (32) on the first extension arm (31) is slidably matched with the first slide groove (12).

3. The automatic adjustment and protection belt roller assembly device according to claim 1 is characterized in that: The roller group (5) comprises a roller frame (51), to which at least two first rollers (52) are rotatably connected, and the second extension arm (4) is rotatably connected to the roller frame (51) via a first hinge shaft (41).

4. The automatic adjustment and protection belt roller assembly device according to claim 3 is characterized in that: Each variable groove angle roller group comprises two symmetrically arranged variable groove angle roller assemblies (7), the variable groove angle roller assembly (7) comprising a rotating frame (71), a second roller (72) being rotatably connected to the rotating frame (71), the length direction of the second roller (72) being perpendicular to the moving direction of the conveyor belt (9); a second bracket (73) being rotatably connected to the middle of the rotating frame (71), the second bracket (73) being connected to the base (1); an extension rod (74) being connected to the rotating frame (71), the roller frame (51) being linked to the extension rod (74) via a linkage member (8).

5. The automatic adjustment and protection belt roller assembly device according to claim 4 is characterized in that: The base (1) is provided with a first guide rail (13), the first guide rail (13) is parallel to the moving direction of the conveyor belt (9), and the bottom of the linkage member (8) is slidably matched with the first guide rail (13); the linkage member (8) is provided with a vertically arranged second guide rail (82), and the roller frame (51) is slidably matched with the second guide rail (82); a second slide groove (81) is provided in the middle of the linkage member (8), the second slide groove (81) forms an angle with the horizontal plane, and one end of the extension rod (74) is slidably matched with the second slide groove (81).

6. The automatic adjustment and protection belt roller assembly device according to claim 4, characterized in that: A third roller (10) is also provided between the two variable groove angle roller assemblies (7) of each variable groove angle roller group. The third roller (10) is rotatably connected to the base (1). The height of the third roller (10) is the same as the height of the second roller (72) when in a horizontal state.

7. The automatic adjustment and protection belt roller assembly device according to claim 1, characterized in that: The distributor (3) is triangular in shape, and has inclined material guide surfaces on both sides thereof, and a lower hopper (14) is provided on one side of the rear end of the material guide surface.

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