Double-toothed roller crusher anti-run structure

Abstract

The utility model provides a kind of double-toothed roll crusher prevents material running structure, including crushing box, the inside of the crushing box, two crushing rollers are arranged at the width direction of the crushing box two sides interval, the both ends of each crushing roller are rotatably connected with the crushing box by bearing and bearing seat respectively, the axial both sides of each crushing roller are respectively sleeved with protective assembly, the side of each protective assembly is fixedly connected with the side of corresponding bearing seat close to the direction of crushing roller.The utility model, by setting protective assembly, the inside of bearing seat and crushing box is blocked, avoid dust or broken material into the gap between shaft and bearing seat, by setting baffle to half split structure, to facilitate installation and disassembly, and then regular maintenance of equipment in later period;By setting two sealing felt, protective assembly and main shaft can be completely without gap, and then better protect bearing.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to a material-preventing structure for a double-toothed roller crusher. Background Technology

[0002] In existing double-toothed roller crushers, there is a significant gap between the shaft and the bearing housing. During the crushing process, the fine particles, dust, or debris generated may contaminate the bearing, affecting its service life and increasing the operating cost of the equipment. Subsequent downtime for replacement will result in even greater economic losses. Utility Model Content

[0003] The main purpose of this utility model is to provide a material-preventing structure for a double-toothed roller crusher, so as to solve the problem that dust or debris may contaminate the bearings, affect the service life of the bearings, increase the operating cost of the equipment, and cause greater economic losses due to subsequent shutdown and replacement.

[0004] To solve the above problems, the present invention adopts the following technical solution: a material-preventing structure for a double-toothed roller crusher, comprising a crushing box, wherein two crushing rollers are spaced apart on both sides of the crushing box in the width direction, and both ends of each crushing roller are rotatably connected to the crushing box through bearings and bearing seats respectively, and protective components are respectively sleeved on both sides of the axial direction of each crushing roller, and one side of each protective component is fixedly connected to the side of the corresponding bearing seat near the crushing roller.

[0005] Furthermore, each of the crushing rollers includes a main shaft and a plurality of toothed rings fixed on the main shaft. The plurality of toothed rings are arranged at intervals along the axial direction of the main shaft, and the plurality of toothed rings of the two crushing rollers are arranged alternately. The two ends of each main shaft are respectively inserted into the corresponding bearing.

[0006] Furthermore, each of the protective components includes a baffle with a circular hole for slidingly fitting onto the outside of the main shaft through the hole, and one side of the baffle is fixedly connected to the side wall of the bearing seat.

[0007] Furthermore, the baffle is a split structure, including a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate are respectively provided with arc-shaped grooves on their respective abutting sides. The two arc-shaped grooves are joined together to form the circular hole. The first connecting plate and the second connecting plate are respectively fixedly connected to the base and cover plate of the bearing seat.

[0008] Furthermore, an annular sealing felt is fixed on the inner wall of the circular hole of each baffle, and the end of the sealing felt away from the circular hole abuts against the outer wall of the main shaft.

[0009] Furthermore, two sealing felts are fixed on the inner wall of the circular hole of each baffle, and the two sealing felts are arranged at an axial distance along the circular hole.

[0010] Furthermore, partitions are fixed on both sides of the crushing box along its length, and the two partitions divide the crushing box into a crushing space located in the middle of the two crushing boxes and a power space located on both sides of the crushing box along its length. Multiple toothed rings are located in the crushing space, and each protective component is located in the corresponding power space.

[0011] Furthermore, a gap is provided between every two adjacent toothed rings on the crushing roller, and comb plates are fixed on both sides of the crushing box in the width direction. Each comb plate is fixed with multiple comb teeth, and the free ends of the multiple comb teeth extend into the gaps between the multiple toothed rings on the corresponding sides.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up protective components, the bearing housing is blocked from the inside of the crushing box, thereby preventing dust or debris from entering the gap between the shaft and the bearing housing; by setting the baffle as a split structure, it is fixedly connected to the base and cover plate of the bearing housing respectively, which facilitates installation and disassembly, and facilitates regular maintenance of the equipment in the future; by setting two sealing felts, there can be no gap between the protective components and the main shaft, thus better protecting the bearing. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the anti-material-running structure of the double-toothed roller crusher of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of part A;

[0017] Figure 3 for Figure 1 Enlarged view of part B.

[0018] Explanation of reference numerals in the attached figures

[0019] 1. Crushing box; 11. Crushing space; 12. Power space; 2. Crushing roller; 21. Main shaft; 22. Bushing; 23. Gear ring; 3. Bearing; 4. Bearing housing; 5. Protective components; 51. Baffle; 511. Groove; 52. Sealing felt; 6. Partition; 61. Clearance hole; 7. Comb plate; 71. Comb teeth. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Please see Figures 1 to 3 As shown, a material-prevention structure for a double-toothed roller crusher includes a crushing box 1, crushing rollers 2, bearings 3, bearing seats 4, and protective components 5. The crushing box 1 is a rectangular box with an open top, the open end of which is used to receive materials. There are two crushing rollers 2, which are spaced apart on both sides of the width of the crushing box 1, and the central axes of the two crushing rollers 2 are parallel to each other. Specifically, each crushing roller 2 includes a main shaft 21 and multiple toothed rings 23. The multiple toothed rings 23 are fixed on the main shaft 21 and arranged at intervals along the axial direction of the main shaft 21. The multiple toothed rings 23 of the two crushing rollers 2 are arranged alternately, thereby crushing the material during the rotation of the two crushing rollers 2. It should be noted that one end of the two crushing rollers 2 passes through the crushing box 1 and is connected to a power device located outside the crushing box 1. The external power device can be a drive motor in the prior art, used to drive the two crushing rollers 2 to rotate, which will not be described in detail here.

[0022] In this embodiment, each crushing roller 2 is rotatably connected to the crushing box 1 at both ends via bearings 3 and bearing seats 4. In practice, both ends of each main shaft 21 are respectively inserted into the corresponding bearing 3, while the bearing seat 4 is fitted over the outer side of the corresponding bearing 3 to limit its movement. Four protective components 5 are provided, each fitted onto both axial ends of two crushing rollers 2; that is, protective components 5 are fitted on both axial sides of each crushing roller 2. One side of each protective component 5 is fixedly connected to the side of the corresponding bearing seat 4 closest to the crushing roller 2. Preferably, the fixed connection between the protective component 5 and the bearing seat 4 can be welding, as is common in the prior art, to better block the interior of the crushing box 1 from the bearing seat 4, thereby preventing dust or debris from entering the gap between the shaft and the bearing seat 4.

[0023] Specifically, each protective component 5 includes a baffle 51 with a circular hole for slidingly fitting onto the outside of the main shaft 21. One side of the baffle 51 is fixedly connected to the side wall of the bearing housing 4. The baffle 51 has a split structure, including two spliced ​​first connecting plates and second connecting plates (not shown in the figure). The sides of the first and second connecting plates that meet each other are provided with arc-shaped grooves, which together form a circular hole. The first and second connecting plates are fixedly connected to the base and cover plate of the bearing housing 4, respectively. This facilitates installation and disassembly, and consequently, regular maintenance of the equipment. Preferably, a bushing 22 is also fixedly installed on the main shaft 21 between the main shaft 21 and the circular hole to prevent wear on the main shaft 21.

[0024] In this embodiment, an annular sealing felt 52 is fixedly provided on the inner wall of the circular hole of each baffle 51, with the end of the sealing felt 52 away from the circular hole abutting against the outer wall of the main shaft 21. This ensures that there is no gap between the protective assembly 5 and the main shaft 21, thus providing better protection for the bearing 3. Specifically, the inner wall of the circular hole of the baffle 51 is provided with an annular groove 511 for accommodating the sealing felt 52, preventing displacement of the sealing felt 52 during equipment operation. Preferably, two sealing felts 52 are fixedly provided on the inner wall of the circular hole of each baffle 51, with the two sealing felts 52 spaced apart along the axial direction of the circular hole, to better protect the bearing seat 4 and prevent dust or debris from contaminating the bearing 3 due to wear of one of the sealing felts 52.

[0025] In this embodiment, two partitions 6 are fixedly installed on both sides of the crushing box 1 along its length. The two partitions 6 divide the crushing box 1 into a crushing space 11 located in the middle of the two crushing boxes 1 and a power space 12 located on both sides of the crushing box 1 along its length. Multiple toothed rings 23 are located in the crushing space 11, and each protective component 5 is located in the corresponding power space 12. It can be understood that each of the two partitions 6 has a clearance hole 61 corresponding to each crushing roller 2. The main shaft 21 of the two crushing rollers 2 is clearance-fitted with the clearance hole 61, that is, the clearance hole 61 will not affect the rotation of the main shaft 21. In this way, the material crushing process takes place in the crushing space 11. By setting two partitions 6, most of the dust or debris can be prevented from entering the power space 12. When a small amount of dust or debris enters the power space 12 through the clearance hole 61 of the partition 6, the dust and debris can be blocked by the protective component 5, thus greatly avoiding the impact of dust or debris on the bearing 3.

[0026] In this embodiment, a gap is provided between every two adjacent toothed rings 23 on the crushing roller 2. Fine materials after crushing may get stuck in these gaps. Comb plates 7 are fixed to both sides of the crushing chamber 1 in the width direction. Each comb plate 7 has multiple comb teeth 71 fixed to it, with the free ends of the comb teeth 71 extending into the gaps between the toothed rings 23 on the corresponding sides. This allows the crushing roller 2 to be cleaned during rotation. Furthermore, the comb plates 7 allow materials to pass more smoothly through the crushing area, reducing splashing caused by excessive compression and collision. This reduces the extent to which dust and particulate matter spread throughout the crushing chamber, thereby reducing the likelihood of them reaching the bearing 3.

[0027] The above description is only a preferred embodiment of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.

Claims

1. A material-preventing structure for a double-toothed roller crusher, comprising a crushing box (1), wherein two crushing rollers (2) are spaced apart on both sides of the crushing box (1) in the width direction, and both ends of each crushing roller (2) are rotatably connected to the crushing box (1) via bearings (3) and bearing seats (3), characterized in that, Each of the crushing rollers (2) is fitted with a protective component (5) on both sides of its axial direction. One side of each protective component (5) is fixedly connected to the side of the corresponding bearing (3) seat that is close to the crushing roller (2).

2. The anti-material-running structure for a double-toothed roller crusher according to claim 1, characterized in that, Each of the crushing rollers (2) includes a main shaft (21) and a plurality of toothed rings (23) fixed on the main shaft (21). The plurality of toothed rings (23) are arranged at intervals along the axial direction of the main shaft (21), and the plurality of toothed rings (23) of the two crushing rollers (2) are arranged alternately. The two ends of each main shaft (21) are respectively inserted into the corresponding bearings (3).

3. The anti-material-running structure for a double-toothed roller crusher according to claim 2, characterized in that, Each of the protective components (5) includes a baffle (51) with a circular hole for slidingly fitting onto the outside of the main shaft (21) through the circular hole. One side of the baffle (51) is fixedly connected to the side wall of the bearing (3) seat.

4. The anti-material-running structure for a double-toothed roller crusher according to claim 3, characterized in that, The baffle (51) is a split structure, including a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate are respectively provided with arc grooves on the side where they meet. The two arc grooves meet to form the circular hole. The first connecting plate and the second connecting plate are respectively fixedly connected to the base and cover plate of the bearing (3) seat.

5. The anti-material-running structure for a double-toothed roller crusher according to claim 3 or 4, characterized in that, An annular sealing felt (52) is fixed on the inner wall of the circular hole of each of the baffles (51), and the end of the sealing felt (52) away from the circular hole abuts against the outer wall of the main shaft (21).

6. The anti-material-running structure for a double-toothed roller crusher according to claim 5, characterized in that, Two sealing felts (52) are fixed on the inner wall of the circular hole of each of the baffles (51), and the two sealing felts (52) are arranged at an axial distance along the circular hole.

7. The anti-material-running structure for a double-toothed roller crusher according to claim 2, characterized in that, The crushing box (1) is fixed with partitions (6) on both sides along its length. The two partitions (6) divide the crushing box (1) into a crushing space (11) located in the middle of the two crushing boxes (1) and a power space (12) located on both sides along its length. Multiple toothed rings (23) are located in the crushing space (11), and each protective component (5) is located in the corresponding power space (12).

8. The anti-material-running structure for a double-toothed roller crusher according to claim 2, characterized in that, There is a gap between every two adjacent toothed rings (23) on the crushing roller (2). Comb plates (7) are fixed on both sides of the crushing box (1) in the width direction. Each comb plate (7) is fixed with multiple comb teeth (71). The free ends of the multiple comb teeth (71) extend into the gap between the multiple toothed rings (23) on the corresponding side.

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