Tooth roller assembly of crusher

Abstract

The utility model relates to a tooth roller assembly of a crusher, which belongs to the technical field of crushers and comprises a spline shaft, a plurality of tooth holders and a plurality of crushing teeth, shaft holes are arranged in the middles of the plurality of tooth holders, spline grooves are arranged on the hole walls of the shaft holes, the spline shaft is sequentially fixed in the plurality of shaft holes in a penetrating manner, and splines on the spline shaft extend into the corresponding spline grooves. A plurality of protruding blocks are fixed to the peripheries of the tooth holders at intervals. Slots are formed in the tooth root ends of the crushing teeth; and the plurality of convex blocks are detachably inserted into the plurality of slots. According to the tooth roller structure, the tooth roller structure of a traditional crusher is improved, the spline shaft is firstly fixed in the shaft holes of the tooth holders in a penetrating mode, the splines on the spline shaft extend into the corresponding spline grooves, then the protruding blocks fixed to the tooth holders are detachably inserted into the inserting grooves of the crushing teeth, and the situation that the whole tooth roller is replaced after a single crushing tooth is damaged in the prior art can be avoided; and the replacement convenience of the crushing teeth is improved.

Description

Technical Field

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

[0002] Crushers are widely used in many sectors such as mining, metallurgy, chemical industry, and coal mining. They are machines that use the teeth on toothed rollers to bite materials into the crushing zone, causing the materials to be crushed by compression or shearing.

[0003] Roller crushers are typically classified into single-roll, double-roll, and multi-roll crushers based on the number of toothed rollers. They are mainly suitable for coarse and medium-scale crushing of brittle, lumpy materials in industries such as mining, metallurgy, chemicals, and coal mining. They can handle large feed sizes and crush materials with a compressive strength ≤160MPa. Particularly in the coal industry, using this machine to crush raw coal requires only iron and impurity removal; grinding is unnecessary. The crushed material has uniform particle size and a low over-grinding rate, simplifying the coal preparation process and reducing investment and production costs. Currently, a common problem with roller crushers on the market is the difficulty in replacing the crushing teeth. When any one crushing tooth becomes severely worn, the entire machine needs to be replaced, resulting in high costs.

[0004] Therefore, how to design a crusher toothed roller with a simple structure, a firm connection, and easy replacement of crushing teeth is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] This utility model provides a toothed roller assembly for a crusher, solving the technical problem of inconvenient replacement of crushing teeth in existing crusher toothed rollers.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a toothed roller assembly for a crusher, comprising: a splined shaft, multiple tooth seats, and multiple crushing teeth.

[0007] Each of the multiple gear seats has a shaft hole in the middle and a spline groove on the wall of the shaft hole. The spline shaft is sequentially inserted into the multiple shaft holes and the spline on it extends into the corresponding spline groove. Multiple protrusions are fixed at intervals on the outer periphery of the multiple gear seats. Each of the multiple breaking teeth has a slot at the root end. The multiple protrusions can be detachably inserted into the multiple slots.

[0008] The beneficial effects of this utility model are: it improves the traditional crusher tooth roller structure by first inserting the spline shaft into the shaft holes of multiple tooth seats and extending the spline on the spline shaft into the corresponding spline groove, and then detachably inserting multiple protrusions fixed on the tooth seats into the slots of the crushing teeth. This avoids the need to replace the entire tooth roller after a single crushing tooth is damaged, thus improving the convenience of replacing the crushing teeth.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, it also includes multiple bolts and multiple nuts. Each of the multiple protrusions is provided with a through hole that passes through both sides. Each of the two opposite outer groove walls of the slot is provided with a countersunk hole. The through hole on the protrusion is arranged opposite to the two countersunk holes on the opposite slot. The multiple bolts are respectively inserted into the two opposite countersunk holes and the through hole, and their screw ends all protrude from the corresponding countersunk holes. The multiple nuts are respectively threaded to the screw ends of the multiple bolts that protrude from the corresponding countersunk holes.

[0011] The further beneficial effect of adopting the above method is that by first inserting the bolts sequentially into the two opposite countersunk holes and through holes, and then threading the nut onto the end of the bolt that protrudes from the countersunk hole, the stability of the connection between the protrusion and the slot can be improved, while also enhancing the convenience of replacing the breaker teeth.

[0012] Furthermore, it also includes a fixed bearing housing and a floating bearing housing, with the two ends of the splined shaft rotatably connected to the fixed bearing housing and the floating bearing housing respectively via bearings.

[0013] Furthermore, it also includes a coupling, which is fixed to one end of the splined shaft that extends out of the fixed bearing housing.

[0014] Furthermore, the tips of the multiple breaking teeth are all arranged in the direction of rotation of the spline shaft.

[0015] Furthermore, it also includes two limiting rings, which are sleeved on both ends of the spline shaft; a plurality of the tooth seats are located between the two limiting rings. Attached Figure Description

[0016] Figure 1 This is a side view of the toothed roller assembly of a crusher according to the present invention.

[0017] Figure 2 This is a schematic diagram of the assembly structure of a toothed roller assembly of a crusher according to the present invention, which includes a splined shaft, a toothed seat, multiple protrusions, and multiple crushing teeth.

[0018] Figure 3 This is a schematic diagram showing the disassembled structure of the toothed roller assembly of a crusher according to the present invention, including the splined shaft, tooth seat, multiple protrusions, and multiple crushing teeth.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Splined shaft, 11. Spline, 2. Gear seat, 21. Shaft hole, 22. Spline groove, 3. Breaking tooth, 31. Slot, 311. Countersunk hole, 4. Protrusion, 41. Through hole, 5. Bolt, 6. Nut, 7. Fixed bearing seat, 8. Floating bearing seat, 9. Coupling, 10. Limiting ring. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0022] like Figure 1 As shown, a toothed roller assembly for a crusher includes: a splined shaft 1, multiple tooth seats 2, and multiple crushing teeth 3.

[0023] Each of the multiple gear seats 2 has a shaft hole 21 in the middle and a spline groove 22 on the inner wall of the shaft hole 21. The spline shaft 1 is sequentially inserted into the multiple shaft holes 21 and the spline 11 on it extends into the corresponding spline groove 22. Multiple protrusions 4 are fixed at intervals on the outer periphery of the multiple gear seats 2. The root ends of the multiple breaking teeth 3 are provided with slots 31. The multiple protrusions 4 can be detachably inserted into the multiple slots 31.

[0024] like Figure 2 and Figure 3 As shown, in some specific embodiments, it may also include multiple bolts 5 and multiple nuts 6. Multiple protrusions 4 are provided with through holes 41 that pass through both sides. The two outer groove walls of the slot 31 are provided with countersunk holes 311. The through holes 41 on the protrusions 4 are arranged opposite to the two countersunk holes 311 on the opposite slot 31. Multiple bolts 5 are respectively inserted into the two opposite countersunk holes 311 and through holes 41, and their screw ends all protrude from the corresponding countersunk holes 311. Multiple nuts 6 are respectively threaded to the screw ends of the multiple bolts 5 that protrude from the corresponding countersunk holes 311.

[0025] like Figure 1 As shown, in some specific embodiments, it may also include a fixed bearing seat 7 and a floating bearing seat 8, with the two ends of the spline shaft 1 rotatably connected to the fixed bearing seat 7 and the floating bearing seat 8 respectively via bearings.

[0026] like Figure 1 As shown, in some specific embodiments, a coupling 9 may also be included, which is fixed to one end of the splined shaft 1 that protrudes from the fixed bearing housing 7.

[0027] like Figure 2 and Figure 3 As shown, in some specific embodiments, the teeth of the multiple breaking teeth 3 are arranged in the rotation direction of the spline shaft 1.

[0028] like Figure 1 As shown, in some specific embodiments, it may also include limiting rings 10, there are two limiting rings 10 and they are sleeved on both ends of the spline shaft 1; multiple tooth seats 2 are located between the two limiting rings 10.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A toothed roll assembly for a crusher, characterised in that, It includes: A spline shaft (1), A plurality of tooth seats (2), the middle of each of the plurality of tooth seats (2) is provided with an axle hole (21), and the inner hole wall of the axle hole (21) is provided with a spline groove (22), the spline shaft (1) is sequentially fixed in the plurality of axle holes (21), and the spline (11) thereon extends into the corresponding spline groove (22), a plurality of protrusions (4) are fixed at intervals on the outer periphery of the plurality of tooth seats (2); A plurality of crushing teeth (3), the tooth root end of each of the plurality of crushing teeth (3) is provided with a slot (31); a plurality of protrusions (4) can be detachably inserted into a plurality of slots (31).

2. A toothed roll assembly for a crusher as claimed in claim 1, wherein, It also includes a plurality of bolts (5) and a plurality of nuts (6), each of the plurality of protrusions (4) is provided with a through hole (41) penetrating both sides, the opposite two outer side walls of the slot (31) are provided with a countersunk hole (311), the through hole (41) on the protrusion (4) is arranged opposite to the two countersunk holes (311) on the opposite slot (31); a plurality of bolts (5) are respectively provided in the opposite two countersunk holes (311) and the through hole (41), and the screw rod end of each of the plurality of bolts (5) penetrates the corresponding countersunk hole (311); a plurality of nuts (6) are respectively threadedly connected to the screw rod ends of the plurality of bolts (5) penetrating the corresponding countersunk holes (311).

3. A toothed roll assembly for a crusher as claimed in claim 1, wherein, It also includes a fixed bearing seat (7) and a floating bearing seat (8), both ends of the spline shaft (1) are rotatably connected to the fixed bearing seat (7) and the floating bearing seat (8) through bearings.

4. A toothed roll assembly for a crusher as claimed in claim 3, wherein, It also includes a shaft coupling (9), the shaft coupling (9) is fixed to one end of the spline shaft (1) penetrating the fixed bearing seat (7).

5. A toothed roll assembly for a crusher as claimed in claim 1, wherein, The tooth head of each of the plurality of crushing teeth (3) is arranged in the rotation direction of the spline shaft (1).

6. A toothed roll assembly for a crusher as claimed in claim 1, wherein, It also includes a limiting ring (10), the limiting ring (10) is two and is sleeved on both ends of the spline shaft (1); a plurality of tooth seats (2) are located between the two limiting rings (10).

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