A kind of buckle structure for fixing crusher tooth plate

Abstract

The utility model relates to mechanical technical field, concretely is a kind of embedded buckle structure for fixing breaker tooth plate. Including main shaft, tooth plate, the main shaft is equipped with several main shaft surface, each main shaft surface is equipped with several tooth plate, spacing is equipped between adjacent tooth plate, spacing is equipped with positioning plate, main shaft surface is connected with tooth plate through embedded buckle structure between, the embedded buckle structure includes L type protrusion, recess, several discontinuous arrangement L type protrusions are equipped on main shaft surface, recess is equipped with the cooperation of L type protrusion in the end of tooth plate close to main shaft surface. Compared with prior art, embedded buckle structure bears tooth plate and bears horizontal shearing force and vertical direction tensile force in work, has longer contact area and higher strength, reduces bolt pressure, greatly reduces the failure caused by bolt fracture failure. And tooth plate modular design, through the discontinuous arrangement L type protrusion, recess, the characteristics of easy disassembly are realized.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically a snap-fit ​​structure for fixing the toothed plate of a crusher. Background Technology

[0002] Currently, in the operation of crushers, the main shaft and toothed plate are fixed with bolts. However, these bolts are prone to fatigue failure and breakage. The current solution is to use keyways to distribute the stress on the fixing bolts. However, this solution can only delay bolt failure and does not effectively solve the problem of machine downtime caused by bolt issues. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this utility model provides a snap-fit ​​structure for fixing the toothed plate of a crusher.

[0004] To achieve the above objectives, a snap-fit ​​structure for fixing the toothed plates of a crusher is designed, including a main shaft and toothed plates. The main shaft has several main shaft surfaces, and each main shaft surface has several toothed plates. There is a gap between adjacent toothed plates, and a positioning plate is provided at the gap. The main shaft surfaces and toothed plates are connected by a snap-fit ​​structure. The snap-fit ​​structure includes L-shaped protrusions and grooves. Several discontinuously arranged L-shaped protrusions are provided on the main shaft surface, and a groove that mates with the L-shaped protrusions is provided at one end of the toothed plate near the main shaft surface.

[0005] The toothed plate is provided with several staggered breaking teeth.

[0006] One bolt is provided on one side of the L-shaped protrusion, and the bolt connects the main shaft and the gear plate.

[0007] The positioning plate is detachably connected to the spindle surface.

[0008] The L-shaped protrusions are arranged in a staggered manner.

[0009] Compared with existing technologies, this invention features a snap-fit ​​structure that allows the toothed plate to withstand horizontal shear forces and vertical tensile forces during operation. This results in a longer contact area and higher strength, reducing bolt pressure and significantly decreasing failures caused by bolt breakage. Furthermore, the modular design of the toothed plate, with its discontinuously arranged L-shaped protrusions and grooves, facilitates easy disassembly. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a front view of the present invention.

[0012] Figure 3 This is a side view of the present invention.

[0013] Figure 4 This is a schematic diagram of the main shaft of this utility model.

[0014] Figure 5 This is a cross-sectional schematic diagram of the spindle of this utility model.

[0015] Figure 6 This is a cross-sectional schematic diagram of the toothed plate of this utility model. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings. Example 1

[0017] like Figures 1 to 6 As shown, the spindle 1 has several spindle surfaces 1-1, each spindle surface 1-1 has several toothed plates 3, and there is a gap 2 between adjacent toothed plates 3. A positioning plate 4 is provided at the gap 2. The spindle surface 1-1 and the toothed plates 3 are connected by a snap-fit ​​structure 5. The snap-fit ​​structure includes an L-shaped protrusion 5-1 and a groove 5-2. The spindle surface 1-1 has several discontinuously arranged L-shaped protrusions 5-1. The toothed plate 3 has a groove 5-2 that mates with the L-shaped protrusion 5-1 at one end near the spindle surface 1-1.

[0018] The toothed plate 3 is provided with several staggered breaking teeth 3-1.

[0019] Bolt 6 is provided on one side of the L-shaped protrusion 5-1, connecting the main shaft 1 and the gear plate 3. In this embodiment, the interlocking structure bears the horizontal shear force and vertical tensile force that the gear plate withstands during operation, and the strength is increased by the longer contact area of ​​the interlocking structure. The bolt on the left side of the existing traditional structure is eliminated, and only bolt 6 on the right side is retained, mainly for positioning.

[0020] The positioning plate 4 is detachably connected to the spindle surface 1-1. In this embodiment, the positioning plate 4 is connected to the spindle surface 1-1 by bolt 7.

[0021] In this embodiment, the toothed plate 3 is connected to the spindle 1 via a snap-fit ​​structure 5 and a bolt 6, which facilitates disassembly and provides better strength. The snap-fit ​​structure 5 is provided with an L-shaped protrusion 5-1, and the L-shaped structure can withstand both shear force and tensile force simultaneously during the operation of the toothed plate.

[0022] And, as Figure 4 As shown, the L-shaped protrusions 5-1 are arranged discontinuously, with gaps between adjacent L-shaped protrusions 5-1. When the toothed plate 3 needs to be replaced, the positioning plate 4 is removed, and the toothed plate 3 is moved a short distance in the direction of the spacing 2, so that the groove 5-2 of the toothed plate 3 is misaligned with the L-shaped protrusion on the spindle surface 1-1, and the toothed plate 3 can be removed. Furthermore, the size of each toothed plate 3 is reduced, eliminating the need to design the toothed plate 3 as a large single piece, making it easier to replace the toothed plate 3 without having to replace an entire piece of toothed plate 3. Example 2

[0023] This embodiment only describes the differences from Embodiment 1; the similarities will not be repeated.

[0024] The difference between this embodiment and Embodiment 1 is that in this embodiment, the L-shaped protrusions 5-1 are arranged discontinuously and in a staggered manner.

Claims

1. A fastening structure for fixing a crusher tooth plate, comprising a main shaft and a tooth plate, characterized in that: The spindle (1) is provided with several spindle surfaces (1-1), and several toothed plates (3) are provided on each spindle surface (1-1). There is a gap (2) between adjacent toothed plates (3), and a positioning plate (4) is provided at the gap (2). The spindle surface (1-1) and the toothed plate (3) are connected by a snap-fit ​​structure (5). The snap-fit ​​structure includes an L-shaped protrusion (5-1) and a groove (5-2). Several non-continuous L-shaped protrusions (5-1) are provided on the spindle surface (1-1). The toothed plate (3) is provided with a groove (5-2) that matches the L-shaped protrusion (5-1) at one end near the spindle surface (1-1).

2. The snap-fit ​​structure for fixing the toothed plate of a crusher according to claim 1, characterized in that: The toothed plate (3) is provided with a number of staggered breaking teeth (3-1).

3. The snap-fit ​​structure for fixing the toothed plate of a crusher according to claim 1, characterized in that: The L-shaped protrusion (5-1) is provided with a bolt (6) on one side, which connects the main shaft (1) and the gear plate (3).

4. The snap-fit ​​structure for fixing the toothed plate of a crusher according to claim 1, characterized in that: The positioning plate (4) is detachably connected to the spindle surface (1-1).

5. The snap-fit ​​structure for fixing the toothed plate of a crusher according to claim 1, characterized in that: The L-shaped protrusions (5-1) are arranged in a staggered manner.

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