Movable jaw plate structure of jaw crusher

Abstract

The utility model discloses a movable jaw plate structure of a jaw crusher, which comprises a jaw plate body and a base plate, a V-shaped tooth groove is arranged on the jaw plate body, a positioning tooth matched with the tooth groove is arranged on the base plate, the positioning tooth is meshed with the tooth groove, and the base plate is provided with a positioning groove. An upper movable jaw plate and a lower movable jaw plate are connected to the outer surface of the base plate through bolts, jaw teeth with corrugated cross sections are arranged on the upper movable jaw plate and the lower movable jaw plate, and a through screw hole is formed in the top end of the base plate; the movable jaw plate has the advantages that the stress characteristic of the movable jaw plate is fully utilized, the jaw plate body and the base plate are connected in a simple mode that the positioning teeth are meshed with the tooth grooves, disassembly can be rapidly completed without disassembling the box body, time and labor are saved, meanwhile, the upper movable jaw plate and the lower movable jaw plate are designed in a split mode, and the disassembly is convenient. The single upper movable jaw plate or the single lower movable jaw plate can be flexibly replaced according to the specific abrasion condition of the jaw teeth, use is flexible and changeable, and jaw plate replacement is finer and more reasonable.

Description

Technical field:

[0001] The utility model relates to the technical field of coal preparation crusher equipment, in particular to a movable jaw plate structure of a jaw crusher. Background technology:

[0002] Jaw crusher is a common crushing equipment in coal preparation industry, usually used for primary crushing or coarse crushing process. The structure of jaw crusher is as follows: Figure 3 As shown, it mainly includes a vertically arranged fixed jaw plate assembly 1 and an inclined movable jaw plate assembly 2. When in use, the eccentric drive assembly 3 drives the movable jaw plate assembly 2 to move inward, thereby crushing the coal. Since there are more hard coal gangue in the initial crushing of the coal, the jaw teeth of the movable jaw plate are greatly worn, resulting in the movable jaw plate needing to be replaced every 3 to 4 months on average. To replace the movable jaw plate, it is necessary to dismantle the equipment box and remove the connecting bolts on the back of the movable jaw plate assembly 2 before the movable jaw plate can be removed. This is time-consuming and labor-intensive, and has low work efficiency. At the same time, by observing the removed movable jaw plate, it was found that the jaw teeth at the lower part of the movable jaw plate were severely worn, while the jaw teeth at the upper part of the movable jaw plate were only slightly worn and had not reached the wear limit. If the entire movable jaw plate is replaced, there will be a waste of resources and the equipment replacement cost will be high. Utility model content:

[0003] The purpose of the utility model is to provide a movable jaw plate structure of a jaw crusher to solve the technical problems in the prior art that the operation of replacing the movable jaw plate of the jaw crusher is complicated, time-consuming and labor-intensive, and there is a waste of resources when replacing the entire movable jaw plate.

[0004] The content of the utility model: A movable jaw plate structure of a jaw crusher, which includes a jaw plate body and a base plate, a V-shaped tooth groove is provided on the jaw plate body, and a positioning tooth matching the tooth groove is provided on the base plate, the positioning tooth is engaged with the tooth groove, the outer surface of the jaw plate body is fitted with the inner surface of the base plate, an upper movable jaw plate and a lower movable jaw plate are bolted to the outer surface of the base plate, the upper movable jaw plate is located above the lower movable jaw plate, and jaw teeth with a corrugated cross section are provided on both the upper and lower movable jaw plates, a through screw hole is opened on the top of the base plate, and the through screw hole extends to the positioning tooth.

[0005] Furthermore, a mounting groove is provided on the outer surface of the jaw body, and a magnet disk is installed in the mounting groove, and the magnet disk magnetically attracts the substrate.

[0006] Furthermore, the magnet disk does not contact the substrate.

[0007] Furthermore, the jaw teeth are symmetrically arranged on both side surfaces of the upper movable jaw plate and the lower movable jaw plate, and corrugated grooves matching the jaw teeth are arranged on the outer surface of the base plate, and the jaw teeth are located in the corrugated grooves.

[0008] Furthermore, a plurality of spikes are installed on the upper movable jaw plate.

[0009] Furthermore, a plurality of threaded through holes are opened on the upper movable jaw plate, and a stud is provided on the thorn cone, and the stud is screwed into the threaded through holes.

[0010] The beneficial effects of the utility model are as follows: the utility model has a simple structure, fully utilizes the stress characteristics of the movable jaw plate, and adopts a simple connection method of the positioning teeth and the tooth socket to connect the jaw plate body and the base plate. When disassembling, there is no need to disassemble the box body to complete the disassembly quickly, saving time and effort. At the same time, the upper movable jaw plate and the lower movable jaw plate are designed separately. A single upper movable jaw plate or a lower movable jaw plate can be flexibly replaced according to the specific wear conditions of the jaw teeth. It is flexible and changeable to use, the jaw plate replacement is more precise and reasonable, and the cost of equipment consumables is reduced. It is worthy of large-scale promotion and use. Description of the drawings:

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 This is an exploded view of the present utility model;

[0013] Figure 3 It is a structural diagram of a jaw crusher in the prior art;

[0014] In the figure, the fixed jaw plate assembly 1, the movable jaw plate assembly 2, the eccentric drive assembly 3, the jaw plate body 4, the base plate 5, the upper movable jaw plate 6, the lower movable jaw plate 7, the jaw teeth 8, the thorn cone 9, the corrugated groove 10, the magnet disk 11, the tooth groove 12, the positioning tooth 13, the threaded through hole 14, and the through screw hole 15. Specific implementation method:

[0015] Example 1

[0016] like Figure 1 and Figure 2 As shown, a movable jaw plate structure of a jaw crusher includes a jaw plate body 4 and a base plate 5, wherein a V-shaped tooth groove 12 is provided on the jaw plate body 4, and a positioning tooth 13 matching the tooth groove 12 is provided on the base plate 5, and the positioning tooth 13 is engaged with the tooth groove 12. The outer surface of the jaw plate body 4 is in contact with the inner surface of the base plate 5, and an upper movable jaw plate 6 and a lower movable jaw plate 7 are bolted to the outer surface of the base plate 5, and the upper movable jaw plate 6 is located above the lower movable jaw plate 7. Jaw teeth 8 with a corrugated cross section are provided on both the upper movable jaw plate 6 and the lower movable jaw plate 7, and a through screw hole 15 is opened at the top of the base plate 5, and the through screw hole 15 extends to the positioning tooth 13.

[0017] like Figure 2As shown, in order to improve the stability of the substrate 5, a mounting groove is opened on the outer surface of the jaw body 4, and a magnet disk 11 is installed in the mounting groove. The magnet disk 11 magnetically attracts the substrate 5; in order to prevent the magnet disk 11 from being damaged by friction, the magnet disk 11 does not contact the substrate 5.

[0018] like Figure 1 As shown, in order to use the upper movable jaw plate 6 and the lower movable jaw plate 7 more efficiently so that both the front and back sides can be used, the jaw teeth 8 are symmetrically arranged on both side surfaces of the upper movable jaw plate 6 and the lower movable jaw plate 7, and corrugated grooves 10 matching the jaw teeth 8 are provided on the outer surface of the base plate 5, and the jaw teeth 8 are located in the corrugated grooves 10.

[0019] When the jaw plate needs to be replaced, Figure 1 and Figure 2 As shown, it is only necessary to screw the screw into the through screw hole 15 until the screw contacts the tooth groove 12 and continue to screw to push the base plate 5 upward, and then the base plate 5 can be taken out together with the upper movable jaw plate 6 and the lower movable jaw plate 7. The upper movable jaw plate 6 and the lower movable jaw plate 7 can be replaced individually according to the actual wear situation, or the upper movable jaw plate 6 or the lower movable jaw plate 7 can be turned over for use.

[0020] Example 2:

[0021] Example 2 adds a spike cone 9 on the basis of Example 1 to further improve the crushing efficiency of the jaw crusher. The specific structure is as follows: Figure 2 As shown, a plurality of spikes 9 are installed on the upper movable jaw plate 6. In order to facilitate the removal and replacement of the spikes 9, a plurality of threaded through holes 14 are opened on the upper movable jaw plate 6. Studs are provided on the spikes 9, and the studs are screwed into the threaded through holes 14.

[0022] During specific operation, since the crushing position of the jaw crusher is mainly concentrated on the position of the lower movable jaw plate 7, the upper movable jaw plate 6 is mainly used to pre-crush a small amount of larger coal blocks, and the thorn cone 9 can quickly pierce the large-volume coal blocks to prevent the accumulation of large coal blocks, thereby further improving the crushing efficiency.

[0023] The above are only preferred examples of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A movable jaw plate structure of a jaw crusher, characterized by: The invention comprises a jaw plate body (4) and a base plate (5); a V-shaped tooth groove (12) is provided on the jaw plate body (4); a positioning tooth (13) matching the tooth groove (12) is provided on the base plate (5); the positioning tooth (13) is engaged with the tooth groove (12); the outer surface of the jaw plate body (4) is in contact with the inner surface of the base plate (5); an upper movable jaw plate (6) and a lower movable jaw plate (7) are bolted to the outer surface of the base plate (5); the upper movable jaw plate (6) is located above the lower movable jaw plate (7); jaw teeth (8) with a corrugated cross section are provided on both the upper movable jaw plate (6) and the lower movable jaw plate (7); a through screw hole (15) is provided at the top end of the base plate (5); the through screw hole (15) extends to the positioning tooth (13).

2. The movable jaw plate structure of a jaw crusher according to claim 1, characterized in that: An installation groove is provided on the outer surface of the jaw plate body (4), a magnet disk (11) is installed in the installation groove, and the magnet disk (11) magnetically attracts the base plate (5).

3. The movable jaw plate structure of a jaw crusher according to claim 2, characterized in that: The magnet disk (11) does not contact the substrate (5).

4. The movable jaw plate structure of a jaw crusher according to claim 1, characterized in that: The jaw teeth (8) are symmetrically arranged on both side surfaces of the upper movable jaw plate (6) and the lower movable jaw plate (7), and a corrugated groove (10) matching the jaw teeth (8) is arranged on the outer surface of the base plate (5), and the jaw teeth (8) are located in the corrugated groove (10).

5. The movable jaw plate structure of a jaw crusher according to claim 1, characterized in that: A plurality of thorn cones (9) are installed on the upper movable jaw plate (6).

6. The movable jaw plate structure of a jaw crusher according to claim 5, characterized in that: A plurality of threaded through holes (14) are provided on the upper movable jaw plate (6), and a stud is provided on the thorn cone (9), and the stud is screwed into the threaded through hole (14).

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