Jaw plate capable of changing meshing angle of jaw crusher

Abstract

The utility model discloses a jaw plate capable of changing a meshing angle of a jaw crusher. The jaw plate comprises a movable jaw plate arranged on a movable jaw of the jaw crusher and a fixed jaw lining plate arranged on a rack, a wedge block for changing a meshing angle between the movable jaw plate and the fixed jaw lining plate is arranged between the fixed jaw lining plate and the rack; a wedge-shaped groove for the wedge block to slide is formed in the bottom of one surface, positioned on the rack, of the fixed jaw lining plate; according to the utility model, the meshing angle of the jaw crusher can be flexibly adjusted according to the characteristics of different materials, so that the jaw crusher can achieve a better crushing effect when treating various materials, the universality and adaptability of equipment are improved, the materials can be subjected to more reasonable extrusion force and shearing force in a crushing cavity by adjusting the meshing angle, and the crushing effect is improved. The over-powder crushing phenomenon of the materials is reduced, and the single-time crushing effect is improved, so that the crushing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of jaw crusher technology, specifically a jaw plate that can change the meshing angle of a jaw crusher. Background Technology

[0002] Jaw crushers, widely used in mining, building materials, and other industries, play a crucial role in material crushing operations. Their working principle is based on the mechanical principle of "compression crushing." Material is fed into the upper feed inlet and falls into the crushing chamber formed by the moving and fixed jaws. The moving jaw periodically approaches and moves away from the fixed jaw, squeezing, rubbing, and grinding the material during this process, resulting in crushing and discharge from the discharge outlet. During the operation of a jaw crusher, the meshing angle is a very important parameter. The meshing angle refers to the geometric angle formed between the moving and fixed jaw plates when crushing ore. The theoretical maximum value of this parameter is 22°, but in practical engineering applications, it is usually controlled within the range of 18-22°. The meshing angle directly affects the material crushing effect and equipment performance: a small angle may increase the discharge opening size but reduce the crushing ratio, while an excessive angle will cause material to surge upwards and lead to a decrease in production efficiency. The design of existing jaw crusher jaw plates primarily considers the wear resistance and toughness of the material. The impact of the meshing angle, a crucial parameter, on the crusher has not been adequately emphasized or utilized in jaw plate design improvements. In practical use, the structural design of most jaw plates makes it difficult to flexibly adjust the meshing angle. This prevents the crusher from promptly adjusting to the optimal meshing angle when dealing with materials of different properties and particle sizes, hindering further efficiency improvements and failing to meet the growing production demands and the industry's trend towards high efficiency and energy conservation. Under current technological conditions, designing a jaw plate capable of altering the meshing angle to achieve optimal crushing efficiency and reduce energy consumption under different operating conditions has become a pressing technical problem in this field. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides a jaw plate that can change the meshing angle of a jaw crusher, the purpose of which is to solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a jaw plate capable of changing the meshing angle of a jaw crusher, comprising: a movable jaw plate disposed on the movable jaw of the jaw crusher and a fixed jaw liner on the frame; a wedge block for changing the meshing angle between the movable jaw plate and the fixed jaw liner is disposed between the fixed jaw liner and the frame.

[0005] Furthermore, the bottom side of the fixed jaw liner is provided with a wedge-shaped groove for sliding the wedge block.

[0006] Furthermore, both the fixed jaw liner and the frame are provided with two pairs of bolt holes, and the bolt holes on the fixed jaw liner and the frame correspond to each other.

[0007] Furthermore, the upper screw of the fixed jaw is inserted into the corresponding bolt holes on the fixed jaw liner and the upper part of the frame, and the lower screw of the fixed jaw is inserted into the corresponding bolt holes on the fixed jaw liner and the lower part of the frame, thereby fixing the fixed jaw liner and the frame.

[0008] Furthermore, the wedge is provided with strip-shaped through holes, and the arrangement direction of the strip-shaped through holes is the same as that of the wedge; the number and position of the strip-shaped through holes correspond to the bolt holes on the fixed jaw liner and the frame.

[0009] Furthermore, the lower screw of the fixed jaw passes sequentially through the bolt hole under the fixed jaw liner, the strip-shaped through hole on the wedge, and the bolt hole under the frame, thereby fixing the fixed jaw liner, the frame, and the wedge.

[0010] Furthermore, the fixed jaw liner has several vertically arranged tooth grooves on the side facing the movable jaw plate.

[0011] Furthermore, the fixed jaw liner is provided with several weight-reducing grooves on the side opposite to the movable jaw plate.

[0012] Compared with existing technologies, this utility model has the following advantages: This utility model can flexibly adjust the meshing angle of the jaw crusher according to the characteristics of different materials, so that the jaw crusher can achieve a better crushing effect when processing various materials, improving the versatility and adaptability of the equipment. By adjusting the meshing angle, the material can be subjected to more reasonable extrusion and shearing forces in the crushing chamber, reducing the phenomenon of over-crushing of materials, improving the single crushing effect, and thus improving the crushing effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the strip-shaped through-hole structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the tooth groove structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the weight reduction groove structure of this utility model.

[0017] In the diagram, 1 is a wedge groove; 2 is a bolt hole; 3 is a weight reduction groove; 4 is a tooth groove; 5 is a fixed jaw liner; 6 is a wedge block; 7 is a strip-shaped through hole; 8 is a movable jaw plate; 9 is an upper screw of the fixed jaw; 10 is a lower screw of the fixed jaw; 11 is a frame; and 12 is a meshing angle. Detailed Implementation

[0018] like Figure 1 As shown, the present invention provides a technical solution: a jaw plate that can change the meshing angle of a jaw crusher, comprising: a movable jaw plate 8 disposed on the movable jaw of the jaw crusher and a fixed jaw liner 5 disposed on the frame 11; a wedge block 6 is disposed between the fixed jaw liner 5 and the frame 11 for changing the meshing angle 12 between the movable jaw plate 8 and the fixed jaw liner 5.

[0019] The fixed jaw liner 5 has a wedge-shaped groove 1 at the bottom of one side of the frame 11 to facilitate the sliding of the wedge block 6; the side of the wedge block 6 in the wedge-shaped groove 1 is an inclined surface.

[0020] The fixed jaw liner 5 and the frame 11 are provided with two pairs of bolt holes 2, and the bolt holes 2 on the fixed jaw liner 5 and the frame 11 correspond to each other; the upper screw 9 of the fixed jaw is inserted from the corresponding bolt holes 2 on the upper part of the fixed jaw liner 5 and the frame 11, and the lower screw 10 of the fixed jaw is inserted from the corresponding bolt holes 2 on the lower part of the fixed jaw liner 5 and the frame 11, thereby fixing the fixed jaw liner 5 and the frame 11.

[0021] like Figure 2 As shown, the wedge 6 is provided with a strip-shaped through hole 7, and the arrangement direction of the strip-shaped through hole 7 is the same as that of the wedge 6. The number and position of the strip-shaped through holes 7 correspond to the bolt holes 2 under the fixed jaw liner 5 and the frame 11. The fixed jaw lower screw 10 passes through the bolt holes 2 under the fixed jaw liner 5, the strip-shaped through hole 7 on the wedge 6 and the bolt holes 2 under the frame 11 in sequence, thereby fixing the fixed jaw liner 5, the frame 11 and the wedge 6.

[0022] By loosening the upper fixed jaw screw 9 and the lower fixed jaw screw 10, the wedge block 6 is pushed to slide along the wedge groove 1 on the fixed jaw liner 5 (the strip-shaped through hole 7 ensures that the wedge block 6 will not interfere with the lower fixed jaw screw 10 when sliding). By changing the position of the wedge block 6 between the fixed jaw liner 5 and the frame 11, the meshing angle 12 between the moving jaw plate 8 and the fixed jaw liner 5 can be changed. After selecting a suitable meshing angle 12, the upper fixed jaw screw 9 and the lower fixed jaw screw 10 can be fixed.

[0023] like Figure 3 As shown, the fixed jaw liner 5 has several vertically arranged tooth grooves 4 on the side facing the movable jaw plate 8.

[0024] like Figure 4 As shown, the fixed jaw liner 5 is provided with several weight reduction grooves 3 on the side opposite to the movable jaw plate 8.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A jaw plate with an adjustable meshing angle for a jaw crusher, characterized in that, include: The movable jaw plate on the moving jaw of the jaw crusher and the fixed jaw liner on the frame; A wedge block is provided between the fixed jaw liner and the frame to change the meshing angle between the moving jaw plate and the fixed jaw liner.

2. The jaw plate for a jaw crusher with adjustable meshing angle according to claim 1, characterized in that: The bottom side of the fixed jaw liner is provided with a wedge-shaped groove for sliding the wedge block.

3. A jaw plate with an adjustable meshing angle for a jaw crusher according to claim 2, characterized in that: Both the fixed jaw liner and the frame are provided with two pairs of bolt holes, and the bolt holes on the fixed jaw liner and the frame correspond to each other.

4. A jaw plate with an adjustable meshing angle for a jaw crusher according to claim 3, characterized in that: The upper screw of the fixed jaw is inserted into the corresponding bolt holes on the fixed jaw liner and the upper part of the frame, and the lower screw of the fixed jaw is inserted into the corresponding bolt holes on the lower part of the fixed jaw liner and the lower part of the frame, thereby fixing the fixed jaw liner and the frame.

5. A jaw plate with an adjustable meshing angle for a jaw crusher according to claim 4, characterized in that: The wedge is provided with strip-shaped through holes, and the arrangement direction of the strip-shaped through holes is the same as that of the wedge; the number and position of the strip-shaped through holes correspond to the bolt holes on the fixed jaw liner and the frame.

6. A jaw plate with an adjustable meshing angle for a jaw crusher according to claim 5, characterized in that: The lower screw of the fixed jaw passes through the bolt hole under the fixed jaw liner, the strip-shaped through hole on the wedge, and the bolt hole under the frame in sequence, thus fixing the fixed jaw liner, the frame, and the wedge.

7. A jaw plate with an adjustable meshing angle for a jaw crusher according to claim 6, characterized in that: The fixed jaw liner has several vertically arranged tooth grooves on the side facing the movable jaw plate.

8. A jaw plate with an adjustable meshing angle for a jaw crusher according to claim 7, characterized in that: The fixed jaw liner is provided with several weight-reducing grooves on the side opposite to the movable jaw plate.

Images