CN210875478U - Wear-resistant lining plate of mine crusher - Google Patents
Wear-resistant lining plate of mine crusher Download PDFInfo
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- CN210875478U CN210875478U CN201921855030.5U CN201921855030U CN210875478U CN 210875478 U CN210875478 U CN 210875478U CN 201921855030 U CN201921855030 U CN 201921855030U CN 210875478 U CN210875478 U CN 210875478U
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- lining plate
- inverted pyramid
- hole
- groove
- wear
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Abstract
The utility model relates to a wear-resistant lining plate of a mine crusher, belonging to the field of crushing equipment and comprising a lining plate; a plurality of inverted pyramid grooves are arranged on the crushing working surface of the lining plate; trapezoidal tooth blocks for crushing materials are formed between the adjacent inverted pyramid grooves; the lining plate is provided with a sinking groove through hole for connecting an external bolt with a movable jaw plate on the crusher; the sink groove through hole is positioned in the inverted pyramid groove; a plurality of rib plates are arranged in the inverted pyramid groove and positioned at the periphery of the sink groove through hole; the rib plates are flush with the end faces of the grooves of the inverted pyramid. The strength of the tooth surface is increased, the stress concentration is reduced, the service life of the lining plate on the lining plate is prolonged, and the crushing efficiency is improved; meanwhile, the inverted pyramid groove can generate bending stress and extrusion force on the material, so that the material is further crushed, and the crushing effect is improved; in addition, the bolt head is sunken into the stepped hole, and the protective effect on the bolt head is achieved through rib plates distributed on the periphery of the stepped hole.
Description
Technical Field
The utility model relates to a mining equipment field, more specifically relates to a wear-resisting welt of mine breaker.
Background
The working mechanism of the jaw crusher is composed of a working cavity formed by a fixed jaw and a movable jaw, the fixed jaw and the movable jaw bear huge material friction and are easy to wear, in order to protect the jaws, wear-resistant lining plates are generally arranged on the surfaces of the fixed jaw and the movable jaw, the lining plate of the existing jaw crusher is common high-manganese cast steel ZGMn13CrMo, the thickness is 170 mm, in the process of crushing iron ore by the jaw crusher, the tooth shape of the lining plate 100 participating in crushing is generally triangular or circular arc, and the tooth shape of the lining plate is generally formed by slotting along the length direction, although the triangular tooth has good crushing effect, the stress distribution is larger, and the lining plate is easy to damage; the arc-shaped teeth have high surface strength and small stress distribution, but are in point contact with the crushed materials, so that the crushing efficiency is low; in addition, when the lining plate is connected with the fixed jaw or the movable jaw by adopting a bolt, the head of the bolt is easily crushed by the lump material, and the later replacement of the lining plate is influenced. Therefore, effective solutions to solve the above problems need to be proposed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the wear-resistant lining plate of the mine crusher increases the tooth surface strength, reduces stress concentration, prolongs the service life of the lining plate on the lining plate and improves the crushing efficiency; in addition, the bolt head is sunken into the stepped hole, and the protective effect on the bolt head is achieved through rib plates distributed on the periphery of the stepped hole.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a wear-resistant lining plate of a mine crusher, which comprises a lining plate;
a plurality of inverted pyramid grooves are formed in the crushing working surface of the lining plate;
trapezoidal tooth blocks for crushing materials are formed between the adjacent inverted pyramid grooves;
the lining plate is provided with a sinking groove through hole for connecting an external bolt with a movable jaw plate on the crusher;
the sinking groove through hole is positioned in the inverted pyramid groove; a plurality of rib plates are arranged in the inverted pyramid groove and positioned at the periphery of the sink groove through hole; the rib plates are flush with the end faces of the grooves of the inverted pyramid.
Optionally, the sinking groove through holes are positioned at the peripheral end parts of the lining plate; the size of an opening for accommodating an external bolt on the sinking groove through hole is smaller than the size of a connecting line between the bottom surfaces of the adjacent trapezoid tooth blocks.
Optionally, the sharp corners of the trapezoidal tooth blocks are provided with arc chamfers.
Optionally, the number of the rib plates is six, and the rib plates are diffused outwards along the center of the sink through hole.
Optionally, the angle between the inclined plane of the inverted pyramid groove and the vertical line is 15-20 °.
The utility model has the advantages that:
the wear-resistant lining plate of the mine crusher increases the tooth surface strength, reduces stress concentration, prolongs the service life of the lining plate on the lining plate and improves the crushing efficiency; meanwhile, the inverted pyramid groove can generate bending stress and extrusion force on the material, so that the material is further crushed, and the crushing effect is improved; in addition, the bolt head is sunken into the stepped hole, and the protective effect on the bolt head is achieved through rib plates distributed on the periphery of the stepped hole.
Drawings
Fig. 1 is a schematic top view of a wear-resistant lining plate of a mine crusher according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a wear-resistant lining plate of a mine crusher according to a specific embodiment of the present invention;
FIG. 3 is an enlarged schematic structural view of the point A according to the embodiment of the present invention;
fig. 4 is a schematic view of the angle relationship between the inverted pyramid grooves according to the embodiment of the present invention.
In the figure:
100. a liner plate; 101. crushing a working face; 102. an inverted pyramid groove; 103. a trapezoidal tooth block; 104. sinking the trough through hole; 105. a rib plate.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The utility model provides a wear-resistant lining plate of a mine crusher, which is shown in figures 1-4; comprises a lining plate 100;
a crushing working surface 101 of the lining plate 100 is provided with a plurality of inverted pyramid grooves 102; a trapezoidal tooth block 103 for crushing materials is formed between the adjacent inverted pyramid grooves 102;
a sinking groove through hole 104 for connecting an external bolt with a movable jaw plate on the crusher is arranged on the lining plate 100;
the sink through hole 104 is positioned in the inverted pyramid groove 102; a plurality of rib plates 105 are arranged in the inverted pyramid groove 102 and positioned at the periphery of the sink through hole 104; the rib plate 105 is flush with the end face of the inverted pyramid groove 102.
Further, the sink through holes 104 are located at the peripheral end of the lining plate 100; the size of an opening for accommodating an external bolt on the counter sink through hole 104 is smaller than the size of a connecting line between the bottom surfaces of the adjacent trapezoidal tooth blocks 103.
Further, the sharp corners of the trapezoidal tooth block 103 are provided with arc chamfers. Avoiding stress concentration at the sharp corner.
Furthermore, the number of the rib plates 105 is six, and the rib plates 105 are outwards diffused along the center of the sink through hole 104; the strength and rigidity of the liner 100 are improved while the external bolts are well protected.
Further, the angle of the inclined plane of the inverted pyramid-shaped groove 31 to the vertical line is 15 ° to 20 °.
The specific working process of the embodiment is that the lining plates 100 are arranged on the movable jaw plate and the fixed jaw plate, the movable jaw plate is driven by the eccentric shaft to reciprocate, when the movable jaw plate approaches the lining plates 100 on the fixed jaw plate, the movable jaw plate and the fixed jaw plate produce extrusion, impact and crushing effects on contacted materials, and the particle size of the materials is reduced; when the movable jaw plate is far away from the fixed lining plate 100, the materials fall due to self gravity and complex movement of the movable lining plate 100, extrusion and grinding phenomena are generated between the lining plate 100 and the materials, the movement of the lining plate 100 in the horizontal direction extrudes crushing force to the lining plate 100, and the action of the lining plate 100 in the vertical direction enables the materials to fall and simultaneously grind the materials. A plurality of inverted pyramid grooves 102 are arranged on a crushing working surface 101 of a lining plate 100; a trapezoidal tooth block 103 for crushing materials is formed between the adjacent inverted pyramid grooves 102; the strength of the root of the lining plate 100 is high, meanwhile, the materials are crushed by linear contact extrusion with the trapezoidal tooth block 103, the more easily the materials are crushed, the crushing effect is good, the tooth crest intervals of the trapezoidal tooth block 103 are reasonably distributed, the bending stress of the tooth edge of the trapezoidal tooth block 103 is reduced under the action of ensuring the crushing effect and the tooth surface strength, and the strength and the rigidity of the lining plate 100 are improved; meanwhile, the inverted pyramid groove 102 can generate bending stress and extrusion force on the material to further crush the material, so that the crushing effect is improved; a plurality of rib plates 105 are arranged in the inverted pyramid groove 102 and around the sink through hole 104; rib plate 105 and inverted pyramid recess 102 terminal surface looks parallel and level have avoided the direct outside bolt of striking of material, have reduced the damaged probability of outside bolt, ensure the convenience that the later stage welt was changed with.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (5)
1. A wear-resistant lining plate of a mine crusher, which comprises a lining plate (100); the method is characterized in that:
a plurality of inverted pyramid grooves (102) are arranged on a crushing working surface (101) of the lining plate (100); a trapezoidal tooth block (103) for crushing materials is formed between the adjacent inverted pyramid grooves (102);
a sinking groove through hole (104) for connecting an external bolt with a movable jaw plate on the crusher is formed in the lining plate (100);
the sink through hole (104) is positioned in the inverted pyramid groove (102); a plurality of rib plates (105) are arranged in the inverted pyramid groove (102) and positioned at the periphery of the sink through hole (104); the rib plates (105) are flush with the end faces of the inverted pyramid grooves (102).
2. The wear-resistant lining plate of the mine crusher as claimed in claim 1, wherein:
the sink through holes (104) are positioned at the peripheral end parts of the lining plate (100); the size of an opening for accommodating an external bolt on the sinking groove through hole (104) is smaller than the size of a connecting line between the bottom surfaces of the adjacent trapezoidal tooth blocks (103).
3. The wear-resistant lining plate of the mine crusher as claimed in claim 1, wherein:
and arc chamfers are arranged at the sharp corners of the trapezoidal tooth blocks (103).
4. The wear-resistant lining plate of the mine crusher as claimed in claim 1, wherein:
the number of the rib plates (105) is six, and the rib plates (105) are outwards diffused along the center of the sink through hole (104).
5. The wear-resistant lining plate of the mine crusher as claimed in claim 1, wherein:
the angle between the inclined plane of the inverted pyramid groove (102) and the vertical line is 15-20 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855030.5U CN210875478U (en) | 2019-10-31 | 2019-10-31 | Wear-resistant lining plate of mine crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855030.5U CN210875478U (en) | 2019-10-31 | 2019-10-31 | Wear-resistant lining plate of mine crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210875478U true CN210875478U (en) | 2020-06-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921855030.5U Active CN210875478U (en) | 2019-10-31 | 2019-10-31 | Wear-resistant lining plate of mine crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210875478U (en) |
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2019
- 2019-10-31 CN CN201921855030.5U patent/CN210875478U/en active Active
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