A barite powder jaw crushing device for mining and processing

Abstract

The present invention relates to the technical field of ore crushing, in particular to a barite powder jaw crushing device for mining and processing, which includes a frame. An eccentric shaft is rotatably connected to the top of the frame. A moving jaw frame is arranged inside the frame. The top end of the moving jaw frame is rotatably connected to the central position of the eccentric shaft. A fixed jaw frame is movably connected inside the frame. Crushing jaw plates are arranged on one side of the moving jaw frame and the fixed jaw frame adjacent to each other. Through the action of the fractal contact mechanism, multiple contact strips of the present invention move in cooperation according to the transverse profile of barite ore, so that the transverse contact positions of the multiple contact strips and the barite ore generate profile adaptation, thereby increasing the transverse contact area between the barite ore and the corresponding contact strips. The multiple contact strips can perform corresponding fractal contact according to the size and shape of multiple barite ores, improving the crushing effect and crushing rate of barite ore.

Description

Technical Field

[0001] The present invention relates to the technical field of ore crushing, and particularly relates to a barite powder jaw crushing device for mining and processing. Background Art

[0002] The jaw crusher is commonly known as the jaw breaker. It consists of two jaw plates, a moving jaw and a stationary jaw, forming a crushing cavity, and is a crusher that simulates the movement of the two jaws of an animal to complete the material crushing operation. It is widely used in various industries such as mining and smelting, building materials, highways, railways, water conservancy, and chemical industries for the crushing of various ores and large pieces of materials.

[0003] The patent document with the publication number CN118142613B discloses a jaw crusher for barite powder mining and processing, including a first base; a support plate is fixedly installed at the top of the first base, a fixed jaw plate is fixedly installed on one side of the support plate, a moving jaw plate is installed on one side of the fixed jaw plate, an eccentric shaft is fixedly installed at the top of the moving jaw plate, a first driving wheel is fixedly installed at one end of the eccentric shaft, a convex block belt is sleeved on the outer wall of the first driving wheel, an adjusting assembly is fixedly installed on the outer wall of the second driving wheel, and a motor is fixedly installed on one side of the second driving wheel.

[0004] In the prior art, when processing barite powder, the barite ore is usually initially crushed by a jaw crusher and further processed by means such as grinding and flotation. When jaw crushing the barite ore, the barite ore is crushed between the moving jaw and the stationary jaw by the reciprocating movement of the moving jaw. When the volume of the barite ore is large, the contact area between the barite ore and the surface of the moving jaw is small and relative sliding is likely to occur, so that the barite ore always remains above the moving jaw and the stationary jaw and cannot be crushed by extrusion. And since the distances at various positions between the moving jaw and the stationary jaw are always fixed, when multiple barite ores of different sizes are crushed simultaneously, it is difficult for the moving jaw and the stationary jaw to effectively crush the barite ore with a smaller volume, thus reducing the crushing effect and crushing uniformity of the barite ore. Summary of the Invention

[0005] The purpose of the present invention is to solve the drawbacks existing in the prior art, and a barite powder jaw crushing device for mining and processing is proposed.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a barite powder jaw crushing device for mining and processing, including a frame, an eccentric shaft is rotatably connected to the top of the frame, a moving jaw frame is arranged inside the frame, the top end of the moving jaw frame is rotatably connected to the central position of the eccentric shaft, a fixed jaw frame is movably connected inside the frame, crushing jaw plates are arranged on the adjacent sides of the moving jaw frame and the fixed jaw frame, a movable constraint mechanism is connected to the moving jaw frame, and a driving mechanism is connected to the eccentric shaft;

[0007] The crushing jaw plate is connected with a disassembly and fixing mechanism. A plurality of contact strips are arranged on one side of each of the two adjacent crushing jaw plates. A fractal contact mechanism is connected between the contact strip and the corresponding crushing jaw plate, and a fitting crushing mechanism is connected to each contact strip.

[0008] Preferably, the fractal contact mechanism includes a plurality of strip-shaped grooves which are distributed and opened on the two crushing jaw plates. An activity groove is opened on one side of the two crushing jaw plates away from each other. One side of each contact strip extends along the corresponding strip-shaped groove into the corresponding activity groove and is fixedly connected with a limit baffle. Fixing grooves are opened on one side of the moving jaw frame and the fixed jaw frame adjacent to each other, and strip-shaped shells are fixedly connected inside the fixing grooves. One side of each limit baffle is fixedly connected with an activity strip, and one end of the activity strip is located inside the corresponding strip-shaped shell. The inside of the strip-shaped shell is slidably sealed through the corresponding plurality of activity strips.

[0009] Preferably, the fitting crushing mechanism includes a plurality of arc-shaped grooves which are all opened on one side of the contact strip. Arc-shaped blocks are arranged inside the arc-shaped grooves. A contact plane is opened on one side of the arc-shaped block away from the arc-shaped groove. Arc-shaped slide rails are fixedly connected inside the arc-shaped grooves. A slide groove is opened on the arc-shaped block, and the arc-shaped slide rail is slidably connected inside the slide groove. A slide limiting mechanism is connected to the arc-shaped block.

[0010] Preferably, the slide limiting mechanism includes a slide notch which is opened at the central position of the arc-shaped slide rail. A threaded hole is opened on the arc-shaped block, and a flat head bolt is threadedly connected inside the threaded hole. One end of the flat head bolt is located inside the slide notch.

[0011] Preferably, the disassembly and fixing mechanism includes two groups of fixing bolts which are respectively located on one side of the two adjacent crushing jaw plates. A plurality of through holes are opened on each crushing jaw plate, and one end of each fixing bolt is respectively located inside the corresponding through hole. One ends of the two groups of fixing bolts respectively penetrate through the moving jaw frame and the fixed jaw frame and are threadedly connected with fixing nuts. The number of each group of fixing bolts is four.

[0012] Preferably, the driving mechanism includes a motor which is fixedly installed on the frame. A transmission wheel is fixedly connected to the output shaft of the motor. Flywheels are fixedly connected to both ends of the eccentric shaft. A plurality of transmission belts are drivingly connected between the transmission wheel and the corresponding flywheel.

[0013] Preferably, the movable constraint mechanism includes a mounting frame fixedly connected to one side inside the frame. A limiting plate is fixedly connected to the bottom of the mounting frame, and a movable through-hole is formed in the limiting plate. A connecting frame is fixedly connected to the bottom of the movable jaw frame on the side away from the fixed jaw frame. A pull rod is rotatably connected to the connecting frame. One end of the pull rod extends to one side of the limiting plate along the movable through-hole and is fixedly connected to a fixing plate. A spring is arranged between the fixing plate and the limiting plate. The spring is sleeved on the pull rod, and an elastic adjustment mechanism is connected to the spring.

[0014] Preferably, the elastic adjustment mechanism includes a fixing ring fixedly connected to the side of the fixing plate close to the limiting plate. The fixing ring is located between the pull rod and the spring. An inclined surface movable ring is sleeved on the fixing ring. One end of the inclined surface movable ring is fixedly connected to a contact ring. One end of the spring is in contact with the contact ring. A plurality of limiting grooves are formed in the inclined end of the inclined surface movable ring. A limiting strip is fixedly connected to the surface of the fixing ring, and one end of the limiting strip is located inside the corresponding limiting groove.

[0015] Preferably, an elbow plate seat is fixedly installed inside the mounting frame. A first placement groove is formed on one side of the elbow plate seat, and a second placement groove is formed in the movable jaw frame. An installation elbow plate is arranged between the first placement groove and the second placement groove.

[0016] Preferably, a blanking groove is formed at the bottom of the frame, and the inclined surface movable ring is located above the blanking groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the action of the fractal contact mechanism, multiple contact strips move cooperatively according to the transverse profile of barite ore, enabling the transverse contact positions between the multiple contact strips and the barite ore to produce profile adaptation, thereby increasing the transverse contact area between the barite ore and the corresponding contact strips. When multiple barite ores are broken, the multiple contact strips can perform corresponding fractal contact according to the size and shape of the multiple barite ores, improving the crushing effect and crushing rate of the barite ore.

[0019] 2. Through the free rolling of metal balls inside the strip-shaped housing for active filling, until the space inside the strip-shaped housing is completely filled by one end of multiple movable strips and the metal balls, the movable strips cannot move. This enables the multiple contact strips to move cooperatively according to the transverse profile of the barite ore during the contact process with the barite ore, thereby increasing the transverse contact area between the contact strips and the barite ore, improving the crushing effect and crushing rate when multiple barite ores are broken simultaneously, and reducing the omission generated during the crushing process.

[0020] 3. The contact plane on the arc-shaped block contacts the surface of the barite ore. During the contact process, the sliding groove on the arc-shaped block slides along the arc-shaped slide rail, causing the arc-shaped block to move inside the arc-shaped groove. As a result, the contact plane on the arc-shaped block conforms to the surface contour of the barite ore during the contact process, increasing the longitudinal contact area and contact friction with the barite ore, reducing the sliding generated during the crushing of the barite ore, and improving the crushing effect of the barite ore.

[0021] 4. One end of the limit bar disengages from the corresponding limit groove, and then the inclined plane movable ring is rotated to synchronously rotate the multiple limit grooves on the inclined end, turning the limit groove to be limited to the position of one end of the limit bar. Then, the inclined plane movable ring is released, and one end of the limit bar enters the corresponding limit groove. By rotating the inclined plane movable ring and using one end of the limit bar to enter the corresponding limit groove, the elastic compression degree of the spring is adjusted by using the inclined end of the inclined plane movable ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the first structural schematic diagram of the present invention;

[0023] Figure 2 is the partial structural sectional schematic diagram of the present invention (the frame is sectioned);

[0024] Figure 3 is the present invention Figure 2 the enlarged schematic diagram of the structure at A in;

[0025] Figure 4 is the present invention Figure 2 the enlarged schematic diagram of the structure at B in;

[0026] Figure 5 is the sectional schematic diagram of the mating structure of the fixed jaw frame and the crushing jaw plate of the present invention;

[0027] Figure 6 is the present invention Figure 5 the enlarged schematic diagram of the structure at C in;

[0028] Figure 7 is the schematic diagram of the mating structure of the crushing jaw plate and the contact strip of the present invention;

[0029] Figure 8 is the present invention Figure 7 the enlarged schematic diagram of the structure at D in;

[0030] Figure 9 is the sectional schematic diagram of the mating structure of the contact strip and the contact plane of the present invention;

[0031] Figure 10 is the present invention Figure 9 the enlarged schematic diagram of the structure at E in;

[0032] Figure 11 Schematic diagram of the cooperation structure of the fixing plate, fixing ring and inclined surface movable ring of the present invention;

[0033] Figure 12 Schematic diagram of the contact strip structure of the present invention;

[0034] Figure 13 Second schematic diagram of the present invention;

[0035] Figure 14 For the present invention Figure 13 Enlarged schematic diagram of the structure at position F in the present invention.

[0036] In the figure: frame 1, eccentric shaft 2, moving jaw frame 3, fixed jaw frame 4, crushing jaw plate 5, contact strip 6, strip-shaped groove 7, movable groove 8, limit baffle 9, fixed groove 10, strip-shaped housing 11, movable strip 12, arc-shaped groove 13, arc-shaped block 14, contact plane 15, arc-shaped slide rail 16, chute 17, sliding notch 18, threaded hole 19, flat head bolt 20, fixing bolt 21, through hole 22, fixing nut 23, motor 24, transmission wheel 25, flywheel 26, transmission belt 27, installation frame 28, limit plate 29, movable through hole 30, connecting frame 31, pull rod 32, fixing plate 33, spring 34, fixing ring 35, inclined surface movable ring 36, contact ring 37, limit groove 38, limit strip 39, toggle plate seat 40, first placement groove 41, second placement groove 42, installation toggle plate 43, blanking groove 44. Specific embodiments

[0037] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0038] As Figures 1 to 14 shown, a barite powder jaw crusher for mining and processing includes a frame 1, the top of the frame 1 is rotatably connected with an eccentric shaft 2, the inside of the frame 1 is provided with a moving jaw frame 3, the top end of the moving jaw frame 3 is rotatably connected to the center of the eccentric shaft 2, the inside of the frame 1 is movably connected with a fixed jaw frame 4, both adjacent sides of the moving jaw frame 3 and the fixed jaw frame 4 are provided with crushing jaw plates 5, the moving jaw frame 3 is connected with a movable restraint mechanism, and the eccentric shaft 2 is connected with a driving mechanism;

[0039] A disassembly and fixing mechanism is connected to the crushing jaw plate 5. A plurality of contact strips 6 are arranged on one side of two adjacent crushing jaw plates 5. A fractal contact mechanism is connected between the contact strip 6 and the corresponding crushing jaw plate 5. A fitting crushing mechanism is connected to each contact strip 6. During operation, in the prior art, when processing barite powder, a jaw crusher is usually used to initially crush barite ore, and further processing is carried out through methods such as grinding and flotation. When jaw crushing barite ore, the barite ore is crushed between the moving jaw and the static jaw by the reciprocating movement of the moving jaw. When the volume of the barite ore is relatively large, the contact area between the barite ore and the surface of the moving jaw is small and relative sliding is likely to occur, so that the barite ore always remains above the moving jaw and the static jaw and cannot be extruded and crushed. Moreover, since the distances at various positions between the moving jaw and the static jaw are always fixed, when multiple barite ores are crushed simultaneously and have different sizes, it is difficult for the moving jaw and the static jaw to effectively crush the barite ore with a smaller volume, thereby reducing the crushing effect and crushing uniformity of the barite ore. The technical solution of the present invention can solve the above problems, and the specific working method is as follows: The barite ore to be crushed is continuously conveyed between the two crushing jaw plates 5. The eccentric shaft 2 rotates eccentrically along the rotation connection of the frame 1 under the action of the driving mechanism, so that the moving jaw frame 3 moves in cooperation along the rotation connection of the eccentric shaft 2. And the moving jaw frame 3 is constrained to move under the action of the active constraint mechanism, so that the moving jaw frame 3 reciprocates by the eccentric rotation of the eccentric shaft 2. When the barite ore is located between the moving jaw frame 3 and the fixed jaw frame 4, the crushing jaw plates 5 on the adjacent sides of the moving jaw frame 3 and the fixed jaw frame 4 form a crushing cavity, and the barite ore is contacted by a plurality of contact strips 6. During the contact process, under the action of the fractal contact mechanism, the plurality of contact strips 6 move in cooperation according to the transverse profile of the barite ore, so that the transverse contact positions between the plurality of contact strips 6 and the barite ore produce profile adaptation, thereby increasing the transverse contact area between the barite ore and the corresponding contact strips 6. When a plurality of barite ores are crushed, the plurality of contact strips 6 can perform corresponding fractal contact according to the sizes and shapes of the plurality of barite ores, improving the crushing effect and crushing rate of the barite ore. During the process of the contact strips 6 on the two crushing jaw plates 5 extruding and crushing the barite ore, the longitudinal contact area between a single contact strip 6 and the barite ore is increased under the action of the fitting crushing mechanism, and corresponding fitting is carried out according to the longitudinal profile of the barite ore, thereby reducing the relative sliding between the barite ore and the contact strip 6 during the crushing process and increasing the contact friction force, enabling the barite ore with a larger volume to smoothly enter between the two crushing jaw plates 5, and reducing the situation that the barite ore cannot enter the inside of the crushing cavity due to its larger volume.

[0040] As a further embodiment of the present invention, the fractal contact mechanism includes a plurality of strip-shaped grooves 7 (such as Figure 8As shown in the figure, a plurality of strip-shaped grooves 7 are distributed and opened on the two crushing jaw plates 5. On the sides of the two crushing jaw plates 5 away from each other, movable grooves 8 are opened. One side of each contact strip 6 extends along the corresponding strip-shaped groove 7 into the corresponding movable groove 8 and is fixedly connected with a limit baffle 9. On the adjacent sides of the moving jaw frame 3 and the fixed jaw frame 4, fixed grooves 10 are opened, and strip-shaped shells 11 are fixedly connected inside the fixed grooves 10. One side of each limit baffle 9 is fixedly connected with a movable strip 12. One end of the movable strip 12 is located inside the corresponding strip-shaped shell 11, and the inside of the strip-shaped shell 11 is slidably sealed through the corresponding plurality of movable strips 12. During operation, a plurality of metal balls are placed inside the strip-shaped shells 11. When the moving jaw frame 3 drives the corresponding crushing jaw plate 5 to move and approach the crushing jaw plate 5 on the fixed jaw frame 4, the barite ore located between the two crushing jaw plates 5 contacts the corresponding contact strip 6. And during the contact between the contact strip 6 and the barite ore, the plurality of contact strips 6 move cooperatively according to the transverse profile of the barite ore, so that the contact strip 6 moves along the corresponding strip-shaped groove 7 and drives the limit baffle 9 to move synchronously inside the movable groove 8. One end of the movable strip 12 on the limit baffle 9 moves inside the strip-shaped shell 11, and as the contact strip 6 and the barite ore contact and squeeze, the movable strip 12 contacts and squeezes the metal balls inside the strip-shaped shell 11. Through the free rolling of the metal balls inside the strip-shaped shell 11 for active filling, until the space inside the strip-shaped shell 11 is completely filled by one end of the plurality of movable strips 12 and the metal balls, the movable strips 12 can no longer move, so that the plurality of contact strips 6 move cooperatively according to the transverse profile of the barite ore during the contact with the barite ore, thereby increasing the transverse contact area between the contact strip 6 and the barite ore, improving the crushing effect and crushing rate when a plurality of barite ores are crushed simultaneously, and reducing the omission generated during the crushing process.

[0041] As a further embodiment of the present invention, the fitting crushing mechanism includes a plurality of arc-shaped grooves 13 (as Figure 6 shown), a plurality of arc-shaped grooves 13 are all opened on one side of the contact strip 6, arc-shaped blocks 14 are arranged inside the arc-shaped grooves 13, a contact plane 15 is opened on the side of the arc-shaped block 14 away from the arc-shaped groove 13, and arc-shaped slide rails 16 are fixedly connected inside the arc-shaped grooves 13 (as Figure 10As shown in the figure, a sliding groove 17 is formed on the arc-shaped block 14, and the arc-shaped slide rail 16 is slidably connected to the inside of the sliding groove 17. A sliding limit mechanism is connected to the arc-shaped block 14. During operation, when the contact strip 6 approaches the barite ore, the contact plane 15 on the arc-shaped block 14 contacts the surface of the barite ore. During the contact process, the sliding groove 17 on the arc-shaped block 14 slides along the arc-shaped slide rail 16, causing the arc-shaped block 14 to move inside the arc-shaped groove 13. As a result, the contact plane 15 on the arc-shaped block 14 fits the surface profile of the barite ore during the contact process, increasing the longitudinal contact area and contact friction with the barite ore, reducing the sliding generated during the crushing of the barite ore, and improving the crushing effect of the barite ore.

[0042] As a further embodiment of the present invention, the sliding limit mechanism includes a sliding notch 18, and the sliding notch 18 (as Figure 12 shown) is formed at the central position of the arc-shaped slide rail 16. A threaded hole 19 is formed on the arc-shaped block 14, and a flat head bolt 20 is threadedly connected to the inside of the threaded hole 19. One end of the flat head bolt 20 is located inside the sliding notch 18. During operation, one end of the flat head bolt 20 is located inside the sliding notch 18. When the arc-shaped block 14 moves inside the arc-shaped groove 13 through the sliding connection of the sliding groove 17 and the arc-shaped slide rail 16, one end of the flat head bolt 20 moves synchronously inside the sliding notch 18 and generates a limiting block at both ends of the sliding notch 18, thereby limiting the moving angle of the arc-shaped block 14 and preventing the arc-shaped block 14 from detaching from the corresponding arc-shaped groove 13.

[0043] As a further embodiment of the present invention, the disassembly and fixing mechanism includes two groups of fixing bolts 21 (as Figure 3 shown). The two groups of fixing bolts 21 are respectively located on the adjacent sides of the two crushing jaws 5. A plurality of through holes 22 are formed on the crushing jaws 5. One ends of the fixing bolts 21 are respectively located inside the corresponding through holes 22. One ends of the two groups of fixing bolts 21 respectively penetrate through the moving jaw frame 3 and the fixed jaw frame 4 and are threadedly connected with fixing nuts 23. The number of each group of fixing bolts 21 is four. During operation, through the threaded connection of the fixing bolts 21 and the fixing nuts 23, the two crushing jaws 5 are respectively fixed on the moving jaw frame 3 and the fixed jaw frame 4, and through the rotation and detachment of the fixing nuts 23, the crushing jaws 5 can be disassembled and moved, facilitating the replacement and maintenance of the crushing jaws 5.

[0044] As a further embodiment of the present invention, the driving mechanism includes a motor 24 fixedly installed on the frame 1. A transmission wheel 25 is fixedly connected to the output shaft of the motor 24. Flywheels 26 are fixedly connected to both ends of the eccentric shaft 2. A plurality of transmission belts 27 are drivingly connected between the transmission wheel 25 and the corresponding flywheels 26. During operation, the output shaft of the motor 24 rotates to drive the transmission wheel 25 to rotate, and through the driving action of the transmission belts 27, the corresponding flywheels 26 are driven to rotate in cooperation, and the eccentric shaft 2 is driven to rotate along the rotation connection of the frame 1.

[0045] As a further embodiment of the present invention, the movable constraint mechanism includes a mounting frame 28 fixedly connected to one side inside the frame 1 (as shown in Figure 4 ). A limiting plate 29 is fixedly connected to the bottom of the mounting frame 28. A movable through-hole 30 is formed in the limiting plate 29. A connecting frame 31 is fixedly connected to the bottom of the movable jaw frame 3 on the side away from the fixed jaw frame 4 (as shown in Figure 14 ). A pull rod 32 is rotatably connected to the connecting frame 31. One end of the pull rod 32 extends along the movable through-hole 30 to the side of the limiting plate 29 and is fixedly connected to a fixing plate 33. A spring 34 is provided between the fixing plate 33 and the limiting plate 29. The spring 34 is sleeved on the pull rod 32, and an elastic adjustment mechanism is connected to the spring 34. During operation, the fixing plate 33 is elastically abutted by the elastic stretching action of the spring 34, and through the fixed connection between the pull rod 32 and the fixing plate 33, the pull rod 32 pulls the connecting frame 31 under the elastic stretching action of the spring 34, so that the movable jaw frame 3 is always under elastic constraint. When the movable jaw frame 3 reciprocates under the action of the eccentric shaft 2, the movable jaw frame 3 is constrained by the pull rod 32, thereby restricting the movement range of the movable jaw frame 3. When the pull rod 32 pulls the movable jaw frame 3, the pull rod 32 rotates in cooperation along the rotation connection of the connecting frame 31.

[0046] As a further embodiment of the present invention, the elastic adjustment mechanism includes a fixing ring 35 (in combination with Figure 4 and Figure 11),(The fixed ring 35 is fixedly connected to one side of the fixed plate 33 close to the limit plate 29. The fixed ring 35 is located between the pull rod 32 and the spring 34. A bevel movable ring 36 is sleeved on the fixed ring 35. One end of the bevel movable ring 36 is fixedly connected with a contact ring 37. One end of the spring 34 is in contact with the contact ring 37. A plurality of limit grooves 38 are formed in the inclined end of the bevel movable ring 36. A limit strip 39 is fixedly connected to the surface of the fixed ring 35. One end of the limit strip 39 is located inside the corresponding limit groove 38. During operation, the spring 34 is located between the contact ring 37 and the limit plate 29. The pull rod 32 is elastically pulled by the elastic action of the spring 34. By pressing the bevel movable ring 36, the bevel movable ring 36 drives the contact ring 37 to move synchronously along the surface of the fixed ring 35, and compresses the spring 34. At the same time, during the movement of the bevel movable ring 36, one end of the limit strip 39 disengages from the corresponding limit groove 38, and then the bevel movable ring 36 is rotated to synchronously rotate the plurality of limit grooves 38 on the inclined end, and the limit groove 38 to be limited is rotated to the position of one end of the limit strip 39, and then the bevel movable ring 36 is released. One end of the limit strip 39 enters the corresponding limit groove 38. By rotating the bevel movable ring 36 and using one end of the limit strip 39 to enter the corresponding limit groove 38, the elastic compression degree of the spring 34 is adjusted by using different positions of the limit strip 39 and the bevel movable ring 36.)

[0047] As a further embodiment of the present invention, an elbow plate seat 40 is fixedly installed inside the installation frame 28. A first placement groove 41 is formed on one side of the elbow plate seat 40. A second placement groove 42 is formed on the movable jaw frame 3. An installation elbow plate 43 is arranged between the first placement groove 41 and the second placement groove 42. During operation, the installation elbow plate 43 is placed in a limited position through the first placement groove 41 and the second placement groove 42. When materials that cannot be broken fall into the crusher and cause the machine to exceed the usual load, the installation elbow plate 43 breaks, so as to elastically yield and stop the machine from working, preventing damage to the whole machine.)

[0048] As a further embodiment of the present invention, a blanking groove 44 is formed at the bottom of the frame 1. The bevel movable ring 36 is located above the blanking groove 44. During operation, the crushed barite ore is blanked through the blanking groove 44, and it is convenient to move and adjust the bevel movable ring 36 through the blanking groove 44, so as to adjust the elastic compression degree of the spring 34.)

[0049] The working principle of the present invention:

[0050] The barite ore to be crushed is continuously conveyed between two crushing jaw plates 5. Through the action of the driving mechanism, the eccentric shaft 2 rotates eccentrically along the rotation connection of the frame 1, causing the moving jaw frame 3 to move cooperatively along the rotation connection of the eccentric shaft 2. And through the action of the movable constraint mechanism, the movement of the moving jaw frame 3 is constrained, so that the moving jaw frame 3 makes reciprocating movements through the eccentric rotation of the eccentric shaft 2. When the barite ore is located between the moving jaw frame 3 and the fixed jaw frame 4, the crushing jaw plates 5 on the adjacent sides of the moving jaw frame 3 and the fixed jaw frame 4 form a crushing cavity, and are in contact with the barite ore through a plurality of contact strips 6. During the contact process, through the action of the fractal contact mechanism, the plurality of contact strips 6 move cooperatively according to the lateral contour of the barite ore, so that the lateral contact positions of the plurality of contact strips 6 and the barite ore produce contour adaptation, thereby increasing the lateral contact area between the barite ore and the corresponding contact strips 6. When a plurality of barite ores are crushed, the plurality of contact strips 6 can perform corresponding fractal contacts according to the sizes and shapes of the plurality of barite ores, improving the crushing effect and crushing rate of the barite ore. During the process of the contact strips 6 on the two crushing jaw plates 5 squeezing and crushing the barite ore, through the action of the fitting crushing mechanism, the longitudinal contact area between a single contact strip 6 and the barite ore is increased, and corresponding fitting is performed according to the longitudinal contour of the barite ore, thereby reducing the relative sliding between the barite ore and the contact strip 6 during the crushing process and increasing the contact friction force, enabling the barite ore with a larger volume to smoothly enter between the two crushing jaw plates 5 and reducing the situation where the barite ore cannot enter the interior of the crushing cavity due to its larger volume.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A barite powder jaw crushing device for mining and processing, including a frame, characterized in that, An eccentric shaft is rotatably connected to the top of the frame. A moving jaw frame is arranged inside the frame. The top end of the moving jaw frame is rotatably connected to the central position of the eccentric shaft. A fixed jaw frame is movably connected inside the frame. Crushing jaw plates are arranged on one adjacent side of the moving jaw frame and the fixed jaw frame. An active constraint mechanism is connected to the moving jaw frame, and a driving mechanism is connected to the eccentric shaft; A disassembly and fixing mechanism is connected to the crushing jaw plate. A plurality of contact strips are arranged on one adjacent side of the two crushing jaw plates. A fractal contact mechanism is connected between the contact strip and the corresponding crushing jaw plate. A fitting crushing mechanism is connected to each contact strip; The fitting crushing mechanism includes a plurality of arc-shaped grooves. The plurality of arc-shaped grooves are all opened on one side of the contact strip. Arc-shaped blocks are arranged inside the arc-shaped grooves. A contact plane is opened on one side of the arc-shaped block away from the arc-shaped groove. Arc-shaped sliding rails are fixedly connected inside the arc-shaped grooves. Sliding grooves are opened on the arc-shaped blocks. The arc-shaped sliding rails are slidably connected inside the sliding grooves. A sliding limit mechanism is connected to the arc-shaped blocks; The sliding limit mechanism includes a sliding notch. The sliding notch is opened at the central position of the arc-shaped sliding rail. A threaded hole is opened on the arc-shaped block. A flat head bolt is threadedly connected inside the threaded hole. One end of the flat head bolt is located inside the sliding notch; The fractal contact mechanism includes a plurality of strip-shaped grooves. The plurality of strip-shaped grooves are distributed and opened on the two crushing jaw plates. An active groove is opened on one side of the two crushing jaw plates away from each other. One side of each contact strip extends along the corresponding strip-shaped groove to the inside of the corresponding active groove and is fixedly connected with a limit baffle. Fixed grooves are opened on one adjacent side of the moving jaw frame and the fixed jaw frame. Strip-shaped shells are fixedly connected inside the fixed grooves. An active strip is fixedly connected to one side of each limit baffle. One end of the active strip is located inside the corresponding strip-shaped shell. The inside of the strip-shaped shell is slidably sealed through the corresponding plurality of active strips.

2. The barite powder jaw crushing device for mining and processing according to claim 1, characterized in that, The disassembly and fixing mechanism includes two groups of fixing bolts. The two groups of fixing bolts are respectively located on one adjacent side of the two crushing jaw plates. A plurality of through holes are opened on the crushing jaw plates. One ends of the fixing bolts are respectively located inside the corresponding through holes. One ends of the two groups of fixing bolts respectively penetrate through the moving jaw frame and the fixed jaw frame and are threadedly connected with fixing nuts. The number of each group of fixing bolts is four.

3. A barite powder jaw crushing device for mining and processing according to claim 1, characterized in that, The driving mechanism includes a motor. The motor is fixedly installed on the frame. A transmission wheel is fixedly connected to the output shaft of the motor. Flywheels are fixedly connected to both ends of the eccentric shaft. A plurality of transmission belts are connected in transmission between the transmission wheel and the corresponding flywheel.

4. A barite powder jaw crusher for mining and processing according to claim 1, characterized in that, The active constraint mechanism includes an installation frame. The installation frame is fixedly connected to one side inside the frame. A limit plate is fixedly connected to the bottom of the installation frame. An active through hole is opened on the limit plate. A connecting frame is fixedly connected to the bottom of the moving jaw frame away from the fixed jaw frame. A pull rod is rotatably connected to the connecting frame. One end of the pull rod extends along the active through hole to one side of the limit plate and is fixedly connected with a fixing plate. A spring is arranged between the fixing plate and the limit plate. The spring is sleeved on the pull rod. An elastic adjustment mechanism is connected to the spring.

5. The jaw crusher for barite powder used in mining and processing according to claim 4, wherein, The elastic adjustment mechanism includes a fixed ring, which is fixedly connected to one side of the fixed plate close to the limit plate. The fixed ring is located between the pull rod and the spring. A bevel movable ring is sleeved on the fixed ring. One end of the bevel movable ring is fixedly connected with a contact ring. One end of the spring is in contact with the contact ring. A plurality of limit grooves are formed in the inclined end of the bevel movable ring. A limit strip is fixedly connected to the surface of the fixed ring, and one end of the limit strip is located inside the corresponding limit groove.

6. The jaw crusher for barite powder used in mining and processing according to claim 4, wherein An elbow plate seat is fixedly installed inside the installation frame. A first placement groove is formed on one side of the elbow plate seat, and a second placement groove is formed on the movable jaw frame. An installation elbow plate is arranged between the first placement groove and the second placement groove.

7. The jaw crusher for barite powder used in mining and processing according to claim 5, wherein, A blanking groove is formed at the bottom of the frame, and the bevel movable ring is located above the blanking groove.

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