Mine crusher model

Abstract

A mine crusher model disclosed by the present invention comprises a mounting rack and a crushing mechanism, the mounting rack comprises a base, wallboards, a front rack and a rear rack, the wallboards are fixedly mounted on two sides of the base, the front rack and the rear rack are fixedly mounted between the two wallboards, the crushing mechanism comprises a fixed jaw guard plate, a movable jaw plate and a movable jaw body, and the movable jaw guard plate is fixedly mounted on the base. The fixed jaw protection plate is fixedly installed on the front rack, the movable jaw plate is fixedly installed on the movable jaw body, the bottom of the movable jaw body is supported on the rear rack through a toggle plate, a shaft hole is formed in the movable jaw body, an eccentric shaft is arranged in the shaft hole in a penetrating mode, flywheels are arranged at the two ends of the eccentric shaft, and the flywheels are connected with a driving motor through a transmission mechanism. The front rack, the rear rack and the movable jaw body are spliced into an integral structure in a steel plate stacking mode, assembly is completed through laser blanking and pin hole positioning in the manufacturing process, mortise and tenon connection and thread fastening are adopted in the whole process, the welding procedure is not needed, manufacturing is convenient, and the cost can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the technical field of crushers, and in particular to the technical field of mining crusher models. Background Technology

[0002] When training employees, a scaled-down model of a mining crusher should be used to explain the process, making it easier for employees to understand the working principle of the mining crusher.

[0003] The models currently used are all 3D printed products. Although they can fully present the overall structure of the crusher, they cannot realize dynamic operation demonstrations. For new employees, especially those working in the machinery industry, this single technical presentation method based solely on static structure is difficult to provide comprehensive and intuitive guidance and teaching during training, and is not conducive to their in-depth understanding of the working principles and operating mechanisms of the equipment. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a mining crusher model that can solve the above problems.

[0005] To achieve the above objectives, this invention proposes a mining crusher model, including a mounting frame and a crushing mechanism. The mounting frame includes a base, wall panels, a front frame, and a rear frame. Wall panels are fixedly installed on both sides of the base, and the front frame and rear frame are fixedly installed between the two wall panels. The crushing mechanism includes a fixed jaw guard plate, a movable jaw plate, and a movable jaw body. The fixed jaw guard plate is fixedly installed on the front frame, and the movable jaw plate is fixedly installed on the movable jaw body. The bottom of the movable jaw body is supported on the rear frame by an elbow plate. The movable jaw body has a shaft hole, and an eccentric shaft passes through the shaft hole. Bearing seats are fixedly installed on the wall panels. First bearings are installed on both sides of the eccentric shaft and are mounted on the bearing seats. Flywheels are provided at both ends of the eccentric shaft, and the flywheels are connected to a drive motor through a transmission mechanism.

[0006] Preferably, the bottom outer surface of the front frame is provided with a mounting slot, the bottom inner surface of the fixed jaw guard is provided with a mounting strip, the mounting strip is matched with the mounting slot, the top of the front frame is provided with a positioning groove, the top of the fixed jaw guard is provided with a positioning strip, the positioning strip is matched with the positioning groove, the top of the movable jaw body is provided with a positioning groove, the top of the movable jaw plate is provided with a positioning slope, the positioning slope is matched with the positioning groove, the bottom outer surface of the movable jaw body is provided with a mounting groove, the bottom inner surface of the movable jaw plate is provided with a mounting protrusion, the mounting protrusion is matched with the mounting groove.

[0007] Preferably, the movable jaw body is formed by stacking and splicing several movable jaw parts, and side plates are provided at both ends of the movable jaw body. The movable jaw plate is formed by stacking and splicing several first jaw plate parts and second jaw plate parts alternately. The surface of the first jaw plate parts is lower than the surface of the second jaw plate parts on both sides, and a tooth concave surface is formed between adjacent second jaw plates. The surface of the first jaw plate parts is provided with several reinforcing protrusions from top to bottom. A first through hole is opened on the reinforcing protrusion. A second through hole is opened on the second jaw plate parts. A connecting post is provided in the first through hole and the second through hole. The structure and installation method of the fixed jaw guard plate are the same as those of the movable jaw body.

[0008] Preferably, the top outer surface of the movable jaw body is provided with a first plate groove, and the top outer surface of the movable jaw plate is provided with a second plate groove. The first plate groove and the second plate groove are connected to form a complete mounting plate groove, and a clamping tooth plate is fixedly installed in the mounting plate groove. The bottom of the clamping tooth plate is provided with a plurality of positioning teeth, and a positioning slot is formed between adjacent positioning teeth. The positioning teeth are embedded in the tooth concave surface, and the inner surface of the positioning teeth abuts against the outer surface of the reinforcing protrusion located at the top. The positioning slot abuts against the top protrusion of the second jaw plate part.

[0009] Preferably, the wall panel is connected to the front frame and the rear frame by an interference fit with a hollow pin sleeve; the bottom of the wall panel is fixedly installed to the base by a bracket; a fixing rod is provided between the two wall panels, and the two ends of the fixing rod are fixed to the wall panel by nuts.

[0010] Preferably, the flywheel has a connecting circle for mounting an eccentric shaft, the edge of the connecting circle has a first threaded half-groove axially formed, and the end of the eccentric shaft has a second threaded half-groove axially formed. The first and second threaded half-grooves are joined together to form a connecting thread groove, and a connecting screw is installed in the connecting thread groove. The edge of the connecting circle has a first half-hole axially formed, and the end of the eccentric shaft has a second half-hole axially formed. The first and second half-holes are joined together to form a pin hole, and an elastic cylindrical pin is installed in the pin hole.

[0011] Preferably, the mounting frame and the crushing mechanism are both made of sheet metal splicing. The front frame, rear frame, fixed jaw guard plate, moving jaw plate and moving jaw body are made of sheet metal parts of corresponding shapes stacked together. When processing the sheet metal parts, the specific shape is first cut out by CNC laser, and then holes and grooves are processed in the corresponding positions by drilling and milling machines.

[0012] Preferably, the base includes an upper frame and a lower frame, both of which have several cross grooves. A connecting frame is provided between the upper frame and the lower frame, and several cross heads protrude from the upper and lower sides of the connecting frame, with the cross heads matching the cross grooves.

[0013] Preferably, the connecting frame consists of a plate and a piece, the plate having a plurality of first slots and the piece having a second slot, the piece being vertically mounted on the plate through the second slot to form a cross head.

[0014] Preferably, a second bearing is also installed on the eccentric shaft, with the two second bearings located between the two first bearings, and the mounting inner diameter of the second bearing is larger than the mounting inner diameter of the first bearing.

[0015] Preferably, the eccentric shaft and the bearing are in clearance fit.

[0016] The original model used an interference fit because it operated under heavy loads for a long time. The four bearings of the model in this application are changed to clearance fit, which eliminates the heating process required for interference fit. This saves assembly costs and allows new employees to learn and master installation and disassembly skills more easily and quickly.

[0017] The beneficial effects of this invention are: 1. The front and rear frames and the moving jaw body of this invention are assembled into an integral structure by stacking steel plates. During manufacturing, assembly is completed by laser cutting and pin hole positioning. The entire process uses mortise and tenon joints and threaded fastening, eliminating the need for welding. This not only facilitates manufacturing but also effectively reduces costs. In the design stage of this invention, each component of the frame assembly has been precisely cut using laser cutting technology. Therefore, after the frame assembly is assembled, there is no need for secondary processing as in the original model, thus effectively saving machine tool processing costs.

[0018] 2. The original model base is usually made of H-beams, but the corresponding size H-beams required for the scaled-down model are not currently available on the market. The base of this invention uses a steel plate tenon and mortise connection, which is simple to manufacture, has a far superior aesthetic appearance compared to standard parts, and can be modified according to requirements, making assembly flexible. 3. In this invention, a 3 mm diameter hole is drilled axially at the lower end of the connecting circle between the flywheel and the eccentric shaft, and an elastic cylindrical pin is installed to realize the radial warning function; in addition, an M3 thread is tapped at the upper end of the connecting circle and an M3 socket head cap screw is installed to prevent the flywheel from sliding axially, simplifying the processing process and saving processing costs. 4. Hollow pin sleeves are used at the connection points between the front and rear frames and the side panels of the frame, making disassembly and assembly smoother. This not only reduces the weight of the machine body but also makes it look more aesthetically pleasing. 5. In the original model, the upper end of the moving jaw plate is fixed by bolts through the combination with the upper wedge block and the clamping wedge block of the moving jaw. Given that the model of the present invention is smaller in size, the upper end threaded fixation is inconvenient in assembly. Therefore, the present invention innovatively designs the moving jaw plate, the upper wedge block of the moving jaw and the clamping wedge block as one piece, and then embeds the toothed protrusion of the clamping tooth plate into the tooth concave surface of the moving jaw plate, so that the upper end does not need to be threaded and can be fixed directly by the clamping tooth plate.

[0019] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is the front view of the present invention; Figure 5 This is an internal schematic diagram of the present invention; Figure 6 This is a schematic diagram of the installation of the clamping tooth plate of the present invention; Figure 7 This is a schematic diagram of the installation of the movable jaw plate of the present invention; Figure 8 This is a schematic diagram of the movable jaw body of the present invention; Figure 9 This is a schematic diagram of the assembly of the moving jaw plate of the present invention; Figure 10 This is a schematic diagram of the base assembly of the present invention; Figure 11 This is a schematic diagram of the connecting frame of the present invention; Figure 12 This is a schematic diagram of the flywheel connection circle of the present invention.

[0021] In the diagram: 1. Base; 2. Wall panel; 3. Front frame; 4. Rear frame; 5. Fixed jaw guard plate; 6. Moving jaw plate; 7. Moving jaw body; 8. Eccentric shaft; 9. Clamping gear plate; 21. Bearing seat; 31. Mounting slot; 32. Positioning groove; 51. Mounting strip; 52. Positioning strip; 61. Positioning bevel; 62. Mounting protrusion; 71. Positioning groove; 72. Mounting groove; 81. First bearing; 82. Flywheel; 83. Transmission mechanism; 84. Drive motor; 85. Connecting circle; 86. Connecting screw; 7. Elastic cylindrical pin; 90. Mounting plate groove; 91. Positioning tooth; 92. Positioning slot; 11. Upper frame; 12. Lower frame; 13. Cross groove; 14. Connecting bracket; 15. Cross head; 22. Second bearing; 60. Tooth concave surface; 601. First jaw plate part; 602. Second jaw plate part; 603. Reinforcing protrusion; 604. Connecting column; 70. Moving jaw part; 701. Side plate; 141. Insert plate; 142. Insert piece; 143. First slot; 144. Second slot; 33. Fixing rod. Detailed Implementation

[0022] See Figures 1 to 12 A mining crusher model includes a mounting frame and a crushing mechanism. The mounting frame includes a base 1, wall panels 2, a front frame 3, and a rear frame 4. Wall panels 2 are fixedly installed on both sides of the base 1, and the front frame 3 and the rear frame 4 are fixedly installed between the two wall panels 2. The crushing mechanism includes a fixed jaw guard plate 5, a movable jaw plate 6, and a movable jaw body 7. The fixed jaw guard plate 5 is fixedly installed on the front frame 3, and the movable jaw plate 6 is fixedly installed on the movable jaw body 7. The bottom of the movable jaw body 7 is supported on the rear frame 4 by an elbow plate. The movable jaw body 7 has a shaft hole, and an eccentric shaft 8 passes through the shaft hole. A bearing seat 21 is fixedly installed on the wall panel 2. First bearings 81 are installed on both sides of the eccentric shaft 8 and are mounted on the bearing seats 21. Flywheels 82 are provided at both ends of the eccentric shaft 8, and the flywheels 82 are connected to a drive motor 84 through a transmission mechanism 83.

[0023] The bottom outer surface of the front frame 3 is provided with a mounting slot 31, and the bottom inner surface of the fixed jaw guard plate 5 is provided with a mounting strip 51. The mounting strip 51 is matched and installed with the mounting slot 31. The top of the front frame 3 is provided with a positioning groove 32, and the top of the fixed jaw guard plate 5 is provided with a positioning strip 52. The positioning strip 52 is matched and installed with the positioning groove 32. The positioning groove 32 is a V-shaped groove. The top of the movable jaw body 7 is provided with a positioning inclined groove 71, and the top of the movable jaw plate 6 is provided with a positioning inclined surface 61. The positioning inclined surface 61 is matched and abuts against the positioning inclined groove 71. The bottom outer surface of the movable jaw body 7 is provided with a mounting groove 72, and the bottom inner surface of the movable jaw plate 6 is provided with a mounting protrusion 62. The mounting protrusion 62 is matched and installed with the mounting groove 72.

[0024] The movable jaw body 7 is assembled from several movable jaw parts 70 stacked together. Side plates 701 are provided at both ends of the movable jaw body 7. The movable jaw plate 6 is assembled from several first jaw plate parts 601 and second jaw plate parts 602 stacked alternately. The surface of the first jaw plate part 601 is lower than the surface of the second jaw plate parts 602 on both sides. Tooth concave surfaces 60 are formed between adjacent second jaw plates. The surface of the first jaw plate part 601 is provided with several reinforcing protrusions 603 from top to bottom. A first through hole is provided on the reinforcing protrusion 603. A second through hole is provided on the second jaw plate part 602. A connecting post 604 is provided in the first through hole and the second through hole. The structure and installation method of the fixed jaw guard plate 5 are the same as those of the movable jaw body 7.

[0025] The top outer surface of the movable jaw body 7 is provided with a first plate groove, and the top outer surface of the movable jaw plate 6 is provided with a second plate groove. The first plate groove and the second plate groove are connected to form a complete mounting plate groove 90. A clamping tooth plate 9 is fixedly installed in the mounting plate groove 90. The bottom of the clamping tooth plate 9 is provided with a plurality of positioning teeth 91. A positioning slot 92 is formed between adjacent positioning teeth 91. The positioning teeth 91 are embedded in the tooth concave surface 60, and the inner surface of the positioning teeth 91 abuts against the outer surface of the reinforcing protrusion 603 located at the top. The positioning slot 92 abuts against the top protrusion of the second jaw plate part 602.

[0026] The wall panel 2 is connected to the front frame 3 and the rear frame 4 by an interference fit with a hollow pin sleeve; the bottom of the wall panel 2 is fixedly installed to the base 1 by a bracket; a fixing rod 33 is provided between the two wall panels 2, and the two ends of the fixing rod 33 are fixed to the wall panel 2 by nuts.

[0027] The eccentric shaft 8 is clearance-fitted with the bearing.

[0028] The flywheel 82 has a connecting circle 85 for mounting an eccentric shaft 8. The edge of the connecting circle 85 has a first threaded half-groove axially, and the end of the eccentric shaft 8 has a second threaded half-groove axially. The first threaded half-groove and the second threaded half-groove are joined together to form a connecting thread groove. A connecting screw 86 is installed in the connecting thread groove. The edge of the connecting circle 85 has a first half-hole axially, and the end of the eccentric shaft 8 has a second half-hole axially. The first half-hole and the second half-hole are joined together to form a pin hole. An elastic cylindrical pin 87 is installed in the pin hole.

[0029] The line connecting the center of the threaded groove and the center of the pin hole passes through the center of the eccentric shaft 8.

[0030] The mounting frame and crushing mechanism are both made of sheet metal. The front frame 3, rear frame 4, fixed jaw guard plate 5, moving jaw plate 6 and moving jaw body 7 are made of sheet metal of corresponding shapes stacked together. When processing the sheet metal, the specific shape is first cut out by CNC laser, and then holes and grooves are processed in the corresponding positions by drilling and milling machines.

[0031] The base 1 includes an upper frame 11 and a lower frame 12. Both the upper frame 11 and the lower frame 12 are provided with a plurality of cross grooves 13. A connecting frame 14 is provided between the upper frame 11 and the lower frame 12. A plurality of cross heads 15 are protruding on the upper and lower sides of the connecting frame 14. The cross heads 15 are matched and installed with the cross grooves 13.

[0032] The connecting frame 14 is composed of a plate 141 and a piece 142. The plate 141 has a plurality of first slots 143 and the piece 142 has a second slot 144. The piece 142 is vertically mounted on the plate 141 through the second slot 144 to form a cross head 15.

[0033] The eccentric shaft 8 is also equipped with a second bearing 22. The two second bearings 22 are located between the two first bearings 81. The inner diameter of the second bearing 22 is larger than the inner diameter of the first bearing 81.

[0034] After scaling down the product, the eccentric shaft size cannot meet the requirements for assembling four identical bearings. Therefore, the diameter dimensions of the eccentric bearings are made of two large and two small sizes to meet the machining requirements of the eccentric shaft.

[0035] This invention utilizes the organic integration of SOLIDWORKS, CAD, and CAXA software for scaling and reorganization, and has undergone extensive optimization based on actual production conditions. Despite its small size, the machine is fully functional, weighing only 9.8 kg, a significant reduction in both weight and size compared to the original DIY model's over 60 tons. It has been successfully applied in training and demonstration, effectively reducing various application costs. During manufacturing, the product employed a small CNC lathe, CNC laser cutting, a small drilling machine, and a small milling machine, with rigorous dimensional measurement and precision assembly, providing comprehensive practical learning opportunities for students new to the machinery industry. Furthermore, this DIY model, once powered on, achieves the same operational effect as the original model and can also serve as an office decoration.

[0036] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A mining crusher model, characterized in that: The device includes a mounting frame and a crushing mechanism. The mounting frame includes a base (1), wall panels (2), a front frame (3), and a rear frame (4). Wall panels (2) are fixedly installed on both sides of the base (1), and the front frame (3) and the rear frame (4) are fixedly installed between the two wall panels (2). The crushing mechanism includes a fixed jaw guard plate (5), a movable jaw plate (6), and a movable jaw body (7). The fixed jaw guard plate (5) is fixedly installed on the front frame (3), and the movable jaw plate (6) is fixedly installed on the movable jaw body (7). The bottom of the moving jaw body (7) is supported on the rear frame (4) by an elbow plate. The moving jaw body (7) is provided with a shaft hole, and an eccentric shaft (8) is inserted through the shaft hole. A bearing seat (21) is fixedly installed on the wall plate (2). A first bearing (81) is installed on both sides of the eccentric shaft (8). The first bearing (81) is installed on the bearing seat (21). Flywheels (82) are provided at both ends of the eccentric shaft (8). The flywheels (82) are connected to the drive motor (84) through a transmission mechanism (83).

2. The mining crusher model as described in claim 1, characterized in that: The bottom outer surface of the front frame (3) is provided with a mounting slot (31), the bottom inner surface of the fixed jaw guard (5) is provided with a mounting strip (51), the mounting strip (51) is matched with the mounting slot (31) for installation, the top of the front frame (3) is provided with a positioning groove (32), the top of the fixed jaw guard (5) is provided with a positioning strip (52), the positioning strip (52) is matched with the positioning groove (32) for installation, the top of the movable jaw body (7) is provided with a positioning groove (71), the top of the movable jaw plate (6) is provided with a positioning slope (61), the positioning slope (61) is matched with the positioning groove (71) for abutment, the bottom outer surface of the movable jaw body (7) is provided with a mounting groove (72), the bottom inner surface of the movable jaw plate (6) is provided with a mounting protrusion (62), the mounting protrusion (62) is matched with the mounting groove (72) for installation.

3. The mining crusher model as described in claim 1, characterized in that: The movable jaw body (7) is formed by stacking and splicing several movable jaw parts (70). The movable jaw body (7) has side plates (701) at both ends. The movable jaw plate (6) is formed by stacking and splicing several first jaw plate parts (601) and second jaw plate parts (602) in an alternating manner. The surface of the first jaw plate part (601) is lower than the surface of the second jaw plate parts (602) on both sides. A tooth concave surface (60) is formed between adjacent second jaw plates. The surface of the first jaw plate part (601) is provided with several reinforcing protrusions (603) from top to bottom. A first through hole is opened on the reinforcing protrusion (603). A second through hole is opened on the second jaw plate part (602). A connecting post (604) is provided in the first through hole and the second through hole. The structure and installation method of the fixed jaw guard plate (5) are the same as those of the movable jaw body (7).

4. The mining crusher model as described in claim 3, characterized in that: The top outer surface of the movable jaw body (7) is provided with a first plate groove, and the top outer surface of the movable jaw plate (6) is provided with a second plate groove. The first plate groove and the second plate groove are connected to form a complete mounting plate groove (90). A clamping tooth plate (9) is fixedly installed in the mounting plate groove (90). The bottom of the clamping tooth plate (9) is provided with a plurality of positioning teeth (91). A positioning slot (92) is formed between adjacent positioning teeth (91). The positioning teeth (91) are embedded in the tooth concave surface (60), and the inner surface of the positioning teeth (91) abuts against the outer surface of the reinforcing protrusion (603) located at the top. The positioning slot (92) abuts against the top protrusion of the second jaw plate part (602).

5. The mining crusher model as described in claim 1, characterized in that: The wall panel (2) is connected to the front frame (3) and the rear frame (4) by an interference fit with a hollow pin sleeve; the bottom of the wall panel (2) is fixedly installed to the base (1) by a bracket; a fixing rod (33) is provided between the two wall panels (2), and the two ends of the fixing rod (33) are fixed to the wall panel (2) by nuts.

6. The mining crusher model as described in claim 1, characterized in that: The flywheel (82) has a connecting circle (85) for mounting an eccentric shaft (8). The edge of the connecting circle (85) has a first threaded half-groove, and the end of the eccentric shaft (8) has a second threaded half-groove. The first threaded half-groove and the second threaded half-groove are joined together to form a connecting thread groove. A connecting screw (86) is installed in the connecting thread groove. The edge of the connecting circle (85) has a first half-hole, and the end of the eccentric shaft (8) has a second half-hole. The first half-hole and the second half-hole are joined together to form a pin hole. An elastic cylindrical pin (87) is installed in the pin hole.

7. The mining crusher model as described in claim 1, characterized in that: The mounting frame and the crushing mechanism are both made of plate splicing. The front frame (3), rear frame (4), fixed jaw guard plate (5), moving jaw plate (6) and moving jaw body (7) are made of corresponding shaped component plates stacked together. When processing the component plates, the specific shape is first cut out by CNC laser, and then holes and grooves are processed in the corresponding positions by drilling and milling machines.

8. The mining crusher model as described in claim 1, characterized in that: The base (1) includes an upper frame (11) and a lower frame (12). Both the upper frame (11) and the lower frame (12) are provided with a number of cross grooves (13). A connecting frame (14) is provided between the upper frame (11) and the lower frame (12). A number of cross heads (15) are protruding on the upper and lower sides of the connecting frame (14). The cross heads (15) are matched and installed with the cross grooves (13).

9. The mining crusher model as described in claim 8, characterized in that: The connecting frame (14) is composed of a plug plate (141) and a plug piece (142). The plug plate (141) has a plurality of first slots (143) and the plug piece (142) has a second slot (144). The plug piece (142) is vertically mounted on the plug plate (141) through the second slot (144) to form a cross head (15).

10. The mining crusher model as described in claim 1, characterized in that: The eccentric shaft (8) is also equipped with a second bearing (22), and the two second bearings (22) are located between the two first bearings (81). The mounting inner diameter of the second bearing (22) is larger than the mounting inner diameter of the first bearing (81).

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