A quick-replacement structure for wear-resistant liners of crushers

Abstract

This utility model relates to the field of wear-resistant liners, and in particular to a quick-replacement structure for wear-resistant liners in crushers. It includes a liner removal component and a crusher body. The crusher body has a crushing mechanism inside. A movable plate is rotatably mounted on the outside of the eccentric output shaft of the crushing mechanism. Wear-resistant liners are provided on both the movable plate and the inner side of the crusher body. Two positioning plates are fixedly installed on the outer sides of each of the two wear-resistant liners. A positioning assembly is provided inside the crusher body and the movable plate. A double-headed motor drives a threaded rod to rotate, causing the movable plate to move away from the positioning plate, thus disengaging the positioning block from the interior of the positioning plate. At this point, the positioning block releases its positioning of the positioning plate, achieving the effect of quick disassembly of the wear-resistant liners. This solves the problem of unsafe worker access to the equipment in existing technologies, and also addresses the issue of limited space inside the crushing chamber, which restricts movement and significantly affects stone crushing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wear-resistant liners, and in particular to a quick-replacement structure for wear-resistant liners of crushers. Background Technology

[0002] Liners are the components in a crusher that directly contact the material and bear the greatest wear. In a jaw crusher, liner installation positions include fixed jaw plates (installed inside the fixed frame), movable jaw plates (installed outside the movable jaw plates), and side guard plates (installed on the frames on both sides of the crushing chamber). Each liner is usually directly fixed to the crusher body by multiple high-strength bolts. The bolts pass through holes in the liner and are tightened with nuts or directly screwed into the bolt holes in the frame. When the liner is severely worn and needs to be replaced, the worker needs to enter the crushing chamber to loosen and remove the bolts one by one, randomly pry off the old liner with a pry bar or hoist, and then retighten all the bolts one by one, tightening the torque according to the procedure.

[0003] During operation, workers need to enter the crushing chamber (which is unsafe) to randomly disassemble and install the heavy liners inside the crushing chamber. This is risky, and the internal space of the crushing chamber is small, making it inconvenient to turn around when unloading bolts inside, making it difficult to quickly install the liners. Furthermore, the use of a large number of bolts to install the liners makes disassembly one by one tedious and time-consuming. Therefore, it is not convenient to quickly disassemble and replace the liners, which prolongs downtime and affects the working efficiency of the equipment. Utility Model Content

[0004] In view of the problems in the above or existing technologies, such as the inconvenience of quickly disassembling and replacing the liner, which prolongs downtime and thus affects the working efficiency of the equipment, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A liner removal component includes a crusher body, inside which a crushing mechanism is provided. A movable plate is rotatably mounted on the outside of the eccentric output shaft of the crushing mechanism. Wear-resistant liners are provided on both the movable plate and the inner side of the crusher body. Two positioning plates are fixedly installed on the outer sides of the two wear-resistant liners. A positioning assembly is provided inside the crusher body and the movable plate. The guard plate removal component includes two fixed plates, both of which are fixedly installed inside the crusher body. Wear-resistant guard plates are inserted into the outer sides of both fixed plates. Two bolts are threaded into the inner sides of both wear-resistant guard plates. A rubber sleeve is fixedly installed inside the top of the crusher body. A guide block is inserted into the inner side of the rubber sleeve. Two rubber pads are fixedly installed at the bottom of the guide block.

[0006] As a preferred embodiment of the quick replacement structure for the wear-resistant liner of the crusher of this utility model, the positioning component includes two dual-head motors, which are respectively fixedly installed inside the crusher body and the movable plate. Each of the two output ends of the dual-head motors is fixedly installed with a threaded rod, and the threads of the two threaded rods connected to the same dual-head motor are opposite. A movable plate is installed on the external thread of the threaded rod. Two positioning blocks are fixedly installed on the side of the movable plate near the positioning plate. Four auxiliary columns are fixedly installed on the inner side of the wear-resistant liner.

[0007] As a preferred embodiment of the quick replacement structure for the wear-resistant liner of the crusher of this utility model, the auxiliary column and positioning plate on the outside of the wear-resistant liner on the left are inserted into the inside of the crusher body, and the auxiliary column and positioning plate on the outside of the wear-resistant liner on the right are inserted into the inside of the movable plate. The positioning plate and the positioning block are provided with slots at corresponding positions, and the positioning block is inserted into the slot.

[0008] As a preferred embodiment of the quick replacement structure for the wear-resistant liner of the crusher of this utility model, the four movable plates are symmetrically slidably installed in pairs inside the crusher body and the movable plate, and the two threaded rods are rotatably installed inside the crusher body and the movable plate respectively.

[0009] As a preferred embodiment of the quick replacement structure for the wear-resistant liner of the crusher of this utility model, the crusher body and the wear-resistant liner are provided with mounting grooves at corresponding positions, and the fixing plate is fixedly installed inside the mounting groove, and the bolts are threaded through the wear-resistant liner and installed inside the crusher body.

[0010] As a preferred embodiment of the quick replacement structure for the wear-resistant liner of the crusher of this utility model, the bottom of the guide block abuts against the wear-resistant liner on the left, and the right side of the guide block is an inclined surface.

[0011] As a preferred embodiment of the quick replacement structure for the wear-resistant liner of the crusher of this utility model, the bottoms of the two rubber pads respectively abut against the tops of the two wear-resistant liners, and the two wear-resistant liners are respectively disposed on the front and back of the two wear-resistant liners.

[0012] The beneficial effects of the quick-replacement structure for wear-resistant liners in crushers of this utility model are as follows:

[0013] 1. By disassembling the components through the liner, the double-headed motor drives the threaded rod to rotate, causing the moving plate to move away from the positioning plate, and causing the positioning block to disengage from the interior of the positioning plate. At this time, the positioning block releases its positioning of the positioning plate, thereby achieving the effect of quick disassembly of the wear-resistant liner. This solves the problem of the safety of workers entering the equipment in the existing technology, and also solves the problem of the small internal space of the crushing chamber, which makes it inconvenient to move and takes a long time to disassemble multiple screws at the same time, greatly affecting the stone crushing efficiency.

[0014] 2. The components are disassembled through the protective plate, and the guide block is used to guide the stone to avoid direct impact on the wear-resistant liner and cause greater damage. When the wear-resistant protective plate is damaged, the guide block is lifted and removed, and the bolts are turned to release the limit on the wear-resistant protective plate, so that the wear-resistant protective plate can be quickly disassembled, achieving the effect of quick disassembly and replacement of the wear-resistant protective plate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a quick-replacement structure for wear-resistant liners in a crusher.

[0017] Figure 2 This is a schematic diagram of the back of the quick-change structure for the wear-resistant liner of a crusher.

[0018] Figure 3 A cross-sectional schematic diagram of a quick-replacement structure for wear-resistant liners in a crusher.

[0019] Figure 4 A schematic diagram of the positioning component for the quick replacement structure of the wear-resistant liner of a crusher.

[0020] Figure 5 An exploded view of the mechanism connected to the wear-resistant liner machine with a quick-change structure for the wear-resistant liner of a crusher.

[0021] In the diagram: 10. Crusher body; 11. Crushing mechanism; 12. Movable plate; 13. Wear-resistant liner; 14. Positioning plate; 15. Positioning assembly; 151. Dual-head motor; 152. Threaded rod; 153. Moving plate; 154. Positioning block; 155. Auxiliary column; 20. Fixed plate; 21. Wear-resistant guard plate; 22. Bolt; 23. Rubber sleeve; 24. Guide block; 25. Rubber pad. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Example 1, referring to Figures 1-4This is the first embodiment of the present invention. This embodiment provides a quick-replacement structure for wear-resistant liners of a crusher, which can achieve the effect of quick replacement of wear-resistant liners. It includes a liner disassembly component and a crusher body 10. A crushing mechanism 11 is provided inside the crusher body 10. A movable plate 12 is rotatably mounted on the outside of the eccentric output shaft of the crushing mechanism 11. Wear-resistant liners 13 are provided on the inner side of both the movable plate 12 and the crusher body 10. Two positioning plates 14 are fixedly installed on the outer side of both wear-resistant liners 13. Positioning components 15 are provided inside the crusher body 10 and the movable plate 12.

[0024] Furthermore, the positioning assembly 15 includes two dual-head motors 151, which are respectively fixedly installed inside the crusher body 10 and the movable plate 12. Each of the two output ends of the dual-head motor 151 is fixedly installed with a threaded rod 152, and the threads of the two threaded rods 152 connected to the same dual-head motor 151 are opposite. A movable plate 153 is installed on the external thread of the threaded rod 152. Two positioning blocks 154 are fixedly installed on the side of the movable plate 153 near the positioning plate 14. Four auxiliary columns 155 are fixedly installed on the inner side of the wear-resistant liner 13.

[0025] The auxiliary column 155 on the outside of the left wear-resistant liner 13 and the positioning plate 14 are inserted into the inside of the crusher body 10, and the auxiliary column 155 on the outside of the right wear-resistant liner 13 and the positioning plate 14 are inserted into the inside of the movable plate 12. The positioning plate 14 and the positioning block 154 are provided with slots at corresponding positions, and the positioning block 154 is inserted into the slot.

[0026] Preferably, the four movable plates 153 are symmetrically slidably installed in pairs inside the crusher body 10 and the movable plate 12, and the two threaded rods 152 are rotatably installed inside the crusher body 10 and the movable plate 12 respectively.

[0027] It should be noted that the crusher body 10 and the crushing mechanism 11 are existing PEX250×1000 jaw crushers, so they will not be explained in detail here.

[0028] When the right-side wear-resistant liner 13 needs to be replaced, the double-headed motor 151 inside the movable plate 12 is activated, causing the double-headed motor 151 to rotate and drive the two threaded rods 152 to rotate. Since the threads of the two threaded rods 152 are opposite, the moving plates 153 outside the two threaded rods 152 move synchronously in opposite directions. The two moving plates 153 move away from the positioning plate 14 at the same time, causing the positioning insert 154 to disengage from the interior of the positioning plate 14. At this time, the positioning insert 154 releases its positioning of the positioning plate 14. Then, by using an additional tool to clamp the wear-resistant liner 13 in the groove, i.e., the crushing groove, the wear-resistant liner 13 can be lifted upwards, thereby detaching the positioning plate 14 from the movable plate 12. The interior of plate 2 allows the damaged wear-resistant liner 13 to be separated from the movable plate 12, enabling quick disassembly and replacement of the damaged wear-resistant liner 13. When disassembling the left wear-resistant liner 13, the guide block 24 needs to be lifted upwards to disengage from the rubber sleeve 23, so as not to obstruct the top of the left wear-resistant liner 13. Then, the left wear-resistant liner 13 can be removed and replaced in the same way. The two wear-resistant liners 13 are installed by the cooperation of the positioning plate 14, the movable plate 153 and the positioning insert 154, without the need to use a large number of screws. When replacing, there is no need for workers to enter the crusher body 10 to disassemble them one by one, which greatly reduces downtime when replacing the damaged wear-resistant liner 13.

[0029] Furthermore, the grooves of the two wear-resistant liners 13 are staggered, thereby improving the crushing effect.

[0030] Furthermore, the auxiliary column 155 is inserted into the interior of the movable plate 12, making the installation of the movable plate 12 and the wear-resistant liner 13 more compact. This further prevents misalignment between the movable plate 12 and the wear-resistant liner 13 during use, resulting in better performance.

[0031] Example 2, refer to Figure 1 , Figure 5 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment, based on embodiment 1, also provides a protective plate disassembly component for a quick-replacement structure of the wear-resistant liner of the crusher, solving the problem of quick replacement of the wear-resistant protective plate. It includes a protective plate disassembly component comprising two fixing plates 20, both of which are fixedly installed inside the crusher body 10. Wear-resistant protective plates 21 are inserted into the outside of both fixing plates 20. Two bolts 22 are threadedly installed inside each of the two wear-resistant protective plates 21. A rubber sleeve 23 is fixedly installed inside the top of the crusher body 10 to facilitate quick insertion and installation of the guide block 24. The guide block 24 is inserted into the inside of the rubber sleeve 23. Two rubber pads 25 are fixedly installed at the bottom of the guide block 24, pressing against the top of the two wear-resistant protective plates 21, reducing the impact force of the stone while pressing and positioning the wear-resistant protective plates 21, thereby reducing the burden on the bolts 22.

[0032] Specifically, the crusher body 10 and the wear-resistant guard plate 21 are provided with mounting grooves at corresponding positions, and the fixing plate 20 is fixedly installed inside the mounting groove, which facilitates quick positioning of the wear-resistant guard plate 21 and facilitates installation. The bolts 22 penetrate the wear-resistant guard plate 21 and are threaded inside the crusher body 10 to install the wear-resistant guard plate 21.

[0033] Furthermore, the bottom of the guide block 24 abuts against the left wear-resistant liner 13, so that the stone falls smoothly and will not get stuck between the guide block 24 and the wear-resistant liner 13, and the stone will not hit the top of the wear-resistant liner 13. The right side of the guide block 24 is an inclined surface to guide the stone.

[0034] When in use, the right side of the guide block 24 is inclined to guide the stone. When the wear-resistant guard plate 21 is damaged, the guide block 24 is lifted to detach from the rubber sleeve 23. At this time, the two rubber pads 25 are not in contact with the top of the wear-resistant guard plate 21. The bolts 22 are then loosened to detach the wear-resistant guard plate 21 from the crusher body 10. The wear-resistant guard plate 21 can be pulled upward to detach from the mounting slot of the fixing plate 20 and the crusher body 10. At this time, the damaged wear-resistant guard plate 21 is disassembled and a new wear-resistant guard plate 21 can be installed in this position for use.

[0035] Furthermore, when a stone hits the inclined surface of the guide block 24, the rubber sleeve 23 absorbs and reduces the impact force, thereby protecting the guide block 24, extending its service life, and making the replacement of the guide block 24 convenient and time-saving.

[0036] Furthermore, when the guide block 24 is struck and falls, the two rubber pads 25 fall simultaneously and press against the top of the two wear-resistant plates 21, further reducing the impact force while further pressing and positioning the wear-resistant plates 21, thereby reducing the burden on the bolts 22 and protecting the bolts 22.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick change structure of a wear liner plate of a crusher, characterized by: include, The liner removal component includes a crusher body (10), a crushing mechanism (11) is provided inside the crusher body (10), a movable plate (12) is rotatably installed on the outside of the eccentric output shaft of the crushing mechanism (11), wear-resistant liners (13) are provided on the inner side of both the movable plate (12) and the crusher body (10), two positioning plates (14) are fixedly installed on the outer side of both wear-resistant liners (13), and positioning components (15) are provided inside the crusher body (10) and the movable plate (12). The protective plate disassembly component includes two fixing plates (20), both of which are fixedly installed inside the crusher body (10). Wear-resistant protective plates (21) are inserted into the outside of both fixing plates (20). Two bolts (22) are threaded into the inside of each of the two wear-resistant protective plates (21). A rubber sleeve (23) is fixedly installed inside the top of the crusher body (10). A guide block (24) is inserted into the inside of the rubber sleeve (23). Two rubber pads (25) are fixedly installed at the bottom of the guide block (24).

2. The quick replacement structure of the crusher wear liner according to claim 1, characterized in that: The positioning component (15) includes two dual-head motors (151), which are respectively fixedly installed inside the crusher body (10) and the movable plate (12). Each of the two output ends of the dual-head motor (151) is fixedly installed with a threaded rod (152), and the threads of the two threaded rods (152) connected to the same dual-head motor (151) are opposite. A movable plate (153) is installed on the external thread of the threaded rod (152). Two positioning blocks (154) are fixedly installed on the side of the movable plate (153) near the positioning plate (14). Four auxiliary columns (155) are fixedly installed on the inner side of the wear-resistant liner (13).

3. The quick replacement structure of the crusher wear liner according to claim 2, characterized in that: The auxiliary column (155) and positioning plate (14) outside the wear-resistant liner (13) on the left are inserted into the inside of the crusher body (10), and the auxiliary column (155) and positioning plate (14) outside the wear-resistant liner (13) on the right are inserted into the inside of the movable plate (12). The positioning plate (14) and the positioning block (154) have slots at their corresponding positions, and the positioning block (154) is inserted into the slot.

4. The quick replacement structure of the crusher wear liner according to claim 3, characterized in that: The four movable plates (153) are symmetrically slidably installed in pairs inside the crusher body (10) and the movable plate (12), and the two threaded rods (152) are rotatably installed inside the crusher body (10) and the movable plate (12).

5. The quick replacement structure of the crusher wear liner according to claim 1, characterized in that: The crusher body (10) and the wear-resistant guard plate (21) are provided with mounting grooves at corresponding positions, and the fixing plate (20) is fixedly installed inside the mounting groove. The bolt (22) passes through the wear-resistant guard plate (21) and is threaded inside the crusher body (10).

6. The quick replacement structure of a crusher wear liner according to claim 1, characterized in that: The bottom of the guide block (24) abuts against the wear-resistant liner (13) on the left, and the right side of the guide block (24) is an inclined surface.

7. The quick exchange structure of a crusher wear liner according to claim 1, characterized in that: The bottoms of the two rubber pads (25) respectively abut against the tops of two wear-resistant guards (21), and the two wear-resistant guards (21) are respectively arranged on the front surface and the back of the two wear-resistant liners (13).

Images