Crusher frame bushing with high stability

Abstract

The utility model relates to the technical field of crusher bushing, disclose a high stability's crusher frame bushing, including cone crusher frame and bushing subassembly, the bushing subassembly includes the outer bushing and inner bushing, the outer bushing is at the inside of cone crusher frame, and the outer bushing is compatible with cone crusher frame, the inner bushing is at the inside of outer bushing, and the inner bushing is compatible with outer bushing, the inner wall of inner bushing is provided with inclined crushing wall, the outer edge of outer bushing is equidistantly penetrated and is rotationally connected with connecting shaft, and the outer edge of outer bushing rotationally installs annular piece, the upper end fixed mounting of connecting shaft has lead screw. The utility model through the cooperation between convex piece, annular piece, tooth slot, spur gear, connecting shaft, lead screw and baffle disc can be used along the outer bushing to carry out the vertical movement adjustment to inner bushing, thereby adjusting the distance between inclined crushing wall and the crushing cone in cone crusher frame, thereby conveniently adjusting the crushing particle size, and it is flexible and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of crusher bushing technology, specifically a crusher frame bushing with high stability. Background Technology

[0002] Cone crushers are high-efficiency crushing equipment widely used in mining, construction, and metallurgy industries. Their frame is the core supporting structure, bearing the entire working load of the crusher. The frame bushing is an important component that protects the frame from wear and damage. The design and installation of the bushing are crucial to ensuring the normal operation of the crusher, and its forging quality directly affects the overall performance and service life of the crusher.

[0003] The published patent document with announcement number CN221743037U discloses a bushing structure for a cone crusher. This published patent document opens an annular groove on the inner wall of the bushing body, inserts multiple liner blocks into the annular groove, and splices the multiple liner blocks to form a ring. When any liner block wears out, only the worn liner block needs to be replaced, which is not only convenient to replace but also reduces the operating cost. However, the above-mentioned published patent document cannot adjust the distance between the inclined crushing wall of the bushing and the crushing cone inside the cone crusher frame, the crushing particle size is fixed, and the flexibility of use is poor. Utility Model Content

[0004] The purpose of this invention is to provide a crusher frame bushing with high stability, which solves the problems mentioned in the background art.

[0005] This application provides a highly stable crusher frame bushing, including a cone crusher frame and a bushing assembly. The bushing assembly includes an outer liner and an inner liner. The outer liner is located inside the cone crusher frame and is adapted to the cone crusher frame. The inner liner is located inside the outer liner and is adapted to the outer liner. The inner wall of the inner liner is provided with an inclined crushing wall. A connecting shaft is equidistantly penetrating and rotatably connected to the outer edge of the outer liner. An annular component is rotatably installed at the outer edge of the outer liner. A lead screw is fixedly installed at the upper end of the connecting shaft, and a spur gear is sleeved and fixedly installed on the connecting shaft. The lead screw penetrates the inner liner and is threadedly connected to the inner liner. The thread helix angle of the lead screw is less than the equivalent friction angle. The inner wall of the annular component has a tooth groove that matches the spur gear, and the annular component meshes with the spur gear.

[0006] Optionally, the inner wall of the cone crusher frame is provided with several mounting slots with open tops at equal intervals, and the outer wall of the cone crusher frame is welded with several mounting ears at equal intervals. The outer wall of the outer liner is fixedly connected with several mounting strips that match the mounting slots at equal intervals. The mounting strips are located inside the mounting slots and have threaded holes. A rotating shaft is rotatably mounted on the top of the mounting ear. A fixing member is sleeved and fixedly mounted on the rotating shaft. A threaded shaft that matches the threaded hole is threaded through and threadedly connected to the fixing member. The lower end of the threaded shaft is located inside the threaded hole. The number of mounting slots, mounting strips and mounting ears is equal, and each mounting slot, each mounting strip and each mounting ear corresponds one-to-one.

[0007] Optionally, a rubber ring is fixedly connected to the inner wall of the outer liner, and the inner wall of the rubber ring is in contact with the outer wall of the inner liner.

[0008] Optionally, a protrusion is fixedly installed at the bottom of the annular component.

[0009] Optionally, a baffle plate is fixedly installed at the upper end of the lead screw.

[0010] Optionally, a knob is fixedly installed on the upper end of the threaded shaft.

[0011] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0012] 1. The technical solution of this application uses the cooperation of protrusions, ring parts, toothed grooves, spur gears, connecting shafts, lead screws and baffles to vertically move and adjust the inner lining along the outer lining, thereby adjusting the distance between the inclined crushing wall and the crushing cone inside the cone crusher frame, thus facilitating the adjustment of the crushing particle size and making it flexible and convenient to use.

[0013] 2. The technical solution of this application facilitates the installation and disassembly of the bushing assembly and the cone crusher frame through the cooperation of the mounting groove, mounting strip, threaded hole, mounting ear, rotating shaft, fixing part, threaded shaft and knob, which not only increases the convenience of replacing the bushing assembly, but also improves the stability of the installation between the bushing assembly and the cone crusher frame. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of the present invention from the front view.

[0016] Figure 2 This is a top-view structural diagram of the outer and inner linings of this utility model;

[0017] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0019] In the diagram: 1. Cone crusher frame; 2. Outer liner; 3. Inner liner; 4. Lead screw; 5. Mounting lug; 6. Inclined crushing wall; 7. Mounting strip; 8. Rubber ring; 9. Baffle plate; 10. Mounting groove; 11. Threaded hole; 12. Rotating shaft; 13. Fixing component; 14. Threaded shaft; 15. Knob; 16. Ring component; 17. Connecting shaft; 18. Tooth groove; 19. Spur gear; 20. Protrusion. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Please see Figure 1 , Figure 2 and Figure 4 This utility model provides a high-stability crusher frame bushing, including a cone crusher frame 1 and a bushing assembly. The bushing assembly includes an outer liner 2 and an inner liner 3. The outer liner 2 is located inside the cone crusher frame 1 and is adapted to the cone crusher frame 1. The inner liner 3 is located inside the outer liner 2 and is adapted to the outer liner 2. The inner wall of the inner liner 3 is provided with an inclined crushing wall 6. A connecting shaft 17 is equidistantly penetrating and rotatably connected to the outer edge of the outer liner 2. An annular part 16 is rotatably installed at the outer edge of the outer liner 2. A lead screw 4 is fixedly installed at the upper end of the connecting shaft 17. A spur gear 19 is sleeved and fixedly installed on the connecting shaft 17. The lead screw 4 penetrates the inner liner 3 and is threadedly connected to the inner liner 3. The thread helix angle of the lead screw 4 is less than the equivalent friction angle. The inner wall of the annular part 16 is provided with a tooth groove 18 that matches the spur gear 19, and the annular part 16 is meshed with the spur gear 19.

[0022] In this technical solution, the rotating annular component 16, because the inner wall of the annular component 16 has a tooth groove 18 that matches the spur gear 19, can drive all the spur gears 19 to rotate synchronously. The spur gears 19 drive the connecting shaft 17 to rotate, and all the connecting shafts 17 drive all the lead screws 4 to rotate synchronously, thereby driving the inner liner 3 to move vertically, thereby adjusting the distance between the inclined crushing wall 6 and the crushing cone inside the cone crusher frame 1, thus facilitating the adjustment of the crushing particle size and making it flexible and convenient to use.

[0023] In some technical solutions, such as Figure 1-3 As shown, the inner wall of the cone crusher frame 1 is provided with several mounting slots 10 with open tops at equal intervals, and the outer wall of the cone crusher frame 1 is provided with several mounting ears 5 at equal intervals. The outer wall of the outer liner 2 is fixedly connected with several mounting strips 7 that match the mounting slots 10 at equal intervals. The mounting strips 7 are located inside the mounting slots 10, and the mounting strips 7 are provided with threaded holes 11. The top of the mounting ears 5 is rotatably mounted with a rotating shaft 12. A fixing member 13 is sleeved and fixedly mounted on the rotating shaft 12. A threaded shaft 14 that matches the threaded hole 11 is threaded through and threadedly connected to the fixing member 13. The lower end of the threaded shaft 14 is located inside the threaded hole 11. The number of mounting slots 10, mounting strips 7 and mounting ears 5 are equal, and each mounting slot 10, each mounting strip 7 and each mounting ear 5 corresponds one-to-one.

[0024] In use, by unscrewing the lower end of the threaded shaft 14 from the inside of the threaded hole 11, and then rotating the fixing member 13 with the rotating shaft 12 as the center, the fixing member 13 and the threaded shaft 14 are moved out from above the mounting strip 7. Then, the mounting strip 7 is moved upward from the mounting groove 10, so that the outer liner 2 can be disassembled from the cone crusher frame 1. This facilitates the installation and disassembly of the bushing assembly and the cone crusher frame 1, increases the convenience of replacing the bushing assembly, and the one-to-one corresponding mounting groove 10, mounting strip 7 and mounting ear 5 improve the stability of the installation between the bushing assembly and the cone crusher frame 1.

[0025] In some technical solutions, such as Figure 2 As shown, a rubber ring 8 is fixedly connected to the inner wall of the outer liner 2, and the inner wall of the rubber ring 8 is in contact with the outer wall of the inner liner 3.

[0026] During use, the rubber ring 8 prevents the inner liner 3 from directly contacting the outer liner 2, thereby reducing friction between the inner liner 3 and the outer liner 2.

[0027] In some technical solutions, such as Figure 4 As shown, a protrusion 20 is fixedly installed on the bottom of the annular part 16.

[0028] In use, the ring-shaped part 16 can be easily rotated via the protrusion 20.

[0029] In some technical solutions, such as Figure 2 and Figure 4 As shown, a stop plate 9 is fixedly installed on the upper end of the lead screw 4.

[0030] During use, the baffle plate 9 prevents the inner liner 3 from slipping off the lead screw 4.

[0031] In some technical solutions, such as Figure 3 As shown, a knob 15 is fixedly installed on the upper end of the threaded shaft 14.

[0032] When in use, the threaded shaft 14 can be easily rotated by knob 15.

[0033] Working principle: During installation, each mounting strip 7 is inserted into each mounting slot 10, and then the rotating shaft 12 drives the fixing part 13 to rotate, so that the threaded shaft 14 is above the mounting strip 7. The knob 15 is used to rotate the threaded shaft 14, so that the lower end of the threaded shaft 14 enters the interior of the threaded hole 11, thus completing the bushing assembly and the cone crusher frame 1, which facilitates the replacement of the bushing assembly. During use, the protrusion 20 is used to rotate the annular part 16. Since the inner wall of the annular part 16 has a tooth groove 18 that matches the spur gear 19, it can drive all the spur gears 19 to rotate synchronously. The spur gears 19 drive the connecting shaft 17 to rotate, and all the connecting shafts 17 drive all the lead screws 4 to rotate synchronously, thereby driving the inner liner 3 to move vertically, thereby adjusting the distance between the inclined crushing wall 6 and the crushing cone inside the cone crusher frame 1, thus facilitating the adjustment of the crushing particle size.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-stability crusher frame bushing, comprising a cone crusher frame (1) and a bushing assembly, characterized in that: The bushing assembly includes an outer liner (2) and an inner liner (3). The outer liner (2) is located inside the cone crusher frame (1) and is adapted to the cone crusher frame (1). The inner liner (3) is located inside the outer liner (2) and is adapted to the outer liner (2). The inner wall of the inner liner (3) is provided with an inclined crushing wall (6). A connecting shaft (17) is equidistantly penetrating and rotatably connected to the outer edge of the outer liner (2), and a rotatably mounted on the outer edge of the outer liner (2) is also provided with a connecting shaft (17). The annular part (16) has a lead screw (4) fixedly installed at the upper end of the connecting shaft (17), and a spur gear (19) is sleeved and fixedly installed on the connecting shaft (17). The lead screw (4) passes through the inner liner (3) and is threadedly connected to the inner liner (3). The thread helix angle of the lead screw (4) is less than the equivalent friction angle. The inner wall of the annular part (16) has a tooth groove (18) that matches the spur gear (19), and the annular part (16) meshes with the spur gear (19).

2. The high-stability crusher frame bushing according to claim 1, characterized in that, The inner wall of the cone crusher frame (1) is provided with several mounting slots (10) with open tops at equal intervals, and the outer wall of the cone crusher frame (1) is provided with several mounting ears (5) at equal intervals. The outer wall of the outer liner (2) is fixedly connected with several mounting strips (7) that match the mounting slots (10) at equal intervals. The mounting strips (7) are located inside the mounting slots (10), and the mounting strips (7) are provided with threaded holes (11). The top of the mounting ears (5) is rotatably mounted with a rotating shaft (12). A fixing member (13) is sleeved and fixedly mounted on the rotating shaft (12). A threaded shaft (14) that matches the threaded hole (11) is threaded through and threadedly connected to the fixing member (13). The lower end of the threaded shaft (14) is located inside the threaded hole (11). The number of mounting slots (10), mounting strips (7) and mounting ears (5) is equal, and each mounting slot (10), each mounting strip (7) and each mounting ear (5) corresponds one-to-one.

3. The high-stability crusher frame bushing according to claim 1, characterized in that, A rubber ring (8) is fixedly connected to the inner wall of the outer liner (2), and the inner wall of the rubber ring (8) is in contact with the outer wall of the inner liner (3).

4. The high-stability crusher frame bushing according to claim 1, characterized in that, A protrusion (20) is fixedly installed at the bottom of the annular component (16).

5. A high-stability crusher frame bushing according to claim 1, characterized in that, A baffle (9) is fixedly installed at the upper end of the lead screw (4).

6. A high-stability crusher frame bushing according to claim 2, characterized in that, A knob (15) is fixedly installed on the upper end of the threaded shaft (14).

Images