Screen piece fixing structure for pulverizer
Through the design of the rotating shaft, locking assembly and screen frame, the problem of easy damage or material leakage in screen sheets under different thicknesses is solved, and the stable fixation and efficient crushing of screen sheets are achieved.
Patent Information
- Application Number
- CN202421950320.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The screen fixing structure of existing crushers is prone to crush when using thicker screens, and is prone to leaking materials when using thinner screens.
The design of the rotating shaft, locking assembly and screen frame is adopted. Through the cooperation of the hook and the clamping column, the sliding connection between the adjustment unit and the locking frame is combined with the sliding connection of the adjustment unit and the locking frame, the distance between the screen and the discharge port is adjusted to accommodate screens of different thicknesses.
It is achieved that the screen is not crushed or leaked in different thicknesses, and the service life and crushing efficiency of the screen are improved.
Smart Images
Figure CN223069652U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of crushers, and in particular to a screen fixing structure for a crusher. Background Art
[0002] Existing crushers are provided with a screening structure at the discharge port of the crushing chamber inside themselves. This screening structure generally includes a screen pressing frame and a screen. A rotating rod is provided on the outer shell of the crushing chamber below the discharge port. The bottom of the screen pressing frame is connected to the rotating rod and can turn around the rotating rod towards or away from the discharge port. A buckle is also provided on the screen pressing frame, and a buckle seat adapted to the buckle is provided on the outer shell of the crushing chamber above the discharge port, so that workers can place the screen at the discharge port first, and then connect the buckle on the screen pressing frame to the buckle seat to tightly press and fix the screen between the screen pressing frame and the edge of the discharge port.
[0003] However, since the distance between the screen pressing frame and the edge of the discharge port is relatively fixed when the buckle is connected to the buckle seat, when the screen used by the crusher is relatively thick, the screen pressing frame is likely to damage the screen; and when the screen used by the crusher is relatively thin, a relatively large gap is likely to appear between the screen and the edge of the discharge port, and then the materials in the crushing chamber are likely to leak out from these gaps.
[0004] In view of this, a screen fixing structure for a crusher is needed. Utility Model Content
[0005] In order to solve the problems that the existing screening structure is likely to damage the screen when using a relatively thick screen, and is likely to cause material leakage when using a relatively thin screen, the present application provides a screen fixing structure for a crusher.
[0006] The present application provides a screen fixing structure for a crusher, adopting the following technical solution: including a rotating shaft, a locking assembly and a screen pressing frame. The rotating shaft and the locking assembly are oppositely arranged on the outer shell of the crushing chamber of the crusher with the discharge port as the center. One side of the screen pressing frame is connected to the rotating shaft, and the other side of the screen pressing frame is provided with a hook and can turn around the rotating shaft towards or away from the locking assembly;
[0007] The locking assembly includes a connecting frame, a locking frame and an adjusting unit. One side of the connecting frame is hinged to the outer shell of the crushing chamber. A clamping column adapted to the hook is provided on the locking frame. When the hook is clamped on the clamping column, the screen pressing frame can tightly press the screen between the screen pressing frame and the edge of the discharge port;
[0008] The locking frame is slidably connected to the connecting frame and can drive the clamping column to approach or move away from the rotating shaft. The adjusting unit is arranged on the connecting frame and can limit the sliding of the locking frame along the connecting frame.
[0009] By adopting the above technical solution, the user can connect the pressing screen frame with the locking assembly by engaging the hook on the pressing screen frame with the engaging post on the locking frame, so that the pressing screen frame can press the screen against the edge between the pressing screen frame and the discharge port; the user can also adjust the distance between the engaging post and the rotating shaft through the cooperation of the locking frame and the adjusting unit, and then adjust the distance between the pressing screen frame and the edge of the discharge port when the hook is engaged with the engaging post. When the thickness of the screen is relatively thick, the distance between the pressing screen frame and the edge of the discharge port can be increased by moving the engaging post closer to the rotating shaft to ensure that the pressing screen frame does not damage the screen. When the thickness of the screen is relatively thin, the distance between the pressing screen frame and the edge of the discharge port can be decreased by moving the engaging post away from the rotating shaft, so that the material in the crushing chamber is not easily leaked from the gap between the screen and the edge of the discharge port.
[0010] Specifically, the locking frame includes an abutting plate, a rotating rod and a handle. A guiding rod is provided on the connecting frame. A sliding hole is formed in the abutting plate and the abutting plate is sleeved on the guiding rod through the sliding hole, and the abutting plate can slide along the guiding rod;
[0011] The middle part of the rotating rod is hinged to the end of the abutting plate. One end of the rotating rod is connected to the engaging post, and the other end of the rotating rod is connected to the handle. When the handle rotates towards the direction close to the rotating shaft, the hook can be clamped on the engaging post. When the handle rotates towards the direction away from the rotating shaft, the hook can be separated from the engaging post.
[0012] By adopting the above technical solution, the user can rotate the handle towards the direction close to the rotating shaft, so that the engaging post can drive the hook to rotate towards the direction away from the rotating shaft together, and finally the hook is clamped on the engaging post, and the pressing screen frame can press the screen against the edge between the pressing screen frame and the discharge port; the user can also rotate the handle towards the direction away from the rotating shaft, so that the engaging post can rotate towards the direction close to the rotating shaft, so that the hook can be removed from the engaging post and the screen between the pressing screen frame and the discharge port can be replaced.
[0013] Further, the adjusting unit includes a limiting ring, a locking bolt and an elastic member. The limiting ring is sleeved on the guiding rod and can slide along the guiding rod;
[0014] A threaded hole adapted to the locking bolt is formed in the limiting ring, and the screw end of the locking bolt can extend into the threaded hole and abut against the rod body of the guiding rod;
[0015] The elastic member is sleeved on the guide rod. A nut is screwed on one end of the guide rod close to the rotating shaft. One end of the elastic member abuts against the nut, and the other end of the elastic member extends away from the rotating shaft and can abut the abutting plate between the elastic member and the limiting ring.
[0016] By adopting the above technical solution, the user can lock the limiting ring on the rod body of the guide rod by screwing the locking bolt into the threaded hole of the limiting ring. The elastic member can abut the abutting plate between the elastic member and the limiting ring, so as to limit the movement of the abutting plate along the rod body of the guide rod through the cooperation of the limiting ring and the elastic member, and then limit the sliding of the locking frame on the connecting frame.
[0017] Further, an external thread section is provided on the rod body of one end of the guide rod close to the rotating shaft. A pair of nuts are screwed on the external thread section. The pair of nuts abut against each other and have opposite thread directions. The nut away from the rotating shaft in the pair of nuts can abut against the elastic member.
[0018] By adopting the above technical solution, the nut away from the rotating shaft in the pair of nuts can abut against the elastic member, and this nut can abut against the other nut and they have opposite thread directions, so that the nut abutting against the elastic member is not likely to become loose.
[0019] Further, it further includes a hook. The hook is arranged on the outer shell of the crushing chamber. When the handle rotates away from the rotating shaft, the handle can be hung on the hook.
[0020] By adopting the above technical solution, the user can hang the handle on the hook after rotating the handle away from the rotating shaft, so that the handle can be maintained in a state away from the rotating shaft, enabling the user to free both hands and facilitating the user to perform operations such as removing the hook from the clamping post and replacing the screen between the screen pressing frame and the discharge port, without the need for others to cooperate to maintain the handle in a state away from the rotating shaft.
[0021] Further, the screen pressing frame includes a frame and a plurality of screen pressing bars arranged inside the frame. The frame is connected to the rotating shaft;
[0022] Each of the screen pressing bars is arranged along the direction from the rotating shaft to the locking assembly, and each of the screen pressing bars can abut against the screen.
[0023] By adopting the above technical solution, the screen pressing bars can abut against the screen and support the screen.
[0024] Further, the screen pressing frame further includes connecting bars. The connecting bars are arranged along a direction perpendicular to the length direction of the screen pressing bars, and each of the screen pressing bars is connected to the connecting bars.
[0025] By adopting the above technical solution, each screen pressing strip can be connected to each other through the connecting strip to form an integral structure, so as to improve the strength of the screen pressing frame.
[0026] Furthermore, a reinforcing rib plate is provided at the connection between the screen pressing strip and the rotating shaft, and the reinforcing rib plate is connected to the side of the screen pressing strip facing away from the discharge port.
[0027] By adopting the above technical solution, the reinforcing rib plate can strengthen the connection between the screen pressing strip and the rotating shaft, so that the screen pressing strip is not easily broken in the direction away from the discharge port due to pressure.
[0028] In summary, the present application includes the following beneficial technical effects:
[0029] It includes a rotating shaft, a locking assembly and a screen pressing frame. The rotating shaft and the locking assembly are oppositely arranged on the outer shell of the crushing chamber of the crusher with the discharge port as the center. One side of the screen pressing frame is connected to the rotating shaft, and the other side of the screen pressing frame is provided with a hook and can rotate around the rotating shaft or turn away from the locking assembly; the locking assembly includes a connecting frame, a locking frame and an adjusting unit. One side of the connecting frame is hinged to the outer shell of the crushing chamber. The locking frame is provided with a clamping column adapted to the hook. When the hook is clamped on the clamping column, the screen pressing frame can press the screen against the edge between the screen pressing frame and the discharge port; the locking frame is slidably connected to the connecting frame and can drive the clamping column to approach or move away from the rotating shaft. The adjusting unit is arranged on the connecting frame and can limit the sliding of the locking frame along the connecting frame, so that the user can adjust the distance between the screen pressing frame and the edge of the discharge port when the hook is clamped with the clamping column through the cooperation of the locking frame and the adjusting unit. When the thickness of the screen is relatively thick, the distance between the screen pressing frame and the edge of the discharge port can be increased to ensure that the screen pressing frame does not damage the screen, and when the thickness of the screen is relatively thin, the distance between the screen pressing frame and the edge of the discharge port can be reduced to prevent the material in the crushing chamber from leaking out from the gap between the screen and the edge of the discharge port. Description of the Drawings
[0030] Figure 1 is a perspective view of a screen fixing structure for a crusher of the present application;
[0031] Figure 2 is Figure 1 a schematic enlarged view of area A in
[0032] Reference Signs: 1, crushing chamber; 11, discharge port; 2, sieve plate; 3, rotating shaft; 4, locking assembly; 41, connecting frame; 411, guide rod; 4111, nut; 42, locking frame; 421, clamping post; 422, abutting plate; 423, rotating rod; 424, handle; 43, adjusting unit; 431, limiting ring; 432, locking bolt; 433, elastic member; 5, sieve pressing frame; 51, hook; 52, frame; 53, sieve mesh pressing strip; 54, connecting pressing strip; 6, hanging hook; 7, reinforcing rib plate. Detailed Description of the Invention
[0033] Figure 1 FIG. is a perspective view of a sieve plate fixing structure for a crusher according to the present application. Figure 2 is Figure 1 a schematic enlarged view of area A in FIG., in which a locking assembly is shown. Refer to Figure 1 and Figure 2 A sieve plate fixing structure for a crusher provided by the present application includes: a rotating shaft 3, a locking assembly 4 and a sieve pressing frame 5. The rotating shaft 3 and the locking assembly 4 are oppositely arranged on the outer shell of the crushing chamber 1 of the crusher with the discharge port 11 as the center. One side of the sieve pressing frame 5 is connected to the rotating shaft 3, and the other side of the sieve pressing frame 5 is provided with a hook 51 and can turn towards or away from the locking assembly 4 around the rotating shaft 3. The user can connect the sieve pressing frame 5 with the locking assembly 4 to press the sieve plate 2 tightly between the sieve pressing frame 5 and the edge of the discharge port 11.
[0034] Specifically, the sieve pressing frame 5 includes a frame 52, a plurality of sieve mesh pressing strips 53 arranged inside the frame 52, and a connecting pressing strip 54. The frame 52 is connected to the rotating shaft 3; each sieve mesh pressing strip 53 is arranged along the direction from the rotating shaft 3 to the locking assembly 4, and each sieve mesh pressing strip 53 can abut against the sieve plate 2 and support the sieve plate 2; the connecting pressing strip 54 is arranged along the direction perpendicular to the length direction of the sieve mesh pressing strip 53, and each sieve mesh pressing strip 53 is connected to the connecting pressing strip 54 so that each sieve mesh pressing strip 53 can be connected to each other through the connecting pressing strip 54 to form an integral structure, thereby improving the strength of the sieve pressing frame 5.
[0035] Preferably, a reinforcing rib plate 7 can be arranged at the connection between the sieve mesh pressing strip 53 and the rotating shaft 3. The reinforcing rib plate 7 is connected to the side of the sieve mesh pressing strip 53 facing away from the discharge port 11, so as to strengthen the connection between the sieve mesh pressing strip 53 and the rotating shaft 3 through the reinforcing rib plate 7, so that the sieve mesh pressing strip 53 is not easily broken in the direction away from the discharge port 11 due to pressure.
[0036] Refer to Figure 1 and Figure 2, the locking assembly 4 includes a connecting frame 41, a locking frame 42 and an adjusting unit 43. One side of the connecting frame 41 is hinged to the outer shell of the crushing chamber 1. The locking frame 42 includes a clamping post 421 adapted to the hook 51, a butting plate 422, a rotating rod 423 and a handle 424. A guiding rod 411 is provided on the connecting frame 41. A sliding hole is formed in the butting plate 422 and the butting plate 422 is sleeved on the guiding rod 411 through the sliding hole, and the butting plate 422 can drive the clamping post 421 to approach or move away from the rotating shaft 3 along the guiding rod 411; the middle part of the rotating rod 423 is hinged to the end of the butting plate 422. One end of the rotating rod 423 is connected to the clamping post 421, and the other end of the rotating rod 423 is connected to the handle 424, so that the user can rotate the handle 424 in the direction close to the rotating shaft 3 to drive the hook 51 to rotate in the direction away from the rotating shaft 3 together, and finally make the hook 51 clamped on the clamping post 421, and the pressing screen frame 5 can press the screen 2 tightly between the pressing screen frame 5 and the edge of the discharge port 11; the user can also rotate the handle 424 in the direction away from the rotating shaft 3, so that the clamping post 421 can rotate in the direction close to the rotating shaft 3, so that the hook 51 can be removed from the clamping post 421 and the screen 2 between the pressing screen frame 5 and the discharge port 11 can be replaced.
[0037] See Figure 1 and Figure 2 , the adjusting unit 43 includes a limiting ring 431, a locking bolt 432 and an elastic member 433. The limiting ring 431 is sleeved on the guiding rod 411 and can slide along the guiding rod 411; a threaded hole adapted to the locking bolt 432 is formed in the limiting ring 431, and the screw end of the locking bolt 432 can extend into the threaded hole and abut against the rod body of the guiding rod 411; the elastic member 433 is sleeved on the guiding rod 411. A nut 4111 is screwed on one end of the guiding rod 411 close to the rotating shaft 3. One end of the elastic member 433 abuts against the nut 4111, and the other end of the elastic member 433 extends in the direction away from the rotating shaft 3. The elastic member 433 can be a compression spring, so as to be able to abut the butting plate 422 between the elastic member 433 and the limiting ring 431 through the compression spring.
[0038] With the above design, the user can lock the limiting ring 431 on the rod body of the guide rod 411 by screwing the locking bolt 432 into the threaded hole of the limiting ring 431, and the elastic member 433 can abut the abutting plate 422 between the elastic member 433 and the limiting ring 431, so as to limit the movement of the abutting plate 422 along the rod body of the guide rod 411 through the cooperation of the limiting ring 431 and the elastic member 433, and then limit the sliding of the locking frame 42 on the connecting frame 41, so as to be able to adjust the distance between the pressing screen frame 5 and the edge of the discharge port 11 when the hook 51 is clamped with the clamping column 421. That is, when the thickness of the screen 2 is relatively thick, the distance between the pressing screen frame 5 and the edge of the discharge port 11 can be enlarged by moving the limiting ring 431 closer to the rotating shaft 3 to ensure that the pressing screen frame 5 does not damage the screen 2. When the thickness of the screen 2 is relatively thin, the distance between the pressing screen frame 5 and the edge of the discharge port 11 can be reduced by moving the limiting ring 431 away from the rotating shaft 3, so that the materials in the crushing chamber 1 are not easily leaked from the gap between the screen 2 and the edge of the discharge port 11.
[0039] See Figure 1 and Figure 2 , an external thread section is provided on the rod body of one end of the guide rod 411 close to the rotating shaft 3. A pair of nuts 4111 are screwed on the external thread section. The pair of nuts 4111 abut against each other and have opposite thread directions. The nut 4111 away from the rotating shaft 3 in the pair of nuts 4111 can abut against the elastic member 433, and the nut 4111 can abut against the other nut 4111, so that the nut 4111 abutting against the elastic member 433 is not easily loosened.
[0040] See Figure 1 and Figure 2 , a sieve fixing structure for a crusher further includes a hook 6. The hook 6 is provided on the outer shell of the crushing chamber 1. When the handle 424 rotates in a direction away from the rotating shaft 3, the handle 424 can be hung on the hook 6. With the above design, the user can hang the handle 424 on the hook 6 after rotating the handle 424 in a direction away from the rotating shaft 3, so that the handle 424 can be maintained in a state away from the rotating shaft 3, enabling the user to free both hands, facilitating the user to perform operations such as removing the hook 51 from the clamping column 421 and replacing the screen 2 between the pressing screen frame 5 and the discharge port 11, without the need for others to cooperate to keep the handle 424 in a state away from the rotating shaft 3.
[0041] The working principle of a sieve fixing structure for a crusher in the present application during use is specifically as follows:
[0042] It includes a rotating shaft 3, a locking component 4 and a screen pressing frame 5. The rotating shaft 3 and the locking component 4 are oppositely arranged on the outer shell of the crushing chamber 1 of the crusher with the discharge port 11 as the center. One side of the screen pressing frame 5 is connected to the rotating shaft 3, and a hook 51 is provided on the other side of the screen pressing frame 5 and can turn around the rotating shaft 3 towards or away from the locking component 4. The locking component 4 includes a connecting frame 41, a locking frame 42 and an adjusting unit 43. One side of the connecting frame 41 is hinged to the outer shell of the crushing chamber 1. A clamping post 421 adapted to the hook 51 is provided on the locking frame 42. When the hook 51 is clamped on the clamping post 421, the screen pressing frame 5 can press the screen 2 tightly between the screen pressing frame 5 and the edge of the discharge port 11. The locking frame 42 is slidably connected to the connecting frame 41 and can drive the clamping post 421 to approach or move away from the rotating shaft 3. The adjusting unit 43 is arranged on the connecting frame 41 and can limit the sliding of the locking frame 42 along the connecting frame 41, so that the user can adjust the distance between the screen pressing frame 5 and the edge of the discharge port 11 when the hook 51 is clamped with the clamping post 421 through the cooperation of the locking frame 42 and the adjusting unit 43. When the thickness of the screen 2 is relatively thick, the distance between the screen pressing frame 5 and the edge of the discharge port 11 can be enlarged to ensure that the screen pressing frame 5 will not damage the screen 2. When the thickness of the screen 2 is relatively thin, the distance between the screen pressing frame 5 and the edge of the discharge port 11 can be reduced to prevent the materials in the crushing chamber 1 from leaking out through the gap between the screen 2 and the edge of the discharge port 11.
[0043] It should be noted that the above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A sieve plate fixing structure for a crusher, used to fix the sieve plate at the discharge port of the crushing chamber of the crusher, characterized in that: It includes a rotating shaft (3), a locking component (4) and a screen pressing frame (5). The rotating shaft (3) and the locking component (4) are oppositely arranged on the outer shell of the crushing chamber (1) with the discharge port (11) as the center. One side of the screen pressing frame (5) is connected to the rotating shaft (3), and a hook (51) is provided on the other side of the screen pressing frame (5) and can turn around the rotating shaft (3) towards or away from the locking component (4); The locking component (4) includes a connecting frame (41), a locking frame (42) and an adjusting unit (43). One side of the connecting frame (41) is hinged to the outer shell of the crushing chamber (1). A clamping post (421) adapted to the hook (51) is provided on the locking frame (42). When the hook (51) is clamped on the clamping post (421), the screen pressing frame (5) can press the screen (2) tightly between the screen pressing frame (5) and the edge of the discharge port (11); The locking frame (42) is slidably connected to the connecting frame (41) and can drive the clamping post (421) to approach or move away from the rotating shaft (3). The adjusting unit (43) is arranged on the connecting frame (41) and can limit the sliding of the locking frame (42) along the connecting frame (41).
2. The sieve plate fixing structure for a crusher according to claim 1, characterized in that: The locking frame (42) includes a contact plate (422), a rotating rod (423) and a handle (424). A guide rod (411) is provided on the connecting frame (41). A sliding hole is formed in the contact plate (422) and the contact plate (422) is sleeved on the guide rod (411) through the sliding hole, and the contact plate (422) can slide along the guide rod (411); The middle part of the rotating rod (423) is hinged to the end of the contact plate (422). One end of the rotating rod (423) is connected to the clamping post (421), and the other end of the rotating rod (423) is connected to the handle (424). When the handle (424) rotates towards the direction close to the rotating shaft (3), the hook (51) can be clamped on the clamping post (421). When the handle (424) rotates towards the direction away from the rotating shaft (3), the hook (51) can be separated from the clamping post (421).
3. A sieve plate fixing structure for a crusher according to claim 2, characterized in that: The adjusting unit (43) includes a limiting ring (431), a locking bolt (432) and an elastic member (433). The limiting ring (431) is sleeved on the guide rod (411) and can slide along the guide rod (411); A threaded hole adapted to the locking bolt (432) is formed in the limiting ring (431). The screw end of the locking bolt (432) can extend into the threaded hole and abut against the rod body of the guide rod (411); The elastic member (433) is sleeved on the guide rod (411). A nut (4111) is screwed on one end of the guide rod (411) close to the rotation shaft (3). One end of the elastic member (433) abuts against the nut (4111), and the other end of the elastic member (433) extends away from the rotation shaft (3) and can abut the abutting plate (422) between the elastic member (433) and the limiting ring (431).
4. A sieve plate fixing structure for a crusher according to claim 3, characterized in that: An external thread section is provided on the rod body of one end of the guide rod (411) close to the rotation shaft (3). A pair of nuts (4111) are screwed on the external thread section. The pair of nuts (4111) abut against each other and have opposite thread directions. The nut of the pair of nuts (4111) that is far from the rotation shaft (3) can abut against the elastic member (433).
5. The sieve plate fixing structure for a crusher according to claim 2, characterized in that: It further includes a hook (6). The hook (6) is provided on the outer shell of the crushing chamber (1). When the handle (424) rotates away from the rotation shaft (3), the handle (424) can be hooked on the hook (6).
6. The screen fixing structure for a crusher according to claim 1, characterized in that: The screen pressing frame (5) includes a frame (52) and a plurality of screen pressing bars (53) arranged inside the frame (52). The frame (52) is connected to the rotation shaft (3). Each of the screen pressing bars (53) is arranged along the direction from the rotation shaft (3) to the locking assembly (4), and each of the screen pressing bars (53) can abut against the screen (2).
7. The screen fixing structure for a crusher according to claim 6, wherein: The screen pressing frame (5) further includes a connecting bar (54). The connecting bar (54) is arranged along the direction perpendicular to the length direction of the screen pressing bar (53). Each of the screen pressing bars (53) is connected to the connecting bar (54).
8. The fixed structure of the sieve plate for a crusher according to claim 6, characterized in that: A reinforcing rib plate (7) is provided at the connection between the screen pressing bar (53) and the rotation shaft (3). The reinforcing rib plate (7) is connected to the side of the screen pressing bar (53) facing away from the discharge port (11).