Device for quickly replacing screen

Abstract

The utility model discloses a device for quickly replacing a screen, which relates to the technical field of screen replacement, and comprises a door-type frame, a lifting device and a plurality of locking devices, the locking devices are used for connecting the lifting device and a circular swinging screen, the lifting device is positioned on the inner side of the door-type frame, and the lifting device drives the circular swinging screen to move through the plurality of locking devices. The lifting device comprises a horizontal moving part and a lifting part, the horizontal moving part is located at the upper end of the gate-type frame and located on the inner side of the gate-type frame, the horizontal moving part is used for driving the lifting part to move in the horizontal direction, the lifting part is located below the horizontal moving part and used for lifting the circular swinging screen, and the locking device is connected with the lifting part and the circular swinging screen. The device has the effect of improving the replacement efficiency of the circular swinging screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of screen replacement technology, especially to a device for quickly replacing a screen. BACKGROUND

[0002] Currently, when screening materials in the industry, a circular swing screen or a square swing screen is usually used for coarse screening and fine screening. The circular swing screen is a screening machine widely used in various screening and filtering industries, and is used in the production processes of chemical industry, food industry, pharmaceutical industry, and mining industry.

[0003] In the prior art, materials of different particle sizes are placed in the uppermost circular swing screen during the screening process. The vibration table drives the shaking of multiple circular swing screens, so that the materials are effectively screened and separated under the action of vibration. Through this screening method, materials of different particle sizes are gradually screened out, and finally the products meeting the industrial standard requirements are selected.

[0004] According to the related technology described above, when switching between different types or particle sizes of materials, the screen matching the materials needs to be replaced. Since the diameter of the screening machine is large and the weight of the circular swing screen is heavy, the replacement process of the circular swing screen is not convenient and efficient. SUMMARY

[0005] To improve the efficiency of replacing the circular swing screen, the application provides a device for quickly replacing a screen.

[0006] The application provides a device for quickly replacing a screen, which adopts the following technical solution:

[0007] The device for quickly replacing a screen includes a portal frame, a lifting device, and a plurality of locking devices. The locking devices are used to connect the lifting device and the circular swing screen. The lifting device is located inside the portal frame. The lifting device moves the circular swing screen through the plurality of locking devices. The lifting device includes a horizontal moving part and a lifting part. The horizontal moving part is located at the upper end of the portal frame and inside the portal frame. The horizontal moving part is used to move the lifting part in the horizontal direction. The lifting part is located below the horizontal moving part. The lifting part is used to lift the circular swing screen. The locking devices connect the lifting part and the circular swing screen.

[0008] By adopting the above technical solution, the portal frame supports the lifting device. The plurality of locking devices are connected to the lifting device. The lifting device moves the circular swing screen through the locking devices. The lifting part controls the lifting of the circular swing screen during the movement. The horizontal moving part controls the horizontal displacement of the circular swing screen. The efficiency of replacing the circular swing screen is improved.

[0009] Optionally, the horizontal moving part comprises a supporting block, a lead screw and a first motor, the supporting block is fixedly connected to the inner side of the portal frame and horizontally arranged along the length direction of the portal frame, a sliding groove is formed in the lower end of the supporting block along the length direction, a sliding block is arranged in the sliding groove, the sliding block is attached to the sliding groove, the sliding block is slidingly connected to the supporting block along the length direction of the sliding groove, the first motor is fixedly connected to one side of the portal frame along the length direction, the lead screw is fixedly connected to the output shaft of the first motor and passes through the supporting block and the sliding block, the lead screw is rotatably connected to the supporting block, and the lead screw is threadedly connected to the sliding block, the lifting part is located below the sliding block, and the sliding block moves to drive the lifting part to move.

[0010] By adopting the above technical scheme, the supporting block supports the sliding block, the first motor drives the lead screw to rotate, the sliding block drives the lifting part to slide along the length direction of the sliding groove, and the convenience of horizontal movement of the lifting part is improved.

[0011] Optionally, a plurality of grooves are formed in the supporting block along the length direction and communicated with the sliding groove, a plurality of balls are arranged in the grooves, the plurality of balls are arranged along the length direction of the grooves, the balls are rotatably connected to the supporting block, and the balls are rollingly connected to the sliding block.

[0012] By adopting the above technical scheme, when the sliding block moves, the sliding block moves above the balls, the plurality of balls rotate in the grooves, the balls support and drive the sliding block, and the convenience of movement of the sliding block is improved.

[0013] Optionally, the lifting part comprises a first pulley, a second pulley, a winding wheel, a steel wire rope and a second motor, the first pulley is fixedly connected to the lower end of the sliding block, the second pulley is fixedly connected to the lower end of the supporting block and located on the side of the supporting block close to the first motor, the winding wheel is fixedly connected to the side of the portal frame close to the first motor and located below the first motor, the second motor is fixedly connected to the side of the winding wheel away from the portal frame, the second motor is used to drive the winding wheel to rotate, the steel wire rope passes the winding wheel, the second pulley and the first pulley in sequence, one end of the steel wire rope away from the winding wheel is fixedly provided with a circular ring, the locking device is connected to the circular ring, and the circular ring moves to drive the locking device to move.

[0014] By adopting the above technical scheme, the second motor drives the winding wheel to rotate to wind the steel wire rope, the first pulley and the second pulley support the steel wire rope, the circular ring moves close to the first pulley, the circular ring lifts the circular swing screen through the locking device, and the convenience of lifting of the circular swing screen is improved.

[0015] Optionally, the plurality of circular swing screens are arranged in the vertical direction, a plurality of fixing blocks are uniformly and fixedly arranged on the outer side of the circular swing screens in the circumferential direction, the plurality of fixing blocks are arranged in the vertical direction, bolt holes are formed in the fixing blocks along the width direction, and the locking device is connected to the fixing blocks to fix the circular swing screens.

[0016] By adopting the above technical scheme, the locking device is connected with the bolt hole on the fixing block to fix the circular swing screen, and the stability of lifting the circular swing screen is improved.

[0017] Optionally, the locking device comprises a chain and a lifting ring, one end of the chain is fixedly connected with the ring, the other end of the chain is fixedly connected with the lifting ring, the fixing block is located inside the lifting ring, one side of the lifting ring is provided with a fixing bolt, the fixing bolt passes through the lifting ring and the bolt hole, one end of the fixing bolt along the length direction is sleeved with a nut, the nut is threadedly connected with the fixing bolt, the fixing bolt is slidably connected with the lifting ring, and the fixing bolt and the nut cooperate to fix the lifting ring and the fixing block.

[0018] By adopting the above technical scheme, the fixing bolt and the nut cooperate to fix the lifting ring and the fixing block, the ring drives the circular swing screen to be lifted through the chain, and the stability of lifting the circular swing screen is improved.

[0019] Optionally, a plurality of connecting plates are uniformly and fixedly arranged on the outer side of the circular swing screen in the circumferential direction, the connecting plates are arranged in the vertical direction and located at the upper end of the circular swing screen, one side of the connecting plate away from the circular swing screen is provided with a threaded rod, the threaded rod passes through the connecting plate and abuts against the upper circular swing screen, and the threaded rod is arranged perpendicularly to the connecting plate and is threadedly connected with the connecting plate.

[0020] By adopting the above technical scheme, when two circular swing screens need to be lifted at the same time, the threaded rod on the connecting plate is rotated, the threaded rod abuts against the upper circular swing screen, the two circular swing screens are fixed, and the efficiency of replacing the circular swing screen is improved.

[0021] Optionally, a spring is sleeved outside the threaded rod, and the spring is located at the side of the connecting plate away from the circular swing screen, and is arranged horizontally and fixedly connected with the connecting plate.

[0022] By adopting the above technical scheme, in the natural state, the spring pushes the threaded rod to move away from the connecting plate, and the convenience of separating two adjacent circular swing screens is improved.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The second motor drives the winding wheel to rotate to wind the steel wire rope, the first pulley and the second pulley support the steel wire rope, the steel wire rope lifts the circular swing screen through the ring and the locking device, the first motor drives the lead screw to rotate, and the sliding block drives the first pulley to reciprocate towards or away from the second pulley, thereby improving the efficiency of replacing the circular swing screen;

[0025] 2. The fixing bolt passes through the bolt hole on the lifting ring and the fixing block, the nut and the fixing bolt cooperate to fix the lifting ring and the fixing block, the ring drives the circular swing screen to move through the chain, and the stability of moving the circular swing screen is improved.

[0026] 3. When two circular swing screens need to be lifted at the same time, rotate the threaded rod on the connecting plate, which is in contact with the upper circular swing screen, to fix the two circular swing screens, improving the efficiency of replacing the circular swing screen. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a device for quickly replacing the screen.

[0028] Figure 2 It is a schematic diagram intended to highlight the structure of the horizontal moving part.

[0029] Figure 3 It is a schematic diagram intended to highlight the internal structure of the support block.

[0030] Figure 4 It is a schematic diagram intended to highlight the structure of the lifting part.

[0031] Figure 5 It is a schematic diagram intended to highlight the connection relationship between the locking structure and the circular swing screen.

[0032] BRIEF DESCRIPTION OF DRAWINGS: 1, portal frame; 2, lifting device; 21, horizontal moving part; 211, support block; 212, lead screw; 213, first motor; 214, sliding groove; 215, sliding block; 216, groove; 217, ball; 22, lifting part; 221, first pulley; 222, second pulley; 223, winding wheel; 224, steel wire rope; 225, second motor; 226, ring; 3, locking device; 31, chain; 32, lifting ring; 33, fixing bolt; 34, nut; 4, circular swing screen; 41, fixed block; 42, bolt hole; 43, connecting plate; 44, threaded rod; 45, spring. DETAILED DESCRIPTION

[0033] The present application will be further described in detail below in conjunction with all the drawings.

[0034] The present application discloses a device for quickly replacing the screen. EMBODIMENT

[0035] REFERENCE Figure 1The utility model provides a device for quickly replacing screen, including portal frame 1, lifting device 2 and a plurality of locking device 3, locking device 3 is used to connect lifting device 2 and circular swing screen 4, lifting device 2 is located inside portal frame 1, and portal frame 1 supports lifting device 2, and lifting device 2 moves circular swing screen 4 through a plurality of locking device 3.

[0036] With reference to Figure 1 And Figure 2 Horizontal moving piece 21 includes support block 211, lead screw 212 and first motor 213, support block 211 is fixedly connected to the inside of portal frame 1 and is arranged horizontally along the length direction of portal frame 1, the lower end of support block 211 is provided with sliding groove 214 along the length direction, sliding groove 214 is provided with sliding block 215, and sliding block 215 can reciprocate along the length direction of sliding groove 214, first motor 213 is fixedly connected to the length direction of one side of portal frame 1, lead screw 212 is fixedly connected to the output shaft of first motor 213 and passes through support block 211 and sliding block 215, lead screw 212 is rotatably connected with support block 211 and is screwedly connected with sliding block 215, first motor 213 drives lead screw 212 to rotate, and sliding block 215 slides along the length direction of sliding groove 214, lifting member 22 is located at the lower end of sliding block 215, and sliding block 215 moves to drive lifting member 22 to move, so that the convenience of horizontal movement of lifting member 22 is improved.

[0037] With reference to Figure 3 Support block 211 is provided with a plurality of grooves 216 communicated with sliding groove 214 along the length direction, a plurality of balls 217 are arranged in the grooves 216, the plurality of balls 217 are arranged along the length direction of the grooves 216, the balls 217 are rotatably connected with the support block 211 and rollably connected with the sliding block 215, when the sliding block 215 moves, the sliding block 215 moves above the balls 217, the plurality of balls 217 rotate in the grooves 216, the balls 217 support and drive the sliding block 215, so that the convenience of movement of the sliding block 215 is improved.

[0038] With reference to Figure 4The lifting piece 22 comprises a first pulley 221, a second pulley 222, a winding wheel 223, a steel wire rope 224 and a second motor 225. The first pulley 221 is fixedly connected to the lower end of the sliding block 215. The sliding block 215 moves to drive the first pulley 221 to move. The second pulley 222 is fixedly connected to the lower end of the supporting block 211 and located at the side of the supporting block 211 close to the first motor 213. The winding wheel 223 is fixedly connected to the side of the portal frame 1 close to the first motor 213 and located below the first motor 213. The steel wire rope 224 is wound over the winding wheel 223, the second pulley 222 and the first pulley 221 in sequence. The winding wheel 223 winds the steel wire rope 224. The first pulley 221 and the second pulley 222 support and guide the steel wire rope 224. The second motor 225 is fixedly connected to the side of the winding wheel 223 away from the portal frame 1. The second motor 225 is used to drive the winding wheel 223 to rotate. One end of the steel wire rope 224 away from the winding wheel 223 is fixedly provided with a ring 226. The locking device 3 is connected with the ring 226. The ring 226 is close to the first pulley 221. The ring 226 lifts the circular swinging screen 4 through the locking device 3. The convenience of lifting the circular swinging screen 4 is improved.

[0039] With reference to Figure 1 and Figure 5 The locking device 3 comprises a chain 31 and a lifting ring 32. One end of the chain 31 is fixedly connected with the ring 226. The other end of the chain 31 is fixedly connected with the lifting ring 32. One side of the lifting ring 32 is provided with a fixing bolt 33. The fixing bolt 33 penetrates through the lifting ring 32. The fixing bolt 33 is slidably connected with the lifting ring 32 along the length direction of the fixing bolt 33. One end of the fixing bolt 33 along the length direction is sleeved with a nut 34. The nut 34 is threadedly connected with the fixing bolt 33. The nut 34, the fixing bolt 33 and the lifting ring 32 are matched to fix the circular swinging screen 4. The stability of the circular swinging screen 4 during movement is improved.

[0040] With reference to Figure 1 and Figure 5 The plurality of circular swinging screens 4 are arranged along the vertical direction. A plurality of fixing blocks 41 are uniformly fixedly arranged on the outer side of the circular swinging screen 4 along the circumferential direction. The plurality of fixing blocks 41 are arranged along the vertical direction. The fixing block 41 is provided with a bolt hole 42 along the width direction. The fixing bolt 33 penetrates through the lifting ring 32 and the bolt hole 42. The fixing bolt 33 and the nut 34 are matched to fix the lifting ring 32 and the fixing block 41. The ring 226 drives the circular swinging screen 4 to lift through the chain 31. The stability of lifting the circular swinging screen 4 is improved.

[0041] With reference to Figure 1 and Figure 5, a plurality of connecting plates 43 are uniformly and circumferentially arranged outside the circular swinging screen 4, the connecting plates 43 are arranged vertically and located at the upper end of the circular swinging screen 4, a threaded rod 44 is arranged on the side of the connecting plate 43 away from the circular swinging screen 4, the connecting plate 43 supports the threaded rod 44, the threaded rod 44 penetrates through the connecting plate 43 and abuts against the upper circular swinging screen 4, the threaded rod 44 is arranged perpendicularly to the connecting plate 43 and is threadedly connected with the connecting plate 43. When it is needed to simultaneously lift two circular swinging screens 4, the threaded rod 44 on the connecting plate 43 is rotated, the threaded rod 44 abuts against the upper circular swinging screen 4, and the two circular swinging screens 4 are fixed.

[0042] With reference to Figure 1 and Figure 5 , a spring 45 is arranged outside the threaded rod 44, the spring 45 is located on the side of the connecting plate 43 away from the circular swinging screen 4, the spring 45 is arranged horizontally and is fixedly connected with the connecting plate 43, in the natural state, the spring 45 pushes the threaded rod 44 to move away from the connecting plate 43, and the convenience of separating the two adjacent circular swinging screens 4 is improved.

[0043] The implementation principle of the device for quickly replacing the screen is as follows: the threaded rod 44 is rotated, the threaded rod 44 abuts against the upper circular swinging screen 4, and the two adjacent circular swinging screens 4 are fixed, the fixing bolt 33 penetrates through the lifting ring 32 and the threaded hole, the fixing bolt 33 and the nut 34 cooperate to fix the lifting ring 32 and the fixing block 41, the second motor 225 drives the winding wheel 223 to wind the steel wire rope 224, the circular ring 226 moves close to the first pulley 221, the circular ring 226 drives the circular swinging screen 4 to move vertically through the chain 31, the first motor 213 drives the lead screw 212 to rotate, the sliding block 215 drives the first pulley 221 to move close to the second pulley 222, the horizontal movement of the circular swinging screen 4 is realized, and the efficiency of replacing the circular swinging screen 4 is improved.

[0044] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered into the protection scope of the present application.

Claims

1. A device for quickly changing a screen, comprising a gantry frame (1), a lifting device (2), and a plurality of locking devices (3), wherein the locking devices (3) are used to connect the lifting device (2) and a circular gyratory screen (4), the lifting device (2) is located inside the gantry frame (1), and the lifting device (2) drives the circular gyratory screen (4) to move through the plurality of locking devices (3), characterized in that: The lifting device (2) includes a horizontal moving part (21) and a lifting part (22). The horizontal moving part (21) is located at the upper end of the gantry frame (1) and inside the gantry frame (1). The horizontal moving part (21) is used to drive the lifting part (22) to move in the horizontal direction. The lifting part (22) is located below the horizontal moving part (21). The lifting part (22) is used to lift the circular gyratory screen (4). The locking device (3) connects the lifting part (22) and the circular gyratory screen (4).

2. The device for quickly changing a screen according to claim 1, characterized in that: The horizontal moving component (21) includes a support block (211), a lead screw (212), and a first motor (213). The support block (211) is fixedly connected to the inner side of the portal frame (1) and is horizontally arranged along the length direction of the portal frame (1). A sliding groove (214) is provided at the lower end of the support block (211) along the length direction. A slider (215) is provided in the sliding groove (214). The slider (215) fits into the sliding groove (214). The slider (215) moves along the length direction of the sliding groove (214) and the support block (213). The support block (211) is slidably connected, the first motor (213) is fixedly connected to one side of the portal frame (1) along the length direction, the lead screw (212) is fixedly connected to the output shaft of the first motor (213) and passes through the support block (211) and the slider (215), the lead screw (212) is rotatably connected to the support block (211), the lead screw (212) is threadedly connected to the slider (215), the lifting member (22) is located below the slider (215), and the movement of the slider (215) drives the lifting member (22) to move.

3. The device for quickly changing a screen according to claim 2, characterized in that: The support block (211) has several grooves (216) along its length that communicate with the sliding groove (214). Several spheres (217) are arranged in the grooves (216) along the length of the grooves (216). The spheres (217) are rotatably connected to the support block (211) and are rotatably connected to the slider (215).

4. The device for quickly changing a screen according to claim 2, characterized in that: The lifting component (22) includes a first pulley (221), a second pulley (222), a winding wheel (223), a wire rope (224), and a second motor (225). The first pulley (221) is fixedly connected to the lower end of the slider (215). The second pulley (222) is fixedly connected to the lower end of the support block (211) and located on the side of the support block (211) near the first motor (213). The winding wheel (223) is fixedly connected to the side of the gantry frame (1) near the first motor (213) and located on the side of the first motor (213). Below 213), the second motor (225) is fixedly connected to the side of the winding wheel (223) away from the gantry frame (1). The second motor (225) is used to drive the winding wheel (223) to rotate. The wire rope (224) passes through the winding wheel (223), the second pulley (222) and the first pulley (221) in sequence. A ring (226) is fixed at one end of the wire rope (224) away from the winding wheel (223). The locking device (3) is connected to the ring (226). The movement of the ring (226) drives the locking device (3) to move.

5. The device for quickly changing a screen according to claim 1, characterized in that: The circular oscillating screens (4) are arranged vertically. A number of fixing blocks (41) are uniformly fixed on the outer side of the circular oscillating screens (4) along the circumference. The fixing blocks (41) are arranged vertically. Bolt holes (42) are opened in the width direction of the fixing blocks (41). The locking device (3) is connected to the fixing blocks (41) and is used to fix the circular oscillating screens (4).

6. The device for quickly changing a screen according to claim 4, characterized in that: The locking device (3) includes a chain (31) and a hanging ring (32). One end of the chain (31) is fixedly connected to a circular ring (226), and the other end of the chain (31) is fixedly connected to the hanging ring (32). A fixing block (41) is located inside the hanging ring (32). A fixing bolt (33) is provided on one side of the hanging ring (32). The fixing bolt (33) passes through the hanging ring (32) and the bolt hole (42). A nut (34) is fitted on one end of the fixing bolt (33) along the length direction. The nut (34) is threadedly connected to the fixing bolt (33). The fixing bolt (33) is slidably connected to the hanging ring (32). The fixing bolt (33) and the nut (34) cooperate to fix the hanging ring (32) and the fixing block (41).

7. The device for quickly changing a screen according to claim 1, characterized in that: A plurality of connecting plates (43) are uniformly fixed along the circumference of the outer side of the circular oscillating screen (4). The connecting plates (43) are arranged vertically and located at the upper end of the circular oscillating screen (4). A threaded rod (44) is provided on the side of the connecting plate (43) away from the circular oscillating screen (4). The threaded rod (44) passes through the connecting plate (43) and abuts against the circular oscillating screen (4) above. The threaded rod (44) is arranged perpendicular to the connecting plate (43) and is threadedly connected to the connecting plate (43).

8. The device for quickly changing a screen according to claim 7, characterized in that: A spring (45) is sleeved on the outside of the threaded rod (44). The spring (45) is located on the side of the connecting plate (43) away from the circular gyratory screen (4). The spring (45) is horizontally set and fixedly connected to the connecting plate (43).

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