CN212120807U

CN212120807U - High square sieve

Info

Publication number: CN212120807U
Application number: CN202020660175.6U
Authority: CN
Inventors: 吕民全; 李创; 綦宝丽; 陈占良
Original assignee: Laizhou Hongyuan Flour Co Ltd
Current assignee: Laizhou Hongyuan Flour Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-12-11
Anticipated expiration: 2030-04-27

Abstract

The utility model relates to a square high sieve, which comprises a box body, wherein a transmission component is arranged in the box body; the transmission assembly comprises a vibration motor fixedly arranged in the box body and an eccentric shaft rotationally connected to the box body; a belt is rotatably connected between the vibration motor and the eccentric shaft; two ends of the eccentric shaft extend out of the box body and are connected with balancing weights; a connecting rod is arranged between the balancing weight and the eccentric shaft; one end of the connecting rod, which is close to the eccentric shaft, is provided with a clamp; the clamp comprises a first fixing piece and a second fixing piece which is arranged opposite to the first fixing piece; the first fixing piece is fixedly connected with the connecting rod; a plurality of clamping grooves are uniformly formed in the outer ring surface of the eccentric shaft; clamping blocks matched with the clamping grooves are fixedly arranged on the inner ring surfaces of the first fixing piece and the second fixing piece; the first fixing piece and the second fixing piece are detachably connected through a fastening bolt. The utility model discloses have the cooperation through draw-in groove and fixture block, prevent that the eccentric shaft from rotating in-process clamp and producing and slide, result in the effect that the balancing weight moved down.

Description

High square sieve

Technical Field

The utility model belongs to the technical field of the technique of food processing equipment and specifically relates to a high square sieve is related to.

Background

At present, conventional powder processing processes typically include multiple screening steps, each requiring different screening equipment. Existing powder screening equipment typically includes both vibrating screens and swing screens. The high square sieve is a relatively common swing sieve, and the sieve box is driven by the transmission mechanism to do reciprocating motion or circular motion, so that the wheat mixed with impurities is sieved through sieve paths with different sieve lattices.

The prior art can refer to a utility model patent with an authorization publication number of CN208554945U, which discloses a production line of a square plansifter and flour mixing, comprising a box body and a sifter box, wherein the sifter box is arranged inside the box body, the outside of the box body is provided with a plurality of pull rods, the upper ends of the pull rods are fixed on a suspension beam, a mounting seat is arranged between the lower ends of the pull rods and the box body, the pull rods are fixed on the mounting seat, a vertical eccentric shaft is arranged in the box body, two ends of the eccentric shaft extend out of the box body, the end part of the eccentric shaft is provided with an eccentric block, a vibrating motor is fixed on the box body; the structure has the effects of improving the space volume and the working efficiency of the screen box and improving the production efficiency of flour.

The above prior art solutions have the following drawbacks: the eccentric block is fixed on the eccentric shaft through the cooperation of the hoop and the bolt, and in the process that the eccentric shaft drives the eccentric block to rotate, the eccentric block which is generated by shaking is very easy to move downwards, so that the eccentric shaft sinks, and finally, a transmission fault is generated.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a high square sieve, through the cooperation of draw-in groove and fixture block, prevents that the eccentric shaft from rotating in-process clamp and producing and slide, leads to the balancing weight to move down.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a square high sieve comprises a box body, wherein a transmission assembly is arranged in the box body; the transmission assembly comprises a vibration motor fixedly arranged in the box body and an eccentric shaft rotationally connected to the box body; a belt is rotatably connected between the vibration motor and the eccentric shaft; two ends of the eccentric shaft extend out of the box body and are connected with balancing weights; a connecting rod is arranged between the balancing weight and the eccentric shaft; one end of the connecting rod, which is close to the eccentric shaft, is provided with a clamp; the hoop comprises a first fixing piece and a second fixing piece which is arranged opposite to the first fixing piece; the first fixing piece is fixedly connected with the connecting rod; a plurality of clamping grooves are uniformly formed in the outer ring surface of the eccentric shaft; clamping blocks matched with the clamping grooves are fixedly arranged on the inner ring surfaces of the first fixing piece and the second fixing piece; the first fixing piece and the second fixing piece are detachably connected through a fastening bolt.

By adopting the technical scheme, when in use, the clamping blocks on the first fixing piece and the second fixing piece are clamped in the proper clamping grooves; then, screwing in a fastening bolt to fix the first fixing piece and the second fixing piece on the outer ring surface of the eccentric shaft; and finally, starting the vibration motor, and driving the eccentric shaft to rotate through the belt to enable the eccentric shaft to generate centrifugal force. In the rotating process of the eccentric shaft, the balancing weights at the two ends of the eccentric shaft can synchronously rotate to provide centrifugal force, so that the box body moves. When the position of balancing weight needs to be adjusted, loosen fastening bolt, can in the draw-in groove of different positions with the fixture block joint.

The present invention may be further configured in a preferred embodiment as: the end part of the fastening bolt is in threaded connection with a nut; an anti-loosening washer is sleeved between the fastening bolt and the nut; the anti-loosening gasket is fixedly provided with a vortex-shaped anti-loosening bulge; and a locking groove matched with the anti-loosening bulge is formed in the lower end face of the nut.

By adopting the technical scheme, before the first fixing piece and the second fixing piece are connected, the anti-loosening gasket is sleeved on the fastening bolt, and then the nut is screwed in; after the nut is screwed, the anti-loosening bulge on the anti-loosening washer can be clamped in the locking groove of the lower end face of the nut, so that the eccentric shaft is prevented from reversely screwing out of the nut in the rotating process, and the fastening bolt is prevented from loosening.

The present invention may be further configured in a preferred embodiment as: the anti-loosening washer is provided with an anti-loosening bolt; the anti-loosening bolt penetrates through the anti-loosening gasket and the end part of the anti-loosening bolt is in threaded connection with the inside of the second fixing piece.

By adopting the technical scheme, after the anti-loosening gasket is sleeved on the fastening bolt, the anti-loosening bolt is inserted to fix the anti-loosening gasket on the second fixing piece, so that the anti-loosening gasket and the nut are prevented from being screwed out reversely in the movement process.

The present invention may be further configured in a preferred embodiment as: a U-shaped support plate is arranged between the connecting rod and the balancing weight; the end part of the connecting rod extends to the height direction of the U-shaped support plate to form a fixing part; the fixing part is fixedly connected with a side plate of the U-shaped support plate; the balancing weight is arranged at the upper end of the U-shaped support plate.

Through adopting above-mentioned technical scheme, put the balancing weight on U type extension board, come the bearing balancing weight through U type extension board and rather than fixed connection's connecting rod, realize avoiding the balancing weight to move down to the firm bearing of balancing weight.

The present invention may be further configured in a preferred embodiment as: the upper ends of the two side plates of the U-shaped support plate are turned outwards to form a fixed lip edge; the fixed lip edge is vertical to two side plates of the U-shaped support plate; and a support plate is fixedly arranged on the upper surface of the fixed lip edge.

By adopting the technical scheme, the arrangement of the fixing lip edge is convenient for fixing the support plate on the U-shaped support plate; the backup pad can increase and the area of contact between the balancing weight, is convenient for fix the balancing weight on U type extension board firmly.

The present invention may be further configured in a preferred embodiment as: the U-shaped support plate is provided with an expansion bolt; a fixing groove is formed in the balancing weight; an expansion pipe is fixedly arranged in the fixing groove; the expansion bolt sequentially penetrates through the U-shaped support plate and the support plate, and the end part of the expansion bolt is in threaded connection with the expansion pipe.

Through adopting above-mentioned technical scheme, insert expansion bolts and establish on U type extension board and with its lower extreme and expansion pipe threaded connection, can improve the joint strength between balancing weight and the backup pad, prevent that the balancing weight from droing from the backup pad.

The present invention may be further configured in a preferred embodiment as: a suspension beam is arranged above the box body; a plurality of groups of elastic steel wire ropes are arranged on the outer side of the box body; the upper ends of the groups of elastic steel wire ropes are fixedly connected with the suspension beam; the lower ends of the elastic steel wire ropes are fixedly connected with the box body.

Through adopting above-mentioned technical scheme, the eccentric shaft rotates the in-process that drives the box and remove, can stimulate elasticity wire rope and make it take place deformation, and elasticity wire rope drives the box and returns rapidly because elasticity resumes the effect that can give a pulling force of box, can prevent that the box from moving about.

The present invention may be further configured in a preferred embodiment as: protective covers are fixedly arranged on the upper end face and the lower end face of the box body; the balancing weight is arranged inside the protective cover.

Through adopting above-mentioned technical scheme, the eccentric shaft drives the balancing weight at the protection casing internal rotation, can prevent that the box working process, the balancing weight is touched in the staff mistake, causes the staff injured.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the fixing piece is used, the clamping blocks on the first fixing piece and the second fixing piece are clamped in the proper clamping grooves; then, screwing in a fastening bolt to fix the first fixing piece and the second fixing piece on the outer ring surface of the eccentric shaft; and finally, starting the vibration motor, and driving the eccentric shaft to rotate through the belt to enable the eccentric shaft to generate centrifugal force. In the rotating process of the eccentric shaft, the balancing weights at the two ends of the eccentric shaft can synchronously rotate to provide centrifugal force, so that the box body moves. When the position of the balancing weight needs to be adjusted, the fastening bolt is loosened, and the clamping block is clamped in the clamping grooves at different positions;

2. before the first fixing piece and the second fixing piece are connected, the anti-loosening gasket is sleeved on the fastening bolt, and then the nut is screwed in; after the nut is screwed, the anti-loosening bulge on the anti-loosening washer can be clamped in the locking groove on the lower end face of the nut, so that the nut is prevented from being reversely screwed out in the rotation process of the eccentric shaft, and the fastening bolt is prevented from loosening;

3. put the balancing weight on U type extension board, come the bearing balancing weight through U type extension board and rather than fixed connection's connecting rod, realize the firm bearing to the balancing weight, avoid the balancing weight to move down.

Drawings

FIG. 1 is a schematic view of the overall structure of a square screen in the embodiment;

FIG. 2 is a schematic structural view of a salient transmission assembly in the embodiment;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of the anti-loose washer shown in the embodiment.

Reference numerals: 1. a suspension beam; 2. a box body; 4. a discharge port; 5. an elastic wire rope; 6. a transmission assembly; 61. a vibration motor; 62. an eccentric shaft; 621. a card slot; 7. a belt; 8. a balancing weight; 81. an expansion tube; 9. a protective cover; 10. a U-shaped support plate; 11. a retaining lip; 12. a support plate; 121. an expansion bolt; 13. a connecting rod; 131. a fixed part; 14. clamping a hoop; 141. a first fixing sheet; 142. a second fixing sheet; 1421. a clamping block; 15. fastening a bolt; 16. a nut; 161. a locking groove; 17. an anti-loosening gasket; 171. the anti-loosening bulge is arranged on the outer wall of the shell; 172. locking bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a square plansifter, including hanging beam 1 and setting up in box 2 of hanging beam 1 lower extreme, feed inlet and lower extreme have been seted up to the upper end of box 2 and discharge gate 4 has been seted up to feed inlet and discharge gate 4 all through hose way and box 2 fixed connection. The box 2 is hung on the suspension beam 1 through a plurality of groups of elastic steel wire ropes 5, the upper end of each elastic steel wire rope 5 is fixedly connected with the suspension beam 1, and the lower end of each elastic steel wire rope 5 is fixedly connected with the box 2. The box body 2 is internally provided with a plurality of screen boxes and a transmission assembly 6 for driving the box body 2 to move.

Wheat to be screened enters the box body 2 from the feeding hole and finally falls into the screening box, and the transmission assembly 6 is started to drive the box body 2 to move; the box body 2 is pulled by the elastic restoring force of the elastic steel wire rope 5 when moving, so that the box body 2 is rapidly returned, and the wheat is screened.

Referring to fig. 1 and 2, the driving assembly 6 includes a vibration motor 61 fixedly installed inside the casing 2 and an eccentric shaft 62 rotatably connected to the casing 2, the eccentric shaft 62 is disposed perpendicular to the upper end surface and the lower end surface of the casing 2, and both ends of the eccentric shaft 62 extend out of the upper end surface and the lower end surface of the casing 2. A belt 7 is rotatably connected between the eccentric shaft 62 and the vibration motor 61, the vibration motor 61 is started, the eccentric shaft 62 can be driven to rotate through the belt 7, the eccentric shaft 62 generates centrifugal force, and the box body 2 is driven to move.

The upper and lower ends of the eccentric shaft 62 are both provided with clump weights 8, and the clump weights 8 at the upper and lower ends rotate synchronously along with the eccentric shaft 62. In order to prevent the balancing weight 8 from touching the worker by mistake during rotation, the upper end surface and the lower end surface of the box body 2 are respectively and fixedly provided with a protective cover 9, and the balancing weight 8 is arranged inside the protective cover 9.

Referring to fig. 2 and 3, a U-shaped support plate 10 for supporting the counterweight 8 is disposed at the lower end of the counterweight 8, the upper ends of two side plates of the U-shaped support plate 10 are turned outwards to form a fixed lip 11, the fixed lip 11 is disposed perpendicular to the two side plates of the U-shaped support plate 10, and a support plate 12 is horizontally disposed on the upper surface of the fixed lip 11, and the counterweight 8 is disposed above the support plate 12. In order to facilitate the fixing operation of the counterweight block 8, an expansion bolt 121 is inserted into the U-shaped support plate 10, a fixing groove is formed in a position of the counterweight block 8 corresponding to the expansion bolt 121, an expansion pipe 81 is fixedly arranged in the fixing groove, and an end portion of the expansion bolt 121 is in threaded connection with the expansion pipe 81.

One side of U type extension board 10 sets firmly a connecting rod 13 perpendicularly to connecting rod 13 and the position department that U type extension board 10 contacted extend to the both sides of U type extension board 10 and form fixed part 131, through the setting of fixed part 131, have increased the area of contact of connecting rod 13 with U type extension board 10, are convenient for realize the firm bearing to balancing weight 8.

Referring to fig. 2 and 3, a clamp 14 is arranged at one end of the connecting rod 13 far away from the U-shaped support plate 10, and the clamp 14 comprises a first fixing piece 141 fixedly connected with the connecting rod 13 and a second fixing piece 142 arranged opposite to the first fixing piece 141; a fastening bolt 15 for closing the clamp 14 is provided on the clamp, and a nut 16 (see fig. 4) is screwed to an end of the fastening bolt 15; the fastening bolt 15 passes through the first fixing piece 141 and the second fixing piece 142 in sequence, and then the nut 16 is tightened, so that the first fixing piece 141 and the second fixing piece 142 can be surrounded on the outer annular surface of the eccentric shaft 62, and the balance weight 8 and the eccentric shaft 62 can be fixed.

In order to prevent the eccentric shaft 62 from moving downwards during rotation, the eccentric shaft 62 has an outer circumferential surface uniformly provided with a plurality of slots 621, and the inner circumferential surfaces of the first fixing piece 141 and the second fixing piece 142 are fixedly provided with a fixture block 1421 adapted to the slots 621. The clamping block 1421 is clamped in the clamping groove 621, so that the counterweight block 8 can be prevented from sliding on the eccentric shaft 62.

Referring to fig. 3 and 4, in order to prevent the fastening bolt 15 from loosening during the movement of the counterweight 8 and the eccentric shaft 62, a loosening-preventing washer 17 is further sleeved between the fastening bolt 15 and the nut 16. A spiral loosening prevention protrusion 171 is fixedly provided on the surface of one end of the loosening prevention washer 17 adjacent to the nut 16, and the spiral direction of the loosening prevention protrusion 171 is the same as the screwing direction of the nut 16 on the fastening screw. In order to realize the engagement with the anti-loosening washer 17, a locking groove 161 adapted to the anti-loosening protrusion 171 is formed on the end surface of the nut 16. After the nut 16 is screwed, the anti-loosening protrusion 171 is clamped in the locking groove 161, so that the nut 16 can be prevented from being reversely screwed out in the rotating process.

Referring to fig. 4, the diameter of the anti-loosening washer 17 is larger than that of the nut 16, and in order to prevent the nut 16 from driving the anti-loosening washer 17 to rotate reversely, an anti-loosening bolt 172 is arranged at the edge of the anti-loosening washer 17, and the anti-loosening bolt 172 penetrates through the anti-loosening washer 17 and has an end portion screwed inside the second fixing piece 142. The anti-loosening washer 17 is fixed to the second fixing piece 142 by the anti-loosening bolt 172, and the effect of preventing loosening of the nut 16 is further improved.

The implementation principle of the embodiment is as follows: when in use, firstly, the expansion bolt 121 penetrates through the support plate 12 and the end part of the expansion bolt is screwed in the fixing groove 81 on the counterweight block 8, so that the counterweight block 8 and the support plate 12 are fixed. Then, the first fixing piece 141 and the second fixing piece 142 are wound around the outer annular surface of the eccentric shaft 62, the fastening bolt 15 is sequentially passed through the first fixing piece 141 and the second fixing piece 142, and the anti-loosening washer 17 is fitted over the fastening bolt 15. And thirdly, the anti-loosening bolt 172 is connected in the second fixing piece 142 in a threaded manner, the anti-loosening washer 17 is fixed on the second fixing piece 142, and then the nut 16 is screwed down to realize the fixation of the balancing weight 8 and the eccentric shaft 62 through the matching of the locking groove 161 and the anti-loosening protrusion 171. Finally, pouring the wheat into the box body 2 from the feeding hole, starting the vibration motor 61, driving the eccentric shaft 62 to rotate through the belt 7, synchronously rotating the clump weights 8 at the upper end and the lower end of the eccentric shaft 62 to generate centrifugal force, and finally moving the box body 2 to realize the screening of the wheat in the box body 2; the screened wheat is discharged from a discharge port 4.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high square sieve, includes box (2), its characterized in that: a transmission assembly (6) is arranged in the box body (2); the transmission assembly (6) comprises a vibration motor (61) fixedly arranged in the box body (2) and an eccentric shaft (62) rotationally connected to the box body (2); a belt (7) is rotatably connected between the vibration motor (61) and the eccentric shaft (62); two ends of the eccentric shaft (62) extend out of the box body (2) and are connected with a balancing weight (8); a connecting rod (13) is arranged between the balancing weight (8) and the eccentric shaft (62); a clamp (14) is arranged at one end of the connecting rod (13) close to the eccentric shaft (62); the clamp (14) comprises a first fixing piece (141) and a second fixing piece (142) opposite to the first fixing piece (141); the first fixing piece (141) is fixedly connected with the connecting rod (13); a plurality of clamping grooves (621) are uniformly formed in the outer annular surface of the eccentric shaft (62); a clamping block (1421) matched with the clamping groove (621) is fixedly arranged on the inner ring surfaces of the first fixing piece (141) and the second fixing piece (142); the first fixing piece (141) and the second fixing piece (142) are detachably connected through a fastening bolt (15).

2. A tall square screen as claimed in claim 1, wherein: a nut (16) is connected to the end part of the fastening bolt (15) in a threaded manner; an anti-loosening gasket (17) is sleeved between the fastening bolt (15) and the nut (16); a vortex-shaped anti-loosening protrusion (171) is fixedly arranged on the anti-loosening gasket (17); and a locking groove (161) matched with the anti-loosening protrusion (171) is formed in the lower end face of the nut (16).

3. A tall square screen as claimed in claim 2, wherein: the anti-loosening washer (17) is provided with an anti-loosening bolt (1721); the anti-loosening bolt (1721) penetrates through the anti-loosening gasket (17) and the end part of the anti-loosening bolt is in threaded connection with the inside of the second fixing piece (142).

4. A tall square screen as claimed in claim 1, wherein: a U-shaped support plate (10) is arranged between the connecting rod (13) and the balancing weight (8); the end part of the connecting rod (13) extends along the height direction of the U-shaped support plate (10) to form a fixing part (131); the fixing part (131) is fixedly connected with a side plate of the U-shaped support plate (10); the balancing weight (8) is arranged at the upper end of the U-shaped support plate (10).

5. A tall square screen according to claim 4, wherein: the upper ends of two side plates of the U-shaped support plate (10) are turned outwards to form a fixed lip edge (11); the fixed lip edge (11) is vertical to two side plates of the U-shaped support plate (10); and a support plate (12) is fixedly arranged on the upper surface of the fixed lip edge (11).

6. A tall square screen according to claim 5, wherein: expansion bolts (121) are arranged on the U-shaped support plate (10); a fixing groove is formed in the balancing weight (8); an expansion pipe (81) is fixedly arranged in the fixing groove; the expansion bolt (121) penetrates through the U-shaped support plate (10) and the support plate (12) in sequence, and the end part of the expansion bolt is in threaded connection with the expansion pipe (81).

7. A tall square screen as claimed in claim 1, wherein: a suspension beam (1) is arranged above the box body (2); a plurality of groups of elastic steel wire ropes (5) are arranged on the outer side of the box body (2); the upper ends of the groups of elastic steel wire ropes (5) are fixedly connected with the suspension beam (1); the lower ends of the elastic steel wire ropes (5) are fixedly connected with the box body (2).

8. A tall square screen as claimed in claim 1, wherein: the upper end surface and the lower end surface of the box body (2) are fixedly provided with protective covers (9); the balancing weight (8) is arranged inside the protective cover (9).