CN211488540U

CN211488540U - Shaking screen machine

Info

Publication number: CN211488540U
Application number: CN201922498656.1U
Authority: CN
Inventors: 王宇奇; 沈如良
Original assignee: Hangzhou Shenhua Concrete Co ltd
Current assignee: Hangzhou Shenhua Concrete Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-15
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a shaker, which comprises a base, a vibrating table arranged on the base, a circular sieve seat arranged above the vibrating table and used for placing a sieve tray, a plurality of guard bars erected on the vibrating table, a pressing bar connected on the guard bars in a sliding way and used for vertically pressing the sieve tray, and a vibrating device arranged on the base, wherein a plurality of through grooves in the same direction as the radius direction of the sieve seat are arranged on the sieve seat; a horizontal rotating shaft is arranged in each through groove, the rotating shafts are perpendicular to the through grooves, and the distance from each rotating shaft to the center of the sieve base is the same; each rotating shaft is rotatably sleeved with a propping rod; the screen seat is provided with a driving mechanism which drives the plurality of tightening rods to be folded or unfolded simultaneously. This scheme can press from both sides tight location to the sieve tray in the horizontal direction, greatly reduced the sieve tray take place the probability that the level slided and drop, the sieve tray will fix a position on the sieve seat more firmly.

Description

Shaking screen machine

Technical Field

The utility model belongs to the technical field of the experimental technique of the screening that gathers materials and specifically relates to a shaker is related to.

Background

The sieve shaker is a screening mechanical device which is matched with a test sieve tray to replace manual screening and perform material granularity analysis, is usually in a long-strip barrel shape, is provided with a plurality of layers of test sieve trays in the middle, and is internally provided with a screen mesh, and the aperture of the screen mesh is gradually reduced from top to bottom. The working principle of the shaking screen machine is that the relative movement of the bulk material and the screen surface is utilized to make part of particles penetrate through the screen holes with different apertures, and the materials such as sand, gravel, broken stone and the like are divided into different grades according to the particle size.

Such as patent No. CN209271901U, which provides a shaker, which comprises a base, a vibration table elastically connected above the base, a sieve base in threaded connection above the vibration table and a sieve tray placed on the sieve base, the upper surface of the vibration table is fixedly connected with a protective bracket vertical to the horizontal plane, the top of the protective bracket is fixedly connected with a protective top which is parallel to the horizontal plane and is positioned above the sieve base, a pressing component is arranged above the base and the screen disc and comprises a plurality of screw rods which are vertical to the horizontal plane and the top ends of which are rotationally connected with the protective top and a pressing piece which is positioned above the screen disc and is parallel to the horizontal plane and is used for pressing the screen disc, the pressing piece comprises a plurality of pressing rods in threaded fit with the screw rod and a disc fixedly connected with one end of each pressing rod far away from the screw rod, and a transmission assembly for driving the screw rod to rotate is arranged in the base.

Although the pressing effect of the sieve tray is improved in the vertical direction, the sieve tray is only stacked on the sieve base, the sieve tray is not limited in the horizontal direction, the sieve tray can easily slide in the horizontal direction when the sieve shaker works, and the probability that the sieve tray falls off from the sieve base is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shaker can press from both sides tight location to the sieve tray on the horizontal direction, greatly reduced the sieve tray take place the probability that the level slided and dropped, the sieve tray will fix a position on the sieve seat more firmly.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a screen shaker comprises a base, a vibrating table arranged on the base, a circular screen seat positioned above the vibrating table and used for placing a screen disc, a plurality of protective rods erected on the vibrating table, pressing rods connected to the protective rods in a sliding mode and used for vertically pressing the screen disc, and a vibrating device arranged on the base, wherein a plurality of through grooves in the same radius direction as the screen seat are formed in the screen seat; a horizontal rotating shaft is arranged in each through groove, the rotating shafts are perpendicular to the through grooves, and the distance from each rotating shaft to the center of the sieve base is the same; each rotating shaft is rotatably sleeved with a propping rod; the screen seat is provided with a driving mechanism which drives the plurality of tightening rods to be folded or unfolded simultaneously.

Through adopting above-mentioned technical scheme, after compressing tightly the vertical screen tray that compresses tightly of pole, the operator makes many support tight poles through actuating mechanism and draws in towards the screen tray simultaneously, and many support tight poles finally can press from both sides the screen tray on the tight sieve seat, and then restrict the screen tray in the horizontal direction. When the sieve tray was taken off to needs, operator's reverse operation actuating mechanism made many to support tight pole and expand simultaneously, and many just can loosen the sieve tray on the sieve seat of supporting tight pole. Compare in prior art, this scheme can press from both sides tight location to the sieve tray in the horizontal direction, greatly reduced the sieve tray take place the probability that the level slided and drop, the sieve tray will be fixed a position on the sieve seat more firmly.

The utility model discloses further set up to: the driving mechanism comprises a threaded rod which is vertically arranged below the sieve base and is coaxial with the sieve base, a rotating sleeve which is sleeved on the threaded rod in a threaded manner, a rotating drum which is rotatably embedded at the upper end of the rotating sleeve and is coaxial with the rotating sleeve, and a connecting rod which is hinged on the outer side wall of the rotating drum and abuts against the end part of the rod.

Through adopting above-mentioned technical scheme, the operator is rotatory to rotate the cover, under the effect of screw thread, rotate cover and rotary drum alright relative threaded rod take place from top to bottom to remove, and the one end of connecting rod will reciprocate along with the rotary drum is synchronous, and the other end of connecting rod then can take place rotatoryly round the pivot, and then orders about many to support the pole and draw in or expand simultaneously, and actuating mechanism's structural principle is ingenious, has made things convenient for operator's operation greatly.

The utility model discloses further set up to: the side wall of the threaded rod is vertically provided with a limiting groove, the rotary drum is fixedly connected with a limiting block, and the limiting block slides and tightly adheres to the limiting groove.

Through adopting above-mentioned technical scheme, the setting of spacing groove and stopper has effectively avoided the rotary drum along with the rotatory condition of rotating the cover, and the rotary drum will drive the one end of connecting rod more smoothly and reciprocate.

The utility model discloses further set up to: and the outer side wall of the rotating sleeve is fixedly connected with a plurality of force application parts.

By adopting the technical scheme, the force application part provides a good force application part for the operator to rotate the rotating sleeve, so that the operator can rotate the rotating sleeve conveniently.

The utility model discloses further set up to: the abutting rod comprises an outer rod rotatably sleeved on the rotating shaft and an inner rod which is embedded in one end of the outer rod in a sliding manner and used for abutting against the sieve tray; the outer rod is provided with a locking mechanism for clamping and positioning the inner rod.

Through adopting above-mentioned technical scheme, after the diameter of sieve tray changes, the pole adjusts the whole length of supporting the tight pole in the operator slidable, supports the tight pole and will press from both sides tight sieve tray more smoothly, and the device can satisfy the tight demand of the clamp of more specifications sieve trays, has improved flexibility and the practicality that the device used. After the inner rod slides to a proper position, an operator can position the position of the inner rod through the locking mechanism.

The utility model discloses further set up to: the locking mechanism comprises a threaded hole which is formed in the outer rod and communicated with the inner side wall and the outer side wall of the outer rod, and a second bolt which is in threaded connection with the threaded hole and one end of which abuts against the side wall of the inner rod.

Through adopting above-mentioned technical scheme, after interior pole slides to suitable position, the operator screws up the second bolt on the screw hole, and the second bolt will order about interior pole and will firmly support tightly on the outer pole, and then locked interior pole position, and locking mechanical system's structural principle is simple, and it is very convenient in the operation. If the inner rod needs to be slid again, an operator can unscrew the second bolt, and the operation is very convenient.

The utility model discloses further set up to: the end part of the abutting rod is rotatably connected with an arc-shaped plate used for being attached to the outer side wall of the sieve tray.

Through adopting above-mentioned technical scheme, the arc can increase and support area of contact between tight pole and the sieve tray, further improves the stability after the sieve tray is locked.

The utility model discloses further set up to: a plurality of concentric circular grooves are formed in the upper surface of the sieve base, and the diameters of the circular grooves are different.

Through adopting above-mentioned technical scheme, after the screen tray embedding circular slot, the circular slot can be exerted spacingly to the screen tray in the horizontal direction, has further reduced the probability that the screen tray takes place horizontal slip and drops. And the setting of a plurality of circular slots can supply the sieve tray embedding of different diameter specifications, has improved flexibility and the practicality that the device used.

To sum up, the utility model discloses a beneficial technological effect does:

1. through grooves, rotating shafts, abutting rods and driving mechanisms are arranged, so that the screen tray can be clamped and positioned in the horizontal direction, the probability that the screen tray horizontally slides and falls is greatly reduced, and the screen tray is more firmly positioned on the screen seat;

2. the limiting groove and the limiting block are arranged, so that the rotary drum can drive one end of the connecting rod to move up and down more smoothly;

3. the arrangement of the outer rod, the inner rod and the locking mechanism enables the device to meet the clamping requirements of sieve trays with more specifications, and improves the flexibility and the practicability of the use of the device;

4. due to the arrangement of the arc-shaped plates, the contact area between the tightening rod and the screen tray can be increased, and the stability of the screen tray after being locked is further improved;

5. the arrangement of a plurality of concentric circles grooves can further reduce the probability that the sieve tray horizontally slides and falls.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial cross-sectional structure of the vibrating table and the sieve base of the present invention;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

In the figure, 1, a base; 2. a spring; 3. a vibration table; 4. a sieve tray; 5. a sieve base; 6. a guard bar; 7. a hold down bar; 8. a first bolt; 9. a vibrating device; 10. a circular groove; 11. a through groove; 12. a rotating shaft; 13. a tightening rod; 131. an outer rod; 132. an inner rod; 14. an arc-shaped plate; 15. a threaded rod; 16. a rotating drum; 17. rotating the sleeve; 18. a force application part; 19. a connecting rod; 20. a limiting groove; 21. a limiting block; 22. a threaded hole; 23. and a second bolt.

Detailed Description

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

Referring to fig. 1, a shaker, including base 1, vibrating table 3 through 2 elastic connection of spring on base 1, fixed connection is used for placing the circular sieve seat 5 of sieve dish 4 directly over vibrating table 3, erect three protection poles 6 on vibrating table 3, slide from top to bottom and be used for compressing tightly three trident type pressing rod 7 of sieve dish 4 between three protection poles 6, threaded connection is on pressing rod 7 and one end supports the first bolt 8 of tight protection pole 6, and set up the vibrating device 9 that is used for carrying out intermittent type nature to vibrating table 3 on base 1. After sieve dish 4 that contains to gather materials is stacked on sieve seat 5, the operator slides and compresses tightly pole 7 and make and compress tightly pole 7 and compress tightly on sieve dish 4, screws up first bolt 8 again afterwards and locks the position that compresses tightly pole 7, alright start vibrating device 9 at last and carry out intermittent type nature to shaking table 3 and strike, and the gathering materials on the sieve dish 4 just can realize the screening along with the intermittent type nature motion of shaking table 3.

It should be noted that the vibration device 9 is identical to the vibration component in publication No. CN209271901U, and the vibration component is described clearly in the comparison document with publication No. CN209271901U, and is also a mature mechanical device in the market, so that the details thereof are not repeated.

The upper surface of sieve seat 5 is seted up a plurality of diameters different circular slots 10, and the centre of a circle of a plurality of circular slots 10 all falls on the axis of sieve seat 5. The circular groove 10 can be used for embedding the sieve trays 4 with different diameters, so that the sieve trays 4 are limited in the horizontal direction, and the probability that the sieve trays 4 slide horizontally and fall is reduced.

Referring to fig. 1 and 2, a gap is left between the sieve base 5 and the vibration table 3. Three through grooves 11 which are communicated with the upper surface and the lower surface of the sieve seat 5 are formed in the sieve seat 5, and the three through grooves 11 are uniformly distributed on the sieve seat 5 at equal angles. Each through groove 11 is internally and rotatably connected with a horizontal rotating shaft 12, the rotating shafts 12 are vertically arranged with the corresponding through grooves 11, and the distances from the three rotating shafts 12 to the circle center of the sieve base 5 are the same. All rotate the cover 17 and be equipped with one and be used for pressing from both sides tight pole 13 of supporting of tight sieve dish 4 on every pivot 12, and support tight pole 13 and rotate on the one end that is close to sieve dish 4 and be connected with an arc 14 that is used for laminating sieve dish 4 lateral wall. The lower part of the sieve seat 5 is fixedly connected with a vertical threaded rod 15, and the central axis of the threaded rod 15 coincides with the central axis of the sieve seat 5. Coaxial cover is equipped with rotary drum 16 and rotates cover 17 on the threaded rod 15, and rotary drum 16 rotates to inlay and establishes in the upper end that rotates cover 17, rotates the inside wall and the threaded rod 15 screw-thread fit of cover 17, and the outside wall circumference that rotates cover 17 evenly is equipped with three application of force portion 18 that make things convenient for the operator to rotate. A connecting rod 19 is hinged between the rotary drum 16 and each abutting rod 13, and the rotating axis of the connecting rod 19 is parallel to the corresponding rotating shaft 12. The threaded rod 15, the rotating sleeve 17, the rotating drum 16 and the connecting rod 19 form a driving mechanism which drives the three abutting rods 13 to be folded or unfolded simultaneously. When the pressing rod 7 presses the sieve tray 4, the operator rotates the rotating sleeve 17, under the action of the threads, the rotating sleeve 17 and the rotating drum 16 synchronously move upwards, one end of the connecting rod 19 synchronously moves upwards along with the rotating drum 16, the other end of the connecting rod 19 rotates around the corresponding rotating shaft 12, the three arc-shaped plates 14 are folded towards the sieve tray 4 simultaneously and finally clamp the sieve tray 4, and the sieve tray 4 is limited in the horizontal direction. When three arc plates 14 need to be loosened from the screen plate 4, an operator rotates the rotating sleeve 17 to move the rotating drum 16 downwards.

Referring to fig. 3, a limit groove 20 is vertically formed in the side wall of the threaded rod 15, a limit block 21 is fixedly connected to the inner side wall of the rotary drum 16, and the limit block 21 slides up and down to be attached to the limit groove 20. The arrangement of the limiting groove 20 and the limiting block 21 effectively avoids the situation that the rotary drum 16 rotates along with the rotary sleeve 17, and the rotary drum 16 can drive one end of the connecting rod 19 to move up and down more smoothly.

Referring to fig. 2, the tightening rod 13 includes an outer rod 131 having a square ring-shaped cross section and disposed on the rotating shaft 12, and an inner rod 132 slidably attached to the inside of the outer rod 131, the arc plate 14 is rotatably connected to an end of the inner rod 132 away from the outer rod 131, and an end of the outer rod 131 away from the inner rod 132 is hinged to an end of the connecting rod 19. A threaded hole 22 is formed in one end side wall of the outer rod 131 close to the inner rod 132, the threaded hole 22 is communicated with the inner side wall and the outer side wall of the outer rod 131, a second bolt 23 is connected to the threaded hole 22 in a threaded mode, and one end of the second bolt 23 abuts against the side wall of the inner rod 132. The threaded hole 22 and the second bolt 23 constitute a locking mechanism for snap-in positioning of the inner rod 132. When the diameter of the screen tray 4 (see fig. 1) changes, the operator can slide the inner rod 132 to adjust the overall length of the abutting rod 13, so that the arc-shaped plate 14 can be smoothly attached to the outer side wall of the screen tray 4 (see fig. 1). After the inner rod 132 slides to a suitable position, the operator only needs to screw the second bolt 23 to drive the inner rod 132 to abut against the outer rod 131. To re-slide the inner rod 132, the operator unscrews the second bolt 23.

The implementation principle of the embodiment is as follows: when the pressing rod 7 presses the sieve tray 4, the operator rotates the rotating sleeve 17, under the action of the threads, the rotating sleeve 17 and the rotating drum 16 synchronously move upwards, one end of the connecting rod 19 synchronously moves upwards along with the rotating drum 16, the other end of the connecting rod 19 rotates around the corresponding rotating shaft 12, the three arc-shaped plates 14 are folded towards the sieve tray 4 simultaneously and finally clamp the sieve tray 4, and the sieve tray 4 is limited in the horizontal direction. When three arc plates 14 need to be loosened from the screen plate 4, an operator rotates the rotating sleeve 17 to move the rotating drum 16 downwards.

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 shaker, includes base (1), shaking table (3) of setting on base (1), be located shaking table (3) top and be used for placing circular sieve seat (5) of sieve dish (4), erect many guard bars (6) on shaking table (3), sliding connection is used for vertical compressing tightly pole (7) of sieve dish (4) on guard bar (6) to and set up vibrating device (9) on base (1), its characterized in that: a plurality of through grooves (11) which are the same as the sieve base (5) in the radius direction are formed in the sieve base (5); a horizontal rotating shaft (12) is arranged in each through groove (11), the rotating shaft (12) is perpendicular to the through grooves (11), and the distance from each rotating shaft (12) to the circle center of the sieve base (5) is the same; each rotating shaft (12) is rotatably sleeved with a propping rod (13); the screen seat (5) is provided with a driving mechanism which drives the plurality of tightening rods (13) to be folded or unfolded simultaneously.

2. A shaker as defined in claim 1, wherein: the driving mechanism comprises a threaded rod (15) which is vertically arranged below the sieve base (5) and is coaxial with the sieve base (5), a rotating sleeve (17) which is sleeved on the threaded rod (15) in a threaded manner, a rotating drum (16) which is rotatably embedded at the upper end of the rotating sleeve (17) and is coaxial with the rotating sleeve (17), and a connecting rod (19) which is hinged on the outer side wall of the rotating drum (16) and abuts against the end part of the rod (13).

3. A shaker as defined in claim 2, wherein: the side wall of the threaded rod (15) is vertically provided with a limiting groove (20), the rotary drum (16) is fixedly connected with a limiting block (21), and the limiting block (21) is tightly attached to the limiting groove (20) in a sliding manner.

4. A shaker as defined in claim 2, wherein: the outer side wall of the rotating sleeve (17) is fixedly connected with a plurality of force application parts (18).

5. A shaker as defined in claim 1, wherein: the abutting rod (13) comprises an outer rod (131) rotatably sleeved on the rotating shaft (12) and an inner rod (132) which is embedded on one end of the outer rod (131) in a sliding mode and used for abutting against the sieve tray (4); the outer rod (131) is provided with a locking mechanism for clamping and positioning the inner rod (132).

6. A shaker as defined in claim 5, wherein: the locking mechanism comprises a threaded hole (22) which is formed in the outer rod (131) and communicated with the inner side wall and the outer side wall of the outer rod (131), and a second bolt (23) which is in threaded connection with the threaded hole (22) and one end of which abuts against the side wall of the inner rod (132).

7. A shaker as defined in claim 1, wherein: the end part of the abutting rod (13) is rotatably connected with an arc-shaped plate (14) used for being attached to the outer side wall of the screen disc (4).

8. A shaker as defined in claim 1, wherein: the upper surface of the sieve base (5) is provided with a plurality of concentric circular grooves (10), and the diameters of the circular grooves (10) are different.