CN213801932U

CN213801932U - Grain elevator with telescoping device

Info

Publication number: CN213801932U
Application number: CN202022668574.XU
Authority: CN
Inventors: 沈一青; 除丽; 王志清
Original assignee: Wujiang Foodstuff Machinery Co Ltd
Current assignee: Wujiang Foodstuff Machinery Co Ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-27
Anticipated expiration: 2030-11-18

Abstract

The application relates to the field of agricultural bulk conveying equipment, in particular to a grain elevator with a telescopic device, which comprises the telescopic device and a driving device for driving the telescopic device to stretch. The telescopic device comprises a telescopic suction pipe and a sleeve sleeved on the telescopic suction pipe, and the telescopic suction pipe can ascend or descend in the vertical direction under the driving action of the driving device. This application has the effect that pneumatic grain elevator can continuous operation.

Description

Grain elevator with telescoping device

Technical Field

The application relates to the field of agricultural bulk conveying equipment, in particular to a grain elevator with a telescopic device.

Background

The grain elevator is a novel agricultural machine, provides suction force for a material suction pipeline through a vacuum pump, and the material suction pipeline can suck grains into the pipeline. The pneumatic grain elevator can be applied to grain loading and unloading, replenishment and the like of farms, docks, large grain depots and the like.

In the related art, when the material suction pipeline of the grain elevator sucks grains, along with the reduction of the height of a grain pile, a gap is formed between the bottom of the material suction pipeline and the grains, the grains which can be sucked up by the vacuum pump are reduced, even the grains can not be sucked, namely the operation is interrupted. At the moment, the machine is needed to be suspended, and after the distance between the material suction pipeline and the grain pile is adjusted, grain suction is carried out again.

In view of the above-mentioned related art, the inventors considered that there was a drawback that the pneumatic grain elevator is inconvenient for continuous operation.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the continuous operation of the grain elevator, the application provides a grain elevator with a telescopic device.

The application provides a grain elevator with telescoping device adopts following technical scheme:

a grain elevator with a telescopic device comprises the telescopic device and a driving device for driving the telescopic device to extend and retract up and down;

the telescopic device comprises a telescopic suction pipe and a sleeve, the telescopic suction pipe is arranged in the vertical direction, the sleeve is sleeved on the telescopic suction pipe, a grain inlet is formed in the bottom end of the telescopic suction pipe, and a grain outlet is formed in the top end of the sleeve.

By adopting the technical scheme, when grain needs to be sucked, the vacuum pump of the grain elevator provides grain sucking power for the telescopic device, and the grain is sucked from the grain inlet. Along with the increase of time, the grain heap height reduces constantly, and the easy space that appears between the telescopic suction pipe destroys the vacuum state in the telescopic suction pipe inner chamber, influences the suction strength to grain. The distance between the bottom of the telescopic suction pipe and the top end of the grain pile is monitored by field workers, when a gap is to be formed between the bottom of the telescopic suction pipe and the top end of the grain pile, the telescopic suction pipe can be adjusted downwards through the driving device and is deeper into the grain pile, so that the grain elevator can operate uninterruptedly, and the time wasted by stopping and adjusting is saved. The grains sucked into the telescopic suction pipe are conveyed upwards into the sleeve and then discharged from a discharge hole at the top end of the sleeve.

Optionally, the driving device comprises a half arranged at the bottom of the telescopic straw and detachably connected with the telescopic bottom pipe, a telescopic pulley embedded and connected with the half, and a fixed pulley arranged on the sleeve;

the driving device further comprises a steel wire rope, and one end of the steel wire rope is fixedly connected with the telescopic pulley, bypasses the fixed pulley and extends out.

Through adopting above-mentioned technical scheme, when needing to adjust flexible straw height, can take up or relax wire rope, carry through fixed pulley and pull the position that reduces flexible pulley to flexible pulley drives flexible straw and rises or descends. Because the fixed pulley changes the direction of the force application, the worker can stand on the ground to operate, does not need to walk on high platforms with different heights during adjustment at each time, and pulls the telescopic pulley and the telescopic straw from the upper part, so that the labor-saving effect is achieved.

Optionally, the half comprises a first buckling part and a second buckling part which are used for buckling the outer wall of the telescopic straw, and a first fixing part, a second fixing part, a third fixing part and a fourth fixing part which are used for fixing the half on the telescopic straw, wherein the first fixing part and the third fixing part are connected through bolts, the second fixing part and the fourth fixing part are connected through bolts, a first groove is formed in the side wall of the first fixing part, and a second groove is formed in the side wall of the third fixing part;

the telescopic pulley is provided with a connecting rod which is used for being connected with the first fixing part and the third fixing part, and the connecting rod is provided with a first lug which is embedded with the first groove and a second lug which is embedded with the second groove.

Through adopting above-mentioned technical scheme, fixed pulley passes through the connecting rod gomphosis on the first fixed part and the third fixed part of ha fu, if fixed pulley damages, can take off the bolt that is used for fixed ha fu, changes new fixed pulley and continues to use, does not influence the whole use of pneumatic grain elevator.

Optionally, a first transverse plate is fixedly connected to the first fixing portion, a second transverse plate is fixedly connected to the first buckling portion, a first through hole is formed in the first transverse plate, and a second through hole is formed in the second transverse plate;

the first diaphragm with wear to be equipped with the pivot between the second diaphragm, the cover be equipped with in the pivot be used for with wire rope fixed connection's capstan winch, the one end that the first diaphragm was stretched out in the pivot is connected with and is used for rotating the hand wheel of pivot.

Through adopting above-mentioned technical scheme, when needs made flexible straw flexible, the manual work rotates the hand wheel and makes the capstan winch tighten up or loosen wire rope, drives flexible pulley through fixed pulley and upwards or move down, is convenient for reach the flexible effect of messenger's flexible straw.

Optionally, a ratchet wheel is sleeved on the rotating shaft, and the ratchet wheel is located between the hand wheel and the first transverse plate;

the drive device further includes a pawl for engaging the ratchet wheel and a pin for rotationally coupling the first cross plate with the pawl.

By adopting the technical scheme, when the telescopic straw extends downwards, the ratchet wheel is rotated to increase the length of the steel wire rope, and the ratchet wheel and the pawl rotate in a single direction, so that the telescopic straw can be kept in a downward extending state all the time, and cannot move in the reverse direction, and the effect of stable operation of the telescopic straw is convenient to achieve.

Optionally, one end of the rotating shaft extending out of the second through hole is provided with a clamping ring.

Through adopting above-mentioned technical scheme, the pivot appears sliding condition in the slotted hole easily in the rotation process, and the tight circle then helps keeping the steady operation of pivot.

Optionally, a sealing ring is arranged on the outer wall of the telescopic straw, and the sealing ring is used for sealing a gap between the inner wall of the sleeve and the outer wall of the telescopic straw.

Through adopting above-mentioned technical scheme, flexible straw reciprocates the in-process, easily appears the gap with between the telescopic inner wall, influences the vacuum seal in sleeve and the flexible straw inner chamber, weakens the dynamics of suction. After the sealing ring is additionally arranged, the sealing performance between the inner wall of the sleeve and the outer wall of the telescopic straw is improved.

Optionally, a reinforcing ring for improving rigidity and strength of the sleeve is sleeved at the top of the sleeve, and a flange plate is fixedly connected to the reinforcing ring.

Through adopting above-mentioned technical scheme, the reinforcing ring helps strengthening telescopic pipeline rigidity and intensity, and the sleeve passes through the ring flange and is connected with other pipelines of pneumatic grain elevator, the telescopic dismantlement of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the telescopic device, the distance between the telescopic suction pipe and the grain pile can be adjusted through the driving device under the condition that the machine is not suspended, so that the effect of continuous operation of the grain elevator is achieved conveniently;

2. through the arrangement of driving, one end of the steel wire rope winds around the fixed pulley and goes downwards, so that a worker can lift and retract the suction pipe on the ground, and the burden of climbing a high platform is relieved;

3. through setting up ratchet and pawl, make the pivot only can unidirectional rotation in the course of the work, drive the flexible straw downwards promptly, help reducing the flexible straw and rise, keep away from the grain heap and weaken the possibility of suction.

Drawings

Fig. 1 is a schematic structural view of a pneumatic grain elevator with a telescopic device shown in the application.

Fig. 2 is a partial exploded view of a pneumatic grain elevator with a telescoping device as shown in the present application.

Fig. 3 is a schematic view of the structure of the haugh and telescopic pulley of a pneumatic grain elevator with a telescopic device shown in the application.

Fig. 4 is a sectional view for embodying the driving apparatus.

Fig. 5 is a cross-sectional view of the drive of a pneumatic grain elevator with a retractor shown in the present application.

Description of reference numerals: 1. a telescoping device; 11. a sleeve; 111. a grain outlet; 112. a flange plate; 12. a telescopic straw; 121. a grain inlet; 122. a seal ring; 2. a drive device; 21. a wire rope; 22. fixing the pulley; 23. a telescopic pulley; 231. a first bump; 232. a second bump; 233. a connecting rod; 24. half; 241. a first buckling part; 2411. a first fixed part; 2412. a second fixed part; 2413. a first groove; 242. a second fastening part; 2421. a third fixed part; 2422. a fourth fixing part; 2423. a second groove; 25. a first transverse plate; 251. a first through hole; 26. a second transverse plate; 261. a second through hole; 27. a winch; 271. a long through hole; 28. a rotating shaft; 281. a first bearing; 282. a second bearing; 283. tightening a ring; 29. a ratchet wheel; 210. a handwheel.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses grain elevator with telescoping device. Referring to fig. 1, the telescopic device 1 and a driving device 2 for driving the telescopic device 1 to extend and retract vertically are provided. The telescopic device 1 comprises a telescopic suction pipe 12 and a sleeve 11 sleeved on the telescopic suction pipe 12, the telescopic suction pipe 12 can slide in the sleeve 11 under the driving action of the driving device 2, so that the length of the telescopic device 1 is changed, the telescopic suction pipe 12 is kept in a state of extending into a grain stack, the telescopic suction pipe 12 is adjusted under the condition of not suspending the grain elevator, and the effect of continuous operation is convenient to achieve.

Referring to fig. 1 and 2, the telescopic straw 12 is sleeved with the sleeve 11, the bottom of the telescopic straw 12 is provided with a grain inlet 121, the outer wall of the top of the telescopic straw 12 is sleeved with a sealing ring 122 attached to the inner wall of the sleeve 11, and the top of the sleeve 11 is provided with a grain outlet 111. In the process of sliding the telescopic straw 12 in the sleeve 11, a gap is easily formed between the inner wall of the telescopic straw and the outer wall of the sleeve 11, and the sealing ring 122 is helpful to improve the tightness between the telescopic straw 12 and the sleeve 11.

Referring to fig. 1 and 2, the lower portion of the telescopic suction pipe 12 is extended into the grain heap, and grains are sucked into the telescopic suction pipe 12 from the grain inlet 121 by the suction force of the telescopic suction pipe 12. After the grains are sucked for a period of time, the height of the grain pile is reduced, and the bottom of the telescopic suction pipe 12 is separated from the grain pile, so that the vacuum suction effect is influenced. The telescopic tube 12 is driven by the driving device 2 to move downwards, and the sucked grain enters the sleeve 11 and is discharged through the grain outlet 111.

Referring to fig. 1, the sleeve 11 is sleeved with a reinforcing ring, and a flange 112 is welded on the reinforcing ring. The reinforcing ring is advantageous for improving the rigidity and strength of the sleeve 11 and for fixing the shape of the sleeve 11. The flange 112 enables the sleeve 11 to be detachably connected with other pipelines, and when the sleeve 11 or the telescopic suction pipe 12 breaks down, the flange 112 can be unfastened, so that the effect of conveniently overhauling the telescopic device 1 is achieved.

Referring to fig. 2 and 3, a half 24 for mounting the driving device 2 is sleeved on the bottom of the telescopic straw 12, and a telescopic pulley 23 is connected to the half 24 in a fitting manner. The half 24 includes a first engaging portion 241 and a second engaging portion 242 for engaging with the outer wall of the telescopic straw 12, and a first fixing portion 2411, a second fixing portion 2412, a third fixing portion 2421 and a fourth fixing portion 2422 for fixedly connecting the first engaging portion 241 and the second engaging portion 242. The first fixing part 2411 and the third fixing part 2421 are connected by a bolt, and the second fixing part 2412 and the fourth fixing part 2422 are connected by a bolt. The first fixing portion 2411 has a first groove 2413 on its sidewall, and the third fixing portion 2421 has a second groove 2423 on its sidewall.

Referring to fig. 3 and 4, the telescopic pulley 23 is provided with a connection bar 233 for connection with the first fixing part 2411 and the third fixing part 2421. One end of the connecting rod 233 close to the half 24 is provided with a first bump 231 engaged with the first groove 2413 and a second bump 232 engaged with the second groove 2423. When the telescopic pulley 23 and the half 24 need to be fixed together, the first projection 231 of the telescopic pulley 23 is embedded into the first groove 2413, the second projection 232 is embedded into the second groove 2423, and then the first fixing part 2411 and the third fixing part 2421 are screwed through the bolt, so that the telescopic pulley 23 is fixed on the half 24. The second fixing part 2412 and the fourth fixing part 2422 are also connected by bolts, and the half 24 is fixed on the telescopic straw 12. If the telescopic pulley 23 is damaged, the telescopic pulley can be detached from the half 24 and replaced by a new pulley, so that the influence on the use of the grain suction machine is reduced.

Referring to fig. 1 and 4, the driving device 2 further includes a fixed pulley 22 located above the telescopic pulley 23 and fixedly connected to the outer wall of the sleeve 11, and a wire rope 21 fixedly connected to the telescopic pulley 23, wherein one end of the wire rope 21 passes around the fixed pulley 22 and extends outward.

Referring to fig. 4 and 5, the other end of the wire rope 21 extends downward after being wound off the fixed sheave 22. The wire rope 21 is fixedly connected with a winch 27. The winch 27 is provided with a long through hole 271 therein, and a rotating shaft 28 is inserted into the long through hole 271. A first transverse plate 25 and a second transverse plate 26 are disposed on two sides of the winch 27, the first transverse plate 25 is fixedly connected with the first fixing portion 2411, and the second transverse plate 26 is fixedly connected with the first buckling portion 241. The first transverse plate 25 is provided with a first through hole 251 through which the rotating shaft 28 passes, and the second transverse plate 26 is provided with a second through hole 261 through which the rotating shaft 28 passes. One end of the rotating shaft 28 extending out of the first transverse plate 25 is fixedly connected with a hand wheel 210 for rotating the rotating shaft 28.

Referring to fig. 4 and 5, when the height of the telescopic straw 12 needs to be lowered, the rotating shaft 28 is rotated manually to drive the wire rope 21 on the winch 27, so as to extend the length of the wire rope 21, and the fixed pulley 22 drives the telescopic pulley 23 to move downwards, thereby facilitating more flexible adjustment of the lifting of the telescopic straw 12.

Referring to fig. 4 and 5, the ratchet wheel 29 is sleeved on the rotating shaft 28, and the ratchet wheel 29 is located between the hand wheel 210 and the first cross plate 25. The drive means 2 further comprises a pawl for engagement with the ratchet wheel 29 and a pin for rotational connection of the pawl to the first cross plate 25. When the height of the telescopic suction pipe 12 needs to be lowered, the hand wheel 210 is manually rotated, the rotating shaft 28 and the winch 27 are driven by the ratchet wheel 29 which rotates in a single direction, only the length of the steel wire rope 21 is increased, and the telescopic suction pipe 12 is convenient to keep a stable downward extending state all the time. When the telescopic suction pipe 12 needs to be lifted, the pawl is lifted, the meshing action of the pawl and the ratchet wheel 29 is released, and the hand wheel 210 is rotated reversely, so that the steel wire rope 21 can be wound back on the winch 27, and the operation and implementation are convenient.

Referring to fig. 5, the rotating shaft 28 is further fixedly connected with a first bearing 281 attached to an inner wall of the first through hole 251 and a second bearing 282 attached to an inner wall of the second through hole 261. After the first bearing 281 and the second bearing 282 are added, the friction between the rotating shaft 28 and the inner walls of the first through hole 281 and the second through hole 261 is reduced, so that the effect of prolonging the service life of the rotating shaft 28 is achieved. And the first bearing 281 and the second bearing 282 are low in price and easy to obtain, and can be continuously used after being replaced, so that the use cost is saved.

Referring to fig. 5, a tightening ring 283 is sleeved on one end of the rotating shaft 28 extending out of the second through hole 261. In the actual rotation process of the rotating shaft 28, the sliding condition in the long through hole 271 is easy to occur, and the tightening ring is additionally arranged, so that the stable operation of the rotating shaft 28 is kept.

The implementation principle of this application embodiment a pneumatic grain elevator with telescoping device does: the vacuum pump of the grain elevator provides suction force for the telescopic device 1, so that grains enter the telescopic suction pipe 12 from the feed inlet 121 under the action of vacuum negative pressure in the cavity of the telescopic suction pipe 12, then enter the sleeve 11, and finally are discharged into other conveying devices from the grain outlet 111.

After a period of pumping, the height of the grain heap becomes progressively lower. The hand wheel 210 is manually rotated, under the meshing action of the ratchet wheel 29 and the pawl, the winch 27 is driven to rotate in a single direction, and meanwhile, the steel wire rope 21 is extended to pass by the fixed pulley 22, so that the telescopic pulley 23 moves downwards.

The telescopic suction pipe 12 is driven by the telescopic pulley 23 to move downwards, is closer to the grain heap and continuously sucks the grain.

After the operation is finished, the engagement between the pawl and the ratchet 29 is released, the hand wheel 210 is swung in the reverse direction, the steel wire rope 21 is retracted to the original position, and the telescopic suction pipe 12 is lifted to the original height.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pneumatic grain elevator with telescoping device which characterized in that: comprises a telescopic device (1) and a driving device (2) for driving the telescopic device (1) to extend and retract up and down;

the telescopic device (1) comprises a telescopic suction pipe (12) arranged in the vertical direction and a sleeve (11) sleeved on the outer wall of the telescopic suction pipe (12), a grain inlet (121) is formed in the bottom end of the telescopic suction pipe (12), and a grain outlet (111) is formed in the top end of the sleeve (11).

2. The grain elevator with the telescoping device of claim 1, wherein: the driving device (2) comprises a half (24) arranged at the bottom of the telescopic suction pipe (12), a telescopic pulley (23) connected with the half (24) in a jogged mode and a fixed pulley (22) arranged on the sleeve (11);

the driving device (2) further comprises a steel wire rope (21), and one end of the steel wire rope (21) is fixedly connected with the telescopic pulley (23), bypasses the fixed pulley (22) and extends out.

3. The grain elevator with the telescoping device of claim 2, characterized in that: the half (24) comprises a first buckling part (241) and a second buckling part (242) which are used for buckling the outer wall of the telescopic straw (12), and a first fixing part (2411), a second fixing part (2412), a third fixing part (2421) and a fourth fixing part (2422) which are used for fixing the half (24) on the telescopic straw (12), wherein the first fixing part (2411) and the third fixing part (2421) are connected through bolts, the second fixing part (2412) is connected with the fourth fixing part (2422) through bolts, a first groove (2413) is formed in the side wall of the first fixing part (2411), and a second groove (2423) is formed in the side wall of the third fixing part (2421);

a connecting rod (233) used for being connected with the first fixing part (2411) and the third fixing part (2421) is arranged on the telescopic pulley (23), and a first convex block (231) embedded with the first groove (2413) and a second convex block (232) embedded with the second groove (2423) are arranged on the connecting rod (233).

4. The grain elevator with the telescoping device of claim 3, characterized in that: a first transverse plate (25) is fixedly connected to the first fixing portion (2411), a second transverse plate (26) is fixedly connected to the first buckling portion (241), a first through hole (251) is formed in the first transverse plate (25), and a second through hole (261) is formed in the second transverse plate (26);

first diaphragm (25) with wear to be equipped with pivot (28) between second diaphragm (26), the cover is equipped with on pivot (28) be used for with wire rope (21) fixed connection's capstan winch (27), the one end that first diaphragm (25) were stretched out in pivot (28) is connected with and is used for rotating hand wheel (210) of pivot (28).

5. The grain elevator with the telescoping device of claim 4, wherein: a ratchet wheel (29) is sleeved on the rotating shaft (28), and the ratchet wheel (29) is positioned between the hand wheel (210) and the first transverse plate (25);

the drive device (2) further comprises a pawl for engaging with the ratchet wheel (29) and a pin for rotationally connecting the first transverse plate (25) with the pawl.

6. The grain elevator with the telescoping device of claim 5, characterized in that: and a tight ring (283) is sleeved at one end of the rotating shaft (28) extending out of the second through hole (261).

7. The grain elevator with the telescoping device of claim 1, wherein: and a sealing ring (122) is arranged on the outer wall of the telescopic suction pipe (12), and the sealing ring (122) is used for sealing a gap between the inner wall of the sleeve (11) and the outer wall of the telescopic suction pipe (12).

8. The grain elevator with the telescoping device of claim 2, characterized in that: the sleeve (11) top cover is equipped with and is used for improving the reinforcing ring of sleeve (11) rigidity and intensity, fixedly connected with ring flange (112) on the reinforcing ring.