阅读说明：本技术 一种斗式提升机用畚斗 (Winnowing pan for bucket elevator ) 是由 曹正书 孔维恒 于 2020-12-11 设计创作，主要内容包括：本发明公开了一种斗式提升机用畚斗,包括畚斗主体,所述畚斗主体的内部设置有橡胶板,所述畚斗主体与橡胶板之间设置有拉力器,所述拉力器的数量为八个,且其等距离分布在橡胶板的四周,所述橡胶板的两侧边缘夹持固定有韧性金属条,所述橡胶板两侧的拉力器与韧性金属条连接,所述畚斗主体的前端外表面上端开设有插接槽,插接槽的内部插接有插接板,所述插接板的上端设置有遮挡板,该装置结构通过橡胶板与拉力器的配合,在畚斗主体运载物料时,物料在自身重力以及设备震动作用下向挤压橡胶板,橡胶板在自身弹性作用下配合拉力器拉伸产生弧形形变贴合畚斗主体地面,在倾倒畚斗主体内部粉末物料时进行弹性复原倾倒物料。(The invention discloses a dustpan for a bucket type lifter, which comprises a dustpan body, wherein a rubber plate is arranged in the dustpan body, tension devices are arranged between the dustpan body and the rubber plate, the number of the tension devices is eight, the tension devices are equidistantly distributed around the rubber plate, the edges of two sides of the rubber plate are clamped and fixed with tough metal strips, the tension devices on two sides of the rubber plate are connected with the tough metal strips, the upper end of the outer surface of the front end of the dustpan body is provided with an inserting groove, an inserting plate is inserted in the inserting groove, the upper end of the inserting plate is provided with a shielding plate, the device is structurally characterized in that when the dustpan body carries materials, the materials extrude the rubber plate under the self-gravity and equipment vibration effects, the rubber plate is stretched under the self-elasticity effect in cooperation with the tension devices to generate arc-shaped deformation to be attached to the surface of the dustpan body, when the powder materials in the bucket body are dumped, the materials are elastically restored and dumped.)

1. The utility model provides a winnowing pan for bucket elevator, includes winnowing pan main part (1), its characterized in that: the rubber plate (2) is arranged inside the dustpan main body (1), the spring tensioners (3) are arranged between the dustpan main body (1) and the rubber plate (2), the number of the spring tensioners (3) is eight, the spring tensioners are equidistantly distributed around the rubber plate (2), the edges of two sides of the rubber plate (2) are fixedly clamped with the ductile metal strips (21), the spring tensioners (3) on two sides of the rubber plate (2) are connected with the ductile metal strips (21), the upper end of the outer surface of the front end of the dustpan main body (1) is provided with an insertion groove, an insertion plate (45) is inserted into the insertion groove, and the upper end of the insertion plate (45) is provided with a shielding plate (4);

chest expander (3) include and constitute by two first bodys (31) that match each other and second body (32), the bottom of first body (31) is located the inside of second body (32), the upper end of first body (31) is provided with first holder (34), and the first installation otic placode of upper end fixedly connected with (35) of first holder (34), the bottom of second body (32) is provided with second holder (33), and the bottom fixedly connected with second installation otic placode (36) of second holder (33), the inside of first body (31) and second body (32) is provided with tension spring (37), and the both ends of tension spring (37) are connected with first holder (34) and second holder (33) respectively.

2. Winnowing pan for a bucket elevator according to claim 1, characterized in that: the lower end of the first clamp holder (34) is fixedly connected with an external thread cylinder (342), the external thread cylinder (342) is in a semi-cylindrical structure, and the outer surface is provided with an opening, the area of the opening is one third of that of the external thread cylinder (342), two clamping clapboards (341) are fixedly connected in the external thread cylinder (342) at equal intervals, a conical through hole groove (343) is arranged on the surface of the clamping clapboard (341) positioned at the bottommost end of the external thread cylinder (342), the top end of the tension spring (37) is clamped between the clamping partition plates (341) and fixed through the opening and the tapered through hole groove (343), the inner surface of the first tube (31) is provided with threads at a position close to the first clamp (34), and the first clamper (34) is connected with the first pipe body (31) by screw thread, the first clamper (34) and the second clamper (33) have the same structure, and the first clamp (34) and the second clamp (33) have the same thread rotating direction.

3. Winnowing pan for a bucket elevator according to claim 1, characterized in that: guide way (38) have been seted up to the surface of first body (31), and the top both sides of second body (32) are provided with the direction slider, and the bottom closure of guide way (38), the top is in the open mode, first body (31) and second body (32) are connected through direction slider and guide way (38) activity equipotential.

4. Winnowing pan for a bucket elevator according to claim 1, characterized in that: rectangular cavities (46) are formed in two sides of the shielding plate (4), a canvas main body (41) and an extension spring (42) are arranged inside the rectangular cavities (46), one end of the extension spring (42) is fixedly connected with the shielding plate (4), the other end is hooked at the edge of the canvas main body (41), and one end of the canvas main body (41) far away from the tension spring (42) extends to the outer surface of the shielding plate (4) through the rectangular cavity (46), and one end of the dustpan body (1) is fixedly connected with a bolt (44), two sides of the edge of the outer surface of the upper end of the dustpan body (1) and the dustpan body (1) are provided with sliding grooves (43), the bottom end of the bolt (44) is provided with the inside of a sliding groove (43), the bottom end of the bolt (44) is connected with a sliding block in a threaded manner, and the bolt (44) and the sliding block are distributed in an I-shaped structure, and the section of the sliding groove (43) is also matched with the bolt (44) and the sliding block in an I-shaped structure.

5. Winnowing pan for a bucket elevator according to claim 1, characterized in that: a tough metal plate is fixedly connected between the shielding plate (4) and the plug board (45), the plug board (45) and the plug groove are fixed through glass cement in a bonding mode, and the tough bending range of the tough metal plate ranges from 0 degree to 25 degrees.

6. Winnowing pan for a bucket elevator according to claim 1, characterized in that: the outer surface of the rear end of the bucket body (1) is fixedly connected to the surface of a traction belt of the elevator, and the traction belt of the elevator rotates clockwise to drive the bucket body (1) to move.

Technical Field

The invention relates to the technical field of material conveying devices, in particular to a winnowing pan for a bucket type elevator.

Background

The winnowing pan is one of the main fittings of the bucket elevator, generally uses a traction belt and a chain as a transmission member to continuously lift and convey loose powdery, granular and small blocky materials with the density less than or equal to 2.2t/m3, the winnowing pan commonly used by the bucket elevator is a plastic winnowing pan made of high polymer materials,

in a traditional bucket elevator, a bucket main body and a lifting belt are directly attached and fixed together, when the bucket main body is fed by a bottom wheel, the lifting belt bends along with the circumference of the bottom wheel, and a gap with a certain angle is formed between the lifting belt and the bucket main body arranged on the lifting belt, so that part of the lifted materials are embedded in the gap; when the lifting belt rotates at the position of the bottom wheel, the gap between the lifting belt and the dustpan body is gradually reduced until the dustpan body is tightly leaned against the lifting belt under the action of the fastening screw

In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved: 1. the bucket elevator carries and transports materials through the bucket in the operation process of the existing bucket elevator, particularly for the bucket elevator with a plurality of large specifications, in the process of transporting some dust with higher humidity and even granular materials, the traction belt of a bucket elevator or the chain drives the bucket to move, because the vibration amplitude brought by the operation process of the machine and the rising motion track of the bucket in the process of transporting the materials carried by the bucket are added, the phenomenon of compacting and caking of the dust and the granular materials in the bucket is easy to occur, further, when the bucket unloads materials in the unloading area of the elevator, the caking materials in the inner part are easy to adhere to the inner wall of the bucket, so that the materials are not completely unloaded, further influencing the next material filling, even having the step of manual shutdown and secondary cleaning, thereby reducing the material carrying efficiency and increasing the manual labor intensity; 2. aiming at some winnowing pans fully loaded with granular materials, the granular materials at the opening edge of the winnowing pans can be scattered at a small part under the vibration action in the carrying process under the vibration action of the equipment, and a plurality of winnowing pans are often equipped on the traction belt of the traditional bucket elevator, so that once the phenomenon occurs, the granular materials in the bottom end area of the equipment can be accumulated in a large quantity, the manual secondary cleaning operation is still needed, the working efficiency of the equipment is reduced, and the normal operation of the equipment is also influenced.

To this end, a bucket for a bucket elevator is proposed.

Disclosure of Invention

The invention aims to provide a dustpan for a bucket elevator, which is structurally characterized in that a rubber plate is matched with a pulling device, when a dustpan body carries materials, the materials downwards extrude the rubber plate under the action of self gravity and equipment vibration, the rubber plate is stretched by matching with the pulling device under the action of self elasticity to generate arc-shaped deformation to be attached to the ground of the dustpan body, when the powder materials in the dustpan body are dumped, the downward extrusion acting force of the materials is reduced until the downward extrusion acting force is smaller than the elastic acting force of the pulling device and the rubber plate, the powder materials in the dustpan body can be completely discharged under the elastic reaction force of the pulling device and the rubber plate, so that the accumulation of the materials attached to the materials is reduced, the shielding plate can shield the particle materials, the probability of material accumulation caused by scattering is reduced, the frequency of manual secondary cleaning is reduced, and the manual labor intensity is reduced, to solve the problems set forth in the background art described above.

In order to achieve the purpose, the invention provides the following technical scheme: a dustpan for a bucket type elevator comprises a dustpan body, wherein a rubber plate is arranged inside the dustpan body, a tension device is arranged between the dustpan body and the rubber plate, the number of the tension devices is eight, the tension devices are equidistantly distributed around the rubber plate, the edges of two sides of the rubber plate are clamped and fixed with ductile metal strips, the tension devices on two sides of the rubber plate are connected with the ductile metal strips, an insertion groove is formed in the upper end of the outer surface of the front end of the dustpan body, an insertion plate is inserted into the insertion groove, and a shielding plate is arranged at the upper end of the insertion plate;

the chest expander comprises a first pipe body and a second pipe body which are matched with each other, the bottom end of the first pipe body is located inside the second pipe body, the upper end of the first pipe body is provided with a first clamp holder, a first mounting lug plate is fixedly connected to the upper end of the first clamp holder, the bottom end of the second pipe body is provided with a second clamp holder, a second mounting lug plate is fixedly connected to the bottom end of the second clamp holder, tension springs are arranged inside the first pipe body and the second pipe body, and the two ends of each tension spring are respectively connected with the first clamp holder and the second clamp holder.

Through adopting above-mentioned technical scheme, the device structure passes through the cooperation of rubber slab and chest expander, when dustpan main part delivery material, the material is to extrusion rubber slab under self gravity and equipment vibration effect, the rubber slab cooperates the tensile production arc deformation of chest expander and laminates dustpan main part ground under self elastic action, when empting the inside powder material of dustpan main part, along with material self extrusion effort downwards reduces until being less than during chest expander and rubber slab self elastic action, can all discharge the inside powder material of dustpan main part under chest expander and rubber slab self elastic reaction force, thereby it piles up to reduce the material, and the shielding plate can shelter from granular material, reduce scattered and the accumulational probability of material that arouses, thereby reduce the frequency of artifical secondary clearance, reduce artifical labor intensity.

Preferably, the lower end of the first holder is fixedly connected with an external thread cylinder, the external thread cylinder is of a semi-cylindrical structure, the outer surface of the external thread cylinder is provided with an opening, the area of the opening is one third of that of the external thread cylinder, two clamping clapboards are fixedly connected with the inside of the external thread cylinder at equal intervals, a conical through hole groove is formed in the surface of the clamping clapboard positioned at the bottommost end of the external thread cylinder, the top end of the tension spring is clamped between the clamping clapboards through the opening and the conical through hole groove and is fixed, threads are arranged at the position, close to the first holder, of the inner surface of the first pipe body, the first holder is in threaded connection with the first pipe body, the first holder and the second holder are identical in structure, and the rotation directions of.

By adopting the technical scheme, the tensioner is mainly used as elastic compensation after elastic deformation of the rubber plate in the normal use process, in order to ensure that powder materials are unloaded under the elastic deformation of the rubber plate and the elastic compensation of the tensioner in the unloading process of the powder materials, then the size and the specification of the rubber plate required by the bucket main body with different specifications in the use process are still required to be considered in the actual use process, in order to be adapted to the rubber plates with different specifications, therefore, the tension spring in the tensioner needs to be replaced according to the requirement in the actual installation process, the elastic compensation force is ensured to be sufficient, the structure is stable in operation, meanwhile, the loss of the tensioner and the rubber plate needs to be considered by a user after the rubber plate and the tensioner are used for a long time, if the normal use requirement is not met, the user needs to replace the spring in the tensioner or replace the rubber plate per se, therefore, when the tension device is connected with the rubber plate in a manner that the bolt is inserted into the first mounting lug plate and the second mounting lug plate to connect and fix the rubber plate and the dustpan main body, the subsequent disassembling work of the rubber plate is simple and convenient, when the tension spring in the tension device is replaced, a user firstly fixes the second clamp holder to be fixed, then twists and rotates the first clamp holder to disassemble the first clamp holder through the threaded connection with the second pipe body, then the first pipe body moves downwards, the top end of the tension spring is exposed at the moment, the user takes the top end of the tension spring out of the clamping partition plate in the external thread cylinder, then twists and rotates the other end of the tension spring which is also disassembled by the first clamp holder to complete the disassembling work of the tension spring, when a new tension spring is replaced, the tension spring is inserted and installed in the first pipe body and the second pipe body, and firstly, the bottom end of the tension spring is clamped in the clamping partition plate, then the first body of downward removal, the clamping baffle inside of the extension spring top joint in first holder that will expose is fixed, then first holder and second holder press in opposite directions in step with first body and second body screw thread rotation be connected fixedly can accomplish extension spring's change, make it satisfy the demand to the expander elastic compensation dynamics under the different conditions of user.

Preferably, the outer surface of the first pipe body is provided with a guide groove, guide sliders are arranged on two sides of the top end of the second pipe body, the bottom end of the guide groove is closed, the top end of the guide groove is in an open state, and the first pipe body and the second pipe body are movably connected in an equal-class direction with the guide groove through the guide sliders.

By adopting the technical scheme, the chest expander is in friction contact with materials for a long time when in normal use, so that a user needs to consider the loss of the first tube body and the second tube body in the chest expander, and simultaneously, in order to prevent the first tube body and the second tube body from rotating to distort the internal tension spring and reduce the loss degree of the tension spring, so that the first tube body and the second tube body need to be ensured to move in the same direction and opposite directions when in actual use, the equal-position motion of the first tube body and the second tube body in the stretching motion process of the internal tension spring can be met through the matching use of the first tube body, the second tube body and the guide slide block, the damage caused by the overlarge torsion of the internal tension spring due to the rotation of the first tube body and the second tube body is reduced, and simultaneously, in order to ensure that the accidental overlarge tensile strength of the tension spring in the stretching motion process causes the, the bottom of guide way is in the closure state, consequently when extension spring's pulling force was too big, can not break away from under guide way and direction slider's effect between first body and the second body, to the further injecing of extension spring's maximum tensile strength scope, avoids the chest expander to break, extension spring distortion.

Preferably, a rectangular cavity is formed in two sides of the shielding plate, a canvas main body and an extension spring are arranged inside the rectangular cavity, one end of the extension spring is fixedly connected with the shielding plate, the other end of the extension spring is hung on the edge of the canvas main body, one end, far away from the extension spring, of the canvas main body extends to the outer surface of the shielding plate through the rectangular cavity, a bolt is fixedly connected with one end of the extension spring, sliding grooves are formed in two sides of the edge of the outer surface of the upper end of the dustpan main body, the bottom end of the bolt is provided with the inside of the sliding grooves, the bottom end of the bolt is in threaded connection with a sliding block, the bolt and the sliding block are distributed in an I-shaped.

By adopting the technical scheme, aiming at the problem that the rear end surface of the bucket body is attached to the traction belt of the bucket elevator in the carrying and transporting process of granular materials, the outer surface of the front end is slightly inclined, so that the granular materials are scattered and accumulated under the inclined action and the vibration action caused by the operation of the equipment in the carrying process, the shielding plate mainly can compensate the bearing of the materials at the front end of the bucket body to a certain extent, the scattering probability of the granular materials is reduced, but if the bucket elevator is used in a large workshop in the actual use process, the installation intervals of a plurality of bucket elevators are smaller, the equipment operation process is the same, so that the resonance phenomenon can occur in the operation of a plurality of groups of equipment, the vibration amplitude of the equipment is larger than the vibration amplitude of the single bucket elevator in use, and a user needs to consider the protection of the materials at the front end of the bucket body, its both sides also need protect, reduce the probability that the granule material scatters, therefore the user when using, can pass through the stretch bolt, pull out the canvas main part from the rectangle cavity of shielding plate both sides, then the slider through the bolt bottom removes with spout sliding connection, then twist the bolt here and support to the spout edge and fix, shielding plate at this moment under the common mating reaction of both sides canvas main part, realize the trilateral protection of the top edge of winnowing pan main part, further reduction granule material's probability of scattering.

Preferably, a ductile metal plate is fixedly connected between the shielding plate and the insertion plate, the insertion plate and the insertion groove are fixed through glass cement, and the ductile bending range of the ductile metal plate is 0-25 degrees.

Through adopting above-mentioned technical scheme, the shielding plate is when reading granular material and protecting and sheltering from, because equipment self vibrations, the user need consider the mounting means between shielding plate and the dustpan main part, if adopt the tradition to peg graft fixedly, so the long-time protection of shielding plate shelters from and the dustpan main part between can the stress that the stress is too big, the fracture appears in the stress contact that vibrations frequently caused, consequently through setting up toughness metal version between plug-in board and the shielding plate in the device, make have certain buffering dynamics between shielding plate and the dustpan main part, reduce cracked possibility.

Preferably, the outer surface of the rear end of the bucket body is fixedly connected to the surface of a traction belt of the elevator, and the traction belt of the elevator rotates clockwise to drive the bucket body to move.

Compared with the prior art, the invention has the beneficial effects that:

the device structure is matched with the spring exerciser through the rubber plate, when the dustpan body carries materials, the materials downwards extrude the rubber plate under the action of self gravity and equipment vibration, the rubber plate is matched with the spring exerciser to stretch to generate arc-shaped deformation to be attached to the ground of the dustpan body under the action of self elasticity, when powder materials in the dustpan body are dumped, the powder materials in the dustpan body can be completely discharged under the action of self elastic reaction force of the spring exerciser and the rubber plate when the downward extrusion action force of the materials is reduced until the downward extrusion action force of the materials is smaller than the self elastic action force of the spring exerciser and the rubber plate, so that the accumulation of the materials attached to the materials is reduced, the shielding plate can shield the granular materials, the probability of material accumulation caused by scattering is reduced, the frequency of manual secondary cleaning is reduced, and the manual labor intensity is reduced;

aiming at the granular materials in the carrying and transporting process, because the rear end face of the dustpan body is attached to the traction belt of the bucket elevator, the outer surface of the front end slightly inclines, so that the granular materials are scattered and accumulated under the action of the inclination of the granular materials in the carrying process and the vibration caused by the self operation of equipment, and the shielding plate mainly can carry the materials at the front end of the dustpan body to perform certain compensation and reduce the scattering probability of the granular materials.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a side view of the internal structure of the bucket body of the present invention;

FIG. 3 is a structural view of a rubber sheet of the present invention;

FIG. 4 is a view of the cover according to the present invention in combination with a canvas body;

fig. 5 is a structural view of the chest expander of the present invention;

fig. 6 is an internal structural view of the chest expander of the present invention;

FIG. 7 is a view of the first clamp of the present invention in combination with a tension spring;

fig. 8 is a combination view of the shielding plate of the present invention and a rectangular cavity.

Description of reference numerals:

1. a dustpan body; 2. a rubber plate; 21. a ductile metal strip; 3. a chest expander; 31. a first pipe body; 32. a second tube body; 33. a second gripper; 34. a first gripper; 341. clamping the partition plate; 342. an externally threaded barrel; 343. a tapered through-hole slot; 35. a first mounting lug; 36. a second mounting lug; 37. a tension spring; 38. a guide groove; 4. a shielding plate; 41. a canvas main body; 42. an extension spring; 43. a chute; 44. a bolt; 45. a plugboard; 46. a rectangular cavity.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

a dustpan for a bucket type elevator comprises a dustpan main body 1, wherein a rubber plate 2 is arranged in the dustpan main body 1, a tension device 3 is arranged between the dustpan main body 1 and the rubber plate 2, the tension device 3 is eight in number and distributed around the rubber plate 2 at equal intervals, flexible metal strips 21 are fixedly clamped on two side edges of the rubber plate 2, the tension devices 3 on two sides of the rubber plate 2 are connected with the flexible metal strips 21, in order to ensure that powder materials flow into the dustpan main body 1 from two sides of the rubber plate 2, namely between the rubber plate 2 and the dustpan main body 1, the flexible metal strips are fixedly clamped on two side edges of the rubber plate 2, so that the flexible metal strips 21 on the two side edges of the rubber plate 2 are synchronously deformed and are in close contact with two sides of the dustpan main body 1 in the elastic deformation process, and the elasticity of the rubber plate 2 can be increased due to the addition of the flexible metal strips 21, the material dumping and unloading are assisted, the upper end of the outer surface of the front end of the dustpan main body 1 is provided with an insertion groove, an insertion plate 45 is inserted into the insertion groove, and the upper end of the insertion plate 45 is provided with a shielding plate 4;

the chest expander 3 comprises a first pipe body 31 and a second pipe body 32 which are matched with each other, the bottom end of the first pipe body 31 is positioned inside the second pipe body 32, a first clamp 34 is arranged at the upper end of the first pipe body 31, a first mounting lug plate 35 is fixedly connected at the upper end of the first clamp 34, a second clamp 33 is arranged at the bottom end of the second pipe body 32, a second mounting lug plate 36 is fixedly connected at the bottom end of the second clamp 33, tension springs 37 are arranged inside the first pipe body 31 and the second pipe body 32, two ends of each tension spring 37 are respectively connected with the first clamp 34 and the second clamp 33, the device structure is matched with the chest expander 3 through a rubber plate 2, when the bucket body 1 carries materials, the materials extrude the rubber plate 2 under the self gravity and the vibration action of equipment, the rubber plate 2 is matched with the chest expander 3 under the self elastic action to stretch to generate arc-shaped deformation to be jointed with the bucket body 1, when empting the inside powder material of dustpan main part 1, reduce until being less than chest expander 3 and rubber slab 2 self elastic force along with material self extrusion effort downwards, can be with the whole discharges of the inside powder material of dustpan main part 1 under chest expander 3 and 2 self elastic reaction forces of rubber slab, thereby it piles up to reduce the material attached material, and shielding plate 4 can shelter from granular material, reduce scattered and the accumulational probability of material that arouses, thereby reduce the frequency of artifical secondary clearance, reduce the artifical labour dynamics.

As an embodiment of the present invention: the lower end of the first holder 34 is fixedly connected with an external thread cylinder 342, the external thread cylinder 342 is in a semi-cylindrical structure, the outer surface of the external thread cylinder 342 is provided with an opening, the area of the opening is one third of that of the external thread cylinder 342, two holding partition plates 341 are fixedly connected inside the external thread cylinder 342 at equal intervals, the surface of the holding partition plate 341 positioned at the bottom end of the external thread cylinder 342 is provided with a tapered through hole groove 343, the top end of the tension spring 37 is clamped between the holding partition plates 341 through the opening and the tapered through hole groove 343 and is fixed, the position of the inner surface of the first tube 31 close to the first holder 34 is provided with threads, the first holder 34 is in threaded connection with the first tube 31, the first holder 34 and the second holder 33 have the same structure, the first holder 34 and the second holder 33 have the same thread rotation direction, and by adopting the technical scheme, the tensioner 3 is mainly used as elastic compensation after elastic deformation of the rubber plate 2, in order to ensure the unloading of powder materials under the elastic deformation of the rubber plate 2 and the elastic compensation of the chest expander 3 in the unloading process, then the size and the specification of the rubber plate 2 required by the bucket body 1 with different specifications in use still need to be considered in the actual use process, and in order to adapt to the rubber plate 2 with different specifications, therefore, the tension spring 37 in the chest expander 3 in the actual installation process needs to be replaced according to the requirement, the sufficient elastic compensation force is ensured, the structure runs stably, meanwhile, the loss of the chest expander 3 and the rubber plate 2 needs to be considered by a user after the rubber plate 2 and the chest expander 3 are used for a long time, if the normal use requirement is not met, the user needs to replace the spring in the chest expander 3 or replace the rubber plate 2 per se, therefore, the connection mode of the chest expander 3 and the rubber plate 2 is that the bolt 44 is inserted into the first mounting lug 35 and the second mounting lug 36 to connect the rubber plate 2 and the bucket body 1 in a mode that the bolt 44 is inserted into the first The rubber plate 2 is fixed, the subsequent disassembling work of the rubber plate 2 is simple and convenient, when the extension spring 42 in the tension device 3 is replaced, a user firstly fixes the second clamp holder 33 without moving, then twists and rotates the first clamp holder 34 to disassemble through the threaded connection with the second tube 32, then the first tube 31 moves downwards, the top end of the extension spring 42 is exposed, the user removes the top end of the extension spring 42 from the clamping partition 341 in the external thread cylinder 342, then twists and rotates the first clamp holder 34 and also disassembles the other end of the extension spring 42 to complete the disassembling work of the extension spring 42, when a new extension spring 42 is replaced, the extension spring 42 is inserted and installed inside the first tube 31 and the second tube 32, the bottom end of the extension spring 42 is firstly clamped in the clamping partition 341 in the first clamp holder 34, then the first tube 31 moves downwards, the top end of the exposed extension spring 42 is clamped inside the clamping partition 341 in the first clamp holder 34 to be fixed, then, the first clamper 34 and the second clamper 33 are pressed oppositely and synchronously connected and fixed with the first tube 31 and the second tube 32 in a thread rotation manner, so that the extension spring 42 can be replaced, and the requirements of users on the elastic compensation force of the tension device 3 under different conditions can be met.

As an embodiment of the present invention: the outer surface of the first tube 31 is provided with a guide groove 38, two sides of the top end of the second tube 32 are provided with guide sliders, the bottom end of the guide groove 38 is closed, the top end is in an open state, the first tube 31 and the second tube 32 are movably connected with the guide groove 38 in an equal-position direction through the guide sliders, and the chest expander 3 is in friction contact with materials for a long time in normal use, so that a user needs to consider the loss of the first tube 31 and the second tube 32 in the chest expander 3, and simultaneously, in order to prevent the torsion of the internal tension spring 37 caused by the rotation between the first tube 31 and the second tube 32, the loss degree of the tension spring 42 is reduced, so that in actual use, the equal-position opposite movement of the first tube 31 and the second tube 32 in the same direction needs to be ensured, and the equal-position movement of the first tube 31 and the second tube 32 in the stretching movement process of the internal tension spring 42 can be met through the matching use of the guide grooves 38 of, reduce both and rotate the too big damage that causes of inside extension spring 42 torsion, simultaneously in order to guarantee that extension spring 42 the unexpected tensile strength appears in the tensile motion process and too greatly cause extension spring 42 tensile deformation, the phenomenon that chest expander 3 bursts apart takes place, the bottom of guide way 38 is in the closure state, consequently when extension spring 42's pulling force is too big, can not break away from under the effect of guide way 38 and direction slider between first body 31 and the second body 32, further inject the biggest tensile strength scope of extension spring 42, avoid chest expander 3 to burst apart, extension spring 42 distorts and deforms.

As an embodiment of the present invention: the two sides of the shielding plate 4 are provided with rectangular cavities 46, the inside of the rectangular cavity 46 is provided with a canvas main body 41 and an extension spring 42, one end of the extension spring 42 is fixedly connected with the shielding plate 4, the other end is hooked at the edge of the canvas main body 41, one end of the canvas main body 41 far away from the extension spring 42 extends to the outer surface of the shielding plate 4 through the rectangular cavity 46, one end of the canvas main body is fixedly connected with a bolt 44, the two sides of the edge of the outer surface of the upper end of the dustpan main body 1 are provided with sliding grooves 43, the bottom end of the bolt 44 is provided with the inside of the sliding grooves 43, the bottom end of the bolt 44 is connected with a sliding block in a threaded manner, the bolt 44 and the sliding block are distributed in an I-shaped structure, the section of the sliding groove 43 is also matched with the bolt 44 and the sliding block, by adopting the technical scheme, aiming at, because the outer surface of the front end is slightly inclined, the granular materials are scattered and accumulated under the inclined action in the carrying process and the vibration action caused by the operation of the equipment, the shielding plate 4 can mainly compensate the material at the front end of the dustpan main body 1 to reduce the scattering probability of the granular materials, but in the actual use process, when the dustpan main body is used in a large workshop, the installation space between a plurality of bucket elevators is smaller, the equipment operation process is the same, so the resonance phenomenon can occur in the operation of a plurality of groups of equipment, the vibration amplitude of the equipment is larger than that of the single bucket elevator, therefore, a user needs to consider the protection of the material at the front end of the dustpan main body 1, protect the two sides of the bucket elevator, reduce the scattering probability of the granular materials, and can stretch the bolt 44 when the user uses the dustpan, the canvas main body 41 is pulled out from the rectangular cavities 46 at the two sides of the shielding plate 4, then the canvas main body moves through the sliding block at the bottom end of the bolt 44 and the sliding groove 43 in a sliding connection mode, then the bolt 44 is screwed to abut against the edge of the sliding groove 43 for fixing, at the moment, the shielding plate 4 realizes three-side protection of the edge at the top end of the dustpan main body 1 under the common cooperation effect of the canvas main bodies 41 at the two sides, and the scattering probability of granular materials is further reduced.

Furthermore, a ductile metal plate is fixedly connected between the shielding plate 4 and the insertion plate 45, the insertion plate 45 and the insertion groove are fixed through glass cement, the ductile bending range of the ductile metal plate is 0-25 degrees, when the shielding plate 4 is used for reading granular materials for protection and shielding, due to the self vibration of the equipment, a user needs to consider the installation mode between the shielding plate 4 and the dustpan main body 1, if the traditional insertion fixing mode is adopted, the shielding plate 4 can generate overlarge stress and fracture due to frequent vibration stress contact between the shielding plate 4 and the dustpan main body 1 for a long time, so that a ductile metal plate is arranged between the shielding plate 45 and the shielding plate 4 in the device, a certain buffering force is generated between the shielding plate 4 and the dustpan main body 1, the fracture possibility is reduced, the outer surface of the rear end of the dustpan main body 1 is fixedly connected to the surface of a traction belt of a lifting machine, and the traction belt of the hoister rotates clockwise to drive the bucket body 1 to move.

The working principle is as follows:

the device structure is through the cooperation of rubber slab 2 and chest expander 3, when the dustpan main body 1 carries the material, the material extrudes the rubber slab 2 downwards under the action of self gravity and equipment vibration, the rubber slab 2 is matched with the chest expander 3 to stretch to generate arc-shaped deformation to be attached to the surface of the dustpan main body 1 under the action of self elasticity, when the powder material in the dustpan main body 1 is dumped, the downward extrusion acting force of the material is reduced until the downward extrusion acting force is smaller than the elastic acting force of the chest expander 3 and the rubber slab 2, the powder material in the dustpan main body 1 can be completely discharged under the elastic reaction force of the chest expander 3 and the rubber slab 2, so that the material adhesion material accumulation is reduced, the shielding plate 4 can shield the granular material, the probability of material accumulation caused by scattering is reduced, the frequency of manual secondary cleaning is reduced, and the manual labor intensity is reduced;

aiming at the granular materials, the rear end surface of the dustpan body 1 is attached to a bucket elevator traction belt, so that the outer surface of the front end is slightly inclined, the granular materials are scattered and accumulated under the action of the inclination of the granular materials and the vibration caused by the self operation of equipment in the carrying process, the shielding plate 4 mainly can compensate the bearing of the materials at the front end of the dustpan body 1 to a certain extent, and the scattering probability of the granular materials is reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.