Aggregate elevator for asphalt production

Abstract

The utility model provides an aggregate elevator for asphalt production, which is used for sealing an opening when bearing aggregate, so that the aggregate cannot fall outwards from a hopper due to shaking, and the phenomenon that people are injured is not easily caused. Comprising a z-shaped machine frame, a z-shaped containing groove formed in the z-shaped machine frame, a feeding port formed in the lower end of the z-shaped machine frame, a discharging port formed in the upper end of the z-shaped machine frame, four transmission wheels arranged on the z-shaped machine frame, chains arranged among the four transmission gears and located in the z-shaped containing groove, and a transmission mechanism arranged between one transmission wheel and the z-shaped machine frame. Each hopper comprises a hopper body hinged to the chain, a hopper opening formed in the upper end face of the hopper body, two connecting plates arranged on the right side of the upper end of the hopper body, and a cover plate with the right end rotatably arranged between the two connecting plates; and a linkage mechanism is arranged between the cover plate and the z-shaped rack.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an aggregate elevator for asphalt production. Background Art

[0002] Asphalt is a dark brown complex mixture of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid, mostly in the form of liquid or semi-solid petroleum. The surface is black and soluble in carbon disulfide and carbon tetrachloride. Asphalt is an organic gelling material that is waterproof, moisture-proof and anti-corrosive. Asphalt can be mainly divided into three types: coal tar asphalt, petroleum asphalt and natural asphalt: among them, coal tar asphalt is a by-product of coking. Petroleum asphalt is the residue after crude oil distillation. Natural asphalt is stored underground, some of which form mineral layers or accumulate on the surface of the earth's crust. Asphalt is mainly used in industries such as coatings, plastics, rubber, and paving roads.

[0003] Aggregate is an important building material, mainly used in the production of building materials such as concrete, asphalt, cement mortar, etc. Aggregate can be divided into coarse aggregate and fine aggregate. Coarse aggregate is usually a stone with a larger particle size, such as crushed stone or pebbles, which plays the role of a skeleton in concrete; fine aggregate is usually sand with a smaller particle size, which is used to fill the gaps between coarse aggregate. The choice of aggregate has an important influence on the strength, durability and working performance of concrete. Common aggregates include sand, gravel, crushed stone, etc. In concrete, aggregate usually accounts for 70% to 80% of the total volume, which has an important impact on the performance and service life of the building.

[0004] In some production and use scenarios, aggregates need to be lifted from a low position to a high position by an aggregate elevator or other equipment. Traditional aggregate elevators are divided into Z-shaped elevators, vertical elevators, inclined elevators, etc. The Z-shaped elevator (also known as Z-type elevator, Z-type bucket elevator, rotating bucket elevator, Z-type feeder) is currently operating normally in the following production industries: refractory materials, mineral products industry, polyvinyl chloride plastic particles, pet litter, food industry, chemical and pharmaceutical industry, hardware and electrical materials industry, military manufacturing industry, etc.

[0005] like Figure 1As shown, the Z-shaped elevator in the prior art includes a Z-shaped frame 1', a Z-shaped receiving groove 2' opened on the Z-shaped frame 1', four transmission wheels 3' arranged on the Z-shaped frame 1' and located in the Z-shaped receiving groove 2', a chain 4' arranged between the four transmission wheels 3' and located in the Z-shaped receiving groove 2', a transmission mechanism 5' arranged between one of the transmission wheels 3' and the Z-shaped frame 1' and used for driving the transmission wheel 3' to rotate so as to drive the chain 4' to move, and a transmission mechanism 5' hingedly arranged on the chain 4' for accommodating aggregates and moving the aggregates on the chain 4'. A plurality of hoppers 6' follow the chain 4' to move to predetermined positions when moving, a discharge port 7' provided on the Z-shaped frame 1' for pouring aggregate out when the hopper 6' follows the chain 4' to move to the predetermined position, a limiting block 8' provided on the Z-shaped frame 1' and located in the Z-shaped receiving groove 2' for turning the hopper 6' to the left to pour aggregate out of the discharge port 7' when the hopper 6' follows the chain 4' to move to the predetermined position, a feeding port 9' provided on the Z-shaped frame 1', and four driving wheels 3' are arranged in a Z-shape along the Z-shaped frame 1'.

[0006] When it is necessary to lift the aggregate from a low position to a high position, the aggregate is poured into the hopper at the feed port. As the transmission mechanism drives the transmission wheels, each transmission wheel drives the chain to move, thereby driving the hopper to the discharge port of the Z-shaped frame through the chain. As the chain moves and the limiting block cooperates, the hopper flips to the left so that the opening of the hopper faces the discharge port, thereby pouring out the aggregate in the hopper. As the chain moves, the hopper moves to the position of the feed port again, thereby repeating the conveying action.

[0007] Although the Z-shaped elevator in the prior art can transport aggregate from a low place to a high place, it still has certain defects:

[0008] When the hopper that moves with the chain to the top of the discharge port flips to the left to pour out the aggregate, the hopper is easily shaken on the chain due to the weight of the aggregate and the pouring process, causing the chain to shake as well. Other hoppers in transportation cannot close the opening position when carrying aggregates, causing some aggregates transported to a high place to shake and fall out of the hopper, which can easily cause the aggregates to hit the ground and cause injuries. Utility Model Content

[0009] The purpose of the utility model is to address the defects and shortcomings of the prior art and to provide an aggregate elevator for asphalt production that can close the opening when carrying aggregate, so that part of the aggregate transported to a high place will not be shaken and fall out of the hopper, and it is not easy for the aggregate to hit the ground and cause injuries.

[0010] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an aggregate elevator for asphalt production, comprising a Z-shaped frame, a Z-shaped containing groove opened on the Z-shaped frame, a feeding port opened on the right side of the lower end of the Z-shaped frame, a discharging port opened on the left side of the upper end of the Z-shaped frame, four transmission wheels arranged on the Z-shaped frame and located in the Z-shaped containing groove, a chain arranged between the four transmission wheels and located in the Z-shaped containing groove, a transmission mechanism arranged between one of the transmission wheels and the Z-shaped frame for driving the transmission wheel to rotate so as to drive the chain to move, a plurality of hoppers hingedly arranged on the chain for accommodating aggregates and moving with the chain to above the discharging port when the chain moves, a limiting block arranged on the Z-shaped frame and located above the discharging port for causing the hopper to flip to the left when the hopper follows the chain to move above the discharging port so that the aggregate in the hopper can be poured out from the discharging port, and the hopper comprises a limiting block hingedly arranged on the chain The hopper body is used for accommodating aggregates on the chain and can follow the chain to move above the discharge port when the chain moves, a hopper opening opened on the upper end surface of the hopper body, two connecting plates arranged on the right side of the upper end of the hopper body and symmetrically arranged front and back, and a cover plate rotatably arranged at the right end between the two connecting plates for the hopper body to carry aggregates and to flip to the left to close the hopper opening before the hopper body follows the chain to move above the discharge port to prevent the aggregates from falling out of the hopper body due to shaking, and to flip to the right to open the hopper opening when the hopper flips to the left to pour out the aggregates so that the aggregates can be poured out from the discharge port, and a linkage mechanism is arranged between the cover plate and the Z-shaped frame on the right side of the feed port for pushing the cover plate to flip to the right to open the hopper opening before the chain drives the hopper body to move and pass through the feed port so that the aggregates can enter the hopper body from the feed port, and after the chain drives the hopper body to move and pass through the feed port, driving the cover plate to flip to the left to close the hopper opening to prevent the aggregates from falling out of the hopper body due to shaking.

[0011] A further improvement is that the linkage mechanism includes a tilting portion arranged at the left end of the cover plate, a convex cavity opened on the Z-shaped frame and connected to the Z-shaped receiving groove at the lower end, a linkage plate whose upper end is vertically arranged on the Z-shaped frame and located in the convex cavity and whose lower end is located in the Z-shaped receiving groove, and is used for gradually pushing the tilting portion to drive the cover plate to flip right before the chain drives the bucket body to move and pass through the feed port to open the bucket mouth so that aggregate can enter the bucket body from the feed port, and a flat scroll spring fixedly arranged between the two connecting plates and the right end of the cover plate, and is used for contracting to generate elastic potential energy when the linkage plate gradually pushes the tilting portion to drive the cover plate to flip right, and releasing the elastic potential energy after the chain drives the bucket body to move and pass through the feed port to drive the driving cover plate to flip left to close the bucket mouth.

[0012] A further improvement is that: the warping portion is an inclined portion or an arc-shaped portion.

[0013] A further improvement is that: the bucket body is provided with a pushing device for pushing the aggregate in the bucket body to pour out toward the discharge port when the bucket body follows the chain to move above the discharge port and flips to the left.

[0014] A further improvement is that the pushing device includes a load-bearing plate which can be lifted and arranged in the bucket body for carrying the aggregate when the aggregate enters the bucket body and can move closer to or farther away from the end of the opening in the bucket body when driven by an external force, and a compression spring which is fixedly arranged between the lower end of the load-bearing plate and the bucket body and is used to contract and generate elastic potential energy when the load-bearing plate carries the aggregate so that the load-bearing plate moves away from the end of the opening in the bucket body and release the elastic potential energy when the bucket body flips to the left so that the cover plate is pushed by the aggregate to open the bucket mouth, so as to drive the load-bearing plate to move closer to the end of the opening in the bucket body, thereby pushing the aggregate in the bucket body to pour out to the discharge port.

[0015] A further improvement is that the cover plate is arranged to be inclined from left to right.

[0016] A further improvement is that: the number of the compression springs is two, and the two compression springs are symmetrically arranged between the lower end of the bearing plate and the bucket body.

[0017] A further improvement is that: the limit block is an arc-shaped limit block.

[0018] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: before the chain drives the bucket body to move and passes through the feed port, the linkage mechanism pushes the cover plate to flip right to open the bucket mouth so that aggregate can enter the bucket body from the feed port, and after the chain drives the bucket body to move and passes through the feed port, the cover plate is driven to flip left to close the bucket mouth to prevent the aggregate from shaking and falling out of the bucket body, and when the bucket body that follows the chain to move to the top of the discharge port flips left to pour out the aggregate, the cover plate is pushed by the aggregate and flips right, so that the cover plate opens the bucket mouth, so that the aggregate is poured out from the bucket mouth to the discharge port, and the setting of the cover plate can close the opening position when carrying aggregate, which will not cause part of the aggregate transported to a high place to fall out of the bucket due to shaking, and it is not easy for the aggregate to hit the ground and cause injuries.

[0019] Further effect: before the bucket body passes through the feed port, the linkage plate pushes the tilting part to drive the cover plate to flip to the right, so that the bucket mouth is opened, which is convenient for workers to pour aggregates from the feed port into the bucket body. After the aggregates are poured into the bucket body, the bucket body follows the movement of the chain to pass through the feed port, and the linkage plate is no longer in contact with the tilting part. The flat scroll spring releases its elastic potential to drive the drive cover plate to flip to the left, thereby closing the bucket mouth and preventing the aggregates from being shaken and poured out.

[0020] Further effect: when the bucket body flips to the left and the cover plate is pushed by the aggregate to open the bucket mouth, the aggregate slides out from the bucket body toward the bucket mouth end toward the discharge port, and as the aggregate decreases, the compression spring releases elastic potential energy, thereby driving the bearing plate to push the aggregate in the bucket body toward the discharge port, and the force of pouring the aggregate toward the discharge port is increased by pushing the aggregate, thereby reducing the phenomenon that the last aggregate cannot push the cover plate to flip to the right and open the bucket mouth, and reducing the phenomenon that the aggregate cannot be completely poured out of the bucket body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a structural schematic diagram of a Z-shaped hoist in the prior art;

[0023] Figure 2 It is a structural schematic diagram of the utility model;

[0024] Figure 3 It corresponds to Figure 2 A magnified view of part A;

[0025] Figure 4 It corresponds to Figure 2 A magnified view of part B;

[0026] Figure 5 It is a top view of the bucket body in the utility model.

[0027] Explanation of the accompanying drawings: Z-shaped frame 1, Z-shaped containing groove 2, feed port 3, discharge port 4, transmission wheel 5, chain 6, transmission mechanism 7, limit block 8, bucket body 9, bucket mouth 10, connecting plate 11, cover plate 12, lift portion 13, convex cavity 14, linkage plate 15, flat scroll spring 16, bearing plate 17, compression spring 18. DETAILED DESCRIPTION

[0028] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0029] See also Figures 2 to 5As shown, the technical solution adopted in this specific embodiment is: an aggregate elevator for asphalt production, comprising a Z-shaped frame 1, a Z-shaped receiving groove 2 opened on the Z-shaped frame 1, a feeding port 3 opened on the right side of the lower end of the Z-shaped frame 1, a discharging port 4 opened on the left side of the upper end of the Z-shaped frame 1, four transmission wheels 5 arranged on the Z-shaped frame 1 and located in the Z-shaped receiving groove 2, a chain 6 arranged between the four transmission wheels 5 and located in the Z-shaped receiving groove 2, and a chain 6 arranged between one of the transmission wheels 5 and the Z-shaped frame 1. The transmission mechanism 7 between the frames 1 is used to drive the transmission wheel 5 to rotate so as to drive the chain 6 to move, a plurality of hoppers hingedly arranged on the chain 6 for accommodating aggregates and can follow the chain 6 to move above the discharge port 4 when the chain 6 moves, and a limiting block 8 arranged on the Z-shaped frame 1 above the discharge port 4 for turning the hopper to the left when the hopper follows the chain 6 to move above the discharge port 4 so that the aggregate in the hopper can be poured out from the discharge port 4. The hopper includes a limiting block 8 hingedly arranged on the chain 6 for accommodating aggregates and can follow the chain 6 to move above the discharge port 4. The bucket body 9 is used to accommodate and can follow the chain 6 to move to the top of the discharge port 4 when the chain 6 moves, the bucket mouth 10 is opened on the upper end surface of the bucket body 9, two connecting plates 11 are arranged on the right side of the upper end of the bucket body 9 and are symmetrically arranged in front and back, and the right end can be rotatably arranged between the two connecting plates 11 for closing the bucket mouth 10 when the bucket body 9 carries the aggregate and is turned left before the bucket body 9 follows the chain 6 to move to the top of the discharge port 4 to prevent the aggregate from falling out of the bucket body 9 due to shaking and being pushed by the aggregate when the bucket is turned left to pour out the aggregate The cover plate 12 is turned rightward to open the bucket mouth 10 so that the aggregate can be poured out from the discharge port 4. A linkage mechanism is provided between the cover plate 12 and the z-shaped frame 1 on the right side of the feed port 3, which is used to push the cover plate 12 to turn rightward to open the bucket mouth 10 before the chain 6 drives the bucket body 9 to move and pass through the feed port 3, and after the chain 6 drives the bucket body 9 to move and pass through the feed port 3, the cover plate 12 is driven to turn leftward to close the bucket mouth 10 to prevent the aggregate from falling out of the bucket body 9 due to shaking. The cover plate 12 is inclined or horizontally arranged. The arrangement of the transmission mechanism 7 and the chain 6 is the prior art and will not be repeated here.

[0030] The linkage mechanism includes a tilting portion 13 arranged at the left end of the cover plate 12, a convex cavity 14 opened on the Z-shaped frame 1 and connected to the Z-shaped receiving groove 2 at the lower end, a linkage plate 15 with an upper end vertically arranged on the Z-shaped frame 1 and located in the convex cavity 14 and a lower end located in the Z-shaped receiving groove 2, and used for gradually pushing the tilting portion 13 to drive the cover plate 12 to flip right before the chain 6 drives the bucket body 9 to move and pass through the feed port 3 to open the bucket mouth 10 so that the aggregate can enter the bucket body 9 from the feed port 3, and a flat spiral spring 16 fixedly arranged between the two connecting plates 11 and the right end of the cover plate 12, and used for contracting to generate elastic potential energy when the linkage plate 15 gradually pushes the tilting portion 13 to drive the cover plate 12 to flip right, and releasing the elastic potential energy after the chain 6 drives the bucket body 9 to move and pass through the feed port 3 to drive the driving cover plate 12 to flip left to close the bucket mouth 10. The convex cavity 14 is arranged near the feed port 3 , and can provide space for the flipped cover plate 12 to move when the tilting portion 13 contacts the linkage plate 15 , thereby preventing the cover plate 12 from contacting the inner wall of the Z-shaped frame 1 .

[0031] The tilted portion 13 is an inclined portion or an arc-shaped portion. The inclined portion is an inclined plate that gradually descends from left to right, and the arc-shaped portion is an arc-shaped plate that bulges to the left.

[0032] The bucket body 9 is provided with a pushing device for pushing the aggregate in the bucket body 9 to pour out toward the discharge port 4 when the bucket body 9 follows the chain 6 to move to above the discharge port 4 and flips to the left.

[0033] The pushing device includes a load-bearing plate 17 which can be lifted and arranged in the bucket body 9 and is used to carry the aggregate when the aggregate enters the bucket body 9 and can move closer to or away from the opening end in the bucket body 9 when driven by an external force, and a compression spring 18 which is fixedly arranged between the lower end of the load-bearing plate 17 and the bucket body 9 and is used to contract and generate elastic potential energy when the load-bearing plate 17 carries the aggregate so that the load-bearing plate 17 moves away from the opening end in the bucket body 9, and release the elastic potential energy when the bucket body 9 is flipped to the left so that the cover plate 12 is pushed by the aggregate to open the bucket mouth 10, so as to drive the load-bearing plate 17 to move closer to the opening end in the bucket body 9, thereby pushing the aggregate in the bucket body 9 to pour out to the discharge port 4.

[0034] The cover plate 12 is arranged to be inclined from left to right.

[0035] There are two compression springs 18 , and the two compression springs 18 are symmetrically arranged between the lower end of the bearing plate 17 and the bucket body 9 .

[0036] The limit block 8 is an arc-shaped limit block.

[0037] The working principle of the utility model is as follows: when it is necessary to transport the aggregate at a lower place to a higher place, one of the transmission wheels 5 is driven to rotate through the transmission mechanism 7, and the transmission wheel 5 drives the other transmission wheels 5 to rotate synchronously through the chain 6, and the chain 6 drives the hopper to move, and when the chain 6 drives the hopper body 9 to move and passes in front of the feed port 3 and approaches the feed port 3, the linkage plate 15 gradually pushes the tilting portion 13 to drive the cover plate 12 to flip to the right as the hopper body 9 moves, and at this time, the plane scroll spring 16 contracts to generate elastic potential energy, thereby opening the hopper mouth 10, so that the opened hopper mouth 10 is located at the feed port 3, so that aggregate can enter the bucket body 9 from the feeding port 3, and the worker can put the aggregate into the bucket body 9 for loading. After the cover plate 12 is out of contact with the linkage plate 15, the plane scroll spring 16 releases elastic potential energy to drive the cover plate 12 to flip left, so as to close the bucket mouth 10, and the cover plate 12 prevents the aggregate from falling out of the bucket body 9 due to shaking. When the bucket body 9 moves to the top of the discharge port 4 following the chain 6, with the movement of the chain 6 and the position of the limit block 8, the bucket body 9 flips left around the chain 6. When the bucket body 9 flips left, the aggregate in the bucket body 9 is affected by gravity to the bucket. The bucket body 9 moves in the direction of the opening 10, thereby pushing the cover plate 12 to flip rightward to open the bucket opening 10, so that the aggregate in the bucket body 9 can be poured out from the discharge port 4. After being poured out, the bucket body 9 continues to move with the chain 6, thereby repeating this movement back and forth to realize the transportation of the aggregate at a low place to a high place. The setting of the cover plate 12 can close the position of the opening when carrying the aggregate, so that part of the aggregate transported to a high place will not be shaken and fall out of the hopper, and it is not easy for the aggregate to hit the ground and cause injuries. When placing the aggregate in the bucket body 9 for carrying and transportation, the load-bearing plate 17 carries the aggregate and moves it to the high place. The end of the bucket mouth 10 is away from each other, thereby squeezing the compression spring 18. When the bucket body 9 is flipped to the left so that the cover plate 12 is pushed by the aggregate to open the bucket mouth 10, the aggregate slides out from the bucket body 9 toward the end of the bucket mouth 10 toward the discharge port 4. As the amount of aggregate decreases, the compression spring 18 releases its elastic potential energy, thereby driving the bearing plate 17 to push the aggregate in the bucket body 9 toward the discharge port 4. By pushing the aggregate, the force of pouring the aggregate toward the discharge port 4 is increased, thereby reducing the phenomenon that the last aggregate cannot push the cover plate 12 to flip right and open the bucket mouth 10, and reducing the phenomenon that the aggregate cannot be completely poured out of the bucket body 9.

[0038] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. Any component on the market that can achieve the above functions of the utility model can be selected and applied as an aggregate elevator for asphalt production. Therefore, the model and other parameters of the component are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of various components.

[0039] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. An aggregate elevator for asphalt production, comprising a Z-shaped frame, a Z-shaped receiving groove provided on the Z-shaped frame, a feed port provided on the right side of the lower end of the Z-shaped frame, a discharge port provided on the left side of the upper end of the Z-shaped frame, four transmission wheels arranged on the Z-shaped frame and located in the Z-shaped receiving groove, a chain arranged between the four transmission wheels and located in the Z-shaped receiving groove, a transmission mechanism arranged between one of the transmission wheels and the Z-shaped frame and used to drive the transmission wheel to rotate so as to drive the chain to move, a plurality of hoppers hingedly provided on the chain and used to accommodate aggregates and can follow the chain to move above the discharge port when the chain moves, and a stop block provided on the Z-shaped frame and located above the discharge port and used to cause the hopper to flip to the left when the hopper follows the chain to move above the discharge port so that the aggregate in the hopper can be poured out from the discharge port, characterized in that: The hopper includes a hopper body hingedly arranged on the chain for accommodating aggregates and being able to follow the chain to move above the discharge port when the chain moves, a hopper opening opened on the upper end surface of the hopper body, two connecting plates arranged on the right side of the upper end of the hopper body and symmetrically arranged front and back, and a hopper body with a right end rotatably arranged between the two connecting plates for closing the hopper opening when the hopper body carries aggregates and flipping to the left before the hopper body follows the chain to move above the discharge port to prevent the aggregates from falling out of the hopper body due to shaking and falling into the hopper. When the bucket is flipped to the left to pour out the aggregate, the cover plate is pushed by the aggregate to flip to the right to open the bucket mouth so that the aggregate can be poured out from the discharge port. A linkage mechanism is provided between the cover plate and the Z-shaped frame and located on the right side of the feed port. The linkage mechanism is used to push the cover plate to flip to the right to open the bucket mouth before the chain drives the bucket body to move and pass through the feed port, so as to allow the aggregate to enter the bucket body from the feed port, and to drive the cover plate to flip to the left to close the bucket mouth after the chain drives the bucket body to move and pass through the feed port, so as to prevent the aggregate from falling out of the bucket body due to shaking.

2. An aggregate elevator for asphalt production according to claim 1, characterized in that: The linkage mechanism includes a tilting portion arranged at the left end of the cover plate, a convex cavity opened on the Z-shaped frame and connected to the Z-shaped receiving groove at the lower end, a linkage plate with an upper end vertically arranged on the Z-shaped frame and located in the convex cavity and a lower end located in the Z-shaped receiving groove, and used for gradually pushing the tilting portion to drive the cover plate to flip right before the chain drives the bucket body to move and pass through the feed port to open the bucket mouth so that aggregate can enter the bucket body from the feed port, and a plane scroll spring fixedly arranged between the two connecting plates and the right end of the cover plate, and used for contracting to generate elastic potential energy when the linkage plate gradually pushes the tilting portion to drive the cover plate to flip right, and releasing the elastic potential energy after the chain drives the bucket body to move and pass through the feed port to drive the driving cover plate to flip left to close the bucket mouth.

3. An aggregate elevator for asphalt production according to claim 2, characterized in that: The raised portion is an inclined portion or an arc-shaped portion.

4. The aggregate elevator for asphalt production according to claim 1, characterized in that: The bucket body is provided with a pushing device for pushing the aggregate in the bucket body to pour out toward the discharge port when the bucket body follows the chain to move to above the discharge port and flips leftward.

5. An aggregate elevator for asphalt production according to claim 4, characterized in that: The pushing device includes a load-bearing plate which can be lifted and arranged in the bucket body, and is used to carry the aggregate when the aggregate enters the bucket body, and can move closer to or farther away from the end of the bucket body that opens when driven by an external force; and a compression spring which is fixedly arranged between the lower end of the load-bearing plate and the bucket body, and is used to contract and generate elastic potential energy when the load-bearing plate carries the aggregate so that the load-bearing plate moves away from the end of the bucket body that opens, and release the elastic potential energy when the bucket body flips to the left so that the cover plate is pushed by the aggregate to open the bucket mouth, so as to drive the load-bearing plate to move closer to the end of the bucket body that opens, thereby pushing the aggregate in the bucket body to pour out toward the discharge port.

6. The aggregate elevator for asphalt production according to claim 1, characterized in that: The cover plate is arranged tilted from left to right.

7. An aggregate elevator for asphalt production according to claim 5, characterized in that: The number of the compression springs is two, and the two compression springs are symmetrically arranged between the lower end of the bearing plate and the bucket body.

8. The aggregate elevator for asphalt production according to claim 1, characterized in that: The limit block is an arc-shaped limit block.

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