A chain scraper conveyor

Abstract

The present invention relates to the technical field of conveying equipment, and specifically to a chain-type scraper conveyor, which includes a frame, a chain, a scraper mechanism, a conveyor belt, and a synchronization mechanism. The present invention makes the scraper plate always perpendicular to the chain by cooperating with the sliders and the slide grooves at both ends of the scraper plate, thereby solving the problem of wear between the scraper plate and the outer shell caused by the deflection of the scraper plate due to the force of the chain in the scraper conveyor in the prior art; in addition, by changing the relative movement between the support platform and the scraper plate into the synchronous movement of the two, friction and wear between the scraper plate and the support platform are avoided. By setting a synchronization mechanism, the conveyor can adjust the relative movement relationship between the scraper plate and the conveyor belt according to different working conditions. When the material is heavier, the scraper plate moves relative to the conveyor belt to push the material on the conveyor belt; when the material is lighter, the two move synchronously, reducing the wear between the conveyor belt and the scraper plate and the bending wear of the conveyor belt, further extending the service life.

Description

Technical Field

[0001] The invention relates to the technical field of conveying equipment, and in particular to a chain scraper conveyor. Background Art

[0002] Chain scraper conveyor is a mechanical device that uses a chain to pull a scraper plate (or chain plate) to circulate in a closed rectangular cross-section shell, thereby pushing the material to be continuously transported in a horizontal or inclined direction. Its working principle is simple and efficient: the motor drives the sprocket to rotate, thereby driving the chain and the scraper plate (chain plate) fixed on the chain to move. During the process of moving forward, the scraper plate is close to the bottom of the trough or contacts the guide plate in the trough, pushing the material forward to form a continuous material flow.

[0003] In the process of using the existing chain scraper conveyor, there is a problem that the chain is bent by force, causing the scraper plate to be skewed, which in turn causes wear between the scraper plate and the bearing platform, reducing the life of the conveyor. For this reason, in the relevant technology, such as the Chinese patent document with the authorization announcement number CN220033056U, a chain scraper conveyor is disclosed, which solves the above problem by cooperating with the slider and the slide rail to keep the scraper plate in a horizontal state. However, in combination with the above patent and the prior art, it is found that during the use of the chain scraper conveyor, the material is placed above the bearing surface, and the scraper slides on the bearing surface to push the material. In order to prevent the scraper plate from leaking when pushing the material, the scraper plate is abutted against the bearing platform, and pressure is created between the two. The greater the pressure between the two, the less likely it is to leak, and the higher the material conveying efficiency, but the greater the corresponding friction, the greater the wear on the scraper plate and the bearing platform, shortening the service life of the conveyor. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention proposes a chain scraper conveyor, which solves the problem of wear between the scraper plate and the bearing platform in the prior art and has a longer service life.

[0005] A chain scraper conveyor of the present invention adopts the following technical solution, including:

[0006] The frame is provided with a conveying trough, and slide grooves are provided on both sides of the conveying direction of the conveying trough; a bearing platform is fixedly connected to the middle of the conveying trough;

[0007] The chain is installed on the frame, the chain is in a runway shape and is wound around the bearing platform. The chain is connected to a driving mechanism, and the driving mechanism is used to drive the chain to run;

[0008] A plurality of scraper mechanisms are provided, and the plurality of scraper mechanisms are evenly distributed on the side of the chain away from the bearing platform. The scraper mechanism comprises a scraper plate and two sliders. The scraper plate extends along the width direction of the bearing platform, and the scraper plate is perpendicular to the chain. One end of the scraper plate close to the chain is fixedly connected to the chain, and both sides of the other end are connected with sliders, and the two sliders are slidably installed in the two slide grooves of the conveying trough respectively.

[0009] The conveyor belt is sleeved on the end of the bearing platform and the scraper plate away from the chain;

[0010] There are multiple synchronization mechanisms, and each scraper plate is equipped with a synchronization mechanism at one end away from the chain. The synchronization mechanism is used to make the scraper plate and the conveyor belt move synchronously when the gravity of all materials on the conveyor belt is less than a preset value, and to make the scraper plate move relative to the conveyor belt when the gravity of all materials on the conveyor belt is greater than a preset value.

[0011] Optionally, a plurality of grooves are provided on the upper and lower surfaces of the carrying platform, and the plurality of grooves are evenly distributed along the extension direction of the carrying platform;

[0012] The synchronization mechanism includes a main shaft, a main wheel, two secondary shafts, two secondary wheels, two first hinge assemblies, two second hinge assemblies and two leveling assemblies; a main shaft is connected between two sliders connected to a scraper plate, the main shaft extends along the width direction of the bearing platform, the main wheel is rotatably mounted on the main shaft, two secondary shafts are symmetrically distributed below the two sides of the main shaft, the axis of the secondary shaft is parallel to the axis of the main shaft, and the two secondary wheels are rotatably mounted on the two secondary shafts respectively; the conveyor belt passes between one secondary wheel and the main wheel, is wound around the main wheel, and then passes between the other secondary wheel and the main wheel;

[0013] The end of the main shaft is connected to the two secondary shafts respectively through a first hinge assembly and a second hinge assembly, and the first hinge assembly and the second hinge assembly each include a first sleeve, a second sleeve and a connecting rod; the first sleeve is rotatably installed on the main shaft; the second sleeve is rotatably installed on the secondary shaft, and the first sleeve and the second sleeve are connected through a connecting rod; a limit spring is connected between the two second sleeves, and the limit spring makes the two second sleeves tend to approach each other; the leveling assembly is used to keep the limit spring level when it is stretched or contracted.

[0014] Optionally, a fan-shaped groove is provided on the side of the slider facing the main shaft, and the arc surface of the fan-shaped groove is arched downward; the end of the secondary shaft extends into the fan-shaped groove, and the secondary shaft contacts the arc surface of the fan-shaped groove, and the arc surface of the fan-shaped groove includes two symmetrically arranged first slide rails and two second slide rails, and the two first slide rails are symmetrical about the vertical plane where the main shaft axis is located; the second slide rail is located on the side of the first slide rail away from the main shaft axis, and the first slide rail and the second slide rail have a smooth transition; the radius of the first slide rail is smaller than the outer diameter of the secondary wheel, and the radius of the second slide rail is larger than the outer diameter of the secondary wheel.

[0015] Optionally, the leveling assembly includes a leveling groove, which is opened in the second sleeve and extends axially along the second sleeve. One end of the connecting rod away from the first sleeve passes through the leveling groove, and the connecting rod can be axially rotatably connected to the second sleeve around the second sleeve.

[0016] Optionally, the leveling assembly also includes a leveling rod, which is a telescopic rod that extends horizontally. Both ends of the leveling rod are respectively fixedly connected to two second sleeves located at the same end of the scraper plate; a limit spring sleeve is arranged on the leveling rod.

[0017] Optionally, two limit grooves are provided on the upper and lower surfaces of the supporting platform, and the limit grooves extend along the length direction of the supporting platform; two chains are provided, and the two chains are arranged at intervals, respectively located on both sides of the scraper plate along the width direction of the supporting platform, and respectively installed in the two limit grooves.

[0018] Optionally, the driving mechanism includes a driving motor, two transmission shafts and four sprockets; the two transmission shafts are respectively arranged at both ends of the extension direction of the conveying trough and can rotate relative to the frame, and one of the transmission shafts is connected to the output end of the driving motor; the four sprockets are respectively installed at both ends of the two transmission shafts, and rotate synchronously with the corresponding transmission shafts, and the chain is wound around two sprockets located on the same side in the width direction of the conveying trough.

[0019] Optionally, a plurality of pulleys are rotatably mounted on both sides of the scraper plate, and the plurality of pulleys located on the same side of the scraper plate are evenly distributed along the width direction of the conveyor belt.

[0020] Optionally, one end of the scraper plate facing the chain is detachably connected to a connecting platform, and the connecting platform is fixedly connected to the chain.

[0021] Optionally, the chain is connected with a tensioning mechanism, and the tensioning mechanism is used to put the chain in a tensioned state.

[0022] The beneficial effects of the present invention are as follows: during the conveying process of the chain scraper conveyor of the present invention, the scraper plate is always perpendicular to the chain through the cooperation of the sliders and the slide grooves at both ends of the scraper plate, thereby solving the problem of wear between the scraper plate and the supporting platform caused by the deflection of the scraper plate due to the force of the chain in the scraper conveyor in the prior art; in addition, a conveyor belt is mounted on the scraper plate and the supporting platform, and the material is poured onto the conveyor belt. By changing the relative motion between the supporting platform and the scraper plate into a synchronous motion of the two, friction and wear between the scraper plate and the supporting platform are avoided, thereby extending the service life of the conveyor.

[0023] Furthermore, by setting up a synchronization mechanism, the conveyor can adjust the relative movement relationship between the scraper plate and the conveyor belt according to different working conditions during the conveying process. When the material is heavy, the scraper plate moves relative to the conveyor belt, thereby pushing the material on the conveyor belt; when the material is light, the two move synchronously, reducing the wear between the conveyor belt and the scraper plate and the bending wear of the conveyor belt, thereby further extending the service life of the conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of a chain scraper conveyor of the present invention;

[0026] Figure 2 for Figure 1 The enlarged schematic diagram of other structures after removing the conveyor belt at the X in the middle;

[0027] Figure 3 It is a side view of a chain scraper conveyor of the present invention;

[0028] Figure 4 for Figure 3 Middle AA section cutaway view;

[0029] Figure 5 When the weight of the material on the conveyor belt is greater than the preset value Figure 4 A magnified view of the structure at Y in the middle;

[0030] Figure 6 When the weight of the material on the conveyor belt is less than the preset value Figure 4 A magnified view of the structure at Y in the middle;

[0031] Figure 7 It is an exploded schematic diagram of a scraping mechanism in a chain scraper conveyor of the present invention;

[0032] Figure 8 for Figure 7 Enlarged view of the middle Z.

[0033] In the figure: 100, frame; 110, conveying trough; 111, slide; 120, bearing platform; 121, groove; 122, limit groove; 200, chain; 210, driving mechanism; 211, driving motor; 212, transmission shaft; 213, sprocket; 300, scraper mechanism; 310, scraper plate; 311, connecting platform; 320, slider; 321, fan-shaped groove; 322, first slide rail; 323, second slide rail; 330, pulley; 400, conveyor belt; 500, synchronization mechanism; 510, main shaft; 520, main wheel; 530, secondary shaft; 540, secondary wheel; 551, first sleeve; 552, second sleeve; 553, connecting rod; 554, limit spring; 560, leveling assembly; 561, leveling groove; 562, leveling rod. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] like Figures 1 to 8 As shown, a chain scraper conveyor provided by an embodiment of the present invention includes a frame 100 , a chain 200 , a scraper mechanism 300 , a conveyor belt 400 and a synchronization mechanism 500 .

[0036] The frame 100 is provided with a conveying trough 110 , and slide grooves 111 are provided on both sides of the conveying direction of the conveying trough 110 ; a carrying platform 120 is fixedly connected to the middle of the conveying trough 110 .

[0037] The chain 200 is in the shape of a runway, mounted on the frame 100 and wound around the support platform 120. The chain 200 is connected to a driving mechanism 210, which is used to drive the chain 200 to run; the chain 200 is connected to a tensioning mechanism, which is used to keep the chain 200 in a tensioned state.

[0038] A plurality of scraper mechanisms 300 are provided, and the plurality of scraper mechanisms 300 are evenly distributed on the side of the chain 200 away from the supporting platform 120. The scraper mechanism 300 includes a scraper plate 310 and two sliders 320. The scraper plate 310 extends along the width direction of the supporting platform 120, and the scraper plate 310 is perpendicular to the chain 200. One end of the scraper plate 310 close to the chain 200 is detachably connected to a connecting platform 311, and the connecting platform 311 is fixedly connected to the chain 200. Both sides of the other end of the scraper plate 310 are connected to sliders 320. The two sliders 320 are respectively slidably installed in the two slide grooves 111 of the conveying trough 110. The two ends of the slide groove 111 are flared structures to facilitate the slider 320 to enter the slide groove 111.

[0039] The conveyor belt 400 is sleeved on the end of the supporting platform 120 and the scraper plate 310 away from the chain 200 .

[0040] There are multiple synchronization mechanisms 500, and each scraper plate 310 is equipped with a synchronization mechanism 500 at one end away from the chain 200. The synchronization mechanism 500 is used to make the scraper plate 310 and the conveyor belt 400 move synchronously when the gravity of all materials on the conveyor belt 400 is less than a preset value, and to make the scraper plate 310 move relative to the conveyor belt 400 when the gravity of all materials on the conveyor belt 400 is greater than a preset value.

[0041] During use, the material is poured into the conveying trough 110 from top to bottom, and the driving mechanism 210 is started. The driving mechanism 210 drives the chain 200 to run. During the movement of the chain 200, the scraper plate 310 is driven to move synchronously. When the scraper plate 310 moves, the slider 320 slides in the slide trough 111. In the initial state and when the material in the conveying trough 110 is lighter and the material gravity is less than the preset value, during the movement of the scraper plate 310, the synchronization mechanism 500 causes the scraper plate 310 to drive the conveyor belt 400 to move synchronously, thereby driving the material between the two adjacent scraper plates 310 to move synchronously to complete the conveying work.

[0042] When there is a lot of material on the conveyor belt 400 and the gravity is greater than a preset value, the drive mechanism 210 drives the chain 200 to run, and the scraper plate 310 moves synchronously with the chain 200. The synchronization mechanism 500 causes the scraper plate 310 to move relative to the conveyor belt 400. In the process of the scraper plate 310 moving relative to the conveyor belt 400, the relative positions of the conveyor belt 400 and the scraper plate 310 are constantly changing. The conveyor belt 400 originally located between the two scraper plates 310 is wound around the scraper plate 310, and the conveyor belt 400 originally wound above the scraper plate 310 is between the two scraper plates 310. At the same time, the scraper plate 310 continuously pushes the material in front of its moving direction forward, thereby completing the work of conveying the material.

[0043] The present invention ensures that the scraper plate 310 is always perpendicular to the chain 200 by cooperating the sliders 320 and the slide grooves 111 at both ends of the scraper plate 310, thereby solving the problem of wear between the scraper plate 310 and the supporting platform 120 caused by the force applied to the chain 200 in the scraper conveyor in the prior art; in addition, a conveyor belt 400 is mounted on the scraper plate 310 and the supporting platform 120, and the material is poured onto the conveyor belt 400. By changing the relative motion between the supporting platform 120 and the scraper plate 310 into a synchronous motion of the two, friction and wear between the scraper plate 310 and the supporting platform 120 are avoided, thereby extending the service life of the conveyor.

[0044] By setting up the synchronization mechanism 500, the conveyor can adjust the relative movement relationship between the scraper plate 310 and the conveyor belt 400 according to different working conditions during the conveying process. When the material is heavy, the scraper plate 310 moves relative to the conveyor belt 400, thereby pushing the material on the conveyor belt 400; when the material is light, the two move synchronously, reducing the wear between the conveyor belt 400 and the scraper plate 310 and the bending wear of the conveyor belt 400, thereby further extending the service life of the conveyor.

[0045] In a further embodiment, Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, a plurality of grooves 121 are disposed on the upper and lower surfaces of the carrying platform 120 . The plurality of grooves 121 are evenly distributed along the extension direction of the carrying platform 120 , and the grooves 121 are in an inclined state.

[0046] The synchronization mechanism 500 includes a main shaft 510, a main wheel 520, two secondary shafts 530, two secondary wheels 540, two first hinge assemblies, two second hinge assemblies and two leveling assemblies 560; the main shaft 510 is connected between the two sliders 320 connected to a scraper plate 310, the main shaft 510 extends along the width direction of the support platform 120, the main wheel 520 is rotatably installed on the main shaft 510, the two secondary shafts 530 are symmetrically distributed below the two sides of the main shaft 510, the axis of the secondary shaft 530 is parallel to the axis of the main shaft 510, and the two secondary wheels 540 are rotatably installed on the two secondary shafts 530 respectively; after the conveyor belt 400 passes between one secondary wheel 540 and the main wheel 520, it is wrapped around the main wheel 520, and then passes between the other secondary wheel 540 and the main wheel 520.

[0047] A first hinge assembly and a second hinge assembly are installed at both ends of the main shaft 510, and the ends of the main shaft 510 are connected to the two secondary shafts 530 through the first hinge assembly and the second hinge assembly respectively; the first hinge assembly and the second hinge assembly each include a first sleeve 551, a second sleeve 552 and a connecting rod 553; the first sleeve 551 is rotatably installed on the main shaft 510; the second sleeve 552 is rotatably installed on the secondary shaft 530, and the first sleeve 551 and the second sleeve 552 are connected through a connecting rod 553; a limiting spring 554 is connected between the two second sleeves 552, and the limiting spring 554 makes the two second sleeves 552 tend to approach each other; the leveling assembly 560 is used to keep the limiting spring 554 level when it is stretched or contracted.

[0048] In the initial state and when the material on the conveyor belt 400 is light, the conveyor belt 400 between two adjacent scraper plates 310 is laid flat on the top of the carrier 120, and the limit spring 554 makes the second sleeves 552 approach each other, so that the two auxiliary wheels 540 are brought close to each other through the connecting rod 553, the first sleeve 551 and the auxiliary shaft 530. The two auxiliary wheels 540 press the conveyor belt 400 to the scraper plate 310 from both sides of the scraper plate 310 to keep it in a tensioned state. Figure 6 At this time, the sum of the contact area between the conveyor belt 400 and the main wheel 520 and the contact area between the conveyor belt 400 and the secondary wheel 540 is large, and the corresponding friction force is relatively large. In the process of the chain 200 driving the scraper plate 310 to move, the conveyor belt 400 moves synchronously with the scraper plate 310, thereby driving the materials between the two adjacent scraper plates 310 to move synchronously to complete the conveying work.

[0049] When there are more materials on the conveyor belt 400 and the gravity is greater than the preset value, the conveyor belt 400 is subjected to greater pressure, and the materials between two adjacent scraper plates 310 press the conveyor belt 400 into the groove 121 on the carrier 120, and the originally steep conveyor belt 400 becomes slower. Figure 5 , since part of the conveyor belt 400 is pressed into the groove 121 by the material, the conveyor belt 400 cannot move relative to the supporting platform 120; but at this time the limit spring 554 is stretched, the distance between the two secondary wheels 540 increases, the contact area between the conveyor belt 400 and the main wheel 520 and the contact area between the conveyor belt 400 and the secondary wheel 540 decrease, and the corresponding friction force is small. In the process of the chain 200 driving the scraper plate 310 to move, the main wheel 520 and the secondary wheel 540 rotate around their own axes respectively, and the scraper plate 310 moves relative to the conveyor belt 400, so that the conveyor belt 400 originally laid on the supporting platform 120 is wound around the main shaft 510, and the conveyor belt 400 originally wound around the main shaft 510 is laid on the supporting platform 120, and the scraper plate 310 continuously pushes the material located in front of its moving direction forward, thereby completing the work of conveying materials.

[0050] In a further embodiment, Figure 5 , Figure 6 , Figure 7As shown, a fan-shaped groove 321 is provided on the side of the slider 320 facing the main shaft 510, and the arc surface of the fan-shaped groove 321 is arched downward; the end of the secondary shaft 530 extends into the fan-shaped groove 321, and the secondary shaft 530 contacts the arc surface of the fan-shaped groove 321, and the arc surface of the fan-shaped groove 321 includes two symmetrically arranged first slide rails 322 and two second slide rails 323, and the two first slide rails 322 are symmetrical about the vertical plane where the axis of the main shaft 510 is located; the second slide rail 323 is located on the side of the first slide rail 322 away from the axis of the main shaft 510, and the first slide rail 322 and the second slide rail 323 have a smooth transition; the radius of the first slide rail 322 is smaller than the outer diameter of the secondary wheel 540, and the radius of the second slide rail 323 is larger than the outer diameter of the secondary wheel 540.

[0051] In the initial state and when the material on the conveyor belt 400 is light, the limit spring 554 makes the second sleeves 552 approach each other, so that the two secondary wheels 540 are respectively located in the two first slide rails 322 on both sides of the main shaft 510 through the connecting rod 553, the first sleeve 551 and the secondary shaft 530. The two secondary wheels 540 press the conveyor belt 400 to the scraper plate 310 from both sides of the scraper plate 310 to keep it in a tensioned state; at this time, the contact between the conveyor belt 400 and the main wheel 520 and between the conveyor belt 400 and the secondary wheels 540 is The area is large, and the corresponding friction force is relatively large. Since the radius of the first slide rail 322 is smaller than the outer diameter of the secondary wheel 540, when the secondary wheel 540 is located in the first slide rail 322, the secondary wheel 540 cannot rotate relative to the secondary shaft 530, and there is static friction between the secondary wheel 540 and the conveyor belt 400, which further ensures that when the gravity of the material on the conveyor belt 400 is less than the preset value, the conveyor belt 400 and the scraper plate 310 move synchronously, thereby driving the material between the two adjacent scraper plates 310 to move synchronously to complete the conveying work.

[0052] When there are more materials on the conveyor belt 400 and the gravity is greater than the preset value, the conveyor belt 400 is subjected to greater pressure, and the materials between two adjacent scraper plates 310 press the conveyor belt 400 into the groove 121 on the carrier 120, and the originally steep conveyor belt 400 becomes slower. Figure 5, and the limit spring 554 is stretched, the two secondary wheels 540 are respectively located in the two second slide rails 323 on both sides of the main shaft 510, at this time, the contact area between the conveyor belt 400 and the main wheel 520 and the contact area between the conveyor belt 400 and the secondary wheel 540 are reduced, and the corresponding friction force is small, and because the radius of the second slide rail 323 is larger than the outer diameter of the secondary wheel 540, the secondary wheel 540 can rotate around its own axis in the second slide rail 323, and the secondary wheel 540 and the conveyor belt 400 complete a smaller sliding friction force by changing the static friction force, further ensuring that when the gravity of the material on the conveyor belt 400 is greater than the preset value, the conveyor belt 400 and the scraper plate 310 move relative to each other, so that the scraper plate 310 continuously pushes the material in front of its moving direction forward while moving relative to the conveyor belt 400, thereby completing the work of conveying materials.

[0053] In a further embodiment, the leveling assembly 560 includes a leveling slot 561 and a leveling rod 562. Figure 8 As shown, each second sleeve 552 is provided with a leveling groove 561, which extends along the axial direction of the second sleeve 552. The end of the connecting rod 553 away from the first sleeve 551 passes through the leveling groove 561, and the connecting rod 553 can be connected to the second sleeve 552 axially rotatably around the second sleeve 552. The leveling rod 562 is a telescopic rod, which extends horizontally, and the two ends of the leveling rod 562 are respectively fixedly connected to the two second sleeves 552 located at the same end of the scraper plate 310; the limit spring 554 is sleeved on the leveling rod 562 to ensure that the limit spring 554 remains horizontal when stretched or contracted, thereby making the two secondary wheels 540 symmetrical about the vertical plane where the axis of the main wheel 520 is located, and ensuring that the two secondary wheels 540 exert equal pressure on the conveyor belt 400.

[0054] In a further embodiment, Figure 2 As shown, two limit grooves 122 are provided on the upper and lower surfaces of the support platform 120, and the limit grooves 122 extend along the length direction of the support platform 120; two chains 200 are provided, and the two chains 200 are arranged at intervals, respectively located on both sides of the scraper plate 310 along the width direction of the support platform 120, and are respectively installed in the two limit grooves 122.

[0055] In a further embodiment, the driving mechanism 210 includes a driving motor 211, two transmission shafts 212 and four sprockets 213; the two transmission shafts 212 are respectively arranged at both ends of the extension direction of the conveying trough 110, and can rotate relative to the frame 100, and one of the transmission shafts 212 is connected to the output end of the driving motor 211; the four sprockets 213 are respectively installed at both ends of the two transmission shafts 212, and rotate synchronously with the corresponding transmission shafts 212, and the chain 200 is wound around the two sprockets 213 located on the same side in the width direction of the conveying trough 110.

[0056] When in use, the driving motor 211 is started, and the driving motor 211 drives a transmission shaft 212 to rotate. When the transmission shaft 212 rotates, the two sprockets 213 thereon are driven to rotate synchronously, thereby driving the two chains 200 to move in the two limiting grooves 122 respectively.

[0057] In a further embodiment, Figure 7 As shown, a plurality of pulleys 330 are rotatably mounted on both sides of the scraper plate 310 , and the plurality of pulleys 330 on the same side of the scraper plate 310 are evenly distributed along the width direction of the conveyor belt 400 .

[0058] During the conveying process, the driving mechanism 210 drives the chain 200 to run. When the chain 200 moves, it drives the scraper plate 310 to move synchronously. During the movement of the scraper plate 310, the pulley 330 slides on the surface of the support platform 120. Through the pulleys 330 on both sides of the scraper plate 310, the scraper plate 310 remains perpendicular to the chain 200 during the movement, and the movement is smoother.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A chain scraper conveyor, characterized in that: include: The frame is provided with a conveying trough, and slide grooves are provided on both sides of the conveying direction of the conveying trough; a bearing platform is fixedly connected to the middle of the conveying trough; The chain is installed on the frame, the chain is in a runway shape and is wound around the bearing platform. The chain is connected to a driving mechanism, and the driving mechanism is used to drive the chain to run; A plurality of scraper mechanisms are provided, and the plurality of scraper mechanisms are evenly distributed on the side of the chain away from the bearing platform. The scraper mechanism comprises a scraper plate and two sliders. The scraper plate extends along the width direction of the bearing platform, and the scraper plate is perpendicular to the chain. One end of the scraper plate close to the chain is fixedly connected to the chain, and both sides of the other end are connected with sliders, and the two sliders are slidably installed in the two slide grooves of the conveying trough respectively. The conveyor belt is sleeved on the end of the bearing platform and the scraper plate away from the chain; There are multiple synchronization mechanisms, and each scraper plate is equipped with a synchronization mechanism at one end away from the chain. The synchronization mechanism is used to make the scraper plate and the conveyor belt move synchronously when the gravity of all materials on the conveyor belt is less than a preset value, and to make the scraper plate move relative to the conveyor belt when the gravity of all materials on the conveyor belt is greater than a preset value.

2. A chain scraper conveyor according to claim 1, characterized in that: A plurality of grooves are arranged on the upper and lower surfaces of the bearing platform, and the plurality of grooves are evenly distributed along the extension direction of the bearing platform; The synchronization mechanism includes a main shaft, a main wheel, two secondary shafts, two secondary wheels, two first hinge assemblies, two second hinge assemblies and two leveling assemblies; a main shaft is connected between two sliders connected to a scraper plate, the main shaft extends along the width direction of the bearing platform, the main wheel is rotatably mounted on the main shaft, two secondary shafts are symmetrically distributed below the two sides of the main shaft, the axis of the secondary shaft is parallel to the axis of the main shaft, and the two secondary wheels are rotatably mounted on the two secondary shafts respectively; the conveyor belt passes between one secondary wheel and the main wheel, is wound around the main wheel, and then passes between the other secondary wheel and the main wheel; The end of the main shaft is connected to the two secondary shafts respectively through a first hinge assembly and a second hinge assembly, and the first hinge assembly and the second hinge assembly each include a first sleeve, a second sleeve and a connecting rod; the first sleeve is rotatably installed on the main shaft; the second sleeve is rotatably installed on the secondary shaft, and the first sleeve and the second sleeve are connected through a connecting rod; a limit spring is connected between the two second sleeves, and the limit spring makes the two second sleeves tend to approach each other; the leveling assembly is used to keep the limit spring level when it is stretched or contracted.

3. A chain scraper conveyor according to claim 2, characterized in that: A fan-shaped groove is provided on one side of the slider facing the main shaft, and the arc surface of the fan-shaped groove is arched downward; the end of the secondary shaft extends into the fan-shaped groove, and the secondary shaft contacts the arc surface of the fan-shaped groove, and the arc surface of the fan-shaped groove includes two symmetrically arranged first slide rails and two second slide rails, and the two first slide rails are symmetrical about the vertical plane where the main shaft axis is located; The second slide rail is located on the side of the first slide rail away from the main shaft axis, and the first slide rail and the second slide rail have a smooth transition; the radius of the first slide rail is smaller than the outer diameter of the secondary wheel, and the radius of the second slide rail is larger than the outer diameter of the secondary wheel.

4. A chain scraper conveyor according to claim 2, characterized in that: The leveling assembly includes a leveling groove, which is opened in the second sleeve and extends axially along the second sleeve. One end of the connecting rod away from the first sleeve passes through the leveling groove, and the connecting rod is rotatably connected to the second sleeve around the axial direction of the second sleeve.

5. A chain scraper conveyor according to claim 4, characterized in that: The leveling assembly also includes a leveling rod, which is a telescopic rod extending horizontally. The two ends of the leveling rod are respectively fixedly connected to two second shaft sleeves located at the same end of the scraper plate; and a limit spring sleeve is arranged on the leveling rod.

6. A chain scraper conveyor according to claim 1, characterized in that: The upper and lower surfaces of the bearing platform are provided with two limit grooves, which extend along the length direction of the bearing platform; two chains are provided, which are arranged at intervals and are respectively located on both sides of the scraper plate along the width direction of the bearing platform, and are respectively installed in the two limit grooves.

7. A chain scraper conveyor according to claim 6, characterized in that: The driving mechanism includes a driving motor, two transmission shafts and four sprockets; the two transmission shafts are respectively arranged at the two ends of the extension direction of the conveying trough and can rotate relative to the frame, and one of the transmission shafts is connected to the output end of the driving motor; the four sprockets are respectively installed at the two ends of the two transmission shafts, and rotate synchronously with the corresponding transmission shafts, and the chain is wound around the two sprockets located on the same side in the width direction of the conveying trough.

8. The chain scraper conveyor according to claim 1, characterized in that: Multiple pulleys are rotatably mounted on both sides of the scraper plate, and the multiple pulleys located on the same side of the scraper plate are evenly distributed along the width direction of the conveyor belt.

9. The chain scraper conveyor according to claim 1, characterized in that: One end of the scraper plate facing the chain is detachably connected with a connecting platform, and the connecting platform is fixedly connected to the chain.

10. The chain scraper conveyor according to claim 1, characterized in that: The chain is connected with a tensioning mechanism, and the tensioning mechanism is used to put the chain in a tensioned state.

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