Electric heating type high-efficiency scraper conveyor

Abstract

This invention discloses an electrically heated high-efficiency scraper conveyor, belonging to the field of intelligent transportation technology. It includes a conveyor frame, with drive rollers rotatably connected to both sides of the inner cavity of the conveyor frame. At least one end of one drive roller is connected to a drive unit, which is mounted outside the conveyor frame. Sprockets are provided on both sides of the drive roller, and a scraper chain is driven between the sprockets on the same side. Buffer components are connected to the outer periphery of the scraper chain. In this invention, when the movable sleeve slides, it can slide within the fixed plate via a guide rod. When the movable sleeve slides, it can compress an external second spring. The second spring can absorb the swaying and offset of the compression rod. The energy dissipation of the movement of the compression rods on both sides absorbs the vibration offset of the rotating block and the scraper body, further improving the transmission stability between the scraper chains. The scraper chain can be quickly disassembled and assembled with the buffer shell via a screw, facilitating replacement after damage.

Description

Technical Field

[0001] This invention belongs to the field of intelligent transportation technology, and in particular relates to an electrically heated high-efficiency scraper conveyor. Background Technology

[0002] A scraper conveyor is a conveyor that uses a scraper chain to transport bulk materials within a trough. It is a continuous conveying machine for powdery, granular, and small lump dry materials and can be arranged horizontally or at an incline. This equipment features a simple structure, stable and reliable operation, long conveying distance, good sealing performance, low wear, and low noise. It is widely used in industries such as metallurgy, power, chemical, mining, building materials, and grain processing.

[0003] Chinese invention patent CN103318604B discloses a scraper conveyor. This scraper conveyor includes a head, a tail, and a middle casing. Its features include: a motor mounted on the head, connected to a transmission chain; several guide rails connected to the transmission chain; scrapers mounted on the guide rails; several casing grooves on the middle casing, each with a feed inlet; a tensioning device for tightening the transmission chain installed at the tail; and a discharge outlet connected to the tail. This design offers advantages such as high material conveying temperature, good sealing performance, wear resistance, long service life, stable and reliable operation, and convenient component replacement.

[0004] However, when the drive chain of the scraper conveyor is rigidly connected to the scraper, the connection between the scraper and the chain is prone to local stress concentration due to rigid contact and scraping, which can lead to breakage and wear at the edge, affecting the continuous service life. There is room for improvement. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that the connection between the scraper and the chain is prone to local stress concentration due to hard contact and scraping, which leads to breakage and wear at the edge. Therefore, an electrically heated high-efficiency scraper conveyor is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electrically heated high-efficiency scraper conveyor includes a conveyor frame. Drive rollers are rotatably connected to both sides of the inner cavity of the conveyor frame. At least one drive roller is driven to one end by a drive unit, which is installed outside the conveyor frame. Sprockets are provided on both sides of the outer side of the drive rollers. A scraper chain is driven between the sprockets on the same side. Buffer components are connected to the outer periphery of the scraper chain. The buffer components include a buffer shell. A connecting component is rotatably connected inside the buffer shell. A scraper body is connected to one side of the connecting component.

[0008] The connecting assembly includes a connecting plate connected to one side of the scraper body, a rotating block connected to the top of the connecting plate, the rotating block being rotatably connected to the buffer shell, and a lubrication mechanism installed on the outside of the drive roller. The lubrication mechanism contacts the buffer assembly and sprocket at the corresponding positions, and lubricates the buffer assembly and sprocket to reduce friction.

[0009] As a further description of the above technical solution:

[0010] Both sides of the buffer shell are threadedly connected to the outer chain plate at the corresponding position of the scraper chain via screws. The inner cavity of the buffer shell is rotatably connected to the rotating block. Both sides of the inner cavity of the buffer shell have extrusion rollers, which abut against the rotating block to flexibly rotate and absorb energy.

[0011] As a further description of the above technical solution:

[0012] A telescopic rod is connected to one side of the extrusion roller, and a mounting plate is connected to the other end of the telescopic rod. The mounting plate is connected to the inside of the buffer shell. A first spring is sleeved on the outside of the telescopic rod, and the two ends of the first spring are respectively connected to the corresponding positions on one side of the extrusion roller and the mounting plate.

[0013] As a further description of the above technical solution:

[0014] The inner cavity of the buffer shell is provided with two slidable compression rods corresponding to the position of the rotating block. The compression rods abut against the outer wall of the rotating block to absorb energy. Both sides of the compression rods are slidably connected to the track groove connected to the inner cavity of the buffer shell. A movable sleeve is slidably connected in the track groove. A sliding block is connected to one side of the movable sleeve. Both ends of one side of the sliding block are connected to guide rods. An anti-detachment plate is connected between the two guide rods. Fixed plates are connected to both sides of the inner cavity of the track groove corresponding to the positions of the guide rods. Guide holes are opened at both ends of one side of the fixed plate. The guide rods are slidably connected in the guide holes. A second spring is sleeved on the outside of the guide rod. The two ends of the second spring are respectively connected to the fixed plate and the corresponding position on one side of the sliding block.

[0015] As a further description of the above technical solution:

[0016] The buffer assembly also includes a sealing pad connected to the bottom opening of the buffer shell. An elastic bladder is connected to the top of the sealing pad, and an elastic plate is connected to the other end of the elastic bladder. The elastic plate is connected to a corresponding position on one side of the inner cavity of the buffer shell, and the sealing pad seals the rotation opening of the rotating block.

[0017] As a further description of the above technical solution:

[0018] The connecting plate has a mounting hole on one side, and a limiting bolt passes through the mounting hole. The connecting plate is connected to the scraper chain drive through the limiting bolt. The inner cavity of the mounting hole is connected to a connecting groove seat, and the inner cavity of the connecting groove seat has an opening groove. An abutment sleeve is slidably connected in the opening groove. Sliding sleeves are connected to both sides of the abutment sleeve, and a sliding rod is slidably connected in the sliding sleeve. The two ends of the sliding rod are respectively located at corresponding positions on both sides of the inner cavity of the opening groove. A third spring is sleeved on the outside of the sliding rod, and the two ends of the third spring are respectively connected to the corresponding positions on the sliding sleeve and one side of the inner cavity of the opening groove. The scraper body is flexibly installed in the mounting hole through the limiting bolt.

[0019] As a further description of the above technical solution:

[0020] The bottom of the abutment sleeve is connected to a receiving pad, and the other side of the receiving pad is connected to a first position on one side of the inner cavity of the opening groove. The mounting hole is sealed by the sealing sleeve and the abutment sleeve.

[0021] As a further description of the above technical solution:

[0022] The top of the buffer shell is connected to a lubrication groove plate. The top of the lubrication groove plate and the top of the buffer shell are provided with through slots. The contact between the lubrication groove plate and the lubrication mechanism allows lubricating oil to soak into the buffer shell.

[0023] As a further description of the above technical solution:

[0024] The lubrication mechanism includes a lubrication shell, with multiple liquid storage bladders connected to the periphery of the inner cavity of the lubrication shell. Each liquid storage bladder is connected to a pipe via a one-way valve. The pipe extends to the lubrication shell and is connected to an immersion part. The immersion part is slidably connected to a groove opened on the outer side of the lubrication shell. A liquid filling valve port is connected to one side of the lubrication shell, through which lubricating oil is filled into the multiple liquid storage bladders.

[0025] As a further description of the above technical solution:

[0026] A bushing is connected to one side of the lubrication shell. The bushing is fitted onto the outside of the drive roller. Multiple coated balls are rotatably connected to one side of the bushing along the axis. The bushing has an oil cavity that extends to one side of the reservoir and is connected to the reservoir through a one-way valve.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. In this invention, through the designed connecting and buffer components, when the scraper chain is driven by the sprocket, the scraper chain can flexibly deflect by rotating within the buffer shell via the rotating block. This facilitates the absorption of scraping impact through the deflection of the scraper body, extending the scraper's service life. When the rotating block is squeezed, it can contact the two side squeezing rods. The squeezing rods, under pressure, can slide within the track groove via the movable sleeve. When the movable sleeve slides, it can slide within the fixed plate via the guide rod. When the movable sleeve slides, it can squeeze the external second spring. The second spring can absorb the swaying and deflection of the squeezing rods. The energy dissipation of the movement of the two side squeezing rods absorbs the vibration and deflection of the rotating block and the scraper body, further improving the transmission stability between the scraper chains. The scraper chain can be quickly disassembled and assembled with the buffer shell via the screw, facilitating replacement after damage.

[0029] 2. In this invention, when the sealing pad is closed in the opening, when the rotating block rotates, it can contact the sealing pad at the corresponding position on the bottom side. The sealing pad can be moved upward by force and squeeze the elastic bladder and elastic plate. The elastic plate can absorb the impact of the bottom sealing pad with its own elasticity, fully sealing the bottom opening of the buffer shell. By sealing the opening, dust is prevented from entering the gap of the rotating block, thus improving the overall service life.

[0030] 3. In this invention, the scraper body can slide within the mounting hole via a limiting bolt. When the scraper body slides, the limiting bolt drives the abutment sleeve to move within the connecting groove. The abutment sleeve can slide within the opening groove and slide outside the slide rod via two side sliding sleeves. The movement of the sliding sleeve can compress the external third spring. The third spring can absorb the shaking and offset using its own elasticity, improving the stability of the abutment sleeve's movement. When the abutment sleeve moves, it can always compress the receiving pad. The receiving pad can fully seal the gap in the mounting hole, preventing dust from entering the connecting plate. The flexible movement of the scraper body can improve the stability of the scraper's movement.

[0031] 4. In this invention, through the designed lubrication groove plate, when the scraper chain moves, the lubrication groove plate on the top of the buffer shell can contact the immersion part when the scraper chain is driven to the side of the drive roller by the chain head. The immersion part can immerse the oil in the top of the lubrication groove plate, and the oil can immerse into the lubrication shell through the groove holes of the lubrication groove plate. The rotational stability of the rotating block in the lubrication shell is maintained by the lubricating oil, reducing hard friction and wear, improving the service life. The coating can avoid the lubricating oil from being directly coated into the lubrication shell, which would cause the lubricating oil to contaminate the conveyed material. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an electrically heated high-efficiency scraper conveyor proposed in this invention;

[0033] Figure 2 This is a schematic diagram showing the disassembled structure of an electrically heated high-efficiency scraper conveyor proposed in this invention;

[0034] Figure 3 This is a schematic diagram of the buffer assembly structure of an electrically heated high-efficiency scraper conveyor proposed in this invention;

[0035] Figure 4 This is a schematic diagram of the disassembled structure of the buffer component of an electrically heated high-efficiency scraper conveyor proposed in this invention;

[0036] Figure 5 This is a schematic diagram of the assembly structure of the connecting components of an electrically heated high-efficiency scraper conveyor proposed in this invention;

[0037] Figure 6 This is a schematic diagram showing the partially disassembled structure of the buffer assembly of an electrically heated high-efficiency scraper conveyor proposed in this invention;

[0038] Figure 7 This is a schematic diagram of the track groove assembly structure of an electrically heated high-efficiency scraper conveyor proposed in this invention;

[0039] Figure 8 This is a schematic diagram of the disassembled structure of the connecting components of an electrically heated high-efficiency scraper conveyor proposed in this invention;

[0040] Figure 9 This is a bottom view of the buffer assembly of an electrically heated high-efficiency scraper conveyor proposed in this invention.

[0041] Figure 10 This invention proposes Figure 9 Enlarged structural diagram of part A in the middle;

[0042] Figure 11 This is a schematic diagram of the lubrication mechanism of an electrically heated high-efficiency scraper conveyor proposed in this invention;

[0043] Figure 12 This is a schematic diagram of the lateral structure of the lubrication mechanism of an electrically heated high-efficiency scraper conveyor proposed in this invention.

[0044] Legend:

[0045] 1. Conveyor frame; 2. Feed hopper; 3. Drive unit; 4. Lubrication mechanism; 401. Lubrication shell; 402. Immersion section; 403. Liquid reservoir; 404. Bushing; 405. Coating ball; 5. Scraper body; 6. Scraper chain; 7. Buffer assembly; 701. Buffer shell; 702. Screw; 703. Lubrication groove plate; 704. Telescopic rod; 705. First spring; 706. Mounting plate; 707. Extrusion roller; 708. Sealing pad; 7 09. Elastic plate; 710. Elastic bladder; 711. Track groove; 712. Compression rod; 713. Moving sleeve; 714. Sliding block; 715. Guide rod; 716. Second spring; 717. Fixing plate; 8. Connecting assembly; 801. Connecting plate; 802. Rotating block; 803. Connecting slot seat; 804. Opening groove; 805. Abutment sleeve; 806. Receiving pad; 807. Sliding rod; 808. Third spring; 809. Sliding sleeve. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please see Figures 1-12 The present invention provides a technical solution: an electrically heated high-efficiency scraper conveyor, including a conveyor frame 1, drive rollers are rotatably connected to both sides of the inner cavity of the conveyor frame 1, a drive unit 3 is drivenly connected to one end of at least one drive roller, the drive unit 3 is installed outside the conveyor frame 1, sprockets are provided on both sides of the outer side of the drive roller, a scraper chain 6 is drivenly connected between the sprockets on the same side, a buffer assembly 7 is connected to the outer periphery of the scraper chain 6, the buffer assembly 7 includes a buffer shell 701, a connecting assembly 8 is rotatably connected inside the buffer shell 701, and a scraper body 5 is connected to one side of the connecting assembly 8;

[0048] The connecting assembly 8 includes a connecting plate 801 connected to one side of the scraper body 5. A rotating block 802 is connected to the top of the connecting plate 801. The rotating block 802 is rotatably connected to the buffer shell 701. A lubrication mechanism 4 is installed outside the drive roller. The lubrication mechanism 4 contacts the buffer assembly 7 and the sprocket side at the corresponding positions. The lubrication mechanism 4 lubricates the buffer assembly 7 and the sprocket to reduce friction. The top of the conveyor frame 1 has a discharge bin 2.

[0049] Please see Figure 6 and Figure 7Both sides of the buffer shell 701 are threadedly connected to the outer chain plate of the scraper chain 6 at the corresponding positions by screws 702. The inner cavity of the buffer shell 701 is rotatably connected to the rotating block 802. Both sides of the inner cavity of the buffer shell 701 have extrusion rollers 707, which abut against the rotating block 802 to flexibly rotate and absorb energy.

[0050] One side of the extrusion roller 707 is connected to a telescopic rod 704, and the other end of the telescopic rod 704 is connected to a mounting plate 706. The mounting plate 706 is connected to the inside of the buffer shell 701. A first spring 705 is sleeved on the outside of the telescopic rod 704. The two ends of the first spring 705 are respectively connected to the corresponding positions on one side of the extrusion roller 707 and the mounting plate 706.

[0051] Two slidable pressing rods 712 are provided in the inner cavity of the buffer shell 701 at the position corresponding to the rotating block 802. The pressing rods 712 abut against the outer wall of the rotating block 802 to absorb energy. Both sides of the pressing rods 712 are slidably connected to the track groove 711 connected to the inner cavity of the buffer shell 701. A movable sleeve 713 is slidably connected in the track groove 711. A sliding block 714 is connected to one side of the movable sleeve 713. Guide rods 715 are connected to both ends of one side of the sliding block 714. An anti-detachment plate is connected between the two guide rods 715. Fixed plates 717 are connected to both sides of the inner cavity of the track groove 711 at the position corresponding to the guide rods 715. Guide holes are opened at both ends of one side of the fixed plate 717. The guide rods 715 are slidably connected in the guide holes. A second spring 716 is sleeved on the outside of the guide rods 715. The two ends of the second spring 716 are respectively connected to the fixed plate 717 and the corresponding position of the sliding block 714.

[0052] Specifically, through the designed connecting component 8 and buffer component 7, when the scraper chain 6 is driven by the sprocket, the scraper chain 6 can rotate within the buffer shell 701 via the rotating block 802 to flexibly deflect, which is beneficial for absorbing the scraping impact through the deflection of the scraper body 5 and extending the scraper's service life.

[0053] Furthermore, to overcome the displacement of the rotating block 802, the rotating block 802 can contact the two pressing rods 712 when it is squeezed. The pressing rods 712 can slide in the track groove 711 through the moving sleeve 713 when pressed. When the moving sleeve 713 slides, it can slide in the fixed plate 717 through the guide rod 715. When the moving sleeve 713 slides, it can squeeze the external second spring 716. The second spring 716 can absorb the shaking displacement of the pressing rod 712. It is beneficial to absorb the vibration displacement of the rotating block 802 and the scraper body 5 through the energy dissipation of the movement of the two pressing rods 712. It is beneficial to further improve the transmission stability between the scraper chains 6. In addition, the scraper chain 6 can be quickly disassembled and assembled with the buffer shell 701 through the screw 702, which is convenient for replacement after damage.

[0054] At the same time, when the deflection block rotates, the upward impact can contact the extrusion roller 707. The extrusion roller 707 is pressed and can squeeze the external first spring 705 through the contraction of the telescopic rod 704. The first spring 705 can use its own elasticity to maintain the limiting energy absorption effect between the extrusion roller 707 and the rotating block 802, thereby improving the transmission stability of the scraper chain 6.

[0055] The buffer assembly 7 also includes a sealing pad 708 connected to the bottom opening of the buffer shell 701. An elastic bladder 710 is connected to the top of the sealing pad 708, and an elastic plate 709 is connected to the other end of the elastic bladder 710. The elastic plate 709 is connected to a corresponding position on one side of the inner cavity of the buffer shell 701, and the rotation opening of the rotating block 802 is closed by the sealing pad 708.

[0056] Specifically: To prevent dust from the conveyed material from entering the rotation gap of the rotating block 802, when the sealing pad 708 is closed in the opening, the rotating block 802 can contact the sealing pad 708 at the corresponding position on the bottom side when it rotates. The sealing pad 708 can be moved upward under force and squeeze the elastic bladder 710 and the elastic plate 709. The elastic plate 709 can absorb the impact of the bottom sealing pad 708 with its own elasticity, thereby fully sealing the bottom opening of the buffer shell 701. This helps to prevent dust from entering the gap of the rotating block 802 by sealing the opening, thus improving the overall service life.

[0057] Please see Figure 8 A mounting hole is provided on one side of the connecting plate 801, and a limit bolt is inserted into the mounting hole. The connecting plate 801 is connected to the scraper chain 6 through the limit bolt. A connecting groove seat 803 is connected to the inner cavity of the mounting hole. An opening groove 804 is provided in the inner cavity of the connecting groove seat 803. An abutment sleeve 805 is slidably connected in the opening groove 804. Sliding sleeves 809 are connected to both sides of the abutment sleeve 805. A sliding rod 807 is slidably connected in the sliding sleeve 809. The two ends of the sliding rod 807 are respectively located at corresponding positions on both sides of the inner cavity of the opening groove 804. A third spring 808 is sleeved on the outside of the sliding rod 807. The two ends of the third spring 808 are respectively connected to the corresponding positions on both sides of the sliding sleeve 809 and the inner cavity of the opening groove 804. The scraper body 5 is flexibly installed in the mounting hole through the limit bolt.

[0058] The bottom of the abutment sleeve 805 is connected to a receiving pad 806, and the other side of the receiving pad 806 is connected to the first position on one side of the inner cavity of the opening groove 804, and the mounting hole is closed by the sealing sleeve and the abutment sleeve 805.

[0059] Specifically: Through the designed mounting holes, the scraper body 5 can slide within the mounting holes via the limiting bolts. When the scraper body 5 slides, it can drive the abutment sleeve 805 to move within the connecting groove seat 803 via the limiting bolts. The abutment sleeve 805 can slide within the opening groove 804 and slide outside the slide rod 807 via the two side sliding sleeves 809. The movement of the sliding sleeve 809 can compress the external third spring 808. The third spring 808 can absorb the shaking and offset using its own elasticity, which helps to improve the movement stability of the abutment sleeve 805. Furthermore, when the abutment sleeve 805 moves, it can always compress the receiving pad 806. The receiving pad 806 can fully seal the mounting hole gap, preventing dust from entering the connecting plate 801. Thus, the scraper movement stability can be improved through the flexible movement of the scraper body 5.

[0060] Meanwhile, the connecting plate 801 and the rotating block 802 can be modularly replaced as needed, making it convenient to replace a damaged chain.

[0061] Please see Figure 6 and Figures 11-12 The top of the buffer shell 701 is connected to a lubrication groove plate 703. The top of the lubrication groove plate 703 and the top of the buffer shell 701 are provided with through slots. The contact between the lubrication groove plate 703 and the lubrication mechanism 4 allows the lubricating oil to soak into the buffer shell 701.

[0062] The lubrication mechanism 4 includes a lubrication shell 401. Multiple liquid storage bladders 403 are connected to the periphery of the inner cavity of the lubrication shell 401. The liquid storage bladders 403 are connected to pipes through one-way valves. The pipes extend to the lubrication shell 401 and are connected to a wetting part 402. The wetting part 402 is slidably connected to a groove opened on the outside of the lubrication shell 401. A liquid filling valve port is connected to one side of the lubrication shell 401. Lubricating oil is filled into the multiple liquid storage bladders 403 through the liquid filling valve port.

[0063] A bushing 404 is connected to one side of the lubrication shell 401. The bushing 404 is sleeved on the outside of the drive roller. Multiple coating balls 405 are rotatably connected to one side of the bushing 404 along the axis. The bushing 404 has an oil cavity inside. The oil cavity extends to one side of the reservoir 403 and is connected to the reservoir 403 through a one-way valve.

[0064] Specifically: Through the designed lubrication groove plate 703, when the scraper chain 6 moves, the scraper chain 6 can be driven to the side of the drive roller by the chain head, and the lubrication groove plate 703 on the top of the buffer shell 701 can contact the wetting part 402. The wetting part 402 can wet the top of the lubrication groove plate 703 with oil. The oil can wet into the lubrication shell 401 through the groove holes of the lubrication groove plate 703. The rotational stability of the rotating block 802 in the lubrication shell 401 can be maintained by the lubricating oil, reducing hard friction and wear, and improving the service life. The coating can prevent the lubricating oil from being directly coated into the lubrication shell 401, which would cause the lubricating oil to contaminate the conveyed material.

[0065] Furthermore, when the immersion part 402 is squeezed, it can slide in the tank and press the inner liquid storage bladder 403. When the liquid storage bladder 403 is pressed, it can discharge liquid from one side through the one-way valve so that the immersion part 402 is always filled with lubricating oil, which is beneficial to improving the lubrication effect on the scraper chain 6.

[0066] Furthermore, through the designed bushing 404, when the reservoir 403 is squeezed, liquid can be injected into the oil chamber and the coating ball 405 through a one-way valve. After injection, the coating ball 405 can coat one side of the drive roller, maintaining the lubrication stability of the drive roller.

[0067] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electric heating type high-efficiency flight conveyor, comprising a conveying frame (1), drive rollers are rotatably connected to both sides of the inner cavity of the conveying frame (1), at least one end of the drive roller is drivingly connected with a driving part (3), the driving part (3) is installed outside the conveying frame (1), chain wheels are arranged at both ends of the drive roller, and flight chains (6) are drivingly connected between the chain wheels on the same side, characterized in that, The outer periphery of the scraper chain (6) is connected to a buffer assembly (7), the buffer assembly (7) includes a buffer shell (701), a connecting assembly (8) is rotatably connected inside the buffer shell (701), and a scraper body (5) is connected to one side of the connecting assembly (8). The connecting assembly (8) includes a connecting plate (801) connected to one side of the scraper body (5), a rotating block (802) connected to the top of the connecting plate (801), the rotating block (802) being rotatably connected to the buffer shell (701), and a lubrication mechanism (4) installed on the outside of the drive roller. The lubrication mechanism (4) contacts the buffer assembly (7) and the sprocket side at the corresponding position, and lubricates and reduces friction by the lubrication mechanism (4) contacting the buffer assembly (7) and the sprocket. Both sides of the buffer shell (701) are threadedly connected to the outer chain plate of the scraper chain (6) at the corresponding position by screws (702). The inner cavity of the buffer shell (701) is rotatably connected to the rotating block (802). Both sides of the inner cavity of the buffer shell (701) have extrusion rollers (707), which flexibly rotate and absorb energy by abutting against the rotating block (802) through the extrusion rollers (707). One side of the extrusion roller (707) is connected to a telescopic rod (704), and the other end of the telescopic rod (704) is connected to a mounting plate (706). The mounting plate (706) is connected to the inner side of the buffer shell (701). A first spring (705) is sleeved on the outside of the telescopic rod (704). The two ends of the first spring (705) are respectively connected to the corresponding positions on one side of the extrusion roller (707) and the mounting plate (706). The inner cavity of the buffer shell (701) is provided with two slidable compression rods (712) corresponding to the position of the rotating block (802). The compression rods (712) abut against the outer wall of the rotating block (802) to absorb energy. Both sides of the compression rods (712) are slidably connected to the track grooves (711) connected to the inner cavity of the buffer shell (701). A movable sleeve (713) is slidably connected in the track grooves (711). A sliding block (714) is connected to one side of the movable sleeve (713). Both ends of one side of the sliding block (714) are connected to guides. The guide rod (715) is connected to the guide rods (715) on both sides by an anti-detachment plate. The inner cavity of the track groove (711) is connected to the guide rods (715) on both sides by a fixing plate (717). The fixing plate (717) has guide holes at both ends on one side. The guide rod (715) is slidably connected in the guide hole. The guide rod (715) is sleeved with a second spring (716). The two ends of the second spring (716) are respectively connected to the fixing plate (717) and the corresponding position on one side of the sliding block (714). The buffer assembly (7) also includes a sealing pad (708) connected to the bottom opening of the buffer shell (701). The top of the sealing pad (708) is connected to an elastic bladder (710), and the other end of the elastic bladder (710) is connected to an elastic plate (709). The elastic plate (709) is connected to a corresponding position on one side of the inner cavity of the buffer shell (701), and the sealing pad (708) seals the rotation opening of the rotating block (802).

2. The electrically heated high-efficiency scraper conveyor according to claim 1, characterized in that, The connecting plate (801) has an installation hole on one side, and a limit bolt is inserted in the installation hole. The connecting plate (801) is connected to the scraper chain (6) through the limit bolt. The inner cavity of the installation hole is connected to the connecting groove seat (803). The inner cavity of the connecting groove seat (803) has an opening groove (804). The opening groove (804) is slidably connected to the abutment sleeve (805). Both sides of the abutment sleeve (805) are connected to the sliding sleeve (809). The sliding sleeve (809) is slidably connected to the sliding rod (807). The two ends of the sliding rod (807) are respectively located at the corresponding positions on both sides of the inner cavity of the opening groove (804). A third spring (808) is sleeved on the outside of the sliding rod (807). The two ends of the third spring (808) are respectively connected to the corresponding positions on both sides of the sliding sleeve (809) and the inner cavity of the opening groove (804). The scraper body (5) is flexibly installed in the installation hole through the limit bolt.

3. The electrically heated high-efficiency scraper conveyor according to claim 2, characterized in that, The bottom of the abutment sleeve (805) is connected to a receiving pad (806), and the other side of the receiving pad (806) is connected to a first position on one side of the inner cavity of the opening groove (804). The mounting hole is closed by the receiving pad (806) and the abutment sleeve (805).

4. The electrically heated high-efficiency scraper conveyor according to claim 1, characterized in that, The top of the buffer shell (701) is connected to a lubrication groove plate (703). The top of the lubrication groove plate (703) and the top of the buffer shell (701) are provided with through slots. The contact between the lubrication groove plate (703) and the lubrication mechanism (4) allows the lubricating oil to soak into the buffer shell (701).

5. The electrically heated high-efficiency scraper conveyor according to claim 1, characterized in that, The lubrication mechanism (4) includes a lubrication shell (401), and a plurality of liquid storage bladders (403) are connected to the periphery of the inner cavity of the lubrication shell (401). The liquid storage bladders (403) are connected to a pipe through a one-way valve, and the pipe extends to the lubrication shell (401). An immersion part (402) is connected to the lubrication shell (401), and the immersion part (402) is slidably connected to a groove opened on the outside of the lubrication shell (401). A liquid filling valve port is connected to one side of the lubrication shell (401), and lubricating oil is filled into the plurality of liquid storage bladders (403) through the liquid filling valve port.

6. The electrically heated high-efficiency scraper conveyor according to claim 5, characterized in that, The lubricating shell (401) is connected to a bushing (404) on one side. The bushing (404) is sleeved on the outside of the drive roller. Multiple coating balls (405) are rotatably connected to one side of the bushing (404) along the axis. The bushing (404) has an oil cavity inside. The oil cavity extends to one side of the reservoir (403) and is connected to the reservoir (403) through a one-way valve.

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