Belt conveyor for grain and oil production

Abstract

The invention belongs to the technical field of grain and oil production, and discloses a grain and oil production belt conveyor which comprises a conveying rack. The sliding block is slidably connected to the interior of the outer side of the conveying rack; and the rotating shaft is movably sleeved in the sliding block. According to the technical scheme, by arranging the driving arm, the driving shaft and the oil pipe, the driving arm can be smoothly driven to rotate by starting the power motor, at the moment, the driving shaft at one end of the driving arm slides on the inner wall of the movable frame on one side to drive the movable frame on one side to move outwards, and then the output end of the first hydraulic cylinder can be driven to stretch out; hydraulic oil in an inner cavity of a first hydraulic cylinder enters an inner cavity of a second hydraulic cylinder through an oil pipe, the output end of the second hydraulic cylinder drives a movable frame at the other end to move outwards, and finally the two movable frames drive a sliding block and a rotating shaft to move oppositely, so that a conveying belt in transmission connection with the surface of the rotating shaft is smoothly tensioned, and friction force is increased; the conveying efficiency of grain and oil raw materials is greatly improved, and meanwhile derailing is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of grain and oil production, in particular to a belt conveyor for grain and oil production. Background Art

[0002] The belt conveyor for grain and oil production, also known as the belt conveyor, is an indispensable and important equipment in the grain and oil industry. It is mainly used for the transportation of grain, oil and other materials. It has the advantages of simple structure, stable operation, large conveying capacity and low energy consumption. Its working principle is based on the friction between the conveyor belt and the driving roller. The driving device (such as an electric motor) drives the roller to rotate, and the friction between the conveyor belt and the roller makes the conveyor belt move continuously, and the material is loaded on the conveyor belt and moves to the destination with the conveyor belt.

[0003] When the existing belt conveyor for grain and oil production transports materials for grain and oil production, the conveyor belt will be subjected to the material pressure and the rotation vibration of the roller. Under long-term operation, the conveyor belt will become loose, thereby reducing the friction with the rotating rollers on both sides, which will reduce the efficiency of subsequent transportation and even cause the conveyor belt to tilt and derail. Therefore, it is necessary to improve it. Summary of the invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a belt conveyor for grain and oil production, which has the advantage of being easy to adjust the tightness of the conveyor belt.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a belt conveyor for grain and oil production, comprising a conveyor frame; a sliding block, slidably connected to the inside of the outer side of the conveyor frame; a rotating shaft, movably sleeved inside the sliding block; an adjusting component comprising a movable frame, the movable frame is fixedly installed on the bottom of the sliding block, a power motor located near the side of the movable frame is fixedly installed at the bottom of the conveyor frame, a driving arm is fixedly sleeved at the output end of the power motor, a driving shaft located on the inner wall of the movable frame is fixedly installed inside one end of the driving arm, and a synchronization component located outside the inner end of the movable frame is provided at the bottom of the conveyor frame.

[0006] Preferably, a driving motor is fixedly mounted on the surface of one side of the sliding block, an output end of the driving motor is fixedly connected to a rotating shaft, and the two rotating shafts are connected to each other through a conveyor belt transmission.

[0007] Preferably, the synchronization assembly includes a first hydraulic cylinder, a second hydraulic cylinder and an oil pipe;

[0008] The first hydraulic cylinder is fixedly installed at the bottom of the conveying frame and the inner side of the movable frame at one end, and the output end is fixedly connected to the inner side of the movable frame. The second hydraulic cylinder is fixedly installed at the top of the conveying frame and the inner side of the movable frame at the other end, and the output end of the second hydraulic cylinder is fixedly connected to the inner side of the movable frame. The oil pipe is used to connect the second hydraulic cylinder and the first hydraulic cylinder.

[0009] Preferably, a linkage assembly located outside the top of the power motor is provided at the bottom of the conveyor frame, and the linkage assembly includes a driving gear, a driven gear block and a power spring;

[0010] The driving gear is fixedly sleeved on the output end of the power motor and the top of the driving arm, the driven gear block is slidably connected to the bottom of the conveyor frame and the two sides of the driven gear block, the inner side of the driven gear block is meshed with the surface of the driving gear, and the power spring is fixedly installed on the outer side of the top end of the driven gear block.

[0011] Preferably, one end of the power spring away from the driven gear block is fixedly connected to the bottom inner wall of the conveyor frame.

[0012] Preferably, a clamping and limiting assembly located outside the conveyor belt is arranged on the inner side of the conveyor frame, and the clamping and limiting assembly includes a clamping and limiting plate, a limiting rod and a linkage plate;

[0013] The clamping limit plate is movably installed on the inner side of the conveying frame, the limit rod is fixedly installed on the middle part of the outer end of the clamping limit plate and passes through the conveying frame, the linkage plate is movably sleeved on the bottom of the conveying frame and the outer side of the first hydraulic cylinder, and the tops of both ends of the linkage plate are movably connected to the driven gear block and the inner wall of the bottom of the limit rod respectively.

[0014] Preferably, a toothed bar located at the top of the sliding block is movably installed inside the conveyor frame, and a buffer assembly located at the top of the middle of the toothed bar is provided on the inner wall of the conveyor frame, and both sides of the bottom of the toothed bar are meshed with the top of the sliding block.

[0015] Preferably, the buffer assembly includes a buffer gas cylinder, a buffer piston rod, a connecting arm and a buffer spring;

[0016] The buffer gas cylinder is fixedly installed inside the conveyor frame and on both sides of the top of the gear bar, the buffer piston rod is movably installed in the inner cavity of the buffer gas cylinder, the connecting arm is hinged to the inner side of the buffer piston rod, and the other end is hinged to the middle part of the top of the gear bar, and the buffer spring is fixedly installed on the outer side of the buffer piston rod.

[0017] Preferably, one end of the buffer spring away from the buffer piston rod is fixedly connected to the inner wall of the buffer gas cylinder.

[0018] Preferably, the inner end of the top of the buffer air cylinder is fixedly connected to an air inlet and exhaust pipe, and the inner wall of the air inlet and exhaust pipe is provided with a one-way valve flap.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The above technical solution sets a driving arm, a driving shaft and an oil pipe, and by starting the power motor, the driving arm can be smoothly driven to rotate. At this time, the driving shaft at one end of the driving arm will slide on the inner wall of the movable frame on one side to drive the movable frame on one side to move outward, and then the output end of the first hydraulic cylinder can be driven to extend, so that the hydraulic oil in the inner cavity of the first hydraulic cylinder enters the inner cavity of the second hydraulic cylinder through the oil pipe, so that the output end of the second hydraulic cylinder drives the movable frame at the other end to move outward, and finally the sliding block and the rotating shaft are driven to move in opposite directions through the two movable frames, so that the conveyor belt connected to the surface of the rotating shaft is smoothly tightened to increase the friction, thereby greatly improving the transportation efficiency of grain and oil raw materials and avoiding derailment.

[0021] The present invention arranges a driving gear, a driven gear block and a linkage plate. When the power motor drives the output shaft to rotate, the driving gear can be driven to rotate at the same time. At this time, the surface of the driving gear will squeeze and push the inner side of the driven gear block, thereby driving the two driven gear blocks to move in opposite directions. Then, one end of the linkage plate can slide on the inner wall of the driven gear block, and the linkage plate can be driven to rotate as a whole. Finally, the other end can slide on the inner wall of the bottom of the limit rod, thereby driving the limit rod and the clamping limit plate to move towards each other. When adjusting the sliding block and the rotating shaft as a whole, the conveyor belt can be clamped and limited synchronously to avoid deviation when adjusting the tightness, thereby keeping the conveyor belt always centered.

[0022] The present invention provides a rack and a buffer gas cylinder. When the sliding block and the rotating shaft move in opposite directions as a whole, the teeth on the top of the sliding block squeeze and push the teeth on the bottom of the rack and drive the rack as a whole upward. Then, when the sliding block and the rotating shaft stop moving in opposite directions, the air pressure inside the buffer gas cylinder and the elastic force of the buffer spring will push the buffer piston rod, so that the connecting arm drives the rack downward, so that the bottom end of the rack contacts the top end of the sliding block to assist in clamping the sliding block. Finally, the buffer assembly and the rack can be used to clamp the sliding block while buffering the vibration of the sliding block caused by the rotation of the rotating shaft to avoid damage to the power motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a synchronization component of the present invention;

[0026] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a buffer assembly of the present invention;

[0027] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at point A in the middle;

[0028] Figure 6 It is a bottom view structural schematic diagram of the clamping and limiting assembly of the present invention;

[0029] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at B in the middle;

[0030] Figure 8 for Figure 6 Schematic diagram of the local enlarged structure at point C in the middle.

[0031] In the figure: 1. conveyor frame; 2. sliding block; 3. rotating shaft; 4. driving motor; 5. conveyor belt; 6. adjusting assembly; 601. movable frame; 602. power motor; 603. driving arm; 604. driving shaft; 7. synchronization assembly; 701. first hydraulic cylinder; 702. second hydraulic cylinder; 703. oil pipe; 8. linkage assembly; 801. driving gear; 802. driven gear block; 803. power spring; 9. clamping limit assembly; 901. clamping limit plate; 902. limit rod; 903. linkage plate; 10. toothed bar; 11. buffer assembly; 1101. buffer air cylinder; 1102. buffer piston rod; 1103. connecting arm; 1104. buffer spring; 12. inlet and outlet pipes; 13. one-way valve disc. DETAILED DESCRIPTION

[0032] 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 creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 8 As shown, the present invention provides a belt conveyor for grain and oil production, including a conveyor frame 1; a sliding block 2, which is slidably connected to the inner part of the outer side of the conveyor frame 1; a rotating shaft 3, which is movably sleeved inside the sliding block 2; an adjusting component 6 includes a movable frame 601, and the movable frame 601 is fixedly installed at the bottom of the sliding block 2, and a power motor 602 located on a side close to the movable frame 601 is fixedly installed at the bottom of the conveyor frame 1, and a driving arm 603 is fixedly sleeved at the output end of the power motor 602, and a driving shaft 604 located on the inner wall of the movable frame 601 is fixedly installed inside one end of the driving arm 603, and a synchronization component 7 located on the outer side of the inner end of the movable frame 601 is provided at the bottom of the conveyor frame 1.

[0034] When the power motor 602 is running, the output end can drive the driving arm 603 to rotate, and the driving shaft 604 at one end of the driving arm 603 can move on the inner wall of the movable frame 601 on one side to push the movable frame 601 to move outward, and then the movable frame 601 at the other end can be driven to move outward through the synchronization component 7, so that the two movable frames 601 drive the sliding block 2 and the rotating shaft 3 to move smoothly away from each other.

[0035] like Figure 1 As shown, a driving motor 4 is fixedly mounted on the surface of one side of the sliding block 2 , and the output end of the driving motor 4 is fixedly connected to the rotating shaft 3 , and the rotating shafts 3 are transmission-connected to each other through a conveyor belt 5 .

[0036] The above solution is adopted: by providing a driving motor 4, the operation of the driving motor 4 will drive the rotating shaft 3 to rotate, and then drive the conveyor belt 5 on the surface of the rotating shaft 3 to move, so that the rotating shaft 3 on the other side rotates synchronously.

[0037] like Figure 2 and Figure 3 As shown, the synchronization assembly 7 includes a first hydraulic cylinder 701, a second hydraulic cylinder 702 and an oil pipe 703;

[0038] The first hydraulic cylinder 701 is fixedly installed at the bottom of the conveyor frame 1 and the inner side of the movable frame 601 at one end, and the output end is fixedly connected to the inner side of the movable frame 601. The second hydraulic cylinder 702 is fixedly installed at the top of the conveyor frame 1 and the inner side of the movable frame 601 at the other end, and the output end of the second hydraulic cylinder 702 is fixedly connected to the inner side of the movable frame 601. The oil pipe 703 is used to connect the second hydraulic cylinder 702 and the first hydraulic cylinder 701.

[0039] The above scheme is adopted: by providing a first hydraulic cylinder 701, when the movable frame 601 on one side moves outward, the output end of the first hydraulic cylinder 701 will be driven to extend, so that the hydraulic oil in the inner cavity of the first hydraulic cylinder 701 is pushed to the inner cavity of the second hydraulic cylinder 702 through the oil pipe 703, and then the output end of the second hydraulic cylinder 702 pushes the movable frame 601 on the other side to move outward synchronously.

[0040] like Figure 3 and Figure 7 As shown, a linkage assembly 8 is provided at the bottom of the conveyor frame 1 and is located outside the top of the power motor 602. The linkage assembly 8 includes a driving gear 801, a driven gear block 802 and a power spring 803;

[0041] The driving gear 801 is fixedly sleeved on the output end of the power motor 602 and the top of the driving arm 603, the driven gear block 802 is slidably connected to the bottom of the conveyor frame 1 and the two sides of the driven gear block 802, the inner side of the driven gear block 802 is meshed with the surface of the driving gear 801, and the power spring 803 is fixedly installed on the outer side of the top of the driven gear block 802.

[0042] By adopting the above solution: by providing a driving gear 801, when the power motor 602 runs and drives the driving gear 801 to rotate, the teeth on the surface of the driving gear 801 will squeeze and push the teeth inside the driven gear block 802 to push the two driven gear blocks 802 to move in opposite directions.

[0043] like Figure 3 As shown, one end of the power spring 803 away from the driven gear block 802 is fixedly connected to the bottom inner wall of the conveyor frame 1.

[0044] The above solution is adopted: by providing a power spring 803, when the elastic force of the power spring 803 is restored, it will push the driven gear block 802 to reset toward each other.

[0045] like Figure 6 As shown, a clamping and limiting assembly 9 located outside the conveyor belt 5 is provided on the inner side of the conveyor frame 1, and the clamping and limiting assembly 9 includes a clamping and limiting plate 901, a limiting rod 902 and a linkage plate 903;

[0046] The clamping limit plate 901 is movably installed on the inner side of the conveying frame 1, the limit rod 902 is fixedly installed on the middle part of the outer end of the clamping limit plate 901 and passes through the conveying frame 1, the linkage plate 903 is movably sleeved on the bottom of the conveying frame 1 and the outer side of the first hydraulic cylinder 701, and the tops of both ends of the linkage plate 903 are movably connected to the driven gear block 802 and the inner wall of the bottom of the limit rod 902 respectively.

[0047] By adopting the above solution, the linkage plate 903 is provided. When the two driven gear blocks 802 rotate, the linkage plate 903 is driven to rotate, and the limiting rod 902 and the clamping limiting plate 901 are driven to move toward each other.

[0048] like Figure 4 As shown, a rack 10 located at the top of the sliding block 2 is movably installed inside the conveyor frame 1, and a buffer assembly 11 located at the top of the middle part of the rack 10 is provided on the inner wall of the conveyor frame 1, and the bottom sides of the rack 10 are meshed with the top of the sliding block 2.

[0049] The above solution is adopted: by providing the buffer component 11, the cooperation between the buffer component 11 and the rack 10 can assist in pressing the top of the sliding block 2 and buffer the rotational vibration of the rotating shaft 3 at the same time.

[0050] like Figure 4As shown, the buffer assembly 11 includes a buffer gas cylinder 1101, a buffer piston rod 1102, a connecting arm 1103 and a buffer spring 1104;

[0051] The buffer air cylinder 1101 is fixedly installed inside the conveyor frame 1 and on both sides of the top of the rack 10, the buffer piston rod 1102 is movably installed in the inner cavity of the buffer air cylinder 1101, the connecting arm 1103 is hinged to the inner side of the buffer piston rod 1102, and the other end is hinged to the middle part of the top of the rack 10, and the buffer spring 1104 is fixedly installed on the outer side of the buffer piston rod 1102.

[0052] The above scheme is adopted: by providing a connecting arm 1103, when the tooth bar 10 is upward as a whole, the connecting arm 1103 will be deflected to push the buffer piston rod 1102 to move in the opposite direction as a whole, which can push the air pressure inside the buffer gas cylinder 1101 to be compressed, and then the gas can buffer the vibration generated by the subsequent operation of the rotating shaft 3.

[0053] like Figure 4 As shown, one end of the buffer spring 1104 away from the buffer piston rod 1102 is fixedly connected to the inner wall of the buffer gas cylinder 1101 .

[0054] The above solution is adopted: by providing a buffer spring 1104, due to the elastic force of the buffer spring 1104, it can assist in pushing the buffer piston rod 1102 to reset and assist in the subsequent buffering of the sliding block 2.

[0055] like Figure 5 As shown, the inner end of the top of the buffer air cylinder 1101 is fixedly connected to the air inlet and exhaust pipe 12, and the inner wall of the air inlet and exhaust pipe 12 is provided with a one-way valve flap 13.

[0056] The above scheme is adopted: by providing an air inlet and exhaust pipe 12, when the buffer piston rod 1102 moves toward or away from each other, the air inlet and exhaust pipe 12 can drive the one-way valve flap 13 to open, so that the internal air of the buffer component 11 is exhausted and air is sucked from the outside, thereby maintaining the stable movement of the buffer piston rod 1102.

[0057] The working principle and use process of the present invention:

[0058] First, when the operator needs to transport the materials for grain and oil production, the material can be placed on the top side of the conveyor belt 5, and then the drive motor 4 is started to drive the rotating shaft 3 to rotate, and then the conveyor belt 5 can smoothly transport the material.

[0059] When the conveyor belt 5 becomes loose, the power motor 602 can be started to drive the driving arm 603 to rotate. The rotation of the driving arm 603 can make the driving shaft 604 at one end push the movable frame 601 on one side to move outward, and the output end of the first hydraulic cylinder 701 will be driven and pulled out, so that the hydraulic oil on the outside of the inner cavity of the first hydraulic cylinder 701 is pushed through the oil pipe 703 and introduced into the inner cavity of the second hydraulic cylinder 702. Then, the output end of the second hydraulic cylinder 702 will drive the movable frame 601 at the other end to move outward at the same time, and finally, the two power motors 602 drive the two sliding blocks 2 and the rotating shaft 3 to move synchronously and at the same distance in opposite directions to tighten the two ends of the conveyor belt 5 for subsequent material transportation.

[0060] At the same time, the operation of the power motor 602 will drive the driving gear 801 to rotate at the same time. Due to the meshing relationship between the surface of the driving gear 801 and the inner side of the driven gear block 802, the driving gear 801 will rotate and push the two driven gear blocks 802 to meet each other in reverse. Then, one end of the linkage plate 903 will be driven by the driven gear block 802 to slide on the inner wall, causing the linkage plate 903 to rotate as a whole. Subsequently, the other end of the linkage plate 903 will slide on the inner wall at the bottom of the limit rod 902, pulling the two limit rods 902 and the clamping limit plate 901 to move toward each other, and finally, the clamping limit plate 901 can clamp and limit the conveyor belt 5 when tightening and adjusting it towards each other to avoid displacement.

[0061] When the sliding block 2 and the rotating shaft 3 are stopped and face each other, the compressed air pressure of the buffer air cylinder 1101 and the elastic force of the buffer spring 1104 will push the buffer piston rod 1102 to drive the rack 10 to move downward through the connecting arm 1103, so that the bottom end of the rack 10 contacts the top end of the sliding block 2 to clamp the sliding block 2. Then, when the rotating shaft 3 rotates as a whole, vibration will be generated, which will cause the sliding block 2 to slide left and right, and the rack 10 and the buffer assembly 11 as a whole can buffer the force, thereby increasing the service life of the power motor 602.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor for grain and oil production, characterized in that: It comprises a conveyor frame (1); A sliding block (2) is slidably connected to the inside of the outer side of the conveying frame (1); A rotating shaft (3) is movably sleeved inside the sliding block (2); The adjusting component (6) comprises a movable frame (601), the movable frame (601) is fixedly mounted on the bottom of the sliding block (2), a power motor (602) located near the movable frame (601) is fixedly mounted on the bottom of the conveying frame (1), a driving arm (603) is fixedly sleeved on the output end of the power motor (602), a driving shaft (604) located on the inner wall of the movable frame (601) is fixedly mounted inside one end of the driving arm (603), and a synchronization component (7) located outside the inner end of the movable frame (601) is arranged at the bottom of the conveying frame (1).

2. The grain and oil production belt conveyor according to claim 1, characterized in that: A driving motor (4) is fixedly mounted on the surface of one side of the sliding block (2); the output end of the driving motor (4) is fixedly connected to the rotating shaft (3); and the two rotating shafts (3) are connected to each other by a conveyor belt (5).

3. The grain and oil production belt conveyor according to claim 1 is characterized in that: The synchronization component (7) comprises a first hydraulic cylinder (701), a second hydraulic cylinder (702) and an oil pipe (703); The first hydraulic cylinder (701) is fixedly installed at the bottom of the conveying frame (1) and the inner side of the movable frame (601) at one end, and the output end is fixedly connected to the inner side of the movable frame (601); the second hydraulic cylinder (702) is fixedly installed at the top of the conveying frame (1) and the inner side of the movable frame (601) at the other end, and the output end of the second hydraulic cylinder (702) is fixedly connected to the inner side of the movable frame (601); the oil pipe (703) is used to connect the second hydraulic cylinder (702) and the first hydraulic cylinder (701).

4. The grain and oil production belt conveyor according to claim 1, characterized in that: The bottom of the conveyor frame (1) is provided with a linkage assembly (8) located outside the top end of the power motor (602), and the linkage assembly (8) includes a driving gear (801), a driven gear block (802) and a power spring (803); The driving gear (801) is fixedly sleeved on the output end of the power motor (602) and the top of the driving arm (603); the driven gear block (802) is slidably connected to the bottom of the conveying frame (1) and the two sides of the driven gear block (802); the inner side of the driven gear block (802) is meshed with the surface of the driving gear (801); and the power spring (803) is fixedly installed on the outer side of the top end of the driven gear block (802).

5. The grain and oil production belt conveyor according to claim 4, characterized in that: One end of the power spring (803) away from the driven gear block (802) is fixedly connected to the inner wall of the bottom of the conveying frame (1).

6. The grain and oil production belt conveyor according to claim 1, characterized in that: A clamping and limiting assembly (9) located outside the conveyor belt (5) is arranged on the inner side of the conveyor frame (1), and the clamping and limiting assembly (9) comprises a clamping and limiting plate (901), a limiting rod (902) and a linkage plate (903); The clamping limit plate (901) is movably mounted on the inner side of the conveying frame (1); the limit rod (902) is fixedly mounted on the middle part of the outer end of the clamping limit plate (901) and passes through the conveying frame (1); the linkage plate (903) is movably sleeved on the bottom of the conveying frame (1) and the outer side of the first hydraulic cylinder (701); the tops of both ends of the linkage plate (903) are movably connected to the driven gear block (802) and the inner wall of the bottom of the limit rod (902), respectively.

7. The grain and oil production belt conveyor according to claim 1, characterized in that: A toothed bar (10) located at the top of the sliding block (2) is movably installed inside the conveying frame (1), and a buffer component (11) located at the top of the middle part of the toothed bar (10) is arranged on the inner wall of the conveying frame (1), and the two sides of the bottom of the toothed bar (10) are meshed with the top of the sliding block (2).

8. The grain and oil production belt conveyor according to claim 7, characterized in that: The buffer assembly (11) comprises a buffer air cylinder (1101), a buffer piston rod (1102), a connecting arm (1103) and a buffer spring (1104); The buffer gas cylinder (1101) is fixedly installed inside the conveyor frame (1) and on both sides of the top of the toothed bar (10); the buffer piston rod (1102) is movably installed in the inner cavity of the buffer gas cylinder (1101); the connecting arm (1103) is hinged to the inner side of the buffer piston rod (1102), and the other end is hinged to the middle part of the top of the toothed bar (10); the buffer spring (1104) is fixedly installed on the outer side of the buffer piston rod (1102).

9. The grain and oil production belt conveyor according to claim 8, characterized in that: One end of the buffer spring (1104) away from the buffer piston rod (1102) is fixedly connected to the inner wall of the buffer gas cylinder (1101).

10. The grain and oil production belt conveyor according to claim 8, characterized in that: The inner end of the top of the buffer air cylinder (1101) is fixedly connected to an air inlet and exhaust pipe (12), and a one-way valve flap (13) is provided on the inner wall of the air inlet and exhaust pipe (12).

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