O-shaped scraper conveyor capable of conveying different materials

Abstract

The invention relates to the technical field of scrapers, and discloses an O-shaped scraper capable of conveying different materials, which comprises a feed inlet mechanism, the left side and the right side of the feed inlet mechanism are respectively connected with a material conveying mechanism, the middle part of the material conveying mechanism is provided with a gearbox, and the front surface of the gearbox is provided with a motor; the other ends of the two material conveying mechanisms are provided with discharging ports located over the feeding port mechanisms. When a material conveying chain moves, a scraper continuously collides with a contact head, so that a vibration shifting rod moves back and forth between limiting blocks under the action of a reset spring, a vibration plate is driven to move left and right, a chain connecting plate and a chain are driven to move left and right through a buckle, and materials needing to be conveyed are screened; therefore, the corresponding screening frequency is provided while different speed transportation is adjusted according to materials in different forms, namely the denser the materials are, the faster the screening is, and the passing of the materials is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of scraper conveyors, and more particularly to an O-type scraper conveyor capable of conveying different materials. Background Art

[0002] Scraper machine, also known as scraper conveyor, is mainly composed of a driving device, a conveying device and a casing. Its working principle is to continuously transport the material to be conveyed in the casing with the help of a scraper chain driven by the driving device. It is widely used in various manufacturing industries due to its simple structure, low energy consumption and high conveying efficiency.

[0003] There are different types of scrapers according to the different forms of materials they transport. Among them, O-type scrapers have better sealing properties and are often used to transport powdered and granular materials, such as coal powder, limestone powder, grain, feed, sand, or sticky materials with a certain fluidity, such as cement concrete.

[0004] The existing Type 0 scraper has good sealing performance, but also has some problems. For example, when conveying coal powder, grain, and concrete, the materials are often mixed with large objects, such as agglomerated coal, accidentally mixed corn stalks, and large stones in concrete. These large objects enter the scraper and often get stuck between the scraper and the inner wall, causing damage to the inner wall, scraper, and chain.

[0005] Therefore, a new O-type scraper conveyor that can convey different materials is urgently needed. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an O-type scraper conveyor capable of conveying different materials, so as to solve the problems existing in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an O-type scraper capable of conveying different materials, comprising a feed inlet mechanism, the left and right sides of the feed inlet mechanism are respectively connected with material conveying mechanisms, a gearbox is installed in the middle of the material conveying mechanism, a motor is installed on the front of the gearbox, and a discharge port located directly above the feed inlet mechanism is installed at the other end of the two material conveying mechanisms; The material conveying mechanism includes a conveying channel shell, a return spring, a vibration lever base and a limit block four are installed in sequence on the top surface of the conveying channel shell, the number of the vibration lever bases is two, a vibration lever is installed between the two vibration lever bases through a cross bar, the limit block four is located at the bottom of the side between the two vibration lever bases, one side of the top of the vibration lever is fixedly connected to the other end of the return spring, a connecting block base is installed on the top of the vibration lever, and a connecting block is installed on the top of the connecting block base through a vibration connecting rod, a material conveying chain is installed inside the conveying channel shell, a scraper is installed on the side of the material conveying chain away from the conveying channel shell, the bottom of the vibration lever passes through the conveying channel shell and is installed with a contact head, the length of the contact head is the same as the vertical distance between the scraper and the inner wall of the conveying channel shell.

[0008] Furthermore, the feed port mechanism includes a feed port shell, a cross bar and a chain are installed on the top of the feed port shell, the cross bar and the chain are in a vertically staggered state, and worm spring boxes are installed at both ends of one side of the feed port shell, and a capstan connecting rod is installed between the two worm spring boxes, one end of the chain passes through the inner wall of the feed port shell and is fixedly connected to a capstan located outside the capstan connecting rod, the capstan includes a capstan side shell, a capstan inner shell is provided on the outside of the capstan connecting rod, the outside of the capstan inner shell is fixedly connected to the inner wall of the capstan side shell, a ratchet located inside the capstan inner shell is installed on the outside of the capstan connecting rod, and a block located on the inner circle of the capstan inner shell is installed on the inner wall of the capstan side shell through a movable rod.

[0009] Furthermore, a spring tube matched with the block is installed inside the inner shell of the capstan, the edge gear of the ratchet is matched with the size of the block, a capstan gear is installed between the end of the capstan connecting rod and the spiral spring box, a vibration plate is installed on the other side of the feed port shell, one side of the connecting block is fixedly connected to one side of the vibration plate, and a chain connecting plate is detachably installed on the other side of the vibration plate through a buckle, the number of the chain connecting plates is two, the horizontal heights of the two chain connecting plates are different, the number of the chains is eight, and the eight chains are divided into two groups of four, and the ends of each group of chains are equidistantly installed on the side of the chain connecting plate.

[0010] Furthermore, the gearbox includes a gearbox housing, a gear box is installed inside the gearbox housing, an input shaft of the gear box is installed with a disc gear, the disc gear is located outside the gearbox housing, the edge of the disc gear is meshed with the edge of the capstan gear, the output shaft of the gear box is installed with a reduction box output gear, the edge of the reduction box output gear is meshed with a rack mechanism, the rack mechanism includes a rack, a rack connecting rod is installed on the top of the rack, a rack connecting rod ball bearing is installed on the top of the rack connecting rod, a speed change gear assembly is mounted inside the rack connecting rod ball bearing, and the speed change gear assembly includes a rod 1 mounted on the inner wall of the gearbox housing.

[0011] Furthermore, the outside of the rod one is sequentially installed with speed gear one, speed gear two, speed gear three, limit block one, speed gear four, speed gear five, fixed sleeve rod one and speed gear six, the output shaft of the motor is installed with an input gear assembly through a reduction box, the input gear assembly includes rod two, and the outside of the rod two is sequentially installed with input gear one, input gear two, fixed sleeve rod two and input gear three.

[0012] Furthermore, limit blocks 2 located outside the rod 2 are installed on both sides of the fixed sleeve rod 2, and an output gear assembly corresponding to the input gear assembly is installed on the inner wall of the gearbox housing. The output gear assembly includes a rod 3, on which output gear 3, fixed sleeve rod 3, output gear 2, output gear 1 and are installed in sequence, and limit blocks 3 located outside the rod 3 are installed on both sides of the fixed sleeve rod 3, and the edges are meshed with the material conveying chain.

[0013] Furthermore, the sum of the diameter of the input gear one and the diameter of the speed gear one, the sum of the diameter of the input gear two and the diameter of the speed gear two, the sum of the diameter of the input gear three and the diameter of the speed gear three, the sum of the diameter of the output gear three and the diameter of the speed gear four, the sum of the diameter of the output gear two and the diameter of the speed gear five, and the sum of the diameter of the output gear one and the diameter of the speed gear six are the same.

[0014] Technical effects and advantages of the present invention: 1. The present invention drives the disc gear to rotate clockwise by pulling the two chain connecting plates, and drives the rack to move through the gear box, so that the speed change gear 4 is connected to the output gear 3, and the speed change gear 3 is connected to the input gear 3, thereby adjusting the movement speed of the material conveying chain while adjusting the screening aperture, so that different forms of materials can be transported at different speeds.

[0015] 2. The present invention allows the scraper to continuously collide with the contact head when the material conveying chain moves, so that the vibration lever moves back and forth between the limit blocks under the action of the return spring, driving the vibration plate to move left and right, and also driving the chain connecting plate and the chain to move left and right through the buckle, so as to screen the materials to be transported, thereby achieving different speeds for transporting materials in different forms and providing corresponding screening frequency, that is, the finer the material, the faster the screening, which is conducive to the passage of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic top view of the lower structure of the present invention; Figure 3 for Figure 2 A magnified schematic diagram of point A; Figure 4 is a cross-sectional schematic diagram of the vibration lever mechanism of the present invention; Figure 5 It is a side view schematic diagram of the vibration lever mechanism of the present invention; Figure 6 It is a top view schematic diagram of the feed port mechanism of the present invention; Figure 7 It is a cross-sectional schematic diagram of the feed port mechanism of the present invention; Figure 8 It is an enlarged schematic diagram of the capstan gear of the present invention; Fig. 9 It is a schematic diagram of the connection relationship of the rack mechanism of the present invention; Fig.10 It is a cross-sectional schematic diagram of a winch of the present invention; Fig.11 for Fig.10 An enlarged schematic diagram of point B; Fig.12 is a perspective view of the interior of a gearbox of the present invention; Fig.13 It is an expanded diagram of the connection relationship of the first-level transmission state of the present invention; Fig.14 It is an expanded diagram of the connection relationship of the secondary transmission state of the present invention; Fig.15 It is an expanded diagram of the connection relationship of the three-stage transmission state of the present invention; The reference numerals are: 1, feed port mechanism; 101, feed port housing; 102, cross bar; 103, chain; 1031, chain connecting plate; 104, vibration plate; 1041, buckle; 105, capstan connecting rod; 106, volute box; 107, capstan; 1071, capstan side housing; 1072, capstan inner housing; 1073, ratchet; 1074, movable rod; 1075, block; 1076, spring cylinder; 108, capstan gear; 2 , gearbox; 201, gearbox housing; 202, disc gear; 203, gear box; 204, reduction box output gear; 205, rack mechanism; 2051, rack; 2052, rack connecting rod; 2053, rack connecting rod ball bearing; 206, speed change gear assembly; 2061, rod one; 2062, limit block one; 2063, speed change gear one; 2064, speed change gear two; 2065, speed change gear three; 2066, speed change Gear 4; 2067, speed gear 5; 2068, speed gear 6; 2069, fixed sleeve rod 1; 207, input gear assembly; 2071, rod 2; 2072, input gear 1; 2073, input gear 2; 2074, input gear 3; 2075, fixed sleeve rod 2; 2076, limit block 2; 208, output gear assembly; 2081, rod 3; 2082, output gear 1; 2083, output gear 2; 20 84. Output gear three; 2085. Fixed sleeve rod three; 2086. Limit block three; 3. Motor; 4. Material conveying mechanism; 401. Conveying channel housing; 4011. Limit block four; 402. Vibration lever base; 403. Vibration lever; 4031. Contact head; 404. Return spring; 405. Connecting block base; 406. Vibration connecting rod; 407. Connecting block; 408. Material conveying chain; 4081. Scraper; 5. Discharge port. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The O-type scraper capable of conveying different materials involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0018] Reference Figure 1-15 As shown, the present invention provides an O-type scraper capable of conveying different materials, comprising a feed inlet mechanism 1, the left and right sides of the feed inlet mechanism 1 are respectively connected with material conveying mechanisms 4, a gearbox 2 is installed in the middle of the material conveying mechanism 4, a motor 3 is installed on the front of the gearbox 2, and a discharge port 5 located directly above the feed inlet mechanism 1 is installed at the other end of the two material conveying mechanisms 4; The material conveying mechanism 4 includes a conveying channel shell 401, on the top surface of which a return spring 404, a vibration lever base 402 and a limit block 4011 are sequentially installed. There are two vibration lever bases 402, and a vibration lever 403 is installed between the two vibration lever bases 402 through a cross bar. The limit block 4011 is located at the bottom of the side between the two vibration lever bases 402, and one side of the top of the vibration lever 403 is fixedly connected to the other end of the return spring 404. The vibration lever 403 A connecting block base 405 is installed on the top, a connecting block 407 is installed on the top of the connecting block base 405 through a vibrating connecting rod 406, a material conveying chain 408 is installed inside the conveying channel housing 401, a scraper 4081 is installed on the side of the material conveying chain 408 away from the conveying channel housing 401, and the bottom of the vibrating lever 403 passes through the conveying channel housing 401 and is installed with a contact head 4031, and the length of the contact head 4031 is the same as the vertical distance between the scraper 4081 and the inner wall of the conveying channel housing 401; It should be further explained that in this embodiment, the vibration lever 403 has a reset function during the movement by setting a reset spring 404, and a rotating shaft for the vibration connecting rod 406 to rotate is set on the top of the connecting block base 405, so that the vibration connecting rod 406 can drive the connecting block 407 to move horizontally, and the contact head 4031 is made of elastic material, which is convenient for the scraper 4081 to reset after the collision with the contact head 4031; The feed port mechanism 1 includes a feed port housing 101, a cross bar 102 and a chain 103 are installed on the top of the feed port housing 101, the cross bar 102 and the chain 103 are in a vertically staggered state, a spiral spring box 106 is installed at both ends of one side of the feed port housing 101, a capstan connecting rod 105 is installed between the two spiral spring boxes 106, one end of the chain 103 passes through the inner wall of the feed port housing 101 and is fixedly connected to a capstan 107 located outside the capstan connecting rod 105, the capstan 107 includes a capstan side shell 1071, a capstan inner shell 1072 is provided on the outside of the capstan connecting rod 105, the outside of the capstan inner shell 1072 is fixedly connected to the inner wall of the capstan side shell 1071, a ratchet 1073 located inside the capstan inner shell 1072 is installed on the outside of the capstan connecting rod 105, and the inner wall of the capstan side shell 1071 is installed with a ratchet located inside the capstan inner shell 1074. A block 1075 is arranged on the inner circle of the shell 1072, a spring cylinder 1076 matching with the block 1075 is installed inside the inner shell 1072 of the capstan, the edge gear of the ratchet 1073 matches with the size of the block 1075, a capstan gear 108 is installed between the end of the capstan connecting rod 105 and the spiral spring box 106, a vibration plate 104 is installed on the other side of the feed port shell 101, one side of the connecting block 407 is fixedly connected to one side of the vibration plate 104, and a chain connecting plate 1031 is detachably installed on the other side of the vibration plate 104 through a buckle 1041, the number of the chain connecting plates 1031 is two, and the horizontal heights of the two chain connecting plates 1031 are different, the number of the chains 103 is eight, and the eight chains 103 are divided into two groups of four, and the ends of each group of chains 103 are equidistantly installed on the side of the chain connecting plate 1031; It should be further explained in this embodiment that the chain 103 is moved laterally to screen the material by cooperating with the chain connecting plate 1031 through the vibration plate 104, and the disc gear 202 is driven by the capstan gear 108 to achieve subsequent speed change. The ratchet 1073, the movable rod 1074, and the spring cylinder 1076 cooperate to achieve that when one group of chain connecting plates 1031 is pulled to drive the capstan connecting rod 105 to rotate through the chain 103, it will not affect the other group of capstans 107. When the chain connecting plate 1031 installed on the vibration plate 104 is removed, the capstan connecting rod 105 drives the chain 103 to rotate and wind along the capstan 107 through the capstan 107 by setting the spiral spring box 106, so that the chain connecting plate 1031 is driven to return to the initial state. The gearbox 2 includes a gearbox housing 201, a gear box 203 is installed inside the gearbox housing 201, a disc gear 202 is installed on the input shaft of the gearbox 203, the disc gear 202 is located outside the gearbox housing 201, the edge of the disc gear 202 is meshed with the edge of the capstan gear 108, the output shaft of the gearbox 203 is installed with a reduction box output gear 204, the edge of the reduction box output gear 204 is meshed with a rack mechanism 205, the rack mechanism 205 includes a rack 2051, and a rack connecting rod 2 is installed on the top of the rack 2051. 052, a rack connecting rod ball bearing 2053 is installed on the top of the rack connecting rod 2052, and a speed change gear assembly 206 is installed inside the rack connecting rod ball bearing 2053. The speed change gear assembly 206 includes a rod 1 2061 which is mounted on the inner wall of the gearbox housing 201, and a speed change gear 1 2063, a speed change gear 2 2064, a speed change gear 3 2065, a limit block 1 2062, a speed change gear 4 2066, a speed change gear 5 2067, a fixed sleeve rod 1 2069 and a speed change gear 6 2068 are installed on the outside of the rod 1 2061 in sequence; The output shaft of the motor 3 is installed with an input gear assembly 207 through a reduction gear box. The input gear assembly 207 includes a rod 2071. The outside of the rod 2071 is sequentially installed with an input gear 1 2072, an input gear 2073, a fixed sleeve rod 2075 and an input gear 3 2074. The two sides of the fixed sleeve rod 2075 are installed with limit blocks 2076 located outside the rod 2071. The inner wall of the gearbox housing 201 is installed with an output gear assembly 208 corresponding to the input gear assembly 207. The output gear assembly 208 includes a rod 3 2081. The rod 3 2081 is sequentially installed with an output gear 3 2084, a fixed sleeve rod 3 2085, an output gear 2 2083, an output gear 1 2082 and 2087, the two sides of the fixed sleeve rod 3 2085 are equipped with limit blocks 3 2086 located outside the rod 3 2081, the edge of 2087 is meshed with the material conveying chain 408, the sum of the diameter of the input gear 1 2072 and the diameter of the speed gear 1 2063, the sum of the diameter of the input gear 2 2073 and the diameter of the speed gear 2 2064, the sum of the diameter of the input gear 3 2074 and the diameter of the speed gear 3 2065, the sum of the diameter of the output gear 3 2084 and the diameter of the speed gear 4 2066, the sum of the diameter of the output gear 2 2083 and the diameter of the speed gear 5 2067, and the sum of the diameter of the output gear 1 2082 and the diameter of the speed gear 6 2068 are the same; What needs to be further explained in this embodiment is that by setting two limit blocks three 2086, the fixed sleeve rod three 2085 is limited from deflecting during the movement, by setting two limit blocks two 2076, the fixed sleeve rod two 2075 is limited from deflecting during the movement, and by setting two limit blocks one 2062, the rack connecting rod ball bearing 2053 is limited from deflecting during the movement. When the input gear one 2072 is meshed with the speed gear one 2063, the output gear one 2082 is also meshed with the speed gear six 2068. In addition, the ratio of the horizontal distance value between the input gear two 2073 and the speed gear two 2064 to the horizontal distance value between the speed gear three 2065 and the input gear three 2074 is 1:2, and the ratio of the horizontal distance value between the output gear two 2083 and the speed gear five 2067 to the horizontal distance value between the output gear three 2084 and the speed gear four 2066 is 1:2.

[0019] Working principle of the present invention: First, according to the shape of the material to be transported, pull the two chain connecting plates 1031 to buckle them to the buckle 1041 on the vibration plate 104, and at the same time, the chain 103 drives the winch 107 to Figure 8 As shown, the end of the block 1075 is engaged with the ratchet 1073 under the action of the spring tube 1076, and the capstan link 105 is driven to rotate. At the same time, the capstan gear 108 drives the disc gear 202 to rotate clockwise, and the output is transmitted to the reduction box output gear 204 through the gear box 203 to make it rotate counterclockwise, driving the rack 2051 to rotate as shown. Fig.12 As shown, the left side moves two unit distances, and the rack 2051 also drives the speed change gear assembly 206 to move two unit distances to the left side. At this time, the speed change gear 4 2066 is connected to the output gear 3 2084, and the speed change gear 3 2065 is connected to the input gear 3 2074, completing the three-stage transmission state speed change; Then the equipment is started, and the power output by the motor 3 is transmitted to the output gear assembly 208 through the input gear assembly 207 and the speed change gear assembly 206, and the material conveying chain 408 is driven by 2087 along the Figure 1 The scraper 4081 rotates counterclockwise as shown, and the scraper 4081 continuously collides with the contact head 4031 during the rotation, so that the vibration lever 403 moves back and forth between the limit blocks 4011 under the action of the reset spring 404, and also drives the vibration plate 104 to move left and right through the connecting block base 405, the vibration connecting rod 406 and the connecting block 407. When the vibration plate 104 moves, it also drives the chain connecting plate 1031 and the chain 103 to move left and right through the buckle 1041, so as to screen the materials to be transported, and the screened materials are driven by the material conveying chain 408 and transported to the discharge port 5; According to the shape of the material to be transported, if the material shape is large, a chain connecting plate 1031 can be pulled to repeat the above steps to drive the rack 2051 to move to the Fig.12 As shown, the left side moves a unit distance, and the rack 2051 also drives the speed change gear assembly 206 to move a unit distance to the left side. At this time, the speed change gear 5 2067 is connected to the output gear 2 2083, and the speed change gear 2 2064 is connected to the input gear 2 2073, completing the secondary transmission state speed change; If the material state is larger, the chain connecting plate 1031 may not be pulled. At this time, it is a primary transmission state, that is, an initial state. The speed change gear six 2068 and the output gear one 2082 are connected, and the speed change gear one 2063 and the input gear one 2072 are connected. Only the cross bar 102 is used to screen the material. The screened material is driven by the material conveying chain 408 and conveyed to the discharge port 5. At this point, all the working steps are completed.

[0020] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An O-type scraper conveyor capable of conveying different materials, characterized in that: It comprises a feed inlet mechanism (1), the left and right sides of the feed inlet mechanism (1) are respectively connected to material conveying mechanisms (4), a gearbox (2) is installed in the middle of the material conveying mechanism (4), a motor (3) is installed on the front of the gearbox (2), and the other ends of the two material conveying mechanisms (4) are installed with a discharge port (5) located directly above the feed inlet mechanism (1); The material conveying mechanism (4) comprises a conveying channel housing (401), the top surface of which is sequentially mounted with a return spring (404), a vibration lever base (402) and a limit block four (4011), the number of the vibration lever bases (402) being two, a vibration lever (403) being mounted between the two vibration lever bases (402) via a cross bar, the limit block four (4011) being located at the bottom of the side surface between the two vibration lever bases (402), one side of the top of the vibration lever (403) being fixedly connected to the other end of the return spring (404), the vibration lever (403) being fixedly connected to the other end of the return spring (404), and the vibration lever (403) being fixedly connected to the other end of the return spring (404). ) is installed at the top of a connecting block base (405), a connecting block (407) is installed at the top of the connecting block base (405) via a vibrating connecting rod (406), a material conveying chain (408) is installed inside the conveying channel housing (401), a scraper (4081) is installed on the side of the material conveying chain (408) away from the conveying channel housing (401), the bottom of the vibrating lever (403) passes through the conveying channel housing (401) and is installed with a contact head (4031), the length of the contact head (4031) is the same as the vertical distance between the scraper (4081) and the inner wall of the conveying channel housing (401).

2. The O-type scraper conveyor capable of conveying different materials according to claim 1, characterized in that: The feed port mechanism (1) comprises a feed port housing (101), a cross bar (102) and a chain (103) are installed on the top of the feed port housing (101), the cross bar (102) and the chain (103) are in a vertically staggered state, a worm spring box (106) is installed at both ends of one side of the feed port housing (101), a capstan connecting rod (105) is installed between the two worm spring boxes (106), one end of the chain (103) passes through the inner wall of the feed port housing (101) and is fixedly connected to a capstan connecting rod (105) located outside the capstan connecting rod (105). A capstan (107) is provided at the capstan (1071), the capstan (107) comprising a capstan side shell (1071), a capstan inner shell (1072) is provided on the outside of the capstan connecting rod (105), the outside of the capstan inner shell (1072) is fixedly connected to the inner wall of the capstan side shell (1071), a ratchet (1073) located inside the capstan inner shell (1072) is installed on the outside of the capstan connecting rod (105), and a clamping block (1075) located on the inner circle of the capstan inner shell (1072) is installed on the inner wall of the capstan side shell (1071) via a movable rod (1074).

3. The O-type scraper conveyor capable of conveying different materials according to claim 2, characterized in that: A spring cylinder (1076) adapted to the block (1075) is installed inside the capstan inner shell (1072); the edge gear of the ratchet wheel (1073) is adapted to the size of the block (1075); a capstan gear (108) is installed between the end of the capstan connecting rod (105) and the spiral spring box (106); a vibration plate (104) is installed on the other side of the feed port shell (101); one side of the connecting block (407) is connected to one side of the vibration plate (104); The vibration plate (104) is fixedly connected to the other side, and a chain connecting plate (1031) is detachably mounted on the other side of the vibration plate (104) via a buckle (1041). The number of the chain connecting plates (1031) is two, and the horizontal heights of the two chain connecting plates (1031) are different. The number of the chains (103) is eight, and the eight chains (103) are divided into two groups of four. The ends of each group of chains (103) are equidistantly mounted on the side of the chain connecting plate (1031).

4. The O-type scraper conveyor capable of conveying different materials according to claim 1, characterized in that: The gearbox (2) comprises a gearbox housing (201), a gear box (203) being installed inside the gearbox housing (201), a disc gear (202) being installed on the input shaft of the gearbox (203), the disc gear (202) being located outside the gearbox housing (201), the edge of the disc gear (202) being meshed with the edge of the capstan gear (108), and a reduction box output gear (204) being installed on the output shaft of the gearbox (203), the reduction box output gear (204) being installed on the output shaft of the gearbox (203). 4) is meshed with a rack mechanism (205), the rack mechanism (205) comprising a rack (2051), a rack connecting rod (2052) being mounted on the top of the rack connecting rod (2051), a rack connecting rod ball bearing (2053) being mounted on the top of the rack connecting rod (2052), a speed change gear assembly (206) being sleeved inside the rack connecting rod ball bearing (2053), and the speed change gear assembly (206) comprising a rod 1 (2061) sleeved on the inner wall of the gearbox housing (201).

5. The O-type scraper conveyor capable of conveying different materials according to claim 4, characterized in that: The outside of the rod one (2061) is sequentially mounted with a speed gear one (2063), a speed gear two (2064), a speed gear three (2065), a limit block one (2062), a speed gear four (2066), a speed gear five (2067), a fixed sleeve rod one (2069) and a speed gear six (2068); the output shaft of the motor (3) is mounted with an input gear assembly (207) via a reduction gear box; the input gear assembly (207) comprises a rod two (2071); the outside of the rod two (2071) is sequentially mounted with an input gear one (2072), an input gear two (2073), a fixed sleeve rod two (2075) and an input gear three (2074).

6. The O-type scraper capable of conveying different materials according to claim 5, characterized in that: The two sides of the fixed sleeve rod 2 (2075) are provided with stop blocks 2 (2076) located outside the rod 2 (2071); the inner wall of the gearbox housing (201) is provided with an output gear assembly (208) corresponding to the input gear assembly (207); the output gear assembly (208) comprises a rod 3 (2081); the rod 3 (2081) is provided with an output gear 3 (2084), a fixed sleeve rod 3 (2085), an output gear 2 (2083), an output gear 1 (2082) and (2087) in sequence; the two sides of the fixed sleeve rod 3 (2085) are provided with stop blocks 3 (2086) located outside the rod 3 (2081); the edge of the (2087) is meshed with the material conveying chain (408).

7. The O-type scraper conveyor capable of conveying different materials according to claim 5, characterized in that: The sum of the diameter of the input gear one (2072) and the diameter of the speed gear one (2063), the sum of the diameter of the input gear two (2073) and the diameter of the speed gear two (2064), the sum of the diameter of the input gear three (2074) and the diameter of the speed gear three (2065), the sum of the diameter of the output gear three (2084) and the diameter of the speed gear four (2066), the sum of the diameter of the output gear two (2083) and the diameter of the speed gear five (2067), and the sum of the diameter of the output gear one (2082) and the diameter of the speed gear six (2068) are the same.

8. The O-type scraper conveyor capable of conveying different materials according to claim 7, characterized in that: When input gear one (2072) is meshed with speed gear one (2063), output gear one (2082) is also meshed with speed gear six (2068). In addition, the ratio of the horizontal distance value between input gear two (2073) and speed gear two (2064) to the horizontal distance value between speed gear three (2065) and input gear three (2074) is 1:2, and the ratio of the horizontal distance value between output gear two (2083) and speed gear five (2067) to the horizontal distance value between output gear three (2084) and speed gear four (2066) is 1:2.

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