Energy-saving coal mining and collecting device
By integrating walking, intermittent mining and real-time collection into a mechanical linkage design, the problem of insufficient flexibility and high energy consumption of traditional coal mining equipment is solved, realizing efficient and automated coal mining and collection, which is suitable for thin coal seams, coal pillar recovery and small mines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- EASTERN GANSU UNIVERSITY
- Filing Date
- 2026-01-27
- Publication Date
- 2026-04-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional coal mining equipment is inflexible, energy-intensive, and complex to control. Furthermore, the mining and collection functions are separated, resulting in high equipment costs and low efficiency, making it difficult to apply efficiently in thin coal seams, coal pillar recovery, and small mines.
Design an energy-saving coal mining and collection device that integrates walking, intermittent mining and instant collection functions. It achieves single-motor drive through mechanical linkage, adopts alternating working outer and inner mining claws to improve crushing efficiency, and integrates mining and collection into a single mobile vehicle.
It enables highly efficient and automated operation of the equipment, reduces energy consumption, improves mining efficiency, avoids entanglement and blockage, reduces the number of devices and space occupation, and is suitable for use in underground roadways with limited space.
Smart Images
Figure CN121897341A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of coal mining technology, and in particular to an energy-saving coal mining and collection device. Background Technology
[0002] Coal is a vital resource for my country's industrial development and social needs, and its mining efficiency and cost directly impact the country's energy supply and economic growth. In coal mining, especially in specific conditions such as thin coal seam mining, coal pillar or residual coal recovery, roadway maintenance, and small-scale mine operations, traditional large-scale fully mechanized mining equipment often suffers from insufficient flexibility, high energy consumption, and large investment costs. Therefore, there is an urgent need to develop a compact, mobile, energy-efficient, and compact small-to-medium-sized coal mining and collection device. Currently, some existing mobile mining equipment typically adopts a completely independent drive mode for walking, conveying, and mining operations. This design requires two drive systems to operate simultaneously, resulting in high overall energy consumption, which contradicts the trend of green and energy-saving industrial development. Furthermore, the equipment needs to precisely coordinate walking and mining actions during movement; otherwise, sudden load changes, mechanical jamming, or power redundancy can easily occur, increasing the complexity and cost of the control system and reducing reliability. In addition, the walking and mining actions of most equipment are difficult to achieve efficient automated coordinated cycles, and cannot automatically complete the continuous operation of "walking-intermittent mining-collecting while walking". On the other hand, the functional design of many equipment is too simple, focusing on mining itself, and failing to integrate the function of preliminary collection and transportation of coal after mining. It often requires additional equipment, which increases the number of operation links, equipment costs and space occupation.
[0003] More importantly, traditional mining heads often employ a single rotary cutting method, which is prone to entanglement or blockage when dealing with highly viscous or lumpy coals, resulting in limited crushing effectiveness and hindering subsequent transportation and processing. Therefore, this invention provides an energy-saving coal mining and collection device that integrates walking, intermittent high-efficiency mining, and real-time collection functions to solve the aforementioned technical problems. Summary of the Invention
[0004] To address the aforementioned technical problems, the present invention adopts the following technical solution: an energy-saving coal mining and collection device, comprising a vehicle body structure, on which a coal mining mechanism and a collection mechanism are provided; The vehicle body mechanism includes a frame, a slide table slidably mounted on the frame, a driven wheel axle rotatably mounted on the frame, two driven wheels fixedly mounted on the driven wheel axle, and a lower bevel gear rotatably mounted on the slide table; A drive axle is located under the frame, and two drive wheels are fixedly mounted on the drive axle. A moving belt is wound around the drive wheels and driven wheels. A moving motor is fixedly mounted on the frame, and a motor wheel is fixedly mounted on the motor shaft of the moving motor. The motor wheel drives the drive axle to rotate through the output belt. Two eccentric turntables are rotatably mounted on the frame. Transmission gears are fixedly mounted on the eccentric turntables. The drive wheel shaft drives the eccentric turntables to rotate through the inclined conveyor belt. An eccentric rotating rod is eccentrically mounted on the eccentric turntable. A reciprocating slide is slidably mounted on the frame. The eccentric rotating rod is rotatably mounted with the reciprocating slide, and the reciprocating slide is fixedly mounted with the slide table. A docking turntable is rotatably mounted on the slide platform, and a docking gear is fixed below the docking turntable. A slide groove is provided on the frame, and a sliding sleeve is slidably mounted in the slide groove. A sliding motor frame is slidably mounted on the frame, and a retaining spring is provided between the sliding motor frame and the frame. A working motor is fixedly mounted on the sliding motor frame, and the motor shaft of the working motor is rotatably connected to the sliding sleeve. An input gear is fixedly mounted on the motor shaft of the working motor. The docking turntable is connected to the lower bevel gear through multiple universal joints, and the lower bevel gear is connected to the coal mining mechanism.
[0005] Furthermore, the coal mining mechanism includes a mining frame fixedly installed on a slide table, an upper bevel gear rotatably installed on the mining frame, the upper bevel gear meshing with a lower bevel gear, two outer gears rotatably installed on the mining frame, the upper bevel gear driving the outer gears to rotate via a transverse transmission belt, a toothed inner gear ring rotatably installed on the mining frame, and an intermediate gear fixedly installed below the toothed inner gear ring, the intermediate gear meshing with the outer gears. An outer worm and an inner worm are rotatably mounted on the mining frame. An outer gear is fixedly mounted on the outer worm, and an inner gear is fixedly mounted on the inner worm. When the missing tooth inner gear ring meshes with the outer gear, the missing tooth inner gear ring does not mesh with the inner gear. When the missing tooth inner gear ring meshes with the inner gear, the missing tooth inner gear ring does not mesh with the outer gear. An inner shaft is rotatably mounted on the mining frame, an outer worm gear is fixedly mounted on the inner shaft, and multiple outer mining claws are provided on the inner shaft. An outer sleeve is rotatably mounted outside the inner shaft, an inner worm gear is fixedly mounted on the outer sleeve, and multiple inner mining claws are provided on the outer sleeve. The outer worm meshes with the outer worm gear, the inner worm meshes with the inner worm gear, and the outer and inner mining claws are arranged alternately.
[0006] Furthermore, the collection mechanism includes an inner hopper fixedly mounted on the frame, an inclined ramp on the inner hopper, a spiral conveying shaft rotatably mounted on the inner hopper, two spiral blades with opposite thread directions on the spiral conveying shaft, two output ports on the inner hopper, and a transmission wheel fixedly mounted on the spiral conveying shaft. The driven wheel shaft drives the transmission wheel to rotate through a conveyor belt.
[0007] The advantages of this invention compared to the prior art are: (1) The vehicle body mechanism of this invention uses the power of the mobile motor to drive the device's movement and control the intermittent start and stop of the coal mining mechanism. The device only starts the working motor to mine when the slide table slides to a specific position and the mating gear meshes with the input gear. During the movement, the two disengage and mining stops. The intermittent operation mode avoids the continuous simultaneous operation of the high-power walking and mining motors, which significantly reduces the overall energy consumption of the equipment. At the same time, the mobile motor stops rotating during mining. Through mechanical linkage, a single motor is used to drive the movement and mining in a coordinated manner, which further saves energy and demonstrates excellent energy-saving characteristics. (2) This invention realizes full-process automation from movement, positioning, mining to collection. The movement and mining actions are automatically connected through the mechanical structure without the need for complex electronic control intervention. The device can automatically and periodically complete precise mining operations during continuous movement, reducing the time required for frequent start and stop of equipment or manual intervention for positioning in the past. This makes mining operations smoother and more efficient, significantly improving overall work efficiency and better meeting the needs of harsh underground coal mining environments; (3) The coal mining mechanism set up in this invention adopts an alternating working mode of external mining claws and internal mining claws. The two mining claws cycle and alternate, impacting and excavating the coal with different trajectories. This alternating action not only improves the coal breaking efficiency per unit time, but also effectively breaks up large pieces of coal, avoiding the entanglement or blockage problems that may be caused by continuous cutting with a single tool, creating favorable conditions for subsequent transportation; (4) This invention integrates the coal mining mechanism and the collection mechanism into a mobile vehicle body. The mined coal falls directly into the built-in inner hopper and is output in time through the spiral conveying shaft driven by the walking power, so that the equipment can immediately collect and transport the coal while completing mining, eliminating the need for independent collection and transfer links and equipment. It is particularly suitable for use in underground roadways with limited space, greatly enhancing the applicability and functionality of the equipment. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the vehicle body structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the vehicle body structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the coal mining mechanism of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the coal mining mechanism of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the coal mining mechanism of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the coal mining mechanism of the present invention. Figure 4 ; Figure 8 This is a schematic diagram of the collection mechanism structure of the present invention. Figure 1 ; Figure 9 This is a schematic diagram of the collection mechanism structure of the present invention. Figure 2 ; Figure 10 This is a side view of the overall structure of the present invention; Figure 11 This is a diagram showing the connection relationship between components 205 and 206.
[0009] Reference numerals: 101-Frame; 102-Driving wheel; 103-Driven wheel; 104-Moving belt; 105-Moving motor; 106-Motor wheel; 107-Output belt; 108-Driven wheel axle; 109-Eccentric turntable; 110-Eccentric rotating rod; 111-Inclined conveyor belt; 112-Transmission gear; 113-Reciprocating carriage; 114-Working motor; 115-Sliding motor frame; 116-Fitting spring; 117-Slide groove; 118-Sliding sleeve; 119-Input gear; 120-Slide table; 121-Dating turntable; 122-Dating gear; 1 23-Lower bevel gear; 124-Drive wheel shaft; 201-Mining frame; 202-Upper bevel gear; 203-Horizontal transmission belt; 204-Outer gear; 205-Inner toothed ring gear; 206-Intermediate gear; 207-Outer worm; 208-Inner worm; 209-Inner mining claw; 210-Outer mining claw; 211-Outer worm wheel; 212-Inner worm wheel; 213-Inner shaft; 214-Outer sleeve rod; 215-Outer gear; 216-Inner gear; 301-Inner connecting bucket; 302-Screw conveyor shaft; 303-Transmission wheel; 304-Outlet; 305-Conveyor belt. Detailed Implementation
[0010] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.
[0011] Example: Reference Figures 1-11 An energy-saving coal mining and collection device includes a vehicle body structure, on which a coal mining mechanism and a collection mechanism are mounted. The vehicle body mechanism includes a frame 101, a slide table 120 slidably mounted on the frame 101, a driven wheel axle 108 rotatably mounted on the frame 101, two driven wheels 103 fixedly mounted on the driven wheel axle 108, and a lower bevel gear 123 rotatably mounted on the slide table 120.
[0012] A drive axle 124 is provided below the frame 101. Two drive wheels 102 are fixedly installed on the drive axle 124. A moving belt 104 is wound around the drive wheels 102 and driven wheels 103. A moving motor 105 is fixedly installed on the frame 101. A motor wheel 106 is fixedly installed on the motor shaft of the moving motor 105. The motor wheel 106 drives the drive axle 124 to rotate through the output belt 107.
[0013] Two eccentric turntables 109 are rotatably mounted on the frame 101. A transmission gear 112 is fixedly mounted on the eccentric turntable 109. The drive wheel shaft 124 drives the eccentric turntable 109 to rotate through the inclined conveyor belt 111. An eccentric rotating rod 110 is eccentrically rotatably mounted on the eccentric turntable 109. A reciprocating slide 113 is slidably mounted on the frame 101. The eccentric rotating rod 110 and the reciprocating slide 113 are rotatably mounted together. The reciprocating slide 113 is fixedly mounted on the slide table 120.
[0014] A docking turntable 121 is rotatably mounted on a slide table 120. A docking gear 122 is fixed below the docking turntable 121. A slide groove 117 is provided on the frame 101. A sliding sleeve 118 is slidably mounted in the slide groove 117. A sliding motor frame 115 is slidably mounted on the frame 101. A retaining spring 116 is provided between the sliding motor frame 115 and the frame 101. A working motor 114 is fixedly mounted on the sliding motor frame 115. The motor shaft of the working motor 114 is rotatably connected to the sliding sleeve 118. An input gear 119 is fixedly mounted on the motor shaft of the working motor 114. The docking turntable 121 is connected to a lower bevel gear 123 through multiple universal joints. The lower bevel gear 123 is connected to a coal mining mechanism.
[0015] The mobile motor 105 drives the motor wheel 106 to rotate, which in turn drives the drive wheel shaft 124 and drive wheel 102 to rotate via the output belt 107. The drive wheel 102 drives the driven wheel 103 and driven wheel shaft 108 to rotate via the moving belt 104. The rotation of the drive wheel 102 and driven wheel 103 causes the device to move forward. The drive wheel shaft 124 drives the transmission gear 112 and eccentric turntable 109 to rotate via the inclined conveyor belt 111. The eccentric turntable 109 drives the eccentric rotating rod 110 to rotate eccentrically, thereby driving the reciprocating slide 113 and slide table 120 to slide back and forth along the frame 101. When the slide table 120 slides towards the inner bucket 301, it drives the docking turntable 121 and docking gear 122 to move towards the input gear 119. When the docking gear 122 meshes with the input gear 119, the working motor 114 drives the input gear 119 to rotate. The input gear 119 drives the docking gear 122 and... The docking turntable 121 rotates, driving the lower bevel gear 123 to rotate through multiple universal joints. The spring 116 keeps the input gear 119 and the docking gear 122 tightly meshed. At this time, the moving motor 105 stops rotating and mining begins. After one mining cycle is completed, the moving motor 105 continues to rotate, driving the drive wheel 102 and the driven wheel 103 to rotate, and the frame 101 continues to move forward. At this time, the reciprocating slide 113 and the slide table 120 retract, causing the docking gear 122 to disengage from the input gear 119. Mining does not occur at this time. As the drive wheel 102 and the driven wheel 103 rotate, the frame 101 moves forward. At this time, the slide table 120 and the reciprocating slide 113 slide back and forth. When the docking gear 122 meshes with the input gear 119 again, mining begins again. This process is repeated to achieve mining once for each step forward. When the frame 101 moves, it transports the coal.
[0016] like Figures 4-7 , Figure 11 As shown, the coal mining mechanism includes a mining frame 201 fixedly installed on a slide table 120. An upper bevel gear 202 is rotatably installed on the mining frame 201, and the upper bevel gear 202 meshes with a lower bevel gear 123. Two outer gears 204 are rotatably installed on the mining frame 201. The upper bevel gear 202 drives the outer gears 204 to rotate through a transverse transmission belt 203. A toothed internal gear ring 205 is rotatably installed on the mining frame 201. An intermediate gear 206 is fixedly installed below the toothed internal gear ring 205, and the intermediate gear 206 meshes with the outer gears 204.
[0017] An outer worm gear 207 and an inner worm gear 208 are rotatably mounted on the mining frame 201. An outer gear 215 is fixedly mounted on the outer worm gear 207, and an inner gear 216 is fixedly mounted on the inner worm gear 208. When the toothless inner gear ring 205 meshes with the outer gear 215, the toothless inner gear ring 205 does not mesh with the inner gear 216. When the toothless inner gear ring 205 meshes with the inner gear 216, the toothless inner gear ring 205 does not mesh with the outer gear 215.
[0018] An inner shaft 213 is rotatably mounted on the mining frame 201. An outer worm gear 211 is fixedly mounted on the inner shaft 213. Multiple outer mining claws 210 are provided on the inner shaft 213. An outer sleeve rod 214 is rotatably mounted on the inner shaft 213. An inner worm gear 212 is fixedly mounted on the outer sleeve rod 214. Multiple inner mining claws 209 are provided on the outer sleeve rod 214. The outer worm 207 meshes with the outer worm gear 211, and the inner worm 208 meshes with the inner worm gear 212. The outer mining claws 210 and inner mining claws 209 are arranged alternately.
[0019] During mining, the operating motor 114 drives the input gear 119 to rotate. The input gear 119 drives the docking gear 122 and the docking turntable 121 to rotate. Through multiple universal joints, it drives the lower bevel gear 123 to rotate. The lower bevel gear 123 drives the upper bevel gear 202 to rotate. The upper bevel gear 202 drives the outer gear 204 to rotate through the transverse transmission belt 203. The outer gear 204 drives the middle gear 206 and the toothed internal gear ring 205 to rotate. When the toothed internal gear ring 205 meshes with the outer gear 215, it does not mesh with the inner gear 216. The toothed internal gear ring 205 drives the outer gear 215 and the outer worm gear 207 to rotate, which in turn drives the outer worm wheel 211, the inner shaft 213, and the outer mining claw 210 to rotate. The coal is extracted onto the inner hopper 301 by the outer mining claw 210. Then, when the toothed inner gear ring 205 meshes with the inner gear 216, it disengages from the outer gear 215. The toothed inner gear ring 205 drives the inner gear 216 and the inner worm gear 208 to rotate, which in turn drives the inner worm wheel 212, the outer rod 214, and the inner mining claw 209 to rotate. The coal is extracted onto the inner hopper 301 by the inner mining claw 209. The alternating mining by the inner mining claw 209 and the outer mining claw 210 improves mining efficiency and effectively breaks up some of the coal, which is beneficial for subsequent transportation. Then, the working motor 114 reverses, causing the inner mining claw 209 and the outer mining claw 210 to reset, thus completing one mining operation.
[0020] like Figure 8 , Figure 9 As shown, the collection mechanism includes an inner hopper 301 fixedly mounted on the frame 101. The inner hopper 301 is provided with a ramp. A screw conveyor shaft 302 is rotatably mounted on the inner hopper 301. The screw conveyor shaft 302 is provided with two helical blades with opposite thread directions. The inner hopper 301 is provided with two outlets 304. A transmission wheel 303 is fixedly mounted on the screw conveyor shaft 302. The driven wheel shaft 108 drives the transmission wheel 303 to rotate through the conveyor belt 305.
[0021] Driven wheel shaft 108 drives transmission wheel 303 and screw conveyor shaft 302 to rotate via conveyor belt 305. Coal mined into inner hopper 301 slides onto screw conveyor shaft 302 via ramp on inner hopper 301. Screw conveyor shaft 302 rotates to send mined coal out from output port 304. Output port 304 is connected to external collection pipe or collection box.
[0022] The working principle of the energy-saving coal mining and collection device disclosed in this invention is as follows: the moving motor 105 drives the motor wheel 106 to rotate, which drives the driving wheel shaft 124 and the driving wheel 102 to rotate through the output belt 107. The driving wheel 102 drives the driven wheel 103 and the driven wheel shaft 108 to rotate through the moving belt 104. The rotation of the driving wheel 102 and the driven wheel 103 causes the device to move forward. The driving wheel shaft 124 drives the transmission gear 112 and the eccentric turntable 109 to rotate through the inclined conveyor belt 111. The eccentric turntable 109 drives the eccentric rotating rod 110 to rotate eccentrically, thereby driving the reciprocating slide 113 and the slide table 120 to slide back and forth along the frame 101. When the slide table When 120 slides towards the inner bucket 301, it drives the docking turntable 121 and docking gear 122 to move towards the input gear 119. When the docking gear 122 meshes with the input gear 119, the working motor 114 drives the input gear 119 to rotate. The input gear 119 drives the docking gear 122 and the docking turntable 121 to rotate, and drives the lower bevel gear 123 to rotate through multiple universal joints. The clamping spring 116 keeps the input gear 119 and the docking gear 122 tightly meshed. At this time, the moving motor 105 stops rotating and mining begins. During mining, the working motor 114 drives the input gear 119 to rotate, and the input gear 119 drives the docking gear 122 to rotate. Gear 122 and docking turntable 121 rotate, driving lower bevel gear 123 to rotate via multiple universal joints. Lower bevel gear 123 drives upper bevel gear 202 to rotate. Upper bevel gear 202 drives outer gear 204 to rotate via transverse transmission belt 203. Outer gear 204 drives intermediate gear 206 and toothed internal gear ring 205 to rotate. When toothed internal gear ring 205 meshes with outer gear 215, it does not mesh with inner gear 216. Toothed internal gear ring 205 drives outer gear 215 and outer worm gear 207 to rotate, driving outer worm wheel 211, inner shaft 213 and outer mining claw 210 to rotate. The outer mining claw 210 then mines the coal to... On the inner hopper 301, when the toothed inner gear ring 205 meshes with the inner gear 216, the toothed inner gear ring 205 disengages from the outer gear 215. The toothed inner gear ring 205 drives the inner gear 216 and the inner worm 208 to rotate, which in turn drives the inner worm wheel 212, the outer rod 214, and the inner mining claw 209 to rotate. The coal is mined onto the inner hopper 301 by the inner mining claw 209. The alternating mining by the inner mining claw 209 and the outer mining claw 210 improves the mining efficiency and effectively breaks up some of the coal, which is beneficial for subsequent transportation. Then the operating motor 114 reverses, causing the inner mining claw 209 and the outer mining claw 210 to reset, thus completing one mining cycle.After one mining operation, the mobile motor 105 continues to rotate, driving the drive wheel 102 and driven wheel 103 to rotate, and the frame 101 continues to move forward. At this time, the reciprocating slide 113 and slide table 120 retract, causing the engagement gear 122 to disengage from the input gear 119. Mining does not occur at this time. As the drive wheel 102 and driven wheel 103 rotate, the frame 101 moves forward. At this time, the slide table 120 and reciprocating slide 113 slide back and forth. When the engagement gear 122 meshes with the input gear 119 again, mining begins again. This process is repeated to achieve mining once after each step forward. When the frame 101 moves, the driven wheel shaft 108 drives the transmission wheel 303 and the screw conveyor shaft 302 to rotate via the conveyor belt 305. The coal mined into the inner hopper 301 slides onto the screw conveyor shaft 302 via the ramp on the inner hopper 301. The screw conveyor shaft 302 rotates and sends the mined coal out from the output port 304. The output port 304 is connected to an external collection pipe or collection box.
Claims
1. An energy-saving coal mining and collection device, comprising a vehicle body mechanism, characterized in that, The vehicle body is equipped with coal mining and collection mechanisms; The vehicle body mechanism includes a frame (101), a slide (120) is slidably mounted on the frame (101), a driven wheel axle (108) is rotatably mounted on the frame (101), two driven wheels (103) are fixedly mounted on the driven wheel axle (108), and a lower bevel gear (123) is rotatably mounted on the slide (120). A drive wheel axle (124) is provided below the frame (101). Two drive wheels (102) are fixedly installed on the drive wheel axle (124). A moving belt (104) is wrapped around the drive wheels (102) and driven wheels (103). A moving motor (105) is fixedly installed on the frame (101). A motor wheel (106) is fixedly installed on the motor shaft of the moving motor (105). The motor wheel (106) drives the drive wheel axle (124) to rotate through the output belt (107). Two eccentric turntables (109) are rotatably mounted on the frame (101). A transmission gear (112) is fixedly mounted on the eccentric turntable (109). The drive wheel shaft (124) drives the eccentric turntable (109) to rotate through the inclined conveyor belt (111). An eccentric rotating rod (110) is eccentrically mounted on the eccentric turntable (109). A reciprocating slide (113) is slidably mounted on the frame (101). The eccentric rotating rod (110) is rotatably mounted on the reciprocating slide (113). The reciprocating slide (113) is fixedly mounted on the slide table (120). A docking turntable (121) is rotatably mounted on a slide table (120). A docking gear (122) is fixed below the docking turntable (121). A slide groove (117) is provided on the frame (101). A sliding sleeve (118) is slidably mounted in the slide groove (117). A sliding motor frame (115) is slidably mounted on the frame (101). A retaining spring (116) is provided between the sliding motor frame (115) and the frame (101). A working motor (114) is fixedly mounted on the sliding motor frame (115). The motor shaft of the working motor (114) is rotatably connected to the sliding sleeve (118). An input gear (119) is fixedly mounted on the motor shaft of the working motor (114). The docking turntable (121) is connected to the lower bevel gear (123) through multiple universal joints. The lower bevel gear (123) is connected to the coal mining mechanism.
2. The energy-saving coal mining and collection device as described in claim 1, characterized in that, The coal mining mechanism includes a mining frame (201) fixedly installed on a slide (120). An upper bevel gear (202) is rotatably installed on the mining frame (201), and the upper bevel gear (202) meshes with a lower bevel gear (123). Two outer gears (204) are rotatably installed on the mining frame (201). The upper bevel gear (202) drives the outer gears (204) to rotate through a transverse transmission belt (203). A toothed internal gear ring (205) is rotatably installed on the mining frame (201). An intermediate gear (206) is fixedly installed below the toothed internal gear ring (205), and the intermediate gear (206) meshes with the outer gears (204). An outer worm (207) and an inner worm (208) are rotatably mounted on the mining frame (201). An outer gear (215) is fixedly mounted on the outer worm (207), and an inner gear (216) is fixedly mounted on the inner worm (208). When the toothless inner gear ring (205) meshes with the outer gear (215), the toothless inner gear ring (205) does not mesh with the inner gear (216). When the toothless inner gear ring (205) meshes with the inner gear (216), the toothless inner gear ring (205) does not mesh with the outer gear (215). An inner shaft (213) is rotatably mounted on the mining frame (201). An outer worm gear (211) is fixedly mounted on the inner shaft (213). Multiple outer mining claws (210) are provided on the inner shaft (213). An outer sleeve rod (214) is rotatably mounted on the inner shaft (213). An inner worm gear (212) is fixedly mounted on the outer sleeve rod (214). Multiple inner mining claws (209) are provided on the outer sleeve rod (214). The outer worm (207) meshes with the outer worm gear (211), and the inner worm (208) meshes with the inner worm gear (212). The outer mining claws (210) and the inner mining claws (209) are arranged alternately.
3. The energy-saving coal mining and collection device as described in claim 1, characterized in that, The collection mechanism includes an inner hopper (301) fixedly mounted on a frame (101), an incline provided on the inner hopper (301), a spiral conveyor shaft (302) rotatably mounted on the inner hopper (301), two spiral blades with opposite thread directions provided on the spiral conveyor shaft (302), two output ports (304) provided on the inner hopper (301), a transmission wheel (303) fixedly mounted on the spiral conveyor shaft (302), and a driven wheel shaft (108) driving the transmission wheel (303) to rotate via a conveyor belt (305).