CN212396991U - Crossheading roller type screening, crushing and transferring device - Google Patents

Abstract

A crossheading roller type screening, crushing and transferring device relates to the technical field of coal mine underground mining conveying equipment, is connected with a reversed loader machine head and a belt conveyor tail, and comprises a screening device and a crushing device, wherein the screening device and the crushing device are both positioned right above the belt conveyor tail and are both positioned at the end part of the reversed loader machine head, and the reversed loader machine head, the screening device and the crushing device are sequentially connected; the crushing device comprises a scraper chain assembly, a groove body and a scraper chain power part. Breaker is from taking transport mechanism, the breakage is transported by breaker by oneself to the raw coal, screening plant directly sets up directly over the belt feeder tail, the fritter raw coal after the screening directly vertically passes screening plant and falls on the belt feeder tail and transport away, need not vertically pass the elevating conveyor again, make the scraper blade of elevating conveyor touch the fritter raw coal after the screening completely, also can not take place the fritter raw coal and by the broken condition of quadratic terms, when having the screening function, can also improve the lump coal rate relatively.

Description

Crossheading roller type screening, crushing and transferring device

Technical Field

The utility model relates to a colliery well worker exploitation conveying equipment technical field, concretely relates to crossheading roller formula screening breakage transfer device.

Background

The raw coal is unloaded to a reversed loader with a crusher through a scraper conveyor after being mined to be crushed and transferred, and then is unloaded to a belt conveyor, and because the sizes of the mined raw coal are different, the raw coal is not subjected to screening and separation but is completely crushed through the crusher, and when large blocks of raw coal are crushed, part of small blocks of raw coal are also crushed into foam coal through the crusher, so that the lump coal rate is greatly reduced.

According to the problem, in order to improve the lump coal rate, part of coal enterprises improve the crushing and transferring machine, a screening groove provided with screening holes is additionally arranged at the suspended section of the traditional transferring machine, the screening groove is sequentially connected with the crushing machine and is vertically arranged with the transferring machine and the belt conveyor in sequence, and a falling hole is formed in the groove body of the transferring machine positioned right below the screening groove. Therefore, the screening and crushing mode is as follows: the reversed loader conveys the raw coal to the screening groove, the large blocks of the raw coal move to the reversed loader close to the crusher along the screening groove, and the reversed loader conveys the large blocks of the raw coal to the position right below the crusher for crushing; after passing through the screening grooves and the falling holes, the small pieces of raw coal fall on the belt conveyor, so that the purposes of screening and separating the raw coal and crushing the screened large pieces of raw coal are achieved, and the mode obviously improves the lump coal rate compared with the mode before improvement.

However, the scraper chain of the reversed loader is always in closed-loop operation, when small pieces of raw coal fall to be close to a falling hole, the scraper of the scraper chain may impact the small pieces of raw coal, and the small pieces of raw coal are subjected to secondary shearing crushing, which also causes the loss of lump coal rate.

Disclosure of Invention

In view of the above, there is a need to provide a gate-roller type screening, crushing and transferring device which has a screening function and can realize crushing and transferring of large raw coals without relying on a transfer conveyor.

A crossheading roller type screening, crushing and transferring device is connected with a reversed loader machine head and a belt conveyor tail and comprises a screening device and a crushing device, wherein the screening device and the crushing device are both positioned right above the belt conveyor tail and at the end part of the reversed loader machine head, and the reversed loader machine head, the screening device and the crushing device are sequentially connected; the crushing device comprises a scraper chain assembly, a groove body and a scraper chain power part, wherein the scraper chain assembly is positioned on the upper part of the groove body and is driven by the scraper chain power part to move so as to drive raw coal on the groove body to move.

Preferably, the screening device comprises a driver, a roller and screen pieces, the driving end of the driver is fixedly connected with the central shaft of the roller to drive the roller to rotate, so as to drive raw coal on the roller to move, the roller and the screen pieces are both provided with a predetermined number, and each roller is provided with a predetermined number of screen pieces.

Preferably, screening plant still includes support frame, baffle, and the driver is fixed on the support frame, and the roller bearing rotates with the baffle to be connected, and the baffle is two, and vertical setting is in the relative both sides of support frame respectively, and support frame, cell body all are connected with the belt feeder tail to make support frame and cell body all can remove along the length direction of belt feeder tail, and then make screening plant and breaker all can remove along the length direction of belt feeder tail, the support frame is the support body of bottom fretwork.

Preferably, the head of the reversed loader comprises an inlet guide plate and a reversed loader trolley, wherein the inlet guide plate is arranged close to the rolling shaft; screening plant is still including advancing the telescopic link, the one end and the support frame of advancing the telescopic link are connected, the other end is connected with the elevating conveyor dolly, it removes along the direction of keeping away from the elevating conveyor dolly to advance the telescopic link with the extension, shorten and advance the telescopic link and drive the support frame and remove along the direction of being close to the elevating conveyor dolly, and then realize that the extension advances the telescopic link and drive screening plant and breaker and remove along the direction of keeping away from the elevating conveyor dolly, shorten and advance the telescopic link and drive screening plant and breaker and remove along the direction of being close to the elevating conveyor dolly.

Preferably, the screening plant still includes the export stock guide, the protection curb plate, the buffering gusset plate, the guide swash plate, the export stock guide is located between roller bearing and the breaker, and be close to the roller bearing setting, the relative both ends of export stock guide respectively with two baffle fixed connection, the protection curb plate is located between baffle and the breaker, and the one end and the baffle of protection curb plate are connected, the buffering gusset plate is located under the roller bearing, and the buffering gusset plate is fixed on the support frame, the guide swash plate transversely is located between roller bearing and the elevating conveyor dolly, vertically is located the top of buffering gusset plate, and the guide swash plate is connected with the support frame.

Preferably, the crushing device further comprises a crushing assembly, the crushing assembly is fixed on the groove body, the crushing assembly comprises a crushing cover, a crushing power part, a transmission belt, a crushing shaft group, a crushing hammer, an adjusting cushion block and a lifting oil cylinder, the crushing cover is positioned above the groove body and fixed on the groove body, the output end of the crushing power part is fixedly connected with the transmission belt, the transmission belt is fixedly connected with the crushing shaft group so as to drive the crushing shaft group to rotate through the crushing power part, two ends of the crushing shaft group are positioned outside the crushing cover, the middle part of the crushing shaft group is positioned inside the crushing cover, the crushing hammer is fixed in the middle part of the crushing shaft group and positioned inside the crushing cover, the crushing shaft group rotates to drive the crushing hammer to rotate, the adjusting cushion block and the lifting oil cylinder are positioned outside the crushing cover and below the crushing shaft group, one end of the adjusting cushion block is connected with the end part of the crushing, the other end of the lifting oil cylinder is connected with the groove body, the lifting oil cylinder is perpendicular to the crushing shaft group, the distance between the crushing hammer and the groove body is adjusted through adjusting the lifting oil cylinder, and then the crushing granularity of raw coal is adjusted.

Preferably, breaker still includes telescopic link, telescopic baffle, flexible bottom plate, and the one end and the cell body of telescopic link are connected, the other end and telescopic baffle are connected, and the vertical setting of telescopic baffle is on telescopic bottom plate, and telescopic bottom plate's one end is connected with the one end of cell body, and telescopic link is flexible to drive telescopic bottom plate extension or is shortened.

Preferably, the crushing device further comprises a machine head pressing block and a machine tail pressing block, the machine head pressing block is connected with the telescopic baffle, is positioned at one end of the telescopic bottom plate and is far away from the groove body, and the machine tail pressing block is connected with the other end of the groove body and is far away from the telescopic bottom plate; scrape the chain subassembly and include aircraft nose sprocket shaft group, tail sprocket shaft group, the scraper blade, the chain, scrape the output and aircraft nose sprocket shaft group or tail sprocket shaft group fixed connection of chain power portion, aircraft nose sprocket shaft group rotates with the aircraft nose briquetting to be connected, tail sprocket shaft group rotates with the tail briquetting to be connected, the chain forms the closed loop around aircraft nose sprocket shaft group and tail sprocket shaft group, the scraper blade is provided with predetermined quantity and evenly distributed on the chain, scraper blade and chain all are located the top of cell body and flexible bottom plate, in order to drive the raw coal removal on cell body and the flexible bottom plate.

Preferably, the tank body is closed at the top and open at the bottom.

The utility model adopts the above technical scheme, its beneficial effect lies in: breaker is from taking transport mechanism, the breakage is transported by breaker by oneself to the raw coal, make breaker need not be located the elevating conveyor directly over, thereby make the scraper chain of elevating conveyor not need transversely pass screening plant under, screening plant directly sets up directly over the belt feeder tail, the fritter raw coal after the screening directly vertically passes screening plant and falls away on the belt feeder tail, do not vertically pass the elevating conveyor again, make the fritter raw coal after the screening of scraper blade complete touching of elevating conveyor, also can not take place the fritter raw coal by the broken condition of secondary shearing, when having the screening function, can also improve lump coal rate relatively.

Drawings

Fig. 1 is a schematic structural diagram of the gate-groove roller type screening, crushing and transferring device matched with a reversed loader machine head and a belt conveyor tail.

Fig. 2 is a schematic view of another angle structure of fig. 1.

Fig. 3 is a schematic view of a further angle in fig. 1.

Fig. 4 is a schematic structural view of the sieving device, an inlet guide plate and a reversed loader trolley.

Fig. 5 is a schematic structural diagram of the screening device except for the baffle and the protective side plate.

Fig. 6 is a schematic structural view of the crushing apparatus.

In the figure: the device comprises an in-groove roller type screening, crushing and transferring device 10, a screening device 11, a driver 1101, rollers 1102, screen sheets 1103, a support frame 1104, a baffle 1105, a pushing and stretching rod 1106, a limiting connecting rod 1107, an outlet guide plate 1108, a protective side plate 1109, a buffering reinforcing plate 1110, a guide sloping plate 1111, an elastic pin tooth type coupling 1112 for rollers, a crushing device 12, a head sprocket shaft group 12011, a tail sprocket shaft group 12012, a scraper 12013, a chain 12014, a groove 1202, a scraper chain power part 1203, a crushing cover 12041, a crushing power part 12042, a crushing shaft group 12043, an adjusting cushion block 12044, a lifting oil cylinder 12045, a belt shield 12046, a stretching rod 1205, a stretching and stretching baffle 1206, a stretching bottom plate 1207, a head briquetting 1208, a tail briquetting 1209, a head coal collecting plate 1210, a head 20, an inlet guide plate 21, a transfer conveyor trolley 22 and a conveyor tail 30.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1 to 3 and 6, an embodiment of the present invention provides a gate roller 1102 type screening, crushing and transferring device 10, which is connected to a head 20 of a reversed loader and a tail 30 of a belt conveyor, and includes a screening device 11 and a crushing device 12, both of which are located right above the tail 30 of the belt conveyor and located at an end of the head 20 of the reversed loader, and the head 20 of the reversed loader, the screening device 11 and the crushing device 12 are sequentially connected; the crushing device 12 comprises a scraper chain assembly, a trough body 1202 and a scraper chain power part 1203, wherein the scraper chain assembly is located at the upper part of the trough body 1202 and is driven by the scraper chain power part 1203 to move so as to drive raw coal on the trough body 1202 to move.

Referring to fig. 4 and 5, further, the screening device 11 includes a driver 1101, a roller 1102, and screen sheets 1103, a driving end of the driver 1101 is fixedly connected to a central axis of the roller 1102 through an elastic pin gear coupling 1112 for driving the roller 1102 to rotate, so as to drive the raw coal on the roller 1102 to move, a predetermined number of the roller 1102 and the screen sheets 1103 are provided, each roller 1102 is provided with a predetermined number of the screen sheets 1103, and each roller 1102 is connected to one driver 1101. The screen sheets 1103 on each two adjacent rollers 1102 are staggered such that each two adjacent screen sheets 1103 can be cleaned from each other during rotation. The driver 1101 is a reduction motor.

Referring to fig. 4 and 5, further, the screening device 11 further includes a support frame 1104 and two baffles 1105, the driver 1101 is fixed on the support frame 1104, the rollers 1102 are rotatably connected with the baffles 1105, the two baffles 1105 are vertically disposed on two opposite sides of the support frame 1104, the support frame 1104 and the tank 1202 are both connected with the belt conveyor tail 30, so that the support frame 1104 and the tank 1202 can move along the length direction of the belt conveyor tail 30, and further, the screening device 11 and the crushing device 12 can move along the length direction of the belt conveyor tail 30, and the support frame 1104 is a frame body with a hollow bottom.

Referring to fig. 4, further, the reversed loader head 20 includes an inlet guide plate 21 and a reversed loader trolley 22, wherein the inlet guide plate 21 is disposed near the roller 1102; the screening device 11 further comprises a pushing telescopic rod 1106, one end of the pushing telescopic rod 1106 is connected with the support frame 1104, the other end of the pushing telescopic rod 1106 is connected with the reversed loader trolley 22, the extension pushing telescopic rod 1106 drives the support frame 1104 to move along the direction far away from the reversed loader trolley 22, the shortening pushing telescopic rod 1106 drives the support frame 1104 to move along the direction close to the reversed loader trolley 22, further, the extension pushing telescopic rod 1106 is achieved to drive the screening device 11 and the crushing device 12 to move along the direction far away from the reversed loader trolley 22, and the shortening pushing telescopic rod 1106 drives the screening device 11 and the crushing device 12 to move along the direction close to the reversed loader trolley 22. The telescopic stroke of pushing the telescopic rod 1106 is larger than the telescopic stroke of the reversed loader head 20, when the screening device 11 needs to be overhauled or breaks down, the screening device 11 is pushed to be away from the unloading point of the reversed loader head 20, so that the raw coal guide inclined plate 1111 directly falls onto the belt conveyor tail 30 and is directly transported away through the belt conveyor tail 30 without passing through the screening device 11, the production progress is guaranteed, and the pushing telescopic rod 1106 is an oil cylinder. A limiting connecting rod 1107 is further arranged between the supporting frame 1104 and the reversed loader trolley 22, and the pushing telescopic rod 1106 stretches and retracts to realize mechanical limiting through the limiting connecting rod 1107.

Referring to fig. 4 and 5, the screening device 11 further includes an outlet guide plate 1108, a protective side plate 1109, a buffering reinforcing plate 1110 and a guide sloping plate 1111, the outlet guide plate 1108 is located between the roller 1102 and the crushing device 12 and is disposed near the roller 1102, opposite ends of the outlet guide plate 1108 are respectively and fixedly connected to the two baffles 1105, the protective side plate 1109 is located between the baffles 1105 and the crushing device 12, one end of the protective side plate 1109 is connected to the baffles 1105, the buffering reinforcing plate 1110 is located right below the roller 1102, the buffering reinforcing plate 1110 is fixed to the support frame 1104, the guide sloping plate 1111 is located between the roller 1102 and the transporter trolley 22 in the transverse direction and above the buffering reinforcing plate 1110 in the longitudinal direction, and the guide sloping plate 1111 is connected to the support frame 1104. The shield side plates 1109 are oppositely disposed. The inclined angle of the material guide inclined plate 1111 is 35 degrees.

Referring to fig. 6, further, the crushing device 12 further includes a crushing assembly fixed on the tank 1202, the crushing assembly includes a crushing cover 12041, a crushing power portion 12042, a transmission belt, a crushing shaft set 12043, a crushing hammer, an adjusting pad 12044, and a lifting cylinder 12045, the crushing cover 12041 is located above the tank 1202 and fixed on the tank 1202, an output end of the crushing power portion 12042 is fixedly connected to the transmission belt, the transmission belt is fixedly connected to the crushing shaft set 12043 to drive the crushing shaft set 12043 to rotate through the crushing power portion 12042, two ends of the crushing shaft set 12043 are located outside the crushing cover 12041, a middle portion of the crushing shaft set 12041 is located inside the crushing cover 12041, the crushing hammer is fixed in the middle of the crushing shaft set 12043 and located inside the crushing cover 12041, the crushing shaft set 12043 rotates to drive the crushing hammer to rotate, the adjusting pad 12044 and the lifting cylinder 12045 are located outside the crushing cover 12041 and located below the crushing shaft set 12043, one end of the adjusting cushion block 12044 is connected with the end of the crushing shaft group 12043, the other end of the adjusting cushion block is connected with one end of the lifting oil cylinder 12045, the other end of the lifting oil cylinder 12045 is connected with the groove body 1202, the lifting oil cylinder 12045 is perpendicular to the crushing shaft group 12043, so that the distance between the crushing hammer and the groove body 1202 can be adjusted by adjusting the lifting oil cylinder 12045, and further the crushing granularity of raw coal can be adjusted. The transmission belt is provided with a belt shield 12046, and a belt shield 12046 is fixed on the crushing cover 12041.

Please refer to fig. 6, further, the crushing device 12 further includes a telescopic rod 1205, a telescopic baffle 1206, a telescopic bottom plate 1207, one end of the telescopic rod 1205 is connected to the tank 1202, the other end of the telescopic rod is connected to the telescopic baffle 1206, the telescopic baffle 1206 is vertically disposed on the telescopic bottom plate 1207, one end of the telescopic bottom plate 1207 is connected to one end of the tank 1202, and the telescopic rod 1205 is telescopic to drive the telescopic bottom plate 1207 to extend or shorten. The extension rod 1205 is an oil cylinder.

Referring to fig. 6, further, the crushing device 12 further includes a head pressing block 1208 and a tail pressing block 1209, the head pressing block 1208 is connected to the telescopic baffle 1206 and is located at one end of the telescopic bottom plate 1207 and is far away from the tank 1202, and the tail pressing block 1209 is connected to the other end of the tank 1202 and is far away from the telescopic bottom plate 1207; the scraper chain assembly comprises a machine head chain wheel shaft group 12011, a machine tail chain wheel shaft group 12012, scrapers 12013 and a chain 12014, the output end of a scraper chain power part 1203 is fixedly connected with the machine head chain wheel shaft group 12011 or the machine tail chain wheel shaft group 12012, the machine head chain wheel shaft group 12011 is rotatably connected with a machine head pressing block 1208, the machine tail chain wheel shaft group 12012 is rotatably connected with a machine tail pressing block 1209, the chain 12014 bypasses the machine head chain wheel shaft group 12011 and the machine tail chain wheel shaft group 12012 to form a closed loop, the scrapers 12013 are provided with a preset number and are uniformly distributed on the chain 12014, the scrapers 12013 and the chain 12014 are both positioned above the trough body 1202 and the telescopic bottom plate 1207, and raw coal on the trough body 1202 and the telescopic bottom plate 120. Chain 12014, a chain puller is arranged at the joint of the head chain wheel shaft group 12011 and the tail chain wheel shaft group 12012.

Referring to fig. 6, further, the crushing device 12 further includes a head coal receiving plate 1210, and the head coal receiving plate 1210 is disposed near the head sprocket shaft set 12011 and is fixedly connected to the retractable baffle 1206.

Further, the bottom of the tank body 1202 is open, so that the scraping plate 12013 does not pull back the first coal in the closed-loop movement process, the top of the tank body 1202 is closed to strengthen the strength of the tank body, a middle plate is arranged on the tank body 1202, and the scraping plate 12013 and the chain 12014 rotate around the middle plate to form a closed loop.

Further, the support frame 1104 is composed of two vertical plates and three flat plates, the distance between the two vertical plates is reduced from top to bottom, the three flat plates are parallel to each other, the two opposite ends of the flat plates are fixedly connected with the two vertical plates respectively, and the distance between every two flat plates is greater than the maximum distance between every two sieve sheets 1103, so that small pieces of raw coal passing through the roller 1102 can pass through the space between every two flat plates and fall onto the belt conveyor tail 30.

Further, guide rails are arranged on two opposite sides of the belt conveyor tail 30, pulleys are arranged on the bottom of the support frame 1104 and the bottom of the groove body 1202, the pulleys are connected with the guide rails in a rolling mode, and the support frame 1104 is connected with the belt conveyor tail 30 and the groove body 1202 is connected with the belt conveyor tail 30 through the relative rolling of the pulleys and the guide rails.

Further, the screening device 11 is hinged with the crushing device 12 through a pin shaft. The screening device 11 and the crushing device 12 are provided with transfer mechanisms, and the functions of screening and crushing can be realized without increasing the length of the head 20 of the transfer conveyor.

When the device is used specifically, a driver 1101 is started, a scraper chain power portion 1203 and a crushing power portion 12042 are arranged, raw coal is transferred to a roller 1102 and screen pieces 1103 from an inlet guide plate 21 by a transfer conveyor head 20, the roller 1102 rotates to drive the raw coal to move along the tangential direction of rotation of the roller 1102, small pieces of raw coal pass through a gap between every two screen pieces 1103 and fall onto a belt conveyor tail 30 to be transported away, large pieces of raw coal are driven by the roller 1102 to move to a groove body 1202 close to a head chain wheel shaft group 12011, the scraper 12013 and a chain 12014 drive the raw coal to move towards the direction close to a crushing hammer, the large pieces of raw coal are crushed by the crushing hammer, and then the large pieces of raw coal are driven by the scraper 12013 and the chain 12014 to move towards the direction close to a tail chain wheel shaft group 12012 until the large pieces of raw coal fall onto the belt conveyor tail 30 from the edge of a telescopic.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (9)

1. The utility model provides a broken transfer device of crossheading roller formula screening, with elevating conveyor aircraft nose and belt feeder tail connection, its characterized in that: the screening device and the crushing device are both positioned right above the tail of the belt conveyor and are positioned at the end part of the head of the reversed loader, and the head of the reversed loader, the screening device and the crushing device are sequentially connected; the crushing device comprises a scraper chain assembly, a groove body and a scraper chain power part, wherein the scraper chain assembly is positioned on the upper part of the groove body and is driven by the scraper chain power part to move so as to drive raw coal on the groove body to move.

2. The gate-roller type screening, crushing and transferring device according to claim 1, wherein: the screening plant includes driver, roller bearing, sieve piece, and the drive end of driver and the center pin fixed connection of roller bearing to it is rotatory to drive the roller bearing, and then drives the raw coal removal on the roller bearing, and roller bearing and sieve piece all are provided with predetermined quantity, are provided with predetermined quantity's sieve piece on every roller bearing.

3. The gate-roller type screening, crushing and transferring device according to claim 2, wherein: screening plant still includes support frame, baffle, and the driver is fixed on the support frame, and the roller bearing rotates with the baffle to be connected, and the baffle is two, and vertical setting is in the relative both sides of support frame respectively, and support frame, cell body all are connected with the belt feeder tail to make support frame and cell body homoenergetic enough remove along the length direction of belt feeder tail, and then make screening plant and breaker homoenergetic remove along the length direction of belt feeder tail, the support frame is the support body of bottom fretwork.

4. A gate-roller type screening crushing transfer device according to claim 3, wherein: the head of the reversed loader comprises an inlet guide plate and a reversed loader trolley, wherein the inlet guide plate is arranged close to the rolling shaft; screening plant still includes the lapse telescopic link, the one end and the support frame that pass the telescopic link are connected, the other end is connected with the elevating conveyor dolly, pass the telescopic link with the extension and drive the support frame along the direction removal of keeping away from the elevating conveyor dolly, shorten and pass the telescopic link and drive the support frame along the direction removal of being close to the elevating conveyor dolly, and then realize the extension and pass the telescopic link and drive screening plant and breaker along the direction removal of keeping away from the elevating conveyor dolly, shorten and pass the telescopic link and drive screening plant and breaker along the direction removal of being close to the elevating conveyor dolly.

5. The gate-roller type screening, crushing and transferring device according to claim 4, wherein: the screening plant still includes export stock guide, protection curb plate, buffering gusset plate, guide swash plate, and the export stock guide is located between roller bearing and the breaker, and is close to the roller bearing setting, the relative both ends of export stock guide respectively with two baffle fixed connection, the protection curb plate is located between baffle and the breaker, and the one end and the baffle of protection curb plate are connected, the buffering gusset plate is located the roller bearing under, and the buffering gusset plate is fixed on the support frame, the guide swash plate transversely is located between roller bearing and the elevating conveyor dolly, vertically is located the top of buffering gusset plate, and the guide swash plate is connected with the support frame.

6. The gate-roller type screening, crushing and transferring device according to claim 5, wherein: the crushing device also comprises a crushing assembly, the crushing assembly is fixed on the groove body, the crushing assembly comprises a crushing cover, a crushing power part, a transmission belt, a crushing shaft group, a crushing hammer, an adjusting cushion block and a lifting oil cylinder, the crushing cover is positioned above the groove body and fixed on the groove body, the output end of the crushing power part is fixedly connected with the transmission belt, the transmission belt is fixedly connected with the crushing shaft group so as to drive the crushing shaft group to rotate through the crushing power part, two ends of the crushing shaft group are positioned outside the crushing cover, the middle part of the crushing shaft group is positioned inside the crushing cover, the crushing hammer is fixed in the middle part of the crushing shaft group and positioned inside the crushing cover, the crushing shaft group rotates to drive the crushing hammer to rotate, the adjusting cushion block and the lifting oil cylinder are positioned outside the crushing cover and below the crushing shaft group, one end of the adjusting cushion block is connected with the end part of the crushing, the other end of the lifting oil cylinder is connected with the groove body, the lifting oil cylinder is perpendicular to the crushing shaft group, the distance between the crushing hammer and the groove body is adjusted through adjusting the lifting oil cylinder, and then the crushing granularity of raw coal is adjusted.

7. The gate-roller type screening, crushing and transferring device according to claim 6, wherein: the crushing device further comprises a telescopic rod, a telescopic baffle and a telescopic bottom plate, one end of the telescopic rod is connected with the groove body, the other end of the telescopic rod is connected with the telescopic baffle, the telescopic baffle is vertically arranged on the telescopic bottom plate, one end of the telescopic bottom plate is connected with one end of the groove body, and the telescopic rod drives the telescopic bottom plate to extend or shorten.

8. The gate-roller type screening, crushing and transferring device according to claim 7, wherein: the crushing device also comprises a machine head pressing block and a machine tail pressing block, wherein the machine head pressing block is connected with the telescopic baffle, is positioned at one end of the telescopic bottom plate and is arranged far away from the groove body, and the machine tail pressing block is connected with the other end of the groove body and is arranged far away from the telescopic bottom plate; the scraper chain component comprises a machine head chain wheel shaft group, a machine tail chain wheel shaft group, a scraper and a chain, the output end of the power part of the scraper chain is fixedly connected with the machine head chain wheel shaft group or the machine tail chain wheel shaft group, the machine head chain wheel shaft group is rotatably connected with a machine head pressing block, the machine tail chain wheel shaft group is rotatably connected with the machine tail pressing block, the chain bypasses the machine head chain wheel shaft group and the machine tail chain wheel shaft group to form a closed loop, the scraper is provided with a preset number and is uniformly distributed on the chain, the scraper and the chain are both positioned above a groove body and a telescopic bottom plate, and raw coal on the groove body and the telescopic bottom plate is.

9. The gate-roller type screening, crushing and transferring device according to claim 8, wherein: the top of the tank body is closed, and the bottom of the tank body is open.

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