CN213331098U - Development machine - Google Patents

Abstract

The utility model relates to a heading machine technical field to a heading machine is provided, include: the main body frame comprises a main body part and a rear support connecting part arranged at the rear end of the main body part; one end of the chute structure is connected with the main body part, and the other end of the chute structure is a discharge hole; and one end of the pushing piece is connected with the chute structure, and the other end of the pushing piece is rotatably connected with the rear supporting connecting part. In the technical scheme of the utility model, the height of the discharge port can be adjusted according to the actual demand, on one hand, the situation that the dump truck cannot receive materials due to the fact that the height of the carriage of the dump truck is greater than the height of the discharge port can be avoided to a certain extent; on the other hand, the height of the carriages of the dump trucks of different types is different, and the tunneling gradient is different under different working conditions, so that the discharge port and the carriages keep a proper distance by timely adjusting the height of the discharge port, the impact force of materials on the carriages during discharging is favorably reduced, the service life of the dump trucks is prolonged, and the noise and dust pollution can be reduced.

Description

Development machine

Technical Field

The utility model relates to a entry driving machine technical field particularly, relates to an entry driving machine.

Background

In the tunnel boring machine in the related art, the discharge port of the first conveyor is fixed, that is, the height of the discharge port cannot be changed, and the height of the carriages of the dump trucks of different types is different, so that the condition that the height of the carriages is greater than the height of the discharge port, so that the dump trucks cannot receive materials, is likely to occur.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that the height of the discharge port can not be adjusted, the utility model aims to provide a heading machine.

In order to achieve the above object, the utility model provides a heading machine, include: the main body frame comprises a main body part and a rear support connecting part arranged at the rear end of the main body part; one end of the chute structure is rotatably connected with the main body part, and the other end of the chute structure is provided with a discharge hole; and one end of the pushing piece is rotatably connected with the chute structure, and the other end of the pushing piece is rotatably connected with the rear supporting connecting part.

According to the embodiment of the heading machine provided by the utility model, the height of the discharge port can be adjusted according to the actual demand, on one hand, the situation that the height of the carriage of the dump truck is larger than that of the discharge port to a certain extent, which leads the dump truck to be incapable of receiving materials, can be avoided; on the other hand, the height of the carriages of the dump trucks of different types is different, and the tunneling gradient under different working conditions can also be different, so that the height of the discharge port is adjusted in time, the discharge port and the carriages are at a proper distance, the impact force of materials on the carriages during discharging is favorably reduced, the service life of the dump trucks is prolonged, and noise and dust pollution can be reduced.

Specifically, the heading machine comprises a main body frame, a chute structure and an ejector. The main part frame includes main part and back supporting connection portion, and the rear end of main part is located to the back supporting connection portion, and the rear end of main part can be understood as the one end that the heading machine kept away from the face. Further, one end of the chute structure is rotatably connected with the main body part, and a discharge hole is formed in the other end of the chute structure. The chute structure can convey materials from one end close to the tunnel face to the discharge port, and the materials enter the carriage of the dump truck through the discharge port.

Furthermore, one end of the pushing piece is connected with the chute structure, and the other end of the pushing piece is rotatably connected with the rear supporting connecting part. In particular, the ejector may be a hydraulic member, such as a hydraulic cylinder. The pushing piece comprises a cylinder body and a piston rod, one end of the piston rod extends into the cylinder body, and the piston rod can slide relative to the cylinder body. The end of the piston rod far away from the cylinder body is a push rod end, and the end of the cylinder body far away from the piston rod is a cylinder bottom end. The mounting mode of the pushing piece has two types, the first type is: the push rod end of the pushing piece is connected with the chute structure, and the cylinder bottom end of the pushing piece is connected with the rear support connecting part; the second method is as follows: the cylinder bottom end of the pushing piece is connected with the chute structure, and the push rod end of the pushing piece is connected with the rear supporting connecting part. The pushing piece can drive the chute structure to rotate relative to the main body frame, and the discharge port is close to or far away from the main body frame in the rotating process of the chute structure, namely, the height of the discharge port can be adjusted. The height of the discharge port can be adjusted according to actual requirements, so that on one hand, the situation that the dump truck cannot receive materials due to the fact that the height of a carriage of the dump truck is larger than that of the discharge port to a certain extent can be avoided; on the other hand, the height of the carriages of the dump trucks of different types is different, and the tunneling gradient under different working conditions can also be different, so that the height of the discharge port is adjusted in time, the discharge port and the carriages are at a proper distance, the impact force of materials on the carriages during discharging is favorably reduced, the service life of the dump trucks is prolonged, and noise and dust pollution can be reduced.

It is worth to say that the chute structure is connected with the rear supporting connection part of the main body frame through the pushing piece, and the chute structure is rotatably connected with the main body part of the main body frame. Because the rear supporting connection part is close to the rear end of the heading machine, the chute structure can be integrally rotated.

Additionally, the utility model provides an above-mentioned technical scheme can also have following additional technical characterstic:

in the technical scheme, the chute structure comprises a front chute, a middle chute and a rear chute which are sequentially connected, the discharge port is located at one end, far away from the middle chute, of the rear chute, one end, far away from the middle chute, of the front chute is a hinged end, and the hinged end is rotatably connected with the main body.

In the technical scheme, the chute structure comprises a front chute, a middle chute and a rear chute. Specifically, preceding chute, well chute and back chute connect gradually, and well chute is located between preceding chute and the back chute promptly, and the one end of well chute links to each other with preceding chute, and the other end of well chute links to each other with back chute. The discharge port is positioned at one end of the rear chute far away from the middle chute, and materials sequentially pass through the front chute, the middle chute and the rear chute in the chute structure and finally enter a carriage of the dump truck from the discharge port of the rear chute.

Further, one end of the front chute, which is far away from the middle chute, is a hinged end. The hinged end of the front chute is rotatably connected with the main body part. In other words, one end of the chute structure, which is far away from the discharge hole, is rotatably connected with the main body part of the main body frame. When the pushing piece pushes or contracts, the whole chute structure can rotate instead of only one part of the chute structure, so that the process of conveying materials by the chute structure is more stable and smooth.

In the technical scheme, the hinged end is provided with the U-shaped groove and is rotatably connected with the main body part through the pin shaft penetrating through the U-shaped groove.

In this technical scheme, the hinged end of preceding chute is equipped with U type groove, and the round pin axle is worn to locate in the U type groove, and the hinged end of preceding chute realizes rotating through the main part realization of round pin axle with the main part frame and is connected. When the pushing piece pushes or contracts, the chute structure can rotate around the axis of the pin shaft, and then the chute structure can rotate relative to the main body frame, so that the discharge port is close to or far away from the main body frame, and the purpose of adjusting the height of the discharge port is achieved.

It is worth to be noted that, because the pin shaft is close to one end (namely, the hinged end of the front chute) far away from the discharge port in the chute structure, on one hand, the whole rotation of the chute structure is facilitated; on the other hand, the one end of top pushing member can link to each other with well chute or back chute to the increase arm of force, it is more laborsaving, thereby makes the structure of first conveyer more reasonable.

In the above technical solution, the method further comprises: shovel board portion sets up on the main part, and shovel board portion includes: the discharge chute is connected with one end of the chute structure, which is far away from the discharge port; a double-strand squeegee structure comprising: the first chain is wound on the chute structure; the second chain is wound on the chute structure; one end of each scraper is connected with the first chain, and the other end of each scraper is connected with the second chain; the driving device is arranged at one end of the rear chute, which is far away from the middle chute, is in transmission connection with the double-chain scraper structure, and can drive the double-chain scraper structure to move so as to enable the double-chain scraper structure to convey materials to the discharge hole; and the driven device is arranged on the wall of the discharge chute and is in transmission connection with the double-chain scraper structure.

In the technical scheme, the heading machine further comprises a shovel plate part, a double-chain scraper structure, a driving device and a driven device. Specifically, shovel board portion sets up on the main part, and shovel board portion includes the blown down tank, and the blown down tank of shovel board portion links up with the one end that the discharge gate was kept away from to the chute structure. The staff can change the position state of shovel board portion and cut, shovel the rock mass of face, perhaps will drop the material and pile up and collect. The material moves to the discharge hole of the chute structure through the discharge chute of the shovel plate part.

Further, the double-chain scraper structure comprises a first chain, a second chain and a plurality of scrapers. Specifically, the two chains are usually in a chain ring structure, and the first chain and the second chain are wound around the chute structure. One end of the scraper is connected with the first chain, and the other end of the scraper is connected with the second chain. Furthermore, the driving device is arranged at one end, far away from the middle chute, of the rear chute, the driven device is arranged on the wall of the discharge chute, and the driving device and the driven device are in transmission connection with the double-chain scraper structure. The staff adjusts the chute structure to suitable angle, is about to the discharge gate adjustment to suitable high back, starts drive arrangement, and the chute structure can be carried the material to the discharge gate by the one end that is close to shovel board portion, and final material enters into in the carriage of tipper by the discharge gate. Further, the chute was kept away from the one end of well chute before slave unit located, and slave unit can assist drive arrangement and make the chute structure operation, carries the material to the discharge gate by the one end that is close to shovel board portion. The driving device can drive the double-chain scraper structure to operate, so that the double-chain scraper structure conveys materials to the discharge hole of the chute structure.

In the above-described aspect, the driven device includes: the rotating shaft is connected with the wall of the discharge chute; the first driven wheel is rotationally connected with the rotating shaft and is in transmission connection with the first chain; and the second driven wheel is rotationally connected to the rotating shaft and is in transmission connection with the second chain.

In the technical scheme, the driven device comprises a rotating shaft, a first driven wheel and a second driven wheel. Specifically, the pivot is connected with the cell wall of the blown down tank of shovel board portion, and first from the driving wheel rotation to be connected in the pivot, and the second from the driving wheel rotation to be connected in the pivot, two all rotate from the driving wheel promptly and connect in the pivot, and can rotate from the relative pivot of driving wheel. Further, the first driven wheel is in transmission connection with the first chain, and the second driven wheel is in transmission connection with the second chain, and it can be understood that each driven wheel is in transmission connection with one chain, and each driven wheel is arranged corresponding to one chain in the double-chain scraper structure. Two driven wheels adopt unilateral components of a whole that can function independently structure, two driven wheels can not rotate in step promptly, can avoid one side effectively from influencing the phenomenon that the opposite side can not rotate from the driven wheel trouble.

In the above technical solution, the rotation shaft includes: the first rotating shaft is connected with the wall of one side of the discharge chute; the second rotating shaft is connected with the other side wall of the discharge chute; one end of the connecting cylinder is connected with the first rotating shaft, the other end of the connecting cylinder is connected with the second rotating shaft, the first driven wheel is arranged on the first rotating shaft, and the second driven wheel is arranged on the second rotating shaft.

In the technical scheme, the rotating shaft comprises a first rotating shaft, a second rotating shaft and a connecting cylinder. Specifically, first pivot is connected with one of them side cell wall of the blown down tank of shovel board portion, and the second pivot is connected with the other side cell wall of blown down tank, and first pivot and second pivot are connected to the connecting cylinder. In other words, one end of the first rotating shaft is connected with the wall of the discharge chute, and the other end of the first rotating shaft is connected with the connecting cylinder; one end of the second rotating shaft is connected with the wall of the discharge chute, and the other end of the second rotating shaft is connected with the connecting cylinder. Of the two driven wheels, the first driven wheel is arranged on the first rotating shaft, and the second driven wheel is arranged on the second rotating shaft. Two driven wheels adopt unilateral components of a whole that can function independently structure, two driven wheels can not rotate in step promptly, can avoid one side effectively from influencing the phenomenon that the opposite side can not rotate from the driven wheel trouble.

In the above technical solution, the connecting cylinder includes: a barrel; the first fixing seat is arranged at one end of the barrel body, and a first mounting groove is formed in the first fixing seat; the second fixed seat is arranged at the other end of the cylinder body, and a third mounting groove is formed in the second fixed seat; the first pressing block is used for covering the notch of the first mounting groove; the third pressing block is used for covering a notch of the third mounting groove, a second mounting groove and a second pressing block are arranged on one side groove wall of the discharge groove, the second pressing block is used for covering a notch of the second mounting groove, a fourth mounting groove and a fourth pressing block are arranged on the other side groove wall of the discharge groove, the fourth pressing block is used for covering a notch of the fourth mounting groove, one end of the first rotating shaft is embedded into the first mounting groove, and the other end of the first rotating shaft is embedded into the second mounting groove; one end of the second rotating shaft is embedded into the third mounting groove, and the other end of the second rotating shaft is embedded into the fourth mounting groove.

In the technical scheme, the connecting cylinder comprises a cylinder body, a first fixing seat, a second fixing seat, a first pressing block and a third pressing block. Specifically, the one end of barrel is located to first fixing base, and the other end of barrel is located to the second fixing base. It can be understood that, in the two fixing seats, one fixing seat is arranged at one end of the cylinder body, and the other fixing seat is arranged at the other end of the cylinder body. Further, be equipped with a first mounting groove on the first fixing base, first briquetting is used for covering the notch of first mounting groove, can understand that first briquetting and the first mounting groove of first fixing base mutually support. The second fixing seat is provided with a third mounting groove, and the third pressing block is used for covering a notch of the third mounting groove.

Furthermore, a second mounting groove and a second pressing block are arranged on the groove wall on one side of the discharging groove of the shovel plate part. Specifically, the second pressing block is used for covering a notch of the second mounting groove, namely the second pressing block is matched with the second mounting groove. And a fourth mounting groove and a fourth pressing block are arranged on the other side groove wall of the discharging groove of the shovel plate part. Specifically, the fourth pressing block is used for covering a notch of the fourth mounting groove, namely the fourth pressing block is matched with the fourth mounting groove.

Furthermore, one end of the first rotating shaft is embedded into the first mounting groove, and the other end of the first rotating shaft is embedded into the second mounting groove; one end of the second rotating shaft is embedded into the third mounting groove, and the other end of the second rotating shaft is embedded into the fourth mounting groove. Through setting up two from the driving wheel respectively in first pivot or second pivot, two are driven the wheel and can not synchronous rotation, can avoid one side effectively to influence the phenomenon that the opposite side can not rotate from the driving wheel trouble.

In the above technical solution, the driven apparatus further includes: a first rolling bearing; a second rolling bearing; a third rolling bearing; the first rolling bearing and the second rolling bearing are used for connecting the first driven wheel with the first rotating shaft, and are arranged in parallel; and the third rolling bearing and the fourth rolling bearing are used for connecting the second driven wheel and the second rotating shaft, and the second rolling bearing and the fourth rolling bearing are arranged in parallel.

In this solution, the driven device further includes a first rolling bearing, a second rolling bearing, a third rolling bearing, and a fourth rolling bearing, i.e., the driven device includes four rolling bearings. The first rolling bearing and the second rolling bearing are used for connecting the first driven wheel with the first rotating shaft, and the first rolling bearing and the second rolling bearing are arranged in parallel. Further, third antifriction bearing and fourth antifriction bearing are used for linking to each other the second from driving wheel with the second pivot, and third antifriction bearing and fourth antifriction bearing also set up side by side, can understand that, with two antifriction bearing that same follow driving wheel links to each other set up side by side, through set up two antifriction bearings in driven device's each side, are favorable to improving load capacity and life.

In the technical scheme, one end of the first driven wheel, which is far away from the wall of the discharge chute, is in sealing connection with the first rotating shaft, one end of the first driven wheel, which is close to the wall of the discharge chute, is provided with a first end cover, the first end cover is in sealing connection with the first rotating shaft, a first oil cavity for storing lubricating oil is formed between the first driven wheel and the first rotating shaft, and the first rolling bearing and the second rolling bearing are arranged in the first oil cavity; the second is kept away from the one end and the second pivot sealing connection of the cell wall of blown down tank from the driving wheel, and the second is provided with the second end cover from the one end of driving wheel near the cell wall of blown down tank, and second end cover and second pivot sealing connection form the second oil pocket that is used for storing lubricating oil from driving wheel and second pivot between the second, and third antifriction bearing and fourth antifriction bearing set up in the second oil pocket.

In this technical scheme, through keeping away from the one end and the pivot sealing connection of the cell wall of blown down tank from the driving wheel, and be provided with the end cover from the one end of the cell wall of driven wheel near the blown down tank, end cover and pivot sealing connection. An oil cavity is formed between the driven wheel and the rotating shaft and can store lubricating oil. Further, antifriction bearing sets up in the oil pocket, and lubricating oil can lubricate the position of antifriction bearing and driven round of contact to and the position of antifriction bearing and pivot contact, in order to improve life.

In the technical scheme, a first axial channel is arranged on the end face of one end, away from the connecting cylinder, of the first rotating shaft, a first radial channel is arranged on the side wall of the first rotating shaft, the first radial channel is communicated with the first axial channel, and the first radial channel is located between the first rolling bearing and the second rolling bearing; and/or the end face of one end, far away from the connecting cylinder, of the second rotating shaft is provided with a second axial channel, the side wall of the second rotating shaft is provided with a second radial channel, the second radial channel is communicated with the second axial channel, and the second radial channel is positioned between the third rolling bearing and the fourth rolling bearing.

In this technical scheme, the terminal surface of first pivot is equipped with first axial passageway, and is equipped with first radial passageway on the circumference lateral wall of first pivot, first axial passageway and first radial passageway intercommunication. The first radial passage is located between the first rolling bearing and the second rolling bearing. In other words, the first radial passage is communicated with the oil cavity, and when the worker fills lubricating oil into the first oil cavity, the lubricating oil sequentially passes through the first axial passage and the first radial passage and finally enters the first oil cavity.

Furthermore, the end face of the second rotating shaft is provided with a second axial channel, the circumferential side wall of the second rotating shaft is provided with a second radial channel, and the second axial channel is communicated with the second radial channel. The second radial passage is located between the third rolling bearing and the fourth rolling bearing. In other words, the second radial channel is communicated with the oil cavity, and when the worker fills lubricating oil into the second oil cavity, the lubricating oil sequentially passes through the second axial channel and the second radial channel and finally enters the second oil cavity.

It is worth mentioning that the axial and radial channels may be provided only on the first shaft; or, only the axial channel and the radial channel are arranged on the second rotating shaft; or the first rotating shaft and the second rotating shaft are both provided with an axial channel and a radial channel.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

Figure 1 shows a front view of a chute structure according to one embodiment of the invention;

figure 2 shows a top view of a chute structure according to an embodiment of the invention;

fig. 3 shows a first schematic view of a driven device according to an embodiment of the invention;

fig. 4 shows a second schematic view of a driven device according to an embodiment of the invention;

fig. 5 shows a third schematic view of a driven device according to an embodiment of the invention;

fig. 6 shows a schematic view of a drive device according to an embodiment of the invention;

figure 7 shows a first schematic view of a heading machine according to an embodiment of the invention;

FIG. 8 is an enlarged partial schematic view of portion A of FIG. 7;

figure 9 shows a second schematic view of a heading machine according to an embodiment of the invention;

figure 10 shows a third schematic view of a heading machine according to an embodiment of the invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 10 is:

100: a heading machine; 110: a chute structure; 111: a front chute; 1111: a hinged end; 1112: a U-shaped groove; 112: a middle chute; 113: a rear chute; 1131: a discharge port; 120: pushing the piece; 130: a drive device; 131: a drive wheel; 132: a hydraulic motor; 140: a driven device; 141: a first driven wheel; 142: a rotating shaft; 1421: a first rotating shaft; 1422: a second rotating shaft; 1423 a: a first axial passage; 1423 b: a second axial passage; 1424 a: a first radial passage; 1424 b: a second radial passage; 143 a: a first rolling bearing; 143 b: a second rolling bearing; 144: a connecting cylinder; 1441: a barrel; 1442: a first fixed seat; 1443: a first pressing block; 1444: a first mounting groove; 1445: a second fixed seat; 1446: a third mounting groove; 1447: a third pressing block; 145 a: a first oil chamber; 145 b: a second oil chamber; 146 a: a first end cap; 146 b: a second end cap; 147: a second driven wheel; 148 a: a third rolling bearing; 148 b: a fourth rolling bearing; 150: a tensioning device; 160: a main body frame; 161: a main body portion; 162: a rear support connection; 170: a shovel plate portion; 171: a discharge chute; 1711: a second mounting groove; 1712: a second pressing block; 1713: a fourth mounting groove; 1714: a fourth briquetting; 180: a pin shaft; 190: a double-chain scraper structure; 191: a first chain; 192: a squeegee; 193: a second chain; 300: a dump truck.

Detailed Description

In order to make the above objects, features and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the present invention may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

A heading machine 100 provided according to some embodiments of the present invention is described below with reference to fig. 1 to 10.

Example one

As shown in fig. 7, 9 and 10, an embodiment of the present invention provides a heading machine 100 including a main body frame 160, a chute structure 110 and a pusher 120. The body frame 160 includes a body 161 and a rear support link 162, the rear support link 162 is provided at the rear end of the body 161, and the rear end of the body 161 can be understood as the end of the heading machine 100 away from the face. Further, one end of the chute structure 110 is rotatably connected to the main body 161, and the other end of the chute structure 110 is formed with a discharge port 1131. The chute structure 110 can convey the material from the end close to the tunnel face to the discharge port 1131, and the material enters the carriage of the dump truck 300 through the discharge port 1131.

Further, as shown in fig. 7 and 9, one end of the pusher 120 is connected to the chute structure 110, and the other end of the pusher 120 is connected to the rear support connection 162. In particular, the pusher 120 may be a hydraulic member, such as a hydraulic cylinder. The pushing member 120 includes a cylinder body and a piston rod, one end of the piston rod extends into the cylinder body, and the piston rod can slide relative to the cylinder body. The end of the piston rod far away from the cylinder body is a push rod end, and the end of the cylinder body far away from the piston rod is a cylinder bottom end. The pushing member 120 is installed in two ways, the first way is: the push rod end of the pushing piece 120 is connected with the chute structure 110, and the cylinder bottom end of the pushing piece 120 is connected with the rear support connecting part 162; the second method is as follows: the cylinder bottom end of the pusher 120 is connected to the trough structure 110 and the rod end of the pusher 120 is connected to the rear support connection 162. The pushing component 120 can drive the chute structure 110 to rotate relative to the main body frame 160, and during the rotation of the chute structure 110, the discharging port 1131 is close to or far away from the main body frame 160, that is, the height of the discharging port 1131 can be adjusted. Since the height of the discharge port 1131 can be adjusted according to actual requirements, on one hand, the situation that the dump truck 300 cannot receive materials due to the fact that the height of the carriage of the dump truck 300 is larger than that of the discharge port 1131 can be avoided to a certain extent; on the other hand, the height of the carriages of the dump trucks 300 in different types is different, and the tunneling gradient under different working conditions is different, so that the height of the discharge port 1131 is adjusted in time, the discharge port 1131 and the carriages are at a proper distance, the impact force of materials on the carriages during discharging is favorably reduced, the service life of the dump trucks 300 is prolonged, and noise and dust pollution can be reduced.

It is noted that the chute structure 110 is connected to the rear support connection 162 of the main body frame 160 via the pusher 120, and the chute structure 110 is pivotally connected to the main body 161 of the main body frame 160. Since the rear support connection 162 is near the rear end of the heading machine 100, it is advantageous to achieve a unitary rotation of the chute structure 110.

Example two

As shown in fig. 1, 2 and 7, the chute structure 110 includes a front chute 111, a middle chute 112 and a rear chute 113. Specifically, the front chute 111, the middle chute 112 and the rear chute 113 are connected in sequence, that is, the middle chute 112 is located between the front chute 111 and the rear chute 113, one end of the middle chute 112 is connected to the front chute 111, and the other end of the middle chute 112 is connected to the rear chute 113. The discharge port 1131 is located at one end of the rear chute 113 far away from the middle chute 112, and the materials sequentially pass through the front chute 111, the middle chute 112 and the rear chute 113 in the chute structure 110, and finally enter the compartment of the dump truck 300 from the discharge port 1131 of the rear chute 113.

Further, as shown in FIG. 7, the end of the front chute 111 distal to the middle chute 112 is a hinged end 1111. The hinged end 1111 of the front chute 111 is pivotally connected to the main body 161. In other words, the end of the chute structure 110 away from the outlet 1131 is rotatably connected to the main body 161 of the main body frame 160. When the pushing member 120 pushes or contracts, the whole chute structure 110 rotates instead of only one part of the chute structure 110, which is beneficial to the more stable and smooth material conveying process of the chute structure 110.

In another embodiment, as shown in fig. 7 and 8, the heading machine 100 further includes a blade portion 170. Specifically, blade portion 170 is rotatably coupled to body portion 161 by a pin 180. Shovel board 170 can rotate around the axis of round pin axle 180, and the staff can change shovel board 170's position state and cut, shovel the rock mass of face, or pile up and collect the material that drops. In addition, a cutting cutter disc is further arranged at one end of the heading machine 100 close to the shovel plate part 170, the cutting cutter disc is located above the shovel plate part 170, rock mass on a tunnel face is cut and fractured through the cutting cutter disc, materials can fall onto the shovel plate part 170, and then the materials are conveyed through the chute structure 110; alternatively, the material falls directly onto the chute structure 110 and is transported by the chute structure 110 to the end remote from the tunnel face.

Further, as shown in fig. 7, the hinge end 1111 of the front chute 111 is provided with a U-shaped groove 1112, the pin shaft 180 penetrates through the U-shaped groove 1112, when the pushing member 120 pushes or contracts, the chute structure 110 can rotate around the axis of the pin shaft 180, and then the chute structure 110 can rotate relative to the main body frame 160 and the shovel plate, so that the discharge port 1131 is close to or far away from the main body frame 160, and the purpose of adjusting the height of the discharge port 1131 is achieved.

Further, as shown in fig. 7, 9 and 10, one end of the pushing member 120 is rotatably connected to the middle chute 112, and the other end of the pushing member 120 is rotatably connected to the main body frame 160, so that when the pushing member 120 pushes or retracts, the chute structure 110 can rotate around the axis of the pin 180, and further, the chute structure 110 can rotate relative to the main body frame 160 and the shovel plate.

It should be noted that, since the pin 180 is close to one end of the chute structure 110 (i.e., the hinged end 1111 of the front chute 111) far from the discharge port 1131, on one hand, it is beneficial to realize the integral rotation of the chute structure 110; on the other hand, one end of the pushing component 120 can be connected with the middle chute 112 or the rear chute 113 to increase the force arm, so that the labor is saved, and the structure is more reasonable.

EXAMPLE III

The roadheader 100 also includes a blade section 170, a double-strand screed structure 190, a drive 130, and a driven 140. Specifically, as shown in fig. 3, 4 and 7, the shovel plate portion 170 is disposed on the main body portion 161, and the shovel plate portion 170 includes a discharge chute 171, and the discharge chute 171 of the shovel plate portion 170 is engaged with an end of the chute structure 110 far from the discharge port 1131. The staff can change the position state of shovel board portion 170 and cut, shovel the rock mass of face, or pile up and collect the material that drops. The material moves through the discharge chute 171 of the shovel portion 170 toward the discharge port 1131 of the chute structure 110.

Further, as shown in fig. 2, the double-stranded flight structure 190 includes a first chain 191, a second chain 193, and a plurality of flights 192. Specifically, the first chain 191 and the second chain 193 are generally chain ring structures, and the first chain 191 and the second chain 193 are wound around the chute structure 110. One end of the scraper 192 is connected to the first chain 191, and the other end of the scraper 192 is connected to the second chain 193. Further, as shown in fig. 1 and fig. 2, the driving device 130 is disposed at an end of the rear chute 113 far from the middle chute 112, the driven device 140 is disposed on a wall of the discharge chute 171, and both the driving device 130 and the driven device 140 are in transmission connection with the double-chain scraper structure 190. The staff adjusts the chute structure 110 to a suitable angle, that is, after the discharge port 1131 is adjusted to a suitable height, the driving device 130 is started, the chute structure 110 can convey the material to the discharge port 1131 from one end close to the shovel plate part 170, and finally the material enters the carriage of the dump truck 300 from the discharge port 1131. The driving device 130 can drive the double-chain scraper structure 190 to operate, so that the double-chain scraper structure 190 conveys the material to the discharge port 1131 of the chute structure 110.

Further, as shown in fig. 3, 4 and 5, the heading machine 100 further includes a driven device 140. Specifically, the driven device 140 is disposed at an end of the front chute 111 away from the middle chute 112, and the driven device 140 can assist the driving device 130 to operate the double-chain scraper structure 190 to convey the material from an end close to the scraper plate portion 170 to the discharge port 1131.

Further, as shown in fig. 6, the driving device 130 includes a driving wheel 131 and a hydraulic motor 132. Specifically, the driving wheel 131 is located at one end of the rear chute 113 far from the middle chute 112, the driving wheel 131 is rotatably connected with the rear chute 113, and the driving wheel 131 is in transmission connection with the chain. The hydraulic motor 132 is in driving connection with the driving wheels 131, and the hydraulic motor 132 can rotate the driving wheels 131.

Further, as shown in fig. 3, the driven device 140 includes a first driven wheel 141 and a second driven wheel 147. Specifically, the first driven wheel 141 and the second driven wheel 147 are located in the discharge chute 171 of the blade portion 170, and the first driven wheel 141 and the second driven wheel 147 are rotatable relative to the discharge chute 171. Through the cooperation use of drive wheel 131 with from the driving wheel, rotate the back at drive wheel 131, can drive the chain operation, and then double-stranded scraper blade structure 190 can carry the material.

Further, as shown in fig. 1 and 2, the heading machine 100 further includes a tensioning device 150 provided at the rear chute 113. The driving wheel 131 is connected with the rear chute 113 in a sliding mode, and the tensioning device 150 enables the driving wheel 131 to slide relative to the rear chute 113, so that the driving wheel 131 and the driven wheel can be close to or far away from each other, and further the tensioning state of the chain can be adjusted. In other words, by changing the distance between the driving pulley 131 and the driven pulley, the state of the chain is adjusted to avoid the chain from being too slack or too tight.

Specifically, the tensioning device 150 may be a hydraulic cylinder, although other configurations are possible.

In another embodiment, as shown in fig. 3 and 4, the driven device 140 includes a rotating shaft 142, a first driven wheel 141, and a second driven wheel 147. Specifically, the rotating shaft 142 is connected to a wall of the discharging chute 171 of the blade portion 170, the first driven wheel 141 is rotatably connected to the rotating shaft 142, and the second driven wheel 147 is rotatably connected to the rotating shaft 142, that is, both the driven wheels are rotatably connected to the rotating shaft 142, and the driven wheels can rotate relative to the rotating shaft 142. Further, the first driven wheel 141 is in driving connection with the first chain 191, and the second driven wheel 147 is in driving connection with the second chain 193, it being understood that each driven wheel is in driving connection with one chain, and each driven wheel is disposed corresponding to one chain in the double-chain scraper structure 190.

Further, as shown in fig. 3, the rotating shaft 142 includes a first rotating shaft 1421, a second rotating shaft 1422, and a connecting cylinder 144. Specifically, the first rotating shaft 1421 is connected to one of the walls of the discharging chute 171 of the blade portion 170, the second rotating shaft 1422 is connected to the other wall of the discharging chute 171, and the connecting cylinder 144 connects the first rotating shaft 1421 and the second rotating shaft 1422. In other words, one end of the first rotating shaft 1421 is connected to the wall of the discharge chute 171, and the other end is connected to the connecting cylinder 144; the second rotating shaft 1422 has one end connected to a wall of the discharging chute 171 and the other end connected to the connecting cylinder 144. Of the two driven wheels 141, a first driven wheel 141 is provided on the first rotating shaft 1421, and a second driven wheel 147 is provided on the second rotating shaft 1422. The two driven wheels 141 adopt a single-side split structure, that is, the two driven wheels 141 can not rotate synchronously, so that the phenomenon that one driven wheel 141 fails to work and the other driven wheel cannot rotate can be effectively avoided.

Further, as shown in fig. 3, the connecting cylinder 144 includes a cylinder 1441, a first fixing seat 1442, a second fixing seat 1445, a first pressing block 1443, and a third pressing block 1447. Specifically, the first fixing seat 1442 is disposed at one end of the cylinder 1441, and the second fixing seat 1445 is disposed at the other end of the cylinder 1441. It can be understood that, in the two fixing seats, one fixing seat is disposed at one end of the cylinder 1441, and the other fixing seat is disposed at the other end of the cylinder 1441. Further, a first mounting groove 1444 is formed on the first fixing seat 1442, and the first pressing block 1443 can cover a notch of the first mounting groove 1444, and it can be understood that the first pressing block 1443 is matched with the first mounting groove 1444 of the first fixing seat 1442. The second fixing seat 1445 is provided with a third mounting groove 1446, and the third pressing block 1447 is used for covering a notch of the third mounting groove 1446, and it can be understood that the third pressing block 1447 is matched with the third mounting groove 1446 of the second fixing seat 1445.

Further, a second mounting groove 1711 and a second pressing block 1712 are provided on a side wall of the discharge groove 171 of the blade portion 170. Specifically, the second pressing block 1712 is used for covering the notch of the second mounting groove 1711, that is, the second pressing block 1712 is matched with the second mounting groove 1711. A fourth mounting groove 1713 and a fourth pressing block 1714 are provided on the other side wall of the discharge groove 171 of the shovel portion 170. Specifically, the fourth pressing block 1714 is used for covering the notch of the fourth installation groove 1713, that is, the fourth pressing block 1714 is matched with the fourth installation groove 1713.

Further, one end of the first rotating shaft 1421 is embedded into the first installation groove 1444, and the other end of the first rotating shaft is embedded into the second installation groove 1711; one end of the second rotating shaft 1422 is inserted into the third mounting groove 1446, and the other end thereof is inserted into the fourth mounting groove 1713. Through setting up two driven wheels respectively on first pivot 1421 or second pivot 1422, two driven wheels can not synchronous rotation, can avoid one side effectively that the trouble from the driving wheel to influence the phenomenon that the opposite side can not rotate.

Further, as shown in fig. 3 and 4, the driven device 140 further includes a first rolling bearing 143a, a second rolling bearing 143b, a third rolling bearing 148a, and a fourth rolling bearing 148b, i.e., the driven device 140 includes four rolling bearings. The first rolling bearing 143a and the second rolling bearing 143b are used to connect the first driven wheel 141 to the first rotating shaft 1421, and the first rolling bearing 143a and the second rolling bearing 143b are juxtaposed. Further, a third rolling bearing 148a and a fourth rolling bearing 148b are used to connect the second driven wheel 147 with the second rotating shaft 1422, and the third rolling bearing 148a and the fourth rolling bearing 148b are also juxtaposed. It will be appreciated that the arrangement of two rolling bearings side by side in connection with the same driven wheel is beneficial to improving load capacity and life by providing two rolling bearings on each side of the driven device 140.

Further, as shown in fig. 3 and 4, one end of the first driven wheel 141, which is far away from the wall of the discharge chute 171, is connected with the first rotating shaft 1421 in a sealing manner, one end of the first driven wheel 141, which is near to the wall of the discharge chute 171, is provided with a first end cover 146a, the first end cover 146a is connected with the first rotating shaft 1421 in a sealing manner, a first oil cavity 145a for storing lubricating oil is formed between the first driven wheel 141 and the first rotating shaft 1421, and a first rolling bearing 143a and a second rolling bearing 143b are arranged in the first oil cavity 145 a; one end of the second driven wheel 147, which is far away from the groove wall of the discharge groove 171, is in sealed connection with the second rotating shaft 1422, one end of the second driven wheel 147, which is near to the groove wall of the discharge groove 171, is provided with a second end cover 146b, the second end cover 146b is in sealed connection with the second rotating shaft 1422, a second oil cavity 145b for storing lubricating oil is formed between the second driven wheel 147 and the second rotating shaft 1422, and a third rolling bearing 148a and a fourth rolling bearing 148b are arranged in the second oil cavity 145 b. In other words, one end of the driven wheel, which is far away from the wall of the discharge chute 171, is hermetically connected to the rotating shaft 142, one end of the driven wheel, which is close to the wall of the discharge chute 171, is provided with an end cover, the end cover is hermetically connected to the rotating shaft 142, the end cover, the driven wheel and the rotating shaft 142 define an oil cavity for storing lubricating oil, and the rolling bearing is disposed in the oil cavity. The lubricating oil can lubricate the contact position of the rolling bearing and the driven wheel and the contact position of the rolling bearing and the rotating shaft 142, so that the service life is prolonged.

Further, as shown in fig. 3 and 4, the end surface of the first rotating shaft 1421 is provided with a first axial passage 1423a, and the circumferential side wall of the first rotating shaft 1421 is provided with a first radial passage 1424a, the first axial passage 1423a is communicated with the first radial passage 1424a, and the first radial passage 1424a is located between the first rolling bearing 143a and the second rolling bearing 143 b. In other words, the first radial passage 1424a communicates with the oil chamber 145, and when the worker fills the first oil chamber 145a with the lubricating oil, the lubricating oil passes through the first axial passage 1423a and the first radial passage 1424a in sequence, and finally enters the first oil chamber 145 a.

Further, a second axial channel 1423b is disposed on an end surface of the second rotating shaft 1422, a second radial channel 1424b is disposed on a circumferential side wall of the second rotating shaft 1422, and the second axial channel 1423b is communicated with the second radial channel 1424 b. The second radial passage 1424b is located between the third rolling bearing 148a and the fourth rolling bearing 148 b. In other words, the second radial passage 1424b communicates with the oil chamber 145, and when the worker fills the second oil chamber 145b with the lubricating oil, the lubricating oil passes through the second axial passage 1423b and the second radial passage 1424b in sequence, and finally enters the second oil chamber 145 b.

In another embodiment, axial and radial channels may be provided on the first shaft 1421 only; alternatively, axial and radial channels may be provided only on second shaft 1422; alternatively, the first rotating shaft 1421 and the second rotating shaft 1422 are both provided with an axial channel and a radial channel.

According to the embodiment of the heading machine, the height of the discharge port can be adjusted according to actual requirements, on one hand, the situation that the height of a carriage of a self-dumping truck is larger than that of the discharge port to a certain extent, so that the self-dumping truck cannot receive materials can be avoided; on the other hand, the height of the carriages of the dump trucks of different types is different, and the tunneling gradient under different working conditions can also be different, so that the height of the discharge port is adjusted in time, the discharge port and the carriages are at a proper distance, the impact force of materials on the carriages during discharging is favorably reduced, the service life of the dump trucks is prolonged, and noise and dust pollution can be reduced.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A heading machine, comprising:

a main body frame (160) including a main body (161) and a rear support connection part (162) provided at the rear end of the main body (161);

a chute structure (110), one end of which is rotatably connected with the main body part (161), and the other end of which is provided with a discharge hole (1131);

and one end of the pushing piece (120) is rotationally connected with the chute structure (110), and the other end of the pushing piece is rotationally connected with the rear support connecting part (162).

2. The heading machine according to claim 1, wherein the chute structure (110) comprises a front chute (111), a middle chute (112) and a rear chute (113) which are connected in sequence, the discharge port (1131) is located at one end of the rear chute (113) far away from the middle chute (112), one end of the front chute (111) far away from the middle chute (112) is a hinged end (1111), and the hinged end (1111) is rotatably connected with the main body part (161).

3. The heading machine according to claim 2, wherein the hinged end (1111) is provided with a U-shaped groove (1112), and the hinged end (1111) is rotatably connected with the main body (161) through a pin shaft (180) penetrating the U-shaped groove (1112).

4. The heading machine of claim 2, further comprising:

a shovel plate part (170) provided on the main body part (161), the shovel plate part (170) including:

the discharge chute (171), the discharge chute (171) is connected with one end of the chute structure (110) far away from the discharge hole (1131);

a double-stranded squeegee structure (190) comprising:

the first chain (191) is wound on the chute structure (110);

a second chain (193) wound on the chute structure (110);

a plurality of scrapers (192), one end of the scrapers (192) being connected to the first chain (191), and the other end of the scrapers (192) being connected to the second chain (193);

the driving device (130) is arranged at one end, far away from the middle chute (112), of the rear chute (113), the driving device (130) is in transmission connection with the double-chain scraper structure (190), and the driving device (130) can drive the double-chain scraper structure (190) to move so that the double-chain scraper structure (190) can convey materials to the discharge hole (1131);

the driven device (140) is arranged on the wall of the discharge chute (171), and the driven device (140) is in transmission connection with the double-chain scraper structure (190).

5. The heading machine according to claim 4, wherein the driven device (140) comprises:

a rotating shaft (142) connected with the wall of the discharge chute (171);

the first driven wheel (141) is rotationally connected to the rotating shaft (142) and is in transmission connection with the first chain (191);

and the second driven wheel (147) is rotationally connected to the rotating shaft (142) and is in transmission connection with the second chain (193).

6. The heading machine according to claim 5, wherein the shaft (142) comprises:

the first rotating shaft (1421) is connected with one side of the discharging chute (171);

the second rotating shaft (1422) is connected with the other side wall of the discharging chute (171);

a connecting cylinder (144) having one end connected to the first rotating shaft (1421) and the other end connected to the second rotating shaft (1422),

the first driven wheel (141) is arranged on the first rotating shaft (1421), and the second driven wheel (147) is arranged on the second rotating shaft (1422).

7. The heading machine of claim 6, wherein the connector barrel (144) comprises:

a barrel (1441);

the first fixing seat (1442) is arranged at one end of the barrel (1441), and a first mounting groove (1444) is formed in the first fixing seat (1442);

a second fixed seat (1445) arranged at the other end of the cylinder body (1441), a third mounting groove (1446) is arranged on the second fixed seat (1445),

a first pressing block (1443) for covering a notch of the first mounting groove (1444);

a third pressing block (1447) for covering a notch of the third mounting groove (1446),

a second mounting groove (1711) and a second pressing block (1712) are arranged on one side of the discharge groove (171), the second pressing block (1712) is used for covering a notch of the second mounting groove (1711), a fourth mounting groove (1713) and a fourth pressing block (1714) are arranged on the other side of the discharge groove (171), the fourth pressing block (1714) is used for covering a notch of the fourth mounting groove (1713), one end of the first rotating shaft (1421) is embedded into the first mounting groove (1444), and the other end of the first rotating shaft (1421) is embedded into the second mounting groove (1711); one end of the second rotating shaft (1422) is embedded into the third mounting groove (1446), and the other end of the second rotating shaft (1422) is embedded into the fourth mounting groove (1713).

8. The heading machine according to claim 6, wherein the driven device (140) further comprises:

a first rolling bearing (143 a);

a second rolling bearing (143 b);

a third rolling bearing (148 a);

a fourth rolling bearing (148 b),

the first rolling bearing (143 a) and the second rolling bearing (143 b) are used for connecting the first driven wheel (141) with the first rotating shaft (1421), and the first rolling bearing (143 a) and the second rolling bearing (143 b) are arranged in parallel;

the third rolling bearing (148 a) and the fourth rolling bearing (148 b) are used for connecting the second driven wheel (147) with the second rotating shaft (1422), and the third rolling bearing (148 a) and the fourth rolling bearing (148 b) are arranged in parallel.

9. The heading machine according to claim 8, wherein one end of the first driven wheel (141) far away from the wall of the discharge chute (171) is in sealing connection with the first rotating shaft (1421), one end of the first driven wheel (141) close to the wall of the discharge chute (171) is provided with a first end cover (146 a), the first end cover (146 a) is in sealing connection with the first rotating shaft (1421), a first oil cavity (145 a) for storing lubricating oil is formed between the first driven wheel (141) and the first rotating shaft (1421), and the first rolling bearing (143 a) and the second rolling bearing (143 b) are arranged in the first oil cavity (145 a);

one end, far away from the wall of the discharge chute (171), of the second driven wheel (147) is in sealing connection with the second rotating shaft (1422), one end, close to the wall of the discharge chute (171), of the second driven wheel (147) is provided with a second end cover (146 b), the second end cover (146 b) is in sealing connection with the second rotating shaft (1422), a second oil cavity (145 b) for storing lubricating oil is formed between the second driven wheel (147) and the second rotating shaft (1422), and the third rolling bearing (148 a) and the fourth rolling bearing (148 b) are arranged in the second oil cavity (145 b).

10. The heading machine according to claim 9, wherein an end face of one end of the first rotating shaft (1421) away from the connecting cylinder (144) is provided with a first axial passage (1423 a), a side wall of the first rotating shaft (1421) is provided with a first radial passage (1424 a), the first radial passage (1424 a) is communicated with the first axial passage (1423 a), and the first radial passage (1424 a) is located between the first rolling bearing (143 a) and the second rolling bearing (143 b); and/or

The end face of one end, away from the connecting cylinder (144), of the second rotating shaft (1422) is provided with a second axial channel (1423 b), the side wall of the second rotating shaft (1422) is provided with a second radial channel (1424 b), the second radial channel (1424 b) is communicated with the second axial channel (1423 b), and the second radial channel (1424 b) is located between the third rolling bearing (148 a) and the fourth rolling bearing (148 b).

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