CN116838360A - Tunneling host and tunneling machine - Google Patents
Tunneling host and tunneling machine Download PDFInfo
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- CN116838360A CN116838360A CN202311120867.6A CN202311120867A CN116838360A CN 116838360 A CN116838360 A CN 116838360A CN 202311120867 A CN202311120867 A CN 202311120867A CN 116838360 A CN116838360 A CN 116838360A
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- 230000005641 tunneling Effects 0.000 title claims abstract description 57
- 230000033001 locomotion Effects 0.000 claims abstract description 30
- 239000003921 oil Substances 0.000 claims description 66
- 239000002199 base oil Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 13
- 239000011435 rock Substances 0.000 abstract description 9
- 238000004873 anchoring Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 6
- 239000003245 coal Substances 0.000 description 10
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
- E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1086—Drives or transmissions specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
Abstract
The invention provides a tunneling host machine and a tunneling machine, which belong to the field of tunneling machinery and comprise a cantilever working mechanism, a cantilever supporting mechanism, a hydraulic system and an electric system; a large arm of the ditching roller, a cutting head and a cutting driving device which are arranged at the tail end of the free end of the large arm; lifting device, slewing device, ditching machine body pitching swinging beam and machine body; the pair of ditching headstock swinging beams are mutually arranged in parallel, and two ends of the ditching headstock swinging beams are respectively hinged with two side ends of the fixed end of the big arm of the ditching roller and two side ends of the pitching swinging beam of the ditching machine body. The large arm of the ditching roller, the swinging beams of the ditching headstock and the pitching swinging beams of the ditching machine body form a parallelogram link mechanism. The tunneling host machine disclosed by the invention is a superposition of horizontal rectilinear motion and vertical circular motion, not only inherits the advantages of flexibility of the cantilever tunneling machine and high efficiency of the transverse shaft continuous mining machine and the tunneling and anchoring integrated machine, but also overcomes the defect that the cantilever tunneling machine cuts out an invalid space, and simultaneously overcomes the defect that the transverse shaft continuous mining machine and the tunneling and anchoring integrated machine have low hardness of cutting rocks.
Description
Technical Field
The invention belongs to the field of tunneling machinery, and particularly relates to a rock coal tunneling host machine and a tunneling machine.
Background
In the tunneling operation in mines and underground engineering, the cantilever tunneling machine (comprising a longitudinal shaft type and a transverse shaft type) in the prior art rotates by using the center of a slewing bearing to do circular rotation, and the slewing platform swings up and down, so that the motion trail is overlapped by two circular rotations, namely horizontal rotation and vertical rotation; at present, the cutting head of the existing transverse shaft continuous mining machine and the digging and anchoring integrated machine can only swing up and down in the vertical direction, and then the cutting part integrally performs circular rotary motion on the horizontal plane, namely superposition of horizontal and vertical rotary motions.
The cantilever heading machine in the prior art has the following defects that the movement mode of the cantilever heading machine is overlapped with the rotation movement in the horizontal direction and the vertical direction, is overlapped with the two circular movements:
1. the existing cantilever heading machine (comprising a longitudinal shaft type and a transverse shaft type) rotates circumferentially by using a slewing bearing center, the extracted space is arc-shaped, a larger empty jacking distance exists when a steel belt is used for supporting, the requirement for the supporting to be tightly attached to a rock wall is unfavorable, and the radial gap is caused by the inherent arc-shaped space, belongs to an ineffective space and is extremely easy to cause roof accidents;
2. the existing transverse shaft continuous miner and the digging and anchoring integrated machine cutting head can only swing up and down, and the supporting part cutting pick is not covered; the left part and the right part are not provided with cutting picks, so that the left part and the right part are easy to be blocked in the rectangular space; the hardness of the cut rock is smaller;
in order to overcome the defects of the prior art, the tunneling host machine and the tunneling machine provided by the invention are superposition of horizontal rectilinear motion and vertical circular motion, so that the advantages of flexibility of the cantilever tunneling machine, high efficiency of the transverse shaft continuous mining machine and the tunneling and anchoring integrated machine are inherited, the defect that the cantilever tunneling machine cuts out an invalid space is overcome, and meanwhile, the defect that the hardness of rock cut by the transverse shaft continuous mining machine and the tunneling and anchoring integrated machine is low is overcome. The tunneling host and the tunneling machine provided by the invention have the following beneficial technical effects: (1) the safety of the construction site is increased; (2) improved mechanical efficiency; (3) flexibility of horizontal axis rock breaking is increased; (4) the horizontal axis rock breaking capacity is improved.
Disclosure of Invention
In order to achieve the above object, the present invention provides the following technical solutions.
A tunneling host comprises a cantilever working mechanism, a cantilever supporting mechanism, a hydraulic system and an electric system;
the cantilever working mechanism comprises a ditching roller big arm, a cutting head and a cutting driving device, wherein the cutting head and the cutting driving device are arranged at the tail end of the free end of the ditching roller big arm;
the cantilever supporting mechanism comprises a lifting device, a turning device, a ditching machine body pitching swinging beam and a machine body, and is used for supporting and driving the cantilever working mechanism to realize vertical and horizontal movement;
the ditching machine body pitching oscillating beams are hinged with the two side ends of the fixed end of the ditching roller big arm and the two side ends of the ditching machine body pitching oscillating beams respectively, and the ditching roller big arm, the ditching head frame oscillating beams and the ditching machine body pitching oscillating beams form a parallelogram link mechanism;
the ditching machine body pitching swinging beam is hinged with the machine body.
Further, according to the tunneling host machine, the rotating device comprises at least one horizontal swinging oil cylinder, and two ends of the horizontal swinging oil cylinder are respectively hinged with the ditching head frame swinging beam and the ditching body pitching swinging beam.
Further, in order to better realize the stability and reliability of horizontal swinging, the tunneling host machine comprises one or more pairs of horizontal swinging oil cylinders, wherein two ends of each horizontal swinging oil cylinder are respectively hinged with the swinging beam of the ditching head frame and the pitching swinging beam of the ditching machine body, and the one or more pairs of horizontal swinging oil cylinders are intersected in a left-right direction and are arranged in a crossed longitudinal column.
Further, as another embodiment for better realizing the stability and reliability of horizontal swing, the tunneling host machine as described above further comprises a frame, wherein the machine body is fixed on the frame, and the frame comprises supporting parts arranged at two sides of the swing beam of the ditching head frame; the turning device comprises at least one pair of horizontal swinging oil cylinders arranged on the outer side of the swinging beam of the ditching head frame, one end of each horizontal swinging oil cylinder is hinged with the adjacent swinging beam of the ditching head frame, and the other end of each horizontal swinging oil cylinder is connected with the supporting part of the frame.
Further, as another embodiment for better realizing the stability and reliability of horizontal swing, the tunneling host machine as described above further comprises a frame, and the machine body is fixed on the frame; the rotary device comprises a horizontal swing motor fixed on the frame and a screw pair in transmission connection with the horizontal swing motor, and a nut of the screw pair is fixedly connected with a ditching headstock swing beam.
Further, as another embodiment for better realizing the stability and reliability of horizontal swing, the tunneling host machine as described above further comprises a frame, and the machine body is fixed on the frame; the rotary device comprises a horizontal swing motor fixed on the frame, and a driving gear, a rack and a driven gear which are in transmission connection with the horizontal swing motor, wherein the driven gear is in transmission connection with a swing beam of the ditching headstock.
Further, as an implementation mode for better realizing the stability and reliability of vertical swing, the tunneling host machine comprises at least one lifting cylinder, one end of the lifting cylinder is hinged with the fixed end of the large arm of the ditching roller, and the other end of the lifting cylinder is connected with the machine body.
Further, in order to better realize the linear motion during horizontal swing, the tunneling host machine comprises a ditching machine body lower frame and a ditching machine body upper frame, wherein the ditching machine body lower frame is arranged on a base in a back-and-forth sliding manner, and two ends of a base oil cylinder driving the ditching machine body lower frame to slide are respectively connected with the base and the ditching machine body lower frame;
the ditching machine body upper frame is fixedly arranged on the ditching machine body lower frame upper portion, a shaft hole for installing a pitching oscillating shaft A is formed in a joint portion of the ditching machine body upper frame and the ditching machine body lower frame or any body, and the ditching machine body pitching oscillating beam is hinged with the machine body through the pitching oscillating shaft A.
Further, in order to better adapt to different rock-coal geological conditions, the main tunneling machine is provided, wherein the cutting head is any one of a horizontal-axis roller, a vertical-axis digging head or a drilling machine; in the case of a horizontal-axis drum,
cutting picks are arranged on two circular end surfaces at two ends of the roller;
the ditching headstock is arranged close to the fixed end of the big arm of the ditching roller, the cutting driving device is arranged in the ditching headstock, and the cutting driving device comprises a motor and a speed reducer.
The development machine comprises a development host, a loading and transporting mechanism and a travelling mechanism, wherein the development host is any one of the development hosts.
Drawings
The foregoing is merely an overview of the present invention, and the present invention is further described in detail below with reference to the accompanying drawings and detailed description.
Fig. 1 is a schematic perspective view of a tunneling host provided by the invention.
Fig. 2 is a schematic diagram of a side view structure of a tunneling host provided by the invention.
Fig. 3 is a schematic top view of the tunneling machine provided by the invention.
Fig. 4 is a schematic diagram of a rear view structure of a tunneling host provided by the invention.
Wherein, the names corresponding to the reference numerals are:
1. a base;
2. the ditching machine body is put down;
3. a ditching machine body frame;
4. pitching swinging beams of the ditching machine body;
5. lifting oil cylinder barrel of ditching headstock;
6. lifting oil cylinder rods of ditching headstock;
7. ditching headstock;
8. a ditching and coal mining motor;
9. a ditching roller big arm;
10. the ditching roller is arranged in the ditching roller;
11. a ditching roller edge;
12. a ditching headstock swinging beam;
13. a lifting cylinder shaft;
14. a base oil cylinder;
15. a base cylinder rod;
16. a base cylinder shaft;
17. a pitching oscillating shaft A;
18. a pitching oscillating shaft B;
19. a horizontal swing axis A;
20. a horizontal swing axis B;
21. a horizontal swing axis C;
22. a ditching head shaft;
23. a horizontal swing axis D;
24. a base cylinder advancing shaft;
25. a horizontal swing oil cylinder;
26. a horizontal swing cylinder rod;
27. a coal conveying channel.
Description of the embodiments
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
The structures, proportions, sizes, etc. of the present disclosure are shown and described only in conjunction with the present disclosure, and therefore should not be construed as limiting the scope of the invention, which is defined by the appended claims, without any technical essential importance, however, any structural modifications, proportional changes, or dimensional adjustments should fall within the scope of the present disclosure without affecting the efficacy or achievement of the present invention. Also, the terms such as "upper", "lower", "left", "right", "front", "rear", "middle" and "a" and the like are used in this specification for convenience of description, and are not intended to limit the scope of the present invention, but rather to change or adjust the relative relationship thereof without substantially changing the technical content, and are considered to be within the scope of the present invention.
The following examples are given by way of illustration only. Various embodiments may be combined and are not limited to only what is presented in the following single embodiment.
Referring to fig. 1 to 3, the tunneling host provided by the invention comprises a cantilever working mechanism, a cantilever supporting mechanism, a hydraulic system, an electric system and a frame; the cantilever working mechanism comprises a ditching roller big arm 9, a cutting head arranged at the tail end of the free end of the ditching roller big arm, and a cutting driving device for driving the cutting head; the cantilever supporting mechanism comprises a lifting device, a turning device, a ditching machine body pitching swinging beam 4 and a machine body, wherein the cantilever supporting mechanism is used for supporting and driving the cantilever working mechanism to realize vertical movement and horizontal movement, the lifting device is used for supporting and driving the cantilever working mechanism to realize vertical movement, and the turning device is used for supporting and driving the cantilever working mechanism to realize horizontal movement; the ditching machine body pitch swing beam comprises a ditching roller big arm 8, a ditching machine body pitch swing beam 4, a ditching head frame swing beam 12 and a ditching head frame swing beam 12, wherein the ditching head frame swing beams 12 are arranged in parallel, two ends of the ditching head frame swing beam 12 are respectively hinged with two side ends of the fixed end of the ditching roller big arm 8 and two side ends of the ditching machine body pitch swing beam 4, and the ditching roller big arm 9, the ditching head frame swing beam 12 and the ditching machine body pitch swing beam 4 form a parallelogram link mechanism; the ditching machine body pitching swinging beam 4 is hinged with the machine body.
The turning device comprises a horizontal swing oil cylinder 25, a horizontal swing oil cylinder rod 26, a horizontal swing shaft A19, a horizontal swing shaft B20, a horizontal swing shaft C21 and a horizontal swing shaft D23, and the turning device and the ditching head frame swing beam 12 are jointly used for supporting and driving a cantilever working mechanism to realize horizontal movement so as to drive the cutting head to horizontally swing.
The lifting device comprises a pitching oscillating shaft A17, a pitching oscillating shaft B18, a ditching headstock lifting oil cylinder barrel 5, a lifting oil cylinder shaft 13 and a ditching headstock lifting oil cylinder rod 6, and the lifting device and the ditching headstock pitching oscillating beam 4 are jointly used for supporting and driving a cantilever working mechanism to realize vertical movement so as to drive a cutting head to vertically oscillate.
Referring to fig. 1 to 4, the tunneling host provided by the invention comprises a cutting head, a large ditching roller arm 9, a ditching head frame 7, a ditching head frame swinging beam 12, a horizontal swinging oil cylinder barrel 25, a horizontal swinging oil cylinder rod 26, a horizontal swinging shaft a 19, a horizontal swinging shaft B20, a horizontal swinging shaft C21, a horizontal swinging shaft D23, a ditching body pitching swinging beam 4, a pitching swinging shaft a 17, a pitching swinging shaft B18, a ditching head frame lifting oil cylinder barrel 5, a lifting oil cylinder shaft 13, a ditching head frame lifting oil cylinder rod 6, a ditching body upper frame 3, a ditching body lower frame 2, a base 1, a base oil cylinder barrel 14, a base oil cylinder rod 15, a base oil cylinder shaft 16 and a base oil cylinder advancing shaft 24, wherein a coal conveying channel 27 is a part of the base 1.
Preferably, the cutting head can be a roller in a transverse shaft tunneling working mode, the roller comprises a ditching roller 10 and a ditching roller edge 11, a ditching coal mining motor 8 and a speed reducing mechanism are arranged in a ditching headstock 7, power is transmitted to a ditching head shaft 22 through a transmission mechanism in a ditching roller big arm 9, and the ditching head shaft 22 drives the roller to rotate. Preferably, cutting picks can be mounted on the two circular end surfaces at the two ends of the roller, namely, on the circular bottom surface outside the ditching roller edge 11, so as to improve the rock breaking capacity along the axial direction of the roller. Of course, the cutting head may adopt a different method such as a cutting head of a horizontal axis driving method or a vertical axis driving method, a drilling machine, or the like, in addition to the roller method.
Referring to fig. 1 to 3, the main shafts of the tunneling host provided by the invention are a lifting oil cylinder shaft 13, a base oil cylinder shaft 16, a pitching swinging shaft a 17, a pitching swinging shaft B18, a horizontal swinging shaft a 19, a horizontal swinging shaft B20, a horizontal swinging shaft C21, a ditching head shaft 22, a horizontal swinging shaft D23 and a base oil cylinder advancing shaft 24.
The ditching roller 10 and the ditching roller edge 11 are connected with the ditching roller big arm 9 through the ditching head shaft 22; preferably, the large arm 9 of the ditching roller is divided into a left ditching head frame 7 and a right ditching head frame, which are fixed on the front sides of the ditching coal mining motor 8 and have no movement relation; the ditching headstock 7 is internally provided with a ditching coal mining motor and an 8 speed reducing mechanism, and power is transmitted to a ditching head shaft 22 through a transmission mechanism in the big arm 9 of the ditching roller and drives the ditching roller 10 and the ditching roller edge 11 to rotate.
The ditching headstock 7 is connected with the ditching headstock swinging beam 12 through a horizontal swinging shaft C21; the ditching head frame swinging beam 12 is connected with the ditching machine body pitching swinging beam 4 through a horizontal swinging shaft D23.
Preferably, four groups of horizontal swinging oil cylinders are arranged, one ends of four horizontal swinging oil cylinder rods 26 of the four groups of horizontal swinging oil cylinders are respectively connected with the ditching head frame swinging beams 12 through horizontal swinging shafts B20, and one ends of four horizontal swinging oil cylinder barrels 25 are respectively connected with the ditching body pitching swinging beams 4 through horizontal swinging shafts B20; the four groups of horizontal swinging oil cylinders are intersected in pairs in the left-right direction to form crossed longitudinal arrangement.
Preferably, two groups of horizontal swinging oil cylinders are arranged, one ends of two horizontal swinging oil cylinder rods 26 of the two groups of horizontal swinging oil cylinders are respectively connected with the ditching head frame swinging beam 12 through horizontal swinging shafts B20, and one ends of two horizontal swinging oil cylinder barrels 25 are respectively connected with the ditching body pitching swinging beam 4 through horizontal swinging shafts B20; the two groups of horizontal swing cylinders are intersected in pairs in the left-right direction to form crossed longitudinal arrangement.
The horizontal swing cylinder includes a horizontal swing cylinder tube 25 and a horizontal swing cylinder rod 26.
One end of the pitching oscillating beam 4 of the ditching machine body is connected with the swinging beam 12 of the ditching head frame through a horizontal oscillating shaft D23, and the other end is connected with the upper frame 3 of the ditching machine body and the lower frame 2 of the ditching machine body through a pitching oscillating shaft A17; the pitching oscillating beam 4 of the ditching machine body is connected with the horizontal oscillating oil cylinder 25 through the horizontal oscillating shaft A19, the lower part of the pitching oscillating beam 4 of the ditching machine body is connected with the lifting oil cylinder rod 6 of the ditching head frame through the pitching oscillating shaft B18, wherein four groups of horizontal oscillating oil cylinders in the front side direction provide horizontal linear oscillation, and the lifting oil cylinder of the ditching head frame in the rear side direction provide vertical circumferential oscillation.
The ditching machine body upper frame 3 is arranged on the upper portion of the ditching machine body lower frame 2, the ditching machine body upper frame 3 and the ditching machine body lower frame 2 are tightly and fixedly assembled together, and a shaft hole is formed between the ditching machine body upper frame 3 and the ditching machine body lower frame 2 and used for installing a pitching swinging shaft A17. Specifically, the ditching machine body upper frame 3 and the ditching machine body lower frame 2 are in a tightly fixed assembly relationship, a shaft hole is reserved at the middle joint part of the ditching machine body upper frame 3 and the ditching machine body lower frame 2 after assembly, the shaft hole penetrates into the pitching oscillating shaft A17, and the ditching machine body pitching oscillating beam 4 is hinged with the pitching oscillating shaft A17 to form an up-down pitching motion relationship. Of course, the shaft hole can also be formed on the body of the ditching machine body upper frame 3 or on the body of the ditching machine body lower frame 2.
The ditching machine body lower frame 2 is connected to the base 1 through a groove-shaped interface, and has freedom of movement in the front-back direction.
One end of each ditching headstock lifting oil cylinder 5 is connected with the ditching machine body lower frame 2 through a lifting oil cylinder shaft 13, and each ditching headstock lifting oil cylinder rod 6 is connected to the lower part of each ditching machine body pitching oscillating beam 4 through a pitching oscillating shaft B18 to drive each ditching machine body pitching oscillating beam 4 to do incomplete circular movement of pitching up and down by taking a pitching oscillating shaft A17 as an axis.
The ditching head lifting oil cylinder comprises a ditching head lifting oil cylinder barrel 5 and a ditching head lifting oil cylinder rod 6.
Referring to fig. 1 to 4, the tunneling host provided by the invention is characterized in that a base oil cylinder for driving the machine body to walk forwards and backwards is arranged on a horizontally arranged base 1, so that the mining space range is further enlarged. The base oil cylinder comprises a base oil cylinder barrel 14 and a base oil cylinder rod 15, one end of the base oil cylinder barrel 14 is connected to the rear part of the base 1 through a base oil cylinder shaft 16, one end of the base oil cylinder rod 15 is connected to the lower frame 2 of the ditching machine body through a base oil cylinder advancing shaft 24, power for moving the lower frame 2 of the ditching machine body in the front-back direction is provided, and accordingly the ditching machine body is driven to drive the ditching roller big arm 9 and the cutting head to move in the front-back direction.
Referring to fig. 1 to 3, when the tunneling host provided by the invention horizontally swings, four horizontal swinging cylinders are arranged in a crossing way up and down, one cylinder is pulled when the other cylinder pushes, and as the large arm 9 of the ditching roller, the pair of ditching headstock swinging beams 12 and the pitching swinging beam 4 of the ditching machine body form parallelogram connecting rods to be connected, a parallelogram movement relationship is generated under the driving of the horizontal swinging cylinders, and the parallelogram connecting rod mechanism ensures that the ditching roller is always in a horizontal state, so that the ditching roller moves along the axis horizontal direction when swinging left and right, and the circle center is not rotated, so that the arc movement track is completely avoided, the arc excessive digging phenomenon is not caused, and the empty jacking distance is avoided.
When the tunneling host provided by the invention vertically swings, the ditching headstock lifting oil cylinders are horizontally arranged, the ditching body pitching swinging beam 4, the whole ditching roller large arm 9, the cutting head and the turning device for realizing horizontal swinging are controlled to do pitching movement, and the horizontal swinging oil cylinders and the ditching headstock lifting oil cylinders act together, namely, the superposition of horizontal swinging and vertical swinging, so that the volume of an operation space is effectively increased.
The base cylinder for realizing forward and backward walking of the machine body can be pushed to be flush with the lower frame 2 of the ditching machine body, so that the operation of the lower coal conveying channel 27 is not affected when the mechanism moves.
The tunneling host provided by the invention can drive the horizontal swing oil cylinder mechanism of the horizontal swing to be replaced by the oil cylinder to be a telescopic swing link mechanism, namely by a parallelogram link mechanism capable of performing telescopic and swinging two compound motions, and the power is provided by other external components, so that the main alternative schemes are as follows:
(1) The horizontal swinging oil cylinder mechanism is replaced by an external oil cylinder, one end of which is hinged with the swinging beam 12 of the ditching head frame, and the other end of which is connected with the fixed frame, and when the oil cylinder on one side pushes, the oil cylinder on the other side pulls to push the ditching roller to swing left and right; preferably, the tunneling host is provided with a frame, the machine body is fixed on the frame, and the frame comprises supporting parts which are arranged at two sides of the swinging beam of the ditching head frame and are basically horizontal to the swinging beam of the ditching head frame; one end of each horizontal swinging oil cylinder is respectively hinged with the adjacent swinging beam of the ditching headstock, and the other end is respectively connected with the supporting part of the frame.
(2) The horizontal swinging oil cylinder mechanism is replaced by a screw-nut transmission mechanism, a nut is arranged on the ditching head frame swinging beam 12, a motor drives a screw rod to rotate, the screw rod drives the screw rod to linearly move, and the ditching head frame swinging beam 12 moves along with the screw rod, so that the ditching roller is driven to swing left and right; preferably, the tunneling host is provided with a frame, the machine body is fixed on the frame, the horizontal swing motor is also fixed on the frame, the horizontal swing motor is in transmission connection with a coupler and a screw rod, a connecting nut is fixed on a ditching head frame swing beam, and the screw rod and the nut arranged on the ditching head frame swing beam form a screw rod pair.
(3) The horizontal swinging oil cylinder mechanism is replaced by a gear rack transmission mechanism, and the oil cylinder is replaced by gear transmission to stretch out and draw back; preferably, the tunneling host is provided with a frame, the machine body is fixed on the frame, a horizontal swing motor fixed on the frame is further arranged, the horizontal swing motor, the driving gear, the rack and the driven gear are sequentially connected in a transmission mode, and the driven gear is connected with the swinging beam of the ditching head frame in a transmission mode.
(4) The horizontal swinging oil cylinder mechanism is changed into motor driving, and the motor drives the ditching head frame swinging beam to move, so as to drive the ditching roller to swing left and right.
In addition, obviously, in the tunneling host provided by the invention, the horizontal swinging oil cylinder can be replaced by other devices such as a motor, an air cylinder, a motor and the like, so long as the large arm of the ditching roller and the cutting head can be driven to realize horizontal swinging; the lifting cylinder can be replaced by a connecting rod or a hydraulic supporting cylinder equivalently, so long as the lifting cylinder can drive the large arm of the ditching roller and the cutting head to realize vertical swing.
The invention provides a heading machine, which comprises the heading host in any embodiment, a shipment mechanism and a traveling mechanism.
The tunneling host and the tunneling machine provided by the invention have the following remarkable technical progress: 1. the horizontal swinging part adopts a connecting rod type parallel motion structure which is arranged in a crossing way, and the cutting part can horizontally move along the axis of the excavating roller, so that the arc-shaped over-excavation problem and the potential safety hazard are solved; 2. the horizontal swinging, the up-down pitching and the forward-backward walking movement in 3 dimensions are combined and overlapped, so that the mining range is fully expanded; 3. when the cutting head adopts a transverse shaft type roller tunneling mode, cutting picks can be arranged on two circular end faces of the roller, the flexibility of rock breaking along the axial direction of the roller is improved due to the arrangement of the cutting picks, 3 dimensional movements can be independently controlled and overlapped, and the flexibility of operation is greatly enhanced; meanwhile, as the roller moves along the linear track, an arc track is not generated on the tunneling working face, arc over-excavation and potential safety hazards are not caused, and the safety of a construction site is greatly improved; meanwhile, the mechanical efficiency is improved, the mining space is expanded, and the continuous mining amount is improved; 4. a coal conveying channel 27 is arranged between the lower frame of the ditching machine body and the base.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The tunneling host and the tunneling machine provided by the invention are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (10)
1. A tunneling host comprises a cantilever working mechanism, a cantilever supporting mechanism, a hydraulic system and an electric system;
the cantilever working mechanism comprises a cutting driving device, a ditching roller big arm and a cutting head arranged at the tail end of the free end of the ditching roller big arm;
the cantilever supporting mechanism comprises a lifting device, a turning device, a ditching machine body pitching swinging beam and a machine body, and is used for supporting and driving the cantilever working mechanism to realize vertical and horizontal movement;
it is characterized in that the method comprises the steps of,
the ditching machine body pitching oscillating beams are hinged with the two side ends of the fixed end of the ditching roller big arm and the two side ends of the ditching machine body pitching oscillating beams respectively, and the ditching roller big arm, the ditching head frame oscillating beams and the ditching machine body pitching oscillating beams form a parallelogram link mechanism;
the ditching machine body pitching swinging beam is hinged with the machine body.
2. A ripper host machine as in claim 1, wherein,
the rotary device comprises at least one horizontal swinging oil cylinder, and two ends of the rotary device are respectively hinged with the swinging beam of the ditching head frame and the pitching swinging beam of the ditching machine body.
3. A ripper host machine as in claim 2, wherein,
the rotary device comprises one or more pairs of horizontal swinging oil cylinders, two ends of each horizontal swinging oil cylinder are respectively hinged with the swinging beam of the ditching head frame and the pitching swinging beam of the ditching machine body, and the one or more pairs of horizontal swinging oil cylinders are intersected in pairs in the left-right direction and are arranged in a crossed longitudinal column.
4. A ripper host machine as in claim 1, wherein,
the machine body is fixed on the machine frame, and the machine frame comprises supporting parts arranged on two sides of the swinging beam of the ditching headstock;
the turning device comprises at least one pair of horizontal swinging oil cylinders arranged on the outer side of the swinging beam of the ditching head frame, one end of each horizontal swinging oil cylinder is hinged with the adjacent swinging beam of the ditching head frame, and the other end of each horizontal swinging oil cylinder is connected with the supporting part of the frame.
5. A ripper host machine as in claim 1, wherein,
the machine body is fixed on the frame;
the rotary device comprises a horizontal swing motor fixed on the frame and a screw pair in transmission connection with the horizontal swing motor, and a nut of the screw pair is fixedly connected with a ditching headstock swing beam.
6. A ripper host machine as in claim 1, wherein,
the machine body is fixed on the frame;
the rotary device comprises a horizontal swing motor fixed on the frame, and a driving gear, a rack and a driven gear which are in transmission connection with the horizontal swing motor, wherein the driven gear is in transmission connection with a swing beam of the ditching headstock.
7. A ripper host as in any one of claims 1 to 6 wherein,
the lifting device comprises at least one lifting oil cylinder, one end of the lifting oil cylinder is hinged with the fixed end of the large arm of the ditching roller, and the other end of the lifting oil cylinder is connected with the machine body.
8. A ripper host as in any one of claims 1 to 6 wherein,
the machine body comprises a ditching machine body lower frame and a ditching machine body upper frame, wherein the ditching machine body lower frame is arranged on the base in a front-back sliding manner, and two ends of a base oil cylinder driving the ditching machine body lower frame to slide are respectively connected with the base and the ditching machine body lower frame;
the ditching machine body upper frame is fixedly arranged on the ditching machine body lower frame upper portion, a shaft hole for installing a pitching oscillating shaft A is formed in the joint portion or any body of the ditching machine body upper frame and the ditching machine body lower frame, and the ditching machine body pitching oscillating beam is hinged with the machine body through the pitching oscillating shaft A.
9. A ripper host machine as in claim 8, wherein,
the cutting head is any one of a horizontal shaft type roller, a vertical shaft type digging head or a drilling machine; in the case of a transverse shaft type roller, cutting picks are arranged on two round end surfaces at two ends of the roller;
the ditching headstock is arranged close to the fixed end of the big arm of the ditching roller, the cutting driving device is arranged in the ditching headstock, and the cutting driving device comprises a motor and a speed reducer.
10. A heading machine comprises a heading host, a loading and transporting mechanism and a traveling mechanism, and is characterized in that,
the ripper host is a ripper host according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311120867.6A CN116838360B (en) | 2023-09-01 | 2023-09-01 | Tunneling host and tunneling machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311120867.6A CN116838360B (en) | 2023-09-01 | 2023-09-01 | Tunneling host and tunneling machine |
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| CN116838360B CN116838360B (en) | 2024-02-20 |
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|---|---|
| CN116838360B (en) | 2024-02-20 |
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