CN108457665B - Milling and digging type tunneling loader - Google Patents
Milling and digging type tunneling loader Download PDFInfo
- Publication number
- CN108457665B CN108457665B CN201710807834.7A CN201710807834A CN108457665B CN 108457665 B CN108457665 B CN 108457665B CN 201710807834 A CN201710807834 A CN 201710807834A CN 108457665 B CN108457665 B CN 108457665B
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- milling
- tool rest
- conveying
- digging
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- 238000003801 milling Methods 0.000 title claims abstract description 62
- 230000005641 tunneling Effects 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000005336 cracking Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000003137 locomotive effect Effects 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 210000000245 forearm Anatomy 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 11
- 238000011068 loading method Methods 0.000 abstract description 11
- 239000002689 soil Substances 0.000 abstract description 11
- 238000005422 blasting Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- E21D9/104—Cutting tool fixtures
-
- 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
- E21D9/108—Remote control specially adapted for machines for driving tunnels or galleries
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/126—Loading devices or installations
- E21D9/128—Loader-conveyors with gathering arms
Abstract
A milling and digging type tunneling loader relates to the field of engineering machinery. The device comprises a vehicle chassis, a milling and excavating feeding mechanism, a conveying and unloading mechanism, an electric control system, a hydraulic system and an operating mechanism thereof; the front end of the milling and digging feeding mechanism is provided with a blade type milling and digging head, the milling and digging head comprises a machine body frame and double-screw type knife rest which is arranged at the front end and can continuously rotate under power drive, the machine body frame is reinforced and welded by adopting a high-strength steel plate box body, the knife rest is formed by uniformly arranging knife stores on a knife shaft along a spiral line shape, and each knife store is provided with a detachable high-strength blade. The invention has simple structure, stable and efficient milling and loading, flexible movement, low failure rate, simple and convenient operation and maintenance and safe and reliable work; the continuous milling, digging, raking, conveying and loading operation can be realized on the section of the hard soil layer in the narrow roadway without adopting blasting, the section is smooth after construction, blasting use can be effectively reduced, safety of workers can be ensured more, construction cost is reduced, and construction time is shortened.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a milling and digging type tunneling loader applicable to mining and engineering construction.
Background
The existing excavating loader is a combined structure of a walking frame, a hydraulic mechanical arm and a conveyor. The working process is approximately as follows: firstly, blasting a hard soil layer or a rock section in an underground mine, then raking and loading the slag and stone crushed aggregates to a conveying mechanism by utilizing a bucket arranged at the front end of a hydraulic mechanical arm, conveying the materials to a transferring mine car by the conveying mechanism, and finally transferring the slag and stone crushed aggregates away by the mine car. However, the existing device has the following defects or limited use:
1. when the working section is hard and the soil cannot be excavated, if the existing excavating loader is used for working, the existing excavating loader needs to be blasted before working, and the blasting has a certain danger, so that the construction cost is correspondingly increased.
2. When the equipment is used for underground mines, the soil is relatively soft but difficult to excavate, collapse is very easy to happen if blasting is used at the moment, and the existing excavating loader is directly used for excavating materials, so that the production efficiency is greatly reduced, and the normal production requirement cannot be met.
3. For some underground roadways and municipal construction projects, the periphery of a tunnel needs to be repaired and leveled to be cement poured and reinforced, the section of the tunnel after the conventional excavating type loader works is difficult to ensure to be leveled, and the poured surface also needs to be repaired and leveled by using more specialized equipment after the excavation, so that manpower and material resources are consumed, and time is wasted.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a milling and digging type tunneling loader so as to realize direct operation on the section of a hard soil layer in a narrow roadway without blasting and to realize leveling of the section after construction.
In order to achieve the aim of the invention, the invention comprises a vehicle chassis, a milling and digging feeding mechanism, a conveying and unloading mechanism, an electric control system, a hydraulic system and an operating mechanism thereof;
the front end of the milling and digging feeding mechanism is provided with a blade type milling and digging head, a machine body frame is welded in a high-strength steel plate box type, the rear end of the machine body frame is provided with a connecting hole for connecting an inner connecting plate and a small arm, and the connecting hole is welded with a reinforcing sleeve capable of effectively preventing the connecting hole from cracking or deforming; the front end of the machine body frame is provided with a tool rest assembly, the tool rest assembly comprises a double-screw main tool rest, a supporting seat and an auxiliary tool rest, and the supporting seat is locked and fixed at the front end of the machine body frame through screws;
the tool rest assemblies are divided into two groups and more, and the tool rest assemblies are symmetrically distributed on the machine body frame; one end of the main tool rest is connected with the output end of the gear box, the input end of the gear box is connected with the power system, and the other end of the main tool rest is connected with the auxiliary tool rest through the supporting seat; the power provided by the power system is transmitted to the tool rest assembly through the gear box, and the main tool rest and the auxiliary tool rest rotate continuously in a spiral mode;
the main tool rest is matched with the shaft end of the cutter shaft and is fixed on the supporting seat by the axial limit of the elastic retainer ring, the outer end of the main tool rest is connected with the auxiliary tool rest, and the shaft end cover used for preventing the auxiliary tool rest from axially moving on the main tool rest is tightly pressed on the auxiliary tool rest;
a plurality of spirally distributed tool magazines are uniformly arranged on the cutter shaft of the main cutter frame, a high-strength blade is arranged in each tool magazine, and the blades are firmly connected with the tool magazines through outer hexagon screws and locknuts; a plurality of tool magazines are uniformly arranged on the cutter shaft of the auxiliary tool rest, high-strength blades are arranged in each tool magazine, and the blades are firmly connected with the tool magazines through outer hexagon screws and locknuts.
The chassis frame of vehicle chassis is formed by frame steel sheet welding, the front end of chassis frame has welded front connecting seat, back connecting seat respectively, front connecting seat is articulated with transport shedding mechanism front end gyration position, back connecting seat is articulated with carriage lift cylinder, track assembly is equipped with to the both sides of chassis frame, track assembly is walked around realizing through the power that hydraulic pressure walking motor provided and automobile body turns to, chassis frame internally mounted has motor, the radiator, the guide oil filter, the multiple unit valve, the monostable valve, the front end of motor is connected with the gear pump, install electronic box and oil tank about the track assembly respectively, oil return filter is installed to one of them port of oil tank, the rail guard is put to chassis frame rear portion, the shield is installed to chassis frame top.
The milling and digging feeding mechanism is clamped and fixed on the conveying and unloading mechanism through two side plates of the portal frame, a revolving body is clamped at the upper and lower cross beams of the portal frame, a multi-way reversing valve is arranged in the middle of the revolving body, two sides of the revolving body are hinged with two sides of the portal frame, a revolving cylinder is hinged with the rear end of a big arm, and a big arm cylinder is hinged between the lower part of the revolving body and the big arm; the front end of the big arm is hinged with the rear end of the small arm, a small arm oil cylinder is hinged between the big arm and the small arm, the front end of the small arm is respectively hinged with one end of the outer connecting plate and the lower end of the blade type milling and digging head, the upper end of the blade type milling and digging head is hinged with one end of the inner connecting plate, the other end of the inner connecting plate is hinged with one end of the outer connecting plate and the front end of the bucket oil cylinder, and the rear end of the bucket oil cylinder is hinged on the small arm; the control console is hung on the left side of the portal frame, a pilot control handle is arranged on the upper portion of the control console, and a walking pedal, a pilot control valve, a hydraulic roller control valve and a starting switch are arranged on the lower portion of the control console.
The conveying and unloading mechanism is connected to the chassis of the vehicle through front and rear hinged shafts, the front part of the conveying frame is hinged with the front connecting seat through the hinged shafts on the two sides, and the rear end of the conveying frame is hinged with the rear connecting seat through the lifting oil cylinders on the two sides of the conveying frame; the collecting shovel port is arranged at the forefront end of the conveying frame; the baffle plate is arranged at the upper part of the conveying frame; the driven roller is arranged at the lower part of the collecting shovel opening; the movable frame and the adjusting frame form an integral conveying mechanism which is arranged at the rearmost end of the conveying frame; the tail end of the adjusting frame is provided with a hydraulic roller driven by a hydraulic motor; the belt elastic tensioning device is arranged between the movable frame and the adjusting frame; the riding wheel device is arranged below the conveying belt; the baffle pulleys are arranged on two sides of the conveying belt; the elastic scraping plate device is arranged at the lower part of the adjusting frame.
The electric control system consists of an electric leakage breaker, a time relay, an alternating current contactor, a contact relay, a motor comprehensive protector, an axial flow fan, a locomotive lamp, a breaker, button control, a control transformer, a main wire, a control wire, a motor and an electric box.
The hydraulic system and the operating mechanism thereof consist of a one-way throttle valve, a two-way throttle valve, a milling and digging motor, a direct-acting pilot valve, a two-position distributing valve, a liquid level meter, an air filter, an oil absorption filter, a gear pump, a motor, a hydraulic walking motor, an oil tank, an oil return filter, a radiator, a pilot oil filter, a multi-way valve, a monostable valve, a bucket cylinder, a small arm cylinder, a large arm cylinder, a rotary cylinder, a pilot control handle, a walking pedal, a blade type milling and digging head, a hydraulic cylinder control valve, a conveying frame lifting cylinder and a hydraulic motor.
The vehicle chassis may also employ a hydraulic motor driven tire chassis.
The integral conveying mechanism can also be a folding conveying mechanism, and the folding conveying mechanism is a folding adjusting frame connected to the rear part of the movable frame.
Compared with the prior art, the milling and excavating device has the advantages of novel structural design, simple structure, stable and efficient milling and excavating loading, flexible movement, low failure rate, simple and convenient operation and maintenance and safe and reliable work. The working position adopts the blade type milling head to replace the bucket, continuous milling, raking, conveying and loading operation can be realized on the section of the hard soil layer in the narrow roadway without blasting, the section after construction is smooth, blasting use can be effectively reduced, meanwhile, the safety of constructors is also ensured more, the construction cost is correspondingly reduced, and the construction time is shortened. The method is mainly suitable for mining, milling and loading operations of coal mines, phosphate ores, iron ores, copper ores and gold ores, and hard soil layer collecting and loading operations in tunnel engineering such as railway, highway, water conservancy, national defense and the like, and can also be used for loading operations of open-air scattered materials.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic view of the vehicle chassis of fig. 1.
Fig. 3 is a schematic diagram of the milling and feeding mechanism of fig. 1.
Fig. 4 is a schematic view of the conveyor discharge mechanism of fig. 1.
Fig. 5 is a schematic view of the cutting head of fig. 3.
Fig. 6 is an exploded schematic view of the carriage assembly of fig. 5.
Fig. 7 is a schematic diagram of the electrical control system of the present invention.
Fig. 8 is a schematic diagram of the hydraulic control system of the present invention.
Description of the embodiments
As shown in fig. 1, the invention provides a milling-digging type tunneling loader, which comprises a vehicle chassis 1, a milling-digging feeding mechanism 2, a conveying and unloading mechanism 3, an electric control system 4, a hydraulic system and an operating mechanism 5 thereof. The continuous milling, digging, raking, conveying and loading operation can be realized on the section of the hard soil layer in the narrow tunnel without adopting blasting, and the section after construction is smoother.
As shown in fig. 2, the vehicle chassis can realize complete machine walking, steering and braking, and mainly comprises a track assembly 11, a gear pump 12, a motor 13, a hydraulic walking motor 14, an oil tank 15, an oil return filter 16, a guard rail 17, a radiator 18, a rear connecting seat 19, an electric box 20, a pilot oil filter 21, a multi-way valve 22, a front connecting seat 23, a monostable valve 24, a chassis frame 25 and a protective cover plate 26. The chassis frame 25 is formed by welding frame-type steel plates, a front connecting seat 23 and a rear connecting seat 19 are respectively welded at the front end and the rear end of the chassis frame 25, wherein the front connecting seat 23 is hinged with the front end rotation part of the conveying and unloading mechanism 3, and the rear connecting seat 19 is hinged with the conveying frame lifting oil cylinder 53; the crawler belt assembly 11 is installed on two sides of the chassis frame 25, the crawler belt assembly 11 can realize forward and backward walking and vehicle body steering through power provided by the hydraulic walking motor 14, the motor 13, the radiator 18, the pilot oil filter 21, the multi-way valve 22 and the monostable valve 24 are installed in the chassis frame 25, the gear pump 12 is connected to the front end of the motor 13, the electric box 20 and the oil box 15 are installed on the left and right sides above the crawler belt assembly 11 respectively, the oil return filter 16 is installed at one port of the oil box 15, the guard rail 17 is arranged at the rear of the chassis frame 25, and the protective cover plate 26 is installed after installation and debugging of each component is completed. The vehicle chassis may also employ a hydraulic motor driven tire chassis.
As shown in fig. 3, the milling and digging feeding mechanism collects the materials stacked in front of the complete machine into the conveying and unloading mechanism, and is convenient for the conveying and unloading mechanism to convey the materials to the transport vehicle, and has the functions of rotation, digging, raking and loading and the like, and mainly comprises a blade type milling head 30, an inner connecting plate 31, an outer connecting plate 32, a bucket cylinder 33, a small arm 34, a large arm 35, a small arm cylinder 36, a large arm cylinder 37, a revolving body 38, a portal frame 39, a revolving cylinder 40, a multi-way reversing valve 41, a pilot control handle 42, a traveling pedal 43, a pilot control valve 44, a hydraulic roller control valve 45, a starting switch 46 and a driver console 47. The milling and digging feeding mechanism is clamped and fixed on the conveying and unloading mechanism 3 through two side plates of a portal frame 39, a revolving body 38 is clamped at the upper and lower cross beams of the portal frame 39, a multi-way reversing valve 41 is arranged in the middle of the revolving body, revolving cylinders 40 are hinged to two sides of the portal frame 39, the upper part of the revolving body 38 is hinged to the rear end of a large arm 35, and a large arm cylinder 37 is hinged between the lower part of the revolving body 38 and the large arm 35; the front end of the large arm 35 is hinged with the rear end of the small arm 34, a small arm oil cylinder 36 is hinged between the large arm 35 and the small arm 34, the front end of the small arm 34 is respectively hinged with one end of the outer connecting plate 32 and the lower end of the blade type milling and digging head 30, the upper end of the blade type milling and digging head 30 is hinged with one end of the inner connecting plate 31, the other end of the inner connecting plate 31 is hinged with one end of the outer connecting plate 32 and the front end of the bucket oil cylinder 33, and the rear end of the bucket oil cylinder 33 is hinged on the small arm 34; a control console 47 is hung on the left side of the portal frame 39, a pilot control handle 42 is arranged on the upper portion of the control console 47, and a traveling pedal 43, a pilot control valve 44, a hydraulic cylinder control valve 45 and a start switch 46 are arranged on the lower portion of the control console 47.
As shown in fig. 4, the conveying and unloading mechanism conveys the materials collected by the milling and digging feeding mechanism to the rear section of the conveying and unloading mechanism through a conveying belt 61, and falls into a transport vehicle, and has the functions of pushing and shoveling, collecting, receiving, conveying, unloading, lifting and the like, and mainly comprises a driven roller 50, a collecting shovel opening 51, a conveying frame 52, a conveying frame lifting cylinder 53, a baffle plate 54, a movable frame 55, a belt elastic tensioning device 56, a riding wheel device 57, an elastic scraping plate device 58, an adjusting frame 59, a baffle wheel 60, a conveying belt 61, a hydraulic motor 62 and a hydraulic roller 63. The conveying and unloading mechanism is connected to the chassis of the vehicle through front and rear hinged shafts, the front part of the conveying frame 52 is hinged with the front connecting seat 23 through the hinged shafts on the two sides, and the rear end of the conveying frame is hinged with the rear connecting seat 19 through the lifting oil cylinders 53 of the conveying frame on the two sides; the collecting shovel opening 51 is arranged at the forefront end of the conveying frame 52; the striker plate 54 is mounted on the upper portion of the carriage 52; the driven roller 50 is arranged at the lower part of the collecting shovel opening 51; the movable frame 55 and the adjusting frame 59 form an integral conveying mechanism which is arranged at the rearmost end of the conveying frame 52, and the integral conveying mechanism can also be a folding conveying mechanism, and the folding conveying mechanism is that the rear part of the movable frame 55 is connected with the folding adjusting frame 59; the end of the adjusting bracket 59 is provided with a hydraulic roller 63 driven by a hydraulic motor 62; the belt elastic tensioning device 56 is installed between the movable frame 55 and the adjusting frame 59; the riding wheel device 57 is arranged below the conveying belt 61; the baffle pulleys 60 are arranged on two sides of the conveying belt 61; the elastic scraper device 58 is mounted at the lower part of the adjusting frame 59.
As shown in fig. 5 and 6, the front end of the milling and digging feeding mechanism is provided with a blade type milling and digging head, the machine frame 97 of the milling and digging feeding mechanism is reinforced and welded by adopting a high-strength steel plate box body, the rear end of the machine frame 97 is provided with a plurality of connecting holes 101 for connecting the milling and digging machine arm, and the connecting holes 101 are welded with reinforcing sleeves, so that the cracking or deformation of the connecting holes 101 can be effectively prevented, and the blade type milling and digging head works more stably and reliably; the front end of the frame 97 is provided with a tool rest assembly 98 capable of continuously rotating under power driving, the tool rest assembly 98 comprises a double-screw main tool rest 103, a supporting seat 104 and an auxiliary tool rest 105, when the cutter is in operation, the main tool rest 103 and the auxiliary tool rest 105 continuously rotate under power driving, a milling cutter 109 separates a hard soil layer, soil layers are automatically collected to the middle position of a blade type milling cutter through the screw tool rest, and when the cutter is matched with an excavating loader, two-in-one milling and loading can be realized.
The cutter frame assembly 98 is divided into two groups and more, the cutter frame assembly 98 is symmetrically distributed on the machine frame 97, and the design can ensure that the stress on the two sides is equal when the milling and digging machine works, the structure is attractive, and meanwhile, the service life of the milling and digging machine is prolonged; one end of the main tool rest 103 is connected with the output end of the gear box 100, the other end is connected with the auxiliary tool rest 105 through the supporting seat 104, and the input end of the gear box 100 is connected with the power system 99; the power provided by the power system 99 is transmitted to the main tool rest 103 and the auxiliary tool rest 105 through the gear box 100, so that the main tool rest 103 and the auxiliary tool rest 105 continuously rotate in a spiral mode, and when the power system 99 provides power output, the transmission force through the gear box 100 is proportionally amplified, and meanwhile the rotating speed of the main tool rest 103 and the auxiliary tool rest 105 is correspondingly reduced. The arrangement of the auxiliary tool rests 105 on two sides can play a certain role in protecting the supporting seat 104, if the auxiliary tool rests 105 on two sides are not arranged, when the milling and digging machine works, the supporting seat 104 can directly contact and collide with a hard soil layer, so that the deformation of the tool rest assembly 98 influences the normal use of the blade type milling and digging head.
The main tool rest 103 is matched with the shaft end of the cutter shaft 112 and is fixed on the supporting seat 104 by the axial limit of the elastic retainer ring 111, the outer end of the main tool rest 103 is connected with the auxiliary tool rest 105, and the shaft end cover 106 is tightly pressed on the auxiliary tool rest 105 for preventing the auxiliary tool rest 105 from axially moving on the main tool rest 103. Each structure of the machine body is connected with the key pin through the screw, so that the positioning accuracy between each part can be ensured, and meanwhile, the stability of connection and the convenience of disassembly and maintenance can be ensured.
A plurality of thickened tool magazines 108 which are spirally distributed are uniformly arranged on a cutter shaft 112 of the main tool rest 103, a high-strength blade 109 is arranged in each tool magazine 108, the blade 109 is firmly connected with the tool magazines 108 through an outer hexagon screw 107 and a locknut 110, and the cutter is not easy to loosen in working; a plurality of tool magazines 108 are uniformly arranged on the cutter shaft of the auxiliary tool rest 105, a high-strength blade 109 is arranged in each tool magazine 108, and the blade 109 is firmly connected with the tool magazines 108 through an outer hexagon screw 107 and a locknut 110. The locknut 110 is adopted, so that the connection between the milling cutter blade 109 and the cutter magazine 108 is firmer, the cutter blade 109 is not easy to loose in the working process, when the cutter blade 109 is worn and needs to be replaced, the outer hexagon screw 107 can be directly loosened to replace the new cutter blade 109, so that the replacement and maintenance of the cutter blade 109 are more convenient, meanwhile, the distance between the front end of the cutter blade 109 and the cutter shaft 112 is larger, materials can be effectively prevented from being attached to the cutter shaft 112, and the normal use of equipment is affected.
The support base 104 is fixed to the front end of the body frame 97 by locking a plurality of screws 102.
As shown in fig. 7, the electrical control system mainly includes an earth leakage breaker 85, a time relay 86, an ac contactor 87, a contact relay 88, a motor integrated protector 89, an axial fan 90, a locomotive lamp 91, a breaker 92, a button control 93, a control transformer 94, a main electric wire 95, a control electric wire 96, a motor 13, and an electric box 20.
As shown in fig. 8, the hydraulic system and its operating mechanism mainly comprises a one-way throttle valve 71, a two-way throttle valve 72, a milling motor 73, a direct-acting pilot valve 74, a two-position distributing valve 75, a liquid level meter 76, an air cleaner 77, an oil suction filter 78, a gear pump 12, a motor 13, a hydraulic traveling motor 14, an oil tank 15, an oil return filter 16, a radiator 18, a pilot oil filter 21, a multi-way valve 22, a monostable valve 24, a bucket cylinder 33, a forearm cylinder 36, a boom cylinder 37, a swivel cylinder 40, a pilot control handle 42, a traveling pedal 43, a blade type milling head and hydraulic cylinder control valve 45, a carriage lifting cylinder 53, and a hydraulic motor 62.
Claims (6)
1. A milling and digging type tunneling loader comprises a vehicle chassis (1), a milling and digging feeding mechanism (2), a conveying and unloading mechanism (3), an electric control system (4), a hydraulic system and an operating mechanism (5) thereof; the method is characterized in that:
the front end of the milling and digging feeding mechanism (2) is provided with a blade type milling and digging head (30), a machine body frame (97) of the milling and digging feeding mechanism is welded in a high-strength steel plate box type, the rear end of the machine body frame (97) is provided with a connecting hole (101) for connecting an inner connecting plate (31) and a small arm (34), and the connecting hole (101) is welded with a reinforcing sleeve capable of effectively preventing the connecting hole from cracking or deforming; the front end of the machine body frame (97) is provided with a tool rest assembly (98), the tool rest assembly (98) comprises a double-screw main tool rest (103), a supporting seat (104) and an auxiliary tool rest (105), and the supporting seat (104) is locked and fixed at the front end of the machine body frame (97) through a screw (102);
the number of the tool rest assemblies (98) is two or more, and the tool rest assemblies (98) are symmetrically distributed on the machine body frame (97); one end of the main tool rest (103) is connected with the output end of the gear box (100), the input end of the gear box (100) is connected with the power system (99), and the other end of the main tool rest (103) is connected with the auxiliary tool rest (105) through the supporting seat (104); the power provided by the power system (99) is transmitted to the tool rest assembly (98) through the gear box (100), and the main tool rest (103) and the auxiliary tool rest (105) rotate continuously in a spiral mode;
the main tool rest (103) is matched with the shaft end of the cutter shaft (112) and is fixed on the supporting seat (104) by using the axial limit of the elastic retainer ring (111), the outer end of the main tool rest (103) is connected with the auxiliary tool rest (105), and the shaft end cover (106) used for preventing the auxiliary tool rest (105) from axially moving on the main tool rest (103) is pressed on the auxiliary tool rest (105);
a plurality of spirally distributed tool magazines (108) are uniformly arranged on a cutter shaft (112) of the main tool rest (103), high-strength blades (109) are arranged in each tool magazine (108), and the blades (109) are firmly connected with the tool magazines (108) through outer hexagon screws (107) and locknuts (110); a plurality of tool magazines (108) are uniformly arranged on the cutter shaft of the auxiliary tool rest (105), high-strength blades (109) are arranged in each tool magazine (108), and the blades (109) are firmly connected with the tool magazines (108) through outer hexagon screws (107) and locknuts (110);
the chassis frame (25) of the vehicle chassis (1) is formed by welding frame-type steel plates, a front connecting seat (23) and a rear connecting seat (19) are respectively welded at the front end and the rear end of the chassis frame (25), the front connecting seat (23) is hinged with the front end rotation part of the conveying and discharging mechanism (3), the rear connecting seat (19) is hinged with a conveying frame lifting cylinder (53), track assemblies (11) are arranged at two sides of the chassis frame (25), the track assemblies (11) realize front and rear walking and vehicle body steering through power provided by a hydraulic walking motor (14), a motor (13), a radiator (18), a pilot oil filter (21), a multi-way valve (22) and a monostable valve (24) are arranged in the chassis frame (25), the front end of the motor (13) is connected with a gear pump (12), an electric box (20) and an oil tank (15) are respectively arranged above and left and right above the track assemblies (11), one port of the oil tank (15) is provided with an oil return filter (16), the rear part of the chassis frame (25) is provided with a protective rail (17), and a protective cover plate (26) is arranged above the chassis frame (25);
the milling and digging feeding mechanism (2) is clamped and fixed on the conveying and unloading mechanism (3) through two side plates of a portal frame (39), a revolving body (38) is clamped at the upper and lower cross beams of the portal frame (39) and a multi-way reversing valve (41) is arranged in the middle of the portal frame, revolving cylinders (40) are hinged to two sides of the revolving body (38) and two sides of the portal frame (39), the upper part of the revolving body (38) is hinged to the rear end of a big arm (35), and a big arm cylinder (37) is hinged between the lower part of the revolving body (38) and the big arm (35); the front end of the big arm (35) is hinged with the rear end of the small arm (34), a small arm oil cylinder (36) is hinged between the big arm (35) and the small arm (34), the front end of the small arm (34) is respectively hinged with one end of the outer connecting plate (32) and the lower end of the blade type milling and digging head (30), the upper end of the blade type milling and digging head (30) is hinged with one end of the inner connecting plate (31), the other end of the inner connecting plate (31) is hinged with one end of the outer connecting plate (32) and the front end of the bucket oil cylinder (33), and the rear end of the bucket oil cylinder (33) is hinged on the small arm (34); the control console (47) is hung on the left side of the portal frame (39), a pilot control handle (42) is arranged on the upper portion of the control console (47), and a walking pedal (43), a pilot control valve (44), a hydraulic roller control valve (45) and a starting switch (46) are arranged on the lower portion of the control console (47).
2. A milling and digging type tunneling loader according to claim 1 and characterized by: the conveying and unloading mechanism (3) is connected to the vehicle chassis (1) through front and rear hinged shafts, the front part of the conveying frame (52) is hinged with the front connecting seat (23) through the hinged shafts on the two sides, and the rear end of the conveying frame is hinged with the rear connecting seat (19) through the lifting oil cylinders (53) of the conveying frame on the two sides; the collecting shovel opening (51) is arranged at the forefront end of the conveying frame (52); the striker plate (54) is arranged at the upper part of the conveying frame (52); the driven roller (50) is arranged at the lower part of the collecting shovel opening (51); the movable frame (55) and the adjusting frame (59) form an integral conveying mechanism which is arranged at the rearmost end of the conveying frame (52); the tail end of the adjusting frame (59) is provided with a hydraulic roller (63) driven by a hydraulic motor (62); the belt elastic tensioning device (56) is arranged between the movable frame (55) and the adjusting frame (59); the riding wheel device (57) is arranged below the conveying belt (61); the baffle pulleys (60) are arranged at two sides of the conveying belt (61); the elastic scraper device (58) is arranged at the lower part of the adjusting frame (59).
3. A milling and digging type tunneling loader according to claim 1 and characterized by: the electric control system (4) is composed of an electric leakage breaker (85), a time relay (86), an alternating current contactor (87), a contact relay (88), a motor comprehensive protector (89), an axial flow fan (90), locomotive lamps (91), a breaker (92), button control (93), a control transformer (94), a main electric wire (95), a control electric wire (96), a motor (13) and an electric box (20).
4. A milling and digging type tunneling loader according to claim 1 and characterized by: the hydraulic system and the operating mechanism (5) thereof are composed of a one-way throttle valve (71), a two-way throttle valve (72), a milling motor (73), a direct-acting pilot valve (74), a two-position distributing valve (75), a liquid level meter (76), an air filter (77), an oil suction filter (78), a gear pump (12), a motor (13), a hydraulic walking motor (14), an oil tank (15), an oil return filter (16), a radiator (18), a pilot oil filter (21), a multi-way valve (22), a monostable valve (24), a bucket cylinder (33), a forearm cylinder (36), a big arm cylinder (37), a rotary cylinder (40), a pilot control handle (42), a walking pedal (43), a blade type milling head (30), a hydraulic cylinder control valve (45), a conveying frame lifting cylinder (53) and a hydraulic motor (62).
5. A milling and digging type tunneling loader according to claim 1 and characterized by: the vehicle chassis (1) adopts a hydraulic motor driving type tire chassis.
6. A milling and digging type tunneling loader according to claim 2 and characterized by: the integral conveying mechanism is foldable, and the rear part of the folding conveying mechanism is a movable frame (55) and is connected with a foldable adjusting frame (59).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807834.7A CN108457665B (en) | 2017-09-08 | 2017-09-08 | Milling and digging type tunneling loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807834.7A CN108457665B (en) | 2017-09-08 | 2017-09-08 | Milling and digging type tunneling loader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108457665A CN108457665A (en) | 2018-08-28 |
| CN108457665B true CN108457665B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710807834.7A Active CN108457665B (en) | 2017-09-08 | 2017-09-08 | Milling and digging type tunneling loader |
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| Country | Link |
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| CN (1) | CN108457665B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520155B (en) * | 2020-04-28 | 2022-05-31 | 陕西煤业化工技术研究院有限责任公司 | Multifunctional roadway repairing machine and construction method thereof |
| CN112145192A (en) * | 2020-08-17 | 2020-12-29 | 中铁工程服务有限公司 | Soft rock tunnel boring machine and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991018185A1 (en) * | 1990-05-14 | 1991-11-28 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH | Method and machine for excavating drifts, tunnels, stopes, caverns or the like |
| CN103590838A (en) * | 2013-08-22 | 2014-02-19 | 襄阳忠良工程机械有限责任公司 | Heading and loading machine for drilling and digging |
| CN105804764A (en) * | 2016-03-14 | 2016-07-27 | 中国矿业大学 | Drilling and bursting type heading machine |
| CN207177907U (en) * | 2017-09-08 | 2018-04-03 | 襄阳忠良工程机械有限责任公司 | Formula driving loading machine is dug in milling |
-
2017
- 2017-09-08 CN CN201710807834.7A patent/CN108457665B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991018185A1 (en) * | 1990-05-14 | 1991-11-28 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH | Method and machine for excavating drifts, tunnels, stopes, caverns or the like |
| CN103590838A (en) * | 2013-08-22 | 2014-02-19 | 襄阳忠良工程机械有限责任公司 | Heading and loading machine for drilling and digging |
| CN105804764A (en) * | 2016-03-14 | 2016-07-27 | 中国矿业大学 | Drilling and bursting type heading machine |
| CN207177907U (en) * | 2017-09-08 | 2018-04-03 | 襄阳忠良工程机械有限责任公司 | Formula driving loading machine is dug in milling |
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| Publication number | Publication date |
|---|---|
| CN108457665A (en) | 2018-08-28 |
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