CN101811466B - Control system of engineering bridge transport vehicle - Google Patents
Control system of engineering bridge transport vehicle Download PDFInfo
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- CN101811466B CN101811466B CN 201010113719 CN201010113719A CN101811466B CN 101811466 B CN101811466 B CN 101811466B CN 201010113719 CN201010113719 CN 201010113719 CN 201010113719 A CN201010113719 A CN 201010113719A CN 101811466 B CN101811466 B CN 101811466B
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Abstract
The invention relates to a control system of an engineering bridge transport vehicle, in particular to a control system of an engineering bridge transport vehicle, which can realize the two-way running of the vehicle. The control system comprises a clutch control mechanism, a brake control mechanism, an accelerator control mechanism, a steering wheel, a variable speed control mechanism and seats, and is characterized in that the clutch control mechanism, the brake control mechanism and the accelerator control mechanism are two-way operation structures, the steering wheel is fixed on a control work platform, the seat for forward running and the seat for reverse running are symmetrically fixed in the forward direction and the reverse direction of the steering wheel, a forward clutch pedal of the clutch control mechanism is connected with the left bottom part of the seat for forward running, the reverse clutch pedal of the clutch control mechanism is connected with the left bottom part of the seat for reverse running, and two pedals of the accelerator control mechanism are respectively connected with the right bottom part of the seat for forward running and the right bottom part of the seat for reverse running. The invention realizes the two-way control of the bridge transport vehicle, thereby realizing the two-way running of the vehicle, enables the co-driver to face the running direction so as to improve the running safety, and makes the bridge transport vehicle realize the two-way brake control function, thereby realizing the two-way control of the bridge transport vehicle and two-way brake.
Description
Technical field
The present invention relates to a kind of maneuvering system of engineering bridge transport vehicle, particularly a kind of maneuvering system that can realize the engineering bridge transport vehicle of vehicle two way.
Background technology
At present, along with the national policy adjustment, the pulling domestic demand is accelerated capital construction, and building railway bridge, road bridge and city construction engineering quantity increases, and speeds up.It is blank that bridge transport vehicle increase in demand in this type of engineering construction, the especially carrier bar weight domestic maker of girder carrier between 100 tons ~ 300 tons almost belongs to.The transportation major part of this type of beam is that some repair plants that do not have designed capacity are according to actual operating needs; The purchase second-hand car is changed a social system and is formed; In work progress main car and trailer two cars one in front and one in back, front truck is in the forward travel state, back car is in neutral gear backward state.Its not enough main the performance as follows:
1, the maneuvering system of conventional truck comprises the workplatform of clutch control, brake operation, speed change manipulation and power control and four maneuvering systems of support; This four systems all is unidirectional manipulation; Service platform is only supported unidirectional manipulation, and in vehicle fortune beam operation process, back car chaufeur can only be observed the cooperation of front truck travel situations according to back mirror and go; After lifting beam machine was mentioned bridge, front truck need be moveed backward and rolled roadbed away from simultaneously.Cause fortune beam operational difficulty, have the defective of road-holding property difference.
2, traditional engineering bridge transport vehicle, clutch control, employing be unidirectional manipulation; When main car and secondary car participate in transporting the bridge operation simultaneously; Secondary car is being down to go, and secondary car chaufeur utilizes vehicle rearview sem observation master car to go situation so that cooperate the transportation bridge back to travel direction; Observe main car, cooperate the inconvenience of going, have potential safety hazard.
3, traditional engineering bridge transport vehicle brake system, the service brake and the stopping brake that adopt full wheel to participate in, a support unit one-way traffic; When main car and secondary car participate in transporting the bridge operation simultaneously; Secondary car is being down to go, and secondary car chaufeur utilizes vehicle rearview sem observation master car to go situation so that cooperate the transportation bridge back to travel direction; Observe main car, cooperate the inconvenience of going, have potential safety hazard.
Summary of the invention
One of the object of the invention provides the maneuvering system of engineering bridge transport vehicle, and it makes bridge transport vehicle realize both-way operation, thereby realizes the two way of vehicle.
Two of the object of the invention provides the maneuvering system of engineering bridge transport vehicle, and it makes secondary car chaufeur towards travel direction, improves driving safety.
Three of the object of the invention provides the maneuvering system of engineering bridge transport vehicle, and it makes bridge transport vehicle realize the bi-directional braking operating function, thereby realizes the both-way operation of bridge transport vehicle, realizes bi-directional braking.
Technical scheme of the present invention is: the maneuvering system that a kind of engineering bridge transport vehicle is provided; It comprises clutch operation, brake operation mechanism, manipulating mechanism of oil throttle, bearing circle, selector gear and seat; It is characterized in that: clutch operation, brake operation mechanism, manipulating mechanism of oil throttle are the bidirectional operation structures; Bearing circle is fixed on to be handled on the workplatform; Bearing circle forward and reverse symmetry are fixed with forward travel and use seat with seat and backward going; The forward clutch pedal of clutch operation is connected the left bottom of forward travel with seat; The reverse clutch pedal of clutch operation is connected the left bottom of backward going with seat; The stretcher of two manipulating mechanism of oil throttle be connected to forward travel with bottom, the right side of seat and backward going bottom the right side of seat, the footbrake plate of two brake operation mechanisms connects respectively between the stretcher of two pedal of clutchs and manipulating mechanism of oil throttle, the joystick of selector gear is arranged in positive operation platform right side.
The bidirectional operation structure of described clutch operation; Adopt the identical symmetrical bonded assembly both-way operation of structure mechanism, which comprises at least reverse clutch pedal, forward clutch pedal, reversible control fluid reservoir and pipeline, forward and handle operate the clutch master cylinder, reversible control hand control valve (HCV), forward of fluid reservoir and pipeline, reversible control clutch mass cylinder, forward and handle hand control valve (HCV), T-pipe joint; Forward is handled fluid reservoir and pipeline and is connected forward with rubber tube and joint and operates the clutch on the master cylinder; Forward clutch pedal bolt together is on forward operates the clutch master cylinder; Simultaneously the forward master cylinder that operates the clutch is connected forward with rubber tube and joint and handles on the hand control valve (HCV); Forward is handled hand control valve (HCV) and is connected on the T-pipe joint with rubber tube and adaptor union, is connected with clutch power-assisted cylinder interface with pipe through T-pipe joint; The symmetrical bonded assembly reversible control of same and positive longitudinal controller mechanism; Its reversible control fluid reservoir and pipeline are connected on the reversible control clutch mass cylinder with rubber tube and joint; Reverse clutch pedal bolt together is on the reversible control clutch mass cylinder; The reversible control clutch mass cylinder is connected on the reversible control hand control valve (HCV) with rubber tube and joint simultaneously; The reversible control hand control valve (HCV) is connected on the T-pipe joint with rubber tube and adaptor union, realizes the both-way operation of power-transfer clutch like this, thereby realizes the two way of vehicle.
The bidirectional operation structure of described brake operation mechanism which comprises at least forward and plugging pedal, propons braking air receiver, middle back axle control of braking air receiver; T-pipe joint I, T-pipe joint II, plugging master cylinder; The forward master brake cylinder, two-way one-way valve I, two-way one-way valve II; Propons braking air receiver is connected on the T-pipe joint I through attaching parts, and two other mouthful of T-pipe joint I is connected with the port A of plugging master cylinder and the port A of forward master brake cylinder respectively; Reverse foot brake pedal is connected on the plugging master cylinder; The port B of plugging master cylinder and the port B of forward master brake cylinder are connected with two ports of two-way one-way valve I respectively; The middle port of two-way one-way valve I is connected with propons foot brake admission port, to realize the propons braking function; Middle back axle control of braking air receiver is connected on the T-pipe joint II through attaching parts; Two other mouthful of T-pipe joint II is connected with the port C of plugging master cylinder and the port C of forward master brake cylinder respectively; The forward foot brake pedal is connected on the forward master brake cylinder; The port D of plugging master cylinder and the port D of forward master brake cylinder are connected with two ports of two-way one-way valve II respectively; The middle port of two-way one-way valve II is connected with middle back axle foot brake relay valve control mouth, with back axle braking function in realizing.
The bidirectional operation structure of described manipulating mechanism of oil throttle is to be made up of the unidirectional manipulating mechanism of oil throttle of two covers.
Characteristics of the present invention are following:
1, the maneuvering system of this engineering bridge transport vehicle is because it is the various deficiencies to known manipulation technology; Clutch control, brake operation, speed change manipulation and power control are gathered on the manoeuvring platform of supporting both-way operation; Thereby realize the two way of vehicle, so it has the advantage at entire combination advantage and each position.
2, this engineering bridge transport vehicle clutch operation; Than traditional free-wheel clutch manipulation having increased reverse clutch pedal, reversible control clutch mass cylinder and fluid reservoir and pepeline fittings; And increase in the service platform relevant position two manual valves; With two clutch mass cylinder liquid outlets, separately through manual valve with, meet at a T-pipe joint; Connect clutch power-assisted cylinder control mouth through T-pipe joint, realize the clutch control of positive and negative both direction through pin stepping on clutch pedal.
3, this engineering bridge transport vehicle brake operation mechanism; Master brake cylinder and pepeline fittings that reverse brake system is handled have been increased than traditional one-way brake system manipulation; In gas circuit, increase T-pipe joint, and increase by two two-way one-way valve in service platform base plate relevant position.The pressurized air of propons braking air receiver is passed through T-pipe joint; Connect 11 mouthfuls and 11 mouthfuls of forward master brake cylinder of plugging master cylinder respectively; 21 mouthfuls of right latter two master brake cylinder are connected with two ports of two-way one-way valve respectively, and the middle port of two-way one-way valve is connected with propons foot brake admission port; The pressurized air of middle back axle control of braking air receiver is passed through T-pipe joint; Connect 12 mouthfuls and 12 mouthfuls of forward master brake cylinder of plugging master cylinder respectively; 22 mouthfuls of right latter two master brake cylinder are connected with two ports of two-way one-way valve respectively, the middle port and the middle back axle foot brake relay valve of two-way one-way valve are controlled mouth be connected.Connect through said gas circuit, the brake pedal that tramps with one's feet is realized the brake operation of positive and negative both direction.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the present invention is described further:
Fig. 1 is an embodiment combined bidirectional maneuvering system scheme drawing;
Fig. 2-the 1st, the power-transfer clutch both-way operation structure principle chart of embodiment 2;
Fig. 3-the 1st, the brake device structure schematic diagram of the two way engineering truck of embodiment 3;
Among the figure: 1, clutch operation; 2, brake operation mechanism; 3, manipulating mechanism of oil throttle; 4, bearing circle; 5, selector gear; 6, forward travel is used seat; 7, handle workplatform; 8, backward going is used seat;
2-1, reversible control fluid reservoir and pipeline; 2-2, forward are handled fluid reservoir and pipeline; 2-3, reverse clutch pedal; 2-4, forward clutch pedal; 2-5, reversible control clutch mass cylinder; 2-6, the forward master cylinder that operates the clutch; 2-7, reversible control hand control valve (HCV); 2-8, forward are handled hand control valve (HCV); 2-9, T-pipe joint;
3-1, propons braking air receiver; 3-2, middle back axle control of braking air receiver; 3-3, T-pipe joint I; 3-4, T-pipe joint II; 3-5, plugging master cylinder; 3-6, forward master brake cylinder; 3-7, two-way one-way valve I; 3-8, two-way one-way valve II.
The specific embodiment
Embodiment 1: as shown in Figure 1; This engineering bridge transport vehicle maneuvering system; It comprises clutch operation 1, brake operation mechanism 2, manipulating mechanism of oil throttle 3, bearing circle 4, selector gear 5 and seat; It is characterized in that: clutch operation 1, brake operation mechanism 2, manipulating mechanism of oil throttle 3 are bidirectional operation structures; Bearing circle 4 is fixed on to be handled on the workplatform 7; Bearing circle 4 forwards and reverse symmetry be fixed with forward travel with seat 6 and backward going with seat 8; The forward clutch pedal 2-4 of clutch operation 1 is connected the left bottom of forward travel with seat 6, and the reverse clutch pedal 2-3 of clutch operation 1 is connected the left bottom of backward going with seat 8, the stretcher of two manipulating mechanism of oil throttle 3 be connected to forward travel with bottom, the right side of seat 6 and backward going bottom the right side of seat 8; The footbrake plate of two brake operation mechanisms 2 connects respectively between the stretcher of two pedal of clutchs and manipulating mechanism of oil throttle 3, and the joystick of selector gear 5 is arranged in positive operation platform right side.
Clutch operation 1, brake operation mechanism 2, manipulating mechanism of oil throttle 3, bearing circle 4, selector gear 5, forward travel are integrated in seat 8 with seat 6 and backward going and handle on the workplatform 7; Connection components and parts through each system are installed on the operation element platform 7; The joystick of its selector gear 5 is arranged in the service platform right side, the going of support unit both direction.When the vehicle forward travel, chaufeur is sitting in forward travel with on the seat 6, can carry out clutch control, brake operation and power control, thereby realizes the forward travel of vehicle, and this moment, it used as front truck, hauls bridge and goes in the bridge hauling operation; When vehicle needed backward going, chaufeur was sitting in backward going with on the seat 8, can carry out the manipulation of three systems equally, made the vehicle backward going, this moment vehicle as the back car in the operation of fortune beam, pushing away bridge and going.Chaufeur can be observed front truck and bridge traffic condition like this, cooperates front truck to go.Verify that through actual the use this both-way operation system features in convenient can satisfy the bridge hauling operation fully, has improved the bridge conveying efficiency.
Embodiment 2 and embodiment 1 are basic identical; The manipulation of different is its power-transfer clutch is shown in Fig. 2-1; The bidirectional operation structure of described clutch operation 1; Adopt the identical symmetrical bonded assembly both-way operation of structure mechanism, which comprises at least reverse clutch pedal 2-3, forward clutch pedal 2-4, reversible control fluid reservoir and pipeline 2-1, forward and handle operate the clutch master cylinder 2-6, reversible control hand control valve (HCV) 2-7, forward of fluid reservoir and pipeline 2-2, reversible control clutch mass cylinder 2-5, forward and handle hand control valve (HCV) 2-8, T-pipe joint 2-9; Forward is handled fluid reservoir and pipeline 2-2 and is connected forward with rubber tube and joint and operates the clutch on the master cylinder 2-6; Forward clutch pedal 2-4 bolt together is on forward operates the clutch master cylinder 2-6; Simultaneously the forward master cylinder 2-6 that operates the clutch is connected forward with rubber tube and joint and handles on the hand control valve (HCV) 2-8; Forward is handled hand control valve (HCV) 2-8 and is connected on the T-pipe joint 2-9 with rubber tube and adaptor union, is connected with clutch power-assisted cylinder interface with pipe through T-pipe joint 2-9; The symmetrical bonded assembly reversible control of same and positive longitudinal controller mechanism; Its reversible control fluid reservoir and pipeline 2-1 are connected on the reversible control clutch mass cylinder 2-5 with rubber tube and joint; Reverse clutch pedal 2-3 bolt together is on reversible control clutch mass cylinder 2-5; Reversible control clutch mass cylinder 2-5 is connected on the reversible control hand control valve (HCV) 2-7 with rubber tube and joint simultaneously; Reversible control hand control valve (HCV) 2-7 is connected on the T-pipe joint 2-9 with rubber tube and adaptor union, realizes the both-way operation of power-transfer clutch like this, thereby realizes the two way of vehicle.
Forward is handled fluid reservoir and pipeline 2-2 and is connected forward with rubber tube and joint and operates the clutch on the master cylinder 2-6; Forward clutch pedal 2-4 bolt together is on forward operates the clutch master cylinder 2-6; Simultaneously the forward master cylinder 2-6 that operates the clutch is connected forward with rubber tube and joint and handles hand control valve (HCV) 2-8; Forward is handled hand control valve (HCV) 2-8 and is connected on the T-pipe joint 2-9 with rubber tube and adaptor union, is connected with clutch power-assisted cylinder interface with pipe through T-pipe joint 2-9.The connection mode of reversible control is similar to forward and handles connection.When the vehicle forward travel, when needing the power-transfer clutch forward to handle, open forward and handle manual valve 2-8; And closing reverse operating hand control valve (HCV) 27, the forward clutch that tramps with one's feet down then pedal 2-4 is through forward clutch master cylinder 2-6; The control clutch servo cylinder realizes the manipulation of power-transfer clutch forward.Thereby realize the vehicle forward travel; When the vehicle backward going, when needing the power-transfer clutch reversible control, open reversible control hand control valve (HCV) 2-7; And close positive operation hand control valve (HCV) 2-8; The reverse clutch pedal 2-3 that tramps with one's feet down then is through reversible control fluid reservoir and pipeline 2-1 and reverse clutch master cylinder 2-5, control clutch servo cylinder; Realize the power-transfer clutch reversible control, thereby realize the vehicle backward going.
Embodiment 3 and embodiment 1 are basic identical, its brake system that different is shown in Fig. 3-1, the bidirectional operation structure of described brake operation mechanism 2; Which comprises at least forward and plugging pedal, propons braking air receiver 3-1, middle back axle control of braking air receiver 3-2, T-pipe joint I 3-3; T-pipe joint II3-4, plugging master cylinder 3-5, forward master brake cylinder 3-6; Two-way one-way valve I 3-7, two-way one-way valve II3-8; Propons braking air receiver 3-1 is connected on the T-pipe joint I 3-3 through attaching parts, and two other mouthful of T-pipe joint I 3-3 is connected with the port A of plugging master cylinder 3-5 and the port A of forward master brake cylinder 3-6 respectively; Reverse foot brake pedal is connected on the plugging master cylinder 3-5; The port B of the port B of plugging master cylinder 3-5 and forward master brake cylinder 3-6 is connected with two ports of two-way one-way valve I 3-7 respectively; The middle port of two-way one-way valve I 3-7 is connected with propons foot brake admission port, to realize the propons braking function; Middle back axle control of braking air receiver 3-2 is connected on the T-pipe joint II 3-4 through attaching parts; Two other mouthful of T-pipe joint II 3-4 is connected with the port C of plugging master cylinder 3-5 and the port C of forward master brake cylinder 3-6 respectively; The forward foot brake pedal is connected on the forward master brake cylinder 3-6; The port D of the port D of plugging master cylinder 3-5 and forward master brake cylinder 3-6 is connected with two ports of two-way one-way valve II 3-8 respectively; The middle port of two-way one-way valve II3-8 is connected with middle back axle foot brake relay valve control mouth, with back axle braking function in realizing.
Propons braking air receiver 3-1 with ∮ 12 inferior bassoons and joint, cone ring, serve as a contrast core and be connected on the T-pipe joint I 3-3, two other mouthful with T-pipe joint I 3-3 is connected with the A mouth of plugging master cylinder 3-5 and the A mouth of forward master brake cylinder 3-6 respectively then.Reverse foot brake pedal bolt together is on plugging master cylinder 3-5.At last the B mouth of plugging master cylinder 35 and the B mouth of forward master brake cylinder 3-6 are connected with two ports of two-way one-way valve I 3-7 respectively, the middle port of two-way one-way valve 3-7I is connected with propons foot brake admission port, realize the propons braking function; In back axle control of braking air receiver 3-2 with ∮ 12 inferior bassoons and joint, cone ring, serve as a contrast core and be connected on the T-pipe joint II 3-4, two other mouthful with T-pipe joint II 3-4 is connected with the C mouth of plugging master cylinder 3-5 and the C mouth of forward master brake cylinder 3-6 respectively then.Forward foot brake pedal bolt together is on forward master brake cylinder 3-6.At last the D mouth of plugging master cylinder 35 and the D mouth of forward master brake cylinder 3-6 are connected with two ports of two-way one-way valve II 3-8 respectively; The middle port of two-way one-way valve II 3-8 is connected back axle braking function in the realization with middle back axle foot brake relay valve control mouth.When the vehicle positive operation; Need the brake system forward to handle; The forward brake pedal directly tramps with one's feet down; Pressurized air among propons braking air receiver 3-1 and the middle back axle control of braking air receiver 3-2 is through forward master brake cylinder 3-6, and spool to the forward that promotes two-way one-way valve I 3-7 and two-way one-way valve II 3-8 realizes that through the position forward of brake system is handled.When the vehicle reverse operating; Need the brake system reversible control; The plugging pedal directly tramps with one's feet down; Pressurized air among propons braking air receiver 3-1 and the middle back axle control of braking air receiver 3-2 is through plugging master cylinder 3-5, and the spool that promotes two-way one-way valve I 3-7 and two-way one-way valve II 3-8 is realized the reversible control of brake system to the reverse position of passing through.
So the mechanism in mechanism that does not have in the embodiment of the invention to describe in detail or parts and the known technology or block construction is identical is not described in detail is identical with selector gear and manipulating mechanism of oil throttle structure in the known technology like the structure of selector gear 5 and unidirectional manipulating mechanism of oil throttle.
Claims (3)
1. the maneuvering system of an engineering bridge transport vehicle; It comprises clutch operation (1), brake operation mechanism (2), manipulating mechanism of oil throttle (3), bearing circle (4), selector gear (5) and seat; It is characterized in that: clutch operation (1), brake operation mechanism (2), manipulating mechanism of oil throttle (3) are the bidirectional operation structures; Bearing circle (4) is fixed on to be handled on the workplatform (7); Bearing circle (4) forward and reverse symmetry be fixed with forward travel with seat (6) and backward going with seat (8); The forward clutch pedal (2-4) of clutch operation (1) is connected the left bottom of forward travel with seat (6); The reverse clutch pedal (2-3) of clutch operation (1) is connected the left bottom of backward going with seat (8); The stretcher of two manipulating mechanism of oil throttle (3) be connected to forward travel with bottom, the right side of seat (6) and backward going bottom the right side of seat (8); The footbrake plate of two brake operation mechanisms (2) connects respectively between the stretcher of two pedal of clutchs and manipulating mechanism of oil throttle (3), and the joystick of selector gear (5) is arranged in positive operation platform right side; The bidirectional operation structure of described clutch operation (1); Adopt the identical symmetrical bonded assembly both-way operation of structure mechanism, which comprises at least reverse clutch pedal (2-3), forward clutch pedal (2-4), reversible control fluid reservoir and pipeline (2-1), forward and handle operate the clutch master cylinder (2-6), reversible control hand control valve (HCV) (2-7), forward of fluid reservoir and pipeline (2-2), reversible control clutch mass cylinder (2-5), forward and handle hand control valve (HCV) (2-8), T-pipe joint (2-9); Forward is handled fluid reservoir and pipeline (2-2) and is connected forward with rubber tube and joint and operates the clutch on the master cylinder (2-6); Forward clutch pedal (2-4) bolt together is on forward operates the clutch master cylinder (2-6); Simultaneously the forward master cylinder (2-6) that operates the clutch is connected forward with rubber tube and joint and handles on the hand control valve (HCV) (2-8); Forward is handled hand control valve (HCV) (2-8) and is connected on the T-pipe joint (2-9) with rubber tube and adaptor union, is connected with clutch power-assisted cylinder interface with pipe through T-pipe joint (2-9); The symmetrical bonded assembly reversible control of same and positive longitudinal controller mechanism; Its reversible control fluid reservoir and pipeline (2-1) are connected on the reversible control clutch mass cylinder (2-5) with rubber tube and joint; Reverse clutch pedal (2-3) bolt together is on reversible control clutch mass cylinder (2-5); Reversible control clutch mass cylinder (2-5) is connected on the reversible control hand control valve (HCV) (2-7) with rubber tube and joint simultaneously; Reversible control hand control valve (HCV) (2-7) is connected on the T-pipe joint (2-9) with rubber tube and adaptor union, realizes the both-way operation of power-transfer clutch like this, thereby realizes the two way of vehicle.
2. the maneuvering system of a kind of engineering bridge transport vehicle according to claim 1 is characterized in that: the bidirectional operation structure of described brake operation mechanism (2) which comprises at least forward and plugging pedal, propons braking air receiver (3-1); Middle back axle control of braking air receiver (3-2), T-pipe joint I (3-3), T-pipe joint II (3-4); Plugging master cylinder (3-5); Forward master brake cylinder (3-6), two-way one-way valve I (3-7), two-way one-way valve II (3-8); Propons braking air receiver (3-1) is connected on the T-pipe joint I (3-3) through attaching parts, and two other mouth of T-pipe joint I (3-3) is connected with the port A of plugging master cylinder (3-5) and the port A of forward master brake cylinder (3-6) respectively; Reverse foot brake pedal is connected on the plugging master cylinder (3-5); The port B of the port B of plugging master cylinder (3-5) and forward master brake cylinder (3-6) is connected with two ports of two-way one-way valve I (3-7) respectively; The middle port of two-way one-way valve I (3-7) is connected with propons foot brake admission port, to realize the propons braking function; Middle back axle control of braking air receiver (3-2) is connected on the T-pipe joint II (3-4) through attaching parts; Two other mouth of T-pipe joint II (3-4) is connected with the port C of plugging master cylinder (3-5) and the port C of forward master brake cylinder (3-6) respectively; The forward foot brake pedal is connected on the forward master brake cylinder (3-6); The port D of the port D of plugging master cylinder (3-5) and forward master brake cylinder (3-6) is connected with two ports of two-way one-way valve II (3-8) respectively; The middle port of two-way one-way valve II (3-8) is connected with middle back axle foot brake relay valve control mouth, with back axle braking function in realizing.
3. the maneuvering system of a kind of engineering bridge transport vehicle according to claim 1 is characterized in that: the bidirectional operation structure of described manipulating mechanism of oil throttle (3) is to be made up of the unidirectional manipulating mechanism of oil throttle of two covers.
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| CN 201010113719 CN101811466B (en) | 2010-02-12 | 2010-02-12 | Control system of engineering bridge transport vehicle |
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| CN 201010113719 CN101811466B (en) | 2010-02-12 | 2010-02-12 | Control system of engineering bridge transport vehicle |
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| CN101811466B true CN101811466B (en) | 2012-12-26 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104802878B (en) * | 2015-05-15 | 2019-08-16 | 张素宝 | Railway T-shaped beam special transportation device |
| CN107672450B (en) * | 2017-09-26 | 2019-12-17 | 纳恩博（北京）科技有限公司 | Universal kart |
| CN110001389A (en) * | 2018-01-05 | 2019-07-12 | 芜湖佳景科技有限公司 | Two way special vehicle and its clutch system |
| CN115257508B (en) * | 2022-08-29 | 2023-08-25 | 中铁五局集团第一工程有限责任公司 | Driving transport vehicle for operation tunnel |
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| CN201646393U (en) * | 2010-02-12 | 2010-11-24 | 陕西同力重工股份有限公司 | Manipulation device of construction bridge transporter |
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| US1681319A (en) * | 1922-04-06 | 1928-08-21 | William L O Connell | Motor vehicle |
| US3693744A (en) * | 1969-03-13 | 1972-09-26 | Karl Peschke Kapilalverwallung | Multi-purpose vehicle |
| CN2095800U (en) * | 1991-04-16 | 1992-02-12 | 建设部长沙建筑机械研究所 | Two-direction driving two-function engineering vehicle |
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