CN209566752U - Combined tractor - Google Patents

Abstract

The utility model discloses a kind of combined tractors, are related to tractor technical field, its vehicle frame includes the front frame and Rear frame being connected by articulated steering device；Transfer includes forecarriage, trailing bogie, turns to pin shaft and steering cylinder, front frame rear portion is fixed with the forecarriage protruded backward, Rear frame front is fixed with forwardly convex trailing bogie, forecarriage end and trailing bogie front end are hinged by turning to pin shaft, and king pin axle position is in under-cab；Steering cylinder there are two being symmetrical arranged between upper and lower two forecarriages, the front end of two steering cylinders is articulated in the support plate of forecarriage middle and back by preceding swivel pin, the rear end of two steering cylinders passes through rear swivel pin respectively and is articulated on two symmetrically arranged trunnions, and two trunnions are fixed on the inner wall of Rear frame；Front driving axle and rear driving axle are equal strength vehicle bridge.The utility model solves the problems, such as the combined tractor high failure rate of existing rubber tire and easily derailing.

Description

Combined tractor

Technical field

The utility model relates to tractor technical field, especially a kind of combined tractor.

Background technique

Combined tractor is a kind of to be widely used in special purpose railroad and rolling stock builds the special of enterprise Vehicle is mainly used for rail vehicle traction, shunting service, can also be in new line construction and later period maintenance as rail engineering machinery It uses.

It is driving and driving two kinds of rubber tire that combined tractor by driving method is divided into steel wheel.The driving rail-road of steel wheel When double duty tractor orbits, steel wheel is both directive wheel and driving wheel, is travelled on highway using rubber tire, its spy Point is that traction tones are big, and track safety in operation is high.No matter the driving combined tractor of rubber tire is on highway or in iron Road traveling is all driven by rubber tire, is oriented to when driving with dedicated rail-guided wheel on railway, guarantees that vehicle is walked along railway, Suitable for medium and small tonnage, the shunting service of small lot.For road rail vehicle compared with conventional rails engineering machinery, sharpest edges are machines Dynamic flexibly the tractor speed of service is low, and tractive force is big, and overall life cycle cost is far below conventional rails vehicle, is suitable for existing The energy-saving and environment-friendly requirement of foundry industry is a kind of economical traction power.

The existing driving combined tractor of a kind of rubber tire, using forklift truck chassis rack structure scheme, steering mode For front-wheel steer, chassis is low, and transmission system is excessively compact, and when rail-road car takes 4 wheel driven mode, preceding bridge uses steering and driving axle, preceding Rear axle is non-equal strength vehicle bridge, and preceding bridge easily damages, high failure rate；The maintenance and replacement of components are difficult, later period maintenance cost It is high.Driving wheel is oblique cord automobile tire, and there are tires the quick abrasion on rail the shortcomings that.In order to extend rubber tyre Service life, rubber tyre driving wheel burden in orbit after mitigation, it is necessary to which rubber tyre driving wheel is led with after after suitably distributing Load-carrying to wheel just can ensure that the driveability of rear rubber tyre driving wheel and the rail tracking performance of rear directive wheel.And it walks Rail-guided wheel mechanism, portion belongs to fixed shaft gear train, and wheel base is constant, walks in curve conduit, especially turnout passing when easily go out Existing derailment occurring.

Utility model content

The purpose of the utility model is to provide a kind of combined tractor, this tractor can solve existing rubber tire and drive The problem of combined 4 wheel driven tractor high failure rate of ejector half and easily derailing.

To solve the above-mentioned problems, the technical solution adopted in the utility model is: this combined tractor includes vehicle Frame and the driver's cabin being mounted on the vehicle frame, front driving axle, rear driving axle and guiding device of track, the vehicle frame connection There is a train coupler, the both ends of the front driving axle and the rear driving axle are separately installed with tire, and the vehicle frame includes front frame And Rear frame, the driver's cabin are installed in the Rear frame, the front frame is connected with Rear frame by articulated steering device It connects；The transfer includes that forecarriage, trailing bogie, steering pin shaft and steering cylinder, the front frame rear portion are fixed with Upper and lower two forecarriages protruded backward, the Rear frame front is fixed, and there are two forwardly convex trailing bogies, before described The outer profile width of bogie is gradually reduced backward along the front frame axis, and the outer profile width of the trailing bogie is described in Rear frame axis is gradually reduced forward, and the forecarriage end and the trailing bogie front end are by erectting described turn be arranged It is hinged to pin shaft, the king pin axle position is in the under-cab；It is symmetrically set between upper and lower two forecarriages The steering cylinder there are two setting, after the front end of two steering cylinders is articulated in the forecarriage by preceding swivel pin In the support plate in portion, the rear end of two steering cylinders passes through rear swivel pin respectively and is articulated with two symmetrically arranged trunnions On, two trunnions are fixed on the inner wall of the Rear frame；The front driving axle and the rear driving axle are equal strength vehicle bridge.

In the technical solution of above-mentioned combined tractor, more specific technical solution may also is that the front driving axle It is reinforced semiaxis floating drive axle with the rear driving axle.

Further, two steering cylinders slope inwardly setting forward, the steering pin shaft axis and it is described after hinge The axis of outbound is in same risers, axis of the risers perpendicular to the Rear frame.

Further, oscillating bearing is provided between the steering pin shaft and the trailing bogie.

Further, the tire is the wide base engineering tyre of low section.

Further, after the guiding device of track includes preceding guiding device of track and is installed on the Rear frame rear end Guiding device of track, the preceding guiding device of track are fixed on swing arm front end, and the swing arm is hinged with the front frame, described Front frame and the swing arm are connected with swing arm oil cylinder.

Further, the preceding guiding device of track include front jockey wheel to, frong guide column, preceding guide type shoe, the first compression Spring, gag lever post are symmetrically installed with two front guide posts for erectting setting on the wheel shaft of the front jockey wheel pair, before described Guide post be inserted upwardly into the preceding guide type shoe and with it is described it is leading to bearing sliding cooperate；Along axial direction in the front guide post The first opening up blind hole is offered, the limit vertical bar connecting with the preceding guide type shoe is fixed in first blind hole, The first compressed spring is set on the limit vertical bar, one end of first compressed spring and the first blind hole inner bottom surface connect It connects, the other end is connect with the preceding guide type shoe.

Further, after described guiding device of track include rear directive wheel to, rear pillar, rear guide type shoe, the second compression Spring is lifted oil cylinder, and two rear guide posts for erectting setting are symmetrically installed on the wheel shaft of the rear directive wheel pair, described Guide post is inserted upwardly into the rear guide type shoe and is slidably matched with the rear guide type shoe afterwards；Along axis in guide post after described To the second opening up blind hole is offered, the upper end of the guide type shoe, which is erect, is provided with the lifting oil cylinder, the lifting The piston rod of oil cylinder protrudes into second blind hole, and the rear guide post has the limiting stand to offset with the piston rod end Shoulder；Be placed with the second compressed spring in second blind hole, the both ends of second compressed spring respectively with the piston rod and The inner bottom surface of second blind hole is connected.

Further, swing arm limited block is provided in the front frame.

By adopting the above-described technical solution, the utility model has the following beneficial effects: compared with prior art

1, vehicle frame uses front frame articulation steering form, and front frame is used articulated mounting with Rear frame and connects, hydraulic booster It turns to, steering cylinder is distributed in swivel pin or so, to push front frame to rotate around swivel pin, realizes articulated steering；Articulation steering Vehicle frame can use equicohesive front and back drive axle, and bridge is not easy by sundries clashing and breaking, to reduce failure rate；It, can be with when crossing turnout A possibility that changing front and back wheel base according to turnout camber, reducing derailing.

2, front and back drive axle is reinforced semiaxis floating drive axle, can bear that torque is big, and intensity is good, is hardly damaged.

3, the setting of the position of steering cylinder and connection relationship can be completed to turn to less power.

4, oscillating bearing is set, the smoothness turned to can be improved, and improve the service life of component.

5, tire is the wide base engineering tyre of the low section of type, grabs that ground area is big, and tractive force is up to 60KN.

6, front and back guiding device of track uses spring follow structure, can guarantee that directive wheel is contacted with orbitally stable, guide car Along railway walk；Guiding device is driven by oil cylinder and realizes lifting, is fallen when walking on railway, the liter when walking on road surface It rises.

7, accessory is durable, and maintainability is good, and market supply is abundant, moderate, can reduce manufacturing cost；Driving power By force, oil consumption is low, and driver behavior is easy, flexible, is suitble to run under the various weathers of on-site, environment, energy conservation and environmental protection.

8, vehicle maneuverability is good, and upper and lower railway is light, is easy to road, and failure is few, and cost of use is lower, achieves well Benefit.

9, the type combined tractor is railway builds enterprise, rolling stock section, subway overhaul enterprise have promotion price Value.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of this combined tractor embodiment.

Fig. 2 is the top view of Fig. 1.

Fig. 3 is the left view of Fig. 1.

Fig. 4 is the mounting structure schematic diagram of articulated steering device.

Fig. 5 is the top view of Fig. 4.

Fig. 6 is the mounting structure schematic diagram of preceding guiding device of track.

Fig. 7 is the left view of Fig. 6.

Fig. 8 is the structural schematic diagram of rear guiding device of track.

Number explanation in attached drawing: 1, preceding guiding device of track；1-1, front jockey wheel pair；1-2, front guide post；It is 1-3, preceding Guide type shoe；1-4, the first compressed spring；1-5, limit vertical bar；1-6, shield；2, tire；3, front driving axle；4, front frame； 4-1, front end-plate；5, articulated steering device；5-1, preceding swivel pin；5-2, steering cylinder；5-3, forecarriage；5-4, rear steering Frame；5-5, rear swivel pin；5-6, pin shaft is turned to；5-7, oscillating bearing；6, gearbox；7, torque-converters；8, rear driving axle；9, rear car Frame；9-1, end plate；10, engine；11, rear guiding device of track；11-1, rear directive wheel pair；11-2, rear guide type shoe；11- 3, it is lifted oil cylinder；11-4, rear guide post；11-5, the second compressed spring；12, train coupler；13, driver's cabin；14, swing arm；15, Swing arm oil cylinder；16, swing arm limited block.

Specific embodiment

The utility model is described in further detail for embodiment with reference to the accompanying drawing:

Fig. 1 to combined tractor shown in Fig. 3 include vehicle frame, driver's cabin 13, engine 10, gearbox 6, torque-converters 7, front driving axle 3, rear driving axle 8, preceding guiding device of track 1, rear guiding device of track 11, train coupler 12, tire 2 etc., it is preceding The both ends of drive axle 3 and rear driving axle 8 are separately installed with tire 2, and the tire 2 of the present embodiment is that the low section of 16/70-20 type is wide Base engineering tyre, front driving axle 3 and rear driving axle 8 are equicohesive reinforced semiaxis floating drive axle, and dynamical system is by one Platform diesel engine 10 provides power, drives vehicle by gearbox 6, torque-converters 7, transmission shaft, front driving axle 3 and rear driving axle 8 Walking.Vehicle frame includes front frame 4 and Rear frame 9, and front frame 4 is connected with Rear frame 9 by articulated steering device 5, front truck 4 lower part of frame fills front driving axle 3, and Rear frame 9 fills rear driving axle 8 below；Driver's cabin 13 is provided with steerable system, and driver's cabin 13 is installed On 9 front of Rear frame, position is higher, unobscured, facilitates observation, and operation is comfortable；After engine 10 is mounted in Rear frame 9 Portion, the flange of fluid torque-converter 7 couple with engine 10, are placed in 9 middle part of Rear frame, and gearbox 6 is mounted on 9 front end of Rear frame, 10 power of engine is transmitted to fluid torque-converter 7 by gear coupling, is passed after 7 bending moment of fluid torque-converter by Hooke's joint Moving axis is transmitted to gearbox 6, and 6 rear and front end output shaft of gearbox is transmitted to power by Hooke's joint transmission shaft biography forward and backward Drive axle 8 drives vehicle wheel rotation, realizes vehicle to run.

As shown in Figure 4 and Figure 5, the transfer for connecting front frame 4 and Rear frame 9 mainly includes forecarriage 5-3, rear turn To frame 5-4, pin shaft 5-6, oscillating bearing 5-7, steering cylinder 5-2, preceding swivel pin 5-1 and rear swivel pin 5-5 are turned to, in front frame 4 rear portions are fixed with the forecarriage 5-3 protruded backward in two arranged up and down, and forecarriage 5-3 is outer profile width before 4 axis of vehicle frame diminishing wishbone backward is fixed at position of the front of Rear frame 9 corresponding to two forecarriage 5-3 There are two forwardly convex trailing bogie 5-4, trailing bogie 5-4 is that outer profile width is gradually reduced forward along 9 axis of Rear frame Wishbone, the angle of forecarriage 5-3 is less than the angle of trailing bogie 5-4, before the end forecarriage 5-3 and trailing bogie 5-4 End is hinged by erectting the steering pin shaft 5-6 of setting, is turned to pin shaft 5-6 and is located at 13 lower section of driver's cabin, turns to pin shaft 5-6 with after Oscillating bearing 5-7 is provided between bogie 5-4；Steering oil there are two being symmetrical arranged between upper and lower two forecarriage 5-3 The front end of cylinder 5-2, two steering cylinder 5-2 are articulated in the support plate of the middle and back forecarriage 5-3 by preceding swivel pin 5-1, The rear end of two steering cylinder 5-2 is articulated with two trunnions for being fixed on the inner wall of Rear frame 9 by rear swivel pin 5-5 respectively On, two trunnions are inwardly symmetrical arranged forward.The axis of pin shaft 5-6 axis and rear swivel pin 5-5 are turned in same risers, The risers are perpendicular to the axis of Rear frame 9, and two steering cylinder 5-2 are by rear inward slant setting facing forward.

After the guiding device of track of combined tractor as shown in Figure 1 includes preceding guiding device of track 1 and is installed on The rear guiding device of track 11 of 9 rear end of vehicle frame, the front end-plate 4-1 of front frame 4 and the end plate 9-1 of Rear frame 9 are mounted on use In the train coupler 12 of connection train, efficiently it can connect or disengage with rolling stock.As shown in Figure 6 and Figure 7, preceding track is led It is installed on 14 front end of swing arm to device 1, the other end and the front frame 4 of swing arm 14 are hinged, and front frame 4 and swing arm 14 are connected with pendulum Arm oil cylinder 15 is provided with swing arm limited block 16 in front frame 4, and swing arm 14 is in the space that swing arm limited block 16 and front frame 4 enclose Inside swing up and down；Preceding guiding device of track 1 includes front jockey wheel to 1-1, frong guide column, preceding guide type shoe 1-3, the first compressed spring 1-4, gag lever post, for front jockey wheel to two front guide post 1-2 for erectting setting are symmetrically installed on the wheel shaft of 1-1, two leading Before being inserted upwardly into column 1-2 in guide type shoe 1-3, and it is slidably matched with preceding guide type shoe 1-3, preceding guide type shoe 1-3 bolt It is fixed in swing arm 14；Front jockey wheel is connected to 1-1 with frong guide column, can relatively preceding guide type shoe 1-3 sliding；Front guide post It is provided in the axial direction with the first opening up blind hole in 1-2, the limit connecting with preceding guide type shoe 1-3 is fixed in the first blind hole The first blind hole bottom surface is fixed in vertical bar 1-5, the bottom end of limit vertical bar 1-5, and the upper end passes through the limit of the upper end preceding guide type shoe 1-3 Step is threadedly coupled locking with locking nut, is equipped at the position that the upper end of preceding guide type shoe 1-3 corresponds to guide post anti- Shield 1-6；It is set in one end and the first blind hole of the first compressed spring 1-4, the first compressed spring 1-4 on limit vertical bar 1-5 Bottom surface connection, the other end are connect with the limited step lower end surface of preceding guide type shoe 1-3.

As shown in figure 8, rear guiding device of track 11 includes rear directive wheel to 11-1, rear pillar, rear guide type shoe 11-2, the Two compressed spring 11-5, lifting oil cylinder 11-3, rear directive wheel is to two setting settings are symmetrically installed on the wheel shaft of 11-1 after Guide post 11-4, rear guide post 11-4 is inserted upwardly into rear guide type shoe 11-2, and is slidably matched with rear guide type shoe 11-2, after Guide holder is fixed by bolts on the end plate 9-1 of 9 tail portion of Rear frame；Opening court is provided in the axial direction in guide post 11-4 afterwards On the second blind hole, the upper end of guide type shoe, which is erect, is provided with lifting oil cylinder 11-3, the piston rod of lifting oil cylinder 11-3 erect to Under protrude into the second blind hole, rear guide post 11-4 has the limit shoulder that offsets with piston rod end；It is placed in second blind hole Second compressed spring 11-5, the both ends of the second compressed spring 11-5 are connected with the inner bottom surface of piston rod and the second blind hole respectively.

This combined tractor starts swing arm oil cylinder 15, swing arm 14 is lifted in operation on road surface, preceding rail-guided Device 1 is raised up to therewith keeps a distance with road surface, meanwhile, starting lifting oil cylinder 11-3, guiding device of track 11 after driving It is raised up to and keeps a distance with road surface, conventional road surface walking towage can be carried out on road surface.When operation in orbit, Keep wheel in orbit, be driven in the reverse direction swing arm oil cylinder 15, swing arm 14 is put down, drop to front jockey wheel on track to 1-1, In Under the collective effect of front guide post 1-2 and the first compressed spring 1-4, it is pressed against front jockey wheel always to 1-1 in orbit；Together When, it is driven in the reverse direction lifting oil cylinder 11-3, drop to rear directive wheel on track to 11-1, is compressed in rear guide post 11-4 and second Under the collective effect of spring 11-5, it is pressed against rear directive wheel always to 11-1 in orbit, traction work can be carried out in orbit Industry.When needing to turn to, two steering cylinder 5-2 are acted on simultaneously, when the elongation of side steering cylinder piston rod, other side steering oil Cylinder piston rod withdraws shortening simultaneously, and front frame 4 can be turned to by forecarriage 5-3 around pin shaft 5-6 is turned to.

Claims (9)

1. a kind of combined tractor, including vehicle frame and the driver's cabin being mounted on the vehicle frame, front driving axle, rear driving Bridge and guiding device of track, the vehicle frame are connected with train coupler, the both ends point of the front driving axle and the rear driving axle Tire is not installed, it is characterised in that: the vehicle frame includes front frame and Rear frame, and the driver's cabin is installed on the Rear frame On, the front frame is connected with Rear frame by articulated steering device；The transfer includes forecarriage, rear steering Frame, steering pin shaft and steering cylinder, the front frame rear portion are fixed with upper and lower two forecarriages protruded backward, the rear car Frame front is fixed there are two forwardly convex trailing bogie, the outer profile width of the forecarriage along the front frame axis to After be gradually reduced, the outer profile width of the trailing bogie is gradually reduced forward along the Rear frame axis, the forecarriage End and the trailing bogie front end are hinged by erectting the steering pin shaft of setting, and the king pin axle position is driven in described It sails below room；The steering cylinder there are two being symmetrical arranged between upper and lower two forecarriages, two steering oils The front end of cylinder is articulated in the support plate of the forecarriage middle and back by preceding swivel pin, the rear end of two steering cylinders It is articulated on two symmetrically arranged trunnions by rear swivel pin respectively, two trunnions are fixed on the interior of the Rear frame Wall；The front driving axle and the rear driving axle are equal strength vehicle bridge.

2. combined tractor according to claim 1, it is characterised in that: the front driving axle and the rear driving axle It is reinforced semiaxis floating drive axle.

3. combined tractor according to claim 2, it is characterised in that: two steering cylinders are lean-in forward The axis of tiltedly setting, the steering pin shaft axis and the rear swivel pin is in same risers, and the risers are perpendicular to institute State the axis of Rear frame.

4. combined tractor according to claim 3, it is characterised in that: the steering pin shaft and the trailing bogie Between be provided with oscillating bearing.

5. combined tractor according to claim 4, it is characterised in that: the tire is the wide base engineering wheel of low section Tire.

6. according to claim 1 to combined tractor described in 5 any claim items, it is characterised in that: the track Guiding device includes preceding guiding device of track and the rear guiding device of track for being installed on the Rear frame rear end, and the preceding track is led It is fixed on swing arm front end to device, the swing arm is hinged with the front frame, and the front frame and the swing arm are connected with pendulum Arm oil cylinder.

7. combined tractor according to claim 6, it is characterised in that: the preceding guiding device of track includes leading To wheel to, frong guide column, preceding guide type shoe, the first compressed spring, gag lever post, be symmetrically installed on the wheel shaft of the front jockey wheel pair Two erect setting front guide post, the front guide post be inserted upwardly into the preceding guide type shoe and with the preceding guide type shoe It is slidably matched；The first opening up blind hole is provided in the axial direction in the front guide post, be fixed in first blind hole with The limit vertical bar of the preceding guide type shoe connection is set with the first compressed spring on the limit vertical bar, and described first compresses bullet One end of spring is connect with the first blind hole inner bottom surface, and the other end is connect with the preceding guide type shoe.

8. combined tractor according to claim 7, it is characterised in that: guiding device of track is led after including after described To wheel to, rear pillar, rear guide type shoe, the second compressed spring, lifting oil cylinder, it is described after directive wheel pair wheel shaft on be symmetrically installed Have two rear guide posts for erectting setting, it is described after guide post be inserted upwardly into it is described after in guide type shoe and with it is described after guiding branch Seat is slidably matched；The second opening up blind hole is provided in the axial direction with after described in guide post, the upper end of the guide type shoe is perpendicular It erects and is equipped with the lifting oil cylinder, the piston rod of the lifting oil cylinder protrudes into second blind hole, and the rear guide post has The limit shoulder to offset with the piston rod end；The second compressed spring, second compression are placed in second blind hole The both ends of spring are connected with the inner bottom surface of the piston rod and second blind hole respectively.

9. combined tractor according to claim 8, it is characterised in that: be provided with swing arm limited block in the front frame.