CN202156450U

CN202156450U - Front and back drive steering wheel tractor with front wheel steering function

Info

Publication number: CN202156450U
Application number: CN201120234339XU
Authority: CN
Inventors: 林鹏; 李承昌; 唐嘉懋
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-05
Filing date: 2011-07-05
Publication date: 2012-03-07
Anticipated expiration: 2021-07-05

Abstract

The utility mode discloses a front and back drive steering wheel tractor with front wheel steering function. A front wheel drive part of a gearbox is provided with a steering mechanism, a plate spring mounting position is added and meanwhile a brake is added, so that the aim of front wheel steering, increment of braking force and reduction of labor intensity of driver is realized; and the problem that the steering gear box is heavy and the steering wheel has a wobbing in the steering process is solved. In this way, the tractor is more consistent with humanity design requirements and is closer to operation design and operation requirements of an automobile. The tractor can not only use a gearbox without a back drive device for improvement to realize front drive of front wheel steering, but also use a gearbox with the back drive device for improvement to realize front and back drive; and the tractor can be changed into three drive type steering wheel tractors such as a front drive steering wheel tractor with function of front wheel steering, a back drive steering wheel tractor with function of front wheel steering, a front and back drive steering wheel tractor with function of front wheel steering and the like according to the difference that the tractor gearbox has the back drive device or not.

Description

Full driving direction dish trac. before and after a kind of front-wheel steering

Technical field

The utility model belongs to a kind of farm transportation machinery, especially a kind of front and back full driving direction dish trac. with front-wheel steering function.

Background technology

At present; The existing agricultural front and back of known various models full driving direction dish trac.; How with reference to the fifties design-calculated workers and peasants-12 type tractor chassis improve; Workers and peasants after the improvement-12 type tractor chassis still exists following several respects not enough: one, tractor steering is articulated steering does not still have the type that uses front-wheel to turn to, and this articulated steering mode is under the relatively poor situation of condition of road surface, because overweight the causing of head turns to difficulty; The steering box overload, faults such as the easy fracture of steering box bearing happen occasionally; Two, because front-wheel does not have self-aligning parameters such as stub leaning angle, kingpin caster angle, camber angle and toeing-in, trac. bearing circle in operational process swings indefinite and is unfavorable for driving; Therefore three, because articulated steering can produce swinging of armrest seat, cause the operator's compartment front must be designed to open type, it is comparatively abominable to drive indoor environment; Four, the front-wheel of articulated steering does not have drg, has only the trailing wheel braking, causes the car load braking force not enough, is unfavorable for braking, has potential safety hazard, and the braking force deficiency is along with the increase of cargo capacity shows particularly outstandingly.For addressing the above problem, must design a kind of light and flexible that turns to, car load is four-wheel braking, can reduce the full driving direction dish trac. of the front and back with fully closed cab and front-wheel steering of chaufeur labour intensity and working environment greatly.

The utility model content

The purpose of the utility model provides a kind of front and back full driving direction dish trac. that the front-wheel steering function is arranged; Replace articulated steering with front-wheel steering, can solve turn to overweight, steering box overload, wheel can not self-aligning, braking force is not enough and reduce problems such as driving indoor environment.

The technical scheme that the utility model adopted is:

Take steering hardware partly to be set, increase the leaf spring installation site, increase drg simultaneously, thereby realize the purpose of front-wheel steering, increase braking force, reduction chaufeur labour intensity at the f-w-d on walker tractor chassis; Problems such as the direction machine is heavy when solving articulated steering, the bearing circle beat is indefinite.Make trac. more meet the designing requirement of hommization, more the manipulation near automobile designs and handles requirement.

Architectural feature:

Full driving direction dish trac. before and after a kind of front-wheel steering; Mainly form car load by gear box of tractor assembly 23, foresteerage gear, front wheel brake structure, front propeller shaft 12, rear propeller shaft 15, coupler assembly 14, direction machine 2, frame assembly 3, drag link 6, direction machine bar 7, preceding leaf spring 10, steering wheel assembly 13, back axle assembly 17, back leaf spring 18, back driving transmission mechanism; It is characterized in that: front-wheel steering power take-off mechanism 68 is made up of spline housing 27, reducing gear 28, front wheel driving shaft prosthomere 30, center cross 33, front wheel driving shaft deutomerite 38, spline plate 39; By direction machine 2, drag link 6, direction machine bar 7, steering wheel assembly 13, intermediate rod joint arm 22, intermediate rod 24, drag link joint arm 25, turn to inner casing 31, turn to shell 34, steering shaft 44 forms foresteerage gear; Wherein: spline housing 27 is contained in the reducing gear 28; The employing spline connects, and front wheel driving shaft prosthomere 30 adopts spline to be connected with spline housing 27, and spline plate 39 is installed on the semiaxis pivoted housing 36; Front wheel driving shaft deutomerite 38 is connected with spline plate 39 usefulness splines; Both carry out universal the connection with center cross 33 front wheel driving shaft prosthomere 30 and front wheel driving shaft deutomerite 38, and direction machine 2 is installed on the frame assembly 3, and steering wheel assembly 13 is installed in the operator's compartment assembly 66; Both connect with direction machine bar 7; Turn to inner casing to be connected on the f-w-d axle bed 29, turn to shell 34 usefulness steering shafts 44 to be connected with turning to inner casing, drag link joint arm 25 is contained in left and right turning on the shell respectively with intermediate rod joint arm 22; Connect with intermediate rod 24, be connected with drag link 6 between drag link joint arm 25 and the direction machine 2.

68 left and right of described front-wheel steering power take-off mechanisms are connected to form front axle assy 9 with the casing left and right side of transmission assembly 23 with fastener respectively, before the preceding leaf spring of whole front axle assy 9 usefulness 10, preceding leaf spring saddle clamp 5, leaf spring pressing plate 8, the preceding leaf spring behind pin 4, the preceding leaf spring before the preceding leaf spring of pin 11 and frame assembly 3 behind hanger 45 and the preceding leaf spring hanger 46 be connected.

Described back driving transmission mechanism is made up of front propeller shaft 12, coupler assembly 14, rear propeller shaft 15, back axle assembly 17; Coupler assembly 14 is installed on the coupler bearing 51; The front end of front propeller shaft 12 is connected with the rear-guard clutch end of transmission assembly 23, and the rear end is connected with input end flange 54, and rear propeller shaft 15 front ends are connected with hand brake drum assembly 64; The rear end is connected with back axle assembly 17, all adopts fastener to connect.

Described coupler assembly 14 is made up of input end flange 54, adapter shaft 59, bearing seat 60, mouth flange 65, hand brake drum assembly 64; Adapter shaft 59 is installed within the bearing seat 60; Connect with bearing; Input end flange 54 is installed on the adapter shaft 59 with mouth flange 65, connects with spline, and " rotor " of hand brake drum assembly 64 is connected on the mouth flange 65 with fastener.

The front wheel brake structure connects brake assembly 42 by turning on the shell 34 with fastener, front wheel steel ring 35 is installed on the brake assembly 42 is formed.

Front wheel steel ring 35 is special to be sheet-metal forming, the disc welded type steel ring that " people " font tire of 6.00-12 is developed for disposing model.

Described frame assembly 3 is the section bar weldment, and hanger 46 is welded on the front side member 50 behind the preceding hanger 45 of preceding leaf spring, the preceding leaf spring, and hanger 49 is welded on the floor side member 52 behind the preceding hanger 48 of back leaf spring, the back leaf spring, and the connection between all parts is welding.

The beneficial effect of the utility model is: have the front and back that turn to function full driving direction dish trac., turn to more light and flexible, handle more laborsavingly, braking force is bigger, the safety that raising is gone, reduces aspect such as labour intensity and plays a positive role; Problems such as the direction machine is heavy when solving articulated steering, the bearing circle beat is indefinite.Make trac. more meet the designing requirement of hommization, more the manipulation near automobile designs and handles requirement.The utility model can be fit to various agricultural bearing circle trac.s to be used.

The utility model can use without rear drive unit in order to achieve improved gearbox front wheel steering front drive, rear drive unit can be used with a gearbox make improvements in order to achieve full drive around, according to whether the rear-wheel drive tractor unit gearbox different, the drag La Machine variable type is the front wheel steering front drive wheel tractor, tractor front wheel steering wheel rear drive, front-wheel drive steering wheel all types of tractors, three wheel drive tractor.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the utility model integral structure scheme drawing.

Fig. 2 is the utility model foresteerage gear schematic top plan view.

Fig. 3 is that the utility model foresteerage gear master looks scheme drawing.

Fig. 4 is that the utility model vehicle frame master looks scheme drawing.

Fig. 5 is the utility model vehicle frame schematic top plan view.

Fig. 6 is the utility model coupler assembly scheme drawing.

Among the figure: 1, diesel engine; 2, direction machine; 3, frame assembly; 4, pin before the preceding leaf spring; 5, preceding leaf spring saddle clamp; 6, drag link; 7, direction machine bar; 8, leaf spring pressing plate; 9, tractor chassis; 10, preceding leaf spring; 11, sell behind the preceding leaf spring; 12, front propeller shaft; 13, steering wheel assembly; 14, coupler assembly; 15, rear propeller shaft; 16, pin before the leaf spring of back; 17, back axle assembly; 18, back leaf spring; 19, back leaf spring saddle clamp; 20, saddle clamp nut; 21, sell behind the leaf spring of back; 22, intermediate rod joint arm; 23, transmission assembly; 24, intermediate rod; 25, drag link joint arm; 26, antifriction-bearing box; 27, spline housing; 28, reducing gear; 29, f-w-d axle bed; 30, front wheel driving shaft prosthomere; 31, turn to inner casing; 32, center cross; 33, steering shaft cover plate; 34, turn to shell; 35, front wheel steel ring; 36, semiaxis pivoted housing; 37, tapered roller bearing; 38, front wheel driving shaft deutomerite; 39, spline plate, 40, jam nut; 41, elastic scheibe is used in the hole; 42, brake assembly; 43, axle shaft housing; 44, steering shaft; 45, hanger before the preceding leaf spring; 46, hanger behind the preceding leaf spring; 47, intermediate longitudinal girder; 48, hanger before the leaf spring of back; 49, hanger behind the leaf spring of back; 50, front side member; 51, coupler bearing; 52, floor side member; 53, hydraulic actuating cylinder bearing; 54, input end flange; 55, fluted nut; 56, oil sealing; 57, circlip for bore; 58, antifriction-bearing box; 59, adapter shaft; 60, bearing seat; 61, antifriction-bearing box; 62, circlip for bore; 63, hand brake lever; 64, hand brake drum assembly; 65, mouth flange; 66, operator's compartment assembly; 67, compartment assembly.

The specific embodiment

(1) driving engine 1 usefulness fastener is installed on the tractor chassis 9; Before the preceding leaf spring saddle clamp of leaf spring 10 usefulness 5, leaf spring pressing plate 8 and saddle clamp nut 20 be fixed on the f-w-d axle bed 29 on the chassis 9, and be fixed on before the preceding leaf spring of frame assembly 3 behind hanger 45 and the preceding leaf spring on the hanger 46 through selling 11 behind pin 4 and the preceding leaf spring before the preceding leaf spring; Back leaf spring 18 usefulness back leaf spring saddle clamp 19, leaf spring pressing plate 8 and saddle clamp nut 20 are fixed on the back axle assembly 17, and are fixed on through pin 21 behind pin 16 before the leaf spring of back and the back leaf spring before the back leaf spring of frame assembly 2 behind hanger 48 and the back leaf spring on the hanger 49; Operator's compartment assembly 66, compartment assembly 67 and other annex of car load then are installed on the frame assembly 3.

Frame assembly 3 is the section bar weldment; Mainly be welded by parts such as hanger 49, front side member 50, coupler bearing 51, floor side member 52, hydraulic actuating cylinder bearing 53 behind hanger 48, the back leaf spring before hanger 46, intermediate longitudinal girder 47, the back leaf spring behind hanger 45, the preceding leaf spring before the preceding leaf spring; Vehicle frame is the beloid structure of stepped appearance, and leaf spring installation site before being designed with.

Under the situation of proof strength, the f-w-d axle bed of transmission assembly 23 29 is prolonged, before abdicating the installing space of leaf spring with leaf spring 10 before installing, and reducing gear 28 in increase spline housing 27.F-w-d axle bed 29 usefulness fasteners are anchored on the transmission assembly 23, turn to inner casing 31 to be welded on the f-w-d axle bed 29, turn to shell 34 to be connected in through steering shaft 44 and turn on the inner casing 31; Both are fixed on brake assembly 42 and axle shaft housing 43 simultaneously with fastener and turn on the shell 34, make front-wheel have braking function, increase the car load braking force, reduce potential safety hazard. Semiaxis pivoted housing 36 is connected on the axle shaft housing 43 through tapered roller bearing 37; And be fixed on the axle shaft housing 43 through circlip for bore 41 and jam nut 41; The brake wheel of brake assembly 42 and front wheel steel ring 35 are installed on the semiaxis pivoted housing 36 through fastener, with 36 rotations of semiaxis pivoted housing.Sheet-metal forming, disc welded type steel ring that front wheel steel ring 35 is developed for configuration 6.00-12 " people " font tire specially.Spline housing 27 inserts in the splined hole of reducing gear 28, and two ends are connected with transmission assembly 23 with antifriction-bearing box 26; Front wheel driving shaft prosthomere 30 front ends are connected with spline housing 27 with spline, and the rear end is connected with front wheel driving shaft deutomerite 38 with center cross 32; Insert in the splined hole of spline plate 39 rear end of front wheel

driving shaft deutomerite

38, and 39 of spline plates are connected with semiaxis pivoted housing 36 through fastener.Both are connected front wheel driving shaft prosthomere 30 and front wheel driving shaft deutomerite 39 and adopt universal joint cross to connect, and not only guarantee the transmission of power but also guarantee to turn to nimbly and freely.

When reducing gear 28 rotations; Power reaches spline housing 27 through reducing gear 28; Spline housing 27 is passed to power on the semiaxis pivoted housing 36 through front wheel driving shaft prosthomere 30, center cross 32, front wheel driving shaft deutomerite 38 and spline plate 39 again; Drive brake wheel, front wheel steel ring 35 rotations of semiaxis pivoted housing 36, brake assembly 42, thereby accomplish the transmission of forerunner's power, realize that wheel rolling advances.

(2) front propeller shaft 12 front ends are connected with the back mouth of tractor chassis 9 with fastener, and the rear end is connected with the input end flange 54 of coupler assembly 14 with fastener; The front end of rear propeller shaft 15 is connected with the mouth flange 65 of coupler assembly 14 with fastener, and the rear end is connected with the input end of fastener with back axle assembly 17, thereby realizes the transmission of rear-guard power.

(3) steering wheel assembly 13 is installed in the operator's compartment assembly 66, and direction machine 2 is installed on the frame assembly 3, and direction machine bar 17 front ends are connected with direction machine 2 usefulness universal-joints and fastener, and direction machine bar 17 rear ends are connected with steering wheel assembly 13 with universal-joint; " plumbing arm " on drag link 6 front ends and the direction machine 2 is connected, and the rear end is connected with drag link joint arm 25, and intermediate rod 24 1 ends connect drag link joint arm 25, one end connection horizontal pull bars and save arm 22; When bearing circle rotates, " plumbing arm " of direction machine 2 rotation, drive drag link 6 pushes away (drawing) drag link and saves arm 25, and drag link joint arm 25 drives intermediate rod 24 again, and intermediate rod 24 drives intermediate rod joint arm 22 again, realizes wheel left-hand rotation or right-hand rotation, realizes turning to of trac..

(4) when gear box of tractor assembly 23 has rear drive equipment; Front propeller shaft 12 front ends are connected with the back mouth of transmission assembly 23 with fastener; The rear end is connected with the input end flange 54 of coupler assembly 14 with fastener; Input end flange 54 usefulness fluted nuts 55 are anchored on the adapter shaft 59; Adapter shaft 59 usefulness circlip for bores 57, antifriction-bearing box 58, antifriction-bearing box 61 and circlip for bore 61 are fixed within the bearing seat 60, and adapter shaft 59 rear ends then connect mouth flange 65, and fastening with fluted nut; Hand brake drum assembly 64 " stator " is fixed on the bearing seat 60 with fastener; " rotor " of hand brake drum assembly then is anchored on the mouth flange 65 with the front end of fastener together with rear propeller shaft 15; Rotate with mouth flange 65, pulling hand brake lever 63 can realize braking during standstill.The rear end of rear propeller shaft 15 is connected with the input end of fastener with back axle assembly 17, thereby realizes the transmission of rear-guard power, forms " full driving direction dish trac. before and after the front-wheel steering ".

(5) when gear box of tractor assembly 23 does not have rear drive equipment, said mechanism is put in cancellation (4), forms " front-wheel steering before driving bearing circle trac. ".

Claims

1. full driving direction dish trac. before and after the front-wheel steering; Mainly form car load by gear box of tractor assembly (23), foresteerage gear, front wheel brake structure, front propeller shaft (12), rear propeller shaft (15), coupler assembly (14), direction machine (2), frame assembly (3), drag link (6), direction machine bar (7), preceding leaf spring (10), steering wheel assembly (13), back axle assembly (17), back leaf spring (18), back driving transmission mechanism; It is characterized in that: front-wheel steering power take-off mechanism (68) is made up of spline housing (27), reducing gear (28), front wheel driving shaft prosthomere (30), center cross (33), front wheel driving shaft deutomerite (38), spline plate (39); By direction machine (2), drag link (6), direction machine bar (7), steering wheel assembly (13), intermediate rod joint arm (22), intermediate rod (24), drag link joint arm (25), turn to inner casing (31), turn to shell (34), steering shaft (44) forms foresteerage gear; Wherein: spline housing (27) is contained in the reducing gear (28); The employing spline connects; Front wheel driving shaft prosthomere (30) adopts spline to be connected with spline housing (27); Spline plate (39) is installed on the semiaxis pivoted housing (36), and front wheel driving shaft deutomerite (38) is connected with spline with spline plate (39), and both carry out universal the connection with center cross (33) front wheel driving shaft prosthomere (30) and front wheel driving shaft deutomerite (38); Direction machine (2) is installed on the frame assembly (3); Steering wheel assembly (13) is installed in the operator's compartment assembly (66), and both connect with direction machine bar (7), turns to inner casing (31) to be connected on the f-w-d axle bed (29); Turn to shell (34) to be connected with turning to inner casing with steering shaft (44); Drag link joint arm (25) is contained in left and right turning on the shell respectively with intermediate rod joint arm (22), connects with intermediate rod (24), and drag link saves between arm (25) and the direction machine (2) and is connected with drag link (6).

2. full driving direction dish trac. before and after a kind of front-wheel steering according to claim 1; It is characterized in that: left and right of described front-wheel steering power take-off mechanism (68) is connected to form front axle assy (9) with the casing left and right side of transmission assembly (23) with fastener respectively, whole front axle assy (9) with preceding leaf spring (10), preceding leaf spring saddle clamp (5), leaf spring pressing plate (8), preceding leaf spring before behind the pin (4), preceding leaf spring before the preceding leaf spring of pin (11) and frame assembly (3) behind hanger (45) and the preceding leaf spring hanger (46) be connected.

3. full driving direction dish trac. before and after a kind of front-wheel steering according to claim 1; It is characterized in that: described back driving transmission mechanism is made up of front propeller shaft (12), coupler assembly (14), rear propeller shaft (15), back axle assembly (17); Coupler assembly (14) is installed on the coupler bearing (51); The front end of front propeller shaft (12) is connected with the rear-guard clutch end of transmission assembly (23), and the rear end is connected with input end flange (54), and rear propeller shaft (15) front end is connected with hand brake drum assembly (64); The rear end is connected with back axle assembly (17), all adopts fastener to connect.

4. according to full driving direction dish trac. before and after claim 1 or the 3 described a kind of front-wheel steerings; It is characterized in that: described coupler assembly (14) is made up of input end flange (54), adapter shaft (59), bearing seat (60), mouth flange (65), hand brake drum assembly (64); Adapter shaft (59) is installed within the bearing seat (60); Connect with bearing; Input end flange (54) is installed on the adapter shaft (59) with mouth flange (65), connects with spline, and " rotor " of hand brake drum assembly (64) is connected on the mouth flange (65) with fastener.

5. but full driving direction dish trac. before and after a kind of front-wheel steering according to claim 1; It is characterized in that: the front wheel brake structure connects brake assembly (42) by turning to shell (34) to go up with fastener, and brake assembly (42) is gone up front wheel steel ring (35) composition is installed.

6. full driving direction dish trac. before and after a kind of front-wheel steering according to claim 5 is characterized in that: front wheel steel ring (35) is sheet-metal forming, the disc welded type steel ring that " people " font tire of 6.00-12 is developed for disposing model specially.

7. full driving direction dish trac. before and after a kind of front-wheel steering according to claim 1; It is characterized in that: described frame assembly (3) is the section bar weldment; Hanger (46) is welded on the front side member (50) behind the preceding hanger (45) of preceding leaf spring, the preceding leaf spring; Hanger (49) is welded on the floor side member (52) behind the preceding hanger (48) of back leaf spring, the back leaf spring, and the connection between all parts is welding.