CN201276107Y

CN201276107Y - Hand braking maneuver mechanism of tractor

Info

Publication number: CN201276107Y
Application number: CNU200820160222XU
Authority: CN
Inventors: 张俊; 鄢云林
Original assignee: CHANGZHOU DONGFENG AGRICULTURAL MACHINERY GROUP Co Ltd
Current assignee: CHANGZHOU DONGFENG AGRICULTURAL MACHINERY GROUP Co Ltd
Priority date: 2008-09-27
Filing date: 2008-09-27
Publication date: 2009-07-22
Anticipated expiration: 2018-09-27

Abstract

The utility model relates to a tractor hand brake control mechanism which comprises a brake transmission shaft, brake pedals, a brake rocker, an offsetting spring, a brake pull rod, a hand brake and a hand brake pull rod. The two brake pedals provided with upper swing arms are installed on the brake transmission shaft; one end of the brake pull rod is connected with the upper swing arms and the other end is connected with the brake rocker; one end of the offsetting spring is installed on the brake rocker and the other end is installed on a box body; the brake pedals arranged at one side of the hand brake are also provided with lower swing arms; a rotating arm is hinged at the middle-lower part of the box body, with one end connected with the lower swing arms through the hand brake pull rod and the other end connected with the lower part of a vertical bar; the upper part of the vertical bar is connected with a control piece of the hand brake; and the hand brake is installed on the box body through a support plate. The tractor hand brake control mechanism is convenient to operate and reliable in braking and can well ensure the braking safety of the driver of the tractor in an emergency.

Description

The trac. hand brake operation mechanism

Technical field

The utility model relates to a kind of trac. hand brake operation mechanism, belongs to wheel-tire tractor car brake operation technical field.

Background technology

For middle small wheeled tractor, parking Parking handle just uses when Parking, and can not use as braking.But along with the variation of the development and change of foreign market, particularly European new regulation, it is more reasonable to need, and hand brake operation mechanism satisfies client's demand more efficiently, and this kind hand braking mechanism can be worked as the Parking handle and be used, and can play the effect of emergency braking again.Though some hand brake operation mechanisms can be connected hand brake by flexible axle with stretcher, realize that in vehicle ' braking has the function of braking during standstill concurrently.But need frequent braking in the vehicle ' process, flexible axle just can reach the failure-free braking effect because of stretching needs frequent the adjusting, so use comparatively loaded down with trivial details.On the other hand, the hand brake operation mechanism of this structure, braking during standstill are upwards to lift operation, handle inconvenience.

Summary of the invention

The utility model purpose provides a kind of easy to operate, reliable, can reach the trac. hand brake operation mechanism of stopping brake in braking during standstill.

The utility model is that the technical scheme that achieves the above object is: a kind of trac. hand brake operation mechanism, comprise brake and transmission shaft, brake pedal, brake rocker arm, retracing spring, lever connection, hand brake and parking brake lever, it is characterized in that: two brake pedals with top link are installed on the brake and transmission shaft, lever connection one end is connected with top link, the other end is connected with brake rocker arm, retracing spring one end is installed in brake rocker arm, and the other end is installed on the casing; The described brake pedal that is positioned at hand brake one side also has following swing arm, the casing middle and lower part is hinged with pivoted arm, pivoted arm one end is connected with following swing arm by parking brake lever, the pivoted arm other end is connected with the bottom of montant, montant top is connected with the controls of hand brake, and hand brake is installed on the casing by stay bearing plate.

The utility model is installed in manual device on the casing, and a pivoted arm is also installed in the casing middle and lower part, pivoted arm one end is connected with controls on the hand brake by montant, the pivoted arm other end is connected with hand braking pulling, rotates with the pumping arm action of control brake pedal, makes operator on the tractor can use hand operation when pin is stepped on the braking inconvenience, the function that not only has the parking Parking, but also played braking effect, owing to adopt full mechanical connecting structure, braking is reliable.The utility model adopts Tiebar structure, need not frequent adjusting yoke, handles lightly, flexible, especially hand brakingly operates for press-down type, more meets human engineering, makes the operator that better feel be arranged, and ensures operator on the tractor brake safe in emergency circumstances well.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the plan structure scheme drawing of Fig. 1.

Fig. 3 is the A-A sectional structure scheme drawing of Fig. 1.

Fig. 4 is that the B of Fig. 2 is to structural representation.

Wherein: 1-hand brake, 2-stay bearing plate, 3-casing, 4-drg, 5-brake rocker arm, the 6-retracing spring, 7-montant, 8-rebound, 9-pivoted arm, 10-lever connection, the 11-parking brake lever, 12-top link, swing arm under the 13-, 14-brake and transmission shaft, 15-brake pedal.

The specific embodiment

Shown in Fig. 1～4, trac. hand brake operation mechanism of the present utility model comprises brake and transmission shaft 14, brake pedal 15, brake rocker arm 5, retracing spring 6, lever connection 10, hand brake 1, parking brake lever 11 and montant 7 and pivoted arm 9.See shown in Fig. 1,2, brake and transmission shaft 14 is installed on the vehicle frame, two braking pedals 15 have axle sleeve, axle sleeve is sleeved on the brake and transmission shaft 14 and by fastener and connects, two braking pedals 15 are installed in brake and transmission shaft 14, two brake pedals 15 have top link 12, this top link 12 can directly be welded on the axle sleeve, lever connection 10 1 ends are connected with top link 12, the other end is connected with brake rocker arm 5, brake rocker arm 5 is connected with the cam of drg 4, and retracing spring 6 one ends are installed in brake rocker arm 5, and the other end is installed on the casing 3.See shown in Fig. 1,2, the brake pedal 15 that is positioned at hand brake 1 one sides also has following swing arm 13, and this time swing arm 13 is welded on the axle sleeve, and casing 3 middle and lower parts are hinged with pivoted arm 9, see shown in Fig. 1,3, this pivoted arm 9 is V-shaped, and pivoted arm 9 closed ends are welded with axle sleeve, and rebound 8 is dihedral, one side of rebound 8 is installed on the casing 3 by bolt, the connection bearing pin passes axle sleeve and is connected with the opposite side of rebound 8, pivoted arm 9 is installed on the casing 3, and along the rotational that connects bearing pin.Parking brake lever 11 1 ends are connected with an end of pivoted arm 9, parking brake lever 11 other ends then are connected with following swing arm 13, see shown in Fig. 1,4, hand brake 1 is installed on the casing 3 by stay bearing plate 2, pivoted arm 9 another ends are connected with montant 7 bottoms, and montant 7 tops are connected with the operating parts of hand brake 1.

During the utility model work, press down the handle of hand brake 1, the operating parts of hand brake 1 drives montant 7 and moves up, pivoted arm 9 is rotated counterclockwise, pivoted arm 9 drives parking brake lever 11 and following swing arm 13 and top link 12 again and rotates along brake and transmission shaft 14, top link 12 drives lever connections 10 makes brake rocker arm 5 strut the cam of drg 4, drg 4 stopping-downs.

Claims

1, a kind of trac. hand brake operation mechanism, comprise brake and transmission shaft, brake pedal, brake rocker arm, retracing spring, lever connection, hand brake and parking brake lever, it is characterized in that: two brake pedals with top link are installed on the brake and transmission shaft, lever connection one end is connected with top link, the other end is connected with brake rocker arm, retracing spring one end is installed in brake rocker arm, and the other end is installed on the casing; The described brake pedal that is positioned at hand brake one side also has following swing arm, the casing middle and lower part is hinged with pivoted arm, pivoted arm one end is connected with following swing arm by parking brake lever, pivoted arm other end end is connected with the montant bottom, montant top is connected with the controls of hand brake, and hand brake is installed on the casing by stay bearing plate.

2, trac. hand brake operation mechanism according to claim 1, it is characterized in that: described pivoted arm is V-shaped, and the pivoted arm closed end is welded with axle sleeve, and on rebound, the rebound that is dihedral is installed on the casing axle sleeve by the connecting pin axle mounting.