CN2271984Y - Multi-functional means for increasing anti-skid and self-saving ability of waling tractor - Google Patents

Abstract

The utility model provides a device which is connected with a hand tractor and can enhance the operating capability and increase the use functions; the utility model is composed of a series of gears and can change the high speed low torque motive power which comes from the engagement of the hand tractor into a low speed big torque motive power, and the low speed big torque motive power is output from a special output axis; the strong pulling force generated by a steel cable which is winded on the output axis via the twist of the torque of the output axis can pull out tractors and slip or realize self aid in other difficulties, or the function of a winding engine is completed.

Description

A kind of multi-function device that increases anti-skidding self-saving ability to walker tractor

The utility model relates to a kind ofly increases functions of use to walker tractor, strengthens operational capability, particularly strengthen its in the mountain region, a kind of auxiliary device of mal-condition operating capability such as depression, building site, mining area and muddy road surface.

Walker tractor adopts the f-w-d mode, and its load mainly is distributed on the trailer, thereby, when running into situation such as big slightly obstacle or muddy road surface, occur easily skidding.Skidding, has been the problem of each walker tractor palmistry when headache, particularly often is operated in the walker tractor on building site, mining area, the simply-built highway etc., and this situation is particularly outstanding.In addition, the principal market of walker tractor is also in the rural area, and the various electrical equipments in current rural area also seldom, owing to there is not winch, in many rural areas even some little county towns, reinforcing bar for building walker tractor commonly used is loaded onto weight and is come exceptionally straightly on highway by inertia and dash, but this quite bothers, two come the damage of car very greatly, also have other much to need the also all unable realization of occasion of winch.

The purpose of this utility model is to provide a kind of can make things convenient for the bonded assembly device with walker tractor, when it can solve walker tractor more effectively and is absorbed in predicaments such as the ditch that skids, falls, the problem of saving oneself can utilize the power of walker tractor own to realize the function of a winch again.

For reaching above-mentioned purpose, the solution that the utility model adopts is: convert low speed high torque power from former change speed gear box taking-up high speed low torque power to through this device speed change and export from an output shaft, lay winding wire ropes on this output shaft (being similar to the output shaft of winch), output shaft rotates, just receive the strand steel rope, when being absorbed in, walker tractor skids or during predicament such as the ditch that falls, the steel rope other end is hung on the upholder of the place ahead, power-transfer clutch closes, the powerful pulling force that produces when utilizing steel rope to receive strand is pulled out car and is stranded ground, perhaps allow walker tractor place Neutral Position, walker tractor front and back wheel plug extremely or with other method is fixed vehicle body, whether rotation by this device special clutch control output shaft, just realized the function of a winch.

The utility model device serial connection is between former change speed gear box and traction frame, thereby convenient the connection, and need not change former gearbox designs, does not influence former machine operation, realizes easily control reaching required purpose.

The utility model device can also merge former oil pressure from the function of driving car oil pump change-speed box.

Below in conjunction with drawings and Examples utility model is described further.

Accompanying drawing is the constructional drawing of the foregoing description, (bearing that each all has among the figure, bearing cap shim, oil sealing and other minor components are not all drawn).

In the accompanying drawing, 14 is former machine gearbox body, and 15 are this device body, and 16 is traction frame, and 14,15,16 can be serially connected compactly.Owing to this device has merged oil pressure from the function of driving car oil pump change-speed box, replaced its position, and this device body longitudinal length little (being not more than 25CM), thereby do not influence former machine driving and operation after the serial connection.

This device adopts three-step gear shift, its medium power is obtained from the driving tooth 1 that reverses gear of former machine gearbox, by 1 and the engagement of I level speed change big gear wheel 2 finish I level speed change, by spline engagement power has been passed on the II level change speed pinion 3 simultaneously, 3 and II level speed change canine tooth change 4 engagements and finish II level speed change, simultaneously by spending strong engagement that power is passed on the III level change speed pinion 5,5 and the engagement of III level speed change big gear wheel 6 finish III level speed change, 6 pass to power on the output shaft 7 by spline engagement.The part lay winding wire ropes 17,18 that output shaft 7 is stretched outside body 15 is the baffle plate of steel rope 17.The 8th, retracing spring is to guarantee that unclamping back 6 at clutch fork 9 can withdraw from and 5 engagement reliably.The V-shaped layout of III level speed change, and I level no-load voltage ratio is between 1/3～1/4, and II level no-load voltage ratio is between 1/4～1/6, and III level no-load voltage ratio is levied the body longitudinal length with the guarantor and is not more than 25CM between 1/3～1/5, and reverse gear driving tooth 1 is not less than 40 with the revolution ratio of output shaft 7.

10,11,12,13 composition is in order to merge former oil pressure from the function of driving car oil pump change-speed box in the accompanying drawing.13 is an output shaft, and the one end has square groove, can be connected with oil pump, the engagement that clutch fork 10 can be controlled miniature gears 12 and 2 whether, thereby whether control 13 rotation.The size of the diameter of miniature gears 12 is about the diameter of the driving tooth 1 that reverses gear, to guarantee the required rotating speed of oil pump normal operation.

Claims (3)

1, a kind of multi-function device that increases anti-skidding self-saving ability to walker tractor, it is made up of body, shift fork and a series of variable gear and the output shaft that can receive the strand steel rope, it is characterized in that, this device directly is serially connected between former change speed gear box of walker tractor (14) and the traction frame (16), and a variable gear (2) and an output shaft (7) that is used to export the low speed high torque power after this device speed change that directly takes out high speed low torque power with former change speed gear box reverse gear driving tooth engagement is arranged.

2, according to the described device of claim 1, it is characterized in that the reverse gear driving tooth (1) and the revolution ratio of output shaft (7) are not less than 40, the horsepower output that output shaft (7) can bear is not less than 3KW.

3,, it is characterized in that the longitudinal length of body (15) is not more than 25CM according to claim 1,2 described devices.

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