CN202242799U - Tractor front driving device with high safety - Google Patents
Tractor front driving device with high safety Download PDFInfo
- Publication number
- CN202242799U CN202242799U CN2011203060400U CN201120306040U CN202242799U CN 202242799 U CN202242799 U CN 202242799U CN 2011203060400 U CN2011203060400 U CN 2011203060400U CN 201120306040 U CN201120306040 U CN 201120306040U CN 202242799 U CN202242799 U CN 202242799U
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- brake
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- axle
- front driving
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Abstract
The utility model discloses a tractor front driving device with high safety. A tractor front driving shaft in the prior art is easy to break suddenly in the course of use to result in safety accidents because of the low safety of the tractor front driving device. A half-axle sleeve for supporting and a brake device for braking are additionally arranged on the front driving axle housing, the half-axle sleeve and the front driving axle housing are connected and fixed together to form a mechanism enough for supporting the front axle of a tractor; and a brake device is additionally arranged on a front driving wheel after an integral body is formed by connecting and fixing a brake bottom plate with the half-axle sleeve and the front driving axle housing. The safety performance is increased through the additionally arranged half-axle sleeve and the brake device, therefore, the braking is more flexible, better in effects and higher in efficiency.
Description
Technical field
The utility model relates to the trac. front driving device, especially a kind of trac. front driving device that has increased safety, said trac. comprise walker tractor transportation unit and hand-variable transport plane.
Background technology
Walker tractor transportation unit or hand-variable transport plane all have and turn to the characteristics light and handy flexibly, that turn radius is little, load carrying ability is big, climbing power is strong, are specially adapted to the road surface is narrow, road conditions are abominable rural area, mountain area, forest zone and mine hauling operation.We can say that the type trac. has vast potential for future development.But because usage condition is abominable, and the walker tractor drive axle in use tends to unexpected fracture, cause safety misadventure simultaneously.For this reason, existing terms of settlement just constantly strengthens axle drive shaft, hopes to reduce with this measure the probability of axle drive shaft fracture, maximum in the market semiaxis diameter even reach 60mm, and this has increased cost on the one hand, and result of use is unsatisfactory on the other hand.Therefore, a kind of safer before driving form being provided, is the problem that the utility model need solve with the safety performance that improves walker tractor transportation unit or hand-variable transport plane.Meanwhile; Road conditions that trac. goes and traffic environment are very complicated; Be to guarantee driving safety, trac. is at bend and uneven road surface goes or during meeting, must reduce the speed of a motor vehicle; Particularly in the time might running into obstacle, collision pedestrian and other vehicle, need reduce the speed of a motor vehicle or parking immediately; When also having the trac. lower long slope, by gravity, its speed has the trend of continuous acceleration, and should be controlled at the speed of a motor vehicle in certain scope this moment, and guaranteeing traffic safety, these have only through braking and solve.Yet up to the present walker tractor transportation unit or hand-variable transport plane all are not provided with the drive axle brake system; Only rear axle is provided with machinery or hydraulic brake system; Poor stop, brake system is short service life, and is insensitive owing to braking in driving; Brake efficiency is poor, and the safety misadventure that vehicle inertia causes too greatly happens occasionally.Therefore, braking is walker tractor transportation unit or the developing bottleneck of hand-variable transport mechanism technology for making, is a technical barrier that does not obtain fine solution for a long time.Therefore, improving the in-use performance of walker tractor transportation unit or hand-variable transport plane, improve deceleration and stopping performance, strengthen safety in utilization, is necessary.Through retrieval, do not find to have the disclosure of correlation technique.
Summary of the invention
Goal of the invention
The purpose of the utility model provides a kind of trac. front driving device that has increased safety; Solving existing walker tractor transportation unit and hand-variable transport plane drive axle in abominable road conditions are gone ruptures easily; And the safety issue that does not have the front driving wheel brake system to be prone to cause, thereby improved travel safety.
The principle of work that the utility model increases the axle drive shaft safety is: through changing the pattern of trac. drive axle and driving shaft shell; Set up before driving axle housing tie bolt simultaneously; Strengthen the semiaxis fixed form, the pattern that original drive axle collection is driven and is supported for one resolves into drive axle and two function various parts of axle tube, and promptly drive axle only is responsible for the transmission of forerunner's power; Axle tube is responsible for the support of front axle; This pattern that drive axle is separated has changed original axle drive shaft pattern, has formed double insurance.
The brake system principle of work of the utility model is: one is that the metal brake wheel of running surface is fixed on the wheel nave with the inner headed face, together rotates with wheel.On fixed back-plate, two rest pins are arranged, the lower end of supporting two arc brake shoe brake cheek.On the periphery of brake shoe brake cheek friction lining is housed.The hydraulic braking wheel cylinder also is housed on the back-plate, is connected with hydraulic braking master cylinder on being contained in vehicle frame with oil pipe.Chaufeur is handled through brake treadle mechanism.When brake system is not worked, maintain certain clearance between the inner headed face of brake wheel and the periphery of brake shoe lining, wheel and brake wheel can be rotated freely.Trac. in going is slowed down; Chaufeur should be stepped on brake pedal; Master cylinder piston through push rod promotion master brake cylinder makes master cylinder inside brake liquid under certain pressure, flow into brake cylinder, and promotes through the brake cylinder piston; Two brake shoe brake cheek are rotated around rest pin, and the upper end separately makes its friction lining be pressed on the inner headed face of brake wheel to both sides.Like this, non-rotary brake shoe brake cheek friction moment opposite of brake wheel effect just with wheel steering to rotating.After brake wheel passes to wheel with this moment owing between wheel and road surface adhewsive action is arranged, wheel road pavement effect one periphery power forward, simultaneously the road surface also to wheel effect antagonistic force backward, i.e. a braking force.Force whole trac. to produce certain deceleration/decel.Braking force is bigger, and then the trac. deceleration/decel is also bigger.When decontroling brake pedal, pull back spring is about to brake shoe brake cheek and retracts original position, and friction moment and braking force disappear, and brake action stops at once.
For realizing above-mentioned purpose; The utility model has been taked following technical proposals: a kind of trac. front driving device that has increased safety; Comprise the walker tractor transmission assembly, be fixed on the before driving axle housing on the transmission assembly, by forerunner's output shaft of main gearbox driving; And the preceding wheel assembly that comprises wheel hub, hub bearing and front vehicle wheel that is connected and rotates synchronously with forerunner's output shaft; Installing and fixing axle tube on the before driving axle housing, axle tube is equipped with wheel hub through hub bearing, makes wheel hub to rotate around axle tube; Axle tube also is connected the fixing integral body that forms with back-plate through fastener; Brake cylinder is fixed on the back-plate; Brake shoe brake cheek and be fixed on friction lining on the brake shoe brake cheek through rest pin and dowel fixes on back-plate, brake shoe brake cheek can separately make friction lining be pressed on the inner headed face of brake wheel to both sides.
Take the utility model of above-mentioned measure; Increased the brake equipment that passive axle tube has reached brake action; Axle tube and before driving axle housing are connected and fixed and have formed the mechanism that is enough to support the trac. front axle; With the driving of drive axle and support function separately after, make axle drive shaft rupture suddenly even walker tractor goes under abominable road conditions, can not cause safety issue yet.In addition; Back-plate and axle tube be connected with the before driving axle housing fixing form an integral body after; Brake cylinder is fixed on the back-plate; And brake shoe brake cheek and friction lining through rest pin and dowel fixes on back-plate, thereby can become a single-piece part to transmit and then the realization braking effect through said fixing the braking force that braking produces.Axle tube and the brake equipment of the utility model of taking above-mentioned measure through increasing at safety performance, and more sensitivity, better effects if, efficient are higher to make braking.
For specifying the utility model, the utility model is detailed below in conjunction with accompanying drawing and embodiment.
Description of drawings
Fig. 1 is the structural representation of monolateral drive axle of the utility model trac. and braking system part;
Fig. 2 is the partial enlarged drawing of the utility model Fig. 1;
Fig. 3 is the scheme drawing that the utility model trac. before driving axle housing is strengthened captive joint;
Fig. 4 is that the hydraulic circuit of the utility model trac. brake system connects scheme drawing.
The specific embodiment
Trac. all has the actuating device and the wheel of the right and left, and the structure of the right and left is same, in order more clearly to describe the structure of the utility model, at this monolateral front driving device and brake equipment is described.
Fig. 1, Fig. 2 are the structural representation and the partial enlarged drawings of monolateral drive axle of the utility model trac. and braking system part; Before driving axle housing 1 is fixed on the gear box of tractor assembly 2 through thru-bolt shown in figure; Axle tube 4 uses thru-bolt to be connected with back-plate 5 with before driving axle housing 1, and tire 6 is installed on the steel ring 7, and steel ring 7 and brake wheel 8 are installed on the wheel hub 9; Between wheel hub 9 and the axle tube 4 hub bearing 10 is installed; So far, tire 6 can also play the effect of supporting trac. around axle tube 4 rotations.On back-plate 5; Also be mounted with brake shoe brake cheek 11; Brake shoe brake cheek 11 rotates around rest pin 12; Also be fixed with friction lining 13 on the brake shoe brake cheek 11, brake shoe brake cheek 11 separately makes the friction lining 13 of brake shoe brake cheek 11 be pressed on the inner headed face of brake wheel 8 in upper end under the effect of brake cylinder 14 to both sides, thereby non-rotary brake shoe brake cheek 11 just produces brake action to the friction moment with tire 6 switched in opposite of brake wheel 8 effects that is rotating to the wheel that rotates.
Shown in Figure 3 is in order to strengthen intensity, to use before driving axle housing tie bolt 3 to strengthen connecting between the left and right before driving axle housing 1, having guaranteed that driving shaft shell 1 can be fixed on the trac. main-gear box assembly 2 firmly, is difficult for causing fracture.
Fig. 4 is that the hydraulic circuit of the utility model trac. brake system connects scheme drawing; After operator on the tractor is stepped on brake pedal 15; Master cylinder piston through brake push rod 16 promotion master brake cylinder 17 makes the master cylinder inner fluid under certain pressure, flow into brake cylinder 14, and promotes through the piston of four brake cylinders 14; Two brake shoe brake cheek 11 are rotated around rest pin 12, and the upper end separately makes the friction lining 13 of brake shoe brake cheek 11 be pressed on the inner headed face of brake wheel 8 to both sides.Like this, non-rotary brake shoe brake cheek 11 is just to one of brake wheel 8 effect of the rotating friction moment with tire 6 switched in opposite.After brake wheel 8 passes to tire 6 with this moment, owing between tire 6 and road surface adhewsive action is arranged, tire 6 road pavement effects one periphery power forward, the road surface is also acting on antagonistic force backward, i.e. a braking force to tire 6 simultaneously.Braking force is passed to Frame and Body by tire 6 through before driving axle housing 1 and gear box of tractor assembly 2, forces whole trac. to produce certain deceleration/decel.Braking force is bigger, and then the trac. deceleration/decel is also bigger.When decontroling brake pedal 15, pull back spring 18 is about to brake shoe brake cheek 11 and retracts original position, and friction moment and braking force disappear, and brake action stops at once.The power that the above-mentioned upper end that makes brake shoe brake cheek 11 separates to both sides is to utilize hydraulicdriven power; Thereby the power that can also utilize air-driven power or power operation to produce in addition makes the upper end of brake shoe brake cheek 11 separately produce brake action to both sides; Its know-why is the same; Just realize by Hydraulic Pump, air lift pump or power operation respectively, so in this specification sheets, describe no longer one by one.The enforcement of the utility model is to adopt mechanical part to be assembled according to the machinery assembling principle of routine.
Claims (2)
1. trac. front driving device that has increased safety; Comprise the walker tractor transmission assembly; Be fixed on the before driving axle housing on the transmission assembly; Forerunner's output shaft by transmission assembly drives reaches the preceding wheel assembly that comprises wheel hub, hub bearing and front vehicle wheel that is connected and rotates synchronously with forerunner's output shaft, it is characterized in that the axle tube (4) that on the before driving axle housing, installs and fixes; Axle tube (4) is equipped with wheel hub (9) through hub bearing (10), makes wheel hub (9) to rotate around axle tube (4); Axle tube (4) also is connected the fixing integral body that forms with back-plate (5) through fastener; Brake cylinder (14) is fixed on the back-plate (5); Brake shoe brake cheek (11) and be fixed on friction lining (13) on the brake shoe brake cheek (11) through rest pin (12) and dowel fixes on back-plate (5), brake shoe brake cheek (11) can separately make friction lining (13) be pressed on the inner headed face of brake wheel (8) to both sides.
2. the described a kind of trac. front driving device that has increased safety of root a tree name claim 1 is characterized in that between left and right before driving axle housing (1), being connected with driving shaft shell tie bolt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203060400U CN202242799U (en) | 2011-08-22 | 2011-08-22 | Tractor front driving device with high safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203060400U CN202242799U (en) | 2011-08-22 | 2011-08-22 | Tractor front driving device with high safety |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202242799U true CN202242799U (en) | 2012-05-30 |
Family
ID=46104089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203060400U Expired - Fee Related CN202242799U (en) | 2011-08-22 | 2011-08-22 | Tractor front driving device with high safety |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202242799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381136A (en) * | 2011-08-22 | 2012-03-21 | 广西合浦县惠来宝机械制造有限公司 | Tractor front-driving device with improved safety |
-
2011
- 2011-08-22 CN CN2011203060400U patent/CN202242799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381136A (en) * | 2011-08-22 | 2012-03-21 | 广西合浦县惠来宝机械制造有限公司 | Tractor front-driving device with improved safety |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20180822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |