CN208118949U - Tractor driver's throttle returning quickly mechanism - Google Patents
Tractor driver's throttle returning quickly mechanism Download PDFInfo
- Publication number
- CN208118949U CN208118949U CN201820598799.2U CN201820598799U CN208118949U CN 208118949 U CN208118949 U CN 208118949U CN 201820598799 U CN201820598799 U CN 201820598799U CN 208118949 U CN208118949 U CN 208118949U
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- pull rod
- shift fork
- long slot
- throttle
- linkage block
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Abstract
The utility model discloses tractor driver's throttle returning quickly mechanisms, linkage block including opening up left and right perforation long slot hole, N-shaped shift fork, shift fork connecting rod, two linkage block front ends side by side are connected with the A pull rod for connecting two brake pedals respectively, rear end is connected with the B pull rod for connecting two rear wheel brakes respectively, pin hole is opened up on two bifurcateds of shift fork, pin hole is located on the outside of the long slot hole of linkage block, one shifting fork pin passes through its both ends of long slot hole and is fixed in pin hole, shift fork connecting rod bottom end is fixedly connected on shift fork, its bottom section portion is equipped with rotation fulcrum, its tip displacement pulls or pushes aside the friction plate of clamping hand throttle push rod, the clamped push rod of release.It is either whole to step on two panels brake pedal, single pedal in left and right brake, the equal returning quickly of hand throttle are still stepped on, and left and right braking mechanism is non-interference, and security risk is effectively reduced.
Description
Technical field
The utility model relates to agricultural mechanical fields, and in particular to tractor driver's throttle returning quickly mechanism.
Background technique
Present large and medium-sized wheeled tractor is equipped with hand throttle, in long range road driving or farm work by hand throttle
It shifts certain position onto, foot throttle pedal can be unclamped, vehicle keeps constant speed and moves ahead.Main purpose is to mitigate the burden of foot,
Improve driver comfort.But when reducing throttle, it is necessary to take manual mode that hand throttle is retracted lower-speed state, encounter urgent feelings
When condition, due to increasing action process, it is easy to produce safety accident.
Tractor driver's throttles all at present all without assembly returning quickly mechanism, occasionally there is technical report electronic hand throttle tool
There is safe releasing device, but does not have operability.Since tractor working environment is severe, large and middle tractor is stopped equipped with two panels
Vehicle pedal is respectively acting on the left and right wheels at rear, it can be achieved that one side brake, being conducive to surmount obstacles turns with the edge of a field for farm work
It is curved；And in road driving, speed is relatively fast, need to be linked together two panels brake pedal, prevents one side brake, causes vehicle
Sideslip.Therefore it needs return mechanism either integrally stepping on two panels brake pedal, still steps on single foot in left and right brake
Pedal, hand throttle can returning quickly, and left and right braking mechanism is not interfered, and does not influence the ontology movement of brake.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of tractor driver's throttle returning quickly mechanism, mechanical structures
Simply, only simple refit reliable operation process need to can be realized on traditional bracket arm, in emergency circumstances, either integrally
Two panels brake pedal is stepped on, single foot pedal in left and right brake, the equal returning quickly of hand throttle, and left and right braking machine are still stepped on
Structure is non-interference, and security risk is effectively reduced.
The utility model is achieved through the following technical solutions：
Tractor driver's throttle returning quickly mechanism, linkage block, N-shaped shift fork, shift fork including opening up left and right perforation long slot hole
Connecting rod, two linkage block front ends side by side respectively with connect two brake pedals A pull rod connect, rear end respectively with connect two rear-wheels
The B pull rod of brake connects, and pin hole is opened up on two bifurcateds of shift fork, and pin hole is located on the outside of the long slot hole of linkage block, a shift fork
Across long slot hole, its both ends is fixed in pin hole pin, and shift fork connecting rod bottom end is fixedly connected on shift fork, and bottom section portion is equipped with rotation
Fulcrum, tip displacement pull or push aside the friction plate of clamping hand throttle push rod, discharge clamped push rod.
The utility model is further improved scheme, and linkage block front and back end is separately connected one section of C pull rod, D pull rod, C pull rod,
Open up screw thread respectively on D pull rod and on A pull rod, B pull rod, if internal thread sleeve by A pull rod and C pull rod, B pull rod and D
Pull rod connects, and both ends internal thread machining is at oppositely oriented lines in sleeve.Sleeve clockwise or counterclockwise, shift fork position are protected
Horizontal shifting that is motionless, but realizing linkage block long slot hole is held, freely adjusting for gap is realized, to realize returning quickly mechanism
Reaction speed arbitrarily adjust, i.e., slight brake when return mechanism can be allowed to be failure to actuate, set back with specific reference to the stroke of brake
Whether position mechanism needs to act.
The further improvement project of the utility model is that the long slot hole is U-type groove, and shifting fork pin is cylindric.U-type groove with
Cylindric shifting fork pin is worked good, and stablizes and shifting fork pin is driven to travel forward.
The utility model compared with prior art, has following obvious advantage：
One, the utility model mechanical structure is simple, in emergency circumstances, either whole to step on two panels brake pedal, still
Single pedal in left and right brake is stepped on, the long slot hole of brake block drives shifting fork pin to move forward, and shift fork connecting rod generates rotation, dials
It pitches the length above connecting rod rotation fulcrum and is much larger than lower section length, the lesser displacement in lower section generates biggish displacement above,
To discharge hand throttle mechanism, make the equal returning quickly of hand throttle, and left and right braking mechanism is non-interference, and security risk is effectively reduced.
Two, since sleeve both ends internal thread machining is at oppositely oriented lines, rotating clockwise sleeve can be by the two of the inside
Lateral bracing strut is inwardly dragged；When turnbarrel counterclockwise, two lateral bracing struts of the inside can be pushed out.Since shift fork position is kept not
Dynamic, linkage block long slot hole generates horizontal shifting, and gap can freely adjust between long slot hole and shifting fork pin, can as needed really
Determine the response intensity of shift fork, to realize that the reaction speed of returning quickly mechanism is arbitrarily adjusted, i.e., slight brake when can allow return machine
Structure is failure to actuate, and sets whether return mechanism needs to act with specific reference to the stroke of brake.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is brake pedal and hand throttle linkage principle sketch.
Fig. 3 is movable hand throttle method of clamping schematic diagram.
Specific embodiment
Existing tractor machines hand throttle is a kind of rotary-push type design, and hand throttle push rod is clamped by friction plate, in spring
Pressing force effect under can be stopped at any position.It is connected with a steel wire pull line below push rod, steel wire pull line is connect with gas pedal,
When hand throttle refuels, steel wire drops gas pedal downlink, and equivalent foot is stepped on the gas oilings, when hand throttle readjustment reduction of speed, gas pedal
Itself there is return spring, restorable reduces fuel feeding.
In conjunction with installation the utility model, the clamping friction piece of hand throttle push rod is designed to it is movable, as shown in figure 3, two
Piece friction plate 13 can move left and right, and be compressed with spring 14, to clamp push rod 12, friction plate can open under external force, i.e.,
The chucking power to hand throttle push rod is lost, throttle lever can be with return.Since hand throttle has generallyd use, as long as slightly modified be
Can, emphasis be discharge hand throttle motoring torque want can be reliable by brake gear, stable generation, this is weight of the invention
Point.
Tractor generallys use shoe brake, connects two brake pedals by the way that two pull rods below chassis are arranged in
15 and two rear wheel brakes, front-wheel brakeless device.Since chassis is higher, the existing space bit of linkage mechanism is set on bracket arm
It sets, and reliable and stable.As shown in Figure 1, the utility model includes opening up left and right to penetrate through the linkage block 2 of U-shaped long slot hole 1, N-shaped shift fork
3, shift fork connecting rod 4, two 2 front ends of linkage block side by side respectively with connect two brake pedals A pull rod 5 connect, rear end respectively with
The B pull rod 6 for connecting two rear wheel brakes connects, and opens up pin hole on two bifurcateds of shift fork 3, pin hole is located at the long slot hole of linkage block
Outside, a cylindric shifting fork pin 7 pass through its both ends connecting pin bores of long slot hole 1 and are fixed on two bifurcateds, and 4 bottom end of shift fork connecting rod is solid
Surely it being connected on shift fork 3, bottom section portion is equipped with rotation fulcrum 8, while when stepping on two brake pedals, and two A pull rods 5 move forward,
The long hole slot 1 of linkage drives shifting fork pin 7 to move forward, and then shift fork 3 and shift fork connecting rod 4 is made to generate rotation, the rotation of shift fork connecting rod 4
Turn the length of 8 top of fulcrum much larger than lower section, the lesser displacement in lower section can generate biggish displacement above, and shift fork connecting rod 4 pushes up
End movement pulls or pushes aside the friction plate 13 of clamping hand throttle push rod, discharges clamped push rod 12.It is any when one side brake
The A pull rod 5 of side moves forward, and the long hole slot 1 of the linkage block of ipsilateral connection can drive shifting fork pin 7 to march forward, and then drives and dial
Fork 3 and shift fork connecting rod 4 rotate, and shifting fork pin 7 is in other side long slot hole slides forwards, the linkage block of the side and the brake of connection
A pull rod still remains stationary, interference when avoiding one side brake to another wheel.
Since long hole slot 1 drives shifting fork pin 7 to travel forward for a long time, contact portion necessarily leads to abrasion, length after A pull rod return
Gap is generated on rear side of hole slot, this reduces movement response speed because long hole slot and shifting fork pin be there are gap, long hole slot to
When preceding movement, gap is first eliminated, shifting fork pin could be driven to move, when gap is excessive, pedal of stepping on the throttle, possible shift fork is not produced
Raw movement.The size in gap is wanted freely to adjust simultaneously, to determine the response intensity of shift fork, i.e., slight brake as needed
When do not discharge hand throttle return mechanism, or there are gaps, once stepping on brake pedal, hand throttle is discharged rapidly.
To achieve the above object, two pieces of linkage blocks on pull rod are designed to that formula can be moved forward and backward, are moved forward, reduced and dial
Bolt and long hole slot rear gap, move backward, and increase shifting fork pin and long hole slot rear gap.The utility model designs linkage block
2 front and back ends are separately connected one section of C pull rod 9, D pull rod 10, open up respectively on C pull rod 9, D pull rod 10 and on A pull rod 5, B pull rod 6
Screw thread, if internal thread sleeve 11, by A pull rod and C pull rod, B pull rod is connect with D pull rod, both ends internal thread machining in sleeve 11
At oppositely oriented lines.Rotating clockwise can inwardly drag two lateral bracing struts that be connected to the inside, counterclockwise when rotation, can incite somebody to action
Two lateral bracing struts of the inside push out.If reduce gap, linkage block rear screw shell is rotated counterclockwise, while front
Screw shell rotates clockwise, and pushes linkage block before being equivalent to rear direction, linkage block is pulled before front direction, can be realized connection in this way
Motion block is forward to be moved horizontally, and does not generate rotation.When increasing gap, opposite operation is executed.Since shift fork position is protected
It holds motionless, can realize the horizontal shifting of long hole slot by above-mentioned design, it, can by rotation front and back inner thread sleeve circle number
Realize freely adjusting for gap.
Claims (3)
1. tractor driver's throttle returning quickly mechanism, it is characterised in that：Including opening up left and right perforation long slot hole（1）Linkage block
（2）, N-shaped shift fork（3）, shift fork connecting rod（4）, two linkage blocks side by side（2）Front end respectively with the A pull rod that connect two brake pedals
（5）Connection, rear end respectively with the B pull rod that connect two rear wheel brakes（6）Connection, shift fork（3）Two bifurcateds on open up pin hole,
Pin hole is located on the outside of the long slot hole of linkage block, a shifting fork pin（7）Across long slot hole（1）Its both ends is fixed in pin hole, and shift fork connects
Bar（4）Bottom end is fixedly connected on shift fork（3）On, bottom section portion is equipped with rotation fulcrum（8）, tip displacement pulls or pushes clamping aside
The friction plate of hand throttle push rod discharges clamped push rod.
2. tractor driver's throttle returning quickly mechanism according to claim 1, it is characterised in that：Linkage block（2）Front and back end
It is separately connected one section of C pull rod（9）, D pull rod（10）, C pull rod（9）, D pull rod（10）Upper and A pull rod（5）, B pull rod（6）Upper point
Screw thread is not opened up, if internal thread sleeve（11）By A pull rod and C pull rod, B pull rod is connect with D pull rod, sleeve（11）Interior both ends
Internal thread machining is at oppositely oriented lines.
3. tractor driver's throttle returning quickly mechanism according to claim 1 or 2, it is characterised in that：The long slot hole（1）
For U-type groove, shifting fork pin（7）It is cylindric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820598799.2U CN208118949U (en) | 2018-04-25 | 2018-04-25 | Tractor driver's throttle returning quickly mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820598799.2U CN208118949U (en) | 2018-04-25 | 2018-04-25 | Tractor driver's throttle returning quickly mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208118949U true CN208118949U (en) | 2018-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820598799.2U Active CN208118949U (en) | 2018-04-25 | 2018-04-25 | Tractor driver's throttle returning quickly mechanism |
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| Country | Link |
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| CN (1) | CN208118949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340780A (en) * | 2018-04-25 | 2018-07-31 | 淮安生物工程高等职业学校 | Tractor driver's throttle returning quickly mechanism |
-
2018
- 2018-04-25 CN CN201820598799.2U patent/CN208118949U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340780A (en) * | 2018-04-25 | 2018-07-31 | 淮安生物工程高等职业学校 | Tractor driver's throttle returning quickly mechanism |
| CN108340780B (en) * | 2018-04-25 | 2023-12-26 | 淮安生物工程高等职业学校 | Quick return mechanism for hand throttle of tractor |
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