CN204362538U - A kind of novel hydraulic braking in a turn system for boat tractor - Google Patents
A kind of novel hydraulic braking in a turn system for boat tractor Download PDFInfo
- Publication number
- CN204362538U CN204362538U CN201420822033.XU CN201420822033U CN204362538U CN 204362538 U CN204362538 U CN 204362538U CN 201420822033 U CN201420822033 U CN 201420822033U CN 204362538 U CN204362538 U CN 204362538U
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- brake
- push rod
- master cylinder
- cylinder
- wheel
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Abstract
A kind of novel hydraulic braking in a turn system for boat tractor, comprise left front, right front, left back, right back Bidirectional brake wheel cylinder, there is a left side for hydraulic cylinder and push rod, right master cylinder, turbine and worm mechanism, there is interconnective brake silpper guide rod, the footrest mechanism of brake pedal, left, right worm thrust spring, left, right brake spring, with there is interconnective steering wheel, the steering mechanism of steering spindle, wherein, footrest mechanism is by left, right brake spring controls left, the motion of the push rod of right master cylinder, thus brake while realizing boat tractor four tires, steering mechanism is by turbine and worm mechanism and a left side, right worm thrust spring controls left, the motion of the push rod of right master cylinder, thus realize turning to of boat tractor, one side brake.It is simple that the utility model has structure, easy to operate, safe and reliable, can avoid boat tractor wheel-slip and realize the advantage that boat tractor fast, accurately turns to.
Description
Technical field
The utility model relates to agro-farming mechanical field, is specifically related to a kind of novel hydraulic braking in a turn system for boat tractor.
Background technology
The use of boat tractor starts from China seventies in last century, and it utilizes slick and frivolous formula operation principle to carry out paddy-field-working, is one of Main Agricultural machinery of using of south China Rice Cropping region.
Existing boat tractor mainly adopts directive wheel to turn to.When needs boat tractor turns left, after being rotated counterclockwise by steering wheel, the relative ground of boat tractor front-wheel is rotated counterclockwise certain angle, realizes boat tractor.The friction on what the realization of this steering mode relied on is wheel and ground.But, when boat tractor is in deep mud feet fields farming, wheel and frictional ground force less, now rely on this steering mode to turn to often to exist steering operation complexity, easily skid, security reliability difference and the deficiency such as turnaround time is long.
Summary of the invention
The utility model, in order to overcome above-mentioned the deficiencies in the prior art, provides a kind of tractor-ploughing marine hydraulic braking steering, and its structure is simple, easy to operate, safe and reliable, boat tractor wheel-slip can be avoided and realize boat tractor quick, accurately turn to.
The technical solution of the utility model:
A kind of novel hydraulic braking in a turn system for boat tractor, comprise left front, right front, left back, right back Bidirectional brake wheel cylinder, there is the left and right master cylinder of hydraulic cylinder and push rod, the middle part turbo-turbine and worm mechanism of tool, footrest mechanism, left and right worm thrust spring, left and right brake spring, with the steering mechanism with interconnective steering wheel, steering spindle, wherein, left front, right front, left back, right back Bidirectional brake wheel cylinder is arranged on the near front wheel of boat tractor, off-front wheel, left rear wheel and off hind wheel respectively; Left front, left back Bidirectional brake wheel cylinder is connected respectively by the hydraulic cylinder of oil circuit with left master cylinder, and right front, right back Bidirectional brake wheel cylinder is connected respectively by the hydraulic cylinder of oil circuit with right master cylinder; The left end of turbine and worm mechanism is connected with the push rod of left master cylinder by left worm thrust spring, right-hand member is connected with the push rod of right master cylinder by right worm thrust spring; Footrest mechanism comprises the brake silpper guide rod that left end is connected with the push rod of left master cylinder by left brake spring, right-hand member is connected with the push rod of right master cylinder by right brake spring, with stressed after the left and right end of brake silpper guide rod can be driven to move respectively to left and right side brake pedal, brake silpper guide rod and brake pedal are interconnected; One end closure dish of steering spindle, the other end connect the turbine in the middle part of turbine and worm mechanism.
Left-hand rotation steering wheel, drive turbine and worm mechanism to left movement by steering spindle and compress left worm thrust spring, thus the push rod promoting left master cylinder to left movement with this hydrodynamic force, this hydraulic coupling acts on left front, left back Bidirectional brake wheel cylinder respectively by oil circuit, thus realizes one side brake on the left of boat tractor; Now, under the effect of the differential mechanism of boat tractor, the rotating speed of boat tractor the near front wheel, left rear wheel lower than the rotating speed of off-front wheel, off hind wheel, thus realizes boat tractor simultaneously.Right-hand rotation steering wheel, turbine and worm mechanism is driven to move right and compress right worm thrust spring by steering spindle, thus the push rod promoting right master cylinder moves right with this hydrodynamic force, this hydraulic coupling acts on right front, right back Bidirectional brake wheel cylinder respectively by oil circuit, thus realizes one side brake on the right side of boat tractor; Now, under the effect of the differential mechanism of boat tractor, the rotating speed of boat tractor off-front wheel, off hind wheel lower than the rotating speed of the near front wheel, left rear wheel, thus realizes boat tractor simultaneously and turns right.Therefore, the utility model not only structure is simple, easy to operate, and can avoid boat tractor wheel-slip.Step on brake pedal, the left and right end of brake silpper guide rod is driven to move respectively to left and right side, and then compress left and right brake spring respectively, the push rod promoting left and right master cylinder respectively to left and right motion with this hydrodynamic force, this hydraulic coupling acts on left front, right front, left back, right back Bidirectional brake wheel cylinder respectively by oil circuit, brake while finally realizing boat tractor the near front wheel, off-front wheel, left rear wheel and off hind wheel, because this ensure that security reliability of the present utility model; The effect of left and right worm thrust spring and left and right brake spring is a given pretightning force, footrest mechanism braking can be realized turn to steering mechanism simultaneously, thus avoid turning to formerly in steering mechanism, phenomenon that brake failure appears in footrest mechanism braking when rear, because this enhancing security reliability of the present utility model.
As preferred version of the present utility model, brake silpper guide rod comprises the reeded left and right guide rod of tool, left and right movable slider and straight-arm bar, brake pedal comprises interconnective pedal and crank arm, wherein, left guide rod is connected with the push rod of left master cylinder by left brake spring, and right guide rod is connected with the push rod of right master cylinder by right brake spring; Left movable slider is positioned at left guide rod groove, and right movable slider is positioned at right guide rod groove; The left and right two ends of straight-arm bar connect left movable slider, right movable slider respectively, and one end of curved wall bar is fixed on the side of straight-arm bar.When foot pedal, pedal drives straight wall bar to move from heeling condition towards level by curved wall bar, thus promote left and right guide rod and move respectively to left and right side, and then compress left and right brake spring respectively, the push rod promoting left and right master cylinder respectively to left and right motion with this hydrodynamic force, this hydraulic coupling acts on left front, right front, left back, right back Bidirectional brake wheel cylinder respectively by oil circuit, brake while finally realizing boat tractor the near front wheel, off-front wheel, left rear wheel and off hind wheel, thus further enhancing security reliability of the present utility model.
As improvement of the present utility model, also comprise left and right proportioning valve, wherein, left proportioning valve is arranged on the oil circuit of the hydraulic cylinder connecting left back Bidirectional brake wheel cylinder and left master cylinder, and right proportioning valve is arranged on the oil circuit of the hydraulic cylinder connecting right back Bidirectional brake wheel cylinder and right master cylinder.The effect of left and right proportioning valve is, when by turn to carry out one side brake time, certain speed difference is formed between the near front wheel of boat tractor and left rear wheel, between its off-front wheel and off hind wheel, effectively avoid boat tractor in steering procedure because left rear wheel, off hind wheel are braked completely and occurred forced steering phenomenon, further enhancing security reliability of the present utility model, realize boat tractor simultaneously and turn to fast, accurately.
As further improvement of the utility model, also comprise left and right push rod back-moving spring, wherein, between the hydraulic cylinder that left push rod back-moving spring is arranged at left master cylinder and push rod, between the hydraulic cylinder that right push rod back-moving spring is arranged at right master cylinder and push rod.Left and right push rod back-moving spring not only realizes the reset of the push rod of left and right master cylinder, and forms dynamic balance with left and right worm thrust spring and left and right brake spring, thus further enhancing security reliability of the present utility model.
accompanying drawing illustrates:
Fig. 1 is the schematic diagram of the utility model for the novel hydraulic braking in a turn system of boat tractor.
Fig. 2 is that the utility model realizes differential steering schematic diagram by one side brake.
Mark in figure: left front Bidirectional brake wheel cylinder 11, right front Bidirectional brake wheel cylinder 12, left back Bidirectional brake wheel cylinder 13, right back Bidirectional brake wheel cylinder 14, left master cylinder 21, right master cylinder 22, turbine and worm mechanism 31, brake silpper guide rod 41, left guide rod 411, right guide rod 412, left movable slider 413, right movable slider 414, straight-arm bar 415, brake pedal 42, pedal 421, crank arm 422, left worm thrust spring 51, right worm thrust spring 52, left brake spring 53, right brake spring 54, left push rod back-moving spring 55, right push rod back-moving spring 56, steering wheel 61, steering spindle 62, left proportioning valve 71, right proportioning valve 72.
Embodiment
See Fig. 1, a kind of novel hydraulic braking in a turn system for boat tractor, comprise left front, right front, left back, right back Bidirectional brake wheel cylinder 11, 12, 13, 14, there is a left side for hydraulic cylinder and push rod, right master cylinder 21, 22, the middle part turbo-turbine and worm mechanism 31 of tool, there is interconnective brake silpper guide rod 41, the footrest mechanism of brake pedal 42, left, right worm thrust spring 51, 52, left, right brake spring 53, 54, left, right push rod back-moving spring 55, 56, there is interconnective steering wheel 61, the steering mechanism of steering spindle 62, and a left side, right proportioning valve 71, 72.Left front, right front, left back, right back Bidirectional brake wheel cylinder 11,12,13,14 is arranged on the near front wheel of boat tractor, off-front wheel, left rear wheel and off hind wheel respectively.Left front, left back Bidirectional brake wheel cylinder 11,13 is connected respectively by the hydraulic cylinder of oil circuit with left master cylinder 21, and right front, right back Bidirectional brake wheel cylinder 12,14 is connected respectively by the hydraulic cylinder of oil circuit with right master cylinder 22.The left end of turbine and worm mechanism 31 is connected with the push rod of left master cylinder 21 by left worm thrust spring 51, right-hand member is connected with the push rod of right master cylinder 22 by right worm thrust spring 52.Brake silpper guide rod 41 comprises the reeded left and right guide rod 411,412 of tool, left and right movable slider 413,414 and straight-arm bar 415, brake pedal 42 comprises interconnective pedal 421 and crank arm 422, wherein, left guide rod 411 is connected with the push rod of left master cylinder 21 by left brake spring 53, and right guide rod 412 is connected with the push rod of right master cylinder 22 by right brake spring 54; Left movable slider 413 is positioned at left guide rod 411 groove, and right movable slider 414 is positioned at right guide rod 412 groove; The left and right two ends of straight-arm bar 415 connect left movable slider 413, right movable slider 414 respectively, and one end of curved wall bar 422 is fixed on the side of straight-arm bar 415.Between the hydraulic cylinder that left push rod back-moving spring 55 is arranged at left master cylinder 21 and push rod, between the hydraulic cylinder that right push rod back-moving spring 56 is arranged at right master cylinder 22 and push rod.One end closure dish 61 of steering spindle 62, the other end connect the turbine in the middle part of turbine and worm mechanism 31.Left proportioning valve 71 is arranged at and connects left back Bidirectional brake wheel cylinder 13 with on the oil circuit of the hydraulic cylinder of left master cylinder 21, and right proportioning valve 72 is arranged at and connects right back Bidirectional brake wheel cylinder 14 with on the oil circuit of the hydraulic cylinder of right master cylinder 22.
Fig. 2 is that the utility model realizes differential steering schematic diagram by one side brake.Left-hand rotation steering wheel 61, drive turbine and worm mechanism 31 to left movement by steering spindle 62 and compress left worm thrust spring 51, thus the push rod promoting left master cylinder 21 to left movement with this hydrodynamic force, this hydraulic coupling acts on left front, left back Bidirectional brake wheel cylinder 11,13 respectively by oil circuit, thus realizes one side brake on the left of boat tractor; Now, under the effect of the differential mechanism of boat tractor, the rotating speed of boat tractor the near front wheel, left rear wheel lower than the rotating speed of off-front wheel, off hind wheel, thus realizes boat tractor simultaneously.Right-hand rotation steering wheel 61, drive turbine and worm mechanism 31 to move right by steering spindle 62 and compress right worm thrust spring 52, thus the push rod promoting right master cylinder 22 moves right with this hydrodynamic force, this hydraulic coupling acts on right front, right back Bidirectional brake wheel cylinder 12,14 respectively by oil circuit, thus realizes one side brake on the right side of boat tractor; Now, under the effect of the differential mechanism of boat tractor, the rotating speed of boat tractor off-front wheel, off hind wheel lower than the rotating speed of the near front wheel, left rear wheel, thus realizes boat tractor simultaneously and turns right.
When foot pedal 421, pedal 421 drives straight wall bar 415 to move from heeling condition towards level by curved wall bar 422, thus promote left, right guide rod 411, 412 respectively left, right side motion, and then compress a left side respectively, right brake spring 53, 54, promote left, right master cylinder 21, the push rod of 22 respectively left, right motion is with this hydrodynamic force, this hydraulic coupling acts on left front respectively by oil circuit, right front, left back, right back Bidirectional brake wheel cylinder 11, 12, 13, 14, finally realize boat tractor the near front wheel, off-front wheel, brake while left rear wheel and off hind wheel.The effect of left and right worm thrust spring 51,52 and left and right brake spring 53,54 is given pretightning forces, footrest mechanism braking can be realized turn to steering mechanism simultaneously, thus avoid the phenomenon when steering mechanism turns to formerly, brake failure appears in footrest mechanism braking when rear.Left and right push rod back-moving spring 55,56 not only realizes the reset of the push rod of left and right master cylinder 21,22, and forms dynamic balance with left and right worm thrust spring and left and right brake spring.The effect of left and right proportioning valve 71,72 is, when by turn to carry out one side brake time, form certain speed difference between the near front wheel of boat tractor and left rear wheel, between its off-front wheel and off hind wheel, effectively avoid boat tractor in steering procedure because left rear wheel, off hind wheel are braked completely and occurred forced steering phenomenon.
Claims (4)
1. the novel hydraulic braking in a turn system for boat tractor, it is characterized in that: comprise left front, right front, left back, right back Bidirectional brake wheel cylinder (11, 12, 13, 14), there is a left side for hydraulic cylinder and push rod, right master cylinder (21, 22), the turbo-turbine and worm mechanism (31) of middle part tool, footrest mechanism, left, right worm thrust spring (51, 52), left, right brake spring (53, 54), with there is interconnective steering wheel (61), the steering mechanism of steering spindle (62), wherein, left front, right front, left back, right back Bidirectional brake wheel cylinder (11, 12, 13, 14) the near front wheel of boat tractor is arranged on respectively, off-front wheel, on left rear wheel and off hind wheel, left front, left back Bidirectional brake wheel cylinder (11,13) is connected respectively by the hydraulic cylinder of oil circuit with left master cylinder (21), and right front, right back Bidirectional brake wheel cylinder (12,14) is connected respectively by the hydraulic cylinder of oil circuit with right master cylinder (22), the left end of turbine and worm mechanism (31) is connected with the push rod of left master cylinder (21) by left worm thrust spring (51), right-hand member is connected with the push rod of right master cylinder (22) by right worm thrust spring (52), footrest mechanism comprises the brake silpper guide rod (41) that left end is connected with the push rod of left master cylinder (21) by left brake spring (53), right-hand member is connected with the push rod of right master cylinder (22) by right brake spring (54), with stressed after the left and right end of brake silpper guide rod (41) can be driven to move respectively to left and right side brake pedal (42), brake silpper guide rod (41) and brake pedal (42) are interconnected, one end closure dish (61) of steering spindle (62), the other end connect the turbine at turbine and worm mechanism (31) middle part.
2. the novel hydraulic braking in a turn system for boat tractor according to claim 1, it is characterized in that: brake silpper guide rod (41) comprises the reeded left side of tool, right guide rod (411, 412), left, right movable slider (413, 414) and straight-arm bar (415), brake pedal (42) comprises interconnective pedal (421) and crank arm (422), wherein, left guide rod (411) is connected by the push rod of left brake spring (53) with left master cylinder (21), right guide rod (412) is connected by the push rod of right brake spring (54) with right master cylinder (22), left movable slider (413) is positioned at left guide rod (411) groove, and right movable slider (414) is positioned at right guide rod (412) groove, the left and right two ends of straight-arm bar (415) connect left movable slider (413), right movable slider (414) respectively, and one end of curved wall bar (422) is fixed on the side of straight-arm bar (415).
3. the novel hydraulic braking in a turn system for boat tractor according to claim 1 and 2, it is characterized in that: also comprise left and right proportioning valve (71,72), wherein, left proportioning valve (71) is arranged at and connects left back Bidirectional brake wheel cylinder (13) with on the oil circuit of the hydraulic cylinder of left master cylinder (21), and right proportioning valve (72) is arranged at and connects right back Bidirectional brake wheel cylinder (14) with on the oil circuit of the hydraulic cylinder of right master cylinder (22).
4. the novel hydraulic braking in a turn system for boat tractor according to claim 3, it is characterized in that: also comprise left and right push rod back-moving spring (55,56), wherein, between the hydraulic cylinder that left push rod back-moving spring (55) is arranged at left master cylinder (21) and push rod, between the hydraulic cylinder that right push rod back-moving spring (56) is arranged at right master cylinder (22) and push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420822033.XU CN204362538U (en) | 2014-12-23 | 2014-12-23 | A kind of novel hydraulic braking in a turn system for boat tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420822033.XU CN204362538U (en) | 2014-12-23 | 2014-12-23 | A kind of novel hydraulic braking in a turn system for boat tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204362538U true CN204362538U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420822033.XU Expired - Fee Related CN204362538U (en) | 2014-12-23 | 2014-12-23 | A kind of novel hydraulic braking in a turn system for boat tractor |
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| Country | Link |
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| CN (1) | CN204362538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985994A (en) * | 2017-04-28 | 2017-07-28 | 江苏科技大学 | A kind of air force ship brake apparatus |
| CN108353560A (en) * | 2017-03-14 | 2018-08-03 | 黄河科技学院 | A kind of walking machine mono-lever control device |
-
2014
- 2014-12-23 CN CN201420822033.XU patent/CN204362538U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108353560A (en) * | 2017-03-14 | 2018-08-03 | 黄河科技学院 | A kind of walking machine mono-lever control device |
| CN106985994A (en) * | 2017-04-28 | 2017-07-28 | 江苏科技大学 | A kind of air force ship brake apparatus |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20191223 |