CN212055812U - Neutral gear detection device of tractor - Google Patents
Neutral gear detection device of tractor Download PDFInfo
- Publication number
- CN212055812U CN212055812U CN202020361437.9U CN202020361437U CN212055812U CN 212055812 U CN212055812 U CN 212055812U CN 202020361437 U CN202020361437 U CN 202020361437U CN 212055812 U CN212055812 U CN 212055812U
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- gear
- neutral
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- rod
- tractor
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Abstract
A neutral gear detection device of a tractor comprises a neutral switch, a movable body, neutral push rods, interlocking pins and two gear slide rods, wherein the two gear slide rods are respectively arranged in slide rod holes of a gearbox, each gear slide rod corresponds to a plurality of different gears, a neutral groove with a cambered surface in cross section is arranged on each gear slide rod, and a pin hole which can be communicated with the neutral groove of each gear slide rod is arranged between the two gear slide rods so as to install the interlocking pins; a neutral gear central hole communicated with a neutral gear groove of the neutral gear switch is also formed in the gear sliding rod close to the neutral gear switch, and a neutral gear push rod is movably arranged in the neutral gear central hole; the movable body is sealed in the other pin hole of the gearbox by the neutral switch, one end of the movable body is provided with a cambered surface so as to be matched with a neutral groove on a gear sliding rod close to the neutral switch, and the other end of the movable body faces the neutral switch; the neutral gear switch is a normally closed switch and is connected with the electric signal of the whole vehicle. The device solves the problem that a neutral gear detection device is additionally arranged on a multi-gear and multi-sliding-rod gearbox of the tractor.
Description
Technical Field
The utility model belongs to the tractor field relates to a tractor neutral gear keeps off position detection device.
Background
Tractor neutral gear keeps off position detection device is used for judging whether the tractor is in the neutral gear state, and when the tractor was in the neutral gear state, neutral gear kept off position detection equipment output neutral gear signal to guarantee engine neutral gear starts, reaches better operating condition. Neutral gear detection device is used for the car more to mostly all arrange shift on the head, but the structure is complicated, and the installation is inconvenient, and the commonality is not good. Due to the characteristics of a multi-gear and multi-sliding rod gearbox of a tractor, the neutral gear detection device is difficult to install, so that the existing neutral gear detection device is less used on the tractor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tractor neutral gear keeps off position detection device solves the tractor and keeps off the position more, the many slide bar gearboxes install neutral gear position detection device's a difficult problem additional.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a neutral gear detection device of a tractor comprises a neutral switch, a movable body, neutral push rods, interlocking pins and two gear slide rods, wherein the two gear slide rods are respectively arranged in slide rod holes of a gearbox, each gear slide rod corresponds to a plurality of different gears, each gear slide rod is provided with a neutral groove with a cambered surface in cross section, a pin hole capable of communicating the neutral grooves of the two gear slide rods is formed between the two gear slide rods, and the interlocking pins are arranged in the pin holes; a neutral gear central hole communicated with a neutral gear groove of the neutral gear switch is also formed in the gear sliding rod close to the neutral gear switch, and the neutral gear push rod is movably arranged in the neutral gear central hole; the movable body is sealed in the other pin hole of the gearbox by the neutral switch, one end of the movable body is provided with an arc surface so as to be matched with a neutral groove on a gear sliding rod close to the neutral switch, and the other end of the movable body faces the neutral switch; the neutral position switch is a normally closed switch and is connected with the electric signal of the whole vehicle; when the gear slide rod moves axially to hang up a gear, the movable body is directly jacked up after leaving the neutral groove or is indirectly jacked up through the force transmission of the interlocking pin and the neutral push rod, and the neutral switch is triggered to identify non-neutral gears.
The movable body consists of two steel balls.
The neutral gear groove is an annular groove arranged around the circumference of the gear sliding rod.
Or the neutral gear grooves are ball-and-socket-shaped grooves arranged on the side surfaces of the gear sliding rods and are oppositely arranged into two.
The tail end of the gear sliding rod close to the neutral switch is also provided with a threaded hole along the axial direction, and the threaded hole is vertical to the neutral center hole and penetrates through the neutral center hole; the middle part of the neutral gear push rod is provided with a through hole for the bolt to pass through, and the diameter of the through hole is larger than that of the bolt, so that the neutral gear push rod can move up and down after being sleeved on the bolt.
The two gear sliding rods are respectively a first gear sliding rod and a second gear sliding rod, the first gear sliding rod corresponds to the I/II gear of the gearbox, and the second gear sliding rod is close to the neutral gear switch and corresponds to the III/IV gear of the gearbox.
Compared with the prior art, the utility model discloses can satisfy the operation requirement that keeps off the tractor safety start of position, many slide bar gearboxes more, and simple structure, preparation low cost uses safe and reliable, has realized the detection to the tractor keeps off the position neutral gear more, conceives the novelty, and the commonality is better.
Drawings
FIG. 1 is a schematic structural view of a neutral gear detection device of a tractor;
FIG. 2 is an enlarged partial view of the first gear slide bar;
FIG. 3 is an enlarged partial view of the second stop slide bar;
the labels in the figure are: 1. the device comprises a first gear slide bar, a second gear slide bar, a third gear slide bar, a fourth gear slide bar, a fifth gear slide bar, a sixth gear slide bar.
Detailed Description
The following detailed description of the present invention is provided with reference to the accompanying drawings and examples, but not to limit the present invention in any way, and the following examples are provided with reference to the accompanying drawings.
As shown in fig. 1 to 3, the neutral gear detection device for the tractor mainly comprises a neutral switch 4, a steel ball 5, a neutral push rod 6, an interlocking pin 8, a bolt 7, a first gear slide bar 1 and a second gear slide bar 2, wherein the first gear slide bar 1 and the second gear slide bar 2 are respectively installed in slide bar holes of a gearbox 3, the first gear slide bar 1 corresponds to an I/II gear, and the second gear slide bar 2 corresponds to an III/IV gear.
The first gear slide bar 1 is provided with a neutral gear groove a of a ball socket structure and can be set into two neutral gear grooves a which correspond up and down, the second gear slide bar 2 is provided with a neutral gear groove c and a neutral gear center hole b of the ball socket structure, the neutral gear grooves c are set into two corresponding neutral gear center holes b, the neutral gear center holes b are communicated, a threaded hole d is formed in the tail end of the second gear slide bar 2, the threaded hole is perpendicular to the neutral gear center hole, and the neutral gear center hole is communicated.
The neutral gear groove a can also be an annular groove arranged around the circumference of the first gear slide bar 1, and similarly, the neutral gear groove c can also be an annular groove arranged around the circumference of the second gear slide bar 2.
The neutral gear push rod 6 is arranged in the neutral gear center hole b in a vertically movable mode, in order to avoid the neutral gear push rod 6 from being separated from the neutral gear center hole b, a through hole is formed in the middle of the neutral gear push rod 6, a bolt 7 is screwed into a threaded hole in the tail end of the second stop slide rod 2 and is inserted into the through hole in the middle of the neutral gear push rod 6, and in order not to hinder the vertical movement of the neutral gear push rod 6, the diameter of the through hole is larger than the diameter of the bolt 7.
The interlocking pin 8 is installed in a pin hole of the gearbox 3 and located between the first gear slide bar 1 and the second gear slide bar 2, the pin hole of the gearbox 3 corresponds to the neutral gear grooves (a, c) on the first gear slide bar 1 and the second gear slide bar 2, and therefore two ends of the interlocking pin 8 can respectively enter the neutral gear grooves (a, c) on the first gear slide bar 1 and the second gear slide bar 2.
The gearbox 3 is also internally provided with pin holes for mounting the steel balls 5, the pin holes for mounting the steel balls 5 and the pin holes for mounting the interlocking pins 8 are respectively positioned at two sides of the second gear slide bar 2, the two steel balls 5 are arranged, the neutral gear switch 4 seals the steel balls 5 in the pin holes, and when the steel balls 5 are jacked upwards under the action of external force, the neutral gear switch 4 can be triggered to identify non-neutral gears.
And the neutral switch 4 is a normally closed switch and is connected with an electric signal of the whole vehicle.
The number of the steel balls 5 can be set according to actual conditions, or other rod-shaped or bar-shaped movable bodies besides the steel balls, such as cylindrical pins, can be adopted as long as the end part of the movable body is an arc surface or a spherical surface which can be matched with the neutral gear groove c, and the neutral gear switch 4 can be triggered up and down in the pin hole.
When the second gear slide bar 2 slides leftwards/rightwards, and a working gear is hung, the steel ball 5 slides out of the neutral groove c on the second gear slide bar 2, moves upwards, and touches the neutral switch 4, so that a non-neutral position is identified.
When the first gear slide bar 1 slides leftwards/rightwards, and a working gear is hung, the interlocking pin 8 slides out of the neutral groove a on the first gear slide bar 1, moves upwards, pushes the neutral push rod 6 and the steel ball 5 to move upwards, and further touches the neutral switch 4, so that a non-neutral position is identified.
Only when the first gear slide bar 1 and the second gear slide bar 2 are both in the middle neutral position, the interlocking pin 8 returns to the neutral groove a of the first gear slide bar 1, the steel ball 5 returns to the neutral groove c of the second gear slide bar 2, and the neutral switch 4 returns to the original position, so that the neutral position is identified.
Finally, it is to be noted that the purpose of the disclosed invention is to protect it from all changes and modifications that come within the spirit and scope of the invention.
The part of the utility model not detailed is prior art.
Claims (6)
1. The utility model provides a tractor neutral gear keeps off position detection device which characterized in that: the automatic transmission gear comprises a neutral switch (4), a movable body, a neutral push rod (6), interlocking pins (8) and two gear slide rods, wherein the two gear slide rods are respectively arranged in slide rod holes of a transmission case (3), each gear slide rod corresponds to a plurality of different gears, each gear slide rod is provided with a neutral groove with a cambered surface in cross section, the positions of the neutral grooves correspond to the positions of pin holes in the transmission case (3), one pin hole is positioned between the two gear slide rods, and the interlocking pins (8) are arranged in the pin holes; a neutral gear central hole communicated with the neutral gear groove is further formed in the gear sliding rod close to the neutral gear switch (4), and the neutral gear push rod (6) is movably arranged in the neutral gear central hole; the movable body is sealed in the other pin hole of the gearbox (3) by the neutral switch (4), one end of the movable body is provided with an arc surface so as to be matched with a neutral groove on a gear sliding rod close to the neutral switch (4), and the other end of the movable body faces the neutral switch (4); the neutral position switch is a normally closed switch and is connected with the electric signal of the whole vehicle; when the gear slide rod moves axially to hang up a gear, the movable body is directly jacked up after leaving the neutral groove or is indirectly jacked up through the force transmission of the interlocking pin (8) and the neutral push rod (6), and the neutral switch (4) is triggered to identify a non-neutral gear.
2. The tractor neutral gear detection device according to claim 1, characterized in that: the movable body consists of two steel balls (5).
3. The tractor neutral gear detection device according to claim 1, characterized in that: the neutral gear groove is an annular groove arranged around the circumference of the gear sliding rod.
4. The tractor neutral gear detection device according to claim 1, characterized in that: the neutral gear grooves are ball socket-shaped grooves formed in the side faces of the gear sliding rods and are oppositely arranged into two.
5. The tractor neutral gear detection device according to claim 1, characterized in that: a threaded hole is further axially formed in the tail end of the gear sliding rod close to the neutral switch (4), is perpendicular to the neutral central hole and penetrates through the neutral central hole; the middle part of the neutral gear push rod is provided with a through hole for the bolt (7) to pass through, and the diameter of the through hole is larger than that of the bolt, so that the neutral gear push rod (6) can move up and down after being sleeved on the bolt (7).
6. The tractor neutral gear detection device according to claim 1, characterized in that: the two gear sliding rods are respectively a first gear sliding rod (1) and a second gear sliding rod (2), the first gear sliding rod (1) corresponds to I/II gear of the gearbox, and the second gear sliding rod (2) is close to the neutral gear switch (4) and corresponds to III/IV gear of the gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361437.9U CN212055812U (en) | 2020-03-20 | 2020-03-20 | Neutral gear detection device of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020361437.9U CN212055812U (en) | 2020-03-20 | 2020-03-20 | Neutral gear detection device of tractor |
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| Publication Number | Publication Date |
|---|---|
| CN212055812U true CN212055812U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020361437.9U Active CN212055812U (en) | 2020-03-20 | 2020-03-20 | Neutral gear detection device of tractor |
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| CN (1) | CN212055812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173929A (en) * | 2020-03-20 | 2020-05-19 | 第一拖拉机股份有限公司 | Neutral gear detection device of tractor |
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2020
- 2020-03-20 CN CN202020361437.9U patent/CN212055812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173929A (en) * | 2020-03-20 | 2020-05-19 | 第一拖拉机股份有限公司 | Neutral gear detection device of tractor |
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