CN219994313U - HST stepless speed changer output control mechanism of rice transplanter - Google Patents
HST stepless speed changer output control mechanism of rice transplanter Download PDFInfo
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- CN219994313U CN219994313U CN202320840141.9U CN202320840141U CN219994313U CN 219994313 U CN219994313 U CN 219994313U CN 202320840141 U CN202320840141 U CN 202320840141U CN 219994313 U CN219994313 U CN 219994313U
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 24
- 235000009566 rice Nutrition 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 240000007594 Oryza sativa Species 0.000 title abstract 2
- 238000005096 rolling process Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 39
- 241000209094 Oryza Species 0.000 claims description 22
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Transplanting Machines (AREA)
Abstract
The utility model discloses an output control mechanism of an HST stepless speed changer of a rice transplanter, which comprises an HST zero position control device arranged on the HST stepless speed changer, a seat plate is fixed on the HST stepless speed changer, the middle part of a shifting fork is connected with a control shaft of the HST stepless speed changer and is rotatably arranged on the seat plate, one end of a push-pull flexible shaft is hinged with the shifting fork, one end of a limiting piece is rotatably arranged with the other end of the seat plate through an eccentric shaft, a zero return spring is arranged between the other end of the limiting piece and the seat plate, a rolling piece is arranged on the back surface of the limiting piece through a pin shaft, the rolling piece is enabled to move against a first convex arc-shaped track part, a zero recess part and a second convex arc-shaped track part of the shifting fork by the tensioning force of the zero return spring, and when the rolling piece rolls into the zero recess part of the shifting fork, the HST stepless speed changer is positioned at a zero position. When the zero position and the nonzero position are adopted, the tension force of the zero return spring is obviously changed, the position sense is very strong, and the error of the control of an operator is avoided.
Description
Technical Field
The utility model relates to the technical field of transplanting equipment, in particular to an output control mechanism of an HST (high speed transmission) stepless speed changer of a transplanting machine.
Background
The rice transplanter is an agricultural machine for transplanting rice seedlings into a rice field. Most of the existing four-wheel steering rice transplanting machines are connected with a combined gearbox through an HST (high speed transmission) stepless speed changer to meet the functional requirements of the rice transplanting machines.
The output control mechanism of the HST continuously variable transmission of the existing rice transplanter is characterized in that two stay wires are connected with a rocker arm on a control shaft of the HST continuously variable transmission, the corresponding parts are pulled by the two stay wires to realize clockwise or anticlockwise rotation of an HST output shaft, namely, one stay wire is pulled to realize clockwise rotation of the HST output shaft, the other stay wire is pulled to realize anticlockwise rotation of the HST output shaft, the zero position sense of the HST continuously variable transmission is not obvious, (the zero position of the HST continuously variable transmission is the position of the HST continuously variable transmission for stopping power output), the operator is easy to cause error in control, and the structures of the corresponding parts pulled front and back by the two stay wires are complex; the installation error is large, and is also an important cause of misoperation.
Therefore, the output control mechanism of the HST stepless speed changer of the existing rice transplanter needs to be improved, so that the zero position sense of the HST stepless speed changer is obvious, and the operation is simple and easy.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the output control mechanism of the HST stepless speed changer of the rice transplanter, so that the zero position sense of the HST stepless speed changer is obvious, and the control is simple and easy to implement.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a HST continuously variable transmission output control mechanism of transplanter, includes HST zero position controlling means, HST zero position controlling means sets up on HST continuously variable transmission, and HST continuously variable transmission is equipped with control shaft, its characterized in that:
the HST zero position control device comprises a push-pull flexible shaft, a seat plate, a shifting fork and a limiting piece, wherein the seat plate is fixed on the HST continuously variable transmission, a flexible shaft sleeve fixed with one end of the seat plate is sleeved outside the push-pull flexible shaft, the push-pull flexible shaft can slide along the flexible shaft sleeve, the middle part of the shifting fork is connected with the control shaft and is rotatably arranged on the seat plate, one end of the push-pull flexible shaft is hinged with the shifting fork, the other end of the shifting fork is sequentially provided with a pushing convex part, a first convex arc-shaped track part, a zero position concave part and a second convex arc-shaped track part, one end of the limiting piece is rotatably arranged with the other end of the seat plate through an eccentric shaft, a zero return spring is arranged between the other end of the limiting piece and the seat plate, the back surface of the limiting piece is provided with a rolling piece through a pin shaft,
when in a zero state, the rolling piece is positioned in the zero concave part of the shifting fork, and the pushing convex part abuts against one end of the limiting piece;
when the push-pull flexible shaft is in a non-zero state, if the push-pull flexible shaft is pushed, the shifting fork rotates anticlockwise around the middle part of the push-pull flexible shaft, the rolling piece rolls from the zero-position concave part to the second convex arc-shaped track part, and if the push-pull flexible shaft is pulled, the shifting fork rotates clockwise around the middle part of the push-pull flexible shaft, and the rolling piece rolls from the zero-position concave part to the first convex arc-shaped track part.
Preferably: the shifting fork is provided with a hinge shaft hole at one end hinged with the push-pull flexible shaft, the middle part of the shifting fork is provided with a shaft sleeve, and the shaft sleeve penetrates through the seat plate and is connected with the control shaft.
Preferably: the pushing convex part is arranged to be a convex block, the first convex arc-shaped track part is arranged to be a first convex arc surface protruding outwards, the second convex arc-shaped track part is arranged to be a second convex arc surface protruding outwards, the zero concave part is arranged to be a zero concave arc surface recessed inwards, and the zero concave arc surface is located between the first convex arc surface and the second convex arc surface.
Preferably: the seat board comprises a body board part and an extension arm part which are integrally arranged, a baffle is arranged at the top end of the extension arm part, the flexible shaft sleeve is fixed at the baffle through a joint, an eccentric shaft sleeve for installing the eccentric shaft is fixed at the body board part, the eccentric shaft sleeve protrudes out of the front face of the seat board, and a round hole for the shaft sleeve to pass through is formed in the body board part.
Preferably: the baffle is provided with a U-shaped opening which is convenient to disassemble and assemble.
Preferably: the seat board is fixed on the HST continuously variable transmission through bolts.
Preferably: the rolling element adopts a bearing.
After the technical scheme is adopted, the utility model has the beneficial effects that:
according to the output control mechanism of the HST continuously variable transmission of the rice transplanter, as the seat plate is fixed on the HST continuously variable transmission, one end of the push-pull flexible shaft is connected with the shifting fork, the other end of the push-pull flexible shaft is connected with the control handle, the shifting fork is connected with the control shaft of the HST continuously variable transmission, if the push-pull flexible shaft is pushed, the shifting fork rotates anticlockwise around the middle part of the push-pull flexible shaft, the limiting piece is pulled by the zero return spring to rotate around the eccentric shaft, the limiting piece drives the rolling piece to roll from the zero concave part to the second convex cambered surface-shaped track part, and if the push-pull flexible shaft is pulled, the shifting fork rotates clockwise around the middle part of the push-pull flexible shaft, the limiting piece is pulled by the zero return spring to rotate around the eccentric shaft, and the limiting piece drives the rolling piece to roll from the zero concave part to the first convex cambered surface-shaped track part. Namely, the push-pull flexible shaft is controlled to enable the shifting fork to rotate clockwise and anticlockwise so as to drive the control shaft of the HST continuously variable transmission to rotate forward or reversely, so that the action of the HST continuously variable transmission can be realized.
The tensioning force of the zero return spring enables the rolling element to move against the first convex cambered surface, the zero concave cambered surface and the second convex cambered surface of the shifting fork, and when the rolling element rolls into the zero concave part of the shifting fork, the HST stepless speed changer is located at the zero position. Because the magnitude of the tension force of the zero-point return spring at each position changes obviously when the rolling element is positioned at the first convex cambered surface, the zero-point concave cambered surface and the second convex cambered surface, the position sense is very strong. Therefore, the zero position sense of the HST stepless speed changer is obvious, error of control by operators is avoided, and the operation is simple and easy.
Drawings
FIG. 1 is a schematic perspective view of an output control mechanism of an HST continuously variable transmission of a rice transplanter according to the present utility model;
FIG. 2 is a schematic view of another view of the output control mechanism of the HST continuously variable transmission of the rice transplanter of the present utility model;
FIG. 3 is a schematic diagram of the HST zero control apparatus of FIG. 1;
FIG. 4 is a rear view of FIG. 3;
FIG. 5 is a schematic view of the control fork of FIG. 3;
1. HST zero control device; 101. push-pull flexible shaft; 102. a seat plate; 1021. a main body plate portion; 1022. an elongated arm portion; 1023. a baffle; 1024. an eccentric shaft sleeve; 103. a shifting fork; 1031. pushing the convex part; 1032. a shaft sleeve; A. a first convex arcuate track portion; B. a zero depression; C. a second convex arcuate track portion; 104. a limiting piece; 105. a flexible shaft jacket; 106. a zero return spring; 107. an eccentric shaft; 108. a rolling member; 2. HST continuously variable transmission; 201. and a control shaft.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting of the application. The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, for convenience of description, only a portion related to the related application is shown in the drawings. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.
The terms "first" and "second" are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
The utility model is described in further detail below with reference to the drawings and examples.
Some embodiments of the utility model disclose an output control mechanism of an HST stepless speed changer of a rice transplanter, as shown in fig. 1 and 2, the output control mechanism of the HST stepless speed changer of the rice transplanter comprises an HST zero position control device 1, the HST zero position control device 1 is arranged on the HST stepless speed changer 2, the HST stepless speed changer 2 is provided with a control shaft 201, the HST zero position control device 1 comprises a push-pull flexible shaft 101, a seat plate 102, a shifting fork 103 and a limiting piece 104, the seat plate 102 is fixed on the HST stepless speed changer 2, the push-pull flexible shaft 101 is sleeved with a flexible shaft sleeve 105 fixed with one end of the seat plate 102, the push-pull flexible shaft 101 can slide along the flexible shaft sleeve 105, the middle part of the shifting fork 103 is connected with the control shaft 201 and is rotatably arranged on the seat plate 102, one end of the push-pull flexible shaft 101 is hinged with the shifting fork 103, the other end of the shifting fork 103 is sequentially provided with a push convex part 1031, a first convex arc track part A, a zero position concave part B and a second convex arc track part C, one end of the limiting piece 104 is rotatably arranged with the other end of the seat plate 102 through an eccentric shaft 107, a zero return spring 106 is arranged between the other end of the limiting piece 104 and the seat plate 102, a rolling piece 104 and a back surface of the limiting piece 104 is installed through a pin 108,
in the zero state, the rolling element 108 is positioned at the zero concave part B of the shifting fork 103 to push the convex part 1031 to abut against one end of the limiting element 104;
as shown in fig. 3 and 4, in the non-zero state, if the push-pull flexible shaft 101 is pushed, the shift fork 103 rotates counterclockwise around the middle portion thereof, the rolling element 108 rolls from the zero-position concave portion B to the second convex arc-shaped track portion C, and if the push-pull flexible shaft 101 is pulled, the shift fork 103 rotates clockwise around the middle portion thereof, and the rolling element 108 rolls from the zero-position concave portion B to the first convex arc-shaped track portion a.
In some embodiments of the present utility model, an end of the fork 103 hinged to the push-pull flexible shaft 101 is provided with a hinge shaft hole, a shaft sleeve 1032 is provided in the middle of the fork 103, and the shaft sleeve 1032 passes through the seat plate 102 and is connected to the control shaft 201.
In some embodiments of the present utility model, the pushing protrusion 1031 is configured as a bump, the first convex arc-shaped track portion a is configured as a first convex arc surface protruding outward, the second convex arc-shaped track portion C is configured as a second convex arc surface protruding outward, the zero-position recess B is configured as a zero-position concave arc surface recessed inward, and the zero-position concave arc surface is located between the first convex arc surface and the second convex arc surface.
In some embodiments of the present utility model, the seat plate 102 includes a body plate 1021 and an extension arm 1022 integrally provided, a baffle 1023 is provided at a top end of the extension arm 1022, the flexible shaft housing 105 is fixed at the baffle 1023 by a joint, the body plate 1021 is fixed with an eccentric shaft 1024 for mounting the eccentric shaft 107, the eccentric shaft 1024 protrudes out of a front of the seat plate 102, and the body plate 1021 is provided with a circular hole for passing the shaft 1032.
In some embodiments of the present utility model, the baffle 1023 is provided with a U-shaped opening for easy disassembly. During installation, the flexible shaft jacket 105 is clamped on the baffle 1023 through the U-shaped opening, so that the installation is convenient, and similarly, if the push-pull flexible shaft 101 or the flexible shaft jacket 105 is damaged, the replacement is needed, and the disassembly is also convenient.
In some embodiments of the present utility model, the seat plate 102 is bolted to the HST continuously variable transmission 2.
In some embodiments of the utility model, the rolling elements 108 employ bearings.
Because the seat plate 102 is fixed on the HST continuously variable transmission 2, one end of the push-pull flexible shaft 101 passes through the U-shaped opening of the seat plate 102 and is connected with the shifting fork 103, the other end of the push-pull flexible shaft 101 is connected with the control handle (not shown in the figure), the shifting fork 103 is connected with the control shaft 201 of the HST continuously variable transmission 2, if the push-pull flexible shaft 101 is pushed, the shifting fork 103 rotates anticlockwise around the middle part of the shifting fork, the limiting piece 104 is pulled by the zero return spring 106 to rotate around the eccentric shaft, the limiting piece 104 drives the rolling piece 108 to roll from the zero concave part B to the second convex cambered surface track part C, if the push-pull flexible shaft 101 is pulled, the shifting fork 103 rotates clockwise around the middle part of the shifting fork, the limiting piece 104 is pulled by the zero return spring 106 to rotate around the eccentric shaft, and the limiting piece 104 drives the rolling piece 108 to roll from the zero concave part B to the first convex cambered surface track part A. Namely, the push-pull flexible shaft is controlled to enable the shifting fork to rotate clockwise and anticlockwise so as to drive the control shaft of the HST continuously variable transmission to rotate forward or reversely, so that the action of the HST continuously variable transmission can be realized.
The tensioning force of the zero return spring 106 causes the rolling elements (bearings) to move against the first convex cambered surface, the zero concave cambered surface and the second convex cambered surface of the shifting fork 103, and when the rolling elements roll into the zero concave part B of the shifting fork 103, the HST continuously variable transmission 2 is positioned at the zero position. Because the magnitude of the tension force of the zero-point return spring 106 spring at each position changes obviously when the rolling element (bearing) is positioned at the first convex cambered surface, the zero-point concave cambered surface and the second convex cambered surface, the position sense is very strong. Therefore, the zero position sense of the HST stepless speed changer is obvious, error of control by operators is avoided, and the operation is simple and easy.
The above-mentioned output control mechanism of the HST continuously variable transmission of the rice transplanter is only a preferred embodiment of the present utility model, and other schemes including the output control mechanism of the HST continuously variable transmission of the rice transplanter are also within the scope of the present utility model.
Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a HST continuously variable transmission output control mechanism of transplanter, includes HST zero position controlling means, HST zero position controlling means sets up on HST continuously variable transmission, and HST continuously variable transmission is equipped with control shaft, its characterized in that:
the HST zero position control device comprises a push-pull flexible shaft, a seat plate, a shifting fork and a limiting piece, wherein the seat plate is fixed on the HST continuously variable transmission, a flexible shaft sleeve fixed with one end of the seat plate is sleeved outside the push-pull flexible shaft, the push-pull flexible shaft can slide along the flexible shaft sleeve, the middle part of the shifting fork is connected with the control shaft and is rotatably arranged on the seat plate, one end of the push-pull flexible shaft is hinged with the shifting fork, the other end of the shifting fork is sequentially provided with a pushing convex part, a first convex arc-shaped track part, a zero position concave part and a second convex arc-shaped track part, one end of the limiting piece is rotatably arranged with the other end of the seat plate through an eccentric shaft, a zero return spring is arranged between the other end of the limiting piece and the seat plate, the back surface of the limiting piece is provided with a rolling piece through a pin shaft,
when in a zero state, the rolling piece is positioned in the zero concave part of the shifting fork, and the pushing convex part abuts against one end of the limiting piece;
when the push-pull flexible shaft is in a non-zero state, if the push-pull flexible shaft is pushed, the shifting fork rotates anticlockwise around the middle part of the push-pull flexible shaft, the rolling piece rolls from the zero-position concave part to the second convex arc-shaped track part, and if the push-pull flexible shaft is pulled, the shifting fork rotates clockwise around the middle part of the push-pull flexible shaft, and the rolling piece rolls from the zero-position concave part to the first convex arc-shaped track part.
2. The HST continuously variable transmission output control mechanism of a rice transplanter according to claim 1, wherein: the shifting fork is provided with a hinge shaft hole at one end hinged with the push-pull flexible shaft, the middle part of the shifting fork is provided with a shaft sleeve, and the shaft sleeve penetrates through the seat plate and is connected with the control shaft.
3. The HST continuously variable transmission output control mechanism of a rice transplanter according to claim 2, wherein: the pushing convex part is arranged to be a convex block, the first convex arc-shaped track part is arranged to be a first convex arc surface protruding outwards, the second convex arc-shaped track part is arranged to be a second convex arc surface protruding outwards, the zero concave part is arranged to be a zero concave arc surface recessed inwards, and the zero concave arc surface is located between the first convex arc surface and the second convex arc surface.
4. The HST continuously variable transmission output control mechanism of a rice transplanter according to claim 2, wherein: the seat board comprises a body board part and an extension arm part which are integrally arranged, a baffle is arranged at the top end of the extension arm part, the flexible shaft sleeve is fixed at the baffle through a joint, an eccentric shaft sleeve for installing the eccentric shaft is fixed at the body board part, the eccentric shaft sleeve protrudes out of the front face of the seat board, and a round hole for the shaft sleeve to pass through is formed in the body board part.
5. The HST continuously variable transmission output control mechanism of a rice transplanter according to claim 4, wherein: the baffle is provided with a U-shaped opening which is convenient to disassemble and assemble.
6. The HST continuously variable transmission output control mechanism of a rice transplanter according to claim 1, wherein: the seat board is fixed on the HST continuously variable transmission through bolts.
7. The HST continuously variable transmission output control mechanism of a rice transplanter according to claim 1, wherein: the rolling element adopts a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320840141.9U CN219994313U (en) | 2023-04-11 | 2023-04-11 | HST stepless speed changer output control mechanism of rice transplanter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320840141.9U CN219994313U (en) | 2023-04-11 | 2023-04-11 | HST stepless speed changer output control mechanism of rice transplanter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219994313U true CN219994313U (en) | 2023-11-10 |
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ID=88615317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320840141.9U Active CN219994313U (en) | 2023-04-11 | 2023-04-11 | HST stepless speed changer output control mechanism of rice transplanter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219994313U (en) |
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2023
- 2023-04-11 CN CN202320840141.9U patent/CN219994313U/en active Active
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