CN115234632A - Variable speed gearbox drive mechanism - Google Patents
Variable speed gearbox drive mechanism Download PDFInfo
- Publication number
- CN115234632A CN115234632A CN202211016988.1A CN202211016988A CN115234632A CN 115234632 A CN115234632 A CN 115234632A CN 202211016988 A CN202211016988 A CN 202211016988A CN 115234632 A CN115234632 A CN 115234632A
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- gear
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 abstract 1
- 244000309464 bull Species 0.000 description 7
- 238000005491 wire drawing Methods 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a variable-speed gearbox transmission mechanism, which comprises a box body, wherein the box body is internally provided with: the high-speed gear set and the low-speed gear set are arranged between the first transmission shaft and the second transmission shaft; and be provided with the structure of shifting so that high-speed gear train or low-speed gear train are as transmission structure, realize two grades of work of high-speed and low-speed of line trunk to the required tensile wire rod of adaptation improves efficiency.
Description
Technical Field
The invention belongs to the technical field of transmission mechanisms for wire stretching machines, and particularly relates to a variable-speed gear box transmission mechanism for a horizontal wire stretching machine.
Background
The general technological principle of metal wire drawing process is mainly characterized by that a pre-drawing section of wire is drawn and output by eye film mechanism of wire drawing machine, and is held by holding device on the wire body, the wire body is rotated around the shaft so as to make the wire material be drawn and continuously wound on the wire body, and the wire-drawing operation can be completed after the wire material is wound to preset number of turns and taken off from the wire body.
If the chinese patent application No. 2017206828448 discloses a device for feeding a wire rod into a wire barrel of a wire drawing machine, the device is characterized in that a tilting seat having a wire eye module unit and a wire straightening wheel unit is arranged at the adjacent side of the wire barrel, and is driven by a lower oil cylinder to tilt in the vertical direction, the wire eye module unit is vertically arranged on the tilting seat and can be driven by an upper oil cylinder to tilt in the horizontal direction, two pairs of corresponding gradually deep wire grooves are obliquely arranged at the outer side of the wire barrel, and a clamping unit is not arranged in the wire barrel at the deep end of the wire groove, so that the tilting seat swings to align the wire rod with the wire grooves and the clamping unit, the wire rod is clamped in the clamping unit on the wire barrel by the swinging of the wire eye module, and finally the tilting seat and the wire eye module gradually return to the original position by the rotating and pulling of the wire rod, the wire rod can be continuously screwed and tightly, the wire rod can be clamped in the clamping unit, and the clamping operation of the wire rod can be easily controlled by a machine, and the danger of the wire rod clamping operation can be avoided.
The wire body is used as a winding part for pulling the wire, the wire body is connected with a driving mechanism, the specific driving mechanism comprises a motor and a speed reducer, the motor and the speed reducer are matched to enable the wire body to provide large torque to stretch the wire, but the current wire bodies are all constant in speed, the maximum torque for stretching the large wire needs to be provided, the current wire bodies are in a low-speed state, the adjustment cannot be carried out according to the size of the stretched wire, the low speed is kept even when the small wire is stretched, and the efficiency is low.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a speed change gear box additionally arranged on a wire stretching machine, which can select a high-speed gear or a low-speed gear according to the requirement so as to adapt to the required stretched wire and improve the efficiency.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a gear box drive mechanism of variable-speed, includes the box, is provided with in the box:
the input section comprises a first transmission shaft, a high-speed driving gear and a low-speed driving gear are arranged on the first transmission shaft, and the high-speed driving gear and the low-speed driving gear are fixed with the first transmission shaft;
the speed change section comprises a second transmission shaft, a high-speed driven gear and a low-speed driven gear are arranged on the second transmission shaft, the high-speed driven gear and the low-speed driven gear are rotationally connected with the second transmission shaft through bearings, the high-speed driven gear is meshed with a high-speed driving gear, and the low-speed driven gear is meshed with a low-speed driving gear; the transmission device comprises a box body, a first transmission shaft, a second transmission shaft, a high-speed driven gear, a low-speed driven gear, a high-speed connecting gear, a low-speed connecting gear, a gear shifting gear sleeve and a driving mechanism, wherein the second transmission shaft is arranged between the high-speed driven gear and the high-speed driving gear corresponding to the second transmission shaft, the high-speed driven gear and the low-speed driven gear are respectively provided with the high-speed connecting gear and the low-speed connecting gear on one sides facing the fixed gear, the fixed gear is sleeved with the gear shifting gear sleeve, and the box body is provided with the driving mechanism for driving the gear shifting gear sleeve to move.
Further, the high-speed connecting gear, the low-speed connecting gear and the fixed gear are straight gears with the same tooth structure.
Furthermore, the high-speed connecting gear and the high-speed driven gear are integrally formed, and the low-speed connecting gear and the low-speed driven gear are integrally formed.
Further actuating mechanism includes the shift fork, and the middle part of shift fork is the stiff end, and the both ends of shift fork are the swing end, the stiff end of shift fork is connected with the bull stick, and the axis of bull stick is on a parallel with the line of two swing ends, the bull stick rotates and connects on the box, the swing end and the gear sleeve of shifting of shift fork are along circumference sliding connection and axial fixity connection.
Furthermore, a sliding groove is formed in the outer circumferential surface of the gear shifting gear sleeve, and the swinging end of the shifting fork extends into the sliding groove.
Furthermore, a sliding block is arranged at the swinging end of the shifting fork, and the sliding block extends into the sliding groove to be in sliding connection with the gear shifting sleeve.
And the further sliding block is rotatably connected with the shifting fork through a shaft.
Furthermore, one end of the rotating rod extends out of the box body and is connected with a driving handle.
Furthermore, a fixing hole is formed in the driving handle, a positioning column penetrates through the fixing hole, a fixing plate is arranged outside the box body, and three positioning holes which are concentric with the fixing hole are formed in the fixing plate.
Further, a stabilizing sleeve is arranged in the box body, and the rotating rod penetrates into the stabilizing sleeve.
Compared with the prior art, the invention has the beneficial effects that: the high-speed and low-speed two-gear gearbox is adopted, so that the wire trunk of the wire drawing machine can generate a high-speed state and a low-speed state to adapt to the drawing of wires with different sizes, and the efficiency is improved; and the gear shifting structure of the speed changing section is reliable in operation and convenient to shift.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a front view in high gear;
FIG. 4 is a side view in high gear;
FIG. 5 is a cross-sectional view in a high gear;
FIG. 6 is a front view in the low gear position;
FIG. 7 is a side view in a low gear position;
FIG. 8 is a schematic view of the engagement of the drive handle with the fixed plate outside the housing;
fig. 9 is a schematic view of the fixing plate outside the case.
Reference numerals: 1. a first drive shaft; 21. a high speed drive gear; 22. a high speed driven gear; 23. a high speed connection gear; 31. a low speed drive gear; 32. a low speed driven gear; 33. a low speed connection gear; 4. a second transmission shaft; 51. a rotating rod; 52. a shifting fork; 53. a drive handle; 531. a positioning column; 54. a stabilizing sleeve; 6. a gear shift sleeve; 65. a chute; 7. fixing a gear; 8. a box body; 9. a fixing plate; 91. and (7) positioning the holes.
Detailed Description
Embodiments of the variable speed gearbox drive of the present invention are further described with reference to fig. 1 to 9.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may, explicitly or implicitly, include one or more of the features, and in the context of this disclosure, a "plurality" or "a plurality" means two or more unless otherwise explicitly specified.
The utility model provides a gear box drive mechanism of variable-speed, includes box 8, is provided with in the box 8:
the input section comprises a first transmission shaft 1, wherein a high-speed driving gear 21 and a low-speed driving gear 31 are arranged on the first transmission shaft 1, and the high-speed driving gear 21 and the low-speed driving gear 31 are fixed with the first transmission shaft 1;
the speed change section comprises a second transmission shaft 4, wherein a high-speed driven gear 22 and a low-speed driven gear 32 are arranged on the second transmission shaft 4, the high-speed driven gear 22 and the low-speed driven gear 32 are rotatably connected with the second transmission shaft 4 through bearings, the high-speed driven gear 22 is meshed with a high-speed driving gear 21, and the low-speed driven gear 32 is meshed with a low-speed driving gear 31; the second transmission shaft 4 is provided with a fixed gear 7 corresponding to a position between the high-speed driven gear 22 and the high-speed driving gear 21, one sides of the high-speed driven gear 22 and the low-speed driven gear 32 facing the fixed gear 7 are respectively provided with a high-speed connecting gear 23 and a low-speed connecting gear 33, the fixed gear 7 is sleeved with a gear shifting gear sleeve 6, and the box body 8 is provided with a driving mechanism for driving the gear shifting gear sleeve 6 to move.
Wherein first transmission shaft 1 is used for connecting the power motor, and usually speaking the two adopt the belt to carry out the transmission, and second transmission shaft 4 can regard as the output shaft, or sets up third transmission shaft etc. again in box 8 as output shaft connecting wire trunk, passes through gear connection with second transmission shaft 4.
The shifting sleeve 6 can be moved in the axial direction of the fixed gear 7 by the action of the drive mechanism in the present embodiment so that the shifting sleeve 6 connects the fixed gear 7 with the high-speed connecting gear 23 or simultaneously connects the fixed gear 7 with the low-speed connecting gear 33.
Specifically, it has the following three states:
a first state: at the neutral position, the gear shifting gear sleeve 6 is completely positioned on the fixed gear 7 and is not connected with the high-speed connecting gear 23 and the low-speed connecting gear 33, and the high-speed driven gear 22 and the low-speed driven gear 32 are in an idle state and cannot transmit power to the second transmission shaft 4;
and a second state: in the high-speed gear, the gear shifting gear sleeve 6 moves towards the high-speed connecting gear 23 and simultaneously connects the fixed gear 7 with the high-speed connecting gear 23, so that power can be transmitted to the second transmission shaft 4 through the first transmission shaft 1, the high-speed driving gear 21, the high-speed driven gear 22, the high-speed connecting gear 23, the gear shifting gear sleeve 6 and the fixed gear 7, and the driven low-speed gear and the low-speed connecting gear 33 are in an idling state;
and a third state: in the low gear, at this time, the shifting gear sleeve 6 moves towards the low-speed connecting gear 33, and simultaneously the fixed gear 7 and the low-speed connecting gear 33 are connected, so that power can be transmitted to the second transmission shaft 4 through the first transmission shaft 1, the low-speed driving gear 31, the low-speed driven gear 32, the low-speed connecting gear 33, the shifting gear sleeve 6 and the fixed gear 7, and at this time, the driven high-speed gear and the high-speed connecting gear 23 are in an idle rotation state.
In the preferred embodiment, the high-speed connecting gear 23, the low-speed connecting gear 33 and the fixed gear 7 are straight gears with the same tooth structure; the gear shifting sleeve 6 can axially move among the low-speed connecting gear 33, the fixed gear 7 and the high-speed connecting gear 23, wherein the diameter of the straight gear is smaller than that of the high-speed driven gear 22 and the low-speed driven gear 32, namely, a blocking surface is formed at the joint of the high-speed connecting gear 23 and the high-speed driven gear 22 and at the joint of the low-speed connecting gear 33 and the low-speed driven gear 32 so as to limit the axial moving distance of the gear shifting sleeve 6.
In the preferred embodiment, the high-speed connecting gear 23 and the high-speed driven gear 22 are integrally formed, and the low-speed connecting gear 33 and the low-speed driven gear 32 are integrally formed, as shown in fig. 5, and both pairs of gears are integrally formed during production.
The preferred actuating mechanism of this embodiment includes shift fork 52, and the middle part of shift fork 52 is the stiff end, and the both ends of shift fork 52 are the swing end, the stiff end of shift fork 52 is connected with bull stick 51, and the axis of bull stick 51 is on a parallel with the line of two swing ends, bull stick 51 rotates and connects on box 8, the swing end and the gear sleeve 6 of shifting of shift fork 52 are along circumference sliding connection and axial fixity connection.
Through the rotation of bull stick 51, can make shift fork 52 use the fixed end to swing as the axle center to the swing end swing position and the range of both ends are all the same, when shift fork 52 swung, can drive gear shift sleeve 6 and move along the axial, in order to connect high-speed gear or low-speed gear.
Wherein the rotating rod 51 can be connected with a motor or an air cylinder for driving or driven in a manual mode as the application.
In the present embodiment, it is preferable that the outer circumferential surface of the shift gear sleeve 6 is provided with a slide groove 65, and the swing end of the shift fork 52 extends into the slide groove 65.
More specifically the swing end of shift fork 52 is provided with the slider, the slider stretches into in the spout 65 with shift gear cover 6 sliding connection, slider and shift fork 52 are connected through the axle rotation, and its lateral wall of spout 65 is straight, and the lateral wall that the slider faced spout 65 this moment can be planar for the slider is great with the lateral wall laminating area of spout 65, and when the slider was to shift gear cover 6 application of force, the working face was bigger, and relative cylindric slider, its wearing and tearing are less.
The manner of manually driving the rotating lever 51 in the present embodiment is as follows: one end of the rotating rod 51 extends out of the box body 8 and is connected with a driving handle 53.
The rotation lever 51 is rotated by rotating the driving handle 53, and the shift sleeve 6 is switched between the high-speed gear and the low-speed gear by rotating the rotation lever 51 by a small angle (10 to 20 °).
As shown in fig. 8 and 9, the driving handle 53 is provided with a fixing hole, a positioning column 531 is inserted into the fixing hole, a fixing plate 9 is provided outside the box 8, and three positioning holes 91 which are concentric with the fixing hole are provided on the fixing plate 9.
The positioning column 531 can penetrate through the fixing hole and one of the positioning holes 91 at the same time, the three positioning holes 91 respectively correspond to the positions of the driving handle 53 in the three states, when the driving handle 53 rotates in place, the positioning column 531 can penetrate through the corresponding positioning hole 91 to fix the driving handle 53, and the gear shift sleeve 6 can be confirmed to reach the designated position.
Preferably, a stabilizing sleeve 54 is arranged in the box body 8, the rotating rod 51 penetrates into the stabilizing sleeve 54, and the stabilizing sleeve 54 enables the rotating rod 51 to be kept stable.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The variable-speed gearbox transmission mechanism is characterized by comprising a box body, wherein the box body is internally provided with:
the input section comprises a first transmission shaft, a high-speed driving gear and a low-speed driving gear are arranged on the first transmission shaft, and the high-speed driving gear and the low-speed driving gear are fixed with the first transmission shaft;
the speed change section comprises a second transmission shaft, a high-speed driven gear and a low-speed driven gear are arranged on the second transmission shaft, the high-speed driven gear and the low-speed driven gear are rotationally connected with the second transmission shaft through bearings, the high-speed driven gear is meshed with a high-speed driving gear, and the low-speed driven gear is meshed with a low-speed driving gear; the transmission device comprises a box body, a first transmission shaft, a second transmission shaft, a high-speed driven gear, a low-speed driven gear, a high-speed connecting gear, a low-speed connecting gear, a gear shifting gear sleeve and a driving mechanism, wherein the second transmission shaft is arranged between the high-speed driven gear and the high-speed driving gear, the second transmission shaft corresponds to the high-speed driven gear, the high-speed driven gear and the low-speed driven gear are respectively provided with the high-speed connecting gear and the low-speed connecting gear on one sides, facing the fixed gear, of the high-speed driven gear and the low-speed driven gear, the gear shifting gear sleeve is sleeved on the fixed gear, and the driving mechanism for driving the gear shifting gear sleeve to move is arranged on the box body.
2. A variable speed gearbox drive according to claim 1, wherein: the high-speed connecting gear, the low-speed connecting gear and the fixed gear are straight gears with the same tooth structures.
3. The variable speed gearbox drive of claim 2, wherein: the high-speed connecting gear and the high-speed driven gear are integrally formed, and the low-speed connecting gear and the low-speed driven gear are integrally formed.
4. A variable speed gearbox drive mechanism according to claim 3, wherein: the driving mechanism comprises a shifting fork, the middle of the shifting fork is a fixed end, the two ends of the shifting fork are swing ends, the fixed end of the shifting fork is connected with a rotating rod, the axis of the rotating rod is parallel to the connecting line of the two swing ends, the rotating rod is rotatably connected onto the box body, and the swing end of the shifting fork is connected with the gear sleeve in a sliding mode in the circumferential direction and is fixedly connected with the shifting gear sleeve in the axial direction.
5. A variable speed gearbox drive according to claim 4, wherein: the outer circumferential surface of the gear shifting sleeve is provided with a sliding groove, and the swinging end of the shifting fork extends into the sliding groove.
6. A variable speed gearbox drive according to claim 5, wherein: the swing end of the shifting fork is provided with a sliding block, and the sliding block extends into the sliding groove to be connected with the gear shifting sleeve in a sliding mode.
7. The variable speed gearbox drive of claim 6, wherein: the sliding block is rotationally connected with the shifting fork through a shaft.
8. A variable speed gearbox drive according to claim 4, wherein: one end of the rotating rod extends out of the box body and is connected with a driving handle.
9. A variable speed gearbox drive according to claim 5, wherein: the driving handle is provided with a fixing hole, a positioning column penetrates through the fixing hole, a fixing plate is arranged outside the box body, and three positioning holes which are concentric with the fixing hole are formed in the fixing plate.
10. The variable speed gearbox drive mechanism of claim 9, wherein: a stabilizing sleeve is arranged in the box body, and the rotating rod penetrates into the stabilizing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211016988.1A CN115234632A (en) | 2022-08-22 | 2022-08-22 | Variable speed gearbox drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211016988.1A CN115234632A (en) | 2022-08-22 | 2022-08-22 | Variable speed gearbox drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115234632A true CN115234632A (en) | 2022-10-25 |
Family
ID=83682007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211016988.1A Pending CN115234632A (en) | 2022-08-22 | 2022-08-22 | Variable speed gearbox drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115234632A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150111688A1 (en) * | 2012-04-25 | 2015-04-23 | Zf Friedrichshafen Ag | Multi-speed gearbox |
| CN204493607U (en) * | 2015-03-10 | 2015-07-22 | 重庆宗申发动机制造有限公司 | A kind of electric motor car two keeps off gear changing system |
| US20180201117A1 (en) * | 2017-01-18 | 2018-07-19 | GM Global Technology Operations LLC | Automatically-shiftable hybrid transaxle |
| CN110043619A (en) * | 2019-04-17 | 2019-07-23 | 西南大学 | The fluid drive power drive system of double overdrive clutch main shafts output of planetary system input |
| CN210068912U (en) * | 2019-05-07 | 2020-02-14 | 熊加刚 | Electric motor car gearbox gearshift and electric motor car gearbox |
| CN211574173U (en) * | 2019-11-12 | 2020-09-25 | 广东含元工业技术有限公司 | Gear box |
| CN211661792U (en) * | 2019-12-12 | 2020-10-13 | 嘉兴国联精密机械有限公司 | Steel brush derusting machine capable of adjusting position of steel brush |
| CN216867428U (en) * | 2021-12-10 | 2022-07-01 | 河北微工制造有限公司 | Horizontal variable speed transfer case of loader |
| US20220221053A1 (en) * | 2021-03-31 | 2022-07-14 | Huawei Digital Power Technologies Co., Ltd. | Gear shifting mechanism, two-speed gearbox, and vehicle |
-
2022
- 2022-08-22 CN CN202211016988.1A patent/CN115234632A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150111688A1 (en) * | 2012-04-25 | 2015-04-23 | Zf Friedrichshafen Ag | Multi-speed gearbox |
| CN204493607U (en) * | 2015-03-10 | 2015-07-22 | 重庆宗申发动机制造有限公司 | A kind of electric motor car two keeps off gear changing system |
| US20180201117A1 (en) * | 2017-01-18 | 2018-07-19 | GM Global Technology Operations LLC | Automatically-shiftable hybrid transaxle |
| CN110043619A (en) * | 2019-04-17 | 2019-07-23 | 西南大学 | The fluid drive power drive system of double overdrive clutch main shafts output of planetary system input |
| CN210068912U (en) * | 2019-05-07 | 2020-02-14 | 熊加刚 | Electric motor car gearbox gearshift and electric motor car gearbox |
| CN211574173U (en) * | 2019-11-12 | 2020-09-25 | 广东含元工业技术有限公司 | Gear box |
| CN211661792U (en) * | 2019-12-12 | 2020-10-13 | 嘉兴国联精密机械有限公司 | Steel brush derusting machine capable of adjusting position of steel brush |
| US20220221053A1 (en) * | 2021-03-31 | 2022-07-14 | Huawei Digital Power Technologies Co., Ltd. | Gear shifting mechanism, two-speed gearbox, and vehicle |
| CN216867428U (en) * | 2021-12-10 | 2022-07-01 | 河北微工制造有限公司 | Horizontal variable speed transfer case of loader |
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Application publication date: 20221025 |
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