CN216332350U - Preposed counterweight adjusting device of electric tractor - Google Patents
Preposed counterweight adjusting device of electric tractor Download PDFInfo
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- CN216332350U CN216332350U CN202122901600.3U CN202122901600U CN216332350U CN 216332350 U CN216332350 U CN 216332350U CN 202122901600 U CN202122901600 U CN 202122901600U CN 216332350 U CN216332350 U CN 216332350U
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Abstract
The utility model discloses a preposed counterweight adjusting device of an electric tractor, the electric tractor comprises a frame, a hydraulic pump, a hydraulic lifting cylinder and a PLC (programmable logic controller), the hydraulic pump is connected with the hydraulic lifting cylinder through a pipeline, and the preposed counterweight adjusting device comprises: a ball screw sliding table fixed at the front part of the frame; the balancing weight is fixed on the sliding table of the ball screw sliding table; the motor drives a screw rod of the ball screw sliding table to rotate; the hydraulic flow sensor is arranged on the pipeline; the motor and the hydraulic flow sensor are electrically connected with the PLC. The utility model relates to the technical field of tractor balance weights, and solves the problems that the existing electric tractor has poor longitudinal stability and is easy to cause accidents when an agricultural implement is hung at the rear part.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, in particular to a front counterweight adjusting device of an electric tractor.
Background
When general tractor hangs agricultural implement operation, in order to increase tractor front and back wheel adhesive force and prevent to take place the nose because the overweight and the working resistance of the agricultural implement that hang takes place to stick up when too big, often need add at the tractor front and back wheel and hang the balancing weight, but the balancing weight adopts materials such as cast steel, cast iron mostly, and is heavier and assemble troublesome, in case the bump, takes place danger very easily. When the tractor is used and the plowing or traction operation resistance is large, the tractor can always warp and slip, and more counter weights need to be added. The electric tractor has lighter weight because of the elimination of the engine, the gearbox and other devices, and the counterweight at the front wheel and the rear wheel needs to be additionally arranged.
At present, a mode of arranging a counterweight block component at the front part of the tractor is used for keeping certain load distribution of a front shaft, so that the whole tractor is not easy to warp, but the weight of the counterweight block component is large, so that a mode of fixing weight and mounting at one time is often adopted, and when different matched machines and tools are applied to the tractor, the distance of the front shaft load is large, the front driving wheel is easy to slip due to small load, and the front driving wheel is difficult to steer due to large load.
Disclosure of Invention
The embodiment of the application aims at providing a preposed counterweight adjusting device of an electric tractor, which can stabilize the gravity center position of the tractor, realize an adjustable preposed counterweight mechanism with more reasonable distribution, change the counterweight distribution at the front and the rear parts at any time according to the operation condition, stabilize the gravity center position of the whole tractor by adjusting the position of a counterweight at the front frame, and adapt to the operation of agricultural implements under different working conditions.
According to the embodiment of the application, a leading counterweight adjusting device of electric tractor is provided, electric tractor includes frame, hydraulic pump, hydraulic pressure lifting cylinder, PLC controller, the hydraulic pump passes through the pipeline with hydraulic pressure lifting cylinder and links to each other its characterized in that, leading counterweight adjusting device includes:
a ball screw sliding table fixed at the front part of the frame;
the balancing weight is fixed on the sliding table of the ball screw sliding table;
the motor drives a screw rod of the ball screw sliding table to rotate; and
a hydraulic flow sensor disposed on the pipeline;
the motor and the hydraulic flow sensor are electrically connected with the PLC.
Further, ball screw slip table includes:
a sliding table base;
the ball screw is rotationally connected to the sliding table base and is driven to rotate by the motor;
the guide rail is fixed on the sliding table base and is arranged in parallel with the ball screw; and
the sliding table is sleeved on the ball screw and the guide rail at the same time and meshed with the ball screw; the balancing weight is fixed on the sliding table.
Further, the ball screw is connected with the motor through a coupler.
Further, the motor adopts a stepping motor.
Further, still include motor driver, motor driver respectively with motor and PLC controller electricity are connected.
Further, two ends of the ball screw are mounted on the sliding table base 106 through bearing seats.
Further, still include the power supply battery, the power supply battery provides the power for the motor.
Further, the hydraulic lifting cylinder is used for lifting an agricultural implement suspended behind the electric tractor.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the embodiment, the present application mainly adopts ball screw counter weight structure and hydraulic flow device, can carry out counter weight adjustment focus in the electric tractor bottom when the tractor rear portion hangs agricultural implement, detect the required hydraulic pressure force information of rear portion suspension agricultural implement according to hydraulic flow device simultaneously and come the counter weight of driving motor adjustment electric tractor frame below, reduce the emergence of accident, make the tractor more stable, it is not good to have solved the longitudinal stability when current tractor need hang agricultural implement at the rear portion, cause the problem of accident easily.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic perspective view of a front counterweight adjustment device of an electric tractor according to an embodiment of the present invention;
fig. 2 is a schematic bottom view of a front counterweight adjustment device of an electric tractor according to an embodiment of the utility model;
FIG. 3 is a schematic bottom view of a prepositioned weight adjusting device provided in an embodiment of the utility model;
fig. 4 is a schematic perspective view of a preset counterweight adjustment device according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a frame lever force balance provided by the embodiment of the utility model.
In the figure, 1, an electric tractor; 11. a frame; 12. a hydraulic pump; 13. a hydraulic lift cylinder; 14. a pipeline; 2. a preposed counterweight adjusting device; 21. a ball screw sliding table; 22. a balancing weight; 23. a motor; 24. a hydraulic flow sensor; 211. a sliding table base; 212. a ball screw; 213. a guide rail; 214. a sliding table; 215. a coupling; 216. a motor driver; 25. a power supply battery; 3. an agricultural implement.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
Referring to fig. 1 to 4, an embodiment of the present invention provides a front counterweight adjusting device of an electric tractor, where the electric tractor 1 includes a frame 11, a hydraulic pump 12, a hydraulic lift cylinder 13, and a PLC controller, the hydraulic pump 12 and the hydraulic lift cylinder 13 are connected by a pipeline 14, and the front counterweight adjusting device 2 includes: a ball screw sliding table 21 fixed at the front part of the frame 11; the counterweight 22 is fixed on the sliding table 214 of the ball screw sliding table 21; the motor 23 drives the screw rod of the ball screw sliding table 21 to rotate; a hydraulic flow sensor 24, said hydraulic flow sensor 24 being disposed on said line 14; the motor 23 and the hydraulic flow sensor 24 are electrically connected with the PLC. When the agricultural implement 3 is hung on the rear portion of the frame 11 of the electric tractor 1, the balance weight can be carried out through the preposed balance weight adjusting device 2, and the stability of the tractor body is improved.
In one embodiment, the ball screw sliding table 21 includes: the sliding table comprises a sliding table base 211, a ball screw 212, a guide rail 213 and a sliding table 214, wherein the ball screw 212 is rotationally connected to the sliding table base 211, and the ball screw 212 is driven by the motor 23 to rotate; the guide rail 213 is fixed on the sliding table base 211 and is arranged in parallel with the ball screw 212; the sliding table 214 is sleeved on the ball screw 212 and the guide rail 213 at the same time and meshed with the ball screw 212; the counterweight 22 is fixed on the sliding table 214.
In one embodiment, two ends of the ball screw 212 are mounted on the sliding table base 211 through bearing seats. The ball screw 212 is connected with the motor 23 through a coupling 215.
In an embodiment, the motor 23 is a stepping motor 23, and further includes a motor driver 216, and the motor driver 216 is electrically connected to the motor 23 and the PLC controller, respectively.
In one embodiment, a power supply battery 25 is also included, the power supply battery 25 providing power to the motor 23.
In one embodiment, the hydraulic lift cylinder 13 is used to lift the implement 3 suspended behind the electric tractor 1.
As shown in the figure, the motor driver 216 receives a signal to drive the stepping motor 23 to rotate forward and backward, the stepping motor 23 is connected to the ball screw through the coupling 215, and the stepping motor 23 can drive the ball screw 212 to rotate forward and backward, so as to drive the counterweight sliding block to move longitudinally, thereby realizing the adjustment of the center of gravity. When the center of gravity needs to be adjusted forward, the stepping motor 23 rotates forward, and the counterweight sliding block is driven by the ball screw to slide forward on the guide rail 213, so that the purpose of adjusting the center of gravity forward is achieved, and vice versa.
When the agricultural implement 3 needs to be put down, the oil circuit can be disconnected through the hydraulic pump 12, hydraulic oil in the hydraulic cylinder flows back to the hydraulic oil tank under the action of the self gravity of the agricultural implement 3, the piston push rod of the hydraulic cylinder retracts, the agricultural implement 3 descends along with the hydraulic lifting rod, and the PLC drives the motor 23 to move the counterweight sliding block according to information transmitted by the hydraulic flow sensor 24, so that the counterweight sliding block moves to the initial gravity center position below the hydraulic oil tank.
Referring to fig. 5, according to the influence of parameters such as resistance on the center of gravity of the tractor during the operation of lifting the agricultural implement 3, the hydraulic pump 12 is directly powered by the hydraulic engine, and the required hydraulic pressure is detected by the hydraulic flow sensor 24Force is obtained, namely F of the hydraulic cylinder on the rear suspension agricultural implement 31The lifting force is mechanically analyzed through the rear suspension to obtain the reaction force F of the agricultural implement 3 to the frame 112The gravity center of the original body of the electric tractor 1 is positioned at the point A and the gravity center reaches the reaction force F2Arm of force of L1. The PLC drives the stepping motor 23 to move the counterweight sliding block according to the information transmitted by the hydraulic flow sensor 24, and the counterweight sliding block forms a pulling force F on the frame 11 through the self gravity3The gravity center of the original body of the electric tractor 1 is positioned at the point A and reaches the pulling force F3Arm of force of L2. By the lever principle: f2×L1＝F3×L2The gravity center position of the electric tractor 1 is stabilized, and the lever fulcrum is the integral gravity center of the tractor, so that the support is balanced.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (8)
1. The utility model provides an electric tractor's leading counter weight adjusting device, electric tractor includes frame, hydraulic pump, hydraulic lifting cylinder, PLC controller, the hydraulic pump passes through the pipeline with hydraulic lifting cylinder and links to each other, its characterized in that, leading counter weight adjusting device includes:
a ball screw sliding table fixed at the front part of the frame;
the balancing weight is fixed on the sliding table of the ball screw sliding table;
the motor drives a screw rod of the ball screw sliding table to rotate; and
a hydraulic flow sensor disposed on the pipeline;
the motor and the hydraulic flow sensor are electrically connected with the PLC.
2. The front load adjuster of an electric tractor according to claim 1, wherein the ball screw slide table includes:
a sliding table base;
the ball screw is rotationally connected to the sliding table base and is driven to rotate by the motor;
the guide rail is fixed on the sliding table base and is arranged in parallel with the ball screw; and
the sliding table is sleeved on the ball screw and the guide rail at the same time and meshed with the ball screw; the balancing weight is fixed on the sliding table.
3. The front counterweight adjustment device of an electric tractor as claimed in claim 1, wherein the ball screw is connected to the motor through a coupling.
4. The front counterweight adjustment device of an electric tractor as claimed in claim 1, wherein the motor is a stepping motor.
5. The front counterweight adjustment device of an electric tractor as claimed in claim 1, further comprising a motor driver electrically connected to the motor and the PLC controller, respectively.
6. The front counterweight adjustment device of an electric tractor as claimed in claim 2, wherein both ends of the ball screw are mounted on the slide base through bearing seats.
7. The front counterweight adjustment device of an electric tractor as claimed in claim 1, further comprising a power supply battery for supplying power to the motor.
8. The forward counterweight adjustment device of an electric tractor as defined in claim 1, wherein said hydraulic lift cylinder is used to lift an agricultural implement suspended behind said electric tractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122901600.3U CN216332350U (en) | 2021-11-24 | 2021-11-24 | Preposed counterweight adjusting device of electric tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122901600.3U CN216332350U (en) | 2021-11-24 | 2021-11-24 | Preposed counterweight adjusting device of electric tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216332350U true CN216332350U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122901600.3U Active CN216332350U (en) | 2021-11-24 | 2021-11-24 | Preposed counterweight adjusting device of electric tractor |
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| CN (1) | CN216332350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11858564B2 (en) | 2021-08-17 | 2024-01-02 | Cnh Industrial America Llc | Vehicle with repositionable ballast |
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2021
- 2021-11-24 CN CN202122901600.3U patent/CN216332350U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11858564B2 (en) | 2021-08-17 | 2024-01-02 | Cnh Industrial America Llc | Vehicle with repositionable ballast |
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