CN212712484U - Boom of work vehicle and work vehicle - Google Patents
Boom of work vehicle and work vehicle Download PDFInfo
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- CN212712484U CN212712484U CN202020840121.8U CN202020840121U CN212712484U CN 212712484 U CN212712484 U CN 212712484U CN 202020840121 U CN202020840121 U CN 202020840121U CN 212712484 U CN212712484 U CN 212712484U
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Abstract
The utility model provides a work vehicle's cantilever crane and work vehicle. The boom of the work vehicle includes: a turntable; the arm joint is arranged on the rotary table; the electric drive assembly is arranged between the rotary table and the arm sections or/and is arranged between two adjacent arm sections and is suitable for driving the arm support to act. The utility model discloses can effectively reduce cantilever crane drive arrangement's volume and weight to improve the flexible degree of work of cantilever crane from this.
Description
Technical Field
The utility model relates to a technical field of work vehicle particularly, relates to work vehicle's cantilever crane and work vehicle.
Background
Work vehicles are typically provided with an arm support. One of the disadvantages of the related art is that the response of the driving device for driving the boom of the work vehicle is slow, resulting in a low degree of flexibility and response speed of the boom. The response speed and the working flexibility of the boom directly influence the working efficiency and the action accuracy of the working vehicle.
SUMMERY OF THE UTILITY MODEL
The present invention aims to solve at least one of the above technical problems.
Therefore, a first object of the present invention is to provide an arm support for a working vehicle.
A second object of the present invention is to provide a working vehicle.
For realizing the utility model discloses a first purpose, the embodiment of the utility model provides an operation vehicle's cantilever crane, include: a turntable; the arm joint is arranged on the rotary table; the electric drive assembly is arranged between the rotary table and the arm sections or/and is arranged between two adjacent arm sections and is suitable for driving the arm support to act.
In the related art, an oil cylinder is used as a driving device of an arm support. In the embodiment, the arm support is directly driven to act by the electric driving assembly, and the position and/or the angle of the arm section are accurately and sensitively controlled by the electric driving assembly under the electric driving. The driving action of the oil cylinder is delayed, and the response is slow. Besides, the contraction and extension of the oil cylinder need to be supported by a large amount of hydraulic oil, and the oil return amount is large, so that the oil cylinder in the related technology needs to be matched with an oil storage tank with a large volume. The oil cylinder is made of a plurality of components with large volumes and complex structures, such as an oil storage tank, an oil return device, hydraulic oil, an oil pump, a multi-way valve, a balance valve, a sealing element, a hydraulic oil filter element and the like, so that the oil cylinder is complex in overall structure, large in volume and high in weight, the failure rate of the oil cylinder is high, and the maintenance and replacement costs are high. In contrast, the electric driving assembly of the embodiment is not only sensitive in response and accurate in stroke, but also does not need a complex oil return route and structure, and is small in size, simple in structure, light in weight and low in production and maintenance cost. Therefore, the working flexibility of the arm support can be improved, and the production and maintenance cost is saved.
In addition, the technical solution provided by the above embodiment of the present invention can also have the following additional technical features:
in the above technical solution, the electric drive assembly includes: a first electric drive assembly; the first electric drive assembly is arranged between the rotary table and the arm section and is suitable for driving the arm section to rotate around the rotary table.
The present embodiment adjusts the angle between the arm section and the turntable through the first electric driving assembly, and the first electric driving assembly can push the arm section of the portion adjacent to the turntable to perform stable rotation opening or rotation retraction.
In any of the above technical solutions, the electric drive assembly includes: a second electric drive assembly; the second electric drive assembly is arranged between any two adjacent sub-arm sections and is suitable for driving one of any two adjacent sub-arm sections to rotate around the other one.
The second electric drive assembly can push each sub-arm section to rotate stably to open or rotate to retract.
In any of the above solutions, the electric drive assembly is adapted to switch between a first operating state and a second operating state, the electric drive assembly drives at least a part of the arm section to extend in the first operating state, and the electric drive assembly drives at least a part of the arm section to retract in the second operating state.
The arm section of the embodiment can flexibly adjust the conveying position, height, angle and direction of concrete.
In any of the above technical solutions, the boom of the work vehicle further includes: a connecting rod; wherein, the electric drive assembly is connected with the arm section through the connecting rod.
The electric drive assembly may be indirectly connected to the arm sections by a link. The connecting rod is arranged between the electric drive assembly and the arm section and is respectively connected with the electric drive assembly and the arm section. The electric drive assembly drives the connecting rod to move, so that the connecting rod is brought into the arm section to rotate.
In any of the above technical solutions, the boom of the work vehicle further includes: the speed reducer is arranged on the electric drive assembly and is suitable for adjusting the output torque of the electric drive assembly.
The speed reducer is used for adjusting the rotating speed of a motor of the electric drive assembly so as to improve the output torque of the electric drive assembly. From this, the reduction gear of this embodiment and electric drive assembly mutually support to guarantee electric drive assembly's stability and sensitivity.
In any of the above technical solutions, the electric driving assembly includes at least one of the following components or a combination thereof: the electric cylinder driving component and the electric push rod driving component.
The electric cylinder driving assembly or the electric push rod driving assembly is suitable for converting the rotation of the motor into linear motion and pushing the arm section to move. The electric cylinder driving assembly or the electric push rod driving assembly is easy to control, high in control precision and control sensitivity, rapid in response, and capable of further improving the low working flexibility and response sensitivity of the arm support of the working vehicle.
In any one of the above technical solutions, the electric driving assembly includes an electric cylinder driving assembly, and the electric cylinder driving assembly includes: a first motor including a first motor output shaft; and the ball screw is connected with the output shaft of the first motor and is suitable for converting the rotary motion of the output shaft of the first motor into linear motion so as to apply acting force to the arm section along the linear direction.
The first motor output shaft of the present embodiment extends from the first motor to output the torque of the first motor by rotation. The ball screw structure is sleeved on the first motor output shaft, and balls of the ball screw structure roll under the driving of the first motor output shaft so as to drive the screw to move along the linear direction. Therefore, the ball screw can effectively output the torque of the first motor and stably drive the arm joint to move.
In any one of the above technical solutions, the electric driving assembly includes an electric push rod driving assembly, and the electric push rod driving assembly includes: a second motor including a second motor output shaft; and the push rod is connected with the output shaft of the second motor and is suitable for converting the rotary motion of the output shaft of the second motor into linear motion so as to apply acting force to the arm section along the linear direction.
The second motor output shaft of the present embodiment extends from the second motor to output the torque of the second motor by rotation. The push rod structure is connected with an output shaft of the second motor, and the push rod moves under the driving of the output shaft of the second motor. Therefore, the push rod structure can effectively output the torque of the second motor and stably drive the arm joint to move.
For realizing the utility model discloses a second purpose, the embodiment of the utility model provides an operating vehicle, include: a vehicle body; like the utility model discloses the cantilever crane of any embodiment is located on the vehicle body.
The utility model discloses the working vehicle includes the utility model discloses the cantilever crane of any embodiment, therefore it has the utility model discloses whole beneficial effect of the cantilever crane of any embodiment, no longer describe here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a first structure of an arm support according to some embodiments of the present invention;
fig. 2 is a second schematic structural view of an arm support according to some embodiments of the present invention;
fig. 3 is a schematic diagram of a system configuration of a work vehicle according to some embodiments of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
100: work vehicle, 200: vehicle body, 300: arm support, 310: turntable, 320: arm segment, 322: head terminal arm segment, 324: middle sub-arm segment, 326: tail terminal arm segment, 330: electric drive assembly, 332: first electric drive assembly, 334: a second electric drive assembly.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The boom 300 and the work vehicle 100 of the work vehicle of some embodiments of the present invention are described below with reference to fig. 1 to 3.
For example, a concrete pump truck, a fire truck, a crane and other working vehicles need to be provided and used with an arm support in work. Therefore, the arm support needs to be equipped with a corresponding arm support driving device, and the arm support driving device drives the arm support to move. In the related art, the boom driving device of the working vehicle is usually driven by an oil cylinder, and the volume and the weight of the boom driving device are large due to the oil cylinder driving. Therefore, the boom driving device and the boom of the work vehicle in the related art have low flexibility in operation.
In view of the above, in order to reduce the volume and weight of the boom driving device and improve the boom 300 of the working vehicle, the present invention provides the following embodiments.
Example 1:
as shown in fig. 1, the present embodiment provides an arm support 300 of a work vehicle 100, including: a turntable 310, an arm segment 320, and an electric drive assembly 330. The arm segment 320 is provided on the turntable 310. The electric driving assembly 330 is disposed between the turntable 310 and the arm sections 320, or/and the electric driving assembly 330 is disposed between two adjacent arm sections 320 and is adapted to drive the arm support to move.
The boom 300 of the embodiment is adapted to support and fix a concrete conveying pipeline of the work vehicle 100 and convey concrete in the concrete conveying pipeline and the concrete conveying pipeline to a designated position. In order to achieve the above function, the boom 300 of the present embodiment needs to be equipped with a boom driving device. The boom driving device of this embodiment is specifically an electric driving assembly 330, and the electric driving assembly 330 drives or drives the arm section 320 of the boom 300 to rotate under the driving of electric power. Specifically, the boom 300 of the present embodiment includes a turntable 310 and a plurality of arm sections 320, the turntable 310 is connected and fixed to the vehicle body 200 of the work vehicle 100, and the number of the arm sections 320 is plural. The arm section 320 is connected with the turntable 310, and the turntable 310 is rotated in a circumferential direction to adjust a working position and/or angle of the arm section 320. Two adjacent arm sections 320 of the plurality of arm sections 320 are rotatably connected to each other. The electric driving assembly 330 of this embodiment drives the arm section 320 to rotate, so that the feeding position and/or the feeding angle of the arm support 300 can be adjusted.
In the related art, an oil cylinder is used as a driving device of the arm support 300. In the embodiment, the electric drive assembly 330 directly drives the arm support to move, and the electric drive assembly 330 is used for accurately and sensitively controlling the position and/or the angle of the arm section 320 under the driving of the electric power. The driving action of the oil cylinder is delayed, and the response is slow. Besides, the contraction and extension of the oil cylinder need to be supported by a large amount of hydraulic oil, and the oil return amount is large, so that the oil cylinder in the related technology needs to be matched with an oil storage tank with a large volume. The oil cylinder is made of a plurality of components with large volumes and complex structures, such as an oil storage tank, an oil return device, hydraulic oil, an oil pump, a multi-way valve, a balance valve, a sealing element, a hydraulic oil filter element and the like, so that the oil cylinder is complex in overall structure, large in volume and high in weight, the failure rate of the oil cylinder is high, and the maintenance and replacement costs are high. In contrast, the electric driving assembly 330 of the present embodiment is not only sensitive in response, precise in stroke, and does not require a complicated oil return route and structure, but also is small in size, simple in structure, light in weight, and low in production and maintenance costs. Therefore, the present embodiment can improve the flexibility of the boom 300 and save the production and maintenance costs.
Example 2:
as shown in fig. 2, the present embodiment provides an arm support 300 of a work vehicle 100, and in addition to the technical features of embodiment 1, the present embodiment further includes the following technical features.
The electric drive assembly 330 includes: a first electric drive assembly 332. Wherein, the first electric driving assembly 332 is disposed between the turntable 310 and the arm segment 320, and is adapted to drive the arm segment 320 to rotate around the turntable 310.
In this embodiment, the first electric drive assembly 332 is operable to drive and control the arm segment 320 adjacent to and connected to the turntable 310. Specifically, as shown in fig. 2, the arm segment 320 specifically includes a leading terminal arm segment 322, a middle sub-arm segment 324, and a trailing sub-arm segment 326. Wherein the head end sub-arm section 322 is connected to the turntable 310. The middle sub-arm section 324 is connected to the head sub-arm section 322, and the number of the middle sub-arm sections 324 is one or more. The tail terminal arm segment 326 is connected to an end of the middle sub-arm segment 324 distal from the head terminal arm segment 322. Concrete delivery management is secured above arm segments 320. In use, an operator controls arm segment 320 and head sub-arm segment 322 may be rotated about turntable 310 by first electric drive assembly 332. The respective middle sub-arm segments 324 are rotatably bent relative to each other to adjust the overall height of the arm segment 320 and the direction and position of travel of the tail sub-arm segment 326. A concrete outlet is provided on the concrete pipe at the tail terminal arm section 326, and the concrete is output through the concrete outlet.
The present embodiment adjusts the angle between the arm segment 320 and the turntable 310 through the first electric driving assembly 332, and the first electric driving assembly 332 can push the arm segment 320 of the portion adjacent to the turntable 310 to rotate stably to open or rotate to retract.
Example 3:
as shown in fig. 2, the present embodiment provides an arm support 300 of a work vehicle 100, and in addition to the technical features of any of the above embodiments, the present embodiment further includes the following technical features.
The electric drive assembly 330 includes: a second electric drive assembly 334. Wherein the arm section 320 comprises at least two sub-arm sections, and the second electric driving assembly 334 is disposed between any two adjacent sub-arm sections and is adapted to drive any one of the two adjacent sub-arm sections to rotate around the other one.
In this embodiment, the second electric drive assembly 334 is operable to drive and control one of the two adjacent sub-arm sections to rotate one of the sub-arm sections to open or retract with respect to the other sub-arm section. Specifically, as shown in fig. 2, the arm segment 320 specifically includes a leading terminal arm segment 322, a middle sub-arm segment 324, and a trailing sub-arm segment 326. Wherein the head end sub-arm section 322 is connected to the turntable 310. The middle sub-arm section 324 is connected to the head sub-arm section 322, and the number of the middle sub-arm sections 324 is one or more. The tail terminal arm segment 326 is connected to an end of the middle sub-arm segment 324 distal from the head terminal arm segment 322. The second electric driving assembly 334 of this embodiment may be disposed between the first terminal arm section 322 and the middle sub-arm section 324, between two adjacent middle sub-arm sections 324, or between the middle sub-arm section 324 and the tail sub-arm section 326.
The second electric drive assembly 334 can push each sub-arm section to rotate stably to open or rotate to retract by adjusting the angle between each sub-arm section through the second electric drive assembly 334.
Example 4:
the present embodiment provides an arm support 300 of a work vehicle 100, and in addition to the technical features of any of the above embodiments, the present embodiment further includes the following technical features.
In other words, the arm segment 320 of the present embodiment includes a plurality of sub-arm segments such as a leading sub-arm segment 322, a middle sub-arm segment 324, and a trailing sub-arm segment 326. The sub-arm sections are movably connected. One or more electric drive assemblies 330 are disposed between any two adjacent sub-arm segments. One end of the electric driving assembly 330 is fixedly connected to one of any two adjacent sub-arm sections, which is relatively close to the turntable 310, and the other end of the electric driving assembly 330 extends in a linear direction in a first working state to drive one of any two adjacent sub-arm sections, which is relatively far from the turntable 310, to be unfolded in a rotating manner, and contracts in the linear direction in a second working state to drive one of any two adjacent sub-arm sections, which is relatively far from the turntable 310, to be retracted in the rotating manner. Each sub-arm section performs an action suitable for the above, and thus the arm section 320 of the present embodiment can flexibly adjust the conveying position, height, angle, and direction of the concrete.
Example 5:
the present embodiment provides an arm support 300 of a work vehicle 100, and in addition to the technical features of any of the above embodiments, the present embodiment further includes the following technical features.
The electric drive assembly 330 may be directly connected to the arm segment 320 and directly drive the movement of any one of the sub-arm segments, such as the leading sub-arm segment 322, the middle sub-arm segment 324, and the trailing sub-arm segment 326. The electric drive assembly 330 may also be indirectly connected to the arm segment 320 via a linkage. The connecting rod is disposed between the electric driving assembly 330 and the arm section 320, and is connected to the electric driving assembly 330 and the arm section 320, respectively. The electric drive assembly 330 drives the link to move so that the link is brought into the arm section 320 for rotation.
Example 6:
the present embodiment provides an arm support 300 of a work vehicle 100, and in addition to the technical features of any of the above embodiments, the present embodiment further includes the following technical features.
The reducer is used to adjust the motor speed of the electric driving assembly 330 to increase the output torque of the electric driving assembly 330. Thus, the speed reducer of the present embodiment cooperates with the electric driving assembly 330 to ensure the stability and sensitivity of the electric driving assembly 330.
Example 7:
the present embodiment provides an arm support 300 of a work vehicle 100, and in addition to the technical features of any of the above embodiments, the present embodiment further includes the following technical features.
The electric drive assembly 330 includes at least one or a combination of: the electric cylinder driving component and the electric push rod driving component.
The electric cylinder drive assembly or electric push rod drive assembly is adapted to convert the rotation of the motor into linear motion and thereby move the arm segment 320. The electric cylinder driving assembly or the electric push rod driving assembly is easy to control, high in control precision and control sensitivity, quick in response, and capable of further improving the low working flexibility and response sensitivity of the boom 300 of the work vehicle 100.
Example 8:
the present embodiment provides an arm support 300 of a work vehicle 100, and in addition to the technical features of any of the above embodiments, the present embodiment further includes the following technical features.
The electric drive assembly 330 comprises an electric cylinder drive assembly comprising: a first motor and a ball screw. The first motor includes a first motor output shaft. The ball screw is coupled to the first motor output shaft and is adapted to translate the rotational motion of the first motor output shaft into a linear motion to apply a force to the arm segment 320 in a linear direction. The first motor output shaft of the present embodiment extends from the first motor to output the torque of the first motor by rotation. The ball screw structure is sleeved on the first motor output shaft, and balls of the ball screw structure roll under the driving of the first motor output shaft so as to drive the screw to move along the linear direction. Therefore, the ball screw can effectively output the torque of the first motor and stably drive the arm section 320 to move.
Example 9:
the present embodiment provides an arm support 300 of a work vehicle 100, and in addition to the technical features of any of the above embodiments, the present embodiment further includes the following technical features.
The electric drive assembly 330 includes an electric putter drive assembly including: a second motor and a push rod. The second motor includes a second motor output shaft. The push rod is connected with the output shaft of the second motor and is adapted to convert the rotary motion of the output shaft of the second motor into a linear motion to apply a force to the arm segment 320 in a linear direction.
The second motor output shaft of the present embodiment extends from the second motor to output the torque of the second motor by rotation. The push rod structure is connected with an output shaft of the second motor, and the push rod moves under the driving of the output shaft of the second motor. Therefore, the push rod structure can effectively output the torque of the second motor and stably drive the arm section 320 to move.
Example 10:
as shown in fig. 3, the present embodiment provides a work vehicle 100 including: vehicle body 200 and like the utility model discloses any embodiment's cantilever crane 300, cantilever crane 300 locates above vehicle body 200.
The work vehicle 100 of the present embodiment may be any one of a concrete pump truck, a fire truck, and a crane.
For example, the working vehicle 100 of the embodiment is embodied as a concrete pump vehicle, and the concrete pump vehicle is provided with a stirring device and a conveying device, which can mix and stir fluid or powdery building materials such as concrete and convey the building materials. The work vehicle 100 transports concrete in a concrete transportation pipeline and a concrete transportation pipeline to a designated position through the boom 300 according to any embodiment of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The embodiment provides an arm support 300 and a work vehicle 100 with the arm support 300.
The boom 300 of the work vehicle in the related art employs a cylinder driving structure. The oil cylinder driving structure has the following disadvantages: the oil cylinder driving action is delayed and the response is slow; the oil return amount is large due to the expansion of the oil cylinder, and a large oil tank is needed for storing large oil, so that the weight of the oil tank and the oil and the replacement cost of the oil, the sealing element and the filter element are increased; the oil cylinder is matched with oil pumps, multi-way valves, balance valves and other hydraulic components, and the oil cylinder has the advantages of precise structure, high purchasing and maintenance cost, high failure rate and heavy weight.
To solve at least one of the above disadvantages, the arm support 300 of the present embodiment includes a rotary table 310, an arm section 320, and an electric driving assembly 330. The present embodiment employs an electric drive assembly 330 (i.e., an electric cylinder) instead of a cylinder drive structure to achieve the extending and retracting actions of the arm segments 320.
Specifically, in the present embodiment, the electric driving assembly 330 including the electric cylinder driving assembly or the electric push rod driving assembly is used to replace the oil cylinder driving structure in the related art, so as to eliminate the components such as a pump, a multi-way valve, a balance valve, an oil inlet/return pipe, an oil tank, hydraulic oil and the like which are matched with the oil cylinder, and the volume and the weight of the oil cylinder are small. In addition, the electric driving assembly 330, such as an electric cylinder driving assembly, has the advantages of natural mechanical self-locking performance and quick response, thereby improving the operability of the boom 300, facilitating the intelligent control of the boom 300 and having low maintenance cost.
To sum up, the utility model discloses beneficial effect does:
1. in the embodiment, the electric drive assembly 330 directly drives the boom motion and the electric drive assembly 330 accurately and sensitively controls the arm sections 320 of the boom 300 under the driving of the electric power.
2. The electric drive assembly 330 of the present embodiment converts the rotation of the motor into a linear motion and thereby moves the arm segment 320. The electric driving assembly 330 of the present embodiment is not only sensitive in response, precise in stroke, and does not require a complicated oil return route and structure, but also has a small volume, a simple structure, a light weight, and low production and maintenance costs. Therefore, the present embodiment can improve the low degree of flexibility and response sensitivity of the boom 300 of the work vehicle 100, and save production and maintenance costs.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An arm support for a work vehicle, comprising:
a turntable;
the arm joint is arranged on the rotary table;
the electric drive assembly is arranged between the rotary table and the arm sections or/and is arranged between two adjacent arm sections and is suitable for driving the arm support to act.
2. The boom of a work vehicle of claim 1, wherein the electric drive assembly comprises:
a first electric drive assembly;
the first electric power driving assembly is arranged between the rotary table and the arm section and is suitable for driving the arm section to rotate around the rotary table.
3. The boom of a work vehicle of claim 1, wherein the electric drive assembly comprises:
a second electric drive assembly;
the arm section comprises at least two sub-arm sections, and the second electric drive assembly is arranged between any two adjacent sub-arm sections and is suitable for driving one of the two adjacent sub-arm sections to rotate around the other one.
4. The boom of a work vehicle according to any of claims 1 to 3,
the electric drive assembly is adapted to switch between a first operating condition in which the electric drive assembly drives extension of at least a portion of the arm section and a second operating condition in which the electric drive assembly drives retraction of at least a portion of the arm section.
5. The boom of a work vehicle according to any one of claims 1 to 3, further comprising:
a connecting rod;
wherein the electric drive assembly is connected with the arm section through the connecting rod.
6. The boom of a work vehicle according to any one of claims 1 to 3, further comprising:
and the speed reducer is arranged on the electric drive assembly and is suitable for adjusting the output torque of the electric drive assembly.
7. The boom of a work vehicle of any of claims 1-3, wherein the electric drive assembly comprises at least one of, or a combination of:
the electric cylinder driving component and the electric push rod driving component.
8. The boom of a work vehicle of any of claims 1-3, wherein the electric drive assembly comprises an electric cylinder drive assembly comprising:
a first motor including a first motor output shaft;
and the ball screw is connected with the output shaft of the first motor and is suitable for converting the rotary motion of the output shaft of the first motor into linear motion so as to apply acting force to the arm section along the linear direction.
9. The boom of any of claims 1-3, wherein the electric drive assembly comprises an electric push rod drive assembly comprising:
a second motor including a second motor output shaft;
and the push rod is connected with the output shaft of the second motor and is suitable for converting the rotary motion of the output shaft of the second motor into linear motion so as to apply acting force to the arm section along the linear direction.
10. A work vehicle, characterized by comprising:
a vehicle body;
the boom of any one of claims 1 to 9, being provided above the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020840121.8U CN212712484U (en) | 2020-05-19 | 2020-05-19 | Boom of work vehicle and work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020840121.8U CN212712484U (en) | 2020-05-19 | 2020-05-19 | Boom of work vehicle and work vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212712484U true CN212712484U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020840121.8U Active CN212712484U (en) | 2020-05-19 | 2020-05-19 | Boom of work vehicle and work vehicle |
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|---|---|
| CN (1) | CN212712484U (en) |
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- 2020-05-19 CN CN202020840121.8U patent/CN212712484U/en active Active
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