CN217152744U - Novel wet-type power output clutch structure and agricultural machine - Google Patents
Novel wet-type power output clutch structure and agricultural machine Download PDFInfo
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- CN217152744U CN217152744U CN202221079824.9U CN202221079824U CN217152744U CN 217152744 U CN217152744 U CN 217152744U CN 202221079824 U CN202221079824 U CN 202221079824U CN 217152744 U CN217152744 U CN 217152744U
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Abstract
The utility model relates to a novel wet-type power take off separation and reunion structure and agricultural machine relates to separation and reunion structure field, and the middle chamber in the cylinder body axle communicates with hydraulic pressure oil duct, lubricated oil supply duct and lubricated oil feed oil duct respectively, and lubricated piston slides and sets up in middle intracavity and separates hydraulic pressure oil duct and lubricated oil feed oil duct, and lubricated piston has the piston oil duct, and the other end and the lubricated oil supply duct intercommunication or the disconnection of lubricated piston slidable to the piston oil duct. The agricultural machine comprises a novel wet type power output clutch structure. The beneficial effects are that: when oil is fed into the hydraulic oil duct, the hydraulic oil is used for controlling power output and pushing the lubricating piston to slide to enable the piston oil duct to be communicated with the lubricating oil supply duct; when the hydraulic oil is unloaded, the power is cut off, and the lubricating oil pushes the lubricating piston to slide until the oil passage of the piston is disconnected with the lubricating oil supply passage. The lubrication function is realized directly from the structure when the power output works and the lubrication function is stopped immediately when the power output stops working. The structure is simple, and an additional electric control system is not needed.
Description
Technical Field
The utility model relates to a separation and reunion structure field, concretely relates to novel wet-type power take off separation and reunion structure and agricultural machine.
Background
At present, a power output shaft of a tractor mostly has two rotating speeds, gears need to be changed in the working process of the power output shaft, and power needs to be cut off in a non-working state. Most of the existing power output structures are controlled by a dry clutch, when gears are changed and power is cut off, a clutch control system is required to be operated, the clutch is separated to cut off power of an engine, a gear shifting handle is operated, gear rotating speed of a power output shaft is changed or power is cut off, clutch control is generally heavy, and operation efficiency is low.
In addition, the lubricating system still supplies oil continuously in a non-working state (when power output is not needed), and energy waste is large; or an additional electric control system is needed to cut off the lubricating oil way, so that the complexity of the system is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is how to cut off the lubrication when unoperated state.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a novel wet-type power output clutch structure comprises a cylinder shaft, wherein the cylinder shaft is connected with an input shaft through a clutch assembly, the cylinder shaft is provided with a clutch cavity, the clutch assembly is positioned in the clutch cavity, the novel wet-type power output clutch structure further comprises a lubricating piston, a hydraulic oil duct, a lubricating oil supply duct, an intermediate cavity and a lubricating oil inlet oil duct are arranged in the cylinder shaft, the intermediate cavity is respectively communicated with the hydraulic oil duct, the lubricating oil supply duct and the lubricating oil inlet oil duct, the hydraulic oil duct and the lubricating oil supply duct are communicated with the clutch cavity,
the lubricating piston is arranged in the middle cavity in a sliding mode and divides the hydraulic oil duct and the lubricating oil inlet oil duct, the lubricating piston is provided with a piston oil duct, one end of the piston oil duct is communicated with the lubricating oil inlet oil duct,
the lubricating piston can slide to the other end of the piston oil channel to be communicated or disconnected with the lubricating oil supply channel.
The beneficial effects of the utility model are that: when oil is fed into the hydraulic oil duct, the hydraulic oil is used for controlling power output, driving the clutch assembly to be combined and transmitting power; on the other hand, the lubricating piston is pushed to slide until the piston oil channel is communicated with the lubricating oil supply channel; when the hydraulic oil is unloaded, the power is cut off, the clutch assembly is separated, the power transmission between the cylinder shaft and the input shaft is cut off, and meanwhile, the lubricating piston is pushed by the lubricating oil to slide until the oil passage of the piston is cut off from the oil supply passage of the lubricating oil. Therefore, the lubrication function is realized directly from the structure when the power output works and the lubrication function is stopped immediately when the power output stops working. The structure is simple, and an additional electric control system is not needed.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, one end of the lubricating piston, which faces the hydraulic oil duct, is also provided with a piston limiting bulge.
The beneficial effect of adopting the further scheme is that: when the hydraulic oil is unloaded, because the piston limiting bulge exists, a gap still exists between the end wall of the lubricating piston and the end wall of the middle cavity, and the lubricating piston cannot be attached tightly. Therefore, when the next hydraulic oil is loaded, the hydraulic oil can smoothly enter the middle cavity.
Further, the clutch assembly includes clutch piston, clutch friction disc subassembly and piston reset spring, the clutch piston slide set up in the clutch cavity, and will the clutch cavity is separated for hydraulic pressure clutch chamber and lubricated clutch chamber, hydraulic pressure clutch chamber with lubricated clutch chamber respectively with the hydraulic pressure oil duct with lubricated confession oil duct intercommunication, the cylinder body axle has the spacing portion of spring, piston reset spring is located lubricated clutch intracavity, and both ends respectively with the spacing portion of spring with the clutch piston butt, the cylinder body axle passes through clutch friction disc subassembly with input shaft connects.
The beneficial effect of adopting the further scheme is that: and hydraulic oil in the hydraulic oil duct is used for driving the clutch piston to move and pressing the clutch friction plate assembly. After the hydraulic oil is unloaded, the clutch piston is reset under the action of the piston return spring.
Furthermore, the clutch friction plate assembly comprises a plurality of first clutch friction plates and a plurality of second clutch friction plates, the first clutch friction plates are located in the lubricating clutch cavity and connected with the cylinder shaft through splines, the second clutch friction plates are located in the lubricating clutch cavity and connected with the input shaft through splines, and the first clutch friction plates and the second clutch friction plates are arranged in a staggered mode.
The beneficial effect of adopting the further scheme is that: the first clutch friction plates and the second clutch friction plates transmit power when being pressed tightly, and the cylinder shaft is disconnected from the input shaft power when being released.
The clutch further comprises a spline hub, the spline hub is sleeved on the outer side of the input shaft and is in spline connection with the input shaft, and the second clutch friction plate is in spline connection with the spline hub.
The cylinder body is characterized by further comprising an output gear, wherein the output gear is rotatably sleeved on the outer side of the input shaft and is in transmission connection with the cylinder body shaft.
The beneficial effect of adopting the further scheme is that: the output gear is used for outputting power.
Further, still include the brake piston, the rotatable installation of cylinder body axle is on the casing, the casing has the brake chamber, the brake piston slide set up in the brake chamber, the brake piston slidable extremely with cylinder body axle butt or separation.
The beneficial effect of adopting the further scheme is that: after the brake hydraulic oil is loaded in the brake cavity, the brake piston is pushed to be abutted against the cylinder shaft and rubs against the cylinder shaft to brake the cylinder shaft; and unloading the brake hydraulic oil in the brake cavity, and loosening the brake piston.
And the brake piston is fixedly connected with one end of the brake piston, which faces the cylinder body shaft.
The beneficial effect of adopting the further scheme is that: the brake pads are used for contacting the cylinder shaft and performing friction braking.
The utility model also provides an agricultural machine, include a novel wet-type power take off separation and reunion structure.
Drawings
Fig. 1 is a structural diagram of a wet type power output clutch structure of the utility model;
fig. 2 is a partially enlarged view of a portion a of the novel wet type power output clutch structure shown in fig. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
1. an input shaft; 2. a splined hub; 3. a cylinder shaft; 301. a hydraulic oil passage; 302. a lubrication oil supply passage; 303. a middle cavity; 304. lubricating the oil inlet duct; 305. a hydraulic clutch cavity; 306. lubricating the clutch cavity; 4. braking the friction plate; 5. a brake piston; 6. lubricating the piston; 601. a piston oil gallery; 602. a piston limit bulge; 7. a clutch piston; 8. a first clutch disk; 9. a piston return spring; 10. a housing; 11. a brake cavity; 12. an output gear.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and fig. 2, this embodiment provides a novel wet-type power output clutch structure, which includes a cylinder shaft 3, the cylinder shaft 3 is connected to an input shaft 1 through a clutch assembly, the cylinder shaft 3 has a clutch cavity, the clutch assembly is located in the clutch cavity, the wet-type power output clutch structure further includes a lubricating piston 6, a hydraulic oil duct 301, a lubricating oil supply duct 302, an intermediate cavity 303 and a lubricating oil inlet oil duct 304 are provided in the cylinder shaft 3, the intermediate cavity 303 is respectively communicated with the hydraulic oil duct 301, the lubricating oil supply duct 302 and the lubricating oil inlet oil duct 304, the hydraulic oil duct 301 and the lubricating oil supply duct 302 are both communicated with the clutch cavity,
the lubricating piston 6 is slidably disposed in the middle cavity 303 and separates the hydraulic oil passage 301 from the lubricating oil inlet oil passage 304, the lubricating piston 6 has a piston oil passage 601, one end of the piston oil passage 601 is communicated with the lubricating oil inlet oil passage 304,
the lubricating piston 6 can slide to the other end of the piston oil channel 601 to be communicated with or disconnected from the lubricating oil supply channel 302.
As shown in fig. 1 and fig. 2, when oil is fed into the hydraulic oil duct 301, the hydraulic oil is used for controlling power output, driving the clutch assembly to be combined and transmitting power; on the other hand, the lubricating piston 6 is pushed to slide to enable the piston oil channel 601 to be communicated with the lubricating oil supply channel 302, and the lubricating oil entering from the lubricating oil inlet oil channel 304 flows to the lubricating oil supply channel 302 through the piston oil channel 601 and is conveyed to parts needing to be lubricated through the lubricating oil supply channel 302; when the hydraulic oil in the hydraulic oil duct 301 is unloaded, the power is cut off, the clutch assembly is separated, the power transmission between the cylinder shaft and the input shaft is disconnected, meanwhile, the lubricating oil pushes the lubricating piston 6 to slide to disconnect the piston oil duct 601 from the lubricating oil supply duct 302, the piston oil duct 601 is blocked by the inner wall of the middle cavity 303, and the conveying of the lubricating oil is interrupted. Therefore, the lubrication function is realized directly from the structure when the power output works and the lubrication function is stopped immediately when the power output stops working. The structure is simple, and an additional electric control system is not needed.
The hydraulic oil passage 301 and the lubrication oil supply passage 302 are used for feeding different oil liquids, and are not communicated with each other.
On the basis of the above scheme, one end of the lubricating piston 6 facing the hydraulic oil gallery 301 is further provided with a piston limiting protrusion 602.
Specifically, as shown in fig. 2, the cross-sectional dimension of the piston stopper protrusion 602 is smaller than the cross-sectional dimension of the lubricating piston 6. When the hydraulic oil is unloaded, when the left end of the piston limit bulge 602 abuts against the end wall of the middle cavity 303, an annular area is formed between the lubricating piston 6 and the left end wall of the middle cavity 303, so that a gap is formed between the end wall of the lubricating piston 6 and the end wall of the middle cavity 303, and the gap cannot be completely attached. Thus, the next time hydraulic oil is loaded, the hydraulic oil can smoothly enter the intermediate chamber 303.
On the basis of above-mentioned scheme, clutch assembly includes clutch piston 7, clutch friction disc subassembly and piston reset spring 9, clutch piston 7 slip set up in the separation and reunion intracavity, and will the separation and reunion chamber is separated for hydraulic pressure clutch chamber 305 and lubricated clutch chamber 306, hydraulic pressure clutch chamber 305 with lubricated clutch chamber 306 respectively with hydraulic pressure oil duct 301 with lubricated confession oil duct 302 intercommunication, cylinder shaft 3 has the spacing portion of spring, piston reset spring 9 is located in lubricated clutch chamber 306, and both ends respectively with the spacing portion of spring with clutch piston 7 butt, cylinder shaft 3 passes through clutch friction disc subassembly with input shaft 1 connects.
The hydraulic oil of the hydraulic oil passage 301 is used for driving the movement of the clutch piston 7 and pressing the clutch friction plate assembly. After the hydraulic oil is unloaded, the clutch piston 7 is reset under the action of the piston return spring 9 and the clutch friction plate assembly is released. The lubrication supply channel 302 lubricates the parts within the lubrication clutch cavity 306.
On the basis of the scheme, the clutch friction plate assembly comprises a plurality of first clutch friction plates 8 and a plurality of second clutch friction plates, the first clutch friction plates 8 are located in the lubricating clutch cavity 306 and are in splined connection with the cylinder shaft 3, the second clutch friction plates are located in the lubricating clutch cavity 306 and are in splined connection with the input shaft 1, and the plurality of first clutch friction plates 8 and the plurality of second clutch friction plates are arranged in a staggered mode.
The first clutch disk 8 is axially movable along the cylinder shaft 3, the second clutch disk is axially movable along the input shaft 1, and the cylinder shaft 3 is coaxially disposed with the input shaft 1. The end of the lubricated clutch chamber 306 remote from the clutch piston 7 has an end wall which serves to limit the axial position of the first and second pluralities of clutch discs 8, 7. The first clutch disk 8 and the second clutch disk transmit power when pressed tightly, and the cylinder shaft 3 is disconnected from the input shaft 1 when released.
A friction plate return spring is further arranged between two adjacent first clutch friction plates 8 or between two adjacent second clutch friction plates, and after the clutch piston 7 is reset, the friction plate return spring enables the two adjacent first clutch friction plates 8 or the two adjacent second clutch friction plates to recover the initial spacing distance.
On the basis of the scheme, the clutch device further comprises a spline hub 2, the spline hub 2 is sleeved on the outer side of the input shaft 1 and is in spline connection with the input shaft 1, and the second clutch friction plate is in spline connection with the spline hub 2.
On the basis of the scheme, the cylinder body further comprises an output gear 12, the output gear 12 is rotatably sleeved on the outer side of the input shaft 1, and the output gear 12 is in transmission connection with the cylinder body shaft 3.
The output gear 12 is used for outputting power. Specifically, as shown in fig. 1, the output gear 12 is rotatably fitted around the outside of the input shaft 1 via a needle bearing, and the output gear 12 is spline-connected to the cylinder shaft 3 to transmit power.
On the basis of the scheme, the brake device further comprises a brake piston 5, the cylinder shaft 3 is rotatably installed on a machine shell 10, the machine shell 10 is provided with a brake cavity 11, the brake piston 5 is arranged in the brake cavity 11 in a sliding mode, and the brake piston 5 can be in butt joint with or separated from the cylinder shaft 3 in a sliding mode.
After the brake cavity 11 is loaded with brake hydraulic oil, the brake piston 5 is pushed to abut against the cylinder body shaft 3 and rubs against the cylinder body shaft 3 to brake the cylinder body shaft; the brake hydraulic oil in the brake cavity 11 is unloaded, and the brake piston 5 is released.
The brake cavity 11 is used for entering brake hydraulic oil, and the brake cavity 11 and the hydraulic oil duct 301 are supplied with oil through different pipelines.
On the basis of the scheme, the brake device further comprises a brake friction plate 4, and the brake friction plate 4 is fixedly connected with one end, facing the cylinder body shaft 3, of the brake piston 5.
The brake pads 4 are used to contact the cylinder shaft 3 and to frictionally brake. Preferably, the brake friction plate 4 comprises an elastic block and a brake block which are fixedly connected, the brake piston 5, the elastic block and the brake block are sequentially connected, the brake block is used for being abutted against the cylinder shaft 3 for braking, and after brake hydraulic oil in the brake cavity 11 is unloaded, the brake piston 5 can be quickly reset under the elastic force action of the elastic block.
In one embodiment, the working process of the novel wet-type power output clutch structure is as follows:
as shown in fig. 1 and 2, after the agricultural machine is started, the input shaft 1 starts to drive the spline hub 2 to idle, when power output is required, hydraulic oil enters the hydraulic oil channel 301 to push the clutch piston 7 to overcome the piston return spring 9 to move, the first clutch friction plate 8 and the second clutch friction plate are compacted and combined, at the moment, the spline hub 2 drives the cylinder shaft 3 to rotate, and power is transmitted to the output shaft through the transmission structures such as the output gear 12 and the like; meanwhile, the hydraulic oil pushes the lubricating piston 6 to move rightward, the lubricating oil inlet oil duct 304, the piston oil duct 601 and the lubricating oil supply duct 302 are sequentially communicated, and lubricating oil enters the lubricating oil supply duct 302 to lubricate corresponding parts.
When power output is required and the work is stopped, hydraulic oil is unloaded, the piston return spring 9 pushes the clutch piston 7 to return, the first clutch friction plate 8 and the second clutch friction plate are loosened, and power transmission is released. At this time, the brake hydraulic oil enters the brake cavity 11, and the brake piston 5 compacts and combines the brake friction plate 4 and the cylinder shaft 3, so that the cylinder shaft 3 is rapidly braked to stop rotating. Meanwhile, lubricating oil pushes the lubricating piston 6 to move leftwards, the piston oil channel 601 on the lubricating piston 6 is sealed by the inner wall of the middle cavity 303, the lubricating oil is blocked from flowing continuously, and the functions of lubricating when power output works and stopping lubricating immediately when the power output works are directly realized structurally.
The utility model also provides an agricultural machine, include a novel wet-type power take off separation and reunion structure. The agricultural machine can be a tractor, a harvester and other agricultural machines in various forms.
In the description of the present invention, it should be noted that the terms "left", "right", "inside", "outside", "axial", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used 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 defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The novel wet-type power output clutch structure comprises a cylinder shaft (3), wherein the cylinder shaft (3) is connected with an input shaft (1) through a clutch assembly, the cylinder shaft (3) is provided with a clutch cavity, the clutch assembly is positioned in the clutch cavity, the novel wet-type power output clutch structure is characterized by further comprising a lubricating piston (6), a hydraulic oil duct (301), a lubricating oil supply duct (302), an intermediate cavity (303) and a lubricating oil inlet oil duct (304) are arranged in the cylinder shaft (3), the intermediate cavity (303) is respectively communicated with the hydraulic oil duct (301), the lubricating oil supply duct (302) and the lubricating oil inlet oil duct (304), the hydraulic oil duct (301) and the lubricating oil supply duct (302) are communicated with the clutch cavity,
the lubricating piston (6) is arranged in the middle cavity (303) in a sliding mode and divides the hydraulic oil duct (301) and the lubricating oil inlet oil duct (304), the lubricating piston (6) is provided with a piston oil duct (601), one end of the piston oil duct (601) is communicated with the lubricating oil inlet oil duct (304),
the lubricating piston (6) can slide to the other end of the piston oil channel (601) to be communicated or disconnected with the lubricating oil supply channel (302).
2. The new wet pto clutch structure according to claim 1, wherein the end of the lubrication piston (6) facing the hydraulic oil gallery (301) further has a piston limit protrusion (602).
3. The novel wet power output clutch structure as claimed in claim 1, the clutch assembly comprises a clutch piston (7), a clutch friction plate assembly and a piston return spring (9), the clutch piston (7) is arranged in the clutch cavity in a sliding mode, and divides the clutch chamber into a hydraulic clutch chamber (305) and a lubricating clutch chamber (306), the hydraulic clutch cavity (305) and the lubricating clutch cavity (306) are respectively communicated with the hydraulic oil channel (301) and the lubricating oil supply channel (302), the cylinder shaft (3) is provided with a spring limiting part, the piston return spring (9) is positioned in the lubricating clutch cavity (306), and two ends of the cylinder body shaft are respectively abutted against the spring limiting part and the clutch piston (7), and the cylinder body shaft (3) is connected with the input shaft (1) through the clutch friction plate assembly.
4. A new wet pto clutch configuration according to claim 3, characterized in that the clutch disk assembly comprises a plurality of first clutch disks (8) and a plurality of second clutch disks, the first clutch disks (8) being located in the lubrication clutch cavity (306) and splined to the cylinder shaft (3), the second clutch disks being located in the lubrication clutch cavity (306) and splined to the input shaft (1), the plurality of first clutch disks (8) and the plurality of second clutch disks being staggered.
5. The novel wet power output clutch structure according to claim 4, characterized by further comprising a spline hub (2), wherein the spline hub (2) is sleeved outside the input shaft (1) and is in splined connection with the input shaft (1), and the second clutch friction plate is in splined connection with the spline hub (2).
6. A new wet type power output clutch structure according to claim 3, characterized by further comprising an output gear (12), wherein the output gear (12) is rotatably sleeved outside the input shaft (1), and the output gear (12) is in transmission connection with the cylinder shaft (3).
7. A novel wet power take-off clutch structure as claimed in any one of claims 1 to 6, further comprising a brake piston (5), wherein the cylinder shaft (3) is rotatably mounted on a housing (10), the housing (10) has a brake chamber (11), the brake piston (5) is slidably disposed in the brake chamber (11), and the brake piston (5) is slidably connected to or disconnected from the cylinder shaft (3).
8. A new wet pto clutch configuration according to claim 7, further comprising a brake pad (4), wherein the brake pad (4) is fixedly connected to the end of the brake piston (5) facing the cylinder shaft (3).
9. An agricultural machine comprising a novel wet pto clutch configuration of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221079824.9U CN217152744U (en) | 2022-05-07 | 2022-05-07 | Novel wet-type power output clutch structure and agricultural machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221079824.9U CN217152744U (en) | 2022-05-07 | 2022-05-07 | Novel wet-type power output clutch structure and agricultural machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217152744U true CN217152744U (en) | 2022-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221079824.9U Active CN217152744U (en) | 2022-05-07 | 2022-05-07 | Novel wet-type power output clutch structure and agricultural machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217152744U (en) |
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- 2022-05-07 CN CN202221079824.9U patent/CN217152744U/en active Active
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: Weichai leiwo Heavy Industry Co.,Ltd. |