CN217445863U - Grain unloading clutch mechanism and harvester - Google Patents
Grain unloading clutch mechanism and harvester Download PDFInfo
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- CN217445863U CN217445863U CN202221619555.0U CN202221619555U CN217445863U CN 217445863 U CN217445863 U CN 217445863U CN 202221619555 U CN202221619555 U CN 202221619555U CN 217445863 U CN217445863 U CN 217445863U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/51—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for storing agricultural or horticultural products
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Abstract
The utility model discloses an unload grain clutching mechanism and harvester, it includes the pole setting to unload grain clutching mechanism, from the driving wheel, driving belt, the clutch belt pulley, electronic jacking piece, force sensor and controller, the vertical setting of pole setting is at the rear of action wheel on the engine, install in the pole setting from the driving wheel rotation, it is used for being connected with the power input detachable transmission of auger on the grain tank, the clutch belt pulley rotates the drive end of installing at electronic jacking piece, force sensor installs on electronic jacking piece, and the clutch belt pulley is located the action wheel and follows between the driving wheel, and the action wheel, from the coplane of driving wheel and clutch belt pulley three, the loose cover of driving belt is established at the action wheel and is followed the driving wheel, and driving belt's lower extreme is put on the clutch belt pulley, electronic jacking piece and force sensor all are connected with the controller electricity, its intelligent degree is high.
Description
Technical Field
The utility model belongs to the harvester field especially relates to a unload grain clutching mechanism and harvester.
Background
Taking a crawler-type harvester as an example, a grain tank and a threshing machine body of the crawler-type harvester are generally arranged in a longitudinal tandem manner, an auger is longitudinally arranged in the grain tank, the auger needs to be in transmission connection with an engine of the harvester through a transmission belt, a grain unloading clutch mechanism is arranged at the position of the transmission belt and controls the transmission connection or disconnection of the transmission belt and a driven wheel at the end of the auger (see CN215122148U a harvester grain tank transmission mechanism and a harvester formed by the same) in a transmission way, but because the clutch belt is made of rubber materials, deformation and stretching inevitably occur along with the extension of working time, the transmission capacity of the working part is weakened after stretching, the belt slides relative to the working part and rubs to cause the temperature of the belt to rise, and further the service life of the belt is shortened.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a simple structure, and degree of automation is high, can adjust the grain clutching mechanism that unloads of driving belt tension degree by oneself.
In order to achieve the above purpose, the technical solution of the present invention is as follows: a grain unloading clutch mechanism comprises a vertical rod, a driven wheel, a transmission belt, a clutch belt pulley, an electric jacking piece, a tension sensor and a controller, wherein the vertical rod is vertically arranged at the rear part of a driving wheel on an engine, the driven wheel is rotatably arranged on the vertical rod and is used for being in transmission connection with a power input end of an auger on a grain tank in a detachable mode, the clutch belt pulley is rotatably arranged at a driving end of the electric jacking piece, the tension sensor is arranged on the electric jacking piece, the clutch belt pulley is located between the driving wheel and the driven wheel, the driving wheel, the driven wheel and the clutch belt pulley are coplanar, the transmission belt is loosely sleeved on the driving wheel and the driven wheel, the lower end of the transmission belt is placed on the clutch belt pulley, the electric jacking piece is used for driving the clutch belt pulley to move upwards so that the transmission belt can be tensioned and can be in transmission connection with the driving wheel, or the clutch belt pulley is driven to move downwards to reset so as to disconnect the transmission connection between the driving wheel and the driven wheel, and the electric jacking piece and the tension sensor are electrically connected with the controller.
The beneficial effects of the above technical scheme are that: so can set for the pulling force threshold value on the controller in advance, and make the jacking piece drive clutch pulley rebound extremely makes during action wheel and the driving belt tensioning from between the driving wheel, can respond to the pulling force size that the jacking piece bore by force sensor this moment, when the pulling force that if force sensor responds to is less than the pulling force threshold value, the steerable jacking piece of controller this moment continues to drive clutch pulley rebound to make driving belt rate of tension further improve, the pulling force value that senses until force sensor reaches the pulling force threshold value.
In the technical scheme, the electric jacking piece comprises a swing rod, an electric telescopic piece and an operating mechanism, the swing rod is arranged on one side of the driven wheel in the front-back direction, the rear end of the swing rod is connected with the vertical swinging of the vertical rod, the clutch belt pulley is rotatably arranged at the front end of the swing rod, the operating mechanism is arranged on the front side of the grain tank and is connected with one end of the electric telescopic piece through a spring, the other end of the electric telescopic piece is connected with the swing rod, the tension sensor is arranged at the joint of the electric telescopic piece and the swing rod, the operating mechanism is used for driving the swing rod to swing up and down through the electric telescopic piece so as to drive the clutch belt pulley to move up and down, and the electric telescopic piece is electrically connected with the controller.
The beneficial effects of the above technical scheme are that: its simple structure, wherein operating mechanism is used for the manual operation so that the pendulum rod upwards swings the commentaries on classics and keep off or swing down and be in the separation and reunion fender with being in combining, if operating mechanism is in when combining the fender, when force sensor sensed the pulling force value and is less than the pulling force threshold value, controller control electric telescopic part shrink so that the pendulum rod continues to swing upwards and change this moment, until the pulling force value that force sensor sensed reaches the pulling force threshold value, and when operating mechanism was in the separation and reunion fender, controller control electric telescopic part extension reset.
In the technical scheme, the electric telescopic piece is an electric push rod.
The beneficial effects of the above technical scheme are that: the structure is simple.
Still include position sensor among the above-mentioned technical scheme, position sensor sets up on the pole setting, position sensor with the controller electricity is connected, position sensor is used for responding to the position of pendulum rod is in the separation and reunion fender or combines the fender.
The beneficial effects of the above technical scheme are that: therefore, the position sensor can sense that the clutch pulley is in the combined gear or the clutch gear according to the position state of the swing rod.
In the technical scheme, the operating mechanism comprises a rocker and a limiting rod, a pin shaft is vertically arranged on the front side of the grain box along the front-back direction, the middle of the rocker is vertically and rotatably connected with the pin shaft, the upper end of the spring is connected with one end of the rocker, the other end of the rocker is a handle end, the rocker is shaken to enable the spring and the electric telescopic piece to jointly drive the rocker to swing up and down, the limiting rod is arranged at the front end of the grain box and located at a swinging track of the handle end of the rocker, the handle end of the rocker swings downwards under the manual action to be connected with the lower end of the limiting rod in a hanging mode and drives the rocker to swing upwards, or the handle end of the rocker is manually disconnected to enable the rocker to swing downwards under the gravity action to be reset.
The beneficial effects of the above technical scheme are that: the structure is simple, and the use is convenient.
In the technical scheme, the position sensor is a proximity switch or a travel switch.
The beneficial effects of the above technical scheme are that: the sensitivity is high.
In the technical scheme, the controller is also electrically connected with the ECU of the harvester.
The beneficial effects of the above technical scheme are that: therefore, when the operating mechanism is in the combined gear and the electric telescopic piece contracts to the shortest extent, the tension value measured by the tension sensor is still smaller than the tension threshold value, the transmission belt needs to be replaced, and the controller controls the ECU to send out a corresponding prompt through the center console of the harvester.
Still including set up in among the above-mentioned technical scheme revolution speed sensor on the pole setting, revolution speed sensor with the controller electricity is connected, revolution speed sensor is used for measuring the rotational speed of following the driving wheel.
The beneficial effects of the above technical scheme are that: so can come to monitor the rotational speed from the driving wheel by speed sensor, and adjust driving belt's rate of tension according to the rotational speed from the driving wheel by the controller, accessible controller presets the rotational speed threshold value from the driving wheel this moment, if operating mechanism is in when combining the fender, the rotational speed from the driving wheel does not reach the rotational speed threshold value, can control electronic extensible member shrink by the controller this moment so that driving belt further tensioning, wherein, the tensile value of rotational speed threshold value and tensile force threshold value alternative conduct regulation mark, only one reaches corresponding threshold value as long as the tensile value that tension sensor surveyed and the rotational speed value that speed sensor surveyed when adjusting driving belt's the rate of tension promptly for electric jacking piece.
In the technical scheme, the controller is an arm series single chip microcomputer.
The beneficial effects of the above technical scheme are that: the structure is simple and the cost is low.
The second purpose of the utility model is to provide a harvester comprising the grain unloading clutch mechanism.
The beneficial effects of the above technical scheme are that: its degree of automation is high, and but the rate of tension of automatically regulated driving belt to make the grain tank auger be in the operating condition of preferred, it can also monitor driving belt by oneself in addition and whether need change and send corresponding suggestion when needing to change.
Drawings
FIG. 1 is a schematic view of the grain unloading clutch mechanism of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of an operating mechanism according to embodiment 1 of the present invention;
fig. 3 is an electrical connection diagram of the controller according to embodiment 1 of the present invention.
In the figure: the device comprises a vertical rod 1, a driven wheel 2, a transmission belt 3, a clutch belt pulley 4, a swing rod 51, an electric telescopic piece 52, an operating mechanism 53, a rocker 531, a limiting rod 532, a pin shaft 533, a spring 54, a tension sensor 6, a controller 7, a rotating speed sensor 8, a driving wheel 9 and a position sensor 10.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
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 by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
The embodiment provides a grain unloading clutch mechanism, which comprises a vertical rod 1, a driven wheel 2, a transmission belt 3, a clutch belt pulley 4, an electric jacking piece, a tension sensor 6 and a controller 7, wherein the vertical rod 1 is vertically arranged at the rear part of a driving wheel 9 on an engine, the driven wheel 2 is rotatably arranged on the vertical rod 1 and is used for being in transmission connection with a detachable power input end of an auger on a grain tank, the clutch belt pulley 4 is rotatably arranged at a driving end of the electric jacking piece, the tension sensor 6 is arranged on the electric jacking piece, the clutch belt pulley 4 is positioned between the driving wheel 9 and the driven wheel 2, the driving wheel 9, the driven wheel 2 and the clutch belt pulley 4 are coplanar, the transmission belt 3 is loosely sleeved on the driving wheel 9 and the driven wheel 2, the lower end of the transmission belt 3 is placed on the clutch belt pulley 4, the electric jacking part is used for driving the clutch belt pulley 4 to move upwards so as to enable the transmission belt 3 to be tensioned and the driven wheel 2 to be in transmission connection with the driving wheel 9, or driving the clutch belt pulley 4 to move downwards to reset so as to disconnect the transmission connection between the driving wheel 9 and the driven wheel 2, the electric jacking part and the tension sensor 6 are both electrically connected with the controller 7, so that a tension threshold value can be preset on the controller in advance, the jacking part drives the clutch belt pulley to move upwards so as to enable the transmission belt between the driving wheel 9 and the driven wheel to be tensioned, the tension sensor can sense the tension borne by the jacking part, and if the tension sensed by the tension sensor is smaller than the tension threshold value, the controller can control the jacking part to continue to drive the clutch belt pulley to move upwards, so that the tension degree of the transmission belt is further improved, until the tension value sensed by the tension sensor reaches the tension threshold value.
In the technical scheme, the electric jacking part comprises a swing rod 51, an electric telescopic part 52 and an operating mechanism 53, the swing rod 51 is arranged on one side of the driven wheel 2 along the front-back direction, the rear end of the swing rod is vertically swung and rotated with the vertical rod 1, the clutch belt pulley 4 is rotatably installed at the front end of the swing rod 51, the operating mechanism 53 is installed on the front side of the grain tank, the operating mechanism 53 is connected with one end of the electric telescopic part 52 through a spring 54, the other end of the electric telescopic part 52 is connected with the swing rod 51, the tension sensor 6 is installed at the connection part of the electric telescopic part 52 and the swing rod 51, the operating mechanism 53 is used for driving the swing rod 51 to swing up and down through the electric telescopic part 52 so as to drive the clutch belt pulley 4 to move up and down, and the electric telescopic part 52 is electrically connected with the controller 7, its simple structure, wherein operating mechanism is used for the manual operation so that the pendulum rod upwards swings the commentaries on classics and keep off or swing down and be in the separation and reunion fender with being in combining, if operating mechanism is in when combining the fender, when force sensor sensed the pulling force value and is less than the pulling force threshold value, controller control electric telescopic part shrink so that the pendulum rod continues to swing upwards and change this moment, until the pulling force value that force sensor sensed reaches the pulling force threshold value, and when operating mechanism was in the separation and reunion fender, controller control electric telescopic part extension reset. Of course, the tension sensor may be installed at the axle of the clutch pulley.
In the above technical solution, the electric telescopic part 52 is an electric push rod, and the structure is simple.
The technical scheme includes that the clutch device further comprises a position sensor 10, the position sensor 10 is arranged on the vertical rod 1, the position sensor 10 is electrically connected with the controller 7, and the position sensor 10 is used for sensing that the position of the swing rod 51 is in a clutch gear or a combined gear, so that the position sensor can sense that the clutch belt pulley is in the combined gear (namely, the swing rod swings upwards to the clutch belt pulley to enable the clutch belt to be tightened) or the clutch gear (namely, the swing rod swings downwards to the clutch belt pulley to reset and enable the clutch belt to be in a loose state) according to the position state of the swing rod. The position sensor can be arranged below a swing track of the swing rod, when the swing rod swings downwards to reset, the position sensor senses a position signal of the swing rod, the clutch belt pulley is in a clutch gear at the moment, when the position sensor swings upwards to keep away from the position sensor, the position sensor does not sense the swing rod signal at the moment, and the clutch belt pulley is in a combined gear.
In the above technical solution, the operating mechanism 53 includes a rocker 531 and a limiting rod 532, the front side of the grain tank is vertically provided with a pin 533 along the front-back direction, the middle part of the rocker 531 is vertically and rotatably connected with the pin 533 (meanwhile, the rocker can also swing back and forth at a small angle relative to the pin, that is, the middle part of the rocker is provided with a shaft hole for the pin to pass through, the hole diameter of the shaft hole is larger than the diameter of the pin, so that the rocker has the allowance of space for swinging back and forth, one end of the pin away from the grain tank has a large part for preventing the rocker from falling off the pin, the upper end of the spring 54 is connected with one end of the rocker 531, the other end of the rocker 531 is a handle end, the rocker 531 is swung so that the spring 54 and the electric telescopic member 52 jointly drive the rocker 51 to swing up and down, the limiting rod 532 is arranged at the front end of the grain tank and located at the swinging track 531 of the handle end of the rocker 531, the handle end of the rocker 531 is manually swung downwards to be hung at the lower end of the limiting rod 532 and drives the swing rod 51 to swing upwards, or the handle end of the rocker 531 is manually unhooked so that the swing rod 51 swings downwards under the action of gravity to reset (when the rocker is hooked with or unhooked from the limiting rod, the swing rod needs to swing back and forth at a small angle to avoid the limiting rod).
In the above technical solution, the position sensor 10 is a proximity switch or a travel switch, and has high sensitivity.
In the technical scheme, the controller 7 is also electrically connected with the ECU of the harvester, so that when the operating mechanism is in the combined gear and the electric telescopic part is contracted to the shortest length, the tension value measured by the tension sensor is still smaller than the tension threshold value, the driving belt needs to be replaced, and the ECU is controlled by the controller to send out a corresponding prompt through the center console of the harvester.
The technical proposal also comprises a rotating speed sensor 8 arranged on the upright stanchion 1, the rotating speed sensor 8 is electrically connected with the controller 7, the rotational speed sensor 8 is arranged to measure the rotational speed of the driven wheel 2, so that the rotational speed of the driven wheel can be monitored by the rotational speed sensor, the tension degree of the transmission belt is adjusted by the controller according to the rotating speed of the driven wheel, the rotating speed threshold value of the driven wheel can be preset by the controller, if the control mechanism is in the combined gear, the rotating speed of the driven wheel does not reach a rotating speed threshold value, the controller can control the electric telescopic piece to contract so as to further tension the transmission belt, wherein the rotating speed threshold value and the tension threshold value can be selected as adjusting targets, that is, the electric jacking part only needs one of the tension value measured by the tension sensor and the rotating speed value measured by the rotating speed sensor to reach the corresponding threshold value when the tension progress of the transmission belt is adjusted.
In the technical scheme, the controller 7 is an arm series single chip microcomputer, the structure is simple, the cost is low, and the controller 7 can be arranged in a cockpit.
Because the threshing clutch mechanism, the harvesting clutch mechanism and the grain unloading clutch mechanism of the harvester are similar in structure, the grain unloading clutch mechanism can be transferred to the threshing clutch mechanism and the harvesting clutch mechanism by a person skilled in the art.
Example 2
This embodiment provides a harvester including unloading grain clutching mechanism as embodiment 1, this harvester degree of automation is high, and can automatically regulated drive belt's rate of tension to make the grain tank auger be in the operating condition of preferred, it can also monitor by oneself whether drive belt needs to be changed in addition and send corresponding suggestion when needing to change.
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 (10)
1. The grain unloading clutch mechanism is characterized by comprising a vertical rod (1), a driven wheel (2), a transmission belt (3), a clutch belt pulley (4), an electric jacking piece, a tension sensor (6) and a controller (7), wherein the vertical rod (1) is vertically arranged behind a driving wheel (9) on an engine, the driven wheel (2) is rotatably arranged on the vertical rod (1) and is used for being in detachable transmission connection with a power input end of an auger on a grain tank, the clutch belt pulley (4) is rotatably arranged at a driving end of the electric jacking piece, the tension sensor (6) is arranged on the electric jacking piece, the clutch belt pulley (4) is positioned between the driving wheel (9) and the driven wheel (2), the driving wheel (9), the driven wheel (2) and the clutch belt pulley (4) are coplanar, the transmission belt (3) is loosely sleeved on the driving wheel (9) and the driven wheel (2), and the lower extreme of driving belt (3) is put on clutch pulley (4), electronic jacking piece is used for the drive clutch pulley (4) rebound so that driving belt (3) tensioning will from driving wheel (2) and action wheel (9) transmission connection, or the drive clutch pulley (4) rebound to reset with break off transmission connection between action wheel (9) and the follow driving wheel (2), electronic jacking piece and force transducer (6) all with controller (7) electricity is connected.
2. The grain unloading clutch mechanism according to claim 1, wherein the electric jacking piece comprises a swing rod (51), an electric telescopic piece (52) and an operating mechanism (53), the swing rod (51) is arranged on one side of the driven wheel (2) in the front-back direction, the rear end of the swing rod is vertically swung and rotated with the vertical rod (1), the clutch belt pulley (4) is rotatably installed at the front end of the swing rod (51), the operating mechanism (53) is installed on the front side of the grain tank, the operating mechanism (53) is connected with one end of the electric telescopic piece (52) through a spring (54), the other end of the electric telescopic piece (52) is connected with the swing rod (51), the tension sensor (6) is installed at the joint of the electric telescopic piece (52) and the swing rod (51), and the operating mechanism (53) is used for driving the swing rod (51) to swing up and down through the electric telescopic piece (52) so as to drive the clutch leather to be driven to swing up and down The belt wheel (4) moves up and down, and the electric telescopic piece (52) is electrically connected with the controller (7).
3. The grain unloading clutch mechanism as claimed in claim 2, wherein the electric telescopic part (52) is an electric push rod.
4. The grain unloading clutch mechanism according to claim 2, characterized by further comprising a position sensor (10), wherein the position sensor (10) is arranged on the vertical rod (1), the position sensor (10) is electrically connected with the controller (7), and the position sensor (10) is used for sensing the position of the swing rod (51) to be in a clutch gear or a combination gear.
5. The grain unloading clutch mechanism according to claim 4, characterized in that the operating mechanism (53) comprises a rocker (531) and a limiting rod (532), a pin (533) is vertically arranged on the front side of the grain tank along the front-back direction, the middle part of the rocker (531) is vertically and rotatably connected with the pin (533), the upper end of the spring (54) is connected with one end of the rocker (531), the other end of the rocker (531) is a handle end, the rocker (531) is swung so that the spring (54) and the electric telescopic part (52) drive the swing rod (51) to swing up and down, the limiting rod (532) is arranged at the front end of the grain tank and located at the swinging track of the handle end of the rocker (531), the handle end of the rocker (531) swings downwards under the artificial action to be hung at the lower end of the limiting rod (532), and the swing rod (51) is driven to swing upwards, or the handle end of the rocker (531) is manually unhooked, so that the swing rod (51) swings downwards under the action of gravity until the swing rod is reset.
6. A grain unloading clutch mechanism according to claim 5, characterized in that the position sensor (10) is a proximity switch or a travel switch.
7. A grain unloading clutch mechanism according to claim 5, characterized in that the controller (7) is also electrically connected with the ECU of the harvester.
8. The grain unloading clutch mechanism according to claim 5, further comprising a rotation speed sensor (8) disposed on the vertical rod (1), wherein the rotation speed sensor (8) is electrically connected to the controller (7), and the rotation speed sensor (8) is used for measuring the rotation speed of the driven wheel (2).
9. A grain unloading clutch mechanism as claimed in any one of claims 1 to 8, characterized in that the controller (7) is an arm series single-chip microcomputer.
10. A harvester comprising a grain unloading clutch mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221619555.0U CN217445863U (en) | 2022-06-27 | 2022-06-27 | Grain unloading clutch mechanism and harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221619555.0U CN217445863U (en) | 2022-06-27 | 2022-06-27 | Grain unloading clutch mechanism and harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217445863U true CN217445863U (en) | 2022-09-20 |
Family
ID=83239531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221619555.0U Active CN217445863U (en) | 2022-06-27 | 2022-06-27 | Grain unloading clutch mechanism and harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217445863U (en) |
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2022
- 2022-06-27 CN CN202221619555.0U patent/CN217445863U/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. |
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| CP01 | Change in the name or title of a patent holder |