CN113931984A - Large silage harvester header transmission and transmission method thereof - Google Patents

Large silage harvester header transmission and transmission method thereof Download PDF

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Publication number
CN113931984A
CN113931984A CN202111291553.3A CN202111291553A CN113931984A CN 113931984 A CN113931984 A CN 113931984A CN 202111291553 A CN202111291553 A CN 202111291553A CN 113931984 A CN113931984 A CN 113931984A
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China
Prior art keywords
gear
meshed
shaft
radial
core body
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Granted
Application number
CN202111291553.3A
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Chinese (zh)
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CN113931984B (en
Inventor
蒋延金
汤生宝
裴丽君
李凯
李学永
郑绍成
陈永生
韩柏和
高强
李蓉蓉
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Tangshan Xinpu Machinery Manufacturing Co ltd
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Tangshan Xinwanda Industrial Co ltd
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Priority to CN202111291553.3A priority Critical patent/CN113931984B/en
Publication of CN113931984A publication Critical patent/CN113931984A/en
Application granted granted Critical
Publication of CN113931984B publication Critical patent/CN113931984B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/038—Gearboxes for accommodating bevel gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0417—Heat exchangers adapted or integrated in the gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload
    • F16H2035/103—Arrangements or devices for absorbing overload or preventing damage by overload with drive interruption by structural failure of overload preventing means, e.g. using shear pins

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Retarders (AREA)

Abstract

The invention relates to a large-scale silage harvester header transmission and a transmission method thereof, and belongs to the technical field of transmissions. The technical scheme is as follows: a second bevel gear (13) and a helical gear (14) which are coaxially arranged are arranged on the input shaft (2), the second bevel gear (13) is meshed with the first bevel gear (12), and the upper end of the gear shaft (11) is in transmission connection with the planetary gear set through an oil-immersed spring radial pin overload protection device (3); the torsion helical gear (10), the radial core body (19) and the driving core body are sleeved in sequence from outside to inside; the outer teeth of the torsion helical gear are meshed with the gear part at the upper end of the gear shaft, and the torsion helical gear is connected with the radial core body through a torsion spring; the helical gear is meshed with the intermediate gear, and the intermediate gear is meshed with the hollow gear. The invention effectively solves the problem of damage to the speed changer and the transmission mechanism when the feeding roller is blocked and overloaded, and prolongs the service life of the speed changer; under the condition that only one power source is input, bidirectional output of different rotating speeds is realized.

Description

Large silage harvester header transmission and transmission method thereof
Technical Field
The invention relates to a large-scale silage harvester header transmission and a transmission method thereof, and belongs to the technical field of transmissions.
Background
In the ensiling harvesting process, the header harvests crop straws and conveys the crop straws to a subsequent device for chopping and throwing, wherein the conveying operation is completed by a feeding roller. In the prior art, different power sources are often provided for a header transmission to realize the differential rotation of a feeding roller and a cutter, and the header transmission for driving the feeding roller to rotate cannot provide overload protection, so that the transmission and a transmission mechanism are often damaged, especially the condition of gear failure and the like occurs.
Therefore, a cutting table transmission which has a compact structure and can provide overload protection needs to be designed, so that the working efficiency is improved, and the service life is prolonged.
The existing overload protection method for the cutting table transmission of the silage harvester comprises the following steps: the transmission is enabled to slip through the overload protection of the friction plate or the tightness adjustment of the V-belt, so that the protection effect is achieved. The existing harvester header speed changer for silage has the following defects: firstly, manufacturing cost is high, and life cycle is short, the maintenance of not being convenient for, and the transmission efficiency is low.
Disclosure of Invention
The invention aims to provide a large-scale silage harvester header speed changer and a transmission method thereof, wherein an oil-immersed spring radial pin overload protection device is arranged in the speed changer, so that the damage to the speed changer and a transmission mechanism when a feeding roller is blocked and overloaded is effectively solved, the speed changer is compact in structure, high in transmission efficiency, convenient to maintain, long in service life and free of regular maintenance. Through setting up two-way power take off's derailleur, make the header only need a power supply can accomplish whole operations, under the prerequisite that satisfies the operating efficiency, can practice thrift manufacturing cost, reduce the power loss, solve the above-mentioned problem that the background art exists.
The technical scheme of the invention is as follows:
a cutting table transmission of a large silage harvester comprises a shell, an input shaft, an oil-immersed spring radial pin overload protection device, a planetary wheel set, an output shaft, a gear shaft, a first bevel gear, a second bevel gear, a helical gear, an intermediate gear and a hollow gear;
the input shaft is arranged on the shell, a second bevel gear and a helical gear which are coaxially arranged are arranged on the input shaft, the second bevel gear and the helical gear are connected with the input shaft through splines, the second bevel gear is meshed with the first bevel gear, the first bevel gear is connected with a gear shaft through splines, and the upper end of the gear shaft is in transmission connection with the planetary gear set through an oil-immersed spring radial pin overload protection device;
the overload protection device for the oil-immersed spring radial pin comprises a torsion helical gear, a torsion spring, a radial core body and a driving core body, wherein the torsion helical gear, the radial core body and the driving core body are sequentially sleeved from outside to inside, and an inner ring of the radial core body is meshed with the driving core body; the outer teeth of the torsion helical gear are meshed with the gear part at the upper end of the gear shaft, and the torsion helical gear is connected with the radial core body through a torsion spring;
the planetary wheel set comprises a sun wheel, a planet carrier, planet shafts, planet wheels and an inner gear ring, the sun wheel is arranged on the driving core body and is coaxially arranged with the torsion helical gear and the radial core body, the planet wheels are meshed at the outer side of the sun wheel, the planet wheels are respectively arranged on the corresponding planet shafts, the end parts of the planet shafts are arranged on the planet carrier, the outer ring of the inner gear ring is fixed on the shell, the inner gear of the inner gear ring is meshed with the planet wheels, and the planet carrier is connected with one end of the output shaft;
the helical gear is meshed with the intermediate gear, and the intermediate gear is meshed with the hollow gear.
A plurality of grooves are uniformly formed in the inner ring side of the torsion helical gear, spring grooves matched with the trapezoidal grooves one by one are formed in the outer ring of the radial core body, one end of a torsion spring is fixed to the bottom of the spring groove, the other end of the torsion spring is sleeved with a radial driving spring sleeve, and the radial driving spring sleeve is tightly propped in the grooves of the torsion helical gear.
The groove is an isosceles trapezoid groove.
And a flange plate is arranged at the other end of the output shaft.
A transmission method of a large-scale silage harvester header transmission is characterized in that the transmission is provided with two transmission lines, and the specific steps are as follows:
the second bevel gear is connected with the input shaft through a spline to transmit power to the first bevel gear, the first bevel gear is connected with the gear shaft through a spline, a gear part at the upper end of the gear shaft is meshed with the torsion bevel gear to transmit power to the radial core, an inner ring of the radial core is meshed with the driving core to output power, the driving core drives the sun gear to rotate, the sun gear drives the planet gear to rotate and revolve along the inner gear ring, the planet carrier revolves along with the planet carrier to drive the output shaft to rotate, the output rotating speed is reduced, the torque is improved, and the power is output to form a first transmission route;
the helical gear and the input shaft are connected through a spline to transmit power to the intermediate gear, the intermediate gear is meshed with the hollow gear, and the hollow gear outputs the power to the next required link, so that a second transmission route is formed.
The invention has the following positive effects:
1. the overload protection device for the oil-immersed spring radial pin is arranged, so that the damage to the speed changer and a transmission mechanism when the feeding roller is blocked and overloaded is effectively solved, and the service life of the speed changer is prolonged;
2. the oil-immersed spring radial pin overload protection device is arranged, so that heat is effectively dissipated during overload protection, noise is reduced, and the transmission can quickly return to a normal working state;
3. the oil-immersed type spring radial pin overload protection device is adopted, the whole structure is simple and compact, the transmission penetration is simple and convenient, and the adaptability is strong;
4. under the condition that only one power source is input, the bidirectional output of different rotating speeds is realized, the production cost is saved and the power loss is reduced while the operation efficiency is ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a transmission line according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a second transmission line according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a planetary gear set according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an oil-immersed spring radial pin overload protection device in a top view according to an embodiment of the invention;
in the figure: the overload protection device comprises a shell 1, an input shaft 2, an oil-immersed spring radial pin overload protection device 3, a sun gear 4, an output shaft 5, a flange plate 6, a planet carrier 7, a planet shaft 8, a planet gear 9, a torsion helical gear 10, a gear shaft 11, a first bevel gear 12, a second bevel gear 13, a helical gear 14, an intermediate gear 15, a hollow gear 16, a radial drive spring sleeve 17, a torsion spring 18, a radial core 19, a drive core shaft 20, an inner gear ring 21 and a groove 22.
Detailed Description
The invention is further described with reference to the following figures and examples:
a cutting table transmission of a large silage harvester comprises a shell 1, an input shaft 2, an oil-immersed spring radial pin overload protection device 3, a planetary wheel set, an output shaft 5, a gear shaft 11, a bevel gear I12, a bevel gear II 13, a bevel gear 14, an intermediate gear 15 and a hollow gear 16;
the input shaft 2 is arranged on the shell 1, the input shaft 2 is provided with a second bevel gear 13 and a helical gear 14 which are coaxially arranged, the second bevel gear 13 and the helical gear 14 are connected with the input shaft 2 through splines, the second bevel gear 13 is meshed with the first bevel gear 12, the first bevel gear 12 is connected with the gear shaft 11 through splines, and the upper end of the gear shaft 11 is in transmission connection with the planetary gear set through the oil-immersed spring radial pin overload protection device 3;
the overload protection device 3 for the oil-immersed spring radial pin comprises a torsion helical gear 10, a torsion spring 18, a radial core body 19 and a driving core body 20, wherein the torsion helical gear 10, the radial core body 19 and the driving core body 20 are sequentially sleeved from outside to inside, and the inner ring of the radial core body 19 is meshed with the driving core body 20; the external teeth of the torsional helical gear 10 are meshed with the gear part at the upper end of the gear shaft 11, and the torsional helical gear 10 is connected with the radial core 19 through a torsional spring 18;
the planetary wheel set comprises a sun wheel 4, a planet carrier 7, planetary shafts 8, planetary wheels 9 and an inner gear ring 21, the sun wheel 4 is arranged on a driving core body 20 and is coaxially arranged with a torsion helical gear 10 and a radial core body 19, a plurality of planetary wheels 9 are meshed at the outer side of the sun wheel 4, the planetary wheels 9 are respectively arranged on the corresponding planetary shafts 8, the end parts of the planetary shafts 8 are arranged on the planetary carrier 7, the outer ring of the inner gear ring 21 is fixed on the shell 1, the inner teeth of the inner gear ring are meshed with the planetary wheels 9, and the planet carrier 7 is connected with one end of an output shaft 5;
the helical gear 14 meshes with an intermediate gear 15, and the intermediate gear 15 meshes with a hollow gear 16.
A plurality of grooves 22 are uniformly arranged on the inner ring side of the torsion helical gear 10, spring grooves matched with the trapezoidal grooves one by one are formed in the outer ring of the radial core body 19, one end of a torsion spring 18 is fixed at the bottom of the spring groove, the other end of the torsion spring 18 is sleeved with a radial driving spring sleeve 17, and the radial driving spring sleeve 17 is tightly propped in the groove of the torsion helical gear 10.
The groove 22 is an isosceles trapezoid groove.
And the other end of the output shaft 5 is provided with a flange 6.
The torsion spring 18 is connected with the radial driving spring sleeve 17, under the action of spring force, the radial driving spring sleeve 17 tightly props against the torsion bevel gear 10, and the torsion bevel gear 10 is meshed with a gear part at the upper end of the gear shaft 11. In normal operation, the torsional helical gear 10 rotates, and the radial core 19 is driven to rotate by the radial driving spring sleeve 17 pressed by the torsional spring 18, and the inner ring of the radial core 19 is meshed with the driving core 20 to output power. When the header encounters blockage and overload, the output shaft 5 is blocked, the torque is increased instantly, the compression deformation of the torsion spring 18 in the oil-immersed spring radial pin overload protection device 3 is increased, the radial core body 19 is in a working failure slipping state, and the oil-immersed spring radial pin overload protection device 3 plays a role in protecting a transmission and a transmission mechanism.
In the embodiment, with reference to the attached drawings:
the invention comprises two transmission routes, and mainly comprises an oil-immersed spring radial pin overload protection device 3, a sun gear 4, a planet carrier 7, a planet shaft 8, a planet gear 9, a torsion helical gear 10, a gear shaft 11, a bevel gear I12, a bevel gear II 13, a helical gear 14, an intermediate gear 15, a hollow gear 16, an inner gear ring 21 and the like.
The second bevel gear 13 and the input shaft 2 are in spline connection to transmit power to the first bevel gear 12, the first bevel gear 12 and the gear shaft 11 are in spline connection, a gear part at the upper end of the gear shaft 11 is meshed with the torsion bevel gear 10 to transmit the power to the radial core 19, an inner ring of the radial core 19 is meshed with the driving core 20 to output the power, the driving core 20 drives the sun gear 4 to rotate, the sun gear 4 drives the planet gear 9 to rotate and revolve along the inner gear ring 21, the planet carrier 7 revolves along with the rotation, the output shaft 5 is driven to rotate, the output rotating speed is reduced, the torque is increased, and the power is output, so that a first transmission route is formed.
The helical gear 14 and the input shaft 2 are connected through splines to transmit power to the intermediate gear 15, the intermediate gear 15 is meshed with the hollow gear 16, and the hollow gear 16 outputs the power to the next required link, so that a second transmission route is formed.
The invention comprises two transmission lines and can realize bidirectional output. The first power output path is output by the output shaft 5 and the flange plate 6, the second power output path is output by the hollow gear 16, and the cutting table can complete all operations by only one power source.

Claims (5)

1. The utility model provides a large-scale silage harvester header derailleur which characterized in that: the overload protection device comprises a shell (1), an input shaft (2), an oil-immersed spring radial pin overload protection device (3), a planetary gear set, an output shaft (5), a gear shaft (11), a bevel gear I (12), a bevel gear II (13), a helical gear (14), an intermediate gear (15) and a hollow gear (16); the input shaft (2) is arranged on the shell (1), the input shaft (2) is provided with a bevel gear II (13) and a bevel gear (14) which are coaxially arranged, the bevel gear II (13) and the bevel gear (14) are connected with the input shaft (2) through splines, the bevel gear II (13) is meshed with the bevel gear I (12), the bevel gear I (12) is connected with the gear shaft (11) through the splines, and the upper end of the gear shaft (11) is in transmission connection with the planetary wheel set through an oil-immersed spring radial pin overload protection device (3); the overload protection device (3) for the oil-immersed spring radial pin comprises a torsion helical gear (10), a torsion spring (18), a radial core body (19) and a driving core body (20), wherein the torsion helical gear (10), the radial core body (19) and the driving core body (20) are sequentially sleeved from outside to inside, and an inner ring of the radial core body (19) is meshed with the driving core body (20); the external teeth of the torsional helical gear (10) are meshed with the gear part at the upper end of the gear shaft (11), and the torsional helical gear (10) is connected with the radial core body (19) through a torsional spring (18); the planetary gear set comprises a sun gear (4), a planet carrier (7), a planetary shaft (8), planet gears (9) and an inner gear ring (21), the sun gear (4) is arranged on a driving core body (20) and is coaxially arranged with a torsion helical gear (10) and a radial core body (19), a plurality of planet gears (9) are meshed outside the sun gear (4), the planet gears (9) are respectively arranged on the corresponding planetary shaft (8), the end part of the planetary shaft (8) is arranged on the planet carrier (7), the outer ring of the inner gear ring (21) is fixed on the shell (1), the inner teeth of the inner gear ring are meshed with the planet gears (9), and the planet carrier (7) is connected with one end of an output shaft (5); the helical gear (14) is meshed with the intermediate gear (15), and the intermediate gear (15) is meshed with the hollow gear (16).
2. A large ensiler header transmission according to claim 1 or 2, characterised in that: a plurality of grooves (22) are uniformly arranged on the inner ring side of the torsion helical gear (10), spring grooves matched with the trapezoidal grooves one by one are formed in the outer ring of the radial core body (19), one end of a torsion spring (18) is fixed to the bottom of the spring groove, the other end of the torsion spring (18) is sleeved with a radial driving spring sleeve (17), and the radial driving spring sleeve (17) is tightly propped in the groove of the torsion helical gear (10).
3. A large ensiler header transmission according to claim 1 or 2, characterised in that: the groove (22) is an isosceles trapezoid groove.
4. A large ensiler header transmission according to claim 1 or 2, characterised in that: and a flange plate (6) is arranged at the other end of the output shaft (5).
5. A method for driving a gearbox of a cutting table of a large ensilage machine, which adopts the gearbox defined in any one of claims 1 to 4, and is characterized in that the gearbox has two transmission lines, and the method comprises the following specific steps:
the second bevel gear (13) is in spline connection with the input shaft (2) to transmit power to the first bevel gear (12), the first bevel gear (12) is in spline connection with the gear shaft (11), a gear part at the upper end of the gear shaft (11) is meshed with the torsion bevel gear (10) to transmit power to the radial core (19), an inner ring of the radial core (19) is meshed with the driving core (20) to output power, the driving core (20) drives the sun gear (4) to rotate, the sun gear (4) drives the planet gear (9) to rotate and revolve along the inner gear ring (21), the planet carrier (7) revolves along with the inner gear ring to drive the output shaft (5) to rotate, the output rotating speed is reduced, the torque is increased, and the power is output to form a first transmission route;
the helical gear (14) is connected with the input shaft (2) through a spline to transmit power to the intermediate gear (15), the intermediate gear (15) is meshed with the hollow gear (16), and the hollow gear (16) outputs the power to the next required link to form a second transmission route.
CN202111291553.3A 2021-11-03 2021-11-03 Silage harvester header transmission and transmission method thereof Active CN113931984B (en)

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Application Number Priority Date Filing Date Title
CN202111291553.3A CN113931984B (en) 2021-11-03 2021-11-03 Silage harvester header transmission and transmission method thereof

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Application Number Priority Date Filing Date Title
CN202111291553.3A CN113931984B (en) 2021-11-03 2021-11-03 Silage harvester header transmission and transmission method thereof

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CN113931984B CN113931984B (en) 2023-02-28

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614134A (en) * 1983-06-28 1986-09-30 Gewerkschaft Eisenhutte Westfalia Overload protection system for planetary gear drive
US6052978A (en) * 1998-03-21 2000-04-25 Deere & Company Ensilage harvester variable speed feed roll drive
CN202690896U (en) * 2012-07-14 2013-01-23 江苏省金象传动设备股份有限公司 High-power transmission device of vertical grinder
CN206130003U (en) * 2016-11-07 2017-04-26 唐山鑫万达实业股份有限公司 Ensilage machine header gearbox
CN113531057A (en) * 2021-08-03 2021-10-22 江阴齿轮箱制造有限公司 Stalk collecting roller gear box for silage harvester
CN216555256U (en) * 2021-11-03 2022-05-17 唐山鑫万达实业股份有限公司 Large-scale silage quick-witted header derailleur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614134A (en) * 1983-06-28 1986-09-30 Gewerkschaft Eisenhutte Westfalia Overload protection system for planetary gear drive
US6052978A (en) * 1998-03-21 2000-04-25 Deere & Company Ensilage harvester variable speed feed roll drive
CN202690896U (en) * 2012-07-14 2013-01-23 江苏省金象传动设备股份有限公司 High-power transmission device of vertical grinder
CN206130003U (en) * 2016-11-07 2017-04-26 唐山鑫万达实业股份有限公司 Ensilage machine header gearbox
CN113531057A (en) * 2021-08-03 2021-10-22 江阴齿轮箱制造有限公司 Stalk collecting roller gear box for silage harvester
CN216555256U (en) * 2021-11-03 2022-05-17 唐山鑫万达实业股份有限公司 Large-scale silage quick-witted header derailleur

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Patentee after: Tangshan Xinpu Machinery Manufacturing Co.,Ltd.

Country or region after: China

Address before: 063500 north side of East-West branch road of Agricultural Machinery Industrial Park, Chengxi Industrial Zone, LUANNAN COUNTY, Tangshan City, Hebei Province

Patentee before: TANGSHAN XINWANDA INDUSTRIAL Co.,Ltd.

Country or region before: China