CN208982640U - A kind of temperature of gear-shifting box regulating system and tractor - Google Patents
A kind of temperature of gear-shifting box regulating system and tractor Download PDFInfo
- Publication number
- CN208982640U CN208982640U CN201821344349.7U CN201821344349U CN208982640U CN 208982640 U CN208982640 U CN 208982640U CN 201821344349 U CN201821344349 U CN 201821344349U CN 208982640 U CN208982640 U CN 208982640U
- Authority
- CN
- China
- Prior art keywords
- gearbox
- temperature
- heat exchanger
- radiator
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- General Details Of Gearings (AREA)
Abstract
The utility model relates to temperature of gear-shifting box regulating system and tractors.Humidity control system include hydraulic system with the gearbox, heat exchanger and the radiator that pass sequentially through pipeline and connect, connected between radiator and gearbox by the first oil inlet pipe of gearbox；Pipeline between heat exchanger and radiator is equipped with control valve, and by the pipeline connection between control valve and heat exchanger and radiator, the other end is connect with gearbox for one end of the second oil inlet pipe of gearbox；First circulation circuit is formed when control valve control gearbox oil liquid enters gearbox through radiator and the first oil inlet pipe of gearbox；Second circulation circuit is formed when control valve control gearbox oil liquid enters gearbox through the second oil inlet pipe of gearbox；Hydraulic system is connect with heat exchanger, so that hydraulic system oil liquid is flowed back to hydraulic system through heat exchanger circulation, and heat exchange occurs with gearbox oil liquid in heat exchanger.Humidity control system in the utility model can greatly shorten the cold start-up time, good cooling results.
Description
Technical field
The utility model belongs to cooling system technical field, and in particular to a kind of temperature of gear-shifting box regulating system and dilatory
Machine.
Background technique
Country's engine-cooling system of big-powered tractor, gear box oil cooling system, hydraulic system of working be all at present
It is independent cooling recirculation system, the cooling medium of each system, cooling circuit are all relatively independent to be independent of each other.The heat of engine
It is transferred to coolant liquid, coolant liquid is recycled to engine radiator under the action of engine water pump, will be hot eventually by radiator
Amount, which distributes, makes engine operation in suitable temperature, equally, the heat transfer that phase mutual friction generates between gearbox gear to biography
Dynamic oil, is recycled to gearbox radiator under the action of gear box oil pump, and heat, which is distributed, makes gearbox work in reasonable temperature
Degree, similarly, the heat that the hydraulic oil in hydraulic system generates under high pressure is finally also to be distributed by the radiator of hydraulic system,
So that hydraulic system work is in reasonable temperature.But at low ambient temperatures, the viscosity of the transmission oil of gearbox or gear oil compared with
Greatly, when tractor starts, preferable lubricating oil film cannot be formed since the viscosity of transmission oil is larger, needs to preheat one section longer
Time just can make TOT Transmission Oil Temperature rise to suitable start-up temperature.
In addition, the radiator that the existing independent cooling recirculation system of tractor includes generally has engine radiator, speed change
Case radiator, hydraulic oil radiator etc. cause radiating module more, and the arrangement space needed is big；Also, the cooling of existing tractor
Engine radiator, gearbox radiator, hydraulic oil radiator for including in system etc. are typically all the fan of co-used engine
It cools down, therefore the position of hydraulic oil radiator limited by the position of engine blower, arranges not flexible.
Utility model content
Cold start-up time, good cooling results and connection and reasonable arrangement can be greatly shortened the purpose of the utility model is to provide a kind of
Flexible temperature of gear-shifting box regulating system and tractor, at least to solve a technical problem existing in the prior art.
To achieve the goals above, the utility model provides a kind of temperature of gear-shifting box regulating system in first aspect, packet
Include gearbox, heat exchanger, radiator and hydraulic system；Wherein: passing through pipe between the gearbox, heat exchanger and radiator
Road is sequentially connected, and is connected between the radiator and the gearbox by the first oil inlet pipe of gearbox；The heat exchanger and
Pipeline between the radiator is equipped with control valve, and one end of the second oil inlet pipe of gearbox passes through the control valve and the heat
Pipeline connection between exchanger and the radiator, the other end are connect with the gearbox；When the control valve controls speed change
The circuit that case oil liquid is formed when entering the gearbox through the radiator and the first oil inlet pipe of gearbox is first circulation circuit；
It is when the control valve controls the circuit formed when gearbox oil liquid enters the gearbox through second oil inlet pipe of gearbox
Second circulation circuit；The hydraulic system is connect with the heat exchanger, recycles hydraulic system oil liquid through the heat exchanger
The hydraulic system is flowed back to, and heat exchange occurs with the gearbox oil liquid in the heat exchanger.
Preferably, the control valve is temperature control valve, according to preset temperature control second oil inlet pipe of gearbox and
The on-off of pipeline between the heat exchanger and the radiator.
Preferably, the temperature control valve includes temperature sensor, the electric three passes for sensing gearbox oil liquid temperature
Flow divider, for receiving the temperature sensor signal and controlling the temperature controller of electric three passes flow divider work；Institute
The pipeline connection between the entrance of electric three passes flow divider and one outlet and the heat exchanger and the radiator is stated, it is another
A outlet is connect with second oil inlet pipe of gearbox.
Preferably, the heat exchanger is equipped with for the dynamic first passage of the gear box oil liquid stream and supplies the hydraulic system
The second channel of oil liquid flowing.
Preferably, the outer wall of the first passage and the second channel is provided with fin.
Preferably, the first passage and the second channel are flat channel.
Preferably, the first passage staggeredly and is stacked with the second channel.
The utility model provides a kind of tractor in second aspect, the change including the utility model described in first aspect
Fast case humidity control system.
The utility model have it is following the utility model has the advantages that
(1) control valve in the utility model can be according to the temperature and preset temperature of the oil liquid in heat exchanger flowline
The on-off of the pipeline between second oil inlet pipe of gearbox and the heat exchanger and the radiator is controlled, thus in institute
It states and forms different circulation loops in humidity control system, can effectively adjust the temperature of gear box oil, to make institute always
Gearbox work is stated in suitable temperature, improves fuel economy.
(2) when the humidity control system in the utility model is cold-started in low temperature environment, the heat of hydraulic system can pass through
Heat exchanger is transferred to the transmission oil of gearbox, can quickly heat gearbox oil liquid, and control valve can be according to warm at the same time
The temperature and preset temperature of oil liquid in exchanger flowline, control gearbox oil liquid is without radiator heat-dissipation directly through the
Two recycle loops flow back into gearbox, further promote the rising of gearbox oil liquid temperature, substantially reduce gearbox
The time being cold-started with tractor, thus the service life for improving cold starting performance to protect gearbox, improve gearbox
And improve fuel economy；Humidity control system in the utility model in normal operation, can use hot friendship
Parallel operation is quickly cooled down the hydraulic oil in hydraulic system, so that hydraulic system work is in suitable temperature.
(3) humidity control system structure in the utility model is simple, practical, heat exchanger assignment is flexible.
Detailed description of the invention
The utility model attached drawing only provides for the purpose of illustration, in figure the ratio Yu quantity of each component not necessarily with practical production
Product are consistent.
Fig. 1 is the structural schematic diagram of temperature of gear-shifting box regulating system in the utility model.
Fig. 2 is the structural schematic diagram of temperature of gear-shifting box regulating system in one specific embodiment of the utility model.
In figure: 1: gearbox；2: hydraulic system；3: heat exchanger；4: control valve；4-1: electric three passes flow divider；5: dissipating
Hot device；6: gearbox flowline；7: heat exchanger flowline；8: radiator oil inlet pipe；9: the first oil inlet pipe of gearbox；10: becoming
Fast the second oil inlet pipe of case；11: hydraulic system flowline；12: hydraulic system oil inlet pipe.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, implement below in conjunction with the utility model
Attached drawing in example, is clearly and completely described the technical solution of the utility model, it is clear that described embodiment is this
A part of the embodiment of utility model, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the utility model guarantor
The range of shield.
The utility model provides a kind of temperature of gear-shifting box regulating system in first aspect, and Fig. 1 is become in the utility model
The structural schematic diagram of fast case humidity control system.As shown in Figure 1, the temperature of gear-shifting box regulating system include gearbox 1, it is hydraulic
System 2, heat exchanger 3 and radiator 5；Wherein: between the gearbox 1, heat exchanger 3 and radiator 5 successively by pipeline
Connection is connected between the radiator 5 and the gearbox 1 by the first oil inlet pipe of gearbox 9；The heat exchanger 3 and institute
It states the pipeline between radiator 5 and is equipped with control valve 4, one end of the second oil inlet pipe of gearbox 10 passes through the control valve 4 and institute
The pipeline connection between heat exchanger 3 and the radiator 5 is stated, the other end is connect with the gearbox 1；When the control valve 4
The circuit that control gearbox oil liquid is formed when entering the gearbox 1 through the radiator 5 and the first oil inlet pipe of gearbox 9 is the
One circulation loop；Enter the gearbox 1 through second oil inlet pipe of gearbox 10 when the control valve 4 controls gearbox oil liquid
When the circuit that is formed be second circulation circuit；The hydraulic system 2 is connect with the heat exchanger 3, passes through hydraulic system oil liquid
The circulation of heat exchanger 3 flows back to the hydraulic system 2, and heat occurs with the gearbox oil liquid in the heat exchanger 3
Exchange.
No setting is required that hydraulic oil radiator can reach cooling gearbox 1 simultaneously for the humidity control system of the utility model
With the purpose of hydraulic system 2, therefore in terms of humidity control system integral arrangement, without the position limit by engine blower
It makes, the heat exchanger, radiator connection and reasonable arrangement in humidity control system are flexible.Humidity control system in the utility model is simultaneously
Have the effect of cooling hydraulic system, cooling gearbox and greatly shorten the cold start-up time, this is other humidity control systems
It is unrivaled.
The utility model is not particularly limited heat exchanger 3, is well known heat exchanger (heat
Conduction device)；In the present invention, the arrangement of heat exchanger is not limited to the position of engine and radiator
It sets, the place compared with easy heat radiation and few dirt can be arranged in, arranged more flexible；The utility model is not special to the pipeline
Limitation, can be arranged valve on the pipeline.
According to some preferred embodiments, the control valve 4 is temperature control valve, controls the change according to preset temperature
The on-off of fast the second oil inlet pipe of case 10 and the pipeline between the heat exchanger 3 and the radiator 5.
According to some preferred embodiments, the temperature control valve includes the temperature for sensing gearbox oil liquid temperature
Sensor, electric three passes flow divider 4-1, for receiving the temperature sensor signal and controlling the electric three passes flow divider 4-
The temperature controller of 1 work；The entrance of the electric three passes flow divider 4-1 and one outlet and the heat exchanger 3 and described
Pipeline connection between radiator 5, another outlet are connect with second oil inlet pipe of gearbox 10, (figure medium temperature as shown in Figure 2
Degree sensor and temperature controller are not shown).Particularly, the utility model is to temperature sensor, electric three passes flow divider and temperature
Degree controller is not particularly limited, such as can be well known temperature sensor, electric three passes flow divider and temperature controller.
Particularly, in the present invention, temperature sensor sensing be gearbox oil liquid after flowing through heat exchanger temperature.
According to some preferred embodiments, the heat exchanger 3 is equipped with first moved for the gear box oil liquid stream and leads to
Road and the second channel flowed for the hydraulic system oil liquid.In the present invention, the oil liquid in the gearbox 1 flows through
One channel, the oil liquid in the hydraulic system 2 flows through second channel, due to existing between gearbox oil liquid and hydraulic system oil liquid
Temperature difference, two kinds of oil can mutually carry out hot transmitting in heat exchanger 3, in normal operation, can use opposite
The hydraulic system oil liquid of the gear box oil liquid cooling of low temperature but relatively-high temperature.
According to some specific embodiments, the gearbox 1 is entered by gearbox flowline 6 and the first passage
The outlet of mouth connection, the first passage is connect by heat exchanger flowline 7 with the entrance of electric three passes flow divider 4-1；Institute
The one outlet for stating electric three passes flow divider 4-1 is connect by radiator oil inlet pipe 8 with the radiator 5, and the radiator 5 is logical
The first oil inlet pipe of gearbox 9 is crossed to connect with the gearbox 1；Another outlet of the electric three passes flow divider 4-1 passes through change
Fast the second oil inlet pipe of case 10 is connect with the gearbox 1, and the temperature control valve is according to the oil in the heat exchanger flowline 7
The temperature and preset temperature of liquid are operatively used for controlling the radiator oil inlet pipe 8 and second oil inlet pipe of gearbox 10
On-off.The hydraulic system 2 is connect by hydraulic system flowline 11 with the entrance of the second channel, the hydraulic system
2 are connect by hydraulic system oil inlet pipe 12 with the outlet of the second channel.Particularly, in the present invention, the speed change
For case flowline 6 also as the oil inlet pipe of first passage, the flowline of the heat exchanger flowline 7 namely first passage is described
Hydraulic system flowline 11 is also as the oil inlet pipe of second channel, the hydraulic system oil inlet pipe 12 also going out as second channel
Oil pipe.
According to some specific embodiments, the course of work of the utility model for example can be with are as follows: presets a temperature
Limit value (preset temperature), in the present invention, which is usually set to 60 DEG C；The humidity control system is working
When, temperature sensor senses the temperature of the oil liquid in heat exchanger flowline 7 in real time, and temperature controller is based on the received from temperature
The temperature signal that sensor transmits judges whether the temperature of the oil liquid in heat exchanger flowline 7 is lower than preset temperature；If so, warm
Spending controller is made by the work of control electric three passes flow divider 4-1 so that the second oil inlet pipe of the gearbox 10 forms access
The radiator oil inlet pipe 8 forms open circuit so that the gearbox 1, the gearbox flowline 6, described first logical
Second circulation is formed between road, the heat exchanger flowline 7, the second oil inlet pipe of the gearbox 10 and the gearbox 1 to return
Road (partial circulating circuit)；If it is not, work of the temperature controller by control electric three passes flow divider 4-1, so that the gearbox
Second oil inlet pipe 10 forms open circuit, so that the radiator oil inlet pipe 8 forms access, so that the gearbox 1, the change
Fast case flowline 6, the first passage, the heat exchanger flowline 7, the radiator oil inlet pipe 8, the radiator 5, institute
State formation first circulation circuit (systemic circulation circuit) between the first oil inlet pipe of gearbox 9 and the gearbox 1.It is returned in first circulation
Under the action of radiator in road, so that the temperature of gearbox working fluid remains at 60~70 DEG C, and hydraulic pressure system at this time
The hydraulic working oil temperature of system is at 70~80 DEG C, and two kinds of oil are in heat exchanger 3 since there are temperature difference, heat is passed by hydraulic oil
It is handed to gearbox oil liquid, the temperature of gearbox oil liquid is cooling through radiator 5 again, to reach cooling gearbox 1 and hydraulic simultaneously
The purpose of system 2.
Humidity control system in the utility model is especially (such as cold in low temperature environment when gearbox starts
Winter) in starting when, the heat of hydraulic system 2 can be transferred to transmission oil in gearbox 1 by heat exchanger 3, can quickly add
Hot gearbox oil liquid, and simultaneously, the humidity control system in the utility model is provided with different circulation loops, only reaches one
The gearbox oil liquid for determining temperature just needs to radiate by radiator 5, and in this way in low-temperature cool starting, gearbox oil liquid is needed not move through
Radiator 5 radiates, it is possible to prevente effectively from unnecessary heat loss, promotes the rising of gearbox oil liquid temperature, greatly shorten
The time of gearbox cold start-up, improve the cold starting performance of gearbox；In addition, when TOT Transmission Oil Temperature is relatively low, nothing
Radiator heat-dissipation is needed, also can be reduced the consumption of radiator energy in this way, improves the efficiency of radiator.
Gearbox starts the humidity control system energy needed to preheat in certain time and the utility model in cold environment
Shorten cold start-up the time the main reason for be: gearbox as important transmission parts (such as important transmission parts of tractor) with
Engine is directly connected to, and the power of engine is transferred to tire, the hydraulic pump of hydraulic system is mounted on the power taking on gearbox
On mouth, a part of power of engine is handed to hydraulic pump through gearbox power taking oral instructions, and the working media hydraulic oil of hydraulic system exists
It is drawn to control unit valve or execution unit oil cylinder etc. from hydraulic oil container under the action of working barrel, hydraulic oil pump belongs to normally opened element
That is engine operation, hydraulic oil pump begin to work, and hydraulic oil pump is gear pump, and hydraulic oil generates heat under the compression of gear pump
Amount；When tractor is cold-started (gearbox cold start-up), vehicle is not walked, and each gear does not work in gearbox, gearbox transmission
Oil temperature is substantially consistent with environment temperature, and oil temperature is lower, transmission oil viscosity is larger, and oil temperature at this time is unfavorable between gear
Lubrication, needing to preheat longer period of time just can make TOT Transmission Oil Temperature rise to suitable start-up temperature；But hydraulic oil is pumping
Under the action of temperature rise very fast, the heat that hydraulic system distributes is transferred to gear box oil under the action of heat exchanger, allows change
Fast case oil is rapidly heated, and reaches the best lubricating condition of gearbox, reduces transmission internal gear drive resistance and noise, i.e., dilatory
Machine can start to walk walking of putting into gear at this time.
According to some preferred embodiments, the outer wall of the first passage and the second channel is provided with fin.
According to some preferred embodiments, the first passage and the second channel are flat channel.
According to some preferred embodiments, the first passage staggeredly and is stacked with the second channel, so
The oil in first passage and second channel can be made to carry out more preferable faster heat exchange.
The utility model provides a kind of tractor in second aspect, the change including the utility model described in first aspect
Fast case humidity control system.The humidity control system that tractor in the utility model has cooling effect good, and this is practical new
The time that tractor in type starts at low temperature is short (the cold start-up time is short).
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (8)
1. a kind of temperature of gear-shifting box regulating system, it is characterised in that:
Including gearbox, heat exchanger, radiator and hydraulic system；Wherein:
Be sequentially connected between the gearbox, heat exchanger and radiator by pipeline, the radiator and the gearbox it
Between by the first oil inlet pipe of gearbox connect；
Pipeline between the heat exchanger and the radiator is equipped with control valve, and one end of the second oil inlet pipe of gearbox passes through
Pipeline connection between the control valve and the heat exchanger and the radiator, the other end are connect with the gearbox；
When the control valve, which controls gearbox oil liquid, enters the gearbox through the radiator and the first oil inlet pipe of gearbox
The circuit of formation is first circulation circuit；
When the control valve controls time formed when gearbox oil liquid enters the gearbox through second oil inlet pipe of gearbox
Road is second circulation circuit；
The hydraulic system is connect with the heat exchanger, and hydraulic system oil liquid is made to flow back to the liquid through heat exchanger circulation
Pressure system, and heat exchange occurs with the gearbox oil liquid in the heat exchanger.
2. temperature of gear-shifting box regulating system according to claim 1, it is characterised in that:
The control valve is temperature control valve, controls second oil inlet pipe of gearbox and the heat exchanger according to preset temperature
The on-off of pipeline between the radiator.
3. temperature of gear-shifting box regulating system according to claim 2, it is characterised in that:
The temperature control valve include for sensing gearbox oil liquid temperature temperature sensor, electric three passes flow divider, be used for
It receives the temperature sensor signal and controls the temperature controller of the electric three passes flow divider work；
Pipeline between the entrance and one outlet and the heat exchanger and the radiator of the electric three passes flow divider connects
It connects, another outlet is connect with second oil inlet pipe of gearbox.
4. temperature of gear-shifting box regulating system according to claim 1, it is characterised in that:
The heat exchanger is equipped with for the dynamic first passage of the gear box oil liquid stream and for hydraulic system oil liquid flowing
Second channel.
5. temperature of gear-shifting box regulating system according to claim 4, it is characterised in that:
The outer wall of the first passage and the second channel is provided with fin.
6. temperature of gear-shifting box regulating system according to claim 4 or 5, it is characterised in that:
The first passage and the second channel are flat channel.
7. temperature of gear-shifting box regulating system according to claim 4 or 5, it is characterised in that:
The first passage staggeredly and is stacked with the second channel.
8. a kind of tractor, it is characterised in that: including the described in any item temperature of gear-shifting box regulating systems of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821344349.7U CN208982640U (en) | 2018-08-21 | 2018-08-21 | A kind of temperature of gear-shifting box regulating system and tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821344349.7U CN208982640U (en) | 2018-08-21 | 2018-08-21 | A kind of temperature of gear-shifting box regulating system and tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208982640U true CN208982640U (en) | 2019-06-14 |
Family
ID=66781938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821344349.7U Active CN208982640U (en) | 2018-08-21 | 2018-08-21 | A kind of temperature of gear-shifting box regulating system and tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208982640U (en) |
-
2018
- 2018-08-21 CN CN201821344349.7U patent/CN208982640U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109927534B (en) | Thermal management system and control method for hybrid power heavy truck | |
| CN108625970B (en) | Water-cooling heat radiating system and engineering truck for engineering truck | |
| US20170248065A1 (en) | Thermal management system and method ofmaking and using the same | |
| CN105422247A (en) | Intelligent cooling system based on split cooling and reverse cooling for engine, and control method | |
| CN206664207U (en) | A kind of vehicle changes in temperature circulatory system and automobile | |
| CN105172522B (en) | Hybrid vehicle heat management system | |
| CN109578126A (en) | High/low temperature dual cycle cooling system for hybrid vehicle | |
| CN103670653A (en) | Cooling system for vehicle engine and automobile with cooling system | |
| CN108223097A (en) | A kind of engine high/low temperature dual cycle cooling system | |
| CN207864042U (en) | Engine thermal management system and engine | |
| CN105697120A (en) | Novel engine intelligent cooling system and control method based on split cooling and reversed cooling | |
| CN107882624A (en) | Engineering truck dual cycle cooling system | |
| CN106499494A (en) | Automobile engine zero delivery cooling system and its control method | |
| CN206158839U (en) | Automobile engine cooling circulation system of temperature saver is put to outband | |
| CN107339141A (en) | A kind of automobile engine nacelle cooling system | |
| CN207433190U (en) | The thermal management system of whole of plug-in hybrid-power automobile | |
| CN205477878U (en) | Novel intelligent cooling system of engine based on components of a whole that can function independently cooling and reverse cooling | |
| CN207005142U (en) | A kind of cooling system for matching Retarder | |
| CN208982640U (en) | A kind of temperature of gear-shifting box regulating system and tractor | |
| CN206503637U (en) | A kind of heavy-duty commercial vehicle fan cooling system | |
| CN205297711U (en) | Engine intelligent cooling system based on components of a whole that can function independently cooling and reverse cooling | |
| CN209852074U (en) | Thermal management system of hybrid power heavy-duty truck | |
| CN218030352U (en) | Engine cooling system and vehicle | |
| CN209196090U (en) | Novel double-loop gearbox oil temperature adjustment structure, engine assembly and automobile | |
| CN106151470A (en) | A kind of variator cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 241080 16 e - Xi Road, San Shan Economic Development Zone, Wuhu, Anhui Patentee after: Zhonglian Agricultural Machinery Co., Ltd Address before: 241080 Anhui province Wuhu City mountain Economic Development Zone E Xi Road No. 16 Patentee before: ZOOMLION HEAVY MACHINERY Co.,Ltd. |
|
| CP03 | Change of name, title or address |