CN109056860A - excavator - Google Patents
excavator Download PDFInfo
- Publication number
- CN109056860A CN109056860A CN201810997305.2A CN201810997305A CN109056860A CN 109056860 A CN109056860 A CN 109056860A CN 201810997305 A CN201810997305 A CN 201810997305A CN 109056860 A CN109056860 A CN 109056860A
- Authority
- CN
- China
- Prior art keywords
- connect
- hydraulic
- engine
- power
- slewing equipment
- 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.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 11
- 239000002828 fuel tank Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 4
- -1 driver's cabin Substances 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 210000004209 hair Anatomy 0.000 claims description 4
- 230000008450 motivation Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses excavators, including vehicle frame, slewing equipment, running gear, slewing equipment, running gear is connect with vehicle frame respectively, slewing equipment is equipped with engine device assembly, radiator, fuel tank, driver's cabin, hydraulic oil container, driver's cabin is set to the left front portion of slewing equipment, engine device assembly is set to the middle part of slewing equipment, radiator is set to the leftward position of engine device assembly, fuel tank is set to the right front portion of slewing equipment, hydraulic oil container is set to the right rear portion of slewing equipment, the front end of the power output shaft of engine is connect with speed changing structure, the power of engine is connect by the rear end of the power output shaft of engine with hydraulic power export structure, hydraulic power export structure is connect with hydraulic pump power intake, hydraulic pump is connect by connection structure with engine fuselage, hydraulic pump inlet by hydraulic pipeline with Hydraulic oil container connection, liquid outlet are connect with radiator, hydraulic work device respectively by fluid pressure line.
Description
Technical field
The present invention relates to excavator technical field more particularly to a kind of excavators.
Background technique
Digger engine in the prior art, engine only have one end that can export outer power, and power is supplied to hair
Device other than motivation itself works as power, and the excavator of this structure, which has a defect that, can not install energy saving height
The electric proportional hydraulic system of effect, can not a tractor serves several purposes.
Summary of the invention
The object of the invention is exactly to provide a kind of excavator to overcome disadvantages mentioned above of the existing technology；Present invention hair
The other end of motivation can connect hydraulic pump, power of the outside output power of hydraulic pump as the hydraulic work device of excavator
Source, hydraulic pump give other hydraulic work devices as power energy transmission, and operation of the present invention is simple, convenient to install and maintain, therefore
Barrier rate is low, and mechanism is compact, occupies little space, and production cost is low, can more effectively utilize engine power, solves engine only
Have one end can outward output power defect.The present invention can more effective energy-saving and environmental protection, utilize engine transmitting available energy
Amount, to realize a tractor serves several purposes, installs more auxiliary tools.
The technical scheme adopted by the invention to solve the technical problem is that:
A kind of excavator, including vehicle frame, slewing equipment, running gear, the slewing equipment, running gear respectively with vehicle frame
Connection, the slewing equipment are equipped with engine device assembly, radiator, fuel tank, driver's cabin, hydraulic oil container, the driving
Room is set to the left front portion of slewing equipment, and engine device assembly is set to the middle part of slewing equipment, and radiator is filled set on engine
The leftward position of assembly is set, fuel tank is set to the right front portion of slewing equipment, and hydraulic oil container is set to the right rear portion of slewing equipment, wherein
The front end of the power output shaft of engine is connect with speed changing structure, and speed changing structure transmits power to front steering vehicle bridge, rear axle,
The power of engine is connect by the rear end of the power output shaft of engine with hydraulic power export structure, and the hydraulic power is defeated
Structure is connect with hydraulic pump power intake out, and hydraulic pump is connect by connection structure with engine fuselage, hydraulic pump inlet
It is connected with hydraulic tank by hydraulic pipeline, liquid outlet is connect with radiator, hydraulic work device respectively by fluid pressure line.
The hydraulic power export structure includes shaft coupling, flywheel, and the flywheel is connected with the other end of power output shaft,
Shaft coupling one end is connect with flywheel, and the shaft coupling other end is connect with hydraulic pump power entering spindle.
The shaft coupling other end is connect by spline fitted with hydraulic pump power entering spindle.
The connection structure includes left Working rack, right Working rack, flange terminal pad, one end of the left Working rack
With connect on the right side of engine fuselage, right Working rack and engine fuselage left side are connect, left Working rack, right Working rack it is another
One end is connect with flange terminal pad respectively, and hydraulic pump is connect with flange terminal pad.
The left Working rack by being connected on the right side of bolt, positioning pin and engine fuselage, right Working rack by bolt,
It is connect on the left of positioning pin and engine fuselage, hydraulic pump is connect by bolt with flange terminal pad.
The speed changing structure includes gearbox, and one end of the power output shaft of the power input shaft and engine of gearbox connects
It connects, the power output shaft of gearbox is connect with upper gear box power intake, on upper gear box power output end and upper transmission shaft
End connection, upper transmission shaft lower end are connect with lower transmission case power intake, and lower transmission case power output front end passes through front propeller shaft
It is connect with front steering vehicle bridge, lower transmission case power output rear end is connect by inter-axle shaft with rear axle.
The hydraulic work device includes hydraulic control multi-way valve, hydraulic cylinder, hydraulic motor.
The beneficial effects of the present invention are:
1. engine power of the invention is connect by the rear end of engine power output shaft with hydraulic power export structure,
Hydraulic power export structure is connect with hydraulic pump power intake, and hydraulic pump is connect by connection structure with engine fuselage, liquid
Press pump inlet is connected with hydraulic tank by hydraulic pipeline, liquid outlet by fluid pressure line respectively with radiator, hydraulic
Device connection provides power to workpieces such as radiator, hydraulic work devices by hydraulic pump, the hydraulic work as excavator
The power source for making device solves the defect that engine only has the outside output power in one end.Energy-saving and environmental protection of the present invention, efficiently therefore
Barrier rate is low, and it is wide to match range, can install more auxiliary tools work, for example, can with tamping machine, scavenging machine, snow breaker,
The machine coordinations such as woodenware, ditching machine, hydraulic tongs are pressed from both sides to use.
2. the present invention is set to the left front portion of slewing equipment due to driver's cabin, engine device assembly is set in slewing equipment
Between portion, radiator is set to the leftward position of engine device assembly, and fuel tank is set to the right front portion of slewing equipment, and hydraulic oil container sets
In the right rear portion of slewing equipment, mechanism is compact, occupies little space, and production cost is low, can more effectively utilize engine power.
3. operation of the present invention is simple, convenient to install and maintain, failure rate is low.
4. flywheel of the invention is connected by bolt with the other end of power output shaft, shaft coupling one end is by bolt and flies
Wheel connection, the shaft coupling other end are connect by spline with hydraulic pump power entering spindle, and bonding strength is good, high reliablity, are convenient for
Installation and removal；By connecting on the right side of bolt, positioning pin and engine fuselage, right Working rack passes through for one end of left Working rack
Connected on the left of bolt, positioning pin and engine fuselage, left Working rack, right Working rack the other end respectively with flange terminal pad
Connection, hydraulic pump are connect by bolt with flange terminal pad, and installation positioning accuracy is high, are easily installed and are dismantled.
Detailed description of the invention
The present invention is described further with reference to the accompanying drawings and examples:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is rear end and the hydraulic power export structure attachment structure schematic diagram of the power output shaft of engine；
Fig. 3 is left Working rack, right Working rack structural schematic diagram；
Fig. 4 is speed changing structure and power transmission structure schematic diagram.
In figure, 1 radiator, 2 engine device assemblies, 3 hydraulic oil containers, 4 fuel tanks, 6 driver's cabins, 7 vehicle frames, 9 walking dresses
It sets；
21 hydraulic pumps, 22 flange terminal pads, 23 shaft couplings, 24 flywheels, 25 left Working racks, 26 right Working racks, 27 hairs
Motivation, the other end of 28 power output shafts, 29 speed changing structures；
31 include gearbox, 32 upper gear boxs, transmission shaft on 33,34 lower transmission cases, 35 front propeller shafts, 36 front steering vehicle bridge,
37 transmission shafts, 38 rear axles.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.
As shown in Figs 1-4, a kind of excavator, including vehicle frame 7, slewing equipment, running gear 9, the slewing equipment, walking
Device is connect with vehicle frame respectively, the slewing equipment be equipped with engine device assembly 2, radiator 1, fuel tank 4, driver's cabin 6,
Hydraulic oil container 3, the driver's cabin 6 are set to the left front portion of slewing equipment, and engine device assembly 2 is set to the centre of slewing equipment
Portion, radiator 1 are set to the leftward position of engine device assembly, and fuel tank 4 is set to the right front portion of slewing equipment, hydraulic oil container 3
Set on the right rear portion of slewing equipment, the front end of the power output shaft of engine is connect with speed changing structure, and speed changing structure passes power
Defeated to arrive front steering vehicle bridge 36, rear axle 38, the power of engine passes through rear end and the hydraulic power of the power output shaft of engine
Export structure connection, the hydraulic power export structure are connect with 21 power intake of hydraulic pump, and hydraulic pump 21 passes through connection knot
Structure is connect with engine fuselage, and 21 inlet of hydraulic pump is connected with hydraulic tank by hydraulic pipeline, liquid outlet passes through hydraulic tube
Road is connect with radiator 1, hydraulic work device, and hydraulic work device includes hydraulic control multi-way valve, hydraulic cylinder, hydraulic motor
Deng.The other end of inventive engine can connect hydraulic pump, hydraulic of the outside output power of hydraulic pump as excavator
The power source of device, hydraulic pump give each hydraulic work device energy transmission, solve engine and only have one end outside
The defect of output power.
The hydraulic power export structure includes shaft coupling 23, flywheel 24, and the flywheel 24 passes through bolt and power output
The other end 28 of axis is connected, and 23 one end of shaft coupling is connect by bolt with flywheel 24, and 23 other end of shaft coupling passes through spline and liquid
The connection of 21 power entering spindle of press pump.Operation of the present invention is simple, convenient to install and maintain, and failure rate is low, and mechanism is compact, occupied space
Small, production cost is low, can more effectively utilize engine power.
The connection structure includes left Working rack 25, right Working rack 26, flange terminal pad 22, the left Working rack
25 one end is connected by connecting hole bolt, positioning pin with machine rack mounting hole on the right side of engine fuselage, right Working rack
26 are connected by bolt, positioning pin and 27 left side machine rack mounting hole of engine fuselage, left Working rack 25, right Working rack
26 other end is connect with flange terminal pad 22 respectively, and hydraulic pump 21 is connect by bolt with flange terminal pad 22.Due to shaft coupling
Device one end is connect by bolt with flywheel, and the shaft coupling other end is connect by spline with hydraulic pump power entering spindle, and connection is strong
It spends, high reliablity, is easily installed and dismantles；One end of left Working rack passes through bolt, positioning pin and engine fuselage right side
Connection, right Working rack by being connected on the left of bolt, positioning pin and engine fuselage, left Working rack, right Working rack it is another
One end is connect with flange terminal pad respectively, and hydraulic pump is connect by bolt with flange terminal pad, and installation positioning accuracy is high, convenient for peace
Assembly and disassembly.
The speed changing structure includes gearbox 31, one end of the power output shaft of the power input shaft and engine of gearbox
Connection, the power output shaft of gearbox are connect with 32 power intake of upper gear box, upper gear box power output end and upper transmission
The connection of 33 upper end of axis, upper transmission shaft lower end are connect with 34 power intake of lower transmission case, and lower transmission case power output front end passes through
Front propeller shaft 35 is connect with front steering vehicle bridge 36, and lower transmission case power output rear end is connected by inter-axle shaft 37 and rear axle 38
It connects.
The left Working rack 25, right Working rack 26 include vertically disposed part A, vertically disposed part B, water
The C portion of flat setting, part A is vertical with part B front end face to be connect, and portion's outer end face is connect C portion in sectionb with part B, C
Part is equipped with reinforcing rib D.Part A is equipped with connecting hole, and part B is equipped with the connecting hole connecting with engine, and C portion is equipped with and damping
Device connection connecting hole and plane, part B be equipped with open slot E, fluting E prevent with motor body interfere etc..
The hydraulic work device includes including hydraulic control multi-way valve, hydraulic cylinder, hydraulic motor.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, should fall within the scope of the present invention.
Claims (8)
1. a kind of excavator, including vehicle frame, slewing equipment, running gear, the slewing equipment, running gear connect with vehicle frame respectively
It connects, characterized in that the slewing equipment is equipped with engine device assembly, radiator, fuel tank, driver's cabin, hydraulic oil container, institute
The left front portion that driver's cabin is set to slewing equipment is stated, engine device assembly is set to the middle part of slewing equipment, and radiator is set to hair
The leftward position of motivation assembly of devices, fuel tank is set to the right front portion of slewing equipment, after hydraulic oil container is set to the right side of slewing equipment
Portion, wherein the front end of the power output shaft of engine is connect with speed changing structure, speed changing structure transmit power to front steering vehicle bridge,
The power of rear axle, engine is connect by the rear end of the power output shaft of engine with hydraulic power export structure, the liquid
Pressure power export structure is connect with hydraulic pump power intake, and hydraulic pump is connect by connection structure with engine fuselage, hydraulic
Pump inlet is connected with hydraulic tank by hydraulic pipeline, liquid outlet is connected by fluid pressure line and radiator, hydraulic work device
It connects.
2. excavator as described in claim 1, characterized in that the hydraulic power export structure includes shaft coupling, flywheel, institute
It states flywheel to be connected with the other end of power output shaft, shaft coupling one end is connect with flywheel, the shaft coupling other end and hydraulic pump power
Entering spindle connection.
3. excavator as claimed in claim 2, characterized in that the shaft coupling other end is defeated by spline fitted and hydraulic pump power
Become owner of axis connection.
4. excavator as described in claim 1, characterized in that the connection structure include left Working rack, right Working rack,
Flange terminal pad, one end and engine fuselage right side of the left Working rack are connect, and right Working rack and engine fuselage are left
Side connection, left Working rack, right Working rack the other end connect respectively with flange terminal pad, hydraulic pump and flange terminal pad company
It connects.
5. excavator as claimed in claim 4, characterized in that the left Working rack passes through bolt, positioning pin and engine
Connection on the right side of fuselage, for right Working rack by connecting on the left of bolt, positioning pin and engine fuselage, hydraulic pump passes through bolt and method
Blue terminal pad connection.
6. excavator as claimed in claim 5, characterized in that the left Working rack, right Working rack include vertically setting
Part A, the vertically disposed part B, horizontally disposed C portion set, part A is vertical with part B front end face to be connect, C portion and B
Portion's outer end face connects in sectionb for part, and C portion is equipped with reinforcing rib D.Part A is equipped with connecting hole, and part B is equipped with and engine
The connecting hole of connection, C portion are equipped with the connecting hole connecting with damper and plane, and part B is equipped with open slot E.
7. excavator as described in claim 1, characterized in that the speed changing structure includes gearbox, and the power of gearbox is defeated
Enter one end connection of the power output shaft of axis and engine, the power output shaft and upper gear box power intake of gearbox connect
It connecing, upper gear box power output end is connect with upper transmission shaft upper end, and upper transmission shaft lower end is connect with lower transmission case power intake,
Lower transmission case power output front end is connect by front propeller shaft with front steering vehicle bridge, and lower transmission case power output rear end passes after passing through
Moving axis is connect with rear axle.
8. excavator as described in claim 1, characterized in that the hydraulic work device includes hydraulic control multi-way valve, liquid
Compressing cylinder, hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810997305.2A CN109056860A (en) | 2018-08-29 | 2018-08-29 | excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810997305.2A CN109056860A (en) | 2018-08-29 | 2018-08-29 | excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109056860A true CN109056860A (en) | 2018-12-21 |
Family
ID=64758677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810997305.2A Pending CN109056860A (en) | 2018-08-29 | 2018-08-29 | excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109056860A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1500048A (en) * | 2001-04-04 | 2004-05-26 | ����ũ����ʽ���� | Crawler tractor |
| CN201695424U (en) * | 2010-04-16 | 2011-01-05 | 山推工程机械股份有限公司 | Bulldozer power device comprising engine and hydraulic pump |
| CN202180754U (en) * | 2011-08-30 | 2012-04-04 | 山东沃尔华工程机械有限公司 | Power output device of wheeled excavator |
| CN206106937U (en) * | 2016-08-31 | 2017-04-19 | 泉州鑫豪工程机械科技有限公司 | Engineering vehicle's power transmission arrangement structure |
| CN208748726U (en) * | 2018-08-29 | 2019-04-16 | 山东迈克拉克工程机械有限公司 | A kind of wheel excavator |
| CN111155573A (en) * | 2020-03-06 | 2020-05-15 | 江苏天煤机电科技有限公司 | Underground wheel type four-wheel drive explosion-proof excavator |
| CN112982542A (en) * | 2021-02-21 | 2021-06-18 | 泉州鑫豪工程机械科技有限公司 | Large-tonnage wheel type excavator transmission structure |
| CN114086626A (en) * | 2021-11-25 | 2022-02-25 | 徐州徐工挖掘机械有限公司 | Power transmission mechanism and wheel type excavator |
-
2018
- 2018-08-29 CN CN201810997305.2A patent/CN109056860A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1500048A (en) * | 2001-04-04 | 2004-05-26 | ����ũ����ʽ���� | Crawler tractor |
| CN201695424U (en) * | 2010-04-16 | 2011-01-05 | 山推工程机械股份有限公司 | Bulldozer power device comprising engine and hydraulic pump |
| CN202180754U (en) * | 2011-08-30 | 2012-04-04 | 山东沃尔华工程机械有限公司 | Power output device of wheeled excavator |
| CN206106937U (en) * | 2016-08-31 | 2017-04-19 | 泉州鑫豪工程机械科技有限公司 | Engineering vehicle's power transmission arrangement structure |
| CN208748726U (en) * | 2018-08-29 | 2019-04-16 | 山东迈克拉克工程机械有限公司 | A kind of wheel excavator |
| CN111155573A (en) * | 2020-03-06 | 2020-05-15 | 江苏天煤机电科技有限公司 | Underground wheel type four-wheel drive explosion-proof excavator |
| CN112982542A (en) * | 2021-02-21 | 2021-06-18 | 泉州鑫豪工程机械科技有限公司 | Large-tonnage wheel type excavator transmission structure |
| CN114086626A (en) * | 2021-11-25 | 2022-02-25 | 徐州徐工挖掘机械有限公司 | Power transmission mechanism and wheel type excavator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208748726U (en) | A kind of wheel excavator | |
| CN205737686U (en) | A kind of motorcar electric hydraulic power-assist steering system | |
| CN107284460A (en) | Contact net based on hybrid power transmission integrates upkeep operation car | |
| CN103010069B (en) | For the electrohydraulic control system of bucket crane | |
| CN209053154U (en) | The mounting structure of electric loader hydraulic pump | |
| CN112297813B (en) | Paddy field wheel type tractor | |
| CN206871066U (en) | Contact net synthesis upkeep operation car based on hybrid power transmission | |
| CN109056860A (en) | excavator | |
| CN104948534B (en) | Agricultural vehicle-mounted hydraulic pump station | |
| CN104373509A (en) | Angle drive device, power drive system and a single-engine hoist | |
| CN204284310U (en) | Angle transmission, power transmission system and monomotor hoist | |
| CN106515846A (en) | Electromagnetic drive locking separated hydraulic centering cylinder | |
| CN202708021U (en) | Gearbox cooling device, power system and vehicle | |
| CN205930279U (en) | Special all -wheel drive car of large -scale coiled tubing equipment in oil field | |
| CN208831094U (en) | A kind of engine power output device | |
| CN210768719U (en) | Hydraulic suction machine | |
| CN104057823B (en) | Single-engine crane and power transmission device thereof | |
| CN114454974A (en) | High-horsepower power gear shifting tractor capable of improving damping performance | |
| CN107351827A (en) | A kind of hydrostatically driven vehicle walking brakes | |
| CN212667122U (en) | Novel transmission system | |
| CN218703570U (en) | Heavy caterpillar tractor | |
| CN203419125U (en) | Air compressor baking system for road-rail vehicle | |
| CN206106937U (en) | Engineering vehicle's power transmission arrangement structure | |
| CN207059774U (en) | A kind of two-output impulse generator actuating unit | |
| CN201963388U (en) | Truck engine cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |