CN112249163A - Loader-digger and integral frame thereof - Google Patents
Loader-digger and integral frame thereof Download PDFInfo
- Publication number
- CN112249163A CN112249163A CN202011209495.0A CN202011209495A CN112249163A CN 112249163 A CN112249163 A CN 112249163A CN 202011209495 A CN202011209495 A CN 202011209495A CN 112249163 A CN112249163 A CN 112249163A
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- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 239000003921 oil Substances 0.000 claims description 27
- 230000001360 synchronised effect Effects 0.000 claims description 13
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000005341 toughened glass Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
- B62D21/186—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17 for building site vehicles or multi-purpose tractors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
- E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention discloses a loader-digger and an integral frame thereof, comprising a frame assembly (100), a hydraulic four-wheel active steering system, a power system (300), a cab assembly (400), a digging mechanism assembly (500), a loading mechanism assembly (600), a control mechanism assembly (800) and an electrical system (900), wherein the hydraulic four-wheel active steering system comprises a driving steering system (200) and a hydraulic system (700); the driving steering system (200), the power system (300), the hydraulic system (700), the operating mechanism assembly (800) and the electric system (900) are all arranged on the frame assembly (100) and powered by the power system (300). The integral frame of the loader-digger has the advantages of good stability, strong bearing capacity and small turning radius, and can prolong the service life of the multifunctional engineering vehicle, thereby improving the integral cost ratio of the vehicle.
Description
Technical Field
The invention relates to the technical field of double-end busy backhoe loaders and off-road forklifts, in particular to a double-end busy backhoe loader.
Background
The backhoe loader is a single device consisting of three pieces of construction equipment. Commonly known as "busy at both ends". During construction, the operator only needs to rotate the seat once to change the working end. The backhoe loader is compact in size compared to a large single function machine (e.g., a crawler excavator). But also can move around on various construction sites and even run on roads.
Most of the existing digging loaders with busy two ends are formed by modifying the traditional loaders, and a set of digging devices of the diggers are additionally arranged behind the traditional loaders, so that the digging loaders with busy two ends are changed into the digging loaders with busy two ends. It also inherently has some mechanical structural disadvantages of the loader. Such as articulated frames, are very prone to failure due to the loading application scenario, and are articulated with large turning radius, low stability and easy rollover at high speed.
And the cab of the tractor is used as the cab of the loader or the tractor along the front of the tractor, so that the view of one end is good, but the view of the other end is poor.
Disclosure of Invention
The invention aims to provide a loader-digger and an integral frame thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a loader-digger comprises a frame assembly, a hydraulic four-wheel active steering system power system, a cab assembly, a digging mechanism assembly, a loading mechanism assembly, a control mechanism assembly and an electrical system, wherein the hydraulic four-wheel active steering system power system comprises a driving steering system and a hydraulic system; the driving steering system, the power system, the hydraulic system, the operating mechanism assembly and the electric system are all arranged on the frame assembly, and the power system provides power.
The hydraulic four-wheel active steering system comprises a steering wheel, wherein the steering wheel is connected with a steering gear, the steering gear is connected with a gear pump through a priority valve, an A port of the steering gear is connected with an electromagnetic valve A, and a B port of the steering gear is connected with an electromagnetic valve B; the electromagnetic valve A and the electromagnetic valve B are connected with a synchronous valve, the synchronous valve is respectively connected with a front axle steering oil cylinder and a rear axle steering oil cylinder, and the front axle steering oil cylinder and the rear axle steering oil cylinder are both arranged on a driving steering axle and respectively control tires of front wheels and rear wheels.
The steering wheel comprises a steering wheel at an excavator end and a steering wheel at a loader end; the diverter includes a diverter on the excavator end and a diverter on the loader end.
The steering gear is a load-sensitive full-hydraulic steering gear.
The electromagnetic valve A and the electromagnetic valve B are both two-position six-way electromagnetic valves, and when the two electromagnetic valves are closed simultaneously, a steering wheel and a steering gear at the excavator end act; when both solenoid valves are simultaneously off, the steering wheel and steering gear on the loader side are active.
The cab assembly comprises a cab, a frame of the cab is a high-strength special-shaped pipe for a forklift overhead guard, and the frame is welded to form a whole.
Further, the lowest end of the toughened glass at the digging end of the cab is arranged on the bottom plate of the cab.
The working method of the loader-digger comprises the following steps:
when the vehicle turns to the left in the running process, the steering wheel rotates to the left, the steering wheel rotates the steering gear through the connecting mechanism, the LS port of the steering gear sends a signal to the priority valve 5, at the moment, the engine drives the gear pump to pump high-pressure hydraulic oil out to enter the steering gear 2 through the priority valve, the hydraulic oil flows out from the A port of the steering gear to enter the two-position six-way electromagnetic valve A, flows out from the B port of the steering gear to enter the two-position six-way electromagnetic valve B, enters the synchronous valve after coming out of the two-position six-way electromagnetic valves, enters the left cylinder of the front axle steering oil cylinder and the left cylinder of the rear axle steering oil cylinder through the synchronous valve, and respectively pulls and drives tires on a steering axle to complete the turning; when turning to the right, the action is reversed. The synchronous valve enables oil entering the front and rear steering oil cylinders to synchronously act, so that the phenomenon that the steering angles of the front axle and the rear axle are inconsistent due to inconsistent resistance is prevented, and the dragging phenomenon of the front axle and the rear axle is avoided.
The integral frame of the loader-digger is formed by welding a loader boom mounting seat, a frame side plate, a cab mounting seat, a front axle fixing seat, a loader boom support, a support plate, an engine support plate, a radiator support plate, a swinging support, a loader boom rotating cylinder support plate and a support leg support.
The front axle is installed on the frame assembly through bolts, and the rear axle is installed on the frame assembly through a hinged frame.
Compared with the prior art, the invention has the outstanding effects that:
the rear axle of the loader-digger is arranged on the frame assembly through the hinged frame, can swing at a maximum angle of 10 degrees, ensures that 4 tires can be attached to the ground no matter what road surface is, and further realizes the maximization of the driving force.
The integral frame of the loader-digger has the advantages of good stability, strong bearing capacity and small turning radius, and can prolong the service life of the multifunctional engineering vehicle, thereby improving the integral cost ratio of the vehicle.
The integral frame is firm and durable, has stronger bearing capacity, and is superior to the split type vehicle body in both firmness and durability compared with the traditional loader type split type vehicle body with two busy ends; compared with the tractor type double-end busy vehicle, the tractor type double-end busy vehicle enlarges tires of rear wheels, so that the forward and backward force distribution is uneven, and the stability is far inferior to that of the integral frame of the loader-digger.
Compared with the traditional articulated steering system of the loader, the hydraulic four-wheel active steering system of the loader digger has better stability and smaller turning radius, and can not generate abrasion of the articulated part of the loader, so that the service life is longer. Compared with the traditional tractor type tractor with two busy ends, the system has four-wheel steering and four-wheel driving functions, has stronger driving force in severe environment or muddy environment, and has far higher climbing capacity and crossing capacity than the traditional tractor type tractor with two busy ends.
The backhoe loader and the integral frame thereof according to the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic view of a hydraulic four-wheel active steering system of the backhoe loader of the present invention;
FIG. 2 is another schematic view of the hydraulic four-wheel active steering system of the backhoe loader of the present invention;
FIG. 3 is a hydraulic schematic diagram of the hydraulic four-wheel active steering system of the backhoe loader of the present invention;
FIG. 4 is a front view of the backhoe loader of the present invention;
FIG. 5 is a top view of the backhoe loader of the present invention;
FIG. 6 is a rear view of the backhoe loader of the present invention;
FIG. 7 is a right side view of the backhoe loader of the present invention;
FIG. 8 is a left side view of the backhoe loader of the present invention;
FIG. 9 is a bottom view of the backhoe loader of the present invention;
FIG. 10 is a perspective view of the backhoe loader of the present invention;
FIG. 11 is a front view of the one-piece frame of the backhoe loader of the present invention;
FIG. 12 is a top plan view of the one-piece frame of the backhoe loader of the present invention;
FIG. 13 is a cross-sectional view of the large arm;
FIG. 14 is a front view of the cab assembly;
FIG. 15 is a left side view of the cab assembly;
FIG. 16 is a cross-sectional view of the cab assembly.
Wherein, 1-steering wheel, 2-steering gear, 3-gear pump, 4-hydraulic torque converter, 5-priority valve, 6-synchronous valve, 7-electromagnetic valve A, 8-electromagnetic valve B, 9-tire, 10-driving steering axle, 11-front axle steering oil cylinder, 12-engine;
100-frame assembly, 200-driving steering system, 300-power system, 400-cab assembly, 500-excavating mechanism assembly, 600-loading mechanism assembly, 700-hydraulic system, 800-operating mechanism assembly and 900-electric system;
101-excavator big arm mounting seat, 102-frame side plate, 103-cab mounting seat, 104-front axle fixing seat, 105-loader big arm support, 106-support plate, 107-engine support plate, 108-radiator support plate, 109-swinging support, 110-excavator big arm rotating cylinder support plate and 110-support leg support plate;
401-frame, 402-instrument assembly, 404-seat, 405-multiway valve installation box;
501-excavator big arm, 502-pin shaft, 503-big arm oil cylinder.
Detailed Description
As shown in fig. 1-2 and 4-10, the backhoe loader specifically comprises a frame assembly 100, a hydraulic four-wheel active steering system, a power system 300, a cab assembly 400, a backhoe mechanism assembly 500, a loading mechanism assembly 600, a control mechanism assembly 800 and an electrical system 900, wherein the hydraulic four-wheel active steering system comprises a drive steering system 200 and a hydraulic system 700; the driving steering system 200, the power system 300, the hydraulic system 700, the operating mechanism assembly 800 and the electric system 900 are all arranged on the frame assembly 100 and are powered by the power system 300.
The main components of the frame assembly 100 are a unitary frame. The powertrain 300 mainly includes an engine 12, a torque converter 4, and a propeller shaft. The cab assembly 400 generally includes a cab and a seat. The digging mechanism assembly 500 mainly comprises a digging machine big arm, a bucket rod, a digging bucket and a connecting rod welded together. The loading mechanism assembly 600 mainly comprises a loader big arm, a loader small arm, a pull rod and a loader bucket. The control mechanism assembly 800 mainly includes a steering wheel, a brake, and an accelerator. The electrical system 900 mainly includes a wiring harness, a battery, a lighting lamp, a meter, a horn, and a back buzzer.
The pumps, valves and pipelines for realizing the steering function in the hydraulic four-wheel active steering system belong to a hydraulic system 700, and the steering cylinder and the driving steering axle as an actuating mechanism belong to a driving steering system 200. The steering wheel in a hydraulic four-wheel active steering system is also part of the loader assembly 600.
The loader digger is powered by an Weichai 4105 engine, then converted by a hydraulic torque converter 4, and connected to a driving steering system 200 by a transmission shaft, and then the driving steering system 200 drives tires to generate a moment for walking forwards and backwards.
When the steering wheel of the steering mechanism assembly 800 is rotated, the steering gear 2 drives the front axle steering cylinder 11 of the driving steering system 200 to control the steering of the tires 9, controls the tires of the rear axle to simultaneously rotate reversely along with the tires of the front axle through the synchronous valve 6, and performs steering according to a certain proportion according to the steering angle of the front wheels.
The hydraulic four-wheel active steering system comprises a steering wheel 1, wherein the steering wheel 1 is connected with a steering gear 2, the steering gear 2 is connected with a gear pump 3 through a priority valve 5, a port A of the steering gear 2 is connected with an electromagnetic valve A7, and a port B of the steering gear 2 is connected with an electromagnetic valve B8; the electromagnetic valve A7 and the electromagnetic valve B8 are connected with a synchronous valve 6, the synchronous valve 6 is respectively connected with a front axle steering oil cylinder 11 and a rear axle steering oil cylinder, the front axle steering oil cylinder 11 is installed on a driving steering axle 10 of front wheels, the rear axle steering oil cylinder is installed on a driving steering axle of rear wheels, and the front axle steering oil cylinder and the rear axle steering oil cylinder respectively control tires 9 of the front wheels and tires of the rear wheels.
The steering wheel 1 comprises a steering wheel at an excavator end and a steering wheel at a loader end; the diverter 2 includes a diverter on the excavator end and a diverter on the loader end.
The steering gear 2 is a load-sensitive full hydraulic steering gear.
The solenoid valves A7 and B8 are two-position six-way solenoid valves, and when the two solenoid valves are closed simultaneously, a steering wheel and a steering gear at the excavator end act; when both solenoid valves are simultaneously off, the steering wheel and steering gear on the loader side are active.
As shown in fig. 14-16, the frame 401 of the cab is made of a high-strength special pipe for the overhead guard of the forklift, and the frame 401 is welded into a whole, so that the strength is better, and the frame is not easy to deform when the vehicle rolls over, thereby protecting the life safety of a driver. Two sets of steering wheels 1 and instrument assemblies 402 are arranged in a cab, so that a driver can drive a vehicle in two directions, a seat 404 arranged in the middle is a rotatable seat, and the seat can be conveniently rotated only by pulling a handle below the seat, so that the purpose of driving the vehicle in two directions is achieved. As can be seen in fig. 15, the digging end of the cab, the tempered glass, extends to the floor of the cab so that when the digging mechanism is operated, the field of view is maximized and the operation of the bucket can be seen sitting inside the cab. And the grid is arranged above the cab, so that the strength of the cab during rollover is enhanced, and high-altitude falling objects can be effectively prevented. This is not possible with the existing two-end busy. A multiway valve installation box 405 is installed beside the seat 404 and is used for installing valves.
The working method of the backhoe loader is as follows with reference to the figures 1-3:
when the vehicle turns to the left in the running process, the steering wheel 1 is turned to the left, the steering wheel 1 rotates the steering gear 2 through the connecting mechanism, the LS port of the steering gear 2 sends a signal to the priority valve 5, at the moment, the engine 12 drives the gear pump 3 to pump high-pressure hydraulic oil which enters the steering gear 2 through the priority valve 5, the hydraulic oil flows out from the A port of the steering gear 2 to enter the two-position six-way electromagnetic valve A7 along with the rotation of the steering wheel 1, flows out from the B port of the steering gear 2 to enter the two-position six-way electromagnetic valve B8, enters the synchronous valve 6 after coming out of the two-position six-way electromagnetic valves, enters the left cylinder of the front axle steering oil cylinder 11 and the left cylinder of the rear axle steering oil cylinder through the synchronous valve 6, and the tires on the steering; when turning to the right, the action is reversed.
The main components of the frame assembly 100 are a unitary frame.
As shown in fig. 11 to 12, the integral frame of the loader-digger is formed by welding a loader-digger boom mounting seat 101, a frame side plate 102, a cab mounting seat 103, a front axle fixing seat 104, a loader boom bracket 105, a bracket plate 106, an engine bracket plate 107, a radiator support plate 108, a swing bracket 109, a loader boom rotating cylinder support plate 110 and a support leg bracket 111.
The excavator big arm mounting base 101 is used for mounting an excavator big arm. The cab mount 103 is used to mount a cab. The loader boom support 105 is used to attach the loader boom. The support pallet 106 is welded under the loader big arm support 105, and supports the loader big arm support 105 for connection and reinforcement. The swing bracket 109 is used for fixing the swing weld, and the rear axle is fixed on the swing weld. Through rocking the seam, can rock about in the certain angle, prevent that 4 wheels from being on a plane, it is unsettled to have the tire when crossing the hole highway section.
The front axle is mounted on the frame assembly 100 by bolts, and the rear axle is mounted on the frame assembly 100 by hinge brackets.
The integral frame has good stability, strong bearing capacity and small turning radius, and can prolong the service life of the multifunctional engineering vehicle, thereby improving the integral cost ratio of the vehicle.
As shown in fig. 13, the excavating mechanism assembly 500 includes a mid-cylinder system. The cylinder center-mounted system comprises a large arm cylinder 503, one end of the large arm cylinder 503 is connected to the inside of the center of a large arm 501 of the excavator through a pin shaft 502, the other end of the large arm cylinder 503 is connected to the frame assembly 100, and the large arm 501 of the excavator is fixed on the frame assembly 100.
When the stroke of the large arm oil cylinder is shortened, the large arm is gradually lifted and finally is vertical to the frame, when the stroke of the large arm oil cylinder is extended, the large arm gradually falls down and rotates downwards, and when the stroke reaches the maximum, the maximum digging depth is reached.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A backhoe loader, comprising: the four-wheel active hydraulic steering system comprises a frame assembly (100), a hydraulic four-wheel active steering system, a power system (300), a cab assembly (400), an excavating mechanism assembly (500), a loading mechanism assembly (600), a control mechanism assembly (800) and an electrical system (900), wherein the hydraulic four-wheel active steering system comprises a driving steering system (200) and a hydraulic system (700); the driving steering system (200), the power system (300), the hydraulic system (700), the operating mechanism assembly (800) and the electric system (900) are all arranged on the frame assembly (100) and powered by the power system (300).
2. The backhoe loader of claim 1, wherein: the hydraulic four-wheel active steering system comprises a steering wheel (1), wherein the steering wheel (1) is connected with a steering gear (2), the steering gear (2) is connected with a gear pump (3) through a priority valve (5), an A port of the steering gear (2) is connected with an electromagnetic valve A (7), and a B port of the steering gear (2) is connected with an electromagnetic valve B (8); the electromagnetic valve A (7) and the electromagnetic valve B (8) are connected with a synchronous valve (6), the synchronous valve (6) is respectively connected with a front axle steering oil cylinder (11) and a rear axle steering oil cylinder, and the front axle steering oil cylinder (11) and the rear axle steering oil cylinder are both installed on a driving steering axle and respectively control tires of front wheels and rear wheels.
3. The backhoe loader of claim 2, wherein: the steering wheel (1) comprises a steering wheel at an excavator end and a steering wheel at a loader end; the diverter (2) comprises a diverter at the excavator end and a diverter at the loader end.
4. The backhoe loader of claim 3, wherein: the steering gear (2) is a load-sensitive full-hydraulic steering gear.
5. The backhoe loader of claim 4, wherein: the electromagnetic valve A (7) and the electromagnetic valve B (8) are both two-position six-way electromagnetic valves, and when the two electromagnetic valves are closed simultaneously, a steering wheel and a steering gear at the excavator end act; when both solenoid valves are simultaneously off, the steering wheel and steering gear on the loader side are active.
6. The backhoe loader of claim 1, wherein: the cab assembly (400) comprises a cab, wherein a frame (401) of the cab is a high-strength special pipe for a forklift overhead guard, and the frame (401) is integrally formed through welding.
7. The backhoe loader of claim 6, wherein: the lowest end of the toughened glass at the digging end of the cab is arranged on the bottom plate of the cab.
8. The method of operating a backhoe loader of any of claims 1-7, wherein: when the vehicle turns to the left in running, the steering wheel (1) is turned to the left, the steering wheel (1) rotates the steering gear (2) through the connecting mechanism, the LS port of the steering gear (2) sends a signal to the priority valve (5), at the moment, the engine (12) drives the gear pump (3) to pump high-pressure hydraulic oil out to enter the steering gear (2) through the priority valve (5), along with the rotation of the steering wheel (1), the hydraulic oil flows out from the A port of the steering gear (2) to enter the two-position six-way electromagnetic valve A (7), flows out from the B port of the steering gear (2) to enter the two-position six-way electromagnetic valve B (8), and enters the synchronizing valve (6) after flowing out from the two-position six-, enters a left cylinder of a front axle steering oil cylinder (11) and a left cylinder of a rear axle steering oil cylinder through a synchronous valve (6), the tires on the driving steering axle are respectively pulled by the two steering oil cylinders to complete the steering action; when turning to the right, the action is reversed.
9. The backhoe loader integral frame of any of claims 1-7, wherein: the integral frame is formed by welding a digging machine large arm mounting seat (101), a frame side plate (102), a cab mounting seat (103), a front axle fixing seat (104), a loading machine large arm support (105), a support plate (106), an engine support plate (107), a radiator support plate (108), a swinging support (109), a digging machine large arm rotating cylinder support plate (110) and a support leg support (111).
10. The unitary frame of claim 9, wherein: the front axle is installed on the frame assembly (100) through bolts, and the rear axle is installed on the frame assembly (100) through a hinged frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011209495.0A CN112249163A (en) | 2020-11-03 | 2020-11-03 | Loader-digger and integral frame thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011209495.0A CN112249163A (en) | 2020-11-03 | 2020-11-03 | Loader-digger and integral frame thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112249163A true CN112249163A (en) | 2021-01-22 |
Family
ID=74268754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011209495.0A Pending CN112249163A (en) | 2020-11-03 | 2020-11-03 | Loader-digger and integral frame thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112249163A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201272278Y (en) * | 2008-07-14 | 2009-07-15 | 尹中杰 | Articulated mine dump truck |
| DE102010049986A1 (en) * | 2010-10-19 | 2012-04-19 | Thomas Sauer | Heavy wheel mobile hollow vehicle for two-direction-operation in mining industry, has hollow body, discharge chute front and opposite lying load edge front with broad sill |
| CN204645140U (en) * | 2015-05-25 | 2015-09-16 | 安徽宏昌机电装备制造有限公司 | A kind of hydraulic control system of loader-digger |
| CN106741158A (en) * | 2016-12-29 | 2017-05-31 | 芜湖佳景科技有限公司 | Bi-directional vehicle steering |
| CN206768892U (en) * | 2017-02-07 | 2017-12-19 | 林东星 | One kind, which is excavated, loads all-in-one |
| CN213948573U (en) * | 2020-11-03 | 2021-08-13 | 山东博峻智能科技有限公司 | Loader-digger and integral frame thereof |
-
2020
- 2020-11-03 CN CN202011209495.0A patent/CN112249163A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201272278Y (en) * | 2008-07-14 | 2009-07-15 | 尹中杰 | Articulated mine dump truck |
| DE102010049986A1 (en) * | 2010-10-19 | 2012-04-19 | Thomas Sauer | Heavy wheel mobile hollow vehicle for two-direction-operation in mining industry, has hollow body, discharge chute front and opposite lying load edge front with broad sill |
| CN204645140U (en) * | 2015-05-25 | 2015-09-16 | 安徽宏昌机电装备制造有限公司 | A kind of hydraulic control system of loader-digger |
| CN106741158A (en) * | 2016-12-29 | 2017-05-31 | 芜湖佳景科技有限公司 | Bi-directional vehicle steering |
| CN206768892U (en) * | 2017-02-07 | 2017-12-19 | 林东星 | One kind, which is excavated, loads all-in-one |
| CN213948573U (en) * | 2020-11-03 | 2021-08-13 | 山东博峻智能科技有限公司 | Loader-digger and integral frame thereof |
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