CN215759239U - Multifunctional engineering vehicle - Google Patents

Abstract

The utility model provides a multifunctional engineering vehicle and an accessory assembly reloading method thereof, and the multifunctional engineering vehicle comprises an engineering vehicle main body, wherein the engineering vehicle main body comprises a vehicle body main body and a vehicle frame main body, the vehicle frame main body is provided with a connecting structure, the connecting structure is connected with a power arm assembly, the power arm assembly is provided with a quick-change device, the quick-change device is connected with an accessory, the engineering vehicle main body is provided with an oil source module, and the vehicle frame main body is also provided with a driving assembly and a steering control system; the frame main body is integrally formed so as to ensure that the vehicle runs stably; the accessory can be quickly replaced by adopting the quick-change device, so that the replacement is more convenient and faster; the oil source module can provide hydraulic oil for construction accessories and hydraulic tools, is convenient for field use, and enables the vehicle to run in various steering modes through the matching use of the driving assembly and the steering control system.

Description

Multifunctional engineering vehicle

Technical Field

The utility model relates to the technical field of engineering vehicle equipment, in particular to a multifunctional engineering vehicle.

Background

With the high-speed development of economy, the demand and the use requirements of engineering machinery vehicles are increased; the arm of the common engineering machine tool in market includes loader, fork truck, forklift, excavator etc. and the customer can select according to the actual conditions and the production demand of self, but, because the diversification of industry and complicated, people pursue production quality and production efficiency more and more, and the tradition has the engineering vehicle of single function and usage can not satisfy the demand of current production and construction far away, consequently, current engineering vehicle exposes following drawback:

1. the existing engineering vehicle can select specific accessories according to factors such as construction working conditions, construction environments, self structures and the like before use, has single function and use, can only complete specific operation scenes, and cannot meet the operation requirements of various working conditions;

2. the accessory on the existing engineering vehicle is relatively complex in disassembly and installation process, the requirement on the matching precision between the accessory and the vehicle is relatively high, the assembly difficulty is increased, the time and the energy of an operator are greatly wasted, and therefore the efficiency is not high, and the practicability is not strong.

3. The existing engineering vehicle adopts a front frame and rear frame hinged structure, when the engineering vehicle turns, the front frame and the rear frame rotate around the center of a hinged shaft, the turning radius is large, the operation in a narrow space is not facilitated, the stability is not high, and the construction operation is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to solve the problems in the prior art and provide a multifunctional engineering vehicle.

In order to solve the technical problems, the utility model adopts the technical scheme that: a multifunctional engineering vehicle comprises an engineering vehicle main body, wherein the engineering vehicle main body comprises a vehicle body main body and a vehicle frame main body connected with the bottom of the vehicle body main body, a connecting structure is arranged at the end part of the vehicle frame main body, the connecting structure is connected with one end of a power arm assembly, a quick-change device is arranged at the other end of the power arm assembly, an auxiliary accessory is connected to the quick-change device in a matched manner, the auxiliary accessory is driven by the power arm assembly to work, an oil source module is arranged on the engineering vehicle main body, the oil source module is used for driving a construction accessory and a hydraulic tool to work, a driving assembly and a steering control system are arranged on the vehicle frame main body, the driving assembly is used for driving the engineering vehicle main body to move, and the steering control system is used for controlling the steering mode of the driving assembly;

the power arm assembly is set as a lifting arm assembly or a telescopic arm assembly;

the auxiliary accessory is provided with an assembly component and a cross beam, the assembly component is provided with a plurality of groups of assembly holes and assembly grooves which are used for being matched with the quick-change device, and the cross beam is used for reinforcing and limiting the auxiliary accessory.

Further, the frame main part includes the frame anterior segment that is connected with connection structure, the frame middle section that is connected with the frame anterior segment, and the frame back end that is connected with the frame middle section, frame anterior segment and frame back end form the holding chamber on the frame middle section, be provided with the resettlement groove on the frame back end, holding chamber and resettlement groove are arranged in the engineering vehicle main part the holding and the installation of part and equipment.

Furthermore, the frame front section, the frame middle section and the frame rear section are integrally formed.

Furthermore, the connection structure includes a first rotation axis, a second rotation axis, a third rotation axis and a fourth rotation axis respectively arranged on the front section of the frame, the first rotation axis, the second rotation axis and the fourth rotation axis are used for installing the lifting arm assembly on the front section of the frame, and the second rotation axis, the third rotation axis and the fourth rotation axis are used for installing the telescopic arm assembly on the front section of the frame.

Further, the lifting arm assembly comprises a lifting arm, a rocker arm, a driving rod, a lifting cylinder and a rotating cylinder, one end of the lifting arm is rotationally connected with the second rotating shaft, the other end of the lifting arm is rotationally connected to the quick-change device, the lower end of the rocker arm is rotationally connected to the lifting arm, the upper end of the rocker arm is rotationally connected with the driving rod, the middle of the rocker arm is rotationally connected with the output end of a piston rod of the rotating cylinder, the other end of the driving rod is rotationally connected to the quick-change device, the rotating cylinder is rotationally connected with the first rotating shaft, the lifting cylinder is rotationally connected with the fourth rotating shaft, and the output end of the piston rod of the lifting cylinder is rotationally connected with one end of the rocker arm and the lifting arm respectively.

Further, the accessory is configured as a bucket.

Furthermore, the bucket comprises a push shovel, a clamping bucket and a driving cylinder, the push shovel is connected with the quick-change device, the clamping bucket is rotatably connected to the push shovel through a pin shaft assembly, the driving cylinder is rotatably connected to the push shovel, the output end of a piston rod of the driving cylinder is rotatably connected with the clamping bucket, and the driving cylinder is used for driving the push shovel and the clamping bucket to be unfolded and closed.

Furthermore, the telescopic arm assembly comprises an outer frame, an inner frame, a telescopic cylinder, a power cylinder, a follow-up cylinder, a swing cylinder, a first connecting rod and a second connecting rod, one end of the outer frame is rotationally connected with the second rotating shaft, the inner frame is matched and slidably arranged in the outer frame, the follow-up cylinder is rotationally connected with the third rotating shaft, the output end of a piston rod of the follow-up cylinder is rotationally connected with the other end of the outer frame, the power cylinder is rotationally connected with the fourth rotating shaft, the output end of the piston rod of the power cylinder is rotationally connected with the other end of the outer frame, the telescopic cylinder is rotationally connected with one end of the outer frame, the output end of the piston rod of the telescopic cylinder is rotationally connected with one end of the inner frame close to an accessory, the swing cylinder is arranged in the inner frame and is rotationally connected with the inner frame, the output end of the piston rod of the swing cylinder is rotationally connected with the upper end of the first connecting rod, and the middle of the first connecting rod is rotationally connected with the other end of the inner frame, the lower end of the quick-change device is rotationally connected with one end of a second connecting rod, and the other end of the second connecting rod is rotationally connected with the quick-change device.

Further, the accessory is arranged as a bottom fork.

Furthermore, the quick-change device comprises an upper connecting pin column, a lower connecting pin column, a connecting frame, a cylinder barrel, a limiting sleeve, a piston rod, a first oil supply pipeline and a second oil supply pipeline, wherein the end part of the upper connecting pin column is matched and embedded in an assembly groove on the assembly component, the lower connecting pin column is rotatably arranged at the end part of the power arm assembly, a plurality of groups of mounting holes are arranged on the connecting frame, the connecting frame is matched and sleeved on the upper connecting pin column and the lower connecting pin column through the plurality of groups of mounting holes, the cylinder barrel is arranged on the connecting frame, the limiting sleeve is matched and embedded in the cylinder barrel, a rod body of the piston rod is matched and slidably arranged in the limiting sleeve, one end of the piston rod is matched and slidably arranged in the cylinder barrel, the other end of the piston rod is used for connecting an accessory, and the output end of the first oil supply pipeline and the output end of the second oil supply pipeline are both communicated with the cylinder barrel, the first oil supply pipeline is used for driving the piston rod to extend, and the second oil supply pipeline is used for driving the piston rod to contract.

Further, the oil source module comprises a module body, and a hydraulic oil port device and a switching control device which are respectively arranged on the module body, wherein the hydraulic oil port device is used for conveying hydraulic oil, and the switching control device is used for controlling and switching the conveying amount of the hydraulic oil.

Further, be provided with drive unit and hydraulic oil source on the frame main part, the drive unit sets up to internal-combustion engine drive unit, electric drive unit or hydraulic motor drive unit, and this drive unit is used for providing power for the drive assembly, the hydraulic oil source is used for providing hydraulic oil for power arm assembly, quick change device, oil source module and steering control system.

Furthermore, the drive assembly comprises a plurality of drive wheel sets and a transfer case which are respectively connected to the bottom of the frame main body, the drive wheel sets are arranged into a plurality of groups, the input ends of the plurality of groups of drive wheel sets are connected with the output end of the transfer case, and the input end of the transfer case is connected with the output end of the drive unit.

Further, the driving wheel set comprises a driving axle assembly, a steering oil cylinder, a pull rod, a steering knuckle and a tire, the driving axle assembly is connected to the bottom of the frame main body, the steering oil cylinder is connected to the driving axle assembly, two ends of the pull rod are respectively hinged to the output end of a piston rod of the steering oil cylinder and the steering knuckle, the steering knuckle is arranged on the driving axle assembly, the tire rotates to be connected with the steering knuckle, and the input end of the tire is connected with the output end of the driving axle assembly.

Further, the steering control system is provided as a solenoid valve control unit for switching the steering modes of the plurality of sets of driving wheels.

Furthermore, a cab is arranged on the vehicle body main body, a vehicle door and an escalator are respectively arranged on two sides of the cab, and the escalator is located below the vehicle door.

The utility model has the advantages and positive effects that:

1. the lifting arm assembly or the telescopic arm assembly can be connected to the frame main body through the connecting structure arranged at the front section of the frame, so that the device can be used for shoveling and transporting, transporting and working at high altitude, the application range of the device is expanded, and the working capacity of equipment is improved;

2. the frame main body is integrally formed, so that the production and the processing are convenient, the manufacturing difficulty and the cost are reduced, the connection among the front frame section, the middle frame section and the rear frame section is more compact, the gravity center of the frame main body cannot change along with the movement of the engineering truck main body in the movement process of the frame main body, the stability of a vehicle in operation is ensured, and the frame main body is provided with the accommodating cavity and the accommodating groove, so that components and equipment in the truck main body can be placed and installed, and can be effectively protected;

3. the quick-change device is simple to operate and convenient and fast to operate, can quickly change the accessory connected with the end part of the power arm assembly, is convenient to disassemble and install, reduces the operation difficulty of the accessory, saves the replacement time, and enables the accessory to be replaced by other working devices under the condition of unchanged frame structure, thereby meeting the requirement of multi-working-condition operation;

4. the oil source module is adopted, so that a hydraulic power source can be provided for construction accessories and hydraulic tools, and the construction operation in a wild area is facilitated; meanwhile, the extension length of a piston rod of the steering oil cylinder is controlled through the steering control system, and the steering mode of the driving wheel set can be adjusted, so that the main body of the engineering truck realizes the steering modes of front wheel steering, multi-wheel-set same-phase steering, multi-wheel-set different-phase steering and the like, and the engineering truck is more flexible and efficient to apply;

5. when the lifting arm is adopted for working, the clamping bucket and the push shovel in the bucket are driven by the driving cylinder to be unfolded and closed, the requirements of various construction operations can be met, and when the push shovel and the clamping bucket are closed, the related operations such as shovel loading, carrying, unloading, pushing and the like can be realized; when the push shovel and the clamp bucket are unfolded, the operation of grabbing, picking or pulling and placing the target material can be performed, the functions are various, the operation is flexible, the production or construction efficiency is improved, and the practicability is high.

Drawings

FIG. 1 is a schematic perspective view of the structure in example 1;

FIG. 2 is a schematic structural view of the frame body;

FIG. 3 is a schematic structural view of a connection structure;

FIG. 4 is a schematic view of the connection between the lift arm assembly and the bucket 1;

FIG. 5 is a schematic illustration of the connection between the lift arm assembly and the bucket 2;

FIG. 6 is a schematic structural view of the quick-change device;

FIG. 7 is a schematic structural view of an oil source module;

FIG. 8 is a schematic structural view of the drive assembly;

FIG. 9 is a schematic perspective view of the structure in example 2;

FIG. 10 is a schematic view of the connection between the telescopic arm assembly and the bottom fork 1;

fig. 11 is a schematic view of the connection between the telescopic arm assembly and the bottom fork 2.

In the figure: 1. a vehicle body main body; 2. a frame main body; 201. a front frame section; 202. a middle frame section; 203. A rear frame section; 204. an accommodating cavity; 205. a placing groove; 3. a connecting structure; 301. a first rotating shaft; 302. a second rotating shaft; 303. a third rotating shaft; 304. a fourth rotating shaft; 4. a lift arm assembly; 401. a lift arm; 402. a rocker arm; 403. a drive rod; 404. a lift cylinder; 405. rotating the cylinder; 5. a telescopic arm assembly; 51. an outer frame; 52. an inner frame; 53. a telescopic cylinder; 54. a power cylinder; 55. A slave cylinder; 56. a swing cylinder; 57. a first link; 58. a second link; 6. a quick-change device; 601. An upper connecting pin; 602. a lower connecting pin; 603. a connecting frame; 604. a cylinder barrel; 605. a limiting sleeve; 606. a piston rod; 607. a first oil supply line; 608. a second oil supply line; 7. a bucket; 701. Pushing and shoveling; 702. clamping a bucket; 703. a drive cylinder; 8. a bottom fork; 9. an oil source module; 901. a module body; 902. a hydraulic oil port device; 903. a switching control device; 10. a drive assembly; 1010. a driving wheel set; 1011. a drive axle assembly; 1012. a steering cylinder; 1013. a pull rod; 1014. a knuckle; 1015. a tire; 1020. a transfer case; 11. assembling the components; 12. a cross beam; 13. a cab; 14. a vehicle door; 15. an escalator.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description and accompanying drawings that illustrate the utility model.

Example 1:

as shown in fig. 1 and fig. 2, a multifunctional engineering vehicle comprises an engineering vehicle main body, the engineering vehicle main body comprises a vehicle main body 1 and a vehicle frame main body 2 connected with the bottom of the vehicle main body, a connecting structure 3 is arranged at the end of the vehicle frame main body 2, the connecting structure 3 is connected with one end of a power arm assembly, a quick-change device 6 is arranged at the other end of the power arm assembly, an accessory is connected to the quick-change device 6 in a matching manner, the accessory is driven by the power arm assembly to work, an oil source module 9 is arranged on the engineering vehicle main body, the oil source module 9 is used for driving a construction accessory and a hydraulic tool to work, a driving assembly 10 and a steering control system are arranged on the vehicle frame main body 2, the driving assembly 10 is used for driving the engineering vehicle main body to move, the steering control system is used for controlling the steering mode of the driving assembly 10, the vehicle frame main body 2 is used for carrying the vehicle main body 1 and installing the power arm assembly, meanwhile, the power arm assembly can be installed through the connecting structure 3 arranged at the end part of the power arm assembly, so that the structure is compact and the work is stable; through the tip installation quick change device 6 at the power arm assembly, can realize the quick installation and the dismantlement of accessory, the assemble duration has been saved, through installation oil source module 9 in the machineshop car main part, can provide power for construction accessory and hydraulic tool, thereby make hydraulic tool can carry out work and operation in the job site, utilize drive assembly 10 to drive whole device and move, simultaneously, utilize the steering control system can control the mode that turns to of drive assembly 10, make drive arrangement can move with the mode that turns to of difference, in order to satisfy different user demands.

As shown in fig. 5, the power arm assembly is arranged as the lifting arm assembly 4, so that the shovel loading and the transportation work can be realized, the accessory is provided with the assembling component 11 and the cross beam 12, the assembling component 11 is provided with an assembling hole and an assembling groove which are used for being matched with the quick-change device 6, the assembling component 11 and the quick-change device 6 are matched for use, the quick disassembly and the installation of the accessory and the quick-change device 6 can be realized, the cross beam 12 is assembled on the accessory, the accessory can be reinforced, the bearing capacity and the service life of the accessory are improved, meanwhile, the accessory can be limited, and the excessive overturning in the using process is prevented.

As shown in fig. 2, the frame main body 2 includes a frame front section 201 connected to the connecting structure 3, a frame middle section 202 connected to the frame front section 201, and a frame rear section 203 connected to the frame middle section 202, the frame front section 201 and the frame rear section 203 form an accommodating chamber 204 on the frame middle section 202, the frame rear section 203 is provided with a placing groove 205, and the accommodating chamber 204 and the placing groove 205 are used for accommodating and mounting components and equipment in the engineering vehicle main body; frame anterior segment 201, frame middle section 202 and frame back end 203 set up and are integrated into one piece, through adopting the integrated into one piece design, be convenient for produce and processing, reduce the preparation degree of difficulty and cost of manufacture, make the connection between the three compacter, and frame main part 2 can not change along with the removal of machineshop car main part at the motion in-process focus, guarantee vehicle motion's stability, and be provided with holding chamber 204 and arrangement groove 205 on frame main part 2, can place and install the part in the automobile body main part 1 and equipment, protect its inside part and equipment not damaged.

As shown in fig. 1 and fig. 3, the connection structure 3 includes that the connection structure 3 includes a first rotation axis 301, a second rotation axis 302, a third rotation axis 303 and a fourth rotation axis 304 respectively disposed on the frame front section 201, the first rotation axis 301, the second rotation axis 302 and the fourth rotation axis 304 are used for installing the lifting arm assembly 4 on the frame front section 201, and the frame front section 201 and the lifting arm assembly 4 are assembled and connected by using the first rotation axis 301, the second rotation axis 302 and the fourth rotation axis 304 in the connection structure 3, so that the rotation connection between the two can be realized, and the assembly method is simple, and the rotation connection between the lifting arm assembly 4 and the frame front section 201 can be completed only by respectively penetrating the first rotation axis 301, the second rotation axis 302 and the fourth rotation axis 304 into the lifting arm assembly 4 and the frame front section 201.

As shown in fig. 4 and 5, the lift arm assembly 4 includes a lift arm 401, a rocker arm 402, a driving rod 403, a lift cylinder 404 and a rotating cylinder 405, one end of the lift arm 401 is rotatably connected to the second rotating shaft 302, the other end of the lift arm 401 is rotatably connected to the quick-change device 6, the lower end of the rocker arm 402 is rotatably connected to the lift arm 401, the upper end of the rocker arm is rotatably connected to the driving rod 403, the middle of the rocker arm 402 is rotatably connected to the output end of a piston rod 606 of the rotating cylinder 405, the other end of the driving rod 403 is rotatably connected to the quick-change device 6, the rotating cylinder 405 is rotatably connected to the first rotating shaft 301, the lift cylinder 404 is rotatably connected to the fourth rotating shaft 304, the output end of the piston rod 606 is rotatably connected to one end of the rocker arm 402 and the lift arm 401 respectively, the lift arm assembly 4 controls the power arm to move while driving the accessory to move towards the direction of the shoveled target material, until the target material enters the accessory, at the moment, the length of a piston rod 606 of the rotating cylinder 405 is controlled to drive the accessory to turn upwards, and the lifting cylinder 404 is controlled to drive the lifting arm 401 to ascend, so that the shovel loading operation on the target material is realized; when the unloading is needed, the rotary cylinder 405 is controlled to drive the accessory to turn in the direction opposite to the shoveling direction, so that the target material is separated from the accessory, and the unloading of the target material is completed.

As shown in fig. 4 and 5, the attachment is provided as a bucket 7; the bucket 7 comprises a push shovel 701, a clamping bucket 702 and a driving cylinder 703, the push shovel 701 is connected with the quick-change device 6, the clamping bucket 702 is rotatably connected to the push shovel 701 through a pin shaft assembly, the driving cylinder 703 is rotatably connected to the push shovel 701, the output end of a piston rod 606 of the driving cylinder 703 is rotatably connected with the clamping bucket 702, the driving cylinder 703 is used for driving the push shovel 701 and the clamping bucket 702 to open and close, the clamping bucket 702 and the push shovel 701 are driven to open and close by controlling the extension length of the piston rod 606 of the driving cylinder 703, when the clamping bucket 702 and the push shovel are closed, the clamping bucket 702 and the push shovel form a whole, the whole can be used for loading, carrying, shoveling, lifting and the like, when the clamping bucket 702 and the push shovel 701 are opened, the operations of clamping, picking, spreading, pulling, laying, pulling and the like of target materials can be realized, and the flexibility is good.

As shown in fig. 6, the quick-change device 6 includes an upper connecting pin 601, a lower connecting pin 602, a connecting frame 603, a cylinder 604, a limiting sleeve 605, a piston rod 606, a first oil supply pipeline 607 and a second oil supply pipeline 608, wherein the end of the upper connecting pin 601 is fittingly embedded in a fitting groove on the fitting assembly 11, the lower connecting pin 602 is rotatably disposed at the end of the power arm assembly, a plurality of sets of mounting holes are disposed on the connecting frame 603, the connecting frame 603 is fittingly sleeved on the upper connecting pin 601 and the lower connecting pin 602 through the plurality of sets of mounting holes, the cylinder 604 is disposed on the connecting frame 603, the limiting sleeve 605 is fittingly embedded in the cylinder 604, the rod body of the piston rod 606 is fittingly and slidably disposed in the limiting sleeve 605, one end of the piston rod 606 is fittingly and slidably disposed in the cylinder 604, the other end thereof is used for connecting an accessory, the output end of the first pipeline 607 and the output end of the second oil supply pipeline 608 are both communicated with the cylinder 604, when the accessory needs to be replaced, the currently used accessory is detached first, the second oil supply pipeline 608 is used for conveying hydraulic oil into the cylinder 604, so that a cavity formed among the piston rod 606, the cylinder sleeve and the stop collar 605 is filled with hydraulic oil, the piston cylinder is driven to move towards the direction close to the middle of the cylinder 604 along with the continuous increase of the hydraulic oil, the leaking part of the piston rod 606 is reduced until the piston rod is completely separated from the mounting hole formed in the assembly component 11, the end part of the power arm assembly is controlled to move at the moment, and the connecting pin shaft is driven to be separated from the assembly groove of the assembly component 11, the original accessory is disassembled; the required accessory is replaced, the power arm assembly is used for driving the quick-change device 6 to move, the upper connecting pin shaft is embedded into the assembly groove again, the first oil supply pipeline 607 is used for conveying hydraulic oil into the cylinder 604, the piston slidably arranged in the cylinder 604 is pushed to move in the direction away from the center of the cylinder 604 along with the gradual increase of the hydraulic oil, the piston rod 606 is extended gradually and penetrates into the mounting hole gradually, and therefore the replacement of the accessory is completed.

As shown in fig. 7, the oil source module 9 includes a module body 901, a hydraulic oil port device 902 and a switching control device 903, where the hydraulic oil port device 902 is arranged on the module body 901, the switching control device 903 is used for controlling and switching the delivery amount of the hydraulic oil, and the oil source module 9 is used for providing hydraulic pressure required by the hydraulic tool for operation. When hydraulic tool is needed, the user connects the hydraulic oil port device 902 in the oil source module 9 with the hydraulic tool, and at this time, the oil source module 9 provides hydraulic oil for the hydraulic tool, and the flow of the hydraulic oil can be adjusted according to actual requirements through the switching control device 903, so that the hydraulic tool can implement operation.

As shown in fig. 8, the frame body 2 is provided with a driving unit and a hydraulic oil source, the driving unit is provided as an internal combustion engine driving unit, an electric driving unit or a hydraulic motor driving unit, and the driving unit is used for providing power for the driving assembly 10, and when the internal combustion engine driving unit is adopted, a strong driving force can be provided for the driving assembly 10; when the electric driving unit is adopted, polluting tail gas cannot be generated, and the influence on the environment is small; when the hydraulic motor driving unit is adopted, the occupied space of the equipment is small, the dustproof performance is good, the overload resistance is strong, and the practicability of the driving unit is effectively improved; the hydraulic oil source is used for providing hydraulic oil for the power arm assembly, the quick-change device 6, the oil source module 9 and the steering control system, and can enable all parts needing the hydraulic oil to supply energy to work normally.

As shown in fig. 8, the driving assembly 10 includes a plurality of driving wheel sets 1010 and a plurality of transfer cases 1020 respectively connected to the bottom of the frame body 2, the driving wheel sets 1010 are arranged in a plurality of groups, the input ends of the plurality of groups of driving wheel sets 1010 are connected to the output end of the transfer case 1020, and the input end of the transfer case 1020 is connected to the output end of the driving unit; the driving wheel set 1010 comprises a driving axle assembly 1011, a steering oil cylinder 1012, a pull rod 1013, a steering knuckle 1014 and a tire 1015, wherein the driving axle assembly 1011 is connected to the bottom of the frame main body 2, the steering oil cylinder 1012 is connected to the driving axle assembly 1011, two ends of the pull rod 1013 are respectively hinged to the output end of a piston rod 606 of the steering oil cylinder 1012 and the steering knuckle 1014, the steering knuckle 1014 is arranged on the driving axle assembly 1011, the tire 1015 rotates to be connected with the steering knuckle 1014, and the input end of the tire 1015 is connected with the output end of the driving axle assembly 1011; the steering control system is set as an electromagnetic valve control unit which is used for switching the steering modes of a plurality of groups of driving wheel sets 1010, the on-off of the electromagnetic valve control unit is used for controlling the oil supply condition of a hydraulic oil source to a steering oil cylinder 1012, when the hydraulic oil source is switched on, hydraulic oil enters the steering oil cylinder 1012 and pushes the output end of a piston rod 606 of the steering oil cylinder 1012 to move so as to drive a pull rod 1013 hinged with the pull rod 1013 to move, and the other end of the pull rod 1013 is hinged to a steering knuckle 1014, so that the steering knuckle 1014 can drive a tire 1015 to steer, and various steering modes can be realized by controlling the steering conditions of various groups of tires 1015.

As shown in fig. 1, a cab 13 is provided on a vehicle body 1, the cab 13 provides a driving space for a driver, a door 14 and an escalator 15 are provided on both sides of the cab 13, respectively, and the escalator 15 is located below the door 14.

Example 2:

as shown in fig. 9, the difference from embodiment 1 is that the power arm assembly is provided as a telescopic arm assembly 5, so that it can be used for transportation or high-altitude work; be provided with assembly subassembly 11 and crossbeam 12 on the appurtenance, set up on the assembly subassembly 11 and be used for with quick change device 6 matched with pilot hole and assembly groove, crossbeam 12 is used for consolidating and spacing the appurtenance, cooperation through assembly subassembly 11 and quick change device 6 is used, can realize appurtenance and quick change device 6's quick dismantlement and installation, through assembly crossbeam 12 on the appurtenance, can consolidate the appurtenance, improve its bearing capacity and life, also can carry on spacingly by the appurtenance simultaneously, prevent excessive lifting from appearing in its use.

As shown in fig. 3 and fig. 11, the connection structure 3 includes that the connection structure 3 includes a first rotation axis 301, a second rotation axis 302, a third rotation axis 303 and a fourth rotation axis 304 respectively disposed on the frame front section 201, the second rotation axis 302, the third rotation axis 303 and the fourth rotation axis 304 are used for installing the telescopic arm assembly 5 on the frame front section 201, and the frame front section 201 and the telescopic arm assembly 5 are assembled and connected by using the first rotation axis 301, the second rotation axis 302 and the fourth rotation axis 304 in the connection structure 3, so that the two can be rotatably connected, and the assembly method is simple, and the rotatable connection between the telescopic arm assembly 5 and the frame front section 201 can be completed only by respectively penetrating the first rotation axis 301, the second rotation axis 302 and the fourth rotation axis 304 into the telescopic arm assembly 5 and the frame front section 201.

As shown in fig. 10 and 11, the telescopic arm assembly 5 includes an outer frame 51, an inner frame 52, a telescopic cylinder 53, a power cylinder 54, a follower cylinder 55, a swing cylinder 56, a first connecting rod 57 and a second connecting rod 58, one end of the outer frame 51 is rotatably connected to the second rotating shaft 302, the inner frame 52 is slidably inserted into the outer frame 51 in a matching manner, the follower cylinder 55 is rotatably connected to the third rotating shaft 303, an output end of a piston rod 606 thereof is rotatably connected to the other end of the outer frame 51, the power cylinder 54 is rotatably connected to the fourth rotating shaft 304, an output end of a piston rod 606 thereof is rotatably connected to the other end of the outer frame 51, the telescopic cylinder 53 is rotatably connected to one end of the outer frame 51, an output end of a piston rod 606 thereof is rotatably connected to one end of the inner frame 52 near accessories, the swing cylinder 56 is disposed inside the inner frame 52, the swing cylinder 56 is rotatably connected to the inner frame 52, an output end of the piston rod 606 thereof is rotatably connected to an upper end of the first connecting rod 57, the middle part of the first connecting rod 57 is rotatably connected to the other end of the inner frame 52, the lower end of the first connecting rod 57 is rotatably connected with one end of a second connecting rod 58, and the other end of the second connecting rod 58 is rotatably connected with the quick-change device 6; the accessory is set as a bottom fork 8, the telescopic arm assembly 5 controls the main body of the engineering vehicle to move in the using process, the working end of the bottom fork 8 enters a target material, the driving assembly 10 is controlled to drive the bottom fork 8 to completely enter the target material, the inner frame 52 and the outer frame 51 are controlled to ascend through the power cylinder 54 and reach a certain position, the telescopic cylinder 53 is controlled to drive the inner frame 52 to move, the inner frame 52 extends outwards relative to the outer frame 51 until the inner frame extends to a placing area, and therefore the transportation of the target material is completed.

In addition, the assembly 11 between the assembly 11 and the shovel blade 701 and the bottom fork 8, the escalator 15 and the car body 1 can be connected in a welding mode, and the connection can be realized by metal pins between the lifting arm 401 and the rocker arm 402, between the output end of the piston rod 606 of the rotating cylinder 405 and the rocker arm 402, between the rocker arm 402 and the lifting cylinder 404 of the driving rod 403, between the rocker arm 402 and the driving rod 403, between the outer frame 51 and the output end of the piston rod 606 of the power cylinder 54, between the outer frame 51 and the output end of the piston rod 606 of the follow-up cylinder 55, between the output end of the piston rod 606 of the swing cylinder 56 and the first connecting rod 57, and between the first connecting rod 57 and the second connecting rod 58; the front frame section 201, the middle frame section 202 and the rear frame section 203 are integrally formed, the integrally forming mode includes but is not limited to welding forming, bolting forming and combination of the welding forming, the lifting cylinder 404, the rotating cylinder 405, the telescopic cylinder 53, the power cylinder 54, the following cylinder 55, the swinging cylinder 56 and the driving cylinder 703 can adopt hydraulic cylinders, the steering cylinder 1012 can adopt a hydraulic steering gear, the switching control device 903 can adopt a three-position four-way electromagnetic valve, the assembly component 11 can adopt a stiffening plate, driving units for driving the engineering truck such as an internal combustion engine driving unit, an electric driving unit or a hydraulic motor driving unit can be arranged in the arrangement groove 205, and the hydraulic oil port device 902, the switching control device 903, the lifting cylinder 404, the rotating cylinder 405, the telescopic cylinder 53, the power cylinder 54, the following cylinder 55 and the like in the above mentioned are arranged and processed in an integrated mode, and the hydraulic oil port device, the switching control device 903, the lifting cylinder 404, the rotating cylinder 405, the telescopic cylinder 53, the power cylinder 54, the following cylinder 55 and the hydraulic motor driving unit can be arranged in the arrangement groove 205, The concrete structures and the working principles of the swing cylinder 56, the steering oil cylinder 1012, the hydraulic oil port device 902, the switching control device 903, the drive axle assembly 1011, the steering knuckle 1014, the tire 1015, the transfer case 1020, the assembly 11, the electromagnetic valve control unit, the cross beam 12, the cab 13 and the vehicle door 14 all belong to the prior art in the technical field, and the application does not improve the structure, so that the details are not repeated.

The lifting arm assembly 4 or the telescopic arm assembly 5 can be connected to the frame main body 2 through the connecting structure 3 arranged on the front section 201 of the frame, so that the device can be used for shoveling and transporting, transporting and working at high altitude, the application range of the device is expanded, and the working capacity of equipment is improved; according to the utility model, the frame main body 2 is integrally formed, so that the production and processing are convenient, the manufacturing difficulty and cost are reduced, the connection among the frame front section 201, the frame middle section 202 and the frame rear section 203 is more compact, the gravity center of the frame main body 2 does not change along with the movement of the engineering vehicle main body in the movement process, and the stability of the vehicle in operation is ensured, and the frame main body 2 is provided with the accommodating cavity 204 and the accommodating groove 205, so that the components and equipment in the vehicle main body 1 can be placed and installed, and can be effectively protected; the quick-change device is simple to operate and convenient and fast to operate, the quick-change device 6 can be used for quickly changing the accessory connected with the end part of the power arm assembly, the disassembly and the assembly are convenient, the operation difficulty of the accessory is reduced, the replacement time is saved, and other working devices can be replaced under the condition that the frame structure is not changed, so that the multi-working-condition operation requirement is met; the oil source module 9 is adopted, so that a hydraulic power source can be provided for construction accessories and hydraulic tools, and the construction operation in a wild area is facilitated; meanwhile, the extending direction of a piston rod 606 of the steering oil cylinder 1012 is controlled by a steering control system, and the steering mode of the driving wheel set 1010 can be adjusted, so that the main body of the engineering truck realizes the steering modes of front wheel steering, multi-wheel-set same-phase steering, multi-wheel-set different-phase steering and the like, and the application of the engineering truck is more flexible and efficient; when the lifting arm 401 is adopted for working, the clamping bucket 702 and the push shovel 701 in the bucket 7 are driven to be unfolded and closed through the driving cylinder 703, the requirements of various construction operations can be met, and when the push shovel 701 and the clamping bucket 702 are closed, the related operations such as shoveling, carrying, unloading, pushing and the like can be realized; when the push shovel 701 and the clamping bucket 702 are unfolded, the operation of grabbing, picking or pulling and placing target materials can be performed, the functions are various, the operation is flexible, the production or construction efficiency is improved, and the practicability is high; the specific working process of the utility model is as follows:

when the lifting arm assembly 4 is used, the frame front section 201 and the lifting arm assembly 4 are assembled and connected by using the first rotating shaft 301, the second rotating shaft 302 and the fourth rotating shaft 304 in the connecting structure 3, so that the two are rotatably connected; the bucket 7 is installed at the end part of the lifting arm 401 by using the quick-change device 6, the bucket 7 used at present is disassembled, hydraulic oil is conveyed into the cylinder barrel 604 through the second oil supply pipeline 608, so that hydraulic oil is filled among cavities formed among the piston rod 606, the cylinder sleeve and the limiting sleeve 605, the piston cylinder is driven to move towards the direction close to the middle part of the cylinder barrel 604 along with the continuous increase of the hydraulic oil, the leakage part of the piston rod 606 is reduced until the piston rod is completely separated from the installation hole formed in the assembly component 11, the lifting arm assembly 4 is controlled to drive the quick-change device 6 to descend, so that the upper connecting pin 601 is separated from the assembly groove of the assembly component 11, and the disassembly of the bucket 7 is completed; at this time, the required bucket 7 is replaced, the lifting arm 401 is controlled to ascend, so that the lifting arm drives the upper connecting pin 601 in the quick-change device 6 to be embedded into the assembly groove again, the first oil supply pipeline 607 is utilized to convey hydraulic oil into the cylinder 604, along with the gradual increase of the hydraulic oil, a piston slidably arranged in the cylinder 604 is pushed to move in the direction away from the center of the cylinder 604, the piston rod 606 is gradually extended and gradually penetrates into the mounting hole, and therefore the bucket 7 is replaced; controlling the power arm to move, simultaneously driving the bucket 7 to move towards the direction of the target material to be shoveled until the target material enters the bucket 7, controlling the extension length of a piston rod 606 of the rotating cylinder 405 to enable the piston rod to drive the bucket 7 to turn upwards, and controlling the lifting cylinder 404 to drive the lifting arm 401 to ascend, thereby realizing the shoveling operation of the target material; when the unloading is needed, the rotating cylinder 405 is controlled to drive the bucket 7 to turn in the direction opposite to the shoveling direction, so that the target material is separated from the bucket 7, and the loading and unloading of the target material are completed;

when the telescopic arm assembly 5 is used, the first rotating shaft 301, the second rotating shaft 302 and the fourth rotating shaft 304 in the connecting structure 3 are used for assembling and connecting the frame front section 201 and the telescopic arm assembly 5, the bucket 7 is installed at the end part of the lifting arm 401 by using the quick-change device 6, the currently used bottom fork 8 is disassembled, hydraulic oil is conveyed into the cylinder barrel 604 by using the second oil supply pipeline 608, so that the cavity formed among the piston rod 606, the cylinder sleeve and the limit sleeve 605 is filled with the hydraulic oil, the piston cylinder is driven to move towards the direction close to the middle part of the cylinder barrel 604 along with the continuous increase of the hydraulic oil, the leaked part of the piston rod 606 is reduced until the piston rod is completely separated from the installation hole formed in the assembly component 11, the telescopic arm assembly 5 is controlled to drive the quick-change device 6 to descend, so that the upper connecting pin 601 is separated from the assembly groove of the assembly component 11, the bottom fork 8 is disassembled; at this time, the required bottom fork 8 is replaced, the lifting arm 401 is controlled to ascend, so that the lifting arm drives the upper connecting pin 601 in the quick-change device 6 to be embedded into the assembly groove again, the first oil supply pipeline 607 is utilized to convey hydraulic oil into the cylinder 604, along with the gradual increase of the hydraulic oil, the piston slidably arranged in the cylinder 604 is pushed to move towards the direction far away from the center of the cylinder 604, the piston rod 606 is gradually extended and gradually penetrates into the mounting hole, and therefore the replacement of the bottom fork 8 is completed; in the use process of the telescopic arm assembly 5, the engineering truck main body is controlled to move, the working end of the bottom fork 8 enters a target material, the driving assembly 10 is controlled to drive the bottom fork 8 to completely enter the target material, the inner frame 52 and the outer frame 51 are controlled to ascend through the power cylinder 54 and reach a certain position, the telescopic cylinder 53 is controlled to drive the inner frame 52 to move, the inner frame 52 outwards extends relative to the outer frame 51 until the inner frame extends to a placement area, and therefore the transportation of the target material is completed.

When a hydraulic tool needs to be used, a hydraulic oil port device 902 in the oil source module 9 and the hydraulic tool are connected together, at this time, the oil source module 9 provides hydraulic oil for the hydraulic tool, the switching control device 903 is opened under the action of hydraulic pressure oil, and the flow of the hydraulic oil is adjusted according to actual requirements, so that the hydraulic tool can implement operation;

when the driving assembly 10 drives the engineering truck main body to move, the driving wheel set 1010 is driven to move by the driving unit through the transfer case 1020, so that the transfer case 1020 drives the tires 1015 to rotate through the driving axle component 1011, when the steering mode needs to be switched, the on and off of the electromagnetic valve control unit are utilized to control the oil supply condition of the hydraulic oil source to the steering oil cylinder 1012, when the hydraulic oil source is switched on, the hydraulic oil enters the steering oil cylinder 1012 to push the output end of the piston rod 606 of the steering oil cylinder 1012 to move, and the pull rod 1013 hinged with the steering oil cylinder is driven to move, because the other end of the pull rod 1013 is hinged with the steering knuckle 1014, the moving pull rod 1013 drives the tires 1015 to steer, and the steering condition of each group of tires 1015 is controlled, so that the switching of various steering modes is realized.

The embodiments of the present invention have been described in detail, but the present invention is only the preferred embodiments of the present invention, and is not to be considered as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims (10)

1. The utility model provides a multifunctional engineering vehicle, includes the engineering vehicle main part, its characterized in that: the engineering truck main body comprises a truck body main body (1) and a truck frame main body (2) connected with the bottom of the truck body main body, the end part of the frame main body (2) is provided with a connecting structure (3), the connecting structure (3) is connected with one end of a power arm assembly, the other end of the power arm assembly is provided with a quick-change device (6), the quick-change device (6) is connected with an accessory in a matching way, the accessory is driven by a power arm assembly to work, an oil source module (9) is arranged on the engineering truck main body, the oil source module (9) is used for driving construction accessories and hydraulic tools to work, a driving assembly (10) and a steering control system are arranged on the frame main body (2), the driving assembly (10) is used for driving the engineering truck main body to move, and the steering control system is used for controlling the steering mode of the driving assembly (10);

the power arm assembly is arranged as a lifting arm assembly (4) or a telescopic arm assembly (5);

be provided with assembly subassembly (11) and crossbeam (12) on the accessory, seted up on assembly subassembly (11) and be used for with quick change device (6) matched with pilot hole and assembly groove, crossbeam (12) are used for strengthening and spacing the accessory.

2. The utility vehicle of claim 1, characterized in that: frame main part (2) include frame anterior segment (201) that is connected with connection structure (3), frame middle section (202) that is connected with frame anterior segment (201), and frame back end (203) that is connected with frame middle section (202), frame anterior segment (201) and frame back end (203) form holding chamber (204) on frame middle section (202), be provided with on frame back end (203) and place groove (205), holding chamber (204) and place groove (205) are arranged in holding and the installation of part and equipment in the engineering car main part.

3. A multipurpose work vehicle according to claim 2, characterized in that: connection structure (3) are including setting up first axis of rotation (301), second axis of rotation (302), third axis of rotation (303) and fourth axis of rotation (304) in frame anterior segment (201) respectively, first axis of rotation (301), second axis of rotation (302) and fourth axis of rotation (304) are used for installing lift arm assembly (4) in frame anterior segment (201), second axis of rotation (302), third axis of rotation (303) and fourth axis of rotation (304) are used for installing flexible arm assembly (5) in frame anterior segment (201).

4. A multipurpose work vehicle according to claim 3, characterized in that: the lifting arm assembly (4) comprises a lifting arm (401), a rocker arm (402), a driving rod (403), a lifting cylinder (404) and a rotating cylinder (405), one end of the lifting arm (401) is rotatably connected with a second rotating shaft (302), the other end of the rocker arm is rotationally connected to a quick-change device (6), the lower end of the rocker arm (402) is rotationally connected to a lifting arm (401), the upper end of the rocker arm (402) is rotationally connected with the driving rod (403), the middle part of the rocker arm is rotationally connected with the output end of a piston rod (606) of the rotating cylinder (405), the other end of the driving rod (403) is rotationally connected to a quick-change device (6), the rotating cylinder (405) is rotatably connected with the first rotating shaft (301), the lifting cylinder (404) is rotatably connected with the fourth rotating shaft (304), the output end of a piston rod (606) is respectively connected with one end of a rocker arm (402) and a lifting arm (401) in a rotating way;

the accessory is provided as a bucket (7).

5. Multifunctional industrial vehicle according to claim 4, characterized in that: the bucket (7) comprises a push shovel (701), a clamping bucket (702) and a driving cylinder (703), the push shovel (701) is connected with the quick-change device (6), the clamping bucket (702) is rotationally connected to the push shovel (701) through a pin shaft assembly, the driving cylinder (703) is rotationally connected to the push shovel (701), the output end of a piston rod (606) of the driving cylinder is rotationally connected with the clamping bucket (702), and the driving cylinder (703) is used for driving the push shovel (701) and the clamping bucket (702) to be unfolded and closed.

6. A multipurpose work vehicle according to claim 3, characterized in that: the telescopic arm assembly (5) comprises an outer frame (51), an inner frame (52), a telescopic cylinder (53), a power cylinder (54), a follow-up cylinder (55), a swing cylinder (56), a first connecting rod (57) and a second connecting rod (58), one end of the outer frame (51) is rotatably connected with a second rotating shaft (302), the inner frame (52) is matched and slidably arranged in the outer frame (51), the follow-up cylinder (55) is rotatably connected with a third rotating shaft (303), the output end of a piston rod (606) of the power cylinder is rotatably connected with the other end of the outer frame (51), the power cylinder (54) is rotated with a fourth rotating shaft (304), the output end of the piston rod (606) of the power cylinder is rotatably connected with the other end of the outer frame (51), the telescopic cylinder (53) is rotatably connected with one end of the outer frame (51), and the output end of the piston rod (606) of the power cylinder is rotatably connected with one end of the inner frame (52) close to an accessory, the swing cylinder (56) is arranged inside the inner frame (52), the swing cylinder (56) is rotatably connected with the inner frame (52), the output end of a piston rod (606) of the swing cylinder is rotatably connected with the upper end of a first connecting rod (57), the middle part of the first connecting rod (57) is rotatably connected with the other end of the inner frame (52), the lower end of the first connecting rod is rotatably connected with one end of a second connecting rod (58), and the other end of the second connecting rod (58) is rotatably connected with the quick-change device (6);

the accessory is arranged as a bottom fork (8).

7. The utility vehicle of claim 1, characterized in that: the quick change device (6) comprises an upper connecting pin column (601), a lower connecting pin column (602), a connecting frame (603), a cylinder barrel (604), a limiting sleeve (605), a piston rod (606), a first oil supply pipeline (607) and a second oil supply pipeline (608), wherein the end part of the upper connecting pin column (601) is matched and embedded in an assembly groove on the assembly component (11), the lower connecting pin column (602) is rotatably arranged at the end part of the power arm assembly, a plurality of groups of mounting holes are formed in the connecting frame (603), the connecting frame (603) is sleeved on the upper connecting pin column (601) and the lower connecting pin column (602) in a matching way through the plurality of groups of mounting holes, the cylinder barrel (604) is arranged on the connecting frame (603), the limiting sleeve (605) is matched and embedded in the cylinder barrel (604), and the rod body of the piston rod (606) is matched and slidably arranged in the limiting sleeve (605), and one end of the piston rod (606) is matched with and glidingly arranged in the cylinder barrel (604), the other end of the piston rod is used for being connected with an accessory, the output end of the first oil supply pipeline (607) and the output end of the second oil supply pipeline (608) are communicated with the cylinder barrel (604), the first oil supply pipeline (607) is used for driving the piston rod (606) to extend, and the second oil supply pipeline (608) is used for driving the piston rod (606) to contract.

8. The utility vehicle of claim 1, characterized in that: the oil source module (9) comprises a module body (901), a hydraulic oil port device (902) and a switching control device (903), wherein the hydraulic oil port device (902) and the switching control device (903) are respectively arranged on the module body (901), the hydraulic oil port device (902) is used for conveying hydraulic oil, and the switching control device (903) is used for controlling and switching the conveying amount of the hydraulic oil.

9. The utility vehicle of claim 1, characterized in that: the frame main part (2) is provided with a driving unit and a hydraulic oil source, the driving unit is an internal combustion engine driving unit, an electric driving unit or a hydraulic motor driving unit, the driving unit is used for providing power for a driving assembly (10), and the hydraulic oil source is used for providing hydraulic oil for a power arm assembly, a quick change device (6), an oil source module (9) and a steering control system.

10. A multipurpose work vehicle according to claim 9, characterised in that: the driving assembly (10) comprises a plurality of driving wheel sets (1010) and a transfer case (1020) which are respectively connected to the bottom of the frame main body (2), the driving wheel sets (1010) are arranged into a plurality of groups, the input ends of the plurality of groups of driving wheel sets (1010) are connected with the output end of the transfer case (1020), and the input end of the transfer case (1020) is connected with the output end of a driving unit;

the steering control system is set as an electromagnetic valve control unit which is used for switching the steering modes of the multiple groups of driving wheel sets (1010).

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