阅读说明：本技术 基于控制工程车辆用的液压装置 (Hydraulic device for controlling engineering vehicle ) 是由 张松林 杨航 石新峰 李婧 庄小利 李菲 于 2020-04-24 设计创作，主要内容包括：本发明公开了基于控制工程车辆用的液压装置,涉及工程车辆技术领域,解决了现有的工程车辆液压支撑装置支腿的伸缩距离较短,支撑能力较差,同时在使用中需要依次对每条支腿进行调节,操作麻烦的问题,包括工程车主体；所述工程车主体后部内侧固定连接有一组驱动电机；所述工程车主体后部转动连接有一组中间传动轴；所述工程车主体左右两侧均转动连接有一组驱动丝杠；所述二级摆动杆的外侧固定连接有一组支撑液压缸。该装置折叠率高,展开臂展比较大,具有更好的支撑能力,同时展开后支撑点对称分布,提高支撑的稳定性,使用方便可以实现快速展开和收缩,使用方便,同时可以将摆动支撑杆展开,增加接触面积,提高支撑能力。(The invention discloses a hydraulic device for controlling an engineering vehicle, relates to the technical field of engineering vehicles, and solves the problems that the conventional hydraulic support device for the engineering vehicle has short telescopic distance and poor support capability, and each support leg needs to be adjusted in sequence during use, so that the operation is troublesome; a group of driving motors is fixedly connected to the inner side of the rear part of the engineering truck main body; the rear part of the engineering truck main body is rotatably connected with a group of intermediate transmission shafts; the left side and the right side of the engineering truck main body are both rotatably connected with a group of driving screw rods; and a group of supporting hydraulic cylinders is fixedly connected to the outer side of the secondary swing rod. The device folding rate is high, and it is bigger to expand the arm exhibition, has better support ability, and back support point symmetric distribution expands simultaneously, improves the stability of support, and convenient to use can expand the swing bracing piece simultaneously with the shrink fast in order to realize expanding, increases area of contact, improves support ability.)

1. Based on hydraulic means that control engineering vehicle used characterized in that: comprises a main body (1) of the engineering truck; the inner side of the rear part of the engineering truck main body (1) is fixedly connected with a group of driving motors (2); the rear part of the engineering truck main body (1) is rotatably connected with a group of intermediate transmission shafts (3); the left side and the right side of the engineering truck main body (1) are respectively and rotatably connected with a group of driving screw rods (4); a group of driving sliding blocks (5) are connected to the left side, the right side and the front side of the engineering truck main body (1) in a sliding manner; the front and the back of the left side and the right side of the engineering truck main body (1) are hinged with a group of primary swing rods (6) and a group of swing connecting rods (9); the primary oscillating rod (6) and the oscillating connecting rod (9) on the same side are hinged to a group of middle connecting seats (10), and the outer side of the top of each middle connecting seat (10) is hinged to a group of secondary oscillating rods (7); and a group of supporting hydraulic cylinders (8) are fixedly connected to the outer side of the secondary swing rod (7).

2. The hydraulic apparatus for a control-based working vehicle according to claim 1, characterized in that: the driving motor (2) further comprises a driving chain wheel (201), a group of driving chain wheels (201) are coaxially and fixedly connected to the rotating shaft of the driving motor (2), the intermediate transmission shaft (3) further comprises a driven chain wheel (301), a group of driven chain wheels (301) are coaxially and fixedly connected to the middle of the intermediate transmission shaft (3), and the driving chain wheels (201) and the driven chain wheels (301) are meshed to form a chain transmission mechanism together.

3. The hydraulic apparatus for a control-based working vehicle according to claim 1, characterized in that: the middle transmission shaft (3) is characterized by further comprising a driving bevel gear (302), a group of driving bevel gears (302) are coaxially and fixedly connected to the left side and the right side of the middle transmission shaft (3), the driving screw (4) is further comprising a driven bevel gear (401), a group of driven bevel gears (401) are coaxially and fixedly connected to the rear end face of the driving screw (4), and the driving bevel gear (302) and the driven bevel gears (401) are meshed to form a bevel gear transmission mechanism together.

4. The hydraulic apparatus for a control-based working vehicle according to claim 1, characterized in that: the front and the back of the driving screw rod (4) are respectively in threaded transmission connection with a group of driving slide blocks (5) to form a screw rod nut transmission pair.

5. The hydraulic apparatus for a control-based working vehicle according to claim 1, characterized in that: both ends all are provided with the screw thread around drive lead screw (4), and the screw thread pitch at drive lead screw (4) both ends is the same, revolve to opposite.

6. The hydraulic apparatus for a control-based working vehicle according to claim 1, characterized in that: the driving sliding block (5) further comprises a driving connecting rod (501), the outer side of the driving sliding block (5) is hinged with a group of driving connecting rods (501), the other end of each driving connecting rod (501) is hinged with the middle of the corresponding primary oscillating rod (6), and a crank sliding block mechanism is formed among the driving sliding block (5), the driving connecting rods (501), the primary oscillating rods (6) and the engineering truck main body (1) together.

7. The hydraulic apparatus for a control-based working vehicle according to claim 1, characterized in that: the engineering truck is characterized in that the first-level swinging rod (6) and the swinging connecting rod (9) are installed in parallel, the middle connecting seat (10) and the engineering truck main body (1) are installed in parallel, and the first-level swinging rod (6), the swinging connecting rod (9), the middle connecting seat (10) and the engineering truck main body (1) are in a double-rocker mechanism in the common process.

8. The hydraulic apparatus for a control-based working vehicle according to claim 1, characterized in that: one-level swinging arms (6) are still including synchronous swing driving gear (601), coaxial fixedly connected with a set of synchronous swing driving gear (601) on the outside hinged joint point of one-level swinging arms (6), second grade swinging arms (7) are still including synchronous swing driven gear (701), coaxial fixedly connected with a set of synchronous swing driven gear (701) on the inboard hinged joint point of second grade swinging arms (7), synchronous swing driven gear (701) constitute gear drive jointly with synchronous swing driving gear (601) meshing.

9. The hydraulic apparatus for a control-based working vehicle according to claim 1, characterized in that: the supporting hydraulic cylinder (8) also comprises a telescopic supporting rod (801), a swinging supporting rod (802), an inclined supporting rod (803), a return spring (804) and a piston rod (805), the bottom of the supporting hydraulic cylinder (8) is connected with a group of piston rods (805) in a sliding way, a group of telescopic supporting rods (801) is connected below the piston rods (805) in a sliding way, the top of the telescopic supporting rod (801) is elastically connected with the piston rod (805) through a group of reset springs (804), the bottom of the telescopic supporting rod (801) is circumferentially arrayed and hinged with a plurality of groups of swing supporting rods (802), the upper portion of the inner side of each swing supporting rod (802) is hinged with a group of inclined supporting rods (803), the other ends of the inclined supporting rods (803) are hinged with the bottom of the piston rod (805), and a crank sliding block mechanism is formed among the telescopic supporting rod (801), the swing supporting rods (802), the inclined supporting rods (803) and the piston rod (805).

Technical Field

The invention relates to the technical field of engineering vehicles, in particular to a hydraulic device for controlling an engineering vehicle.

Background

A large number of engineering vehicles are needed to finish various construction works in engineering construction, and in the use of some engineering vehicles, a vehicle body is generally required to be supported through hydraulic support legs in order to ensure the stability of the engineering vehicles.

For example, application No.: CN201210024571.X the invention discloses a supporting device and an engineering machinery vehicle, wherein the supporting device comprises: the device comprises a telescopic supporting leg, a vertical oil cylinder, a horizontal oil cylinder, a rotary supporting leg oil cylinder and a swing driving unit. The vertical oil cylinder comprises a vertical piston rod and a vertical cylinder barrel which are matched, the vertical oil cylinder is perpendicularly connected with the first end of the telescopic supporting leg, the horizontal oil cylinder comprises a horizontal piston rod and a horizontal cylinder barrel which are matched, the first end of the horizontal oil cylinder is connected with the telescopic supporting leg in parallel, the first end of the rotary supporting leg is rotatably connected onto the telescopic supporting leg, the rotary supporting leg oil cylinder comprises a rotary supporting leg oil cylinder piston rod and a rotary supporting leg oil cylinder barrel which are matched, the rotary supporting leg oil cylinder is perpendicularly connected at the second end of the rotary supporting leg, and the swing driving unit is perpendicularly connected onto the rotary supporting leg. Through the mode, the invention utilizes the combined action of the telescopic supporting legs and the rotating supporting legs to increase the supporting leg span, and improves the anti-tipping capacity and the operation stability of the engineering machinery vehicle.

Based on the above, the existing hydraulic support device for the engineering vehicle generally adopts a telescopic structure to support the vehicle, the telescopic distance of the support legs is short in use, the support capability is poor, and meanwhile, each support leg needs to be adjusted in sequence in use, so that the operation is troublesome; therefore, the existing requirements are not met, and a hydraulic device for controlling a construction vehicle is proposed.

Disclosure of Invention

The invention aims to provide a hydraulic device for controlling an engineering vehicle, which aims to solve the problems that the existing hydraulic support device for the engineering vehicle, which is proposed in the background art, generally adopts a telescopic structure to support the vehicle, the telescopic distance of supporting legs is short in use, the supporting capability is poor, and each supporting leg needs to be adjusted in sequence in use, so that the operation is troublesome.

In order to achieve the purpose, the invention provides the following technical scheme: the hydraulic device for controlling the engineering vehicle comprises an engineering vehicle main body; a group of driving motors is fixedly connected to the inner side of the rear part of the engineering truck main body; the rear part of the engineering truck main body is rotatably connected with a group of intermediate transmission shafts; the left side and the right side of the engineering truck main body are both rotatably connected with a group of driving screw rods; the front and the back of the left side and the right side of the engineering truck main body are both connected with a group of driving sliding blocks in a sliding manner; the front and the back of the left side and the right side of the engineering truck main body are hinged with a group of primary swing rods and a group of swing connecting rods; the primary oscillating rod and the oscillating connecting rod on the same side are hinged to a group of intermediate connecting seats together, and the outer side of the top of the intermediate connecting seat is hinged to a group of secondary oscillating rods; and a group of supporting hydraulic cylinders is fixedly connected to the outer side of the secondary swing rod.

Preferably, the driving motor further comprises a driving sprocket, a group of driving sprockets are coaxially and fixedly connected to a rotating shaft of the driving motor, the intermediate transmission shaft further comprises a driven sprocket, a group of driven sprockets are coaxially and fixedly connected to the middle of the intermediate transmission shaft, and the driving sprocket and the driven sprockets are meshed to form a chain transmission mechanism together.

Preferably, the intermediate transmission shaft further comprises a driving bevel gear, a group of driving bevel gears are coaxially and fixedly connected to the left side and the right side of the intermediate transmission shaft, the driving screw further comprises a driven bevel gear, a group of driven bevel gears are coaxially and fixedly connected to the rear end face of the driving screw, and the driving bevel gear and the driven bevel gears are meshed to form a bevel gear transmission mechanism.

Preferably, the front and the back of the driving screw rod are respectively in threaded transmission connection with a group of driving sliders to form a screw rod nut transmission pair.

Preferably, both ends all are provided with the screw thread around the drive lead screw, and the screw thread pitch at drive lead screw both ends is the same, the rotation direction is opposite.

Preferably, the driving slider further comprises a driving connecting rod, the outer side of the driving slider is hinged to a group of driving connecting rods, the other end of the driving connecting rod is hinged to the middle of the first-level oscillating rod, and a crank slider mechanism is formed among the driving slider, the driving connecting rod, the first-level oscillating rod and the engineering truck main body.

Preferably, the first-stage oscillating rod is installed in parallel with the oscillating connecting rod, the middle connecting seat is installed in parallel with the engineering truck main body, and the first-stage oscillating rod, the oscillating connecting rod, the middle connecting seat and the engineering truck main body form a double-rocker mechanism in the common process.

Preferably, the one-level swinging arm is further including synchronous swing driving gear, coaxial fixedly connected with a set of synchronous swing driving gear on the outside hinged joint point of one-level swinging arm, and the second grade swinging arm is still including synchronous swing driven gear, coaxial fixedly connected with a set of synchronous swing driven gear on the inboard hinged joint point of second grade swinging arm, and synchronous swing driven gear constitutes gear drive jointly with the meshing of synchronous swing driving gear.

Preferably, the supporting hydraulic cylinder further comprises a telescopic supporting rod, a swinging supporting rod, an inclined strut, a reset spring and a piston rod, the bottom of the supporting hydraulic cylinder is connected with a set of piston rod in a sliding mode, the lower portion of the piston rod is connected with a set of telescopic supporting rod in a sliding mode, the top of the telescopic supporting rod is elastically connected with the piston rod through a set of reset spring, the bottom of the telescopic supporting rod is circumferentially arrayed and hinged to a plurality of sets of swinging supporting rods, the upper portion of the inner side of each swinging supporting rod is hinged to a set of inclined strut, the other end of each inclined strut is hinged to the bottom of the piston rod, and a crank-slider mechanism is.

Compared with the prior art, the invention has the beneficial effects that:

the device realizes synchronous extension and contraction of four groups of supporting legs by adopting transmission modes such as a chain transmission mechanism, a bevel gear transmission mechanism, a lead screw nut transmission pair, a crank slider mechanism, a double slider mechanism, a gear transmission mechanism and the like, has high folding rate and larger expansion of an expansion arm, has better supporting capacity, and simultaneously supports are symmetrically distributed after being expanded, so that the supporting stability is improved, and quick expansion and contraction can be realized by using the device; meanwhile, the swinging support rod can be unfolded when the support hydraulic cylinder is unfolded and supported by adopting the crank slider mechanism, so that the contact area is increased, and the support capacity is improved.

The device can realize stretching out in step and the shrink of four groups of landing legs, and the rate of folding is high, and it is big to expand the arm exhibition, has better support capacity, and the back bracing point symmetric distribution that expands simultaneously improves the stability of support, and convenient to use alright expand and shrink fast with realizing, can expand the swing bracing piece simultaneously, increases area of contact, improves support capacity.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic side view of the drive shaft of the present invention;

FIG. 3 is a schematic side view of the drive shaft of the drive screw of the present invention;

FIG. 4 is a schematic side view of the drive shaft of the secondary oscillating lever of the present invention;

FIG. 5 is a schematic side view of the dual rocker mechanism of the present invention;

FIG. 6 is a schematic side view of the mounting shaft of the swing support rod of the present invention;

FIG. 7 is a schematic side view of the support cylinder of the present invention;

FIG. 8 is a schematic side view of the telescopic supporting rod of the present invention;

in the figure: 1. a machineshop car body; 2. a drive motor; 201. a drive sprocket; 3. an intermediate transmission shaft; 301. a driven sprocket; 302. a drive bevel gear; 4. driving a lead screw; 401. a driven bevel gear; 5. driving the slide block; 501. a drive link; 6. a primary oscillating lever; 601. synchronously swinging the driving gear; 7. a secondary swing lever; 701. synchronously swinging the driven gear; 8. a support hydraulic cylinder; 801. a telescopic support rod; 802. swinging the support rod; 803. a diagonal brace; 804. a return spring; 805. a piston rod; 9. a swing link; 10. the middle connecting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 8, an embodiment of the present invention includes: a hydraulic device for controlling a working vehicle includes a working vehicle body 1; a group of driving motors 2 are fixedly connected to the inner side of the rear part of the engineering truck main body 1; the rear part of the engineering truck main body 1 is rotatably connected with a group of intermediate transmission shafts 3; the left side and the right side of the engineering truck main body 1 are both rotatably connected with a group of driving screw rods 4; a group of driving slide blocks 5 are connected to the left side, the right side and the front side of the engineering truck main body 1 in a sliding manner; the front and the back of the left side and the right side of the engineering truck main body 1 are hinged with a group of primary swing rods 6 and a group of swing connecting rods 9; the primary oscillating rod 6 and the oscillating connecting rod 9 on the same side are hinged to a group of middle connecting seats 10 together, and the outer side of the top of the middle connecting seats 10 is hinged to a group of secondary oscillating rods 7; and a group of supporting hydraulic cylinders 8 are fixedly connected to the outer side of the secondary oscillating rod 7.

Further, the driving motor 2 further comprises a driving sprocket 201, a group of driving sprockets 201 are coaxially and fixedly connected to a rotating shaft of the driving motor 2, the intermediate transmission shaft 3 further comprises a driven sprocket 301, a group of driven sprockets 301 are coaxially and fixedly connected to the middle portion of the intermediate transmission shaft 3, the driving sprocket 201 and the driven sprockets 301 are meshed to form a chain transmission mechanism together, and the driving motor 2 drives the intermediate transmission shaft 3 to rotate through the chain transmission mechanism in use.

Further, the intermediate transmission shaft 3 further comprises a driving bevel gear 302, a group of driving bevel gears 302 are coaxially and fixedly connected to the left side and the right side of the intermediate transmission shaft 3, the driving screw 4 further comprises a driven bevel gear 401, a group of driven bevel gears 401 are coaxially and fixedly connected to the rear end face of the driving screw 4, the driving bevel gears 302 and the driven bevel gears 401 are meshed to form a bevel gear transmission mechanism together, and when the intermediate transmission shaft 3 rotates in use, the intermediate transmission shaft 3 drives the driving screw 4 to rotate through the bevel gear transmission mechanism.

Further, the front and the back of the driving lead screw 4 are respectively in threaded transmission connection with a group of driving sliding blocks 5 to form a lead screw nut transmission pair, and when the driving lead screw 4 rotates in use, the driving lead screw 4 drives the driving sliding blocks 5 to slide back and forth through the lead screw nut transmission pair.

Furthermore, the front end and the rear end of the driving screw rod 4 are provided with threads, the thread pitches of the threads at the two ends of the driving screw rod 4 are the same, and the rotating directions are opposite, so that in use, the driving screw rod 4 rotates to drive the driving sliding blocks 5 at the left end and the right end to synchronously and reversely slide.

Further, the driving slider 5 further comprises a driving connecting rod 501, the outer side of the driving slider 5 is hinged with a group of driving connecting rods 501, the other end of each driving connecting rod 501 is hinged with the middle of the corresponding first-level oscillating rod 6, the driving slider 5, the driving connecting rods 501, the first-level oscillating rods 6 and the engineering truck main body 1 form a slider-crank mechanism together, and when the driving slider 5 slides back and forth in use, the driving slider 5 drives the first-level oscillating rods 6 to oscillate through the slider-crank mechanism.

Further, the first-stage swing rod 6 is installed in parallel with the swing connecting rod 9, the middle connecting seat 10 is installed in parallel with the engineering truck main body 1, and the first-stage swing rod 6, the swing connecting rod 9, the middle connecting seat 10 and the engineering truck main body 1 jointly form a double-rocker mechanism, so that when the first-stage swing rod 6 swings, the double-rocker mechanism is driven to deform, and the installation angle between the first-stage swing rod 6 and the middle connecting seat 10 is changed.

Further, one-level swinging arms 6 is still including synchronous swing driving gear 601, coaxial fixedly connected with a set of synchronous swing driving gear 601 on the outside hinged joint point of one-level swinging arms 6, second grade swinging arms 7 is still including synchronous swing driven gear 701, coaxial fixedly connected with a set of synchronous swing driven gear 701 on the inboard hinged joint point of second grade swinging arms 7, synchronous swing driven gear 701 constitutes gear drive with synchronous swing driving gear 601 meshing jointly, in use when the installation angle change between one-level swinging arms 6 and intermediate junction seat 10, one-level swinging arms 6 drives the same angle of 7 reverse swings of second grade swinging arms through gear drive, realize the flexible action of landing leg.

Furthermore, the supporting hydraulic cylinder 8 further comprises a telescopic supporting rod 801, a swinging supporting rod 802, an inclined supporting rod 803, a return spring 804 and a piston rod 805, the bottom of the supporting hydraulic cylinder 8 is slidably connected with a group of piston rods 805, the lower part of the piston rod 805 is slidably connected with a group of telescopic supporting rod 801, the top of the telescopic supporting rod 801 is elastically connected with the piston rod 805 through a group of return spring 804, the bottom of the telescopic supporting rod 801 is circumferentially arranged and hinged with a plurality of groups of swinging supporting rods 802, the upper part of the inner side of the swinging supporting rod 802 is hinged with a group of inclined supporting rods 803, the other end of the inclined supporting rod 803 is hinged with the bottom of the piston rod 805, the telescopic supporting rod 801, the swinging supporting rod 802, the inclined supporting rods 803 and the piston rod 805 together form a crank block mechanism, when the supporting hydraulic cylinder 8, the piston rod 805 continues to slide downwards and compresses the return spring 804, and the piston rod 805 drives the swinging support rod 802 to swing and expand through the slider-crank mechanism, so that the contact area is increased, and the support capacity is improved.

The working principle is as follows: when the support leg is used, when the support leg is required, the driving motor 2 drives the middle transmission shaft 3 to rotate through the chain transmission mechanism, the middle transmission shaft 3 drives the driving screw rod 4 to rotate through the bevel gear transmission mechanism, the driving screw rod 4 drives the two groups of driving slide blocks 5 to synchronously slide from front to back and from outer sides through the screw rod nut transmission pair, the driving slide blocks 5 drive the first-stage oscillating rod 6 to oscillate through the slider-crank mechanism, when the first-stage oscillating rod 6 oscillates, the double-rocker mechanism is driven to deform, the installation angle between the first-stage oscillating rod 6 and the middle connection seat 10 is changed, and when the installation angle between the first-stage oscillating rod 6 and the middle connection seat 10 is changed, the first-stage oscillating rod 6 drives the second-stage oscillating rod 7 to; the supporting hydraulic cylinder 8 drives the piston rod 805 to slide downwards, when the bottom of the telescopic supporting rod 801 is in contact with the bottom surface, the piston rod 805 continues to slide downwards and compresses the return spring 804, and the piston rod 805 drives the swinging supporting rod 802 to swing and expand through the slider-crank mechanism, so that the contact area is increased, and the supporting capacity is improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.