CN113459933A

CN113459933A - Long pipe fitting four-wheel drive flat carrier vehicle with adjustable clamp

Info

Publication number: CN113459933A
Application number: CN202110686334.9A
Authority: CN
Inventors: 肖正明; 谭加林; 郑胜予; 刘佳伟
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-10-01

Abstract

The invention discloses a clamp-adjustable long pipe four-wheel-drive flat plate transport vehicle which comprises a flat plate, a clamp, an adjusting mechanism, a four-wheel-drive transmission system and a wire control device, wherein the clamp is arranged on the flat plate; the four-wheel drive transmission system is arranged at the bottom of the flat plate, the clamp is arranged at the top of the flat plate through the adjusting mechanism, the adjusting mechanism is used for driving the left clamp and the right clamp in the clamp to move in opposite directions, and the four-wheel drive transmission system is driven by the wire control device to drive the flat plate transport vehicle to move. The adjusting mechanism and the clamps connected with the adjusting mechanism are designed, so that the included angle of the clamps can be adjusted, the worm and gear in the adjusting mechanism can be driven to rotate by rotating the control handle in the adjusting mechanism, the lead screw is rotated, the longitudinal rotation is converted into the transverse rotation, the clamps connected with the lead screw can move, and the front and rear groups of clamps are simultaneously close to or far away from each other under the action of the adjusting mechanism, so that the effect of effectively clamping the long pipe fitting is achieved.

Description

Long pipe fitting four-wheel drive flat carrier vehicle with adjustable clamp

Technical Field

The invention relates to a long pipe four-wheel drive flat carrier vehicle with an adjustable clamp, and belongs to the field of flat carrier vehicles.

Background

In the pipeline engineering project, the large-pipe-diameter long pipe fitting is an indispensable material, the large-pipe-diameter long pipe fitting is generally directly carried by a truck in the transportation process of the large-pipe-diameter long pipe fitting, the long pipe fitting is difficult to avoid collision with the inner wall of the truck under the rough road condition of a construction site, the friction damage of the outer side of the long pipe fitting is caused, and the long pipe fitting is easy to roll when being transported by a transport truck without a clamp due to the rough road; also, due to the large size of the trucks, some unloading sites are not accessible. And to the long pipe fitting of different pipe diameters, anchor clamps will need frequently to be changed to general transport vechicle, cause a lot of troubles. To complicated road conditions, other carrier because self weight is absorbed in pothole topography very easily, cause the inconvenience in transit, also lead to the pipe fitting of transportation not hard up, arouse more wearing and tearing.

Disclosure of Invention

The invention provides a clamp-adjustable long pipe four-wheel drive flat carrier vehicle, which can adapt to the transportation of long pipes with different pipe diameters by arranging an adjustable clamp.

The technical scheme of the invention is as follows: a clamp-adjustable long pipe four-wheel-drive flat plate carrier vehicle comprises a flat plate 1, a clamp 2, an adjusting mechanism 3, a four-wheel-drive transmission system 4 and a wire control device 5; four-wheel drive transmission system 4 is installed to dull and stereotyped 1 bottom, and dull and stereotyped 1 top is through 3 sectional fixture 2 of adjustment mechanism, and adjustment mechanism 3 is arranged in driving fixture 2 left anchor clamps 31 and right anchor clamps 37 and moves along opposite direction, and four-wheel drive transmission system 4 drives and then drives the motion of dull and stereotyped transport vechicle through drive-by-wire device 5.

The flat plate 1 comprises a plate body, a clamp front groove 23, a clamp rear groove 24 and a worm groove 26, wherein the clamp front groove 23, the clamp rear groove 24 and the worm groove are formed in the plate body; the front clamp groove 23 and the rear clamp groove 24 are respectively perpendicular to the worm groove 26, the lead screw baffle 22 for installing the lead screw 18 in the adjusting mechanism 3 is arranged on two sides of the front clamp groove 23 and the rear clamp groove 24, the worm baffle 28 for installing the front end worm 34 and the rear end worm 36 in the adjusting mechanism 3 is arranged on two sides of the worm groove 26, the protective cover plate 27 is arranged on the upper side of the worm groove 26, and the side plates 11 for protecting the four-wheel drive transmission system 4 are arranged on two sides of the lower end of the plate body.

Anchor clamps 2 are two sets of, and every group structure is the same, all includes: the bottom parts of the left clamp 31 and the right clamp 37 are provided with nut seats with screw nuts, the axial direction of a threaded hole formed in each nut seat with the screw nut is parallel to the movement direction of the left clamp 31/the right clamp 37, the nut seats with the screw nuts are in nested fit with the front clamp groove 23 and the rear clamp groove 24 arranged on the flat plate 1, the threaded hole formed in each nut seat with the screw nuts is used for a screw rod 18 in an adjusting mechanism 3 to penetrate, and the left clamp 31 and the right clamp 37 respectively move oppositely along the axial direction of the screw rod 18.

The clamping surface of the clamp 2 is provided with a rubber anti-skid pad 19.

The fastening belt 40 is connected and fixed with the clamping surface of the clamp 2 through fastening bolts 42, wherein a plurality of groups of bolt holes are arranged on the clamping surface of the clamp 2 for adjusting the positions of the fastening bolts 42.

The adjusting mechanism 3 is composed of a screw mechanism and a worm gear mechanism, the screw mechanism is driven to rotate by the rotation of the worm gear mechanism, and the screw mechanism drives the left clamp 31 and the right clamp 37 in the clamp 2 to move along opposite directions.

The screw mechanism comprises a screw rod 18, the screw rod 18 sequentially penetrates through nut seats with screw rod nuts at the bottoms of a left clamp 31 and a right clamp 37 in the clamp 2, two ends of the screw rod 18 are fixedly installed through rolling ball bearings 39 fixedly connected with an upper sleeve 38 of a screw rod baffle 22, the screwing direction of the screw rod 18 at the position matched with the left clamp 31 is opposite to that of the screw rod 18 at the position matched with the right clamp 37, and the worm gear mechanism comprises a worm gear 20, a coupler 33, a front-end worm 34, a handle 35 and a rear-end worm 36; the front end worm 34 and the rear end worm 36 are connected through a coupler 33, the front end worm 34 and the rear end worm 36 are provided with spiral teeth 16, the spiral teeth 16 are meshed with a worm wheel 20 which is positioned in the middle of the screw rod 18 and connected through a key, and a handle 35 is arranged at the free end of the front end worm 34/the rear end worm 36.

The four-wheel drive transmission system 4 comprises a front differential mechanism 6, a front drive shaft 7, a transfer case 8, a rear drive shaft 9, a storage battery 10, a motor controller 12, a rear differential mechanism 13, a steering controller 14, a motor 15 and a vehicle-mounted DC converter 17; the front differential mechanism 6 is connected with a front wheel shaft provided with front wheels, the front differential mechanism 6 is connected with the transfer case 8 through a front driving shaft 7, the transfer case 8 is connected with one end of a rear driving shaft 9, the other end of the rear driving shaft 9 is connected with a rear differential mechanism 13, the rear differential mechanism 13 is connected with a rear wheel shaft provided with rear wheels, the rear differential mechanism 13 is connected with a steering controller 14, an on-board DC converter 17 is used for carrying out voltage stabilization treatment on voltage transmitted to the whole circuit in the storage battery 10 and assisting the storage battery 10 to charge, power is supplied through the storage battery 10, and the motor controller 12 and the steering controller 14 are driven through the wire control device 5 to further control the motor 15 to act.

The invention has the beneficial effects that: this application is through designing adjustment mechanism and the anchor clamps that are connected with it, can realize the regulation of anchor clamps contained angle, control handle in adjustment mechanism, can drive the worm gear among the adjustment mechanism and rotate to make the lead screw rotate, turn into horizontal rotation with fore-and-aft rotation, alright so move with lead screw connection's anchor clamps, two sets of anchor clamps draw close simultaneously or keep away from under adjustment mechanism's effect around, reach the effect of effectively pressing from both sides tight long pipe fitting jointly. The method has the following specific beneficial effects:

the flat transport vehicle comprises a flat transport vehicle body, two groups of clamps are arranged on the flat transport vehicle body, the long pipe fittings are loaded and transported by the clamps, the rubber anti-skid pads are arranged on the clamps, fastening belts are arranged on the clamps, mutual friction between the long pipe fittings and the clamps is avoided, and the transportation stability is improved.

2 control anchor clamps through adjustment mechanism, make the width between the left and right sides anchor clamps can be adjusted, when loading the long pipe fitting of different pipe diameters, can in time make the adjustment, make its steady transportation, the suitability is stronger.

3 the adjusting mechanism can make the front end clamp and the rear end clamp close together or keep away from each other simultaneously, so that the purpose that one control handle controls two groups of clamps simultaneously is realized.

4 under different road surface conditions, adopt four-wheel drive transmission system, can deal with more complicated road conditions, provide sufficient power to can select different drive modes according to the behavior of reality, make it more high-efficient, improve the adaptability and the security of this flat transport vehicle, the convenient high efficiency more of during operation.

Drawings

FIG. 1 is a schematic view of the overall structure of the flat-bed transportation vehicle of the present invention;

FIG. 2 is a left side cross-sectional view of the flat bed transport vehicle of the present invention;

FIG. 3 is a schematic view of the adjustment mechanism of the present invention engaged with a rubber mat;

FIG. 4 is a schematic view of an adjustment mechanism of the present invention;

FIG. 5 is a schematic diagram of a plate structure according to the present invention;

FIG. 6 is a schematic structural diagram of a worm and gear mechanism of the present invention;

FIG. 7 is an enlarged view of the engagement of the helical teeth with the helical teeth of the present invention;

FIG. 8 is a schematic view of a lead screw baffle according to the present invention;

FIG. 9 is a schematic view of a fastening strap attachment of the present invention;

FIG. 10 is a schematic view of the four-wheel drive transmission system of the present invention;

the reference numbers in the figures are: a flat plate-1, a clamp-2, an adjusting mechanism-3, a four-wheel drive transmission system-4, a wire control device-5, a front differential-6, a front drive shaft-7, a transfer case-8, a rear drive shaft-9, a storage battery-10, a side plate-11, a motor controller-12, a rear differential-13, a steering controller-14, a motor-15, a helical tooth-16, a vehicle-mounted DC converter-17, a screw rod-18, a rubber non-slip mat-19, a worm wheel-20, a screw rod baffle-22, a clamp front groove-23, a rear groove-24, a worm groove-26, a protective baffle-27, a worm baffle-28, a left clamp-31, a coupler-33, a front end worm-34, a handle-35, a left clamp-31, a coupler-33, a handle-35, a right clamp, a left clamp, a right clamp, a left clamp, a right clamp, a left clamp, a right clamp, a left clamp, a right clamp, a left clamp, a right clamp, a left clamp, a right clamp, a left clamp, a right clamp, a left clamp, a right clamp, a left clamp, a right clamp, A rear worm-36, a right clamp-37, a sleeve-38, a rolling ball bearing-39, a fastening belt-40, a long pipe-41 and a fastening bolt-42.

Detailed Description

Example 1: as shown in fig. 1-10, a clamp-adjustable four-wheel-drive flat plate carrier vehicle for long pipe fittings comprises a flat plate 1, a clamp 2, an adjusting mechanism 3, a four-wheel-drive transmission system 4 and a wire control device 5; four-wheel drive transmission system 4 is installed to dull and stereotyped 1 bottom, and dull and stereotyped 1 top is through 3 sectional fixture 2 of adjustment mechanism, and adjustment mechanism 3 is arranged in driving fixture 2 left anchor clamps 31 and right anchor clamps 37 and moves along opposite direction, and four-wheel drive transmission system 4 drives and then drives the motion of dull and stereotyped transport vechicle through drive-by-wire device 5.

Further, the flat plate 1 can be provided with a plate body, and a clamp front groove 23, a clamp rear groove 24 and a worm groove 26 which are formed on the plate body; the front clamp groove 23 and the rear clamp groove 24 are respectively perpendicular to the worm groove 26, the lead screw baffle 22 for installing the lead screw 18 in the adjusting mechanism 3 is arranged on two sides of the front clamp groove 23 and the rear clamp groove 24, the worm baffle 28 for installing the front end worm 34 and the rear end worm 36 in the adjusting mechanism 3 is arranged on two sides of the worm groove 26, the protective cover plate 27 is arranged on the upper side of the worm groove 26, and the side plates 11 for protecting the four-wheel drive transmission system 4 are arranged on two sides of the lower end of the plate body. The screw 18 can rotate in the clamp groove through the screw baffle 22, the spiral tooth 16 is fixed through the worm baffle 28, the spiral tooth 16 rotates in the worm groove 26, and the protective cover plate 27 is used for protecting the spiral tooth 16 from the external environment.

Further, can set up anchor clamps 2 are two sets of, and every group structure is the same, all includes: the left clamp 31 and the right clamp 37 (the clamping surfaces of the left clamp 31 and the right clamp 37 are inclined towards the middle between the two, when the left clamp and the right clamp are tightly attached, the two inclined surfaces are in a V shape), nut seats with screw nuts are arranged at the bottoms of the left clamp 31 and the right clamp 37, the axial direction of threaded holes formed in the nut seats with the screw nuts is parallel to the movement direction of the left clamp 31/the right clamp 37, the nut seats with the screw nuts are in nested fit with the front clamp groove 23 and the rear clamp groove 24 which are arranged on the flat plate 1, the threaded holes formed in the nut seats with the screw nuts are used for the screw rods 18 in the adjusting mechanism 3 to pass through, and the left clamp 31 and the right clamp 37 respectively perform opposite movement along the axial direction of the screw rods 18.

Further, a rubber mat 19 may be provided on the clamping surface of the jig 2. The rubber anti-skid pad 19 avoids the direct contact between the long pipe fitting 41 and the V-shaped clamp 2, and prevents the long pipe fitting 41 from being scratched by the clamp in the transportation process to cause the outside friction and abrasion of the long pipe fitting in the transportation process.

Further, the fastening belt 40 may be connected and fixed to the clamping surface of the clamp 2 through the fastening bolt 42, wherein a plurality of sets of bolt holes are formed in the clamping surface of the clamp 2 for adjusting the position of the fastening bolt 42 (the fastening bolt 42 is connected to the inclined surface of the clamp 2, so that the gap between the fastening belt 40 and the long pipe 41 is small, and thus the friction between the fastening belt 40 and the long pipe 41 may be increased, and the long pipe 41 may be on an uphill road section without slipping due to the friction between the fastening belts 40). The two groups of clamps 2 are positioned at the front and rear ends of the flat plate transporter; the detachable fastening belt 40 arranged on the clamp 2 can tightly contact the long pipe fitting with the rubber anti-skid pad 19, the friction force between the rubber anti-skid pad 19 and the long pipe fitting 41 is larger because the self weight of the long pipe fitting 41 is larger, the contact area between the rubber anti-skid pad 19 and the long pipe fitting 41 is large enough, the detachable fastening belt 40 with larger width is arranged on the clamp 2 through the fastening bolt 42, the wrap angle formed between the fastening belt 40 and the long pipe fitting 41 is always larger than 120 degrees through adjusting the position of the fastening bolt 42 and/or the distance between the left clamp 31 and the right clamp 37, and the width of the fastening belt 40 is 1/2 of the width of the clamp 2, so that the wrapping performance of the fastening belt 40 on the long pipe fitting 41 is better, and the static friction force between the fastening belt 40 and the long pipe fitting 41 is large enough, the slipping phenomenon is reduced, and based on the design, even under the situations of complex road conditions, uphill and downhill and the like, the long pipe fitting 41 can be ensured not to easily slip on the clamp as much as possible, so that the long pipe fitting 41 is prevented from rolling off. Simultaneously, the two groups of clamps avoid the defects of inconvenient construction and high cost caused by the excessive number of groups, and can be effectively used for the transportation of long pipe fittings with different pipe diameters.

Further, the adjusting mechanism 3 may be composed of a screw mechanism and a worm gear mechanism, the screw mechanism is driven to rotate by the rotation of the worm gear mechanism, and the screw mechanism drives the left clamp 31 and the right clamp 37 in the clamp 2 to move in opposite directions.

Further, the screw mechanism may be configured to include two screws 18, the screw 18 sequentially passes through nut seats with screw nuts at the bottoms of the left clamp 31 and the right clamp 37 in the clamp 2, and two ends of the screw 18 are fixedly mounted through rolling ball bearings 39 connected and fixed to sleeves 38 on the screw baffle 22 (the sleeves 38 are fixedly disposed on the screw baffle 22 to fixedly mount the rolling ball bearings 39 and abut against outer rings of the rolling ball bearings 39, and the screw 18 abuts against inner rings of the rolling ball bearings 39, so that the screw 18 can be fixedly mounted on the screw baffle 22 and can rotate along with the worm wheel 20), the screw thread direction of the screw 18 at the position matched with the left clamp 31 is opposite to the screw thread direction of the screw 18 at the position matched with the right clamp 37 (as shown in the figure, the screw thread of the screw 18 matched with the left clamp is a left screw thread, and the screw thread matched with the right clamp is a right screw thread), and the worm wheel mechanism includes a worm wheel 20, a right screw nut, a nut, and a nut, and a nut, wherein the nut 18 is fixedly mounted on the nut is fixedly mounted on the outer ring 22, and the outer ring 22 and the outer ring of the screw 18 A coupler 33, a front end worm 34, a handle 35 and a rear end worm 36; the front end worm 34 and the rear end worm 36 are connected through a coupler 33, the front end worm 34 and the rear end worm 36 are provided with spiral teeth 16, the spiral teeth 16 are meshed with a worm wheel 20 which is positioned in the middle of the screw rod 18 and connected through a key, and a handle 35 is arranged at the free end of the front end worm 34/the rear end worm 36. Through setting up front end worm 34/rear end worm 36, can adapt to the length span of flat carrier vehicle better, front end worm 34 links to each other through shaft coupling 33 with rear end worm 36 simultaneously, and the use of shaft coupling 33 can guarantee that two sections worms can rotate simultaneously to reach unanimous slew velocity, make its transmission steady, make like this about in two sets of anchor clamps apart from between the anchor clamps change all the time simultaneously, and then better for the transportation service of long pipe fitting.

The adjusting mechanism 3 has the following adjusting modes: the adjustment is carried out through the handle 35, when the handle 35 rotates clockwise, the spiral teeth 16 rotate clockwise to drive the meshed worm wheel 20 to rotate clockwise, the screw rod 18 rotates clockwise to drive the left clamp 31 meshed with the screw rod to move rightwards, the right clamp 37 moves leftwards, and the distance between the two clamps is reduced; when the handle 35 rotates counterclockwise, the spiral tooth 16 rotates counterclockwise to drive the worm wheel 20 engaged with the spiral tooth 16 to rotate counterclockwise, the screw rod 18 rotates counterclockwise to drive the left clamp 31 to move leftward, the right clamp 37 moves rightward, and the distance between the two clamps is increased, so that the opening distance between the two clamps is adjusted, and the long pipe 41 with different pipe diameters is loaded.

The spiral teeth 16 and the worm wheel 20 are fixedly connected in the worm groove 26 through the worm baffle 28, and the front worm 34 and the rear worm 36 are meshed with the worm wheels 20 on the two groups of clamps 2 simultaneously. The middle position of the screw rod 18, which is not provided with threads, is connected with the worm wheel 20 through a key, so that when the worm wheel 20 rotates, the screw rod 18 can rotate stably. The screw threads on the two sides of the screw rod 18 are opposite in rotating direction, the left side is left-handed, the right side is right-handed, and the worm wheel 20 is meshed with the helical teeth 16.

The tooth length L of the front worm 34 and the rear worm 36 is 1.5 times the thickness H of the worm wheel 20. When the helical teeth 16 rotate, the worm wheel 20 is always in contact with the helical teeth, so that the transmission is smooth, the control is more convenient, and the front end worm 34 and the rear end worm 36 are not provided with threads except the helical teeth 16, so that the processing difficulty is reduced. Adjustment mechanism 3 in this application has adopted worm gear mechanism ingeniously, this worm gear mechanism because the expansion helix angle a of helical tooth 16 is less than the friction angle of worm gear contact for the worm wheel rotates and can not drive the worm and rotate, forms the auto-lock, and the motion of further cooperation lead screw 18 again can let anchor clamps 2 after adjusting, can not change the regulation width owing to the pressure that receives long pipe fitting 41, makes long pipe fitting 41 load that can stabilize on anchor clamps 2.

Further, the four-wheel drive transmission system 4 can be arranged to comprise a front differential 6, a front drive shaft 7, a transfer case 8, a rear drive shaft 9, a storage battery 10, a motor controller 12, a rear differential 13, a steering controller 14, a motor 15 and an on-board DC converter 17; wherein the four-wheel drive transmission system 4 is shielded and protected by side plates 11 arranged at two sides of the lower end of the flat plate 1 and can be connected at the bottom of the flat plate 1 by bolt screw holes, the front differential mechanism 6 is connected with a front wheel shaft provided with front wheels, the front differential mechanism 6 is connected with the transfer case 8 by a front drive shaft 7, the transfer case 8 is connected with one end of a rear drive shaft 9, the other end of the rear drive shaft 9 is connected with a rear differential mechanism 13, the rear differential mechanism 13 is connected with a rear wheel shaft provided with rear wheels, the rear differential mechanism 13 is connected with a steering controller 14 vehicle-mounted DC converter 17 for carrying out voltage stabilization treatment on the voltage transmitted to the whole circuit in the storage battery 10 and assisting the storage battery 10 to charge, the power is supplied by the storage battery 10, the motor controller 12 and the steering controller 14 are driven by a wire control device 5 to further control the action of a motor 15 (the motor controller 12 and the steering controller 14 are connected with the wire control device 5 extending to the tail end of the flat plate 1 by connecting wires), the motor 15 drives the transport vehicle to move forward and backward, and the transport vehicle is high in speed and steering.

The working principle of the four-wheel drive transmission system is as follows:

the transfer case 8 is connected between the front drive shaft 7 and the rear drive shaft 9, and the transfer case 8 can distribute power from the motor 15, can distribute the power to the front drive shaft 7, can distribute the power to the rear drive shaft 9, and can distribute the power to the front drive shaft 7 and the rear drive shaft 9 at the same time, so as to control the front drive, the rear drive or the four-drive.

The front wheels are connected with the front differential mechanism 6, when the front differential mechanism 6 is used for steering, the left and right wheels of the front wheels still normally run when the speed of the wheels is different, and when only the front wheels drive, the flat-plate transport vehicle is steered through the front differential mechanism 6 and the steering controller 14. The motor 15 is used as a power source of the flat plate transport vehicle, is connected with the motor controller 12, then utilizes the storage battery 10 for supplying power, the motor controller 12 controls the working state of the motor 15, and the rotating speed of the motor 15 is changed through the motor controller 12, so that the speed of the flat plate transport vehicle is changed, and the flat plate transport vehicle can be transported at different speeds under different road conditions. The motor controller 12 converts the electric energy in the battery 10 into electric energy required for driving the motor 15, and the motor controller 12 stores the electric energy in the battery through braking feedback, thereby improving the cruising ability. Meanwhile, the power supply of the storage battery 10 can supply power to the steering controller 14, so that the steering controller can work normally to control the steering of the flat-bed transport vehicle. The on-board DC converter 17 can stabilize the voltage in the battery 10 transmitted to the entire circuit, so that the battery can supply power to the entire vehicle and assist in charging the battery 10.

The drive-by-wire device 5 is connected with the motor controller 12 and the steering controller 14, and an operator controls the advancing and retreating, the vehicle speed and the steering of the flat-plate transport vehicle in real time through the drive-by-wire device 5, so that the operation is more convenient and visual, and the transport flat-plate transport vehicle can be controlled more simply. The side plates 11 are positioned between the front wheels and the rear wheels, the whole four-wheel drive transmission system 4 can be protected to the maximum extent, damage caused by direct exposure is prevented, and reverse water dirt on a road during working can be blocked, so that the flat-bed transport vehicle can normally work.

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a long pipe fitting four-wheel drive flat carrier vehicle of anchor clamps adjustable which characterized in that: comprises a flat plate (1), a clamp (2), an adjusting mechanism (3), a four-wheel drive transmission system (4) and a line control device (5); four-wheel drive transmission system (4) is installed at the bottom of flat plate (1), clamp (2) is installed at the top of flat plate (1) through adjusting mechanism (3), adjusting mechanism (3) is used for driving left clamp (31) and right clamp (37) in clamp (2) to move along opposite directions, and four-wheel drive transmission system (4) is driven through wire control device (5) to drive flat plate carrier vehicle to move.

2. The clamp-adjustable long pipe four-wheel drive flat carrier vehicle as claimed in claim 1, wherein: the flat plate (1) comprises a plate body, a clamp front groove (23), a clamp rear groove (24) and a worm groove (26), wherein the clamp front groove, the clamp rear groove and the worm groove are formed in the plate body; wherein recess (23) before the anchor clamps, recess (24) behind the anchor clamps are perpendicular with worm recess (26) respectively, recess (23) before the anchor clamps, recess (24) both sides are equipped with lead screw baffle (22) and are arranged in installing lead screw (18) in adjustment mechanism (3), worm recess (26) both sides are equipped with front end worm (34) that worm baffle (28) are arranged in installing adjustment mechanism (3), rear end worm (36) to install protection apron (27) in worm recess (26) upside, board body lower extreme both sides are equipped with curb plate (11) and are used for protecting four-wheel drive transmission system (4).

3. The clamp-adjustable long pipe four-wheel drive flat carrier vehicle as claimed in claim 1, wherein: anchor clamps (2) are two sets of, and every group structure is the same, all includes: the left clamp (31) and the right clamp (37), the bottom of the left clamp (31) and the bottom of the right clamp (37) are provided with nut seats with feed screw nuts, the axial direction of threaded holes formed in the nut seats with the feed screw nuts is parallel to the movement direction of the left clamp (31)/the right clamp (37), the nut seats with the feed screw nuts are in nested fit with a front clamp groove (23) and a rear clamp groove (24) which are formed in a flat plate (1), threaded holes formed in the nut seats with the feed screw nuts are used for a feed screw (18) in an adjusting mechanism (3) to penetrate, and the left clamp (31) and the right clamp (37) respectively move oppositely along the axial direction of the feed screw (18).

4. The clamp-adjustable long pipe four-wheel drive flat carrier vehicle as claimed in claim 1, wherein: and a rubber anti-skid pad (19) is arranged on the clamping surface of the clamp (2).

5. The clamp-adjustable long pipe four-wheel drive flat carrier vehicle as claimed in claim 1, wherein: the fastening belt (40) is connected and fixed with the clamping surface of the clamp (2) through fastening bolts (42), wherein a plurality of groups of bolt holes are formed in the clamping surface of the clamp (2) and used for adjusting the positions of the fastening bolts (42).

6. The clamp-adjustable long pipe four-wheel drive flat carrier vehicle as claimed in claim 1, wherein: the adjusting mechanism (3) is composed of a screw rod mechanism and a worm gear mechanism, the screw rod mechanism is driven to rotate through the rotation of the worm gear mechanism, and the screw rod mechanism drives the left clamp (31) and the right clamp (37) in the clamp (2) to move along opposite directions.

7. The clamp-adjustable long pipe four-wheel drive flat carrier vehicle as claimed in claim 6, wherein: the screw rod mechanism comprises a screw rod (18), the screw rod (18) sequentially penetrates through nut seats with screw rod nuts at the bottoms of a left clamp (31) and a right clamp (37) in a clamp (2), two ends of the screw rod (18) are fixedly installed through rolling ball bearings (39) which are fixedly connected through an upper sleeve (38) of a screw rod baffle plate (22), the screw thread screwing direction of the screw rod (18) at the position matched with the left clamp (31) is opposite to the screw thread screwing direction of the screw rod (18) at the position matched with the right clamp (37), and the worm wheel mechanism comprises a worm wheel (20), a coupler (33), a front end worm (34), a handle (35) and a rear end worm (36); the front end worm (34) and the rear end worm (36) are connected through a coupler (33), spiral teeth (16) are arranged on the front end worm (34) and the rear end worm (36), the spiral teeth (16) are meshed with a worm wheel (20) which is located in the middle of a screw rod (18) and connected through a key, and a handle (35) is arranged at the free end of the front end worm (34)/the rear end worm (36).

8. The clamp-adjustable long pipe four-wheel drive flat carrier vehicle as claimed in claim 1, wherein: the four-wheel drive transmission system (4) comprises a front differential (6), a front drive shaft (7), a transfer case (8), a rear drive shaft (9), a storage battery (10), a motor controller (12), a rear differential (13), a steering controller (14), a motor (15) and a vehicle-mounted DC converter (17); the front differential (6) is connected with a front wheel shaft provided with front wheels, the front differential (6) is connected with a transfer case (8) through a front driving shaft (7), the transfer case (8) is connected with one end of a rear driving shaft (9), the other end of the rear driving shaft (9) is connected with a rear differential (13), the rear differential (13) is connected with a rear wheel shaft provided with rear wheels, the rear differential (13) is connected with a steering controller (14) and a vehicle-mounted DC converter (17) for carrying out voltage stabilization treatment on voltage transmitted to the whole circuit in the storage battery (10), the storage battery (10) can be charged by wire control, the power is supplied through the storage battery (10), and the motor controller (12) and the steering controller (14) are driven through a device (5) to further control the action of a motor (15).