CN112707339A

CN112707339A - Lift trailer

Info

Publication number: CN112707339A
Application number: CN202110013186.4A
Authority: CN
Inventors: 任小博; 杜方; 张晓伟; 邹崇磊; 张晓波; 李化耀; 宋晓霞; 魏建敏
Original assignee: Cama Luoyang Measurement and Control Equipments Co Ltd
Current assignee: Cama Luoyang Measurement and Control Equipments Co Ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-04-27

Abstract

The invention discloses a lifting vehicle, which comprises a chassis, a lifting mechanism arranged above the chassis in a sliding manner, and an adjusting platform arranged above the lifting mechanism and used for adjusting the freedom degree of a hung object; the hanging object can be adjusted to a target height through the lifting mechanism, and then the hanging object can be adjusted to a target position through five degrees of freedom including transverse movement, longitudinal movement, pitching, yawing and transverse rolling through the adjusting platform; the lifting trailer can meet the requirements of high points and low points and has better degree of freedom.

Description

Lift trailer

Technical Field

The invention relates to the technical field of lifting of a trailer, in particular to a trailer.

Background

The lifting trailer is also called as a missile hooking vehicle or a top trailer, is used as a guarantee device for weapon hooking, mainly comprises a chassis, a lifting mechanism, a posture adjusting mechanism, a hydraulic system and the like, can carry out actions of lifting, descending, transverse moving, longitudinal moving, rotating, pitching, transverse rolling and the like on a weapon so as to send the weapon to a suspension position, and then accurately positions and completes the suspension.

The scissor-type lifting trailer is widely applied due to the fact that the lifting height is high, however, due to the limitation of the form of a scissor-type structure, the low point is not low enough, and the requirement of the special airplane on the low hanging point cannot be met. Therefore, there is a need to develop a lift truck that can meet the high point requirement and minimize the low point, and has a good degree of freedom.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides a lifting trailer which can meet the requirements of a high point and a low point and has better degree of freedom.

In order to achieve the purpose, the invention adopts the specific scheme that:

a lifting vehicle comprises a chassis, a lifting mechanism arranged above the chassis in a sliding manner, and an adjusting platform arranged above the lifting mechanism and used for adjusting the freedom degree of a hung object; the hanging object can be adjusted to a target height through the lifting mechanism, and then the hanging object can be adjusted to a target position through five degrees of freedom including transverse movement, longitudinal movement, pitching, yawing and transverse rolling through the adjusting platform;

the lifting mechanism comprises a hydraulic component for providing power for the lifting mechanism, a scissor type lifting component and a lifting power-assisted component which are connected with the hydraulic component, and a bearing platform fixedly arranged above the scissor type lifting component;

the hydraulic assembly comprises a hydraulic cylinder horizontally arranged on the chassis;

the lifting power-assisted assembly comprises a plurality of power-assisted rods connected with the cross rod and lifting rollers which are arranged at one ends of the power-assisted rods far away from the cross rod and can be in rolling contact with the bottom of the bearing platform;

the scissor type lifting assembly comprises a plurality of groups of scissor type lifting arms which are hinged, wherein the first group of scissor type lifting arms which are connected with the chassis in a sliding mode comprise two first scissor arms, two second scissor arms and a cross rod which is hinged to one end of each of the two second scissor arms, and the cross rod which is connected with the chassis in a sliding mode is hinged to a piston rod of the hydraulic cylinder;

the original state of the booster rod extends upwards in an inclined mode, under the driving of the hydraulic cylinder, the cross rod slides from the front end of the chassis to the middle of the chassis, so that the booster rod is gradually straightened relative to the bearing platform in an inclined mode, the shear type lifting assembly and the bearing platform are driven to gradually rise, when the booster rod reaches the limit position and is separated from the bearing platform, the shear type lifting assembly which avoids the dead point starts to work, and the shear type lifting assembly drives the bearing platform to continuously rise to the target height under the driving of the hydraulic cylinder.

Further, the chassis comprises a frame, a steering rear wheel assembly arranged at the rear end of the frame, a front wheel assembly arranged at the front end of the frame and a traction assembly arranged in front of the frame and used for braking and towing the trailer.

Furthermore, the adjusting platform is arranged on the bearing platform and comprises a transverse moving assembly and a longitudinal moving assembly which are positioned at the lower part, a yawing assembly and a pitching assembly which are positioned at the middle part and a transverse rolling assembly which is positioned at the upper part.

Furthermore, the transverse moving assembly comprises a rectangular transverse moving support frame, a transverse moving support plate arranged in the transverse moving support frame, a plurality of pairs of transverse moving rollers fixed on two sides of the bottom of the transverse moving support plate and a transverse moving hand wheel for limiting and fixing the transverse moving support plate, wherein the length of the transverse moving support plate is shorter than that of a front frame of the transverse moving support frame; all be equipped with the sideslip guide way on two frames around sideslip braced frame, all cooperate the sideslip gyro wheel of setting up in the sideslip guide way of corresponding side and can move about for the sideslip guide way and then drive the sideslip backup pad and remove about a plurality of.

Furthermore, the longitudinal moving assembly comprises two groups of longitudinal moving support frames arranged on the left side and the right side of the transverse moving support frame, a plurality of longitudinal moving rollers arranged on the middle parts of the outer sides of the left frame and the right frame of the transverse moving support frame and a longitudinal moving hand wheel for limiting and fixing the transverse moving support frame, the two longitudinal moving support frames are connected through a connecting plate, the length of the connecting plate is greater than that of a front frame of the transverse moving support frame, longitudinal moving guide grooves are formed in the two groups of longitudinal moving support frames, the longitudinal moving rollers are arranged in the longitudinal moving guide grooves on the corresponding sides in a matched mode, and the transverse moving support frame can move back and forth along the longitudinal moving guide grooves.

Furthermore, the driftage subassembly is including locating the carousel bearing in the sideslip backup pad, locating the driftage backup pad on the carousel bearing and being used for fixing the spacer pin to the driftage backup pad, and carousel bearing's outer lane and sideslip backup pad fixed connection.

Furthermore, L-shaped supporting plates are fixed on two sides of the yaw supporting plate; the yaw supporting plate comprises a circular part and flat plate parts symmetrically arranged on two sides of the circular part, the L-shaped supporting plate is connected with the flat plate parts, two limiting columns used for limiting a yaw angle are arranged on the transverse moving supporting plate, and the two limiting columns are respectively fixed on the front side and the rear side of one flat plate part.

Furthermore, every single move subassembly includes a pair of every single move support of locating on driftage backup pad circular portion, locate on the every single move support and can use the product support frame of pitching support as fulcrum pivoted and locate on the L type backup pad in order to carry out elastic support's elastic vibration isolator to the product support frame, elastic vibration isolator can dismantle with the product support frame and be connected.

Further, the roll assembly comprises supporting seats arranged at two ends of the product supporting frame and a plurality of roll rollers arranged on the supporting seats and used for supporting airborne products, and the axis direction of the roll rollers is parallel to the extending direction of the product supporting frame.

Has the advantages that:

1. the lifting vehicle comprises a chassis, a lifting mechanism and an adjusting platform, the lifting mechanism can adjust the hung object to a target height, and then the adjusting platform can adjust five degrees of freedom of the hung object in transverse movement, longitudinal movement, pitching, yawing and rolling so as to adjust the hung object to a target position; through set up lift helping hand subassembly and cut formula lifting unit in elevating system, will cut formula lifting unit and load-bearing platform jack-up a distance through the helping hand pole in the lift helping hand subassembly when initial position, the helping hand pole reaches the dead point when separating with the load-bearing platform of avoiding cutting formula lifting unit and begins to work, cut the formula lifting unit and drive the load-bearing platform under the drive of pneumatic cylinder and continue to rise to the target location, the atress condition of the pneumatic cylinder that the level set up among the prior art has greatly been improved to this design, this design can make the load-bearing platform fall to the minimum, be favorable to the transport of carrier, and can effectively avoid cutting formula lifting unit's mechanical dead point through helping hand mechanism, moreover, the steam generator is simple in structure, and convenient for operation, and the.

2. The adjusting platform comprises a transverse moving component, a longitudinal moving component, a pitching component, a yawing component and a rolling component, can realize the adjustment of five degrees of freedom of transverse moving, longitudinal moving, yawing, pitching and rolling of hung objects, is convenient to adjust and operate by the degrees, can independently adjust the degrees of freedom and can also adjust the degrees of freedom simultaneously, and has compact structure, fully utilizes the space in design and mutually nests the adjustment of the degrees of freedom of motion. The multi-freedom-degree adjustable mechanism has the advantages that the multi-freedom-degree adjusting function is met, the overall dimension is small, and the multi-freedom-degree adjusting problem is solved.

3. The lifting trailer has the advantages of simple structure, convenient adjustment, high degree of freedom and strong applicability, and can meet the requirements of high points and low points.

The present invention will be described in further detail with reference to the drawings and specific examples.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of the lift truck of the present invention.

Fig. 2 is a schematic structural view of the chassis.

Fig. 3 is a front view of the lift truck.

Fig. 4 is a schematic diagram of the construction of the lift mechanism (without hydraulic components).

Fig. 5 is a schematic structural view of the lift assist assembly.

Fig. 6 is a schematic structural diagram of the adjustment platform.

FIG. 7 is a schematic illustration of the construction of the traversing assembly.

FIG. 8 is a schematic structural view of the longitudinally movable support frame and the connecting plate.

FIG. 9 is a schematic view of the structure of the yaw assembly, pitch assembly and roll assembly.

The method comprises the following steps of (1) a graphic mark, a chassis, 2, a lifting mechanism, 3 and an adjusting platform;

101. a steering rear wheel assembly 102, a frame 103, a front wheel assembly 104 and a traction assembly;

201. the device comprises a bearing platform, 202, a hydraulic cylinder, 203, a first scissor arm, 204, a second scissor arm, 205, a booster rod, 206, a cross rod, 207 and a lifting roller;

301. the device comprises a product supporting frame, 302, an elastic vibration isolator, 303, an L-shaped supporting plate, 304, a pitching support, 305, a yawing supporting plate, 306, a limiting column, 307, a transverse rolling roller, 308, a longitudinal moving hand wheel, 309, a transverse moving supporting frame, 310, a transverse moving hand wheel, 311, a turntable bearing, 312, a longitudinal moving supporting frame, 313, a transverse moving supporting plate, 314, a transverse moving roller, 315, a longitudinal moving roller, 316, a connecting plate, 317 and a supporting seat.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.

Referring to fig. 1 to 5, the trailer comprises a chassis 1, a lifting mechanism 2 slidably mounted above the chassis 1, and an adjusting platform 3 disposed above the lifting mechanism 2 for adjusting the degree of freedom of a hanging object; the hanging object can be adjusted to a target height through the lifting mechanism 2, and then the hanging object can be adjusted to a target position through five degrees of freedom including transverse movement, longitudinal movement, pitching, yawing and transverse rolling through the adjusting platform 3;

the lifting mechanism 2 comprises a hydraulic component for providing power for the lifting mechanism 2, a scissor type lifting component and a lifting power-assisted component which are connected with the hydraulic component, and a bearing platform 201 fixedly arranged above the scissor type lifting component;

the hydraulic assembly comprises a hydraulic cylinder 202 horizontally arranged on the chassis 1;

the lifting power-assisted assembly comprises a plurality of power-assisted rods 205 connected with the cross rod 206 and lifting rollers 207 which are arranged at one end of each power-assisted rod 205 far away from the cross rod 206 and can be in rolling contact with the bottom of the bearing platform 201;

the scissor type lifting assembly comprises a plurality of groups of scissor type lifting arms which are hinged, wherein the first group of scissor type lifting arms which are connected with the chassis 1 in a sliding mode comprise two first scissor arms 203, two second scissor arms 204 and a cross rod 206 which is hinged to one ends of the two second scissor arms 204, and the cross rod 206 which is connected with the chassis 1 in a sliding mode is hinged to a piston rod of the hydraulic cylinder 202;

the original state of the booster rod 205 extends obliquely upwards, under the drive of the hydraulic cylinder 202, the cross rod 206 slides from the front end of the chassis 1 to the middle of the chassis 1, so that the booster rod 205 is gradually straightened relative to the bearing platform 201 from the inclination, and then the shear-type lifting assembly and the bearing platform 201 are driven to gradually rise, when the booster rod 205 reaches the limit position and is separated from the bearing platform 201, the shear-type lifting assembly which avoids the dead point starts to work, and the shear-type lifting assembly drives the bearing platform 201 to continuously rise to the target height under the drive of the hydraulic cylinder 202.

It should be explained that, the specific use method of the lifting mechanism is as follows: the load bearing object is placed on the adjusting platform 3, the hydraulic cylinder 202 is started, a piston rod of the hydraulic cylinder 202 pulls the cross rod 206 to move towards the middle of the chassis 1, and through the lever principle, the assistance rod 205 fixed on the cross rod 206 is gradually straightened from an inclined state, the assistance rod 205 can drive the shear type lifting assembly and the load bearing platform 201 to ascend in the process, when the assistance rod 205 ascends to the limit position, the shear type lifting assembly starts to work, and the shear type lifting assembly drives the load bearing platform 201 to continuously ascend to a target height under the driving of the hydraulic cylinder 202.

In detail, in order to reduce the abrasion of pin shafts at all sliding friction positions of the lifting mechanism, ensure the reliable work of equipment and reduce the maintenance cost of the equipment, self-lubricating bearings are selected at all pin shaft joints.

Further, the chassis 1 comprises a frame 102, a steerable rear wheel assembly 101 arranged at the rear end of the frame 102, a front wheel assembly 103 arranged at the front end of the frame 102 and a tow assembly 104 arranged in front of the frame 102 for braking a towing trailer. The front wheel assembly 103 is fixed and is connected with the frame 102 through a rotating shaft. The steerable rear wheel assembly 101 is connected to the frame 102 by a pair of tapered roller bearings to enable flexible steering of the trailer plus or minus 90 by operation of the traction assembly 104. The main body of the traction assembly 104 is made of a steel pipe and comprises a handle, a traction ring and a traction rod, so that the traction assembly is convenient for manual or automobile traction, a braking device is designed at the rear end of the traction assembly 104 and is adjustable, when the traction rod is put down, the braking device is tightly contacted with the steering rear wheel assembly 101 and plays a braking role by friction, and the traction rod is divided into two sections and connected by a pin shaft, so that the traction rod is convenient to disassemble and assemble during transportation.

Referring to fig. 6 to 9, the adjusting platform 3 is disposed on the carrying platform 201, and the adjusting platform 3 includes a traversing component and a longitudinal moving component located at a lower portion, a yawing component and a pitching component located at a middle portion, and a rolling component located at an upper portion, wherein the traversing component is used for realizing left-right horizontal movement of the hung object, the longitudinal moving component is used for realizing front-back horizontal movement of the hung object, the yawing component and the pitching component are used for realizing yawing and pitching of the hung object, and the rolling component is used for realizing rolling movement of the hung object.

Referring to fig. 7, the traverse assembly includes a rectangular traverse support frame 309, a traverse support plate 313 disposed in the traverse support frame 309, a plurality of pairs of traverse rollers 314 fixed to both sides of the bottom of the traverse support plate 313, and a traverse hand wheel 310 for limiting and fixing the traverse support plate 313, wherein the length of the traverse support plate 313 is shorter than that of the front frame of the traverse support frame 309; the front and rear frames of the traverse support frame 309 are provided with traverse guide grooves, and a plurality of pairs of traverse rollers 310 are arranged in the traverse guide grooves on the corresponding sides in a matching manner and can move left and right relative to the traverse guide grooves to drive the traverse support plate 313 to move left and right. The front frame and the rear frame of the transverse moving support frame 309 are both provided with a through hole for the transverse moving hand wheel 310 to pass through, the opposite side walls of the transverse moving support plate 313 are respectively provided with a threaded hole capable of being matched with the transverse moving hand wheel 310, the transverse moving support frame 309 and the transverse moving support plate 303 can be connected through the transverse moving hand wheel 310, and the transverse moving motion is limited. When the traversing handwheel 310 is screwed out, the limit of the traversing freedom degree is cancelled, and the traversing support plate 313 drives the parts above the limiting part to horizontally move left and right along the traversing support frame 309, thereby realizing the adjustment of the traversing freedom degree.

In detail, referring to fig. 7 and 8, the longitudinal movement assembly includes two groups of longitudinal movement support frames 312 disposed on the left and right sides of the lateral movement support frame 309, a plurality of longitudinal movement rollers 315 disposed on the middle portions of the outer sides of the left and right frames of the lateral movement support frame 309, and a longitudinal movement hand wheel 308 for limiting and fixing the lateral movement support frame 309, the two longitudinal movement support frames 312 are connected through a connection plate 316, the length of the connection plate 316 is greater than that of the front frame of the lateral movement support frame 309, the two groups of longitudinal movement support frames 312 are both provided with longitudinal movement guide slots, the longitudinal movement rollers 315 are disposed in the longitudinal movement guide slots on the corresponding sides in a matching manner, and the lateral movement support frame 309 can move back and forth along the longitudinal movement guide slots under. The longitudinal moving support frame 312 is provided with a through hole for the longitudinal moving hand wheel 308 to pass through, the outer sides of the left frame and the right frame of the transverse moving support frame 309 are respectively provided with a threaded hole capable of being matched with the longitudinal moving hand wheel 308, the longitudinal moving support frame 312 and the transverse moving support frame 309 can be connected through the longitudinal moving hand wheel 308, and further longitudinal moving movement is limited. When the longitudinal movement hand wheel 308 is screwed out, the limitation of the longitudinal movement freedom degree is cancelled, and the transverse movement support frame 309 drives the parts above the longitudinal movement support frame to horizontally move back and forth along the longitudinal movement support frame 312, so that the adjustment of the longitudinal movement freedom degree is realized.

Referring to fig. 6 and 9, the yaw assembly includes a turntable bearing 311 disposed on the traverse support plate 313, a yaw support plate 305 disposed on the turntable bearing 311, and a limit pin for fixing the yaw support plate 305, and an outer ring of the turntable bearing 311 is fixedly connected to the traverse support plate 313.

Referring to fig. 6 and 9, L-shaped support plates 303 are fixed to both sides of the yaw support plate 305; the yaw supporting plate 305 comprises a circular part and flat plate parts symmetrically arranged on two sides of the circular part, the L-shaped supporting plate 303 is connected with the flat plate parts, two limiting columns 306 used for limiting the yaw angle are arranged on the transverse moving supporting plate 313, and the two limiting columns 306 are respectively fixed on the front side and the rear side of one flat plate part. When yawing motion is needed, only the limiting pin needs to be pulled out, and the yawing support plate 305 can drive the parts above the yawing support plate to perform yawing motion in an angle limited by the two limiting columns 306, so that the adjustment of the yawing motion freedom degree is realized.

Referring to fig. 6 and 9, the pitching assembly includes a pair of pitching supports 304 disposed on the circular portion of the yaw support plate 305, a product support frame 301 disposed on the pitching supports 304 and capable of rotating with the pitching supports 304 as a pivot, and an elastic vibration isolator 302 disposed on the L-shaped support plate 303 for elastically supporting the product support frame 301, wherein the elastic vibration isolator 302 is detachably connected to the product support frame 301. The product support frame 301 is formed by welding No. 45 steel, and the product support frame 301 can be hinged to the pitching support base 304 through a pin shaft, so that the pitching freedom degree of the product support frame 301 can be adjusted when the product support frame 301 rotates by taking the pin shaft as a center.

Referring to fig. 6 and 9, the rolling assembly includes a support base 317 disposed at two ends of the product support frame 301 and a plurality of rolling rollers 307 disposed on the support base 317 and used for supporting the product on board, and an axial direction of the rolling rollers 307 is parallel to an extending direction of the product support frame 301. The rolling roller 307 contacting with the hanging object adopts a roller made of polyurethane non-metal material to realize the rolling movement of the hanging object, the rolling range is open rolling, and the rolling angle depends on the self limit of the airborne product and the self of an operator.

In addition, the adjusting platform is also provided with a fastening belt for hanging objects, so that the hanging objects can be reliably placed on the adjusting platform.

In detail, the transverse moving function can be realized by loosening the transverse moving hand wheel 310 manually and pushing the hung objects manually; the longitudinal moving hand wheel 308 is loosened manually, and the hung objects are pushed manually to realize the longitudinal moving function; after the limiting pin is pulled out, the hanging object is manually pushed to realize yawing motion; pitching motion can be realized by manually pressing one end of the hung object; the tail part of the hanging object can be manually rotated to realize the rolling function.

The chassis 1 of the lifting trailer is used for supporting and installing various subsystems and component assemblies of the lifting trailer to form the integral shape of the lifting trailer, and the walking, steering and braking functions of the lifting trailer are realized; the lifting mechanism 2 adopts a typical scissor type structure, a sliding mechanism is designed at the bottom, the lifting mechanism can freely move on a slide rail of the frame 102 of the chassis 1, and the up-and-down movement is realized through the telescopic movement of the hydraulic cylinder 202. The adjusting platform 3 is used for realizing multi-degree-of-freedom adjustment of the hung object, and comprises five degrees of freedom such as transverse movement, longitudinal movement, rotation, pitching, rolling and the like. When hanging the articles, firstly, the articles are placed on the adjusting platform 3, after the lifting mechanism 2 is lifted to a certain height by manually operating the hydraulic cylinder 202, the articles can reach the mounting position by adjusting the transverse, longitudinal, rotary, pitching and rolling freedom degrees of the platform 3, so that the products on the plane can be completely aligned with the mounting interface, and then the lifting mechanism 2 is manually lifted for a small distance to finish the product hanging. After the completion, the throttle valve of the hydraulic assembly is manually loosened, and the lifting mechanism 2 is naturally descended to the lowest point.

The present invention provides a lift truck, which has been described in detail above, and the principle and the embodiments of the present invention have been explained herein by using specific examples, which are only used to help understand the method and the core idea of the present invention. It should be noted that any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the protective scope of the present invention to those skilled in the art.

Claims

1. A lift truck characterized by: comprises a chassis (1), a lifting mechanism (2) which is arranged above the chassis (1) in a sliding way and an adjusting platform (3) which is arranged above the lifting mechanism (2) and is used for adjusting the freedom degree of the hung objects; the hanging object can be adjusted to a target height through the lifting mechanism (2), and then the hanging object can be adjusted to a target position through five degrees of freedom including transverse movement, longitudinal movement, pitching, yawing and transverse rolling through the adjusting platform (3);

the lifting mechanism (2) comprises a hydraulic component for providing power for the lifting mechanism (2), a scissor type lifting component and a lifting power-assisted component which are connected with the hydraulic component, and a bearing platform (201) fixedly arranged above the scissor type lifting component;

the hydraulic assembly comprises a hydraulic cylinder (202) horizontally arranged on the chassis (1);

the lifting power-assisted assembly comprises a plurality of power-assisted rods (205) connected with the cross rod (206) and lifting rollers (207) which are arranged at one end of each power-assisted rod (205) far away from the cross rod (206) and can be in rolling contact with the bottom of the bearing platform (201);

the scissor type lifting assembly comprises a plurality of groups of scissor type lifting arms which are hinged, wherein the first group of scissor type lifting arms which are connected with the chassis (1) in a sliding mode comprise two first scissor arms (203), two second scissor arms (204) and a cross rod (206) which is hinged to one end of each of the two second scissor arms (204), and the cross rod (206) which is connected with the chassis (1) in a sliding mode is hinged to a piston rod of the hydraulic cylinder (202);

the original state of the booster rod (205) is that the booster rod extends upwards in an inclined mode, under the driving of the hydraulic cylinder (202), the cross rod (206) slides from the front end of the chassis (1) to the middle of the chassis (1) to enable the booster rod (205) to be gradually straightened relative to the bearing platform (201) in an inclined mode so as to drive the scissor type lifting assembly and the bearing platform (201) to gradually rise, when the booster rod (205) reaches the limit position and is separated from the bearing platform (201), the scissor type lifting assembly which avoids the dead point starts to work, and the scissor type lifting assembly drives the bearing platform (201) to continuously rise to the target height under the driving of the hydraulic cylinder (202).

2. A lift trailer according to claim 1, wherein: the chassis (1) comprises a frame (102), a steering rear wheel assembly (101) arranged at the rear end of the frame (102), a front wheel assembly (103) arranged at the front end of the frame (102) and a traction assembly (104) arranged in front of the frame (102) and used for braking a traction lifting trailer.

3. A lift trailer according to claim 1, wherein: the adjusting platform (3) is arranged on the bearing platform (201), and the adjusting platform (3) comprises a transverse moving assembly and a longitudinal moving assembly which are positioned at the lower part, a yawing assembly and a pitching assembly which are positioned at the middle part, and a transverse rolling assembly which is positioned at the upper part.

4. A lift trailer according to claim 3, wherein: the transverse moving assembly comprises a rectangular transverse moving support frame (309), a transverse moving support plate (313) arranged in the transverse moving support frame (309), a plurality of pairs of transverse moving rollers (314) fixed at two sides of the bottom of the transverse moving support plate (313), and a transverse moving hand wheel (310) for limiting and fixing the transverse moving support plate (313), wherein the length of the transverse moving support plate (313) is shorter than that of a front frame of the transverse moving support frame (309); the front frame and the rear frame of the transverse moving support frame (309) are respectively provided with a transverse moving guide groove, and a plurality of pairs of transverse moving rollers (310) are arranged in the transverse moving guide grooves on the corresponding sides in a matching way and can move left and right relative to the transverse moving guide grooves so as to drive the transverse moving support plate (313) to move left and right.

5. A lift trailer according to claim 4, wherein: the longitudinal moving assembly comprises two groups of longitudinal moving support frames (312) arranged on the left side and the right side of the transverse moving support frame (309), a plurality of longitudinal moving rollers (315) arranged in the middle of the outer sides of the left frame and the right frame of the transverse moving support frame (309) and longitudinal moving hand wheels (308) for limiting and fixing the transverse moving support frame (309), the two longitudinal moving support frames (312) are connected through a connecting plate (316), the length of the connecting plate (316) is greater than that of the front frame of the transverse moving support frame (309), longitudinal moving guide grooves are formed in the two groups of longitudinal moving support frames (312), the longitudinal moving rollers (315) are arranged in the longitudinal moving guide grooves of the corresponding sides in a matched mode, and the transverse moving support frame (309) can move back and forth along the longitudinal moving guide grooves under the action of the longitudinal.

6. A lift trailer according to claim 5, wherein: the yawing assembly comprises a turntable bearing (311) arranged on a traversing support plate (313), a yawing support plate (305) arranged on the turntable bearing (311) and a limiting pin used for fixing the yawing support plate (305), wherein the outer ring of the turntable bearing (311) is fixedly connected with the traversing support plate (313).

7. A lift trailer according to claim 6, wherein: l-shaped support plates (303) are fixed on two sides of the yaw support plate (305); the yaw supporting plate (305) comprises a circular part and flat plate parts symmetrically arranged on two sides of the circular part, the L-shaped supporting plate (303) is connected with the flat plate parts, two limiting columns (306) used for limiting a yaw angle are arranged on the transverse moving supporting plate (313), and the two limiting columns (306) are respectively fixed on the front side and the rear side of one flat plate part.

8. A lift trailer according to claim 7, wherein: every single move subassembly include a pair of every single move support (304) of locating on driftage backup pad (305) circular portion, locate on every single move support (304) and can use the product support frame (301) of pitching support (304) as fulcrum pivoted and locate on L type backup pad (303) in order to carry out elastic support's elastic vibration isolator (302) to product support frame (301), elastic vibration isolator (302) can dismantle with product support frame (301) and be connected.

9. A lift trailer according to claim 8, wherein: the transverse rolling assembly comprises supporting seats (317) arranged at two ends of the product supporting frame (301) and a plurality of transverse rolling rollers (307) arranged on the supporting seats (317) and used for supporting airborne products, and the axis direction of the transverse rolling rollers (307) is parallel to the extending direction of the product supporting frame (301).