CN212559213U - Support vehicle with vehicle-mounted crane - Google Patents

Abstract

The utility model discloses a support vehicle with a vehicle-mounted crane, which relates to the technical field of vehicle-mounted cranes and comprises a vehicle head and a carriage, wherein the front side of the carriage is fixedly connected with the vehicle head, the rear crane is arranged in the rear side of the carriage, the right side of the carriage is fixedly provided with a right crane, and the left side of the carriage is fixedly provided with a left crane; has the advantages that: the crane is fixed on the carriage, and when heavy tools are taken and used, the time for taking and placing the crane, moving the crane and unfolding the crane is saved relative to the movable crane; meanwhile, the crane and the carriage are integrated, so that the crane is firmer and safer; when the left and right side cranes are used, the cranes can be ensured to be stably hoisted only by unlocking, fixing and limiting, and can also rotate 180 degrees, and hoisting of machines on the left and right sides is considered; when the rear-side vehicle-mounted crane is used, the first pull wire and the second pull wire can be used for unlocking rapidly and rotating out the crane, after the crane is used, the first pull wire and the second pull wire are used for controlling the lock cylinder and the bolt to be limited and fixed, and the operation is convenient.

Description

Support vehicle with vehicle-mounted crane

Technical Field

The utility model relates to a vehicle-mounted loop wheel machine technical field especially relates to a support car with vehicle-mounted loop wheel machine.

Background

The field operation engineering operation support vehicle is a novel support vehicle with multiple kinds of operation, such as geotechnical, woodworking, metalworking and the like, can be independently compiled and independently operated, can also be uniformly compiled and coordinated with a mountain land operation excavator to operate, and can also provide operation information communication guarantee.

The field operations engineering work support car, it is numerous that inside is equipped with the machines, about being equipped with 25 instrument accessories, wherein heavy machines are 7, adopt novel aluminium alloy material preparation goods shelves, but installation pull formula tray or bracket in the goods shelves, machines and accessories are with reliable firm being fixed in tray or bracket of different modes, take during the operation of being convenient for, wherein heavy machines weight all is more than 100KG, the manpower of being not convenient for is got and is put the use, get the heavy machines in order to put safely fast, we have designed on-vehicle loop wheel machine scheme, the safe quick heavy machines of taking.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a support vehicle with a vehicle-mounted crane.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a support car with on-vehicle loop wheel machine, includes locomotive and carriage, the carriage front side with locomotive fixed connection, carriage rear side internally mounted has the back loop wheel machine, carriage right side fixed mounting has the right loop wheel machine, carriage left side fixed mounting has the left loop wheel machine.

Preferably: the right crane comprises a first fixed column, a first cross beam, a first fixed pulley, a first driving motor, a first wire wheel, a first near guide wheel, a first far guide wheel, a first suspension wire, a first placing frame, a first lifting hook and a first hooking mechanism, wherein the upper end and the lower end of the first fixed column are fixedly connected with the side wall of the carriage through bearings respectively, and a horizontal guide wheel is arranged on the upper periphery of the first fixed column; the first cross beam fixedly arranged on the first fixing column is arranged below the guide wheel, and the first near guide wheel and the first far guide wheel are fixedly arranged on the side surface of the first cross beam respectively; the first driving motor is fixedly arranged in the carriage corresponding to the position of the first fixed column, the output end of the first driving motor is fixedly provided with the first wire wheel, and the first fixed pulley fixedly arranged on the carriage is arranged between the first wire wheel and the first fixed rod; the first wire wheel is wound with the first suspension wire, one end of the first suspension wire extending out of the first wire wheel sequentially bypasses the first fixed pulley, the guide wheel on the upper part of the first fixed column, the first near guide wheel and the first far guide wheel, and the first suspension wire is fixedly connected with the first lifting hook after bypassing the first far guide wheel; the first hook mechanism is fixedly arranged on the side surface of the carriage corresponding to the first hook; the first hooking mechanism comprises a cylinder and a hook, and the hook is connected with the cylinder through a spring; the first fixed column is arranged on the carriage, the first transverse beam is fixedly provided with a first clamping plate at the upper side of one end, far away from the first fixed column, of the first transverse beam, the carriage is fixedly provided with a first clamping plate corresponding to the first clamping plate, and a first clamping column used for clamping and fixing the first clamping plate is inserted in the first clamping plate.

Preferably: the first suspension wire is provided with a first negative weight block at the position of the first lifting hook.

Preferably: the rear crane comprises a lower fixing column, an upper fixing column, a second driving motor, a second wire wheel, a second suspension wire, a second cross beam, a locking block, a limiting plate, a locking column, a first pull wire, a hanging ring, a second pull wire, a fixing mechanism, a bolt, a second guide wheel and a second hook, wherein the lower end of the lower fixing column is fixedly installed on the bottom surface inside the carriage through a bearing, the upper end of the lower fixing column is connected with the lower end of the upper fixing column through a bearing, and the upper end of the upper fixing column is fixedly installed on the top surface inside the carriage through a bearing; the second cross beam is fixedly installed at the lower part of the upper fixing column, the second driving motor is fixedly installed in the middle of the upper surface of the second cross beam, and the second wire wheel is fixedly installed at the output end of the second driving motor; the middle of the lower surface of the second cross beam is fixedly provided with the hanging ring; the locking block is fixedly arranged below one end, close to the upper fixing column, of the second cross beam, the limiting block corresponding to the locking block is fixedly arranged at the corresponding position of the upper portion of the lower fixing column, a locking column used for clamping and fixing the locking block is inserted into the limiting block, and an insertion hole corresponding to the locking column is formed in the locking block; the lower end of the lock cylinder is fixedly connected with the first pull wire; the side face of one end, far away from the upper fixing column, of the second cross rod is fixedly provided with the second guide wheel; the second wire wheel is wound with the second suspension wire, and one end of the second suspension wire extending out of the second wire wheel bypasses the second guide wheel to be fixedly connected with the second hook; the end face of one end, far away from the upper fixed column, of the second cross rod is fixedly clamped with the carriage through the fixing mechanism, the fixing mechanism comprises a fixed plate and a fixed frame corresponding to the fixed plate, the fixed plate is fixedly installed on the end face of the second cross beam, the fixed frame is fixedly installed at the corresponding position of the carriage, a bolt used for clamping and fixing the fixed plate is inserted into the fixed frame, and one end, far away from the fixed plate, of the bolt is fixedly connected with the second pull wire; the first pull wire and the second pull wire respectively extend out of the rear side of the carriage.

Preferably: and a second negative weight block is arranged on the second suspension wire at the position of the second lifting hook.

Preferably: the left crane comprises a second fixed column, a third cross beam, a second fixed pulley, a third driving motor, a third wire wheel, a second near guide wheel, a second far guide wheel, a third suspension wire, a second placing frame, a third lifting hook and a second hooking mechanism, the upper end and the lower end of the second fixed column are fixedly connected with the side wall of the carriage through bearings respectively, and a horizontal guide wheel is arranged on the periphery of the upper part of the second fixed column; the third cross beam fixedly arranged on the second fixing column is arranged below the guide wheel, and the second near guide wheel and the second far guide wheel are fixedly arranged on the side surface of the third cross beam respectively; the third driving motor is fixedly arranged in the carriage corresponding to the position of the second fixed column, the output end of the third driving motor is fixedly provided with the third wire wheel, and the second fixed pulley fixedly arranged on the carriage is arranged between the third wire wheel and the second fixed rod; the third wire wheel is wound with the third suspension wire, one end of the third suspension wire extending out of the third wire wheel sequentially bypasses the second fixed pulley, the guide wheel on the upper part of the second fixed column, the second near guide wheel and the second far guide wheel, and the third suspension wire is fixedly connected with the third hook after bypassing the second far guide wheel; the second hooking mechanism is fixedly arranged on the side surface of the carriage corresponding to the third lifting hook; the second hooking mechanism comprises a cylinder and a hook, and the hook is connected with the cylinder through a spring; the third crossbeam is fixedly provided with a second clamping plate at the upper side of one end far away from the second fixing column, a second clamping and fixing plate is fixedly arranged on the carriage corresponding to the second clamping plate, and a second clamping column used for clamping and fixing the second clamping plate is inserted in the second clamping and fixing plate.

Preferably: and a third negative weight block is arranged on the third suspension wire at the position of the third lifting hook.

Compared with the prior art, the beneficial effects of the utility model reside in that: by arranging the crane to be fixed on the carriage, the time for taking and placing the crane, moving the crane and unfolding the crane is saved relative to the movable crane when heavy equipment is taken and used; meanwhile, the crane and the carriage are integrated, so that the crane is firmer and safer; when the left and right side cranes are used, the cranes can be ensured to be stably hoisted only by unlocking, fixing and limiting, and can also rotate 180 degrees, and hoisting of machines on the left and right sides is considered; when the rear-side vehicle-mounted crane is used, the first pull wire and the second pull wire can be used for unlocking rapidly and rotating out the crane, after the crane is used, the first pull wire and the second pull wire are used for controlling the lock cylinder and the bolt to be limited and fixed, and the operation is convenient.

Drawings

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

Fig. 1 is a schematic diagram of a right-side view structure of a support vehicle with a vehicle-mounted crane according to the present invention.

Fig. 2 is a schematic top view of a support vehicle with a crane according to the present invention.

Fig. 3 is a schematic structural view of a right crane of a support vehicle with a vehicle-mounted crane according to the present invention.

Fig. 4 is an installation diagram of a right crane of a support vehicle with a vehicle-mounted crane according to the present invention.

Fig. 5 is a schematic structural view of a rear crane of a support vehicle with a vehicle-mounted crane according to the present invention.

Fig. 6 is a schematic view showing the installation of a rear crane of a support vehicle with a vehicle-mounted crane according to the present invention.

Fig. 7 is a schematic structural view of a left crane of the support vehicle with a vehicle-mounted crane according to the present invention.

Fig. 8 is a schematic view of the installation of the left crane of the support vehicle with a vehicle-mounted crane according to the present invention.

The reference numerals are explained below:

1. a headstock; 2. a carriage; 3. a right crane; 4. a rear crane; 5. a left crane; 31. a first fixed column; 32. a first cross member; 33. a first fixed pulley; 34. a first drive motor; 35. a first reel; 36. a first proximal guide wheel; 37. a first distal guide wheel; 38. a first suspension wire; 39. a first negative weight; 310. a first placing rack; 311. a first hook; 312. a first hooking mechanism; 313. a first clamping and fixing plate; 314. a first clamping plate; 315. a first clamp post; 41. a lower fixing column; 42. an upper fixing column; 43. a second drive motor; 44. a second reel; 45. a second suspension wire; 46. a second cross member; 47. a locking block; 48. a limiting plate; 49. a lock cylinder; 410. a first pull wire; 411. hanging a ring; 412. a second pull wire; 413. a fixing mechanism; 414. a bolt; 415. a second guide wheel; 416. a second hook; 417. a second negative weight; 51. a second fixed column; 52. a third cross member; 53. a second fixed pulley; 54. a third drive motor; 55. a third reel; 56. a second proximal guide wheel; 57. a second distal guide wheel; 58. a third suspension wire; 59. a third negative weight; 510. a second rack; 511. a third hook; 512. a second hooking mechanism; 513. a second clamping and fixing plate; 514. a second clamping plate; 515. and a second clamping column.

Detailed Description

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, but not for indicating or implying that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention, and further that the terms "first", "second", etc., are used only for descriptive purposes and are not to indicate or imply relative importance or imply the number of technical features being referred to, whereby the features defined as "first", "second", etc., may explicitly or implicitly include one or more such features, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or the two elements may be connected through an intermediate medium, and the specific meaning of the above terms in the present invention can be understood by those skilled in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-8, a support vehicle with a vehicle-mounted crane comprises a vehicle head 1 and a carriage 2, wherein the front side of the carriage 2 is fixedly connected with the vehicle head 1, a rear crane 4 is arranged inside the rear side of the carriage 2, the rear crane 4 is used for hoisting heavy equipment at the rear side of the carriage 2, a right crane 3 is fixedly arranged at the right side of the carriage 2, the right crane 3 is used for hoisting heavy equipment at the right side of the carriage 2, a left crane 5 is fixedly arranged at the left side of the carriage 2, and the left crane 5 is used for hoisting heavy equipment at the left side of the carriage 2; the right crane 3 comprises a first fixed column 31, a first cross beam 32, a first fixed pulley 33, a first driving motor 34, a first wire wheel 35, a first near guide wheel 36, a first far guide wheel 37, a first suspension wire 38, a first placing frame 310, a first hook 311 and a first hooking mechanism 312, wherein the upper end and the lower end of the first fixed column 31 are fixedly connected with the side wall of the carriage 2 through bearings respectively, and a horizontal guide wheel is arranged on the upper part of the first fixed column 31 in a circle to ensure that the first cross beam 32 rotates and the first suspension wire 38 can be tensioned for use all the time; a first cross beam 32 fixedly arranged on the first fixing column 31 is arranged below the guide wheel, and a first near guide wheel 36 and a first far guide wheel 37 are fixedly arranged on the side surface of the first cross beam 32 respectively; a first driving motor 34 is fixedly installed in the carriage 2 corresponding to the position of the first fixing column 31, a first reel 35 is fixedly installed at the output end of the first driving motor 34, and a first fixing pulley 33 fixedly installed on the carriage 2 is arranged between the first reel 35 and the first fixing rod; a first suspension wire 38 is wound on the first wire wheel 35, one end of the first suspension wire 38 extending out of the first wire wheel 35 sequentially bypasses the first fixed pulley 33, a guide wheel on the upper part of the first fixed column 31, a first near guide wheel 36 and a first far guide wheel 37, and the first suspension wire 38 is fixedly connected with a first hook 311 after bypassing the first far guide wheel 37; a first hooking mechanism 312 is fixedly arranged on the side surface of the carriage 2 corresponding to the first hook 311; the first hooking mechanism 312 includes a barrel and a hook, and the hook is connected with the barrel through a spring; a first clamping plate 314 is fixedly installed on the upper side of one end, far away from the first fixing column 31, of the first cross beam 32, a first clamping plate 313 is fixedly installed on the carriage 2 corresponding to the first clamping plate 314, and a first clamping column 315 for clamping and fixing the first clamping plate 314 is inserted in the first clamping plate 313; the first suspension wire 38 is provided with a first negative weight 39 at the position of the first hook 311; the first negative weight 39 is used for increasing weight, so that the first lifting hook 311 is prevented from swinging under the influence of wind power and being difficult to control due to too light weight; the rear crane 4 comprises a lower fixed column 41, an upper fixed column 42, a second driving motor 43, a second wire wheel 44, a second suspension wire 45, a second cross beam 46, a locking block 47, a limiting plate 48, a locking column 49, a first pull wire 410, a hanging ring 411, a second pull wire 412, a fixing mechanism 413, a bolt 414, a second guide wheel 415 and a second hook 416, wherein the lower end of the lower fixed column 41 is fixedly installed on the bottom surface inside the carriage 2 through a bearing, the upper end of the lower fixed column 41 is connected with the lower end of the upper fixed column 42 through a bearing, and the upper end of the upper fixed column 42 is fixedly installed on the top surface inside the carriage 2 through a bearing; a second cross beam 46 is fixedly installed at the lower part of the upper fixing column 42, a second driving motor 43 is fixedly installed in the middle of the upper surface of the second cross beam 46, and a second wire wheel 44 is fixedly installed at the output end of the second driving motor 43; a hanging ring 411 is fixedly arranged in the middle of the lower surface of the second cross beam 46; a locking block 47 is fixedly installed below one end, close to the upper fixing column 42, of the second cross beam 46, a limiting block corresponding to the locking block 47 is fixedly installed at a corresponding position of the upper portion of the lower fixing column 41, a locking column 49 used for clamping and fixing the locking block 47 is inserted into the limiting block, and an insertion hole corresponding to the locking column 49 is formed in the locking block 47; the lower end of the lock column 49 is fixedly connected with a first pull wire 410; a second guide wheel 415 is fixedly arranged on the side surface of one end, far away from the upper fixing column 42, of the second cross rod; a second suspension wire 45 is wound on the second wire wheel 44, and one end of the second suspension wire 45 extending out of the second wire wheel 44 is fixedly connected with a second hook 416 by winding around a second guide wheel 415; the end face of one end of the second cross bar, which is far away from the upper fixing column 42, is fixedly clamped with the carriage 2 through a fixing mechanism 413, the fixing mechanism 413 comprises a fixing plate and a fixing frame corresponding to the fixing plate, the fixing plate is fixedly installed on the end face of the second cross bar 46, the fixing frame is fixedly installed at a corresponding position of the carriage 2, a bolt 414 used for fixedly clamping the fixing plate is inserted into the fixing frame, and one end of the bolt 414, which is far away from the fixing plate, is fixedly connected with a second pull; the first wire 410 and the second wire 412 extend out of the rear side of the cabin 2, respectively; the second suspension wire 45 is provided with a second negative weight 417 at a second hook position; the second negative weight 417 is used for increasing weight, so that the second lifting hook is prevented from swinging under the influence of wind force due to over light weight and is difficult to control; the left crane 5 comprises a second fixed column 51, a third cross beam 52, a second fixed pulley 53, a third driving motor 54, a third wire wheel 55, a second near guide wheel 56, a second far guide wheel 57, a third suspension wire 58, a second placing rack 510, a third lifting hook 511 and a second hooking mechanism 512, wherein the upper end and the lower end of the second fixed column 51 are respectively and fixedly connected with the side wall of the carriage 2 through bearings, and a horizontal guide wheel is arranged on the upper periphery of the second fixed column 51 and used for ensuring that the third cross beam 52 rotates and the third suspension wire 58 can be tensioned for use all the time; a third cross beam 52 fixedly arranged on a second fixing column 51 is arranged below the guide wheel, and a second near guide wheel 56 and a second far guide wheel 57 are respectively fixedly arranged on the side surface of the third cross beam 52; a third driving motor 54 is fixedly arranged in the carriage 2 corresponding to the position of the second fixed column 51, a third wire wheel 55 is fixedly arranged at the output end of the third driving motor 54, and a second fixed pulley 53 fixedly arranged on the carriage 2 is arranged between the third wire wheel 55 and the second fixed rod; a third hanging wire 58 is wound on the third wire wheel 55, one end of the third hanging wire 58 extending out of the third wire wheel 55 sequentially rounds the second fixed pulley 53, a guide wheel on the upper part of the second fixed column 51, a second near guide wheel 56 and a second far guide wheel 57, and the third hanging wire 58 rounds the second far guide wheel 57 and is fixedly connected with a third hook 511; a second hooking mechanism 512 is fixedly arranged on the side surface of the carriage 2 corresponding to the third hook 511; the second hooking mechanism 512 comprises a cylinder and a hook, and the hook is connected with the cylinder through a spring; a second clamping plate 514 is fixedly installed on the upper side of one end, far away from the second fixing column 51, of the third cross beam 52, a second clamping plate 513 is fixedly installed on the carriage 2 corresponding to the second clamping plate 514, and a second clamping column 515 for clamping and fixing the second clamping plate 514 is inserted into the second clamping plate 513; the third suspension wire 58 is provided with a third negative weight 59 at the position of the third lifting hook 511, and the third negative weight 59 is used for increasing weight, so that the third lifting hook 511 is prevented from swinging under the influence of wind power due to too light weight and is difficult to control.

The working principle is as follows: when the right crane 3 is used, the first hook 311 is taken down from the first hooking mechanism 312, the first negative weight 39 is put down from the first placing frame 310, the first clamping column 315 is pulled out, the first clamping plate 314 is separated from the first clamping plate 313, the first cross beam 32 is rotated to a use angle, the external power supply is electrified, the first driving motor 34 drives the first suspension wire 38 to hoist a heavy object on the right side of the carriage 2, and the first suspension wire can be reset when not used; when the rear crane 4 is used, the second pull wire 412 is pulled, the spring on the plug pin 414 is compressed, the plug pin 414 is pulled out from the fixing plate, the fixing plate is separated from the fixing frame, the second cross beam 46 can be rotated to a proper angle, the external power supply is electrified, the second driving motor 43 drives the second hanging wire 45 to hoist the heavy object on the rear side of the carriage 2, when the limiting and fixing are needed, the second cross beam 46 is rotated to the locking block 47 to be attached to the limiting plate 48, the locking column 49 is inserted into the locking block 47 to limit and fix the second cross beam 46 due to the support of the spring on the locking column 49, and when the unlocking is needed, the first pull wire 410 is pulled to pull the locking column 49 out of the locking block 47; when the left crane 5 is used, the third lifting hook 511 is taken down from the second hooking mechanism 512, the third negative weight 59 is put down from the second placing frame 510, the second clamping column 515 is pulled out, the second clamping plate 514 and the second clamping fixing plate 513 are separated, the third cross beam 52 is rotated until the use angle is reached, the external power supply is electrified, the third driving motor 54 drives the third lifting wire 58 to hoist the heavy object on the left side of the carriage 2, and the resetting is performed when the lifting hook is not used.

Having shown and described the basic principles, essential features and advantages of the invention, it should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are merely illustrative, but rather are intended to cover various changes and modifications within the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. The utility model provides a support car with on-vehicle loop wheel machine, includes locomotive (1) and carriage (2), its characterized in that: carriage (2) front side with locomotive (1) fixed connection, carriage (2) rear side internally mounted has back loop wheel machine (4), carriage (2) right side fixed mounting has right loop wheel machine (3), carriage (2) left side fixed mounting has left loop wheel machine (5).

2. The support vehicle with a car crane according to claim 1, wherein: the right crane (3) comprises a first fixing column (31), a first cross beam (32), a first fixed pulley (33), a first driving motor (34), a first wire wheel (35), a first near guide wheel (36), a first far guide wheel (37), a first hanging wire (38), a first placing frame (310), a first lifting hook (311) and a first hooking mechanism (312), wherein the upper end and the lower end of the first fixing column (31) are fixedly connected with the side wall of the carriage (2) through bearings respectively, and a horizontal guide wheel is arranged on the periphery of the upper part of the first fixing column (31); a first cross beam (32) fixedly mounted on the first fixing column (31) is arranged below the guide wheel, and a first near guide wheel (36) and a first far guide wheel (37) are fixedly mounted on the side surface of the first cross beam (32) respectively; the first driving motor (34) is fixedly arranged in the carriage (2) corresponding to the first fixing column (31), the first wire wheel (35) is fixedly arranged at the output end of the first driving motor (34), and the first fixing pulley (33) fixedly arranged on the carriage (2) is arranged between the first wire wheel (35) and the first fixing rod; the first wire wheel (35) is wound with the first suspension wire (38), one end of the first suspension wire (38) extending out of the first wire wheel (35) sequentially bypasses the first fixed pulley (33), a guide wheel on the upper part of the first fixed column (31), the first near guide wheel (36) and the first far guide wheel (37), and the first suspension wire (38) is fixedly connected with the first lifting hook (311) after bypassing the first far guide wheel (37); the first hooking mechanism (312) is fixedly arranged on the side surface of the carriage (2) corresponding to the first hook (311); the first hooking mechanism (312) comprises a cylinder and a hook, and the hook is connected with the cylinder through a spring; the first clamping plate (314) is fixedly mounted on the upper side of one end, far away from the first fixing column (31), of the first cross beam (32), a first clamping plate (313) is fixedly mounted on the carriage (2) corresponding to the first clamping plate (314), and a first clamping column (315) used for clamping the first clamping plate (314) is inserted into the first clamping plate (313).

3. The support vehicle with a car crane according to claim 2, wherein: the first suspension wire (38) is provided with a first negative weight (39) at the position of the first hook (311).

4. The support vehicle with a car crane according to claim 1, wherein: the rear crane (4) comprises a lower fixing column (41), an upper fixing column (42), a second driving motor (43), a second wire wheel (44), a second suspension wire (45), a second cross beam (46), a locking block (47), a limiting plate (48), a locking column (49), a first pull wire (410), a hanging ring (411), a second pull wire (412), a fixing mechanism (413), a plug pin (414), a second guide wheel (415) and a second hook (416), the lower end of the lower fixing column (41) is fixedly installed on the bottom surface inside the carriage (2) through a bearing, the upper end of the lower fixing column (41) is connected with the lower end of the upper fixing column (42) through a bearing, and the upper end of the upper fixing column (42) is fixedly installed on the top surface inside the carriage (2) through a bearing; the lower part of the upper fixing column (42) is fixedly provided with the second cross beam (46), the middle of the upper surface of the second cross beam (46) is fixedly provided with the second driving motor (43), and the output end of the second driving motor (43) is fixedly provided with the second wire wheel (44); the middle of the lower surface of the second cross beam (46) is fixedly provided with the hanging ring (411); the locking block (47) is fixedly mounted below one end, close to the upper fixing column (42), of the second cross beam (46), a limiting block corresponding to the locking block (47) is fixedly mounted at a corresponding position of the upper portion of the lower fixing column (41), a locking column (49) used for clamping and fixing the locking block (47) is inserted into the limiting block, and a jack corresponding to the locking column (49) is arranged on the locking block (47); the lower end of the lock cylinder (49) is fixedly connected with the first pull wire (410); the side surface of one end, far away from the upper fixing column (42), of the second cross beam (46) is fixedly provided with the second guide wheel (415); the second suspension wire (45) is wound on the second reel (44), and one end, extending out of the second reel (44), of the second suspension wire (45) is fixedly connected with the second hook (416) by bypassing the second guide wheel (415); the end face of one end, far away from the upper fixing column (42), of the second cross beam (46) is fixedly clamped with the carriage (2) through the fixing mechanism (413), the fixing mechanism (413) comprises a fixing plate and a fixing frame corresponding to the fixing plate, the fixing plate is fixedly installed on the end face of the second cross beam (46), the fixing frame is fixedly installed at the corresponding position of the carriage (2), a bolt (414) used for clamping the fixing plate is inserted into the fixing frame, and one end, far away from the fixing plate, of the bolt (414) is fixedly connected with the second pull wire (412); the first pull wire (410) and the second pull wire (412) respectively extend out of the rear side of the carriage (2).

5. The support vehicle with a car crane according to claim 4, wherein: and a second negative weight block (417) is arranged on the second suspension wire (45) at the position of the second hook (416).

6. The support vehicle with a car crane according to claim 1, wherein: the left crane (5) comprises a second fixed column (51), a third cross beam (52), a second fixed pulley (53), a third driving motor (54), a third wire wheel (55), a second near guide wheel (56), a second far guide wheel (57), a third hanging wire (58), a second placing frame (510), a third lifting hook (511) and a second hooking mechanism (512), wherein the upper end and the lower end of the second fixed column (51) are fixedly connected with the side wall of the carriage (2) through bearings respectively, and a horizontal guide wheel is arranged on the periphery of the upper part of the second fixed column (51); a third cross beam (52) fixedly mounted on the second fixing column (51) is arranged below the guide wheel, and a second near guide wheel (56) and a second far guide wheel (57) are respectively fixedly mounted on the side surface of the third cross beam (52); the third driving motor (54) is fixedly arranged in the carriage (2) corresponding to the second fixed column (51), the output end of the third driving motor (54) is fixedly provided with the third wire wheel (55), and the second fixed pulley (53) fixedly arranged on the carriage (2) is arranged between the third wire wheel (55) and the second fixed column (51); the third hanging wire (58) is wound on the third wire wheel (55), one end of the third hanging wire (58) extending out of the third wire wheel (55) sequentially bypasses the second fixed pulley (53), a guide wheel on the upper part of the second fixed column (51), the second near guide wheel (56) and the second far guide wheel (57), and the third hanging wire (58) is fixedly connected with the third lifting hook (511) after bypassing the second far guide wheel (57); the second hooking mechanism (512) is fixedly arranged on the side surface of the carriage (2) corresponding to the third hook (511); the second hooking mechanism (512) comprises a cylinder and a hook, and the hook is connected with the cylinder through a spring; the third cross beam (52) is far away from the upper side of one end of the second fixing column (51), a second clamping plate (514) is fixedly installed on the upper side of one end of the third cross beam, a second clamping plate (513) is fixedly installed on the carriage (2) corresponding to the second clamping plate (514), and a second clamping column (515) used for clamping and fixing the second clamping plate (514) is inserted into the second clamping plate (513).

7. The support vehicle with a car crane according to claim 6, wherein: and the third suspension wire (58) is provided with a third negative weight block (59) at the position of the third lifting hook (511).

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