CN111591200A - Accident car special trailer based on motor control goes up and down - Google Patents

Abstract

The invention discloses a special trailer for an accident automobile based on motor-controlled lifting, wherein a driving motor on trailer guardrails on two side edges of a trailer frame of a remote control trailer chassis rotates forward, a trailer bottom plate is driven by a driving gear and a circular rack to reduce the height, a hydraulic control mechanism controls a small crane to put down a lifting hook to hook a steel wire rope on a front wheel of the story automobile and lift the hook and the front part of the accident automobile, a telescopic arm of the small crane retracts, after the accident automobile is pulled onto the trailer bottom plate, the driving motor rotates reversely, the driving gear and the circular rack drive the trailer bottom plate to rise to the normal height, transient impact and vibration displacement can not be generated, the balance of the accident automobile can be always kept in the lifting, traction and transportation processes can be also used for limiting and fixing the accident automobile, the inclination or falling in the transportation process can be prevented, the secondary accident caused by secondary, simple and compact structure, convenient production, manufacture, installation, use and operation and low cost.

Description

A special trailer for accident vehicles based on motor-controlled lifting

technical field

The invention relates to a special trailer for accident vehicles based on motor-controlled lifting and lowering in the transportation equipment technology of the road traffic industry.

Background technique

At this stage, residents' lives are becoming more and more colorful, and cars have become one of the commonly used household items. With the number and frequency of vehicles, various unexpected factors have also increased. When vehicles encounter accidents, failures and other unexpected factors, they cannot drive normally. , It needs to be towed, loaded and transported to the car repair center by a special trailer, and the accident vehicle needs to be transported to the accident processing center. The traditional trailer uses a cargo box to load and transport the accident car, which is large and heavy. Inconvenient, high consumption of raw materials, high cost, inconvenient to limit and fix, and the height of the carriage chassis from the ground is high, the lifting and towing operations are inconvenient, the loading and unloading is difficult, it is difficult to maintain the balance of the accident vehicle during the lifting and towing process, and the stability is not stable. Well, it is easy to slip and cause a secondary collision, and the use of a mechanical lifting mechanism to lift the accident car will produce an instantaneous impact, which is easy to cause displacement due to vibration.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a chassis capable of lifting and lowering, stable transmission, simple and compact structure, convenient production, installation, use and operation, low cost, easy to fix accident vehicles, stable and reliable, and a special purpose vehicle for accident vehicles based on motor-controlled lifting and lowering. trailer.

The present invention is based on the motor-controlled lifting and lowering special trailer for accident vehicles, which is characterized in that: it includes a trailer chassis composed of a trailer frame and a trailer bottom plate located inside the trailer frame, the trailer frame is a horizontal U-shaped structure, and the opening direction of the U-shaped structure faces toward The rear of the trailer; the front and rear ends of the two sides of the trailer frame are fixedly connected with vertical support rods, respectively, and a horizontal trailer guardrail is fixedly connected between the tops of the vertical support rods at the front and rear ends of each side. Straight fence, the lower end of each fence is connected to the upper surface of the trailer frame; the first fence near the front end of the trailer frame and the last fence near the rear end of the trailer frame under the trailer fence on each side are round pipes, and the edge of the trailer bottom plate corresponds to the first fence on both sides. The positions of one fence and the last fence are respectively fixed and connected with circular racks extending vertically upward. The circular racks are respectively fitted in the circular tubes at the corresponding positions, and the lower surfaces of the trailer guardrails on both sides are close to the first fence. A two-way drive motor is installed at the position of the last fence and the drive shaft of the drive motor extends into the inner cavity of the circular tube at the corresponding position and is connected with a drive gear, which meshes with the circular rack;

A small crane is fixedly installed in the middle of the front-end lateral side of the trailer frame, and the telescopic arm of the small crane extends to the upper part of the rear of the trailer bottom plate and is connected with a hook;

A hydraulic control mechanism is fixedly installed at the position where the front end lateral side of the trailer frame is located on one side of the small crane, and the hydraulic control mechanism is connected to the small crane through a hydraulic oil pipe;

There is a distance between the rear end of the trailer bottom plate and the trailer frame, and the small crane is fixedly installed on the inner side of the front end lateral side of the trailer frame;

Both the hydraulic control mechanism and the drive motor are communicatively connected to an external remote control device;

The rear end of the trailer bottom plate is hingedly connected with an inclined transition plate;

Motor brackets are respectively installed on the lower surface of the trailer guardrail near the first fence and the last fence, and the driving motor is positioned and fixedly installed through the motor bracket;

The inner diameter of the circular tube is larger than the outer diameter of the circular rack by 0.2 mm;

A part of the material near the upper end of the circular tube forms a semicircular groove, exposing the upper section of the circular rack, and the drive shaft and drive gear extend into the semicircular groove to engage with the upper section of the circular rack.

The invention is based on a special trailer for accident vehicles that is controlled by the motor. The remote control drives the motor to rotate in the forward direction, drives the driving gear to drive forward, drives the circular rack to descend along the inner cavity of the circular tube, drives the trailer bottom plate to lower the height, and the hydraulic control mechanism controls the small crane. Put down the hook to hang the wire rope on the front wheel of the story car, and hoist the hook and the front of the accident car, the telescopic arm of the small crane retracts, and after the accident car is pulled to the trailer floor, the drive motor rotates in the reverse direction, and through the drive Gears and circular racks drive the trailer floor to the normal height without instantaneous impact and vibration displacement. The balance of the accident vehicle can always be maintained during lifting, towing and transportation. The trailer guardrail can also be used to limit and fix the accident vehicle to prevent accidents. It tilts or falls off during transportation to avoid secondary accidents caused by secondary collisions. The transportation process is stable and reliable, the structure is simple and compact, the manufacturing, installation, use and operation are convenient, and the cost is low.

Description of drawings

Fig. 1 is a side view structural schematic diagram of a special trailer for accident vehicles based on motor-controlled lifting according to an embodiment of the present invention;

FIG. 2 is a schematic top-view structural diagram of a special trailer for accident vehicles based on motor-controlled lifting according to an embodiment of the present invention.

Detailed ways

As shown in the figure, a special trailer for accident vehicles based on motor-controlled lifting, abandons the cargo box trailer box of the traditional trailer, and replaces it with a trailer chassis composed of a trailer frame 12 and a trailer bottom plate 13 located inside the trailer frame 12. Its specific structure is:

The trailer frame 12 is selected to be set as a horizontal U-shaped structure, the opening direction of the U-shaped structure is toward the rear of the trailer, the trailer bottom plate is arranged inside the U-shaped structure, and the middle part of the trailer bottom plate 13 constitutes the accident vehicle transportation bearing surface, and the opening part of the U-shaped structure is convenient for accidents. The car enters the top of the trailer bottom plate 13; and an inclined transition plate is hingedly connected to the rear end of the trailer bottom plate 13, so that the accident vehicle can enter the top of the trailer bottom plate along the inclined transition plate, so as to reduce the traction force;

Vertical support rods 52 are fixedly connected to the front and rear ends of the two sides of the trailer frame 12 respectively, and a horizontal trailer guardrail 5 is fixedly connected between the top ends of the two vertical support rods 52 at the front and rear ends of each side of the trailer frame 12 respectively. , a number of vertical fences 51 are evenly arranged and fixedly connected below the trailer guardrail 5 on each side, and the lower end of each fence 51 is fixedly connected to the upper surface of the trailer frame 12. The root fence and the last fence near the rear end of the trailer frame are set as the structure of a round pipe 7, and the round pipe 7 adopts a steel pipe;

The edges of the two sides of the trailer bottom plate 13 correspond to the first fence and the last fence on both sides, that is, the positions of the circular tubes 7 are respectively fixed and connected to a circular rack 8 extending vertically upward, and each circular rack 8 The inner diameter of the circular tube 7 is larger than the outer diameter of the circular rack 8; the lower surfaces of the trailer guardrails 5 on both sides are installed at the positions close to the first fence and the last fence respectively. A bidirectional drive motor 11, the drive shaft 10 of each drive motor 11 extends into the inner cavity of the circular tube 7 at the corresponding position and is connected to a drive gear 9, and the drive gear 9 meshes with the circular rack 8;

A small crane 1 is fixedly installed in the middle of the front end transverse side of the trailer frame 12, and the telescopic arm 2 of the small crane extends to the upper part of the rear of the trailer bottom plate 13, and is connected with a hook 3;

The hydraulic control mechanism 4 is fixedly installed at the position where the front lateral side of the trailer frame 12 is located on the side of the small crane, and the hydraulic control mechanism 4 is connected to the small crane 1 through a hydraulic oil pipe to provide hydraulic power;

The hydraulic control mechanism 4 and the drive motor 11 are both connected to the external remote control device in communication, and the remote control device synchronously controls the synchronous operation of a total of four drive motors 11 on both sides, and the hydraulic control mechanism 4 and the drive motor 11 act in sequence according to the operation steps;

When the accident vehicle is loaded, the drive motor 11 is remotely activated to drive the drive gear 9 to rotate in the forward direction, and the circular rack 8 is driven to descend along the inner cavity of the circular tube 7, which drives the trailer bottom plate 13 to slowly lower to the ground, and the hydraulic control mechanism 4 controls the small crane. 1 Put down the hook 3 hook the wire rope on the front wheel of the story car, and lift the hook and the front of the accident car, the telescopic arm 2 of the small crane retracts, and after the accident car is pulled to the trailer floor, the drive motor 11 reverses. It rotates in the direction of rotation, and drives the trailer bottom plate 13 to rise to the normal height through the driving gear 9 and the circular rack 8, which will not produce instantaneous impact and vibration displacement, and can always maintain the balance of the accident vehicle during lifting, towing, and transportation. It is used to fix the accident car at the limit to prevent it from tilting or falling off during the transportation process, avoiding the secondary collision caused by the secondary accident, the transportation process is stable and reliable, the structure is simple and compact, the manufacturing, installation and operation are convenient, and the cost is low. Reverse the above steps to remove the accident car.

Further, a distance is set between the rear end of the trailer bottom plate 13 and the trailer frame 12, and the small crane 1 is fixedly installed on the inner side of the front end lateral side of the trailer frame 12;

A motor bracket 6 is respectively installed on the lower surface of the trailer fence 5 near the first fence and the last fence, and the driving motor 11 is positioned and fixedly installed through the motor bracket 6 .

The invention is based on a special trailer for accident vehicles that is controlled by the motor. The remote control drives the motor to rotate in the forward direction, drives the driving gear to drive forward, drives the circular rack to descend along the inner cavity of the circular tube, drives the trailer bottom plate to lower the height, and the hydraulic control mechanism controls the small crane. Put down the hook to hang the wire rope on the front wheel of the story car, and hoist the hook and the front of the accident car, the telescopic arm of the small crane retracts, and after the accident car is pulled to the trailer floor, the drive motor rotates in the reverse direction, and through the drive Gears and circular racks drive the trailer floor to the normal height without instantaneous impact and vibration displacement. The balance of the accident vehicle can always be maintained during lifting, towing and transportation. The trailer guardrail can also be used to limit and fix the accident vehicle to prevent accidents. It tilts or falls off during transportation to avoid secondary accidents caused by secondary collisions. The transportation process is stable and reliable, the structure is simple and compact, the manufacturing, installation, use and operation are convenient, and the cost is low.

Specific design ideas:

The invention relates to a traffic accident vehicle and a special trailer which cannot be driven due to the failure of the vehicle, and relates to a special trailer for motor-controlled lifting and lowering of the accident vehicle, belonging to the technical field of transportation equipment.

The purpose of the present invention is to provide a special trailer for the motor-controlled lifting and lowering of the accident vehicle, which has a reasonable structure, a wide range of uses and strong practicability. In order to achieve the above object, the specific technical embodiments of the present invention:

A special trailer for motor-controlled lifting of accident vehicles, comprising: 1 small crane, 2 small crane telescopic arms, 3 hooks, 4 hydraulic control mechanisms, 5 trailer guardrails, 6 motor brackets, 7 steel pipes, 8 circular racks, 9 drive gear, 10 motor drive shaft, 11 drive motor, 12 trailer frame, 13 trailer floor.

The small crane 1 is connected with the small crane telescopic arm 2, the hook 3 is connected with the small crane telescopic arm 2 through the wire rope, the small crane 1 is fixed on the trailer frame 12, the hydraulic control mechanism 4 is fixed on the trailer frame 12, and the trailer guardrail 5 It is fixedly connected with the trailer frame 12, the upper end of the steel pipe 7 is fixed with the trailer guardrail 5, the lower end of the steel pipe 7 is fixed with the trailer frame 12, the circular rack 8 slides up and down in the steel pipe 7, the lower end of the circular rack 8 is fixed with the trailer bottom plate 13, The upper end of the rack 8 is rotatably connected with the drive gear 9 , the drive gear 9 is connected with the motor drive shaft 10 and the drive motor 11 , and the drive motor 11 is fixedly connected with the trailer frame 12 through the motor bracket 6 .

Further; the hydraulic control mechanism 4 is provided with a hydraulic oil pump, a hydraulic oil tank, a hydraulic valve body, a remote control device, and the hydraulic control mechanism 4 controls the oil supply and unloading of the small crane.

Further; two groups of drive gears 9 and circular racks 8 are installed on the guardrails on both sides of the trailer to form a transmission mechanism, and four bidirectional drive motors 11 and a set of remote control devices are configured to control the 4 bidirectional drive motors 11 to work synchronously.

Further; the upper end of the steel pipe 7 is provided with a semicircular groove, which is convenient for the gear 9 to mesh with the circular rack 8 sliding in the steel pipe 7, and the gap between the circular rack 8 and the steel pipe 7 is set to 0.2 mm.

Instructions

When using a special trailer, use the remote control to make the 4 bidirectional drive motors rotate forward and drive the gears to rotate, slowly lower the rack and the trailer bottom to the ground, and then the remote control device will lower the hook of the small crane, and then put the hook Hanging on the wire rope of the front wheel of the accident car, the remote control device hoists the hook and the front part of the accident car, the remote control device controls the retraction of the telescopic arm of the small crane, and pulls the accident car to the trailer bottom plate, and then the remote control makes 4 bidirectional The motor reverses and drives the drive gear to rotate, slowly raise the circular rack and trailer bottom to the original position, and lower the hook of the small crane. When unloading the accident car, the operation process is reversed.

The advantages and beneficial effects of the present invention are:

1. The rack and pinion mechanical transmission mechanism enhances the stability of the bottom plate rising.

2. The motor and remote control reduce the labor intensity of personnel.

3. Reduced the chance of the trailer floor sliding down under gravity.

4. Since the outer wall of the transmission mechanism is fixed by steel pipes, the overall structure of the trailer is strengthened.

Claims (9)

1. The utility model provides a special trailer of accident car based on motor control goes up and down which characterized in that: the trailer chassis is composed of a trailer frame and a trailer bottom plate arranged in the trailer frame, the trailer frame is of a transverse U-shaped structure, and the opening direction of the U-shaped structure faces the tail part of the trailer; the front end and the rear end of two side edges of the trailer frame are respectively and fixedly connected with a vertical support rod, a horizontal trailer guardrail is respectively and fixedly connected between the top ends of the vertical support rods at the front end and the rear end of each side, a plurality of vertical fences are uniformly arranged below the trailer guardrail at each side, and the lower end of each fence is connected to the upper surface of the trailer frame; the first fence that is close to trailer frame front end below every side trailer guardrail and the last fence that is close to trailer frame rear end are the pipe, the position that trailer bottom plate edge corresponds first fence in both sides and last fence respectively fixedly connected with vertical upwards extending circular rack, circular rack wears the dress respectively in the pipe on the relevant position, two-way driving motor is installed respectively to the position that both sides trailer guardrail lower surface is close to first fence and last fence, driving motor's drive shaft stretches into to the relevant position pipe inner chamber and is connected with drive gear, drive gear and circular rack toothing.

2. The motor-controlled lifting-based accident vehicle special trailer according to claim 1, wherein: the middle part of the transverse edge of the front end of the trailer frame is fixedly provided with a small crane, and a telescopic arm of the small crane extends to the upper part of the rear part of the trailer bottom plate and is connected with a lifting hook.

3. The motor-controlled lifting-based accident vehicle special trailer according to claim 2, wherein: and a hydraulic control mechanism is fixedly arranged at the position of the transverse edge of the front end of the trailer frame, which is positioned at one side of the small crane, and the hydraulic control mechanism is connected to the small crane through a hydraulic oil pipe.

4. The motor-controlled lifting-based accident vehicle special trailer according to claim 3, wherein: a distance is arranged between the rear end of the trailer bottom plate and the trailer frame, and the small crane is fixedly installed on the inner side face of the transverse edge of the front end of the trailer frame.

5. The motor-controlled lifting-based accident vehicle special trailer according to claim 4, wherein: the hydraulic control mechanism and the driving motor are both connected to an external remote control device in a communication mode.

6. The trailer special for the accident automobile based on the motor control lifting as claimed in claims 1-5, wherein: the rear end of the trailer bottom plate is hinged with an inclined transition plate.

7. The motor-controlled lifting-based accident vehicle special trailer according to claim 6, wherein: and motor supports are respectively arranged at the positions, close to the first fence and the last fence, of the lower surface of the trailer guardrail, and the driving motor is fixedly installed through the motor supports in a positioning mode.

8. The motor-controlled lifting-based accident vehicle special trailer according to claim 7, wherein: the inner diameter of the circular pipe is 0.2mm larger than the outer diameter of the circular rack.

9. The motor-controlled lifting-based accident vehicle special trailer according to claim 8, wherein: a part of material is removed from the position, close to the upper end, of the circular tube to form a section of semicircular groove, the upper section of the circular rack is exposed, and the driving shaft and the driving gear extend into the semicircular groove to be meshed with the upper section of the circular rack.

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