CN107444364B

CN107444364B - Anti-falling and anti-skid device for heavy truck

Info

Publication number: CN107444364B
Application number: CN201710597359.5A
Authority: CN
Inventors: 魏航信; 伊鹏
Original assignee: Xian Shiyou University
Current assignee: Xian Shiyou University
Priority date: 2017-07-20
Filing date: 2017-07-20
Publication date: 2023-02-28
Anticipated expiration: 2037-07-20
Also published as: CN107444364A

Abstract

The invention relates to a falling and skid preventing device for a heavy truck, which consists of a support system and a transmission system, wherein a long stepped shaft penetrates through a groove at the tail end of each square support frame, two rubber wheels are symmetrically arranged on the left and right of the long stepped shaft, each rubber wheel is arranged at a step with different diameters of the long stepped shaft, a belt pulley is sleeved at the central shaft section of each long stepped shaft, the belt pulley on the left side is connected with double belt pulleys arranged between side plates of a U-shaped frame through a common flat belt, the belt pulley on the right side is connected with the double belt pulleys through a crossed belt, and each long stepped shaft is arranged at two ends of a guide rail groove through a mounting port.

Description

Anti-falling and anti-skid device for heavy truck

Technical Field

The invention relates to an anti-skid device, in particular to an anti-falling anti-skid device for a heavy truck.

Background

At present, in actual projects, disastrous accidents occur due to the fact that a working vehicle slips and slips. However, the following two main reasons for the accident are: 1. the heavy truck has large load capacity, the road condition of the stop position of the truck is not good, and the stability of the truck body is maintained only by the parking brake of the truck during operation; 2. under the above-mentioned operating mode, in addition to the parking brake of automobile body still supplementary have other anti-skidding devices. Such as: wood blocks, stone blocks, special wedges, etc. The wood blocks and the stone blocks are arranged under each wheel in actual operation, and the defects of insufficient strength, unstable anti-back-slip effect, difficulty in taking out after use and the like exist; the special wedge-shaped block has the defects of large volume, large mass and limited use field. Therefore, there is a need for a device that is easy to use, safe, reliable, and easy to assemble and disassemble to reduce or avoid accidents.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an anti-falling and anti-skid device for a heavy truck, which consists of a support system and a transmission system, is characterized in that the anti-falling and anti-skid device can safely and reliably work under any hard ground working condition, and simultaneously converts harmful torque of a vehicle in the working process into driving torque, thereby saving energy and being green and environment-friendly.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a falling and skid prevention device for a heavy truck comprises a bottom plate 4, wherein a rubber pad is attached to the lower surface of the bottom plate 4 and used for increasing friction between the bottom plate and the ground. The two sides of the bottom plate 4 are welded with side plates 11, the side plates 11 are provided with guide rail grooves A, the guide rail grooves A are in an open state and are called mounting openings B, the inner sides of the side plates 11 are provided with U-shaped frame upper supporting plates 14, and the upper surfaces of the U-shaped frame upper supporting plates 14 are connected with the upper support 1 through the upper ends of the screw rods C. Be provided with rubber wheel B5 on the upper bracket 1, screw rod C passes the upper surface of U-shaped frame upper supporting plate 14 and its lower extreme connects lower carriage 7, lower carriage 7 is through two square support frames 8 of round pin hub connection, long step shaft 15 has worn in the terminal U type groove of every square support frame 8, long step shaft 15 bilateral symmetry has arranged two rubber wheels A3, every rubber wheel A3 is installed in the step department of the different diameters of long step shaft 15, belt pulley 10 has been cup jointed to every long step shaft 15 central shaft section, left belt pulley 10 is connected through ordinary flat belt 16 with the two belt pulleys 9 that set up between U-shaped frame side plate 2, belt pulley 10 and the two belt pulleys 9 on right side are connected through crossing belt 12, every long step shaft 15 passes through installing port B and sets up the both ends at guide rail groove A.

The common flat belt 16 is arranged between the left belt pulley 10 and the double belt pulleys 9, and two ends of the common flat belt 16 are respectively enveloped in the inner arc section of the pulley groove of the left belt pulley 10 and the inner arc section of the pulley groove at the inner side of the double belt pulleys 9.

The cross belt 12 is arranged between the double pulley 9 and the right pulley 10. The belt is twisted by 90 degrees around the length direction of the belt to form a crossed belt 12, and then the two ends of the crossed belt are respectively enveloped in the inner arc section of the pulley groove of the right belt pulley 10 and the inner arc section of the pulley groove at the outer side of the double belt pulleys 9.

The double belt pulleys 9 are coaxial with cylindrical holes formed in the U-shaped frame side plates 2, the center holes of the double belt pulleys 9 are matched with the maximum diameter position of the short stepped shaft 17, the double belt pulleys are axially fixed through sleeves, and the double belt pulleys are circumferentially fixed through key connection.

The belt pulley 10 is coaxial with a cylindrical hole formed in the side plate of the U-shaped groove, the wheel groove of the belt pulley 10 on the left side is aligned with the wheel groove on the rear side of the double belt pulleys 9, the wheel groove of the belt pulley 10 on the right side is aligned with the wheel groove on the front side of the double belt pulleys 9, the axial direction of the belt pulley 10 is fixed through a circular sleeve, and the maximum diameter position of the long stepped shaft 15 is in key connection with the center hole of the belt pulley 10.

The invention has the beneficial effects that:

the torque is transmitted to the device of the invention by taking the rotation torque of the wheels of the vehicle as the driving force when the vehicle slips backwards, and then the torque is transmitted to the rear wheels by a group of common belt transmission and a group of crossed belt transmission, thereby realizing the reverse rotation of the wheels in different rows in the same vehicle. Compared with the prior art, the invention has the following advantages: the invention has the advantages of reasonable design, simple structure, strong applicability, convenient operation, safe and reliable work and environmental protection.

Drawings

Fig. 1 is an overall assembly drawing of the present invention.

Fig. 2 is an isometric view of a general assembly drawing of the present invention.

FIG. 3 is an isometric view of the main support system of the present invention.

Fig. 4 is an isometric view of the square support 8 of the invention.

Fig. 5 is an axial side view of the nut bushing 6 of the present invention.

Fig. 6 is an isometric view of the upper bracket 1 and the lower bracket 7 of the present invention.

Fig. 7 is a schematic diagram of the working process of the invention.

The specific implementation scheme is as follows:

the invention is further described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the anti-falling and anti-sliding device for the heavy truck comprises a bottom plate 4, wherein a rubber pad is attached to the lower surface of the bottom plate 4 and used for increasing friction between the bottom plate and the ground. Two sides of the bottom plate 4 are welded with side plates 11, and the side plates 11 are provided with guide rail grooves A which are in an open state and are called mounting openings B. The mounting opening B is provided mainly for mounting the slide bearing housing, the long stepped shaft 15, and the like at corresponding positions. Referring to fig. 3, the inner side of the side plate 11 is provided with a U-shaped frame upper supporting plate 14, the upper surface of the U-shaped frame upper supporting plate 14 is connected with an upper support 1 through the upper end of a screw rod C, the upper support 1 is provided with a rubber wheel B5, the screw rod C is fastened with the upper surface of the U-shaped frame upper supporting plate 14 through a nut sleeve 6, the screw rod C penetrates through the upper surface of the U-shaped frame upper supporting plate 14 and the lower end thereof is connected with a lower support 7, the lower support 7 is connected with two square support frames 8 through a pin shaft, a long stepped shaft 15 penetrates through a U-shaped groove at the tail end of each square support frame 8, two rubber wheels A3 are symmetrically arranged on the left side and the right side of the long stepped shaft 15, each rubber wheel A3 is installed at steps with different diameters of the long stepped shaft 15, an axial shoulder is fixed with a nut, and a circumferential key connection is fixed. The number of the rubber wheels A3 is eight, the center of each long stepped shaft 15 is sleeved with a belt pulley 10, the belt pulley 10 on the left side is connected with the double belt pulleys 9 arranged between the U-shaped frame side plates 2 through a common flat belt 16, the belt pulley 10 on the right side is connected with the double belt pulleys 9 through a crossed belt 12, and each long stepped shaft 15 is arranged at two ends of the guide rail groove A through a mounting opening B.

The common flat belt 16 is arranged between the left belt pulley 10 and the double belt pulleys 9, and two ends of the common flat belt 16 are respectively enveloped in the inner arc section of the pulley groove of the left belt pulley 10 and the inner arc section of the pulley groove of the inner side of the double belt pulleys 9.

Referring to fig. 5 and 6, the lower bracket 7 is disposed below the nut bushing 6 and is screwed together. The centers of two side plates of the U-shaped groove of the lower bracket 7 are provided with cylindrical holes for mounting pin shafts.

Referring to fig. 4, the square support frame 8 is installed below the lower support frame 7, and is arranged in two, rotated by 180 degrees, and a cylindrical hole at one end is just coupled, and the square support frame 8 and the lower support frame are connected together through a pin shaft. After the connection is finished, the two square support frames 8 can rotate around the pin shaft at a certain angle.

The working principle of the invention is as follows:

the upper bracket 1 and the rubber wheel B5 can move up and down together by rotating the lower end nut of the upper bracket. The lower support 7 can push the square support to move up and down by rotating the nut at the upper end of the lower support. Under the push of the square support frame, the long stepped shaft can drive all the rubber wheels to move left and right together.

Take the front four and the rear eight trucks as an example. Referring to fig. 7, the right hand great circle is the middle row of wheels of the truck, the left hand great circle is the rear row of wheels of the truck, and the two rows of wheels are adjacent. The invention is arranged in the area between the adjacent rows of wheels at the rear part of the truck, and the two sides of the invention are symmetrically arranged.

After the placement is finished, the nut at the upper end of the nut sleeve is rotated to enable the upper bracket 1 to move upwards, and the supporting rubber wheel B5 moves upwards to enable the supporting rubber wheel B to be attached to the two wheels; meanwhile, the lower end nut of the nut sleeve 6 is rotated to enable the lower support frame 7 to move downwards, the square support frame 8 is expanded to push the rubber wheels A3 on two sides of the lower end to move towards two sides in the guide rail until the rubber wheels A3 are pressed and tightly attached to the wheels.

As shown in fig. 7, when the vehicle is undergoing a reverse slip, the rotational moment of the front wheels of the vehicle acts as a driving force. If the front wheel of the truck rotates anticlockwise at the moment, friction exists between the front wheel and a rubber wheel set consisting of the right rubber wheel A3, so that the right rubber wheel set rotates clockwise in a reverse direction, a belt wheel coaxial with the rubber wheel set rotates, the middle double belt wheel 9 rotates anticlockwise through the crossed belt 12, a common flat belt 16 is wound on the other belt wheel groove of the double belt wheel 9, the left rubber wheel set rotates anticlockwise through transmission, the rubber wheel set rotates the rear wheel of the truck clockwise through friction, and therefore the front wheel and the rear wheel of the same truck rotate in opposite directions, and the anti-slip purpose is achieved.

Meanwhile, the bottom plate bears the weight of a part of the vehicle, so that the vehicle is tightly attached to the ground. And the rubber pad is pasted on the lower surface of the bottom plate 4, so that the friction between the ground and a vehicle is increased, and the vehicle is less prone to slip backwards.

Claims

1. A falling and skid preventing device for a heavy truck is characterized by comprising a bottom plate (4), wherein a rubber pad is pasted on the lower surface of the bottom plate (4) and used for increasing friction between the bottom plate and the ground, side plates (11) are welded on two sides of the bottom plate (4), a guide rail groove (A) is formed in each side plate (11), the guide rail groove (A) is in an open state and is called as an installation opening (B), a U-shaped frame upper supporting plate (14) is arranged on the inner side of each side plate (11), the upper surface of each U-shaped frame upper supporting plate (14) is connected with an upper support (1) through the upper end of a screw (C), a rubber wheel B (5) is arranged on each upper support (1), the screw (C) penetrates through the upper surface of each U-shaped frame upper supporting plate (14) and the lower end of each screw is connected with a lower support (7), lower carriage (7) are through two square support frames (8) of round pin hub connection, long step shaft (15) have been worn in the U type groove of the end of every square support frame (8), long step shaft (15) bilateral symmetry has arranged two rubber wheels A (3), the step department of the different diameters at long step shaft (15) is installed in every rubber wheel A (3), belt pulley (10) have been cup jointed to every long step shaft (15) central shaft section, left belt pulley (10) are connected through ordinary flat belt (16) with setting up two belt pulleys (9) that set up between U-shaped frame curb plate (2), belt pulley (10) on right side are even through crossing area (12) with two belt pulleys (9) Each long stepped shaft (15) is arranged at two ends of the guide rail groove (A) through a mounting opening (B);

the common flat belt (16) is arranged between the belt pulley (10) on the left side and the double belt pulleys (9), and two ends of the common flat belt (16) are respectively enveloped in the inner arc section of the pulley groove of the belt pulley (10) on the left side and the inner arc section of the pulley groove on the inner side of the double belt pulleys (9);

the crossed belt (12) is arranged between the double belt pulleys (9) and the right belt pulley (10); the belt is twisted by 90 degrees around the length direction thereof to form a crossed belt (12), and then the two ends of the crossed belt are respectively enveloped in the inner arc section of the pulley groove of the right belt pulley (10) and the inner arc section of the pulley groove at the outer side of the double belt pulleys (9).

2. The anti-falling and anti-sliding device for the heavy truck as claimed in claim 1, wherein the double pulleys (9) are coaxial with the cylindrical hole formed on the U-shaped frame side plate (2), the central holes of the double pulleys (9) are matched with the position with the maximum diameter of the short stepped shaft (17), the double pulleys are axially fixed through a sleeve, and the double pulleys are circumferentially fixed through a key connection.

3. The anti-falling and anti-skid device for the heavy truck as claimed in claim 1, wherein the pulley (10) is coaxial with a cylindrical hole formed on a side plate of the U-shaped groove, the pulley groove of the pulley (10) on the left side is aligned with the pulley groove on the rear side of the double pulleys (9), the pulley groove of the pulley (10) on the right side is aligned with the pulley groove on the front side of the double pulleys (9), the pulley groove is axially fixed through a circular sleeve, and the maximum diameter part of the long stepped shaft (15) is in key connection fit with the central hole of the pulley (10).