CN112726476A

CN112726476A - Lower turnover type obstacle avoidance device

Info

Publication number: CN112726476A
Application number: CN202011561469.4A
Authority: CN
Inventors: 郭民政
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-30

Abstract

The invention relates to the technical field of road snow removal, and discloses a downward turnover type obstacle avoidance device, which comprises a traction vehicle body, the front end of the traction vehicle body is fixedly connected with a driving force arm, the inner wall of the driving force arm is provided with a telescopic cylinder, the front end of the traction vehicle body is movably connected with a lower lifting rod, the lower part of the telescopic cylinder is movably connected with an upper lifting rod, the left side of the upper lifting rod is movably connected with a shovel body bracket, the left part of the shovel body bracket is welded with a shovel body seat, the lower part of the shovel body seat is provided with a fixed frame, the lower part of the shovel body bracket is hinged with a high-pressure cylinder, one end of the high-pressure cylinder far away from the shovel body bracket is hinged with a bracket, the left end of the fixing frame is hinged with a first rocker, the right-hand member of mount articulates there is the second rocker, the inboard threaded connection of shovel body seat has shovel body inner panel, the left end of bracket has the shovel sword through countersunk head bolt threaded connection. The obstacle avoidance device can be crossed when meeting an obstacle, is small in impact force bearing capacity, and is stable and reliable in resetting.

Description

Lower turnover type obstacle avoidance device

Technical Field

The invention relates to the technical field of road snow removal, in particular to a downward turnover type obstacle avoidance device.

Background

In recent years, with the rapid development of economy, the total mileage of urban roads and expressways in China is rapidly increasing. In northern areas of China, the weather of rain and snow is several months every year, and particularly, in many northern areas, heavy snow is generally fallen to cause heavy snow to block roads, so that not only are various inconveniences brought to traffic transportation and daily life of people, but also the driving safety is seriously threatened, and the most direct influence brought by accumulated snow on the roads is the reduction of the friction coefficient of the roads. When the friction coefficient of the road surface is continuously reduced, the probability of accidents is increased. Therefore, the development of the road snow removal technology has important significance for guaranteeing the road smoothness and the driving safety in winter.

At present, the problems of roads and urban roads in China are highlighted by lower flatness of the road surface and more serious local damage. In addition to a manhole cover which is large in area, a speed bump is often provided on an urban road to reduce the driving speed of a local road section. The presence of these obstacles poses a potential threat to the safety of snow removal operations. Therefore, snow removing machines must be configured with associated structures that climb over obstacles.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a downward turnover type obstacle avoidance device which has the advantage of climbing over obstacles and solves the problem of dangerous factors in snow removal operation.

(II) technical scheme

In order to realize the purpose of crossing the obstacle, the invention provides the following technical scheme: the utility model provides a lower convertible obstacle-avoiding device, is including drawing the automobile body, the front end fixedly connected with who draws the automobile body drives the power arm, the inner wall that drives the power arm is provided with the telescoping cylinder, the front end swing joint who draws the automobile body has lower lifting bar, the lower part swing joint of telescoping cylinder has last lifting bar, the left side swing joint who goes up lifting bar has shovel body support, the left part welding of shovel body support has shovel body seat, the lower part of shovel body seat is provided with the mount, the lower part of shovel body support articulates there is high-pressure cylinder, the one end that shovel body support was kept away from to high-pressure cylinder articulates there is the bracket, the left end of mount articulates there is first rocker, the right-hand member of mount articulates there is the second rocker, the inboard threaded connection of shovel body seat has shovel body inner panel, the left end of bracket has the shovel sword through countersunk head bolt.

Preferably, the shovel blade is installed at the lower edge of the inner plate of the shovel body and attached to the inner plate of the shovel body through the obstacle avoidance linkage mechanism, and the bracket, the first rocker, the second rocker and the high-pressure cylinder form the obstacle avoidance linkage mechanism.

Preferably, the bracket and the fixed frame are hinged through a first rocker and a second rocker to form a parallelogram structure.

Preferably, the number of the shovel blades is four, the shovel blades are arranged on two sides of the inner plate of the shovel body through two groups of obstacle avoidance linkage mechanisms, and the two groups of obstacle avoidance linkage mechanisms are parallel to each other.

Preferably, the first rocker and the second rocker are hinged with the bracket, and the included angles between the first rocker and the horizontal direction are equal to those between the second rocker and the horizontal direction.

Preferably, the lower lifting bar supports the shovel body at a specific distance from the ground.

Preferably, the inside of the high pressure cylinder is compressed gas.

(III) advantageous effects

Compared with the prior art, the invention provides a down-turnover type obstacle avoidance device, which has the following beneficial effects:

1. the obstacle avoidance device enables the snow removal mechanism to smoothly cross over road obstacles on the premise of not interrupting snow removal operation, and reduces the damage of snow removal parts, roads and road facilities to the maximum extent. The obstacle crossing mechanism is the most important functional component, while the carriage mechanism, in addition to serving as an aid in crossing obstacles, also has the function of deflecting and lifting the snow removing component, which in some installations may be reflected on the same component.

2. This keep away barrier device, in long-time snow removing operation, the shovel sword can be worn and torn comparatively seriously, influences the snow removing work on road surface, can not satisfy the requirement of snow removing, consequently the shovel sword is fixed with bolted connection for the bracket, and is damaged in the excessive or striking of shovel sword wearing and tearing, can in time change.

Drawings

Fig. 1 is a schematic structural diagram of a lower turnover type obstacle avoidance device of the invention;

fig. 2 is a top view of the lower turnover type obstacle avoidance device of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

fig. 4 is a working schematic diagram of the lower turnover type obstacle avoidance device of the invention.

In the figure: 1. a tractor body; 2. a drive arm; 3. a telescopic cylinder; 4. a lower lifting bar; 5. lifting the lifting rod; 6. a shovel body support; 7. a shovel body seat; 8. a high pressure cylinder; 9. a bracket; 10. a first rocker; 11. a second rocker; 12. a fixed mount; 13. a shovel body inner plate; 14. a shovel blade; 15. a countersunk head bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a lower turnover type obstacle avoidance device comprises a traction vehicle body 1, wherein a driving force arm 2 is fixedly connected to the front end of the traction vehicle body 1, a telescopic cylinder 3 is arranged on the inner wall of the driving force arm 2, a lower lifting rod 4 is movably connected to the front end of the traction vehicle body 1, and the lower lifting rod 4 supports a shovel body to keep a specific distance from the ground. The lower part swing joint of telescoping cylinder 3 has last lifting rod 5, and the left side swing joint of going up lifting rod 5 has shovel body support 6, and the left part welding of shovel body support 6 has shovel body seat 7, and the lower part of shovel body seat 7 is provided with mount 12, and the lower part of shovel body support 6 articulates there is high-pressure cylinder 8, and the inside of high-pressure cylinder 8 is compressed gas. The one end that high pressure cylinder 8 kept away from shovel body support 6 articulates there is bracket 9, and the left end of mount 12 articulates there is first rocker 10, and the right-hand member of mount 12 articulates there is second rocker 11, and first rocker 10, second rocker 11 are articulated mutually with bracket 9, and the contained angle homogeneous phase of first rocker 10, second rocker 11 and horizontal direction equals. The inner side of the shovel body seat 7 is in threaded connection with a shovel body inner plate 13, and the bracket 9 and the fixing frame 12 are hinged through a first rocker 10 and a second rocker 11 to form a parallelogram structure. The left end of bracket 9 has shovel sword 14 through countersunk head bolt 15 threaded connection, and the quantity of shovel sword 14 sets up to four groups, and shovel sword 14 is installed in the both sides of shovel body inner panel 13 through two sets of obstacle-avoiding link gear, and two sets of obstacle-avoiding link gear are parallel to each other. The shovel blade 14 is arranged on the lower edge of the shovel body inner plate 13 through the obstacle avoidance linkage mechanism and is attached to the shovel body inner plate, and the bracket 9, the first rocker 10, the second rocker 11 and the high-pressure cylinder 8 form the obstacle avoidance linkage mechanism.

One end of the high-pressure cylinder 8 is hinged on the shovel body support 6, the other end of the high-pressure cylinder is hinged at the rear end of the bracket 9, and the shovel blade 14 is installed at the front end of the bracket 9. Under the working resistance of normal snow removal of the shovel edge 14, the mechanism can be kept to stably realize normal snow removal and snow accumulation operation, and when meeting obstacles on the road, the obstacles provide resistance for the obstacle avoidance device, so that the overall obstacle avoidance action can be realized to cross the obstacles. The shovel blades 14 are arranged in parallel at intervals in the width direction, so that when meeting local obstacles raised on the road surface, a single group of obstacle avoidance actions can be realized to cross the obstacles.

The obstacle avoidance device realizes obstacle avoidance action as a double-rocker parallelogram mechanism, the lower lifting rod 4 supports the shovel body to keep a specific distance from the ground, the obstacle avoidance action and the reset action do not need to lift the shovel body, the obstacle avoidance sensitivity is effectively improved, and the impact force in the obstacle avoidance process is reduced. When each group of mechanisms are reset independently or integrally, only the resistance of the double-rocker parallel mechanism of the shovel body needs to be overcome, so that the reset resistance is small, the action is flexible and reliable, and the gravity of the shovel body does not need to be overcome.

The working principle is that the shovel surface of the obstacle avoidance device is divided into an upper section and a lower section, in snow removal operation, a shovel blade 14 moves forwards along a road surface, when the bottom of the shovel blade 14 meets an obstacle, the obstacle can apply a horizontal backward force to the shovel blade, gas in a high-pressure cylinder 8 is compressed, a parallelogram structure formed by hinging a bracket 9 and a fixing frame 12 through a first rocker 10 and a second rocker 11 can move backwards and upwards, and when the lower section of the shovel blade 14 deflects to a certain position, the shovel blade 14 starts to climb over the obstacle, so that the purpose of avoiding the obstacle is achieved. Meanwhile, the gas compression can absorb the impact force caused by collision obstacles. The blade 14, which does not touch the obstacle at this time, continues to remove snow, and when the obstacle reaches the height pair, the air compression reaches the maximum. After the obstacle is crossed, the external force is eliminated, and the compressed gas in the high-pressure cylinder 8 can push the obstacle avoidance device, so that the shovel blade 14 restores to the original position. The obstacle avoidance device has compact structure and wide application range, and is more suitable for realizing the segmented obstacle avoidance function.

In conclusion, the obstacle avoidance device enables the snow removal mechanism to smoothly cross over the road obstacle on the premise of not interrupting snow removal operation, and reduces the damage of the snow removal component, the road and the road facility to the maximum extent. The obstacle crossing mechanism is the most important functional component, while the carriage mechanism, in addition to serving as an aid in crossing obstacles, also has the function of deflecting and lifting the snow removing component, which in some installations may be reflected on the same component. In long-time snow removing operation, the shovel edge 14 can be worn seriously, the snow removing work on the road surface is influenced, and the snow removing requirement can not be met, so the shovel edge 14 and the bracket 9 are fixedly connected by bolts, and the shovel edge 14 can be replaced in time when being worn excessively or damaged by impact.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lower convertible obstacle-avoiding device, includes traction vehicle body (1), its characterized in that: the front end of the traction vehicle body (1) is fixedly connected with a driving power arm (2), the inner wall of the driving power arm (2) is provided with a telescopic cylinder (3), the front end of the traction vehicle body (1) is movably connected with a lower lifting rod (4), the lower part of the telescopic cylinder (3) is movably connected with an upper lifting rod (5), the left side of the upper lifting rod (5) is movably connected with a shovel body support (6), the left part of the shovel body support (6) is welded with a shovel body seat (7), the lower part of the shovel body seat (7) is provided with a fixing frame (12), the lower part of the shovel body support (6) is hinged with a high-pressure cylinder (8), one end, far away from the shovel body support (6), of the high-pressure cylinder (8) is hinged with a bracket (9), the left end of the fixing frame (12) is hinged with a first rocker (10), and the right end of the fixing frame, the inner side of the shovel body seat (7) is in threaded connection with a shovel body inner plate (13), and the left end of the bracket (9) is in threaded connection with a shovel blade (14) through a countersunk head bolt (15).

2. The down-turning type obstacle avoidance device according to claim 1, characterized in that: the shovel blade (14) is installed on the lower edge of a shovel body inner plate (13) through an obstacle avoidance linkage mechanism and is attached to the shovel body inner plate, and the bracket (9), the first rocker (10), the second rocker (11) and the high-pressure cylinder (8) form the obstacle avoidance linkage mechanism.

3. The down-turning type obstacle avoidance device according to claim 1, characterized in that: the bracket (9) and the fixed frame (12) are hinged through a first rocker (10) and a second rocker (11) to form a parallelogram structure.

4. The down-turning type obstacle avoidance device according to claim 1, characterized in that: the number of the shovel blades (14) is four, the shovel blades (14) are arranged on two sides of the shovel body inner plate (13) through two groups of obstacle avoidance linkage mechanisms, and the two groups of obstacle avoidance linkage mechanisms are parallel to each other.

5. The down-turning type obstacle avoidance device according to claim 1, characterized in that: the first rocker (10) and the second rocker (11) are hinged with the bracket (9), and included angles between the first rocker (10) and the second rocker (11) and the horizontal direction are equal.

6. The down-turning type obstacle avoidance device according to claim 1, characterized in that: the lower lifting rod (4) supports the shovel body to keep a specific distance from the ground.

7. The down-turning type obstacle avoidance device according to claim 1, characterized in that: the inside of the high-pressure cylinder (8) is compressed gas.