Rolling brush lifting device

Abstract

The utility model discloses a rolling brush lifting device, which relates to the technical field of snow removing machinery and comprises a fixed connecting plate, a front connecting plate, an upper swinging connecting rod, a lower swinging connecting rod, a driving oil cylinder and a connecting pin shaft, one end of the upper swing connecting rod and one end of the lower swing connecting rod are hinged to the fixed connecting plate through connecting pin shafts, and the other end of the upper swing connecting rod and the other end of the lower swing connecting rod are hinged to the front connecting plate through connecting pin shafts. One end of the driving oil cylinder is hinged to the fixed connecting plate through a connecting pin shaft, and the other end of the driving oil cylinder is hinged to the lower swing connecting rod. The problems that according to an existing snow sweeper rolling brush lifting mode, the lifting height of a lifting structure is small, the gravity center position is too front, the approaching angle is too small and head falling is prone to occurring when the lifting structure is hung on a vehicle for driving, the overall length of the lifting structure is too long, and trafficability is poor when the lifting structure is hung on the vehicle for driving are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of snow removal machinery manufacturing, in particular to a device for controlling the lifting and lowering of a roller brush of a snow removal vehicle. Background Art

[0002] Roller-brush snowplows, or snowplows, are essential specialized vehicles for winter road clearing in northern China, preventing snow accumulation, and conducting snowstorm rescue operations. Currently, most existing roller-brush snowplows and snowplows utilize either vertical or triangular lift systems. The vertical lift system has a low lift height and a center of gravity positioned too far forward, while the triangular lift system is too long. The vertical lift system has a low approach angle when mounted on a vehicle and can easily cause a vehicle to fall. The triangular lift system is too long, resulting in poor maneuverability when mounted on a vehicle. Utility Model Content

[0003] The technical problem to be solved by the present utility model is to provide a roller brush lifting device, which can solve the problems of the existing roller brush lifting method for snowplows, such as the lifting height of the lifting structure is small and the center of gravity is too far forward, the approach angle is too small and the head is easy to fall when hung on the vehicle for driving, and the overall length of the lifting structure is too long, resulting in poor passability when hung on the vehicle for driving.

[0004] In order to solve the above problems, the technical solution of the utility model is: this roller brush lifting device includes a fixed connecting plate for connecting to the snowplow body, a front connecting plate for connecting to the snowplow roller brush, an upper swing link, a lower swing link and a driving cylinder, and a connecting pin for connecting each link or connecting plate.

[0005] One end of the upper swing link and the lower swing link is hinged to the fixed connecting plate through a connecting pin, and the other end of the upper swing link and the lower swing link is hinged to the front connecting plate through a connecting pin, forming a movable four-link structure lifting mechanism; one end of the driving cylinder is hinged to the fixed connecting plate through a connecting pin, and the other end of the driving cylinder is hinged to an end of the lower swing link close to the front connecting plate.

[0006] In the above technical solution, a more specific solution is that the snowplow body to which the fixed connecting plate is connected is welded by multiple steel components.

[0007] Furthermore: the snowplow roller brush to be connected to the front connecting plate is welded together with multiple steel components.

[0008] Furthermore: the upper swing link corresponding fixed connecting plate and the front connecting plate are welded together by multiple steel components.

[0009] Furthermore: the fixed connecting plate corresponding to the lower swing link and the front connecting plate are welded together by multiple steel components.

[0010] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0011] The utility model has the advantages of short overall size, high lifting height and reasonable center of gravity, specifically:

[0012] 1. Shorten the overall length during use: Since the utility model adopts a four-link structure, when it is lowered to a suitable position, the length of the link structure can be effectively shortened, thereby shortening the overall length and having better passability.

[0013] 2. Good transfer and uphill and downhill effects in non-operating state: Since the utility model adopts a four-link structure, it can be quickly lifted to the appropriate position, which can effectively shorten the length of the connecting rod structure. At the same time, the center of gravity is moved backward to avoid the top-heavy head falling phenomenon, which has a better transfer effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model when it is lowered to the working position;

[0015] Figure 2 It is a schematic diagram of the utility model when it is extended to its longest position;

[0016] Figure 3 It is a schematic diagram of the utility model when it is lifted to the transfer position.

[0017] Figures 1 to 3 (a) in the figure is a front view and (b) is a side view.

[0018] The numbers in the figure represent:

[0019] 1. Fixed connecting plate; 2. Upper swing connecting rod; 3. Front connecting plate; 4. Lower swing connecting rod; 5. Driving cylinder; 6. Connecting pin. DETAILED DESCRIPTION

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 、 Figure 2 and Figure 3 The roller brush lifting device includes a fixed connecting plate 1 for connecting to the snowplow body, a front connecting plate 3 for connecting to the roller brush of the snowplow, an upper swing link 2, a lower swing link 4 and a driving cylinder 5, and a connecting pin 6 for connecting each link or connecting plate.

[0022] One end of the upper and lower swing links 2 and 4 is hinged to the fixed connecting plate 1 via a connecting pin 6. The other ends of the upper and lower swing links 2 and 4 are hinged to the front connecting plate 3 via a connecting pin 6, forming a movable four-bar lifting mechanism. One end of the drive cylinder 5 is hinged to the fixed connecting plate 1 via a connecting pin 6, and the other end of the drive cylinder 5 is hinged to the end of the lower swing link 4 closest to the front connecting plate 3. In this embodiment, the cylinder body of the drive cylinder 5 is hinged to the fixed connecting plate 1, and the piston rod of the drive cylinder 5 is hinged to the lower swing link 4. The drive cylinder 5 is a double-acting cylinder.

[0023] The snowplow body to be connected to the fixed connecting plate 1 is formed by welding a plurality of steel components.

[0024] The front connecting plate 3 corresponding to the snowplow roller brush to be connected is formed by welding multiple steel components.

[0025] The upper swing link 2 and the lower swing link 4 are formed by welding a plurality of steel components corresponding to the fixed connecting plate 1 and the front connecting plate 3.

[0026] When the driving cylinder does not extend or retract, Figure 1 As shown, the lifting device is in the roller brush working state position.

[0027] When the drive cylinder extends, Figure 2 As shown, the entire lifting device bypasses the longest point and descends to a suitable position, at which time the entire mechanism is shortened to a suitable position.

[0028] When the drive cylinder is shortened, Figure 3 As shown, the entire lifting device bypasses the longest point and rises to the appropriate position. At this time, the entire mechanism is lifted to the appropriate height and the center of gravity moves backward.

[0029] The utility model solves the problems of the existing snow removal vehicle's roller brush being too long in overall length and having an unreasonable center of gravity position.

Claims

1. A roller brush lifting device, characterized in that: It includes a fixed connecting plate (1), a front connecting plate (3), an upper swing connecting rod (2), a lower swing connecting rod (4), a driving cylinder (5) and a connecting pin (6); One end of the upper swing link (2) and the lower swing link (4) is hinged to the fixed connection plate (1) via a connecting pin (6), and the other end of the upper swing link (2) and the lower swing link (4) is hinged to the front connection plate (3) via a connecting pin (6); one end of the driving cylinder (5) is hinged to the fixed connection plate (1) via a connecting pin (6), and the other end of the driving cylinder (5) is hinged to the lower swing link (4).

2. A roller brush lifting device according to claim 1, characterized in that: The fixed connection plate (1) is formed by welding steel components.

3. A roller brush lifting device according to claim 1 or 2, characterized in that: The front connecting plate (3) is formed by welding steel components.

4. A roller brush lifting device according to claim 3, characterized in that: The upper swing link (2) is formed by welding steel components.

5. A roller brush lifting device according to claim 4, characterized in that: The lower swing link (4) is formed by welding steel components.

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