阅读说明：本技术 履带车辆方向控制阀 (Tracked vehicle directional control valve ) 是由 张亮 谷志强 白伟杰 张永谦 李哲 于 2021-02-04 设计创作，主要内容包括：本发明公开的履带车辆方向控制阀,包括主控阀,所述主控阀的下端设置有阀手柄,所述阀手柄的一侧设置有长导向杆,所述长导向杆的上端设置有固定盘,所述固定盘的下端设置有换向板,所述换向板的下端设置有转动轴。本发明所述的履带车辆方向控制阀,通过设置的多连杆控制机构,便于人们控制高速行驶的车辆,避免突然加速和减速所带来的巨大冲击,提高马达的使用寿命,并且有利于保护使用者的人身安全,降低操作难度,提高操作舒适性,通设置的多连杆控制机构,有利于使用者单手控制履带车辆的行驶左右,操作简单,并且带车辆既能应用于开式系统又能应用于闭式系统,有利于人们的使用。(The invention discloses a tracked vehicle direction control valve which comprises a main control valve, wherein a valve handle is arranged at the lower end of the main control valve, a long guide rod is arranged on one side of the valve handle, a fixed disc is arranged at the upper end of the long guide rod, a reversing plate is arranged at the lower end of the fixed disc, and a rotating shaft is arranged at the lower end of the reversing plate. The direction control valve of the tracked vehicle is convenient for people to control the vehicle running at high speed through the arranged multi-connecting-rod control mechanism, avoids huge impact caused by sudden acceleration and deceleration, prolongs the service life of a motor, is beneficial to protecting the personal safety of a user, reduces the operation difficulty, improves the operation comfort, is beneficial to controlling the left and right running of the tracked vehicle by one hand through the arranged multi-connecting-rod control mechanism, is simple to operate, can be applied to an open system and a closed system, and is beneficial to the use of people.)

1. Tracked vehicle directional control valve, its characterized in that: including master control valve (1), the lower extreme of master control valve (1) is provided with valve handle (2), one side of valve handle (2) is provided with long guide bar (3), the upper end of long guide bar (3) is provided with fixed disk (4), the lower extreme of fixed disk (4) is provided with reversing plate (5), the lower extreme of reversing plate (5) is provided with axis of rotation (6), one side of fixed disk (4) is provided with short guide bar (7), the upper end of fixed disk (4) is provided with steering control frame (8), steering control frame (8) both sides internal surface is provided with walking control pole (9).

2. The tracked vehicle directional control valve of claim 1, wherein: a movable screw is arranged between the main control valve (1) and the valve handle (2), and the lower end of the main control valve (1) is movably connected with the outer surface of one end of the valve handle (2) through the movable screw.

3. The tracked vehicle directional control valve of claim 2, wherein: a movable shaft is arranged between the valve handle (2) and the long guide rod (3), and the outer surface of the other end of the valve handle (2) is movably connected with the outer surface of one end of the long guide rod (3) through the movable shaft.

4. The tracked vehicle directional control valve of claim 1, wherein: the outer surface of the other end of the long guide rod (3) and the outer surface of the lower end of the fixed disc (4) are machined through mechanical equipment, and the number of the long guide rods (3) is two.

5. The tracked vehicle directional control valve of claim 4, wherein: the connecting block is arranged between the fixed disc (4) and the reversing plate (5), and the outer surface of the lower end of the fixed disc (4) is detachably connected with the outer surface of the upper end of the reversing plate (5) through the connecting block.

6. The tracked vehicle directional control valve of claim 1, wherein: a rotating groove is formed between the reversing plate (5) and the rotating shaft (6), and the outer surface of the lower end of the reversing plate (5) is movably connected with the outer surface of one end of the rotating shaft (6) through the rotating groove.

7. The tracked vehicle directional control valve of claim 1, wherein: the outer surface of one side of the fixed disc (4) and the outer surfaces of the periphery of the short guide rods (7) are machined through mechanical equipment.

8. The tracked vehicle directional control valve of claim 1, wherein: the inner surfaces of the two sides of the steering control frame (8) and the outer wall of the walking control rod (9) are machined through mechanical equipment.

9. The tracked vehicle directional control valve of claim 1, wherein: the number of the long guide rods (3) is two.

10. The tracked vehicle directional control valve of claim 1, wherein: the outer surface all around of master control valve (1) is provided with a plurality of inflation screws.

Technical Field

The invention relates to the field of directional control mechanisms, in particular to a directional control valve of a tracked vehicle.

Background

In the hydraulic drive crawler-type traveling vehicle at the present stage, an open system controls the traveling speed of the crawler-type traveling vehicle by depending on the opening degree of a valve core, the traveling speed of the crawler-type traveling vehicle is higher when the opening degree of the valve core is larger, the traveling speed of the crawler-type traveling vehicle is lower when the opening degree is smaller, and the vehicle is braked when the opening degree of the valve core is zero. Two-link valves are generally adopted to control a left crawler belt and a right crawler belt, one-link valve controls the left crawler belt, and the other-link valve controls the right crawler belt. When the valve rod is moved forwards, the two valve rods are pushed simultaneously, when the valve rod is moved backwards, the two valve rods are pulled simultaneously, and when the valve rod is turned in place, one handle is pushed, and the other handle is pulled. The pushing or pulling stroke of a valve rod can be reduced during traveling to slow down the speed of the crawler in the required direction to realize turning. Both hands are used for operation, the control difficulty is high, and the vehicle can be stably controlled after the skill is needed.

The closed system controls the running speed of the tracked vehicle by controlling the displacement of the main pump. The larger the pump displacement, the faster the running speed, the smaller the pump displacement, the slower the running speed, and when the displacement is zero, the vehicle is braked, generally adopting pilot or electric proportional control. Closed systems generally employ a dual pump dual motor system, one pump being responsible for supplying oil to the left side motor and the other pump supplying oil to the right side motor. The pilot oil is controlled by a cross handle, the electric proportional control is also controlled by an electric proportional handle, when the handle is pushed forward, the discharge capacity of the left pump and the right pump at the same side is increased, the crawler belt driving motors at the two sides of the crawler belt vehicle supply oil at the same time, and the crawler belt vehicle moves forward. When the handle is pulled backwards, the discharge capacity of the other side of the left pump and the other side of the right pump are increased, the crawler driving motors on the two sides of the tracked vehicle supply oil simultaneously, and the tracked vehicle moves backwards. When the left swing handle or the right swing handle is swung, the displacement of the two pumps on different sides is increased, and the purpose that one crawler moves forwards and the other crawler moves backwards is achieved. During the driving process and when the handle is pushed forwards or pulled backwards, the turning action of the vehicle during the driving process can be realized by matching with the left-swinging or right-swinging handle.

Disclosure of Invention

The invention mainly aims to provide a direction control valve of a tracked vehicle, which can effectively solve the problems in the background art.

In order to achieve the purpose, the invention adopts the technical scheme that:

tracked vehicle directional control valve, including the master control valve, the lower extreme of master control valve is provided with the valve handle, one side of valve handle is provided with long guide bar, the upper end of long guide bar is provided with the fixed disk, the lower extreme of fixed disk is provided with the reversing plate, the lower extreme of reversing plate is provided with the axis of rotation, one side of fixed disk is provided with short guide bar, the upper end of fixed disk is provided with the steering control frame, steering control frame both sides internal surface is provided with the walking control pole.

Preferably, a movable screw is arranged between the main control valve and the valve handle, and the lower end of the main control valve is movably connected with the outer surface of one end of the valve handle through the movable screw.

Preferably, a movable shaft is arranged between the valve handle and the long guide rod, and the outer surface of the other end of the valve handle is movably connected with the outer surface of one end of the long guide rod through the movable shaft.

Preferably, the outer surface of the other end of the long guide rod and the outer surface of the lower end of the fixed disc are machined through mechanical equipment.

Preferably, a connecting block is arranged between the fixed disc and the reversing plate, and the outer surface of the lower end of the fixed disc is detachably connected with the outer surface of the upper end of the reversing plate through the connecting block.

Preferably, a rotating groove is formed between the reversing plate and the rotating shaft, and the outer surface of the lower end of the reversing plate is movably connected with the outer surface of one end of the rotating shaft through the rotating groove.

Preferably, the outer surface of one side of the fixed disc and the outer surfaces of the periphery of the short guide rods are processed by mechanical equipment.

Preferably, the inner surfaces of the two sides of the steering control frame and the outer wall of the walking control rod are machined through mechanical equipment.

Preferably, the number of the long guide rods is two.

Preferably, the peripheral outer surface of the main control valve is provided with a plurality of expansion screws.

Compared with the prior art, the invention has the following beneficial effects: the tracked vehicle directional control valve:

when in use, the walking control rod is pushed forwards, the vehicle realizes the forward operation, the walking control rod is pulled backwards, the vehicle realizes the backward lifting operation, the steering control frame is rotated rightwards, the vehicle realizes the right pivot turning, the steering control frame is rotated leftwards, the vehicle realizes the left pivot turning, the steering control frame is rotated leftwards or rightwards while the walking control rod is pushed forwards or pulled backwards, the turning operation of the vehicle in the driving process can be realized, the driving operation of the vehicle can be realized by one hand, the control difficulty is greatly simplified, the driving stability is greatly improved, the driving control of a closed system can be realized if a main control valve is replaced by two pumps of the closed system, the use of people is facilitated, the multi-connecting-rod control mechanism is arranged, the people can conveniently control the vehicle which runs at high speed, the huge impact caused by sudden acceleration and deceleration is avoided, and the service life of the motor is prolonged, the crawler belt vehicle is beneficial to protecting the personal safety of a user, reducing the operation difficulty and improving the operation comfort, and the multi-connecting-rod control mechanism is beneficial to controlling the left and right running of the crawler belt vehicle by one hand of the user, so that the crawler belt vehicle is simple to operate, can be applied to an open system and a closed system, and is beneficial to the use of people;

whole tracked vehicle directional control valve simple structure, convenient operation, the effect of use is better for traditional mode.

Drawings

FIG. 1 is a schematic view of the overall configuration of a tracked vehicle directional control valve of the present invention;

FIG. 2 is a schematic illustration of the operation of the tracked vehicle directional control valve of the present invention;

FIG. 3 is a forward-toggle view of the travel control lever 9 of FIG. 1 of the tracked vehicle directional control valve of the present invention;

FIG. 4 is a rear dial view of travel control lever 9 of FIG. 1 of the tracked vehicle directional control valve of the present invention;

FIG. 5 is a rear dial view of the steer control block 8 of FIG. 1 of the tracked vehicle directional control valve of the present invention;

fig. 6 is a leftward-shifting view of the steer control block 8 of fig. 1 of the present invention tracked vehicle directional control valve.

In the figure: 1. a master control valve; 2. a valve handle; 3. a long guide bar; 4. fixing the disc; 5. a reversing plate; 6. a rotating shaft; 7. a short guide bar; 8. a steering control frame; 9. a walking control rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, the tracked vehicle directional control valve comprises a main control valve 1, wherein a valve handle 2 is arranged at the lower end of the main control valve 1, a long guide rod 3 is arranged on one side of the valve handle 2, a fixed disk 4 is arranged at the upper end of the long guide rod 3, a reversing plate 5 is arranged at the lower end of the fixed disk 4, a rotating shaft 6 is arranged at the lower end of the reversing plate 5, a short guide rod 7 is arranged on one side of the fixed disk 4, a steering control frame 8 is arranged at the upper end of the fixed disk 4, and walking control rods 9 are arranged on the inner surfaces of.

Wherein, be provided with movable screw between main control valve 1 and the valve handle 2, the lower extreme of main control valve 1 passes through movable screw and valve handle 2's one end surface swing joint, and movable screw is favorable to connecting main control valve 1 and valve handle 2.

Wherein, be provided with the loose axle between valve handle 2 and the long guide bar 3, the other end surface of valve handle 2 passes through the loose axle and the one end surface swing joint of long guide bar 3, and the loose axle is favorable to connecting valve handle 2 and long guide bar 3.

Wherein, the other end surface of long guide bar 3 and the lower extreme surface of fixed disk 4 form through mechanical equipment processing, and long guide bar 3 is convenient for drive valve handle 2 activity.

Wherein, be provided with the connecting block between fixed disk 4 and the switching-over board 5, the lower extreme surface of fixed disk 4 can be dismantled through the upper end surface of connecting block and switching-over board 5 and be connected, and the connecting block is favorable to connecting fixed disk 4 and switching-over board 5.

Wherein, be provided with between reversing plate 5 and the axis of rotation 6 and rotate the groove, the lower extreme surface of reversing plate 5 passes through the groove and the one end surface swing joint of axis of rotation 6, rotates the groove and is favorable to connecting reversing plate 5 and axis of rotation 6.

Wherein, the surface of one side of fixed disk 4 forms through mechanical equipment processing with the surface all around of short guide bar 7, and short guide bar 7 is convenient for connect fixed disk 4.

Wherein, the inner surfaces of the two sides of the steering control frame 8 and the outer wall of the walking control rod 9 are processed by mechanical equipment, and the walking control rod 9 is convenient for operating the tracked vehicle to walk.

Wherein, the number of long guide bars 3 is two groups, and the long guide bars 3 are convenient for connecting a plurality of parts.

Wherein, the surface all around of main control valve 1 is provided with a plurality of inflation screws, and the inflation screw is favorable to connecting the adapting unit on the main control valve 1.

It should be noted that the invention is a tracked vehicle directional control valve, when in use, the walking control rod 9 is pushed forwards, the vehicle realizes the forward operation, the walking control rod 9 is pulled backwards, the vehicle realizes the backward lifting operation, the steering control frame 8 is rotated rightwards, the vehicle realizes the right pivot turning, the steering control frame 8 is rotated leftwards, the vehicle realizes the left pivot turning, the turning operation in the running process of the vehicle can be realized by pushing forwards or pulling backwards the walking control rod 9 and simultaneously rotating the steering control frame 8 leftwards or rightwards, the running operation of the vehicle can be realized by one hand, the control difficulty is greatly simplified, the running stability is greatly improved, if the main control valve 1 is replaced by two pumps of a closed system, the running control of the closed system can be realized, the use of people is facilitated, and the vehicle running at high speed can be conveniently controlled by the arranged multi-link control mechanism, avoid the huge impact that brings suddenly with the speed reduction, improve the life of motor to be favorable to protecting user's personal safety, reduce the operation degree of difficulty, improve the operation travelling comfort, lead to the many connecting rods control mechanism who sets up, be favorable to about going of user's one-hand control tracked vehicle, easy operation, and take the vehicle can be applied to open system and can be applied to closed system again.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.