Supporting mechanism and operation vehicle with same
阅读说明：本技术 一种支撑机构及带有支撑机构的作业车 (Supporting mechanism and operation vehicle with same ) 是由 张虎 刘龙兵 徐驰 宋院归 于 2019-11-19 设计创作，主要内容包括：本发明涉及运输装卸技术领域,特别涉及一种支撑机构,以及一种带有支撑机构的作业车,该支撑机构包括有连杆机构,即起竖伸缩件的一端与车辆的上装相铰接,另一端与连接杆的一端相铰接,连接杆的另一端与支腿的杆身或支撑端连接,支腿上与支撑端相对的一端与车架相铰接。工作时,起竖伸缩件进行伸缩,起竖伸缩件与连接杆的铰接端将在条形限位结构中运动,带动支腿摆转,通过控制其在条形限位结构的运动距离控制支腿的摆转角度,摆转完毕后起竖伸缩件带动上装进行旋转倾倒动作。用这种结构替代独立的支腿摆转系统和独立的上装起竖系统,简化了控制及操作,支腿摆转和上装起竖过程连贯,节省操作转换时间,解决了传统支撑机构控制及操纵繁琐的问题。(The invention relates to the technical field of transportation loading and unloading, in particular to a supporting mechanism and an operation vehicle with the supporting mechanism. During operation, the vertical telescopic piece stretches out and draws back, the vertical telescopic piece and the hinged end of the connecting rod move in the bar-shaped limiting structure, the supporting leg is driven to swing and rotate, the swing and rotation angle of the supporting leg is controlled by controlling the movement distance of the vertical telescopic piece in the bar-shaped limiting structure, and the vertical telescopic piece drives the upper part to rotate and topple over after the swing and rotation are finished. The structure replaces an independent supporting leg swinging system and an independent loading erecting system, so that the control and operation are simplified, the supporting leg swinging and erecting processes are coherent, the operation conversion time is saved, and the problem that the traditional supporting mechanism is complicated to control and operate is solved.)
1. A supporting mechanism is characterized by comprising a vertical telescopic piece (501), a connecting rod (502) and a supporting leg (503), wherein one end of the vertical telescopic piece (501) is hinged with an upper garment (4) of a vehicle, the other end of the vertical telescopic piece is hinged with one end of the connecting rod (502), the other end of the connecting rod (502) is connected with a rod body or a supporting end of the supporting leg (503), one end, opposite to the supporting end, of the supporting leg (503) is hinged with a frame (3), and the frame (3) is hinged with the upper garment (4) at the tail parts of the frame and the upper garment;
the supporting mechanism further comprises a strip-shaped limiting structure (504), and the swing angle of the supporting leg (503) is controlled by limiting the movement range of a hinge (505) connecting the vertical telescopic piece (501) and the connecting rod (502) through the strip-shaped limiting structure (504).
2. The support mechanism according to claim 1, wherein the leg (503) comprises a leg (503) link portion, the start of the limit of the bar-shaped limit structure (504) is arranged before the leg (503) link portion and the intersection point (603) of the overlapping line (601) of the connecting rod (502) and the center line (602) of the bar-shaped limit structure, and the end of the limit of the bar-shaped limit structure (504) is arranged after the intersection point (603) of the overlapping line (601) of the leg (503) link portion and the connecting rod (502) and the center line (602) of the bar-shaped limit structure.
3. The support mechanism of claim 2, wherein the bar-shaped limit structures (504) are linear, arcuate, or hybrid bar-shaped limit structures.
4. The support mechanism of claim 3, wherein the strap-shaped retention feature (504) is a strap-shaped retention hole or a strap-shaped retention slot.
5. The support mechanism as claimed in claim 4, wherein the hinge member (505) comprises a pin extending through the elongated hole.
6. The supporting mechanism as claimed in any one of claims 1 to 5, wherein the bar-shaped limiting structure is a separate mechanism fixedly connected with the frame (3) and provided with the bar-shaped limiting structure (504) or is formed by arranging the bar-shaped limiting structure (504) on the frame (3).
7. The support mechanism of claim 6, wherein the riser (501) is a linear reciprocating hydraulic ram or a linear reciprocating cylinder.
8. The support mechanism of claim 7, wherein the leg (503) comprises a linear reciprocating hydraulic ram.
9. The supporting mechanism as claimed in claim 6, characterized in that the hinge point of the vertical telescopic member (501) and the upper garment (4) is arranged in the middle of the upper garment (4), the hinge point of the supporting leg (503) and the frame (3) is arranged at the tail of the frame (3), and the strip-shaped limiting structure is arranged at the tail of the frame (3).
10. Work vehicle with a support mechanism, characterized in that a support mechanism according to any of claims 1-9 is applied, a plurality of pairs of wheels (7) being arranged on the frame (3), and that said legs (503) are arranged behind the last pair of said wheels (7).
Technical Field
The invention relates to the technical field of transportation loading and unloading, in particular to a supporting mechanism and an operation vehicle with the supporting mechanism.
Background
The existing supporting mechanism of the transport vehicle comprises two independent systems of vehicle body support and top loading and erecting, and when dumping the load, the actions of dumping the load need to be respectively operated.
The independent upper erection device is used for dumping loaded objects, the upper hydraulic oil cylinder 1 is used for connecting the
These two systems, although ensuring a smooth pouring of the load, have a number of problems:
(1) the control and the operation are complicated, the system is divided into two independent systems, an operator needs to separately operate, and whether the vehicle body support is completed or not needs to be checked before the operation top loading 4 is erected.
(2) The oil cylinder is easy to break down when being stressed for a long time, the two oil cylinders of the supporting leg swing hydraulic oil cylinder 201 and the upper hydraulic oil cylinder 1 are adopted to finish dumping and overturn prevention, and compared with the method that one telescopic piece is used for finishing dumping, the failure occurrence rate is increased.
(3) After the support legs are used for swinging the hydraulic oil cylinder 201, when the oil cylinder leaks inwards or has other faults, the support legs 203 are soft, and the vehicle body can overturn due to the phenomenon when the vehicle body topples over.
Disclosure of Invention
The invention aims to overcome the defects of complex system and complicated operation caused by two independent systems adopted by a vehicle body supporting device and an upper erection device in the prior art, and provides a supporting mechanism for completing swinging and rotation of supporting legs and upper erection by using the same telescopic part.
In order to achieve the above purpose, the invention provides the following technical scheme:
a supporting mechanism comprises a vertical telescopic piece, a connecting rod and a supporting leg, wherein one end of the vertical telescopic piece is hinged with the upper part of a vehicle, the other end of the vertical telescopic piece is hinged with one end of the connecting rod, the other end of the connecting rod is connected with a rod body or a supporting end of the supporting leg, one end of the supporting leg, which is opposite to the supporting end, is hinged with a frame, and the frame is hinged with the tail parts of the frame and the upper part;
the supporting mechanism further comprises a bar-shaped limiting structure, and the movement range of a hinged part for connecting the vertical telescopic piece and the connecting rod is limited by the bar-shaped limiting structure so as to control the swinging angle of the supporting leg.
A connecting rod mechanism is formed by arranging a vertical telescopic piece, a connecting rod, a supporting leg and a frame, namely, one end of the vertical telescopic piece is hinged with the upper part of the vehicle, the other end of the vertical telescopic piece is hinged with one end of the connecting rod, the other end of the connecting rod is connected with a rod body or a supporting end of the supporting leg, one end of the supporting leg, which is opposite to the supporting end, is hinged with the frame, and the frame is hinged with the tail parts of the upper part and the lower part; and limiting the movement range of a hinge part connecting the erecting telescopic part and the connecting rod through the strip-shaped limiting structure so as to control the swinging angle of the supporting leg. The working action process comprises two parts, namely supporting leg swinging and upper mounting and vertical part, wherein the first part is used for stretching and retracting the vertical telescopic part, and the upper mounting has certain weight, so that the acting force generated by stretching and retracting of the vertical telescopic part can be reacted with the connecting rod, therefore, an articulated element for connecting the vertical telescopic part and the connecting rod can move along the strip-shaped limiting structure; the second part, because it stretches out and draws back to erect the extensible member, the articulated elements can't move in bar limit structure, rises promptly to erect the extensible member and will use bar limit structure terminal or dead point position to carry out rotary motion as the hinge point, rises to erect the extensible member and will drive the facial make-up and rotate, carries out the facial make-up promptly and erects and empty the action. The connecting rod structure capable of completing the swinging and the erecting of the supporting legs and only needing one telescopic piece replaces a traditional independent system for swinging and rotating the supporting legs and an independent system for dumping the hydraulic oil cylinder, so that the control and the operation are simplified, the two processes of swinging and rotating the supporting legs and erecting the supporting legs are coherent, the operation conversion time is saved, and the problem that the control and the operation of the traditional supporting mechanism are complicated is solved;
meanwhile, the link mechanism reduces the support leg swing hydraulic oil cylinder, reduces valves and pipelines related to the support leg swing hydraulic oil cylinder, the telescopic part is easy to break down when being stressed for a long time, when the support leg swing hydraulic oil cylinder has internal leakage or other faults, the support leg is caused to be soft, and the phenomenon can possibly lead the vehicle body to overturn when the vehicle body topples over.
The dead-center position is the position in the linkage that results when the follower and the link are collinear.
Preferably, the supporting leg comprises a supporting leg connecting rod part, a limiting starting point of the strip-shaped limiting structure is arranged before a two-line intersection point of a central line of the strip-shaped limiting structure and an overlapped line of the supporting leg connecting rod part and the connecting rod, and a limiting end point of the strip-shaped limiting structure is arranged behind the two-line intersection point of the central line of the strip-shaped limiting structure and the overlapped line of the supporting leg connecting rod part and the connecting rod.
The connecting rod part of the supporting leg is a two-point connecting part of a hinge point of the supporting leg and the connecting rod in the supporting leg and the hinge point of the supporting leg on the frame.
The motion component participating in the action of the first part actually comprises a vertical expansion piece, a connecting rod and a supporting leg connecting rod part, namely, a three-rod mechanism is actually formed, the mechanism has a dead point, because the vertical expansion piece performs the expansion motion, the connecting rod is equivalent to the connecting rod in the connecting rod mechanism, the supporting leg connecting rod part is equivalent to a driven piece, when the two motion components of the connecting rod and the driven piece are positioned on the same straight line, the central lines of the connecting rod and the driven piece are overlapped lines, namely when two hinge points of the connecting rod and a hinge point of the supporting leg are positioned on the same straight line, the position of the connecting rod in the strip-shaped limiting structure is the dead point position, when the motion is reached to the dead point position, the hinge piece between the vertical expansion piece and the connecting rod can not be continuously moved no matter how large the driving force is, the connecting rod and the supporting leg can not move any more, the risk of 'soft legs' caused by the fault of erecting the telescopic piece is avoided, and the accident of tipping of the equipment is avoided;
the limiting starting point of the bar-shaped limiting structure is arranged in front of the intersection point of the two lines of the central line of the bar-shaped limiting structure and the overlapping line of the connecting rod and the connecting rod of the supporting leg, a space can be provided for the rotation of the supporting leg before the dead point, the limiting end point of the bar-shaped limiting structure is arranged behind the intersection point of the central line of the bar-shaped limiting structure and the overlapping line of the supporting leg and the connecting rod, and a sufficient distance can be provided for enabling the articulated piece to move to the dead point position to.
A soft leg, i.e. a leg that lacks constraints that limit its movement, is able to perform movements.
Preferably, the strip-shaped limit structure is a linear type strip-shaped limit structure, an arc type strip-shaped limit structure or a mixed type strip-shaped limit structure.
The mixed type strip-shaped limiting structure is the combination of a linear type strip-shaped limiting structure and an arc type strip-shaped limiting structure, and has a linear shape and an arc shape.
Preferably, the strip-shaped limiting structure is a strip-shaped limiting hole or a strip-shaped limiting groove.
Preferably, the hinge member includes a pin shaft, and the pin shaft penetrates through the strip-shaped limiting hole.
The structure through hole or groove combines together with the round pin axle, realizes the spacing to the articulated elements.
Preferably, the strip-shaped limiting structure is an independent mechanism which is fixedly connected with the frame and is provided with the strip-shaped limiting structure, or the strip-shaped limiting structure is arranged on the frame.
Preferably, the vertical telescopic part is a linear reciprocating hydraulic oil cylinder or a linear reciprocating air cylinder.
Preferably, the legs comprise linear reciprocating hydraulic rams.
After the action of the first part is finished, the supporting legs can be stretched and contracted to be in contact with the ground, so that supporting of the supporting legs is finished.
Preferably, the hinge point of the vertical telescopic part and the upper garment is arranged in the middle of the upper garment, the hinge point of the support leg and the frame is arranged at the tail of the frame, and the strip-shaped limiting structure is arranged at the tail of the frame.
The utility model provides an operation car with supporting mechanism, uses supporting mechanism, is provided with a plurality of pairs of wheels on the frame, the landing leg sets up behind last pair of the wheel.
Because the upper mounting is hinged with the frame, one of the main stress points of the vehicle is the hinged point, the vehicle can be better supported when the vehicle topples after the support legs are provided with the wheels, the supporting mechanism can be applied to various operating vehicles loaded with objects to be toppled, and the operating vehicle with the supporting mechanism can improve the unloading efficiency.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention forms a link mechanism by arranging a vertical telescopic piece, a connecting rod, a supporting leg and a frame, namely, one end of the vertical telescopic piece is hinged with the upper part of a vehicle, the other end of the vertical telescopic piece is hinged with one end of the connecting rod, the other end of the connecting rod is connected with a rod body or a supporting end of the supporting leg, one end of the supporting leg opposite to the supporting end is hinged with the frame, and the frame is hinged with the tail parts of the upper part and the lower part; and limiting the movement range of a hinge part connecting the erecting telescopic part and the connecting rod through the strip-shaped limiting structure so as to control the swinging angle of the supporting leg. The working action process comprises two parts, namely supporting leg swinging and upper mounting and vertical part, wherein the first part is used for stretching and retracting the vertical telescopic part, and the upper mounting has certain weight, so that the acting force generated by stretching and retracting of the vertical telescopic part can be reacted with the connecting rod, therefore, an articulated element for connecting the vertical telescopic part and the connecting rod can move along the strip-shaped limiting structure; the second part, because it stretches out and draws back to erect the extensible member, the articulated elements can't move in bar limit structure, rises promptly to erect the extensible member and will use bar limit structure terminal or dead point position to carry out rotary motion as the hinge point, rises to erect the extensible member and will drive the facial make-up and rotate, carries out the facial make-up promptly and erects and empty the action. The connecting rod structure capable of completing leg swinging and erection and provided with the vertical connecting rod only needs one telescopic piece to replace a traditional independent leg swinging hydraulic oil cylinder swinging system and an independent upper hydraulic oil cylinder dumping system, so that control and operation are simplified, two processes of leg swinging and erection are coherent, operation conversion time is saved, and the problem that a traditional supporting mechanism is complex to control and operate is solved.
2. The link mechanism reduces the swing hydraulic oil cylinder of the supporting leg, reduces valves and pipelines related to the swing hydraulic oil cylinder of the supporting leg, is easy to break down when the telescopic piece is stressed for a long time, causes the phenomenon of looseness of the supporting leg when the swing hydraulic oil cylinder of the supporting leg has internal leakage or other faults, and can possibly lead the vehicle body to overturn when the support leg falls down.
3. The motion component participating in the action of the first part actually comprises a vertical expansion piece, a connecting rod and a supporting leg connecting rod part, namely, a three-rod mechanism is actually formed, the mechanism has a dead point, because the vertical expansion piece performs the expansion motion, the connecting rod is equivalent to the connecting rod in the connecting rod mechanism, the supporting leg connecting rod part is equivalent to a driven piece, when the two motion components of the connecting rod and the driven piece are positioned on the same straight line, the central lines of the connecting rod and the driven piece are overlapped lines, namely when two hinge points of the connecting rod and a hinge point of the supporting leg are positioned on the same straight line, the position of the connecting rod in the strip-shaped limiting structure is the dead point position, when the motion is reached to the dead point position, the hinge piece between the vertical expansion piece and the connecting rod can not be continuously moved no matter how large the driving force is, the connecting rod and the supporting leg can not move any more, the risk of 'soft legs' caused by the fault of erecting the telescopic piece is avoided, and the accident of tipping of the equipment is avoided;
the limiting starting point of the bar-shaped limiting structure is arranged in front of the intersection point of the two lines of the central line of the bar-shaped limiting structure and the overlapping line of the connecting rod and the connecting rod of the supporting leg, a space can be provided for the rotation of the supporting leg before the dead point, the limiting end point of the bar-shaped limiting structure is arranged behind the intersection point of the central line of the bar-shaped limiting structure and the overlapping line of the supporting leg and the connecting rod, and a sufficient distance can be provided for enabling the articulated piece to move to the dead point position to.
4. The structure through hole or groove combines together with the round pin axle, realizes the spacing to the articulated elements.
5. After the action of the first part is finished, the supporting legs can be stretched and contracted to be in contact with the ground, so that supporting of the supporting legs is finished.
6. Because the upper mounting is hinged with the frame, one of the main stress points of the vehicle is the hinged point, the vehicle can be better supported when the vehicle topples after the support legs are provided with the wheels, the supporting mechanism can be applied to various operating vehicles loaded with objects to be toppled, and the operating vehicle with the supporting mechanism can improve the unloading efficiency.
Drawings
FIG. 1 is a structural diagram of a support leg of a conventional support mechanism in an initial state of swing;
FIG. 2 is a structural diagram of a supporting leg of a conventional supporting mechanism in a state of complete swing;
FIG. 3 is a structural diagram illustrating an initial state of the leg swing of the support mechanism of the present invention;
FIG. 4 is a structural schematic diagram of the support mechanism of the present invention in a state of complete swing of the support leg;
FIG. 5 is a partial enlarged view of area A in FIG. 4;
FIG. 6 is a dead center position view of the support mechanism of the present invention;
FIG. 7 is a schematic structural view of a straight-sided strip-shaped stopper structure;
FIG. 8 is a schematic structural diagram of a strip-shaped limiting structure with arc edges;
fig. 9 is a schematic structural diagram of a strip-shaped limiting structure with straight edges and arc edges.
The labels in the figure are: 1-upper hydraulic oil cylinder, 2-vehicle body supporting device, 201-supporting leg swinging hydraulic oil cylinder, 202-intermediate connecting rod, 203-supporting leg, 3-vehicle frame, 4-upper hydraulic oil cylinder, 501-vertical telescopic part, 502-connecting rod, 503-supporting leg, 504-bar-shaped limiting structure, 505-hinged part, 601-overlapping line, 602-bar-shaped limiting structure central line, 603-intersection point, 7-wheel and 8-cab.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
- 上一篇：一种医用注射器针头装配设备
- 下一篇：一种电动车瘪胎辅助行走装置