CN110843639A - Erecting mechanism and operation vehicle with erecting mechanism - Google Patents
Erecting mechanism and operation vehicle with erecting mechanism Download PDFInfo
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- CN110843639A CN110843639A CN201911131511.6A CN201911131511A CN110843639A CN 110843639 A CN110843639 A CN 110843639A CN 201911131511 A CN201911131511 A CN 201911131511A CN 110843639 A CN110843639 A CN 110843639A
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- erecting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
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- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention relates to the technical field of transportation, loading and unloading, in particular to a erecting mechanism and an operation vehicle with the erecting 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 erection system, so that the control and operation are simplified, the supporting leg swinging and erection processes are coherent, the operation conversion time is saved, and the problem that the traditional erection mechanism is complicated to control and operate is solved.
Description
Technical Field
The invention relates to the technical field of transportation, loading and unloading, in particular to a erecting mechanism and an operation vehicle with the erecting mechanism.
Background
The existing erecting mechanism of the transport vehicle comprises two independent systems of vehicle body support and loading erection, and when the load is dumped, the action of dumping the load needs to be respectively operated and completed.
The independent upper erection device is used for dumping loaded objects, the upper hydraulic oil cylinder 1 is used for connecting the frame 3 with the upper installation 4, and when the upper hydraulic oil cylinder 1 stretches, the upper installation 4 rotates by taking the frame 3 as a fulcrum, so that the loaded objects can be dumped. Independent automobile body strutting arrangement 2 is used for supporting the vehicle and prevents when empting that the vehicle topples, uses landing leg pendulum to change hydraulic cylinder 201 and connects supporting leg 203, still is provided with intermediate linkage 202 between the two, and it is rotatory to drive intermediate linkage 202 through landing leg pendulum changes hydraulic cylinder 201's flexible, and intermediate linkage 202 drives supporting leg 203 of fixed connection on intermediate linkage 202 and rotates, and the supporting leg 203 is rotatory to can carry out the vehicle support when perpendicular with the horizontal plane.
These two systems, although ensuring a smooth pouring of the load, have a number of problems:
(1) the car body supporting device can not realize mechanical self-locking, after the supporting legs are used for swinging the hydraulic oil cylinder 201, when the oil cylinder leaks inwards, outwards or has other faults, the supporting legs 203 are caused to be soft, and the car body can topple due to the phenomenon when toppling.
(2) 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.
(3) 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.
Disclosure of Invention
The invention aims to solve the problems that a vehicle body supporting device and an upper erection device in the prior art are complicated in system operation and cannot realize mechanical self-locking because two independent systems are adopted, and provides an erection mechanism for completing swinging and erection of a supporting leg and upper erection by using the same telescopic part.
In order to achieve the above purpose, the invention provides the following technical scheme:
a erecting mechanism comprises an erecting telescopic piece, a connecting rod and a supporting leg, wherein one end of the erecting telescopic piece is hinged with the upper part of a vehicle, the other end of the erecting 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 erecting mechanism further comprises a strip-shaped limiting structure, and the movement range of a hinge piece for connecting the erecting telescopic piece and the connecting rod is limited through the strip-shaped limiting structure so as to control the swinging angle of the supporting leg;
the articulated elements with it erects fixed between the extensible member, bar limit structure's spacing terminal point upwards is connected with circular arc limit structure, the articulated elements can be followed bar limit structure gets into circular arc limit structure.
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 three parts, namely support leg swinging, self-locking and erection by erection, wherein the first part is used for extending and retracting the erection telescopic part, the erection telescopic part has certain weight, and acting force generated by the extension and retraction of the erection telescopic part can react on the connecting rod, so that an articulated element connecting the erection telescopic part and the connecting rod can move along the strip-shaped limiting structure; in the second part, because the vertical telescopic part is telescopic, the articulated elements enter the arc limiting structure along the strip limiting structure upwards, so that the articulated elements bear the weight of the vehicle frame no matter whether the vertical telescopic part is unloaded or not, and because the articulated elements and the vertical telescopic part are fixed, the articulated elements cannot slide downwards in the strip limiting structure and the arc limiting structure, mechanical self-locking is formed, and the phenomenon that the supporting legs are soft cannot occur; and in the third part, the vertical telescopic piece continues to stretch, the hinged piece is locked in the circular arc limiting structure, namely, the vertical telescopic piece takes the circular arc limiting structure as a hinged point to perform rotary motion, and the vertical telescopic piece drives the upper part to rotate, namely, the upper part is erected and toppled. The connecting rod structure capable of completing leg swing and erection only by one telescopic piece replaces a traditional independent leg swing hydraulic oil cylinder swinging system and an independent erection hydraulic oil cylinder dumping system, so that the control and operation are simplified, the two processes of leg swing and erection are coherent, the operation conversion time is saved, and the problem of complicated control and operation of the traditional erection mechanism 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 cause the overturn of the vehicle body when the vehicle body is toppled over, so the structure also reduces the fault occurrence rate of the erecting mechanism and eliminates the possibility of vehicle overturn caused by the support leg swing hydraulic oil cylinder;
and the mechanism can form mechanical self-locking, the turning of the erecting load when the erecting load is toppled does not cause the displacement of the hinged part, and the possibility of vehicle toppling caused by internal leakage or other faults of the traditional erecting mechanism in the upper hydraulic oil cylinder is solved.
A soft leg, i.e. a leg that lacks constraints that limit its movement, is able to perform movements.
Preferably, the strip-shaped limiting structure is a strip-shaped limiting hole, the arc-shaped limiting structure is an arc-shaped through hole with an arc surface at the top, and the strip-shaped limiting hole is smoothly connected with the arc-shaped through hole.
Through the bar-shaped limiting hole and the arc-shaped through hole which are smoothly connected, the articulated elements can be enabled to follow the bar-shaped limiting structure to enter the arc-shaped limiting structure, and the articulated elements such as the pin shaft and the like are convenient to connect.
Preferably, the vertical distance between the vertex of the top cambered surface and the central line of the strip-shaped limiting hole is smaller than the hole diameter of the strip-shaped limiting hole.
Because the summit of top cambered surface with the perpendicular distance of the central line of the spacing hole of bar is less than the hole diameter of the spacing hole of bar, consequently, the summit of top cambered surface is less than half the hole diameter of the spacing hole of bar apart from the perpendicular distance of the top surface that corresponds in the spacing hole of bar, makes things convenient for the articulated elements to remove from convex through-hole to the spacing hole of bar in, and the landing leg of being convenient for rotates.
Preferably, the hinge member includes a pin shaft, and the pin shaft penetrates through the strip-shaped limiting hole.
The limiting of the articulated elements is realized by combining the hole structure with the pin shaft.
Preferably, the erecting telescopic part comprises a shaft hole matched with the pin shaft, and the shaft hole is matched with the pin shaft to realize the hinging of the erecting telescopic part and the connecting rod.
Preferably, the pin shaft is fixedly connected with the shaft hole through a key.
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 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 vertical telescopic part is a linear reciprocating hydraulic oil cylinder or a linear reciprocating air cylinder.
The working vehicle with the erecting mechanism is applied, a plurality of pairs of wheels are arranged on a vehicle frame, and the supporting legs are arranged behind the last pair of wheels.
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 supporting legs are provided with the wheels, the erecting mechanism can be applied to various operating vehicles loaded with objects to be toppled, and the operating vehicle with the erecting 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 three parts, namely support leg swinging, self-locking and erection by erection, wherein the first part is used for extending and retracting the erection telescopic part, the erection telescopic part has certain weight, and acting force generated by the extension and retraction of the erection telescopic part can react on the connecting rod, so that an articulated element connecting the erection telescopic part and the connecting rod can move along the strip-shaped limiting structure; in the second part, because the vertical telescopic part is telescopic, the articulated elements enter the arc limiting structure along the strip limiting structure upwards, so that the articulated elements bear the weight of the vehicle frame no matter whether the vertical telescopic part is unloaded or not, and because the articulated elements and the vertical telescopic part are fixed, the articulated elements cannot slide downwards in the strip limiting structure and the arc limiting structure, mechanical self-locking is formed, and the phenomenon that the supporting legs are soft cannot occur; and in the third part, the vertical telescopic piece continues to stretch, the hinged piece is locked in the circular arc limiting structure, namely, the vertical telescopic piece takes the circular arc limiting structure as a hinged point to perform rotary motion, and the vertical telescopic piece drives the upper part to rotate, namely, the upper part is erected and toppled. The connecting rod structure capable of completing leg swing and erection only by one telescopic piece replaces a traditional independent leg swing hydraulic oil cylinder swinging system and an independent erection hydraulic oil cylinder dumping system, so that control and operation are simplified, two processes of leg swing and erection are coherent, operation conversion time is saved, and the problem that a traditional erection 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 vehicle body topples, so the structure also reduces the fault occurrence rate of the erecting mechanism, and eliminates the possibility of vehicle toppling caused by the swing hydraulic oil cylinder of the supporting leg.
3. The mechanism can form mechanical self-locking, the turning of the erecting load when the erecting load is toppled does not cause the displacement of the hinged part, and the possibility that the vehicle topples due to internal leakage or other faults of the traditional erecting mechanism in the upper hydraulic oil cylinder is solved.
4. Because the summit of top cambered surface with the perpendicular distance of the central line of the spacing hole of bar is less than the hole diameter of the spacing hole of bar, consequently, the summit of top cambered surface is less than half the hole diameter of the spacing hole of bar apart from the perpendicular distance of the top surface that corresponds in the spacing hole of bar, makes things convenient for the articulated elements to remove from convex through-hole to the spacing hole of bar in, and the landing leg of being convenient for rotates.
5. The limiting of the articulated elements is realized by combining the hole structure with the pin shaft.
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 supporting legs are provided with the wheels, the erecting mechanism can be applied to various operating vehicles loaded with objects to be toppled, and the operating vehicle with the erecting mechanism can improve the unloading efficiency.
Drawings
FIG. 1 is a structural diagram of a support leg of a conventional erecting mechanism in an initial state of swing;
FIG. 2 is a structural diagram of a supporting leg of a conventional erecting mechanism in a state of complete swing;
FIG. 3 is a structural diagram of the leg swing initial state of the erecting mechanism of the present invention;
FIG. 4 is a structural schematic diagram of the mechanical self-locking state of the erecting mechanism of the invention;
FIG. 5 is a partial enlarged view of area A in FIG. 4;
FIG. 6 is a schematic structural view of a linear type bar-shaped position-limiting structure;
FIG. 7 is a schematic structural diagram of an arc-shaped bar-shaped limiting structure;
fig. 8 is a schematic structural diagram of a hybrid type strip-shaped limiting structure.
The labels in the figure are: 1-upper hydraulic oil cylinder, 2-vehicle body supporting device, 201-supporting leg swing 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 limiting structure, 505-hinged part, 506-arc limiting structure, 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.
Example 1
As shown in fig. 1 and 2, fig. 1 is a structural schematic diagram of an initial state of swing of a support leg 203 of the existing erecting mechanism, fig. 2 is a structural schematic diagram of a state of swing completion of the support leg 203 of the existing erecting mechanism, and it can be seen from fig. 1 and 2 that the existing erecting mechanism is divided into two independent systems, namely, a vehicle body support and an upper erection.
The vehicle body supporting device 2 is used for supporting a vehicle and preventing the vehicle from overturning when the vehicle is toppled, the supporting leg swing hydraulic oil cylinder 201 is used for being connected with the supporting leg 203, an intermediate connecting rod 202 is further arranged between the supporting leg swing hydraulic oil cylinder 201 and the supporting leg, the supporting leg 203 fixedly connected to the intermediate connecting rod 202 is driven to rotate through the extension and retraction of the supporting leg swing hydraulic oil cylinder 201, the intermediate connecting rod 202 drives the supporting leg 203 to rotate, and the supporting leg 203 rotates to be perpendicular to the horizontal plane and can.
The upper erection device is used for dumping loaded objects, the upper hydraulic oil cylinder 1 is used for connecting the frame 3 with the upper installation 4, and when the upper hydraulic oil cylinder 1 stretches, the upper installation 4 rotates by taking the frame 3 as a fulcrum, so that dumping of the loaded objects is completed.
The erecting mechanism lacks a mechanical self-locking mechanism, and when the support leg swing hydraulic oil cylinder 201 leaks inwards, outwards or has other faults, the vehicle body can be caused to overturn.
As shown in fig. 3, fig. 3 is a structural schematic diagram of an initial state of swing of a leg 503 of the erecting mechanism of the present invention, the erecting mechanism includes an erecting telescopic member 501, a connecting rod 502 and a leg 503, one end of the erecting telescopic member 501 is hinged to the upper mount 4 of the vehicle, the other end is hinged to one end of the connecting rod 502, the other end of the connecting rod 502 is connected to a rod body or a supporting end of the leg 503, one end of the leg 503 opposite to the supporting end is hinged to the frame 3, and the frame 3 is hinged to the upper mount 4 at the tail of the two;
the erecting mechanism further comprises a bar-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 erecting telescopic member 501 and the connecting rod 502 through the bar-shaped limiting structure.
The support end on the leg 503 is the end of the leg 503 that rotates to be close to the ground.
The hinged member 505 is fixed with the vertical telescopic member 501, the limit end point of the strip-shaped limit structure 504 is upwards connected with an arc limit structure 506, and the hinged member 505 can enter the arc limit structure 506 along the strip-shaped limit structure 504.
The strip-shaped limiting structure 504 may be a strip-shaped limiting hole, and the arc-shaped limiting structure 506 may be an arc-shaped through hole with an arc surface at the top, and the strip-shaped limiting hole is smoothly connected with the arc-shaped through hole.
The vertical distance between the top point of the top cambered surface and the central line of the strip-shaped limiting hole is smaller than the hole diameter of the strip-shaped limiting hole.
The bar-shaped limiting structures 504 may be bar-shaped limiting grooves, and the arc-shaped limiting structures 506 may be arc-shaped limiting grooves with arc surfaces at the tops.
The connection relationship among the hinge 505, the vertical extension piece 501 and the connecting rod 502:
the hinge member 505 and the vertical extension member 501 may be fixed by a key connection, such as a flat key connection, a spline connection, etc. The hinge 505 includes a pin shaft, and the pin shaft penetrates through the strip-shaped limiting hole; the erecting telescopic piece 501 comprises a shaft hole matched with the pin shaft, the shaft hole is matched with the pin shaft to realize the hinging of the erecting telescopic piece 501 and the connecting rod 502, and the hinging piece 505 is fixed between the erecting telescopic piece 501 through key connection.
The vertical telescopic part 501, the connecting rod 502, the supporting leg 503 and the frame 3 are arranged to form a link mechanism, and the working process of the link mechanism limited by the strip-shaped limiting structure 504 and the arc-shaped limiting structure 506 can be divided into three parts, namely supporting leg 503 swinging, mechanical self-locking and upper mounting 4 vertical.
(1) Swing part of the leg 503
Firstly, the vertical telescopic part 501 is telescopic, because the upper part 4 has a certain weight, the acting force generated by the telescopic action of the vertical telescopic part 501 is reacted on the connecting rod 502, because of the existence of the strip-shaped limit structure 504, the hinge 505 connecting the vertical telescopic part 501 and the connecting rod 502 moves along the central line of the strip-shaped limit structure, one end of the supporting leg 503 is hinged on the frame 3, the connecting rod 502 drives the supporting leg 503 to rotate, thereby the telescopic action of the vertical telescopic part 501 is converted into the swinging action of the supporting leg 503, the action process is continued until the hinge 505 moves to the terminal or the dead point position of the strip-shaped limit structure 504, and the swinging action of the supporting leg 503 is finished; wherein the dead centre position is shown in figure 6.
(2) Mechanical self-locking
Because the vertical telescopic member 501 is telescopic, the hinged member 505 enters the arc limiting structure 506 upwards along the strip limiting structure 504, therefore, no matter whether the vertical telescopic member 501 is unloaded or not, the hinged member 505 bears the weight of the frame 3, and because the hinged member 505 and the vertical telescopic member 501 are fixed, the hinged member 505 cannot slide downwards in the strip limiting structure 504 and the arc limiting structure 506, mechanical self-locking is formed, and the phenomenon that the supporting leg is soft cannot occur.
(3) Top entry 4 riser
The vertical telescopic part 501 stretches, the hinge member 505 is locked in the arc limiting structure 506 and cannot move in the bar-shaped limiting structure 504, namely the vertical telescopic part 501 rotates by taking the arc limiting structure 506 as a hinge point, and at the moment, the vertical telescopic part 501 drives the upper part 4 to rotate, namely the upper part 4 vertically tilts.
As shown in fig. 4 and 5, fig. 4 is a schematic structural diagram of the mechanical self-locking state of the erecting mechanism of the present invention, and fig. 5 is a partially enlarged view of a region a in fig. 4, which shows the connection position relationship of the erecting telescopic member 501, the connecting rod 502, the bar-shaped limiting structure 504, the circular arc limiting structure 506 and the leg 503 after the leg 503 is swung.
When the supporting leg 503 swings, the erecting telescopic part 501 stretches, the erecting telescopic part 501 and the hinge 505 of the connecting rod 502 move along the bar-shaped limiting structure 504, the hinge 505 can include a pin shaft, namely the pin shaft penetrates through the bar-shaped limiting hole, the pin shaft moves downwards along the bar-shaped limiting structure 504 in a slant manner until the pin shaft reaches the end point, the erecting telescopic part 501 continues to extend, namely the pin shaft moves upwards along the limiting end point of the bar-shaped limiting structure 504 to enter the arc-shaped limiting structure 506, and mechanical self-locking is formed.
In addition, the hinge point of the vertical telescopic member 501 and the upper garment 4 can be arranged in the middle of the upper garment 4, the hinge point of the supporting leg 503 and the frame 3 can be arranged at the tail of the frame 3, and the strip-shaped limiting structure is arranged at the tail of the frame 3.
In addition, the erecting telescopic member 501 may be a linear reciprocating hydraulic cylinder or a linear reciprocating cylinder, and when the erecting telescopic member 501 may be a linear reciprocating hydraulic cylinder such as a vertical cylinder, the problem of soft leg caused by internal leakage or external leakage of hydraulic oil can be solved.
The leg 503 includes a linear reciprocating hydraulic cylinder, and after the first part of the motion is completed, the leg 503 can be extended and retracted to contact the ground with the leg 503, thereby completing the support of the leg 503.
As shown in fig. 6, a strip-shaped limit structure 504 and an arc-shaped limit structure 506 are provided on the frame 3.
The bar-shaped limiting structure 504 may be a bar-shaped limiting hole, and the arc-shaped limiting structure 506 may be an arc-shaped through hole with an arc surface at the top, and the bar-shaped limiting hole is smoothly connected with the arc-shaped through hole.
The vertical distance between the top of the top arc surface and the central line of the strip-shaped limiting hole is smaller than the diameter of the strip-shaped limiting hole, so that after the dumping is finished, the pin shaft moves downwards to the strip-shaped limiting hole from the circular arc-shaped through hole, and the rotation recovery of the supporting leg 503 is facilitated.
As shown in fig. 6, 7 and 8, the bar-shaped limiting structure 504 is an independent mechanism fixedly connected to the frame 3 and provided with the bar-shaped limiting structure 504, or the bar-shaped limiting structure 504 is provided on the frame 3, and when the bar-shaped limiting structure is an independent mechanism, the structure may be connected to the frame 3 by providing a structure with at least one bar-shaped limiting structure 504, and the number of the structure is preferably two, and the structure is respectively used for placing the left end and the right end of the pin shaft.
The bar-shaped limiting structures 504 may be linear bar-shaped limiting structures as shown in fig. 6, arc bar-shaped limiting structures as shown in fig. 7, or mixed bar-shaped limiting structures as shown in fig. 8, and the number of the bar-shaped limiting structures 504 may be single or two, and when the number is two, the bar-shaped limiting structures are respectively used for placing the left end and the right end of the pin shaft. 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.
The strip-shaped limiting structures 504 can be strip-shaped limiting holes or strip-shaped limiting grooves; the arc-shaped limiting structure 506 may be an arc-shaped limiting hole or an arc-shaped limiting groove.
When the strip-shaped limiting groove and the arc-shaped limiting groove are used, at least two conditions are included. In the first case, a pin is limited to use a pair of bar-shaped limiting structures 504 and a pair of circular arc limiting structures 506, and all the limiting structures are groove-shaped limiting structures, at the moment, the pin is installed firstly, and then the two limiting structures comprising the bar-shaped limiting grooves and the circular arc limiting grooves are installed at the left end and the right end of the pin respectively so as to complete axial limiting of the pin. In the second case, a pin shaft is limited to use a pair of bar-shaped limiting structures 504 and a pair of circular arc limiting structures 506, and a half of the limiting structures are groove-shaped limiting structures, the half of the limiting structures comprise bar-shaped limiting holes and hole-shaped limiting structures of circular arc through holes, one end of the pin shaft is arranged in the bar-shaped limiting grooves after all the limiting structures are installed, the other end of the pin shaft is arranged on the bar-shaped limiting holes, axial movement of the pin shaft at one end of the bar-shaped limiting grooves cannot be carried out after installation, and axial movement of a limiting pin of a component such as an R-shaped pin is inserted into the end portion of the.
When the strip-shaped limiting hole and the arc-shaped limiting hole are used for limiting, a set of strip-shaped limiting hole and a set of arc-shaped limiting hole are respectively arranged at two ends of the pin shaft, and the axial movement of the pin is limited by inserting components such as an R-shaped pin into the end part of the pin shaft.
Example 2
As shown in fig. 3 and 4, the work vehicle with the erecting mechanism is applied with the erecting mechanism as described in embodiment 1:
one end of the vertical telescopic part 501 is hinged with the upper part 4 of the vehicle, the other end is hinged with one end of the connecting rod 502, the other end of the connecting rod 502 is connected with the rod body or the supporting end of the supporting leg 503, the end of the supporting leg 503 opposite to the supporting end is hinged with the frame 3, and the frame 3 is hinged with the upper part 4 at the tail parts of the two;
the erecting mechanism further comprises a strip-shaped limiting structure 504, and the swinging angle of the supporting leg 503 is controlled by limiting the movement range of a hinge 505 connecting the erecting telescopic part 501 and the connecting rod 502 through the strip-shaped limiting structure 504;
the hinged member 505 is fixed with the vertical telescopic member 501, the limit end point of the strip-shaped limit structure 504 is upwards connected with an arc limit structure 506, and the hinged member 505 can enter the arc limit structure 505 along the strip-shaped limit structure 504.
The hinged point of the vertical telescopic member 501 and the upper garment 4 can be arranged in the middle of the upper garment 4, the hinged point of the supporting leg 503 and the frame 3 can be arranged at the tail of the frame 3, and the strip-shaped limiting structure 504 is arranged at the tail of the frame 3.
The frame 3 of the work vehicle is provided with a plurality of pairs of wheels 7, and the support legs 503 are provided behind the last pair of wheels 7. Because the upper loader 4 is hinged with the frame 3, one of the main stress points of the vehicle is the hinged point, the vehicle can be better supported when the dumping action occurs after the supporting legs 503 are provided with the wheels 7, the erecting mechanism can be applied to various working vehicles loaded with objects to be dumped, and the working vehicle with the erecting mechanism can improve the efficiency of the unloading operation.
The front end of the frame 3 of the working vehicle is also provided with a cab 8, and the number of pairs of wheels 7 is preferably two.
Claims (10)
1. The erecting mechanism is characterized by comprising an erecting telescopic piece (501), a connecting rod (502) and a supporting leg (503), wherein one end of the erecting telescopic piece (501) is hinged with an upper garment (4) of a vehicle, the other end of the erecting 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 erecting mechanism further comprises a strip-shaped limiting structure (504), and the swinging angle of the supporting leg (503) is controlled by limiting the movement range of a hinge piece (505) connecting the erecting telescopic piece (501) and the connecting rod (502) through the strip-shaped limiting structure (504);
articulated elements (505) with it is fixed to erect between expansion piece (501), the spacing terminal point of bar limit structure (504) upwards is connected with circular arc limit structure (506), articulated elements (505) can be followed bar limit structure (504) get into circular arc limit structure (505).
2. The erecting mechanism according to claim 1, wherein the strip-shaped limiting structure (504) is a strip-shaped limiting hole, the arc-shaped limiting structure (506) is an arc-shaped through hole with an arc surface at the top, and the strip-shaped limiting hole is smoothly connected with the arc-shaped through hole.
3. The erecting mechanism according to claim 2, wherein a perpendicular distance between a vertex of the top arc surface and a center line of the strip-shaped limiting hole is smaller than a hole diameter of the strip-shaped limiting hole.
4. The erecting mechanism according to claim 2, wherein said hinge member (505) comprises a pin, said pin extending through said elongated hole.
5. The erecting mechanism according to claim 4, wherein the erecting telescopic member (501) comprises a shaft hole matched with the pin shaft, and the shaft hole and the pin shaft are matched to realize the hinging of the erecting telescopic member (501) and the connecting rod (502).
6. The erecting mechanism according to claim 5, wherein the pin shaft and the shaft hole are fixed by key connection.
7. The erecting mechanism according to any one of claims 1 to 6, wherein said bar-shaped limiting structure is an independent mechanism fixedly connected with said vehicle frame (3) and provided with said bar-shaped limiting structure (504) or by means of a bar-shaped limiting structure (504) provided on said vehicle frame (3).
8. The erecting mechanism according to claim 7, wherein said bar-shaped limit structure (504) is a linear bar-shaped limit structure, an arcuate bar-shaped limit structure, or a hybrid bar-shaped limit structure.
9. The erecting mechanism according to claim 8, wherein said erecting telescoping member (501) is a linear reciprocating hydraulic ram or a linear reciprocating pneumatic cylinder.
10. A work vehicle with a erecting mechanism, characterized in that a plurality of pairs of wheels (7) is arranged on the frame (3) and that said legs (503) are arranged behind the last pair of said wheels (7) by applying the erecting mechanism according to any of claims 1-9.
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| CN201911131511.6A CN110843639B (en) | 2019-11-19 | 2019-11-19 | Erecting mechanism and operation vehicle with erecting mechanism |
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| CN201911131511.6A CN110843639B (en) | 2019-11-19 | 2019-11-19 | Erecting mechanism and operation vehicle with erecting mechanism |
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| CN110843639A true CN110843639A (en) | 2020-02-28 |
| CN110843639B CN110843639B (en) | 2021-03-09 |
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| DE3441801A1 (en) * | 1984-11-15 | 1986-05-15 | Konrad Adler GmbH & Co, 7962 Wolfegg | Vehicle with support legs which can be swivelled out about horizontal axes |
| CN2640858Y (en) * | 2003-08-11 | 2004-09-15 | 江苏省机电研究所有限公司 | Special landing leg mechanism for automobile |
| CN201494418U (en) * | 2009-02-26 | 2010-06-02 | 徐州海伦哲专用车辆股份有限公司 | Support leg device used for movable construction device with self loading and unloading function |
| CN205010061U (en) * | 2015-09-17 | 2016-02-03 | 中集车辆（江门市）有限公司 | Pot -type semitrailer |
| CN205168465U (en) * | 2015-10-28 | 2016-04-20 | 安徽四创电子股份有限公司 | Automatic supporting mechanism of big span platform of upper assembling type |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3441801A1 (en) * | 1984-11-15 | 1986-05-15 | Konrad Adler GmbH & Co, 7962 Wolfegg | Vehicle with support legs which can be swivelled out about horizontal axes |
| CN2640858Y (en) * | 2003-08-11 | 2004-09-15 | 江苏省机电研究所有限公司 | Special landing leg mechanism for automobile |
| CN201494418U (en) * | 2009-02-26 | 2010-06-02 | 徐州海伦哲专用车辆股份有限公司 | Support leg device used for movable construction device with self loading and unloading function |
| CN205010061U (en) * | 2015-09-17 | 2016-02-03 | 中集车辆（江门市）有限公司 | Pot -type semitrailer |
| CN205168465U (en) * | 2015-10-28 | 2016-04-20 | 安徽四创电子股份有限公司 | Automatic supporting mechanism of big span platform of upper assembling type |
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| CN110843639B (en) | 2021-03-09 |
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Address after: 415106 Guanxi Town, Dingcheng District, Changde City, Hunan Province Patentee after: Zhonglian Hengtong Machinery Co.,Ltd. Address before: No.88, south section of Dongliu Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province (large tonnage chassis assembly plant of Zoomlion) Patentee before: CHANGSHA ZHONGLIAN HENGTONG MACHINERY Co.,Ltd. |