CN210258174U - Universal lifting mechanism for secondary adjustment of wrecker and wrecker - Google Patents
Universal lifting mechanism for secondary adjustment of wrecker and wrecker Download PDFInfo
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- CN210258174U CN210258174U CN201921151980.XU CN201921151980U CN210258174U CN 210258174 U CN210258174 U CN 210258174U CN 201921151980 U CN201921151980 U CN 201921151980U CN 210258174 U CN210258174 U CN 210258174U
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- arm
- oil cylinder
- supporting
- hinged
- wrecker
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Abstract
The utility model provides a general lifting mechanism for secondary adjustment of a wrecker and the wrecker, wherein the general lifting mechanism comprises an auxiliary frame, a suspension arm amplitude-variable oil cylinder, a supporting arm amplitude-variable oil cylinder, a vertical arm, a supporting arm horizontal arm and a folding arm oil cylinder; one end of the suspension arm is hinged with the auxiliary frame; one end of the boom luffing oil cylinder is hinged with the auxiliary frame, and the other end of the boom luffing oil cylinder is hinged with the boom; the vertical arm is hinged with the suspension arm, and the vertical arm is connected with the horizontal arm of the supporting arm through a folding arm oil cylinder; one end of the supporting arm amplitude-variable oil cylinder is hinged with the suspension arm, the other end of the supporting arm amplitude-variable oil cylinder is hinged with the vertical arm, and the secondary adjustment of the rear supporting distance and the effective length of the supporting arm can be realized by the stretching of the supporting arm amplitude-variable oil cylinder. The utility model discloses both satisfied ordinary cargo vehicle can realize the rescue of public transit and bus again.
Description
Technical Field
The utility model relates to a road wrecker especially relates to a lifting mechanism of road wrecker.
Background
The whole weight of ordinary cargo vehicle is big, the front overhang is short, minimum ground clearance is big, and vehicle weight such as novel public transit and big bus is little, the front overhang is long, the bottom plate is apart from ground height little, to these two types of motorcycle type characteristics, ordinary wrecker can't secondary control because of back hold in the palm apart from and trailing arm effective length, and the trailing arm horizontal arm height is big waiting factor, can't satisfy the emergent rescue demand of the two simultaneously. Therefore, the design of the lifting mechanism which not only meets the requirements of common cargo vehicles, but also can realize the rescue of buses and buses is particularly important.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a general lifting mechanism of secondary regulation for wrecker, this kind of mechanism had both satisfied ordinary cargo vehicle and can realize the rescue of public transit and bus again.
The utility model discloses realize according to following technical scheme:
the general lifting mechanism for secondary adjustment of the wrecker comprises an auxiliary frame, a suspension arm amplitude-variable oil cylinder, a supporting arm amplitude-variable oil cylinder, a vertical arm, a supporting arm horizontal arm and a folding arm oil cylinder; one end of the suspension arm is hinged with the auxiliary frame; one end of the boom luffing oil cylinder is hinged with the auxiliary frame, and the other end of the boom luffing oil cylinder is hinged with the boom; the vertical arm is hinged with the suspension arm, and the vertical arm is connected with the horizontal arm of the supporting arm through a folding arm oil cylinder; one end of the supporting arm amplitude-variable oil cylinder is hinged with the suspension arm, the other end of the supporting arm amplitude-variable oil cylinder is hinged with the vertical arm, and the secondary adjustment of the rear supporting distance and the effective length of the supporting arm can be realized by the stretching of the supporting arm amplitude-variable oil cylinder.
Furthermore, a triangular connecting block is arranged between the vertical arm and the horizontal arm of the supporting arm; the first angle of the triangular connecting block is hinged with the horizontal arm of the supporting arm, the second angle is hinged with the vertical arm, and the outer side of the third angle is provided with a stop block for abutting against the bottom of the vertical arm.
Furthermore, a triangular hinge seat is arranged on the supporting arm horizontal arm and is hinged with the arm folding oil cylinder after penetrating through a triangular connecting block.
Further, a flitch I is arranged on the outer side of the triangular hinge seat, and a flitch II is arranged on the inner side of the triangular connecting block; the arm folding oil cylinder pushes the bracket arm horizontal arm to rotate around one hinge point until the flitch I is contacted with the flitch II, and the arm folding oil cylinder continues to push the bracket arm horizontal arm to drive the triangular connecting block to rotate around the other hinge point, so that the bracket arm is folded.
Further, the horizontal arm of the supporting arm consists of a basic arm and all sections of telescopic arms, wherein all the sections of telescopic arms are inserted together to form a telescopic arm body, and the telescopic arm body is inserted in the basic arm.
Furthermore, the upper plane reinforcing plate and the lower plane reinforcing plate on each section of telescopic arm are used as sliding blocks, so that the height of the horizontal arm of the support arm is reduced.
Furthermore, mechanical locking is arranged on the horizontal arm of the supporting arm, so that the horizontal arm of the supporting arm can be locked after being extended or retracted for a preset distance.
Furthermore, all be equipped with a plurality of locking holes on each section of flexible arm, realize locking each section of flexible arm through the bolt.
The utility model provides a wrecker, includes the general lifting mechanism of aforesaid wrecker secondary control.
The utility model discloses beneficial effect:
the telescopic structure of the supporting arm amplitude-variable oil cylinder can realize secondary adjustment of the rear supporting distance and the effective length of the supporting arm, and can meet the rescue requirements of a public bus with a longer front suspension and a large front axle load; the lapping part of the flitch of the triangular connecting block built in the vertical arm and the flitch on the horizontal arm of the supporting arm is closer to the root part of the flitch of the triangular connecting block, the flitch has good stress, the movement mechanism of the flitch reduces the size of the folding arm oil cylinder, and the weight of the structural part is reduced; the height of the horizontal arm of the supporting arm is reduced by the structure of the welding iron sliding blocks on the telescopic arms of the supporting arm, and the rescue requirements of public buses with low distance between the foot sole plates and the ground can be met; the mechanical locking device on the horizontal arm of the supporting arm provides secondary protection for supporting and pulling operation, and safety accidents caused by failure of an oil cylinder in the supporting and pulling process are prevented.
Drawings
FIG. 1 is an overall view of a general lifting mechanism for secondary adjustment of the wrecker of the utility model;
FIG. 2 is a fully-contracted state diagram of the supporting arm luffing cylinder of the utility model;
FIG. 3 is a fully extended state diagram of the boom luffing cylinder of the present invention;
FIG. 4 is a diagram showing the state that the flitch of the bracket horizontal arm of the present invention is separated from the flitch on the triangular connecting block;
FIG. 5 is a contact state diagram of the flitch of the bracket horizontal arm of the present invention and the flitch on the triangular connecting block;
FIG. 6 is a state diagram of the triangular connecting block of the present invention being embedded in the vertical arm;
fig. 7 is a state diagram of the locking hole on the horizontal arm of the bracket arm of the present invention.
Reference numbers in the above figures: 1. an auxiliary frame; 2. a suspension arm; 3. a boom luffing cylinder; 4. a supporting arm amplitude-variable oil cylinder; 5. a vertical arm; 6. a folding arm cylinder; 7. a triangular connecting block; 8. a bracket horizontal arm; 9. a locking hole; 10. a slider; 11. a stopper; 12. pasting a board I; 13. pasting a board II; 14. the triangle hinges the seat.
FIG. 8 is a general view of a lifting mechanism of a conventional road wrecker;
reference numbers in the above figures: 101. an auxiliary frame a; 102. a suspension arm a; 103. a boom luffing cylinder a; 104. a vertical arm a; 105. a folding arm oil cylinder a; 106. a bracket arm horizontal arm a; 107. a slide block a.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 8, a boom a102 is connected to a sub-frame a101 through a hinge point shaft and a boom luffing cylinder a103, a vertical arm a104 is welded to the boom a102, a bracket horizontal arm a106 and the vertical arm a104 are connected through a folding cylinder a105 and a hinge point, and a slider a107 is vertically mounted on the inner side of the bracket horizontal arm a 106.
When the wrecker is used for rescue, the included angle and the height between a horizontal arm a106 of the supporting arm and the ground can be adjusted by the stretching of the amplitude oil cylinder a103 of the suspension arm and the stretching of the arm folding oil cylinder a105 of the suspension arm, but the effective length and the lifting quality of the supporting arm cannot be adjusted secondarily; the arm folding oil cylinder a105 simultaneously considers the folding of the horizontal arm 106 of the supporting arm when the wrecker does not work, the required stroke and the activity space of the arm folding oil cylinder a105 of the mechanism are large, the section size of the vertical arm a104 needs to be increased, and the light weight of the product is not facilitated; the slide block a107 arranged on the inner side of the horizontal arm a106 of the supporting arm increases the height of the arm body, so that the rescue of the public bus with the lower distance between the bottom plate and the ground cannot be realized; the lack of mechanical locking on the horizontal arm a106 of the bracket arm cannot provide secondary protection for the towing process.
The utility model aims at providing a general lifting mechanism of secondary regulation for wrecker, this kind of mechanism had both satisfied ordinary cargo vehicle and can realize the rescue of public transit and bus again. The specific scheme is as follows:
as shown in fig. 1, 2 and 3, a general lifting mechanism for secondary adjustment of a wrecker comprises an auxiliary frame 1, a boom 2, a boom amplitude-changing oil cylinder 3, a boom amplitude-changing oil cylinder 4, a vertical arm 5, a boom horizontal arm 8 and a boom folding oil cylinder 6; one end of the suspension arm 2 is hinged with the auxiliary frame 1; one end of a boom amplitude cylinder 3 is hinged with the auxiliary frame 1, and the other end is hinged with the boom 2; the vertical arm 5 is hinged with the suspension arm 2, and the vertical arm 5 is connected with the support arm horizontal arm 8 through a folding arm oil cylinder 6; one end of the supporting arm amplitude-variable oil cylinder 4 is hinged with the suspension arm 2, the other end of the supporting arm amplitude-variable oil cylinder is hinged with the vertical arm 5, and the secondary adjustment of the rear supporting distance and the effective length of the supporting arm can be realized by the extension and retraction of the supporting arm amplitude-variable oil cylinder 4.
As shown in fig. 4, 5 and 6, a triangular connecting block 7 is also arranged between the vertical arm 5 and the bracket horizontal arm 8; the first angle of the triangular connecting block 7 is hinged with the supporting arm horizontal arm 8, the second angle is hinged with the vertical arm 5, and the outer side of the third angle is provided with a stop block 11 for abutting against the bottom of the vertical arm 5.
The bracket horizontal arm 8 is provided with a triangular hinged seat 14, and the triangular hinged seat 14 is hinged with the arm folding oil cylinder 6 after passing through the triangular connecting block 7.
The outer side of the triangular hinged seat 14 is provided with a flitch I12, and the inner side of the triangular connecting block 7 is provided with a flitch II 13; the arm folding oil cylinder 6 pushes the bracket arm horizontal arm 8 to rotate around one hinge point until the flitch I12 is contacted with the flitch II 13, and the arm folding oil cylinder 6 continues to push the bracket arm horizontal arm 8 to drive the triangular connecting block 7 to rotate around the other hinge point, so that the bracket arm is folded.
As shown in fig. 7, the horizontal boom 8 is composed of a basic boom and telescopic booms, wherein the telescopic booms are inserted together to form a telescopic boom body, which is inserted into the basic boom.
The upper and lower planar stiffening plates on each section of telescopic arm act as sliders 10 to lower the height of the horizontal arm 8 of the trailing arm.
And the bracket arm horizontal arm 8 is provided with a mechanical lock for realizing locking after the bracket arm horizontal arm 8 extends or retracts for a preset distance.
All be equipped with a plurality of locking holes 9 on each section flexible arm, realize locking each section flexible arm through the bolt.
The utility model discloses a theory of operation:
when the towing operation is carried out, the telescopic action of the suspension arm amplitude-changing oil cylinder 3 and the arm folding oil cylinder 6 drives the horizontal arm 8 of the supporting arm to change amplitude up and down, and the included angle and the height between the horizontal arm 8 of the supporting arm and the ground are adjusted according to the distance between the front bottom plate of the towed vehicle and the ground, which is a one-time adjustment; the telescopic action of the supporting arm amplitude-variable oil cylinder 4 drives the vertical arm 5 and the supporting arm horizontal arm 8 to change the amplitude up and down, the included angle and the height between the supporting arm horizontal arm 8 and the ground are further adjusted, meanwhile, the supporting arm amplitude-variable oil cylinder 4 is adjusted according to the axle load of a front suspension and a front axle of a towed vehicle, the supporting arm amplitude-variable oil cylinder 4 contracts, the rear supporting distance is small, the lifting force is larger, the supporting arm amplitude-variable oil cylinder 4 extends, and the effective length of the supporting arm is increased, which is a secondary adjustment; the arm folding oil cylinder 6 starts to act from full retraction, and pushes the arm supporting horizontal arm 8 to rotate around a hinge point A in the attached drawing 4, so that the lifting height adjustment of the towed vehicle is realized.
After the towing operation is finished, the arm folding oil cylinder 6 pushes the arm supporting horizontal arm 8 to rotate around the hinge point A in the attached drawing 4 until the flitch I12 on the arm supporting horizontal arm 8 is contacted with the flitch II 13 on the triangular connecting block 7, at the moment, the arm folding oil cylinder 6 continues to push the arm supporting horizontal arm 8 to drive the triangular connecting block 7 to rotate around the hinge point B in the attached drawing 4, the arm supporting folding is realized, the arm supporting amplitude-changing oil cylinder 4 extends fully, the suspension arm amplitude-changing oil cylinder 3 is properly adjusted, the arm supporting horizontal arm 8 is perpendicular to the ground, and the vehicle folding state is achieved.
The telescopic arm of the bracket horizontal arm 8 is not provided with a sliding block, the upper plane reinforcing plate and the lower plane reinforcing plate of each section of telescopic arm serve as the sliding block 10, and the height of the arm body is reduced.
A mechanical locking device is additionally arranged on a horizontal arm 8 of the supporting arm, locking holes 9 are respectively formed in the fully-contracted position, the middle position and the fully-extended position of the supporting arm, referring to the attached drawing 7, the locking holes can be selected according to operation requirements, and safety protection is provided for supporting and pulling operation under the condition that a telescopic oil cylinder fails.
In conclusion, the telescopic structure of the supporting arm amplitude-variable oil cylinder can realize the secondary adjustment of the rear supporting distance and the effective length of the supporting arm, and can meet the rescue requirements of the public transport bus with longer front overhang and large front axle load; the lapping part of the flitch of the triangular connecting block built in the vertical arm and the flitch on the horizontal arm of the supporting arm is closer to the root part of the flitch of the triangular connecting block, the flitch has good stress, the movement mechanism of the flitch reduces the size of the folding arm oil cylinder, and the weight of the structural part is reduced; the height of the horizontal arm of the supporting arm is reduced by the structure of the welding iron sliding blocks on the telescopic arms of the supporting arm, and the rescue requirements of public buses with low distance between the foot sole plates and the ground can be met; the mechanical locking device on the horizontal arm of the supporting arm provides secondary protection for supporting and pulling operation, and safety accidents caused by failure of an oil cylinder in the supporting and pulling process are prevented.
The utility model also provides a wrecker, including the general lifting mechanism that aforementioned wrecker secondary was adjusted.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (9)
1. Mechanism is lifted in general of wrecker secondary regulation, its characterized in that: the device comprises an auxiliary frame, a suspension arm amplitude-variable oil cylinder, a supporting arm amplitude-variable oil cylinder, a vertical arm, a supporting arm horizontal arm and a folding arm oil cylinder;
one end of the suspension arm is hinged with the auxiliary frame;
one end of the boom luffing oil cylinder is hinged with the auxiliary frame, and the other end of the boom luffing oil cylinder is hinged with the boom;
the vertical arm is hinged with the suspension arm, and the vertical arm is connected with the horizontal arm of the supporting arm through a folding arm oil cylinder;
one end of the supporting arm amplitude-variable oil cylinder is hinged with the suspension arm, the other end of the supporting arm amplitude-variable oil cylinder is hinged with the vertical arm, and the secondary adjustment of the rear supporting distance and the effective length of the supporting arm can be realized by the stretching of the supporting arm amplitude-variable oil cylinder.
2. The universal lifting mechanism for secondary adjustment of wreckers according to claim 1, wherein: a triangular connecting block is also arranged between the vertical arm and the horizontal arm of the supporting arm;
the first angle of the triangular connecting block is hinged with the horizontal arm of the supporting arm, the second angle is hinged with the vertical arm, and the outer side of the third angle is provided with a stop block for abutting against the bottom of the vertical arm.
3. The universal lifting mechanism for the secondary adjustment of the wrecker as claimed in claim 2, wherein: the bracket arm horizontal arm is provided with a triangular hinged seat which is hinged with the arm folding oil cylinder after penetrating through the triangular connecting block.
4. The universal lifting mechanism for secondary adjustment of wreckers as claimed in claim 3, wherein: the outer side of the triangular hinge seat is provided with a flitch I, and the inner side of the triangular connecting block is provided with a flitch II;
the arm folding oil cylinder pushes the bracket arm horizontal arm to rotate around one hinge point until the flitch I is contacted with the flitch II, and the arm folding oil cylinder continues to push the bracket arm horizontal arm to drive the triangular connecting block to rotate around the other hinge point, so that the bracket arm is folded.
5. The universal lifting mechanism for secondary adjustment of wreckers according to claim 1, wherein: the horizontal arm of the supporting arm consists of a basic arm and all sections of telescopic arms, wherein all the sections of telescopic arms are inserted together to form a telescopic arm body, and the telescopic arm body is inserted in the basic arm.
6. The universal lifting mechanism for the secondary adjustment of the wrecker as claimed in claim 5, wherein: the upper plane reinforcing plate and the lower plane reinforcing plate on each section of telescopic arm are used as sliding blocks, so that the height of the horizontal arm of the supporting arm is reduced.
7. The universal lifting mechanism for the secondary adjustment of the wrecker as claimed in claim 5, wherein: and the supporting arm horizontal arm is provided with a mechanical lock for realizing locking after the supporting arm horizontal arm extends or retracts for a preset distance.
8. The universal lifting mechanism for secondary adjustment of wreckers as claimed in claim 7, wherein: all be equipped with a plurality of locking holes on each section of flexible arm, realize locking each section of flexible arm through the bolt.
9. The utility model provides a wrecker which characterized in that: universal lift mechanism comprising a secondary adjustment of the wrecker of any of the claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151980.XU CN210258174U (en) | 2019-07-22 | 2019-07-22 | Universal lifting mechanism for secondary adjustment of wrecker and wrecker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151980.XU CN210258174U (en) | 2019-07-22 | 2019-07-22 | Universal lifting mechanism for secondary adjustment of wrecker and wrecker |
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| Publication Number | Publication Date |
|---|---|
| CN210258174U true CN210258174U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921151980.XU Active CN210258174U (en) | 2019-07-22 | 2019-07-22 | Universal lifting mechanism for secondary adjustment of wrecker and wrecker |
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| CN (1) | CN210258174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303973A (en) * | 2019-07-22 | 2019-10-08 | 徐州徐工随车起重机有限公司 | A kind of general lift mechanism and obstacles removing car of obstacles removing car Secondary Control |
-
2019
- 2019-07-22 CN CN201921151980.XU patent/CN210258174U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303973A (en) * | 2019-07-22 | 2019-10-08 | 徐州徐工随车起重机有限公司 | A kind of general lift mechanism and obstacles removing car of obstacles removing car Secondary Control |
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