CN216638750U - Double-stage telescopic tail supporting device for truck-mounted crane - Google Patents
Double-stage telescopic tail supporting device for truck-mounted crane Download PDFInfo
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- CN216638750U CN216638750U CN202220044483.5U CN202220044483U CN216638750U CN 216638750 U CN216638750 U CN 216638750U CN 202220044483 U CN202220044483 U CN 202220044483U CN 216638750 U CN216638750 U CN 216638750U
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Abstract
The utility model discloses a two-stage telescopic tail supporting device for a truck-mounted crane, which relates to the technical field of vehicle-mounted lifting, and comprises a base fixed leg box arranged at the tail of a vehicle, a first telescopic leg welding assembly, a second telescopic leg welding assembly, a horizontal binding oil cylinder and a vertical oil cylinder; the first telescopic leg welding assembly is arranged in the base fixed leg box in a sliding mode and can extend out of the rear end of the base fixed leg box; the second telescopic leg welding assembly is arranged in the first telescopic leg welding assembly in a sliding mode and can extend out of the rear end of the first telescopic leg welding assembly; the horizontal binding oil cylinder is arranged in the first telescopic leg welding assembly and comprises a first hydraulic cylinder and a second hydraulic cylinder; the vertical oil cylinder is connected with the rear end of the second telescopic leg welding assembly, and the supporting leg end of the vertical oil cylinder can extend out of and support the ground.
Description
Technical Field
The utility model relates to the technical field of vehicle-mounted lifting, in particular to a double-stage telescopic tail supporting device for a vehicle-mounted crane.
Background
When the truck-mounted hoisting and transporting vehicle works at the rear, the stability and the safety of the whole vehicle are directly influenced by a larger working range; therefore, the double-stage telescopic tail supporting device of the crane is particularly important.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a two-stage telescopic tail supporting device for a vehicle-mounted crane, which can extend out to increase the span of the tail supporting ground according to the requirement of rear operation, and plays a role in improving the hoisting capacity and the stability of the whole vehicle during the rear operation.
In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows: a double-stage telescopic tail supporting device for a truck-mounted crane comprises a base fixed leg box arranged at the tail of a vehicle, a first telescopic leg welding assembly, a second telescopic leg welding assembly, a horizontal binding oil cylinder and a vertical oil cylinder; the first telescopic leg welding assembly is arranged in the base fixed leg box in a sliding mode and can extend out of the rear end of the base fixed leg box; the second telescopic leg welding assembly is arranged in the first telescopic leg welding assembly in a sliding mode and can extend out of the rear end of the first telescopic leg welding assembly; the horizontal binding oil cylinder is arranged in the first telescopic leg welding assembly and comprises a first hydraulic cylinder and a second hydraulic cylinder, and the second hydraulic cylinder is fixedly connected with the first hydraulic cylinder and opposite to the first hydraulic cylinder in direction; a first piston rod of the first hydraulic cylinder is connected with the base fixed leg box through a first joint and is used for driving the first telescopic leg welding assembly to move; a second piston rod of the second hydraulic cylinder is connected with the second telescopic leg welding assembly through a second joint and is used for driving the second telescopic leg welding assembly to move; the vertical oil cylinder is connected with the rear end of the second telescopic leg welding assembly, and the supporting leg end of the vertical oil cylinder can extend out of and support the ground.
The further improvement lies in that: and a bidirectional hydraulic lock is arranged at the cylinder body end of the vertical oil cylinder.
The further improvement lies in that: the bidirectional hydraulic lock is connected with one end of a hydraulic hose through a transition joint, and the other end of the hydraulic hose is connected with the horizontal binding oil cylinder.
The further improvement lies in that: the bidirectional hydraulic lock is installed on the bottom side plane of the vertical oil cylinder body, and the vertical oil cylinder is fixed on the second telescopic leg welding assembly through the elastic retainer ring for the first shaft.
The further improvement lies in that: a first connecting seat is arranged in the base fixing leg box; the first joint is connected with the first connecting seat through a first pin shaft, and a flat gasket and a cotter pin are arranged at the end part of the first pin shaft.
The further improvement lies in that: a second connecting seat is arranged in the second telescopic leg welding assembly; the second joint is connected with the second connecting seat through a second pin shaft, and an elastic check ring for a second shaft is arranged at the end part of the second pin shaft.
The further improvement lies in that: a clamping plate is arranged in the first telescopic leg welding assembly, and the first hydraulic cylinder is fixedly connected with the clamping plate.
The further improvement lies in that: and an upper sliding block is arranged on the top surface of the first telescopic leg welding assembly.
The utility model has the beneficial effects that:
the utility model overcomes the defect that the existing crane has no two-stage telescopic tail support, and has larger working range when working at the rear, thereby directly influencing the stability and safety of the whole crane and the round-trip transportation cost of the balancing weight. The device for the two-stage telescopic tail support of the crane can extend out to increase the span of the tail support ground according to the requirement of rear operation, and plays a role in improving the lifting capacity and the stability of the whole crane during the rear operation.
The two-stage telescopic tail support of the crane is arranged in the base fixing box and the inner side of the tail plate of the whole vehicle, and due to the special installation position, after the two-stage telescopic tail support extends out of the base fixing box, the hoisting capacity of the rear operation can be improved, and the stability and the safety of the rear operation can also be improved; meanwhile, the back-and-forth transportation cost of the balancing weight is reduced, so that the balancing weight is deeply favored by the majority of terminal customers.
Drawings
FIG. 1 is a schematic installation diagram of a double-stage telescopic tail support device for a truck crane according to an embodiment of the utility model;
FIG. 2 is a schematic view of another perspective installation of the dual stage telescoping tail boom for a truck mounted crane according to an embodiment of the present invention;
FIG. 3 is a schematic installation diagram of the double-stage telescopic tail supporting device for the truck-mounted crane after being retracted according to the embodiment of the utility model;
FIG. 4 is an installation schematic diagram of the double-stage telescopic tail supporting device for the truck-mounted crane in another view after being retracted according to the embodiment of the utility model;
FIG. 5 is a top view of a dual stage telescoping tail support device for a truck mounted crane according to an embodiment of the present invention;
FIG. 6 is a front view of a dual stage telescoping tail support device for a truck mounted crane according to an embodiment of the present invention;
FIG. 7 is an enlarged schematic view of a first joint in an embodiment of the utility model;
FIG. 8 is an enlarged schematic view of a second joint in an embodiment of the utility model;
FIG. 9 is a schematic structural view of a leg box with a fixed base according to an embodiment of the present invention.
Reference numerals:
1-horizontal binding oil cylinder; 100-a first hydraulic cylinder; 101-a first piston rod; 102-a first joint; 103-a first pin; 104-flat washers; 105-a cotter pin; 110-a second hydraulic cylinder; 111-a second piston rod; 112-a second joint; 113-a second pin; 114-circlip for second shaft;
2-a first telescoping leg welding assembly; 21-upper slide block; 22-a clamping plate;
3-a second telescopic leg welding assembly; 31-a second connection seat;
4-vertical oil cylinder; 41-elastic retainer ring for first shaft;
5-bidirectional hydraulic lock; 51-a transition joint; 52-hydraulic hoses;
6-base fixing leg box; 61-first connection seat.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the utility model, "a number" or "a number" means two or more unless explicitly specified otherwise.
The technical scheme and the beneficial effects of the utility model are clearer and clearer by further describing the specific embodiment of the utility model with the accompanying drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the utility model, but are not to be construed as limiting the utility model.
Referring to fig. 1 to 6, an embodiment of the present invention provides a two-stage telescopic tail support device for a truck-mounted crane, including a base fixed leg box 6 mounted at a tail of a vehicle, further including a first telescopic leg welding assembly 2, a second telescopic leg welding assembly 3, a horizontal binding cylinder 1, and a vertical cylinder 4;
the first telescopic leg welding assembly 2 is arranged in the base fixed leg box 6 in a sliding mode and can extend out of the rear end of the base fixed leg box 6; specifically, a clamping plate 22 is arranged in the first telescopic leg welding assembly 2, and the first hydraulic cylinder 100 is fixedly connected with the clamping plate 22. The top surface of the first telescopic leg welding assembly 2 is provided with an upper slide block 21.
The second telescopic leg welding assembly 3 is arranged in the first telescopic leg welding assembly 2 in a sliding mode and can extend out of the rear end of the first telescopic leg welding assembly 2;
the horizontal binding oil cylinder 1 is arranged in the first telescopic leg welding assembly 2 and comprises a first hydraulic cylinder 100 and a second hydraulic cylinder 110, and the second hydraulic cylinder 110 is fixedly connected with the first hydraulic cylinder 100 and opposite to the first hydraulic cylinder 100 in direction; a first piston rod 101 of the first hydraulic cylinder 100 is connected with the base fixed leg box 6 through a first joint 102 and is used for driving the first telescopic leg welding assembly 2 to move; a second piston rod 111 of the second hydraulic cylinder 110 is connected with the second telescopic leg welding assembly 3 through a second joint 112, and is used for driving the second telescopic leg welding assembly 3 to move;
the vertical oil cylinder 4 is connected with the rear end of the second telescopic leg welding assembly 3, and the supporting leg end of the vertical oil cylinder 4 can extend out and support the ground. Specifically, a bidirectional hydraulic lock 5 is arranged at the cylinder body end of the vertical oil cylinder 4. The bidirectional hydraulic lock 5 is connected with one end of a hydraulic hose 52 through a transition joint 51, and the other end of the hydraulic hose 52 is connected with the horizontal binding oil cylinder 1. The bidirectional hydraulic lock 5 is installed at the bottom plane of the cylinder body of the vertical cylinder 4, and the vertical cylinder 4 is fixed to the second telescopic leg welding assembly 3 through the elastic collar 41 for the first shaft.
Referring to fig. 7 and 9, a first connecting seat 61 is provided in the base fixing leg box 6; the first joint 102 is connected with the first connection seat 61 by a first pin shaft 103, and the end of the first pin shaft 103 is provided with a flat washer 104 and a split pin 105.
Referring to fig. 6 and 8, a second connecting seat 31 is arranged in the second telescopic leg welding assembly 3; the second joint 112 is connected to the second connecting seat 31 by a second pin 113, and a second circlip 114 is provided at an end of the second pin 113.
The installation principle of the utility model is as follows:
1. respectively welding plates into a first telescopic leg welding assembly and a second telescopic leg 2 welding assembly 3 according to pattern requirements;
2. the vertical oil cylinder is arranged in a second telescopic leg welding assembly and is fixed by a first shaft through an elastic check ring;
3. connecting a hydraulic hose with a vertical oil inlet joint and a vertical oil return joint of a horizontal binding oil cylinder;
4. the assembled hydraulic hose and the horizontal binding oil cylinder are arranged in a cavity of the second telescopic leg welding assembly, and a rod head hole is fixed by a pin shaft and a second shaft by an elastic retainer ring;
5. installing a bidirectional hydraulic lock on the bottom end face of a vertical oil cylinder, and fixing the bidirectional hydraulic lock by using an inner hexagonal cylindrical head screw;
6. connecting the other end of the hydraulic hose with a bidirectional hydraulic lock through a transition joint;
7. the well-installed second telescopic leg welding assembly is arranged in a cavity of the first telescopic leg welding assembly and is fixed by a clamping plate, a spring washer and an inner hexagonal cylindrical head screw;
8. fixing the upper sliding block on the upper end face of the first telescopic leg welding assembly by using an inner hexagonal countersunk head screw;
9. the assembled first telescopic leg welding assembly is arranged in a cavity of a base fixed leg box and is fixed by a pin shaft, a flat washer and a cotter pin;
10. the oil inlet and return joints of the horizontal binding oil cylinder are connected with the lower vehicle valve in series by a hard pipe.
In the description of the specification, reference to the description of "one embodiment", "preferably", "an example", "a specific example" or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
By describing the above structures and principles, those skilled in the art will appreciate that the present invention is not limited to the above embodiments, and that modifications and substitutions based on the known art are within the scope of the present invention as defined by the appended claims.
Claims (8)
1. The utility model provides a flexible afterbody strutting arrangement of doublestage for mobile crane, is including installing base fixed leg case (6) at the rear of a vehicle, its characterized in that: the device also comprises a first telescopic leg welding assembly (2), a second telescopic leg welding assembly (3), a horizontal binding oil cylinder (1) and a vertical oil cylinder (4);
the first telescopic leg welding assembly (2) is arranged in the base fixed leg box (6) in a sliding mode and can extend out of the rear end of the base fixed leg box (6);
the second telescopic leg welding assembly (3) is arranged in the first telescopic leg welding assembly (2) in a sliding mode and can extend out of the rear end of the first telescopic leg welding assembly (2);
the horizontal binding oil cylinder (1) is arranged in the first telescopic leg welding assembly (2) and comprises a first hydraulic cylinder (100) and a second hydraulic cylinder (110), and the second hydraulic cylinder (110) is fixedly connected with the first hydraulic cylinder (100) and opposite to the first hydraulic cylinder (100) in direction; a first piston rod (101) of the first hydraulic cylinder (100) is connected with the base fixed leg box (6) through a first joint (102) and is used for driving the first telescopic leg welding assembly (2) to move; a second piston rod (111) of the second hydraulic cylinder (110) is connected with the second telescopic leg welding assembly (3) through a second joint (112) and is used for driving the second telescopic leg welding assembly (3) to move;
the vertical oil cylinder (4) is connected with the rear end of the second telescopic leg welding assembly (3), and the supporting leg end of the vertical oil cylinder (4) can extend out and support the ground.
2. The dual stage telescopic tail support device for truck mounted crane of claim 1, wherein: and a bidirectional hydraulic lock (5) is arranged at the cylinder body end of the vertical oil cylinder (4).
3. The dual stage telescopic tail support device for truck mounted crane of claim 2, wherein: the bidirectional hydraulic lock (5) is connected with one end of a hydraulic hose (52) through a transition joint (51), and the other end of the hydraulic hose (52) is connected with the horizontal binding oil cylinder (1).
4. The dual stage telescopic tail support device for truck mounted crane of claim 2, wherein: the bidirectional hydraulic lock (5) is installed on the bottom side plane of the cylinder body of the vertical oil cylinder (4), and the vertical oil cylinder (4) is fixed on the second telescopic leg welding assembly (3) through the elastic retainer ring (41) for the first shaft.
5. The dual stage telescopic tail support device for truck mounted crane of claim 1, wherein: a first connecting seat (61) is arranged in the base fixing leg box (6); the first joint (102) is connected with the first connecting seat (61) through a first pin shaft (103), and a flat gasket (104) and a split pin (105) are arranged at the end part of the first pin shaft (103).
6. The dual stage telescopic tail support device for truck mounted crane of claim 1, wherein: a second connecting seat (31) is arranged in the second telescopic leg welding assembly (3); the second joint (112) is connected with the second connecting seat (31) through a second pin shaft (113), and an elastic check ring (114) for a second shaft is arranged at the end part of the second pin shaft (113).
7. The dual stage telescopic tail support device for a truck crane of claim 1, wherein: be provided with cardboard (22) in first flexible leg welding assembly (2), first pneumatic cylinder (100) and cardboard (22) fixed connection.
8. The dual stage telescopic tail support device for truck mounted crane of claim 1, wherein: an upper sliding block (21) is arranged on the top surface of the first telescopic leg welding assembly (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220044483.5U CN216638750U (en) | 2022-01-07 | 2022-01-07 | Double-stage telescopic tail supporting device for truck-mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220044483.5U CN216638750U (en) | 2022-01-07 | 2022-01-07 | Double-stage telescopic tail supporting device for truck-mounted crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216638750U true CN216638750U (en) | 2022-05-31 |
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ID=81725751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220044483.5U Active CN216638750U (en) | 2022-01-07 | 2022-01-07 | Double-stage telescopic tail supporting device for truck-mounted crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216638750U (en) |
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2022
- 2022-01-07 CN CN202220044483.5U patent/CN216638750U/en active Active
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