CN214087431U

CN214087431U - Vehicle-mounted crane

Info

Publication number: CN214087431U
Application number: CN202022914232.1U
Authority: CN
Inventors: 何洪波; 朱钦杰; 高战军
Original assignee: Henan Yuhe Crane Co ltd
Current assignee: Henan Yuhe Crane Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-08-31
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a truck-mounted crane, including crane car and preceding automobile body, the crane car rear end is connected with preceding automobile body, preceding automobile body rear end is connected with the back automobile body, still be connected with extension mechanism between preceding automobile body and the back automobile body, back automobile body top is provided with the base, base top intermediate position is provided with the jib loading boom, the jib loading boom extends to the top of crane car front end always, be provided with the jack-up hydraulic stem in the middle of the preceding automobile body top. The utility model has the advantages of the utility model discloses be provided with separable preceding automobile body and back automobile body, in the use, if lifting force is not enough a little, can use extension mechanism, with preceding automobile body and the separation of back automobile body, make whole landing leg space enlarged, can extend the power arm of lever in the jack-up, make the device can obtain bigger lifting force with littleer power, and extension scope and space can be adjusted according to actual conditions, therefore the device has the adjustable length of automobile body separation, can simply the mechanism obtain the advantage of bigger lifting force.

Description

Vehicle-mounted crane

Technical Field

The utility model relates to a hoist technical field especially relates to a truck-mounted crane.

Background

The automobile crane is one kind of crane installed on common or special automobile chassis and has driving cab separated from the crane control cab. The crane has the advantages of good maneuverability and rapid transfer. The defects are that supporting legs are needed during working, the vehicle cannot run under load, and the vehicle is not suitable for working on soft or muddy places. The chassis performance of the automobile crane is equal to that of a lorry with the same total weight of the whole automobile, and the automobile crane meets the technical requirements of road vehicles, so that the automobile crane can pass through various roads without resistance, is the crane type with the largest yield and the most extensive use.

The existing vehicle-mounted crane has certain limitation when in use, the actual lifting capacity of the vehicle-mounted crane is often not completely determined by the lifting force of a winch and a lifting arm, but the gravity structure of the vehicle, especially when hoisting articles at a far position, the change of the gravity center position of the crane is the key for determining the actual hoisting capacity of the vehicle-mounted crane, for this reason, methods such as weighting, supporting legs, lengthening the car body, etc. are generally adopted, but the above methods have respective disadvantages, either have limitations in effect or greatly increase the cost, and cannot temporarily increase the lifting capacity to adapt to the actual requirements of changes, and the angle of the hydraulic ejector rod of jib loading boom and jib loading boom, distance all are less need consume more energy when the jack-up, also have certain influence to the lifting capacity, consequently, need a neotype truck-mounted crane to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a truck-mounted crane possesses the adjustable length of automobile body separation, can obtain bigger lifting force, energy-conservation, advantage that low in manufacturing cost by simple mechanism, and then solves the problem among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the vehicle-mounted crane comprises a crane truck and a front truck body, wherein the rear end of the crane truck is connected with the front truck body, the rear end of the front truck body is connected with a rear truck body, a lengthening mechanism is further connected between the front truck body and the rear truck body, the top of the rear truck body is provided with a base, a crane boom is arranged in the middle of the top of the base and extends to the upper part of the front end of the crane truck, a crane hydraulic rod is arranged in the middle of the top of the front truck body, and the top of the crane hydraulic rod is rotatably connected with one part of the bottom of the crane boom.

Preferably, the lengthening mechanism is composed of a short arm and a long arm, and connecting columns are arranged at two ends of the short arm and two ends of the long arm.

Preferably, the short arm one end is connected with preceding automobile body through the spliced pole and rotates, and long arm one end is passed through the spliced pole and is rotated with the back automobile body, the short arm passes through the connecting plate with the long arm other end and rotates the connection.

Preferably, the connecting column at one end of the short arm penetrates through the connecting plate and is connected with the second hydraulic rod.

Preferably, the front end of the front vehicle body and the rear end of the rear vehicle body are both provided with a telescopic frame, a telescopic rod is arranged in the telescopic frame, and one end of the telescopic rod is provided with a first hydraulic rod.

Preferably, a winch is arranged on one side of the crane boom and fixed to the top of the base.

Preferably, the two lengthening mechanisms are symmetrically arranged and are positioned in grooves formed in the front vehicle body and the rear vehicle body, so that redundant space is not occupied during driving.

Preferably, the front vehicle body and the rear vehicle body are further connected through a fixed connecting mechanism and can be disconnected manually.

(III) advantageous effects

Compared with the prior art, the utility model provides a truck-mounted crane possesses following beneficial effect:

(1) the utility model discloses be provided with separable preceding automobile body and back automobile body, in the use, can prop up the expansion bracket as ordinary truck-mounted crane under the normal condition generally, telescopic link and first hydraulic stem acquire the balance, if lifting force is not enough a little, can use extension mechanism, with preceding automobile body and back automobile body separation, make whole landing leg space enlarged, can extend the power arm of lever in the jack-up, make the device can obtain bigger lifting force with littleer power, and extension scope and space can be adjusted according to actual conditions, and itself just is provided with the second hydraulic stem in the extension mechanism, also can increase the quantity of branch and promote stability, consequently, the device has automobile body separation adjustable length, can simple mechanism obtain the advantage of bigger lifting force.

(2) The utility model discloses with the jack-up hydraulic stem setting automobile body in the front, with terminal and the hoist engine setting of jib loading boom at the rear automobile body for the distance of jack-up hydraulic stem and jib loading boom pivot is elongated, plays to rise the angle bigger, just also makes the jack-up hydraulic stem only need use less power when playing to rise the same weight, has also reduced manufacturing cost in the time of energy saving consumption, therefore the device has energy-conservation, advantage that low in manufacturing cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic top view of a truck-mounted crane according to the present invention;

FIG. 2 is a schematic side view of the truck-mounted crane according to the present invention;

fig. 3 is a schematic structural view of an extension mechanism of the truck-mounted crane provided by the utility model.

Illustration of the drawings:

1. a lift truck; 2. a front vehicle body; 3. a rear body; 4. a cargo boom; 5. a telescopic frame; 6. a telescopic rod; 7. a first hydraulic lever; 8. a lengthening mechanism; 9. a base; 10. a winch; 11. a lifting hydraulic rod; 12. a short arm; 13. connecting columns; 14. a long arm; 15. a connecting plate; 16. and a second hydraulic rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a truck-mounted crane includes a crane car 1 and a front car body 2, the rear end of the crane car 1 is connected with the front car body 2, the rear end of the front car body 2 is connected with a rear car body 3, a lengthening mechanism 8 is further connected between the front car body 2 and the rear car body 3, a base 9 is arranged on the top of the rear car body 3, a boom 4 is arranged in the middle of the top of the base 9, the boom 4 extends above the front end of the crane car 1, a lifting hydraulic rod 11 is arranged in the middle of the top of the front car body 2, the top of the lifting hydraulic rod 11 is rotatably connected with one position of the bottom of the boom 4, the lengthening mechanism 8 can be used for adjusting the length of the car body, and the base 9 can rotate around the rear car body 3.

In one embodiment, the lengthening mechanism 8 is composed of a short arm 12 and a long arm 14, the short arm 12 and the long arm 14 are provided with connecting columns 13 at two ends, and the short arm 12 and the long arm 14 are different in length by only one rotation shaft distance.

In one embodiment, short arm 12 one end is connected with preceding automobile body 2 through spliced pole 13 rotation, long arm 14 one end is passed through spliced pole 13 and is rotated with back automobile body 3, short arm 12 and long arm 14 other end pass through connecting plate 15 rotation and be connected, if the lifting force is a little less than, can use extension mechanism 8, with preceding automobile body 2 with back automobile body 3 separation for whole landing leg space is enlarged, can lengthen the power arm of lever in the jack-up, make the device can obtain bigger lifting force with littleer power, and extension scope and space can be adjusted according to actual conditions.

In one embodiment, the connecting rod 13 at one end of the short arm 12 is connected to a second hydraulic rod 16 through a connecting plate 15, and the second hydraulic rod 16 can increase the number of the struts to improve stability.

In one embodiment, the front end of the front vehicle body 2 and the rear end of the rear vehicle body 3 are both provided with a telescopic frame 5, a telescopic rod 6 is arranged in the telescopic frame 5, one end of the telescopic rod 6 is provided with a first hydraulic rod 7, and the telescopic frame 5, the telescopic rod 6 and the first hydraulic rod 7 can be normally supported to obtain balance as a common truck crane.

In one embodiment, a winch 10 is disposed on one side of the boom 4 fixed to the top of the base 9, and the boom 4, the base 9 and the winch 10 are all conventional mechanisms, which are not described in detail herein.

In one embodiment, two lengthening mechanisms 8 are symmetrically arranged, and the lengthening mechanisms 8 are positioned in grooves formed in the front vehicle body 2 and the rear vehicle body 3, so that the vehicle does not occupy redundant space during driving.

In one embodiment, the front body 2 and the rear body 3 are further connected and disconnected manually through a fixed connection mechanism, the connection mechanism can be a connecting rod and a bolt which are matched and can be connected and disconnected manually, and can also be an automatic telescopic connection mechanism such as a hydraulic rod, the number of the optional structures is more, the existing structures can be adopted, and the structures are not listed, and the specific situation is determined.

The working principle is as follows: the utility model is provided with a front car body 2 and a rear car body 3 which can be separated, in the using process, the telescopic frame 5, the telescopic rod 6 and the first hydraulic rod 7 can be supported to obtain balance under normal conditions like a common vehicle-mounted crane, if the lifting force is a little insufficient, the lengthening mechanism 8 can be used to separate the front car body 2 from the rear car body 3, so that the whole supporting leg space is enlarged, the power arm of the lever in the lifting can be lengthened, the device can obtain larger lifting force with smaller force, the lengthening range and the space can be adjusted according to actual conditions, the lengthening mechanism 8 is internally provided with the second hydraulic rod 16, the number of the supporting rods can be increased to improve the stability, therefore, the device has the advantages of adjustable length for separating the car body and obtaining larger force for the lifting mechanism, meanwhile, the utility model arranges the lifting hydraulic rod 11 at the front car body 2, arranges the tail end of the lifting arm 4 and the hoisting machine 10 at the rear car body 3, the distance between the hoisting hydraulic rod 11 and the rotating shaft of the crane boom 4 is longer, the hoisting angle is larger, the hoisting hydraulic rod 11 only needs to use smaller force when hoisting the same weight, the energy consumption is saved, and the manufacturing cost is reduced, so the device has the advantages of energy conservation and low manufacturing cost.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a vehicle-mounted crane, includes crane truck (1) and preceding automobile body (2), its characterized in that, crane truck (1) rear end is connected with preceding automobile body (2), preceding automobile body (2) rear end is connected with back automobile body (3), still be connected with between preceding automobile body (2) and back automobile body (3) and add long mechanism (8), back automobile body (3) top is provided with base (9), base (9) top intermediate position is provided with jib loading boom (4), jib loading boom (4) extend to the top of crane truck (1) front end always, be provided with in the middle of preceding automobile body (2) top and jack up hydraulic stem (11), jack up hydraulic stem (11) top and crane truck (4) bottom department rotate and be connected.

2. A truck crane according to claim 1, characterized in that the lengthening mechanism (8) is formed by a short arm (12) and a long arm (14), the short arm (12) and the long arm (14) being provided with connecting columns (13) at both ends.

3. A truck-mounted crane according to claim 2, characterized in that one end of the short arm (12) is rotatably connected with the front body (2) through a connecting column (13), one end of the long arm (14) is rotatably connected with the rear body (3) through the connecting column (13), and the other ends of the short arm (12) and the long arm (14) are rotatably connected through a connecting plate (15).

4. A truck crane according to claim 2, characterized in that the connecting column (13) at one end of the short arm (12) is connected to the second hydraulic ram (16) through a connecting plate (15).

5. The truck crane according to claim 1, characterized in that the front end of the front body (2) and the rear end of the rear body (3) are provided with a telescopic frame (5), a telescopic rod (6) is arranged in the telescopic frame (5), and one end of the telescopic rod (6) is provided with a first hydraulic rod (7).

6. A truck-mounted crane according to claim 1, characterized in that the crane boom (4) is provided with a hoist (10) on one side fixed to the top of the base (9).

7. A truck-mounted crane according to claim 1, characterized in that the two lengthening mechanisms (8) are symmetrically arranged, and the lengthening mechanisms (8) are positioned in the grooves formed in the front body (2) and the rear body (3) and do not occupy redundant space when running.

8. A vehicle crane according to claim 1, characterised in that the front body (2) and the rear body (3) are also connectable by means of a telescopically fixed connection or a manually releasable connection.