Horizontal supporting leg for crane and crane

Abstract

The utility model discloses a horizontal supporting leg for a crane and the crane. The horizontal supporting leg comprises a fixed supporting leg, a movable supporting leg and a gap adjusting piece, the movable supporting leg can extend out of the fixed supporting leg and can retract into the fixed supporting leg; the gap adjusting parts are columnar, the multiple gap adjusting parts are symmetrically and detachably installed on the left side wall and the right side wall of the movable supporting leg, the gap between the fixed supporting leg and the movable supporting leg is adjusted by adjusting the extending amount of the gap adjusting parts, and therefore it is guaranteed that when the movable supporting leg moves relative to the fixed supporting leg, the gap between the fixed supporting leg and the movable supporting leg is adjusted. And the left-right shaking amount of the movable supporting leg is reduced. The gaps between the left side wall and the right side wall of the movable supporting leg and the inner wall of the fixed supporting leg can be effectively adjusted by arranging the gap adjusting part, so that when the movable supporting leg extends out of the fixed supporting leg, the left-right shaking amplitude of the movable supporting leg can be remarkably reduced, damage to the horizontal supporting leg can be effectively avoided, and the service life of the horizontal supporting leg is prolonged. And the generation of noise can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery and industrial vehicles, in particular to a horizontal outrigger for a crane and a crane. Background Art

[0002] The horizontal outriggers of a crane provide stable support for the crane's lifting operation, balance the crane's center of gravity, and prevent the crane from tipping over. They are an essential part of the crane. The horizontal outriggers of a crane include fixed outriggers and movable outriggers. The movable outriggers can be movably installed in the fixed outriggers. When the crane is lifting, the movable outriggers extend from the fixed outriggers to prop up the crane. When the crane is not in operation, the movable outriggers retract into the fixed outriggers.

[0003] In the prior art, in order to facilitate the assembly of the legs, there must be sufficient clearance between the inner wall of the movable legs and the fixed legs in the vertical and horizontal directions. However, when the clearance is too large, the movable legs will shake significantly when they are extended or retracted, causing friction and collision between the movable legs and the inner wall of the fixed legs, which will not only easily damage the legs, but also generate a lot of noise.

[0004] Therefore, there is an urgent need for an adjusting device to adjust the gap between the movable leg and the inner wall of the fixed leg. Summary of the invention

[0005] In view of this, the utility model provides a horizontal outrigger for a crane, having a gap adjustment member capable of adjusting the gap between the left and right side walls of the movable outrigger and the inner wall of the fixed outrigger, which can effectively reduce the left and right shaking amount of the movable outrigger when extending and retracting.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A horizontal outrigger for a crane, comprising:

[0008] Fixed legs, movable legs and clearance adjusters;

[0009] The movable leg can be extended from the fixed leg and can be retracted into the fixed leg; the gap adjusting piece is columnar, and there are multiple gap adjusting pieces. The multiple gap adjusting pieces are symmetrically and detachably installed on the left and right side walls of the movable leg. By adjusting the extension amount of the gap adjusting piece, the gap between the fixed leg and the movable leg can be adjusted, thereby ensuring that when the movable leg moves relative to the fixed leg, the left and right shaking amount of the movable leg is reduced.

[0010] Preferably, the horizontal support leg for the crane also includes: a mounting seat, the left and right side walls of the movable support leg are provided with mounting through holes, each of the mounting through holes is provided with a mounting seat, the mounting seat is provided with a threaded hole, the gap adjustment member is threadedly connected in the threaded hole, and the gap adjustment member is extended or retracted by adopting threaded adjustment.

[0011] Preferably, the gap adjustment member is divided into a connecting section and a contact section, the connecting section is provided with a thread, and the connecting section is threadedly connected to the threaded hole; the contact section is used to abut against the inner wall of the fixed leg when the movable leg swings left and right.

[0012] Preferably, a nut-shaped flange is provided at the end of the connecting section, and the nut-shaped flange is used to cooperate with a wrench to adjust the extension length of the gap adjustment member or remove the gap adjustment member from the threaded hole.

[0013] Preferably, a groove is provided at the end of the connecting section, and the groove is used to cooperate with a screwdriver so as to adjust the extension length of the gap adjusting member or remove the gap adjusting member from the threaded hole.

[0014] Preferably, the connecting section is made of metal material, and the contact section is made of nylon material.

[0015] Preferably, the gap adjusting member is arranged at the tail end of the movable leg.

[0016] A crane comprises the horizontal outrigger for the crane as described in any one of the above items.

[0017] Compared with the prior art, the present application discloses a horizontal support leg for a crane, which can effectively adjust the gap between the left and right side walls of the movable support leg and the inner wall of the fixed support leg by setting a gap adjusting piece. For example, when the gap between the left and right side walls of the movable support leg and the inner wall of the fixed support leg is too large, the gap between the left and right side walls of the movable support leg and the inner wall of the fixed support leg can be effectively reduced by increasing the extension amount of the gap adjusting piece. In this way, when the movable support leg is extended from the fixed support leg, the amplitude of the left and right swinging of the movable support leg can be significantly reduced, which can not only effectively avoid damage to the horizontal support leg, but also reduce the generation of noise.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a horizontal outrigger for a crane disclosed in an embodiment of the present application;

[0020] Figure 2 yes Figure 1 A partial enlarged view of area A.

[0021] Reference numerals:

[0022] 1. Fix the legs;

[0023] 2. Movable legs; 21. Mounting through holes;

[0024] 3. gap adjustment member; 31. connecting section; 32. contact section; 311. groove;

[0025] 4. Mounting seat; 41. Threaded hole. DETAILED DESCRIPTION

[0026] The utility model discloses a horizontal outrigger for a crane, which comprises a gap adjusting member 3 which can adjust the gap between the left and right side walls of a movable outrigger 2 and the inner wall of a fixed outrigger 1, and can effectively reduce the left and right shaking amount of the movable outrigger 2 when it is extended or retracted.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Reference below Figure 1 and Figure 2 The invention describes a horizontal outrigger for a crane in an embodiment of the utility model.

[0030] like Figure 1 and Figure 2 As shown, an embodiment of the present application discloses a horizontal support leg for a crane, comprising: a fixed support leg 1, a movable support leg 2 and a gap adjusting member 3.

[0031] Among them, the movable leg 2 can be extended from the fixed leg 1 and can be retracted into the fixed leg 1. When the crane is lifting, the movable leg 2 is extended from the fixed leg 1 to support the crane. When the crane is not operating, the movable leg 2 is retracted into the fixed leg 1.

[0032] The gap adjusting member 3 is columnar, and a plurality of gap adjusting members 3 are provided. The plurality of gap adjusting members 3 are symmetrically and detachably installed on the left and right side walls of the movable leg 2. The gap between the fixed leg 1 and the movable leg 2 is adjusted by adjusting the extension amount of the gap adjusting member 3, thereby ensuring that when the movable leg 2 moves relative to the fixed leg 1, the left and right shaking amount of the movable leg 2 is reduced.

[0033] By providing the gap adjusting member 3, the gap between the left and right side walls of the movable leg 2 and the inner wall of the fixed leg 1 can be effectively adjusted. For example, when the gap between the left and right side walls of the movable leg 2 and the inner wall of the fixed leg 1 is too large, the gap between the left and right side walls of the movable leg 2 and the inner wall of the fixed leg 1 can be effectively reduced by increasing the extension amount of the gap adjusting member 3. In this way, when the movable leg 2 is extended from the fixed leg 1, the amplitude of the left and right shaking of the movable leg 2 can be significantly reduced, which can not only effectively avoid damage to the horizontal leg, but also reduce the generation of noise.

[0034] In some embodiments, for example Figure 2 As shown, the horizontal support leg for the crane also includes: a mounting seat 4, a mounting through hole 21 is provided on the left and right side walls of the movable support leg 2, a mounting seat 4 is provided in each mounting through hole 21, a threaded hole 41 is provided on the mounting seat 4, and the gap adjustment member 3 is threadedly connected in the threaded hole 41. The gap adjustment member 3 is extended or retracted by adopting thread adjustment.

[0035] The setting of the mounting seat 4 can facilitate the installation of the gap adjustment member 3 and improve the assembly efficiency. At the same time, the mounting seat 4 can also improve the assembly strength of the gap adjustment member 3. In this way, the gap adjustment member 3 is not easily displaced when it abuts and collides with the inner wall of the fixed leg 1, and the gap size can be kept constant.

[0036] The gap adjusting member 3 is threadedly connected to the mounting seat 4 to adjust the extension amount of the gap adjusting member 3. The threaded adjustment is easy to operate, can effectively shorten the adjustment time, and save time and effort.

[0037] In this embodiment, the gap adjustment member 3 is divided into a connecting section 31 and a contact section 32. The connecting section 31 is provided with threads, and the connecting section 31 is threadedly connected to the threaded hole 41; the contact section 32 is used to abut against the inner wall of the fixed leg 1 when the movable leg 2 swings left and right. The connecting section 31 is made of metal material, and the contact section 32 is made of nylon material.

[0038] The connection section 31 made of metal material has high structural strength and rigidity, can bear large loads without deformation and damage, and can effectively ensure the assembly strength of the gap adjustment member 3. The connection section 31 made of nylon material not only has excellent wear resistance, but also has strong energy absorption capacity, so that the service life of the connection section 31 is significantly extended, and when the connection section 31 abuts and collides with the inner wall of the fixed leg 1, it can effectively absorb the impact, thereby reducing the generation of noise.

[0039] In this embodiment, a nut-shaped flange is provided at the end of the connecting section 31 , and the nut-shaped flange is used to cooperate with a wrench to adjust the extension length of the gap adjusting member 3 or to remove the gap adjusting member 3 from the threaded hole 41 .

[0040] The setting of the nut-shaped flange enables the gap adjustment member 3 to be adjusted by a wrench, further improving the convenience of gap adjustment and effectively saving adjustment time. At the same time, when the gap adjustment member 3 is severely worn and needs to be replaced, the setting of the nut-shaped flange can make the gap adjustment member 3 easier to remove from the mounting seat 4, effectively saving disassembly and assembly time.

[0041] In this embodiment, for example Figure 2 As shown, a groove 311 is provided at the end of the connecting section 31 , and the groove 311 is used to cooperate with a screwdriver so as to adjust the extension length of the gap adjusting member 3 or remove the gap adjusting member 3 from the threaded hole 41 .

[0042] The setting of the groove 311 enables the gap adjustment member 3 to be adjusted by a screwdriver, further improving the convenience of gap adjustment and effectively saving adjustment time. At the same time, when the gap adjustment member 3 is severely worn and needs to be replaced, the setting of the groove 311 can make the gap adjustment member 3 easier to remove from the mounting seat 4, effectively saving disassembly and assembly time.

[0043] In some embodiments, for example Figure 2 As shown, the gap adjusting member 3 is arranged at the tail end of the movable leg 2. In this way, it can be ensured that the gap adjusting member 3 always plays a role during the whole process of the movable leg 2 extending and retracting.

[0044] In addition, the present application also discloses a crane, including the horizontal support legs for the crane disclosed in the above embodiments. Therefore, the crane with the horizontal support legs for the crane has all the above technical effects, which will not be described one by one here.

[0045] Other structures and operations of the horizontal outriggers for the crane and the crane according to the embodiment of the utility model are well known to those skilled in the art and will not be described in detail here.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A horizontal outrigger for a crane, characterized in that: include: A fixed leg, and a movable leg capable of extending from the fixed leg and retracting into the fixed leg; The gap adjusting member is columnar, and a plurality of the gap adjusting members are provided. The plurality of gap adjusting members are symmetrically and detachably mounted on the left and right side walls of the movable leg. The gap between the fixed leg and the movable leg is adjusted by adjusting the extension amount of the gap adjusting member, thereby ensuring that the left and right shaking amount of the movable leg is reduced when the movable leg moves relative to the fixed leg.

2. The horizontal outrigger for a crane according to claim 1, characterized in that: Also includes: The mounting seat is provided with mounting through holes on the left and right side walls of the movable leg, and a mounting seat is provided in each of the mounting through holes. The mounting seat is provided with a threaded hole, and the gap adjustment member is threadedly connected in the threaded hole. The gap adjustment member can be extended or retracted by adopting thread adjustment.

3. The horizontal outrigger for a crane according to claim 2, characterized in that: The gap adjustment member is divided into a connecting section and a contact section. The connecting section is provided with a thread, and the connecting section is threadedly connected to the threaded hole; the contact section is used to abut against the inner wall of the fixed leg when the movable leg swings left and right.

4. The horizontal outrigger for a crane according to claim 3, characterized in that: A nut-shaped flange is provided at the end of the connecting section, and the nut-shaped flange is used to cooperate with a wrench so as to adjust the protruding length of the gap adjusting member or remove the gap adjusting member from the threaded hole.

5. The horizontal outrigger for a crane according to claim 3, characterized in that: The end of the connecting section is provided with a groove, and the groove is used to cooperate with a screwdriver so as to adjust the extension length of the gap adjusting member or remove the gap adjusting member from the threaded hole.

6. The horizontal outrigger for a crane according to claim 3, characterized in that: The connecting section is made of metal material, and the contact section is made of nylon material.

7. The horizontal outrigger for a crane according to claim 1, characterized in that: The gap adjusting member is arranged at the rear end of the movable leg.

8. A crane, characterized in that: The horizontal outrigger for a crane comprises the horizontal outrigger for a crane according to any one of claims 1 to 7.

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