CN211769945U - Folding balance arm supporting device of tower crane - Google Patents
Folding balance arm supporting device of tower crane Download PDFInfo
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- CN211769945U CN211769945U CN202020230294.8U CN202020230294U CN211769945U CN 211769945 U CN211769945 U CN 211769945U CN 202020230294 U CN202020230294 U CN 202020230294U CN 211769945 U CN211769945 U CN 211769945U
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- balance arm
- articulated shaft
- tower crane
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Abstract
The utility model discloses a foldable balance arm strutting arrangement of tower crane belongs to tower crane technical field. The utility model comprises a supporting leg frame consisting of two parallel supporting legs and an inclined brace rod connected between the middle part of each supporting leg and a balance arm; the upper end of landing leg is articulated with the balance arm through articulated shaft I, the one end of diagonal brace passes through articulated shaft II and articulates on the landing leg, and the other end of diagonal brace passes through articulated shaft III and articulates on the balance arm. The utility model is used for arrange the focus position on ground in when conveniently controlling balance arm and upper bracket connection, collapsible in balance arm bottom when not using simultaneously alleviates work load.
Description
Technical Field
The utility model relates to a tower crane balance arm strutting arrangement belongs to tower crane technical field.
Background
At present, a balance arm of a tower crane is connected with an upper support after working when being detached and placed on the ground, and the gravity center of the balance arm leans against the upper support, so that a supporting device is needed to support the balance arm to ensure the gravity center and ensure that the balance arm does not incline when being independently placed on the ground. When the balance arm needs to be supported in the prior art, a mode of welding a supporting device is needed. The welding supporting device has the following defects: when the balance arm is placed on the ground, welding is needed before and after the balance arm is arranged to ensure stability, so that the workload is large, and materials are wasted.
Disclosure of Invention
In order to overcome the shortcoming of the prior art, the utility model provides a foldable balance arm strutting arrangement of tower crane arranges the focus position on ground in when conveniently controlling balance arm and upper bracket connection, and collapsible in balance arm bottom when not using simultaneously alleviates work load.
The utility model discloses a realize through following technical scheme: a tower crane folding balance arm supporting device comprises a supporting leg frame consisting of two parallel supporting legs and an inclined stay bar connected between the middle part of each supporting leg and a balance arm; the upper end of landing leg is articulated with the balance arm through articulated shaft I, the one end of diagonal brace passes through articulated shaft II and articulates on the landing leg, and the other end of diagonal brace passes through articulated shaft III and articulates on the balance arm.
Furthermore, a plurality of cross beams are fixed between the two support legs.
Furthermore, articulated shaft I, articulated shaft II and articulated shaft III adopt removable round pin axle.
Furthermore, the bottom of the supporting leg is provided with a supporting leg bottom plate and a rib plate structure which are contacted with the ground.
Further, the supporting legs and the inclined supporting rods are hinged on the bottom surface of the balance arm.
The utility model has the advantages that: the utility model discloses be convenient for guarantee that balance arm and upper bracket are connected the focus position when arranging the ground in, need not the welding, alleviate work load. And can reduce strutting arrangement occupation space through roll over arm balance arm strutting arrangement, through round pin hub connection more can convenient to detach and folding.
Drawings
The invention will be further explained below with reference to the drawings and examples.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the folding state of the supporting device of the present invention.
In the figure, a hinge shaft I1, a support leg 2, a support leg bottom plate and rib plate structure 2-1, a hinge shaft II 3, an inclined stay bar 4, a hinge shaft III 5, a balance arm 6 and a cross beam 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without developing the creative work belong to the protection scope of the present invention.
Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail but are intended to be part of the specification as appropriate.
The folding balance arm supporting device of the tower crane shown in fig. 1 and 2 comprises a leg frame consisting of two parallel legs 2, wherein the upper part of the leg frame is connected with a balance arm 6, the lower part of the leg frame is fixed on the ground, a diagonal brace 4 is connected between the middle part of each leg 2 and the balance arm 6, and the diagonal brace 4 is used for connecting the balance arm and the legs and controlling the folding of the legs. The upper end of landing leg 2 is articulated with balance arm 6 through articulated shaft I1, the one end of diagonal brace 4 is articulated on landing leg 2 through articulated shaft II 3, and the other end of diagonal brace 4 is articulated on balance arm 6 through articulated shaft III 5.
Furthermore, a plurality of cross beams 7 are fixed between the two supporting legs 2, so that the strength and the linkage of the supporting leg frame are improved.
Furthermore, articulated shaft I1, articulated shaft II 3 and articulated shaft III 5 adopt removable round pin axle, convenient to detach and installation.
Furthermore, the bottom of the supporting leg 2 is provided with a supporting leg bottom plate and a rib plate structure 2-1 which are contacted with the ground, so that the stability is enhanced.
Further, the supporting legs 2 and the inclined supporting rods 4 are hinged on the bottom surface of the balance arm 6, so that installation and support are facilitated.
The utility model discloses theory of operation and working process do: the utility model discloses when balance arm and upper bracket together arrange the ground in, landing leg and diagonal brace should scatter for support balance arm. When only the balance arm is placed on the ground, the folding device can be folded, and the space is reduced.
For support, with reference to fig. 1:
The diagonal brace 4 is connected with the landing leg 2 and the balance arm through a hinge shaft II 3 and a hinge shaft III 5, and is used for transmitting torque and controlling the landing leg 2 to be vertical to the balance arm.
Unsupported, refer to fig. 2:
The one end of diagonal brace 4 is passed through articulated shaft III 5 and is connected at the balance arm, and the other end of diagonal brace 4 is pulled down articulated shaft II 3 and is become the free end, and diagonal brace 4 and landing leg 2 can all counter-clockwise turning accomodate below the balance arm. Referring to fig. 2, the diagonal member 4 is rotated clockwise by about 50 degrees, and then the leg 2 is rotated counterclockwise by about 90 degrees, so that the diagonal member 4 is received in the leg 2 and is fixed by the cross member 7. The inclined strut 4 can be accommodated in the landing leg 2, and the arrangement that the hinge shaft II 3 extends inwards can be adopted, so that the inclined strut 4 and the landing leg 2 are staggered; also can be equipped with the adjustment interval on articulated structure axial of articulated shaft III 5, diagonal brace 4 can be at the horizontal drunkenness of articulated shaft III 5, inwards finely tune the sideslip.
The utility model discloses be convenient for guarantee that balance arm and upper bracket are connected when arranging ground in focus position. The supporting device can reduce the occupied space of the supporting device through the folding arm balance arm supporting device, and is convenient to detach and fold through pin shaft connection.
The above description is only exemplary embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a foldable balance arm strutting arrangement of tower crane which characterized in that: comprises a leg support frame consisting of two parallel legs (2) and a diagonal brace (4) connected between the middle part of each leg (2) and a balance arm (6); the upper end of landing leg (2) is articulated with balance arm (6) through articulated shaft I (1), the one end of diagonal brace (4) is articulated on landing leg (2) through articulated shaft II (3), and the other end of diagonal brace (4) is articulated on balance arm (6) through articulated shaft III (5).
2. The folding balance arm support device of a tower crane according to claim 1, wherein: a plurality of cross beams (7) are fixed between the two supporting legs (2).
3. The folding balance arm support device of a tower crane according to claim 1, wherein: and the articulated shaft I (1), the articulated shaft II (3) and the articulated shaft III (5) adopt detachable pin shafts.
4. The folding balance arm support device of a tower crane according to claim 1, wherein: the bottom of the supporting leg (2) is provided with a supporting leg bottom plate and a rib plate structure (2-1) which are contacted with the ground.
5. The folding balance arm support device of a tower crane according to claim 1, wherein: the supporting legs (2) and the inclined supporting rods (4) are hinged to the bottom surface of the balance arm (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020230294.8U CN211769945U (en) | 2020-02-29 | 2020-02-29 | Folding balance arm supporting device of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020230294.8U CN211769945U (en) | 2020-02-29 | 2020-02-29 | Folding balance arm supporting device of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211769945U true CN211769945U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020230294.8U Active CN211769945U (en) | 2020-02-29 | 2020-02-29 | Folding balance arm supporting device of tower crane |
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| CN (1) | CN211769945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056462A (en) * | 2020-02-29 | 2020-04-24 | 徐州建机工程机械有限公司 | Folding balance arm supporting device of tower crane |
-
2020
- 2020-02-29 CN CN202020230294.8U patent/CN211769945U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056462A (en) * | 2020-02-29 | 2020-04-24 | 徐州建机工程机械有限公司 | Folding balance arm supporting device of tower crane |
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