CN113307196B - Bracket suitable for high-altitude operation - Google Patents
Bracket suitable for high-altitude operation Download PDFInfo
- Publication number
- CN113307196B CN113307196B CN202110509373.1A CN202110509373A CN113307196B CN 113307196 B CN113307196 B CN 113307196B CN 202110509373 A CN202110509373 A CN 202110509373A CN 113307196 B CN113307196 B CN 113307196B
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- side plate
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- supporting frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
- B66F11/046—Working platforms suspended from booms of the telescoping type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a bracket suitable for high-altitude operation, which comprises a first side plate arranged on one group of opposite sides and a second side plate arranged on the other group of opposite sides, wherein the second side plate is vertically connected with the first side plate to form a lateral supporting frame body in a surrounding way, the cross section of the supporting frame body is gradually reduced from top to bottom, and the bracket also comprises a supporting platform at the top end; the first side plate is continuously bent inwards twice from top to bottom through a bending line A and a bending line B to divide the first side plate into three sections, and the distance between the first side plates is gradually reduced from the first section A to the first section C; the position of the second side plate corresponding to the bending line A is bent inwards through the bending line C to fold the second side plate into two sections, namely a second section A and a second section B; the second section A is opposite to the first section A, and the second section B is opposite to the first section B. The bracket structure can effectively solve the design contradiction between the requirement of light weight and the improvement of rigidity and strength through reasonable design, and ensures the operation safety and stability of the whole vehicle.
Description
Technical Field
The invention belongs to the field of engineering machinery vehicles, and particularly relates to a bracket suitable for high-altitude operation.
Background
An overhead working truck (called high-altitude truck for short) is a special engineering vehicle for transporting workers and working equipment to a specified height for operation. The bracket is a key part for connecting the operation arm and the operation platform, transmits the operation load on the operation platform to the operation arm and finally to the lower vehicle, and ensures the safety and stability of the high-altitude vehicle in the operation process. For the special operation vehicle, the structure has good rigidity and strength and light weight, and is an important performance index of the product.
The existing high-altitude vehicle bracket adopts a plurality of plate structures to be welded into a whole, and bolt holes are arranged at the upper end of the bracket and are used for being connected with a slewing mechanism and an operation platform. The lower end is provided with a hinge hole for connecting the telescopic arm and the upper leveling cylinder. The bracket structure is required to have enough strength and rigidity, so that the rigidity of the whole vehicle is ensured to meet the operation requirement. At present, the method of increasing the thickness of the plate is generally adopted to improve the rigidity and the strength of the bracket structure.
Because the bracket is positioned at the arm head of the working arm of the overhead traveling crane, the increase of the dead weight of the bracket not only can lead the whole crane to be overweight, but also can influence the stability of the whole crane. When the work arm is fully extended, the dead weight of the bracket can generate a large moment on the work arm, wherein the moment is the largest under the horizontal working condition. Particularly, the high-altitude vehicle adopting the ultra-thin and ultra-light operation arm body has the advantages that the stress of the arm body structure is increased more easily due to the increase of the moment, and even the condition of local deformation failure is caused.
Disclosure of Invention
In view of the above problems, the present invention provides a bracket suitable for high-altitude operation.
The technical purpose is achieved, the technical effect is achieved, and the invention is realized through the following technical scheme:
a bracket suitable for high-altitude operation comprises a first side plate arranged on one group of opposite sides and a second side plate arranged on the other group of opposite sides, wherein the second side plate is vertically connected with the first side plate to form a lateral supporting frame body in an enclosing manner, the cross section of the supporting frame body is gradually reduced from top to bottom, and the bracket also comprises a supporting platform welded at the top end of the supporting frame body;
the first side plate is continuously bent inwards twice from top to bottom through a bending line A and a bending line B to divide the first side plate into three sections, namely a first section A, a first section B and a first section C, and the distance between the first side plates is gradually reduced from the first section A to the first section C;
the position of the second side plate corresponding to the bending line A is bent inwards through a bending line C to fold the second side plate into two sections, namely a second section A and a second section B; the second section A is opposite to the first section A, and the second section B is opposite to the first section B.
As a further improvement of the invention, the support platform further comprises a reinforcing rib, the reinforcing rib is a right-angled triangle with an arc-shaped bevel edge, the reinforcing rib is arranged at a position corresponding to the central line of the support platform, and two right-angled edges of the reinforcing rib are respectively connected with the support platform and the support frame body.
As a further improvement of the invention, the supporting frame further comprises a plurality of reinforcing plates arranged inside the supporting frame body, and two ends of each reinforcing plate are connected with the first side plates on two sides.
As a further improvement of the present invention, the first section a is a rectangle, and the edge lines on both sides of the first section B and the first section C are curved lines; wherein; the arc B1 on the right side and the arc B2 on the left side of the first section B are both outward-curved arcs, and the arc C1 on the right side and the arc C2 on the left side of the first section C are both rightward-curved arcs.
As a further improvement of the present invention, the arc B1 and the arc C1 are connected as a continuously changing curve, and the arc B2 and the arc C2 are connected as an S-shape.
As a further improvement of the present invention, the curvature of the arc B2 is greater than the curvature of the arc B1, and the arc length of the arc B2 is greater than the arc length of the arc B1; the curvature of the arc C2 is greater than the curvature of the arc C1, and the arc length of the arc C2 is less than the arc length of the C1.
As a further improvement of the present invention, the folding line B is inclined from the left side to the right side at an angle obliquely upward.
As a further improvement of the present invention, a first axle sleeve hole is formed in the bottom end position of the first section B of the first side plate, and a hole center of the first axle sleeve hole is consistent with a position of a circle center corresponding to the arc line B2.
As a further improvement of the present invention, the bottom end of the first section C is arc-shaped, and a second shaft sleeve hole is formed at a position corresponding to the bottom end.
As a further improvement of the invention, a first hollow hole is symmetrically formed on the first side plate at the position of the first section a by taking a vertical plane where the center line of the supporting platform is located as a symmetric plane; or the second side plate is positioned at the second section A, and a second hollow hole is symmetrically formed by taking the vertical plane where the center line of the supporting platform is positioned as a symmetrical plane.
The invention has the beneficial effects that: the bracket is formed by welding a few plate structures, and the bracket structure is reasonably designed, so that the rigidity and the strength of the bracket are ensured to be high on the premise of lightness, the design contradiction between the requirement of structural lightweight and the improvement of rigidity and strength can be effectively solved, and the operation safety and the stability of the whole vehicle are ensured.
Drawings
FIG. 1 is a schematic structural view of an aerial cage;
FIG. 2 is a front view of a bracket designed according to the present invention;
FIG. 3 is a left side view of a bracket designed according to the present invention;
FIG. 4 is a top view of a bracket designed according to the present invention;
FIG. 5 is an isometric view of a bracket designed according to this invention;
FIG. 6 is an isometric view of a bracket designed according to this invention;
FIG. 7 is a front view of the first side panel;
FIG. 8 is a front view of the second side plate;
FIG. 9 is a front view of the reinforcing bar;
wherein: 1-bracket, 10-supporting platform, 11-first side plate, 11_ 01-bending line A, 11_ 02-bending line B, 11_ 1-first section A, 11_ 2-first section B, 11_ 3-first section C, 11_ 4-first hollowed-out hole, 11_ 5-first shaft sleeve hole, 11_ 6-second shaft sleeve hole, 12-second side plate, 12_ 01-bending line C, 12_ 1-second section A, 12_ 2-second section B, 12_ 4-second hollowed-out hole, 13-reinforcing rib, 14-reinforcing plate, 15-shaft sleeve, 2-telescopic arm and 3-working platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
For convenience of description, the terms of orientation such as "upper", "lower", "left" and "right" written in the present specification are described based on the orientation shown in the drawings, but are not limited to an absolutely fixed positional relationship.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
In order to obtain a stable and light bracket 1, the specific structure of the bracket 1 designed by the invention is shown as 2-9, in order to obtain the bracket 1 with the advantages of high-altitude operation vehicle structure shown as figure 1 and bracket 1 improved by the invention at the position of the connecting point of the telescopic arm 2 and the operation platform 3.
The bracket for high-altitude operation designed by the invention is a symmetrical mechanism, and comprises a first side plate 11 arranged on one group of opposite sides and a second side plate 12 arranged on the other group of opposite sides, wherein the second side plate 12 is vertically connected with the first side plates 11 on the two sides to form a lateral supporting frame body, and the bracket also comprises a supporting platform 10 welded at the top end of the supporting frame body, so that the main structure of the bracket is formed. A plurality of stiffener plates are then provided inside and outside the body structure to improve the stability of the bracket structure. For example, a reinforcing rib 13 is arranged at the outside of the supporting frame body and below the supporting platform 10 at the right-angle joint between the two, and a plurality of reinforcing plates 14 are arranged inside the supporting frame body and welded with the first side plates 11 at two sides. In addition, the connection of all parts in the bracket is completed in a welding mode, so that the bracket with light weight can be ensured.
Further, in order to ensure the support strength of the bracket and combine the stress characteristics of the bracket, the structure of the bracket is as follows:
the whole structure of the supporting frame body is that the cross section of the supporting frame body is gradually reduced from top to bottom, and the size of the supporting platform 10 is larger than that of the upper end opening end of the supporting frame body.
The first side plate 11, which constitutes the most important structural member of the support frame: the first side plate 11 is bent inwards twice from top to bottom through a bending line A11_01 and a bending line B11_02 to be divided into three sections, namely a first section A11_1, a first section B11_2 and a first section C11_3, and the distance between the first side plates 11 is gradually reduced from the first section A11_1 to the first section C11_3 so as to meet the requirement of connection with the upper working platform 3 and the lower telescopic arm 2.
In order to effectively avoid the stress concentration phenomenon, the sections of the first side plate 11 are designed such that the first section a11_1 is designed to be rectangular, and edge lines on both sides of the first section B11_2 and the first section C11_3 are designed to be smoothly transitioned curves.
Wherein; the arc B1 at the right side and the arc B2 at the left side of the first section B11_2 are both outward-curved arcs, and the arc C1 at the right side and the arc C2 at the left side of the first section C11_3 are both rightward-curved arcs. After the connection, the arc line B1 and the arc line C1 are connected as a continuously changing curve, and the arc line B2 and the arc line C2 are connected as an S-shape. Meanwhile, the curvature of the arc B2 is greater than that of the arc B1, and the arc length of the arc B2 is greater than that of the arc B1; the curvature of the arc C2 is greater than the curvature of the arc C1, and the arc length of the arc C2 is less than the arc length of the C1.
Accordingly, when the first side plate 11 is manufactured, the fold line B is inclined at an angle obliquely upward from the left side to the right side.
Correspondingly, the shape of the second side plate 12 is adjusted according to the structure of the first side edge, as shown in fig. 8, the position corresponding to the bending line a11_01 is bent inward via a bending line C12_01 to fold the second side plate 12 into two sections, namely a second section a12_1 and a second section B12_ 2; the second section A12_1 is located opposite to the first section A11_1, and the second section B12_2 is located opposite to the first section B11_ 2. And because the curve shape of the edge line at both sides of the first side edge is different, the shape of the second side plate 12 at both sides is also different, mainly the length of the second section B12_2 is different, the length of the second section B12_2 of the second side plate 12 at the left side is the same as the arc length of the arc line B2, and the length of the second section B12_2 of the second side plate 12 at the right side is the same as the arc length of the arc line B1.
In addition, the bending line a, the bending line B and the bending line C are actually two parallel folding lines to form an inward transition folding line with an angle greater than 90 degrees, and a trapezoidal transition surface is formed in the bending area to avoid a stress concentration point.
The structure of the reinforcing rib 13 shown in fig. 9 is an arc-shaped right-angled triangle, the reinforcing rib 13 is arranged at a position corresponding to the central line of the supporting platform 10, and two right-angled sides of the reinforcing rib 13 are respectively connected with the supporting platform 10 and the supporting frame.
The first side plate 11 is provided with a first shaft sleeve hole 11_5 at the bottom end position of the first section B11_2, and the hole center of the first shaft sleeve hole 11_5 is consistent with the position of the circle center corresponding to the arc line B2, so as to play a role in reinforcing and connecting the first side plates 11 at two sides, and simultaneously adjust the accepting center of gravity of the bracket to be concentrated on the shaft sleeve connected with the position of the first shaft sleeve hole 11_ 5. The bottom end of the first section C11_3 is arc-shaped, and a second shaft sleeve hole 11_6 is formed in the position corresponding to the bottom end and used for being connected with the telescopic arm 2. The first shaft sleeve hole 11_5 and the second shaft sleeve hole 11_6 are sleeved with shaft sleeves 15.
In addition, in order to further reduce the mass of the bracket, a first hollowed hole 11_4 is formed in the first side plate 11 at the position of the first section a11_1, and is symmetrical to a vertical plane where the center line of the supporting platform 10 is located; or the second side plate 12 is located at the second section a12_1, and a second hollow hole 12_4 is formed symmetrically with respect to a vertical plane where the center line of the supporting platform 10 is located. The positions and the sizes of the two hollow holes are kept away from a stress concentration area, and the strength of the bracket cannot be negatively influenced.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A bracket suitable for high altitude construction which characterized in that: the supporting frame comprises a first side plate arranged on one group of opposite sides and a second side plate arranged on the other group of opposite sides, wherein the second side plate is vertically connected with the first side plate to form a lateral supporting frame body in an enclosing manner, the cross section of the supporting frame body is gradually reduced from top to bottom, and the supporting frame also comprises a supporting platform welded at the top end of the supporting frame body;
the first side plate is continuously bent inwards twice from top to bottom through a bending line A and a bending line B to divide the first side plate into three sections, namely a first section A, a first section B and a first section C, and the distance between the first side plates is gradually reduced from the first section A to the first section C;
the position of the second side plate corresponding to the bending line A is bent inwards through a bending line C to fold the second side plate into two sections, namely a second section A and a second section B; the second section A is opposite to the first section A in position, and the second section B is opposite to the first section B in position;
the first section A is a rectangle, and edge lines on two sides of the first section B and the first section C are curves;
wherein; the arc B1 on the right side and the arc B2 on the left side of the first section B are both outward-curved arcs, and the arc C1 on the right side and the arc C2 on the left side of the first section C are both rightward-curved arcs.
2. A support for use in high altitude operations as claimed in claim 1, wherein: still include the strengthening rib, the strengthening rib is that hypotenuse is the right triangle of arc, the strengthening rib setting is corresponding to the position of supporting platform central line, two right-angle sides of strengthening rib respectively with supporting platform with braced frame connects.
3. A support for use in high altitude operations as claimed in claim 1, wherein: the supporting frame further comprises a plurality of reinforcing plates arranged inside the supporting frame body, and two ends of each reinforcing plate are connected with the first side plates on two sides.
4. A support for use in high altitude operations as claimed in claim 1, wherein: the arc line B1 and the arc line C1 are connected as a continuously changing curve, and the arc line B2 and the arc line C2 are connected as an S-shape.
5. A support for use in high altitude operations as claimed in claim 4, wherein:
the curvature of the arc B2 is greater than the curvature of the arc B1, and the arc length of the arc B2 is greater than the arc length of the arc B1;
the curvature of the arc C2 is greater than the curvature of the arc C1, and the arc length of the arc C2 is less than the arc length of the C1.
6. A support for use in high altitude operations as claimed in claim 5, wherein: the fold line B is inclined from the left side to the right side at an angle obliquely upward.
7. A support for use in high altitude operations as claimed in claim 5, wherein: the first side plate is provided with a first shaft sleeve hole at the bottom end of the first section B, and the hole center of the first shaft sleeve hole is consistent with the position of the circle center corresponding to the arc line B2.
8. A support for use in high altitude operations as claimed in claim 1, wherein: the bottom end of the first section C is arc-shaped, and a second shaft sleeve hole is formed in the position corresponding to the bottom end.
9. A support for use in high altitude operations as claimed in claim 1, wherein:
the first side plate is positioned at the first section A, and first hollowed-out holes are symmetrically formed by taking a vertical plane where the center line of the supporting platform is positioned as a symmetry plane;
or
And the second side plate is positioned at the second section A, and a second hollow hole is symmetrically formed by taking a vertical plane where the center line of the supporting platform is positioned as a symmetrical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509373.1A CN113307196B (en) | 2021-05-11 | 2021-05-11 | Bracket suitable for high-altitude operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509373.1A CN113307196B (en) | 2021-05-11 | 2021-05-11 | Bracket suitable for high-altitude operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113307196A CN113307196A (en) | 2021-08-27 |
| CN113307196B true CN113307196B (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110509373.1A Active CN113307196B (en) | 2021-05-11 | 2021-05-11 | Bracket suitable for high-altitude operation |
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| CN (1) | CN113307196B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202912646U (en) * | 2012-11-07 | 2013-05-01 | 武汉孚曼机械有限公司 | Novel structure of octagon aerial work platform arm frame |
| CN204549986U (en) * | 2015-02-05 | 2015-08-12 | 徐工集团工程机械股份有限公司 | Jib hinged seat and crank type aerial working platform |
| CN207483290U (en) * | 2017-10-30 | 2018-06-12 | 江阴市绿松机械有限公司 | Rotary connector is used on a kind of aerial work platform |
| CN209507515U (en) * | 2018-12-29 | 2019-10-18 | 徐州海伦哲特种车辆有限公司 | A kind of high-altitude operation vehicle with three-level insulating segment |
| CN210656014U (en) * | 2019-06-19 | 2020-06-02 | 美通重工有限公司 | Work basket bracket and aerial work platform work basket |
| CN112093737A (en) * | 2020-09-30 | 2020-12-18 | 湖南星邦智能装备股份有限公司 | Crank arm and crank arm type aerial work platform |
-
2021
- 2021-05-11 CN CN202110509373.1A patent/CN113307196B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202912646U (en) * | 2012-11-07 | 2013-05-01 | 武汉孚曼机械有限公司 | Novel structure of octagon aerial work platform arm frame |
| CN204549986U (en) * | 2015-02-05 | 2015-08-12 | 徐工集团工程机械股份有限公司 | Jib hinged seat and crank type aerial working platform |
| CN207483290U (en) * | 2017-10-30 | 2018-06-12 | 江阴市绿松机械有限公司 | Rotary connector is used on a kind of aerial work platform |
| CN209507515U (en) * | 2018-12-29 | 2019-10-18 | 徐州海伦哲特种车辆有限公司 | A kind of high-altitude operation vehicle with three-level insulating segment |
| CN210656014U (en) * | 2019-06-19 | 2020-06-02 | 美通重工有限公司 | Work basket bracket and aerial work platform work basket |
| CN112093737A (en) * | 2020-09-30 | 2020-12-18 | 湖南星邦智能装备股份有限公司 | Crank arm and crank arm type aerial work platform |
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| Publication number | Publication date |
|---|---|
| CN113307196A (en) | 2021-08-27 |
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