CN112648340A - Telescopic high-altitude operation vehicle drag chain system - Google Patents
Telescopic high-altitude operation vehicle drag chain system Download PDFInfo
- Publication number
- CN112648340A CN112648340A CN202011638298.0A CN202011638298A CN112648340A CN 112648340 A CN112648340 A CN 112648340A CN 202011638298 A CN202011638298 A CN 202011638298A CN 112648340 A CN112648340 A CN 112648340A
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- Prior art keywords
- drag chain
- arm
- telescopic
- linear reciprocating
- support
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/12—Hauling- or hoisting-chains so called ornamental chains
- F16G13/16—Hauling- or hoisting-chains so called ornamental chains with arrangements for holding electric cables, hoses, or the like
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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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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a telescopic high-altitude operation vehicle drag chain system, which comprises a primary arm and a secondary telescopic arm system, wherein a guide box is arranged on the primary arm, a superposed drag chain is arranged in the guide box, a linear reciprocating mechanism meter moving platform is arranged below the guide box, and the moving platform is fixedly connected with a moving end of the linear reciprocating mechanism and moves parallel relative to a static part; the mobile station is fixedly provided with a reducing support mechanism for supporting the drag chain, and the reducing support mechanism can provide good support for the bending part and the overhead part of the drag chain. The invention belongs to the technical field of drag chain systems, and compared with the prior art, the invention has the advantages that: can prevent the danger from collapsing the waist and has good protection effect.
Description
Technical Field
The invention relates to the technical field of drag chain systems, in particular to a drag chain system of a telescopic overhead working truck.
Background
The telescopic boom of the high-altitude operation vehicle is usually a drag chain device to convey hydraulic power, electrical control signals, an external power supply and the like to an actuating mechanism and a controller on an operating platform at the front end of the boom so as to achieve the aim of operating the high-altitude operation by people.
The existing drag chain system of high-altitude operation equipment adopts an installation form of internally or externally arranging an arm support, and the working principle of the drag chain system is that hydraulic and electric soft circuits enter a connected drag chain through a drag chain guide pipe fixed on a primary arm to bypass a telescopic oil cylinder and pass through the bottom of a secondary telescopic arm. However, due to the working nature of the aerial work vehicle, the drag chain system tends to be long, so that the length of the drag chain arranged in an overlapping manner is longer than that of other working environments, and when the secondary telescopic arm is moved forward, the drag chain is overhead, that is, the upper part of the drag chain does not contact with the lower part of the drag chain in the whole stroke. Because the hydraulic pipeline is arranged in the drag chain, the overhead stress is uneven, and the front section of the drag chain collapses as shown in figure 1, namely the dangerous waist collapse is generated. And the angle of the hydraulic pipeline at the turning part of the drag chain is the minimum, the stress is overlarge, and the hydraulic pipeline is easy to break.
Disclosure of Invention
The invention aims to overcome the technical defects and provide a telescopic high-altitude operation vehicle drag chain system which can prevent dangerous waist collapse and has excellent protection effect.
In order to achieve the purpose, the invention adopts the technical scheme that: the design provides a telescopic high-altitude operation vehicle drag chain system, which comprises a primary arm, wherein a secondary telescopic arm for stretching is nested in the primary arm, a guide box is fixedly arranged on the outer side of the primary arm along an arm body, a drag chain which is arranged in an opposite-overlapping mode is arranged in the guide box, the front end of the drag chain is fixedly connected with the guide box, the tail end of the drag chain is hinged with the secondary telescopic arm, the drag chain comprises a static part, a bending part and an overhead part, the static part is located in the guide box, the bending part is located at a circuitous part, the overhead part is located above the static part, the drag chain further comprises a linear reciprocating mechanism, a moving platform, a variable-diameter supporting mechanism and a controller, the linear reciprocating mechanism is fixedly arranged outside the guide box, and the moving platform is fixedly connected with a moving end of the linear reciprocating mechanism and moves in parallel relative to the;
the reducing support mechanism comprises a main support, a plurality of telescopic support rods and a plurality of elastic sheets, the main support is fixedly connected with the mobile station, the support rods are fixedly arranged on the main support and are all positioned in the bent parts on the inner side of the drag chain, and the elastic sheets are fixedly arranged at the movable ends of the support rods and are respectively abutted against the static parts, the bent parts and the empty parts of the drag chain;
the controller is electrically connected with the linear reciprocating mechanism and the supporting rod.
Furthermore, a guide ring for guiding the drag chain is arranged at the free end of the main-stage arm, and the guide ring is connected with the drag chain in a sliding manner.
Furthermore, one side of the guide box, which is close to the mobile station, is provided with a plurality of travel switches for detecting the position of the mobile station, and the travel switches are all electrically connected with the controller and are sequentially arranged along the moving direction of the mobile station.
Further, the linear reciprocating mechanism is a synchronous belt platform pair or a ball screw nut pair driven by a stepping motor.
Furthermore, the support rod is an electric push rod or a telescopic hydraulic cylinder.
After adopting the structure, compared with the prior art, the invention has the advantages that: the invention provides a drag chain system of a telescopic overhead working truck, which is provided with a reducing support mechanism capable of supporting a drag chain, wherein the reducing support mechanism can support the overhead part of the drag chain and can change the diameter of the drag chain, so that waist collapse is prevented; reducing supporting mechanism is by the drive motion of straight reciprocating mechanism, consequently can follow the motion of tow chain and fix a position to for the kink of tow chain provides good support protection, but the buffering is strikeed when the kink atress, thereby protects the safety of inside hydraulic line and circuit.
Drawings
Fig. 1 is a schematic illustration of the dangerous collapse of a tow chain system of a telescopic aerial lift truck according to the present invention.
Fig. 2 is a front view of a telescopic aerial cage tow chain system of the present invention.
Fig. 3 is a partial structure schematic diagram of a drag chain system of the telescopic aerial work platform truck.
Fig. 4 is a schematic use diagram of a drag chain system of the telescopic aerial platform truck of the present invention.
As shown in the figure: 1. the secondary arm, 2, the flexible arm of secondary, 3, the direction box, 31, the connecting seat, 4, the tow chain, 41, static portion, 42, kink, 43, overhead portion, 5, straight reciprocating mechanism, 51, step motor, 52, synchronous belt, 53, belt pulley, 54, follow driving wheel, 6, mobile station, 7, reducing supporting mechanism, 71, the main support, 72, bracing piece, 73, the flexure strip, 8, the controller, 9, the guide ring, 10, travel switch.
Detailed Description
The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention, and the present invention is further described with reference to the accompanying drawings and embodiments.
Example 1, see FIGS. 1-4: the invention relates to a telescopic high-altitude operation vehicle drag chain system structure, which comprises a primary arm 1, wherein a secondary telescopic arm 2 for stretching is embedded in the primary arm 1 in a sleeved mode, the primary arm 1 and the secondary telescopic arm 2 are driven by a hydraulic system, a guide box 3 is fixedly arranged on the outer side of the primary arm 1 along an arm body, guides and is used for placing a drag chain 4 and provides support for the drag chain 4, and specifically, the guide box 3 is in the shape of a through groove with an opening in the upper surface and is welded and fixed with the primary arm 1 through a connecting seat 31;
a drag chain 4 which is arranged in a folded manner is arranged in the guide box 3, an oil pipe and a cable of the hydraulic system are arranged in the drag chain 4, the front end of the drag chain 4 is fixedly connected with the guide box 3, and the tail end of the drag chain is hinged with the secondary telescopic arm 2, specifically, the head section of the foremost end of the drag chain 4 is fixed with one end of the guide box 3, which is positioned at the free end of the primary arm 1, the drag chain 4 is laid in the guide box 3 and is bent and folded at the moving end of the primary arm 1 to form a structure, the structure reversely extends to the free end of the primary arm 1 and extends to the position of the secondary telescopic arm 2, the tail section of the secondary telescopic arm is hinged with the secondary telescopic arm 2, and the oil pipe is connected with the secondary telescopic arm 2, so that the drag chain 4 can be divided into a static part 41 which is positioned in the guide box 3, a bending part 42 which is arranged at a circuit;
the guide box comprises a guide box 3, a linear reciprocating mechanism 5, a moving platform 6, a reducing support mechanism 7 and a controller 8, wherein the linear reciprocating mechanism 5 is fixedly arranged outside the guide box 3, and the moving platform 6 is fixedly connected with a moving end of the linear reciprocating mechanism 5 and moves in parallel relative to a static part 41;
the diameter-variable supporting mechanism 7 is used for supporting the drag chain 4, and comprises a main support 71, three telescopic supporting rods 72 and three elastic pieces 73, wherein the main support 71 is fixedly connected with the moving platform 6, the three supporting rods 72 are fixedly arranged on the main support 71 and are all positioned in the bending part 42 on the inner side of the drag chain 4, the supporting rods 72 are all obliquely arranged with the guide box 3 and respectively extend towards two corners of the drag chain 4 and the connection part of the bending part and the overhead part 43, the elastic pieces 73 are fixedly arranged at the movable ends of the supporting rods 72 and respectively abut against the static part 41, the bending part 42 and the overhead part 43 of the drag chain 4, and particularly, the elastic pieces 73 are plastic plates with each other and can absorb certain deformation and impact;
the controller 8 is electrically connected with the linear reciprocating mechanism 5 and the supporting rod 72, the controller 8 controls the linear reciprocating mechanism 5 and the supporting rod 72 to move, automatic diameter changing of the diameter changing supporting mechanism 7 is achieved, and specifically, the controller 8 is a PLC (programmable logic controller) or a microcomputer.
The free end of the primary arm 1 is provided with a guide ring 9 for guiding the drag chain 4, the guide ring 9 is connected with the drag chain 4 in a sliding mode, the guide ring 9 is of an annular structure or a roller structure, the inner diameter of the guide ring 9 is larger than the diameter of the drag chain 4, and the drag chain 4 is prevented from deviating.
One side of the guide box 3 close to the mobile station 6 is provided with a travel switch 10 for detecting the position of the mobile station 6, the travel switches 10 are all electrically connected to the controller 8 and are sequentially arranged along the moving direction of the mobile station 6, in this embodiment, 5 travel switches 10 are provided, the travel switches 10 are used for detecting whether the mobile station 6 and the bending part 42 of the drag chain 4 move simultaneously, and the auxiliary controller 8 controls the support rod 72.
In this embodiment, the support rod 72 is an electric push rod, and the electric push rod realizes the extension and retraction of the push rod part at the front end through a motor carried by the electric push rod in the form of a worm gear, a rack gear or the like, so that the weight is light, and the structural stability is strong; the linear reciprocating mechanism 5 is a synchronous belt platform pair driven by a step motor, and specifically comprises a step motor 51, a synchronous belt 52, a belt pulley 53 and a driven pulley 54, the step motor 51 is fixed on the guide box 3, the driven pulley 54 is rotatably fixed on the guide box 3, the belt pulley 53 is installed on an output shaft of the step motor 51, the synchronous belt 52 is installed on the belt pulley 53 and the driven pulley 54, and the synchronous belt 52 is a toothed belt, so that the mobile station 6 can be fixed by clamping the synchronous belt 52.
In a specific use process, firstly, a simulation program or actual observation can be made, so that the danger of waist collapse caused by the movement of the tow chain 4 at the secondary telescopic arm 2 is obtained, at the moment, the length of the support rod 72 is preset, the support rod can be expanded in the bent part 42 and completely fills a gap between the overhead part 43 and the static part 41, stable support filling is realized, and the travel switch 10 is installed at the position; in the operation process of the system, the linear reciprocating motion stepping motor 51 and the secondary telescopic arm 2 are synchronous in moving speed and position, when the towline 4 extends forwards to the dangerous waist collapse, the mobile station 6 can touch the travel switch 10, and at the moment, the support rod 72 extends to provide support for the towline 4, so that the dangerous waist collapse is prevented.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a flexible high altitude construction car tow chain system, includes primary arm (1), embedded cover in primary arm (1) is equipped with secondary flexible arm (2) that are used for flexible, the outside of primary arm (1) is followed the arm body and is fixed to be equipped with direction box (3), be provided with tow chain (4) to folding the setting in direction box (3), the front end fixed connection of tow chain (4) direction box (3), and terminal articulated secondary flexible arm (2), tow chain (4) are including static portion (41) that is located direction box (3), kink (42) of circuitous department and overhead portion (43) that are located the sky of static portion (41), its characterized in that:
the guide box is characterized by further comprising a linear reciprocating mechanism (5), a moving platform (6), a reducing support mechanism (7) and a controller (8), wherein the linear reciprocating mechanism (5) is fixedly arranged outside the guide box (3), and the moving platform (6) is fixedly connected with a moving end of the linear reciprocating mechanism (5) and moves in parallel relative to the static part (41);
the reducing support mechanism (7) comprises a main support (71), a plurality of telescopic support rods (72) and a plurality of elastic sheets (73), the main support (71) is fixedly connected with the mobile station (6), the support rods (72) are fixedly arranged on the main support (71) and are all positioned in the bent parts (42) on the inner side of the drag chain (4), and the elastic sheets (73) are fixedly arranged at the movable ends of the support rods (72) and are respectively abutted against the static parts (41), the bent parts (42) and the overhead parts (43) of the drag chain (4);
the controller (8) is electrically connected with the linear reciprocating mechanism (5) and the support rod (72).
2. The telescopic aerial lift truck tow chain system of claim 1, wherein: the free end of the main-stage arm (1) is provided with a guide ring (9) used for guiding the drag chain (4), and the guide ring (9) is connected with the drag chain (4) in a sliding mode.
3. The telescopic aerial lift truck tow chain system of claim 1, wherein: one side of the guide box (3) close to the mobile station (6) is provided with a plurality of travel switches (10) used for detecting the position of the mobile station (6), and the travel switches (10) are all electrically connected with the controller (8).
4. The telescopic aerial lift truck tow chain system of claim 1, wherein: the linear reciprocating mechanism (5) is a synchronous belt platform pair or a ball screw nut pair driven by a step motor.
5. The telescopic aerial lift truck tow chain system of claim 1, wherein: the support rod (72) is an electric push rod or a telescopic hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011638298.0A CN112648340A (en) | 2020-12-31 | 2020-12-31 | Telescopic high-altitude operation vehicle drag chain system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011638298.0A CN112648340A (en) | 2020-12-31 | 2020-12-31 | Telescopic high-altitude operation vehicle drag chain system |
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| Publication Number | Publication Date |
|---|---|
| CN112648340A true CN112648340A (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011638298.0A Pending CN112648340A (en) | 2020-12-31 | 2020-12-31 | Telescopic high-altitude operation vehicle drag chain system |
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| Country | Link |
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| CN (1) | CN112648340A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802991A (en) * | 2021-10-21 | 2021-12-17 | 江苏德航工程机械装备有限公司 | Automatic folding device of girder |
| CN114877023A (en) * | 2022-04-15 | 2022-08-09 | 长沙中联重科环境产业有限公司 | Telescopic arm type drag chain structure |
-
2020
- 2020-12-31 CN CN202011638298.0A patent/CN112648340A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802991A (en) * | 2021-10-21 | 2021-12-17 | 江苏德航工程机械装备有限公司 | Automatic folding device of girder |
| CN113802991B (en) * | 2021-10-21 | 2023-09-26 | 江苏德航工程机械装备有限公司 | Automatic folding device of girder |
| CN114877023A (en) * | 2022-04-15 | 2022-08-09 | 长沙中联重科环境产业有限公司 | Telescopic arm type drag chain structure |
| CN114877023B (en) * | 2022-04-15 | 2023-05-02 | 长沙中联重科环境产业有限公司 | Telescopic arm type drag chain structure |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230315 Address after: 221116 No. 8 Minjiang Road, Xuzhou High tech Industrial Development Zone, Xuzhou City, Jiangsu Province Applicant after: XUZHOU GAILI ENGINEERING MACHINERY Co.,Ltd. Address before: Room 2-158, building 7, Xuzhou Software Park, no.6, Software Park Road, Quanshan District, Xuzhou City, Jiangsu Province, 221000 Applicant before: Xuzhou Yaheng Construction Machinery Technology Co.,Ltd. |
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