CN211547410U - Height adjusting device of bridge girder erection machine - Google Patents
Height adjusting device of bridge girder erection machine Download PDFInfo
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- CN211547410U CN211547410U CN202020074932.1U CN202020074932U CN211547410U CN 211547410 U CN211547410 U CN 211547410U CN 202020074932 U CN202020074932 U CN 202020074932U CN 211547410 U CN211547410 U CN 211547410U
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Abstract
A height adjusting device of a bridge girder erection machine comprises an end beam, a cart travelling mechanism and a leg support device, wherein the leg support device comprises two vertically arranged leg support units, a hydraulic cylinder is arranged between the two legs, a cylinder body of the hydraulic cylinder is fixed at the top of the cart travelling mechanism, a locking device is arranged at the bottom of the end beam, and a hydraulic rod of the hydraulic cylinder is connected with the corresponding locking device; the supporting leg unit comprises an upper supporting leg rod and a lower supporting leg sleeve, the top of the upper supporting leg rod is hinged with the end beam, the lower part of the upper supporting leg rod is sleeved in the lower supporting leg sleeve, a plurality of positioning holes are formed in the lower supporting leg sleeve, the positioning holes are arranged at intervals along the length direction of the lower supporting leg sleeve, and a positioning device is arranged at the bottom of the upper supporting leg rod and inserted in the corresponding positioning holes; the positioning device comprises a positioning rod which is inserted in the corresponding positioning hole. The utility model discloses well bridging machine height can be adjusted, increases the adaptation space of bridging machine, and the suitability is good.
Description
Technical Field
The utility model relates to a technical field of bridging machine, concretely relates to high adjusting device of bridging machine.
Background
The bridge girder erection machine is equipment for placing a prefabricated beam piece on a prefabricated pier, belongs to the category of cranes, and has the main function of lifting the beam piece, conveying the beam piece to a position and putting down the beam piece. The bridge erecting machine is different from a common crane in a large sense, the required conditions are harsh, and the bridge erecting machine runs on a beam piece or moves longitudinally. At present, the bridge girder erection machine generally comprises a main girder, a crane trolley is installed on the main girder, end beams are installed at two ends of the main girder, a cart travelling mechanism is arranged below the end beams, supporting legs are arranged between the end beams and the cart travelling mechanism, the top ends of the supporting legs are fixedly connected with the end beams, the bottom ends of the supporting legs are fixedly connected with the cart travelling mechanism, the whole height of the bridge girder erection machine cannot be adjusted, different spaces cannot be adapted easily, and the applicability is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a height adjusting device of frame bridge crane, solves above-mentioned frame bridge crane height and can not adjust, is difficult to adapt to different spaces, the poor technical problem of suitability.
The utility model discloses the technical scheme who takes does:
a height adjusting device of a bridge girder erection machine comprises an end beam, a cart travelling mechanism is arranged below the end beam, a plurality of supporting leg devices are arranged between the end beam and the cart travelling mechanism, the end beam and the cart travelling mechanism are connected through the supporting leg devices, the supporting leg devices corresponding to the two end beams are symmetrically arranged, each supporting leg device comprises two vertically arranged supporting leg units, a hydraulic cylinder is arranged between the two supporting legs, a cylinder body of the hydraulic cylinder is fixed to the top of the cart travelling mechanism, locking devices which correspond to the hydraulic cylinders one by one are arranged at the bottom of the end beam, hydraulic rods of the hydraulic cylinder are connected with the corresponding locking devices, and when the locking devices are in a locking state, the locking devices are fixedly connected with the hydraulic rods; when the locking device is in the unlocked state, the locking device is separated from the hydraulic rod.
The landing leg unit includes leg pole and lower leg cover, and the top of going up leg pole is articulated with the end beam, and the lower part of going up leg pole cup joints in lower leg cover, is equipped with a plurality of locating hole on the lower leg cover, and the locating hole runs through lower leg cover, and the locating hole sets up along the length direction interval of lower leg cover, and the bottom of going up leg pole is equipped with positioner, and positioner includes the locating lever, and the bottom of going up leg pole is equipped with the spliced eye, and the locating lever is pegged graft in spliced eye and the locating hole that corresponds.
The locking device comprises a locking block, the lower part of the locking block is provided with a locking groove with a downward opening, symmetrical locking telescopic rods are arranged in the locking groove, the locking telescopic rods are horizontally arranged, the fixed ends of the locking telescopic rods are fixedly connected with the side walls of the locking groove, the free ends of the two locking telescopic rods are oppositely arranged, the upper part of a hydraulic rod of the hydraulic cylinder is provided with a locking hole, and when the locking device is in a locking state, the free ends of the locking telescopic rods are inserted in the locking hole; when the locking device is in an unlocking state, the free end of the locking telescopic rod exits from the locking hole.
The locking device comprises a locking block, the lower part of the locking block is provided with a locking groove with a downward opening, symmetrical locking telescopic rods are arranged in the locking groove, the locking telescopic rods are vertically arranged, the fixed ends of the locking telescopic rods are fixedly connected with the top wall of the locking groove, the free ends of the two locking telescopic rods are vertically downward, the free ends of the locking telescopic rods are fixedly connected with a locking plate, the locking plate is hinged with the side wall of the locking groove, the top of a hydraulic rod of the hydraulic cylinder is provided with a locking part, the outer diameter of the locking part is larger than that of the hydraulic rod, and when the locking device is in a locking state, the locking plate is horizontally arranged and tightly propped against; when the locking device is in an unlocking state, the locking plate is obliquely arranged and separated from the locking part.
The locking telescopic rod is an electric push rod or a hydraulic cylinder.
The two leg units are symmetrically arranged about the center line of the length direction of the end beam.
The upper portion of landing leg unit is equipped with the connecting hole, is equipped with the through-hole corresponding with the connecting hole on the end beam, is equipped with the connecting rod in the through-hole, and the both ends of connecting rod extend to outside the connecting hole.
The utility model discloses the pneumatic cylinder is flexible, the hydraulic stem of pneumatic cylinder drives the end beam and reciprocates, go up the leg lever and reciprocate along lower leg cover, realize the altitude mixture control of landing leg device, realize the altitude mixture control of whole frame bridge crane then, increase the adaptation space of frame bridge crane, the frame bridge crane suitability is good, after the altitude mixture control of frame bridge crane targets in place, positioner pegs graft in the corresponding locating hole, realize the relative fixed connection of upper leg lever and lower leg cover, locking device removes the locking state to the hydraulic stem, locking device and hydraulic stem separation, the pneumatic cylinder contracts to the initial position, avoid the pneumatic cylinder to be in the extension state continuously, positioner includes the symmetrical positioning telescopic link that sets up, through the flexible of positioning telescopic link, realize the automatic connection of upper leg lever and lower leg cover, avoid the workman to climb to higher position manual work and peg graft positioner in the locating hole, the manpower is saved, the working efficiency is improved, and the probability of safety accidents is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram (one) of the locking device;
FIG. 3 is a schematic structural view (II) of the locking device;
fig. 4 is a schematic view of the connection structure of the upper leg rod and the lower leg sleeve.
Detailed Description
As shown in fig. 1, a height adjusting device of a bridge girder erection machine comprises an end beam 3, a cart travelling mechanism 11 is arranged below the end beam 3, travelling wheels of the cart travelling mechanism 11 adopt tire type travelling wheels, a plurality of leg devices are arranged between the end beam 3 and the cart travelling mechanism 11, the end beam 3 and the cart travelling mechanism 11 are connected through the leg devices, the leg devices corresponding to the two end beams 3 are symmetrically arranged, which is the prior art and is not repeated herein, each leg device comprises two vertically arranged leg units, a hydraulic cylinder 10 is arranged between the two legs, a cylinder body of the hydraulic cylinder 10 is fixed at the top of the cart travelling mechanism 11, locking devices corresponding to the hydraulic cylinders 10 one by one are arranged at the bottom of the end beam 3, hydraulic rods of the hydraulic cylinders 10 are connected with the corresponding locking devices, and when the locking devices are in a locking state, the locking devices are relatively and fixedly connected with the hydraulic rods; when the locking device is in the unlocked state, the locking device is separated from the hydraulic rod.
The landing leg unit includes upper leg pole 6 and lower landing leg cover 9, the top of upper leg pole 6 is articulated with end beam 3, the lower part of upper leg pole 6 cup joints in lower landing leg cover 9, upper leg pole 6 can reciprocate along lower landing leg cover 9, be equipped with a plurality of locating hole 8 on the lower landing leg cover 9, locating hole 8 runs through lower landing leg cover 9 lateral wall promptly, locating hole 8 sets up along the length direction interval of lower landing leg cover 9, the bottom of upper leg pole 6 is equipped with positioner, as shown in fig. 4, positioner includes locating lever 7, the bottom of upper leg pole 6 is equipped with the spliced eye, locating lever 7 is pegged graft in spliced eye and corresponding locating hole 8, corresponding locating hole 8 means, after upper leg pole 6 and lower landing leg cover 9 moved to the right place, locating hole 8 that aligns with the spliced eye on the lower landing leg cover 9.
The bridge girder erection machine further comprises a main girder 2, a trolley 1 is mounted on the main girder 2, and end beams 3 are mounted at two ends of the main girder 2.
As shown in fig. 2, the locking device includes a locking block 50, a locking groove 57 with a downward opening is formed at the lower part of the locking block 50, symmetrical locking telescopic rods 54 are arranged in the locking groove 57, the locking telescopic rods 54 are horizontally arranged, the fixed ends of the locking telescopic rods 54 are fixedly connected with the side walls of the locking groove 57, the free ends of the two locking telescopic rods 54 are oppositely arranged, a locking hole 55 is formed at the upper part of the hydraulic rod of the hydraulic cylinder 10, and when the locking device is in a locking state, the free ends of the locking telescopic rods 54 are inserted into the locking hole 55; when the locking device is in the unlocked state, the free end of the locking telescopic rod 54 exits the locking hole 55.
When the upper part of the hydraulic rod moves to the corresponding position in the locking groove 57, the locking telescopic rod 54 extends and is inserted into the locking hole 55 to realize locking, and when the bridge erecting machine moves to the set height, the locking telescopic rod 54 contracts and exits from the locking hole 55 to realize unlocking.
As shown in fig. 3, the locking device includes a locking block 50, a locking groove 57 with a downward opening is formed in the lower portion of the locking block 50, symmetrical locking telescopic rods 54 are arranged in the locking groove 57, the locking telescopic rods 54 are vertically arranged, the fixed ends of the locking telescopic rods 54 are fixedly connected with the top wall of the locking groove 57, the free ends of the two locking telescopic rods 54 are vertically downward, a locking plate 58 is fixedly connected with the free ends of the locking telescopic rods 54, the locking plate 58 is hinged with the side wall of the locking groove 57, a locking portion 59 is arranged at the top of a hydraulic rod of the hydraulic cylinder 10, the outer diameter of the locking portion 59 is larger than that of the hydraulic rod, and when the locking device is in a locking state, the locking plate 58 is horizontally arranged and; when the locking device is in the unlocked state, the locking plate 58 is obliquely disposed and separated from the locking portion 59.
When locking portion 59 moves to the corresponding position in locking groove 57, locking telescopic link 54 contracts, and locking telescopic link 54 drives locking plate 58 and rotates to the horizontality, and locking plate 58 top is tight in the bottom of locking portion 59, realizes locking, and after the frame bridge crane removed to the height of settlement, locking telescopic link 54 extended, locking telescopic link 54 driven locking plate 58 rotate to locking plate 58 slope setting and with locking portion 59 separation, the realization unblock.
And a pressure sensor 51 is installed in the locking groove 57, the bridge erecting machine comprises a controller, the pressure sensor 51 and the locking telescopic rod 54 are electrically connected with the controller, and the pressure sensor 51 is used for detecting pressure and judging the position of the hydraulic rod entering the locking groove 57.
The bottom end of the pressure sensor 51 is fixed with a buffer spring 52, the bottom of the buffer spring 52 is fixed with a buffer plate 53, the buffer spring 52 and the buffer plate 53 play a buffer role and are used for transmitting pressure to the pressure sensor 51, the pressure sensor 51 feeds back a signal to a controller, the controller controls the locking telescopic rod 54 to work, and when the pressure sensor 51 is not installed, the locking telescopic rod 54 is controlled to work according to the extending length of a hydraulic rod through programming.
When the hydraulic rod of the hydraulic cylinder 10 enters the locking groove 57, the buffer plate 53 is extruded, the buffer plate 53 and the buffer spring 52 transmit the pressure to the pressure sensor 51 in sequence, the pressure sensor 51 feeds back a signal to the controller, and the controller controls the locking telescopic rod 54 to work.
The two leg units are symmetrically arranged about the center line of the end beam 3 in the length direction.
The upper portion of landing leg unit is equipped with the connecting hole, is equipped with the through-hole corresponding with the connecting hole on the end beam 3, is equipped with connecting rod 4 in the through-hole, and the both ends of connecting rod 4 extend to outside the connecting hole, realize that landing leg unit and end beam 3 are articulated.
The locking telescopic rod 54 is an electric push rod or a hydraulic cylinder 10, when the locking telescopic rod 54 is the electric push rod, the locking telescopic rod 54 is powered on to work, and when the locking telescopic rod 54 is the hydraulic cylinder 10, the locking telescopic rod 54 is controlled to work through a hydraulic control system.
The utility model discloses in pneumatic cylinder 10 connect in hydraulic control system, hydraulic control system controls its work, hydraulic control system adopts prior art, including oil tank, hydraulic pump, switching-over valve like hydraulic control system, the import of hydraulic pump connects the oil tank, the export of hydraulic pump passes through the switching-over valve and connects pneumatic cylinder 10.
The hydraulic control system and the locking telescopic rod 54 are electrically connected with the controller, and the controller controls the hydraulic control system and the locking telescopic rod 54 to work, so that the integral automation degree of the bridge girder erection machine is improved.
When the height of the bridge girder erection machine needs to be adjusted during use, the hydraulic cylinder 10 extends, the hydraulic rod enters the locking device, the locking device locks the hydraulic rod, the positioning rod 7 is pulled out, then the hydraulic cylinder 10 drives the end beam 3 to move up and down, the upper supporting leg rod 6 moves up and down along the lower supporting leg sleeve 9, the height adjustment of the supporting leg device is realized, the height adjustment of the whole bridge girder erection machine is realized, the adaptive space of the bridge girder erection machine is increased, the applicability of the bridge girder erection machine is good, after the altitude mixture control of bridging machine targetting in place, peg graft locating lever 7 in spliced eye and corresponding locating hole 8, realize going up leg lever 6 and the relative fixed connection of lower leg cover 9, locking device removes the locking state to the hydraulic stem, and locking device and hydraulic stem separation, pneumatic cylinder 10 shrink to initial position, avoid pneumatic cylinder 10 to be in the extension state continuously, avoid hydraulic control system to be in the pressurize state continuously, consume more energy.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (6)
1. The utility model provides a height adjusting device of frame bridge crane, includes the end beam, and the below of end beam is equipped with cart running gear, is equipped with a plurality of landing leg device between end beam and the cart running gear, and end beam and cart running gear pass through the landing leg device and connect, and the landing leg device symmetry that the both ends roof beam corresponds sets up its characterized in that: the supporting leg device comprises two vertically arranged supporting leg units, a hydraulic cylinder is arranged between the two supporting legs, a cylinder body of the hydraulic cylinder is fixed at the top of the cart travelling mechanism, locking devices which correspond to the hydraulic cylinder one by one are arranged at the bottom of the end beam, a hydraulic rod of the hydraulic cylinder is connected with the corresponding locking devices, and when the locking devices are in a locking state, the locking devices are relatively and fixedly connected with the hydraulic rod; when the locking device is in an unlocking state, the locking device is separated from the hydraulic rod;
the landing leg unit includes leg pole and lower leg cover, and the top of going up leg pole is articulated with the end beam, and the lower part of going up leg pole cup joints in lower leg cover, is equipped with a plurality of locating hole on the lower leg cover, and the locating hole runs through lower leg cover, and the locating hole sets up along the length direction interval of lower leg cover, and the bottom of going up leg pole is equipped with positioner, and positioner includes the locating lever, and the bottom of going up leg pole is equipped with the spliced eye, and the locating lever is pegged graft in spliced eye and the locating hole that corresponds.
2. The height adjusting device of the bridge girder erection machine according to claim 1, wherein: the locking device comprises a locking block, the lower part of the locking block is provided with a locking groove with a downward opening, symmetrical locking telescopic rods are arranged in the locking groove, the locking telescopic rods are horizontally arranged, the fixed ends of the locking telescopic rods are fixedly connected with the side walls of the locking groove, the free ends of the two locking telescopic rods are oppositely arranged, the upper part of a hydraulic rod of the hydraulic cylinder is provided with a locking hole, and when the locking device is in a locking state, the free ends of the locking telescopic rods are inserted in the locking hole; when the locking device is in an unlocking state, the free end of the locking telescopic rod exits from the locking hole.
3. The height adjusting device of the bridge girder erection machine according to claim 1, wherein: the locking device comprises a locking block, the lower part of the locking block is provided with a locking groove with a downward opening, symmetrical locking telescopic rods are arranged in the locking groove, the locking telescopic rods are vertically arranged, the fixed ends of the locking telescopic rods are fixedly connected with the top wall of the locking groove, the free ends of the two locking telescopic rods are vertically downward, the free ends of the locking telescopic rods are fixedly connected with a locking plate, the locking plate is hinged with the side wall of the locking groove, the top of a hydraulic rod of the hydraulic cylinder is provided with a locking part, the outer diameter of the locking part is larger than that of the hydraulic rod, and when the locking device is in a locking state, the locking plate is horizontally arranged and tightly propped against; when the locking device is in an unlocking state, the locking plate is obliquely arranged and separated from the locking part.
4. A height adjusting device of a bridge erecting machine according to claim 2 or 3, wherein: the locking telescopic rod is an electric push rod or a hydraulic cylinder.
5. The height adjusting device of the bridge girder erection machine according to claim 1, wherein: the two leg units are symmetrically arranged about the center line of the length direction of the end beam.
6. The height adjusting device of the bridge girder erection machine according to claim 5, wherein: the upper portion of landing leg unit is equipped with the connecting hole, is equipped with the through-hole corresponding with the connecting hole on the end beam, is equipped with the connecting rod in the through-hole, and the both ends of connecting rod extend to outside the connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020074932.1U CN211547410U (en) | 2020-01-14 | 2020-01-14 | Height adjusting device of bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020074932.1U CN211547410U (en) | 2020-01-14 | 2020-01-14 | Height adjusting device of bridge girder erection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211547410U true CN211547410U (en) | 2020-09-22 |
Family
ID=72491279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020074932.1U Expired - Fee Related CN211547410U (en) | 2020-01-14 | 2020-01-14 | Height adjusting device of bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211547410U (en) |
-
2020
- 2020-01-14 CN CN202020074932.1U patent/CN211547410U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 453400 Weizhuang Town Industrial Zone, Changyuan County, Xinxiang City, Henan Province Patentee after: Henan Tieshan lifting equipment Group Co.,Ltd. Address before: 453400 Weizhuang Town Industrial Zone, Changyuan County, Xinxiang City, Henan Province Patentee before: HENAN TIESHAN LIFTING EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |