CN212475903U - Rotary supporting leg structure of lorry-mounted crane - Google Patents
Rotary supporting leg structure of lorry-mounted crane Download PDFInfo
- Publication number
- CN212475903U CN212475903U CN202020919946.9U CN202020919946U CN212475903U CN 212475903 U CN212475903 U CN 212475903U CN 202020919946 U CN202020919946 U CN 202020919946U CN 212475903 U CN212475903 U CN 212475903U
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- China
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- support
- shaft
- fixed
- leg
- sleeve
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- Expired - Fee Related
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- Jib Cranes (AREA)
Abstract
The utility model discloses a lorry crane's rotatory landing leg structure, including flexible landing leg, output shaft and axle sleeve, the internal connection of flexible landing leg has rotatory hydraulic motor, and the outside of rotatory hydraulic motor is connected with fixed cover, the inside of fixed cover is provided with fixing bolt and adjusting bolt, and the right-hand member of rotatory hydraulic motor is fixed with the output shaft, connecting the gear and fixing in the inside of support, and the upper end setting of support is in the inside of flexible landing leg, the removal handle runs through the axle sleeve, and the inside of axle sleeve is provided with the spring, the below of support is fixed with the landing leg hydro-cylinder. This lorry crane's rotatory landing leg structure is through opening the inside that exposes the device with the support to install the inside part of telescopic leg, because the support can rotate, so be convenient for the maintenance of device, and can make the device remove on more complicated road surface through rotating the support, and then increase the practicality of device.
Description
Technical Field
The utility model relates to a lorry crane technical field specifically is a lorry crane's rotatory landing leg structure.
Background
When a lorry-mounted crane is used in various places needing to move heavy objects, such as building places, and the like, and the lorry-mounted crane moves from one side to the other side, or the lorry-mounted crane drives from one place to another place, problems easily occur to the supporting leg structure of the lorry-mounted crane, such as:
firstly, the distance between an oil cylinder of a support leg structure of the lorry-mounted crane and the ground is very small, and the ground is uneven or has obstacles, so that the oil cylinder is easy to collide with the ground in the walking process;
secondly, when the road surface is on a steep slope or the like, the road surface is uneven and is easy to collide with.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lorry crane's rotatory landing leg structure to propose the problem that hydro-cylinder and ground easily take place the collision among the solution above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a rotary support leg structure of a lorry-mounted crane comprises a telescopic support leg, an output shaft and a shaft sleeve, wherein a rotary hydraulic motor is connected inside the telescopic support leg, a fixing sleeve is connected outside the rotary hydraulic motor, a fixing bolt and an adjusting bolt are arranged inside the fixing sleeve, the right end of the rotary hydraulic motor is fixed with the output shaft, a driving gear is connected outside the output shaft, a transmission chain is arranged outside the driving gear, a connecting gear is arranged inside the transmission chain, the connecting gear is fixed inside a support, the upper end of the support is arranged inside the telescopic support leg, the shaft sleeve is fixed inside the support and positioned behind the connecting gear, a fixed shaft is connected inside the shaft sleeve, a movable handle is fixed on the side surface of the fixed shaft, the movable handle penetrates through the shaft sleeve, and a spring is arranged inside the shaft sleeve, one end of the spring is connected with the fixed shaft, the other end of the spring is connected with the movable shaft, the movable shaft (14) is located inside the shaft sleeve, the supporting leg oil cylinder is fixed below the support, and the oil cylinder connecting supporting plate is connected inside the supporting leg oil cylinder.
Preferably, the telescopic supporting legs and the rotary hydraulic motor form a disassembly and assembly structure through fixing bolts, adjusting bolts and a fixing sleeve, and the rotation angle range of the rotary hydraulic motor is 0-180 degrees.
Preferably, the output shaft and the driving gear are in clamping connection, and the driving gear and the transmission chain are in meshing connection.
Preferably, the transmission chain is in meshed connection with the connecting gear, the connecting gear is fixedly connected with the support, and the support and the telescopic support leg form a rotating structure.
Preferably, the shaft sleeve is in sliding connection with the fixed shaft, and the shaft sleeve is in clamping connection with the movable handle.
Preferably, the movable shaft and the shaft sleeve form a telescopic structure, and the movable shaft and the shaft sleeve are in clamping connection.
Compared with the prior art, the beneficial effects of the utility model are that: the rotating supporting leg structure of the lorry-mounted crane,
1. compared with the common device, when the device is used, parts are arranged inside the telescopic supporting legs, so that the parts inside the device can not influence the telescopic supporting legs when working, and the practicability of the device is improved;
2. compared with a common device, the device can be maintained by opening the bracket and then installing parts such as a rotary hydraulic motor and the like into the device, and when a problem occurs in the device, the hydraulic motor can rotate to open the device;
3. when the device moves, other parts are arranged inside the telescopic supporting leg, the area of the device can be reduced by rotating the support, so that the movable distance of the telescopic supporting leg is larger, and the problem of collision of a supporting leg oil cylinder is avoided.
Drawings
FIG. 1 is a schematic overall front sectional view of the present invention;
FIG. 2 is a schematic left sectional view of the whole structure of the present invention;
FIG. 3 is a schematic view of the sectional structure of the telescopic leg and the transmission chain of the present invention after installation;
fig. 4 is the cross-sectional structural schematic view of the shaft sleeve and the fixed shaft of the present invention.
In the figure: 1. a telescopic leg; 2. a rotary hydraulic motor; 3. fixing the bolt; 4. adjusting the bolt; 5. an output shaft; 6. a driving gear; 7. a drive chain; 8. a connecting gear; 9. a support; 10. a shaft sleeve; 11. a fixed shaft; 12. moving the handle; 13. a spring; 14. a movable shaft; 15. a support oil cylinder; 16. the oil cylinder is connected with the supporting plate; 17. and (4) fixing sleeves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a rotary supporting leg structure of a lorry-mounted crane comprises a telescopic supporting leg 1, a rotary hydraulic motor 2, a fixing bolt 3, an adjusting bolt 4, an output shaft 5, a driving gear 6, a transmission chain 7, a connecting gear 8, a support 9, a shaft sleeve 10, a fixing shaft 11, a movable handle 12, a spring 13, a movable shaft 14, a supporting leg oil cylinder 15, an oil cylinder connecting support plate 16 and a fixing sleeve 17, wherein the rotary hydraulic motor 2 is connected inside the telescopic supporting leg 1, the fixing sleeve 17 is connected outside the rotary hydraulic motor 2, the fixing bolt 3 and the adjusting bolt 4 are arranged inside the fixing sleeve 17, the output shaft 5 is fixed at the right end of the rotary hydraulic motor 2, the driving gear 6 is connected outside the output shaft 5, the transmission chain 7 is arranged outside the driving gear 6, the connecting gear 8 is arranged inside the transmission chain 7, the connecting gear 8 is fixed inside the support 9, the upper end of the support 9 is arranged inside the telescopic supporting leg 1, a shaft sleeve 10 is fixed inside the support 9, the shaft sleeve 10 is located behind the connecting gear 8, a fixed shaft 11 is connected inside the shaft sleeve 10, a moving handle 12 is fixed on the side face of the fixed shaft 11, the moving handle 12 penetrates through the shaft sleeve 10, a spring 13 is arranged inside the shaft sleeve 10, one end of the spring 13 is connected with the fixed shaft 11, the other end of the spring 13 is connected with a moving shaft 14, the moving shaft 14 is located inside the shaft sleeve 10, a supporting leg oil cylinder 15 is fixed below the support 9, and an oil cylinder connecting supporting plate 16 is connected inside the supporting leg oil cylinder 15.
The output shaft 5 is connected with the driving gear 6 in a clamping mode, the driving gear 6 is connected with the transmission chain 7 in a meshing mode, after the rotary hydraulic motor 2 is installed, the driving gear 6 is clamped with the output shaft 5, the driving gear 6 is driven to rotate, and the transmission chain 7 is driven to move when the driving gear 6 rotates.
Transmission chain 7 and connecting gear 8 are connected for the meshing, and connecting gear 8 and support 9 are fixed connection, and support 9 and telescopic leg 1 constitute rotating-structure, when transmission chain 7 rotated, because connecting gear 8 and support 9 are fixed can not rotate, so can drive support 9 and rotate, thereby make the device open, compare in general device, the device can reduce the area of device through rotating support 9, thereby make the device can remove on complicated road conditions.
The shaft sleeve 10 and the fixed shaft 11 are in sliding connection, the shaft sleeve 10 and the movable handle 12 are in clamping connection, the movable shaft 14 and the shaft sleeve 10 form a telescopic structure, the shaft sleeve and the movable handle are in clamping connection, when the device needs to rotate, the movable handle 12 moves rightwards to enable the fixed shaft 11 to move leftwards, the spring 13 can contract at the moment, the fixed shaft 11 and the telescopic supporting leg 1 are not clamped any more, the support 9 can rotate, after the device is restored to the original position, the movable handle 12 moves upwards, the spring 13 pushes the fixed shaft 11 to move rightwards, and therefore the device is fixed.
The working principle is as follows: when the rotating leg structure of the lorry-mounted crane is used, the moving handle 12 is moved leftwards when the device is used, the spring 13 is contracted, the moving shaft 14 is used for fixing the spring 13, the shaft sleeve 10 is used for limiting the fixed shaft 11 to prevent the fixed shaft from being dislocated in the moving process, and the device can be opened by rotating the support 9;
moving the rotary hydraulic motor 2 to an installation position, fixing the rotary hydraulic motor 2 through the fixing sleeve 17 and the telescopic supporting leg 1 by using the fixing bolt 3, adjusting the inclination angle of the rotary hydraulic motor 2 by rotating the adjusting bolt 4, clamping the rotary hydraulic motor 2 by using the driving gear 6 and the output shaft 5, installing the transmission chain 7 above the driving gear 6 and the connecting gear 8, connecting the device with an external power supply, and driving the support 9 to rotate when the rotary hydraulic motor 2 rotates;
when the device is used, the supporting leg oil cylinder 15 can drive the oil cylinder connecting supporting plate 16 to move up and down, so that the device is supported, and the device is arranged inside the telescopic supporting leg 1, so that the use of the telescopic supporting leg 1 is not influenced, and the overall practicability is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a lorry crane's rotatory landing leg structure, includes telescopic leg (1), output shaft (5) and axle sleeve (10), its characterized in that: the telescopic leg is characterized in that a rotary hydraulic motor (2) is connected inside the telescopic leg (1), a fixing sleeve (17) is connected outside the rotary hydraulic motor (2), a fixing bolt (3) and an adjusting bolt (4) are arranged inside the fixing sleeve (17), an output shaft (5) is fixed at the right end of the rotary hydraulic motor (2), a driving gear (6) is connected outside the output shaft (5), a transmission chain (7) is arranged outside the driving gear (6), a connecting gear (8) is arranged inside the transmission chain (7), the connecting gear (8) is fixed inside the support (9), the upper end of the support (9) is arranged inside the telescopic leg (1), a shaft sleeve (10) is fixed inside the support (9), the shaft sleeve (10) is located behind the connecting gear (8), and a fixing shaft (11) is connected inside the shaft sleeve (10), and the side of fixed axle (11) is fixed with removal handle (12), removal handle (12) run through axle sleeve (10), and the inside of axle sleeve (10) is provided with spring (13), the one end and the fixed axle (11) of spring (13) are connected, and the other end and the removal axle (14) of spring (13) are connected to remove axle (14) and be located the inside of axle sleeve (10), the below of support (9) is fixed with landing leg hydro-cylinder (15), and the internal connection of landing leg hydro-cylinder (15) has hydro-cylinder joint support board (16).
2. A rotary leg structure of a lorry-mounted crane according to claim 1, characterized in that: the telescopic supporting leg (1) and the rotary hydraulic motor (2) form a dismounting and mounting structure through the fixing bolt (3), the adjusting bolt (4) and the fixing sleeve (17), and the range of the rotation angle of the rotary hydraulic motor (2) is 0-180 degrees.
3. A rotary leg structure of a lorry-mounted crane according to claim 1, characterized in that: the output shaft (5) is connected with the driving gear (6) in a clamping mode, and the driving gear (6) is connected with the transmission chain (7) in a meshing mode.
4. A rotary leg structure of a lorry-mounted crane according to claim 1, characterized in that: the transmission chain (7) is in meshed connection with the connecting gear (8), the connecting gear (8) is fixedly connected with the support (9), and the support (9) and the telescopic supporting leg (1) form a rotating structure.
5. A rotary leg structure of a lorry-mounted crane according to claim 1, characterized in that: the shaft sleeve (10) is in sliding connection with the fixed shaft (11), and the shaft sleeve (10) is in clamping connection with the movable handle (12).
6. A rotary leg structure of a lorry-mounted crane according to claim 1, characterized in that: the movable shaft (14) and the shaft sleeve (10) form a telescopic structure, and the movable shaft and the shaft sleeve are connected in a clamping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020919946.9U CN212475903U (en) | 2020-05-27 | 2020-05-27 | Rotary supporting leg structure of lorry-mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020919946.9U CN212475903U (en) | 2020-05-27 | 2020-05-27 | Rotary supporting leg structure of lorry-mounted crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212475903U true CN212475903U (en) | 2021-02-05 |
Family
ID=74411792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020919946.9U Expired - Fee Related CN212475903U (en) | 2020-05-27 | 2020-05-27 | Rotary supporting leg structure of lorry-mounted crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212475903U (en) |
-
2020
- 2020-05-27 CN CN202020919946.9U patent/CN212475903U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |