CN202193559U - Anti-dropping device of jacking device of gantry crane - Google Patents
Anti-dropping device of jacking device of gantry crane Download PDFInfo
- Publication number
- CN202193559U CN202193559U CN2011202610704U CN201120261070U CN202193559U CN 202193559 U CN202193559 U CN 202193559U CN 2011202610704 U CN2011202610704 U CN 2011202610704U CN 201120261070 U CN201120261070 U CN 201120261070U CN 202193559 U CN202193559 U CN 202193559U
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- jacking device
- nut
- adjusting screw
- rod
- supporting plate
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Abstract
The utility model discloses an anti-dropping device of a jacking device of a gantry crane and aims at providing the anti-dropping device which can prevent the jacking device from falling due to the action of gravity and ensures production operation to smoothly run. The anti-dropping device is characterized in that a positioning nut is fixedly connected with an upper supporting plate; the upper end of a double-end adjusting screw rod is in threaded connection with the positioning nut; the lower end of the double-end adjusting screw rod is in threaded connection with an upper adjusting nut; the upper end of a connecting bolt is in threaded connection with a lower adjusting nut; the lower end of the connecting bolt is connected with the upper end of a spring; the lower end of the spring is connected with a lower supporting plate; the upper supporting plate is fixedly connected with a cylinder block of an oil cylinder; and the lower supporting plate is fixedly connected with a chassis of the jacking device. When the oil cylinder leaks and the jacking device slides downwards, the initial tensile force of the spring in the anti-dropping device of the anti-dropping device can limit the jacking device from sliding downwards, thereby preventing the jacking device from falling and avoiding the influence caused by the falling fault of the jacking device. As a hydraulic power unit is not needed to be started for lifting the jacking device, the unnecessary energy consumption is avoided, and the operation cost of a single box is reduced.
Description
Technical field
The utility model relates to a kind of bridge jacking device falling proof device.
Background technology
Jacking device is installed between two tires of bridge on the scene, and field bridge tire jack-up is broken away from ground, the friction when turning between field bridge tire and the ground with minimizing, and the protection tire is convenient to maintenance simultaneously.Jacking device is driven by jacking cylinder, and jacking cylinder is driven by engine drive cart hydraulic power unit.Because jacking cylinder be vertically to install, by gravity under the long-time static state, has and lets out in certain, causes jacking device to drop.When jacking device hangs minimumly when spacing, cart is out of service.At this moment, a bridge can start the cart hydraulic power unit and promote jacking device, and support equipment safety is used with normal.
At present, in order to satisfy the requirement of energy-saving and environmental protection, a bridge is driven by oil and changes the electricity driving into.From consideration to whole power load, the power resources of cart hydraulic power unit not to be introduced in the civil power, this just means; In operation,, need to start the cart hydraulic power unit and promote jacking device in case jacking device downslide fault takes place owing to oil cylinder leaks; Artificially transfer the field bridge to diesel-engined drive; Jacking device is risen, so both delayed production time, influenced operating efficiency, can produce unnecessary cost loss again.
The utility model content
The utility model is in order to overcome weak point of the prior art, to provide a kind of and can prevent jacking device because action of gravity is fallen, ensureing the field bridge jacking device falling proof device that production operation is carried out smoothly.
The utility model is realized through following technical proposals:
A kind of bridge jacking device falling proof device; It is characterized in that; Along the circumferential direction be provided with many groups between jacking device chassis and the cylinder block and hang tight mechanism; Every group hangs tight mechanism and comprises upper supporting plate, setscrew nut, double end adjusting screw(rod), adjusting part, tie bolt, spring and lower carrier plate, and said adjusting part is for by adjusted nut, connecting rod, the integral body that is welded of setting nut down, and said setscrew nut is captiveed joint with upper supporting plate; Said double end adjusting screw(rod) upper end is threaded with said setscrew nut; The lower end of said double end adjusting screw(rod) is connected with said adjusted nut thread, and said tie bolt upper end is connected with the said nut thread of adjusting down, and the lower end of said tie bolt is connected with the spring upper end; Said spring lower end is connected with lower carrier plate; On the double end adjusting screw(rod) of said setscrew nut and double end adjusting screw(rod) junction first jam nut is installed, on the double end adjusting screw(rod) of said double end adjusting screw(rod) and adjusted nut junction second jam nut is installed, on the tie bolt of said setting nut down and said tie bolt junction the 3rd jam nut is installed; Said upper supporting plate is captiveed joint with cylinder block, and said lower carrier plate is captiveed joint with the jacking device chassis.
The utlity model has following technique effect:
When oil cylinder was revealed jacking device to lower slider, the initial tensile force of the spring in the falling proof device of the utility model can limit jacking device to lower slider, has avoided falling of jacking device, prevented because the influence that the jacking device fall failure causes.Simultaneously, promote jacking device, can ensure that production operation continuously, carry out smoothly, has improved operating efficiency, avoid producing unnecessary energy consumption, reduced single casing working cost owing to need not start hydraulic power unit.
Description of drawings
Fig. 1 is for hanging tight the scheme drawing of mechanism in the bridge jacking device falling proof device of the utility model field.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
The utility model field bridge jacking device falling proof device is included between jacking device chassis and the cylinder block along the circumferential direction to be gone up many groups of being provided with and hangs tight mechanism; The scheme drawing that hangs tight mechanism is as shown in Figure 1; Every group hangs tight mechanism and comprises upper supporting plate 1, setscrew nut 2, double end adjusting screw(rod) 4, adjusting part, tie bolt 9, spring 10, lower carrier plate 11; The integral body of said adjusting part for being welded by adjusted nut 6, connecting rod 7, following setting nut 8, said setscrew nut 2 is captiveed joint with upper supporting plate 1, and double end adjusting screw(rod) 4 upper ends are threaded with setscrew nut 2; The lower end of double end adjusting screw(rod) 4 is threaded with adjusted nut 6; Tie bolt 9 upper ends are threaded with following setting nut 8, and the lower end of tie bolt 9 is connected with spring 10 upper ends, and spring 10 lower ends are connected with lower carrier plate 11.On the double end adjusting screw(rod) of said setscrew nut 2 and double end adjusting screw(rod) 4 junctions first jam nut 3 is installed; On the double end adjusting screw(rod) of double end adjusting screw(rod) 4 and adjusted nut 6 junctions second jam nut 5 is installed, on the tie bolt of following setting nut 8 and tie bolt 9 junctions the 3rd jam nut 13 is installed.Upper supporting plate 1 is captiveed joint with cylinder block, and lower carrier plate 11 is captiveed joint with jacking device chassis 12.
Hang tight mechanism and be generally three groups, circumference is uniformly distributed with for per 120 ° along the jacking device chassis, and the flexible stroke of design is 200mm.When oil cylinder leaked jacking device to lower slider, the pulling force of spring had overcome the gravity that jacking device falls, and the restriction jacking device is to lower slider.When the jacking device normal operation, spring is put and is received along with the flexible of jacking device, and the normal operation of jacking device is had no influence.
Claims (1)
1. field bridge jacking device falling proof device; It is characterized in that; Along the circumferential direction be provided with many groups between jacking device chassis and the cylinder block and hang tight mechanism; Every group hangs tight mechanism and comprises upper supporting plate, setscrew nut, double end adjusting screw(rod), adjusting part, tie bolt, spring and lower carrier plate, and said adjusting part is for by adjusted nut, connecting rod, the integral body that is welded of setting nut down, and said setscrew nut is captiveed joint with upper supporting plate; Said double end adjusting screw(rod) upper end is threaded with said setscrew nut; The lower end of said double end adjusting screw(rod) is connected with said adjusted nut thread, and said tie bolt upper end is connected with the said nut thread of adjusting down, and the lower end of said tie bolt is connected with the spring upper end; Said spring lower end is connected with lower carrier plate; On the double end adjusting screw(rod) of said setscrew nut and double end adjusting screw(rod) junction first jam nut is installed, on the double end adjusting screw(rod) of said double end adjusting screw(rod) and adjusted nut junction second jam nut is installed, on the tie bolt of said setting nut down and said tie bolt junction the 3rd jam nut is installed; Said upper supporting plate is captiveed joint with cylinder block, and said lower carrier plate is captiveed joint with the jacking device chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202610704U CN202193559U (en) | 2011-07-22 | 2011-07-22 | Anti-dropping device of jacking device of gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202610704U CN202193559U (en) | 2011-07-22 | 2011-07-22 | Anti-dropping device of jacking device of gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202193559U true CN202193559U (en) | 2012-04-18 |
Family
ID=45948480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202610704U Expired - Lifetime CN202193559U (en) | 2011-07-22 | 2011-07-22 | Anti-dropping device of jacking device of gantry crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202193559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109177532A (en) * | 2018-10-26 | 2019-01-11 | 岳阳宝丽纺织品有限公司 | A kind of spray head lift locating device and printing equipment |
-
2011
- 2011-07-22 CN CN2011202610704U patent/CN202193559U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109177532A (en) * | 2018-10-26 | 2019-01-11 | 岳阳宝丽纺织品有限公司 | A kind of spray head lift locating device and printing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |
|
| CX01 | Expiry of patent term |