CN203065067U - Tipping-preventing device for front-handling mobile crane - Google Patents
Tipping-preventing device for front-handling mobile crane Download PDFInfo
- Publication number
- CN203065067U CN203065067U CN 201320051697 CN201320051697U CN203065067U CN 203065067 U CN203065067 U CN 203065067U CN 201320051697 CN201320051697 CN 201320051697 CN 201320051697 U CN201320051697 U CN 201320051697U CN 203065067 U CN203065067 U CN 203065067U
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- China
- Prior art keywords
- connecting rod
- hinged
- pin shaft
- connection frame
- link
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- Expired - Lifetime
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Abstract
The utility model discloses a tipping-preventing device for a front-handling mobile crane. The tipping-preventing device comprises a front connection frame and a back connection frame, wherein the front group of connection frame and the back group of connection frame are connected between a frame body and a rear steering axle; each connection frame comprises an upper support plate and a lower lug plate; the upper end of each upper support plate is connected with the frame body; the lower end of each lower lug plate is connected with the rear steering axle; each upper support plate and each lower lug plate are hinged by using a pin shaft; each lower lug plate can rotate around each pin shaft; a vertical connecting rod is hinged to a rear pin shaft; the lower end of the vertical connecting rod is hinged with a transverse connecting rod; a fixed column and a sensor support are arranged on the lower part of the lower lug plate of the back connection frame; the fixed column passes through the transverse connection frame which is in clearance fit with the fixed column; and an approach switch corresponding to the transverse connecting rod is arranged on the sensor support. When load exceeds a critical value of the mobile crane, the rear pin shaft is used for driving the vertical connecting rod to move upwards and the transverse connecting rod deviates around the fixed column, so that the approach switch is triggered, and a control system receives a signal of the approach switch and controls a hoisting system to stop working; and when the front-handling mobile crane continuously tips over, the rear pin shaft is adopted to ensure that the rear steering axle and balance weight of the rear steering axle are integrated to prevent tipping of the whole crane.
Description
Technical field
The utility model relates to a kind of container face crane, is specifically related to a kind of anti-tilting apparatus of container face crane.
Background technology
Existing container face crane has anti-tilting apparatus substantially, be that the front is when being hung in the handling freight container, it is the moment that turns forward at zero point with the propons axle center that the gravity of freight container can be given one of car load, tumble for preventing the excessive car load that causes of this moment, need take certain preventive, but mostly there is complex structure in these anti-tilting apparatus, keep in repair extremely defectives such as inconvenience, make it anti-tipping reliability and reduce.
The utility model content
The purpose of this utility model is to provide a kind of safe, easy to maintenance container face crane anti-tilting apparatus that uses.
This anti-tilting apparatus for front swing-machine that the utility model provides, comprise the two groups of link spans in front and back that are connected between vehicle frame and the back steeraxle, every group of link span comprises upper bracket plate and lower ear plate, the upper end of upper bracket plate is connected with vehicle frame, and the lower end of lower ear plate is connected with the back steeraxle; Hinged with preceding bearing pin between the upper bracket of front link span and the lower ear plate, hinged with rear pin shaft between the upper bracket plate of back link span and the lower ear plate, lower ear plate respectively and be free-running fit between the forward and backward bearing pin; Be hinged with vertical link on the rear pin shaft, the lower end of this connecting rod is hinged with transverse link, and the lower ear plate bottom of back link span is connected with fixed leg and sensor stand; Fixed leg vertically passes transverse link, is free-running fit between the two; Have on the sensor stand near switch, corresponding with transverse link near the position of switch.
The outer end of described fixed leg is equipped with nut.
The aperture is arranged greater than circular hole or the oval hole of described forward and backward pin diameter on the lower ear plate of described link span.
There is counterweight the below of described back steeraxle.
When front swing-machine reached a certain critical value at lift heavy, vehicle frame was zero to the pressure of back steeraxle.When lift heavy continued to increase, vehicle frame separated with the back steeraxle, will produce the motion of tumbling centered by the propons axle.At this moment, the utility model rear pin shaft drives on the vertical link and moves, driving transverse link is offset centered by fixed leg, because the skew of transverse link causes near on-off signal amount change corresponding with it, control system quits work the lifting system of car load after receiving signal near switch automatically, and the trend of tumbling of car load is prevented.When car load continues to tumble motion, drive the following counterweight of back steeraxle and installation on it with vehicle frame and the back rear pin shaft that is connected of steeraxle, make it into as a whole, owing to added deadweight and the following counterweight thereof of back steeraxle, the balancing torque of car load is increased greatly, improve the anti-tipping reliability of car load greatly.Because it is it is hinged to be essentially bearing pin between each attaching parts, so easy to maintenance.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that A among Fig. 1 is to scheme drawing.
Fig. 3 is the B-B scheme drawing among Fig. 2.
Fig. 4 is the C-C scheme drawing among Fig. 1.
Fig. 5 is the another kind of scheme drawing of C-C among Fig. 1.
The specific embodiment
Extremely shown in Figure 5 as Fig. 1, this anti-tilting apparatus for front swing-machine that the utility model provides comprises the two groups of link spans 1 in front and back that are connected between vehicle frame 8 and the back steeraxle 9, every group of link span 1 comprises upper bracket plate 11 and lower ear plate 12, the upper end of upper bracket plate 11 is connected with vehicle frame 8, and the lower end of lower ear plate 12 is connected with back steeraxle 9; Hinged with preceding bearing pin 13 between the upper bracket 11 of front link span 1 and the lower ear plate 12, hinged with rear pin shaft 14 between the upper bracket plate 11 of back link span 1 and the lower ear plate 12, lower ear plate 12 can connect by plain bearing 10 between them respectively and be free-running fit between the forward and backward bearing pin; Be hinged with vertical link 2 on the bearing pin 13 of back link span 1, the lower end of this connecting rod is hinged with transverse link 3, and lower ear plate 12 bottoms of back link span 1 are connected with fixed leg 4 and sensor stand 5; Fixed leg 4 vertically passes transverse link 3, is free-running fit between the two, and the outer end of fixed leg 2 is equipped with nut.Have on the sensor stand 5 near switch 6, corresponding with transverse link 3 near the position of switch 6.The aperture is arranged greater than circular hole or the oval hole of preceding bearing pin 13, rear pin shaft 14 diameters on the lower ear plate 12 of link span 1.There is counterweight 7 below of back steeraxle 9.
Principle of work is as follows: when lift heavy surpassed the critical value of suspension transferring machine, rear pin shaft drove vertical link and upwards moves, thereby drove the transverse link skew.Because the skew of transverse link causes near on-off signal amount change corresponding with it, control system quits work the lifting system of car load after receiving signal near switch automatically; When car load continued to tumble, the rear pin shaft that is connected with steeraxle with vehicle frame drives steeraxle and it goes up the following counterweight of installation, made it into as a wholely, prevented that effectively car load from tumbling.
The utility model is particularly suitable for using at container face crane.
Claims (4)
1. anti-tilting apparatus that is used for front swing-machine, it is characterized in that: this device comprises the two groups of link spans in front and back that are connected between vehicle frame and the back steeraxle, every group of link span comprises upper bracket plate and lower ear plate, the upper end of upper bracket plate is connected with vehicle frame, and the lower end of lower ear plate is connected with the back steeraxle; Hinged with preceding bearing pin between the upper bracket of front link span and the lower ear plate, hinged with rear pin shaft between the upper bracket of back link span and the lower ear plate, lower ear plate respectively and be free-running fit between the forward and backward bearing pin; Be hinged with vertical link on the rear pin shaft, the lower end of this connecting rod is hinged with transverse link, and the lower ear plate bottom of back link span is connected with fixed leg and sensor stand; Fixed leg vertically passes transverse link, is free-running fit between the two, has on the sensor stand near switch, and is corresponding with transverse link near the position of switch.
2. the anti-tilting apparatus for front swing-machine as claimed in claim 1, it is characterized in that: the outer end of described fixed leg is equipped with nut.
3. the anti-tilting apparatus for front swing-machine as claimed in claim 1 is characterized in that: the aperture is arranged greater than circular hole or the oval hole of described forward and backward pin diameter on the lower ear plate of described link span.
4. the anti-tilting apparatus for front swing-machine as claimed in claim 1 is characterized in that: there is counterweight the below of described back steeraxle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320051697 CN203065067U (en) | 2013-01-30 | 2013-01-30 | Tipping-preventing device for front-handling mobile crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320051697 CN203065067U (en) | 2013-01-30 | 2013-01-30 | Tipping-preventing device for front-handling mobile crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203065067U true CN203065067U (en) | 2013-07-17 |
Family
ID=48763882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320051697 Expired - Lifetime CN203065067U (en) | 2013-01-30 | 2013-01-30 | Tipping-preventing device for front-handling mobile crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203065067U (en) |
-
2013
- 2013-01-30 CN CN 201320051697 patent/CN203065067U/en not_active Expired - Lifetime
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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: 20130717 |
|
| CX01 | Expiry of patent term |