CN2885812Y - Overload limiter for hand-drive hoist - Google Patents
Overload limiter for hand-drive hoist Download PDFInfo
- Publication number
- CN2885812Y CN2885812Y CN 200620102766 CN200620102766U CN2885812Y CN 2885812 Y CN2885812 Y CN 2885812Y CN 200620102766 CN200620102766 CN 200620102766 CN 200620102766 U CN200620102766 U CN 200620102766U CN 2885812 Y CN2885812 Y CN 2885812Y
- Authority
- CN
- China
- Prior art keywords
- pressure ring
- bangle wheel
- braking platen
- limit
- braking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A novel anti-overloading device for chain hoists comprises a braking pressure disk, a fraction flack, a handed chain wheel, a pressure ring, and a load-limiting spring. The braking pressure disk is arranged on a long shaft, one end of which clings to a braking device, and the handed chain wheel, pressure ring and the load-limiting spring are arranged on the other end consecutively. Fraction flacks are provided between the braking pressure disk and the handed chain wheel, and between the handed chain wheel and the pressure ring. The load-limiting spring is fixed with an adjusting nut and presses the pressure ring, the fraction flack and the handed chain wheel firmly on the braking pressure disk. Compare with the prior arts, the novel anti-overloading device is advantaged in that it is safe, reliable, convenient to adjust, and easy to manufacture.
Description
Technical field
The utility model relates to a kind of overload restraint device of bottle gouard moved by hands, is applied to small-sized elevator machinery.
Background technology
Common in the market bottle gouard moved by hands overload limit for tonnage mechanism ubiquity such defective: when limit for tonnage bottle gouard moved by hands lifting (traction) object, when the weight of object just during critical conditions at the limit for tonnage bottle gouard moved by hands, object might take place can spur or pull bottle gouard moved by hands when rising, but when descending (unclamping), not necessarily can spur or pull bottle gouard moved by hands, use very inconvenient like this, object aloft can not descend, and has hidden danger on safety; And the load limitation device of existing bottle gouard moved by hands exists adjusts inconvenience, the problem that stability is bad.
The utility model content
At the problems referred to above, the purpose of this utility model is to provide a kind of New Manual Calabash Overladen Restricting Means of a kind of property easy to use, safe, good stability.
The utility model takes following technical scheme to realize above-mentioned purpose: a kind of New Manual Calabash Overladen Restricting Means, major axis is installed on frame, it is characterized in that: described overload restraint device comprises the braking platen, friction lining, the bangle wheel, pressure ring, the limit for tonnage spring, the braking platen is installed on the major axis, one end and brake equipment fit, the other end is equipped with the bangle wheel successively, pressure ring and limit for tonnage spring, between braking platen and the bangle wheel, all be provided with friction lining between bangle wheel and the pressure ring, the limit for tonnage spring is fixed by adjustment nut and with pressure ring, friction lining and bangle wheel are pressed on the braking platen.
Of the present utility modelly further be set to: between bangle wheel, braking platen ratchet, elastic spring are installed also, the endoporus of bangle wheel is formed a mono-directional overrun clutch jointly with cylindrical, ratchet, the elastic spring of braking platen.
Principle of work of the present utility model is: bottle gouard moved by hands is when the weight of lifting (traction) rated load weight, because the pressure effect of limit for tonnage spring, pressure ring, friction lining, bangle wheel, friction lining, braking platen are pressed into one, whole load limitation device can be made cw or left-hand revolution together, forms the normal operation of bottle gouard moved by hands; When bottle gouard moved by hands weight in use occurs just on the limit for tonnage cucurbit in limited time when (being critical conditions), and the required friction force between braking platen, friction lining, bangle wheel (commutation ratchet), friction lining that causes of weight is just in the critical conditions of limit for tonnage spring preset value thus, this moment, bottle gouard moved by hands might dally behind lifting (traction) segment distance, the mono-directional overrun clutch work of being made up of braking platen, friction lining, bangle wheel, friction lining when descending (unclamping) makes weight can descend (unclamping); When bottle gouard moved by hands when the weight of object occur to surpass setting value at work, this moment is owing to the required friction force between braking platen, friction lining, bangle wheel, friction lining that overload causes has surpassed, this moment, bangle was taken turns skid, and object keeps original position motionless, and cucurbit plays the limit for tonnage effect thus.
The utility model is compared with the existing market product, have following distinguishing feature and good effect: 1, safe reliability height: when bottle gouard moved by hands is operated in critical conditions, overriding clutch load limitation device in the utility model can guarantee that bottle gouard moved by hands can descend or unclamp, when overload appears in bottle gouard moved by hands, the automatic skid of load limitation device meeting, bottle gouard moved by hands quits work automatically, has guaranteed operator's personal safety; 2, simple in structure being convenient to processed, and reduced productive costs; 3, easy to adjust, only need to regulate adjustment nut and get final product according to the preset value of bottle gouard moved by hands.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the utility model is installed in the running condition figure on the chain block.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model comprises braking platen 6, friction lining 3, bangle wheel 1, pressure ring 7, limit for tonnage spring 8, major axis 11 is installed on the frame 2, braking platen 6 is installed on the major axis 11, one end of braking platen 6 sticks together mutually with an end of brake equipment 10, and the other end is fixing by the adjustment nut 9 that is contained on the major axis 11; 9 at braking platen 6 and adjustment nut are equipped with bangle wheel 1, pressure ring 7 and limit for tonnage spring 8 successively, between bangle wheel, the braking platen ratchet 5, elastic spring 4 are installed, between braking platen 6 and the bangle wheel 1, all be provided with friction lining 3 between bangle wheel 1 and the pressure ring 7, limit for tonnage spring 8 is fixing and pressure ring 7, friction lining 3 and bangle are taken turns 1 be pressed on and brake on the platen 6 by adjustment nut 9.
During work, when the pulling bottle gouard moved by hands pull the weight of chain 12 lifting (traction) specified lifting weight the time, because the pressure effect of limit for tonnage spring 8, pressure ring 7, friction lining 3, bangle wheel 1, braking platen 6 are pressed into one, whole load limitation device can be made cw or left-hand revolution together, forms the normal operation of bottle gouard moved by hands; When bottle gouard moved by hands weight in use occurs just on the limit for tonnage cucurbit in limited time when (being critical conditions), and the required friction force between braking platen 6, friction lining 3, bangle wheel 1, pressure ring 7 that causes of weight is just in the critical conditions of limit for tonnage spring preset value thus, this moment, bottle gouard moved by hands might dally behind lifting (traction) segment distance, the mono-directional overrun clutch work of being made up of braking platen 6, friction lining 3, bangle wheel 1, pressure ring 7 when descending (unclamping) makes weight can descend (unclamping); When bottle gouard moved by hands when the weight of object occur to surpass setting value at work, this moment is owing to the required friction force between braking platen 6, friction lining 3, bangle wheel 1, pressure ring 7 that overload causes has surpassed, this moment, bangle was taken turns 1 skid, object keeps original position motionless, and cucurbit plays the limit for tonnage effect thus.
Claims (2)
1, a kind of New Manual Calabash Overladen Restricting Means, major axis (11) is installed on frame (2), it is characterized in that: described overload restraint device comprises braking platen (6), friction lining (3), bangle wheel (1), pressure ring (7), limit for tonnage spring (8), braking platen (6) is installed on the major axis (11), one end and brake equipment (10) fit, the other end is equipped with bangle wheel (1) successively, pressure ring (7) and limit for tonnage spring (8), between braking platen (6) and the bangle wheel (1), all be provided with friction lining (3) between bangle wheel (1) and the pressure ring (7), limit for tonnage spring (8) is fixed by adjustment nut (9) and with pressure ring (7), friction lining (3) and bangle wheel (1) are pressed on the braking platen (6).
2, a kind of New Manual Calabash Overladen Restricting Means according to claim 1, it is characterized in that: between bangle wheel (1), braking platen (6) ratchet (5), elastic spring (4) are installed also, the endoporus of bangle wheel (1) is formed a mono-directional overrun clutch jointly with cylindrical, ratchet (5), the elastic spring (4) of braking platen (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102766 CN2885812Y (en) | 2006-04-17 | 2006-04-17 | Overload limiter for hand-drive hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102766 CN2885812Y (en) | 2006-04-17 | 2006-04-17 | Overload limiter for hand-drive hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2885812Y true CN2885812Y (en) | 2007-04-04 |
Family
ID=37960902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620102766 Expired - Fee Related CN2885812Y (en) | 2006-04-17 | 2006-04-17 | Overload limiter for hand-drive hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2885812Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674187A (en) * | 2012-06-04 | 2012-09-19 | 安徽三雕起重机械有限公司 | Load limiting hand-operated chain wheel |
| CN105084242A (en) * | 2015-09-01 | 2015-11-25 | 浙江冠林机械有限公司 | Clutch of lever hoist |
| CN106219429A (en) * | 2016-08-04 | 2016-12-14 | 杭州维多利机械有限公司 | A kind of chain block load limiter |
-
2006
- 2006-04-17 CN CN 200620102766 patent/CN2885812Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674187A (en) * | 2012-06-04 | 2012-09-19 | 安徽三雕起重机械有限公司 | Load limiting hand-operated chain wheel |
| CN105084242A (en) * | 2015-09-01 | 2015-11-25 | 浙江冠林机械有限公司 | Clutch of lever hoist |
| CN106219429A (en) * | 2016-08-04 | 2016-12-14 | 杭州维多利机械有限公司 | A kind of chain block load limiter |
| CN106219429B (en) * | 2016-08-04 | 2018-06-26 | 杭州维多利机械有限公司 | A kind of chain block load limiter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shuangniao Machinery Co Ltd, Zhejiang Assignor: Zhang Wenzhong Contract fulfillment period: 2008.10.15 to 2013.10.15 Contract record no.: 2008330001831 Denomination of utility model: Overload limiter for hand-drive hoist Granted publication date: 20070404 License type: Exclusive license Record date: 20081110 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.15 TO 2013.10.15; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE SHUANGNIAO MECHANICAL CO., LTD. Effective date: 20081110 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070404 Termination date: 20130417 |