CN202465077U - Novel rail clamping device - Google Patents
Novel rail clamping device Download PDFInfo
- Publication number
- CN202465077U CN202465077U CN2012200687570U CN201220068757U CN202465077U CN 202465077 U CN202465077 U CN 202465077U CN 2012200687570 U CN2012200687570 U CN 2012200687570U CN 201220068757 U CN201220068757 U CN 201220068757U CN 202465077 U CN202465077 U CN 202465077U
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- CN
- China
- Prior art keywords
- clamp
- clamping device
- rail clamping
- clamp forceps
- forceps
- 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
The utility model discloses a novel rail clamping device. The novel rail clamping device is characterized in that the rail clamping device comprises clamp forceps, wherein the shape of a forceps mouth on the lower part of the clamp forceps is matched with that of the cross section of the middle upper part of a clamped rail; a lead screw for loosening and closing the clamp forceps is arranged at the middle part of the clamp forceps through a threaded connection hole arranged on the clamp forceps body; the upper part of the clamp forceps is arranged on a connection base through an ellipse hole machined on the clamp forceps body and a cylindrical shaft pin; a limiting switch for interlocking a power supply of a complete machine of a crane is arranged between the top of the clamp forceps and the connection base; and a hook mechanism for preventing the clamp forceps from falling down in a loosening and cocking state is arranged in the middle of the connection base.
Description
Technical field
The utility model relates to parts of weight-lifting equipment, is specifically related to windbreak---the rail clamping device of hoisting crane.
Background technology
According to the regulation of " safety rules for lifting appliances (GB 6067) ",, should install failure-free wind resistance anti-skid device for the locomotive crane of outside work.Because manually rail clamping device not only simply but also practical thereby is widely used at middle-size and small-size hoisting crane.
The conventional manual rail clamping device, because simple structure, operation, easy to maintenance, economical and practical, thereby be widely used in all kinds of middle-size and small-size rail formula hoisting crane of outside work.But to be subject to the skid resistance that moment of face M causes producing less owing to the conventional manual rail clamping device, causes the manual rail clamping device of many place in operations to become ornaments because of reaching the antiskid effect.
The gripping power that traditional manual rail clamping device utilizes leading screw to produce produces certain anti-skidding power; Thereby reach windproof skidding-resistance effect; The size of its anti-skidding power is by the friction coefficient decision of gripping power and the clamp and the track of clamp and track, and the size of gripping power is determined by moment of face M that then moment of face M is then smaller because of nature person's power size decision moment of face M; Although partially manual rail clamping device utilizes toggle link principle or slide way mechanism to amplify gripping power; But the ratio that amplifies is limited, so the windproof skid resistance that the conventional manual rail clamping device can produce is just smaller.
Summary of the invention
The utility model provides a kind of novel rail clamping device in order to solve the smaller weak point of the windproof skid resistance of conventional manual rail clamping device just, and this rail clamping device utilizes the friction self-locking principle can produce enough big anti-skidding power.
The purpose of the utility model can realize through following technique measures:
The rail clamping device of the utility model comprises clamp; The jaw shape of said clamp bottom matches with the middle and upper part shape of cross section that is held track; The threaded connection hole that is provided with on through caliper body at the middle part of clamp is equipped with the screw mandrel that is used to unclamp with grip jaw, and the top of said clamp is installed on the Connection Block through elliptical aperture and the cylindrical pivot pin that processes on the caliper body; Between the top of clamp and Connection Block, be provided with the limit switch that is used for hoisting crane complete machine power interlock, be provided with at the Connection Block middle part and be used to prevent that clamp is in the hitch gear that unclamps and fall during cocked state.
The utility model principle of work is: the normal condition clamp is pressed on the track on the plane by deadweight; When hoisting crane slides; Self-locking through the clamping of clamp track; Utilize clamp self that the self-locking of track is produced skid resistance, the size of skid resistance depends on the intensity of clamp fully at this moment, has so just broken away from the limitation that receives the gripping power restriction of traditional rail clamping device; Can come the suitable clamp size of appropriate design to satisfy the needs of skid resistance size as required, make the utility model can produce bigger skid resistance in view of the above.
In order to realize that clamp freely rotates self-locking, the connecting bore on clamp top is oval slotted hole, and clamp can rotate when work smoothly like this, and makes clamp can freely be pressed in plane on the track by deadweight in normal condition.Satisfy between the coefficientoffriction of size L (oval slotted hole is the distance between the plane on the track) and B (width of clamp) and rail and clamp and concern B≤2 μ L; Can make clamp and track produce self-locking; Hoisting crane is no longer slided; Grip finger has also been done special design, so that jaw opening size and orbit gap are reasonable.
The beneficial effect of the utility model is following:
Because the utility model has acted on the simple structure of conventional manual rail clamping device, operation, easy to maintenance easy-to-use, economical and practical advantage have overcome the shortcoming of the antiskid weak effect of conventional manual rail clamping device simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the right elevation (running condition reference diagram) of Fig. 1.
Fig. 3 is the structural representation of single piece clip caliper.
Fig. 4 is the left view of Fig. 3.
The specific embodiment
To combine embodiment (accompanying drawing) to further describe below the utility model.
Like Fig. 1, shown in 2; The rail clamping device of the utility model comprises clamp 4; The jaw shape of said clamp 4 bottoms match with the middle and upper part shape of cross section that is held track (referring to Fig. 3,4); The threaded connection hole that is provided with on through caliper body at the middle part of clamp 4 is equipped with the screw mandrel 5 that is driven by handwheel that is used to unclamp with grip jaw 4, and the top of said clamp 4 is installed on the Connection Block 2 through elliptical aperture and the cylindrical pivot pin 3 that processes on the caliper body; Between the top of clamp 4 and Connection Block 2, being provided with the mechanism that is used for hoisting crane complete machine power interlock---limit switch 1 is provided with at Connection Block 2 middle parts and is used to prevent that clamp 4 is in the hitch gear 6 that unclamps and fall during cocked state.
Claims (1)
1. novel rail clamping device; It is characterized in that: it comprises clamp; The jaw shape of said clamp bottom matches with the middle and upper part shape of cross section that is held track; The threaded connection hole that is provided with on through caliper body at the middle part of clamp is equipped with the screw mandrel that is used to unclamp with grip jaw, and the top of said clamp is installed on the Connection Block through elliptical aperture and the cylindrical pivot pin that processes on the caliper body; Between the top of clamp and Connection Block, be provided with the limit switch that is used for hoisting crane complete machine power interlock, be provided with at the Connection Block middle part and be used to prevent that clamp is in the hitch gear that unclamps and fall during cocked state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200687570U CN202465077U (en) | 2012-02-29 | 2012-02-29 | Novel rail clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200687570U CN202465077U (en) | 2012-02-29 | 2012-02-29 | Novel rail clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202465077U true CN202465077U (en) | 2012-10-03 |
Family
ID=46913257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200687570U Expired - Fee Related CN202465077U (en) | 2012-02-29 | 2012-02-29 | Novel rail clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202465077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204443A (en) * | 2013-04-16 | 2013-07-17 | 抚顺永茂建筑机械有限公司 | Windtight rail clamping device of roof surface lazy arm for high-rise building |
| CN109941882A (en) * | 2019-03-28 | 2019-06-28 | 唐山百川智能机器股份有限公司 | Rail mounted car lifting J-Horner clamp rail device |
-
2012
- 2012-02-29 CN CN2012200687570U patent/CN202465077U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204443A (en) * | 2013-04-16 | 2013-07-17 | 抚顺永茂建筑机械有限公司 | Windtight rail clamping device of roof surface lazy arm for high-rise building |
| CN109941882A (en) * | 2019-03-28 | 2019-06-28 | 唐山百川智能机器股份有限公司 | Rail mounted car lifting J-Horner clamp rail device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20160229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |