CN202864742U - Manual self-lock translation mechanism - Google Patents
Manual self-lock translation mechanism Download PDFInfo
- Publication number
- CN202864742U CN202864742U CN2012204056888U CN201220405688U CN202864742U CN 202864742 U CN202864742 U CN 202864742U CN 2012204056888 U CN2012204056888 U CN 2012204056888U CN 201220405688 U CN201220405688 U CN 201220405688U CN 202864742 U CN202864742 U CN 202864742U
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- CN
- China
- Prior art keywords
- ratchet
- gear
- ratchet wheel
- translation mechanism
- end cap
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a manual cantilever crane, and discloses a manual self-lock translation mechanism, wherein the structure of a translation drive device (2) is that a gear shaft (13) passes through a wire rope reel (16), a box body (19) and an end cover (18); the wire rope reel (16) is driven by a duplicate gear (14) and an inner gear (15); a ratchet wheel center (12) is fixed on the gear shaft (13) through a key and a pin on the outer side of the end cover (18), and is orderly provided with a ratchet wheel (1) with a friction plate (22), a ratchet wheel sleeve (10) with a T-shaped inner thread, and a stop dowel (21); the stop dowel (21) passes through the gear shaft (13), so that the ratchet wheel sleeve (10) drives the gear shaft (13) to rotate when rotating anticlockwise; a chain wheel base (9) with a chain wheel (8) is fastened on the ratchet wheel sleeve (10) by a bolt; a lug connecting seat (20) is arranged on the end cover (18), and a pawl (17) meshed with the ratchet wheel (11) is arranged inside the lug connecting seat (20). By adopting the manual self-lock translation mechanism, the situation that a pulley with suspended heavy objects does not move when a crane boom elastically deforms can be ensured.
Description
Technical field
The utility model belongs to the weight-lifting equipment technical field, particularly a kind of manual boom crane.
Background technology
Unconditionally use in the open air in the situation of the power hoisting equipment such as automobile crane, need to adopt manually boom crane as shown in Figure 1.Because of structural limitations, elastic deformation can occur in the boom crane arm in hanging the process of carrying, therefore the translation mechanism on it carries out the function of parallel motion except possessing by cable traction weight coaster, and auto-lock function in the time of also will possessing level run guarantees not occur slippery motion.At present also there is not to satisfy the product of above-mentioned requirements.
The utility model content
The purpose of this utility model is: a kind of translation mechanism with auto-lock function is provided.
The technical solution of the utility model is: a kind of manual self-locking type translation mechanism comprises: translation driving device, track adjusting wheel, steel rope, tightening device, coaster, slide fastener; It is characterized in that: the structure of described translation driving device is: by the cable drum that dual gear and inner gear drive, encapsulate casing and the end cap of described dual gear, described inner gear and described cable drum by gear wheel shaft; In the described end cap outside, the ratchet heart is fixed on the described gear wheel shaft by key, pin, and ratchet with friction lining is housed successively, screw in the T-shaped outside thread of the described ratchet heart with the ratchet sleeve of T-shaped negative thread, pass and drive the stop pin that described gear wheel shaft rotates when described gear wheel shaft makes described ratchet sleeve left-hand revolution, described chain pulley seat with sprocket wheel uses bolted on described ratchet sleeve, is provided with the lug seat at described end cap, the ratchet that in-built and described ratchet is meshed.
The utility model horizontal translation function is good, reliable, motion does not interfere with each other when being synchronized with the movement with braking, can satisfy in the situation that to use power, manually finish hoisting hook and carry translation functions in the process, also can guarantee in the situation that crane arm generation elastic deformation, the coaster that hangs weight is thereupon mobile.
Description of drawings
Accompanying drawing 1 is applied in manually boom crane schematic diagram for the utility model;
Accompanying drawing 2 is translation driving device cutaway view in the utility model.
The specific embodiment
Embodiment 1: referring to accompanying drawing, a kind of manual self-locking type translation mechanism comprises: translation driving device 2, track adjusting wheel 3, steel rope 4, tightening device 5, coaster 6, slide fastener 7; It is characterized in that: the structure of described translation driving device 2 is: by the cable drum 16 that dual gear 14 and inner gear 15 drive, encapsulate the casing 19 and end cap 18 of described dual gear 14, described inner gear 15 and described cable drum 16 by gear wheel shaft 13; In described end cap 18 outsides, the ratchet heart 12 is fixed on the described gear wheel shaft 13 by key, pin, and ratchet 11 with friction lining 22 is housed successively, screw in the T-shaped outside thread of the described ratchet heart 12 with the ratchet sleeve 10 of T-shaped negative thread, pass and drive the stop pin 21 that described gear wheel shaft 13 rotates when described gear wheel shaft 13 makes described ratchet sleeve 10 left-hand revolution, described chain pulley seat 9 usefulness bolted with sprocket wheel 8 are on described ratchet sleeve 10, be provided with lug seat 20 at described end cap 18, the ratchet 17 that in-built and described ratchet 11 is meshed.
The principle of self-locking utilizes tractive force to realize.When the coaster 6 that translation driving device 2 draws operated on the arm 1, arm 1 slideway itself had 3 ° of inclination angles that make progress, and this inclination angle makes the coaster 6 with weight produce an one direction and possibility so and the gravity of natural downslide at arm 1.Drag friction power when this tractive force is namely braked.
As can be seen from Figure 2: when being rotated in the forward sprocket wheel 8, the chain pulley seat 9 that connects as one and with the ratchet sleeve 10 of T-shaped negative thread, on with the T-shaped externally threaded ratchet heart 12, screwed left, cause the brake disk surface of ratchet sleeve 10 to begin to contact with friction lining on the ratchet 11, when continuing rotation ratchet sleeve 10, begin to introduce tractive force and add to gradually maxim backgear axle 13 and begin rotation.After the tractive force motion stops, thereby still there is the self-locking of formation one direction in friction force.
When left-hand revolution sprocket wheel 8, ratchet sleeve 10 separates with friction lining on the ratchet 11, and after the block that protrudes on the ratchet sleeve 10 and the stop pin 21 on the gear wheel shaft 13 were collided, driven gear axle 13 was made left-hand revolution.At this moment, ratchet 11 and ratchet 17 do not move, and ratchet sleeve 10 rotates in the endoporus of ratchet 11, and the weight coaster begins to another direction motion.If want braking and self-locking after motion stops, then need ratchet sleeve 10 is rotated more than 1/2 circle in the direction of the clock, allow the brake disk surface of ratchet sleeve 10 contact with friction lining on the ratchet 11, stop motion after friction force reaches maxim, braking mode then forms self-locking.
Embodiment 2: in embodiment 1 described manual self-locking type translation mechanism, described casing 19 adopts high-strength aluminum alloy material with end cap 18, thereby light weight, durable, anticorrosive, satisfies the job requirement of stressed member; Described friction lining 22 adopts the high performance grinding liner, thereby stable friction factor, does not damage braking position and insensitive to water and smog, and braking effect is relatively stable.
Claims (2)
1. a manual self-locking type translation mechanism comprises: translation driving device (2), track adjusting wheel (3), steel rope (4), tightening device (5), coaster (6), slide fastener (7); It is characterized in that: the structure of described translation driving device (2) is: by the cable drum (16) that dual gear (14) and inner gear (15) drive, encapsulate the casing (19) and end cap (18) of described dual gear (14), described inner gear (15) and described cable drum (16) by gear wheel shaft (13); In described end cap (18) outside, the ratchet heart (12) passes through key, pin is fixed on the described gear wheel shaft (13), and be equipped with successively the band friction lining (22) ratchet (11), screw in the T-shaped outside thread of the described ratchet heart (12) with the ratchet sleeve (10) of T-shaped negative thread, pass and drive the stop pin (21) that described gear wheel shaft (13) rotates when described gear wheel shaft (13) makes described ratchet sleeve (10) left-hand revolution, described chain pulley seat with sprocket wheel (8) (9) uses bolted on described ratchet sleeve (10), be provided with lug seat (20) at described end cap (18), the ratchet (17) that in-built and described ratchet (11) is meshed.
2. manual self-locking type translation mechanism according to claim 1 is characterized in that: described casing (19) and end cap (18) employing high-strength aluminum alloy material; Described friction lining (22) adopts the high performance grinding liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204056888U CN202864742U (en) | 2012-08-14 | 2012-08-14 | Manual self-lock translation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204056888U CN202864742U (en) | 2012-08-14 | 2012-08-14 | Manual self-lock translation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202864742U true CN202864742U (en) | 2013-04-10 |
Family
ID=48031482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204056888U Expired - Fee Related CN202864742U (en) | 2012-08-14 | 2012-08-14 | Manual self-lock translation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202864742U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293330A (en) * | 2015-11-18 | 2016-02-03 | 镇江华虹机械有限公司 | Automatically-controlled labor-saving winch for integrated breeding industry |
| CN107601314A (en) * | 2017-09-03 | 2018-01-19 | 邱泽林 | A kind of steel wire rope jack |
-
2012
- 2012-08-14 CN CN2012204056888U patent/CN202864742U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293330A (en) * | 2015-11-18 | 2016-02-03 | 镇江华虹机械有限公司 | Automatically-controlled labor-saving winch for integrated breeding industry |
| CN107601314A (en) * | 2017-09-03 | 2018-01-19 | 邱泽林 | A kind of steel wire rope jack |
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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: 20130410 Termination date: 20150814 |
|
| EXPY | Termination of patent right or utility model |