CN111302217A - Adjustable crane trolley limiting device with buffer structure - Google Patents
Adjustable crane trolley limiting device with buffer structure Download PDFInfo
- Publication number
- CN111302217A CN111302217A CN201811507273.XA CN201811507273A CN111302217A CN 111302217 A CN111302217 A CN 111302217A CN 201811507273 A CN201811507273 A CN 201811507273A CN 111302217 A CN111302217 A CN 111302217A
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- China
- Prior art keywords
- movable
- limiting
- trolley
- fixed
- block
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
- B66C7/16—Devices specially adapted for limiting trolley or crane travel; Arrangements of buffer-stops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
- B66C7/08—Constructional features of runway rails or rail mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention discloses an adjustable crane trolley limiting device with a buffer structure, which comprises a supporting column, a movable rail and a suspension mechanism, wherein the movable rail is horizontally fixed at the top end of the supporting column, and the longitudinal section of the movable rail is of an I-shaped structure; two limiting assemblies which are oppositely arranged are respectively arranged at the tail end and the head end of the movable track, and the limiting assemblies correspond to the movable trolley; a supporting strip and an auxiliary limiting strip are respectively fixed on the outer side surface of the movable trolley, and a stabilizing component is fixed on the bottom surface of the supporting strip; the front end and the tail end of the movable track are respectively provided with the limiting assemblies with the buffering characteristic, and the limiting assemblies can limit the movement of the trolley and gradually reduce the speed of the trolley until the trolley stops, so that the trolley is safer to use; the position of the limiting component can be properly adjusted through the arrangement of the adjusting component, namely the limit position of the trolley is controlled; the arrangement of the stabilizing component can ensure that the movement of the trolley is safer and more stable.
Description
Technical Field
The invention belongs to the technical field of cranes, and particularly relates to an adjustable crane trolley limiting device with a buffer structure.
Background
The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. The main characteristics of the crane are: the traveling cab and the crane control cab are integrated and are formed by the evolution of a crawler crane (crawler crane), the crawler and the traveling support part of the traveling mechanism are changed into a chassis with tires, the defect that a crawler plate of the crawler crane (crawler crane) damages the road surface is overcome, and the material handling machine belongs to material handling machinery; the hoisting equipment has the working characteristics of intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle alternately work, so that the development and the use of the crane on the market are more and more extensive.
The existing crane only installs a limit block on the movable track to limit the movable range of the movable trolley, but only limits the movable trolley through the limit block, so that the potential safety hazard is great, and due to the lack of a buffer structure, the limit block and the movable trolley can be damaged in different degrees after colliding with the movable trolley, so that the service life of the crane is seriously affected.
Disclosure of Invention
The invention aims to provide an adjustable crane trolley limiting device with a buffer structure, which aims to solve the problems that the conventional crane provided in the background art is usually provided with only one limiting block on a movable rail to limit the movable range of a movable trolley, but the limiting is only carried out through the limiting block, so that a great potential safety hazard exists, and due to the lack of the buffer structure, after the limiting block collides with the movable trolley, the limiting block and the movable trolley are damaged to different degrees, so that the service life of the crane is seriously influenced.
In order to achieve the purpose, the invention provides the following technical scheme: an adjustable limiting device of a crane trolley with a buffer structure comprises a supporting column, a movable rail and a suspension mechanism, wherein the movable rail is horizontally fixed at the top end of the supporting column, and the longitudinal section of the movable rail is of an I-shaped structure; the suspension mechanism comprises two oppositely arranged movable trolleys, a driving box arranged at the lower part of each movable trolley, a driving motor fixed on the outer side surface of each driving box and a lifting hook arranged at the lower part of each driving box; two limiting assemblies which are oppositely arranged are respectively arranged at the tail end and the head end of the movable track, and the limiting assemblies correspond to the movable trolley; the head end and the tail end of the inner bottom surface of the movable track are respectively provided with two groups of stable notches which are oppositely arranged, and a positioning track groove is arranged between the two groups of stable notches at the head end and the tail end; a supporting strip and an auxiliary limiting strip are respectively fixed on the outer side surface of the movable trolley, a space capable of clamping the movable track is reserved between the supporting strip and the auxiliary limiting strip, and a stabilizing component is fixed on the bottom surface of the supporting strip; the head end of the movable track is also provided with two adjusting components for adjusting the head end and the limiting component.
Preferably, spacing subassembly includes movable block, base and expanding spring B, set up the confession in the base the activity chamber B of movable block tip embedding, the one end of movable block imbeds with reciprocating motion in the activity chamber B, the other end stretches out activity chamber B, expanding spring B distributes the embedding end terminal surface of movable block with between the chamber end in activity chamber B.
Preferably, two limiting rail grooves B which are distributed oppositely are formed in the side wall of the movable cavity B, a limiting convex block B matched with the limiting rail grooves B is fixed on the outer surface of the embedding end of the movable block, and a stop block B is fixed on the inner side of a port of the limiting rail groove B.
Preferably, stabilize the subassembly including stabilizing bullet piece and expanding spring A, the confession has been seted up on the bottom surface of support strip stabilize the activity chamber A of bullet piece tip embedding, the one end of stabilizing bullet piece imbeds with reciprocating motion in the activity chamber A, the other end stretches out activity chamber A, expanding spring A distributes stabilize the embedding end terminal surface of bullet piece with between the chamber roof of activity chamber A.
Preferably, two limiting rail grooves A which are distributed oppositely are formed in the side wall of the movable cavity A, a limiting bump A matched with the limiting rail groove A is fixed on the outer surface of the embedding end of the stable elastic block, and a stop block A is fixed on the inner side of the port of the limiting rail groove A.
Preferably, the extension end of the stabilizing elastic block is matched with the stabilizing notch to form a hemispherical structure, the longitudinal section of the positioning rail groove is of a semicircular structure, and the two ends of the positioning rail groove are of quarter spherical structures respectively; each group of the stabilizing notches are respectively provided with a plurality of stabilizing notches along the moving direction of the movable trolley.
Preferably, the adjusting assembly comprises a base mounting block, a supporting block, a screw rod nut and a screw rod, wherein two pairs of the supporting blocks are fixed at the head end of the movable track, a through hole for the screw rod to penetrate through is formed in each supporting block, and the screw rod nut is fixed in the through hole and connected with the screw rod in a threaded screwing mode; the base mounting block is fixed at one end of the screw rod, a bearing is fixed at the joint of the base mounting block and the screw rod, and a hand wheel is fixed at the other end of the screw rod; the base is fixed on the base mounting block.
Preferably, the device further comprises a power line and a control handle which are respectively electrically connected with the driving motor.
Compared with the prior art, the invention has the beneficial effects that:
(1) the limiting assemblies with the buffering characteristic are respectively arranged at the head end and the tail end of the movable track, when the trolley moves to the limit positions of the head end and the tail end of the movable track, the limiting assemblies can limit the movement of the trolley, the speed of the trolley is gradually reduced until the trolley stops, and the trolley is safer to use;
(2) the position of the limiting component can be properly adjusted through the arrangement of the adjusting component, namely the limit position of the trolley is controlled;
(3) the arrangement of the stabilizing component can ensure that the movement of the trolley is safer and more stable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial front view of the present invention;
FIG. 3 is a side view of the movable rail of the present invention;
FIG. 4 is a schematic top sectional view of the movable rail of the present invention;
FIG. 5 is a schematic side view of the mobile cart of the present invention;
FIG. 6 is an enlarged cross-sectional view of part A of FIG. 5 according to the present invention;
FIG. 7 is a front cross-sectional structural view of a stop assembly of the present invention;
FIG. 8 is a side cross-sectional structural schematic view of the adjustment assembly of the present invention;
in the figure: 1. a support pillar; 2. a movable track; 3. a movable trolley; 4. a drive motor; 5. a hook; 6. a control handle; 7. a drive cartridge; 8. a power line; 9. a stabilizing notch; 10. positioning the rail groove; 11. supporting the strip; 12. auxiliary limiting strips; 13. a telescopic spring A; 14. a movable cavity A; 15. a limiting rail groove A; 16. a limiting bump A; 17. a block A; 18. stabilizing the bullet block; 19. a movable block; 20. a base; 21. a base mounting block; 22. a movable cavity B; 23. a telescopic spring B; 24. a limiting rail groove B; 25. a limiting bump B; 26. a stop block B; 27. an adjustment assembly; 28. a bearing; 29. perforating; 30. a support block; 31. a hand wheel; 32. a feed screw nut; 33. and a screw rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, the present invention provides a technical solution: an adjustable crane trolley limiting device with a buffer structure comprises a supporting column 1, a movable rail 2 and a suspension mechanism, wherein the movable rail 2 is horizontally fixed at the top end of the supporting column 1, and the longitudinal section of the movable rail 2 is of an I-shaped structure; the suspension mechanism comprises two oppositely arranged movable trolleys 3, a driving box 7 arranged at the lower part of each movable trolley 3, a driving motor 4 fixed on the outer side surface of each driving box 7, a lifting hook 5 arranged at the lower part of each driving box 7, a power cord 8 and a control handle 6 which are electrically connected with the driving motors 4 respectively; two oppositely-arranged limiting assemblies are respectively mounted at the tail end and the head end of the movable track 2, the limiting assemblies correspond to the movable trolley 3 and comprise a movable block 19, a base 20 and a telescopic spring B23, a movable cavity B22 for embedding the end part of the movable block 19 is formed in the base 20, one end of the movable block 19 can be embedded into the movable cavity B22 in a reciprocating manner, the other end of the movable block extends out of the movable cavity B22, the telescopic spring B23 is distributed between the end face of the embedded end of the movable block 19 and the bottom of the movable cavity B22, two oppositely-distributed limiting track grooves B24 are formed in the side wall of the movable cavity B22, a limiting bump B25 matched with the limiting track groove B24 is fixed on the outer surface of the embedded end of the movable block 19, and a stop block B26 is fixed on the inner side of the port of the limiting track groove B; the head end and the tail end of the inner bottom surface of the movable track 2 are respectively provided with two groups of stable notches 9 which are oppositely arranged, and a positioning rail groove 10 is arranged between the two groups of stable notches 9 at the head end and the tail end; a supporting strip 11 and an auxiliary limiting strip 12 are respectively fixed on the outer side surface of the movable trolley 3, a space capable of clamping the movable rail 2 is reserved between the supporting strip 11 and the auxiliary limiting strip 12, a stabilizing component is fixed on the bottom surface of the supporting strip 11, the stabilizing component comprises a stabilizing elastic block 18 and a telescopic spring A13, a movable cavity A14 for embedding the end part of the stabilizing elastic block 18 is formed in the bottom surface of the supporting strip 11, one end of the stabilizing elastic block 18 can be embedded into the movable cavity A14 in a reciprocating manner, the other end of the stabilizing elastic block extends out of the movable cavity A14, the telescopic spring A13 is distributed between the end surface of the embedding end of the stabilizing elastic block 18 and the top wall of the movable cavity A14, two limiting rail grooves A15 which are distributed oppositely are formed in the side wall of the movable cavity A14, a limiting bump A16 matched with the limiting rail groove A15 is fixed on the outer surface of the embedding end of the stabilizing elastic block 18, and a stop A17 is fixed on; the head end of the movable track 2 is also provided with two adjusting components 27 for adjusting head end limiting components, each adjusting component 27 comprises a base mounting block 21, a supporting block 30, a screw rod nut 32 and a screw rod 33, two pairs of supporting blocks 30 are fixed at the head end of the movable track 2, a through hole 29 for the screw rod 33 to penetrate through is formed in each supporting block 30, and the screw rod nut 32 is fixed in the through hole 29 and connected with the screw rod 33 in a threaded screwing mode; the base mounting block 21 is fixed at one end of a screw rod 33, a bearing 28 is fixed at the joint of the base mounting block and the screw rod 33, and a hand wheel 31 is fixed at the other end of the screw rod 33; the base 20 is fixed to a base mounting block 21.
In this embodiment, preferably, the protruding end of the stabilizing spring block 18 is matched with the stabilizing notch 9 to form a hemispherical structure, the longitudinal section of the positioning rail groove 10 is a semicircular structure, and two ends of the positioning rail groove are respectively of a quarter of spherical structure; each group of stabilizing notches 9 is respectively provided with a plurality of notches along the moving direction of the movable trolley 3.
The working principle and the using process of the invention are as follows: the lifting and descending of the lifting hook 5 can be controlled by the control handle 6, and the movable trolley 3 can be controlled to do reciprocating motion along the movable track 2;
when the movable trolley 3 moves to the limit position of the head end or the tail end of the movable track 2, the side wall of the movable trolley 3 contacts the movable block 19, the movable block 19 moves a short distance towards the movable cavity B22, the internal extension spring B23 is continuously compressed, the elastic potential energy is continuously accumulated by the extension spring B23, and the speed of the movable trolley 3 is gradually reduced until the movable trolley stops;
in addition, because the extension end of the stabilizing elastic block 18 is matched with the stabilizing notch 9 to form a hemispherical structure, the longitudinal section of the positioning rail groove 10 is of a semicircular structure, two ends of the positioning rail groove are of quarter spherical structures respectively, a plurality of stabilizing notches 9 are arranged in each group along the moving direction of the movable trolley 3 respectively, one end of the stabilizing elastic block 18 can be embedded into the movable cavity A14 in a reciprocating manner, the other end of the stabilizing elastic block extends out of the movable cavity A14, and the extension springs A13 are distributed between the end surface of the embedding end of the stabilizing elastic block 18 and the top wall of the cavity of the movable cavity A14; when the movable trolley 3 moves to the position where the head end or the tail end of the movable track 2 is close to the limit position, under the elastic acting force of the telescopic spring A13, the extending end of the stable elastic block 18 is ensured to be always embedded into the stable notch 9 during the movement of the movable trolley 3, and at the moment, the movable trolley 3 is subjected to intermittent resistance, and the speed is reduced;
when the position of the limiting component needs to be adjusted, the hand wheel 31 is directly rotated, the through hole 29 for the screw rod 33 to penetrate through is formed in the supporting block 30, the screw rod nut 32 is fixed in the through hole 29 and connected with the screw rod 33 in a threaded screwing mode, and the position of the limiting component can be adjusted due to the fact that the screw rod nut 32 is matched with the screw rod 33 in a threaded screwing mode.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an adjustable have buffer structure's monkey stop device, includes support column (1), activity track (2) and suspends the mechanism in midair, activity track (2) level is fixed in the top of support column (1), its characterized in that: the longitudinal section of the movable rail (2) is of an I-shaped structure; the suspension mechanism comprises two movable trolleys (3) which are oppositely arranged, a driving box (7) which is arranged at the lower part of each movable trolley (3), a driving motor (4) which is fixed on the outer side surface of each driving box (7) and a lifting hook (5) which is arranged at the lower part of each driving box (7); two limiting assemblies which are oppositely arranged are respectively arranged at the tail end and the head end of the movable track (2), and the limiting assemblies correspond to the movable trolley (3); the head end and the tail end of the inner bottom surface of the movable track (2) are respectively provided with two groups of stable notches (9) which are oppositely arranged, and a positioning rail groove (10) is arranged between the two groups of stable notches (9) at the head end and the tail end; a supporting strip (11) and an auxiliary limiting strip (12) are respectively fixed on the outer side surface of the movable trolley (3), a gap capable of clamping the movable rail (2) is reserved between the supporting strip (11) and the auxiliary limiting strip (12), and a stabilizing component is fixed on the bottom surface of the supporting strip (11); the head end of the movable track (2) is also provided with two adjusting components (27) for adjusting the head end and the limiting component.
2. The adjustable crane trolley limiting device with the buffering structure as claimed in claim 1, wherein: spacing subassembly includes movable block (19), base (20) and expanding spring B (23), set up the confession in base (20) the activity chamber B (22) of movable block (19) tip embedding, the one end of movable block (19) can imbed with reciprocating activity in the activity chamber B (22), the other end stretches out activity chamber B (22), expanding spring B (23) distribute be in the embedding end terminal surface of movable block (19) with between the chamber end of activity chamber B (22).
3. The adjustable crane trolley limiting device with the buffering structure as claimed in claim 2, wherein: two limiting rail grooves B (24) which are distributed oppositely are formed in the side wall of the movable cavity B (22), a limiting convex block B (25) matched with the limiting rail grooves B (24) is fixed on the outer surface of an embedding end of the movable block (19), and a stop block B (26) is fixed on the inner side of a port of each limiting rail groove B (24).
4. The adjustable crane trolley limiting device with the buffering structure as claimed in claim 1, wherein: stabilize the subassembly including stabilizing bullet piece (18) and expanding spring A (13), the confession has been seted up to the bottom surface of support strip (11) stabilize movable chamber A (14) of bullet piece (18) tip embedding, the one end of stabilizing bullet piece (18) can imbed with reciprocating activity in activity chamber A (14), the other end stretches out activity chamber A (14), expanding spring A (13) distribute stabilize the embedding end terminal surface of bullet piece (18) with between the chamber roof of activity chamber A (14).
5. The adjustable crane trolley limiting device with the buffering structure as claimed in claim 4, wherein: two limiting rail grooves A (15) which are distributed oppositely are formed in the side wall of the movable cavity A (14), a limiting convex block A (16) matched with the limiting rail grooves A (15) is fixed on the outer surface of an embedding end of the stable elastic block (18), and a stop block A (17) is fixed on the inner side of a port of each limiting rail groove A (15).
6. The adjustable crane trolley limiting device with the buffering structure as claimed in claim 4, wherein: the extending end of the stabilizing elastic block (18) is matched with the stabilizing notch (9) to form a hemispherical structure, the longitudinal section of the positioning rail groove (10) is of a semicircular structure, and the two ends of the positioning rail groove are of quarter spherical structures respectively; each group of the stabilizing notches (9) are respectively provided with a plurality of stabilizing notches along the moving direction of the movable trolley (3).
7. The adjustable crane trolley limiting device with the buffering structure as claimed in claim 2, wherein: the adjusting assembly (27) comprises a base mounting block (21), supporting blocks (30), a screw rod nut (32) and a screw rod (33), two pairs of the supporting blocks (30) are fixed at the head end of the movable track (2), a through hole (29) for the screw rod (33) to penetrate through is formed in each supporting block (30), and the screw rod nut (32) is fixed in each through hole (29) and connected with the screw rod (33) in a threaded screwing mode; the base mounting block (21) is fixed at one end of the screw rod (33), a bearing (28) is fixed at the joint of the base mounting block and the screw rod, and a hand wheel (31) is fixed at the other end of the screw rod (33); the base (20) is fixed on the base mounting block (21).
8. The adjustable crane trolley limiting device with the buffering structure as claimed in claim 1, wherein: the device also comprises a power line (8) and a control handle (6), which are respectively electrically connected with the driving motor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507273.XA CN111302217A (en) | 2018-12-11 | 2018-12-11 | Adjustable crane trolley limiting device with buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507273.XA CN111302217A (en) | 2018-12-11 | 2018-12-11 | Adjustable crane trolley limiting device with buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111302217A true CN111302217A (en) | 2020-06-19 |
Family
ID=71150543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811507273.XA Withdrawn CN111302217A (en) | 2018-12-11 | 2018-12-11 | Adjustable crane trolley limiting device with buffer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111302217A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009006103A1 (en) * | 2009-01-26 | 2010-10-14 | Abus Kransysteme Gmbh | Overhead traveling crane device, has buffer rod that is not connected to attachment of stop surfaces of mutual overhead traveling cranes, where buffer rod is jointly supported at support arm of buffer device |
| CN202027151U (en) * | 2011-01-26 | 2011-11-09 | 李志成 | Damper arranged on sliding rail of drawer |
| CN203723703U (en) * | 2011-01-13 | 2014-07-23 | 肖又松 | Slide rail component |
| CN104724602A (en) * | 2015-02-09 | 2015-06-24 | 镇江维斯特船用设备有限公司(外商独资) | Synchronous traveling device of super-low-altitude double-beam engine room crane |
| CN107673195A (en) * | 2017-11-07 | 2018-02-09 | 河南恒远恒山工业有限公司 | A kind of crane winch trolley |
| CN107686050A (en) * | 2017-08-24 | 2018-02-13 | 芜湖市长江起重设备制造有限公司 | A kind of New overhead travelling crane oil pressure anticollision device, collision-prevention device |
-
2018
- 2018-12-11 CN CN201811507273.XA patent/CN111302217A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009006103A1 (en) * | 2009-01-26 | 2010-10-14 | Abus Kransysteme Gmbh | Overhead traveling crane device, has buffer rod that is not connected to attachment of stop surfaces of mutual overhead traveling cranes, where buffer rod is jointly supported at support arm of buffer device |
| CN203723703U (en) * | 2011-01-13 | 2014-07-23 | 肖又松 | Slide rail component |
| CN202027151U (en) * | 2011-01-26 | 2011-11-09 | 李志成 | Damper arranged on sliding rail of drawer |
| CN104724602A (en) * | 2015-02-09 | 2015-06-24 | 镇江维斯特船用设备有限公司(外商独资) | Synchronous traveling device of super-low-altitude double-beam engine room crane |
| CN107686050A (en) * | 2017-08-24 | 2018-02-13 | 芜湖市长江起重设备制造有限公司 | A kind of New overhead travelling crane oil pressure anticollision device, collision-prevention device |
| CN107673195A (en) * | 2017-11-07 | 2018-02-09 | 河南恒远恒山工业有限公司 | A kind of crane winch trolley |
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| PB01 | Publication | ||
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Application publication date: 20200619 |