CN108285101B - Double-hook chain block - Google Patents
Double-hook chain block Download PDFInfo
- Publication number
- CN108285101B CN108285101B CN201810251790.9A CN201810251790A CN108285101B CN 108285101 B CN108285101 B CN 108285101B CN 201810251790 A CN201810251790 A CN 201810251790A CN 108285101 B CN108285101 B CN 108285101B
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- CN
- China
- Prior art keywords
- wallboard
- driven disc
- brake disc
- disc
- hand
- Prior art date
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Links
- 238000000034 method Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims 1
- 230000002457 bidirectional effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
- B66D3/16—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable operated by an endless chain passing over a pulley or a sprocket
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a double-hook chain block, which comprises a right shell, a driven disc, a brake disc, a chain wheel, a long shaft, supporting rods, a lifting chain wheel and a spline hole gear, wherein the right shell is arranged on the side surface of a right wallboard, the driven disc, the brake disc, the chain wheel, a spring, a lock nut and a gasket are arranged between the right shell and the side surface of the right wallboard, the driven disc and the brake disc are connected in a ratchet mode, the left end of the long shaft is provided with a transmission tooth part which can be meshed with a sheet gear set, the right end of the long shaft vertically passes through the spline hole gear, a left wallboard, the lifting chain wheel, the right wallboard, the brake disc, the driven disc and the gasket, the inside rear part of the gasket is connected with the lock nut, a plurality of supporting rods are arranged between the left wallboard and the right wallboard, the left shell is fixedly arranged on the side surface of the left wallboard, and the sheet gear set and the spline hole gear which are connected in a meshed mode are arranged between the left wallboard and the left wallboard. The invention has the advantages of realizing bidirectional braking of the lifting chain, saving labor when lifting heavy objects, having good positioning precision, large using angle range of double hooks, and the like.
Description
[ field of technology ]
The invention relates to the technical field of chain blocks, in particular to the technical field of double-hook chain blocks.
[ background Art ]
The hand hoist is a simple to use and convenient to carry's manual hoisting machinery, it uses the annular chain as the flexible piece of hoisting, not merely can realize hanging things vertically, can realize pulling things horizontally too, suitable for installing the machine, hoisting goods in places such as the mill, mine, building site, wharf, warehouse, etc., especially can show its superiority when open air and unpowered operation, is used for small-scale apparatus and short-range handling of goods frequently. The existing chain blocks have the problems that lifting efficiency is poor due to the fact that one end of the chain blocks can only use a lower lifting hook due to unidirectional braking, more manpower is needed to be consumed in the lifting process, and the positioning progress is poor due to the fact that a pressure plate is tightly pressed by a spiral friction plate and certain slippage is caused before the pressing of the chain blocks during the braking of the chain blocks.
[ invention ]
The invention aims to solve the problems in the prior art, and provides a double-hook chain block which can enable a hoisting chain to realize bidirectional braking, saves labor when lifting a heavy object, has good positioning precision and has a large double-hook use angle range.
In order to achieve the above purpose, the invention provides a double-hook chain block, which comprises a right shell, a driven disc, a brake disc, a hand chain wheel, a long shaft, supporting rods, a lifting chain wheel and a spline hole gear, wherein a chain through groove is formed in the right shell, the right shell is fixedly arranged on the side surface of the right wall plate, a driven disc, the brake disc, the hand chain wheel with a plurality of circular arc grooves, a spring, a locking nut and a gasket are arranged between the driven disc and the driven disc, ratchets which can be mutually matched and connected are arranged on the right end of the driven disc and the left end of the brake disc, a plurality of bearings fixed by bolts are arranged on the driven disc, a hand chain is arranged on the hand chain wheel, a transmission tooth part is arranged at the left end of the long shaft, the right end of the long shaft vertically penetrates through the spline hole gear, a left wall plate, the lifting chain wheel, the right wall plate, the brake disc, the driven disc and the gasket, a plurality of supporting rods parallel to the long shaft are arranged between the left wall plate and the right wall plate, a lifting chain is arranged on the lifting chain wheel, a lifting hook and a gear set is arranged on the lifting chain wheel with the lifting chain with a plurality of lower lifting hooks, the left wall plate is fixedly arranged on the side surface of the left wall plate, the left wall plate is fixedly arranged with a gear set, and the gear set A is meshed with the long shaft, and the gear B is meshed with the gear set, and the gear B is meshed with the gear B.
Preferably, the left wallboard and the right wallboard are parallel to each other, a self-lubricating bearing is arranged between the hand-pulling chain wheel and the brake disc, and the brake disc is fixedly arranged on the right wallboard by a plurality of bolts.
Preferably, the long shaft is connected with the inner wall of the driven disc through involute splines, and the lifting chain wheel is connected with the inner wall of the spline hole gear through splines.
Preferably, the circular arc groove of the hand-pulling chain wheel can be correspondingly provided with a bearing on the driven disc, and the ratchet teeth on the brake disc and the driven disc are respectively provided with a sharp head part and a plane tooth waist.
Preferably, a needle bearing is arranged between the guide wheel and the support rod, the number of the lower lifting hooks is 2, and the included angle range of the 2 lower lifting hooks when in use is 0-180 degrees.
The invention has the beneficial effects that: according to the invention, the braking disc and the driven disc are provided with the ratchet teeth which can be mutually matched and connected, and the bidirectional braking of the lifting chain wheel can be realized in a ratchet braking mode between the braking disc and the driven disc, so that the lower lifting hook can be used at both ends of the lifting chain; the hand-pulled chain wheel is provided with a plurality of arc grooves for storing or pushing up the bearing on the driven disc so that the brake disc is separated from the driven disc, and the friction force generated when the arc grooves are contacted with the bearing on the driven disc is small, so that a user can release the braking state with small force to finish lifting the heavy object; the ratchet teeth on the brake disc and the driven disc are provided with the sharp head and the plane tooth waist, so that the brake disc and the driven disc can be positioned only at a fixed angle when being connected in a matched manner, positioning errors can be reduced, and positioning accuracy is guaranteed; a spring is arranged between the gasket and the driven disc, so that the driven disc can realize effective reset; a supporting rod is arranged between the left wallboard and the right wallboard, and a guide wheel is arranged on the supporting rod, so that the range of a use included angle between lower lifting hooks at two ends of a lifting chain is large, and the overturning of a large workpiece or a framework can be realized; a self-lubricating bearing is arranged between the hand-pulling chain wheel and the brake disc, a needle bearing is arranged between the guide wheel and the support rod, and the friction force is relatively small in the use process; the double-hook chain block is convenient to assemble, disassemble and maintain, easy to adjust and control, high in working stability, firm in structure and good in hoisting precision.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of the double hook chain block of the present invention;
FIG. 2 is a first top cross-sectional view of the double hook chain block of the present invention;
FIG. 3 is a second top cross-sectional view of the double hook chain block of the present invention;
FIG. 4 is a schematic diagram showing the overall disassembly of the double hook chain block of the present invention;
fig. 5 is a partially disassembled schematic view of the double hook chain block of the present invention.
In the figure: the device comprises a 1-right shell, a 2-driven disc, a 3-brake disc, a 4-hand-pulling chain wheel, a 5-long shaft, a 6-supporting rod, a 7-guide wheel, an 8-lifting chain wheel, a 9-splined hole gear, a 10-left shell, a 21-bearing, a 22-spring, a 41-hand-pulling chain, a 81-lifting chain and a 91-sheet gear set.
[ detailed description ] of the invention
Referring to fig. 1, 2, 3, 4 and 5, the double-hook chain block of the invention comprises a right shell 1, a driven disc 2, a brake disc 3, a hand-pulling chain wheel 4, a long shaft 5, a supporting rod 6, a lifting chain wheel 8 and a spline hole gear 9, wherein a chain through groove is arranged on the right shell 1, the right shell 1 is fixedly arranged on the side surface of a right wallboard and is provided with the driven disc 2, the brake disc 3, the hand-pulling chain wheel 4 with a plurality of arc grooves, a spring 22, a locking nut and a gasket, the right end of the driven disc 2 and the left end of the brake disc 3 are provided with ratchet teeth which can be mutually matched and connected, the driven disc 2 is provided with a plurality of bearings 21 which are fixed by bolts, the hand-pulling chain wheel 4 is provided with a hand-pulling chain 41, the left end of the long shaft 5 is provided with a transmission tooth part, the right end of the long shaft 5 vertically penetrates through the spline hole gear 9, the left wallboard, the lifting chain wheel 8, the right wallboard, the brake disc 3, the driven disc 2 and the inside of the gasket, a plurality of support rods 6 parallel to the long shaft 5 are cooperatively arranged between the left wallboard and the right wallboard, guide wheels 7 are arranged on the support rods 6, lifting chains 81 with a plurality of lower lifting hooks and an upper lifting hook are arranged on the lifting chain wheels 8, a left shell 10 is fixedly arranged on the side surface of the left wallboard, a sheet gear set 91 and a spline hole gear 9 which are in meshed connection are arranged between the left shell 10 and the left wallboard, the sheet gear set 91 comprises a sheet gear A and a sheet gear B, the sheet gear A and the sheet gear B are meshed with the transmission tooth part of the long shaft 5, the left wallboard and the right wallboard are parallel to each other, self-lubricating bearings are arranged between the hand chain wheels 4 and the brake disc 3, the brake disc 3 is fixedly arranged on the right wallboard by a plurality of bolts, the long shaft 5 and the inner wall of the driven disc 2 are connected by involute splines, the lifting chain wheel 8 is connected with the inner wall of the spline hole gear 9 through a spline, the circular arc grooves of the hand chain wheel 4 can correspondingly place the bearings on the driven disc 2, the ratchet teeth on the brake disc 3 and the driven disc 2 are respectively provided with a sharp head part and a plane tooth waist, a needle bearing is arranged between the guide wheel 7 and the support rod 6, and the number of the lower lifting hooks is 2, and the included angle range of the lower lifting hooks in use is 0-180 degrees.
The working process of the invention comprises the following steps:
the double-hook chain block can fix an upper lifting hook on a trolley or a cross beam in the working process, a hand zipper wheel 4 rotates by pulling a hand zipper chain 41, an arc groove can generate an outward thrust to a bearing 21 on a driven disc 2 in the rotating process of the hand zipper wheel 4, so that the driven disc 2 gradually approaches to a gasket until the driven disc completely abuts against the gasket, at the moment, the spring 22 is in a compressed state, the driven disc 2 rotates along with the hand zipper wheel 4, the rotation of the driven disc 2 drives a long shaft 5 to rotate, the rotation of the long shaft 5 is provided with a moving plate gear A and a moving plate gear B, the rotation of the moving plate gear A and the moving plate gear B drives a spline hole gear 9 to rotate, the spline hole gear 9 transmits a rotation moment to a lifting sprocket 8 through a spline of an inner hole, lifting chain 81 is lifted to a certain position, and then the pulling of the hand zipper chain 41 is stopped, so that the spring 22 starts to reset and drives a ratchet on the driven disc 2 to be meshed again until locking and positioning is completed, wherein an included angle between two lower lifting hooks on the lifting chain 81 is not increased by 7 degrees under the condition that the number of supporting rods is not increased, and the included angle between two left and right side walls is increased by 180 degrees and the maximum when the included angle between two lifting hooks is increased by the maximum wall plate and the maximum weight of a wall plate is increased under the condition of 180 degrees and the condition of the wall is reached.
The double-hook chain block of the invention is characterized in that the brake disc 3 and the driven disc 2 are provided with the ratchet teeth which can be mutually matched and connected, and the ratchet braking mode between the brake disc 3 and the driven disc 2 can realize the bidirectional braking of the lifting chain wheel 8, so that the two ends of the lifting chain 81 can use the lower lifting hook; the hand-pulled chain wheel 4 is provided with a plurality of arc grooves for storing or pushing up the bearing 21 on the driven disc 2 so that the brake disc 3 and the driven disc 2 are separated, and the friction force generated when the arc grooves are contacted with the bearing 21 on the driven disc 2 is small, so that a user can release the braking state with small force to finish lifting the heavy object; the ratchet teeth on the brake disc 3 and the driven disc 2 are provided with the sharp head and the plane tooth waist, so that the brake disc 3 and the driven disc 2 can be positioned only at a fixed angle when being connected in a matched manner, and the positioning error can be reduced to ensure the positioning precision; a spring 22 is arranged between the gasket and the driven disc 2, so that the driven disc 2 can realize effective reset; a supporting rod 6 is arranged between the left wallboard and the right wallboard, and a guide wheel 7 is arranged on the supporting rod 6, so that the range of an included angle between lower hooks at two ends of a lifting chain 81 is large, and the overturning of a larger workpiece or framework can be realized; a self-lubricating bearing is arranged between the hand-pulling chain wheel 4 and the brake disc 3, a needle bearing is arranged between the guide wheel 7 and the support rod 6, and the friction force is relatively small in the use process; the double-hook chain block is convenient to assemble, disassemble and maintain, easy to adjust and control, high in working stability, firm in structure and good in hoisting precision.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.
Claims (5)
1. The utility model provides a double hook chain block which characterized in that: including right casing (1), driven disc (2), brake disc (3), hand sprocket (4), major axis (5), bracing piece (6), hoist sprocket (8), spline hole gear (9), be equipped with chain logical groove on right casing (1), right casing (1) fixed mounting is equipped with driven disc (2), brake disc (3), hand sprocket (4) of taking a plurality of circular arc grooves, spring (22), lock nut and gasket between the two in the side of right wallboard, be equipped with the ratchet that can mutually support and connect on the right-hand end of driven disc (2) and the left end of brake disc (3), be equipped with a plurality of bearings (21) with bolt fastening on driven disc (2), install hand sprocket (41) on hand sprocket (4), the left end of major axis (5) is equipped with drive tooth portion, the right-hand end of major axis (5) is perpendicular to be passed spline hole gear (9), left wallboard, hoist sprocket (8), right wallboard, brake disc (3), the inside back and the lock nut of driven disc (2), link to each other with the lock nut, install hook (6) on the bracing piece (8) on the left wallboard and install a plurality of lifting hooks (6) on the bracing piece (81) on the side of installing between left wallboard and right wallboard, the side fixed mounting of left side wallboard has left casing (10), is equipped with intermeshing's piece gear train (91) and spline hole gear (9) between left casing (10) and the left wallboard, and piece gear train (91) are including piece gear A and piece gear B, and piece gear A and piece gear B all mesh with the drive tooth portion of major axis (5), hand sprocket (4) rotate in-process circular arc groove can deposit or jack away bearing (21) on driven disc (2) and make brake disc (3) and driven disc (2) separation.
2. The double hook chain block of claim 1, wherein: the left wallboard and the right wallboard are parallel to each other, a self-lubricating bearing is arranged between the hand-pulling chain wheel (4) and the brake disc (3), and the brake disc (3) is fixedly arranged on the right wallboard through a plurality of bolts.
3. The double hook chain block of claim 1, wherein: the long shaft (5) is connected with the inner wall of the driven disc (2) through involute splines, and the lifting chain wheel (8) is connected with the inner wall of the spline hole gear (9) through splines.
4. The double hook chain block of claim 1, wherein: the circular arc groove of the hand-pulling chain wheel (4) can be correspondingly provided with a bearing on the driven disc (2), and the ratchet teeth on the brake disc (3) and the driven disc (2) are respectively provided with a sharp head part and a plane tooth waist.
5. The double hook chain block of claim 1, wherein: needle bearings are arranged between the guide wheels (7) and the support rods (6), the number of the lower lifting hooks is 2, and the included angle range of the 2 lower lifting hooks in use is 0-180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251790.9A CN108285101B (en) | 2018-03-26 | 2018-03-26 | Double-hook chain block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251790.9A CN108285101B (en) | 2018-03-26 | 2018-03-26 | Double-hook chain block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108285101A CN108285101A (en) | 2018-07-17 |
| CN108285101B true CN108285101B (en) | 2023-11-17 |
Family
ID=62833736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810251790.9A Active CN108285101B (en) | 2018-03-26 | 2018-03-26 | Double-hook chain block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108285101B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282567B (en) * | 2019-07-09 | 2021-05-28 | 浙江冠林机械有限公司 | Hand pulling block |
| CN112551412B (en) * | 2020-11-30 | 2022-03-18 | 江苏御科机械有限公司 | Stable and reliable type chain block system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2076541U (en) * | 1990-05-25 | 1991-05-08 | 彭玉林 | Manual hoister of quickly moving hook type |
| CN2340756Y (en) * | 1998-10-09 | 1999-09-29 | 陈杰 | Bidirectional hand operated hoist |
| JP2002274776A (en) * | 2001-03-14 | 2002-09-25 | Sekisui Chem Co Ltd | Chain type suspender |
| CN2825583Y (en) * | 2005-09-29 | 2006-10-11 | 金安桐 | Chain type double-hook hoist |
| CN101081682A (en) * | 2006-06-02 | 2007-12-05 | 王鹏 | Separating arrangement for chain block |
| US7344121B1 (en) * | 2007-02-14 | 2008-03-18 | I-Te Pan | End surface gear-type overload protection device for manually operated hoists |
| KR200479293Y1 (en) * | 2015-04-08 | 2016-01-13 | 주식회사 대산이노텍 | Electric chain hoist including discharging resistor |
| CN205892607U (en) * | 2016-08-11 | 2017-01-18 | 杭州维多利机械有限公司 | Lever block that can go up and down fast during no -load |
| CN208037904U (en) * | 2018-03-26 | 2018-11-02 | 王�琦 | Double hook chain block |
-
2018
- 2018-03-26 CN CN201810251790.9A patent/CN108285101B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2076541U (en) * | 1990-05-25 | 1991-05-08 | 彭玉林 | Manual hoister of quickly moving hook type |
| CN2340756Y (en) * | 1998-10-09 | 1999-09-29 | 陈杰 | Bidirectional hand operated hoist |
| JP2002274776A (en) * | 2001-03-14 | 2002-09-25 | Sekisui Chem Co Ltd | Chain type suspender |
| CN2825583Y (en) * | 2005-09-29 | 2006-10-11 | 金安桐 | Chain type double-hook hoist |
| CN101081682A (en) * | 2006-06-02 | 2007-12-05 | 王鹏 | Separating arrangement for chain block |
| US7344121B1 (en) * | 2007-02-14 | 2008-03-18 | I-Te Pan | End surface gear-type overload protection device for manually operated hoists |
| KR200479293Y1 (en) * | 2015-04-08 | 2016-01-13 | 주식회사 대산이노텍 | Electric chain hoist including discharging resistor |
| CN205892607U (en) * | 2016-08-11 | 2017-01-18 | 杭州维多利机械有限公司 | Lever block that can go up and down fast during no -load |
| CN208037904U (en) * | 2018-03-26 | 2018-11-02 | 王�琦 | Double hook chain block |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108285101A (en) | 2018-07-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231023 Address after: Floor 1-5, Building 7-2, No. 6 Fengbei Road, Taozhu Street, Zhuji City, Shaoxing City, Zhejiang Province, 311801 Applicant after: Zhejiang Chikara Hoisting Machinery Co.,Ltd. Address before: No. 294, Group 9, Wangcun, Linpu Town, Xiaoshan District, Hangzhou City, Zhejiang Province, 311200 Applicant before: Wang Qi Applicant before: Xu Liqiao Applicant before: Li Jie |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |