CN104340912B - Manual hoisting jack - Google Patents
Manual hoisting jack Download PDFInfo
- Publication number
- CN104340912B CN104340912B CN201410554095.1A CN201410554095A CN104340912B CN 104340912 B CN104340912 B CN 104340912B CN 201410554095 A CN201410554095 A CN 201410554095A CN 104340912 B CN104340912 B CN 104340912B
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- CN
- China
- Prior art keywords
- pin
- gear sleeve
- sprocket
- drive sprocket
- gear
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Classifications
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- 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)
- Gears, Cams (AREA)
- Retarders (AREA)
Abstract
The invention discloses a kind of Manual hoisting jack, including drive sprocket, driven sprocket and drive chain and hoisting-chain, it is provided with eccentric bushing in drive sprocket side, it is provided with a pin gear sleeve being evenly equipped with gear pin between drive sprocket and driven sprocket, eccentric bushing inserts in pin gear sleeve, it is provided with external tooth cover in driven sprocket side, it in external tooth cover inserts pin gear sleeve and is engaged with part gear pin, fewer than the quantity of gear pin one of the teeth quantity of external tooth cover, the eccentric bushing eccentric throw sum of the diameter of external tooth cover and two times is equal to the reference diameter of gear pin, it is provided with connecting bushing in drive sprocket and driven sprocket centre bore, it is provided with installing plate at connecting bushing two ends, two installing plate upper ends are connected with each other by installing set, it is provided with boss at pin gear sleeve outer wall, described boss is stuck in outside installation set.Advantage is: simple and compact for structure, easy to install and use, and cost of manufacture is low, and volume is little, lightweight, drive chain no-idle running, and saving of work and time alleviates the labour intensity of operator.
Description
Technical field
The present invention relates to a kind of hoisting machinery, particularly to a kind of Manual hoisting jack.
Background technology
" jack " has another name called " chain block ", is a kind of to use Manual hoisting work simple, easy to carry
Tool, has used the principle of wheel shaft thus has served labour-saving effect, it is adaptable to factory, mine, building work
The installation exercises such as ground, harbour, vessel, warehouse, for outdoor and without electricity operation more have its important function.
Jack conventional at present is by housing, and the gear train being located in housing, friction pair and ratchet are anti-down certainly
Locking device forms.This jack structure is complicated, and manufacturing cost is high, uses and installs inconvenience, particularly
Lifting once needs to refund the endless chain idle stroke on drive sprocket just to carry out secondary hoisting afterwards, takes
During expenses of labour, increase the labour intensity of workman.
Content of the invention
The technical problem to be solved is to provide a kind of simple and compact for structure, uses, easy for installation,
No-idle running, saving of work and time, there is auto-lock function, the low Manual hoisting jack of cost of manufacture.
For solving the problems referred to above, the present invention adopts the following technical scheme that
A kind of Manual hoisting jack, including drive sprocket and driven sprocket, at drive sprocket and driven sprocket
On be respectively equipped with annular key way, and annular key way in be respectively equipped with drive chain and hoisting-chain, at drive chain
Wheel side is provided with an eccentric bushing, is provided with a pin gear sleeve, at pin between drive sprocket and driven sprocket
Being evenly equipped with a circle gear pin in tooth set, described eccentric bushing inserts in the centre bore of pin gear sleeve, at driven sprocket
Side is provided with an external tooth cover, and described external tooth cover insertion pin gear sleeve is interior and is engaged with part gear pin, external tooth
Fewer than the quantity of gear pin one of the teeth quantity of set, the eccentric bushing eccentric throw of the diameter of external tooth cover and two times
Sum is equal to the uniform reference diameter of gear pin, is provided with in the centre bore of drive sprocket and driven sprocket
One connecting bushing, is arranged with installing plate respectively at connecting bushing two ends, and the upper end of two installing plates is passed through
Installing set for one to be connected with each other, being provided with a boss at pin gear sleeve outer wall, described boss is by the middle part of it
U-shaped groove is stuck in outside installation set.
Preferably, the width of described U-shaped groove is equal to install the diameter of set and the eccentric bushing of two times is eccentric
Away from sum.
Preferably, in the centre bore of drive sprocket and driven sprocket and be respectively equipped with between connecting bushing
Needle bearing A.
Preferably, it between eccentric bushing and the centre bore of pin gear sleeve.
Preferably, it between driven sprocket and the end face of pin gear sleeve.
Preferably, being machined with an annular groove on pin gear sleeve, it is recessed that described gear pin is fixed on annular
At the big footpath inwall of groove.
Preferably, described connecting bushing two ends are connected to bolt, to realize to two installations
The positioning of plate.
Preferably, it is connected to fixing bolt at the two ends installing set, described two installing plates upper
End is set in installation and puts and spacing by fixing bolt.
The invention has the beneficial effects as follows:
1st, owing to this jack is only made up of several parts, and the parts rotating against are few, therefore tie
Structure is simply compact, use, easy for installation, cost of manufacture is low, and volume is little, lightweight.
2nd, after rotating due to drive sprocket, pin gear sleeve can be driven in original place to do sieve pendular motion by eccentric bushing,
Thus drive driven sprocket to do differential speed rotation by gear pin, and therefore drive chain no-idle running, solve biography
The idle stroke of drive chain must be refunded the difficult problem that just can carry out secondary hoisting by system jack, saving of work and time,
Alleviate the labour intensity of operator.
3rd, owing to utilizing cycloidal-pin wheel differential gearing principle to realize the hoisting function of jack, therefore this jack knot
Structure has auto-lock function, it is not necessary to still further arranges the anti-down self-locking device of ratchet, further simplify structure.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 3.
In figure: driven sprocket 1, annular key way 101, external tooth cover 2, set 3, pin gear sleeve 4, ring are installed
Connected in star 401, boss 402, U-shaped groove 403, fixing bolt 5, installing plate 6, needle bearing B7,
Drive sprocket 8, annular key way 801, needle bearing A9, bolt 10, connecting bushing 11, eccentric
Set 12, encloses gear pin 13, drive chain 14, sealing ring 15, hoisting-chain 16.
Detailed description of the invention
As shown in Figure 1-Figure 3, a kind of Manual hoisting jack involved in the present invention, including drive sprocket 8
With driven sprocket 1, drive sprocket 8 and driven sprocket 1 are respectively equipped with annular key way 801 and 101,
It is respectively equipped with the master of ring seal in the annular key way 801 and 101 of drive sprocket 8 and driven sprocket 1
Dynamic chain 14 and hoisting-chain 16.It is provided with an eccentric bushing 12 in corresponding driven sprocket 1 side of drive sprocket 8,
Eccentric bushing 12 is structure as a whole with drive sprocket 8, is provided with one between drive sprocket 8 and driven sprocket 1
Individual pin gear sleeve 4, described eccentric bushing 12 inserts in the centre bore of pin gear sleeve 4, at eccentric bushing 12 and pin tooth
Between the centre bore of set 4, needle bearing B7 is installed.
Pin gear sleeve 4 is machined with an annular groove 401, in the big footpath of described annular groove 401
At wall, uniform fixing is installed with a circle gear pin 13, and as preferably, the present embodiment gear pin 13 is with 40
As a example by.The circumference half part of gear pin 13 protrudes the big footpath inwall of described annular groove 401.At pin tooth
Overlap 4 outer walls and be provided with a trapezoid boss 402, in the middle part of boss 402, be machined with a U-shaped groove 403.
Be provided with an external tooth cover 2 in corresponding drive sprocket 8 side of driven sprocket 1, external tooth cover 2 with driven
Sprocket wheel 1 is structure as a whole, in described external tooth cover 2 inserts the annular groove 401 of pin gear sleeve 4 and with part
Gear pin 13 is engaged, fewer than the quantity of gear pin 13 one of the teeth quantity of external tooth cover 2, external tooth cover 2
Diameter and the eccentric throw sum of the eccentric bushing 12 of two times be equal to the uniform reference diameter of gear pin 13,
To guarantee to be capable of relative motion between the external tooth cover 2 of driven sprocket 1 and pin gear sleeve 4, i.e. pass through pin
The sieve pendular motion of tooth set 4 drives driven sprocket 1 differential speed rotation.
Centre bore at drive sprocket 8 and driven sprocket 1 has been inserted into a connecting bushing 11, is connecting
It is separately installed with a set of needle bearing between the centre bore of axle sleeve 11 and drive sprocket 8 and driven sprocket 1
A9.It is arranged with installing plate 6, described drive sprocket 8 and driven sprocket 1 at connecting bushing 11 two ends respectively
Being clipped between two installing plates 6, it is fixed to be threaded connection respectively in the centre bore of connecting bushing 11 two ends
Position bolt 10, to realize the positioning to two installing plates 6.
The upper end of described two installing plates 6 is installed set 3 by one and is connected with each other, and is installing the two of set 3
Being threaded connection fixing bolt 5 respectively in end centre bore, the upper end of described two installing plates 6 is respectively
It is sleeved on installation set 3 and spacing by fixing bolt 5.Described pin gear sleeve 4 is by its boss 402
U-shaped groove 403 be stuck in installation set 3 outside, the width of described U-shaped groove 403 be equal to install set 3
Diameter and the eccentric throw sum of the eccentric bushing 12 of two times.
It as preferably, between the end face of driven sprocket 1 and pin gear sleeve 4, is provided with sealing ring 15, in order to
Realize the lubrication and seal of the teeth to external tooth cover 2 and gear pin 13.
During use, this Manual hoisting jack is suspended on jack support by installing set 3, drops actively
Drive chain 14 on sprocket wheel 8, drives drive sprocket 8 to rotate, and drives the eccentric bushing on drive sprocket 8
12 do eccentric rotary, drive pin gear sleeve 4 to move by the rotation of eccentric bushing 12, due on pin gear sleeve 4
End is stuck in outside installation set 3, and therefore pin gear sleeve 4 may be implemented in original place and does sieve pendular motion, passes through gear pin
13 are engaged driving driven sprocket 1 with the part of external tooth cover 2 does differential speed rotation, thus drives hoisting-chain 16
Cycle rotation, it is achieved the lifting to weight.Manual actuation drive sprocket 8 every revolution, pin gear sleeve 4 drives
Dynamic 1 turn of teeth of driven sprocket, therefore lifting is steady.
Although embodiment of the present invention are disclosed as above, but it is not restricted to specification and embodiment party
Listed utilization in formula, it can be applied to various applicable the field of the invention completely, for being familiar with ability
For the personnel in territory, be easily achieved other modification, therefore without departing substantially from claim and etc. homotype
Enclosing under limited universal, the present invention is not limited to specific details and shown here as the figure with description
Example.
Claims (7)
1. a Manual hoisting jack, including drive sprocket and driven sprocket, at drive sprocket and driven chain
It is respectively equipped with annular key way on wheel, and be respectively equipped with drive chain and hoisting-chain in annular key way, its feature
It is: be provided with an eccentric bushing in drive sprocket side, between drive sprocket and driven sprocket, be provided with one
Pin gear sleeve, is evenly equipped with a circle gear pin in pin gear sleeve, and described eccentric bushing inserts in the centre bore of pin gear sleeve,
Be provided with an external tooth cover in driven sprocket side, in described external tooth cover inserts pin gear sleeve and with part gear pin
Occlusion, fewer than the quantity of gear pin one of the teeth quantity of external tooth cover, the diameter of external tooth cover and two times inclined
Heart set eccentric throw sum is equal to the uniform reference diameter of gear pin, in drive sprocket and driven sprocket
It is provided with a connecting bushing in heart hole, be arranged with installing plate, two installing plates at connecting bushing two ends respectively
Upper end by one install set be connected with each other, be provided with a boss at pin gear sleeve outer wall, described boss lead to
Cross the U-shaped groove in the middle part of it to be stuck in outside installation set；The width of described U-shaped groove is equal to install the straight of set
The eccentric bushing eccentric throw sum with two times for the footpath.
2. Manual hoisting jack according to claim 1, is characterized in that: at drive sprocket and driven
It in the centre bore of sprocket wheel and is respectively equipped with needle bearing A between connecting bushing.
3. Manual hoisting jack according to claim 2, is characterized in that: at eccentric bushing and pin gear sleeve
Centre bore between be provided with needle bearing B.
4. Manual hoisting jack according to claim 1, is characterized in that: at driven sprocket and pin tooth
It is provided with sealing ring between the end face of set.
5. Manual hoisting jack according to claim 1, is characterized in that: be machined with on pin gear sleeve
One annular groove, described gear pin is fixed at the big footpath inwall of annular groove.
6. Manual hoisting jack according to claim 1, is characterized in that: described connecting bushing two ends
It is connected to bolt, to realize the positioning to two installing plates.
7. Manual hoisting jack according to claim 1, is characterized in that: divide at the two ends installing set
Not being connected with fixing bolt, the upper end of described two installing plates is set in installation and puts and pass through to fix
Bolt is spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554095.1A CN104340912B (en) | 2014-10-17 | 2014-10-17 | Manual hoisting jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554095.1A CN104340912B (en) | 2014-10-17 | 2014-10-17 | Manual hoisting jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104340912A CN104340912A (en) | 2015-02-11 |
| CN104340912B true CN104340912B (en) | 2016-11-23 |
Family
ID=52497462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410554095.1A Active CN104340912B (en) | 2014-10-17 | 2014-10-17 | Manual hoisting jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104340912B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821148A (en) * | 2018-07-19 | 2018-11-16 | 河北怀鸽起重机械集团有限公司 | A kind of anti-sticking chain hangs upside down side and goes out chain electric block |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR343265A (en) * | 1904-05-18 | 1904-09-29 | Gaetan De Sainte Aldegonde | Differential gear hoist |
| US1588115A (en) * | 1921-05-14 | 1926-06-08 | John W Kittredge | Hoisting block |
| AU666078B2 (en) * | 1993-07-02 | 1996-01-25 | Elephant Chain Block Company Limited | Manual chain block |
| CN2791005Y (en) * | 2005-04-14 | 2006-06-28 | 张文曰 | Oscillating tooth drive mechanism of hand-driven ring-chain hoist |
| CN2825583Y (en) * | 2005-09-29 | 2006-10-11 | 金安桐 | Chain type double-hook hoist |
-
2014
- 2014-10-17 CN CN201410554095.1A patent/CN104340912B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104340912A (en) | 2015-02-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 536000 the Guangxi Zhuang Autonomous Region, Beihai Avenue, northwest sea export processing zone Patentee after: Lu Zhiwen Address before: 532200 the Guangxi Zhuang Autonomous Region Chongzuo Jiangzhou District No. 3 Jianshe Road Patentee before: Lu Zhiwen |
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| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191129 Address after: 215100 4th floor, building 5, No. 892, Wusong Road, Guoxiang street, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: Harvey Optoelectronic Technology (Suzhou) Co., Ltd Address before: 536000 the Guangxi Zhuang Autonomous Region, Beihai Avenue, northwest sea export processing zone Patentee before: Lu Zhiwen |
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| TR01 | Transfer of patent right |