CN112723213A - Main frame for ring chain hand hoist - Google Patents
Main frame for ring chain hand hoist Download PDFInfo
- Publication number
- CN112723213A CN112723213A CN202011184296.9A CN202011184296A CN112723213A CN 112723213 A CN112723213 A CN 112723213A CN 202011184296 A CN202011184296 A CN 202011184296A CN 112723213 A CN112723213 A CN 112723213A
- Authority
- CN
- China
- Prior art keywords
- chain
- side frame
- cross hole
- arc
- upper hook
- 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.)
- Pending
Links
Images
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
Abstract
The invention discloses a main frame for a chain-like chain hand chain hoist, and belongs to the technical field of chain-like chain hand chain hoists. Including drive side frame portion, the intermediate junction portion of these two of speed reduction side frame portion and body coupling, it has an arc to lead the chain groove to open at the inner wall of intermediate junction portion upper region, it has into the chain cross hole to open respectively between the bottom region of intermediate junction portion and the one end of arc to lead the chain groove and between the other end of arc to lead the chain groove, go out the chain cross hole, it is the setting of chain cross hole to advance the chain cross hole, it is located into the chain cross hole to make intermediate junction portion, the bottom of going out between the chain cross hole is formed with the lug portion that supplies to keep off the chain, the outside of drive side frame portion has the die cavity that supplies the arrestment mechanism installation, the outside of speed reduction side frame portion has the die cavity that supplies the gear reduction mechanism installation. After the technical scheme is adopted, the winch is simple in structure, does not have any assembly part inside and is beneficial to winding.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a main frame for a chain-like chain hand chain hoist, and belongs to the technical field of chain-like chain hand chain hoists.
[ background of the invention ]
As is well known, the chain block parts are scattered and fine. For example, the chain block machine body in the prior art mainly comprises a left wall plate 3 ' and a right wall plate 1 ' which are separately configured, two small guide chain wheels 21 ', a small chain block 22 ' and two support rods 2 '.
The left wall plate 3 ' and the right wall plate 1 ' are respectively provided with a small guide chain wheel shaft hole for movably arranging a shaft head of a small guide chain wheel 21 ', a small chain block shaft hole for installing a shaft head of a small chain block 22 ', a supporting rod shaft hole for installing a supporting rod 2 ' and an upper hook shaft hole for installing an upper hook shaft, wherein,
the small guide chain wheels 21' and the two side wall plates are arranged in a split manner, and each small guide chain wheel is arranged on the shaft hole for the small guide chain wheel; the small chain stopper 22' and the two side wall plates are separately arranged and are arranged on the shaft hole of the small chain stopper; the support rods 2' and the two wall plates are separately arranged, and the support rods are respectively arranged on the support rod shaft holes; the upper hook frame G 'is positioned between the two wall plates and is installed on the upper hook shaft hole through an upper hook shaft G1'.
By carefully analyzing the structure, the following technical defects of the existing chain block body can be easily found out:
1. the left wall plate 3 ' and the right wall plate 1 ' which are separately configured are connected only by the support rod 2 ', and the connection strength is poor;
2. the hoisting chain 41 'hung from the hoisting chain wheel 4' is positioned in the space between the two wallboards, and the hoisting chain is guided to enter and exit the chain block machine by only two small guide chain wheels, so that the hoisting chain 41 'is free from being constrained to swing between the two wallboards relative to the radial direction of the hoisting chain wheel 4', and the practical use process finds that the meshing transmission of the hoisting chain 41 'and the hoisting chain wheel 4' is unreliable, the hoisting chain 41 'is easy to twist to turn or even clamp the chain, and the smooth hoisting of the hoisting chain 41' is influenced;
3. due to the split configuration of the small guide chain wheel 21 ', the right wall plate 1 ' and the left wall plate 3 ', the small guide chain wheel can be inclined and toppled when slightly touched when being assembled on a production line, and the assembly takes time;
4. the small chain blocking block 22 ' is in split configuration with the right wall plate 1 ' and the left wall plate 3 ', when small chain blocking block parts are assembled on a production line, the small chain blocking block parts are inclined and toppled over under slight touch, and the low efficiency of assembly is also low, and sometimes the small chain blocking block 22 ' in split configuration fails to influence the orderly and smooth separation of a hoisting chain link from a chain pit of the hoisting chain wheel 4 ', so that the faults of chain folding and chain winding occur in the process of hoisting a load chain.
In a word, the existing chain block machine has the disadvantages of more split small parts, time-consuming assembly alignment, low precision and large accumulated error, so that the assembly link of a production line is more, and the assembly cost is higher.
[ summary of the invention ]
The invention aims to solve the technical problem of providing the main frame for the chain block, which has a simple structure, does not have any assembly part inside and is favorable for winding, aiming at the defects in the prior art.
Therefore, the technical scheme adopted by the invention for solving the technical problems is as follows:
the main frame for the ring-chain hand-pulled hoist is a single part and comprises a driving side frame part, a decelerating side frame part and an intermediate connecting part which is integrally connected with the driving side frame part and the decelerating side frame part, wherein an arc-shaped chain guide groove is formed in the inner wall of the upper area of the intermediate connecting part, a chain inlet cross hole and a chain outlet cross hole are respectively formed between the bottom area of the intermediate connecting part and one end of the arc-shaped chain guide groove and between the bottom area of the intermediate connecting part and the other end of the arc-shaped chain guide groove, and the arrangement of the chain inlet cross hole and the chain outlet cross hole enables the intermediate connecting part to be provided with a lug part for blocking a chain at the bottom part between the chain inlet cross hole and the chain outlet cross hole, a cavity for installing a braking mechanism is formed in the outer side of the driving side frame part, and.
An upper hook frame accommodating groove for movably accommodating the upper hook frame is formed in the outer wall of the upper part of the middle connecting part, and the upper hook frame accommodating groove is closer to the chain inlet cross hole and farther from the chain outlet cross hole; the drive side frame portion and the speed reduction side frame portion are both higher than the upper hook frame accommodating groove.
After deviating from the design, the deflection angle of the main frame can be reduced during hoisting and bearing, and particularly, the chain block of the single-row hoisting chain is more obvious; because the driving side frame part and the speed reducing side frame part are higher than the upper hook frame accommodating groove, a certain swinging freedom degree of the upper hook frame is ensured, and the action of movable beam limitation is also realized.
The invention has the following advantages and positive effects:
1. the main frame is a main framework with a single part, and the integration level is high because no assembly part is needed in the main frame, so that the defects of more parts for assembly, time-consuming assembly alignment, high assembly cost and large assembly precision accumulated error existing in the existing chain block machine body, namely between the wallboards are overcome, and the mutual extrusion and impact of the parts between the wallboards under different working conditions are avoided in the hoisting operation process;
2. the main frame for the chain block is formed by connecting a driving side frame part, a speed reduction side frame part and an intermediate connecting part into a whole, has a simple structure and high strength, and overcomes the defect that a support rod is adopted to connect two wallboards in the prior art;
3. the chain inlet cross hole, the chain outlet cross hole and the arc-shaped chain guide groove are directly formed in the middle connecting part, so that the hoisting chain is ensured to smoothly enter and exit from the main frame and is not easy to twist, unfavorable shaking of the hoisting chain in the main frame is avoided, and the meshing transmission reliability of the hoisting chain and a hoisting chain wheel is improved;
4. directly after the lug part is formed on the middle connecting part, the phenomena of chain coiling and chain folding of a hoisting chain are completely avoided in the hoisting operation process, and the hidden trouble that the existing small chain blocking block of a split configuration structure is invalid is overcome.
[ description of the drawings ]
FIG. 1 is a front view of a main frame for a chain block of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view C-C of FIG. 2;
fig. 4 is a sectional view taken along line B-B in fig. 1.
[ detailed description ] embodiments
Referring to fig. 1-4, a main frame for a ring-chain hand-operated hoist, which is a single component, includes a driving-side frame portion 1, a decelerating-side frame portion 3, and a middle connecting portion 2 integrally connecting the driving-side frame portion 1 and the decelerating-side frame portion 3, an arc-shaped chain guide slot 21 is formed on an inner wall of an upper region of the middle connecting portion 2, a chain inlet cross hole 20-1 is formed between a bottom region of the middle connecting portion 2 and one end 21a of the arc-shaped chain guide slot 21, a chain outlet cross hole 20-2 is formed between the bottom region of the middle connecting portion 2 and the other end 21b of the arc-shaped chain guide slot 21, the chain inlet cross hole 20-1 and the chain outlet cross hole 20-2 are arranged such that a protruding portion 22 for blocking a chain is formed at a bottom of the middle connecting portion 2 between the chain inlet cross hole 20-1 and the chain outlet cross hole 20-2, the drive-side frame unit 1 has a cavity 10 on the outside thereof to which a brake mechanism (a known structure is not shown) is attached, and the reduction-side frame unit 3 has a cavity 30 on the outside thereof to which a gear reduction mechanism (also not shown) is attached.
The braking mechanism is of the existing structure, and particularly is a friction braking mechanism; gear reduction mechanisms are also known constructions.
The main frame is made of light aluminum alloy materials.
An upper hook frame accommodating groove 23 for movably accommodating an upper hook frame (a conventional structure is not shown in the figure) is formed in the outer wall of the upper part of the middle connecting part 2, and the upper hook frame accommodating groove 23 is closer to the chain inlet cross hole 20-1 and farther from the chain outlet cross hole 20-2; the drive-side frame portion 1 and the reduction-side frame portion 3 are both higher than the upper hook housing groove 23.
A bearing hole 100 for supporting a hoisting sprocket (a known structure is not shown) is formed in the driving side frame part 1; the reduction-side frame portion 3 is also provided with a bearing hole (not shown) for supporting a hoisting sprocket.
Claims (2)
1. The utility model provides a main frame for loop chain hand hoist, its is single part, its characterized in that: comprises a driving side frame part, a decelerating side frame part and an intermediate connecting part for integrally connecting the driving side frame part and the decelerating side frame part,
the inner wall of the upper region of the middle connecting part is provided with an arc-shaped chain guide groove,
a chain inlet cross hole and a chain outlet cross hole are respectively arranged between the bottom area of the middle connecting part and one end of the arc-shaped chain guide groove and between the bottom area of the middle connecting part and the other end of the arc-shaped chain guide groove,
the arrangement of the chain inlet and outlet cross holes ensures that the middle connecting part is provided with a convex block part for blocking the chain at the bottom between the chain inlet cross hole and the chain outlet cross hole,
the outer side of the driving side frame part is provided with a cavity for mounting the brake mechanism, and the outer side of the speed reducing side frame part is provided with a cavity for mounting the gear speed reducing mechanism.
2. The main frame for the chain block of claim 1, wherein an upper hook receiving groove is formed in an outer wall of an upper portion of the intermediate connecting portion, in which the upper hook is movably received, and the upper hook receiving groove is closer to the chain inlet cross hole and farther from the chain outlet cross hole; the drive side frame portion and the speed reduction side frame portion are both higher than the upper hook frame accommodating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184296.9A CN112723213A (en) | 2020-10-22 | 2020-10-22 | Main frame for ring chain hand hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184296.9A CN112723213A (en) | 2020-10-22 | 2020-10-22 | Main frame for ring chain hand hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112723213A true CN112723213A (en) | 2021-04-30 |
Family
ID=75597350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011184296.9A Pending CN112723213A (en) | 2020-10-22 | 2020-10-22 | Main frame for ring chain hand hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112723213A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0351478A1 (en) * | 1988-07-19 | 1990-01-24 | Victory | Hand operated chain block |
| CN1852855A (en) * | 2003-09-16 | 2006-10-25 | 鬼头股份有限公司 | Hoisting and pulling device |
| JP2014108839A (en) * | 2012-11-30 | 2014-06-12 | Kito Corp | Chain block and load chain |
| CN104428238A (en) * | 2012-07-30 | 2015-03-18 | 株式会社开道 | Chain block |
| CN211496725U (en) * | 2019-11-01 | 2020-09-15 | 常熟海鸥起重机械有限公司 | Hoisting tackle with dustproof function |
-
2020
- 2020-10-22 CN CN202011184296.9A patent/CN112723213A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0351478A1 (en) * | 1988-07-19 | 1990-01-24 | Victory | Hand operated chain block |
| CN1852855A (en) * | 2003-09-16 | 2006-10-25 | 鬼头股份有限公司 | Hoisting and pulling device |
| CN104428238A (en) * | 2012-07-30 | 2015-03-18 | 株式会社开道 | Chain block |
| JP2014108839A (en) * | 2012-11-30 | 2014-06-12 | Kito Corp | Chain block and load chain |
| CN211496725U (en) * | 2019-11-01 | 2020-09-15 | 常熟海鸥起重机械有限公司 | Hoisting tackle with dustproof function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112723213A (en) | Main frame for ring chain hand hoist | |
| EP1828044B1 (en) | Elevator roping arrangement | |
| FI100962B (en) | Suspension arrangement of hydraulic lift | |
| CN210798630U (en) | Double-guide-rail lifting system for lifting automobile window glass | |
| CN211470473U (en) | Traction suspension mechanism for machine room-less elevator | |
| CN210369651U (en) | Orchestra pond lifting type railing | |
| EP3684722B1 (en) | Hoisting arrangement of a hoist of a crane | |
| CN216991551U (en) | Positioning mechanism for pin block machining | |
| CN218931395U (en) | Connecting device for elevator driving frame and suspension cage | |
| CN220811510U (en) | Easily-installed machine-room-free cargo elevator | |
| CN214463467U (en) | Rope wheel type anti-thread-off device for glass lifter | |
| CN218465270U (en) | Promote promotion platform of location installation fast | |
| CN113173476B (en) | Synchronous gearless traction machine convenient to maintain for elevator | |
| EP3168181B1 (en) | Compact drive system for lifts | |
| CN215439203U (en) | Suspended structure of sightseeing elevator | |
| CN212127213U (en) | Elevator sill with adjustable length | |
| CN219489319U (en) | Bottom hanging type inclined wheel machine-room-free elevator additionally mounting structure | |
| CN210457084U (en) | Termination device for hoisting rope and household elevator | |
| CN215755869U (en) | Construction elevator in shaft | |
| CN219670039U (en) | Hoist with small occupied space | |
| CN216971653U (en) | No computer lab top diverting pulley device | |
| CN217925842U (en) | Instrument calibration device for logging | |
| CN214879365U (en) | Elevator safety guide system | |
| CN216613643U (en) | Host installation structure of elevator without machine room | |
| CN216741397U (en) | Oil field is assisted downhole tool and is played single device down |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |
|
| RJ01 | Rejection of invention patent application after publication |