CN113003457B - Hand chain driving mechanism of drag chain with any angle for chain block - Google Patents
Hand chain driving mechanism of drag chain with any angle for chain block Download PDFInfo
- Publication number
- CN113003457B CN113003457B CN202110369870.6A CN202110369870A CN113003457B CN 113003457 B CN113003457 B CN 113003457B CN 202110369870 A CN202110369870 A CN 202110369870A CN 113003457 B CN113003457 B CN 113003457B
- Authority
- CN
- China
- Prior art keywords
- chain
- outer end
- hand
- end cover
- support
- 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.)
- Active
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses a hand chain driving mechanism of a drag chain with any angle for a chain block, which comprises a support and a switching piece, the hand chain wheel is fixed on the outer vertical surface of a wall plate, the hand chain wheel is in transmission threaded connection with a long shaft, the outer end cover is fixed on the outer end surface of the adaptor, the hand chain wheel is accommodated between a cavity of the outer end cover and the closing-up check ring, the adaptor and the outer end cover the hand chain wheel, the adaptor also covers the brake, the lower part of the outer end surface of the adaptor and a chain inlet and outlet notch arranged on the lower part of the inner end surface of the outer end cover are combined into a chain inlet and outlet guide hole, and the upper part of the outer end surface of the adaptor and an arc-shaped chain guide groove arranged on the upper part of the inner end surface of the outer end cover are combined into an arc-shaped chain guide groove. The invention prevents foreign matters from entering the hand chain wheel and the brake, the in-out chain always follows the drag chain direction when dragging the chain at different angles, and the guide chain is good.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a hand chain driving mechanism of a drag chain with any angle for a chain block, belonging to the technical field of chain block with a ring chain.
[ background of the invention ]
In the existing chain block, the hand chain wheel housing of the hand chain driving mechanism is a single and integral stamping thin-wall metal piece which is either clamped at the outer edge of the hand chain wheel or directly rigidly fixed on a supporting rod and covers the hand chain wheel, and the hand chain wheel housing is only provided with a chain inlet and outlet hole. In the former structure, because the hand chain wheel is basically exposed, dust and hard foreign matters easily invade the hand chain wheel and the hand chain, so that the normal rotation performance of the hand chain wheel is influenced, and the hand chain wheel is difficult to operate under complex and severe working conditions; in the latter structure, the hand chain wheel is fixed, so that an operator can only stand near the hanging load to pull the hand chain in the dropping direction, when the hand pulling force slightly deviates from the dropping direction of the hand chain, the hand chain in the skew state can crack and collide with the inner wall of the housing of the hand chain wheel due to the interference of the housing of the hand chain wheel, and the guide chain is not smooth, so that the labor consumption is increased on a large scale, and the noise is not harsh.
[ summary of the invention ]
The invention aims to provide a hand chain driving mechanism of a drag chain with any angle for a chain block, which can prevent foreign matters from entering a hand chain wheel and a brake, can ensure that the entering and exiting of the chain are always carried out along the drag chain force direction when drag chains with different angles are operated, has good chain guiding performance, and can not cause the phenomena of chain climbing, chain twisting and chain folding.
Therefore, the invention adopts the following technical scheme:
the hand chain driving mechanism of the chain dragging with any angle for the chain block is formed by assembling a support, an adapter, an outer end cover and a hand chain wheel with the hand chain in a split mode, wherein the hand chain is formed by alternately sleeving a vertical ring and a flat ring, an annular boss of a thin-wall structure axially extends out of the end face of the inner side of the adapter, a closing-up check ring is formed on the wall of the inner side of the adapter, the annular boss is rotatably supported and axially limited in an inner hole of the support, the support is detachably fixed on the outer vertical surface of a wall plate, the hand chain wheel is in threaded connection with a long shaft in a transmission mode, the outer end cover is in contact with the whole end face of the outer side of the adapter and is detachably fixed, a movable space for accommodating the hand chain wheel is formed between the closing-up check ring and a cavity of the outer end cover, on one hand, the adapter and the outer end cover the hand chain wheel together, and on the other hand, the adapter also covers a brake; the lower part of the outer end face of the adapter piece is concavely provided with a pair of in-out chain gaps, and the upper part of the outer end face of the adapter piece is provided with an arc-shaped chain guide groove in transitional connection with the pair of in-out chain gaps; the lower part of the end face of the inner side of the outer end cover is concavely provided with a pair of in-out chain notches, and the upper part of the end face of the inner side of the outer end cover is provided with an arc-shaped chain guide groove in transitional connection with the pair of in-out chain notches; the chain inlet and outlet notch of the adapter piece and the chain inlet and outlet notch of the outer end cover are combined to form a chain inlet and outlet guide hole for the hand position chain to enter and exit the movable space, and the arc-shaped chain guide groove of the adapter piece and the arc-shaped chain guide groove of the outer end cover are combined to form an arc-shaped chain guide groove for limiting the vertical ring.
The annular boss is provided with a limiting groove on the peripheral surface, a clamp spring arranged in the limiting groove abuts against a limiting step of the support, and the annular boss is detachably limited with the support in the axial direction through the clamp spring; the support is fixed on a wall plate through a support rod and a nut which are arranged on the wall plate in a penetrating mode.
In order to ensure the strength and the impact resistance, particularly, the outer end cover is not collapsed due to the fact that the outer end cover often collides with a hard ground or hard foreign matters, the support, the adapter and the outer end cover are integrally molded by aluminum alloy die casting respectively.
In order to meet the requirements of light weight, abrasion resistance and bump resistance, the support, the adapter and the outer end cover are integrally formed by engineering plastics respectively.
Due to the fact that the transverse size of the hand chain driving mechanism is optimized and the strength of the outer end cover is considered, the thicknesses of the adaptor, the outer end cover and the support are sequentially reduced.
The chain inlet and outlet notch of the outer end cover and the chain inlet and outlet notch of the adaptor are respectively gradually expanded from the inner end to the outer end.
After adopting above-mentioned structure, can make hand chain have sufficient removal space in business turn over chain guiding hole, do benefit to and reduce frictional interference and frictional resistance to reduce the friction noise, and then can also reduce the physical stamina consumption of manpower towline.
The invention has the following advantages and positive effects:
the outer end cover and the adapter piece which are fixed into a whole by a longer contact plane can not only prevent dust and hard foreign matters from being invaded and ensure the working performance of the hand chain wheel under complicated and severe working conditions for a long time because the adapter piece also shields the whole brake, thus being beneficial to maintaining operation of the chain block, avoiding lubricant, foreign matters and the like from entering the brake and ensuring the braking performance, and because the adapter piece adopts a supporting structure which can rotate relative to the support, when pulling forces in different directions are applied to the chain pull, the adapter piece and the outer end cover can rotate through corresponding angular positions along with the change of the pulling angle of the chain pull, namely the adapter piece and the outer end cover can self-adapt to the angular positions of the in-out chain guide holes according to the change of the angle of the chain pull, so that an operator can drag the chain at any angular position and can ensure that the pulling force is basically consistent with the direction applied to the chain pull when the chain pull passes through the in-out chain guide holes, the hand-pulling chain can pass through the in-out chain guide hole smoothly without resistance all the time, so that the manual drive is transmitted to the hand chain wheel and the long shaft consistently;
the operation space is not limited by the volume of the load bearing object and the width of the operation space around the load bearing object, namely, an operator can select a conventional mode to stand under the approaching load object and apply force vertically and downwards according to the actual conditions of the operation occasion, can also stand under the load and deviate from the gravity line of the load to make a drag chain with a large inclination angle, and even can select to stand above the load object to apply force upwards to drag the hand zipper strip.
The arc guide chain groove that adaptor and outer end cover set up respectively can prevent that the vertical ring side direction of hand power chain from rocking, and the parcel nature to the opposite ring of arc guide chain ditch to closing the constitution is good, has not only improved the meshing precision of hand power chain and hand sprocket, can play moreover and prevent to found the ring and climb the chain and appear the emergence of twisted chain or even fold the chain phenomenon after climbing the chain.
The hand sprocket wheel housing in the prior art is a single and integral stamped thin-walled part, and is replaced by an integral combined structure formed by three parts, namely, the adapter is limited relative to the support in advance to form a kit structure and then is installed on a wallboard in a complete set to form a relatively rotatable form, so that the field assembly line management is facilitated, the outer end cover and the adapter are of a detachable integrated assembly structure, so that after one hand sprocket wheel housing part is decomposed into three split configuration parts, namely, the support, the adapter and the outer end cover, the respective internal structure is greatly simplified compared with the condition that the three parts are single parts or two parts, and therefore, the three parts are suitable for casting and forming, and the cost advantage is obvious.
In conclusion, the invention overcomes the prejudice that the hand chain block industry habitually considers that parts belong to a plurality of defects for a long time, thereby achieving the aim of the invention.
[ description of the drawings ]
FIG. 1 is a plan view of the present invention mounted on a chain block;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3(a) is a front view of the adaptor, (b) is a left side view of the adaptor, and (c) is a right side view of the adaptor;
FIG. 4(a) is a front view of the outer end cap, (B) is a right side view of the outer end cap, and (c) is a cross-sectional view taken from B-B shown in (a);
FIG. 5(a) is a plan view of the holder, and (b) is a sectional view taken from C-C shown in (a);
fig. 6 is a partial exploded view of fig. 2.
[ detailed description ] A
The hand chain hoist is formed by assembling a support 1, an adapter 2, an outer end cover 4 and a hand chain wheel 3 with a hand chain Q in a split mode, wherein the hand chain Q is formed by welding a vertical ring Q1 and a flat ring Q2 on a resistance butt welding chain ring machine after being alternately sleeved.
An annular boss 23 with a thin-wall structure axially extends from the inner end face of the adaptor 2, a closing-up check ring 20 is formed on the inner hole wall of the adaptor, the annular boss 23 is rotatably supported and axially limited in the inner hole 10 of the support 1, the adaptor is detachably fixed on the outer vertical face of a wall plate 6 by means of the support 1, the hand chain wheel 3 is in transmission threaded connection with the long shaft 7, the outer end cover 4 is in contact with the whole outer end face of the adaptor 2, the outer end cover 4 is detachably fixed with the adaptor 2, a movable space 2-4 for accommodating the hand chain wheel 3 and allowing the hand chain wheel to rotate is formed between the closing-up check ring 20 and a cavity 40 formed in the outer end cover 4, the adaptor 2 and the outer end cover 4 cover the hand chain wheel 3 together, and the adaptor 2 also covers the brake 8.
A pair of (2) chain inlet and outlet notches 21 are concavely arranged at the lower part of the outer end surface of the adapter 2, and an arc-shaped chain guide groove 22 in transitional connection with the pair of chain inlet and outlet notches 21 is arranged at the upper part of the outer end surface of the adapter 2.
Specifically, two ends of the arc-shaped chain guide groove 22 are respectively connected with corresponding chain inlet and outlet notches in a transition manner; the two access openings 21 are arranged symmetrically on the adapter 2.
A pair of (2) in-out chain notches 41 are concavely arranged at the lower part of the end face at the inner side of the outer end cover 4, and an arc-shaped chain guide groove 42 in transitional connection with the pair of in-out chain notches 41 is arranged at the upper part of the end face at the inner side of the outer end cover 4.
In detail, two ends of the arc-shaped chain guide slot 42 are respectively connected with corresponding chain inlet and outlet notches in a transition manner; the two in-out chain notches 41 are symmetrically distributed on the outer end cover 4.
After the outer end cover 4 is fixed with the adaptor 2, the chain inlet and outlet notch 21 and the chain inlet and outlet notch 41 are formed into a chain inlet and outlet guide hole for the hand position chain Q to enter and exit the movable space 2-4, and the arc-shaped chain guide groove 22 and the arc-shaped chain guide groove 42 are formed into an arc-shaped chain guide groove for limiting the vertical ring Q1.
The outer periphery of the annular boss 23 is loosely matched with the inner hole 10 of the support 1; an inner hole 10 of the support 1 is a step hole with a step 11; the outer diameter of the annular boss 23 is smaller than the outer diameter of the body portion of the adaptor 2.
The annular boss 23 is provided with a limiting groove 230 on the outer peripheral surface thereof, a clamp spring 5 arranged in the limiting groove 230 is abutted against the limiting step 11 of the support 1, and the annular boss 23 is detachably axially limited with the support 1 through the clamp spring 5; the support 1 is fixed to a wall panel by means of a support rod 61 and a nut 62 which are threaded on a wall panel 6.
The support 1, the adapter 2 and the outer end cover 4 are integrally molded by aluminum alloy die casting respectively.
The support, the adapter and the outer end cover are integrally formed by engineering plastics respectively.
The axial thicknesses of the adaptor 2, the outer end cover 4 and the support 1 are decreased progressively in sequence.
As is clear from fig. 4, the surface area of the chain inlet and outlet notch 4 of the outer end cover 4 gradually expands from the inner end to the outer end; the surface area of the access chain indentation 21 of the adapter 2 also gradually expands from the inner end to the outer end, see fig. 3.
The process of assembling the hand chain driving mechanism to the chain block is as follows:
firstly, the support 1 is sleeved on the annular boss 23 of the adapter 2 in a hollow manner through the inner hole 10 of the support, then the clamp spring 5 is arranged in the limiting groove 230, the outer edge part of the clamp spring 5 exposed out of the limiting groove 230 abuts against the limiting step 11 to complete axial limiting of the adapter 2 and the support 1, and the adapter 2 and the support 1 form a set; then, three through holes formed in the support 1 are aligned with the three support rods 61 and then are slidably mounted on the support rods, the inner side surfaces of the support 1 are attached to the outer vertical surface of a wall plate 6, three nuts 62 are screwed to the head ends of the support rods 61 and then are screwed tightly to mount the support 1, and the support 1 is positioned by taking the three support rods 61 as the center; then, the hand chain wheel 3 is screwed on the long shaft 7, the slotted nut P and the inserting cotter pin P1 are screwed on the shaft end of the long shaft 7, the hand chain wheel 3 is positioned in the adaptor 2, and then the hand chain Q is hung on the hand chain wheel 3, so that two drooping sections of the hand chain Q are ensured to fall into the corresponding chain inlet and outlet gaps 21 of the adaptor 2 respectively; next, the outer end cover 4 is assembled on the adaptor 2, and two drooping sections of the hand-pulling chain Q are located between the chain inlet and outlet notch 21 of the adaptor 2 and the chain inlet and outlet notch 41 of the outer end cover 4, after the inner side end face of the outer end cover 4 is attached to the outer side end face of the adaptor 2, screws K are finally inserted into three counter bores (not marked) formed in the outer end cover 4, and each screw K is aligned with a screw hole formed in the outer end face of the adaptor 2 and then is tightened by applying force.
The shaft 7, one wall plate 6 and the support rod 61 are conventional structures of chain blocks, and the other wall plate (not shown) is spaced on the opposite side of the one wall plate 6.
The brake is of a known structure; the snap spring 5, the nut 62, the cotter pin P1, the slotted nut P and the screw K are standard parts.
The vertical ring is engaged with the vertical groove of the hand chain wheel, and the horizontal ring is engaged with the horizontal groove of the hand chain wheel.
Claims (7)
1. The utility model provides a hand chain actuating mechanism of chain dragging with arbitrary angle for chain block which characterized in that: is formed by assembling a support, an adapter piece, an outer end cover and a hand chain wheel with a hand chain in a split way, the hand chain is alternately sleeved by a vertical ring and a horizontal ring,
the adapter piece axially extends out of an annular boss with a thin-wall structure on the end face of the inner side of the adapter piece, a closing-up check ring is formed on the wall of the inner hole of the adapter piece, the annular boss is rotatably supported and axially limited in an inner hole of a support, the support is detachably fixed on the outer vertical face of a wall plate, a hand chain wheel is in transmission threaded connection with a long shaft, an outer end cover is in contact with the whole end face of the outer side of the adapter piece and is detachably fixed, a moving space for accommodating the hand chain wheel is formed between the closing-up check ring and a cavity of the outer end cover, on one hand, the adapter piece and the outer end cover the hand chain wheel together, and on the other hand, the adapter piece also covers a brake;
the lower part of the end face of the outer end of the adapter is concavely provided with a pair of chain inlet and outlet notches, the upper part of the end face of the outer end of the adapter is provided with an arc-shaped chain guide groove in transition connection with the pair of chain inlet and outlet notches, the lower part of the end face of the inner end of the outer end cover is concavely provided with a pair of chain inlet and outlet notches, the upper part of the end face of the inner end of the outer end cover is provided with an arc-shaped chain guide groove in transition connection with the pair of chain inlet and outlet notches, the chain inlet and outlet notches of the adapter and the chain inlet and outlet notches of the outer end cover are combined to form a chain inlet and outlet guide hole for a hand-pulled chain to enter and exit the movable space, and the arc-shaped chain guide groove of the adapter and the arc-shaped chain guide groove of the outer end cover are combined to form an arc-shaped chain guide groove for limiting the vertical ring.
2. The chain hoist as claimed in claim 1, wherein the chain hoist comprises a chain driving mechanism for driving the chain at any angle: the annular boss is provided with a limiting groove on the outer peripheral surface, a clamp spring arranged in the limiting groove abuts against a limiting step of the support, and the annular boss is detachably limited with the support in the axial direction through the clamp spring; the support is fixed on a wall plate through a support rod and a nut which are arranged on the wall plate in a penetrating mode.
3. The hand chain driving mechanism of the chain block for the drag chain of any angle according to claim 1 or 2, wherein: the support, the adapter and the outer end cover are integrally formed by aluminum alloy die casting respectively.
4. The hand chain driving mechanism of the chain block for the drag chain of any angle according to claim 1 or 2, wherein: the support, the adapter and the outer end cover are integrally formed by engineering plastics respectively.
5. The hand chain driving mechanism of the chain block with any angle drag chain of claim 3, wherein: the thicknesses of the adapter piece, the outer end cover and the support are sequentially decreased progressively.
6. The hand chain driving mechanism of the chain block with any angle drag chain of claim 4, wherein: the thicknesses of the adapter piece, the outer end cover and the support are sequentially decreased progressively.
7. The hand chain driving mechanism of a chain hoist for an arbitrary angle drag chain according to claim 1 or 2, wherein: and the chain inlet and outlet notch of the outer end cover and the chain inlet and outlet notch of the adaptor are respectively gradually expanded from the inner end to the outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110369870.6A CN113003457B (en) | 2021-03-29 | 2021-03-29 | Hand chain driving mechanism of drag chain with any angle for chain block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110369870.6A CN113003457B (en) | 2021-03-29 | 2021-03-29 | Hand chain driving mechanism of drag chain with any angle for chain block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113003457A CN113003457A (en) | 2021-06-22 |
| CN113003457B true CN113003457B (en) | 2022-05-03 |
Family
ID=76388376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110369870.6A Active CN113003457B (en) | 2021-03-29 | 2021-03-29 | Hand chain driving mechanism of drag chain with any angle for chain block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113003457B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007617A (en) * | 1989-08-03 | 1991-04-16 | Vital Kogyo Kabushiki Kaisha | Hand-operated chain block |
| CN2332702Y (en) * | 1998-02-16 | 1999-08-11 | 张军安 | Double-hook fast hand hoist |
| CN2853743Y (en) * | 2006-01-02 | 2007-01-03 | 浙江飞鸟起重机械有限公司 | Electric hoister with endless chain |
| CN105347214A (en) * | 2015-11-24 | 2016-02-24 | 浙江维大茵特起重设备有限公司 | Chain block |
| CN206940318U (en) * | 2017-02-16 | 2018-01-30 | 浙江五一机械有限公司 | Chain block pulls chain chain guide device |
-
2021
- 2021-03-29 CN CN202110369870.6A patent/CN113003457B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007617A (en) * | 1989-08-03 | 1991-04-16 | Vital Kogyo Kabushiki Kaisha | Hand-operated chain block |
| CN2332702Y (en) * | 1998-02-16 | 1999-08-11 | 张军安 | Double-hook fast hand hoist |
| CN2853743Y (en) * | 2006-01-02 | 2007-01-03 | 浙江飞鸟起重机械有限公司 | Electric hoister with endless chain |
| CN105347214A (en) * | 2015-11-24 | 2016-02-24 | 浙江维大茵特起重设备有限公司 | Chain block |
| CN206940318U (en) * | 2017-02-16 | 2018-01-30 | 浙江五一机械有限公司 | Chain block pulls chain chain guide device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113003457A (en) | 2021-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1012484B (en) | Improved torque spanner | |
| CA2697695A1 (en) | Bearing assembly retaining apparatus and well drilling equipment comprising same | |
| CN113003457B (en) | Hand chain driving mechanism of drag chain with any angle for chain block | |
| CN209767004U (en) | Net sealing device and net sealing tackle thereof | |
| CN106180412A (en) | A kind of quick bending jig of cylinder jump ring | |
| KR20100127937A (en) | The mold of banding machine | |
| CN110589699B (en) | Combined pulley block for conversion of movable pulley and fixed pulley | |
| CN110371843B (en) | Hook lockset | |
| CN213864927U (en) | Guide structure for winch | |
| US5149058A (en) | Lever-operated hoist | |
| CN212084749U (en) | Wire harness clamping mechanism | |
| CN212717330U (en) | Device for transmission device support of industrial fan | |
| CN111230803A (en) | Bearing dismounting device | |
| CN217651367U (en) | Novel spinning frame roller head slide | |
| CN215845625U (en) | Die casting die extremely short to stroke | |
| CN218347907U (en) | Wear-resistant planetary reducer | |
| CN212225907U (en) | Tension device | |
| CN218844990U (en) | Pin shaft sleeve capable of being positioned | |
| CN113352104B (en) | Model processing equipment that children used | |
| CN219863316U (en) | Connecting mechanism of steel structure node | |
| CN218836271U (en) | Clamping structure of aluminum profile tractor | |
| CN215663321U (en) | Cantilever beam buckle extending structure and rotating structure | |
| CN219648592U (en) | Wire twisting machine with wire breakage alarm automatic stop structure | |
| CN215208205U (en) | Pulley block precision casting | |
| CN216991042U (en) | Sliding device of horizontal machine tool fixed cutter head clamp |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |