CN113200472B - Friction transmission mechanism of electric chain hoist - Google Patents
Friction transmission mechanism of electric chain hoist Download PDFInfo
- Publication number
- CN113200472B CN113200472B CN202110478651.1A CN202110478651A CN113200472B CN 113200472 B CN113200472 B CN 113200472B CN 202110478651 A CN202110478651 A CN 202110478651A CN 113200472 B CN113200472 B CN 113200472B
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- CN
- China
- Prior art keywords
- shaft
- flange
- friction
- spring group
- section
- 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.)
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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
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/46—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member
- F16D13/48—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
- F16D13/50—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member in which the clutching pressure is produced by springs only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/70—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members
- F16D13/71—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members in which the clutching pressure is produced by springs only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/75—Features relating to adjustment, e.g. slack adjusters
- F16D13/752—Features relating to adjustment, e.g. slack adjusters the adjusting device being located in the actuating mechanism arranged outside the clutch
Abstract
The invention discloses a friction transmission mechanism of a ring chain electric hoist, which comprises a motor shaft of a hoisting motor, a gear shaft with a connecting flange, wherein the gear shaft is coaxially arranged with the motor shaft, the gear shaft is provided with a large supporting bearing, a disc spring group, a first driving flange with a single friction plate and a positioning bearing are arranged at the output shaft section of the motor shaft towards the shaft end, a linkage gear sleeve connected with a connecting flange spline is also arranged on the output shaft section, the side end surface of the linkage gear sleeve faces the single friction plate, a second driving flange with a double friction plate is accommodated in the linkage gear sleeve, the second driving flange is connected with the output shaft section spline, and each friction plate in the double friction plates is contacted with the inner side wall opposite to the linkage gear sleeve. When the disc spring group is in friction transmission, on one hand, pressure is distributed by three coaxially arranged friction plates, the pressure of each friction plate is correspondingly reduced, and the axial stress of the large support bearing is small, so that the bearing can be selected and miniaturized, and on the other hand, the torque transmitted under the condition that the same working pressure is applied to the disc spring group is larger.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a friction transmission mechanism of a chain electric hoist, belonging to the technical field of chain electric hoists.
[ background of the invention ]
The friction transmission mechanism of the existing endless chain electric hoist comprises a gear box driven by a lifting motor, a gear shaft with a connecting flange part is supported in the gear box, the lifting motor comprises a motor shaft and a disc spring group sleeved on one side end of the motor shaft, and a driving flange and a positioning bearing are sequentially arranged on a shaft outlet section of the motor shaft extending into the gear box towards the shaft end of the motor shaft. The driving flange is connected with the output shaft section through a spline; the connecting flange part is provided with a blind hole, and the positioning bearing is in transition fit with the blind hole; one side of the driving flange is sintered with a friction plate which is in friction transmission connection with the flange part.
By carefully analyzing the above structure, it is easy to find that the following technical disadvantages exist:
because the motor shaft drives the gear shaft to rotate and drives the flange part through the friction transmission of the single friction plate, the friction plate has larger pressure due to large friction transmission, and the gear box has larger volume when the large torque transmission is designed, so that the miniaturization of the box body is difficult to realize.
[ summary of the invention ]
The invention aims to solve the technical problem of providing a friction transmission mechanism of a chain electric hoist aiming at the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
friction drive mechanism of endless chain electric block, including the motor shaft that rises the motor, the gear shaft of the area flange of connecting of arranging with the motor shaft coaxial line, the gear shaft is equipped with big supporting bearing, the play hub spindle section of motor shaft arranges dish spring group towards its axle head in order, take the first drive flange and the location bearing of single friction disc, the play hub spindle section is established to dish spring group cover, first drive flange is connected with play hub spindle section splined connection, location bearing axial positioning is at the axle head of play hub spindle section, location bearing is located flange and the two transition fit, its improvement point lies in: the output shaft section is also provided with a linkage gear sleeve connected with a spline of the connecting flange, the side end surface of the linkage gear sleeve faces the single friction plate, a second driving flange with double friction plates is accommodated in the linkage gear sleeve, the second driving flange is connected with the spline of the output shaft section, and each friction plate in the double friction plates is contacted with the inner wall of the side opposite to the linkage gear sleeve.
The shaft outlet section is sleeved with a bushing positioned between the first driving flange and the second driving flange, and the linkage gear sleeve is supported by a bearing arranged on the bushing.
The bushing is in spline connection with the shaft outlet section.
The motor shaft is also provided with a check ring and an adjusting nut for adjusting the elasticity of the disc spring group on the shaft outlet section of the motor shaft, and the check ring and the adjusting nut are sequentially positioned behind the disc spring group.
The invention has the following advantages and beneficial effects:
the output shaft section of the motor shaft is additionally provided with a linkage gear sleeve, and the linkage gear sleeve is internally provided with a second driving flange with double friction plates.
[ description of the drawings ]
Fig. 1 is a schematic structural view of the present invention.
[ detailed description ] embodiments
Referring to fig. 1, the friction transmission mechanism of the endless chain electric hoist includes a motor shaft 1 of a lifting motor, a gear shaft 2 with a coupling flange 21 and arranged coaxially with the motor shaft, the gear shaft is provided with a large support bearing 8, a disc spring group 32, a first driving flange 31 with a single friction plate 31-1 and a positioning bearing 30 are sequentially arranged towards the shaft end of an output shaft section 11 of the motor shaft, the output shaft section is sleeved with the disc spring group, the first driving flange is connected with the output shaft section through a spline, the positioning bearing 30 is axially positioned at the shaft end of the output shaft section 11, the positioning bearing 30 is positioned in the coupling flange 21 and is in transition fit with the coupling flange 21, and the improvement point is as follows: the output shaft section 11 is further provided with a linkage gear sleeve 4 in spline connection with the connecting flange 21, the linkage gear sleeve 4 faces the single friction plate 31-1 at the side end face (shown as the left end face) of the linkage gear sleeve, a second driving flange 5 with a double friction plate 5-1 is accommodated in the linkage gear sleeve 4, the second driving flange 5 is in spline connection with the output shaft section 11, and each friction plate in the double friction plate 5-1 is in contact with the inner side wall of the linkage gear sleeve 4 facing the side.
As shown in fig. 1, a coupling flange 21 at the left end of the gear shaft 2 is integrally formed with the gear shaft 2.
The shaft outlet section 11 of the motor shaft 1 extends into a gear box (not shown); the gear shaft 2 is supported in the gear box by means of a large support bearing 8.
The disc spring group 32 is formed by overlapping 5 disc springs, and two pairs of disc springs at the outer side are oppositely overlapped by each pair of disc spring bowls.
A single friction plate 31-1 is sintered on the right side of the first drive flange 31.
The positioning bearing 30 is located in a blind hole (not labeled) formed in the coupling flange 21, and the left side of the positioning bearing 30 is positioned on a shaft shoulder (not labeled) of the output shaft section 11 and the right side thereof is positioned by a shaft end retainer ring X1.
The linkage gear sleeve 4 is connected with the inner spline and the outer spline of the connecting flange 21; two friction plates are respectively sintered at two sides of the second driving flange 5 to form a second driving flange with double friction plates; the second driving flange 5 is connected with the output shaft section 11 in an internal spline and an external spline.
The positioning bearing 30 ensures that the axis of the motor shaft 1 coincides with the axis of the gear shaft 2, and when the electric chain hoist normally works, the positioning bearing 30 only plays a supporting role, so that the electric chain hoist is in a static state, and when the electric chain hoist generates overload slipping, the positioning bearing 30 rotates.
The shaft outlet section 11 is sleeved with a bushing 6 positioned between the first driving flange 31 and the second driving flange 5, the linkage gear sleeve 4 is supported by a bearing 7 arranged on the bushing 6, and the inner ring and the outer ring of the bearing 7 are respectively positioned on a retaining shoulder 61 of the bushing 6 and a step (not marked) of the linkage gear sleeve 4; the inner side of the second drive flange 5 is positioned by a shaft collar X2 fitted on the output shaft section 11.
The bush 6 is connected with the output shaft section 11 through an internal spline and an external spline.
The motor shaft is also provided with a retainer ring 33 and an adjusting nut 34 used for adjusting the elasticity of the disc spring group on the shaft outlet section, the retainer ring and the adjusting nut are sequentially positioned behind the disc spring group, and the adjusting nut is in threaded connection with the shaft outlet section.
Claims (3)
1. The utility model provides a friction drive mechanism of endless chain electric block, including the motor shaft that rises to rise the motor, the gear shaft of the area flange of arranging with the motor shaft coaxial line, the gear shaft is equipped with big supporting bearing, the flange that is located the gear shaft left end takes with gear shaft integrated into one piece, the play axial section of motor shaft arranges dish spring group towards its axle head in order, take the first drive flange and the location bearing of single friction piece, the axle section is established to dish spring group cover, first drive flange and play axial section spline joint, location bearing axial positioning is at the axle head of play axial section, location bearing is located flange and the two transition fit, its characterized in that: the output shaft section is also provided with a linkage gear sleeve connected with a spline of the connecting flange, the side end surface of the linkage gear sleeve faces to the single friction plate, a second driving flange with double friction plates is accommodated in the linkage gear sleeve, the second driving flange is connected with the spline of the output shaft section, one friction plate of the double friction plates is contacted with the opposite side inner wall of the linkage gear sleeve, and the other friction plate is contacted with the connecting flange; the motor shaft is also provided with a check ring and a single adjusting nut for adjusting the elasticity of the disc spring group on the shaft outlet section, the check ring and the adjusting nut are sequentially positioned behind the disc spring group, and the disc spring group, the check ring and the adjusting nut are sequentially arranged; each pair of disc spring bowl openings in the disc spring group are oppositely overlapped.
2. The friction transmission mechanism of the electric chain hoist according to claim 1, characterized in that: the shaft outlet section is sleeved with a bushing positioned between the first driving flange and the second driving flange, and the linkage gear sleeve is supported by a bearing arranged on the bushing.
3. The friction transmission mechanism of the electric chain hoist according to claim 2, characterized in that: the bushing is in spline connection with the shaft outlet section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478651.1A CN113200472B (en) | 2021-04-23 | 2021-04-23 | Friction transmission mechanism of electric chain hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478651.1A CN113200472B (en) | 2021-04-23 | 2021-04-23 | Friction transmission mechanism of electric chain hoist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113200472A CN113200472A (en) | 2021-08-03 |
| CN113200472B true CN113200472B (en) | 2022-09-20 |
Family
ID=77030042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110478651.1A Active CN113200472B (en) | 2021-04-23 | 2021-04-23 | Friction transmission mechanism of electric chain hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113200472B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2179487Y (en) * | 1993-10-26 | 1994-10-12 | 周永平 | Air cylinder axial pnuematic clutch |
| JPH07157290A (en) * | 1993-12-03 | 1995-06-20 | Zojirushi Chain Block Kk | Manually operated chain block |
| CN102192255A (en) * | 2010-09-09 | 2011-09-21 | 徐州五洋科技有限公司 | Safety clutch for drilling machine |
| CN105253800A (en) * | 2014-07-15 | 2016-01-20 | 张文忠 | Quick adjustment device for weight limiter of electric chain hoist with loads |
| CN105485196A (en) * | 2015-12-29 | 2016-04-13 | 武汉正通传动技术有限公司 | Torque limiter provided with gear friction plates |
| CN205315538U (en) * | 2015-12-29 | 2016-06-15 | 武汉正通传动技术有限公司 | Take torque limiter of gear friction disc |
| CN109236880A (en) * | 2018-10-23 | 2019-01-18 | 株洲时代新材料科技股份有限公司 | A kind of torque limit formula shaft coupling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10066683B2 (en) * | 2015-04-10 | 2018-09-04 | Goodrich Corporation | Clutch for a winch |
-
2021
- 2021-04-23 CN CN202110478651.1A patent/CN113200472B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2179487Y (en) * | 1993-10-26 | 1994-10-12 | 周永平 | Air cylinder axial pnuematic clutch |
| JPH07157290A (en) * | 1993-12-03 | 1995-06-20 | Zojirushi Chain Block Kk | Manually operated chain block |
| CN102192255A (en) * | 2010-09-09 | 2011-09-21 | 徐州五洋科技有限公司 | Safety clutch for drilling machine |
| CN105253800A (en) * | 2014-07-15 | 2016-01-20 | 张文忠 | Quick adjustment device for weight limiter of electric chain hoist with loads |
| CN105485196A (en) * | 2015-12-29 | 2016-04-13 | 武汉正通传动技术有限公司 | Torque limiter provided with gear friction plates |
| CN205315538U (en) * | 2015-12-29 | 2016-06-15 | 武汉正通传动技术有限公司 | Take torque limiter of gear friction disc |
| CN109236880A (en) * | 2018-10-23 | 2019-01-18 | 株洲时代新材料科技股份有限公司 | A kind of torque limit formula shaft coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113200472A (en) | 2021-08-03 |
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