CN108626260B - Dual-function clutch transmission with overload protection - Google Patents
Dual-function clutch transmission with overload protection Download PDFInfo
- Publication number
- CN108626260B CN108626260B CN201810679405.0A CN201810679405A CN108626260B CN 108626260 B CN108626260 B CN 108626260B CN 201810679405 A CN201810679405 A CN 201810679405A CN 108626260 B CN108626260 B CN 108626260B
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- Prior art keywords
- sliding core
- spring
- shaft sleeve
- hole
- transmission shaft
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Classifications
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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
- F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
- F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
- F16D7/06—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers
- F16D7/08—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers moving axially between engagement and disengagement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention discloses a double-function clutch transmission device with an overload protection function, which comprises a transmission shaft sleeve, a clutch gear, a sliding core and a manual and electric switching mechanism, wherein the transmission shaft sleeve comprises a tooth part, the sliding core is arranged on the inner side of the transmission shaft sleeve in a sliding way, the clutch gear can rotate the shaft sleeve and is arranged on the outer side of the transmission shaft sleeve, a plurality of through holes are distributed on the side wall of the transmission shaft sleeve, a plurality of grooves are formed on the inner side of the clutch gear, a first annular groove and a second annular groove are formed on the outer side of the sliding core, an annular flange is formed between the first annular groove and the second annular groove, steel balls are arranged in each through hole, the manual and electric switching mechanism is arranged above the sliding core, and a spring is propped between the lower end of the sliding core and the transmission shaft sleeve and presses the sliding core on the manual switching mechanism. The invention has simple structure, has the manual and electric switching function, can effectively protect the motor in overload condition, and has higher safety.
Description
Technical Field
The invention relates to a double-function clutch transmission device with an overload protection function.
Background
The traditional earthing switch that is arranged in the medium voltage electrical equipment, its divide-shut brake operation is generally gone on through manual mode, not only inefficiency has certain danger moreover, along with the progress of power equipment manufacturing technology, power equipment power supply quality is more and more stable, for reducing transformer operation work load, improve electric power system's unmanned on duty, an electric operating device has appeared afterwards, it includes the motor, drive mechanism and is used for supporting motor, drive mechanism's casing, drive mechanism is used for being connected with earthing switch's operating shaft, the motor passes through drive mechanism and drives earthing switch's operating shaft forward or reverse rotation, thereby realize earthing switch's divide-shut brake operation. However, when overload occurs, the device is easy to damage the motor, and certain potential safety hazard exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the double-function clutch transmission device with the overload protection function, which has a simple structure, can effectively protect a motor in the overload condition and has higher safety.
In order to achieve the aim, the invention provides a dual-function clutch transmission with an overload protection function, which comprises a transmission shaft sleeve, a clutch gear, a sliding core and a manual and electric switching mechanism, wherein the transmission shaft sleeve comprises a tooth part, the sliding core is arranged on the inner side of the transmission shaft sleeve in a sliding way, the clutch gear is rotatably sleeved on the outer side of the transmission shaft sleeve, a plurality of through holes are circumferentially distributed on the side wall of the transmission shaft sleeve, a plurality of grooves corresponding to the through holes are arranged on the inner side of the clutch gear, a first annular groove and a second annular groove are sequentially arranged on the outer side of the sliding core from top to bottom, an annular flange is formed between the first annular groove and the second annular groove, steel balls capable of radially moving are arranged in each through hole, the steel ball can form the transmission connection between the transmission shaft sleeve and the clutch gear when keeping between recess and through-hole, and manual switching mechanism sets up in the slide core top and is used for restricting slide core ascending position, support between slide core lower extreme and the transmission shaft sleeve and be equipped with the spring, this spring will the slide core compresses tightly on manual switching mechanism, manual switching mechanism can respectively with slide core restriction make annular flange and through-hole corresponding position or make second ring channel and through-hole corresponding position, when annular flange is in the position corresponding with the through-hole, it can keep the steel ball between through-hole and recess, and when the overload, the steel ball can promote slide core downward movement and enter into in the first ring channel under the interference effect of recess inner wall and annular flange.
The technical scheme has the advantages that the tooth part and the clutch gear of the driving shaft sleeve are respectively used for being in transmission connection with the motor output shaft and the operating shaft of the grounding switch, when the driving shaft sleeve is in a motor driving state, the manual-electric switching mechanism limits the sliding core to the position corresponding to the through hole, the annular flange can keep the steel balls between the through hole and the groove, so that transmission connection between the driving shaft sleeve and the clutch gear can be formed, the motor can drive the operating shaft of the grounding switch to rotate so as to realize switching-on and switching-off, when the driving shaft sleeve is in an overload state, the acting force of the steel balls given to the inner wall of the groove is larger than the acting force of the steel balls given to the annular flange, the steel balls can be in interference fit with the annular flange under the action of the inner wall of the groove, so that the sliding core is pushed to move downwards and compress the spring, and the steel balls can enter into the first annular groove, so that transmission connection between the driving shaft sleeve and the clutch gear is disconnected, overload damage of the motor is prevented, when the driving shaft sleeve is in a manual driving state, the acting force of the steel balls given to the steel balls can enter the second annular groove to the position corresponding to the through hole, and the second annular groove can be driven, and the driving shaft can not rotate, and a worker can rotate manually. The invention has simple structure, has the manual and electric switching function, and can rapidly cut off the transmission connection between the motor and the operation shaft when in overload, thereby effectively protecting the motor, preventing the motor from being damaged and having better safety.
The manual-electric switching mechanism comprises a clamping ring, a push rod and an electromagnetic driving module, wherein the clamping ring is embedded at the upper end of the transmission shaft sleeve and can prevent the sliding core from being separated upwards, the electromagnetic driving module is arranged above the push rod and is used for driving the push rod to move downwards, the push rod comprises a first abutting part and a second abutting part, the first abutting part is used for abutting and matching with the upper end of the transmission shaft sleeve, the second abutting part is used for abutting and matching with the sliding core, when the electromagnetic driving module is electrified, the electromagnetic driving module can drive the sliding core to move downwards to a position where the annular flange corresponds to the through hole, when the electromagnetic driving module is powered off, the sliding core moves upwards under the action of a spring and abuts against the clamping ring, and meanwhile the sliding core is located at a position where the second annular groove corresponds to the through hole.
The electromagnetic driving module has the advantages that when the electromagnetic driving module is electrified, the electromagnetic driving module can drive the push rod to move downwards and press the push rod downwards at the position where the first abutting part abuts against the transmission shaft sleeve, due to the arrangement of the second abutting part, the push rod can also push the sliding core to move downwards to the position where the annular flange corresponds to the through hole when moving downwards, the electromagnetic driving module is in an electric driving state, when the electromagnetic driving module is powered off, the sliding core moves upwards under the action of the spring and abuts against the clamping ring, the push rod can also move upwards for a certain distance under the pushing of the sliding core, and the sliding core is located at the position where the second annular groove corresponds to the through hole. The switching between the manual driving state and the electric driving state can be realized by controlling the on-off of the electromagnetic driving module.
As a further development of the invention, the spring comprises a first spring and a second spring arranged coaxially, the first spring being continuously compressed between the slide core and the driving sleeve, the second spring being compressed between the slide core and the driving sleeve only in the event of overload.
The technical scheme has the advantages that when the sliding core is overloaded, the first spring and the second spring act on the sliding core at the same time and counterbalance the acting force given to the steel balls by the inner wall of the sliding groove, and when the sliding core is in a manual driving state, the sliding core is only propped against the clamping ring through the first spring, so that when the sliding core is switched from the manual driving state to an electric driving state, the electromagnetic driving module only needs to work by overcoming the acting force of the first spring, the load of the electromagnetic driving module can be reduced, and the service life and the safety are improved.
As a further improvement of the invention, the sliding core comprises an axially extending inner hole, the lower end of the push rod is movably arranged in the inner hole in a penetrating way, the lower end of the inner hole is provided with a flaring, an annular gap is formed at the outer side of the lower end of the sliding core, the first spring is sleeved at the annular gap, and the second spring is sleeved at the lower end of the push rod and is inserted in the flaring.
The technical scheme has the advantages that the first spring and the second spring are not easy to shift during operation, and the working stability is improved.
As a further improvement of the invention, the groove is provided with an opening at one end of the clutch gear, and the clutch gear can axially slide along the driving shaft sleeve.
The technical scheme has the advantage of being convenient for the installation and the disassembly of the clutch gear and the steel balls.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of an embodiment of the present invention;
FIG. 3 is an axial cross-sectional view of an embodiment of the present invention in a manual drive state;
FIG. 4 is an axial cross-sectional view of an embodiment of the present invention in a motor-driven state;
FIG. 5 is an axial cross-sectional view of an embodiment of the present invention in an overload condition;
fig. 6 is a cross-sectional view of section A-A of fig. 3.
Detailed Description
The embodiment of the dual-function clutch transmission device with overload protection function of the invention is shown in figures 1 to 6 and comprises a transmission shaft sleeve 1, a clutch gear 2, The slide core 3 and the manual/electric switching mechanism, the driving shaft sleeve 1 comprises a tooth part 11, the slide core 3 is arranged on the inner side of the driving shaft sleeve 1 in a sliding way, the clutch gear 2 is rotatably sleeved on the outer side of the driving shaft sleeve 1, a plurality of through holes 12 are circumferentially distributed on the side wall of the driving shaft sleeve 1, a plurality of grooves 21 corresponding to the through holes 12 are arranged on the inner side of the clutch gear 2, a first annular groove 31 and a second annular groove 32 are sequentially arranged on the outer side of the slide core 3 from top to bottom, an annular flange 33 is formed between the first annular groove 31 and the second annular groove 32, steel balls 5 capable of radially moving are arranged in each through hole 12, and transmission connection between the driving shaft sleeve 1 and the clutch gear 2 can be formed when the steel balls 5 are kept between the grooves 21 and the through holes 12, the manual-electric switching mechanism 4 is arranged above the slide core 3 and used for limiting the ascending position of the slide core 3, a spring is propped between the lower end of the slide core 3 and the transmission shaft sleeve 1, the spring presses the slide core 3 on the manual-electric switching mechanism, the manual-electric switching mechanism can respectively limit the slide core 3 to a position corresponding to the annular flange 33 and the through hole 12 or a position corresponding to the second annular groove 32 and the through hole 12, when the annular flange 33 is positioned at a position corresponding to the through hole 12, the annular flange 33 can keep the steel ball 5 between the through hole 12 and the groove 21, and when overload occurs, the steel ball 5 can push the slide core 3 to move downwards under the interference effect of the inner wall of the groove 21 and the annular flange 33 and enter the first annular groove 31 (as shown in fig. 5). The manual/electric switching mechanism comprises a clamping ring 61, The push rod 62 and the electromagnetic driving module, the electromagnetic driving module comprises a magnetic block 631 and a coil 632, the clamping ring 61 is embedded at the upper end of the driving shaft sleeve 1 and can prevent the sliding core 3 from being separated upwards, the electromagnetic driving module is arranged above the push rod 62 and is used for driving the push rod 62 to move downwards, the push rod 62 comprises a first abutting part 621 and a second abutting part 622, the first abutting part 621 is used for abutting and matching with the upper end of the driving shaft sleeve 1, the second abutting part 622 is used for abutting and matching with the sliding core 3, when the electromagnetic driving module is electrified, the electromagnetic driving module can drive the sliding core 3 to move downwards to a position where the annular flange 33 corresponds to the through hole 12 (as shown in fig. 4), and when the electromagnetic driving module is powered off, the sliding core 3 moves upwards under the action of a spring and abuts against the clamping ring 61, and meanwhile the sliding core 3 is located at a position where the second annular groove 32 corresponds to the through hole 12 (as shown in fig. 3). The springs comprise a first spring 71 and a second spring 72 coaxially arranged, wherein the first spring 71 is continuously compressed between the slide core 3 and the driving sleeve 1, and the second spring 72 is compressed between the slide core 3 and the driving sleeve 1 only when overload occurs (as shown in figures 3,4 and 5). The sliding core 3 comprises an inner hole 34 extending axially, the lower end of the push rod 62 movably penetrates through the inner hole 34, a flaring 341 is arranged at the lower end of the inner hole 34, an annular gap 35 is formed in the outer side of the lower end of the sliding core 3, a spring pad 13 is embedded at the lower end of the driving shaft sleeve 1, the upper end of the first spring 71 is sleeved at the annular gap 35, the upper end of the second spring 72 is sleeved at the lower end of the push rod 62 and inserted into the flaring 341, and the lower ends of the first spring 71 and the second spring 72 are both propped against the spring pad 13. The recess 21 is provided with an opening 211 at one end of the clutch gear 2, and the clutch gear 2 can slide axially along the outdrive 1.
The above examples are only one of the preferred embodiments of the present invention, and the ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the scope of the present invention.
Claims (3)
1. The utility model provides a take dual-functional separation and reunion transmission of overload protection function, includes transfer sleeve, clutch gear, slide core and manual electric switching mechanism, and the transfer sleeve includes the tooth portion, and slide core slides and sets up in the inboard of transfer sleeve, and the rotatable cover of clutch gear is established in the outside of transfer sleeve, and the circumference distributes on the lateral wall of transfer sleeve has a plurality of through-holes, and the inboard of clutch gear is provided with a plurality of recesses corresponding with the through-hole, slide core outside has set gradually first ring channel and second ring channel from top to bottom, is formed with annular flange between first ring channel and the second ring channel, all is provided with the steel ball that can radial motion in every the through-hole, the steel balls can form transmission connection between the transmission shaft sleeve and the clutch gear when being kept between the groove and the through hole, the manual-electric switching mechanism is arranged above the sliding core and used for limiting the ascending position of the sliding core, a spring is propped between the lower end of the sliding core and the transmission shaft sleeve and presses the sliding core on the manual switching mechanism, the manual-electric switching mechanism can respectively limit the sliding core to the position corresponding to the annular flange and the through hole or the position corresponding to the second annular groove and the through hole, when the annular flange is positioned at the position corresponding to the through hole, the steel balls can be kept between the through hole and the groove, and when overload occurs, the steel balls can push the sliding core to move downwards under the interference action of the inner wall of the groove and the annular flange and enter the first annular groove; the manual-electric switching mechanism comprises a clamping ring, a push rod and an electromagnetic driving module, wherein the clamping ring is embedded at the upper end of the transmission shaft sleeve and can prevent the sliding core from being separated upwards, the electromagnetic driving module is arranged above the push rod and is used for driving the push rod to move downwards, the push rod comprises a first abutting part and a second abutting part, the first abutting part is used for abutting fit with the upper end of the transmission shaft sleeve, the second abutting part is used for abutting fit with the sliding core, when the electromagnetic driving module is electrified, the electromagnetic driving module can drive the sliding core to move downwards to a position corresponding to the annular flange and the through hole, when the electromagnetic driving module is powered off, the sliding core moves upwards under the action of the spring and abuts against the clamping ring, meanwhile, the sliding core is located at a position corresponding to the second annular groove and the through hole, the spring comprises a first spring and a second spring which are coaxially arranged, the first spring is continuously compressed between the sliding core and the transmission shaft sleeve, the second spring is compressed between the sliding core and the transmission shaft sleeve only when the electromagnetic driving module is overloaded, the spring pad is embedded at the lower end of the transmission shaft sleeve, and the lower ends of the first spring and the second spring are both abutted to the spring pad.
2. The dual clutch transmission with overload protection function according to claim 1, wherein the sliding core comprises an axially extending inner hole, the lower end of the push rod is movably arranged in the inner hole in a penetrating manner, a flaring is arranged at the lower end of the inner hole, an annular gap is arranged at the outer side of the lower end of the sliding core, the first spring is sleeved at the annular gap, and the second spring is sleeved at the lower end of the push rod and is inserted in the flaring.
3. The dual clutch transmission with overload protection as claimed in claim 1 or 2, wherein the recess is provided with an opening at one end of a clutch gear, and the clutch gear is capable of sliding axially along the driving shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679405.0A CN108626260B (en) | 2018-06-27 | 2018-06-27 | Dual-function clutch transmission with overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679405.0A CN108626260B (en) | 2018-06-27 | 2018-06-27 | Dual-function clutch transmission with overload protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108626260A CN108626260A (en) | 2018-10-09 |
| CN108626260B true CN108626260B (en) | 2025-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810679405.0A Active CN108626260B (en) | 2018-06-27 | 2018-06-27 | Dual-function clutch transmission with overload protection |
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| Country | Link |
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| CN (1) | CN108626260B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113300535A (en) * | 2021-06-21 | 2021-08-24 | 上海大华电器设备有限公司 | Mechanical clutch device of three-station switch motor of environment-friendly gas-insulated switchgear |
| CN113364103B (en) * | 2021-07-16 | 2022-09-30 | 杭州杂货电科技有限公司 | Charging cabinet with gear overload protection device |
| CN119687261B (en) * | 2024-12-16 | 2025-09-23 | 南京拓耘达智慧科技有限公司 | Electromagnetic control-based manual and electric switching device of electric actuator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208381145U (en) * | 2018-06-27 | 2019-01-15 | 温州盛禾机械科技有限公司 | Difunctional clutch transmission with overload protection function |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07237146A (en) * | 1994-02-28 | 1995-09-12 | Zuien Ra | Overload power release device for power tool |
| CN201102215Y (en) * | 2007-06-20 | 2008-08-20 | 仲展实业有限公司 | Structure improved quick joint |
| DE202007009353U1 (en) * | 2007-07-04 | 2007-09-13 | Chung Jaan Industrial Co., Ltd., Taiping | A quick coupling device |
| TWI354616B (en) * | 2008-10-29 | 2011-12-21 | Bo Shen Chen | Multipurpose tool assembly |
| CN103511493B (en) * | 2012-06-20 | 2016-12-21 | Asco电力技术公司 | Arrangement of clutch and the reducing gear including this arrangement of clutch |
| CN103334644B (en) * | 2013-07-25 | 2015-04-15 | 四川润智兴科技有限公司 | High-safety clutch electric lock |
| CN104847804B (en) * | 2014-12-19 | 2018-06-19 | 北京宝沃汽车有限公司 | Quick Connect Kit and Engine Block Test equipment |
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2018
- 2018-06-27 CN CN201810679405.0A patent/CN108626260B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208381145U (en) * | 2018-06-27 | 2019-01-15 | 温州盛禾机械科技有限公司 | Difunctional clutch transmission with overload protection function |
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| Publication number | Publication date |
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| CN108626260A (en) | 2018-10-09 |
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