CN204061609U - A kind of friction coupling for electric screw press - Google Patents
A kind of friction coupling for electric screw press Download PDFInfo
- Publication number
- CN204061609U CN204061609U CN201420283970.2U CN201420283970U CN204061609U CN 204061609 U CN204061609 U CN 204061609U CN 201420283970 U CN201420283970 U CN 201420283970U CN 204061609 U CN204061609 U CN 204061609U
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- friction
- friction component
- coupler casing
- nut
- component
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- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000003746 surface roughness Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000002783 friction material Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The utility model discloses a kind of electric screw press friction coupling, it comprises friction component, two backing plates, disc spring, nut and coupler casing.Friction component comprises friction plate and steel disc alternately laminated with it, the steel disc of its both ends of the surface contacts with two backing plate phase planes respectively, one backing plate and disc spring end contact, another backing plate is contained in the bottom portion of groove of coupler casing one end, the coupler casing the other end is provided with splined hole, for being connected by spline pair with motor shaft, accommodating friction component and gear shaft end in groove, friction component connects gear shaft and coupler casing respectively by spline pair.Groove walls has screw thread, for the disc spring by contacting with it, pressure is passed to friction component after nut screws with screw thread, compacted friction component forms friction torque, so that the driving power from motor shaft is passed to gear shaft by coupler casing and friction component, realizes transmission.
Description
Technical field
The utility model belongs to electric screw press field, is related specifically to a kind of friction coupling of special applicable electric screw press.
Background technique
In prior art, the mode that the friction coupling of electric screw press generally adopts friction plate to be fitted in gear both ends of the surface is in transmission connection, as shown in Figure 1, Motor torque is delivered to friction sleeve 13 by motor shaft 10 by flat key 12, friction sleeve 13, friction plate 3 and friction flange 14 form friction pair under being acted on by the disc spring 6 of nut 8 screw-threaded coupling, friction flange 14 is fixed together by mechanical parts with gear 15 end face and forms an entirety, thus makes friction pair that the moment of torsion of motor is passed to gear 15.
In such as accompanying drawing 1 under Placement, friction pair directly contacts with gear face, and friction pair can produce a large amount of frictional heats in transmitting torque process, temperature around it is sharply raised, thus make the gear contacted with it be in the condition of high temperature, and the axial force that produces when making motor shaft will bear working gear of this connecting mode and radial force, motor shaft stressed complicated time higher to the performance requirement of motor, require that it can bear complicated applied force and still can normally work.
The problem brought as Placement in accompanying drawing 1 is: (1) hot soak condition lower gear easily occurs broken teeth, the situations such as end face is burnt, and its working life is low, often needs more gear changing; (2) need to select high performance motor could meet the usage requirement at this place, the motor shaft of high performance motor can afford for a long time from the radial force of gear and the comprehensive function of axial force and still can normally work, but selects high performance motor greatly to increase user cost; (3) this friction pair can not the size of the institute of perception in time transmitting torque, cannot form overload protection.
Model utility content
For above defect or the Improvement requirement of prior art; the utility model provides a kind of friction coupling for electric screw press; its object is to connect motor shaft and gear; Motor torque is passed to gear; and gear can be made away from the high-temperature zone of friction pair simultaneously; and overload protection is formed to gear, also can change the stressed of motor shaft, reduce the performance requirement to motor.
For achieving the above object, the utility model provides a kind of electric screw press friction coupling, it is characterized in that, this friction coupling comprises,
Friction component, it comprises multiple friction plate and the multiple steel discs alternately laminated with described friction plate, and described friction component two outer side surface is steel disc;
Two backing plates, it is for contacting with the steel disc phase plane being arranged in described friction component two outer side surface respectively, so that external pressure is passed to described friction component;
Disc spring, this disc spring and wherein the first backing plate end contact, for compressing this first backing plate and stable for external pressure being passed to this first backing plate;
Nut, it is connected with described disc spring and both center lines overlap, and the nut after being screwed by screw thread is for the described disc spring of compression;
Coupler casing, described coupler casing one stomidium inwall is provided with splined hole, for being connected by spline pair with motor shaft, the other end end face has groove, described groove inner wall one end offers screw thread, described nut is by this screw thread and described coupler casing stressed joint, and the second backing plate is placed in described bottom portion of groove, and described friction component to be placed in this groove by this second backing plate and to compress described disc spring and the compression of the first backing plate realization to friction component by described nut;
Described friction component is connected with described gear shaft and coupler casing respectively, and the friction torque formed by compacted friction component, can be passed to gear shaft by the driving power from motor shaft by this coupler casing and friction component, realize transmission.
Further, described gear shaft end is placed in this groove, and described steel disc and described friction plate are circular and are sleeved on this end, and the friction component that described friction plate and steel disc form is connected gear shaft and coupler casing respectively by spline pair.
Further, only described steel disc outward edge is connected with coupler casing by spline pair.
Further, only described friction plate inward flange is connected with gear shaft by spline pair.
Further, the inwall that described coupler casing has a thread section offers multiple tapped through hole, fastening screw trip bolt rotates through tapped through hole and contacts with nut and hold out against described nut, for axial lock nut, thus further by comprising the friction component of friction plate and steel disc described in nut and disc spring pressing.
Further, the friction material of described friction plate is different and/or described steel disc surface roughness is different, to make described friction component can have by after axial pressure the friction torque varied in size, for the moment of torsion transmitting different size.
Further, when transmitted moment of torsion is greater than the Maximum Torque that described friction component can bear, produces between described steel disc and described friction plate and slide, to realize the overload protection to coupled mechanical parts.
In general, the above technological scheme conceived by the utility model compared with prior art, has following outstanding beneficial effect:
1, owing to being separated by the friction component of gear and transmitting torque, thus make gear away from high-temperature zone, substantially improve the working environment of gear, decrease the situation of the burnt and broken teeth of end face, extend the working life of gear.
2, connect gear shaft and motor shaft by friction coupling, change the stressing conditions of motor shaft, thus make motor shaft stressed single, reduce the requirement to motor performance, make it to select common motor, reduce the user cost of motor.
3, adopt friction plate and steel disc alternately laminated and form friction component, make it to produce when bearing overload torque to slide, thus overload protection can be formed to gear.
4, the component universality that the utility model is used and standardization level high, change and easy to maintenance, good economy performance.
Accompanying drawing explanation
Fig. 1 is the Placement schematic diagram of friction pair and gear both ends of the surface in electric screw press in prior art;
Fig. 2 is the structural representation of friction coupling in the utility model embodiment;
Fig. 3 is friction component structural representation in the utility model embodiment;
In all of the figs, identical reference character is used for representing identical element or structure, wherein: 1 is coupler casing, and 2 is the second backing plate, 3 is friction plate, and 4 is steel disc, and 5 is the first backing plate, 6 is disc spring, and 7 is fastening screw trip bolt, and 8 is nut, 9 is gear shaft, and 10 is motor shaft, and 11 is spline pair, 111 is steel disc and coupler casing spline pair, and 112 is friction plate and gear shaft spline pair, and 12 is flat key, 13 is friction sleeve, and 14 is friction flange, and 15 is gear.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.In addition, if below in described each mode of execution of the utility model involved technical characteristics do not form conflict each other and just can mutually combine.
As the structural representation that Fig. 2 is friction coupling in the utility model embodiment, center, friction coupling shell 1 one end has hole, hole wall has splined hole, forms spline pair 11 with the spline tooth on motor shaft 10, by spline pair 11, motor shaft is connected with coupler casing 1.Coupler casing 1 the other end has circular groove, groove cell wall intermediate section has splined hole, on the groove cell wall of coupler casing end face, there is screw thread, circular plane second backing plate 2 is positioned over bottom portion of groove, second backing plate 2 upper surface contacts with steel disc 4 phase plane, multiple steel disc 4 and the mutual stacked formation friction component of multiple friction plate 3, in the utility model embodiment, friction plate quantity is 7, steel disc quantity is 8, but in the utility model, the quantity of friction plate and steel disc is not limited, steel disc 4 is all arranged in friction component upper and lower end face, upper end steel disc and lower end steel disc contact with the second backing plate 2 phase plane with the first backing plate 5 respectively, second backing plate 2 and the first backing plate 5 pass to friction component to be made it compacted for the protection of friction component and by the power in the external world and forms friction torque, first backing plate 5 contacts with disc spring 6 above, disc spring 6 is connected with nut 8, the screw thread of nut 8 outer wall screws mutually with coupler casing inner thread, thus compress disc spring 6 downwards, disc spring 6 pressurized has spring-back force after producing distortion, this spring-back force passes to friction component by the first backing plate 5 and makes friction component compacted.
The inwall that coupler casing has a thread section offers multiple tapped through hole, in the utility model embodiment, tapped through hole number is one, but the utility model double thread through hole number does not limit, fastening screw trip bolt 7 is rotated through tapped through hole and contacts with nut 8 and hold out against nut 8, for axial lock nut 8, thus further by nut 8 and disc spring 6 pressing friction assembly, and friction component is axially fixed, can not produce and move axially.
Fig. 3 is friction component structural representation in the utility model embodiment, and the dash area between steel disc 4 and friction plate 3 is the friction material on friction plate end face.Steel disc 4 and friction plate 3 are in circular, circular steel disc 4 outward edge all has spline tooth, the splined hole arranged in the middle of itself and coupler casing 1 circular groove inwall is in mating connection, formation steel disc and coupler casing spline pair 111, realizes connecting of friction component and coupler casing.Circular friction plate 3 inward flange has spline tooth, and it is in mating connection that the outer wall of itself and gear shaft 9 end has splined hole, forms friction plate and gear shaft spline pair 112, realize friction component and be connected by spline pair with gear shaft.
In the utility model embodiment, friction plate material is sintered alloy, the surface roughness Ra of steel disc is 50, but in the utility model, the surface roughness of friction plate material and steel disc is not limited, by the cooperation of the friction plate of different materials and the steel disc of different surface roughness, realize friction component by under uniform pressure effect, there is different friction torque, to realize the moment of torsion transmitting different size.
In the utility model embodiment, the working procedure of friction coupling is:
After electric machine rotation, motor shaft is connected with coupler casing by the spline pair of coupler casing one end, drives coupler casing to rotate.Nut is axial restraint under the effect of the inner thread of fastening screw trip bolt and coupler casing, and disc spring pressing first backing plate 5 by contacting with it, after first backing plate 5 pressurized, pressure is passed to friction component, friction component is firmly compressed and is axially fixed, spline tooth on friction plate inward flange is connected with the splined hole on gear shaft, the outer peripheral spline tooth of steel disc is connected with the splined hole of coupler casing inwall simultaneously, realize connecting gear shaft and coupler casing by friction component, gear shaft is rotated with coupler casing under friction component connects, namely realize coupler casing attachment tooth wheel shaft and motor shaft by friction component and transmit rotation.
In the utility model embodiment, gear and friction component are separated, and can not be subject to friction component due to the thermogenetic temperatures involved that rubs, and motor shaft is only by from coupler casing spline pair active force, stressed single.
In the utility model embodiment, when gear transships, in the friction component of transmitting torque, steel disc slides relative to friction plate, cannot transmit rotation, thus protection gear can not be destroyed.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1., for a friction coupling for electric screw press, for connecting motor shaft and gear shaft, so that motor power is passed to gear, it is characterized in that, this friction coupling comprises:
Friction component, it comprises multiple friction plate (3) and the multiple steel discs (4) alternately laminated with described friction plate, and described friction component two outer side surface is steel disc (4);
Two backing plates (2,5), it is for contacting with steel disc (4) phase plane being arranged in described friction component two outer side surface respectively, so that external pressure is passed to described friction component;
Disc spring (6), this disc spring (6) and wherein the first backing plate (5) end contact, for compressing this first backing plate (5) and stable for external pressure being passed to this first backing plate (5);
Nut (8), it is connected with described disc spring (6) and both center lines overlap, and the nut after being screwed by screw thread is for the described disc spring of compression (6);
Coupler casing (1), described coupler casing one stomidium inwall is provided with splined hole, for being connected by spline pair with motor shaft, the other end end face has groove, described groove inner wall one end offers screw thread, described nut (8) is by this screw thread and described coupler casing stressed joint, second backing plate (2) is placed in described bottom portion of groove, and described friction component to be placed in this groove by this second backing plate and to compress by described nut the compression that described disc spring and the first backing plate realize friction component;
Described friction component is connected with described gear shaft and coupler casing respectively, and the friction torque formed by compacted friction component, can be passed to gear shaft by the driving power from motor shaft by this coupler casing and friction component, realize transmission.
2. a kind of friction coupling for electric screw press according to claim 1, is characterized in that,
Described gear shaft end is placed in this groove, and described steel disc and described friction plate are circular and are sleeved on this end, and the friction component that described friction plate and steel disc form is connected gear shaft and coupler casing respectively by spline pair.
3. a kind of friction coupling for electric screw press according to claim 2, is characterized in that, only described steel disc outward edge is connected with coupler casing by spline pair.
4. a kind of friction coupling for electric screw press according to claim 2, is characterized in that, only described friction plate inward flange is connected with gear shaft by spline pair.
5., according to a kind of friction coupling for electric screw press one of claim 1-4 Suo Shu, it is characterized in that,
The inwall that described coupler casing has a thread section offers multiple tapped through hole;
Fastening screw trip bolt (7) rotates through tapped through hole and contacts with nut (8) and hold out against described nut (8), for axial lock nut (8), thus described in compressing further by nut (8) and disc spring (6), comprise the friction component of friction plate and steel disc.
6. according to a kind of friction coupling for electric screw press one of claim 1-4 Suo Shu, it is characterized in that, the friction material of described friction plate is different and/or described steel disc surface roughness is different, to make described friction component can have by after axial pressure the friction torque varied in size, for the moment of torsion transmitting different size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283970.2U CN204061609U (en) | 2014-05-30 | 2014-05-30 | A kind of friction coupling for electric screw press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283970.2U CN204061609U (en) | 2014-05-30 | 2014-05-30 | A kind of friction coupling for electric screw press |
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| Publication Number | Publication Date |
|---|---|
| CN204061609U true CN204061609U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420283970.2U Expired - Lifetime CN204061609U (en) | 2014-05-30 | 2014-05-30 | A kind of friction coupling for electric screw press |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982563A (en) * | 2014-05-30 | 2014-08-13 | 武汉新威奇科技有限公司 | Friction coupling for electric screw press |
| CN108825862A (en) * | 2018-07-11 | 2018-11-16 | 常州纽克力核电科技有限公司 | A kind of nuclear power teletransmission mechanism |
| CN114994861A (en) * | 2022-06-16 | 2022-09-02 | 中国科学院长春光学精密机械与物理研究所 | Reflector installation positioning device |
-
2014
- 2014-05-30 CN CN201420283970.2U patent/CN204061609U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982563A (en) * | 2014-05-30 | 2014-08-13 | 武汉新威奇科技有限公司 | Friction coupling for electric screw press |
| CN108825862A (en) * | 2018-07-11 | 2018-11-16 | 常州纽克力核电科技有限公司 | A kind of nuclear power teletransmission mechanism |
| CN114994861A (en) * | 2022-06-16 | 2022-09-02 | 中国科学院长春光学精密机械与物理研究所 | Reflector installation positioning device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |