CN104033503A - Transmission mechanism overload protection device - Google Patents
Transmission mechanism overload protection device Download PDFInfo
- Publication number
- CN104033503A CN104033503A CN201410274046.2A CN201410274046A CN104033503A CN 104033503 A CN104033503 A CN 104033503A CN 201410274046 A CN201410274046 A CN 201410274046A CN 104033503 A CN104033503 A CN 104033503A
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- CN
- China
- Prior art keywords
- coupling
- safety pin
- overload protection
- gear shaft
- drive sprocket
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- 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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Abstract
The invention relates to a transmission mechanism overload protection device and belongs to the technical field of transmission devices. According to the device, power reflux is implemented through a gear shaft, a housing, a right half coupling, a left half coupling and a drive wheel shaft, and the motor power is returned to the drive wheel shaft through the gear shaft;when the drive wheel load is excessive, the power transmission between the drive wheel shaft and the motor is cut off through safety pin breaking, and the motor and the transmission mechanism are protected effectively. By means of the transmission mechanism overload protection device, transmission mechanism gearbox gears and the motor can be protected effectively, and the transmission system of entire experimental equipment can be protected; meanwhile, the axial size of the overload protection device is small, and occupied space of the experimental equipment is reduced; the transmission torque is large, and the modular design of the drive wheel shaft in the experimental system can be benefited by the power flux manner; the overload protection device is arranged outside the gearbox and is convenient to change, and system overload can be found conveniently.
Description
Technical field
The present invention relates to transmission device technical field, be specifically related to a kind of overload protection arrangement of driving mechanism.
Background technique
Motor, gearbox, transmission output shaft are power input patterns conventional in much mechanical structure; in this system as overload can cause the impaired or motor burning of gear; thereby cause the damage of whole system, so people adopt various forms of overload protection arrangements impaired to prevent driving mechanism overload.As Chinese patent application gear overload protection mechanism (publication number: CN201110359Y), mainly by the skeleton dish of gear shaft with formed by the floral disc and the snap ring that compress reed; Photoelectric integrating transmission safety protection device (publication number: CN202007982U); comprise belt pulley, safety clutch, optoelectronic switch and detection piece; optoelectronic switch is installed on lathe; when the wearing piece of safety clutch skids suddenly; when pulley speed slows down, optoelectronic switch has been read umber of pulse and has been set umber of pulse lower than PLC, and PLC sends signal; main transmission and feeding transmission quit work, thereby effectively avoid machine tool component and tool damage.A kind of safety protection device (publication number: CN202766721U) of drawing frame transmission; comprise creeling motor; creeling motor is connected with main frame, and the axle sleeve of motor is connected with motor output shaft by key pin, and geared sleeve is on axle sleeve; axle head passes through screw in compression with end cap; front end at output shaft is provided with pressing plate, and dish spring is housed between pressing plate and gear, and pressing plate is fixed with round nut and adjusting screw; friction plate is equipped with respectively in the front and back of gear, by friction driving, protects transmission device.Main Drive of Rolling Mill safety protection device (publication number: CN202725632U), by the first internal spline flange and the second internal spline flange, be arranged on respectively the two ends of external splines safety element, external spline teeth engagement on inner spline gear on spline flange and external splines safety element, the first axle is arranged on respectively external splines safety element two ends with split washer and the second axle axle with split washer is with in split washer mounting groove, clutch shaft bearing and the second bearing are arranged on respectively the two ends of external splines safety element axis hole, the outer ring of bearing and external splines safety element axis hole adopt interference fit, flange shaft is arranged on the inner ring of clutch shaft bearing and the second bearing, and adopt interference fit with bearing inner race, bearing baffle is arranged on the end face of flange shaft one end by bolt, safety installations and gear coupling are used in conjunction with.
Yet, the large and protection weak effect of the axial dimension of the overload protection arrangement of existing driving mechanism.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: how to design a kind of axial dimension little, protect the overload protection arrangement of effective driving mechanism.
(2) technological scheme
In order to solve the problems of the technologies described above, the overload protection arrangement that the invention provides a kind of driving mechanism, comprising: hollow gear shaft 2, housing 3, right half-coupling 4, left half-coupling 5, pad 6, safety pin 7, lining 8, clamp 9, hexagon nut 10, lock washer with tongue at outside 11 and drive sprocket axle 12; Described gear shaft 2 is motor power input end, and described drive sprocket axle 12 is motor power output terminal;
Between described left half-coupling 5 and right half-coupling 4, be provided with connection set, described connection set comprises described pad 6, safety pin 7, lining 8, clamp 9, hexagon nut 10, lock washer with tongue at outside 11, described lining 8 is set in the first dress hole of left half-coupling 5 and right half-coupling 4, and described safety pin 7 is successively through pad 6, lining 8, clamp 9, lock washer with tongue at outside 11 and hexagon nut 10;
Described gear shaft 2 is coaxially arranged with drive sprocket axle 12, and described gear shaft 2 is connected with housing 3, and described housing 3 is connected with right half-coupling 4, and described left half-coupling 4 is connected with drive sprocket axle 12.
Preferably, the smallest cross-sectional size of described safety pin 7, and the quantity of described safety pin 7, lining 8, clamp 9, hexagon nut 10 and lock washer with tongue at outside 11 all can be adjusted according to the minimum loading of driving mechanism and motor.
Preferably, pad 6 is positioned at the outside of safety pin 7, and described pad 6 is blocked by the shaft shoulder of safety pin 7, and described clamp 9 is positioned at the tool withdrawal groove place of safety pin 7.
Preferably, described gear shaft 2 is with housing 3 by spline joint, and described housing 3 is bolted with right half-coupling 4, and described left half-coupling 4 passes through spline joint with drive sprocket axle 12.
(3) beneficial effect
The present invention is realized power and is refluxed by gear shaft, housing, right half-coupling, left half-coupling, drive sprocket axle; motor power is got back to drive sprocket axle place by gear shaft; when driving wheel place load is excessive; with the fracture of safety pin, cut off the transmission of power between drive sprocket axle and motor, thereby effectively protect motor and driving mechanism.By applying the overload protection arrangement of this driving mechanism, can effectively protect driving mechanism gearbox gear and motor, and then protect the transmission system of whole testing installation.Meanwhile, this overload protection arrangement axial dimension is little, has reduced testing installation and has taken up room; Transmitting torque is large, and its power reflux type is conducive to the modular design of drive sprocket axle in pilot system; And overload protection arrangement is outside at gearbox, be convenient to change, be also convenient to find system overload.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention;
Fig. 2 is the enlarged view of I part in Fig. 1.
Wherein, 1-gear; 2-gear shaft; 3-housing; The right half-coupling of 4-; The left half-coupling of 5-; 6-pad; 7-safety pin; 8-lining; 9-clamp; 10-hexagon nut; 11-lock washer with tongue at outside; 12-drive sprocket axle.
Embodiment
For making object of the present invention, content and advantage clearer, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1; the overload protection arrangement that the invention provides a kind of driving mechanism, comprising: hollow gear shaft 2, housing 3, right half-coupling 4, left half-coupling 5, pad 6, safety pin 7, lining 8, clamp 9, hexagon nut 10, lock washer with tongue at outside 11 and drive sprocket axle 12.This device is upper and lower axially symmetric structure, and right half-coupling 4, left half-coupling 5 are only in first half demonstration, and the details of the two connection set only shows in Lower Half.Gear in Fig. 1 does not belong to the part of apparatus of the present invention.Described gear shaft 2 is motor power input end, described drive sprocket axle 12 is motor power output terminal, drive sprocket axle 12 one end are spline, the other end is connected with driving wheel (part that does not belong to apparatus of the present invention), power is got back to drive sprocket axle 12 after coaxially arranged device of the present invention, has effectively reduced taking up room of transmission device.
As shown in Figure 2, between described left half-coupling 5 and right half-coupling 4, be provided with described connection set, described connection set comprises described pad 6, safety pin 7, lining 8, clamp 9, hexagon nut 10, lock washer with tongue at outside 11, described lining 8 is set in the first dress hole of left half-coupling 5 and right half-coupling 4, and described safety pin 7 is successively through pad 6, lining 8, clamp 9, lock washer with tongue at outside 11 and hexagon nut 10;
Described gear shaft 2 is coaxially arranged with drive sprocket axle 12, and described gear shaft 2 is connected with housing 3, and described housing 3 is connected with right half-coupling 4, and described left half-coupling 4 is connected with drive sprocket axle 12.
In the present embodiment, the smallest cross-sectional size of described safety pin 7, and the quantity of described safety pin 7, lining 8, clamp 9, hexagon nut 10 and lock washer with tongue at outside 11 all can be adjusted according to the minimum loading of driving mechanism and motor, therefore by adjusting the smallest cross-sectional size of safety pin, the quantity of safety pin, lining, clamp, hexagon nut, lock washer with tongue at outside assembly, the i.e. value of capable of regulating overloading load.The present invention also can be by quantitatively calculating the size of adjusting safety pin, solved the design challenges of overload protection arrangement in existing high-power transmission mechanism.In existing housing, also have the regulating mechanism of other functions, irrelevant with device of the present invention, as only considered device of the present invention, shell construction axial dimension can also be adjusted.
In the present embodiment, pad 6 is positioned at the outside of safety pin 7, and described pad 6 is blocked by the shaft shoulder of safety pin 7, and described clamp 9 is positioned at the tool withdrawal groove place of safety pin 7 after being installed on safety pin 7.Clamp 9 blocks right half-coupling 4 with left half-coupling 5, by lock washer with tongue at outside 11, hexagon nut 10, adjusted and tightened.
In the present embodiment, described gear shaft 2 is with housing 3 by spline joint, and described housing 3 is bolted with right half-coupling 4, and described left half-coupling 4 passes through spline joint with drive sprocket axle 12.
In said apparatus; by gear shaft, housing, right half-coupling, left half-coupling, drive sprocket axle, realize power and reflux; motor power is got back to drive sprocket axle place by gear shaft; when driving wheel end load is excessive; with the fracture of safety pin, cut off the transmission of power between drive sprocket axle and motor, thereby effectively protect motor and driving mechanism.
As can be seen from the above embodiments, the present invention, by the overload protection arrangement of this driving mechanism of application, can effectively protect driving mechanism gearbox gear and motor, and then protect the transmission system of whole testing installation.Meanwhile, this overload protection arrangement axial dimension is little, has reduced testing installation and has taken up room; Transmitting torque is large, and its power reflux type is conducive to the modular design of drive sprocket axle in pilot system; And overload protection arrangement is outside at gearbox, to be convenient to change, the space that does not affect whole system is arranged, is also convenient to find system overload.The present invention can be applicable in the test stand of vehicle behavioral system tracked propulsor, the overload protection for gearbox to the driving mechanism of drive sprocket axle output shaft.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (4)
1. the overload protection arrangement of a driving mechanism, it is characterized in that, comprising: hollow gear shaft (2), housing (3), right half-coupling (4), left half-coupling (5), pad (6), safety pin (7), lining (8), clamp (9), hexagon nut (10), lock washer with tongue at outside (11) and drive sprocket axle (12); Described gear shaft (2) is motor power input end, and described drive sprocket axle (12) is motor power output terminal;
Between described left half-coupling (5) and right half-coupling (4), be provided with connection set, described connection set comprises described pad (6), safety pin (7), lining (8), clamp (9), hexagon nut (10), lock washer with tongue at outside (11), described lining (8) is set in the first dress hole of left half-coupling (5) and right half-coupling (4), and described safety pin (7) is successively through pad (6), lining (8), clamp (9), lock washer with tongue at outside (11) and hexagon nut (10);
Described gear shaft (2) is coaxially arranged with drive sprocket axle (12), described gear shaft (2) is connected with housing (3), described housing (3) is connected with right half-coupling (4), and described left half-coupling (4) is connected with drive sprocket axle (12).
2. the overload protection arrangement of driving mechanism as claimed in claim 1; it is characterized in that; the smallest cross-sectional size of described safety pin (7), and the quantity of described safety pin (7), lining (8), clamp (9), hexagon nut (10) and lock washer with tongue at outside (11) all can be adjusted according to the minimum loading of driving mechanism and motor.
3. the overload protection arrangement of driving mechanism as claimed in claim 1; it is characterized in that; pad (6) is positioned at the outside of safety pin (7), and described pad (6) is blocked by the shaft shoulder of safety pin (7), and described clamp (9) is positioned at the tool withdrawal groove place of safety pin (7).
4. the overload protection arrangement of the driving mechanism as described in claim 1 or 2 or 3; it is characterized in that; described gear shaft (2) passes through spline joint with housing (3); described housing (3) is bolted with right half-coupling (4), and described left half-coupling (4) passes through spline joint with drive sprocket axle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274046.2A CN104033503A (en) | 2014-06-19 | 2014-06-19 | Transmission mechanism overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274046.2A CN104033503A (en) | 2014-06-19 | 2014-06-19 | Transmission mechanism overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104033503A true CN104033503A (en) | 2014-09-10 |
Family
ID=51464423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410274046.2A Pending CN104033503A (en) | 2014-06-19 | 2014-06-19 | Transmission mechanism overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033503A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464956A (en) * | 2014-09-27 | 2016-04-06 | 曼卡车和巴士股份公司 | Connection of frictional cooperation and method for increasing torque and/or transverse force |
| CN107795655A (en) * | 2017-11-23 | 2018-03-13 | 徐工集团工程机械有限公司 | Rotor overload protection device, actuating unit and cold regenerative machine |
| CN107834768A (en) * | 2017-11-17 | 2018-03-23 | 中车株洲电机有限公司 | Motor, motor gear box assembly, inter-city train |
| CN109691302A (en) * | 2017-10-23 | 2019-04-30 | 雷沃重工股份有限公司 | Cluster conveying device and corn picker |
| CN112623924A (en) * | 2020-12-23 | 2021-04-09 | 湖南三一港口设备有限公司 | Anti-breaking telescopic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5651629A (en) * | 1996-04-17 | 1997-07-29 | Wall; Harry | Coupling device for drive shafts |
| US20030017909A1 (en) * | 2001-07-23 | 2003-01-23 | Masakazu Murase | Power transmission device |
| CN202402507U (en) * | 2011-11-19 | 2012-08-29 | 宜宾伊力科技股份有限公司 | Gear transmission device with protecting structure |
| CN203335666U (en) * | 2013-07-02 | 2013-12-11 | 武汉钢铁(集团)公司 | Universal joint pin type universal coupling with overload protection function |
-
2014
- 2014-06-19 CN CN201410274046.2A patent/CN104033503A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5651629A (en) * | 1996-04-17 | 1997-07-29 | Wall; Harry | Coupling device for drive shafts |
| US20030017909A1 (en) * | 2001-07-23 | 2003-01-23 | Masakazu Murase | Power transmission device |
| CN202402507U (en) * | 2011-11-19 | 2012-08-29 | 宜宾伊力科技股份有限公司 | Gear transmission device with protecting structure |
| CN203335666U (en) * | 2013-07-02 | 2013-12-11 | 武汉钢铁(集团)公司 | Universal joint pin type universal coupling with overload protection function |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464956A (en) * | 2014-09-27 | 2016-04-06 | 曼卡车和巴士股份公司 | Connection of frictional cooperation and method for increasing torque and/or transverse force |
| CN105464956B (en) * | 2014-09-27 | 2019-11-05 | 曼卡车和巴士股份公司 | The connection of frictional fit and method for improving torque and/or cross force |
| CN109691302A (en) * | 2017-10-23 | 2019-04-30 | 雷沃重工股份有限公司 | Cluster conveying device and corn picker |
| CN107834768A (en) * | 2017-11-17 | 2018-03-23 | 中车株洲电机有限公司 | Motor, motor gear box assembly, inter-city train |
| CN107795655A (en) * | 2017-11-23 | 2018-03-13 | 徐工集团工程机械有限公司 | Rotor overload protection device, actuating unit and cold regenerative machine |
| CN107795655B (en) * | 2017-11-23 | 2023-12-08 | 江苏徐工工程机械研究院有限公司 | Rotor overload protection device, power transmission device and cold regenerator |
| CN112623924A (en) * | 2020-12-23 | 2021-04-09 | 湖南三一港口设备有限公司 | Anti-breaking telescopic device |
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Application publication date: 20140910 |