CN203102665U - Turnover frame for automobile engine for teaching - Google Patents
Turnover frame for automobile engine for teaching Download PDFInfo
- Publication number
- CN203102665U CN203102665U CN 201220723676 CN201220723676U CN203102665U CN 203102665 U CN203102665 U CN 203102665U CN 201220723676 CN201220723676 CN 201220723676 CN 201220723676 U CN201220723676 U CN 201220723676U CN 203102665 U CN203102665 U CN 203102665U
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- Prior art keywords
- teaching
- support
- motor car
- car engine
- coupling arrangement
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Abstract
The utility model discloses a turnover frame for an automobile engine for teaching. The turnover frame for the automobile engine for teaching comprises a support, a transmission device and a connection device, wherein the automobile engine for teaching is arranged between the head frame and the tail frame of the support via a connection device; the transmission device is arranged on the head frame of the support, and used for outputting a power to the rotary shaft of the connection device and driving the automobile engine for teaching to rotate; the transmission device comprises a hand wheel, an eccentric shaft with friction damping, an outer planetary gear, an inner sun gear and a housing cover; the hand wheel is fixedly connected to the eccentric shaft, and the eccentric circle part of the eccentric shaft is connected with the central hole of the outer planetary gear by means of slide fit; the outer planetary gear is engaged with the inner sun gear and low in tooth number than the inner sun gear; an output sleeve is arranged at the outer side of the inner sun gear; and when the eccentric shaft is driven to rotate by the hand wheel, the outer planetary gear performs a translational motion and drives the engaged inner sun gear to perform speed-reducing rotation towards a rotation direction which is as the same as the rotation direction of the hand wheel. The turnover frame is convenient to assemble, easy to install and detach the automobile engine, simple to perform a turnover operation, and in accord with operation habits.
Description
Technical field
The utility model relates to a kind of teaching motor car engine rollover stand, the motor car engine of fixing and overturn when being mainly used in teaching demonstration, dismounting real training.
Background technology
At present, teaching mainly contains two kinds of versions with the motor car engine rollover stand, a kind of is arm of force cantilever style rollover stand, motor car engine is connected on the rollover stand by coupling shaft, drive the coupling shaft rotation at the terminal rotation handgrip of installing of coupling shaft, to realize the upset of motor car engine, and by a stop pin along the radially insertion of coupling shaft or extract, to show that motor car engine has extreme position the several of space, though this rollover stand structure is simple, but when operation in addition the someone help insert-pull pin, the locking space position of motor car engine is limited, and the motor car engine of installation can not be big, and operation is heavy, dumb, security is low; Another kind is a worm and wormwheel type rollover stand, it comes the driving automobile engine rotation by a rotation hand wheel and over-type worm gear structure, for adapting to heavier big engine, set up auxiliary stand, though people of this rollover stand energy realizes the upset of motor car engine, but the teacher is when operation upset motor car engine, seized student's vantage point, the teacher can not take student on every side into account comprehensively, the reverses direction of handwheel sense of rotation and motor car engine disrespects the custom operating principle, and the rotation center of the auxiliary stand of this rollover stand is unsteady adjustable, the rotation center of auxiliary stand is found difficulty accurately, disalignment phenomenon before and after being prone to, relatively require great effort when making rotation, also easy damage car engine or rollover stand, and because the bindiny mechanism of motor car engine and rollover stand is that weldering is dead, motor car engine must lift on the rollover stand when installing, Installation and Debugging are wasted time and energy, auxiliary stand is firmly pushed down the food tray of motor car engine below simultaneously, cause when picking and placeing food tray and must remove auxiliary stand earlier, cause food tray to pick and place inconvenience; In addition, the input and output shaft rotation direction of the cycloidal-pin wheel speed reduction unit (being planetary speed reducer with small tooth number difference) that provides from " mechanical design handbook " and enterprise's sample all is opposite, does not meet operating habit, can not directly use.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of teaching motor car engine rollover stand, and this rollover stand self is easy to assembly, and the installing/dismounting motor car engine is easy, and turning operation is simple and easy, and the match operation custom.
The utility model for the technical scheme that solves its technical matters and adopt is: a kind of teaching motor car engine rollover stand, comprise support and be located on this support and the gearing of coaxial line and coupling arrangement, teaching is located between first of support and the tailstock by coupling arrangement with motor car engine, gearing is located at first of support and is gone up and outputting power is given the rotating shaft of coupling arrangement and driven teaching and rotates with motor car engine, described gearing comprises handwheel, the excentric shaft of band frictional damping, planetary external gear, sun annular wheel and casing cover, described handwheel is fixed on the excentric shaft, the off-centre operation part of this excentric shaft and the center pit sliding connection of described planetary external gear; Described planetary external gear and the engagement of sun annular wheel, and the number of teeth of the gear ratio sun annular wheel of this planetary external gear is few; The described sun outer rotor outside is the output cover; A plurality of circular holes are arranged on the spoke of described planetary external gear, are provided with a round pin that is connected with described casing cover in this each circular hole, this round pin all the time with planetary external gear on eccentric contact of circular hole; When described handwheel drove the excentric shaft rotation, described planetary external gear was made translational motion, and driving is rotated to the sense of rotation deceleration identical with handwheel with the sun annular wheel of its engagement.
As further improvement of the utility model, few 1 or 2 or 3 of the number of teeth of the gear ratio sun annular wheel of described planetary external gear.
As further improvement of the utility model, the gear teeth of described planetary external gear and sun annular wheel are the cycloidal-pin wheel gear tooth or the involute urve X-gear gear teeth.
As further improvement of the utility model, described coupling arrangement also comprises terminal pad, front end is adjustable connection support and the adjustable support that is connected in rear end, rotating shaft the inner of described coupling arrangement is fixedly arranged in the output cover of described sun annular wheel, the axle head of outer end is connected with described terminal pad with the shaft shoulder, described front end is adjustable, and the connection support also is connected with this terminal pad, and described rear end is adjustable, and the connection support is installed on the tailstock of described support.
As further improvement of the utility model, the structure that the rotating shaft outer end of described coupling arrangement is fixedly arranged on the side of described terminal pad is: a shaft shoulder is established in the outer end of the rotating shaft of described coupling arrangement, the oval groove of uniform several direction unanimities on the same circumference of this shaft shoulder, this oval groove comprises head macropore and the afterbody sulculus that is connected to form one, and the outer end spindle nose end of described coupling arrangement is taper or sphere, and bolt on the described terminal pad and nut can pass through in the head macropore of described oval groove.
As further improvement of the utility model, the axle center of the rotation center of the tailstock of described support and the rotating shaft of described coupling arrangement is on same horizontal axis.
As further improvement of the utility model, on described support downside, be provided with travelling wheel, the bottom of this support is positioned at teaching with being provided with food tray under the motor car engine.
As further improvement of the utility model, between the casing cover of described gearing and described excentric shaft, be provided with flexure strip successively, decide friction disc, movable friction plate and decide friction disc, described movable friction plate and described excentric shaft are connected, described flexure strip and decide friction disc and casing cover is connected, and described flexure strip is compressed by nut cap, and by screw the position of nut cap is pinned.
The beneficial effects of the utility model are: by adopting the homodromal planetary speed reducer with small tooth number difference of input and output shaft and adopting the terminal pad that makes things convenient for the mounting or dismounting automobile engine, not only dwindled the drive mechanism size, improved transmission efficiency, and be convenient to install and debugging, make the teacher and operate the upset motor car engine in preferable position explanation, easily the angle of Control of Automobile engine more helps teaching, owing to increased frictional damping in gearing, phenomenon can not appear reversing simultaneously.
Description of drawings
Fig. 1 is the utility model cross-sectional view;
Fig. 2 is a gearing section structure for amplifying synoptic diagram described in the utility model;
Fig. 3 is a coupling arrangement section structure for amplifying synoptic diagram described in the utility model;
Fig. 4 is the local structure for amplifying synoptic diagram of the shaft shoulder of the rotating shaft of coupling arrangement described in the utility model.
In conjunction with the accompanying drawings, make the following instructions:
100---teaching 1 of automobile engine---support
11---first 12---tailstocks
2---gearing 21---handwheel
22---excentric shaft
23---planetary external gear 231---circular hole
24---sun annular wheel 25---casing cover
26---round pin 27---nut cap
271---screw 28---flexure strip
291---deciding friction disc 292---movable friction plate
3---coupling arrangement 31---rotating shaft
311---oval groove 32---terminal pad
33---front end is adjustable connection support
34---the rear end is adjustable connection support
4---travelling wheel 5---food tray
Embodiment
In conjunction with the accompanying drawings; the utility model is elaborated; but protection domain of the present utility model is not limited to following embodiment, and promptly the simple equivalent of being done with the utility model claim and description in every case changes and modifies, and all still belongs within the utility model patent covering scope.
As Fig. 1,2, shown in 3, a kind of teaching motor car engine rollover stand, comprise support 1 and be located on this support and the gearing 2 and the coupling arrangement 3 of coaxial line, teaching is located between first 11 of support and the tailstock 12 by coupling arrangement with motor car engine, gearing is located at first of support and is gone up and outputting power is given the rotating shaft 31 of coupling arrangement and driven teaching with 1 of automobile engine 00 rotation, described gearing comprises handwheel 1, the excentric shaft 22 of band frictional damping, planetary external gear 23, sun annular wheel 24 and casing cover 25, described handwheel 21 is fixed on the excentric shaft, the off-centre operation part of this excentric shaft and the center pit sliding connection of described planetary external gear; Described planetary external gear and the engagement of sun annular wheel, and the number of teeth of the gear ratio sun annular wheel of this planetary external gear is few; The described sun outer rotor outside is the output cover; A plurality of circular holes 231 are arranged on the spoke of described planetary external gear, are provided with a round pin 26 that is connected with described casing cover in this each circular hole, this round pin all the time with planetary external gear on eccentric contact of circular hole; When described handwheel drove the excentric shaft rotation, described planetary external gear was made translational motion, and driving is rotated to the sense of rotation deceleration identical with handwheel with the sun annular wheel of its engagement.
Preferably, the number of teeth of the gear ratio sun annular wheel of described planetary external gear is few 1 or 2 or 3.
The special gear teeth that do not interfere when preferably, the gear teeth of described planetary external gear and sun annular wheel are the few tooth difference engagement of cycloidal-pin wheel gear tooth or the involute urve X-gear gear teeth or other.
Preferably, described coupling arrangement also comprises terminal pad 32, front end is adjustable connection support 33 and the adjustable support 34 that is connected in rear end, rotating shaft 31 the inners of described coupling arrangement are fixedly arranged in the output cover of described sun annular wheel, the axle head of outer end is connected with described terminal pad with the shaft shoulder, described front end is adjustable, and the connection support also is connected with this terminal pad, and described rear end is adjustable, and the connection support is installed on the tailstock 12 of described support.The installation of the rear end is adjustable connection support can be shared the part weight of motor car engine.
Preferably, the structure that the rotating shaft outer end of described coupling arrangement is fixedly arranged on the side of described terminal pad is: a shaft shoulder is established in the outer end of the rotating shaft of described coupling arrangement, the oval groove 311 of uniform several direction unanimities on the same circumference of this shaft shoulder, as shown in Figure 4, this oval groove comprises head macropore and the afterbody sulculus that is connected to form one, and the outer end spindle nose end of described coupling arrangement is taper or spherical can be conveniently the central bore of terminal pad the importing, and bolt on the described terminal pad and nut can pass through in the head macropore of described oval groove.
Preferably, the axle center of the rotating shaft of the rotation center of the tailstock of described support and described coupling arrangement is on same horizontal axis.
Preferably, on described support downside, be provided with travelling wheel 4, the bottom of this support is positioned at teaching with being provided with food tray 5 under the motor car engine, and the free height that support is liftoff can put in the supporting leg that hydraulic pressure single armed commonly used hangs, and the convenient hydraulic pressure single armed that adopts hangs installation and removal teaching motor car engine.
Preferably, between the casing cover 25 of described gearing and described excentric shaft, be provided with flexure strip 28 successively, decide friction disc 291, movable friction plate 292 and decide friction disc 291, described movable friction plate and described excentric shaft are connected, described flexure strip and decide friction disc and casing cover is connected, and described flexure strip is compressed by nut cap 27, and by screw 271 position of nut cap is pinned.Like this, generation frictional damping in the time of can making the excentric shaft rotation, the too unexpected reverse of unbalance loading when using motor car engine because of installation prevents to impart knowledge to students.
Claims (8)
1. teaching motor car engine rollover stand, comprise support (1) and be located on this support and gearing of coaxial line (2) and coupling arrangement (3), teaching is located between first (11) and tailstock (12) of support with motor car engine by coupling arrangement, gearing is located at first of support and is gone up and outputting power is given the rotating shaft (31) of coupling arrangement and driven teaching with motor car engine (100) rotation, it is characterized in that: described gearing comprises handwheel (21), the excentric shaft (22) of band frictional damping, planetary external gear (23), sun annular wheel (24) and casing cover (25), described handwheel (21) is fixed on the excentric shaft, the off-centre operation part of this excentric shaft and the center pit sliding connection of described planetary external gear; Described planetary external gear and the engagement of sun annular wheel, and the number of teeth of the gear ratio sun annular wheel of this planetary external gear is few; The described sun outer rotor outside is the output cover; A plurality of circular holes (231) are arranged on the spoke of described planetary external gear, are provided with a round pin that is connected with described casing cover (26) in this each circular hole, this round pin all the time with planetary external gear on eccentric contact of circular hole; When described handwheel drove the excentric shaft rotation, described planetary external gear was made translational motion, and driving is rotated to the sense of rotation deceleration identical with handwheel with the sun annular wheel of its engagement.
2. teaching motor car engine rollover stand according to claim 1 is characterized in that: few 1 or 2 or 3 of the number of teeth of the gear ratio sun annular wheel of described planetary external gear.
3. teaching motor car engine rollover stand according to claim 1 and 2 is characterized in that: the gear teeth of described planetary external gear and sun annular wheel are the cycloidal-pin wheel gear tooth or the involute urve X-gear gear teeth.
4. teaching motor car engine rollover stand according to claim 1 and 2, it is characterized in that: described coupling arrangement also comprises terminal pad (32), front end is adjustable connection support (33) and the adjustable support (34) that is connected in rear end, the rotating shaft of described coupling arrangement (31) the inner is fixedly arranged in the output cover of described sun annular wheel, the axle head of outer end is connected with described terminal pad with the shaft shoulder, described front end is adjustable, and the connection support also is connected with this terminal pad, and described rear end is adjustable, and the connection support is installed on the tailstock (12) of described support.
5. teaching motor car engine rollover stand according to claim 4, it is characterized in that: the structure that the rotating shaft outer end of described coupling arrangement is fixedly arranged on the side of described terminal pad is: a shaft shoulder is established in the outer end of the rotating shaft of described coupling arrangement, the oval groove (311) of uniform several direction unanimities on the same circumference of this shaft shoulder, this oval groove comprises head macropore and the afterbody sulculus that is connected to form one, and the outer end spindle nose end of described coupling arrangement is taper or sphere, and bolt on the described terminal pad and nut can pass through in the head macropore of described oval groove.
6. teaching motor car engine rollover stand according to claim 4 is characterized in that: the axle center of the rotation center of the tailstock of described support and the rotating shaft of described coupling arrangement is on same horizontal axis.
7. teaching motor car engine rollover stand according to claim 1 and 2 is characterized in that: be provided with travelling wheel (4) on described support downside, the bottom of this support is positioned at teaching with being provided with food tray (5) under the motor car engine.
8. teaching motor car engine rollover stand according to claim 1 and 2, it is characterized in that: between the casing cover (25) of described gearing and described excentric shaft, be provided with flexure strip (28) successively, decide friction disc (291), movable friction plate (292) and decide friction disc (291), described movable friction plate and described excentric shaft are connected, described flexure strip and decide friction disc and casing cover is connected, and described flexure strip is compressed by nut cap (27), and by screw (271) position of nut cap is pinned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723676 CN203102665U (en) | 2012-12-25 | 2012-12-25 | Turnover frame for automobile engine for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723676 CN203102665U (en) | 2012-12-25 | 2012-12-25 | Turnover frame for automobile engine for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203102665U true CN203102665U (en) | 2013-07-31 |
Family
ID=48854051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220723676 Withdrawn - After Issue CN203102665U (en) | 2012-12-25 | 2012-12-25 | Turnover frame for automobile engine for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203102665U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021224A (en) * | 2012-12-25 | 2013-04-03 | 昆山登云科技职业学院 | Turnover stand for teaching-used automobile engine |
| CN103824508A (en) * | 2014-03-24 | 2014-05-28 | 张志刚 | Split maintenance training device for engine |
| CN104400767A (en) * | 2014-10-27 | 2015-03-11 | 西安航空动力股份有限公司 | Device for axially rotating engine |
-
2012
- 2012-12-25 CN CN 201220723676 patent/CN203102665U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021224A (en) * | 2012-12-25 | 2013-04-03 | 昆山登云科技职业学院 | Turnover stand for teaching-used automobile engine |
| CN103021224B (en) * | 2012-12-25 | 2015-07-01 | 昆山登云科技职业学院 | Turnover stand for teaching-used automobile engine |
| CN103824508A (en) * | 2014-03-24 | 2014-05-28 | 张志刚 | Split maintenance training device for engine |
| CN104400767A (en) * | 2014-10-27 | 2015-03-11 | 西安航空动力股份有限公司 | Device for axially rotating engine |
| CN104400767B (en) * | 2014-10-27 | 2016-04-06 | 西安航空动力股份有限公司 | A kind of for making engine along the device of its axial-rotation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150701 |
|
| RGAV | Abandon patent right to avoid regrant |