CN212963245U - Centering inspection device for engine rack - Google Patents
Centering inspection device for engine rack Download PDFInfo
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- CN212963245U CN212963245U CN202022268839.7U CN202022268839U CN212963245U CN 212963245 U CN212963245 U CN 212963245U CN 202022268839 U CN202022268839 U CN 202022268839U CN 212963245 U CN212963245 U CN 212963245U
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Abstract
The utility model relates to the technical field of engine test centering, and discloses an engine bench centering inspection device; it includes: the first end of the connecting sleeve is provided with a first connecting flange which is fixed on the dynamometer; the first end of the spline shaft is inserted into the second end of the connecting sleeve, the spline shaft and the connecting sleeve are coaxially arranged and are rotationally connected with the connecting sleeve, and the second end of the spline shaft is provided with an external spline; the first end of the spline sleeve is provided with an internal spline matched with the external spline, the first end of the spline sleeve is in splined connection with the second end of the spline shaft, the second end of the spline sleeve is provided with a first concave spigot, and the first concave spigot is matched with the convex spigot of the engine connecting disc. The spline sleeve is moved to complete centering inspection, and the operation is simple; because the connection clearance of the spline is smaller, the connection precision of the spline sleeve and the spline shaft can be ensured to be higher, the coaxiality of the spline sleeve and the spline shaft is ensured, and the precision of centering inspection is further ensured.
Description
Technical Field
The utility model relates to an engine test centering technical field especially relates to an engine rack centering inspection device.
Background
The engine may shift slightly during the test due to the effects of vibration, requiring a centering check of the engine after a period of testing. The existing engine centering device comprises a centering disc, wherein the centering disc is connected with a transmission output shaft, the centering disc comprises a flange plate and a sleeve part which coaxially extends outwards from the center of the flange plate, the centering disc is sleeved on the transmission output shaft through the sleeve part, and the inner peripheral wall of the sleeve part is connected with the outer peripheral wall of the transmission output shaft through splines, so that the requirement on the coaxiality of the centering disc and the transmission output shaft is met, and the centering precision of the engine centering device is improved. The engine centering device further comprises a laser centering instrument, the laser centering instrument comprises a controller, a laser transmitter and a laser receiver, the laser transmitter is arranged on one of the centering disc and the dynamometer output shaft, the laser receiver is arranged on the other of the centering disc and the dynamometer output shaft, and the controller is respectively communicated with the laser transmitter and the laser receiver. The laser centering instrument is used for centering, and the centering mode is complex in operation and low in centering efficiency.
Therefore, a need exists for an engine mount centering inspection device to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an engine rack centering inspection device, which can finish centering inspection only by moving a spline sleeve and has simpler operation; moreover, the number of parts is small, and the structure is simple; moreover, because the connection clearance of the spline is small, the connection precision of the spline sleeve and the spline shaft can be ensured to be high, the coaxiality of the spline sleeve and the spline shaft is ensured, and the precision of centering inspection is further ensured.
To achieve the purpose, the utility model adopts the following technical proposal:
provided is an engine mount centering inspection device including:
the first end of the connecting sleeve is provided with a first connecting flange, and the first connecting flange is fixed on the dynamometer;
a first end of the spline shaft is inserted into a second end of the connecting sleeve, the spline shaft and the connecting sleeve are coaxially arranged and are rotationally connected with the connecting sleeve, and an external spline is arranged at the second end of the spline shaft;
spline sleeve, its first end be provided with external splines assorted internal spline, spline sleeve's first end with the second end splined connection of integral key shaft, spline sleeve's second end is provided with first spill tang, first spill tang sets up with the convex tang phase-match of engine connection pad.
As a preferred technical scheme of the engine rack centering inspection device, a first end of the connecting sleeve is provided with a second concave spigot, and the second concave spigot is matched with a convex spigot of a connecting disc of the dynamometer.
As a preferred technical scheme of an engine rack centering inspection device, the centering inspection device further comprises a bearing, wherein an inner ring of the bearing sleeve is arranged at the first end of the spline shaft, and the connecting sleeve is sleeved on an outer ring of the bearing.
As a preferred technical scheme of the engine rack centering inspection device, the number of the bearings is two, a spacer bush is arranged between the two bearings, and two ends of the spacer bush are respectively abutted to inner rings of the two bearings.
As a preferable technical scheme of the engine bench centering inspection device, the bearing is a ball bearing.
As a preferred technical scheme of the engine rack centering inspection device, a first stopping protrusion is arranged in the connecting sleeve, and an outer ring of the bearing close to the first end of the spline shaft abuts against the first stopping protrusion.
As a preferred technical scheme of the engine rack centering inspection device, a second stopping bulge is arranged on the spline shaft, and an inner ring of the bearing far away from the first end of the spline shaft abuts against the second stopping bulge.
As a preferable technical scheme of the engine rack centering inspection device, the second end of the spline sleeve is provided with a second connecting flange.
As an optimal technical scheme of the engine rack centering inspection device, the connecting sleeve, the spline shaft and the spline sleeve are all made of aluminum alloy.
As a preferable technical scheme of the engine stand centering inspection device, the number of the external splines and the number of the internal splines are at least three.
The utility model has the advantages that:
the connecting sleeve is fixed on the dynamometer, the spline sleeve is moved to enable the first concave spigot to be buckled on the convex spigot of the engine connecting disc, if the first concave spigot of the spline sleeve can be smoothly buckled on the convex spigot of the engine connecting disc, no problem exists in centering, and centering adjustment is not needed; if the first concave spigot of the spline sleeve cannot be smoothly or cannot be buckled on the convex spigot of the engine connecting plate, the engine connecting plate and the dynamometer connecting plate are not on the same axis, and centering adjustment is needed. The centering inspection mode only needs to move the spline sleeve, and the operation is simple; moreover, the number of parts is small, and the structure is simple; moreover, because the connection clearance of the spline is small, the connection precision of the spline sleeve and the spline shaft can be ensured to be high, the coaxiality of the spline sleeve and the spline shaft is ensured, and the precision of centering inspection is further ensured.
Drawings
Fig. 1 is a cross-sectional view of an engine mount centering inspection device provided by the present invention;
fig. 2 is a cross-sectional view of a coupling sleeve provided by the present invention;
FIG. 3 is a cross-sectional view of the spline shaft provided by the present invention;
fig. 4 is a cross-sectional view of a spline sleeve provided by the present invention.
In the figure: 1. a connecting sleeve; 11. a first connecting flange; 12. a second female seam allowance; 13. a first stopper projection; 2. a spline shaft; 21. an external spline; 22. a second stopper projection; 3. a spline sleeve; 31. an internal spline; 32. a first female seam allowance; 33. a second connecting flange; 4. a bearing; 5. and (4) a spacer bush.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the present embodiment discloses an engine mount centering inspection device including a connecting sleeve 1, a spline shaft 2, and a spline sleeve 3.
The first end of the connecting sleeve 1 is provided with a first connecting flange 11, and the first connecting flange 11 is fixed on the dynamometer, and is specifically fixed on a dynamometer connecting disc through a bolt. The first end of integral key shaft 2 is inserted in the second end of connecting sleeve 1, and integral key shaft 2 and the coaxial setting of connecting sleeve 1, and rotate with connecting sleeve 1 and be connected, and the second end of integral key shaft 2 is provided with external splines 21. The first end of the spline sleeve 3 is provided with internal splines 31 matching the external splines 21, wherein the number of the external splines 21 and the internal splines 31 is at least three. A first end of the spline sleeve 3 is splined to a second end of the spline shaft 2. The second end of the spline sleeve 3 is provided with a first concave spigot 32, and the first concave spigot 32 is matched with a convex spigot of an engine connecting disc.
The connecting sleeve 1 is fixed on a dynamometer, the spline sleeve 3 is moved to enable the first concave spigot 32 to be buckled on a convex spigot of an engine connecting disc, if the first concave spigot 32 of the spline sleeve 3 can be smoothly buckled on the convex spigot of the engine connecting disc, the centering is indicated to be free from problems, and centering adjustment is not needed; if the first concave spigot of the spline sleeve 3 cannot be smoothly or cannot be buckled on the convex spigot of the engine connecting disc, the engine connecting disc and the dynamometer connecting disc are not on the same axis, and centering adjustment is needed. The centering inspection mode only needs to move the spline sleeve 3, and the operation is simple; moreover, the number of parts is small, and the structure is simple; moreover, because the connection clearance of the spline is small, the connection precision of the spline sleeve 3 and the spline shaft 2 can be ensured to be high, the coaxiality of the spline sleeve and the spline shaft is ensured, and the precision of centering inspection is further ensured.
Preferably, the first end of the connecting sleeve 1 is provided with a second female spigot 12, and the second female spigot 12 is matched with the male spigot of the dynamometer connecting disc. The second concave spigot 12 is matched with the convex spigot of the dynamometer connecting disc to position the connecting sleeve 1, so that the installation precision of the connecting sleeve 1 is guaranteed, and the precision of centering inspection is further guaranteed.
Optionally, the engine rack centering inspection device further includes a bearing 4 and a spacer 5, an inner ring of the bearing 4 is sleeved on the first end of the spline shaft 2, and the connecting sleeve 1 is sleeved on an outer ring of the bearing 4, that is, the spline shaft 2 and the connecting sleeve 1 are rotatably connected through the bearing 4. Preferably, in the present embodiment, the number of the bearings 4 is two, the spacer 5 is provided between the two bearings 4, and both ends of the spacer 5 are respectively abutted against the inner rings of the two bearings 4. The spacer 5 can prevent the two bearings 4 from being dislocated, and the stability of the bearings 4 is ensured. Wherein the bearing 4 is a ball bearing. A first stopping bulge 13 is arranged in the connecting sleeve 1, and the outer ring of the bearing 4 close to the first end of the spline shaft 2 abuts against the first stopping bulge 13. The spline shaft 2 is provided with a second stopping bulge 22, and the inner ring of the bearing 4 far away from the first end of the spline shaft 2 abuts against the second stopping bulge 22. Spacer 5, first backstop arch 13 and second backstop are protruding 22 to cooperate and carry on spacingly to two bearings 4, prevent that bearing 4 from scurrying on integral key shaft 2, guarantee integral key shaft 2's stability.
The second end of the spline sleeve 3 is provided with a second attachment flange 33 which can be fixed to the engine attachment plate to facilitate centering adjustment of the engine attachment plate. The connecting sleeve 1, the spline shaft 2 and the spline sleeve 3 are made of aluminum alloy, and the aluminum alloy is light in weight, so that the centering inspection device is light and convenient to install and use.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An engine mount centering inspection device, comprising:
the first end of the connecting sleeve (1) is provided with a first connecting flange (11), and the first connecting flange (11) is fixed on the dynamometer;
the first end of the spline shaft (2) is inserted into the second end of the connecting sleeve (1), the spline shaft (2) is coaxially arranged with the connecting sleeve (1) and is rotationally connected with the connecting sleeve (1), and the second end of the spline shaft (2) is provided with an external spline (21);
spline sleeve (3), its first end be provided with external splines (21) assorted internal spline (31), the first end of spline sleeve (3) with the second end splined connection of integral key shaft (2), the second end of spline sleeve (3) is provided with first spill tang (32), first spill tang (32) set up with the convex tang phase-match of engine connection pad.
2. The engine mount centering inspection device of claim 1, characterized in that the first end of the adapter sleeve (1) is provided with a second female spigot (12), the second female spigot (12) being arranged to mate with a male spigot of a dynamometer interface pad.
3. The engine bench centering inspection device of claim 1, characterized by further comprising a bearing (4), wherein an inner ring of the bearing (4) is sleeved on the first end of the spline shaft (2), and the connecting sleeve (1) is sleeved on an outer ring of the bearing (4).
4. The engine bench centering inspection device according to claim 3, characterized in that the number of the bearings (4) is two, a spacer (5) is provided between the two bearings (4), and both ends of the spacer (5) are respectively abutted against inner rings of the two bearings (4).
5. The engine stand centering inspection device according to claim 3, characterized in that the bearing (4) is a ball bearing.
6. The engine stand centering inspection device according to claim 4, characterized in that a first stop protrusion (13) is provided in the connection sleeve (1), and an outer ring of the bearing (4) near the first end of the spline shaft (2) abuts against the first stop protrusion (13).
7. Engine stand centering inspection device according to claim 4, characterized in that a second stop protrusion (22) is provided on the spline shaft (2), the inner ring of the bearing (4) remote from the first end of the spline shaft (2) abutting against the second stop protrusion (22).
8. Engine stand centering inspection device according to claim 1, characterized in that the second end of the spline sleeve (3) is provided with a second connection flange (33).
9. The engine mount centering inspection device according to claim 1, characterized in that the material of the connection sleeve (1), the spline shaft (2), and the spline sleeve (3) is an aluminum alloy.
10. The engine stand centering inspection device according to claim 1, characterized in that the number of the male splines (21) and the female splines (31) is at least three each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022268839.7U CN212963245U (en) | 2020-10-13 | 2020-10-13 | Centering inspection device for engine rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022268839.7U CN212963245U (en) | 2020-10-13 | 2020-10-13 | Centering inspection device for engine rack |
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| Publication Number | Publication Date |
|---|---|
| CN212963245U true CN212963245U (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022268839.7U Active CN212963245U (en) | 2020-10-13 | 2020-10-13 | Centering inspection device for engine rack |
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| CN (1) | CN212963245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088384A (en) * | 2021-12-02 | 2022-02-25 | 重庆福瑞斯自动化设备股份有限公司 | Parking mechanism check out test set |
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2020
- 2020-10-13 CN CN202022268839.7U patent/CN212963245U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088384A (en) * | 2021-12-02 | 2022-02-25 | 重庆福瑞斯自动化设备股份有限公司 | Parking mechanism check out test set |
| CN114088384B (en) * | 2021-12-02 | 2022-12-27 | 重庆福瑞斯自动化设备股份有限公司 | Parking mechanism check out test set |
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