CN211262702U - Connecting device for loading of rotating main shaft - Google Patents
Connecting device for loading of rotating main shaft Download PDFInfo
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- CN211262702U CN211262702U CN201922302464.9U CN201922302464U CN211262702U CN 211262702 U CN211262702 U CN 211262702U CN 201922302464 U CN201922302464 U CN 201922302464U CN 211262702 U CN211262702 U CN 211262702U
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- loading
- force transmission
- joint
- main shaft
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Abstract
The utility model discloses a connecting device for loading a rotary main shaft, which comprises a loading fixed support; a central guide sleeve which is transversely distributed is arranged in the loading fixed support; a force transmission guide inner sleeve capable of sliding transversely is arranged in the central guide sleeve; a group of double-row tapered roller bearings are fixedly arranged in the force transmission guide inner sleeve; a rotary force transmission shaft which is transversely distributed is arranged in the double-row tapered roller bearing; the outer side of the right end of the rotary force transmission shaft is fixedly connected with a loading connecting flange; the left end of the force transmission guide inner sleeve is fixedly connected with a loading joint; the left end of the fixed loading support is fixedly connected with the loader mounting support; and the loader is fixedly arranged on the loader mounting support. The utility model discloses a connecting device is used in rotatory main shaft loading, its structural design science can satisfy multiple engine, motor and gear box when performance test, the accurate demand of harmless axial loading pulling force load of pairing rotation main shaft, and the practicality is strong.
Description
Technical Field
The utility model relates to an engine, motor and gear box test technical field especially relate to a connecting device is used in rotatory main shaft loading.
Background
At present, a rotating spindle part comprises an engine crankshaft, a motor rotor mandrel, transmission mandrels in a gear box and installation positioning accessories of the transmission mandrels, and is an important part for the rotating motion and power output of the engine, the motor and the gear box.
The rotating main shaft and the mounting and positioning accessories thereof are used as a technical product, and various performance indexes of the rotating main shaft are closely related to various production and assembly links and inseparable from final performance tests of the product.
In order to ensure the working performance of the developed engine, motor and gear box, the engine, motor and gear box need to be tested. During testing, axial loading of various simulation working conditions is required to be carried out on the rotating main shafts of the engine, the motor and the gear box, and tests such as belt running and running-in of the engine, the motor and the gear box under various simulation working conditions are completed.
However, in the existing axial loading device, the universal ball joint adaptor is arranged at the pushing end part of the loader, so that accurate lossless loading of tensile loads on the engine crankshaft, the motor rotor core shaft and each transmission core shaft in the gear box which rotate at high speed cannot be realized, and the axial loading requirement during tests of the engine, the motor and the gear box cannot be met.
Therefore, at present, a technology is urgently needed to be developed, the requirement that the rotating main shaft is accurately and nondestructively loaded with the tensile load in the axial direction can be met when various engines, motors and gear boxes are subjected to performance testing, and the practicability is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a connecting device is used in rotatory main shaft loading to the technical defect that prior art exists.
Therefore, the utility model provides a connecting device for loading a rotating main shaft, which comprises a loading fixed support;
a central guide sleeve which is transversely distributed is arranged in the loading fixed support;
a force transmission guide inner sleeve capable of sliding transversely is arranged in the central guide sleeve;
a group of double-row tapered roller bearings are fixedly arranged in the force transmission guide inner sleeve;
a rotary force transmission shaft which is transversely distributed is arranged in the double-row tapered roller bearing;
the outer side of the right end of the rotary force transmission shaft is fixedly connected with a loading connecting flange;
the left end of the force transmission guide inner sleeve is fixedly connected with a loading joint;
the left end of the fixed loading support is fixedly connected with the loader mounting support;
and the loader is fixedly arranged on the loader mounting support.
And a guide pin for preventing the central guide sleeve and the force transmission guide inner sleeve from rotating relatively is arranged between the central guide sleeve and the force transmission guide inner sleeve.
The loading connecting flange is fixedly connected to the loading end face of the rotating main shaft mounting and fixing machine body of the rotating main shaft to be loaded.
The right end of the loading fixing support is provided with a first front positioning excircle boss which is matched and positioned with the positioning mounting end of the rotating main shaft mounting and fixing machine body;
the outer side peripheral direction of the first front positioning excircle boss is provided with first bolt holes at equal intervals for connection and fastening.
The right end of the loading connecting flange is provided with a second positioning excircle groove which is matched and positioned with the end face of a rotating main shaft mounting and fixing machine body;
and a plurality of second bolt holes for connecting and fastening are formed in the second positioning outer circular groove at equal intervals along the circumferential direction.
The left end of the loading connecting flange is provided with a third positioning excircle lug which is matched and positioned with the right end of the rotary force transmission shaft;
and the left end of the loading connecting flange is connected and fastened at the right end of the rotary force transmission shaft through a plurality of third bolts distributed at equal intervals along the circumferential direction.
The outer wall of the left end of the rotary force transmission shaft is provided with a round nut assembly which is used for fixedly installing the inner ring of the double-row tapered roller bearing on the outer circumference of the rotary force transmission shaft;
the outer wall of the right end of the rotary force transmission shaft is provided with a threaded sleeve which is used for fixedly installing the outer ring of the double-row tapered roller bearing on the inner circumference of the force transmission guide inner sleeve;
meanwhile, an annular labyrinth seal groove for preventing bearing lubricating grease from leaking is arranged at the matching part of the inner circumference of the screw sleeve and the outer circumference of the rotary force transmission shaft;
the screw thread connection part of the screw sleeve and the force transmission guide inner sleeve is also provided with a set screw for preventing connection looseness.
The piston rod of the loader is fixedly connected with the left ends of the movable joints which are transversely distributed;
the right end of the movable joint is fixedly connected with the left end of the fork joint which is transversely distributed;
the right end of the fork joint is hinged with the left end of the loading joint.
Wherein, the middle part of the right end of the fork joint is provided with a joint bearing;
the connecting rod at the right end of the joint bearing is fixedly connected with the left end of the loading joint;
the inner ring of the joint bearing is fixedly connected with the right end of the fork joint through a pin shaft and a cotter pin;
the pin shaft vertically penetrates through the upper side and the lower side of the right end of the fork joint.
Wherein, the movable joint and the piston rod of loader to and the threaded connection department of movable joint and fork joint still are equipped with first set screw and second set screw respectively.
By above the utility model provides a technical scheme is visible, compares with prior art, the utility model provides a connecting device is used in rotatory main shaft loading, its structural design science can satisfy multiple engine, motor and gear box when performance test, the accurate demand of harmless axial loading pulling force load of pairing rotation main shaft, and the practicality is strong, has great production practice meaning.
Drawings
Fig. 1 is a front sectional view of a connecting device for loading a rotating spindle according to the present invention.
Fig. 2 is a top view of the connecting device for axial loading of the rotating spindle according to the present invention.
Fig. 3 is a right side view of the connecting device for axial loading of the rotating spindle according to the present invention.
Detailed Description
In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 3, the present invention provides a connecting device for loading a rotary spindle, which comprises a loading fixing support 1 as a mounting base of the connecting device;
a central guide sleeve 3 which is transversely distributed is arranged in the loading fixed support 1;
a force transmission guide inner sleeve 4 capable of sliding transversely is arranged in the central guide sleeve 3;
a group of double-row tapered roller bearings 6 are fixedly arranged in the force transmission guide inner sleeve 4;
a rotary force transmission shaft 7 which is transversely distributed is arranged in the double-row tapered roller bearing 6;
the outer side of the right end of the rotary force transmission shaft 7 is fixedly connected with a loading connecting flange 2;
the left end of the force transmission guide inner sleeve 4 is fixedly connected with a loading joint 8;
the left end of the fixed loading support 1 is fixedly connected (for example, through a bolt) with a loader (the loader comprises an oil cylinder, an electric push rod and the like) installation support 9;
the loader is fixedly installed on the loader installation support 9, and the loader 10 is fixedly installed on the loader installation support.
The loading fixing support 1 is a fixing base of the connecting device for loading, one end of the loading fixing support is fixedly connected to a rotating main shaft mounting fixing machine body of a rotating shaft needing loading, and the other end of the loading fixing support is fixedly provided with a loader 10 through a loader (an oil cylinder, an electric push rod and the like) mounting support 9.
The utility model discloses in, on specifically realizing, central guide sleeve 3 with pass the position between the power direction endotheca 4, be provided with and be used for preventing central guide sleeve 3 with pass power direction endotheca 4 relative pivoted uide pin 5.
The utility model discloses in, on specifically realizing, loading flange 2 does the utility model discloses a connecting device for the loading of rotating main shaft's axial loading output, the loading flange 2 fixed connection is at the loading terminal surface position of the fixed organism of rotating main shaft installation (for example multiple engine, motor and gear box) of the rotating main shaft of required loading.
The utility model discloses in, in the concrete realization, double-row tapered roller bearing 6 for realize loading flange 2 and pass the rotary motion isolation between power direction endotheca 4.
It should be noted that, in the present invention, the left end of the force transmission guide inner sleeve 4 is fixedly connected to the loading joint 8 (further fastened by the connecting bolt 506), and the piston rod 100 (i.e. the loading rod) of the loader 10 is hinged to the loading joint 8, so as to realize the axial transmission of the loading force of the loader 10 to the end surface of the rotating spindle shaft.
In the present invention, in the concrete implementation, as shown in fig. 2 and fig. 3, the right end of the loading fixing support 1 is provided with a first front positioning cylindrical boss 101 which is positioned in cooperation with the positioning and mounting end of the rotating main shaft mounting and fixing body (engine, motor, speed reducer);
therefore, the loading fixing support 1 can be aligned and accurately installed at the positioning installation end of the rotating main shaft installation fixing machine body through the first front positioning excircle 101 and the second bolt hole 102; in concrete realization, can be provided with the bolt hole of multiunit front positioning excircle and connection fastening, the location installation end of the fixed organism of multiple rotatory main shaft installation applicable in different ports.
In the present invention, in particular, referring to fig. 1, the right end of the loading connecting flange 2 is provided with a second positioning outer circular groove 201 which is positioned in cooperation with the end surface of the rotating main shaft mounting and fixing machine body;
a plurality of second bolt holes 202 for connecting and fastening are formed in the second positioning outer circle groove 201 along the circumferential direction at equal intervals;
therefore, the loading flange 2 can be aligned and accurately and fixedly connected to the end surface of the rotating main shaft mounting and fixing machine body through the second front positioning outer circular groove 201 and the second bolt hole 202.
In the concrete implementation, the left end of the loading connecting flange 2 is provided with a third positioning excircle lug 203 which is matched and positioned with the right end of the rotary force transmission shaft 7;
the left end of the loading connection flange 2 is connected and fastened to the right end of the rotation transmission shaft 7 by a plurality of third bolts 204 which are equally spaced in the circumferential direction.
In the concrete implementation, the outer wall of the left end of the rotary force transmission shaft 7 is provided with a round nut assembly 301 for fixedly installing the inner ring of the double-row tapered roller bearing 6 on the outer circumference of the rotary force transmission shaft 7.
In the concrete implementation, the outer wall of the right end of the rotary force transmission shaft 7 is provided with a threaded sleeve 302 which is used for fixedly installing the outer ring of the double-row tapered roller bearing 6 on the inner circumference of the force transmission guide inner sleeve 4;
meanwhile, an annular labyrinth seal groove 303 for preventing bearing lubricating grease from leaking is also arranged at the matching part of the inner circumference of the screw sleeve 302 and the outer circumference of the rotary force transmission shaft 7;
the screw thread connection position of the screw sleeve 302 and the force transmission guide inner sleeve 4 is also provided with a set screw 304 for preventing connection looseness.
In the utility model discloses in, in the concrete realization, see fig. 1 and show, pass and be fixed with uide pin 5 through the nut 401 installation on the outer circumference of biography power direction endotheca 4, uide pin 5 can be in the horizontal side-to-side slip of guide way 402 that sets up in the circumference in central guide sleeve 3, realizes the conduction of load.
In the present invention, in a specific implementation, referring to fig. 1, the piston rod 100 of the loader 10 is fixedly connected to the left end of the movable joints 502 which are transversely distributed;
the right end of the movable joint 502 is fixedly connected with the left end of the fork joint 500 which is transversely distributed;
the right end of the fork joint 500 is hinged to the left end of the loading joint 8.
In the concrete implementation, the middle part of the right end of the fork joint 500 is provided with a joint bearing 503;
the connecting rod at the right end of the knuckle bearing 503 is fixedly connected (for example, in a threaded manner) with the left end of the loading joint 8;
the inner ring of the joint bearing 503 is fixedly connected with the right end of the fork joint 500 through a pin shaft 504 and a cotter pin 505;
the pin 504 vertically penetrates the upper and lower sides of the right end of the fork 500.
It should be noted that the forked joint 500 is hinged to the force transmission guide inner sleeve 4 through the knuckle bearing 503, the pin 504, the cotter pin 505 and the loading joint 8.
In a specific implementation, a first fastening screw 507 and a second fastening screw 508 are further respectively disposed at threaded connection positions of the movable joint 502 and the piston rod of the loader 10 and the movable joint 502 and the fork joint 500 to prevent loosening.
In the concrete implementation, the upper side of the left end of the loader installation support 9 is fixedly installed and connected with the right end of the loader 10 through a fourth positioning circular groove 601 and a fourth bolt suite 602;
the left end lower side of the loader mounting support 9 is fixedly mounted at the left end (namely the tail end) of the loading fixing support 1 through the fifth positioning circular groove 603 and the fifth bolt suite 604, so that the loader is accurately mounted and fixed.
It should be noted that, for the present invention, the adopted double-row tapered roller bearing 6 can also be implemented by replacing other types of bearings capable of bearing axial load.
For the utility model discloses, the piston rod 100 of loader 10 that adopts, connecting thread 501, both ends threaded activity joint 502, fork joint 500 that have through the outer surface of piston rod 100 are connected with the loading joint 8 that 4 tails of biography power direction endotheca linked firmly, also can simplify to connected modes such as screw thread directly links, also can increase to connect and draw pressure sensor to realize the direct accurate measurement and the feedback of loading power.
It is required to explain, the utility model discloses a connecting device is used in rotatory main shaft axial loading, its structural design scientific and reasonable can satisfy the axial loading demand of the rotatory main shaft of multiple model, and simple structure, use overhaul convenience, loading pass power accuracy, practicality are strong.
To sum up, compare with prior art, the utility model provides a pair of connecting device is used in rotatory main shaft loading, its structural design science can satisfy multiple engine, motor and gear box when performance test, the demand of the accurate harmless axial loading pulling force load of pairing rotation main shaft, and the practicality is strong, has great production practice meaning.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A connecting device for loading a rotary main shaft is characterized by comprising a loading fixed support (1);
a central guide sleeve (3) which is transversely distributed is arranged in the loading fixed support (1);
a force transmission guide inner sleeve (4) capable of sliding transversely is arranged in the central guide sleeve (3);
a group of double-row tapered roller bearings (6) are fixedly arranged in the force transmission guide inner sleeve (4);
a rotary force transmission shaft (7) which is transversely distributed is arranged in the double-row tapered roller bearing (6);
the outer side of the right end of the rotary force transmission shaft (7) is fixedly connected with a loading connecting flange (2);
the left end of the force transmission guide inner sleeve (4) is fixedly connected with a loading joint (8);
the left end of the fixed loading support (1) is fixedly connected with a loader mounting support (9);
the loader (10) is fixedly arranged on the loader mounting support (9).
2. A connecting device for loading a rotating spindle according to claim 1, characterized in that a guide pin (5) for preventing the relative rotation of the central guide sleeve (3) and the force transmission guide inner sleeve (4) is provided at a position between the central guide sleeve (3) and the force transmission guide inner sleeve (4).
3. A rotary spindle loading attachment as claimed in claim 1, wherein the loading attachment flange (2) is fixedly attached to a loading end face of a rotary spindle mounting fixture body to which the rotary spindle is to be loaded.
4. The connecting device for loading the rotary main shaft according to claim 1, wherein a first front positioning outer circular boss (101) which is matched and positioned with the positioning and mounting end of the rotary main shaft mounting and fixing machine body is arranged at the right end of the loading fixing support (1);
first bolt holes (102) for connection and fastening are arranged in the outer peripheral direction of the first front positioning outer circular boss (101) at equal intervals.
5. The connecting device for loading the rotating main shaft according to claim 1, wherein the right end of the loading connecting flange (2) is provided with a second positioning outer circular groove (201) which is matched and positioned with the end surface of the rotating main shaft mounting and fixing machine body;
the second positioning outer circular groove (201) is provided with a plurality of second bolt holes (202) for connecting and fastening at equal intervals along the circumferential direction.
6. The connecting device for loading of the rotating main shaft according to claim 1, wherein the left end of the loading connecting flange (2) is provided with a third positioning outer circular convex block (203) which is matched and positioned with the right end of the rotating force transmission shaft (7);
the left end of the loading connecting flange (2) is connected and fastened to the right end of the rotation force transmission shaft (7) through a plurality of third bolts (204) distributed at equal intervals along the circumferential direction.
7. A connecting device for loading of a rotating main shaft according to claim 1, characterized in that the outer wall of the left end of the rotating force transmission shaft (7) is provided with a round nut assembly (301) for fixedly mounting the inner ring of the double-row tapered roller bearing (6) on the outer circumference of the rotating force transmission shaft (7);
the outer wall of the right end of the rotary force transmission shaft (7) is provided with a threaded sleeve (302) which is used for fixedly installing the outer ring of the double-row tapered roller bearing (6) on the inner circumference of the force transmission guide inner sleeve (4);
meanwhile, an annular labyrinth seal groove (303) for preventing bearing lubricating grease from leaking is further arranged at the matching position of the inner circumference of the screw sleeve (302) and the outer circumference of the rotary force transmission shaft (7);
the screw thread connection part of the screw sleeve (302) and the force transmission guide inner sleeve (4) is also provided with a set screw (304) for preventing connection looseness.
8. A connecting device for loading a rotary spindle according to claim 1, characterized in that the piston rod (100) of the loader (10) is fixedly connected to the left end of a laterally disposed movable joint (502);
the right end of the movable joint (502) is fixedly connected with the left end of the fork joint (500) which is transversely distributed;
the right end of the fork joint (500) is hinged with the left end of the loading joint (8).
9. A connecting device for loading a rotating main shaft according to claim 8, characterized in that a knuckle bearing (503) is provided in the middle of the right end of the fork joint (500);
the connecting rod at the right end of the joint bearing (503) is fixedly connected with the left end of the loading joint (8);
the inner ring of the joint bearing (503) is fixedly connected with the right end of the fork joint (500) through a pin shaft (504) and a split pin (505);
the pin shaft (504) vertically penetrates through the upper side and the lower side of the right end of the fork joint (500).
10. The connecting device for loading of a rotating spindle according to claim 8, characterized in that the threaded connections of the movable joint (502) to the piston rod of the loader (10) and of the movable joint (502) to the fork joint (500) are provided with a first set screw (507) and a second set screw (508), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922302464.9U CN211262702U (en) | 2019-12-20 | 2019-12-20 | Connecting device for loading of rotating main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922302464.9U CN211262702U (en) | 2019-12-20 | 2019-12-20 | Connecting device for loading of rotating main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211262702U true CN211262702U (en) | 2020-08-14 |
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ID=71990791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922302464.9U Active CN211262702U (en) | 2019-12-20 | 2019-12-20 | Connecting device for loading of rotating main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211262702U (en) |
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2019
- 2019-12-20 CN CN201922302464.9U patent/CN211262702U/en active Active
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