CN111076931A - Connecting device for loading of rotating main shaft - Google Patents
Connecting device for loading of rotating main shaft Download PDFInfo
- Publication number
- CN111076931A CN111076931A CN201911321742.3A CN201911321742A CN111076931A CN 111076931 A CN111076931 A CN 111076931A CN 201911321742 A CN201911321742 A CN 201911321742A CN 111076931 A CN111076931 A CN 111076931A
- Authority
- CN
- China
- Prior art keywords
- loading
- force transmission
- joint
- right end
- main shaft
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/022—Power-transmitting couplings or clutches
Abstract
The invention 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 connecting device for loading the rotating main shaft, disclosed by the invention, is scientific in structural design, can meet the requirements of accurate and lossless axial loading of tensile load on the rotating main shaft during performance tests of various engines, motors and gear boxes, and is strong in practicability.
Description
Technical Field
The invention relates to the technical field of testing of engines, motors and gear boxes, in particular to a connecting device for loading a rotating main shaft.
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.
Disclosure of Invention
The invention aims to provide a connecting device for loading a rotating main shaft, aiming at the technical defects in the prior art.
Therefore, the invention provides 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.
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.
Compared with the prior art, the connecting device for loading the rotating main shaft has the advantages that the structural design is scientific, the requirement of accurate and lossless axial loading of the pulling force load on the rotating main shaft during performance tests of various engines, motors and gear boxes can be met, the practicability is high, and the connecting device has great production practice significance.
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 a connecting device for axial loading of a 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 that those skilled in the art will better understand the technical solution of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and embodiments.
Referring to fig. 1 to 3, the present invention provides a connecting device for loading a rotary spindle, including 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.
In the present invention, in a specific implementation, a guide pin 5 for preventing the central guide sleeve 3 and the force transmission guide inner sleeve 4 from rotating relatively is arranged between the central guide sleeve 3 and the force transmission guide inner sleeve 4.
In the present invention, in a specific implementation, the loading connecting flange 2 is an axial loading output end of the connecting device for loading the rotating spindle of the present invention, and the loading connecting flange 2 is fixedly connected to a loading end face position of a rotating spindle mounting and fixing body (such as various engines, motors and gear boxes) on which the rotating spindle is to be loaded.
In the invention, the double-row tapered roller bearing 6 is used for realizing the isolation of the rotary motion between the loading connecting flange 2 and the force transmission guide inner sleeve 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 that the loading force of the loader 10 is axially transmitted to the end surface of the rotating spindle shaft.
In the present invention, in terms of specific 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 outer circular boss 101 which is positioned in cooperation with the positioning and mounting end of the rotating main shaft mounting 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 a specific implementation, 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 face of the rotating main shaft installation and fixation 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 present invention, referring to fig. 1, a guide pin 5 is fixedly installed on the outer circumference of the force transmission guide inner sleeve 4 through a nut 401, and the guide pin 5 can slide horizontally and left and right in a guide groove 402 formed on the inner circumference of the central guide sleeve 3, so as to realize load transmission.
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 distributed in the transverse direction;
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 double-row tapered roller bearing 6 may be implemented by using other types of bearings capable of bearing axial loads instead.
For the invention, the piston rod 100 of the loader 10 is connected with the loading joint 8 fixedly connected with the tail end of the force transmission guide inner sleeve 4 through the connecting thread 501 arranged on the outer surface of the piston rod 100, the movable joint 502 with threads at two ends and the fork joint 500, and can also be simplified into connection modes such as direct connection of threads and the like, and a connecting pull pressure sensor can also be added, so that the direct and accurate measurement and feedback of the loading force can be realized.
The connecting device for axial loading of the rotating main shaft, disclosed by the invention, has the advantages of scientific and reasonable structural design, capability of meeting the axial loading requirements of various types of rotating main shafts, simple structure, convenience in use and maintenance, accurate loading force transmission and strong practicability.
Compared with the prior art, the connecting device for loading the rotating main shaft provided by the invention has the advantages that the structural design is scientific, the requirement of accurate and lossless axial loading of the rotating main shaft on tensile load can be met when various engines, motors and gear boxes are subjected to performance test, the practicability is high, and the connecting device has great production practice significance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various 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 |
|---|---|---|---|
| CN201911321742.3A CN111076931A (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 |
|---|---|---|---|
| CN201911321742.3A CN111076931A (en) | 2019-12-20 | 2019-12-20 | Connecting device for loading of rotating main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111076931A true CN111076931A (en) | 2020-04-28 |
Family
ID=70315994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911321742.3A Pending CN111076931A (en) | 2019-12-20 | 2019-12-20 | Connecting device for loading of rotating main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111076931A (en) |
-
2019
- 2019-12-20 CN CN201911321742.3A patent/CN111076931A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110243602B (en) | Low-temperature wear test system for joint bearing and assembling method thereof | |
| US10066735B1 (en) | Planetary wheel drive single wall lugged output carrier | |
| CN112729833B (en) | Broken shaft type bearing test system | |
| US10495185B2 (en) | Planetary wheel drive using bushings | |
| CN112696487A (en) | Friction plate clutch oil supply device of double-speed gear box transmission error test bed | |
| CN114646466B (en) | Rolling bearing test equipment with load and assembly double simulation | |
| US6599052B1 (en) | Hub and shaft coupling system | |
| KR20130022047A (en) | Bearing endurance tester | |
| CN211262702U (en) | Connecting device for loading of rotating main shaft | |
| CN109357870B (en) | Radial air bearing performance test machine | |
| CN111076931A (en) | Connecting device for loading of rotating main shaft | |
| CN115371991A (en) | Tapered roller bearing group test device | |
| CN111707467A (en) | Carbon-fibre composite gear contact fatigue test device convenient to dismouting | |
| CN105910821A (en) | Railway motor bearing testing machine | |
| US10132372B2 (en) | Planetary wheel drive brake | |
| CN115060489A (en) | Rotary axial force loading device | |
| CN114061951A (en) | Medium-sized tester loading reversing mechanism | |
| CN110254730B (en) | Generator installation device and aviation aircraft | |
| CN218156857U (en) | Rolling bearing lubricating property test device | |
| CN111120528A (en) | But quick assembly disassembly's axle sleeve flange | |
| CN214036532U (en) | Bearing end cover assembly | |
| CN220982685U (en) | Differential mechanism assembly test bed and device | |
| CN220136662U (en) | Wind power test equipment main shaft test tool | |
| CN217237549U (en) | Tapered roller bearing and angular contact ball bearing life test machine | |
| CN220769845U (en) | Combined locking structure of piston |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |