CN202916089U - Auxiliary supporting device for a spindle of a rotary strength testing machine - Google Patents
Auxiliary supporting device for a spindle of a rotary strength testing machine Download PDFInfo
- Publication number
- CN202916089U CN202916089U CN 201220579497 CN201220579497U CN202916089U CN 202916089 U CN202916089 U CN 202916089U CN 201220579497 CN201220579497 CN 201220579497 CN 201220579497 U CN201220579497 U CN 201220579497U CN 202916089 U CN202916089 U CN 202916089U
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- China
- Prior art keywords
- testing machine
- strength testing
- support
- main shaft
- overcoat
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- Expired - Fee Related
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
An auxiliary supporting device for a spindle of a rotary strength testing machine comprises a support main body and a feeding device. The support main body includes a support shaft, a sliding body, and a transmission nut which are sequentially connected; the feeding device comprises a locking nut, a rotary handwheel and a feeding screw which are sequentially connected; the support main body and the feeding screw of the feeding device are mounted in a support housing, the sliding body is connected with the feeding screw by the transmission nut, a front end cover and a back end cover are respectively arranged on the two ends of the support housing, a guide bolt is mounted on the side surface of the support housing, and one end of the guide bolt passes through the support housing and then inserts into a guide groove of the sliding body. Compared with the prior art, the axial force is loaded on the working end of the spindle of the rotary strength testing machine by the support shaft to play the auxiliary support role, and the two ends are subjected to positioning and supporting, thus the strength of the spindle and the damage resistance ability of the spindle are increased, and the service life of the spindle system is prolonged.
Description
Technical field
The utility model belongs to emery wheel revolving strength detection technique, relates in particular to the main shaft support of the revolving strength testing machine that detects for major diameter, high thickness emery wheel revolving strength.
Background technology
Revolving strength is the most important technical parameters of various emery wheels, it is related to the security that emery wheel uses, the check of emery wheel revolving strength is carried out at the Special rotating strength-testing machine, enforceable test stone has all been formulated in the detection of emery wheel revolving strength both at home and abroad.
The revolving strength testing machine of present domestic use all is to adopt monolateral supporting construction, and rotary main shaft relies on several to bearing (being two pairs generally speaking) support, and the impact the when centrifugal force during the emery wheel revolution, uneven inertia, fragmentation all is carried on the bearing.Little when diameter, the thickness of emery wheel, weight ratio hour adopts monolateral support structure concerns little, but for the emery wheel of major diameter, high thickness, this structure just exists bearing to hold flimsy problem.The thickness of emery wheel is very large on the bearing life impact of monolateral supporting construction, if grinding wheel thickness is large, then need the length of main shaft working position to strengthen, however the moment that same centrifugal force, uneven inertia, broken impulsive force produce also can become greatly, bearing is easily damage just.When the thickness of emery wheel surpassed 200mm, it is very outstanding that the problem of monolateral supporting construction just seems.
The utility model content
Technical problem to be solved in the utility model is by for revolving strength testing machine main shaft provides a kind of auxiliary support apparatus, reaches and improves the main shaft survivability, the effect that prolongs the axis system life-span.
Provide following technical scheme in order to address the above problem: a kind of revolving strength testing machine main shaft auxiliary support apparatus, comprise supportive body and feed arrangement, described supportive body comprises back shaft, slide mass, the transmission nut that connects successively; Feed arrangement comprises fastening screw nut, rotation hand wheel, the feed screw that connects successively; The feed screw of supportive body and feed arrangement is installed in and supports in the overcoat, slide mass is connected with feed screw by transmission nut, support the overcoat two ends and be respectively equipped with front end end cover and rear end cap, support the overcoat side guiding bolt is installed, guiding bolt one end passes the support overcoat and is inserted in the gathering sill of slide mass.
The a pair of cylinder roller bearing of described back shaft by front end is connected a cover angular contact bearing and is connected with slide mass with the rear end, cylinder roller bearing and angular contact bearing are fixed by front end end cover and back shaft positions by front end end cover.
Add oil sealing on the interior ring of described front end end cover.
In the described feed arrangement, feed screw is connected with the support overcoat by a pair of deep groove ball bearing, and adopts circlip and rear end cap to position, and the rotation hand wheel of afterbody adopts flat key to be connected with feed screw with fastening screw nut.
By the effect of guiding bolt, rotatablely moving of feed screw is converted to the rectilinear motion of slide mass.
The utility model is compared with background technology, loaded axial force by back shaft in the working end of revolving strength testing machine main shaft, played the effect of supplemental support, its two ends are all located and supporting role, this structure has increased the intensity of main shaft, can improve the main shaft survivability, play the effect that prolongs the axis system life-span.
The utility model radial beat eccentricity is not more than 0.03mm, by its supporting role, can guarantee that radial beat eccentricity that the radial beat eccentricity technical indicator of revolving strength testing machine main shaft complies with the national standard requirements is not more than the technical requirement of 0.03mm.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the use constitutional diagram of the utility model when being withdrawn into extreme position.
Embodiment
As shown in Figure 1, a kind of revolving strength testing machine main shaft auxiliary support apparatus comprises supportive body and feed arrangement, and described supportive body comprises back shaft 2, slide mass 24, the transmission nut 17 that connects successively; Back shaft 2 is connected a cover angular contact bearing 19 by a pair of cylinder roller bearing 20,21 of front end and is connected with slide mass 24 with the rear end, cylinder roller bearing and angular contact bearing are fixed by front end end cover 3 and back shaft 2 positions by front end end cover 3.Front end end cover 3 is fixed on the slide mass 24 by 4 uniform hexagon socket head cap screws 22; Feed arrangement comprises fastening screw nut 11, rotation hand wheel 10, the feed screw 16 that connects successively; Feed screw 16 is connected with support overcoat 7 by a pair of deep groove ball bearing 14,15, and adopts circlip 13 and rear end cap 9 to position; The rotation hand wheel 10 of afterbody adopts flat keys 12 to be connected with fastening screw nut to be connected with feed screw 16.The feed screw of supportive body and feed arrangement is installed in and supports in the overcoat 7, and slide mass 24 is connected with feed screw 16 by transmission nut 17, and transmission nut 17 is fixed on the slide mass 24 by 4 uniform hexagon socket head cap screws 18;
Support overcoat 7 two ends and be respectively equipped with front end end cover 3 and rear end cap 9; Add oil sealing 23 on the interior ring of front end end cover 3, can prevent that the dust in the revolving strength testing machine protection cavity from entering in the support overcoat; Rear end cap 9 is fixed on the support housings 7 by 4 uniform hexagon socket head cap screws 8.Support overcoat 7 sides guiding bolt 6 is installed, guiding bolt 6 one ends pass the support overcoat and are inserted in the gathering sill of slide mass 24; By the effect of guiding bolt 6, rotatablely moving of feed screw 16 is converted to the rectilinear motion of slide mass 24.
Supporting overcoat 7 is connected to the utility model on the front panel 4 of revolving strength testing machine protection cavity by 4 uniform interior six square bolts 5.
When the revolving strength check of carrying out emery wheel, at first rotate rotation hand wheel 10, make slide mass 24 drive back shaft 2 and move backward, break away from main shaft 1, as shown in Figure 2.Then open the protection cavity of revolving strength testing machine.After emery wheel and auxiliary mould thereof install, close and lock the protection cavity, counter-rotation rotation hand wheel 10 makes slide mass 24 drive back shafts 2 and travels forward, until back shaft 2 compresses and support the main shaft 1 of rotation test machine.Then normal operation step raising speed, maintenance, the reduction of speed checked according to revolving strength.
Claims (5)
1. a revolving strength testing machine main shaft auxiliary support apparatus comprises supportive body and feed arrangement, it is characterized in that: described supportive body comprises back shaft, slide mass, the transmission nut that connects successively; Feed arrangement comprises fastening screw nut, rotation hand wheel, the feed screw that connects successively; The feed screw of supportive body and feed arrangement is installed in and supports in the overcoat, slide mass is connected with feed screw by transmission nut, support the overcoat two ends and be respectively equipped with front end end cover and rear end cap, support the overcoat side guiding bolt is installed, guiding bolt one end passes the support overcoat and is inserted in the gathering sill of slide mass.
2. revolving strength testing machine main shaft auxiliary support apparatus according to claim 1, it is characterized in that: a pair of cylinder roller bearing of described back shaft by front end is connected a cover angular contact bearing and is connected with slide mass with the rear end, cylinder roller bearing and angular contact bearing are fixed by front end end cover and back shaft positions by front end end cover.
3. revolving strength testing machine main shaft auxiliary support apparatus according to claim 2 is characterized in that: add oil sealing on the interior ring of described front end end cover.
4. revolving strength testing machine main shaft auxiliary support apparatus according to claim 1, it is characterized in that: in the described feed arrangement, feed screw is connected with the support overcoat by a pair of deep groove ball bearing, and adopting circlip and rear end cap to position, the rotation hand wheel of afterbody adopts flat key to be connected with feed screw with fastening screw nut.
5. revolving strength testing machine main shaft auxiliary support apparatus according to claim 1 is characterized in that: by the effect of guiding bolt, rotatablely moving of feed screw is converted to the rectilinear motion of slide mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220579497 CN202916089U (en) | 2012-11-06 | 2012-11-06 | Auxiliary supporting device for a spindle of a rotary strength testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220579497 CN202916089U (en) | 2012-11-06 | 2012-11-06 | Auxiliary supporting device for a spindle of a rotary strength testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202916089U true CN202916089U (en) | 2013-05-01 |
Family
ID=48164394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220579497 Expired - Fee Related CN202916089U (en) | 2012-11-06 | 2012-11-06 | Auxiliary supporting device for a spindle of a rotary strength testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202916089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364260A (en) * | 2013-06-17 | 2013-10-23 | 南京航空航天大学 | High-speed rotation test device for ultra-hard material grinding sand wheel |
-
2012
- 2012-11-06 CN CN 201220579497 patent/CN202916089U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364260A (en) * | 2013-06-17 | 2013-10-23 | 南京航空航天大学 | High-speed rotation test device for ultra-hard material grinding sand wheel |
| CN103364260B (en) * | 2013-06-17 | 2015-09-09 | 南京航空航天大学 | A kind of super-abrasive grinding wheel High Rotation Speed proving installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES + GRIND Free format text: FORMER OWNER: ZHENGZHOU ABRASIVE MATERIALS, ABRASIVE TOOLS, GRINDING INST. (CN) NO.1 HUASHAN R Effective date: 20131213 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131213 Address after: 450001 Zhengzhou high tech Zone, Henan, China Street, No. 121 Patentee after: ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES & GRINDING Co.,Ltd. Patentee after: ZHENGZHOU SANMO SUPERHARD MATERIAL Co.,Ltd. Address before: 450001 Zhengzhou high tech Zone, Henan, China Street, No. 121 Patentee before: ZHENGZHOU Research Institute FOR ABRASIVES & GRINDING Patentee before: ZHENGZHOU SANMO SUPERHARD MATERIAL Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20211106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |