CN212340825U - Clamping device for tensile test of slewing bearing retainer and tensile test device - Google Patents
Clamping device for tensile test of slewing bearing retainer and tensile test device Download PDFInfo
- Publication number
- CN212340825U CN212340825U CN202020540223.8U CN202020540223U CN212340825U CN 212340825 U CN212340825 U CN 212340825U CN 202020540223 U CN202020540223 U CN 202020540223U CN 212340825 U CN212340825 U CN 212340825U
- Authority
- CN
- China
- Prior art keywords
- ball
- clamping device
- tensile test
- clamping
- preparation
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a clamping device and tensile test device that the tensile test of slewing bearing holder was used. The clamping device comprises two clamping pieces and a bolt group for clamping the two clamping pieces, wherein the clamping pieces are provided with ball accommodating parts for accommodating the balls, and the ball accommodating parts are configured to hold the balls together with the holder holes of the slewing bearing holder under the condition that the clamping pieces are clamped. Tensile test device has according to the utility model discloses a clamping device and spin.
Description
Technical Field
The utility model relates to a clamping device that tensile test of slewing bearing holder was used and tensile test device who has this kind of clamping device.
Background
The retainer is a rolling ball isolation device in the slewing bearing, and bears the impact force of the rolling ball when the slewing bearing operates. In the prior art, a stretcher is used for directly clamping and pulling the retainer for quality inspection and test of the retainer. Because the stressed position of the retainer is the end face of the retainer in the stretching process, but not the ball hole position of the real stressed rolling ball, the quality inspection and test performed in the mode cannot well simulate the stressed process of the retainer, and data deviation occurs in the test data and production detection process.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a modified, a clamping device for tensile test of slewing bearing holder, clamping device can simulate the atress process of holder in the raceway better. According to the utility model provides a clamping device for tensile test of slewing bearing holder, clamping device includes two clamping pieces and is used for making two clamping pieces press from both sides tight bolt group, wherein, the clamping piece has the spin accommodation portion that is used for holding the spin, spin accommodation portion construct under the tight circumstances of clamping piece with the holder hole of slewing bearing holder keeps jointly the spin.
Advantageously, the clip has a head configured with a convex-concave surface structure for being gripped by a tensile tester for performing a tensile test.
Preferably, the convex-concave surface structure is knurled.
Advantageously, the screw arrangement has four screws each arranged in an angular region of the ball receptacle.
Advantageously, the ball housing has a through bore which substantially follows the shape of the surface of the ball.
Preferably, the through hole is a concentric cylindrical hole, and the diameter of the concentric cylindrical hole is smaller than that of the rolling ball.
Advantageously, guide grooves for the placement of the cage are formed in the opposing faces of the two clamping jaws.
Preferably, the holder is arranged with play in the clamping device.
According to the utility model discloses a tensile testing device has changed among the prior art direct centre gripping holder and tensile condition to make whole test process more be close actual stress process, improve experimental precision.
According to the utility model discloses a on the other hand, provide a tensile test device with according to the utility model discloses a clamping device and spin.
According to the utility model discloses a tensile test device have with according to the utility model discloses a corresponding advantage of clamping device.
Drawings
Embodiments according to the present invention are explained in detail below with reference to the accompanying drawings. The figures show:
fig. 1 shows a front view of a tensile testing device for a slewing bearing cage according to the invention;
FIG. 2 shows a top view of the tensile testing apparatus of FIG. 1;
fig. 3 shows a cross-sectional view of the tensile testing apparatus of fig. 2 along section a-a.
In the figures, identical or functionally identical components are denoted by the same reference numerals. The embodiments shown in the figures are only schematic representations and do not necessarily show dimensional relationships between the various components. Furthermore, the embodiments do not limit the scope of the present invention.
Detailed Description
Fig. 1 shows a front view of a tensile testing device 1 for a slewing bearing cage according to the invention.
As can be seen in fig. 1, the tensile testing apparatus 1 comprises two clamping devices 2. The clamping device 2 is configured for clamping a cage 6 of the slewing bearing. The clamping device 2 comprises two jaws 3 and a set of bolts 4. The cage 6 is arranged between the two jaws 3. The bolt set 4 is used for clamping the two clamping pieces 3 to the retainer 6. The clip 3 is configured in a stepped manner and comprises a head 8 and a ball receptacle 7. The head 8 is configured for being securely held by the stretcher. The ball 5 is disposed in the ball housing 7 and is held therein during the tensile test. The ball 5 can be the ball of the slewing bearing to be tested, or can be a steel ball specially used for testing. Thus, the clip 3 has both the function of gripping the ball 5 and the function of being gripped by the stretcher.
Fig. 2 shows a top view of the tensile testing device 1 of fig. 1, wherein a cross-section a-a along the longitudinal centre line of the tensile testing device 1 is indicated. As shown in fig. 2, the head 8 of the clip 3 is knurled to enable the clip to be securely gripped by the stretcher without being snapped. The head 8 may have other forms of uneven surface structures as long as the same effect is produced. In the present embodiment, the bolt set 4 includes 4 bolts which are respectively arranged in four corner regions of the ball housing 7 of the clip 3. It is also conceivable that the set of bolts 4 comprises more than 4 bolts, or that the bolts are arranged in other areas of the ball housing 7, as long as the set of bolts 4 enables the cage 6 between the two clips 3 to be reliably clamped. During the tensile test, the ball 5 is securely held in the ball hole 9 of the holder 6 by the ball housing 7.
Fig. 3 shows a cross-sectional view of the tensile testing apparatus 1 of fig. 2 along section a-a. As can be seen from fig. 3, in order to securely hold the ball 5, the ball-receiving portion 7 of the clip 3 is configured with a stepped concentric cylindrical bore 10. The stepped concentric cylindrical bore 10 has a smaller diameter D than the diameter D of the ball 5. Thereby, on the one hand, it is ensured that the ball 5 is not squeezed out when subjected to a force, and on the other hand, the ball 5 can move within the clip 3. Instead of a stepped concentric cylindrical bore 10, other shaped bores can be configured in the ball receptacle 7, for example a curved bore which substantially follows the surface of the ball 5. Fig. 3 also shows that guide grooves 12 for receiving the holders 6 are formed in the opposing faces of the two clamping jaws 3. The guide groove 12 is dimensioned slightly larger than the holder 12 so that there is a gap 11 between the clamping device 2 and the holder 6 so that the holder 6 can move in the clamping device 2.
In performing the tensile test, the stretcher grips the head 8 of the clip 3 firmly so that the gripping device 2 loads the holder bore 9 with an impact force via the ball 5 in the ball receptacle 7. In the initial loading stage, the whole device gradually eliminates the gap, and the retainer 6 passes through the elastic deformation area and the plastic deformation area after gradually applying force until the retainer 6 is broken. According to the utility model discloses a tensile testing device has changed among the prior art direct centre gripping holder and tensile condition to make whole test process more be close actual stress process, improve experimental precision.
The above embodiments are merely for illustrative purposes to illustrate the present invention, but the present invention is not limited to the above embodiments. On the basis of the embodiments described, a person skilled in the art will be able to make any modifications, alterations or combinations of the features illustrated in the present description without departing from the scope of the invention.
Claims (9)
1. A clamping device for a tensile test of a slewing bearing retainer comprises two clamping pieces and a bolt group for clamping the two clamping pieces,
it is characterized in that the preparation method is characterized in that,
the clip has a ball receptacle for receiving a ball, the ball receptacle being configured to retain the ball in cooperation with the holder bore of the slew-bearing holder with the clip clamped.
2. The clamping device as claimed in claim 1,
it is characterized in that the preparation method is characterized in that,
the clip has a head configured with a convex-concave surface structure for being gripped by a tensile tester for performing a tensile test.
3. The clamping device as claimed in claim 2,
it is characterized in that the preparation method is characterized in that,
the convex-concave surface structure is a knurl.
4. Clamping device according to one of claims 1 to 3,
it is characterized in that the preparation method is characterized in that,
the bolt group has four bolts respectively arranged in the corner regions of the ball housing.
5. Clamping device according to one of claims 1 to 3,
it is characterized in that the preparation method is characterized in that,
the ball housing has a through-hole that substantially follows the surface shape of the ball.
6. The clamping device as claimed in claim 5,
it is characterized in that the preparation method is characterized in that,
the through hole is a concentric cylindrical hole, and the diameter of the concentric cylindrical hole is smaller than that of the rolling ball.
7. Clamping device according to one of claims 1 to 3,
it is characterized in that the preparation method is characterized in that,
guide grooves for receiving the holders are formed in the opposing faces of the two clamping jaws.
8. The clamping device as claimed in claim 7,
it is characterized in that the preparation method is characterized in that,
the holder is arranged with play in the clamping device.
9. A tensile test device for tensile test of a slewing bearing retainer,
it is characterized in that the preparation method is characterized in that,
the tensile testing apparatus comprising a gripping apparatus according to any one of claims 1 to 8 and a ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020540223.8U CN212340825U (en) | 2020-04-13 | 2020-04-13 | Clamping device for tensile test of slewing bearing retainer and tensile test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020540223.8U CN212340825U (en) | 2020-04-13 | 2020-04-13 | Clamping device for tensile test of slewing bearing retainer and tensile test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212340825U true CN212340825U (en) | 2021-01-12 |
Family
ID=74070655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020540223.8U Active CN212340825U (en) | 2020-04-13 | 2020-04-13 | Clamping device for tensile test of slewing bearing retainer and tensile test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212340825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310801A (en) * | 2021-05-14 | 2021-08-27 | 人本股份有限公司 | Tool for ball bearing riveting retainer tensile test |
-
2020
- 2020-04-13 CN CN202020540223.8U patent/CN212340825U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310801A (en) * | 2021-05-14 | 2021-08-27 | 人本股份有限公司 | Tool for ball bearing riveting retainer tensile test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212340825U (en) | Clamping device for tensile test of slewing bearing retainer and tensile test device | |
| CN209841544U (en) | Fatigue test buckling-restrained device for low-strength thin plate | |
| CN102928288B (en) | A kind of tensile test fixture | |
| BR0009164A (en) | Multi-hole test plate hollow for high performance separation | |
| KR20130034321A (en) | Concrete tension test and method for split hopkinson tension bar | |
| CN105527155B (en) | A kind of high/low temperature fatigue test clamper suitable for pole fatigue testing specimen | |
| CN109580201B (en) | Testing device and testing method for variable-angle cable-stayed bolt | |
| CN211453131U (en) | Instability-proof fixture for spline test | |
| CN113740149A (en) | Clamping device for film material tensile test and testing method thereof | |
| CN116539203A (en) | Method for testing second type residual stress of 4J33 kovar alloy | |
| CN215640566U (en) | Keep ware tensile frock | |
| CN219142466U (en) | Small-size thick plate-shaped tensile sample clamp | |
| CN211553565U (en) | Z-direction stretching sample clamping device | |
| CN113514330A (en) | Tensile test device and method | |
| CN217443211U (en) | Clamp suitable for bar sample of in-situ stretching table of scanning electron microscope | |
| CN106525569A (en) | Shear test specimen of high-strength metal material | |
| CN211904895U (en) | Embedded connecting sleeve for Z-direction tensile testing machine | |
| CN215004672U (en) | Clamp for four-point bending fatigue test | |
| KR102043517B1 (en) | Hydrogen delayed fracture testing method | |
| CN215115520U (en) | Concrete axle center tensile test device | |
| CN220084554U (en) | Tensile strength detection device | |
| CN213456407U (en) | Sheet clamp | |
| CN216525162U (en) | Tool for breakage tension test of joint with rotating nut | |
| CN219657346U (en) | Hollow tube vacuum high-temperature stretching clamp | |
| KR101723442B1 (en) | Fatigue testing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |