CN215262199U - Bearing gland locking force measuring device - Google Patents
Bearing gland locking force measuring device Download PDFInfo
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- CN215262199U CN215262199U CN202121513707.4U CN202121513707U CN215262199U CN 215262199 U CN215262199 U CN 215262199U CN 202121513707 U CN202121513707 U CN 202121513707U CN 215262199 U CN215262199 U CN 215262199U
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- gland
- bearing gland
- bearing
- locking force
- measuring device
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Abstract
The utility model discloses a bearing gland locking force measuring device, including sleeve, dynamometer, gland fixed plate and bearing gland, the dynamometer includes forced induction module and pressure reading module, the forced induction module is located inside the sleeve, the gland fixed plate is fixed telescopic top, the bearing gland passes through screw locking to be fixed on the gland fixed plate, bearing gland, gland fixed plate and sleeve are all coaxial, the middle part of gland fixed plate has an installation through-hole, the bottom of bearing gland is located in the installation through-hole and with forced induction module butt. The utility model discloses but measure the axial load to the bearing that the accurate measurement bearing gland produced when different locking force, so can be applied to actual production installation with corresponding required locking force, this measurement mode can be with the axial load control of bearing at the within range of 0.5% of theoretical value to effectively improve the installation accuracy of bearing.
Description
Technical Field
The utility model relates to a force measurement technical field particularly, relates to a bearing gland locking force measuring device.
Background
In a numerical control machine tool, a ball screw is a main transmission part of a feeding system of the numerical control machine tool, and is used for cutting feeding of the machine tool, so that the precision control of the ball screw is particularly important. In ball screw drive, the bearing supports the movement of the screw, which simultaneously bears the axial load and the radial load of the screw, and the mounting of the bearing directly affects the precision of the screw and the service life of the bearing, so the mounting of the bearing has high requirements and standards.
Precise control of the axial load of the bearing is an important criterion for bearing installation. The pressing force of the bearing gland is the axial load of the bearing. The pressing force of the existing bearing gland is obtained by calculating the relation between the locking force and the pressing force of a screw for locking the bearing gland, and because the actual numerical value is influenced by the torque coefficient of the screw, the temperature, the humidity, the lubrication condition, the screwing process and the like of the environment, the actual pressing force has great floating under the same locking force, and the pressing force borne by the bearing cannot be uniformly fixed. The accuracy of the screw cannot therefore be guaranteed.
In view of this, the inventor of the present application invented a device for measuring the locking force of a bearing cover.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bearing gland locking force measuring device that rational in infrastructure is simple, measuring result is accurate.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a bearing gland locking force measuring device, includes sleeve, dynamometer, gland fixed plate and bearing gland, the dynamometer includes forced induction module and pressure reading module, the forced induction module is located inside the sleeve, the gland fixed plate is fixed telescopic top, the bearing gland passes through screw locking to be fixed on the gland fixed plate, bearing gland, gland fixed plate and sleeve are all coaxial, the middle part of gland fixed plate has an installation through-hole, the bottom of bearing gland is located in the installation through-hole and with the forced induction module butt.
Further, the pressure sensing module comprises a sensing main body, wherein a top block in a T shape is arranged at the top end of the sensing main body and comprises a cylindrical abutting portion and a connecting portion, the connecting portion is located at the bottom end of the abutting portion and is fixedly connected with the sensing main body, and the upper end face and the lower end face of the abutting portion are abutted to the bearing gland and the sensing main body respectively.
Furthermore, the upper end surface and the lower end surface of the abutting part are both horizontal surfaces.
Furthermore, the upper end face of the abutting part extends into the mounting through hole and abuts against the bearing gland, and the diameter of the abutting part is equal to the aperture of the mounting through hole.
Further, the top block is abutted with the bearing gland through a backing plate.
Further, a bottom cover is arranged at the bottom end of the sleeve, an adjusting bolt is arranged at the bottom end of the induction main body, and the head of the adjusting bolt is abutted to the bottom cover.
Furthermore, the pressure reading module is located outside the sleeve, a yielding hole is formed in the side wall of the sleeve, and the pressure sensing module is connected with the pressure reading module through a lead penetrating the yielding hole.
Further, the pressure reading module is an electronic display screen or a dial plate.
After the technical scheme is adopted, the utility model has the advantages of as follows:
the utility model discloses bearing gland locking force measuring device, through the actual installation scene of analog simulation bearing gland, but the axial load to the bearing that the dynamometer precision measurement bearing gland produced when different locking force, so according to the actual production demand, can be applied to actual production installation with corresponding required locking force, this measurement mode can be with the axial load control of bearing in the 0.5% within range of theoretical value to effectively improve the installation accuracy of bearing, and then improve the precision of lead screw.
Drawings
Fig. 1 is a schematic perspective view of a measuring device according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a measuring device according to an embodiment of the present invention.
Description of reference numerals:
10-sleeve, 11-abdicating hole, 12-bottom cover,
20-a pressure sensing module, wherein the pressure sensing module,
21-the body of the inductor,
22-top block, 221-abutment, 222-connection,
23-adjusting the position of the bolt, adjusting the bolt,
30-a gland fixing plate, 31-an installation through hole,
40-a bearing gland bush is arranged on the bearing,
50-backing plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
Referring to fig. 1 and 2, the utility model discloses an angular contact bearing gland locking force measuring device specifically includes sleeve 10, dynamometer, gland fixed plate 30 and bearing gland 40, the dynamometer is including being located sleeve 10 inside pressure sensing module 20 and being located sleeve 10 outside pressure reading module (not shown in the figure), gland fixed plate 30 is fixed sleeve 10's top, bearing gland 40 passes through screw locking to be fixed on gland fixed plate 30, bearing gland 40, gland fixed plate 30 and sleeve 10 are all coaxial, gland fixed plate 30's middle part has an installation through-hole 31, bearing gland 40's bottom is located in installation through-hole 31 and with pressure sensing module 20 butt.
The pressure reading module is an electronic display screen or a dial plate, the side wall of the sleeve 10 is provided with a yielding hole 11, the pressure sensing module 20 is connected with the pressure reading module through a lead (not shown in the figure) penetrating through the yielding hole 11, and when the pressure sensing module 20 inside the sleeve 10 is deformed under pressure, the pressure applied to the pressure sensing module can be directly read through the pressure reading module.
In this embodiment, the pressure sensing module 20 includes a sensing body 21, the sensing body 21 is substantially S-shaped, the upper end and the lower end of the induction main body 21 are horizontal planes, a T-shaped top block 22 is arranged at the top end of the induction main body 21, and particularly, the top block 22 comprises an abutting part 221 and a connecting part 222 positioned at the bottom end of the abutting part 221, the abutting portion 221 and the connecting portion 222 are both cylindrical, the connecting portion 222 is fixedly connected to the sensing body 21, the connecting portion 222 is fixed to the sensing body 21 by a screw thread, the upper and lower end surfaces of the abutting portion 221 are horizontal surfaces, and the upper and lower end surfaces of the contact part 221 are respectively contacted with the bearing gland 40 and the induction main body 21, the upper end surface of the abutting part 221 extends into the mounting through hole 31 to abut against the bearing gland 40, and the diameter of the abutting part 221 is equal to the diameter of the mounting through hole 31. The design of the top block 22 provides a plane for the sensing body 21 to deform under stress, so that the pressure borne by the sensing body 21 is closer to the pressing force generated by the bearing gland 40, and the detected pressure value of the dynamometer can be more accurate.
Further, the top block 22 abuts against the bearing cover 40 through a pad 50, and the pad 50 is shaped like a circular cake and has a diameter equal to the diameter of the mounting through hole 31. The design of the backing plate 50 enables the installation of the bearing gland 40 to be closer to the actual installation scene, thereby improving the accuracy of the final measurement structure.
In this embodiment, a bottom cover 12 is disposed at a bottom end of the sleeve 10, an adjusting bolt 23 is disposed at a bottom end of the sensing body 21, and a head of the adjusting bolt 23 abuts against the bottom cover 12. The adjusting bolt 23 can adjust the up-and-down position of the top block 22 in the mounting through hole 31, so that the bearing gland 40 can be suitable for bearing glands 40 of different specifications, and the whole measuring device is more flexible to use.
When the bearing gland is installed and used, the induction main body 21, the adjusting bolt 23 and the top block 22 are assembled and then are arranged in the sleeve 10, then the gland fixing plate 30 is fixed at the top end of the sleeve 10, the top block 22 is located in the installation through hole 31, the gland fixing plate 30 is fixed at the top end of the sleeve 10 through screws, then the base plate 50 is placed on the top block 22 in the installation through hole 31, finally the bearing gland 40 is locked on the gland fixing plate 30 through the screws, and meanwhile the bottom end of the bearing gland 40 is pressed on the base plate 50.
After the bearing gland 40 is locked and fixed by the screws, the sensing main body 21 can bear a certain pressure, the pressure can be directly read by the pressure reading module, the installation mode of the bearing gland 40 integrally simulates the actual installation scene of the simulated bearing gland 40, so the pressure value read by the pressure reading module is the pressing force actually generated by the bearing gland 40 under the state, the pressing force is the axial load born by the bearing under the same actual installation condition, the locking force of the locking screws corresponding to the pressing force is the locking force actually corresponding to the generated axial load, the axial load of the bearing generated by the bearing gland 40 under different locking forces is accurately measured by the dynamometer, and the corresponding required locking force can be applied to actual production and installation according to the actual production requirement.
The pressing force of the bearing gland 40 obtained by the measuring device is the actual pressing force, compared with the existing calculation through a formula, the method has the advantages that the error is not larger due to the influence of factors such as the torque coefficient of a screw, the temperature, the humidity, the lubrication condition and the screwing process of the environment, the axial load of the bearing can be controlled within +/-0.5% of the theoretical value, the mounting precision of the bearing is effectively improved, and the precision of the screw rod is further improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a bearing gland locking force measuring device which characterized in that: including sleeve, dynamometer, gland fixed plate and bearing gland, the dynamometer includes pressure sensing module and pressure reading module, the pressure sensing module is located inside the sleeve, the gland fixed plate is fixed telescopic top, the bearing gland passes through screw locking to be fixed on the gland fixed plate, bearing gland, gland fixed plate and sleeve are all coaxial, the middle part of gland fixed plate has an installation through-hole, the bottom of bearing gland is located in the installation through-hole and with the butt of pressure sensing module.
2. The bearing gland locking force measuring device of claim 1, wherein: the pressure sensing module comprises a sensing main body, wherein a T-shaped top block is arranged at the top end of the sensing main body and comprises cylindrical abutting parts and connecting parts, the connecting parts are located at the bottom ends of the abutting parts and fixedly connected with the sensing main body, and the upper end face and the lower end face of the abutting parts are abutted to the bearing gland and the sensing main body respectively.
3. The bearing gland locking force measuring device of claim 2, wherein: the upper end face and the lower end face of the abutting part are horizontal planes.
4. The bearing gland locking force measuring device of claim 3, wherein: the upper end face of the abutting part extends into the mounting through hole and abuts against the bearing gland, and the diameter of the abutting part is equal to the aperture of the mounting through hole.
5. The bearing gland locking force measuring device of claim 4, wherein: the top block is abutted with the bearing gland through a base plate.
6. The bearing gland locking force measuring device of claim 2, wherein: the bottom end of the sleeve is provided with a bottom cover, the bottom end of the induction main body is provided with an adjusting bolt, and the head of the adjusting bolt is abutted to the bottom cover.
7. The bearing gland locking force measuring device of claim 1, wherein: the pressure reading module is located outside the sleeve, a yielding hole is formed in the side wall of the sleeve, and the pressure sensing module is connected with the pressure reading module through a lead penetrating through the yielding hole.
8. The bearing gland locking force measuring device of claim 1 or 7, wherein: the pressure reading module is an electronic display screen or a dial plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121513707.4U CN215262199U (en) | 2021-07-05 | 2021-07-05 | Bearing gland locking force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121513707.4U CN215262199U (en) | 2021-07-05 | 2021-07-05 | Bearing gland locking force measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215262199U true CN215262199U (en) | 2021-12-21 |
Family
ID=79486957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121513707.4U Active CN215262199U (en) | 2021-07-05 | 2021-07-05 | Bearing gland locking force measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215262199U (en) |
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2021
- 2021-07-05 CN CN202121513707.4U patent/CN215262199U/en active Active
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