Search

CN-224216015-U - Device for measuring radial clearance of flexible bearing

CN224216015UCN 224216015 UCN224216015 UCN 224216015UCN-224216015-U

Abstract

The utility model belongs to the technical field of clearance measuring devices, and discloses a radial clearance measuring device for a flexible bearing, which comprises a chassis, wherein a chuck fixing hole site, a fixing seat fixing hole site and a base fixing hole site are formed in the chassis, the fixing seat is used for fixing the flexible bearing to be measured, a measuring rod of the dial indicator is fixed with the chassis, a measuring head of the dial indicator is tightly propped against the excircle of the flexible bearing to be measured, the base is provided with an inner hole penetrating through two opposite end surfaces, a mandrel is in clearance fit with the inner hole of the base and moves up and down along the axial direction under the action of external force, one end of the mandrel, facing the flexible bearing to be measured, is fixedly provided with a fitting part, in a loading state, the fitting part is contacted with the excircle of the flexible bearing to be measured, the inner ring of the flexible bearing to be measured is fixed, the outer ring rotates from the highest point to the lowest point, the mandrel moves axially, the fitting degree of the fitting part and the excircle of the flexible bearing to be measured is adjusted, the pointer of the dial indicator rotates, and the numerical variation of the dial indicator is the value of the required radial clearance. The utility model is not affected by manual actions, and the detection result is stable and accurate.

Inventors

  • CHEN CHAO
  • SHEN XIAOJIE
  • WANG JUNJIE

Assignees

  • 上海振华轴承总厂有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (10)

  1. 1. A flexible bearing radial play measuring device is characterized by comprising, The surface of the chassis is provided with chuck fixing hole sites, fixing seat fixing hole sites and base fixing hole sites from top to bottom in sequence; The fixing seat is fixed at a fixing hole position of the fixing seat and used for fixing the flexible bearing to be tested; The measuring head of the dial indicator is tightly propped against the excircle of the flexible bearing to be measured, and the base is fixed at the base fixing hole site and provided with an inner hole penetrating through two opposite end surfaces; The mandrel is in clearance fit with the inner hole of the base and moves up and down along the axial direction under the action of external force; the inner ring of the flexible bearing to be measured is fixed, the outer ring rotates from the highest point to the lowest point, the mandrel axially moves, the degree of fitting between the fitting part and the outer circle of the flexible bearing to be measured is adjusted, the pointer of the dial indicator rotates, and the change of the numerical value is the value of the required radial play.
  2. 2. The flexible bearing radial play measuring device according to claim 1, wherein a compression spring is sleeved on the periphery of the mandrel matched with the base, one end of the compression spring is fixed with the mandrel, and the other end of the compression spring is fixed with the inner wall of the inner hole of the base.
  3. 3. The flexible bearing radial play measuring device according to claim 2, wherein a rotating bushing is arranged at one end of the mandrel far away from the aluminum sleeve, and the rotating bushing and the pressure spring act together to drive the mandrel to move axially.
  4. 4. A flexible bearing radial play measuring device as claimed in claim 3, wherein the end face of the base on the side far away from the fixing seat is fixedly connected with a backplate, the backplate is provided with a through hole for the spindle to pass through, and the other end face of the backplate is connected with a rotating bush in a matching manner.
  5. 5. The flexible bearing radial play measuring device of claim 4, wherein the longitudinal section of the backplate is in the shape of a right trapezoid, one side of the plane is connected with the base, one side of the inclined plane is matched with the rotating bush, and the rotating bush is correspondingly provided with a matched inclined plane matched with the inclined plane of the backplate, the two inclined planes are completely attached in a loading state, and a space is reserved between the two inclined planes in an unloading state.
  6. 6. A flexible bearing radial play measuring device according to claim 3, wherein the outer circumferential surface of the rotating bush is provided with a threaded hole, the axis of the threaded hole is perpendicular to the axis of the rotating bush, and a bolt is fixedly connected in the threaded hole.
  7. 7. The flexible bearing radial play measuring device according to claim 1, wherein a chuck fixing hole position of the chassis is fixedly connected with a chuck for fixing a dial gauge measuring rod, and the relative fixing of the measuring rod and the chassis is realized through the clamping of the chuck.
  8. 8. The device for measuring radial play of flexible bearing according to claim 1, wherein the base fixing holes are two rows of vertically arranged threaded holes, the two rows of vertically arranged threaded holes are symmetrically arranged about the longitudinal axis of the chassis, kidney-shaped holes corresponding to the threaded holes are arranged on two sides of the base, and the fixing piece penetrates through the kidney-shaped holes and the threaded holes to fix the base and the chassis.
  9. 9. The flexible bearing radial play measuring device according to claim 1, wherein the chassis is further provided with threaded holes on two sides symmetrical about a longitudinal axis thereof at an upper position for adjusting the height of the chassis to tilt the surface of the chassis at an angle to a proper working position.
  10. 10. The compliant bearing radial play measurement apparatus of claim 1 wherein the conformable member is an aluminum sleeve.

Description

Device for measuring radial clearance of flexible bearing Technical Field The utility model belongs to the technical field of clearance measuring devices, and particularly relates to a device for measuring radial clearance of a flexible bearing. Background After the inner ring, the outer ring and the steel balls of the flexible bearing are sleeved, whether the radial clearance meets the requirement of a design drawing or not needs to be detected. At present, the radial clearance detection method of the flexible bearing mainly comprises the following steps: The simple measuring method is that after the inner ring is pressed, the dial indicator is pressed against the outer ring of the bearing after zeroing, the outer ring is pushed and pulled manually, and the reading is directly read as a radial play value. And the universal special instrument is an X092 detector for the deep groove ball bearing. The simple measurement result is unstable and is greatly influenced by human factors. The detection of the universal special instrument is not suitable for flexible bearings, the loading force cannot be adjusted, and the result is inaccurate. In the prior art, the measurement mode of the radial clearance of the flexible bearing cannot meet the production requirement, and a new measurement tool is needed to be designed to quickly and accurately measure the size of the radial clearance of the flexible bearing. Disclosure of utility model In order to solve the technical problems, the utility model provides a device for measuring radial clearance of a flexible bearing. The utility model is realized by the following technical scheme that the flexible bearing radial clearance measuring device comprises a chassis, wherein a chuck fixing hole site, a fixing seat fixing hole site and a base fixing hole site are sequentially arranged on the surface of the chassis from top to bottom; The fixing seat is fixed at a fixing hole position of the fixing seat and used for fixing the flexible bearing to be tested; The measuring head of the dial indicator is tightly propped against the excircle of the flexible bearing to be measured, and the base is fixed at the base fixing hole site and provided with an inner hole penetrating through two opposite end surfaces; The flexible bearing comprises a base, a mandrel, a fitting part, a pressing part, a dial indicator, a pressing part and a measuring head, wherein the mandrel is in clearance fit with an inner hole of the base and moves up and down along the axial direction of the base under the action of external force; The inner ring of the flexible bearing to be measured is fixed, the outer ring rotates from the highest point to the lowest point, the mandrel moves axially, the fitting degree of the fitting part and the outer circle of the flexible bearing to be measured is adjusted, the dial indicator pointer rotates, and the numerical variation is the value of the required radial play According to the utility model, further, a compression spring is sleeved on the periphery of the mandrel matched with the base, one end of the compression spring is fixed with the mandrel, and the other end of the compression spring is fixed with the inner wall of the inner hole of the base. According to the utility model, a rotating bushing is arranged at one end of the mandrel far away from the aluminum sleeve, and the rotating bushing and the pressure spring act together to drive the mandrel to axially move. According to the utility model, further, the end face of one side of the base far away from the fixed seat is fixedly connected with the rear baffle, the rear baffle is provided with a through hole for the mandrel to pass through, and the end face of the other side of the rear baffle is connected with the rotating bush in a matching way. According to the utility model, the longitudinal section of the rear baffle plate is in a right trapezoid shape, one side of the plane is connected with the base, one side of the inclined plane is matched with the rotating bushing, the rotating bushing is correspondingly provided with a matched inclined plane matched with the inclined plane of the rear baffle plate, the two inclined planes are completely attached in a loading state, and a space is reserved between the two inclined planes in an unloading state. According to the utility model, further, the peripheral surface of the rotating bush is provided with a threaded hole, the axis of the threaded hole is perpendicular to the axis of the rotating bush, and a bolt is fixedly connected in the threaded hole. According to the utility model, further, the chuck fixing hole site of the chassis is fixedly connected with a chuck for fixing the dial gauge measuring rod, and the relative fixation of the measuring rod and the chassis is realized through the clamping of the chuck. According to the utility model, the base fixing holes are two rows of vertically arranged threaded holes, the two rows of vertically arranged threaded