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CN-224216013-U - Negative clearance hub bearing unit detection tool

CN224216013UCN 224216013 UCN224216013 UCN 224216013UCN-224216013-U

Abstract

The utility model discloses a negative clearance hub bearing unit detection tool, and belongs to the technical field of automobiles. The problem that in the prior art, when negative clearance is detected on the negative clearance hub bearing unit, detection is troublesome and error is large is solved. The automatic setting device mainly comprises a supporting frame and a half shaft, wherein the supporting frame comprises a base, vertical beams are respectively installed on two sides of the base, a rotating frame which is U-shaped is rotatably installed between the vertical beams on two sides, the rotating frame comprises a bottom plate, cantilevers are respectively installed at two ends of the bottom plate, the cantilevers on two sides are respectively fixedly connected with a rotating shaft and are respectively connected with the vertical beams on two sides in a rotating manner through the rotating shafts, the rotating shafts of the cantilevers on one side are connected with a motor, a half shaft installation hole is formed in the middle of the bottom plate, the half shaft comprises a shaft lever, an upper thread head is installed at the top of the shaft lever, an upper nut is installed on the upper thread head, a support is installed on the top surface of the upper nut, and a dial indicator is installed on the support.

Inventors

  • Wang Xiangri
  • FENG GANG
  • SUN CHENGLEI
  • YANG ZHENLIANG
  • Yan Zaogang
  • ZHANG ZHE

Assignees

  • 北京汽车制造厂(青岛)有限公司

Dates

Publication Date
20260508
Application Date
20250430

Claims (7)

  1. 1. The utility model provides a negative play hub bearing unit detects frock, a serial communication port, including support frame (1) and semi-axis, support frame (1) includes base (2), perpendicular roof beam (3) are installed respectively to the both sides of base (2), rotate between perpendicular roof beam (3) in both sides and install rotating frame (4) that are the U type, rotating frame (4) including bottom plate (5), cantilever (6) are installed respectively at the both ends of bottom plate (5), cantilever (6) in both sides are fixed connection pivot (7) respectively and are connected through pivot (7) and rotation of perpendicular roof beam (3) in both sides respectively, motor (8) are connected in pivot (7) of cantilever (6) in one side, half-axis mounting hole has been seted up at the middle part of bottom plate (5), the semi-axis includes axostylus axostyle (9), and threaded head (10) are installed at the top of axostylus axostyle (9), install on threaded head (10) nut (11), install on the top surface of nut (11) and install on support (12), install ameter (13) on the top surface, mount pad (31) are installed to the bottom of axostylus axostyle (31) respectively, and threaded head (14) pass down the installation hole (15).
  2. 2. The negative play hub bearing unit detection tool according to claim 1, wherein the motor (8) is a stepping motor, and the motor (8) is fixedly mounted on the support frame (1).
  3. 3. The negative play hub bearing unit detection tool according to claim 1, wherein a boss (16) is provided at the bottom of the mounting seat (31), and the lower thread head (14) is mounted at the bottom of the boss (16).
  4. 4. The negative play hub bearing unit detection tool according to claim 1, wherein the top surface of the upper nut (11) is provided with a fixing threaded hole (17), the bracket (12) comprises an upper transverse plate (18) and a lower transverse plate (19), the lower transverse plate (19) is provided with a fixing hole, a fixing bolt (20) is inserted between the fixing threaded hole (17) and the fixing hole, the upper transverse plate (18) is connected with the lower transverse plate (19) through a vertical plate (32), the top surface of the upper transverse plate (18) is provided with a dial indicator mounting hole (21), one end of the upper transverse plate (18) is provided with a fastening threaded hole communicated with the dial indicator mounting hole (21), the fastening threaded hole is internally provided with a fastening bolt (22), the dial indicator (13) comprises a watchcase (23) and a measuring rod (24), the bottom of the watchcase (23) is connected with a sleeve (25), the measuring rod (24) passes through the sleeve (25) and one end of the fastening bolt (22) is abutted with the sleeve (25).
  5. 5. The negative play hub bearing unit detection tool according to claim 4, wherein three fixing threaded holes (17) are formed in the top surface of the upper nut (11) along the circumferential direction, and the bracket (12) is connected with one of the fixing threaded holes (17) through a lower transverse plate (19).
  6. 6. The negative play hub bearing unit detection tool according to claim 1, wherein the inner side surface of the vertical beam (3) is provided with stop blocks (26) respectively on two sides of the same-side rotating shaft (7), the outer side surface of the cantilever (6) is provided with a limiting rod (27), and the limiting rod (27) is inserted between the stop blocks (26) on two sides.
  7. 7. The negative play hub bearing unit detection tool according to claim 1, wherein at least one side of the cantilever (6) is provided with an inner positioning hole (28) at the lower side of the rotating shaft (7), a vertical beam (3) at one side of the cantilever (6) provided with the inner positioning hole (28) is provided with outer positioning holes (29) matched with the inner positioning hole (28) at the upper side and the lower side of the rotating shaft (7), and positioning pins (30) can be inserted between the inner positioning hole (28) and the outer positioning holes (29).

Description

Negative clearance hub bearing unit detection tool Technical Field The utility model belongs to the technical field of automobiles, and particularly relates to a negative clearance hub bearing unit detection tool. Background The bearing working play is a gap between the rolling bodies and the inner and outer rings of the bearing after the bearing is mounted to the shaft and the hole, and can be divided into radial play and axial play according to the moving direction. The axial clearance and the radial clearance of the bearing are related, so that the axial clearance is more convenient to measure in actual production, and the radial clearance is usually indirectly controlled in a mode of controlling the axial clearance. Hub bearing units commonly used in commercial vehicles are of two general types, positive play hub bearing units and negative play hub bearing units. The hub bearing unit with positive play can measure the play by using the overturning rack and the dial indicator. However, in the case of the negative play hub bearing unit, a method of measuring the rotational start force of the hub is often adopted for the negative play hub bearing unit in the current production, and the approximate range of the negative play is indirectly estimated. Disclosure of Invention The utility model aims to provide a negative clearance hub bearing unit detection tool, which aims to solve the problems of troublesome detection and large error in the prior art when negative clearance is detected on a negative clearance hub bearing unit. The utility model adopts the following technical scheme to realize, a negative play hub bearing unit detection tool comprises a support frame and a half shaft, wherein the support frame comprises a base, vertical beams are respectively arranged on two sides of the base, a U-shaped rotating frame is rotatably arranged between the vertical beams on two sides, the rotating frame comprises a bottom plate, two ends of the bottom plate are respectively provided with a cantilever, the two side cantilevers are respectively fixedly connected with a rotating shaft and are respectively rotatably connected with the vertical beams on two sides through the rotating shaft, the rotating shaft of one side cantilever is connected with a motor, the middle part of the bottom plate is provided with a half shaft mounting hole, the half shaft comprises a shaft rod, the top of the shaft rod is provided with an upper thread head, an upper nut is arranged on the upper thread head, a bracket is arranged on the top surface of the upper nut, a dial gauge is arranged on the bracket, the bottom of the shaft rod is provided with a mounting seat, and the lower thread head passes through the half shaft mounting hole and is provided with a lower nut. Further, the motor adopts a stepping motor, and the motor is fixedly arranged on the support frame. Further, a boss is arranged at the bottom of the mounting seat, and the lower thread head is mounted at the bottom of the boss. Further, fixed screw holes have been seted up to the top surface of going up the nut, the support includes diaphragm and lower diaphragm, set up the fixed orifices on the diaphragm down, insert fixing bolt between fixed screw holes and the fixed orifices, go up the diaphragm and pass through the riser and connect the diaphragm down, the mounting hole of amesdial is seted up to the top surface of going up the diaphragm, the fastening screw hole of intercommunication amesdial mounting hole is seted up to the one end of going up the diaphragm, insert fastening bolt in the fastening screw hole, the amesdial includes watchcase and measuring stick, the bottom adapter sleeve of watchcase, the measuring stick passes the sleeve pipe, the sleeve pipe passes the amesdial mounting hole, and fastening bolt's one end is contradicted with the sleeve pipe. Further, three fixing threaded holes are formed in the top surface of the upper nut along the circumferential direction, and the support is connected with one of the fixing threaded holes through the lower transverse plate. Further, the inner side surface of the vertical beam is provided with stop blocks at two sides of the same-side rotating shaft respectively, the outer side surface of the cantilever is provided with a limiting rod, and the limiting rod is inserted between the stop blocks at two sides. Further, at least one side of the cantilever is provided with an inner positioning hole at the lower side of the rotating shaft, a vertical beam at one side of the cantilever provided with the inner positioning hole is provided with outer positioning holes matched with the inner positioning holes at the upper side and the lower side of the rotating shaft respectively, and a positioning pin can be inserted between the inner positioning holes and the outer positioning holes. Compared with the prior art, the utility model has the beneficial effects that: The utility model is more convenient when detecting the negative