CN221325319U - Tool for measuring axial displacement of speed reducer in offline simulation mode - Google Patents

Abstract

A tool for measuring axial displacement of a speed reducer through off-line simulation belongs to the technical field of speed reducer maintenance detection equipment and is used for measuring the axial displacement of the speed reducer. The technical scheme is as follows: the upper diameter of the simulation shaft is the same as the shaft diameter of a bearing installed on the speed reducer shaft, a positioning baffle ring is sleeved on the simulation shaft above the positioning baffle ring, an outer bearing and an inner bearing of the speed reducer shaft are sequentially installed in the bearing sleeve, an inner ring retainer ring and an outer ring retainer ring are placed between the outer bearing and the inner bearing, the baffle ring is placed at the upper end of the bearing sleeve, the circumference of the baffle ring is connected with the circumference of the bearing sleeve through bolts, the circumference of the upper part of the simulation shaft is threaded, a sleeve is sleeved on the upper part of the simulation shaft through threads, and the lower end of the sleeve is propped against the inner ring of the outer bearing on the simulation shaft. The axial displacement measuring device is simple in structure and convenient to use, can realize axial displacement measurement of the offline paired tapered roller bearings or angular contact bearings, and can be used for bearing displacement adjustment work under the condition of no shutdown before spare part installation.

Description

Tool for measuring axial displacement of speed reducer in offline simulation mode

Technical Field

The utility model relates to an auxiliary tool for off-line simulation measurement of axial displacement of a speed reducer, and belongs to the technical field of speed reducer maintenance and detection equipment.

Background

The measurement of the axial runout of the speed reducer is an important content of the maintenance work of the speed reducer. At present, the axial movement measurement work of the speed reducer is required to be carried out in a stop state, the speed reducer is disassembled after stopping, and then the acquisition of measurement data can be completed. The data acquisition is difficult, the workload is large, the time consumption is high, and the labor is consumed. In order to avoid obtaining the bearing channeling of the speed reducer in a shutdown state, it is very necessary to design an auxiliary tool for measuring the axial channeling of the speed reducer under a line, indirectly obtaining the bearing channeling before the installation of spare parts and providing assistance for the installation operation, so as to reduce the operation time and avoid secondary operation caused by the out-of-tolerance of the channeling.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a tool for off-line simulation measurement of axial displacement of a speed reducer, which can indirectly obtain bearing displacement before spare parts are installed, and can process a spacer ring off-line under the condition of out-of-tolerance, so that reworking operation caused by out-of-tolerance of the bearing displacement on-line is avoided, shutdown operation time is shortened, and on-line operation efficiency is improved.

The technical scheme for solving the technical problems is as follows:

The utility model provides an off-line analog measurement speed reducer axial displacement's instrument, it contains the bottom plate, the analog shaft, the location baffle ring, the bearing housing, the inner ring retaining ring, the outer loop retaining ring, the sleeve, the bottom plate level is placed, analog shaft's lower extreme fixed connection is on the face of bottom plate, analog shaft is the step shaft, analog shaft's upper portion diameter is the same with the shaft diameter of speed reducer shaft installation bearing, the location baffle ring cover dress is in analog shaft's ladder top, the internal diameter of location baffle ring matches with analog shaft's diameter, the bearing housing overlaps on the analog shaft of location baffle ring top, the internal diameter of bearing housing matches with the external diameter of speed reducer bearing, the inner bearing and the outer bearing of speed reducer shaft are installed in the bearing housing in proper order, inner bearing and the outer ring retaining ring are connected with the inner wall cooperation of bearing housing and outer wall of analog shaft respectively, place inner ring and retaining ring between inner bearing and the outer bearing, inner ring retaining ring and retaining ring are opposite with the inner ring and outer bearing housing's inner ring, the upper end of bearing housing is placed the retaining ring, the annular boss has the annular boss to match with the outer bearing and the outer bearing is installed at the circumference of the outer bearing through the outer bearing and the outer ring is connected with the simulation sleeve through the outer screw thread portion of the outer bearing, the outer bearing is connected with the simulation sleeve is threaded on the circumference of the opposite circumference of the outer bearing through the outer bearing.

The tool for measuring the axial channeling of the speed reducer in an off-line simulation way is characterized in that an annular retainer ring protruding out of an inner hole of the bearing sleeve is arranged at the lower end of the bearing sleeve, an outer ring of the inner bearing is arranged on the annular retainer ring, an annular disc is arranged at the upper end of the bearing sleeve, connecting holes are uniformly distributed on the annular disc, a retaining ring fixing hole is arranged on the circumference of the retaining ring at the upper end of the bearing sleeve and corresponds to the connecting holes of the annular disc of the bearing sleeve, and the retaining ring is connected with the bearing sleeve through the retaining ring fixing hole and the connecting holes by connecting bolts.

The beneficial effects of the utility model are as follows:

The analog shaft is matched with the detected speed reducer shaft to replace the speed reducer shaft for detection, the dial indicator base is fixed on the top surface of the analog shaft after the two bearings are assembled with the analog shaft, the dial indicator pointer is propped against the exposed outer ring side surface part of the outer bearing, and after the dial indicator is zeroed, the analog shaft is fixed, and the bearing channeling value is obtained by moving a tool for fixing the bearing part up and down.

The axial displacement measuring device has the advantages of simple structure, convenient use and difficult damage, can realize the axial displacement measurement of the offline paired tapered roller bearings or angular contact bearings, is safe and quick in the measuring process, can meet the offline adjustment work of the axial displacement of the bearings, can also be used for the axial displacement adjustment work of the bearings under the condition of no shutdown before the installation of spare parts, can indirectly obtain the displacement value, can provide guidance for the actual installation work of the bearings, can replace the bearings when the out-of-tolerance condition occurs, and can avoid the reworking work caused by the out-of-tolerance of the bearing on line.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a measurement schematic of the present utility model;

FIG. 4 is a schematic structural view of a simulation shaft;

FIG. 5 is a schematic view of the structure of the retainer ring;

FIG. 6 is a schematic structural view of a bearing housing;

FIG. 7 is a schematic view of a structure of a retainer ring

Fig. 8 is a cross-sectional view A-A of fig. 7.

The figures are labeled as follows: the device comprises a bottom plate 1, a simulation shaft 2, a positioning baffle ring 3, a bearing sleeve 4, an inner bearing 5, an inner ring retainer ring 6, an outer ring retainer ring 7, an outer bearing 8, a baffle ring 9, a sleeve 10, threads 11, an annular retainer ring 12, an annular disc 13, a connecting hole 14, a baffle ring fixing hole 15, a connecting bolt 16, an annular bulge 17 and a dial indicator 18.

Detailed Description

The utility model is composed of a bottom plate 1, a simulation shaft 2, a positioning baffle ring 3, a bearing sleeve 4, an inner bearing 5, an inner ring retainer ring 6, an outer ring retainer ring 7, an outer bearing 8, a baffle ring 9 and a sleeve 10.

Fig. 1, 2 and 4 show that the bottom plate 1 is horizontally placed, and the lower end of the analog shaft 2 is fixedly connected to the plate surface of the bottom plate 1. The simulated shaft 2 is a stepped shaft, and the diameter of the upper part of the simulated shaft 2 is the same as the shaft diameter of the speed reducer shaft mounting bearing. The positioning baffle ring 3, the bearing sleeve 4, the baffle ring 9 and the sleeve 10 are sequentially sleeved on the simulation shaft 2, and an inner bearing 5, an inner ring retainer ring 6, an outer ring retainer ring 7 and an outer bearing 8 are arranged in the bearing sleeve 4.

Fig. 1, 2 and 5 show that the positioning baffle ring 3 is sleeved above the step of the analog shaft 2, the inner diameter of the positioning baffle ring 3 is matched with the diameter of the analog shaft 2, and the positioning baffle ring 3 is used for axially fixing the lower end of the inner ring of the inner bearing 5.

Fig. 1, 2 and 6 show that the bearing sleeve 4 is sleeved on the simulation shaft 2 above the positioning baffle ring 3, the inner diameter of the bearing sleeve 4 is matched with the outer diameter of a speed reducer bearing, an inner bearing 5 and an outer bearing 8 of the speed reducer shaft are sequentially installed in the bearing sleeve 4, an outer ring and an inner ring of the inner bearing 5 and the outer bearing 8 are respectively connected with the inner wall of the bearing sleeve 4 and the outer wall of the simulation shaft 2 in a matched manner, an annular retainer ring 12 protruding out of an inner hole of the bearing sleeve is arranged at the lower end of the bearing sleeve 4, and the outer ring of the inner bearing 5 is placed on the annular retainer ring 12. The upper end of the bearing sleeve 4 is provided with an annular disc 13, and connecting holes 14 are uniformly distributed on the annular disc 13 and are used for connecting the baffle ring 9.

Fig. 1, 2 and 6 show that an inner ring retainer 6 and an outer ring retainer 7 are placed between the inner bearing 5 and the outer bearing 8, the inner ring retainer 6 and the outer ring retainer 7 being opposed to the inner ring and the outer ring of the inner bearing 5 and the outer bearing 8, respectively, the inner ring retainer 6 and the outer ring retainer 7 isolating the inner bearing 5 and the outer bearing 8.

Fig. 1, 2, 7 and 8 show that a baffle ring 9 is placed at the upper end of the bearing sleeve 4, an annular bulge 17 is arranged on the lower surface of the baffle ring 9 and is pressed on the top surface of the outer ring of the outer bearing 8, baffle ring fixing holes 15 are formed in the circumference of the baffle ring 9 and correspond to connecting holes 14 of an annular disc 13 of the bearing sleeve 4, and connecting bolts 16 connect the baffle ring 9 with the bearing sleeve 4 through the baffle ring fixing holes 15 and the connecting holes 14.

Fig. 1 and 2 show that the upper circumference of the analog shaft 2 is provided with threads 11, the upper part of the analog shaft 2 extends out of the baffle ring 9, the inner wall of the sleeve 10 is provided with threads matched with the circumferential threads 11 of the analog shaft 2, the sleeve 10 is sleeved on the upper part of the analog shaft 2 through threads, and the lower end of the sleeve 10 is propped against the inner ring of the outer side bearing 8 on the analog shaft 2.

FIG. 3 shows the use of the utility model as follows:

The simulation shaft 2 is welded on the bottom plate 1, and the positioning baffle ring 3 is sleeved into the simulation shaft 2 after the simulation shaft 2 is placed;

Then the bearing sleeve 4 is sleeved into the simulation shaft 2 and is propped up by a cushion block;

the inner bearing 5 is installed in place, the inner ring retainer 6 and the outer ring retainer 7 are installed, and then the outer bearing 8 is installed;

Then the baffle ring 9 is placed above the bearing sleeve 4, the baffle ring 9 is connected with the bearing sleeve 4 by using the connecting bolts 16, and the connecting bolts 16 are fastened diagonally;

Screwing a sleeve 10 on the upper part of the simulation shaft 2 through threads, fixedly pressing the sleeve 10 against the inner ring of the outer bearing 8, completing installation immediately, and removing the cushion block;

After the installation is completed, the dial indicator base of the dial indicator 18 is fixed on the top surface of the analog shaft 2, the dial indicator pointer is propped against the exposed lateral surface part of the outer ring of the outer bearing 8, the dial indicator 18 is zeroed, the analog shaft 2 is fixed, and the bearing channeling value is obtained by moving a fixture for fixing the bearing part up and down.

One embodiment of the utility model is as follows:

The bottom plate 1 is a square steel plate, the side length is 400mm, and the thickness is 10mm;

the outer diameter of the upper part of the step of the simulation shaft 2 is 130mm, the length is 190mm, and the length of the upper thread is 30mm;

the outer diameter of the positioning baffle ring 3 is 142mm, the diameter of the inner hole is 130mm, and the length is 67.5mm;

The outer diameter of the bearing sleeve 4 is 270mm, the inner hole diameter is 230mm, the inner hole diameter of the annular retainer ring 12 is 218mm, the outer diameter of the annular disc 13 is 330mm, and the height is 98mm;

The inner hole diameter of the inner ring retainer ring 6 is 130mm, the outer diameter is 142mm, and the length is 21mm;

the inner hole diameter of the outer ring retainer ring 7 is 218mm, the outer diameter is 230mm, and the length is 13.5mm;

The outer diameter of the baffle ring 9 is 330mm, the diameter of the inner hole is 218mm, the thickness is 10mm, and the height of the annular protrusion 17 is 6.5mm.

The inner hole of the sleeve 10 has the diameter of 130mm, the outer diameter of 142mm and the length of 20mm;

the measured bearing is a tapered roller bearing, and the model is 30226.

Claims (2)

1. The utility model provides a instrument of analog measurement speed reducer axial play volume under line which characterized in that: the device comprises a bottom plate (1), a simulation shaft (2), a positioning baffle ring (3), a bearing sleeve (4), an inner ring retainer ring (6), an outer ring retainer ring (7), a baffle ring (9) and a sleeve (10), wherein the bottom plate (1) is horizontally arranged, the lower end of the simulation shaft (2) is fixedly connected to the surface of the bottom plate (1), the simulation shaft (2) is a stepped shaft, the upper diameter of the simulation shaft (2) is the same as the shaft diameter of a speed reducer shaft mounting bearing, the positioning baffle ring (3) is sleeved above the step of the simulation shaft (2), the inner diameter of the positioning baffle ring (3) is matched with the diameter of the simulation shaft (2), the bearing sleeve (4) is sleeved on the simulation shaft (2) above the positioning baffle ring, the inner diameter of the bearing sleeve (4) is matched with the outer diameter of the speed reducer bearing, the inner bearing (5) and the outer bearing sleeve (8) of the speed reducer shaft are sequentially arranged in the bearing sleeve (4), the outer ring and the inner ring of the outer bearing (5) and the inner ring retainer ring (8) are respectively connected with the inner wall of the bearing (4) and the outer ring (2) of the simulation shaft, the inner ring (5) and the inner ring retainer ring (7) and the outer ring (8) are respectively arranged between the inner bearing (5) and the outer ring (7) and the outer ring (8) and the outer ring retainer ring (8) and the outer ring (7) respectively, the upper end of the bearing sleeve (4) is provided with a baffle ring (9), the lower surface of the baffle ring (9) is provided with an annular bulge (17) which is opposite to the top surface of the outer ring of the outer bearing (8), the circumference of the baffle ring (9) is connected with the circumference of the bearing sleeve (4) through a connecting bolt (16), the circumference of the upper part of the simulation shaft (2) is provided with a thread (11), the upper part of the simulation shaft (2) extends out of the inner hole of the baffle ring (9), the inner wall of the sleeve (10) is provided with a thread which is matched with the circumferential thread (11) of the simulation shaft (2), the sleeve (10) is sleeved on the upper part of the simulation shaft (2) through the thread, and the lower end of the sleeve (10) is propped against the inner ring of the outer bearing (8) on the simulation shaft (2).

2. The tool for measuring axial runout of a speed reducer in an off-line simulation manner according to claim 1, wherein: the lower extreme of bearing housing (4) has annular retaining ring (12) of salient bearing housing hole, and the outer lane of inboard bearing (5) is placed on annular retaining ring (12), and there is annular disc (13) the upper end of bearing housing (4), and the equipartition has connecting hole (14) on annular disc (13), and the fender ring (9) circumference of bearing housing (4) upper end has fender ring fixed orifices (15) to correspond with connecting hole (14) of annular disc (13) of bearing housing (4), and connecting bolt (16) are connected fender ring (9) and bearing housing (4) through fender ring fixed orifices (15) and connecting hole (14).