CN105300409A

CN105300409A - Lining loading method

Info

Publication number: CN105300409A
Application number: CN201510736805.7A
Authority: CN
Inventors: 邢天骄; 吕英豪; 朱毅; 郭鑫
Original assignee: Beijing Automation Control Equipment Institute BACEI
Current assignee: Beijing Automation Control Equipment Institute BACEI
Priority date: 2015-11-03
Filing date: 2015-11-03
Publication date: 2016-02-03
Anticipated expiration: 2035-11-03
Also published as: CN105300409B

Abstract

The invention belongs to the technical field of shaft system loading of a power tuning gyroscope and particularly relates to a lining loading method which is applied to shaft system assembling of the power tuning gyroscope. Firstly, an upper bearing is mounted at the upper end of a driving shaft in a back-to-back installation manner and an inner ring of the upper bearing is fixed on the driving shaft; secondly, an outer ring lining sleeves the driving shaft and the end face of the outer ring lining is kept to be matched with an outer ring end face of the upper bearing, and a lower bearing is mounted in a back-to-back installation manner and the end face of the outer ring lining is kept to be matched with the outer ring end face of the lower bearing; meanwhile, a gap is formed between a shaft shoulder of the driving shaft and the inner ring of the lower bearing; and finally, a shaft system pre-tightening force loading module is arranged at the upper end of the inner ring of the lower bearing and a vertically-downward pre-tightening force is applied to the inner ring of the lower bearing; and the inner ring of the lower bearing is fixed on the driving shaft. According to the lining loading method, an outer ring of the bearing keeps leveled by using a lining loading manner and the pre-tightening force is accurately controlled after the shaft system assembling of the power tuning gyroscope; and the assembling precision is improved and the parallelism degree of the outer ring of the bearing is guaranteed.

Description

A kind of method that lining loads

Technical field

The invention belongs to dynamically tuned gyro, DTG axle system's loading technique field, be specifically related to a kind of method that lining loads, be applied in the assembling of dynamic tuned gyroscope axle system.

Background technology

At present, the precision instrument axle system that dynamically tuned gyro, DTG uses generally adopts location firmly beforehand means to be added with certain pretightning force to axle system.Require the preload force controllable precise of gyroaxis system, require the depth of parallelism of assembling rear bearing two outer shrouds simultaneously.

Traditional gyroaxis system load mode has two kinds, and the first adopts this bearing of spring to add certain and load, is then fixed on driving shaft by bearing inner ring with glue.The pretightning force that the method adds to axle system is relatively more accurate, but due to the depth of parallelism of spring end face poor, the depth of parallelism of installation rear bearing outer shroud end face can not be ensured.The second is the mode adopting lining to load, and is by regulating the height of lining to ensure the quantity that bearing loads.But the several micron of lining height control, will cause axle system pretightning force to alter a great deal.Accurate for ensureing the pretightning force that axle system adds, grinding adjustment must be carried out to the height of lining and repeatedly test pretightning force simultaneously, cause the assembled shaft system cycle long, be unfavorable for batch production.

Summary of the invention

For above-mentioned prior art, the object of the present invention is to provide a kind of method that lining loads, in order to achieve the above object, the present invention by the following technical solutions.

The method that a kind of lining of the present invention loads, be applied to the loading of dynamically tuned gyro, DTG axle system, dynamically tuned gyro, DTG axle system comprises head bearing, outer shroud lining, lower bearing, and the method comprises the following steps:

Step one, head bearing is arranged on driving shaft upper end with back-to-back Installation Modes, and by fixing for head bearing inner ring on the driving shaft;

Step 2, reversing driving shaft, outer shroud lining is sleeved on driving shaft, outer shroud bush end face is kept to coordinate with the cycle surface of head bearing, with back-to-back Installation Modes, lower bearing is installed, keep outer shroud bush end face to coordinate with the cycle surface of lower bearing, keep there is gap between the shaft shoulder of driving shaft and the inner ring of lower bearing simultaneously;

Step 3, support the inner ring of head bearing with bracing or strutting arrangement, the outer ring of head bearing is kept not contact when pressure-bearing with between bracing or strutting arrangement, in lower bearing inner ring upper end, axle system pretightning force load-on module is set, downward bearing inner race applies pretightning force vertically downward, is fixed on the driving shaft by lower bearing inner ring.

The fixing mode of glueing joint that adopts of described head bearing inner ring and lower bearing inner ring and driving shaft is fixed.

Described bonding mode uses epoxy glue, is the stability ensureing head bearing, fix between lower bearing and driving shaft, adopts the mode of cured epoxy glue to strengthen fixing stability.

Described bracing or strutting arrangement is bearing, and bearing upper end is columnar structured, coordinates with the driving shaft upper gap of axle system.

Axle system pretightning force load-on module stablizes the charger of lasting unidirectional force for providing, for axle system provides the pretightning force of different brackets.

Axle system pretightning force load-on module is the variable counterweight pressing block structure of weight.

The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:

The mode that the present invention utilizes lining to load ensures flushing of outer race, do not adopt simultaneously and regulate the method for lining height accurately to control pretightning force, after can realizing the assembling of dynamic tuned gyroscope axle system, pretightning force accurately controls, the shortcoming of pretightning force is not easily accurately controlled when avoiding grinding lining when original lining loads, achieve the raising of dynamic tuning gyroscope assembly precision, ensure the depth of parallelism of outer race simultaneously.

Accompanying drawing explanation

Fig. 1 uses the present invention to load embodiment dynamically tuned gyro, DTG axle system schematic diagram;

Fig. 2 is embodiment of the present invention dynamically tuned gyro, DTG axle system lower bearing assembling local A enlarged diagram;

Fig. 3 is embodiment of the present invention dynamically tuned gyro, DTG axle system schematic diagram;

In figure: 1-bearing; 2-axle system; 3-axle system pretightning force load-on module; 4-gap; 201-head bearing; 202-outer shroud lining; 203-lower bearing; 204-driving shaft.

Embodiment

Below in conjunction with the drawings and specific embodiments, the method that a kind of lining of the present invention loads is elaborated.

As depicted in figs. 1 and 2, dynamically tuned gyro, DTG axle system comprises head bearing 201, outer shroud lining 202, lower bearing 203, for the assembling of dynamically tuned gyro, DTG axle system, and comprising the following steps of the method that a kind of lining of the present invention loads:

Step one, head bearing 201 is arranged on driving shaft 204 upper end with back-to-back Installation Modes, to glued joint or other modes, head bearing 201 inner ring is fixed on driving shaft 204, splicing can use epoxy glue, for ensureing stability fixing between head bearing 201 and driving shaft 204, the mode of cured epoxy glue can be adopted to strengthen fixing stability;

Step 2, reversing driving shaft 204, outer shroud lining 202 is sleeved on driving shaft 204, outer shroud lining 202 end face is kept to coordinate with the cycle surface of head bearing 201, with back-to-back Installation Modes, lower bearing 203 is installed, keep outer shroud lining 202 end face to coordinate with the cycle surface of lower bearing 203, keep there is gap 4 between the shaft shoulder of driving shaft 204 and the inner ring of lower bearing 203 simultaneously;

Step 3, by the inner circle rack of head bearing 201 on bracing or strutting arrangement, the outer ring of head bearing 201 is kept not contact when pressure-bearing with between bracing or strutting arrangement, in lower bearing 203 inner ring upper end, axle system pretightning force load-on module 3 is set, to lower bearing 203 inner ring applying pretightning force vertically downward, to glued joint or other modes, lower bearing 203 inner ring is fixed on driving shaft 204, splicing can use epoxy glue, for ensureing stability fixing between lower bearing 203 and driving shaft 204, the mode of cured epoxy glue can be adopted to strengthen fixing stability.

Bracing or strutting arrangement is bearing 1, and bearing 1 upper end is columnar structured, coordinates with driving shaft 204 upper gap of axle system 2.

Axle system pretightning force load-on module 3 can be the variable counterweight pressing block of weight, and also can be to provide stable other chargers continuing unidirectional force, can provide the pretightning force of different brackets for axle system.

Claims

1. the method for a lining loading, be applied to the loading of dynamically tuned gyro, DTG axle system, dynamically tuned gyro, DTG axle system comprises head bearing (201), outer shroud lining (202), lower bearing (203), it is characterized in that: the method comprises the following steps:

Step one, head bearing (201) is arranged on driving shaft (204) upper end with back-to-back Installation Modes, and head bearing (201) inner ring is fixed on driving shaft (204);

Step 2, reversing driving shaft (204), outer shroud lining (202) is sleeved on driving shaft (204), outer shroud lining (202) end face is kept to coordinate with the cycle surface of head bearing (201), with back-to-back Installation Modes, lower bearing (203) is installed, keep outer shroud lining (202) end face to coordinate with the cycle surface of lower bearing (203), keep there is gap (4) between the inner ring of the shaft shoulder of driving shaft (204) and lower bearing (203) simultaneously;

Step 3, support the inner ring of head bearing (201) with bracing or strutting arrangement, the outer ring of head bearing (201) is kept not contact when pressure-bearing with between bracing or strutting arrangement, in lower bearing (203) inner ring upper end, axle system pretightning force load-on module (3) is set, to lower bearing (203) inner ring applying pretightning force vertically downward, lower bearing (203) inner ring is fixed on driving shaft (204).

2. the method for lining loading according to claim 1, is characterized in that: the fixing mode of glueing joint that adopts of described head bearing (201) inner ring and lower bearing (203) inner ring and driving shaft (204) is fixed.

3. the method for lining loading according to claim 2, it is characterized in that: described bonding mode uses epoxy glue, for the stability ensureing head bearing (201), fix between lower bearing (203) and driving shaft (204), the mode of cured epoxy glue is adopted to strengthen fixing stability.

4. the method for lining loading according to claim 1, it is characterized in that: described bracing or strutting arrangement is bearing (1), bearing (1) upper end is columnar structured, coordinates with driving shaft (204) upper gap of axle system (2).

5. the method for lining loading according to claim 1, is characterized in that: axle system pretightning force load-on module (3) stablizes the charger of lasting unidirectional force for providing, for axle system (2) provides the pretightning force of different brackets.

6. the method that loads of lining according to claim 5, is characterized in that: axle system pretightning force load-on module (3) is the variable counterweight pressing block structure of weight.