CN214200489U

CN214200489U - Special testing arrangement of calibrated scale static balance

Info

Publication number: CN214200489U
Application number: CN202023222244.4U
Authority: CN
Inventors: 俄嘉; 宋延林; 王培科; 李成华
Original assignee: Lanzhou Flight Control Co Ltd
Current assignee: Lanzhou Flight Control Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-09-14
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a special testing arrangement of calibrated scale static balance belongs to ordinary mechanical assembly field. The utility model provides a calibrated scale of rotatory type steering wheel product tester when processing or repairing the completion and check, the calibrated scale does not have dedicated static balance check-up frock, the problem of the static balance check-up work of unable completion calibrated scale, including the chuck, the screw, the bearing frame, the end cover, an integral unit of output shaft assembly, step up the chuck position on the vice during use, make the device be in unsettled state, will be surveyed the calibrated scale again and install in the interface position of output shaft, guarantee that the couple at calibrated scale both ends is flagging naturally, no other exogenic action, zero-bit groove and the contained angle of water flat line according to the calibrated scale, judge whether the calibrated scale satisfies the product test demand, and convenient for operation, show directly perceived, to personnel, equipment and environment do not have special requirement.

Description

Special testing arrangement of calibrated scale static balance

Technical Field

The utility model relates to a special testing arrangement of calibrated scale static balance belongs to ordinary mechanical assembly field.

Background

When the dial of the conventional rotary steering engine product tester is processed or repaired to be checked, the dial is not provided with a special static balance checking tool, and the static balance checking work of the dial cannot be finished. The testing precision and accuracy of the tested product are greatly influenced by the good and bad static balance of the dial of the tester, so that the testing device can well solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the special testing device for the static balance of the dial is provided, the calibration work before the dial is used is completed, the self balance degree of the dial is ensured, and the testing precision of the performance test of the rotary steering engine is improved.

The technical scheme of the utility model is that:

the utility model provides a special testing arrangement of calibrated scale static balance, includes chuck (1), bearing (3), bearing frame (4), end cover (5), output shaft (6), bearing frame (4) be cavity both ends open-ended structure, its one end is the flange end, the other end is the end cover link, flange end and the flange joint of chuck (1), end cover (5) set up the end cover link at bearing frame (4), output shaft (6) set up inside bearing frame (4) to support through bearing (3), the tip of output shaft (6) pass the through-hole on end cover (5), output shaft (6) tip be provided with the spline for with the keyway cooperation of being surveyed the calibrated scale.

Furthermore, the flange end of the bearing seat (4) is connected with the flange of the chuck (1) through a screw (2).

Furthermore, the end cover (5) is fixed at the end cover connecting end of the bearing seat (4) through a screw (2).

Furthermore, the chuck (1) is connected with an external vice (7).

Furthermore, annular bulges are arranged on the inner sides of the flange of the chuck (1) and the end cover (5) and used for fixing the outer ring of the bearing (3).

Further, the bearing (3) is a deep groove ball bearing.

Furthermore, the chuck (1) is a solid metal square block and has certain pressure bearing capacity.

Furthermore, shaft shoulders are arranged at two ends of the output shaft (6), and bearing inner rings are fixed on the shaft shoulders at the two ends of the output shaft (6).

The utility model has the advantages that: the utility model provides a special testing arrangement of calibrated scale static balance, simple structure, convenient operation shows directly perceivedly, does not have special requirement to personnel, equipment and environment, through the utility model provides a when the calibrated scale of the rotatory type steering wheel product tester of our factory was processed or is reprocessed and accomplish and check, the calibrated scale does not have dedicated static balance check-up frock, can't accomplish the problem of the static balance check-up work of calibrated scale. The calibration work before the dial is used is completed, the self balance degree of the dial is ensured, and the testing precision of the performance test of the rotary steering engine is improved.

Drawings

FIG. 1 is a schematic structural diagram of a dial static balance testing device;

FIG. 2 is a schematic structural diagram of an output shaft of the dial static balance testing device;

FIG. 3 is a schematic view of an output shaft end of the dial static balance testing device;

FIG. 4 is a schematic diagram of a chuck structure of the dial static balance testing device;

fig. 5 is a schematic structural diagram of a bearing seat of the dial static balance testing device.

FIG. 6 is a schematic view of a testing example of the dial static balance testing device;

the device comprises a clamp 1, a clamp head 2, a screw 3, a bearing 4, a bearing seat 5, an end cover 6, an output shaft 7, a vice 8 and a dial joint.

Detailed Description

The utility model discloses a first embodiment:

the special testing device for the static balance of the dial comprises a vice 1, a bearing 3, a bearing seat 4, an end cover 5, an output shaft 6 and the dial. One end of the chuck 1 is solid square metal and has certain bearing capacity, the other end of the chuck is a flange end, the bearing seat 4 is an integral bearing seat with a flange end, the end part of the output shaft 6 is a spline, shaft shoulders are designed at two ends of the output shaft 6, the output shaft 6 and the bearing 3 are installed in the bearing seat 4, and the inner rings of the bearing 3 are fixed by the two shaft shoulders of the output shaft 6; the outer rings of the bearings 3 at two ends are respectively fixed through a flange at one end of the chuck 1 and an end cover 5, and are fixed into an integral component through screws 2.

The chuck 1 is fastened on a vice 7 to enable the device to be in a suspended state, then the measured dial is mounted at the end part of an output shaft 6 through a dial joint 8 and fixed through the dial joint 8, hooks at two ends of the dial naturally droop without other external force action when the level of the zero-position reticle of the dial is guaranteed, and whether the dial is qualified or not is judged according to the included angle between the zero-position reticle of the dial and the horizontal line and in combination with technical requirements.

One end of the bearing seat is a flange end with 4 threaded holes, and a flange of the chuck 1 is fixed on the flange end of the bearing seat 4 through four threaded holes on the bearing seat 4 by screws 2. The other end of the bearing seat 4 is an end cover connecting end 5, four threaded holes are uniformly distributed in the end cover connecting end 5, and the end cover 5 is fixed on the end cover connecting end of the bearing seat 2 through the four threaded holes by four countersunk head screws 2.

The inner sides of the flange and the end cover 5 of the chuck 1 are both provided with an outer ring of a fixed bearing 3 with an annular protruding part;

shaft shoulders are designed at two ends of the output shaft 6 and used for installing and fixing the inner ring of the bearing 3, an output interface of the output shaft 6 is consistent with the dial joint 8, and the dial is installed on the testing device through the dial joint 8.

The bearing 3 adopts a deep groove ball bearing, the bearing 3 has simple structure and convenient use, and is mainly used for bearing radial load and also can bear certain axial load. When the radial play of the bearing 3 is increased, the function of the angular contact bearing 3 is provided. Such a bearing 3 has a small friction factor compared to other bearing types 3 of the same size. Comprehensively considering, selecting a deep groove ball bearing, the model is as follows: 6001. the inner ring of the bearing 3 is arranged at two sides of the output shaft 6, and the working characteristics of short action time and almost no thermal expansion are considered. The bearing 3 adopts a structure with two fixed ends, and the bearing seat is assembled on the outer ring. The bearing 3 and the output shaft 6 are matched in an h 7-level mode, and installation is convenient.

Shaft shoulders are designed at two ends of the output shaft 6, the output shaft 6 and the bearing 3 are installed in the bearing seat 4, inner rings of the bearing 3 are fixed by the shaft shoulders at the two ends of the output shaft 6, outer rings of the bearing 3 at the two ends are respectively fixed by a flange and an end cover 5 at one end of the chuck 1, and the whole assembly is fixed by screws 2. The chuck 1 is fastened on the vice 7 to enable the device to be in a suspended state, the dial to be measured is installed at the interface of the output shaft 6 and fixed through the dial joint 8, when the zero position scale line level of the dial is guaranteed, hands are loosened to enable hooks at two ends of the dial to naturally droop without other external force, and whether the dial is qualified or not is judged according to the included angle between the zero position scale line of the dial and the horizontal line and in combination with technical requirements.

The utility model discloses special testing arrangement of calibrated scale static balance's theory of operation is: the parts are assembled and combined into a whole according to the figure 6, and the output shaft 6 can flexibly rotate without clamping stagnation. The chuck 1 is fastened on a vice 7 to enable the device to be in a suspended state, then the measured dial is installed at the end part of an output shaft 6 and fixed through a dial joint 8, when the zero position scale line level of the dial is guaranteed, hands are loosened to enable hooks at two ends of the dial to naturally droop without other external force, and whether the dial is qualified or not is judged according to the included angle between the zero position scale line of the dial and the horizontal line and in combination with technical requirements. Adopt the utility model discloses afterwards, the loading calibrated scale of having solved the tester does not have dedicated static balance check-up frock, the problem that the loading calibrated scale is difficult to verify.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.

Claims

1. The utility model provides a special testing arrangement of calibrated scale static balance which characterized in that: including chuck (1), bearing (3), bearing frame (4), end cover (5), output shaft (6), bearing frame (4) be cavity both ends open-ended structure, its one end is the flange end, and the other end is the end cover link, the flange end with the flange joint of chuck (1), end cover (5) set up the end cover link at bearing frame (4), output shaft (6) set up inside bearing frame (4) to support through bearing (3), the tip of output shaft (6) pass the through-hole on end cover (5), output shaft (6) tip be provided with the spline for with the keyway cooperation of surveyed the calibrated scale.

2. The special testing device for the static balance of the dial according to claim 1, wherein: and the flange end of the bearing seat (4) is connected with the flange of the chuck (1) through a screw (2).

3. The special testing device for the static balance of the dial according to claim 1, wherein: the end cover (5) is fixed at the end cover connecting end of the bearing seat (4) through a screw (2).

4. The special testing device for the static balance of the dial according to claim 1, wherein: the chuck (1) is connected with an external vice (7).

5. The special testing device for the static balance of the dial according to claim 1, wherein: annular bulges are arranged on the inner sides of the flange of the chuck (1) and the end cover (5) and used for fixing the outer ring of the bearing (3).

6. The special testing device for the static balance of the dial according to claim 1, wherein: the bearing (3) is a deep groove ball bearing.

7. The special testing device for the static balance of the dial according to claim 1, wherein: the chuck (1) is a solid metal square block and has certain pressure bearing capacity.

8. The special testing device for the static balance of the dial according to claim 1, wherein: and shaft shoulders are arranged at two ends of the output shaft (6), and bearing inner rings are fixed on the shaft shoulders at the two ends of the output shaft (6).