CN201811745U

CN201811745U - Rotation angle transmission measuring device

Info

Publication number: CN201811745U
Application number: CN2010205393080U
Authority: CN
Inventors: 陆超群; 赵明达; 祁海波; 李石磊; 高鹏斌
Original assignee: Mesnac Co Ltd
Current assignee: Mesnac Co Ltd
Priority date: 2010-09-16
Filing date: 2010-09-16
Publication date: 2011-04-27
Anticipated expiration: 2020-09-16

Abstract

The utility model relates to a rotation angle transmission measuring device which adopts two groups of gear sets transmission measuring method to realize a measuring device and process capable of accurately transmitting rotation directions and angles. By means of the transmission of rotation angles and directions between gears, the accuracy of the measurement of angles between two relative rotating components is improved. The rotation angle transmission measuring device is connected between a rotator and a seat, wherein a first gear is mounted on the rotator, the first gear is engaged with and is connected with a gear set which is sheathed at one side end of a rotation shaft, a rotary encoder for detecting the rotation angle of the rotator is connected to the other side end of the rotation shaft by a coupling, the rotary encoder is mounted on the seat, the gear set comprises at least two gears which are coaxially connected with each other, and the axial lines of the gears are staggered at a certain angle.

Description

The anglec of rotation is transmitted measurement mechanism

Technical field

The utility model relates to a kind of anglec of rotation and transmits measurement mechanism, is applied to 2 the sense of rotation between the relative rotary part, the measurement of angle take place, and belongs to machinery and production automation control field.

Background technology

Along with the development and the widespread use of electromechanical equipment detection technique, the requirement of the angle-measurement accuracy between rotation or 2 parts of rotation is also more and more higher relatively.Usually rotation angle measurement accurately whether, concerning degree of controllability, the feasibility of precise part installation, measurement and operation result.

Present rotation angle measurement adopts rotary encoder usually, by 2 photosignals that produce when relatively being staggeredly located between rotation or the rotation parts and then quantize to feed back with data.Than equipment big and that rotation angle measurement is comparatively accurate, at ends rotary encoder is installed for volume simply, under the bigger prerequisite of moment of torsion, both had been easy to cause the damage of rotary encoder, be unfavorable for that again the transmission of the anglec of rotation is measured with accurate.

The utility model content

The anglec of rotation described in the utility model is transmitted measurement mechanism, is to solve the problem that above-mentioned prior art exists and adopts 2 groups of gear sets to carry out the transmission measuring method, to realize the measurement mechanism and the technology of accurate transfer sense of rotation and angle.

Purpose of design of the present utility model is that the transmission of the anglec of rotation and direction between the employing gear improves 2 angle-measurement accuracies that take place between the relative rotary part.

Another purpose of design is, improves at structures such as being in transmission connection of rotary encoder, installing and locating, and improving the measurement stability of rotary encoder, the protection rotary encoder is injury-free, prolong its serviceable life.

For realizing above-mentioned purpose of design, the described anglec of rotation is transmitted measurement mechanism and is connected between rotary body and the seat, mainly includes:

First gear is installed on rotary body, and first gearing mesh is connected in the gear set that is set in a turning axle side,

Another side of turning axle connects a rotary encoder that is used to detect the rotary body anglec of rotation by shaft coupling, and rotary encoder is installed on seat,

Gear set includes stagger the mutually gear of certain angle of at least 2 mutual coaxial connections, Gear axis.

As above-mentioned basic scheme, when rotary body was rotated with respect to seat, rotary body drove first gear and is rotated with equidirectional, equal angular around its axis.

First gear is delivered to gear set by tooth mesh with the anglec of rotation, gear set is delivered to rotary encoder with sense of rotation, angle by turning axle, shaft coupling, detects by photosignal and calculates the sense of rotation of rotary body reality, rotation angle value accurately.

Including at least 2 gears in the gear set, mainly is at after the long-time measuring operation, and first gear and gear set middle gear axis the gap occurs through wearing and tearing mutually, then directly have influence on the accurate transfer of the final anglec of rotation.

Stagger the mutually gear of certain angle of 2 coaxial connections, Gear axis can remedy the measuring error problem of bringing in above-mentioned gap preferably.

The problem that further needs consideration and solve is, under conditions such as the wearing and tearing between the long-time time backgear or the bearing accuracy after the Installation and Debugging decrease, in the gear set between 2 gears the gap of Gear axis correspondingly change, for satisfying the problem of dynamically adjusting the Gear axis gap, can adopt the improvement project of location structure between following 2 gears:

Described gear set includes second gear, the 3rd gear of coaxial connection,

Equidistantly be provided with on second gear, several the 3rd gears and being used to of being used to be spirally connected are regulated stagger the mutually long arc shape slotted eye of certain angle of Gear axis with the 3rd gear.

When needs are regulated the gap that changes Gear axis, the screw of 2 gears can be unclamped, angle along mutual alignment between 2 gears of circumferential adjusting of long arc shape slotted eye, the gear teeth of promptly adjusting 2 gears certain angle that relatively staggers, thus gap between the gear teeth of the gear set and first gear eliminated.

After adjustment finishes, again with the fastening precision of screw to realize guaranteeing that the angle transmission is measured between the gear set.

Be the right alignment that guarantees further to locate between the gear set middle gear, can be provided with by second gear, be used for annular boss with the coaxial socket of the 3rd gear.

Optimize more that rotary encoder is in transmission connection, the measure of installing and locating performance is, in the support of Connection Block, rotary encoder is installed on support by erecting frame to described turning axle by outside sheathed Bearing Installation.

Content to sum up, the utility model anglec of rotation are transmitted the advantage that measurement mechanism has:

1, the transmission of adopting 2 groups of gear sets to be rotated angle is measured, and can realize the measurement mechanism and the technology of accurate transfer sense of rotation and angle.

2, the transmission of the anglec of rotation and direction between the employing gear can improve 2 angle-measurement accuracies that take place between the relative rotary part.

3, improve performances such as being in transmission connection of rotary encoder, installing and locating, helped prolonging the serviceable life of rotary encoder.

Description of drawings

Now in conjunction with the accompanying drawings the utility model is described further.

Fig. 1 is the structural representation that the described anglec of rotation is transmitted measurement mechanism;

Fig. 2 is the I portion enlarged diagram among Fig. 1;

Fig. 3 is the structural representation of described second gear;

Fig. 4 is the structural representation of described the 3rd gear;

Fig. 5 is the contrast synoptic diagram before and after 2 Gear axis gaps are adjusted;

Extremely shown in Figure 5 as Fig. 1, rotary body 1, seat 2, support 3, the first gears 10, gear set 11, the second gears 12, the 3rd gear 13, long arc shape slotted eye 14, annular boss 15,

Turning axle 20, shaft coupling 21, rotary encoder 22, bearing 23, erecting frame 24.

Embodiment

Embodiment 1, and to shown in Figure 5, the described anglec of rotation is transmitted measurement mechanism as Fig. 1, is connected between rotary body 1 and the seat 2.Particularly,

First gear, 10, the first gears 10 are installed on rotary body 1 to be connected with a joggle in the gear set 11 that is set in a turning axle 20 sides.

Gear set 11 includes at least 2 mutual coaxial connections, Gear axis stagger mutually second gear 12 and the 3rd gear 13 of certain angle.

Equidistantly be provided with on second gear 12,4 the 3rd gears 13 and being used to of being used to be spirally connected are regulated stagger the mutually long arc shape slotted eye 14 of certain angle of Gear axis with the 3rd gear 13.

Second gear 12 is provided with, and is used for the annular boss 15 with the 13 coaxial sockets of the 3rd gear.

Equidistantly be provided with 4 screws that are used to be screwed onto on second gear 12 on the 3rd gear 13.

Another side of turning axle 20 connects a rotary encoder 22 that is used to detect rotary body 1 anglec of rotation by shaft coupling 21.

Turning axle 20 is installed on the support 3 of Connection Block 2 by the sheathed bearing 23 in outside, and rotary encoder 22 is installed on support 3 by erecting frame 24.

In concrete measuring process, in the time of rotary body 1 rotation, sense of rotation and angle are passed to gear set 11 by first gear 10.

Gear set 11 includes stagger the mutually gear of certain angle of at least 2 mutual coaxial connections, Gear axis, and the turning axle 20 that is set on the gear set 11 is rotated with identical sense of rotation and angle.

The sense of rotation and the angle of turning axle 20 measured and fed back to the rotary encoder 22 that is installed on seat 2.

When the Gear axis of second gear 12 in the gear set 11 and the 3rd gear 13 bigger gap occurs and when having influence on angle-measurement accuracy, unclamp mounting screw, circumferentially rotate the 3rd gear 13 along long arc shape slotted eye 14, to change direction and the angle that Gear axis staggers mutually between 2 gears.

In addition, annular boss 15, the second gears 12 and the 3rd gear 13 socket coaxially by being provided with on second gear 12.

Claims

1. an anglec of rotation is transmitted measurement mechanism, be connected between rotary body (1) and the seat (2), it is characterized in that: go up at rotary body (1) first gear (10) is installed, first gear (10) is connected with a joggle in the gear set (11) that is set in a turning axle (20) side

Another side of turning axle (20) connects a rotary encoder (22) that is used to detect rotary body (1) anglec of rotation by shaft coupling (21), and rotary encoder (22) is installed on seat (2),

Gear set (11) includes stagger the mutually gear of certain angle of at least 2 mutual coaxial connections, Gear axis.

2. the anglec of rotation according to claim 1 is transmitted measurement mechanism, and it is characterized in that: gear set (11) includes second gear (12), the 3rd gear (13) of coaxial connection,

Equidistantly be provided with on second gear (12), several the 3rd gears (13) and being used for of being used to be spirally connected are regulated stagger the mutually long arc shape slotted eye (14) of certain angle of Gear axis with the 3rd gear (13).

3. the anglec of rotation according to claim 2 is transmitted measurement mechanism, and it is characterized in that: second gear (12) is provided with, and is used for the annular boss (15) with the coaxial socket of the 3rd gear (13).

4. transmit measurement mechanisms according to claim 1, the 2 or 3 described anglecs of rotation, it is characterized in that: described turning axle (20) is installed on the support (3) of Connection Block (2) by the sheathed bearing in outside (23);

Rotary encoder (22) is installed on support (3) by erecting frame (24).