CN219121294U

CN219121294U - Impeller inner hole and excircle axiality detection device

Info

Publication number: CN219121294U
Application number: CN202223200123.9U
Authority: CN
Inventors: 包志刚
Original assignee: Dolz Auto Parts Suzhou Co Ltd
Current assignee: Dolz Auto Parts Suzhou Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-06-02
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses an impeller inner hole and excircle coaxiality detection device which comprises a base, a ring seat, a plurality of sliding blocks, guide pins, a large gear and an upper cover, wherein the ring seat is detachably arranged at the top of the base; the bottom of upper cover sets up the center pin that passes the gear wheel and arrange along its axis direction, be provided with the guide way that corresponds with the guide pin on the gear wheel, a plurality of guide ways are spiral centripetal arrangement in gear wheel circumference. The utility model realizes coaxiality detection of impellers applicable to various diameter specifications, is convenient and quick to detect and has lower manufacturing cost.

Description

Impeller inner hole and excircle axiality detection device

Technical Field

The utility model belongs to the technical field of impeller detection, and particularly relates to an impeller inner hole and outer circle coaxiality detection device.

Background

After the impeller for the water pump is produced and manufactured, coaxiality of an inner hole and an outer circle of the impeller is required to be detected, and different special detection tools are conventionally manufactured aiming at different impellers, or a three-coordinate measuring machine is adopted for measurement. The cost for manufacturing different special inspection tools is high. If the coaxiality of the inner hole of the impeller and the outer circle of the impeller is not qualified, the performance test of the water pump is not qualified, and therefore, a device which has a simple structure and can rapidly detect the coaxiality of the inner hole of the impeller and the outer circle of the impeller is needed.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides the device for detecting the coaxiality of the inner hole and the outer circle of the impeller, so that coaxiality detection of the impeller applicable to various diameter specifications is realized, the detection is convenient and quick, and the manufacturing cost is low. In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the impeller inner hole and excircle coaxiality detection device comprises a base, a ring seat, a plurality of sliding blocks, guide pins, a large gear and an upper cover, wherein the ring seat is detachably arranged at the top of the base, the sliding blocks are arranged in a sliding centripetal manner and are embedded into the surface of the ring seat, the guide pins are arranged at the top of the sliding blocks, the large gear is arranged above the ring seat and is coaxially arranged with the ring seat, and the upper cover is detachably arranged above the base and is positioned above the large gear; the bottom of upper cover sets up the center pin that passes the gear wheel and arrange along its axis direction, be provided with the guide way that corresponds with the guide pin on the gear wheel, a plurality of guide ways are spiral centripetal arrangement in gear wheel circumference.

Specifically, the side of base is provided with the pinion that matches with the gear wheel meshing.

Specifically, the pinion is connected with a driving piece for driving the pinion to rotate, and the driving piece penetrates through the pinion and is connected to the base.

Specifically, the top of base is located the outside circumference of ring seat and is provided with the track groove, the bottom of gear wheel is provided with a plurality of track pins that extend into the track groove.

Specifically, the circumference of ring seat is provided with the spout of holding slider, the spout setting is extended respectively at the both ends of slider, the inner end of slider is provided with the tip, place the impeller in the hole of ring seat, tip and the excircle of impeller are supported and are contacted.

Specifically, the diameter size of impeller is less than the hole diameter of ring seat.

Specifically, a plurality of support columns used for positioning the upper cover are arranged on the circumference of the base, and the upper cover and the base are arranged in parallel relatively.

Specifically, the bottom end of the central shaft extends to be arranged close to the surface of the impeller.

Compared with the prior art, the impeller inner hole and excircle coaxiality detection device has the following main beneficial effects:

the structure of the matching of the pinion and the large gear and the structure of the matching of the track groove and the track pin are utilized, so that the large gear has the characteristic of stable and smooth rotation, a plurality of sliding blocks can move along the guide groove synchronously and smoothly, the sliding blocks can stably abut against the outer circumference of the impeller, the moving error of the sliding blocks is reduced, and the coaxial arrangement of the large gear and the outer circumference of the impeller is ensured; the upper cover is provided with a central shaft which is always kept on the same axis with the ring seat and the large gear, and the central shaft is used as an axis reference for the excircle of the impeller, so that whether the coaxiality of the inner hole of the impeller and the excircle of the impeller is qualified can be rapidly judged; the whole device has simple structure, does not need a complex driving connection mode, reduces the manufacturing cost and can also realize the rapid detection of the impeller.

Drawings

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

FIG. 2 is a schematic view of the structure of the embodiment with the upper cover removed;

FIG. 3 is a schematic view of the structure of the embodiment with the large gear removed;

the figures represent the numbers:

1 base, 11 track groove, 12 support column, 2 ring seat, 3 slider, 31 guide pin, 32 spout, 33 tip, 4 big gear, 41 guide groove, 42 track pin, 43 dodge hole, 5 upper cover, 51 center pin, 6 pinion, 61 rotation handle, 7 impeller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, but is apparent to those skilled in the art in view of the present utility model.

Examples:

referring to fig. 1-3, the present embodiment is an apparatus for detecting coaxiality of an inner hole and an outer circle of an impeller, comprising a base 1, a ring seat 2 detachably arranged on the top of the base 1, a plurality of sliding blocks 3 arranged in a sliding centripetal manner and embedded in the surface of the ring seat 2, a guide pin 31 arranged on the top of the sliding blocks 3, a large gear 4 arranged above the ring seat 2 and coaxially arranged with the ring seat 2, and an upper cover 5 detachably arranged above the base 1 and positioned above the large gear 4; the bottom of the upper cover 5 is provided with a central shaft 51 passing through the large gear 4 and arranged along the axial direction thereof, the large gear 4 is provided with guide grooves 41 corresponding to the guide pins 31, and a plurality of guide grooves 41 are arranged in the circumferential direction of the large gear 4 in a spiral centripetal manner.

In this embodiment, the base 1 is a plate structure, the side edge of the base 1 is provided with a pinion 6 meshed and matched with the large gear 4, the pinion 6 is a driving tooth, the pinion 6 is connected with a driving piece for driving the pinion to rotate, the driving piece is a rotary handle 61, the driving piece penetrates through the pinion 6 and is connected to the base 1, and the pinion 6 is rotated by rotating the rotary handle 61, so that the large gear 4 is driven to rotate. Accordingly, to enhance the smoothness and automatic driving of the linkage of the pinion 6 and the bull gear 4, the driving member may be provided as other conventionally driven rotating components, such as a motor.

In order to improve the rotating stability of the large gear 4, the track groove 11 is formed in the outer circumference of the ring seat 2 at the top of the base 1, a plurality of track pins 42 extending into the track groove 11 are arranged at the bottom of the large gear 4, and when the large gear 4 rotates, the plurality of track pins 42 rotate circumferentially along the track groove 11, and the track pins 42 have a supporting effect on the large gear 4 and can effectively guide the large gear 4 to do circular motion so as to prevent the large gear 4 from rotating and tilting.

The ring seat 2 is fixedly connected with the base 1 through screws, a sliding groove 32 for accommodating the sliding block 3 is formed in the circumferential direction of the ring seat 2, two ends of the sliding block 3 extend out of the sliding groove 32 respectively, a sharp head part 33 is arranged at the inner end of the sliding block 3, and the sharp head part 33 is in abutting contact with the outer circle of the impeller 7. When the impeller 7 is required to be detected, the impeller 7 is placed in the inner hole of the ring seat 2, the large gear 4 rotates to drive the guide pins 31 to move along the guide grooves 41, the slide blocks 3 are centripetally polymerized and contact with the outer circle of the impeller 7, the diameter of the impeller 7 is smaller than the diameter of the inner hole of the ring seat 2, the impeller 7 can be easily placed in the inner hole of the ring seat 2, and the large gear 4 and the ring seat 2 and the outer circle of the impeller 7 are always kept in axial collineation through the linkage structure of the slide blocks 3 and the large gear 4.

The circumference of the base 1 is provided with a plurality of support columns 12 for positioning the upper cover 5, and the upper cover 5 and the base 1 are kept in a relatively parallel state. In order to facilitate the impeller 7 to be laterally installed in the inner hole of the ring seat 2, the upper cover 5 is provided with a semicircular structure. Correspondingly, in order to avoid the position of the central shaft 51, the large gear 4 is provided with the avoidance hole 43, so that the central shaft 51 can smoothly extend to the surface of the impeller 7, and the bottom end of the central shaft 51 extends to be close to the surface of the impeller 7.

When the embodiment is applied, the impeller 7 is applied to the water pump, the inner hole of the impeller 7 is selected to have a certain general range according to the model of the water pump, and the central shaft 51 with a proper diameter size is selected to be tested in an adaptive manner; the impeller 7 is placed into the inner hole of the ring seat 2 from the side surface of the upper cover 5, the pinion 6 is rotated to drive the large gear 4 to rotate, the plurality of sliding blocks 3 move centripetally along with the large gear 4, the plurality of sliding blocks 3 clamp the outer circle of the impeller 7, and at the moment, if the central shaft 51 is completely overlapped with the inner hole of the impeller 7, the coaxiality of the inner hole of the impeller 7 and the outer circle of the inner hole is qualified, otherwise, the coaxiality is disqualified.

In the embodiment, the structure of matching the pinion 6 with the large gear 4 and the structure of matching the track groove 11 with the track pin 42 are utilized, so that the large gear 4 has the characteristic of stable and smooth rotation, a plurality of sliding blocks 3 can move along the guide groove 41 synchronously and smoothly, the sliding blocks can stably abut against the outer circumference of the impeller 7, the moving error of the sliding blocks 3 is reduced, and the coaxial arrangement of the large gear 4 and the outer circumference of the impeller 7 is ensured; the upper cover 5 is provided with the central shaft 51, the central shaft 51 always keeps the same axis with the ring seat 2 and the large gear 4, the central shaft 51 is used as the axis reference for the excircle of the impeller 7, and whether the coaxiality of the inner hole of the impeller 7 and the excircle of the impeller 7 is qualified can be rapidly judged; the whole device has simple structure, does not need a complex driving connection mode, reduces the manufacturing cost and can also realize the rapid detection of the impeller 7.

In the description of the present utility model, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present utility model are described above, the embodiments are only used for facilitating understanding of the present utility model, and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is to be determined by the appended claims.

Claims

1. Impeller hole and excircle axiality detection device, its characterized in that: the device comprises a base, a ring seat, a plurality of sliding blocks, guide pins, a large gear and an upper cover, wherein the ring seat is detachably arranged at the top of the base, the sliding blocks are arranged in a sliding centripetal manner and are embedded into the surface of the ring seat, the guide pins are arranged at the top of the sliding blocks, the large gear is arranged above the ring seat and is coaxially arranged with the ring seat, and the upper cover is detachably arranged above the base and is positioned above the large gear; the bottom of upper cover sets up the center pin that passes the gear wheel and arrange along its axis direction, be provided with the guide way that corresponds with the guide pin on the gear wheel, a plurality of guide ways are spiral centripetal arrangement in gear wheel circumference.

2. The impeller inner bore and outer circle coaxiality detection device according to claim 1, wherein: the side of base is provided with the pinion that matches with the gear wheel meshing.

3. The impeller inner bore and outer circle coaxiality detection device according to claim 2, wherein: the pinion is connected with a driving piece for driving the pinion to rotate, and the driving piece penetrates through the pinion and is connected to the base.

4. The impeller inner bore and outer circle coaxiality detection device according to claim 1, wherein: the top of base is located the outside circumference of ring seat and is provided with the track groove, the bottom of gear wheel is provided with a plurality of track pins that extend into the track groove.

5. The impeller inner bore and outer circle coaxiality detection device according to claim 1, wherein: the sliding groove for accommodating the sliding block is formed in the circumferential direction of the ring seat, the sliding grooves are formed in the two ends of the sliding block in an extending mode, the pointed portion is arranged at the inner end of the sliding block, the impeller is placed in the inner hole of the ring seat, and the pointed portion is in abutting contact with the outer circle of the impeller.

6. The impeller inner bore and outer circle coaxiality detection device according to claim 5, wherein: the diameter size of the impeller is smaller than the diameter of the inner hole of the ring seat.

7. The impeller inner bore and outer circle coaxiality detection device according to claim 1, wherein: the circumference of base is provided with a plurality of support columns that are used for fixing a position the upper cover, the upper cover sets up with the base relatively parallel.

8. The impeller inner bore and outer circle coaxiality detection device according to claim 5, wherein: the bottom end of the central shaft extends to be close to the surface of the impeller.