CN219015225U

CN219015225U - Detection device for measuring radial runout of crankshaft

Info

Publication number: CN219015225U
Application number: CN202123310953.2U
Authority: CN
Inventors: 周军; 陈爱国
Original assignee: Junmai Industrial Robot Shanghai Co ltd
Current assignee: Junmai Industrial Robot Shanghai Co ltd
Priority date: 2021-01-26
Filing date: 2021-12-27
Publication date: 2023-05-12
Anticipated expiration: 2031-12-27

Abstract

The utility model provides a detection device for measuring radial runout of a crankshaft, which comprises a bottom plate, a measurement unit, an optical sensor, a supporting seat, a main controller, a transmission system and a rotating body, wherein the rotating body is rotatably arranged on the bottom plate through the transmission system; the main controller is in control connection with the optical sensor and the rotating body, so that the optical sensor can measure radial runout data of the crankshaft when the measuring unit is controlled to rotate around the crankshaft. Therefore, a non-contact measurement mode is adopted to calculate and obtain a radial runout detection value of the crankshaft.

Description

Detection device for measuring radial runout of crankshaft

Technical Field

The utility model relates to the field of engines, in particular to a detection device for measuring radial runout of a crankshaft.

Background

The crankshaft is a core part of the engine, the radial runout difference of the main journal of the crankshaft can seriously affect the performance of the engine, the runout deviation can aggravate the abrasion of the journal and cause the damage of the bearing bush, and finally the part is invalid. The control of the jumping quality of the main journal of the crankshaft is important in the crankshaft processing process. At present, the universal detection is manually carried out by adopting a dial indicator, and the detection process is inconvenient to operate.

Disclosure of Invention

In order to solve the problems, the utility model provides a detection device for measuring radial runout of a crankshaft, which designs a manual crankshaft runout measurement tool into a non-contact automatic detection tool, and can achieve the purpose of rapid and accurate measurement.

The utility model provides a detection device for measuring radial runout of a crankshaft, which comprises a bottom plate, a measurement unit, an optical sensor, a supporting seat, a main controller, a transmission system and a rotating body, wherein the rotating body is rotatably arranged on the bottom plate through the transmission system; the main controller is in control connection with the optical sensor and the rotating body, so that the optical sensor can measure radial runout data of the crankshaft when the measuring unit is controlled to rotate around the crankshaft.

Further, the measuring units are arranged at intervals, have adjustable intervals and are arranged on the rotating body in a coaxial mode.

Further, the body of the measuring unit is a semi-closed annular bracket, and the optical sensors are arranged on the annular bracket at equal intervals in the circumferential direction.

Further, the number of the optical sensors is 4, and the optical sensors are arranged on the annular bracket at a distance of 90 degrees from each other.

Further, the rotating body includes: a pair of coaxially disposed disc-shaped side walls and a plurality of support bars connecting the disc-shaped side walls together; the annular support is provided with a mounting hole matched with the supporting rod, the annular support is connected with the supporting rod in a matched mode through the mounting hole to be connected to the rotary body, the first side of the rotary body is further provided with a driving end which can be connected with a transmission system to drive the rotary body to rotate, the second side of the rotary body is further provided with a driven end which is provided with a primary sensor and an encoder, and the main controller is connected with the primary sensor, the encoder, the transmission system and the optical sensor in a control mode.

Further, the supporting seat is V-shaped, and a confirmation sensor for confirming whether the crankshaft to be tested is installed in place or not is further arranged on the side wall of the supporting seat, wherein the confirmation sensor is connected with the main controller in a controlled manner.

Further, the detection device comprises a safety shield able to match the base plate and to cover the rotating body and the measuring unit.

Further, a see-through window is formed on both the front side wall and the upper surface of the safety shield.

Further, the transmission system includes: the driving motor is arranged below the bottom plate, and the driving wheel is respectively connected with the driving end of the driving motor and the driving end of the rotating body so as to be connected and driven by the driving belt.

The utility model has the advantages that: (1) By applying the optical sensor on the detection device, the radial runout detection value of the crankshaft can be calculated by adopting a non-contact measurement mode under the static state of the workpiece, so that the automatic measurement is realized, and the detection process is quick and accurate. (2) Different kinds of workpieces can be measured by adjusting the number and the spacing of the measuring units, and the universality is strong.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the explosive structure of the components of the detection device of the present utility model;

FIG. 2 is a schematic view of the structure of the rotating body and the measuring unit of the present utility model;

FIG. 3 is a schematic diagram of the structure of the measuring unit of the present utility model;

FIG. 4 is a side view of the detection device of the present utility model;

FIG. 5 is a front view of the detection device of the present utility model;

FIG. 6 is a top view of the detection device of the present utility model.

Description of the reference numerals

100-a bottom plate, 101-a first installation part, 102-a second installation part, 103-a third installation part and 110-a main controller;

200-a safety shield;

300-a safety sunshade door;

400-rotating body, 401-first side wall, 402-second side wall, 403-supporting bar;

500-a drive end; 500' -driven, 501' -origin sensor, 502' -encoder;

600-V type supporting seat;

700-crank shaft;

800-measuring unit, 801-body, 802-mounting hole, 803-measuring beam;

900-confirm sensor;

901-driving a motor; 902-a drive belt; 903-drive wheel.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in view of the specific circumstances in combination with the prior art. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict. And one or more of the illustrated components may be necessary or optional, and the relative positional relationship between the various components illustrated above may be adjusted as desired.

As shown in fig. 1, the present utility model provides a detection apparatus for measuring radial runout of a crankshaft, the detection apparatus comprising: the device comprises a base plate 100, a rotary body 400, a measuring unit 800 and an optical sensor 803, a supporting seat 600, a main controller 110 and a transmission system, wherein the rotary body is rotatably arranged on the base plate (100) through the transmission system, the measuring unit (800) is fixedly arranged on the rotary body (400) and can rotate along with the rotation of the rotary body (400) so as to define a measuring interval, the supporting seat is arranged on the base plate so as to support a crankshaft to be measured to be accommodated in the measuring interval, the optical sensor (803) is fixedly arranged on the measuring unit, and a detection area (804) of the optical sensor faces to a main journal of the crankshaft to be measured and points to the main shaft center of the crankshaft to be measured; the main controller is in control connection with the optical sensor and the rotating body, so that the optical sensor can measure radial runout data of the crankshaft when the measuring unit is controlled to rotate around the crankshaft.

Specifically, the base plate 100 is formed with a first mounting portion 101, a second mounting portion 102, and a third mounting portion 103 in this order. The rotary body 400 is rotatably provided on the base plate 100 by the first mounting portion 101 and the third mounting portion 103. The second mounting portion 102 is located between the first mounting portion 101 and the third mounting portion 103 and is used for fixedly mounting the V-shaped supporting seat 600 for supporting the crankshaft 700 to be inspected.

The rotary body 400 is rotatably provided on the base plate 100. Specifically, a driving end 500 that can be connected to a transmission system to rotate the rotating body 400 is provided at one side of the rotating body 400. A driven end 500' on which the home sensor 501' and the encoder 502' are mounted is provided on the other side of the rotary body 400, wherein the master 110 is in control connection with the home sensor 501', the encoder 502', the transmission system and the optical sensor 803. The drive end 500 is fixedly mounted to the base plate 100 by the first mounting portion 101. The driven end 500' is fixedly mounted to the base plate 100 by the third mounting portion 103. Preferably, as shown in fig. 2, the rotary body 400 includes a pair of coaxially disposed disc-shaped side walls, i.e., a first side wall 401 and a second side wall 402. A plurality of through holes like a sector or trapezoid are uniformly formed around the center circumference on the first sidewall 401 and the second sidewall 402. A plurality of support rods 403 are connected between the first side wall 401 and the second side wall 402. The number of the through holes is 4, and the number of the support rods 403 is 3.

As shown in fig. 2, wherein the transmission system preferably comprises: the driving motor 901, the driving belt 902 and the driving wheel 903, wherein the driving motor 901 is arranged below the bottom plate 100, and the driving wheel 903 is respectively connected with the driving end of the driving motor 901 and the driving end 500 of the rotating body 400 so as to be connected and driven by the driving belt 902 in a matching way.

As shown in fig. 2, the measuring unit 800 is fixedly provided on the rotary body 400 and is rotatable with the rotation of the rotary body 400. The body 801 of the measuring unit 800 is a semi-closed annular holder. The annular bracket is formed with a mounting hole 802 that can be matched with the support bar 403. Thus, by threading the mounting holes 802 of the ring-shaped holder 801 on the support rods 403 of the rotary body 400, a plurality of measuring units 800 can be provided on the rotary body 400 with adjustable pitches coaxially.

As shown in fig. 3, the optical sensor 803 is fixedly provided at one side of the annular holder. Preferably, the optical sensors 803 are plural and circumferentially equally spaced on the annular support 801. Further, the optical sensors 803 are 4 and are disposed on the annular stand 801 at a distance of 90 ° from each other. The measuring beam 804 of the optical sensor 803 can be in contact with the main journal of the crankshaft to be measured and directed toward the main shaft center.

As shown in fig. 4 to 6, in use, the main controller makes the transmission system work to drive the rotary body 400 to rotate through the driving end 500, and the rotary body 400 further drives the measuring unit 800 and the optical sensor 803 to rotate 90 ° around the crankshaft to be measured placed on the supporting seat 600, so as to measure radial runout data on the whole circumferential surface of the crankshaft to be measured, and send the radial runout data to the main controller to obtain a detection result.

Wherein in order to be able to detect whether the crankshaft 700 is stably fixed to the base plate 100, in a preferred embodiment, the detecting means includes a V-shaped supporting seat 600 fixedly coupled with the second mounting portion 102 on the base plate 100. The V-shaped supporting seats 600 may be provided in two or more groups in order to accommodate different types of crankshafts. In addition, in order to detect whether the crankshaft is in place, the detecting device further includes a confirmation sensor 900 provided on the V-shaped support 600, wherein the connection of the confirmation sensor 900 with the main controller 110 is controlled, so that empty detection can be avoided by the confirmation sensor 900.

Further, in order to protect the entire working assembly, the inspection device further includes a safety shield 200 that can be mated with the base plate 100 and cover the rotating body 400 and the measuring unit 800. A see-through window for facilitating the observation of the operation condition of the working assembly is provided at both the front side wall and the upper surface of the safety shield 200. A safety sunshade door 300 is further provided above the window of the upper surface of the safety shield 200.

In summary, according to the detection device for measuring the radial runout of the crankshaft, provided by the utility model, the optical sensor can be applied to the detection device, and the radial runout detection value of the crankshaft can be calculated by adopting a non-contact measurement mode in a workpiece static state, so that automatic measurement is realized, and the detection process is rapid and accurate. Meanwhile, different kinds of workpieces can be measured by adjusting the number and the distance of the measuring units, so that the universality is strong.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is to be limited only by the following claims and their full scope and equivalents, and any modifications, equivalents, improvements, etc., which fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

In addition, any combination of various embodiments of the present utility model may be performed, so long as the concept of the embodiments of the present utility model is not violated, and the disclosure of the embodiments of the present utility model should also be considered.

Claims

1. A detection device for measuring radial runout of a crankshaft, comprising: the device comprises a bottom plate, a measuring unit, an optical sensor, a supporting seat, a main controller, a transmission system and a rotating body, wherein the rotating body is rotatably arranged on the bottom plate through the transmission system, the measuring unit is fixedly arranged on the rotating body and can rotate along with the rotation of the rotating body so as to define a measuring interval, the supporting seat is arranged on the bottom plate so as to support a crankshaft to be measured to be accommodated in the measuring interval, the optical sensor is fixedly arranged on the measuring unit, and a detection area of the optical sensor faces to a main journal of the crankshaft to be measured and points to the main shaft center of the crankshaft to be measured; the main controller is in control connection with the optical sensor and the rotating body, so that the optical sensor can measure radial runout data of the crankshaft when the measuring unit is controlled to rotate around the crankshaft.

2. The apparatus according to claim 1, wherein the measuring units are disposed at intervals with an adjustable pitch, and are disposed on the rotary body in a coaxial manner.

3. The detecting device for measuring radial runout of a crankshaft according to claim 2, wherein the body of the measuring unit is a semi-closed annular bracket, and the optical sensors are provided in plurality and circumferentially equally spaced on the annular bracket.

4. A detection device for measuring radial runout of a crankshaft as set forth in claim 3, wherein the number of optical sensors is 4 and are disposed on the annular bracket at a distance of 90 ° from each other.

5. A detection apparatus for measuring radial runout of a crankshaft as defined in claim 3, wherein the rotating body comprises: a pair of coaxially disposed disc-shaped side walls and a plurality of support bars connecting the disc-shaped side walls together; the annular support is provided with a mounting hole matched with the supporting rod, the annular support is connected with the supporting rod in a matched mode through the mounting hole to be connected to the rotary body, the first side of the rotary body is further provided with a driving end which can be connected with a transmission system to drive the rotary body to rotate, the second side of the rotary body is further provided with a driven end which is provided with a primary sensor and an encoder, and the main controller is connected with the primary sensor, the encoder, the transmission system and the optical sensor in a control mode.

6. The device for measuring radial runout of a crankshaft according to any one of claims 1-5, wherein the supporting seat is V-shaped, and a confirmation sensor for confirming whether the crankshaft to be measured is in place is further provided on a side wall of the supporting seat, wherein the connection between the confirmation sensor and the main controller is controlled.

7. The apparatus according to claim 1, further comprising a safety shield capable of mating with the base plate and covering the rotating body and the measuring unit.

8. The apparatus according to claim 7, wherein the safety shield has a transparent window formed on both a front side wall and an upper surface thereof.

9. The apparatus for measuring radial runout of a crankshaft as defined in claim 5, wherein the transmission system comprises: the driving motor is arranged below the bottom plate, and the driving wheel is respectively connected with the driving end of the driving motor and the driving end of the rotating body so as to be connected and driven by the driving belt.