Sheave detection device

Abstract

The present invention discloses a groove wheel detection device, comprising a support seat, a positioning shaft pivotally connected to the support seat and used for positioning and supporting the groove wheel, a rotating shaft pivotally connected to the support seat, and a detection mechanism installed on the rotating shaft and rotating with the rotating shaft. The detection mechanism comprises a detection column and a detection disk. The axis of the detection column is parallel to the axis of the rotating shaft and is spaced a certain distance apart, and the detection column is used to closely match and rub the U-shaped groove working surface of the transmission groove wheel. The detection disk is fixed to the rotating shaft, and the detection disk has a side curved surface with an outer contour of an arc structure, and the side curved surface is used to gap match the arc groove working surface of the groove wheel. And the side curved surfaces of the detection column and the detection disk are staggered in the rotation direction of the detection mechanism. When the rotating shaft is rotated for measurement, at least one of the detection column and the detection disk cooperates with the groove wheel. It can accurately measure the groove wheel to determine whether the groove wheel is qualified, and the measurement process is simple and the measurement efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a sheave detection device. Background Art

[0002] The groove wheel is a precision mechanical component that requires high processing accuracy, has a complex shape, and has many curves. Figure 1 The sheave shown in the figure is mainly measured on the U-shaped groove working surface 11 and the arc groove working surface 12 of the sheave to detect whether the machining accuracy of the U-shaped groove working surface 11 and the arc groove working surface 12 meets the requirements. In the past, the measurement of the sheave mainly relied on a dividing instrument, a ruler, etc., which had the defects of difficult positioning of the sheave and low positioning accuracy, resulting in large measurement errors and difficult to detect whether the sheave is a qualified part; therefore, the sheave is generally not tested in the prior art, and its qualification can only be confirmed after actual installation. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a sheave detection device, which can accurately measure the sheave to determine whether the sheave is qualified, and the measuring process is simple and the measuring efficiency is high.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] The sheave detection device comprises a support seat, a positioning shaft pivotally connected to the support seat and used for positioning and supporting the sheave, a rotating shaft pivotally connected to the support seat, and a detection mechanism mounted on the rotating shaft and rotating with the rotating shaft;

[0006] The detection mechanism comprises a detection column and a detection disk; the axis of the detection column is parallel to the axis of the rotating shaft and is spaced a certain distance apart, and the detection column is used to closely match and rub the U-shaped groove working surface of the transmission groove wheel; the detection disk is fixed to the rotating shaft, and the detection disk has a side curved surface with an arc-shaped outer contour, and the side curved surface is used to gap-match the arc-shaped groove working surface of the groove wheel; and the side curved surfaces of the detection column and the detection disk are staggered in the rotation direction of the detection mechanism;

[0007] When the rotating shaft is rotated for measurement, at least one of the detection column and the detection disk cooperates with the groove wheel.

[0008] Furthermore, the detection mechanism further comprises a bearing member, the bearing member is pivotally connected to the rotating shaft, and the detection column and the detection disk are both fixed to the bearing member.

[0009] Furthermore, the upper end surface of the carrier is a plane, the detection column and the detection plate are both fixed to the upper end surface of the carrier, and the detection column and the detection plate are flush with each other.

[0010] Furthermore, the carrier is provided with a semicircular hole; the detection column comprises a column with a cylindrical structure and a fixing portion with a semi-cylindrical structure, the outer diameter of the column is larger than the outer diameter of the fixing portion; the fixing portion is adapted to the semicircular hole.

[0011] Furthermore, the detection mechanism also includes a driving member, which is fixedly connected to the rotating shaft and is used to be rotated by hand to drive the rotating shaft to rotate.

[0012] Furthermore, the driving member is located above the detection column and the detection disk.

[0013] Furthermore, the driving member includes a support block and a handle in a cylindrical structure, the support block is fixed to the rotating shaft, and the axis of the handle is parallel to the axis of the rotating shaft and is spaced a certain distance apart.

[0014] Furthermore, the detection disk is an arc-shaped disk structure, and the arc of the detection disk is greater than 180°.

[0015] Furthermore, the arc of the detection disk is 212°; and the distance between the axis of the detection column and the axis of the rotating shaft is 145 mm.

[0016] Furthermore, the positioning shaft is a stepped shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This sheave measuring device simulates the working mode of the sheave and is provided with a positioning shaft and a rotating shaft. During the test, after the sheave is installed on the positioning shaft, the rotating shaft is manually rotated to make the detection column and the U-groove working surface of the sheave frictionally drive, or the detection plate and the arc groove working surface of the sheave are clearance-matched. Among them, after the sheave rotates one circle, if the detection column can complete the tight fit and friction drive of all the U-groove working surfaces of the sheave during the whole process, it means that the sheave is a qualified part; otherwise, it means that the sheave is not a qualified part. The detection process is simple and greatly improves the detection efficiency of the sheave.

[0019] 2. Since the detection column and the U-groove working surface of the groove wheel are closely matched, it can ensure that there is no slip between the two, thus ensuring the accuracy of the detection result. The side curved surface clearance of the detection disk matches the arc groove working surface of the groove wheel, so that the detection disk can hinder the rotation of the groove wheel while rotating, so that the detection column can accurately match the next U-groove working surface of the groove wheel, so that all U-groove working surfaces of the groove wheel can be repeatedly detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a workpiece (groove wheel) to be detected according to the present invention;

[0021] Figure 2 It is a structural schematic diagram of the sheave detection device of the present invention;

[0022] Figure 3 for Figure 2 A cross-sectional view of a sheave detection device shown;

[0023] Figure 4 for Figure 2 The effect diagram of the use of the groove wheel detection device shown;

[0024] Figure 5 for Figure 4 Top view of the .

[0025] In the figure: 1, groove wheel; 11, U-shaped groove working surface; 12, arc groove working surface; 21, support seat; 22, positioning shaft; 23, rotating shaft; 24, detection column; 25, detection disk; 26, side curved surface; 27, bearing member; 28, support block; 29, handle. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", "vertical", "top", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internally connected between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Figure 2-Figure 5A groove wheel 1 detection device of a preferred embodiment of the present invention is shown, including a support seat 21, a positioning shaft 22 pivotally connected to the support seat 21 and used for positioning and supporting the groove wheel 1, a rotating shaft 23 pivotally connected to the support seat 21, and a detection mechanism installed on the rotating shaft 23 and rotating with the rotating shaft 23.

[0030] The detection mechanism includes a detection column 24 and a detection disk 25. The axis of the detection column 24 is parallel to the axis of the rotating shaft 23 and is spaced a certain distance apart to ensure that the detection column 24 can extend into the U-shaped groove working surface 11 of the groove wheel 1. The detection column 24 is used to closely match and frictionally drive the U-shaped groove working surface 11 of the groove wheel 1 to ensure that the groove wheel 1 can be accurately driven by the detection column 24 and detected. The detection disk 25 is fixed to the rotating shaft 23. The detection disk 25 has a side curved surface 26 with an arc-shaped outer contour. The side curved surface 26 is used to clearance fit the arc groove working surface 12 of the groove wheel 1 (wherein, a large clearance fit is preferably adopted between the side curved surface 26 and the arc groove working surface 12 of the groove wheel 1), so as to ensure that when the detection disk 25 rotates, not only the side curved surface 26 can be relatively moved relative to the arc groove working surface 12 of the groove wheel 1, but also the groove wheel 1 can be prevented from continuing to rotate to ensure that the detection column 24 can accurately match the next U-shaped groove working surface 11 of the groove wheel 1; and the detection column 24 and the side curved surface 26 of the detection disk 25 are staggered in the rotation direction of the detection mechanism.

[0031] Importantly, when the rotating shaft 23 is rotated for measurement, at least one of the detection column 24 and the detection disk 25 cooperates with the groove wheel 1 (it should be noted that the detection column 24 and the detection disk 25 can be simultaneously cooperated with the groove wheel 1 to ensure smooth transmission when the two switch to cooperate with the groove wheel 1; or when any one of the two happens to be out of cooperation with the groove wheel 1, the other happens to be in cooperation with the groove wheel 1), thereby ensuring that the detection mechanism maintains a cooperative relationship with the groove wheel 1, so as to avoid the situation where the detection mechanism and the groove wheel 1 are out of cooperation during the rotation of the rotating shaft 23, thereby affecting the detection results and efficiency.

[0032] Obviously, the present sheave 1 measuring device is provided with a positioning shaft 22 and a rotating shaft 23 by simulating the working mode of the sheave 1. During the test, after the sheave 1 is installed on the positioning shaft 22, the rotating shaft 23 is manually rotated so that the detection column 24 and the U-shaped groove working surface 11 of the sheave 1 are frictionally driven, or the detection disk 25 and the arc groove working surface 12 of the sheave 1 are gap-matched. Among them, after the sheave 1 rotates one circle, if the detection column 24 can complete the tight fit and friction drive of all the U-shaped groove working surfaces 11 of the sheave 1 during the whole process, it means that the sheave 1 is a qualified part; otherwise, it means that the sheave 1 is not a qualified part. The detection process is simple, which greatly improves the detection efficiency of the sheave 1.

[0033] Furthermore, it should be noted that since the detection column 24 is closely matched with the U-shaped groove working surface 11 of the groove wheel 1, it can be ensured that there is no slippage between the two, thereby ensuring the accuracy of the detection result. The side curved surface 26 of the detection disk 25 is loosely matched with the arc groove working surface 12 of the groove wheel 1, so that the detection disk 25 can prevent the groove wheel 1 from rotating while rotating, so that the detection column 24 can accurately match the next U-shaped groove working surface 11 of the groove wheel 1, so that all U-shaped groove working surfaces 11 of the groove wheel 1 can be repeatedly detected.

[0034] Among them, it needs to be explained here that the detection column 24 and the side curved surface 26 of the detection disk 25 are staggered in the rotation direction of the detection mechanism. In order to facilitate the understanding of the definition of the staggered arrangement, the preferred arrangement method is that the detection column 24 and the detection disk 25 are located in the same horizontal plane, and are staggered circumferentially along the axis of the rotating shaft 23 (that is, there is no overlapping relationship between the two). The distance between any point of the detection column 24 and the axis of the rotating shaft 23 is defined as the first distance, and the distance between the side curved surface 26 of the detection disk 25 and the axis of the rotating shaft 23 is defined as the second distance (that is, the radius of the side curved surface 26 is the second distance, that is, at this time, the side curved surface 26 is preferably a side curved surface 26 of an arc structure). Among them, the first distance and the second distance can be greater than, less than or equal to each other. At this time, one end of the line segment of the first distance intersects with one end of the line segment of the second distance on the axis of the rotating shaft 23, as long as the line segment of the first distance and the line segment of the second distance do not overlap or have a collinear relationship, thereby ensuring that the detection column 24 and the side curved surface 26 of the detection disk 25 are staggered in the rotation direction of the detection mechanism. It can be understood that in actual products, the first distance is preferably greater than the second distance to ensure that the detection column 24 can contact and detect more positions of the U-groove working surface 11 of the groove wheel 1.

[0035] The support seat 21 can be connected to the positioning shaft 22 and the rotating shaft 23 by direct pivot connection; it can also be supported by bearings to reduce friction; it can also be pivotally connected by other existing conventional methods.

[0036] Preferably, the detection mechanism also includes a supporting member 27, which is pivotally connected to the rotating shaft 23, and the detection column 24 and the detection disk 25 are both fixed to the supporting member 27; thereby ensuring that the detection column 24 and the detection disk 25 rotate synchronously, that is, there is no angular velocity deviation, so as to ensure that the detection mechanism and the groove wheel 1 are accurately transmitted, thereby avoiding the situation where the measurement error is affected by the transmission error.

[0037] Preferably, the upper end surface of the carrier 27 is a plane, the detection column 24 and the detection disk 25 are fixed to the upper end surface of the carrier 27, and the height of the detection column 24 and the detection disk 25 are flush. It can be understood that the accuracy requirement of the detection mechanism is also high. Since the depth of the U-shaped groove and the arc groove of the groove wheel 1 are consistent, such a setting is conducive to reducing the difficulty of processing the detection column 24 and the detection disk 25 while realizing a more comprehensive detection of the groove wheel 1.

[0038] Since the detection column 24 needs to be in close contact with the groove wheel 1, in order to prevent the detection column 24 from loosening or relative rotation between the groove wheel 1 during the friction transmission process, thereby avoiding the measurement result from being affected. Preferably, the bearing member 27 is provided with a semicircular hole; the detection column 24 includes a column with a cylindrical structure and a fixing portion with a semi-cylindrical structure. Among them, the detection column 24 is preferably an integrally molded structure. The outer diameter of the column is larger than the outer diameter of the fixing portion, and the fixing portion is adapted to the semicircular hole. With this arrangement, relative rotation or looseness cannot occur between the bearing member 27 and the detection column 24, thereby further ensuring the accuracy of the detection result.

[0039] Preferably, the detection mechanism further includes a driving member, which is fixedly connected to the rotating shaft 23 and is used for being rotated manually to drive the rotating shaft 23 to rotate; thereby facilitating rapid rotation of the rotating shaft 23 to detect the sheave 1, thereby improving detection efficiency.

[0040] Because the sheave 1 needs to be installed on the sheave 1 detection device before detection, and the sheave 1 needs to be removed from the sheave 1 detection device after detection, and the driving member needs to be operated, in order to save operation time and improve detection efficiency, the driving member is preferably located above the detection column 24 and the detection disk 25.

[0041] Preferably, the driving member includes a support block 28 and a handle 29 with a cylindrical structure (to ensure a comfortable hand feel), the support block 28 is fixed to the rotating shaft 23, and the axis of the handle 29 is parallel to the axis of the rotating shaft 23 and spaced a certain distance apart; thereby facilitating manual rotation of the handle 29.

[0042] Preferably, the detection disk 25 is an arc disk structure, and the arc of the detection disk 25 is greater than 180°, so as to further ensure that at least one of the detection column 24 and the detection disk 25 cooperates with the groove wheel 1. More preferably, the arc of the detection disk 25 is 212°; the distance between the axis of the detection column 24 and the axis of the rotating shaft 23 is 145 mm. At this time, the performance of the groove wheel 1 detection device is the best, and the U-shaped groove working surface 11 and the arc groove working surface 12 of the groove wheel 1 can be fully matched to ensure more comprehensive detection.

[0043] Preferably, the positioning shaft 22 is a stepped shaft to ensure that the positioning shaft 22 can stably support the sheave 1. Of course, the positioning shaft 22 can be supported and fixed with the sheave 1 only by a key connection, or connected with the sheave 1 by other conventional means.

[0044] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A sheave detection device, characterized in that: It includes a support seat, a positioning shaft pivotally connected to the support seat and used to position and support the groove wheel, a rotating shaft pivotally connected to the support seat, and a detection mechanism installed on the rotating shaft and rotating with the rotating shaft; The detection mechanism comprises a detection column and a detection disk; the axis of the detection column is parallel to the axis of the rotating shaft and is spaced a certain distance apart, and the detection column is used to closely match and rub the U-shaped groove working surface of the transmission groove wheel; the detection disk is fixed to the rotating shaft, and the detection disk has a side curved surface with an arc-shaped outer contour, and the side curved surface is used to gap-match the arc-shaped groove working surface of the groove wheel; and the side curved surfaces of the detection column and the detection disk are staggered in the rotation direction of the detection mechanism; The detection mechanism further comprises a bearing member, the bearing member is pivotally connected to the rotating shaft, and the detection column and the detection disk are both fixed to the bearing member; The upper end surface of the carrier is a plane, the detection column and the detection plate are both fixed to the upper end surface of the carrier, and the detection column and the detection plate are flush with each other; The bearing member is provided with a semicircular hole; the detection column comprises a cylindrical body and a fixing part in a semi-cylindrical structure, the outer diameter of the cylindrical body is larger than the outer diameter of the fixing part; the fixing part is adapted to the semicircular hole; When the rotating shaft is rotated for measurement, at least one of the detection column and the detection disk cooperates with the groove wheel.

2. The sheave detection device according to claim 1, characterized in that: The detection mechanism also includes a driving member, which is fixedly connected to the rotating shaft and is used for being rotated by hand to drive the rotating shaft to rotate.

3. The sheave detection device according to claim 2, characterized in that: The driving member is located above the detection column and the detection disk.

4. The sheave detection device according to claim 2, characterized in that: The driving member comprises a supporting block and a handle in a cylindrical structure, wherein the supporting block is fixed to the rotating shaft, and an axis of the handle is parallel to and spaced a certain distance from the axis of the rotating shaft.

5. The sheave detection device according to claim 1, characterized in that: The detection disk is an arc-shaped disk structure, and the arc of the detection disk is greater than 180°.

6. The sheave detection device according to claim 5, characterized in that: The arc of the detection disk is 212°; the distance between the axis of the detection column and the axis of the rotating shaft is 145 mm.

7. The sheave detection device according to claim 1, characterized in that: The positioning shaft is a stepped shaft.

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