Radial clearance detection tool for wind power bearing

Abstract

The utility model belongs to the technical field of bearing detection tools, and particularly relates to a wind power bearing radial clearance detection tool which comprises a loading support, a jack and a plurality of pre-tightening bolts. The pre-tightening bolts are assembled on mounting holes in the end faces of the two ends of the bearing, the loading support comprises a mounting part, a supporting part and a cross beam which are integrally formed, the mounting part and the supporting part are connected through the cross beam, the bearing is horizontally arranged, the supporting part is located on the outer diameter side of the bearing and abuts against the peripheral face of the bearing, and the mounting part is located on the inner diameter side of the bearing. The tail end of the jack is connected to the installation part, an ejection mechanism at the head end of the jack abuts against the inner circumferential face of the bearing, and the inner ring of the bearing is driven by the jack to move in the radial direction. The radial displacement of the inner ring of the bearing is measured in the state that the bearing is horizontally placed, the detection process is simple, rapid, efficient and accurate, the installation state of the wind power bearing is simulated through the pre-tightening bolt, the radial clearance of the bearing can be detected under the simulated working condition, and the detection effect is accurate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bearing detection frock technical field, concretely relates to a kind of wind power bearing radial play detection frock. BACKGROUND

[0002] Wind power bearing is a kind of rolling bearing, is one of the components widely used in modern wind power, it is relied on the rolling contact of main component to support rotating parts, wind power bearing has been mostly standardized now, wind power bearing has the advantages of small torque required for starting, slow rotation, large load, long service life, easy to select etc.

[0003] At present, when detecting radial play, the method of vertically lifting and hoisting the bearing is usually adopted for the oversize wind power main shaft yaw variable pitch bearing, not only the detection process is troublesome and laborious, but also it is easily limited by the height of detection site. UTILITY MODEL CONTENTS

[0004] According to the defects of the above-mentioned prior art, the purpose of the utility model is to provide a kind of wind power bearing radial play detection frock, which completes the detection process of wind power bearing radial play under the condition of bearing horizontal placement.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: a kind of wind power bearing radial play detection frock, including loading support, jack and a plurality of pre-tightening bolts detachably arranged on loading support;A plurality of pre-tightening bolts are assembled on the mounting hole of the end face of the bearing, the loading support includes an integral mounting portion, a support portion and a crossbeam, the mounting portion and the support portion are connected by the crossbeam, the bearing is horizontally placed, the support portion is located on the outer diameter side of the bearing and abuts against the outer peripheral surface of the bearing, the mounting portion is located on the inner diameter side of the bearing, the jack is arranged along the radial direction of the bearing, the tail end of the jack is connected to the mounting portion, the ejecting mechanism of the head end of the jack abuts against the inner peripheral surface of the bearing, and the inner ring of the bearing is driven to displace radially by the jack.

[0006] Further, the inner ring and the outer ring of the bearing are arranged axially offset, when the outer ring is horizontally placed on the detection plane, the inner ring is suspended.

[0007] Further, the pre-tightening bolt corresponds to the bearing mounting hole one by one.

[0008] Further, the wind power bearing radial play detection frock further includes a pad, the pad is placed on the upper end face of the bearing, and the crossbeam is placed on the pad.

[0009] Further, the wind power bearing radial play detection frock further includes a support, and the support is supported below the mounting portion.

[0010] Further, the mounting portion and the jack are detachably connected by connecting bolts.

[0011] Further, a plurality of uniformly spaced connecting bolt holes are arranged on the mounting portion for adjusting the mounting position of the jack.

[0012] Preferably, four bolt holes are arranged at the four corners of the tail end of the jack, two columns are arranged transversely on the mounting portion, four rows are arranged longitudinally, and a total of eight connecting bolt holes corresponding to the positions of the jack bolt holes are arranged, so that the jack has a total of three mounting positions, i.e., upper, middle and lower mounting positions, thereby facilitating the adjustment of the assembly height of the jack and being suitable for the measurement of bearings of different heights.

[0013] Further, the mounting portion and the supporting portion are plate-shaped structures arranged in parallel, the mounting portion and the supporting portion are connected perpendicularly at the two ends of the crossbeam, and the loading bracket is an integrally formed 'door' shaped iron.

[0014] Further, the two ends of the crossbeam are connected to the mounting portion and the supporting portion in a stepped manner, and the stepped corners are connected in an arc manner.

[0015] Further, the electric bearing radial clearance detection tool further comprises a measuring table, a measuring needle of the measuring table is in contact with the inner circumferential surface of the bearing, and the radial displacement of the inner ring of the bearing under the driving of the jack is measured as the radial clearance.

[0016] Further, 3-4 positions are selected along the circumference of each bearing, the jack is repeatedly lifted, and the radial clearance of the bearing is measured.

[0017] The electric bearing radial clearance detection tool has the advantages that the radial displacement of the inner ring of the bearing can be realized and measured in the state that the bearing is placed horizontally, the detection process is simple, fast, efficient and accurate, the pre-tightening bolt is used to simulate the installed state of the wind power bearing, the radial clearance of the bearing can be detected under the simulated working condition, and the detection effect is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 Fig. 1 is a schematic view of the wind power bearing radial clearance detection tool and the bearing assembly of the utility model;

[0019] Fig. 2 Fig. 1 is a schematic view of the wind power bearing radial clearance detection tool and the bearing assembly of the utility model;

[0020] Fig. 3 Fig. 1 is a schematic view of the wind power bearing radial clearance detection tool and the bearing assembly of the utility model;

[0021] In the figure: 1, loading bracket, 101, mounting portion, 1011, connecting bolt hole, 102, supporting portion, 103, crossbeam, 2, jack, 3, pre-tightening bolt, 4, pad, 5, supporting piece, 6, connecting bolt, 7, inner ring, 8, outer ring. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purpose, features and advantages of the present application more apparent, understandable and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the concept of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0023] Referring to the drawings Figs. 1-3 The utility model provides a kind of wind power bearing radial clearance detection tool, including loading support 1, jack 2 and several pre-tightening bolts 3 detachably arranged on loading support 1;Several pre-tightening bolts 3 are assembled on the mounting hole of the end surface of bearing, and the loading support includes integrated mounting portion 101, support portion 102 and crossbeam 103, and mounting portion 101 and support portion 102 are connected by crossbeam 103, the bearing is placed horizontally, and the support portion 102 is located on the outer diameter side of bearing and abuts against the outer peripheral surface of bearing, and the mounting portion 101 is located on the inner diameter side of bearing, and the jack 2 is arranged along the radial direction of bearing, and the tail end of jack 2 is detachably connected on the mounting portion 101 by connecting bolt 6, and the ejecting mechanism of the head end of jack abuts against the inner peripheral surface of bearing, and the radial displacement of bearing inner ring 7 is driven by jack 2.

[0024] Based on the structure of bearing itself, the inner ring 7 and the outer ring 8 of the bearing are arranged in axial misalignment, and when the outer ring 8 is placed horizontally on the detection plane, the inner ring 7 is suspended, which facilitates the radial displacement of the inner ring 7 and detects the radial clearance of the bearing. The jack 2 is a pneumatic jack or a mechanical jack. When the jack 2 is ejected, the outer ring 8 does not move, the support portion 102 of the loading support 1 supports the outer ring 8, so as to ensure that the position of the loading support 1 does not move, the inner ring 7 at the ejection position of the jack 2 approaches the outer ring 8, which generates radial displacement, and the radial clearance detection tool for bearing further comprises a measuring table, the measuring needle of the measuring table is in contact with the inner peripheral surface of the bearing, and the measuring table is close to the ejection position of the jack, so as to measure the radial displacement of the inner ring of the bearing driven by the jack as the radial clearance.

[0025] Preferably, the surface of the support portion 102 in contact with the outer peripheral surface of the bearing is an irregular rough surface, which can be formed by sand blasting, so as to increase the friction between the support portion and the outer ring of the bearing and avoid slipping.

[0026] Further, the pre-tightening bolts correspond one-to-one to the mounting holes of the bearing. All the pre-tightening bolts are assembled in the mounting holes of the bearing, so as to simulate the assembly state under the working condition of the bearing and improve the detection accuracy of the radial clearance.

[0027] Further, the wind power bearing radial clearance detection tool further comprises a cushion block 4 arranged on the upper end surface of the bearing, the cross beam 103 is arranged on the cushion block 4, the cushion block 4 supports the cross beam 103 from top to bottom, and the loading support 1 is further supported.

[0028] Further, the wind power bearing radial clearance detection tool further comprises a supporting piece 5 supported below the mounting portion 101.

[0029] According to the above technical scheme, the loading support is supported in the radial and axial directions by the cushion block 4 and the supporting piece 5, so that the axial displacement of the loading support is avoided, and the detection accuracy is affected.

[0030] Further, four bolt holes are arranged at four corners of the tail end of the jack 2, two columns are arranged in the transverse direction on the mounting portion, four rows are arranged in the longitudinal direction, and a total of eight connecting bolt holes 1011 corresponding to the positions of the jack bolt holes are arranged.

[0031] Further, the mounting portion 101 and the supporting portion 102 are plate-shaped structures arranged in parallel, the mounting portion 101 and the supporting portion 102 are vertically connected to the two ends of the cross beam 103, and the loading support 1 is an integrally formed 'door' shaped iron with high strength.

[0032] Further, the two ends of the cross beam 103 are connected to the mounting portion 101 and the supporting portion 102 in a stepped manner, and the stepped corners are connected in an arc manner.

[0033] Further, 3-4 positions are selected at intervals in the circumferential direction of each bearing, the jack is repeatedly pushed out, the radial clearance of the bearing is measured, and the average value of several measurements is the radial clearance of the bearing.

[0034] It should be noted that the parts not described in detail in the utility model are prior art.

[0035] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0037] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0039] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms since such terms are only used to distinguish one element from another. The terms "comprises", "comprising", "includes", "including" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "a" or "an", as used herein, mean "one or more". The terms "another" and "one or more" as used herein have the same meaning as "at least one". The term "about" means approximately or nearly as understood by one of ordinary skill in the art. The term "coupled" as used herein means the joining of two members directly or indirectly to one another.

[0040] The above embodiments are only the best modes of the present application. Obviously, the present application is not limited to the above embodiments, and can have many variations. All variations that can be directly derived or thought of by those of ordinary skill in the art from the content disclosed in the present application should be considered to be within the scope of the present application.

Claims

1. A wind turbine bearing radial play detection tool, characterized by: The loading support, the jack and the several pre-tightening bolts are detachably arranged on the loading support; the several pre-tightening bolts are assembled on the mounting holes of the two end faces of the bearing; the loading support comprises an integral mounting part, a supporting part and a crossbeam, the mounting part and the supporting part are connected through the crossbeam; the bearing is horizontally placed, the supporting part is located on the outer diameter side of the bearing and abuts against the outer peripheral surface of the bearing; the mounting part is located on the inner diameter side of the bearing; the jack is arranged along the radial direction of the bearing, the tail end of the jack is connected to the mounting part, the ejecting mechanism of the head end of the jack abuts against the inner peripheral surface of the bearing, and the inner ring of the bearing is driven to displace radially through the jack.

2. The radial clearance detection tool for wind power bearing according to claim 1, characterized in that: The inner ring and the outer ring of the bearing are arranged in axial misalignment, and the inner ring is suspended when the outer ring is horizontally placed on the detection plane.

3. The radial clearance detection tool for wind power bearing according to claim 1, characterized in that: The loading support further comprises a pad, which is arranged on the upper end face of the bearing, and the crossbeam is arranged on the pad.

4. The radial clearance detection tool for wind power bearing according to claim 1, characterized in that: The loading support further comprises a supporting member, which is supported below the mounting part.

5. The radial clearance detection tool for wind turbine bearing according to claim 1, characterized in that: The mounting part is detachably connected to the jack through the connecting bolts.

6. The radial clearance detection tool for wind turbine bearing according to claim 5, characterized in that: The mounting part is provided with several uniformly spaced connecting bolt holes, which are used to adjust the mounting position of the jack.

7. The radial clearance detection tool for wind power bearing according to claim 1, characterized in that: The mounting part and the supporting part are plate-shaped structures arranged in parallel, the mounting part and the supporting part are vertically connected to the two ends of the crossbeam, and the loading support is an integral "door" shaped iron.

8. The radial clearance detection tool for wind power bearing according to claim 1, characterized in that: The two ends of the crossbeam are connected to the mounting part and the supporting part in a stepped manner, and the corner of the step is rounded.

9. The radial clearance detection tool for wind turbine bearing according to any one of claims 1-8, characterized in that: The loading support further comprises a measuring table, the measuring needle of the measuring table is in contact with the inner peripheral surface of the bearing, and the radial displacement of the inner ring of the bearing driven by the jack is measured as the radial play.

10. The radial clearance detection tool for wind turbine bearing according to claim 9, characterized in that: Three to four positions are selected along the circumferential direction of each bearing, the jack ejecting action is repeated, and the radial play of the bearing is measured.

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