Measuring device for mechanical vibration of bearing

Abstract

The invention belongs to the technical field of bearing vibration measurement, and provides a bearing mechanical vibration measuring device comprising a measuring assembly; the driving assembly is fixedly mounted above the measuring assembly; the inner supporting assembly is arranged on the right side of the driving assembly; the to-be-measured bearing is detachably connected to the outer side of the inner supporting assembly in a sleeving manner; the jacking assembly is arranged above the measuring assembly, and the jacking assembly is located under the bearing to be measured; the measuring assembly comprises a bearing frame, a bearing vibration measuring instrument is embedded in the top of the bearing frame, and a connecting wire is fixedly connected to the bearing vibration measuring instrument. According to the invention, the to-be-measured bearings with different sizes can be positioned through the three inner supporting plates, so that the measurement range of the device is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of bearing vibration measurement, and specifically relates to a measuring device for bearing mechanical vibration. Background Art

[0002] A bearing is an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotational accuracy. In the existing mechanical diagnosis technology, measuring the vibration signal amplitude of a rotating mechanical bearing is one of the main bases for judging the imbalance, misalignment, and dynamic-static rubbing faults of a rotating machine; for a common rotating mechanical bearing vibration measuring instrument, the bearing needs to be sleeved on the rotating shaft of the motor to drive the inner rotor of the bearing to rotate. However, the width of the existing rotating shaft is not adjustable, and it can only measure the vibration of some bearings with matching dimensions. It is relatively single in use and cannot be adjusted according to the inner width of the bearing, so its practicability is poor.

[0003] The Chinese patent discloses a measuring device for rotating mechanical bearing vibration, with the publication number CN115165066A. This patent adjusts the distance between two inner blocks through a rotating knob block, so as to position bearings of different sizes, effectively improving its compatibility and practicability; although the above patent can position bearings of different sizes, the positioning stability is poor. Therefore, those skilled in the art have proposed a measuring device for bearing mechanical vibration to solve the problems raised in the background art. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a measuring device for bearing mechanical vibration to solve the problem of poor positioning stability of the existing device for bearings.

[0005] A measuring device for bearing mechanical vibration includes:

[0006] A measuring component;

[0007] A driving component, which is fixedly installed above the measuring component;

[0008] An inner support component, which is arranged on the right side of the driving component;

[0009] A bearing to be measured, which is detachably sleeved outside the inner support component;

[0010] A jacking component, which is arranged above the measuring component and is located directly below the bearing to be measured;

[0011] The measurement component includes a carrier frame, on the top of which is embedded a bearing vibration measuring instrument. A connecting wire is fixedly connected to the bearing vibration measuring instrument, and one end of the connecting wire away from the bearing vibration measuring instrument is fixedly connected with a measurement contact block. A square accommodation cavity is formed in the middle of the upper surface of the carrier frame, and a through hole communicating with the square accommodation cavity is formed in the front surface of the carrier frame.

[0012] Preferably, four moving rollers distributed in a rectangle are fixedly installed at the bottom of the carrier frame, and brake pads are installed on the moving rollers.

[0013] Preferably, a placement plate is placed on the carrier frame, and the placement plate is located on the right side of the carrier frame.

[0014] Preferably, the driving component includes a support bottom plate fixedly installed on the carrier frame. Four support columns are fixedly installed on the upper surface of the support bottom plate, and a motor box is fixedly installed at the top ends of the support columns. A driving motor is fixedly installed inside the motor box.

[0015] Preferably, the inner support component includes a threaded connection cylinder. The left end of the threaded connection cylinder is fixedly connected to the output end of the driving motor. Three guide insertion holes are formed in the threaded connection cylinder and are evenly distributed in a ring shape. A connection nut is threadedly sleeved on the outside of the threaded connection cylinder. A connection bearing is sleeved on the outside of the threaded connection cylinder, and the connection bearing is located on the right side of the connection nut. The connection nut and the connection bearing are connected through a fixing ring. The left side of the fixing ring is fixedly connected to the connection nut, and the right side of the fixing ring is fixedly connected to the outer ring of the connection bearing. Three guide insertion plates corresponding to the guide insertion holes are fixedly installed on the inner ring of the connection bearing. The guide insertion plates pass through the guide insertion holes, and one end of the guide insertion plate passing through the guide insertion hole is fixedly connected with a connection disc. Three vertical guide plates penetrate through the outside of the threaded connection cylinder. One end of the vertical guide plate located outside the threaded connection cylinder is fixedly connected with an inner support plate, and one end of the vertical guide plate located inside the threaded connection cylinder is movably connected to the connection disc through a connection diagonal bar.

[0016] Preferably, one end of the connection diagonal bar is rotatably matched with one end of the vertical guide plate located inside the threaded connection cylinder through a hinge seat, and the other end of the connection diagonal bar is rotatably matched with the connection disc through another hinge seat.

[0017] Preferably, the bearing to be measured is sleeved on the outside of the three inner support plates.

[0018] Preferably, the lifting assembly includes two symmetrically arranged fixed supports, both of which are fixedly installed inside the square accommodating cavity, a reverse threaded rod is rotatably connected between the two fixed supports, an adjusting knob is fixedly installed at the front end of the reverse threaded rod, the adjusting knob passes through the through hole, and the outer side thread of the reverse threaded rod is sleeved with two symmetrically distributed movable sliders, the lower surface of the movable slider is in contact with the inner bottom surface of the square accommodating cavity, and the lower surface of the movable slider and the inner bottom surface of the square accommodating cavity are both smooth, the lifting assembly also includes a lifting plate, the upper surface of the lifting plate is fixedly installed with two symmetrically distributed lifting plates, the top of the lifting plate is extruded with the outer ring of the bearing to be measured, and the lower surface of the lifting plate is movably connected to the upper surface of the movable slider through a connecting inclined plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention sleeves the bearing to be measured on the outside of the three inner support plates, and then rotates the connecting nut to the right. At this time, the connecting nut will drive the connecting bearing to move to the right through the fixing ring, and the guide plug plate and the connecting disc will also move to the right. Since one end of the vertical guide plate is located inside the threaded connecting cylinder and is movably connected to the connecting disc through a connecting oblique rod, when the connecting disc moves to the right, the three vertical guide plates will move away from each other, and the three inner support plates will also move away from each other. The three inner support plates can be used to position bearings to be measured of different sizes, thereby greatly improving the measurement range of the present invention.

[0021] 2. The present invention drives the reverse threaded rod to rotate by rotating the adjusting knob, thereby driving the two movable sliders to approach each other. Since the lower surface of the lifting plate and the upper surface of the movable slider are movably connected through the connecting inclined plate, when the two movable sliders approach each other, the lifting plate and the supporting plate will move upward, thereby squeezing the outer ring of the bearing to be measured. The present invention can support the bearing to be measured by setting a lifting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a device for measuring mechanical vibration of a bearing according to the present invention;

[0023] Figure 2 It is a front view of a device for measuring mechanical vibration of a bearing according to the present invention;

[0024] Figure 3 It is a structural schematic diagram of the measuring component of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the cooperation between the driving assembly and the inner support assembly of the present invention;

[0026] Figure 5It is a schematic diagram of the structure of the driving assembly of the present invention;

[0027] Figure 6 is a cross-sectional view of the inner support assembly of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the jacking assembly of the present invention.

[0029] In the figure:

[0030] 1. Measuring assembly; 101. Carrying frame; 102. Moving roller; 103. Bearing vibration measuring instrument; 104. Connecting wire; 105. Measuring contact block; 106. Placing plate; 107. Square accommodating cavity; 108. Through hole; 2. Driving assembly; 201. Supporting bottom plate; 202. Supporting column; 203. Motor box; 204. Driving motor; 3. Internal support assembly; 301. Threaded connection cylinder; 302. Guide socket ; 303, connecting nut; 304, connecting bearing; 305, fixing ring; 306, guide plug plate; 307, connecting disc; 308, vertical guide plate; 309, inner support plate; 310, connecting diagonal rod; 4, bearing to be measured; 5, lifting assembly; 501, fixed support; 502, reverse threaded rod; 503, moving slider; 504, adjusting knob; 505, lifting plate; 506, lifting plate; 507, connecting diagonal plate. DETAILED DESCRIPTION

[0031] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] As attached Figure 1 To Attachment Figure 7 As shown:

[0033] Embodiment 1:

[0034] The present invention provides a device for measuring bearing mechanical vibration, comprising:

[0035] Measuring component 1;

[0036] A driving component 2, wherein the driving component 2 is fixedly installed above the measuring component 1;

[0037] An inner support assembly 3, the inner support assembly 3 is arranged on the right side of the driving assembly 2;

[0038] The bearing 4 to be measured is detachably sleeved on the outer side of the inner support assembly 3;

[0039] A lifting assembly 5, wherein the lifting assembly 5 is arranged above the measuring assembly 1, and the lifting assembly 5 is located directly below the bearing 4 to be measured;

[0040] The measuring assembly 1 comprises a carrier 101, four rectangularly distributed moving rollers 102 are fixedly mounted on the bottom of the carrier 101, brake pads are mounted on the moving rollers 102, a bearing vibration measuring instrument 103 is embedded on the top of the carrier 101, a connecting wire 104 is fixedly connected to the bearing vibration measuring instrument 103, a measuring contact block 105 is fixedly connected to the end of the connecting wire 104 away from the bearing vibration measuring instrument 103, a placing plate 106 is placed on the carrier 101, the placing plate 106 is located on the right side of the carrier 101, a square accommodating cavity 107 is provided in the middle of the upper surface of the carrier 101, and a through hole 108 connected to the square accommodating cavity 107 is provided on the front surface of the carrier 101;

[0041] The driving assembly 2 includes a supporting base plate 201, which is fixedly mounted on the carrier frame 101. Four supporting columns 202 are fixedly mounted on the upper surface of the supporting base plate 201. A motor box 203 is fixedly mounted on the top of the supporting columns 202. A driving motor 204 is fixedly mounted inside the motor box 203.

[0042] The inner support assembly 3 includes a threaded connection tube 301, the left end of the threaded connection tube 301 is fixedly connected to the output end of the driving motor 204, three guide sockets 302 evenly distributed in an annular shape are provided on the threaded connection tube 301, a connecting nut 303 is threadedly sleeved on the outer side of the threaded connection tube 301, a connecting bearing 304 is sleeved on the outer side of the threaded connection tube 301, the connecting bearing 304 is located on the right side of the connecting nut 303, the connecting nut 303 and the connecting bearing 304 are connected by a fixing ring 305, the left side of the fixing ring 305 is fixedly connected to the connecting nut 303, the right side of the fixing ring 305 is fixedly connected to the outer ring of the connecting bearing 304, and three guide sockets 302 are fixedly installed on the inner ring of the connecting bearing 304. 2 corresponding guide plug plate 306, the guide plug plate 306 passes through the guide plug hole 302, one end of the guide plug plate 306 passing through the guide plug hole 302 is fixedly installed with a connecting disc 307, the outer side of the threaded connection cylinder 301 is penetrated by three vertical guide plates 308, one end of the vertical guide plate 308 located outside the threaded connection cylinder 301 is fixedly installed with an inner support plate 309, one end of the vertical guide plate 308 located inside the threaded connection cylinder 301 is movably connected with the connecting disc 307 through a connecting inclined rod 310, one end of the connecting inclined rod 310 is rotatably matched with one end of the vertical guide plate 308 located inside the threaded connection cylinder 301 through a hinge seat, and the other end of the connecting inclined rod 310 is rotatably matched with the connecting disc 307 through another hinge seat;

[0043] The bearing 4 to be measured is sleeved on the outer sides of the three inner support plates 309;

[0044] The jacking assembly 5 includes two symmetrically arranged fixed supports 501, and the two fixed supports 501 are fixedly installed inside the square accommodating cavity 107. A reverse threaded rod 502 is rotatably connected between the two fixed supports 501. An adjusting knob 504 is fixedly installed at the front end of the reverse threaded rod 502. The adjusting knob 504 passes through the through hole 108. The outer side of the reverse threaded rod 502 is threadedly sleeved with two symmetrically distributed moving sliders 503. The lower surface of the moving slider 503 contacts the inner bottom surface of the square accommodating cavity 107, and the lower surface of the moving slider 503 and the inner bottom surface of the square accommodating cavity 107 are both smooth. The jacking assembly 5 also includes a jacking plate 505, and two symmetrically distributed lifting plates 506 are fixedly installed on the upper surface of the jacking plate 505. The top of the lifting plate 506 is extruded with the outer ring of the bearing 4 to be measured, and the lower surface of the jacking plate 505 and the upper surface of the moving slider 503 are movably connected through a connecting inclined plate 507.

[0045] Working principle: When it is necessary to use a bearing mechanical vibration measuring device of the present invention, the staff first moves the measuring device to a suitable position through the moving roller 102, and then sleeves the bearing 4 to be measured on the outside of the three inner support plates 309, and then rotates the connecting nut 303 to the right. At this time, the connecting nut 303 will drive the connecting bearing 304 to move to the right through the fixing ring 305, and at the same time, the guide plug plate 306 and the connecting disc 307 will also move to the right. Since one end of the vertical guide plate 308 is located inside the threaded connecting tube 301 and is movably connected to the connecting disc 307 through the connecting inclined rod 310, when the connecting disc 307 moves to the right, the three vertical guide plates 308 will move away from each other, and at the same time, the three inner support plates 30 9 will also move away from each other. The three inner support plates 309 can be used to position the bearings 4 to be measured of different sizes, thereby greatly improving the measurement range of the present invention. After the bearing 4 to be measured is installed, the adjusting knob 504 is rotated, and the reverse threaded rod 502 can be driven to rotate by the adjusting knob 504, thereby driving the two movable sliders 503 to approach each other. Since the lower surface of the lifting plate 505 and the upper surface of the movable slider 503 are movably connected through the connecting inclined plate 507, when the two movable sliders 503 approach each other, the lifting plate 505 and the lifting plate 506 will move upward, thereby squeezing the outer ring of the bearing 4 to be measured, and then the measuring contact block 105 is placed on the bearing 4 to be measured, so that the bearing 4 to be measured can be measured.

[0046] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A device for measuring bearing mechanical vibration, characterized in that: include: Measuring component (1); A driving assembly (2), wherein the driving assembly (2) is fixedly mounted above the measuring assembly (1); An inner support assembly (3), wherein the inner support assembly (3) is arranged on the right side of the driving assembly (2); A bearing to be measured (4), wherein the bearing to be measured (4) is detachably sleeved on the outer side of the inner support assembly (3); A lifting assembly (5), wherein the lifting assembly (5) is arranged above the measuring assembly (1), and the lifting assembly (5) is located directly below the bearing (4) to be measured; The measuring assembly (1) comprises a support frame (101), a bearing vibration measuring instrument (103) is embedded on the top of the support frame (101), a connecting wire (104) is fixedly connected to the bearing vibration measuring instrument (103), an end of the connecting wire (104) away from the bearing vibration measuring instrument (103) is fixedly connected to a measuring contact block (105), a square accommodating cavity (107) is provided in the middle of the upper surface of the support frame (101), and a through hole (108) connected to the square accommodating cavity (107) is provided on the front surface of the support frame (101).

2. A bearing mechanical vibration measuring device as claimed in claim 1, characterized in that: Four moving rollers (102) distributed in a rectangular shape are fixedly mounted on the bottom of the support frame (101), and brake pads are mounted on the moving rollers (102).

3. A bearing mechanical vibration measuring device as claimed in claim 2, characterized in that: A placement tray (106) is placed on the carrier (101), and the placement tray (106) is located on the right side of the carrier (101).

4. A bearing mechanical vibration measuring device as claimed in claim 3, characterized in that: The driving assembly (2) comprises a supporting base plate (201), the supporting base plate (201) being fixedly mounted on the carrier frame (101), four supporting columns (202) being fixedly mounted on the upper surface of the supporting base plate (201), a motor box (203) being fixedly mounted on the top of the supporting columns (202), and a driving motor (204) being fixedly mounted inside the motor box (203).

5. A bearing mechanical vibration measuring device as claimed in claim 4, characterized in that: The inner support assembly (3) comprises a threaded connection tube (301), the left end of the threaded connection tube (301) is fixedly connected to the output end of the driving motor (204), the threaded connection tube (301) is provided with three guide holes (302) evenly distributed in an annular shape, the outer side of the threaded connection tube (301) is threadedly sleeved with a connecting nut (303), the outer side of the threaded connection tube (301) is sleeved with a connecting bearing (304), the connecting bearing (304) is located on the right side of the connecting nut (303), the connecting nut (303) and the connecting bearing (304) are connected via a fixing ring (305), the left side of the fixing ring (305) is fixedly connected to the connecting nut (303), and the right side of the fixing ring (305) is fixedly connected to the connecting nut (303). The outer ring of the connecting bearing (304) is fixedly connected, and three guide plug plates (306) corresponding to the guide plug holes (302) are fixedly installed on the inner ring of the connecting bearing (304), and the guide plug plates (306) pass through the guide plug holes (302). A connecting disc (307) is fixedly installed on one end of the guide plug plates (306) passing through the guide plug holes (302). Three vertical guide plates (308) pass through the outer side of the threaded connection cylinder (301), and an inner support plate (309) is fixedly installed on one end of the vertical guide plates (308) located on the outer side of the threaded connection cylinder (301), and one end of the vertical guide plates (308) located inside the threaded connection cylinder (301) is movably connected to the connecting disc (307) through a connecting inclined rod (310).

6. A bearing mechanical vibration measuring device as claimed in claim 5, characterized in that: One end of the connecting oblique rod (310) is rotatably matched with one end of the vertical guide plate (308) located inside the threaded connection cylinder (301) via a hinge seat, and the other end of the connecting oblique rod (310) is rotatably matched with the connecting disc (307) via another hinge seat.

7. A bearing mechanical vibration measuring device as claimed in claim 6, characterized in that: The bearing to be measured (4) is sleeved on the outer sides of the three inner support plates (309).

8. A bearing mechanical vibration measuring device as claimed in claim 7, characterized in that: The lifting assembly (5) comprises two symmetrically arranged fixed supports (501), both of which are fixedly mounted inside the square accommodating cavity (107), a reverse threaded rod (502) is rotatably connected between the two fixed supports (501), an adjusting knob (504) is fixedly mounted at the front end of the reverse threaded rod (502), the adjusting knob (504) passes through the through hole (108), and two symmetrically distributed moving sliders (503) are threadedly sleeved on the outer side of the reverse threaded rod (502), and the moving sliders (503) are rotatably connected to the inner side of the square accommodating cavity (107). 03) contacts the inner bottom surface of the square accommodating cavity (107), and the lower surface of the movable slider (503) and the inner bottom surface of the square accommodating cavity (107) are both smooth, the lifting assembly (5) also includes a lifting plate (505), and two symmetrically distributed supporting plates (506) are fixedly installed on the upper surface of the lifting plate (505), and the top of the supporting plate (506) is extruded with the outer ring of the bearing (4) to be measured, and the lower surface of the lifting plate (505) is movably connected to the upper surface of the movable slider (503) through a connecting inclined plate (507).

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