CN219511675U

CN219511675U - Medical bearing rotating noise testing device

Info

Publication number: CN219511675U
Application number: CN202223215469.6U
Authority: CN
Inventors: 郑永生
Original assignee: Luoyang Weiju Precision Machinery Co ltd
Current assignee: Luoyang Weiju Precision Machinery Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-08-11
Anticipated expiration: 2032-12-02

Abstract

The utility model discloses a medical bearing rotating noise testing device which comprises a workbench, wherein a motor base, a supporting seat and a testing box are respectively arranged on the workbench, a control panel is arranged on the side surface of the workbench, the supporting seat is fixedly connected with the testing box, an output shaft of a driving motor penetrates through the supporting seat and penetrates into the testing box to be connected with a driving shaft through a coupler, a box door is hinged to the surface of one side, far away from the driving motor, of the testing box, a decibel meter and an adjustable external fixing component for fixing an outer ring of the medical bearing are arranged on the inner wall of the testing box, an adjustable internal fixing component for fixing an inner ring of the medical bearing is arranged on the driving shaft, the medical bearing to be tested is fixed through the internal fixing component and the external fixing component, a traditional matching mode of the shaft and the bearing is replaced, the fixing procedure is simplified, the operation is simpler and quicker, and the working efficiency is improved; and the inner and outer fixing components can be adjusted, so that the device is suitable for fixing medical bearings with different inner and outer diameters, and has high universality.

Description

Medical bearing rotating noise testing device

Technical Field

The utility model relates to the technical field of medical bearing production, in particular to a medical bearing rotating noise testing device.

Background

Medical bearings are bearings for medical equipment, which in use can greatly affect the procedures of medical auxiliary examination and surgery if the noise is too loud, and the noise when the medical bearings rotate is required to be tested after production is completed so as to detect whether the use requirement can be met. In the existing bearing rotation noise testing device, most of the devices need to test the noise by matching the shaft with the bearing and then driving the bearing to rotate by the shaft, and in order to ensure the tight matching of the shaft and the bearing, the matching of the shaft and the bearing is usually interference fit, so that the matching process is complex, the operation is inconvenient, and the working efficiency is low; the types of the bearings are different in specification, and different test shafts are needed to be matched with the bearings, so that the universality of the device is low, and the bearings with various different specifications cannot be fixed and tested; meanwhile, the test is carried out in an open space during the test, and external noise is easy to interfere with the test result, so that the test on the rotating noise of the medical bearing is inaccurate, the detection precision is low, and the detection requirement of the medical bearing on low rotating noise cannot be met.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the medical bearing rotation noise testing device which simplifies the fixing procedure, is simpler and faster to operate and improves the working efficiency; and the inner and outer fixing components can be adjusted, so that the device is suitable for fixing medical bearings with different inner and outer diameters, can test the rotating noise of the medical bearings with different specifications without replacing a driving shaft, has high universality, and can effectively solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a medical bearing rotation noise testing arrangement, includes the workstation, be provided with motor cabinet, bearing seat and test box on the workstation respectively, the side surface of workstation is provided with control panel, bearing seat and test box fixed connection are installed driving motor on the motor cabinet, and driving motor's output shaft passes the bearing seat and penetrates the test box and pass through the shaft coupling and be connected with the drive shaft in, and the one side surface of keeping away from driving motor on the test box articulates there is the chamber door, install decibel meter and the adjustable external fixation subassembly that is used for fixed medical bearing outer lane on the test box inner wall, be provided with the adjustable internal fixation subassembly that is used for fixed medical bearing inner circle on the drive shaft.

As a preferable technical scheme of the utility model, the external fixing component comprises four electric push rods fixedly arranged on the inner wall of the test box, the four electric push rods are respectively arranged on the upper surface of a bottom plate, the lower surface of a top plate and the inner side surfaces of two side plates of the test box, the four electric push rods are positioned in the same plane, and an elastic pad I is fixedly arranged on the surface of the movable end side of each electric push rod.

As a preferable technical scheme of the utility model, the internal fixing assembly comprises four inclined grooves uniformly formed in the peripheral side surface of the driving shaft, sliding supporting blocks are slidably arranged in the four inclined grooves, elastic pads II are fixedly arranged at the end parts of the sliding supporting blocks, and a driving mechanism for driving the four sliding supporting blocks to synchronously move is further arranged on the driving shaft.

As a preferable technical scheme of the utility model, the driving mechanism comprises a driving ring which is arranged on the driving shaft in a sliding way, a clamping groove corresponding to the sliding supporting block is arranged on the driving ring, and the sliding supporting block penetrates through the clamping groove on the driving ring; the inside surface of drive axle has offered a plurality of spout uniformly, and the inboard surface of drive ring is fixed fixedly and is provided with a plurality of connecting rod uniformly, and the connecting rod slides in the spout and sets up, and the inside screw rod groove that has spout intercommunication of having seted up of drive axle rotates in the screw rod groove and is provided with the screw rod, and screw rod outside threaded connection has the screwed ring, and the screwed ring slides in the screw rod inslot and sets up, and the tip fixed connection of screwed ring and connecting rod, just the screw rod wears out the side surface of drive axle and with rotate handle fixed connection, is provided with fixing device on the rotation handle.

As a preferable technical scheme of the utility model, the fixing device comprises a C-shaped locating pin, and locating holes corresponding to the locating pin are formed on the side surface of the rotating handle and the side surface of the end part of the driving shaft.

Compared with the prior art, the utility model has the beneficial effects that: the medical bearing to be tested is fixed through the internal and external fixing components, so that a traditional matching mode of the shaft and the bearing is replaced, the fixing procedure is simplified, the operation is simpler and faster, and the working efficiency is improved; the inner and outer fixing assemblies can be adjusted, are suitable for fixing medical bearings with different inner and outer diameters, can test the rotation noise of the medical bearings with different specifications without replacing a driving shaft, and have high universality; the driving shaft, the inner fixing assembly, the outer fixing assembly, the medical bearing and the decibel instrument are all positioned in the airtight test box during test, so that the interference of external noise to the test of the rotation noise of the medical bearing can be greatly reduced, the detection accuracy and precision are improved, and the requirement of the test of the low rotation noise of the medical bearing is met.

Drawings

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

FIG. 2 is a schematic side view of the structure of FIG. 1 of the present utility model;

FIG. 3 is a schematic elevational view of the present utility model with the door removed from FIG. 1;

FIG. 4 is a schematic view of the structure of the drive shaft and the internal fixation assembly of the present utility model;

FIG. 5 is a schematic cross-sectional view of FIG. 4 in accordance with the present utility model;

FIG. 6 is a schematic view of a partial structure of the present utility model;

fig. 7 is a schematic partial cross-sectional view of the present utility model.

In the figure: the automatic testing device comprises a workbench 1, a driving motor 2, a driving shaft 3, a supporting seat 4, a testing box 5, a box door 6, an electric push rod 7, an elastic pad I8, a chute 9, a sliding supporting block 10, an elastic pad II 11, a driving ring 12, a chute 13, a connecting rod 14, a threaded ring 15, a screw 16, a rotating handle 17, a positioning hole 18, a positioning pin 19, a 20 dB instrument and a control panel 21.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-7, the present utility model provides a technical solution: the utility model provides a medical bearing rotational noise testing arrangement, includes workstation 1, be provided with motor cabinet, bearing frame 4 and test box 5 on the workstation 1 respectively, the motor cabinet is used for installing driving motor 2, and bearing frame 4 is used for supporting driving shaft 3 of driving motor 2, is provided with silence bearing between the bearing frame 4 between the driving shaft 3 to reduce the interference to medical bearing rotational noise test, test box 5 then is used for sealing test space, noise detection's interference when reducing outside noise to inside medical bearing rotation, thereby improve the degree of accuracy and the precision etc. of noise test, and then satisfy medical bearing low rotational noise test's requirement.

The side surface of the workbench 1 is provided with a control panel 21, the control panel 21 is electrically connected with an external power supply, the control panel 21 is powered by the external power supply, the electric push rod 7, the driving motor 2 and the decibel meter 20 are electrically connected with the control panel 21, and buttons corresponding to the electric push rod 7, the driving motor 2 and the decibel meter 20 are respectively arranged on the control panel 21.

The supporting seat 4 is fixedly connected with the test box 5, and a sound insulation device such as a sound insulation plate or a sound insulation cotton is arranged between the supporting seat 4 and the test box 5, so that noise between a bearing in the supporting seat 4 and an output shaft of the driving motor 2 is prevented from interfering with detection of rotation noise of the test bearing.

The motor seat is provided with the driving motor 2, an output shaft of the driving motor 2 penetrates through the supporting seat 4 and penetrates into the test box 5 to be connected with the driving shaft 3 through the coupler, the driving shaft 3 is used for driving the medical bearing to rotate, the inner wall of the test box 5 is provided with the decibel meter 20 and an adjustable external fixing component for fixing the outer ring of the medical bearing, the driving shaft 3 is provided with an adjustable internal fixing component for fixing the inner ring of the medical bearing, the medical bearing to be tested is fixed through the internal and external fixing component, the traditional matching mode of the shaft and the bearing is replaced, the fixing procedure is simplified, the operation is simpler and quicker, and the working efficiency is improved; the inner and outer fixing components can be adjusted, the device is suitable for fixing medical bearings with different inner and outer diameters, can test the rotation noise of the medical bearings with different specifications without replacing a driving shaft, and has high universality

A box door 6 is hinged to the surface of one side, far away from the driving motor 2, of the test box 5, and a sealing gasket is arranged between the box door 6 and the test box 5 and used for reducing interference of external noise to the inside of the test box 5.

The driving shaft 3, the internal and external fixing components, the medical bearing and the decibel meter 20 are all positioned in the sealed test box 5 during the test, so that the interference of external noise to the test of the rotation noise of the medical bearing can be greatly reduced, the detection accuracy and precision are improved, and the requirement of the test of the low rotation noise of the medical bearing is met.

Further, a display screen electrically connected to the decibel meter 20 is further disposed on the control panel 21, for displaying the decibel value of the bearing rotation noise measured by the decibel meter.

The driving motor 2, the decibel meter 20, the display screen and the like are all electronic components commonly used in the prior art, and the specific structure, the working principle, the circuit connection and the like are all known technologies and are not described in detail herein.

Specifically, the external fixation subassembly is including fixed four electric putter 7 that set up on the 5 inner walls of test box, four electric putter 7 set up respectively at the bottom plate upper surface of test box 5, roof lower surface and two curb plate inboard surfaces, just electric putter 7's expansion end side fixed surface is provided with elastic pad I8, after the fixed medical bearing of installation, through the extension of control panel 21 operation electric putter 7, makes its expansion end and medical bearing's outer lane contact and compress tightly through elastic pad I8, can fix medical bearing's outer lane.

Further, the internal section of the test box 5 is square, four electric push rods 7 are located in the same plane and are arranged around the driving shaft 3, the four electric push rods 7 are controlled by the control panel 21 and synchronously stretch, and the four electric push rods 7 synchronously stretch to fix the outer ring of the test medical bearing.

Optionally, the outside surface of elastic pad I8 is provided with anti-skidding line to increase frictional force, the outer lane of the fixed medical bearing of being convenient for.

Preferably, the internal fixation assembly comprises four chute 9 evenly arranged on the peripheral side surface of the driving shaft 3, four chute 9 and four sliding support blocks 10 are respectively arranged in the upper, lower, left and right directions and correspond to the four electric push rods 7, the sliding support blocks 10 are respectively arranged in the four chute 9 in a sliding manner, the end parts of the sliding support blocks 10 are fixedly provided with elastic pads II 11, the sliding support blocks 10 slide in the chute 9, the distance between the end parts of the sliding support blocks 10 and the axle center of the driving shaft 3 can be adjusted, so that medical bearing inner rings with different inner diameters are fixed, the medical bearing inner rings are sleeved on the outer sides of the four sliding support blocks 10, the positions of the sliding support blocks 10 are adjusted, the end parts of the medical bearing inner rings are supported by the inner rings, the medical bearing inner rings can be fixed through the elastic pads II 11, the medical bearing inner rings can be fixed by matching with the external fixation assembly, then the driving shaft 3 drives the sliding support blocks 10 to rotate, the medical bearing is driven to rotate, the box door 6 is closed during testing, the decibels 20 is opened, the noise when the medical bearing rotates is detected, the medical bearing is displayed on a display screen of the control panel 21, and whether the rotating noise meets the production requirements of the working personnel is met.

Further, four inclined grooves 9 are all arranged in a downward inclined mode towards the direction of the driving motor 2, the bottom surface of the sliding support block 10 is an inclined surface matched with the inclined grooves 9, when the sliding support block 10 moves towards the direction of the box door 6, the sliding support block 10 arranged at the bottom slowly ascends (the sliding support block 10 arranged at the bottom slowly descends), when the sliding support block 10 moves towards the direction of the driving motor 2, the sliding support block 10 arranged at the bottom slowly descends (the sliding support block 10 arranged at the bottom slowly ascends), the distance between the end and the axis of the driving shaft 3 is reduced, and the distance between the outermost end of the sliding support block 10 and the axis of the driving shaft 3 is adjusted through moving the position of the sliding support block 10, so that medical bearing inner rings with different inner diameters are fixed, the sliding support block is suitable for medical bearing noise tests with different specifications, and universality is improved.

Preferably, the driving shaft 3 is further provided with a driving mechanism for driving the four sliding support blocks 10 to synchronously move, specifically, the driving mechanism comprises a driving ring 12 slidably arranged on the driving shaft 3, a clamping groove corresponding to the sliding support blocks 10 is formed in the driving ring 12, the sliding support blocks 10 penetrate through the clamping groove in the driving ring 12, and when the driving ring 12 moves, the sliding support blocks 10 can be driven to slide in the chute 9; the inside surface of drive shaft 3 has evenly offered a plurality of spout 13, the inboard surface of drive ring 12 is evenly fixed and is provided with a plurality of connecting rod 14, connecting rod 14 is in spout 13 sliding arrangement, spout 13 and connecting rod 14 preferred quantity are four, stagger each other with four chute 9 and set up, the inside screw rod groove of having offered with spout 13 intercommunication of drive shaft 3, the rotation is provided with screw 16 in the screw rod inslot, screw 16 outside threaded connection has screwed ring 15, screwed ring 15 slides in the screw rod inslot and sets up, and screwed ring 15 and connecting rod 14's tip fixed connection, screwed ring 15 forms an entirety with drive ring 12 through connecting rod 14, screwed ring 15 and drive ring 12 are concentric, when screw 16 rotates, screwed ring 15 receives the restriction of connecting rod 14, slide back and forth in the screw rod inslot under the drive of screw thread, thereby drive ring 12 slides back and forth through connecting rod 14, and then drive sliding support piece 10 removes, can drive four sliding support piece 10 synchronization movement through the rotation of screw 16, thereby support and fix medical bearing's inner circle.

Further, the screw 16 penetrates through the side surface of the driving shaft 3 and is fixedly connected with the rotating handle 17, and the outer side surface of the rotating handle 17 is provided with anti-skid patterns so as to facilitate the rotation of the screw 16.

Preferably, a fixing device is arranged on the rotating handle 17, the fixing device comprises a C-shaped positioning pin 19, positioning holes 18 corresponding to the positioning pin 19 are formed in the side surface of the rotating handle 17 and the side surface of the end part of the driving shaft 3, and when the screw 16 needs to be adjusted, the positioning pin 19 is removed, the rotating handle 17 can rotate, so that the screw 16 is driven to rotate; after the medical bearing inner ring is fixed, the positioning pin 19 is inserted into the positioning hole 18, the rotating handle 17 is fixed, and the screw 16 is further fixed, so that the screw cannot rotate any more, namely the positions of the threaded ring 15, the driving ring 12 and the sliding support block 10 are fixed.

Further, the number of the positioning holes 18 on the rotating handle 17 is two, the positioning pins 19 are matched with the shape of a C, the number of the positioning holes 18 on the driving shaft 3 is an even number greater than 2, preferably 8 or 10, the positioning holes are on the same circumference with the two positioning holes 18 on the rotating handle 17, and the positioning pins 19 are simultaneously fixed in the two groups of positioning holes 18 so as to improve the positioning stability.

Furthermore, a buffer gasket is arranged in the positioning hole 18 on the driving shaft 3, the positioning pin 19 passes through the buffer gasket after entering the positioning hole 18, the positioning pin 19 and the positioning hole 18 are fixed by extrusion and mutual friction force, and the positioning pin 19 can be fixed by relatively large friction force between the positioning pin and the buffer gasket, so that the positioning pin 19 can not fall off, the screw 16 is fixed, the screw 16 can not rotate any more, the position of the sliding support block 10 is fixed, and the inner ring of the medical bearing is fixed.

The four inner walls (up, down, left and right) of the test box 5 are provided with sliding grooves, the fixed ends of the four electric push rods 7 are respectively arranged in the corresponding sliding grooves in a sliding way, and the positions can be manually adjusted by manpower and fixed by friction force, or can be adjusted by screws and the like which are the same as the driving mechanism of the internal fixing component. The position of the outer fixing component is adjusted to be matched with the inner fixing component, so that the inner ring and the outer ring of the medical bearing are fixed.

The non-disclosed parts of the utility model are all prior art, and the specific structure, materials and working principle thereof are not described in detail. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a medical bearing rotational noise testing arrangement, includes workstation (1), its characterized in that: be provided with motor cabinet, bearing (4) and test box (5) on workstation (1) respectively, the side surface of workstation (1) is provided with control panel (21), bearing (4) and test box (5) fixed connection install driving motor (2) on the motor cabinet, the output shaft of driving motor (2) passes bearing (4) and penetrates in test box (5) and be connected with drive shaft (3) through the shaft coupling, and one side surface of keeping away from driving motor (2) on test box (5) articulates there is chamber door (6), install decibel meter (20) and the adjustable external fixation subassembly that is used for fixed medical bearing outer lane on test box (5) inner wall, be provided with the adjustable internal fixation subassembly that is used for fixed medical bearing inner circle on drive shaft (3).

2. The medical bearing rotational noise testing apparatus of claim 1, wherein: the external fixation assembly comprises four electric push rods (7) fixedly arranged on the inner wall of the test box (5), the four electric push rods (7) are respectively arranged on the upper surface of a bottom plate, the lower surface of a top plate and the inner side surfaces of two side plates of the test box (5), the four electric push rods (7) are positioned in the same plane, and an elastic pad I (8) is fixedly arranged on the surface of the movable end side of each electric push rod (7).

3. The medical bearing rotational noise testing apparatus of claim 1, wherein: the inner fixing assembly comprises four inclined grooves (9) uniformly formed in the peripheral side surface of the driving shaft (3), sliding supporting blocks (10) are slidably arranged in the four inclined grooves (9), elastic pads II (11) are fixedly arranged at the end parts of the sliding supporting blocks (10), and driving mechanisms for driving the four sliding supporting blocks (10) to synchronously move are further arranged on the driving shaft (3).

4. A medical bearing rotational noise testing apparatus according to claim 3, wherein: the driving mechanism comprises a driving ring (12) which is arranged on the driving shaft (3) in a sliding way, a clamping groove corresponding to the sliding supporting block (10) is formed in the driving ring (12), and the sliding supporting block (10) penetrates through the clamping groove in the driving ring (12); the inside surface of drive shaft (3) has evenly offered a plurality of spout (13), and the inboard surface of drive ring (12) is evenly fixed and is provided with a plurality of connecting rod (14), and connecting rod (14) are at spout (13) interior the seting up with the screw rod groove of spout (13) intercommunication, and the screw rod inslot rotates and is provided with screw rod (16), screw rod (16) outside threaded connection has screwed ring (15), and screwed ring (15) slide the setting in the screw rod groove, and the tip fixed connection of screwed ring (15) and connecting rod (14), just screw rod (16) wear out the side surface of drive shaft (3) and with rotate handle (17) fixed connection, are provided with fixing device on rotation handle (17).

5. The medical bearing rotational noise testing apparatus of claim 4, wherein: the fixing device comprises a C-shaped locating pin (19), and locating holes (18) corresponding to the locating pin (19) are formed in the side surface of the rotating handle (17) and the side surface of the end part of the driving shaft (3).