CN210690255U

CN210690255U - Bearing fatigue resistance detection device

Info

Publication number: CN210690255U
Application number: CN201920783743.9U
Authority: CN
Inventors: 尚亚民; 徐连江; 刘川; 刘刚
Original assignee: Guizhou Yuandong Transmission Machinery Co ltd
Current assignee: Guizhou Yuandong Transmission Machinery Co ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-06-05
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses a bearing fatigue resistance detection device relates to bearing processing technology field, which comprises a frame, the top fixedly connected with ceiling of frame, the inside of frame is rotated and is connected with quantity and is three axis of rotation, the top of axis of rotation runs through the frame and extends to the top of frame, the surface cover of axis of rotation is equipped with first gear, the inner wall bottom fixed mounting of frame has the motor, the output shaft fixedly connected with second gear of motor, the surface engagement of second gear is connected with the gear area, the gear area is connected with first gear engagement. The utility model discloses can detect the anti fatigue strength of bearing, avoid the relatively poor product of quality to directly put into market, reduce the possibility because of using the equipment damage that low-quality bearing caused, it is relatively poor to have solved bearing strength, damages very easily during follow-up use, changes not only consuming time power, and can influence the problem of equipment normal use.

Description

Bearing fatigue resistance detection device

Technical Field

The utility model relates to a bearing processing technology field specifically is a bearing fatigue resistance detection device.

Background

The bearing is a part for fixing and reducing the friction coefficient of load in the process of mechanical transmission, namely, a part for reducing the friction coefficient in the process of power transmission and keeping the center position of a shaft fixed when other parts move relatively to each other on the shaft, and the bearing is a light-weight part in the contemporary mechanical equipment, and the main function of the bearing is to support a mechanical rotating body for reducing the friction coefficient of mechanical load in the process of transmission of the equipment.

The Chinese patent discloses a bearing appearance size detection machine (publication number is CN207472800U), the device replaces the human eye to realize the automated inspection to the bearing, workman's both eyes have been liberated, workman's intensity of labour has been reduced, simultaneously can effectively improve the detection efficiency of bearing, it is high to detect the precision, therefore, the clothes hanger is strong in practicability, but only detect the appearance size of bearing and can not detect the intensity of bearing, the anti fatigue strength of bearing itself influences its long-term life of follow-up use, if bearing intensity is relatively poor, damage very easily during follow-up use, change not only consuming time power, and can influence the normal use of equipment, consequently, technical staff in the field provides a bearing anti fatigue strength detection device, in order to solve the problem that proposes in the above-mentioned background art.

Disclosure of Invention

An object of the utility model is to provide a bearing fatigue resistance detection device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a bearing fatigue strength detection device comprises a rack, wherein the top of the rack is fixedly connected with a ceiling, the inside of the rack is rotatably connected with three rotating shafts, the top of each rotating shaft penetrates through the rack and extends to the upper part of the rack, a first gear is sleeved on the surface of each rotating shaft, a motor is fixedly installed at the bottom of the inner wall of the rack, an output shaft of the motor is fixedly connected with a second gear, the surface of the second gear is meshed with a gear belt, the gear belt is meshed with the first gear and is connected with a placing seat, the top of each rotating shaft is fixedly connected with a retaining ring, the inner wall of the placing seat is fixedly connected with a retaining ring, the outer side of the placing seat is in threaded connection with a threaded rod, the threaded rod penetrates through the placing seat and is rotatably connected with an arc-shaped clamping plate, the top of the ceiling is fixedly provided with two air cylinders, the bottom of the pressing plate is fixedly connected with a buffer device, the bottom of the buffer device is fixedly connected with a pressing rod, the bottom of the pressing rod is arranged to be in a round table shape, and the surface of the pressing rod is in threaded connection with a pressing sleeve.

As a further aspect of the present invention: one side of the ceiling is hinged with a turnover door, and the turnover door is a transparent plastic material component.

As a further aspect of the present invention: the rotary table is characterized in that the bottom of the inner wall of the rack is fixedly connected with three rotary seats, needle roller bearings are arranged in the rotary seats, the rotary shaft is rotatably connected with the rotary seats through bearings, the joints of the rotary shaft and the rack are also provided with bearings, and the inner edges of the needle roller bearings are sleeved with the rotary shaft.

As a further aspect of the present invention: the quantity of threaded rod is four, four the threaded rod annular distribution is around placing the seat, the bottom and the fender ring contact of arc cardboard, the arc cardboard is the rubber materials component, and the inner wall of arc cardboard is provided with the strengthening rib.

As a further aspect of the present invention: one side of placing the seat intercommunication has the waste pipe of arranging that is located to keep off the ring inside, arrange waste pipe and be the slope form, and arrange that the contained angle between waste pipe and the horizontal direction is thirty degrees.

As a further aspect of the present invention: buffer, buffer is including the buffing pad, the inner wall fixedly connected with spring of buffing pad, the coefficient of stiffness of spring is NM, the bottom fixedly connected with connecting rod of spring, connecting rod and depression bar fixed connection, the equal fixedly connected with stopper in both sides of connecting rod, the inner wall fixedly connected with spacing groove of buffing pad, stopper and spacing groove phase-match.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by arranging the pressure lever, when the bearing is detected, the bearing is placed in the placing seat, the retaining ring supports the bearing, then the threaded rod is rotated, the arc-shaped clamping plate is pushed to move when the threaded rod rotates, so that the arc-shaped clamping plate clamps the bearing, the arc-shaped clamping plate can be used for the bearings with different sizes by being arranged in a movable mode, then the air cylinder is started, the air cylinder works to push the pressure plate to move downwards, the pressure plate drives the pressure lever to move downwards through the buffer device, the pressure lever is inserted into the inner edge of the bearing and is matched with the pressure sleeve to apply pressure to the inner ring of the bearing, so that the compressive strength between the inner ring and the outer ring of the bearing can be judged, the effective moving stroke of the air cylinder is arranged in a range which the bearing cannot be crushed, the pressure lever and the pressure sleeve cannot easily crush the bearing by being matched with the buffer of the buffer device, when a large batch of products are detected, a, calculating the overall yield of the batch of products according to the detection result of the sampling data;

2. by arranging the rotating shaft, after the pressure rod and the pressure sleeve exert pressure on the inner ring of the bearing, the motor is started, the motor works to drive the second gear to rotate, the second gear drives the first gear to rotate through the gear belt, so that the rotating shaft can rotate, the rotating shaft rotates to drive the placing seat to rotate, because the arc-shaped clamping plate fixes the bearing and the placing seat, when the placing seat rotates, the bearing rotates along with the placing seat, so that when the bearing detects the compressive strength, the inner ring and the outer ring of the bearing rotate relatively, after the motor rotates for a period of time, if the bearing is always kept in the initial state, the strength of the bearing is qualified, if the bearing has the phenomenon that the balls fall off and the like, the bearing is unqualified, the strength of the bearing can be effectively detected in the whole process, and the condition that the unqualified product is put into use and equipment is easily damaged is avoided;

3. through setting up rotation seat and ball bearing, can injecing the position of axis of rotation, can not rock or phenomenon such as slope when making it rotate, and through setting up the waste discharge pipe, after the detection finishes, if the phenomenon that inside ball drops appears in the bearing, can open the waste discharge pipe, make the ball roll out from waste discharge pipe, and will arrange waste discharge pipe and set to the slope form, made things convenient for rolling of ball to fall, it is more convenient to take out.

Drawings

FIG. 1 is a schematic structural diagram of a bearing fatigue strength testing device;

FIG. 2 is a sectional view of a bearing fatigue strength testing apparatus;

FIG. 3 is an enlarged view of the fatigue strength testing apparatus of FIG. 1 at A;

FIG. 4 is a schematic structural diagram of a damping device in the fatigue strength testing apparatus for a bearing;

fig. 5 is a plan view of a first gear in the bearing fatigue strength detection device.

In the figure: 1. a frame; 2. a ceiling; 3. turning over the door; 4. a rotating shaft; 5. a first gear; 6. a motor; 7. a second gear; 8. a gear belt; 9. a rotating seat; 10. a placing seat; 11. a baffle ring; 12. a threaded rod; 13. an arc-shaped clamping plate; 14. a waste discharge pipe; 15. a cylinder; 16. pressing a plate; 17. a buffer device; 171. a buffer seat; 172. a spring; 173. a connecting rod; 18. a pressure lever; 19. and (5) pressing the sleeve.

Detailed Description

Referring to fig. 1 to 5, in an embodiment of the present invention, a bearing fatigue strength testing apparatus includes a frame 1, a ceiling 2 is fixedly connected to a top of the frame 1, three rotating shafts 4 are rotatably connected to an inside of the frame 1, a top of the rotating shaft 4 penetrates the frame 1 and extends to a top of the frame 1, a first gear 5 is sleeved on a surface of the rotating shaft 4, a motor 6 (model Y90L-4) is fixedly installed at a bottom of an inner wall of the frame 1, a second gear 7 is fixedly connected to an output shaft of the motor 6, a gear belt 8 is engaged with a surface of the second gear 7, the gear belt 8 is engaged with the first gear 5, a placing seat 10 is fixedly connected to a top of the rotating shaft 4, a retaining ring 11 is fixedly connected to an inner wall of the placing seat 10, a threaded rod 12 is connected to an outer side of the placing seat 10 by a thread, the threaded rod 12 penetrates the, the ceiling 2 is fixedly provided with two air cylinders 15 (the model is CDA2B40-214) at the top, the bottom of each air cylinder 15 penetrates through the ceiling 2 and is fixedly connected with a pressure plate 16, the bottom of each pressure plate 16 is fixedly connected with a buffer device 17, the bottom of each buffer device 17 is fixedly connected with a pressure rod 18, the bottom of each pressure rod 18 is arranged to be in a circular truncated cone shape, and the surface of each pressure rod 18 is connected with a pressure sleeve 19 in a threaded manner.

In the embodiment, when the bearing is detected, the bearing is placed in the placing seat 10, the retaining ring 11 supports the bearing, the threaded rod 12 is rotated, the threaded rod 12 pushes the arc-shaped clamping plate 13 to move when rotating, so that the arc-shaped clamping plate 13 clamps the bearing, the arc-shaped clamping plate 13 is arranged in a movable type, the bearing can be used for bearings with different sizes, then the air cylinder 15 is started, the air cylinder 15 works to push the pressing plate 16 to move downwards, the pressing plate 16 drives the pressing rod 18 to move downwards through the buffer device 17, so that the pressing rod 18 is inserted into the inner edge of the bearing, and the inner ring of the bearing is pressed by the pressing sleeve 19, so that the compressive strength between the inner ring and the outer ring of the bearing can be judged, the effective stroke of the downward movement of the air cylinder 15 is set in the range that the bearing cannot be crushed, the buffer of the buffer device 17 is matched, so that the pressing rod 18 and the, when a large batch of products are detected, a sampling detection method can be adopted for the large batch of bearings, the integral yield of the batch of products is calculated according to the detection result of sampling data, after the pressure rod 18 and the pressure sleeve 19 apply pressure to the inner ring of the bearing, the motor 6 is started, the motor 6 works to drive the second gear 7 to rotate, the second gear 7 drives the first gear 5 to rotate through the gear belt 8, so that the rotating shaft 4 can rotate, the rotating shaft 4 rotates to drive the placing seat 10 to rotate, because the arc-shaped clamping plate 13 fixes the bearing and the placing seat 10, when the placing seat 10 rotates, the bearing rotates along with the placing seat 10, so that when the bearing detects the compressive strength, the inner ring and the outer ring of the bearing rotate relatively, after the motor 6 rotates for a period of time, if the bearing always keeps the initial state, the bearing is qualified in falling strength, if the bearing has the phenomenon of balls and the like, the bearing is unqualified, the strength of the bearing can be effectively detected in the whole process, and the condition that the unqualified product is put into use and equipment is easily damaged is avoided.

Referring to fig. 1 to 5, a side of a ceiling 2 is hinged with a turnover door 3, the turnover door 3 is made of transparent plastic material, and by arranging the turnover door 3, the turnover door 3 can be closed in the detection process, so as to prevent the ball from splashing and accidentally injuring an operator, and the turnover door 3 is made of transparent plastic material, so that the operator can observe the detection situation at any time, the bottom of the inner wall of the rack 1 is fixedly connected with three rotating seats 9, needle roller bearings are arranged inside the rotating seats 9, the rotating shaft 4 is rotatably connected with the rotating seats 9 through bearings, and the joints of the rotating shaft 4 and the rack 1 are also provided with bearings, the inner edges of the needle roller bearings are sleeved with the rotating shaft 4, and by arranging the rotating seats 9 and the ball bearings, the position of the rotating shaft 4 can be limited, so that the rotating shaft can not shake or incline when rotating.

Wherein, the number of the threaded rods 12 is four, the four threaded rods 12 are annularly distributed around the placing seat 10, the bottom of the arc-shaped clamping plate 13 is contacted with the baffle ring 11, the arc-shaped clamping plate 13 is a rubber material component, the inner wall of the arc-shaped clamping plate 13 is provided with reinforcing ribs, the threaded rods 12 are annularly distributed, the arc-shaped clamping plate 13 can fix the periphery of the bearing, the rubber material can increase the friction between the arc-shaped clamping plate 13 and the bearing, thereby the fixing effect of the bearing is better, the reinforcing ribs play a role of enhancing the strength of the arc-shaped clamping plate 13, the use of the bearing is more durable, one side of the placing seat 10 is communicated with a waste discharge pipe 14 positioned inside the baffle ring 11, the waste discharge pipe 14 is inclined, the included angle between the waste discharge pipe 14 and the horizontal direction is thirty degrees, after the detection is finished, if the phenomenon that the balls inside the bearing drop occurs, the waste discharge pipe 14 can, the ball rolls out of the waste discharge pipe 14, and the waste discharge pipe 14 is arranged to be inclined, so that the ball can roll down conveniently and can be taken out more conveniently.

Wherein, the buffer device 17 comprises a buffer seat 171, the inner wall of the buffer seat 171 is fixedly connected with a spring 172, the stiffness coefficient of the spring 172 is 2000N/M, the bottom of the spring 172 is fixedly connected with a connecting rod 173, the connecting rod 173 is fixedly connected with a pressure rod 18, both sides of the connecting rod 173 are fixedly connected with limit blocks, the inner wall of the buffer seat 171 is fixedly connected with limit grooves, the limit blocks are matched with the limit grooves, when the pressing rod 18 and the pressing sleeve 19 press the bearing, the pressing rod 18 presses the spring 172 through the connecting rod 173, thereby, when the pressure rod 18 applies pressure to the bearing, the bearing is not directly crushed due to overlarge pressure, and the bearing slides in the limiting groove through the limiting block, the connecting rod 173 can be limited, so that when the placing base 10 rotates, the connecting rod 173 cannot rotate together with the connecting rod, and the inner ring and the outer ring of the bearing can rotate relatively.

The utility model discloses a theory of operation is: when the bearing is detected, the bearing is placed in the placing seat 10, the retaining ring 11 supports the bearing at the moment, then the threaded rod 12 is rotated, the threaded rod 12 pushes the arc-shaped clamping plate 13 to move when rotating, so that the arc-shaped clamping plate 13 clamps the bearing, the arc-shaped clamping plate 13 is arranged in a movable type, the bearing can be used for bearings with different sizes, then the air cylinder 15 is started, the air cylinder 15 pushes the pressing plate 16 to move downwards when working, the pressing plate 16 drives the pressing rod 18 to move downwards through the buffer device 17, so that the pressing rod 18 is inserted into the inner edge of the bearing, the inner ring of the bearing is pressed by matching with the pressing sleeve 19, the compression strength between the inner ring and the outer ring of the bearing can be judged, the effective stroke of downward movement of the air cylinder 15 is arranged in the range that the bearing cannot be crushed, the buffer of the buffer device 17 is matched, so that the pressing rod 18 and the pressing sleeve 19 cannot easily crush, the sampling detection method can be adopted for a large batch of bearings, the integral yield of the batch of products is calculated according to the detection result of sampling data, after the pressure rod 18 and the pressure sleeve 19 apply pressure to the inner ring of the bearing, the motor 6 is started, the motor 6 works to drive the second gear 7 to rotate, the second gear 7 drives the first gear 5 to rotate through the gear belt 8, so that the rotating shaft 4 can rotate, the rotating shaft 4 rotates to drive the placing seat 10 to rotate, the arc-shaped clamping plate 13 fixes the bearing and the placing seat 10, when the placing seat 10 rotates, the bearing rotates along with the placing seat 10, so that when the bearing performs the compression strength detection, the inner ring and the outer ring of the bearing rotate relatively, after the motor 6 rotates for a period of time, if the bearing is always kept in an initial state, the strength of the bearing is qualified, if the phenomenon of ball falling occurs, the bearing is unqualified, the whole process can effectively detect the strength of the bearing, so that the condition that unqualified products are put into use and equipment is easily damaged is avoided.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The bearing fatigue strength detection device comprises a rack (1), wherein the top of the rack (1) is fixedly connected with a ceiling (2), and the bearing fatigue strength detection device is characterized in that the rack (1) is rotatably connected with three rotating shafts (4), the top of each rotating shaft (4) penetrates through the rack (1) and extends to the upper part of the rack (1), a first gear (5) is sleeved on the surface of each rotating shaft (4), a motor (6) is fixedly installed at the bottom of the inner wall of the rack (1), a second gear (7) is fixedly connected with an output shaft of the motor (6), a gear belt (8) is connected with the surface of the second gear (7) in a meshed manner, the gear belt (8) is connected with the first gear (5) in a meshed manner, a placing seat (10) is fixedly connected with the top of the rotating shaft (4), and a retaining ring (11) is fixedly connected with the inner wall of the placing seat (10), the utility model discloses a ceiling structure, including place seat (10), threaded rod (12) run through place seat (10) and swivelling joint have arc cardboard (13), the top fixed mounting of ceiling (2) has cylinder (15) that quantity is two, the bottom of cylinder (15) runs through ceiling (2) and fixedly connected with clamp plate (16), the bottom fixedly connected with buffer (17) of clamp plate (16), the bottom fixedly connected with depression bar (18) of buffer (17), the bottom of depression bar (18) sets into the round platform shape, the surperficial threaded connection of depression bar (18) has pressure cover (19).

2. The bearing fatigue strength detection device according to claim 1, wherein a turnover door (3) is hinged to one side of the ceiling (2), and the turnover door (3) is a transparent plastic material component.

3. The bearing fatigue strength detection device according to claim 1, wherein three rotating seats (9) are fixedly connected to the bottom of the inner wall of the frame (1), a needle bearing is arranged inside each rotating seat (9), the rotating shaft (4) is rotatably connected with the rotating seat (9) through a bearing, a bearing is also arranged at the joint of the rotating shaft (4) and the frame (1), and the inner edge of the needle bearing is sleeved with the rotating shaft (4).

4. The bearing fatigue strength detection device as recited in claim 1, wherein the number of the threaded rods (12) is four, four threaded rods (12) are annularly distributed around the placing base (10), the bottom of the arc-shaped clamping plate (13) is in contact with the baffle ring (11), the arc-shaped clamping plate (13) is a rubber material member, and the inner wall of the arc-shaped clamping plate (13) is provided with a reinforcing rib.

5. The bearing fatigue strength detection device according to claim 1, wherein one side of the placing seat (10) is communicated with a waste discharge pipe (14) positioned inside the baffle ring (11), the waste discharge pipe (14) is inclined, and an included angle between the waste discharge pipe (14) and a horizontal direction is thirty degrees.

6. The bearing fatigue strength detection device according to claim 1, wherein the buffer device (17) comprises a buffer seat (171), a spring (172) is fixedly connected to an inner wall of the buffer seat (171), the stiffness coefficient of the spring (172) is 2000N/M, a connecting rod (173) is fixedly connected to the bottom of the spring (172), the connecting rod (173) is fixedly connected to the compression rod (18), limit blocks are fixedly connected to both sides of the connecting rod (173), limit grooves are fixedly connected to the inner wall of the buffer seat (171), and the limit blocks are matched with the limit grooves.