A high precision bearing seat

Abstract

The present invention relates to the technical field of bearing seats, and in particular to a high-precision bearing seat, comprising a base, a top cover being detachably installed on the top of the base, two front and rear connecting seats being respectively arranged at the left and right ends of the base and the top cover, a notch being provided on the top cover, and a precision self-testing mechanism being provided on the top cover, the precision self-testing mechanism comprising a first precision detection roller installed in the notch, the rolling surface of the first precision detection roller being coincident with the inner cavity surface of the top cover; the front end of the first precision detection roller penetrates to the outside of the front side of the top cover, and when the bearing is fixed in the assembly hole, its outer ring is synchronously corrected by friction with the first precision detection roller, so when the bearing is finally fixed in the assembly hole, it is ensured that the bearing will not be deflected, and finally, because the coincident surfaces of the top cover and the base are completely coincident and locked, the assembly hole is completely changed into a circle, and the inner ring of the bearing and the hole center of the assembly hole can also be ensured to be on the same axis, that is, the precision of the bearing after being fixed in the bearing seat is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bearing seats, and in particular to a high-precision bearing seat. Background Art

[0002] The bearing seat is a part used to install bearings. It is called a bearing seat because it consists of a top cover and a base. There are fixing holes on the base to fix the bearing seat to the mechanical equipment. A circular bearing space is formed between the top cover and the base to fix the bearing. In most cases, in order to make the transmission shaft rotate smoothly, it is often necessary to install a bearing at each end of the transmission shaft. Then, in order to make the two bearings stable and fixed, it is often necessary to install two bearing seats on the mechanical equipment to fix the two bearings.

[0003] Before installing the bearing into the bearing seat, you need to disassemble the top cover first, then install the bearing in the base, and finally fix the top cover to the base with bolts, while fixing the bearing between the top cover and the base.

[0004] However, in order to smoothly assemble the bearing into the assembly hole of the bearing seat, the hole size of the assembly hole is often larger than the bearing. After the bearing is assembled into the assembly hole and the bearing seat is locked, it is often found that the bearing is skewed, which will make it difficult to assemble the drive shaft through the two bearings to the two bearing seats. Repeatedly opening the bearing seat to adjust the bearing installation method will affect the assembly efficiency. Summary of the invention

[0005] In order to improve the assembly efficiency and the precision of the bearing when being installed in the bearing seat, the present invention provides a high-precision bearing seat, including a base, a top cover is detachably installed on the top of the base, two groups of front and rear connecting seats are respectively arranged at the left and right ends of the base and the top cover, a notch is opened on the top cover, and the inner end of the notch is connected with the inner wall of the top cover up and down;

[0006] The top cover is provided with a precision self-testing mechanism, which includes a first precision testing roller installed in the notch, and the rolling surface of the first precision testing roller coincides with the inner cavity surface of the top cover;

[0007] The front end of the first precision detection roller extends beyond the front side of the top cover, and a sleeve roller is fixed at the front end of the first precision detection roller. The precision self-testing mechanism also includes a flange sleeved on the sleeve roller, a sleeve slidably matched on the sleeve roller is provided on the flange, a spring pin is installed in the vertical direction of the sleeve, and the inner end of the spring pin extends into the sleeve;

[0008] The precision self-testing mechanism also includes a second precision detection roller sleeved on the sleeve roller, the second precision detection roller is located on the front side of the flange and the front side of the top cover, a plug rod extending horizontally backward is fixed to the rear end of the second precision detection roller, and a first plug hole which is in the same straight line as the plug rod and the spring pin is opened on the flange; when the second precision detection roller moves backward, the plug rod is passed through the first plug hole and pushed onto the spring pin, so that the pin rod of the spring pin moves and pushes onto the sleeve roller, so as to lock the flange on the sleeve roller, and at the same time connect the second precision detection roller to the flange through a plug rod; at this time, when the second precision detection roller rotates, the plug rod drives the flange to rotate, the flange drives the sleeve roller to rotate, and the sleeve roller drives the first precision detection roller to rotate;

[0009] The precision self-testing mechanism also includes an oil bag mounted on the sleeve roller, one end of the oil bag is connected to the flange, and the other end is connected to the second precision detection roller. A drip hole is opened on the top cover, and an oil pipe is connected between the drip hole and the oil bag. The oil bag is filled with colored oil, and the inner end of the drip hole passes through the inner wall of the top cover. When the second precision detection roller moves backward, the oil bag is squeezed, so that the colored oil in the oil bag enters the drip hole through the oil pipe and drips onto the bearing from the inner end of the drip hole.

[0010] Preferably, an oil nozzle is installed at the top of the oil bag, and the oil bag is filled with steel wire. An assembly hole for assembling the bearing is formed between the base and the top cover, the axis of the first precision detection roller is parallel to the axis of the assembly hole, the bearing is installed in the assembly hole, and the transmission shaft is installed on the bearing, the diameter edge of the second precision detection roller is close to the outer wall of the transmission shaft in the radial direction of the transmission shaft, and the diameter edge of the second precision detection roller is rubber.

[0011] Preferably, the inner wall surface of the top cover is arc-shaped, an oil channel is opened along the middle of the arc-shaped inner wall of the top cover, the inner end of the drip hole passes through the oil channel, and the two ends of the oil channel respectively reach the two sides of the slot along the arc-shaped inner wall of the top cover.

[0012] Preferably, a deep groove is provided along the circumferential surface of the first precision detection roller, the deep groove is located on the oil outlet path of the oil channel, and the bottom of the deep groove is higher than the oil channel.

[0013] Preferably, a buckle cover is installed on the notch, and the buckle cover is a transparent cover.

[0014] Preferably, the rear side of the second precision detection roller is parallel to the front side of the top cover.

[0015] Preferably, the front and rear ends of the slot are each inlaid with a rotating sleeve on the same straight line, the rear end of the first precision detection roller is mounted on the rear rotating sleeve, and the front end of the first precision detection roller passes through and is mounted on the front rotating sleeve.

[0016] Preferably, a plurality of weight-reducing holes are provided on the second precision detection roller.

[0017] Preferably, three parallel screws are installed in a circular array on the front end surface of the flange facing the second precision detection roller, and the screws are also parallel to the axis of the bearing seat. Three second holes are opened in the circular array on the second precision detection roller, and the three screws are respectively inserted into the three second holes. A limit nut is installed at the front end of each screw; the length of the insertion rod is less than the length of the screw, and the screw is only provided with an external thread for installing the limit nut at the front end, and the rear section of the screw is the optical axis.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. A notch is provided on the top cover of the bearing seat, and a first precision detection roller is provided in the notch to correct whether the bearing is deflected to the left, right, front or back during installation. The front side of the first precision detection roller is a detection component composed of a flange, a spring pin and a second precision detection roller. After the operator places the bearing in the assembly hole of the bearing seat, the left and right groups of bolts are slowly tightened. Each time the bolts are tightened, the operator pushes the second precision detection roller backward, and the second precision detection roller pushes the plunger backward. Each time the plunger enters the first insertion hole, the rear end of the plunger squeezes the spring pin once. The spring pin is squeezed and locks the flange to the sleeve roller once. The second precision detection roller also squeezes the oil bag backward to compress and discharge the oil once, and injects the colored oil into the drip hole through the oil pipe once. The second precision detection roller pushes backward. When rotating, the second precision detection roller will drive the flange to rotate, the flange will drive the sleeve roller to rotate, and the sleeve roller will drive the first precision detection roller to rotate. If the first precision detection roller can rub the outer ring of the bearing when it rotates, and the outer ring drives the entire bearing to rotate in the assembly hole, it proves that the outer cylindrical surface of the first precision detection roller is completely in contact with the outer wall surface of the bearing when it rotates one circle, that is, the outer wall surface of the bearing has the opportunity to receive the rolling friction of the first precision detection roller, and the bearing does not deflect forward, backward, left or right in the assembly hole at this time. Slowly tighten the bolts, and at the same time rotate the first precision detection roller to rub the bearing and rotate until the bolts are completely tightened and the outer ring of the bearing is completely locked in the assembly hole. Because the outer ring of the bearing is completely fixed, the first precision detection roller no longer rotates, which proves that the bearing is fixed in the bearing seat and the fixed bearing is not deflected. If the rotation of the first precision detection roller cannot rotate with friction against the bearing during loosening adjustment, it proves that the bearing is tilted in the assembly hole at this time, and its outer cylindrical surface is not completely contacted by the rotating first precision detection roller. It is necessary to adjust the tightness of the four bolts on the left and right connecting seats in turn, adjust the angle of the bearing in the assembly hole, and rotate the second precision detection roller again until the first precision detection roller is adjusted to rotate with friction against the bearing.

[0020] 2. In order to improve the identification effect, if the bearing can smoothly complete a full rotation, the colored oil dripping on the bearing will leave a full circle track on the outer wall of the bearing. Conversely, if the bearing fails to complete a full rotation, the colored oil dripping on the bearing cannot leave a full circle track. These two intuitive detection methods are used to correct whether the bearing is skewed forward, backward, left or right in the assembly hole. It can be seen that when the bearing is fixed in the assembly hole, its outer ring is rubbed by the first precision detection roller for synchronous correction. Therefore, when the bearing is finally fixed in the assembly hole, it is ensured that the bearing will not be skewed. Finally, because the overlapping surfaces of the top cover and the base are completely overlapped and locked, the assembly hole is completely turned into a circle, and the inner ring of the bearing and the center of the assembly hole can also be ensured to be on the same axis, that is, the accuracy of the bearing after being fixed in the bearing seat is improved.

[0021] 3. The installation accuracy is improved when the bearing is installed into the bearing seat. The bearing on the other side is assembled to the bearing seat on the other side in the same way. Next, the transmission shaft is installed on the inner rings of the two bearings. Finally, the bolts on the left and right connecting seats are tightened one by one in a diagonal locking manner, and the outer ring of the bearing no longer rotates. After completing the above inspection, pull the second precision inspection roller forward to disengage the insertion rod from the flange and the spring pin at the same time. At this time, the spring pin no longer locks the flange on the sleeve roller, and the second precision inspection roller resets forward, which changes the oil bag from compression to tension and lengthens, and uses the oil nozzle to replenish colored oil into the oil bag. At the same time, because the spring pin no longer locks the flange on the sleeve roller, the second precision inspection roller will be free on the sleeve roller, and the second precision inspection roller can rotate independently on the sleeve roller. At this time, let the assembled transmission shaft rotate independently to observe whether its outer cylindrical surface can fully contact the outer cylindrical surface of the second precision inspection roller when the transmission shaft rotates one circle. If the transmission shaft cannot completely drive the second precision inspection roller to rotate after one circle, it proves that the transmission shaft is deflected between the two bearings. At this time, the second precision inspection roller, which has returned to its position forward, has the detection function of detecting whether the transmission shaft is eccentric, and the installation accuracy of the transmission shaft can also be detected during assembly.

[0022] The second precision detection roller is not only used to make the flange drive the sleeve roller, and the sleeve roller drives the first precision detection roller to rotate, which makes the operation more labor-saving, but also when the second precision detection roller moves forward, it can compress the oil bag to provide colored oil to the outer ring of the bearing, which has an intuitive detection effect; and after the second precision detection roller completes the bearing inspection, it can also correct whether the drive shaft is eccentric after retreating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the principle structure of a high-precision bearing seat provided by an embodiment of the present invention when in use;

[0024] Figure 2 A high-precision bearing seat provided in an embodiment of the present invention is composed of Figure 1 A schematic diagram from another perspective;

[0025] Figure 3 A high-precision bearing seat provided in an embodiment of the present invention is composed of Figure 2 A schematic diagram of another viewing angle with a transparent cover installed;

[0026] Figure 4 A high-precision bearing seat provided in an embodiment of the present invention is composed of Figure 1 The side view of the plane structure is shown;

[0027] Figure 5 A high-precision bearing seat provided in an embodiment of the present invention is composed of Figure 3 The enlarged schematic diagram of the A part is shown in FIG.

[0028] Figure 6 A high-precision bearing seat provided in an embodiment of the present invention is composed of Figure 4 An enlarged schematic diagram of part B is shown in FIG.

[0029] In the figure: 1. base; 2. top cover; 3. connecting seat; 4. notch; 5. precision self-test mechanism; 6. drip hole; 7. oil bag; 8. first precision detection roller; 9. sleeve roller; 10. flange; 11. spring pin; 12. second precision detection roller; 13. plug rod; 14. first plug hole; 15. oil channel; 16. deep groove; 17. buckle cover; 18. swivel sleeve; 19. weight reduction hole; 21. screw; 22. second plug hole; 23. limit nut; 24. oil pipe; 25. sliding sleeve; 26. oil nozzle; 27. assembly hole. DETAILED DESCRIPTION

[0030] The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0031] In one embodiment, Figure 1-Figure 6 As shown:

[0032] A high-precision bearing seat provided in this embodiment includes a base 1, a top cover 2 is detachably installed on the top of the base 1, and two groups of front and rear connecting seats 3 are respectively provided at the left and right ends of the base 1 and the top cover 2. An assembly hole 27 for assembling the bearing is formed between the base 1 and the top cover 2. This is a general structure of an existing bearing seat. Before the bearing is assembled into the assembly hole 27, the bolts on the left and right connecting seats 3 are loosened and the top cover 2 is removed from the base 1, or the bolts on the left and right connecting seats 3 are loosened and the top cover 2 is separated upward. After the assembly hole 27 is adjusted to be larger than the bearing, the bearing is placed in the assembly hole 27, and finally the bolts on the left and right connecting seats 3 are tightened respectively to fix the bearing. In addition, the present invention opens a slot 4 on the top cover 2, and the inner end of the slot 4 is connected to the inner wall of the top cover 2 up and down; a precision self-testing mechanism 5 is arranged on the top cover 2, and the precision self-testing mechanism 5 includes a first precision detection roller 8 installed in the slot 4, and the axis of the first precision detection roller 8 is parallel to the assembly hole 27, and the rolling surface of the first precision detection roller 8 coincides with the inner cavity surface of the top cover 2; after the bearing is assembled into the assembly hole 27 (the bolts on the left and right connecting seats 3 are not tightened), the first precision detection roller 8 is rotated. At this time, since the bearing has not been completely locked in the assembly hole 27, when the first precision detection roller 8 rotates, it will use its rolling surface to rub the bearing and rotate in the assembly hole 27.

[0033] The front end of the first precision detection roller 8 passes through the front side of the top cover 2, and a sleeve roller 9 is fixed to the front end of the first precision detection roller 8. In essence, the rotating shaft of the front end of the first precision detection roller 8 extends out of the front side of the top cover 2, and then the sleeve roller 9 is sleeved and fixed on its front end rotating shaft. When the first precision detection roller 8 rotates, it will also rotate with the sleeve roller 9, that is, when the sleeve roller 9 rotates, it will rotate with the first precision detection roller 8. The precision self-testing mechanism 5 also includes a flange 10 sleeved on the sleeve roller 9, and the flange 10 is provided with a sliding sleeve 25 that is slidably matched with the sleeve roller 9. A spring pin 11 is installed in the vertical direction of the sliding sleeve 25, and the inner end of the spring pin 11 passes through the sliding sleeve 25; the spring pin 11 is a prior art, and its specific The structure will not be elaborated any more. Once the outer end of the spring pin 11 is touched, an extrusion effect will be generated, causing the inner end of the spring pin 11 to be pressed on the sleeve roller 9. At this time, the flange 10 is equivalent to being connected to the sleeve roller 9 through the spring pin 11. When the sleeve roller 9 rotates, it will rotate with the flange 10, that is, when the flange 10 rotates at this time, it will rotate with the sleeve roller 9, and the sleeve roller 9 will rotate with the first precision detection roller 8. When the touch factor of the outer end of the spring pin 11 disappears, the inner end of the spring pin 11 will be ejected outward and separated from the sleeve roller 9. At this time, the flange 10 is only sleeved on the sleeve roller 9, and the sleeve roller 9 does not rotate with the flange 10 when it rotates at this time, that is, when the flange 10 rotates at this time, it does not rotate with the sleeve roller 9.

[0034] In continuation of the above, the precision self-testing mechanism 5 also includes a second precision detection roller 12 sleeved on the sleeve roller 9, the second precision detection roller 12 is located on the front side of the flange 10 and the front side of the top cover 2, and a plug rod 13 extending horizontally backward is fixed to the rear end of the second precision detection roller 12, and a first insertion hole 14 which is in the same straight line with the plug rod 13 and the spring pin 11 is opened on the flange 10; the second precision detection roller 12 is pushed backward, and the plug rod 13 is passed through the first insertion hole 14 and pushed onto the spring pin 11. At this time, under the connection of the plug rod 13, the second precision detection roller 12 is connected to the flange 10, and at the same time, the rear end of the plug rod 13 is pressed onto the spring pin 11, so that the inner end of the spring pin 11 is pushed onto the sleeve roller 9, so as to lock the flange 10 on the sleeve roller 9, and at the same time, the second precision detection roller 12 is connected to the flange 10 through the plug rod 13. At this time, the second precision detection roller 12 is rotated, and the second precision detection roller 12 drives the flange 10 to rotate through the insertion rod 13, and the flange 10 drives the sleeve roller 9 to rotate, and the sleeve roller 9 drives the first precision detection roller 8 to rotate; the role of the second precision detection roller 12 at this time is: first, it pushes the insertion rod 13 to trigger the spring pin 11 to fix the flange 10 on the sleeve roller 9; second, when it rotates with the insertion rod 13, the insertion rod 13 drives the flange 10, and the flange 10 drives the sleeve roller 9 to rotate, and then the sleeve roller 9 drives the first precision detection roller 8 to rotate, and the rolling surface of the first precision detection roller 8 when rotating can drive the bearing to rotate, so as to detect whether the axis of the bearing is in the same straight line with the axis of the assembly hole 27 when it is installed in the assembly hole 27. This detection function is used to improve the accuracy of the bearing after being installed in the assembly hole 27.

[0035] The precision self-testing mechanism 5 also includes an oil bag 7 sleeved on the sleeve roller 9, one end of the oil bag 7 is connected to the flange 10, and the other end is connected to the second precision detection roller 12. A drip hole 6 is opened on the top cover 2, and an oil pipe 24 is connected between the drip hole 6 and the oil bag 7. The oil bag 7 is filled with colored oil. The inner end of the drip hole 6 passes through the inner wall of the top cover 2. When the second precision detection roller 12 moves backward, it squeezes the oil bag 7, so that the colored oil in the oil bag 7 enters the drip hole 6 through the oil pipe 24 and drips onto the bearing from the inner end of the drip hole 6.

[0036] Specific working principle: the operator loosens the bolts on the left and right connecting seats 3, separates the top cover 2 upward from the base 1, enlarges the size of the assembly hole 27 (the assembly hole 27 is an ellipse at this time), installs the bearing into the assembly hole 27 from the front or rear side of the bearing seat, and closes the top cover 2 to the base 1 again, then adjusts and locks the bolts on the left and right connecting seats 3 in turn, and each time the bolts are tightened, the second precision detection roller 12 is pushed backward once, and the second precision detection roller 12 pushes the plunger 13 backward once, and each time the plunger 13 enters the first insertion hole 14, the rear end of the plunger 13 squeezes the spring pin 11 once, and the spring pin 11 is squeezed and locks the flange 10 to the sleeve roller 9 once, and the second precision detection roller 12 also squeezes the oil bag 7 backward once, so that the oil bag 7 is compressed and the oil is discharged once, and the colored oil is injected into the drip hole 6 once through the oil pipe 24, and when the second precision detection roller 12 is pushed backward and rotated, the second The precision detection roller 12 drives the flange 10 to rotate, and the flange 10 drives the sleeve roller 9 to rotate, and the sleeve roller 9 drives the first precision detection roller 8 to rotate. If the first precision detection roller 8 can rub the outer ring of the bearing when it rotates, and the outer ring drives the entire bearing to rotate in the assembly hole 27, it proves that the outer cylindrical surface of the first precision detection roller 8 is completely in contact with the outer wall surface of the bearing when it rotates one circle, that is, the outer wall surface of the bearing (outer ring wall surface) has the opportunity to receive the rolling friction of the first precision detection roller 8, and the bearing does not deflect forward, backward, left or right in the assembly hole 27 at this time. Slowly tighten the four bolts on the left and right connecting seats 3, and at the same time turn the first precision detection roller 8 to rub the bearing and rotate until the four bolts are completely tightened, and the outer ring of the bearing is completely locked in the assembly hole 27. Because the outer ring of the bearing is completely fixed, the first precision detection roller 8 no longer rotates, which proves that the bearing is fixed in the bearing seat and the fixed bearing is not deflected.If the bearing cannot rotate synchronously with the first precision detection roller 8 for one circle, it proves that the bearing is skewed in the assembly hole 27 at this time, and its outer cylindrical surface is not fully contacted by the rotating first precision detection roller 8. It is necessary to adjust the tightness of the four bolts on the left and right connecting seats 3 in turn, adjust the angle of the bearing in the assembly hole 27, and rotate the second precision detection roller 12 again. The second precision detection roller 12 drives the flange 10 to rotate again, and the flange 10 drives the sleeve roller 9 to rotate again. The sleeve roller 9 drives the first precision detection roller 8 to rotate again to see whether the bearing is rubbed by the first precision detection roller 8 to complete a full rotation. In order to improve the discrimination effect, if the bearing can successfully complete a full rotation, the colored oil dripping on the bearing will leave a full circle track on the outer wall of the bearing. On the contrary, if the bearing fails to complete a full rotation, the colored oil dripping on the bearing cannot leave a full circle track. Through these two intuitive detection methods, it is possible to correct whether the bearing is skewed forward, backward, left or right in the assembly hole 27; if the bearing is in a reasonable position in the assembly hole 27 (that is, the bearing is in the assembly hole 27, the first precision detection roller 8 can rotate to rub the outer ring of the bearing and make the bearing rotate in the assembly hole 27 for a full circle, and the dripping colored oil will leave a circle track on the outer ring of the bearing. At the same time, the operator gradually locks and fixes the top cover 2 and the base 1 in a right way, and during this period, the first precision detection roller 8 is kept rubbing the outer ring of the bearing to make the bearing rotate in the assembly hole 27, and as the four bolts completely fasten the top cover 2 to the base 1, the outer ring of the bearing will The top cover 2 and the base 1 are completely fixed, that is, the bearing is completely fixed in the assembly hole 27. It can be seen that when the bearing is fixed in the assembly hole 27, its outer ring is rubbed and synchronously corrected by the first precision detection roller 8. Therefore, when the bearing is finally fixed in the assembly hole 27, it is ensured that the bearing will not be deflected. Finally, because the overlapping surfaces of the top cover 2 and the base 1 are completely overlapped and locked, the assembly hole 27 is completely turned into a circle, and the center of the inner ring of the bearing and the assembly hole 27 can also be ensured to be on the same axis, that is, the accuracy of the bearing after being fixed in the bearing seat is improved.

[0037] The installation accuracy is improved when the bearing is installed into the bearing seat. The bearing on the other side is assembled to the bearing seat on the other side in the same way (in the machinery industry, a bearing is set at each end of the same transmission shaft, and a bearing seat is installed on both bearings to fix the two bearings to the mechanism). Next, the transmission shaft is installed on the inner rings of the two bearings. Finally, the bolts on the left and right connecting seats 3 are tightened one by one in a diagonal locking manner, and the outer ring of the bearing no longer rotates. After completing the above-mentioned inspection, the second precision inspection roller 12 is pulled forward to disengage the insertion rod 13 from the flange 10, and at the same time, the insertion rod 13 is disengaged from the spring pin 11. At this time, the spring pin 11 no longer locks the flange 10 on the sleeve roller 9, and the second precision inspection roller 12 resets forward, and the oil bag 7 changes from compression to tension and becomes longer, and the oil nozzle 26 is used to replenish the colored oil into the oil bag 7. At the same time, because the spring pin 11 no longer locks the flange 10 on the sleeve roller 9, the second precision inspection roller 12 will be free on the sleeve roller 9, and the second precision inspection roller 12 can be completely rotated alone on the sleeve roller 9. At this time, the transmission shaft rotates alone for one circle to see whether its outer cylindrical surface can fully contact the outer cylindrical surface of the second precision inspection roller 12, and whether it can drive the second precision inspection roller 12 to rotate alone. If the second precision inspection roller 12 can rotate synchronously under the rotational friction of the transmission shaft at this time, it is corrected that the transmission shaft is installed between the two bearings without deflection.

[0038] In this embodiment, the second precision detection roller 12 is not only used to make the flange 10 drive the sleeve roller 9, and the sleeve roller 9 drives the first precision detection roller 8 to rotate, which is more labor-saving, but also can compress the oil bag 7 to provide color oil to the outer ring of the bearing when the second precision detection roller 12 moves forward, and when the first precision detection roller 8 rotates, it is used to detect whether the bearing can be driven by the first precision detection roller 8 to complete a full rotation, and complete the accuracy detection of the bearing after it is installed in the bearing seat. The color oil, rotation and accuracy detection are synchronized for easy operation.

[0039] The inner wall of the top cover 2 is arc-shaped, and an oil passage 15 is opened along the middle of the arc-shaped inner wall of the top cover 2. The inner end of the drip hole 6 passes through the oil passage 15, and the two ends of the oil passage 15 reach the two sides of the slot 4 along the arc-shaped inner wall of the top cover 2. The colored oil from the oil bag 7 falls into the oil passage 15 through the drip hole 6. After being restricted by the oil passage 15, it is ensured that a regular oil mark can be left when the outer ring of the bearing rotates. If the oil mark left on the outer ring of the bearing is regular and complete, it proves that the bearing is installed in the assembly hole 27 with qualified accuracy.

[0040] A deep groove 16 is provided along the circumferential surface of the first precision detection roller 8. The deep groove 16 is located on the oil outlet path of the oil channel 15, and the bottom of the deep groove 16 is higher than the oil channel 15. When the first precision detection roller 8 uses the rolling surface (outer cylindrical surface) to rub the outer ring of the bearing and rotates the entire bearing, it actually uses the areas on both sides of the deep groove 16 as effective rolling surfaces to rub the outer ring of the bearing and rotates the entire bearing. The colored oil track dripping onto the outer ring surface of the bearing can avoid the deep groove 16 part of the first precision detection roller 8, preventing the first precision detection roller 8 from smoothing the track or rubbing it clean, which affects the observation effect.

[0041] A buckle cover 17 is installed on the slot 4 . The buckle cover 17 is a transparent cover used to cover dust to prevent dust from passing through the slot 4 and entering the oil passage 15 . One end of the buckle cover 17 is hinged on one side of the slot 4 .

[0042] The front and rear ends of the slot 4 are each inlaid with a rotating sleeve 18 on the same straight line. The rear end of the first precision detection roller 8 is assembled on the rotating sleeve 18 on the rear side, and the front end of the first precision detection roller 8 passes through and is assembled on the rotating sleeve 18 on the front side. Rotating parts are formed at the front and rear ends of the first precision detection roller 8 to improve the rotation effect.

[0043] A plurality of weight-reducing holes 19 are formed on the second precision detection roller 12 .

[0044] In another embodiment, three parallel screws 21 are installed in a circular array on the front end surface of the flange 10 facing the second precision detection roller 12. The screws 21 are also parallel to the axis of the bearing seat. Three second insertion holes 22 are opened in a circular array on the second precision detection roller 12. The three screws 21 are respectively inserted into the three second insertion holes 22. A limit nut 23 is installed at the front end of each screw 21. The length of the insertion rod 13 is less than the length of the screw 21. The screw 21 is only provided with an external thread for installing the limit nut 23 at the front end, and the rear section of the screw 21 is an optical axis. The three screws 21 are inserted into the second precision detection roller 12 through the second insertion holes 22, so that the second precision detection roller 12 not only slides on the sleeve roller 9 in the middle position to form a positioning guide when sliding forward and backward, but also uses these three screws 21 as a positioning guide when sliding forward and backward, and also ensures that the second precision detection roller 12 is parallel to the front side of the bearing seat.

[0045] It should be further explained that the oil nozzle 26 also refers to an oil pot, the bottom of which is connected to the oil bladder 7 through a pipeline, and the pipeline is provided with a one-way valve. The oil bladder 7 will discharge oil once each time it is compressed, and the one-way valve will be opened once each time the oil bladder 7 is stretched and reset, and the oil nozzle 26 will replenish the oil to the oil bladder 7. The oil bladder 7 adopts a rubber bellows, and the steel wire filled inside can be understood as a spring distributed along the direction of the corrugation, which improves the strength of the oil bladder 7 and facilitates the rapid recovery and elongation of the oil bladder 7 when the second precision detection roller 12 resets forward.

[0046] It should be further explained that the top end of the spring pin 11 (the top end of the internal push rod) faces the inclined surface inclined in the direction of the insertion rod 13. When the insertion rod 13 hits the inclined surface, it pushes the push rod of the spring pin 11 onto the sleeve roller 9. Apart from this, no other structure of the spring pin 11 is modified, and the existing locking principle of the spring pin 11 is not affected.

[0047] The above orientation designations do not represent the specific orientations of the components in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme, and the orientations are described relatively with reference to the figures. In essence, the specific orientations of the components are described according to their actual installation and actual use as well as the customary orientations of technicians in this field. This is hereby explained.

[0048] The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision bearing seat, characterized in that: The base (1) comprises a top cover (2) which is detachably mounted on the top of the base (1); two groups of front and rear connection seats (3) are respectively arranged at the left and right ends of the base (1) and the top cover (2); a notch (4) is provided on the top cover (2); the inner end of the notch (4) is vertically connected to the inner wall of the top cover (2); The top cover (2) is provided with a precision self-testing mechanism (5), the precision self-testing mechanism (5) comprising a first precision testing roller (8) installed in the slot (4), the rolling surface of the first precision testing roller (8) coincident with the inner cavity surface of the top cover (2); The front end of the first precision detection roller (8) extends beyond the front side of the top cover (2), and a sleeve roller (9) is fixed to the front end of the first precision detection roller (8). The precision self-testing mechanism (5) further comprises a flange (10) sleeved on the sleeve roller (9), a sleeve (25) slidably fitted on the sleeve roller (9) is provided on the flange (10), a spring pin (11) is installed in the vertical direction of the sleeve (25), and the inner end of the spring pin (11) extends into the sleeve (25); The precision self-testing mechanism (5) further comprises a second precision testing roller (12) sleeved on the sleeve roller (9), the second precision testing roller (12) being located at the front side of the flange (10) and the front side of the top cover (2), a plug rod (13) extending horizontally backwards being fixed to the rear end of the second precision testing roller (12), and a first insertion hole (14) being formed on the flange (10) and being in the same straight line as the plug rod (13) and the spring pin (11); when the second precision testing roller (12) moves backwards, the plug rod (13) passes through the first insertion hole. The hole (14) is pressed against the spring pin (11), so that the pin rod of the spring pin (11) moves and presses against the sleeve roller (9), so as to lock the flange (10) on the sleeve roller (9), and at the same time, the second precision detection roller (12) is connected to the flange (10) through an insertion rod (13); when the second precision detection roller (12) rotates, the insertion rod (13) drives the flange (10) to rotate, the flange (10) drives the sleeve roller (9) to rotate, and the sleeve roller (9) drives the first precision detection roller (8) to rotate; The precision self-testing mechanism (5) further comprises an oil bag (7) sleeved on the sleeve roller (9), one end of the oil bag (7) being connected to the flange (10), and the other end being connected to the second precision detection roller (12), a drip hole (6) being provided on the top cover (2), an oil pipe (24) being connected between the drip hole (6) and the oil bag (7), the oil bag (7) being filled with colored oil, the inner end of the drip hole (6) penetrating the inner wall of the top cover (2), and the second precision detection roller (12) squeezing the oil bag (7) when moving backward, so that the colored oil in the oil bag (7) enters the drip hole (6) through the oil pipe (24), and drips onto the bearing from the inner end of the drip hole (6); The inner wall surface of the top cover (2) is arc-shaped, and an oil passage (15) is opened along the middle of the arc-shaped inner wall of the top cover (2). The inner end of the drip hole (6) passes through the oil passage (15), and the two ends of the oil passage (15) respectively reach the two sides of the slot (4) along the arc-shaped inner wall of the top cover (2); A deep groove (16) is provided along the circumferential surface of the first precision detection roller (8), the deep groove (16) being located on the oil outlet path of the oil channel (15), and the bottom of the deep groove (16) being higher than the oil channel (15).

2. A high-precision bearing seat according to claim 1, characterized in that: An oil nozzle (26) is installed at the top of the oil bag (7), and the oil bag (7) is filled with steel wire. An assembly hole (27) for assembling a bearing is formed between the base (1) and the top cover (2). The axis of the first precision detection roller (8) is parallel to the axis of the assembly hole (27). The bearing is installed in the assembly hole (27), and the transmission shaft is installed on the bearing. The diameter edge of the second precision detection roller (12) is close to the outer wall of the transmission shaft in the radial direction of the transmission shaft, and the diameter edge of the second precision detection roller (12) is rubber.

3. A high-precision bearing seat according to claim 1, characterized in that: A buckle cover (17) is installed on the notch (4), and the buckle cover (17) is a transparent cover.

4. A high-precision bearing seat according to claim 3, characterized in that: The rear side of the second precision detection roller (12) is parallel to the front side of the top cover (2).

5. A high-precision bearing seat according to claim 4, characterized in that: A rotating sleeve (18) is inlaid on the same straight line at each of the front and rear ends of the slot (4); the rear end of the first precision detection roller (8) is mounted on the rotating sleeve (18) at the rear side, and the front end of the first precision detection roller (8) passes through and is mounted on the rotating sleeve (18) at the front side.

6. A high-precision bearing seat according to claim 5, characterized in that: A plurality of weight-reducing holes (19) are provided on the second precision detection roller (12).

7. A high-precision bearing seat according to claim 6, characterized in that: Three mutually parallel screw rods (21) are installed in an annular array on the front end surface of the flange (10) facing the second precision detection roller (12). The screw rods (21) are also parallel to the axis of the bearing seat. Three second insertion holes (22) are opened in an annular array on the second precision detection roller (12). The three screw rods (21) are respectively inserted into the three second insertion holes (22). A limit nut (23) is installed at the front end of each screw rod (21); the length of the insertion rod (13) is less than the length of the screw rod (21). The screw rod (21) is only provided with an external thread for installing the limit nut (23) at the front end, and the rear section of the screw rod (21) is an optical axis.

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