Environment-friendly bearing for electric spindle

Abstract

The utility model relates to bearing technical field, concretely is a kind of electric spindle environmental protection bearing, including bearing assembly, oil injection subassembly is installed on bearing assembly;The bearing assembly includes the shaft sleeve installed in the outside of axle core, the built-in main ring cover and built-in secondary ring cover are installed in the outside of shaft sleeve, first ring pad is movably installed in the outside of built-in main ring cover and second ring pad is movably installed in the outside of built-in secondary ring cover.By one end of bearing assembly installation oil injection subassembly, and oil pipe is penetrated to the outside of electric spindle, before the operation of axle core, utilize oil pipe and transfer lubricating oil to the inside of oil storage cavity, with the internal temperature rise of electric spindle, and heat energy radiates to plug pad, plug pad will compress oil storage cavity, and then will extrude lubricating oil from cylindrical hole, and extruded lubricating oil will be effectively coated to ball, and ball inner oil can be effectively extruded, to effectively improve the service life of the bearing, and provide stability protection to the rotation of axle core.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to an environmentally friendly bearing for electric spindles. Background Technology

[0002] Electric spindle bearings are mainly used to support high-speed rotating spindles, bear loads, and ensure the machining accuracy of the spindles.

[0003] Currently, the bearing needs to be fixed to the outside of the spindle first, and lubricating oil needs to be applied to the bearing balls. Then, the bearing coated with lubricating oil is installed in the inner cavity of the electric spindle. However, this type of bearing with rated lubricating oil still has certain drawbacks during actual use. As the bearing balls rotate continuously and under high pressure against the inner wall of the electric spindle, the rated lubricating oil will cause the balls to wear more severely, which may cause the spindle to shake in the inner cavity of the electric spindle in severe cases.

[0004] In view of this, an environmentally friendly bearing for electric spindles was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] An environmentally friendly bearing for an electric spindle includes a bearing assembly and an oil injection assembly mounted on the bearing assembly. The bearing assembly includes a bushing mounted outside the spindle core, an inner main ring sleeve and an inner secondary ring sleeve mounted outside the bushing sleeve, a third ring washer movably mounted outside the inner main ring sleeve, and a fourth ring washer movably mounted outside the inner secondary ring sleeve. An oil drain groove is formed between the inner secondary ring sleeve and the bushing sleeve. The oil injection assembly includes an oil reservoir movably mounted outside the bushing sleeve, an oil reservoir cavity is formed inside the oil reservoir cavity, a plug is movably mounted inside the oil reservoir cavity, and the oil reservoir is inserted into the wall of a pipe with multiple uniformly distributed cylindrical holes and an oil delivery pipe fixedly mounted outside the oil reservoir. The oil delivery pipe is adapted to extend to the outside of the electric spindle.

[0008] In a preferred embodiment, the present invention can be further configured such that the bearing assembly further includes an external main ring sleeve movably mounted outside the third ring pad and an external secondary ring sleeve movably mounted outside the fourth ring pad;

[0009] The outer main ring and the inner main ring have the same width in their cross sections;

[0010] The outer and inner sub-rings have the same cross-sectional width.

[0011] In a preferred embodiment, the present invention can be further configured such that the bearing assembly further includes a first ring washer fixedly installed at one end of the bushing and a second ring washer fixedly installed at the other end of the bushing.

[0012] The first ring gasket is installed between the inner main ring sleeve and the outer main ring sleeve;

[0013] The second ring gasket is installed between the inner secondary ring sleeve and the outer secondary ring sleeve.

[0014] In a preferred embodiment, the present invention can be further configured such that: both the third ring pad and the fourth ring pad have through holes inside, and a guide rod and a ball bearing installed outside the guide rod are installed in the through holes.

[0015] In a preferred embodiment, the present invention can be further configured such that: both the inner and outer sides of the plug are provided with annular grooves, and a built-in sealing strip is installed in the annular groove on the inner side of the plug, while an external sealing strip is installed in the annular groove on the outer side of the plug.

[0016] In a preferred embodiment, the present invention can be further configured such that: the oil reservoir has a fan-shaped slot at the end away from the bushing, and the fan-shaped slot is connected to the inner cavity of the electric spindle.

[0017] In a preferred embodiment, the present invention can be further configured such that: the end of the bushing away from the external main ring sleeve is adapted to penetrate into the interior of the oil reservoir, and the outer wall of the oil reservoir is attached to the inner wall of the electric spindle.

[0018] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0019] 1. This utility model installs an oil injection component at one end of the bearing assembly and extends the oil supply pipe to the outside of the electric spindle. Before the spindle rotates, the oil supply pipe transfers lubricating oil to the inside of the oil storage chamber. As the inside of the electric spindle heats up and the heat energy radiates to the plug, the plug will compress the oil storage chamber, thereby squeezing the lubricating oil out of the cylindrical hole. The squeezed-out lubricating oil will effectively coat the balls, and the excess oil inside the balls will be effectively squeezed out, thereby effectively improving the service life of the bearing and providing stable protection for the rotation of the spindle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram illustrating the use of this utility model;

[0021] Figure 2 This is an exploded view of the bearing assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the liquid injection assembly of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This utility model Figure 2 A partial diagram of the explosion;

[0025] Figure 6 This utility model Figure 5 Enlarged diagram of point B in the middle.

[0026] Figure label:

[0027] 100. Bearing assembly; 110. Bushing; 1101. First ring washer; 1102. Second ring washer; 1103. Oil drain groove; 120. Internal main ring washer; 130. Internal secondary ring washer; 140. External main ring washer; 150. External secondary ring washer; 160. Third ring washer; 170. Fourth ring washer; 180. Ball bearing; 1801. Guide rod;

[0028] 200. Oil injection assembly; 210. Oil reservoir; 2101. Fan-shaped groove; 2102. Oil reservoir cavity; 2103. Cylindrical hole; 2104. Oil delivery pipe; 220. Gasket; 230. Internal sealing strip; 240. External sealing strip. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0030] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0031] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an environmentally friendly electric spindle bearing. Example

[0032] Combination Figures 1 to 6 As shown, the present invention provides an environmentally friendly electric spindle bearing, including a bearing assembly 100 and an oil injection assembly 200 mounted on the bearing assembly 100. The oil injection assembly 200 is used to freely inject oil into the bearing assembly 100.

[0033] The bearing assembly 100 includes a bushing 110 mounted outside the shaft core, an inner main ring sleeve 120 and an inner secondary ring sleeve 130 mounted outside the bushing 110, a third ring washer 160 movably mounted outside the inner main ring sleeve 120, and a fourth ring washer 170 movably mounted outside the inner secondary ring sleeve 130.

[0034] An oil drain groove 1103 is provided between the built-in secondary ring sleeve 130 and the bushing 110. A first ring pad 1101 is fixedly installed at one end of the bushing 110, a second ring pad 1102 is fixedly installed at the other end of the bushing 110, an external main ring sleeve 140 is movably installed outside the third ring pad 160, and an external secondary ring sleeve 150 is movably installed outside the fourth ring pad 170. The third ring pad 160 and the fourth ring pad 170 are both provided with through holes, and a guide rod 1801 and a ball bearing 180 installed outside the guide rod 1801 are installed in the through holes.

[0035] The first ring gasket 1101 is installed between the inner main ring sleeve 120 and the outer main ring sleeve 140;

[0036] The second ring gasket 1102 is installed between the inner secondary ring sleeve 130 and the outer secondary ring sleeve 150;

[0037] The outer main ring sleeve 140 and the inner main ring sleeve 120 have the same width in their cross sections;

[0038] The outer secondary ring 150 and the inner secondary ring 130 have the same width in their cross sections;

[0039] The oil filling assembly 200 includes an oil reservoir 210 movably installed outside the bushing 110, an oil reservoir 2102 is provided inside the oil reservoir 210, a plug 220 is movably installed inside the oil reservoir 2102, and the oil reservoir 210 is inserted into the pipe wall inside the oil drain 1103 with a plurality of evenly distributed cylindrical holes 2103 and an oil delivery pipe 2104 fixedly installed outside the oil reservoir 210.

[0040] The oil supply pipe 2104 is adapted to extend through to the outside of the electric spindle.

[0041] Multiple guide rods 1801, evenly distributed in a circle, are fixedly installed inside the third ring pad 160 and the fourth ring pad 170. As the spindle rotates, the multiple evenly distributed balls 180 will effectively assist the rotation along the inner wall of the electric spindle, thereby replenishing the lubricating oil. After the waste oil is eliminated, the new lubricating oil can cool the balls 180 and improve the service life of the balls 180.

[0042] Conversely, when the spindle stops operating and the bearing assembly 100 needs maintenance, the electric spindle is inverted until the oil injection assembly 200 is directly below the bearing assembly 100, and the impurities between the multiple balls 180 are sucked out by repeatedly injecting and extracting lubricating oil into the bearing assembly 100. Example

[0043] Combination Figures 3 to 6As shown, based on Embodiment 1, the inner and outer sides of the plug 220 are provided with annular grooves, and an internal sealing strip 230 is installed in the annular groove on the inner side of the plug 220, while an external sealing strip 240 is installed in the annular groove on the outer side of the plug 220.

[0044] The oil reservoir 210 has a fan-shaped slot 2101 at the end away from the bushing 110, and the fan-shaped slot 2101 is connected to the inner cavity of the electric spindle.

[0045] The end of the bushing 110 away from the external main ring 140 is adapted to penetrate into the interior of the oil reservoir 210, and the outer wall of the oil reservoir 210 is attached to the inner wall of the electric spindle.

[0046] As the spindle core continues to rotate within the electric spindle cavity, the temperature inside the electric spindle cavity rises. The high temperature radiation from the electric spindle cavity radiates onto the plug 220, causing the plug 220, the built-in sealing strip 230, and the external sealing strip 240 to slide along the inside of the oil reservoir 2102. The lubricating oil filled in the oil reservoir 2102 is then effectively squeezed out. As the lubricating oil is squeezed out and flows into the gap of the ball 180 along the oil drain groove 1103, the waste oil initially filled in the gap of the ball 180 is discharged.

[0047] The working principle and usage process of this utility model are as follows: The bearing assembly 100 is installed in the cavity reserved in the electric spindle in advance, and then the spindle core is inserted into the inside of the bushing 110 until the bushing 110 is fixed with the electric spindle core, while the evenly distributed multiple balls 180 are adapted to bear pressure on the inner wall of the electric spindle.

[0048] Next, the oil supply pipe 2104 is passed through to the outside of the electric spindle. Before the electric spindle runs, the lubricating oil is transported to the inside of the oil reservoir 2102 through the oil supply pipe 2104 until the lubricating oil completely fills the inner cavity of the oil reservoir 2102. When the lubricating oil is injected, under the pressure, the lubricating oil inside the oil reservoir 2102 will enter the oil drain groove 1103 through the cylindrical hole 2103. Finally, the lubricating oil will flow from the oil drain groove 1103 into the gap between the ball 180 and the bushing 110.

[0049] As the spindle rotates, multiple balls 180 rotate along the inner wall of the electric spindle, and lubricating oil is coated on the inner wall of the electric spindle during the rotation of the balls 180, thereby reducing the frictional resistance between the balls 180 and the inner wall of the electric spindle.

[0050] As the spindle continues to rotate and causes the inner cavity of the electric spindle to heat up, the pressure on the gasket 220 affected by the heat will compress the space of the oil reservoir 2102. Finally, the lubricating oil inside the oil reservoir 2102 can be effectively squeezed out from the cylindrical hole 2103, and the squeezed-out lubricating oil can squeeze out the waste oil at the contact part between the ball 180 and the electric spindle.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An environmentally friendly bearing for an electric spindle, comprising a bearing assembly (100), characterized in that, It also includes an oiling assembly (200) mounted on the bearing assembly (100); The bearing assembly (100) includes a bushing (110) mounted outside the shaft core, an inner main ring sleeve (120) and an inner secondary ring sleeve (130) mounted outside the bushing (110), a third ring washer (160) movably mounted outside the inner main ring sleeve (120), and a fourth ring washer (170) movably mounted outside the inner secondary ring sleeve (130). An oil drain groove (1103) is provided between the built-in secondary ring sleeve (130) and the bushing (110). The oil injection assembly (200) includes an oil reservoir (210) movably installed outside the bushing (110), an oil reservoir (2102) is provided inside the oil reservoir (2102), a plug (220) is movably installed inside the oil reservoir (2102), and the oil reservoir (210) is inserted into the pipe wall inside the oil drain groove (1103) with a plurality of uniformly distributed cylindrical holes (2103) and an oil delivery pipe (2104) fixedly installed outside the oil reservoir (210). The oil supply pipe (2104) is adapted to extend to the outside of the electric spindle.

2. The environmentally friendly bearing for electric spindles according to claim 1, characterized in that, The bearing assembly (100) further includes an external main ring sleeve (140) movably mounted outside the third ring pad (160) and an external secondary ring sleeve (150) movably mounted outside the fourth ring pad (170). The outer main ring sleeve (140) and the inner main ring sleeve (120) have the same width in their cross sections; The width of the cross-section of the external sub-ring (150) and the internal sub-ring (130) is the same.

3. The environmentally friendly bearing for electric spindles according to claim 1, characterized in that, The bearing assembly (100) further includes a first ring washer (1101) fixedly installed at one end of the bushing (110) and a second ring washer (1102) fixedly installed at the other end of the bushing (110). The first ring gasket (1101) is installed between the inner main ring sleeve (120) and the outer main ring sleeve (140); The second ring gasket (1102) is installed between the built-in sub-ring sleeve (130) and the external sub-ring sleeve (150).

4. The environmentally friendly bearing for electric spindles according to claim 1, characterized in that, Both the third ring pad (160) and the fourth ring pad (170) have through holes inside, and a guide rod (1801) and a ball bearing (180) installed on the outside of the guide rod (1801) are installed in the through holes.

5. The environmentally friendly bearing for an electric spindle according to claim 1, characterized in that, The inner and outer sides of the plug (220) are provided with annular grooves, and an internal sealing strip (230) is installed in the annular groove on the inner side of the plug (220), while an external sealing strip (240) is installed in the annular groove on the outer side of the plug (220).

6. The environmentally friendly bearing for electric spindles according to claim 1, characterized in that, The oil reservoir (210) has a fan-shaped slot (2101) at one end away from the bushing (110), and the fan-shaped slot (2101) is connected to the inner cavity of the electric spindle.

7. The environmentally friendly bearing for electric spindles according to claim 1, characterized in that, The end of the bushing (110) away from the external main ring (140) is adapted to penetrate into the interior of the oil reservoir (210), and the outer wall of the oil reservoir (210) is attached to the inner wall of the electric spindle.

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