High-speed oil cooling rotary table bearing

Abstract

The utility model provides a high-speed oil cooling rotary table bearing which comprises a bearing body base, a mounting hole is formed in the outer ring of the bottom of the bearing body base, an end cover connecting hole is formed in the top end of the bearing body base, a roller raceway groove is formed in the middle of an inner hole of the bearing body base, and an end face roller raceway is arranged on the bottom end face of the inner hole of the bearing body base. A retainer is arranged on the inner bottom end surface of the bearing body base; a temperature measuring head mounting hole is formed in the bearing body base, and a framework oil seal for sealing lubricating oil is arranged at the bottom of the bearing body base. According to the utility model, heat in the rotary table bearing can be directly and quickly taken away to quickly cool the rotary table bearing, so that the high-load requirement of the rotary table bearing is met.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of turntable bearings, in particular to a high-speed oil-cooled turntable bearing. Background Art

[0002] At higher rotational speeds, the turntable bearing is often designed as a rolling bearing, wherein different designs can be used in a manner coordinated with the bearing load.

[0003] Most of the traditional turntable bearings have an external lubrication system with fan cooling or air conditioning cooling. In this way, it is difficult to directly remove the heat inside the turntable bearing, and thus it is difficult to meet the needs of turntable bearings operating under high load. Utility Model Content

[0004] The utility model mainly provides a high-speed oil-cooled turntable bearing to solve the technical problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A high-speed oil-cooled turntable bearing comprises a bearing body base, wherein the bottom outer ring of the bearing body base is provided with a mounting hole, the top end is provided with an end cover connection hole, the middle of the inner hole of the bearing body base is provided with a roller raceway groove, the bottom end face of the inner hole of the bearing body base is provided with an end face roller raceway, and a retainer is placed in the inner bottom end face of the bearing body base; a temperature measuring head mounting hole is provided inside the bearing body base, and a skeleton oil seal for sealing lubricating oil is provided at the bottom of the bearing body base;

[0007] The bottom of the bearing body base is provided with a lubricating oil return hole, a docking hole and an oil outlet hole on the skeleton oil seal sealing surface, and the top surface of the bearing body base is provided with an O-ring sealing groove;

[0008] The inner bottom end surface of the bearing body base is provided with a retaining frame filled with rollers, and a bearing spindle body. The bearing spindle body is provided with a plurality of coolant injection holes and threaded hole docking holes. The threaded hole docking holes are connected to the roller support flange surface of the bearing spindle body. The threaded hole docking holes (14) are connected to the roller support flange surface through a coolant inlet channel 11.

[0009] Furthermore, a threaded hole is provided in the inner hole of the bearing body base to connect with the input oil pipe, and the input oil pipe is connected with the rotary joint so that the oil pipe will not rotate around when the axis rotates.

[0010] Furthermore, the bottom surface of the axial flange of the bearing shaft body is used to receive the load-bearing surface of the retaining frame, and the upper end surface of the axial flange of the bearing shaft body is sleeved with the bearing shaft cooling compound ring. The bearing shaft cooling compound ring and the receiving flange are combined into a sealed cavity that can reflux high-pressure liquid, so that the constant temperature refrigerant input from the axial pipeline can take away the heat generated by the bearing movement, thereby achieving an internal circulation result.

[0011] Furthermore, the inner diameter surface of the bearing shaft cooling composite ring and the threaded surface of the shaft flange are both provided with O-ring sealing grooves, and bolts are passed from the bearing shaft cooling composite ring to the shaft flange surface for threading to form an axial roller support surface.

[0012] Furthermore, the end surface and the bottom surface of the bearing spindle body are provided with a plurality of threaded holes.

[0013] Furthermore, the first retaining frame retaining ring and the first retaining frame ring are connected by bolts.

[0014] Furthermore, the end surface and the bottom surface of the bearing spindle body are provided with O-ring grooves.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model can directly and quickly take away the heat inside the turntable bearing to quickly cool the turntable bearing, thereby meeting the high load requirements of the turntable bearing. Specifically, the coolant passes through the coolant inlet flow channel opened on the inner ring and enters the annular groove between the shaft body raceway support ring and the shaft body raceway composite ring. The annular groove is separated by a plug, so that the coolant enters the annular groove through the coolant inlet flow channel and flows along the retaining frame, and then enters the coolant outlet flow channel at the other end of the plug and flows out, thereby cooling the retaining frame as a whole.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 The utility model is a cross-sectional view Figure 1 ;

[0020] Figure 3 The utility model is a cross-sectional view Figure 2 ;

[0021] Figure 4 This is a structural diagram of the shaft body raceway support ring of the utility model;

[0022] Figure 5 This is a structural diagram of the cage of the utility model;

[0023] Figure 6 It is an exploded view of the utility model.

[0024] In the figure: 1. bearing spindle body; 11. coolant inlet channel; 12. cavity; 13. coolant outlet channel; 14. plug; 15. coolant injection hole; 16. temperature measuring head mounting hole; 17. threaded hole docking hole; 2. bearing body base; 21. bearing shell cover; 22. lubricating oil return hole; 23. oil outlet hole; 24. skeleton oil seal; 3. cage; 31. first cage retaining ring; 32. first cage ring; 33. second cage retaining ring; 34. roller hole; 35. roller; 36. second cage ring; 4. bearing spindle cooling composite ring; 5. spindle body raceway composite ring. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] For examples, please refer to the attached Figure 1-6A high-speed oil-cooled turntable bearing, comprising a bearing spindle body 1, a bearing body base 2 and a retainer 3, the retainer 3 rolling on the bearing spindle body 1 and the bearing body base 2, two retainers 3 are provided, a bearing spindle cooling composite ring 4 and an axis body raceway composite ring 5 sequentially arranged from top to bottom are slidably connected between the two retainers 3, the axis body raceway composite ring 5 and the bearing spindle body 1 are integrally formed; a coolant inlet channel 11 is provided on the shell of the bearing spindle body 1, the coolant inlet channel 11 is connected to a cavity 12 arranged between the bearing spindle cooling composite ring 4 and the axis body raceway composite ring 5, the liquid outlet end of the cavity 12 is connected to a coolant outlet channel 13, and the coolant outlet channel 13 is arranged on the bearing spindle body 1;

[0029] It should be noted that, in this embodiment, the coolant inlet channel 11 is provided with two inlet holes, one of which is on the surface of the bearing shaft body 1 of the bearing shaft body, and the other is on the bottom surface of the bearing shaft body 1. In this way, one oil inlet hole can be blocked according to assembly requirements to meet different assembly requirements.

[0030] For details, please refer to the attached Figure 2 and 3 The bearing body base 2 includes a bearing housing cover 21 connected to the upper surface of the ring body by bolts, and a lubricating oil return hole 22 is provided on the shell of the bearing housing cover 21, and the lubricating oil return hole 22 is connected to an oil outlet hole 23, and the oil outlet hole 23 is provided on the shell of the bearing body base 2;

[0031] It should be noted that, in this embodiment, the oil inlet of the lubricating oil return hole 22 is arranged on the side of the bearing housing cover 21, and the lubricating oil enters the lubricating oil return hole 22 from the oil inlet on the side of the bearing housing cover 21, and is transported through the lubricating oil return hole 22 to flow between the bearing housing cover 21 and the retainer 3 at the top, thereby lubricating the retainer 3 at the top;

[0032] During the process of lubricating the retainer 3 at the top, the lubricating oil flows along the retainer 3 to the space between the bearing shaft cooling compound ring 4 and the bearing body base 2, and between the shaft body raceway compound ring 5 and the bearing body base 2. Since the gap between the retainer 3 at the bottom and the bearing body base 2 communicates with the space, the retainer 3 is lubricated by the lubricating oil.

[0033] After lubricating the bottom retainer 3, the lubricating oil is discharged through the oil outlet hole 23. The oil outlet hole 23 is provided with two oil outlets. When in use, one of them is blocked according to the assembly requirements to meet different assembly requirements.

[0034] For details, please refer to the attached Figure 2 and 4The cavity 12 of the bearing shaft cooling composite ring 4 and the shaft body raceway composite ring 5 is provided with a plug 14, and the plug 14 is arranged between the coolant inlet flow channel 11 and the coolant outlet flow channel 13;

[0035] A skeleton oil seal 24 is connected between the top end of the bearing spindle body 1 and the top end of the bearing body base 2, and a skeleton oil seal 24 is connected between the bottom end of the bearing spindle body 1 and the bottom end of the bearing body base 2;

[0036] It should be noted that, in this embodiment, the cavity 12 is separated by the plug 14, so that after the coolant enters the cavity 12 from the coolant inlet channel 11, it flows along the retainer 3 and then enters the coolant outlet channel 13 at the other end of the plug 14, thereby cooling the retainer 3 as a whole;

[0037] Furthermore, the skeleton oil seal 24 provides sealing for the bearing spindle body 1 and the bearing body base 2 .

[0038] For details, please refer to the attached Figure 4 and 6 The retainer 3 includes a first retainer retainer ring 31, a first retainer ring 32, a second retainer retainer ring 33 and a second retainer ring 36, which are arranged between the bearing spindle body 1 and the bearing body base 2. The first retainer retainer ring 31, the first retainer ring 32, the second retainer retainer ring 33 and the second retainer ring 36 are connected in sequence from the outside to the inside;

[0039] The first retainer ring 31 and the first retainer ring 32 are connected by bolts;

[0040] It should be noted that, in this embodiment, a new retainer ring and retainer ring are added inside the second retainer ring 36 located on the inner side to meet the size of the bearing;

[0041] Furthermore, since the first retaining ring 31 is connected to the first retaining ring 32 by bolts, and the sliding roller 35 is placed in the roller hole 34 obtained by milling the hole on the side of the retaining ring, the retaining ring 3 can ensure that the sliding roller 35 is fixed in the roller hole 34 during installation and disassembly, and the sliding roller 35 will not fall and disperse through the blocking of the roller hole 34.

[0042] For details, please refer to the attached Figure 4 and 6 The first retainer ring 32 and the second retainer ring 36 are provided with a plurality of roller holes 34 on the side of the ring body, and the sliding rollers 35 are inserted into the roller holes 34;

[0043] It should be noted that, in this embodiment, the included angle between the axis of the sliding roller 35 and the center of the circle of the retaining frame 3 is set to be unequal, so that when the sliding roller 35 rotates with the bearing, the landing point of the sliding roller 35 is different random landing point, which improves the seismic resistance and stability;

[0044] The roller hole 34 wraps the sliding roller 35 so that a certain amount of lubricating oil can be stored between the roller hole 34 and the sliding roller 35 to provide lubrication for the sliding roller 35 at any time, thereby increasing the service life of the sliding roller 35 and the bearing.

[0045] The specific operation mode of the utility model is as follows:

[0046] When using a high-speed oil-cooled turntable bearing, the coolant passes through the coolant inlet channel 11 opened on the bearing shaft body 1, enters the cavity 12 between the bearing shaft cooling composite ring 4 and the shaft body raceway composite ring 5, and is separated by the plug 14. The coolant enters the cavity 12 through the coolant inlet channel 11, flows along the retaining frame 3, and then enters the coolant outlet channel 13 at the other end of the plug 14 to flow out, thereby cooling the retaining frame 3 as a whole.

[0047] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A high-speed oil-cooled turntable bearing, comprising a bearing body base (2), characterized in that: The outer ring at the bottom of the bearing body base (2) is provided with a mounting hole (26), the top end is provided with an end cover connection hole (27), the middle of the inner hole of the bearing body base (2) is provided with a roller raceway groove (28), the bottom end face of the inner hole of the bearing body base (2) is provided with an end face roller raceway (29), and the inner bottom end face of the bearing body base (2) is placed in a retaining frame (3); the interior of the bearing body base (2) is provided with a temperature measuring head mounting hole (16), and the bottom of the bearing body base (2) is provided with a skeleton oil seal (24) for sealing lubricating oil; The bottom of the bearing body base (2) is provided with a lubricating oil return hole (22), a docking hole and an oil outlet hole (23) on the sealing surface of the skeleton oil seal (24), and the top surface of the bearing body base (2) is provided with an O-ring sealing groove; The inner bottom end surface of the bearing body base (2) is provided with a retaining frame (3) filled with rollers (35), and a bearing spindle body (1). The bearing spindle body (1) is provided with a plurality of coolant injection holes (15) and threaded hole docking holes (14). The threaded hole docking holes (14) are connected to the roller support flange surface of the bearing spindle body (1).

2. A high-speed oil-cooled turntable bearing according to claim 1, characterized in that: A threaded hole is provided in the inner hole of the bearing body base (2) and is connected to the input oil pipe.

3. A high-speed oil-cooled turntable bearing according to claim 1, characterized in that: The bottom surface of the axial flange of the bearing shaft body (1) is used to receive the force-bearing surface of the retaining frame (3); the upper end surface of the axial flange of the bearing shaft body (1) is sleeved with a bearing shaft cooling composite ring (4); the bearing shaft cooling composite ring (4) and the receiving flange are combined to form a sealed cavity (12) capable of reflowing high-pressure liquid.

4. A high-speed oil-cooled turntable bearing according to claim 1, characterized in that: The inner diameter surface of the bearing spindle cooling composite ring (4) and the spindle flange threaded surface are both provided with O-shaped sealing grooves, and bolts are passed from the bearing spindle cooling composite ring (4) to the spindle flange surface for threaded engagement to form an axial roller support surface.

5. The high-speed oil-cooled turntable bearing according to claim 1, characterized in that: The end surface and bottom surface of the bearing spindle body (1) are provided with a plurality of threaded holes.

6. A high-speed oil-cooled turntable bearing according to claim 1, characterized in that: The end surface and the bottom surface of the bearing spindle body (1) are both provided with O-type sealing ring grooves.

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