A split spindle box

Abstract

The present invention relates to a split spindle box, comprising a spindle box, the spindle box comprising an upper box body and a lower box body, the upper box body being detachably mounted on the top of the lower box body, the rear end of the spindle box being provided with a rear input shaft hole, a first rotating shaft being rotatably mounted at the rear input shaft hole, the front end of the spindle box being provided with a front mounting shaft hole, a second rotating shaft being rotatably mounted at the front mounting shaft hole and being transmission-connected with the first rotating shaft, and a lubrication circulation system being arranged in the spindle box. The split spindle box effectively reduces the loss of lubricating oil and saves costs.

Description

Technical Field

[0001] The invention specifically relates to a split type spindle box. Background Art

[0002] The spindle box is an important part of the machine tool. It is used to arrange the working spindle of the machine tool and its transmission parts and corresponding additional mechanisms. The spindle box adopts multi-stage gear transmission. Through a certain transmission system, the motion is finally transmitted to the spindle through the transmission gears and transmission shafts at various positions in the spindle box, so that the spindle obtains the specified speed and direction. In order to ensure the normal operation of the lathe and reduce the wear of parts, the bearings, gears, etc. in the spindle box must be well lubricated. However, the existing spindle easily throws the added lubricating oil onto the side wall of the spindle box, causing excessive loss of lubricating oil and requiring frequent addition of lubricating oil. Summary of the invention

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a split spindle box.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a split spindle box, including a spindle box, the spindle box includes an upper box body and a lower box body, the upper box body is detachably installed on the top of the lower box body, the rear end of the spindle box is provided with a rear input shaft hole, a first rotating shaft is rotatably installed at the rear input shaft hole, the front end of the spindle box is provided with a front mounting shaft hole, a second rotating shaft transmission-connected to the first rotating shaft is rotatably installed at the front mounting shaft hole, and a lubrication circulation system is arranged in the spindle box.

[0005] Preferably, the lubrication circulation system includes two lubrication oil circuits, which are symmetrically arranged on both sides of the rear input shaft hole, a lubrication platform is symmetrically arranged on the two inner side walls at the rear end of the spindle box, a lubrication oil groove is formed between the lubrication platform and the spindle box, the two lubrication oil circuits are respectively connected to the rear input shaft hole, the lubrication oil circuit and the lubrication oil groove on the same side are connected, a heat sink is arranged on the second rotating shaft, and first oil filling holes are symmetrically opened on both sides of the front mounting shaft hole of the spindle box, and the two ends of the first oil filling hole are respectively connected to the inside and outside of the spindle box.

[0006] Preferably, the lubricating oil circuit is arranged in a cross shape, and the lubricating oil circuit has two second oiling holes connected to the outside of the spindle box.

[0007] Preferably, a first oil through hole is provided between the lubricating oil circuit and the lubricating oil groove, and a second oil through hole is provided between the lubricating oil circuit and the rear input shaft hole.

[0008] Preferably, the first oil hole is higher than the second oil hole.

[0009] Preferably, the outer hole diameter of the lubricating oil passage close to the outside of the spindle box is larger than the inner hole diameter.

[0010] Preferably, the lubricating oil groove is a smooth inclined surface, and the first oil hole is located at the low point of the lubricating oil groove.

[0011] Preferably, the first oil filling hole is provided on the upper casing, and the lubricating oil circuit is provided on the lower casing.

[0012] Preferably, the heat sink includes an annular mounting plate, which is mounted on the second rotating shaft. The outer end surface of the annular mounting plate is annularly distributed with a plurality of adjacent guide vanes staggered end to end, with a gap between two adjacent guide vanes, and the guide vanes are obliquely mounted on the annular mounting plate.

[0013] Preferably, a plurality of bearings are mounted on the second rotating shaft, a limit platform is provided on the inner side of the inner bearing of the second rotating shaft, one end face of the annular mounting plate is pressed against the limit platform, the other end face of the annular mounting plate is locked with a nut, and a thread matching the nut is provided on the second rotating shaft.

[0014] Preferably, the heat sink includes an annular mounting plate, which is mounted on the second rotating shaft. An outer cover is provided on the outer circumference of the annular mounting plate, and a plurality of cavities are evenly spaced inside the outer cover. A guide vane is provided in each cavity, and the inner end surface of the guide vane is connected to the annular mounting plate through a spring. The guide vanes are obliquely distributed on the outer circumference of the annular mounting plate, and an opening is provided on the outer circular end surface of the outer cover for the guide vanes to enter and exit the cavity.

[0015] Preferably, a plurality of bearings are mounted on the second rotating shaft, a limit platform is provided on the inner side of the inner bearing of the second rotating shaft, one end face of the annular mounting plate is pressed against the limit platform, a plurality of threaded holes are provided on the end face of the limit platform facing the annular mounting plate, a plurality of through holes corresponding to the threaded holes are provided on the annular mounting plate, and the annular mounting plate is fixed to the limit platform after bolts pass through the through holes and the threaded holes in sequence.

[0016] Preferably, the heat sink includes an annular mounting plate, which is mounted on the second rotating shaft, an annular friction plate is arranged on the outer circumference of the annular mounting plate, the annular friction plate and the annular mounting plate are connected by a spring, an annular sliding plate is arranged on the outer circumference of the annular friction plate, a plurality of adjacent guide plates staggered end to end are distributed in an annular manner on the outer end surface of the annular sliding plate, the guide plate is obliquely mounted on the annular sliding plate, and a gap is provided between two adjacent guide plates, the second rotating shaft is symmetrically provided with sliding covers at the front and rear ends of the annular sliding plate, and the outer edge ends of the two sliding covers are respectively connected to the annular sliding plate by a plurality of ball bearings.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the split spindle box is symmetrically provided with a lubrication table on the side wall of the spindle box, and a lubrication oil groove is formed between the slide and the spindle box, and a lubrication oil circuit is provided at the rear end of the spindle box, and then the lubrication oil circuit is connected to the lubrication oil groove and the mounting shaft hole respectively, so that the lubrication oil thrown to the side wall of the spindle box when the first rotating shaft rotates will flow into the lubrication oil groove, and then flow into the lubrication oil circuit along the lubrication oil groove, thereby entering the mounting shaft hole to re-lubricate the rotating shaft, a front mounting shaft hole is provided at the front end of the spindle box, and first refueling holes are symmetrically provided on both sides of the front mounting shaft hole to facilitate the addition of lubrication oil, a heat sink is provided on the second rotating shaft, which can effectively guide the flow direction of the lubrication oil, the overall structural design is reasonable, and the loss of lubrication oil is effectively reduced, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the embodiment 1 of the present invention is shown in FIG. Figure 1 .

[0019] Figure 2 The structure of the embodiment 1 of the present invention is shown in FIG. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the structure of the lubricating oil circuit of Example 1 of the present invention.

[0021] Figure 4 It is a partial cross-sectional view of the spindle box of embodiment 1 of the present invention.

[0022] Figure 5 This is a schematic structural diagram of the first refueling hole of Example 1 of the present invention.

[0023] Figure 6 Schematic diagram of the internal structure of Example 1 of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of the heat sink of Example 1 of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure of the heat sink of Example 2 of the present invention.

[0026] Fig. 9 This is a reference diagram of the working state of the heat sink of embodiment 2 of the present invention.

[0027] Fig.10 This is a schematic diagram of the structure of the heat sink of Example 3 of the present invention.

[0028] Fig.11 Schematic diagram of the connection between the annular sliding plate and the sliding cover of Example 3 of the present invention.

[0029] Markings in the figure: 1. Spindle box; 2. Lubrication table; 3. Lubricating oil groove; 4. Rear input shaft hole; 5. Lubricating oil circuit; 6. Second oil filling hole; 7. First oil through hole; 8. Second oil through hole; 9. First rotating shaft; 10. Heat sink; 11. Front mounting shaft hole; 12. First oil filling hole; 13. Second rotating shaft; 14. Upper box body; 15. Lower box body; 16. Guide plate; 17. Annular mounting plate; 18. Nut; 19. Limit table; 20. Bearing; 21. Annular mounting plate; 22. Outer cover; 23. Cavity; 24. Spring; 27. Annular mounting plate; 28. Annular friction plate; 29. ​​Spring; 30. Annular slide; 31. Slide cover; 32. Ball. DETAILED DESCRIPTION

[0030] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0031] Embodiment 1, as Figures 1 to 7 As shown, a split spindle box includes a spindle box 1, wherein the spindle box 1 includes an upper box body 14 and a lower box body 15, wherein the upper box body 14 is detachably mounted on the top of the lower box body 15, wherein a rear input shaft hole 4 is provided at the rear end of the spindle box 1, wherein a first rotating shaft 9 is rotatably mounted at the rear input shaft hole 4, wherein a front mounting shaft hole 11 is provided at the front end of the spindle box 1, wherein a second rotating shaft 13 transmission-connected to the first rotating shaft 9 is rotatably mounted at the front mounting shaft hole 11, and a lubrication circulation system is arranged in the spindle box 1.

[0032] In this embodiment, the lubrication circulation system includes two lubrication oil circuits 5, which are symmetrically arranged on both sides of the rear input shaft hole 4. A lubrication platform 2 is symmetrically arranged on the two inner side walls at the rear end of the spindle box 1. A lubrication oil groove 3 is formed between the lubrication platform 2 and the spindle box 1. The two lubrication oil circuits 5 are respectively connected to the rear input shaft hole 4, and the lubrication oil circuit 5 and the lubrication oil groove 3 on the same side are connected. A heat sink 10 is arranged on the second rotating shaft 13. The spindle box 1 is symmetrically provided with first oiling holes 12 on both sides of the front mounting shaft hole 11, and the two ends of the first oiling hole 12 are respectively connected to the inside and outside of the spindle box 1.

[0033] In this embodiment, the lubricating oil passage 5 is arranged in a cross shape, and the lubricating oil passage 5 has two second oiling holes 6 connected to the outside of the spindle box 1 .

[0034] In this embodiment, a first oil through hole 7 is provided between the lubricating oil passage 5 and the lubricating oil groove 3 , and a second oil through hole 8 is provided between the lubricating oil passage 5 and the rear input shaft hole 4 .

[0035] In this embodiment, the first oil hole 7 is higher than the second oil hole 8 , and a smooth slope is formed between the first oil hole 7 and the second oil hole 8 .

[0036] In this embodiment, the outer hole diameter of the lubricating oil passage 5 close to the outside of the spindle box 1 is larger than the inner hole diameter.

[0037] In this embodiment, the lubricating oil groove 3 is a smooth inclined surface, and the first oil hole 7 is located at the low point of the lubricating oil groove 3 .

[0038] In this embodiment, the first oil filling hole 12 is provided on the upper case 14 , and the lubricating oil passage 5 is provided on the lower case 15 .

[0039] In this embodiment, the heat sink 10 includes an annular mounting plate 17, which is mounted on the second rotating shaft 13. The outer end surface of the annular mounting plate 17 is annularly distributed with a plurality of adjacent guide vanes 16 that are staggered end to end, and there is a gap between two adjacent guide vanes 16. The guide vanes 16 are obliquely mounted on the annular mounting plate 17.

[0040] In this embodiment, a plurality of bearings 20 are installed on the second rotating shaft 13, and a limiting platform 19 is provided on the inner side of the inner bearing 20 of the second rotating shaft 13. One end face of the annular mounting plate 17 is against the limiting platform 19, and the other end face of the annular mounting plate 17 is locked with a nut 18. The second rotating shaft 13 is provided with a thread matching the nut 18.

[0041] Example 2, please refer to Figures 1 to 9 A split spindle box comprises a spindle box 1, wherein the spindle box 1 comprises an upper box body 14 and a lower box body 15, wherein the upper box body 14 is detachably mounted on the top of the lower box body 15, wherein a rear input shaft hole 4 is provided at the rear end of the spindle box 1, wherein a first rotating shaft 9 is rotatably mounted at the rear input shaft hole 4, wherein a front mounting shaft hole 11 is provided at the front end of the spindle box 1, wherein a second rotating shaft 13 transmission-connected to the first rotating shaft 9 is rotatably mounted at the front mounting shaft hole 11, and a lubrication circulation system is arranged in the spindle box 1.

[0042] In this embodiment, the lubrication circulation system includes two lubrication oil circuits 5, which are symmetrically arranged on both sides of the rear input shaft hole 4. A lubrication platform 2 is symmetrically arranged on the two inner side walls at the rear end of the spindle box 1. A lubrication oil groove 3 is formed between the lubrication platform 2 and the spindle box 1. The two lubrication oil circuits 5 are respectively connected to the rear input shaft hole 4, and the lubrication oil circuit 5 and the lubrication oil groove 3 on the same side are connected. A heat sink 10 is arranged on the second rotating shaft 13. The spindle box 1 is symmetrically provided with first oiling holes 12 on both sides of the front mounting shaft hole 11, and the two ends of the first oiling hole 12 are respectively connected to the inside and outside of the spindle box 1.

[0043] In this embodiment, the lubricating oil passage 5 is arranged in a cross shape, and the lubricating oil passage 5 has two second oiling holes 6 connected to the outside of the spindle box 1 .

[0044] In this embodiment, a first oil through hole 7 is provided between the lubricating oil passage 5 and the lubricating oil groove 3 , and a second oil through hole 8 is provided between the lubricating oil passage 5 and the rear input shaft hole 4 .

[0045] In this embodiment, the first oil hole 7 is higher than the second oil hole 8 , and a smooth slope is formed between the first oil hole 7 and the second oil hole 8 .

[0046] In this embodiment, the outer hole diameter of the lubricating oil passage 5 close to the outside of the spindle box 1 is larger than the inner hole diameter.

[0047] In this embodiment, the lubricating oil groove 3 is a smooth inclined surface, and the first oil hole 7 is located at the low point of the lubricating oil groove 3 .

[0048] In this embodiment, the first oil filling hole 12 is provided on the upper case 14 , and the lubricating oil passage 5 is provided on the lower case 15 .

[0049] The difference between Example 2 and Example 1 is that: the heat sink 16 includes an annular mounting plate 21, the annular mounting plate 21 is mounted on the second rotating shaft 13, the outer circumference of the annular mounting plate 21 is provided with an outer cover 22, a plurality of cavities 23 are evenly distributed in the outer cover 22, each cavity 23 is provided with a guide vane 16, the inner end surface of the guide vane 16 is connected to the annular mounting plate 21 through a spring 24, the guide vane 16 is obliquely distributed on the outer circumference of the annular mounting plate 21, and the outer circumferential end surface of the outer cover 22 is provided with an opening for the guide vane 16 to enter and exit the cavity 23. During the use of the bearing, if too much lubricating oil is added, It is easy to cause increased resistance to bearing rotation, increased temperature and energy consumption, and increased temperature will lead to faster oxidation of the lubricating oil. In Example 2, when the second rotating shaft 13 rotates at a low speed, the guide vane 16 is pulled by the spring 24 and is located in the cavity, and the lubricating oil is not diverted. When the second rotating shaft 13 rotates at a high speed, due to the action of the centripetal force, the spring 24 is stretched outward, thereby pushing the guide vane 16 out of the cavity 23. The guide vane 16 rotates with the rotation of the second rotating shaft 13 to form a diversion effect for the lubricating oil, and effectively adjusts the circulation feed speed of the bearing lubricating oil according to the rotation speed of the second rotating shaft 13 to avoid too much or too little lubricating oil on the bearing of the rotating shaft.

[0050] In this embodiment, a plurality of bearings 20 are mounted on the second rotating shaft 13, a limiting platform 19 is provided on the inner side of the inner bearing 20 of the second rotating shaft 13, one end face of the annular mounting plate 17 is pressed against the limiting platform 19, a plurality of threaded holes are provided on the end face of the limiting platform 19 facing the annular mounting plate 17, a plurality of through holes corresponding to the threaded holes are provided on the annular mounting plate 17, and the annular mounting plate 17 is fixed on the limiting platform 19 by bolts passing through the through holes and the threaded holes in sequence.

[0051] Example 3, please refer to Figures 1 to 11 A split spindle box comprises a spindle box 1, wherein the spindle box 1 comprises an upper box body 14 and a lower box body 15, wherein the upper box body 14 is detachably mounted on the top of the lower box body 15, wherein a rear input shaft hole 4 is provided at the rear end of the spindle box 1, wherein a first rotating shaft 9 is rotatably mounted at the rear input shaft hole 4, wherein a front mounting shaft hole 11 is provided at the front end of the spindle box 1, wherein a second rotating shaft 13 transmission-connected to the first rotating shaft 9 is rotatably mounted at the front mounting shaft hole 11, and a lubrication circulation system is arranged in the spindle box 1.

[0052] In this embodiment, the lubrication circulation system includes two lubrication oil circuits 5, which are symmetrically arranged on both sides of the rear input shaft hole 4. A lubrication platform 2 is symmetrically arranged on the two inner side walls at the rear end of the spindle box 1. A lubrication oil groove 3 is formed between the lubrication platform 2 and the spindle box 1. The two lubrication oil circuits 5 are respectively connected to the rear input shaft hole 4, and the lubrication oil circuit 5 and the lubrication oil groove 3 on the same side are connected. A heat sink 10 is arranged on the second rotating shaft 13. The spindle box 1 is symmetrically provided with first oiling holes 12 on both sides of the front mounting shaft hole 11, and the two ends of the first oiling hole 12 are respectively connected to the inside and outside of the spindle box 1.

[0053] In this embodiment, the lubricating oil passage 5 is arranged in a cross shape, and the lubricating oil passage 5 has two second oiling holes 6 connected to the outside of the spindle box 1 .

[0054] In this embodiment, a first oil through hole 7 is provided between the lubricating oil passage 5 and the lubricating oil groove 3 , and a second oil through hole 8 is provided between the lubricating oil passage 5 and the rear input shaft hole 4 .

[0055] In this embodiment, the first oil hole 7 is higher than the second oil hole 8 , and a smooth slope is formed between the first oil hole 7 and the second oil hole 8 .

[0056] In this embodiment, the outer hole diameter of the lubricating oil passage 5 close to the outside of the spindle box 1 is larger than the inner hole diameter.

[0057] In this embodiment, the lubricating oil groove 3 is a smooth inclined surface, and the first oil hole 7 is located at the low point of the lubricating oil groove 3 .

[0058] In this embodiment, the first oil filling hole 12 is provided on the upper case 14 , and the lubricating oil passage 5 is provided on the lower case 15 .

[0059] The difference between Example 3 and Example 1 is that: the heat sink 16 includes an annular mounting plate 27, the annular mounting plate 27 is mounted on the second rotating shaft 13, the outer circumference of the annular mounting plate 27 is provided with an annular friction plate 28, the annular friction plate 28 and the annular mounting plate 27 are connected by a spring 29, the outer circumference of the annular friction plate 28 is provided with an annular sliding plate 30, the outer end surface of the annular sliding plate 30 is annularly distributed with a plurality of adjacent guide plates 16 staggered end to end, the guide plates 16 are obliquely mounted on the annular sliding plate 30, and there is a gap between two adjacent guide plates 16, the second rotating shaft 13 is symmetrically provided with sliding covers 31 at the front and rear ends of the annular sliding plate 30, and the outer edge ends of the two sliding covers 31 are respectively connected to the annular sliding plate 30 by a plurality of ball bearings 32. During the use of the bearing, if too much lubricating oil is added, it is easy to cause the bearing rotation resistance to increase, temperature and energy consumption Increased, and the temperature increase will lead to faster oxidation of the lubricating oil. In Example 3, when the second rotating shaft 13 rotates at a low speed, the annular slide 30 is located between the two slide covers 31. Due to the action of the ball 32, the annular slide 30 will not rotate with the second rotating shaft 13, and the guide plate 16 is also relatively fixed on the annular slide 30, and the lubricating oil is not guided. When the second rotating shaft 13 rotates at a high speed, due to the action of the centripetal force, the spring 29 is stretched outward, thereby pushing out the annular friction plate 28, so that the outer edge end surface of the annular friction plate 28 is against the inner edge end surface of the annular slide 30, and the annular slide 30 is driven by the friction force to rotate with the second rotating shaft 13, so that the guide plate 16 can rotate with the rotation of the second rotating shaft 13 to form a guiding effect of the lubricating oil, and effectively adjust the circulation feed speed of the bearing lubricating oil according to the rotation speed of the second rotating shaft 13 to avoid too much or too little lubricating oil on the bearing of the rotating shaft.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equalization change and modification made to the above embodiment by any technician familiar with the field without departing from the content of the technical solution of the present invention according to the technical essence of the present invention shall fall within the scope of the present invention.

Claims

1. A split spindle box, Features: The spindle box comprises an upper box body and a lower box body, the upper box body is detachably mounted on the top of the lower box body, a rear input shaft hole is provided at the rear end of the spindle box, a first rotating shaft is rotatably mounted at the rear input shaft hole, a front mounting shaft hole is provided at the front end of the spindle box, a second rotating shaft connected to the first rotating shaft is rotatably mounted at the front mounting shaft hole, and a lubrication circulation system is provided in the spindle box; The lubrication circulation system comprises two lubrication oil circuits, which are symmetrically arranged on both sides of the rear input shaft hole. A lubrication platform is symmetrically arranged on the two inner side walls at the rear end of the spindle box. A lubrication oil groove is formed between the lubrication platform and the spindle box. The two lubrication oil circuits are respectively connected to the rear input shaft hole, and the lubrication oil circuit on the same side is connected to the lubrication oil groove. A heat sink is arranged on the second rotating shaft. The spindle box is symmetrically provided with first oiling holes on both sides of the front mounting shaft hole, and the two ends of the first oiling hole are respectively connected to the inside and outside of the spindle box; The heat sink includes an annular mounting plate, which is mounted on the second rotating shaft. An outer cover is arranged on the outer circumference of the annular mounting plate. A plurality of cavities are evenly distributed inside the outer cover. A guide vane is arranged in each cavity. The inner end surface of the guide vane is connected to the annular mounting plate through a spring. The guide vanes are obliquely distributed on the outer circumference of the annular mounting plate. An opening is provided on the outer circular end surface of the outer cover for the guide vanes to enter and exit the cavity.

2. The split spindle box according to claim 1, Features: The lubricating oil circuit is arranged in a cross shape, and has two second oil filling holes connected to the outside of the spindle box, a first oil hole is provided between the lubricating oil circuit and the lubricating oil groove, and a second oil hole is provided between the lubricating oil circuit and the rear input shaft hole, and the first oil hole is higher than the second oil hole.

3. The split spindle box according to claim 2, Features: The outer aperture of the lubricating oil passage close to the outside of the spindle box is larger than the inner aperture. The lubricating oil groove is a smooth inclined surface, and the first oil hole is located at the low point of the lubricating oil groove.

4. The split spindle box according to claim 3, Features: The first oil filling hole is provided on the upper box body, and the lubricating oil circuit is provided on the lower box body.

5. The split spindle box according to claim 1, Features: A plurality of bearings are installed on the second rotating shaft, and a limit platform is arranged on the inner side of the inner bearing of the second rotating shaft, one end face of the annular mounting plate is pressed against the limit platform, a plurality of threaded holes are provided on the end face of the limit platform facing the annular mounting plate, a plurality of through holes corresponding to the threaded holes are provided on the annular mounting plate, and the annular mounting plate is fixed on the limit platform after bolts pass through the through holes and the threaded holes in sequence.

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