Bearing and rotating device using same

Abstract

The bearing comprises an outer sleeve and an inner sleeve, the inner wall of the outer sleeve is conical, the outer wall of the inner sleeve is conical, a first conical middle sleeve is arranged between the outer sleeve and the inner sleeve, a first conical rolling shaft is arranged between the outer sleeve and the first conical middle sleeve, and a second conical rolling shaft is arranged between the outer sleeve and the first conical middle sleeve. A first conical rolling shaft is arranged between the first conical middle sleeve and the inner sleeve, a second conical rolling shaft is arranged between the first conical middle sleeve and the inner sleeve, the bearings are symmetrically installed on the main shaft, the bearings are sleeved with the bearing pedestals, abrasion of the rolling shafts and the walls of the bearing pedestals can be compensated at any time through the adjusting screws, and the bearings do not need to be replaced. The impeller is driven by the main shaft to rotate, cooling liquid can enter from the liquid input pipe, heat is taken away through the space between the bearing and the rolling shaft, the friction force between the inner sleeve and the rolling shaft is increased during high-speed operation, the middle sleeve and the rolling shaft outside the middle sleeve can be driven to rotate together, and therefore the linear speed of the rolling shaft is dispersed, and the high-speed operation effect of the main shaft is achieved.

Description

Technical Field

[0001] The utility model relates to a bearing, in particular to a rotating device using the bearing. Background Art

[0002] my country has vast seas, a powerful navy and many warships. As the saying goes, speed is the only way to defeat all martial arts, so increasing the speed of warships is also a major issue. At present, the main shafts of my country's civilian ships are mainly made of bearings or sleeves. Because general bearings wear quickly due to the heavy main shafts, and replacement is very troublesome, the main shaft speed is only more than 1,000 revolutions, and the speed of more than 20 knots is already amazing. Warships can only reach more than 30 knots at most, and it is difficult to go faster. The main reason is that the speed is too fast, the bearings or sleeves will heat up and expand, and the bearings or sleeves need to be replaced about every five years, and the replacement cost is also very high.

[0003] In view of the above defects, the author of the utility model finally invented a bearing and a rotating device using the bearing after a long period of research, which are used to increase the speed of rotating shafts of warships and civilian ships in my country, and the bearing does not need to be replaced. Utility Model Content

[0004] The utility model aims to provide a bearing and a rotating device using the bearing, a bearing comprising an outer sleeve and an inner sleeve, characterized in that the inner wall of the outer sleeve is conical, the outer wall of the inner sleeve is conical, a first conical middle sleeve is arranged between the outer sleeve and the inner sleeve, a first conical roller is arranged between the outer sleeve and the first conical middle sleeve, and a second conical roller is arranged between the first conical middle sleeve and the inner sleeve;

[0005] There are two conical middle sleeves, namely: the first conical middle sleeve and the second conical middle sleeve, and a third conical roller is arranged between the first conical middle sleeve and the second conical middle sleeve;

[0006] The outer sleeve has one end with a wall thickness extending radially and is longer than the first tapered middle sleeve, the second tapered middle sleeve and the inner sleeve;

[0007] Both ends of the first tapered middle sleeve, the second tapered middle sleeve and the inner sleeve are longer than the first tapered roller, the second tapered roller and the third tapered roller, both ends of the first tapered roller, the second tapered roller and the third tapered roller are rounded, both ends of the first tapered middle sleeve are provided with bosses on both sides, and the bosses are rounded to match the first tapered roller and the second tapered roller;

[0008] Bosses are provided on the inner sides of both ends of the second tapered middle sleeve, and the bosses have rounded corners matching the two ends of the third tapered roller;

[0009] The bearing and the rotating device using the bearing include a main shaft and a bearing seat, the two ends of the main shaft are machined with steps, one symmetrical end of the bearing is installed on the main shaft close to the step, the bearing seat is sleeved on the bearing, the other end of the bearing is respectively provided with a sleeve for fixing the bearing, and the sleeves are respectively passed through the end surface of the bearing seat and are provided with nuts;

[0010] An impeller is respectively arranged at one end of the shaft sleeve inside the bearing seat;

[0011] The bearing seat is provided with screws for adjusting the outer sleeve;

[0012] The bearing seat is provided with a liquid input pipe and a liquid output pipe, and the liquid input pipe and the liquid output pipe are respectively connected to a cooling water tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the bearing shell or sleeve is replaced with a roller bearing, which reduces the friction, and the thick end of the outer sleeve is radially extended and lengthened. The wear of the roller and the bearing sleeve wall can be compensated at any time by adjusting the screw, so that there is no need to replace the bearing, and the problem of fast wear of the roller under high-speed operation due to the heavy weight of the main shaft is overcome. The impeller rotates under the drive of the main shaft, and can bring coolant into the liquid input pipe, and take away the heat through the space between the bearing rollers, so that the bearing does not heat up. When running at high speed, the friction between the inner sleeve and the roller increases, which will drive the middle sleeve and the rollers outside the middle sleeve to rotate together, thereby dispersing the linear speed of the rollers to achieve the effect of high-speed operation of the main shaft. The bearing and the device can also be used on the engine to match the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of a bearing and a rotating device using the bearing according to the utility model;

[0015] Figure 2 This is a structural schematic diagram of a bearing equipped with a tapered middle sleeve according to the utility model;

[0016] Figure 3 This is a structural schematic diagram of a bearing equipped with two tapered middle sleeves according to the utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of a bearing equipped with a tapered middle sleeve according to the utility model; Figure 5 This is a cross-sectional structural diagram of a bearing equipped with two tapered middle sleeves according to the utility model. DETAILED DESCRIPTION

[0018] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0019] As shown in the figure, a bearing and a rotating device using the bearing are provided, a bearing comprising an outer sleeve 7 and an inner sleeve 1, the inner wall of the outer sleeve 7 is conical, the outer wall of the inner sleeve 7 is conical, a first conical middle sleeve 3 is arranged between the outer sleeve 7 and the inner sleeve 1, a first conical roller 6 is arranged between the outer sleeve 7 and the first conical middle sleeve 3, a second conical roller 2 is arranged between the first conical middle sleeve 3 and the inner sleeve 1, there are two conical middle sleeves, namely: a first conical middle sleeve 3 and a second conical middle sleeve 5, a third conical roller 4 is arranged between the first conical middle sleeve 3 and the second conical middle sleeve, one end of the outer sleeve 7 wall thickness radially extends, is longer than the first conical middle sleeve 3 and the second conical middle sleeve The invention discloses a bearing and a rotating device using the bearing, wherein the first conical middle sleeve 3 and the second conical middle sleeve 5 and the inner sleeve 1 are both longer than the first conical roller 6, the second conical roller 2 and the third conical roller 4, and the first conical roller 6, the second conical roller 2 and the third conical roller 4 have rounded corners at both ends, and the first conical middle sleeve 3 is provided with bosses on both sides at both ends, and the bosses have rounded corners matching the first conical roller 6 and the second conical roller 2 at both ends, and the second conical middle sleeve 5 is provided with bosses on the inner sides at both ends, and the bosses have rounded corners matching the third conical roller 4 at both ends. There are steps at both ends of the shaft 10, and one end of the bearing is symmetrically mounted close to the step on the main shaft 10. The bearing seat 18 is sleeved on the bearing, and the other end of the bearing is respectively provided with a sleeve 11 for fixing the bearing. The sleeve 11 passes through the end surface of the bearing seat 18 and is provided with a nut 13. An impeller 12 is respectively provided at one end of the sleeve 11 inside the bearing seat 18. The bearing seat 18 is provided with a screw 9 for adjusting the sleeve 7. The bearing seat 18 is provided with a liquid input pipe 15 and a liquid output pipe 16. The liquid input pipe 15 and the liquid output pipe 16 are respectively connected to the cooling water tank 17. Since the main shaft 10 is heavy, the roller wear is relatively large under high-speed operation. The thick end of the outer sleeve 7 is radially extended and lengthened so that the outer sleeve 7 can be radially adjusted by adjusting the screw 9, and the wear of the roller and the bearing sleeve wall can be compensated at any time, so that the bearing does not need to be replaced. The impeller rotates under the drive of the main shaft 10, and the coolant can enter from the liquid input pipe 15, and take away the heat through the space between the bearing rollers, so that the bearing does not heat up. When running at high speed, the friction between the inner sleeve 1 and the roller increases, which will drive the middle sleeve and the rollers outside the middle sleeve to rotate together, thereby dispersing the linear speed of the rollers to achieve the effect of high-speed operation of the main shaft. The bearing and the device can also be used on the engine to match the main shaft.

[0020] The above is only a preferred embodiment of the utility model, which is only illustrative and not restrictive. Those skilled in the art understand that many changes, modifications, and even equivalences can be made within the spirit and scope defined by the claims of the utility model, but they will all fall within the scope of protection of the utility model.

Claims

1. A bearing, comprising an outer sleeve and an inner sleeve, characterized in that The inner wall of the outer sleeve is conical, the outer wall of the inner sleeve is conical, a first conical middle sleeve is arranged between the outer sleeve and the inner sleeve, a first conical roller is arranged between the outer sleeve and the first conical middle sleeve, and a second conical roller is arranged between the first conical middle sleeve and the inner sleeve.

2. A bearing according to claim 1, characterized in that: There are two conical middle sleeves, namely: the first conical middle sleeve and the second conical middle sleeve, and a third conical roller is arranged between the first conical middle sleeve and the second conical middle sleeve.

3. A bearing according to claim 2, characterized in that: One end of the outer sleeve wall thickness radially extends and is longer than the first tapered middle sleeve, the second tapered middle sleeve and the inner sleeve.

4. A bearing according to claim 3, characterized in that: Both ends of the first tapered middle sleeve, the second tapered middle sleeve and the inner sleeve are longer than the first tapered roller, the second tapered roller and the third tapered roller. Both ends of the first tapered roller, the second tapered roller and the third tapered roller are rounded. Both sides of the first tapered middle sleeve are provided with bosses, and the bosses are rounded to match the first tapered roller and the second tapered roller.

5. A bearing according to claim 4, characterized in that: Bosses are arranged on the inner sides of both ends of the second tapered middle sleeve, and both bosses have rounded corners matching with the two ends of the third tapered roller.

6. A rotating device using a bearing as claimed in any one of claims 1 to 5, comprising a main shaft and a bearing seat, characterized in that: The two ends of the main shaft are machined with steps, one end of the bearing is symmetrically installed on the main shaft close to the step, the bearing seat is sleeved on the bearing, and the other end of the bearing is respectively provided with a sleeve for fixing the bearing, and the sleeves are respectively passed through the end surface of the bearing seat and are provided with nuts.

7. The rotating device according to claim 6, characterized in that An impeller is respectively arranged at one end of the shaft sleeve inside the bearing seat.

8. The rotating device according to claim 7, characterized in that The bearing seat is provided with screws for adjusting the outer sleeve.

9. The rotating device according to claim 8, characterized in that The bearing seat is provided with a liquid input pipe and a liquid output pipe, and the liquid input pipe and the liquid output pipe are respectively connected to a cooling water tank.

Images