CN212615906U

CN212615906U - High-speed bearings on new electric tools

Info

Publication number: CN212615906U
Application number: CN202021090859.3U
Authority: CN
Inventors: 刘前
Original assignee: NINGBO TONGREN BEARING CO Ltd
Current assignee: NINGBO TONGREN BEARING CO Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-02-26
Anticipated expiration: 2030-06-15

Abstract

The utility model relates to the technical field of high-speed rotating shafts, in particular to a high-speed bearing on a novel electric tool, which comprises an equipment shaft body and an acceleration device. One end of the equipment shaft body is provided with a sleeve hole, and the two equipment shaft bodies and the rear end of the equipment shaft body are arranged in the same direction. Symmetrically arranged, an acceleration device is fixedly connected to the inside of the equipment shaft body, a connecting block is fixedly connected to the front end of the equipment shaft body, the interior of the acceleration device includes a track, a slot and a rolling block, and the interior of the acceleration device is slidably connected with a rolling block, and The rolling block is arranged inside the track to match the size of the track, the bottom end of the card slot is fixedly connected to the top end of the track, and the rear end of the card slot is fixedly connected to the bottom end of the acceleration device. The equipment shaft body and the cover plate are arranged on the same axis, so as to ensure that the equipment shaft body is in the same axis when rotating, which can make the rotation more balanced and stable.

Description

Novel high-speed bearing on electric tool

Technical Field

The utility model relates to a high-speed pivot technical field especially relates to novel high-speed bearing on electric tool.

Background

Rolling bearings with Dmn values above 1.0x106mm.r/min are generally referred to as high speed bearings. Where Dm is the average diameter of the rolling bearing and n is the rotational speed of the inner ring. In practical applications, the value of Dmn of the high-speed inlet bearing has reached 3.0 x106mm.r/min.

Because the rotating speed can only reach 3 ten thousand revolutions in one minute in a common high-speed rotating shaft, the rotating speed of the proposed high-speed rotating shaft can reach 10 ten thousand revolutions in one minute.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel high-speed bearing on an electric tool.

In order to achieve the above purpose, the utility model adopts the following technical scheme: including the equipment axis body and accelerator, the one end of the equipment axis body is run through and has been seted up the trepanning, two equipment axis bodies are the symmetry setting with the rear end of the equipment axis body, the inside fixedly connected with accelerator of the equipment axis body, the front end fixedly connected with connecting block of the equipment axis body, accelerator's inside is including the track, draw-in groove and rolling block, accelerator's inside sliding connection has the rolling block, and the rolling block setting is in orbital inside and orbital size of a dimension phase-match, the bottom fixed connection of draw-in groove is on orbital top, and the rear end of draw-in groove and accelerator's bottom fixed connection.

Preferably, the inside fixedly connected with baffle of accelerating device, the surperficial a week and the track fixed connection of baffle, and the baffle is circular setting.

Preferably, the one end fixedly connected with installation piece that the equipment axis body is close to accelerating device, the one end fixedly connected with apron that the installation piece is close to accelerating device.

Preferably, the cover plate is provided with a through hole in a penetrating way at the end far away from the equipment shaft body, the cover plate is provided with a heat dissipation hole in a penetrating way at the end far away from the equipment shaft body, and the heat dissipation hole and the axis of the through hole are in a circumferential array.

Preferably, the axes of the shaft body and the cover plate of the device are on the same horizontal line, and the device can rotate at a high speed up to 10 ten thousand revolutions per minute.

Based on the above scheme can know, this is novel through can confirm the position of rolling piece with the baffle, and the rethread equipment axis body rotates in the pivot, and under certain speed, the rolling piece can roll to the draw-in groove inside along orbital inner wall along the track, because of the interval between draw-in groove and the baffle is orbital length, in the rolling piece is along rolling to the draw-in groove, the rolling piece increases the rotation weight along with the draw-in groove rotates the pivoted distance that increases to reach and improve the effect at a rotating speed, after equipment pivot is stopped, rethread rolling piece's gravity influence, the rolling piece in the draw-in groove can roll to the baffle on, can guarantee low-speed rotation like this.

The equipment shaft body and the cover plate can be arranged on the same shaft center through the arranged through holes and the arranged sleeve holes, so that the equipment shaft body can be ensured to be in the same shaft center when rotating, and the rotation is more balanced and stable.

Drawings

Fig. 1 is a schematic view of a high-speed bearing shaft of the novel electric tool according to the present invention;

fig. 2 is a schematic side view of the high-speed bearing of the novel electric tool of the present invention;

fig. 3 is a schematic diagram of the internal structure of the high-speed bearing on the novel electric tool provided by the present invention.

Illustration of the drawings:

1. a cover plate; 2. heat dissipation holes; 3. trepanning; 4. a baffle plate; 5. a card slot; 6. a track; 7. a rolling block; 8. mounting blocks; 9. an equipment shaft body; 10. an acceleration device; 11. connecting blocks; 12. and (6) perforating.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific circumstances.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1-3, the high-speed bearing on the novel electric tool comprises an equipment shaft body 9 and an accelerating device 10, and is characterized in that: trepanning 3 has been run through to the one end of equipment axis body 9, two equipment axis bodies 9 are the symmetry setting with the rear end of equipment axis body 9, the inside fixedly connected with accelerating device 10 of equipment axis body 9, the front end fixedly connected with connecting block 11 of equipment axis body 9, accelerating device 10's inside is including track 6, draw-in groove 5 and rolling block 7, accelerating device 10's inside sliding connection has rolling block 7, and rolling block 7 sets up at track 6's inside and track 6's size of a dimension phase-match, the bottom fixed connection of draw-in groove 5 is on track 6's top, and the rear end of draw-in groove 5 and accelerating device 10's bottom fixed connection.

Optionally, in this embodiment, the inside fixedly connected with baffle 4 of accelerating device 10, surface a week and track 6 fixed connection of baffle 4, and baffle 4 is circular setting, the equipment axis body 9 is close to the one end fixedly connected with installation piece 8 of accelerating device 10, the one end fixedly connected with apron 1 that installation piece 8 is close to accelerating device 10, the one end that equipment axis body 9 was kept away from to apron 1 runs through and has seted up perforation 12, the one end that equipment axis body 9 was kept away from to apron 1 runs through and has seted up louvre 2, and louvre 2 is the circumference array with the axle center of perforation 12, the equipment axis body 9 all is on same water flat line with the axle center of apron 1.

It is worth specifying that: through the perforation 12 and the trepanning 3 that set up can set up equipment axis body 9 and apron 1 on same axle center, can all be in same axle center with guaranteeing equipment axis body 9 when the rotation like this, can make pivoted more balanced like this, steady.

More specifically, the following are: in order to better enable the equipment to radiate heat and better determine the position of the rolling block, the surface of the baffle plate 4 is fixedly connected with the rail 6 in a circle, the baffle plate 4 is arranged in a circular shape, and in order to prevent the speed change of the equipment shaft body 9 caused by the ash entering of the equipment shaft body 9, the front end of the equipment shaft body 9 is provided with the cover plate 1 to better determine the position of the rolling block 7, so the baffle plate 4 is arranged inside the accelerating device 10.

The utility model discloses a theory of operation: the position of the rolling block 7 can be determined by the baffle 4, the equipment shaft body 9 rotates on the rotating shaft, the rolling block 7 can roll to the inside of the clamping groove 5 along the inner wall of the track 6 at a certain speed, the distance between the clamping groove 5 and the baffle 4 is the length of the track 6, the rolling block 7 rolls to the inside of the clamping groove 5 along the rolling direction, the rolling block 7 increases the rotating weight along with the rotating distance increased by the rotation of the clamping groove 5, and therefore the rotating speed is improved.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Novel high-speed bearing on electric tool, including equipment axis body (9) and accelerating device (10), its characterized in that: trepanning (3) have been run through to the one end of equipment axis body (9), two the equipment axis body (9) is the symmetry setting with the rear end of equipment axis body (9), the inside fixedly connected with accelerating device (10) of equipment axis body (9), the front end fixedly connected with connecting block (11) of equipment axis body (9), the inside of accelerating device (10) is including track (6), draw-in groove (5) and rolling block (7), the inside sliding connection of accelerating device (10) has rolling block (7), and rolling block (7) set up the size of a dimension phase-match in the inside of track (6) and track (6), the bottom fixed connection of draw-in groove (5) is on the top of track (6), and the bottom fixed connection of the rear end of draw-in groove (5) and accelerating device (10).

2. The new high speed bearing on a power tool as claimed in claim 1, wherein: the inside fixedly connected with baffle (4) of accelerating device (10), the surperficial a week and track (6) fixed connection of baffle (4), and baffle (4) are circular setting.

3. The new high speed bearing on a power tool as claimed in claim 1, wherein: the equipment shaft body (9) is close to one end fixedly connected with installation block (8) of accelerating device (10), one end fixedly connected with apron (1) that installation block (8) is close to accelerating device (10).

4. The new high speed bearing on a power tool as claimed in claim 3, wherein: the cover plate is characterized in that a through hole (12) is formed in one end, away from the equipment shaft body (9), of the cover plate (1) in a penetrating mode, a heat dissipation hole (2) is formed in one end, away from the equipment shaft body (9), of the cover plate (1) in a penetrating mode, and the heat dissipation hole (2) and the axis of the through hole (12) are in a circumferential array.

5. The new high speed bearing on a power tool as claimed in claim 2, wherein: the axis of the equipment shaft body (9) and the axis of the cover plate (1) are on the same horizontal line.