Drive shaft bearing block mounting device

Abstract

A driving shaft bearing seat mounting device includes a shaft seat, a bearing set, a driving member and an adjusting member. The shaft seat has a mounting hole, an adjusting slot communicated with the mounting hole, and at least one installing hole communicated with the adjusting slot. The adjusting slot is divided into a first side wing and a second side wing. The installing hole extends from the first side wing to the second side wing. The bearing set is assembled in the mounting hole. The driving member is arranged in the mounting hole and is supported by the bearing set to rotate smoothly relative to the shaft seat. The adjusting member is installed in the installing hole and can adjust the width of the adjusting slot between the first side wing and the second side wing and the diameter of the mounting hole. When the adjusting member is operated to a loosened state, the diameter of the mounting hole is larger, and the bearing set is easily installed in the mounting hole.

Description

TECHNICAL FIELD

[0001] The present invention relates to a driving device, and in particular to a driving shaft bearing housing mounting device. BACKGROUND

[0002] A turbine power unit for a power tool (Taiwanese Patent No. I697381) includes a turbine housing having an internal space, a fluid-driven turbine rotatably mounted in the internal space, two bearings mounted in the internal space and located at both sides of the fluid-driven turbine, a shaft rod penetrating the fluid-driven turbine and the bearings, and a cover mounted in the internal space and disposed outside one of the bearings. Each end of the internal space has a maintenance opening, and the cover is detachably secured to one of the maintenance openings of the turbine housing. The maintenance openings allow the bearings to be installed in and removed from the internal space of the turbine housing. The cover is switched between an open configuration in which the bearings can be installed in or removed from the internal space of the turbine housing via the maintenance openings and a closed configuration in which the bearings installed in the internal space are fastened for operation in the turbine housing.

[0003] Although the turbine power unit for the power tool achieves the intended operational purpose, the removal and installation of the bearings are still quite time-consuming and labor-intensive even if the cover is removed from the corresponding maintenance opening. SUMMARY

[0004] The present invention aims to provide a driving shaft bearing housing mounting device in which the removal and installation of components are quite time-saving and labor-efficient.

[0005] The driving shaft bearing housing mounting device of the present invention includes a shaft housing, a bearing set, a driving member, and an adjusting member. The shaft housing has a mounting hole, an adjusting slot communicating with the mounting hole, and at least one installation hole communicating with the adjusting slot. The adjusting slot is divided into a first side wing and a second side wing, and the installation hole extends from the first side wing to the second side wing. The bearing set is assembled in the mounting hole. The driving member penetrates the mounting hole and is supported by the bearing set to rotate smoothly relative to the shaft housing. The adjusting member is installed in the installation hole and can adjust the width of the adjusting slot between the first side wing and the second side wing and the diameter of the mounting hole. The shaft housing also has a top end portion. The mounting hole of the shaft housing extends along an axis, the adjusting slot extends from the radial direction of the mounting hole relative to the axis toward the top end portion, and the adjusting slot is not in spatial communication with the top end portion. The length of the mounting hole along the axis is equal to the length of the adjusting slot along the axis.

[0006] The drive shaft bearing seat mounting device of the present application, the shaft seat further has a bottom end portion, and an intermediate section between the top end portion and the bottom end portion, the adjusting slot extends towards the intermediate section corresponding to the axis, and the adjusting slot separates a part of the intermediate section into the first side wing and the second side wing.

[0007] The drive shaft bearing seat mounting device of the present application, the shaft seat further has a gas passage communicated to the mounting hole, the bearing set has a plurality of bearings, the drive member has a shaft rod disposed in the bearing set and supported by the bearing set, and a turbine mounted on the shaft rod and disposed on one side of one of the bearings along the axis, the turbine corresponding to the gas passage.

[0008] The drive shaft bearing seat mounting device of the present application, the shaft rod of the drive member is a cutter.

[0009] The drive shaft bearing seat mounting device of the present application has the beneficial effect that the adjusting member is operated to switch between the locked and loosened states, the aperture of the mounting hole can be adjusted to be smaller or larger, and the bearing set can be easily mounted in the mounting hole or removed from the mounting hole, and the dismounting and mounting of the bearings are quite time-saving and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a perspective assembly view of one embodiment of the drive shaft bearing seat mounting device of the present application;

[0011] Figure 2 is a perspective exploded view of the embodiment;

[0012] Figure 3 is a combined cross-sectional view of the embodiment;

[0013] Figure 4 is a cross-sectional view taken along the straight line IV-IV in Figure 3 ;

[0014] Figure 5 is a cross-sectional view taken along the straight line V-V in Figure 3 ; DETAILED DESCRIPTION

[0015] The present application will be described in detail below with reference to the drawings and embodiments.

[0016] Referring to Figures 1 to 5 , one embodiment of the drive shaft bearing seat mounting device of the present application comprises a shaft seat 10, a bearing set 20, a drive member 30, and an adjusting member 40.

[0017] The shaft seat 10 has a top end portion 11, a bottom end portion 12 opposite to the top end portion 11 along a longitudinal direction Y, a middle section 101 between the top end portion 11 and the bottom end portion 12, a mounting hole 13 extending along an axis L perpendicular to the longitudinal direction Y and arranged at the bottom end portion 12, an adjusting groove 14 extending along the longitudinal direction Y and parallel to the axis L and communicating with the mounting hole 13, a mounting hole 15 communicating with the adjusting groove 14, and a gas passage 16 extending along the longitudinal direction Y and communicating with the mounting hole 13. In detail, the mounting hole 13 is defined by an inner peripheral surface 131, the adjusting groove 14 extends from the inner peripheral surface 131 of the mounting hole 13 corresponding to the axis L and along a radial direction of the mounting hole 13 towards the middle section 101, the mounting hole 15 extends along a center line L1 perpendicular to the axis L and the longitudinal direction Y, two sides of the adjusting groove 14 respectively form a first side wing 17 and a second side wing 18, the adjusting groove 14 does not communicate with the top end portion 11, the adjusting groove 14 separates a part of the middle section 101 into the first side wing 17 and the second side wing 18, the mounting hole 15 extends from the first side wing 17 to the second side wing 18 and has a stepped hole section 151 arranged at the first side wing 17 and a threaded hole section 152 arranged at the second side wing 18. The adjusting groove 14 extends from the mounting hole 13 towards the top end portion 11 along a radial direction relative to the axis L, and the adjusting groove 14 does not communicate with the top end portion 11 in space. The length of the mounting hole 13 along the axis L is equal to the length of the adjusting groove 14 along the axis L.

[0018] The bearing set 20 is arranged in the mounting hole 13 and has three bearings 21 arranged along the axis L.

[0019] The driving member 30 is arranged in the mounting hole 13 and is supported by the bearing set 20 to rotate smoothly relative to the shaft seat 10. The driving member 30 has a shaft 31 arranged in the bearing set 20 and supported by the bearing set 20, and a turbine 32 fixed to the shaft 31 and arranged at one side of one of the bearings 21 along the axis L, the turbine 32 corresponding to the gas passage 16. The shaft 31 of the embodiment is a cutter.

[0020] The adjusting member 40 is arranged in the mounting hole 15 and has a head 41 positioned at the stepped hole section 151 and a screw rod 42 screwed in the threaded hole section 152. The adjusting member 40 can adjust the width of the adjusting groove 14 between the first side wing 17 and the second side wing 18 and can adjust the hole diameter of the mounting hole 13.

[0021] For further understanding of the effects, technical means and expected effects generated by the cooperation of the components of the present application, the following will be further described, and it is believed that the present application can be better understood.

[0022] As Figure 1 and Figures 3 to 5 shown, when the driving shaft bearing seat mounting device of the present application is assembled as a whole, and the adjusting member 40 is in the locked state, the width of the adjusting slot 14 between the first side wing 17 and the second side wing 18 is smaller, and the diameter of the mounting hole 13 is also smaller, so that the bearing 21 of the bearing set 20 is tightly fixed in the mounting hole 13 by the inner circumferential surface 131, and the turbine 32 of the driving member 30 cannot be tightly fixed, and can smoothly rotate relative to the shaft seat 10. When the pressure gas is guided by the gas guiding channel 16 to the mounting hole 13, the turbine 32 and the shaft rod 31 (cutter) can be driven to rotate, and the machining purpose can be further achieved.

[0023] When the adjusting member 40 is operated to be in the loosened state, the width of the adjusting slot 14 between the first side wing 17 and the second side wing 18 is larger than that in the locked state, and the diameter of the mounting hole 13 is also larger, so that there is a gap between the bearing 21 of the bearing set 20 and the inner circumferential surface 131, and the bearing 21 and the driving member 30 can be easily removed from the mounting hole 13.

[0024] That is to say, the adjusting member 40 of the present application can be operated to expand or contract the mounting hole 13, and the bearing set 20 can be easily mounted or removed relative to the mounting hole 13, and the dismounting and mounting of the bearing set 20 are quite time-saving and labor-saving.

[0025] In summary, the driving shaft bearing seat mounting device of the present application has a simple overall structure and is easy to operate, and can indeed achieve the purpose of the present application.

Claims

1. A driving shaft bearing block mounting device, comprising a block, a bearing set, a driving member and an adjusting member, characterized in that: the block has a mounting hole, an adjusting slot communicated with the mounting hole, and an installation hole communicated with the adjusting slot, the adjusting slot has a first side wing and a second side wing on each side, and the installation hole extends from the first side wing to the second side wing; the bearing set is assembled in the mounting hole; the driving member is arranged in the mounting hole and is supported by the bearing set to rotate smoothly relative to the block; the adjusting member is installed in the installation hole and can adjust the width of the adjusting slot between the first side wing and the second side wing, and can adjust the aperture of the mounting hole; wherein the block further has a top end portion; wherein the mounting hole of the block extends along an axis, the adjusting slot extends from the radial direction of the mounting hole relative to the axis towards the top end portion, and the adjusting slot is not in space communication with the top end portion; wherein the length of the mounting hole along the axis is equal to the length of the adjusting slot along the axis.

2. The drive shaft bearing housing mounting arrangement of claim 1, wherein: The block further has a bottom end portion, and an intermediate section between the top end portion and the bottom end portion, the adjusting slot corresponds to the axis and extends towards the intermediate section, and the adjusting slot separates a part of the intermediate section into the first side wing and the second side wing.

3. The drive shaft bearing housing mounting apparatus of claim 1, wherein: The block further has a gas delivery channel communicated with the mounting hole, the bearing set has a plurality of bearings, the driving member has a shaft arranged in the bearing set and supported by the bearing set, and a turbine installed on the shaft and arranged on one side of one of the bearings along the axis, the turbine corresponds to the gas delivery channel.

4. The drive shaft bearing housing mounting apparatus of claim 3, wherein: The shaft of the driving member is a cutter.

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