阅读说明：本技术 一种螺杆不转螺母旋转的升降机构 (Lifting mechanism with screw rod capable of rotating without nut rotation ) 是由 王宝珠 段玉宝 王冰 于 2020-10-30 设计创作，主要内容包括：本发明公开了一种螺杆不转螺母旋转的升降机构,包括保护壳体、主动轴、螺杆,所述主动轴一侧端部设置主动伞齿轮,所述主动伞齿轮与从动伞齿轮啮合连接,所述从动伞齿轮与螺母连接,所述螺母与螺杆螺纹连接,所述主动轴外表面设置轴承座,所述螺杆外表面设置主轴承座,所述轴承座与所述主动轴之间设置轴承,所述主轴承座与螺杆之间设置轴承,所述从动伞齿轮远离轴承座一侧设置挡油套,所述挡油套另一端凸出保护壳体,所述保护壳体与主轴承座固定连接。(The invention discloses a lifting mechanism for a screw rod to rotate without rotating a nut, which comprises a protective shell, a driving shaft and a screw rod, wherein a driving bevel gear is arranged at the end part of one side of the driving shaft, the driving bevel gear is meshed with a driven bevel gear, the driven bevel gear is connected with the nut, the nut is in threaded connection with the screw rod, a bearing seat is arranged on the outer surface of the driving shaft, a main bearing seat is arranged on the outer surface of the screw rod, a bearing is arranged between the bearing seat and the driving shaft, a bearing is arranged between the main bearing seat and the screw rod, an oil blocking sleeve is arranged on one side, away from the bearing seat, of the driven bevel gear, the other end of.)

1. The utility model provides a rotatory elevating system of screw rod nonrotation nut which characterized in that: comprises a protective shell (1), a driving shaft (2) and a screw (4), wherein a driving bevel gear (3) is arranged at the end part of one side of the driving shaft (2), the driving bevel gear (3) is engaged with the driven bevel gear (5), the driven bevel gear (5) is connected with the nut (10), the nut (10) is in threaded connection with the screw (4), a bearing seat (12) is arranged on the outer surface of the driving shaft (2), a main bearing seat (7) is arranged on the outer surface of the screw rod (4), a bearing (6) is arranged between the bearing seat (12) and the driving shaft (2), a bearing (6) is arranged between the main bearing seat (7) and the screw rod (4), an oil blocking sleeve (8) is arranged on one side of the driven bevel gear (5) far away from the bearing seat (7), the other end of the oil blocking sleeve (8) protrudes out of the protective shell (1), and the protective shell (1) is fixedly connected with the main bearing seat (7).

2. The elevating mechanism for a non-rotating screw nut of claim 1, wherein: the driving shaft (1) is arranged on the platform (9) through a supporting device.

3. The elevating mechanism for a non-rotating screw nut of claim 1, wherein: the bearing (6) is a roller taper bearing.

4. The elevating mechanism for a non-rotating screw nut of claim 1, wherein: the screw (4) is a bidirectional rectangular thread screw.

5. The elevating mechanism for a non-rotating screw nut of claim 1, wherein: and a ball (11) is arranged between the screw rod (4) teeth and the nut (10) teeth.

6. The elevating mechanism for a non-rotating screw nut of claim 1, wherein: and an included angle formed by the extension line of the driving shaft (2) and the extension line of the screw rod (4) is a right angle.

Technical Field

The invention relates to a lifting mechanism, in particular to a lifting mechanism with a screw rod capable of not rotating a nut.

Background

In the screw type low-rise elevator project of research and development, the direction of power output needs twice commutations to accomplish, this kind of mode needs a plurality of drive gear and steering gear, and transmission efficiency is generally lower, we directly design the nut as another right angle output shaft of steering gear, the work precision of each position has effectually been guaranteed like this, it is that worm gear transmission mode efficiency has promoted a lot more than general elevating system simultaneously, this kind of design application is very suitable in the mechanical structure that needs high-speed propulsion and thrust requirement is very big, simultaneously because the adjustment of structure, drive gear and two commodity steering gears in the middle of having reduced, reduce the noise that the transmission produced and the manufacturing cost of product by a wide margin, also effectively avoided the loss of the energy.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a lifting mechanism with a screw rod not rotating a nut to rotate.

In order to solve the technical problems, the technical scheme provided by the invention is that the screw lifting mechanism does not rotate a nut, the screw lifting mechanism comprises a protective shell, a driving shaft and a screw, a driving bevel gear is arranged at the end part of one side of the driving shaft and is meshed with a driven bevel gear, the driven bevel gear is connected with the nut, the nut is in threaded connection with the screw, a bearing seat is arranged on the outer surface of the driving shaft, a main bearing seat is arranged on the outer surface of the screw, a bearing is arranged between the bearing seat and the driving shaft, a bearing is arranged between the main bearing seat and the screw, an oil blocking sleeve is arranged on one side, far away from the bearing seat, of the driven bevel gear, the other end of the oil blocking sleeve.

As an improvement, the driving shaft is arranged on the platform through a supporting device.

As an improvement, the bearing is a roller taper bearing.

As an improvement, the screw is a bidirectional rectangular thread screw.

As an improvement, a ball is arranged between the screw rod teeth and the nut inner teeth.

As an improvement, an included angle formed by the extension line of the driving shaft and the extension line of the screw rod is a right angle.

Compared with the prior art, the invention has the advantages that: the integration of structure has reduced the manufacturing degree of difficulty, and manufacturing cost reduces by a wide margin, and control is simple and convenient, at the vertical during operation of screw rod, can use the screw rod as the guide rail, and the operating distance obtains effectual extension, and most mechanical vibrations can be along with this set of mechanism transfer to the screw rod on, under the condition that is provided with shock-absorbing measure on the screw rod, the noise of preventing of maximize.

Drawings

FIG. 1 is a schematic structural view of a lifting mechanism with a screw rotating without a nut rotating according to the present invention;

fig. 2 is a partially enlarged view of a screw and a nut of a lifting mechanism of the present invention in which the screw does not rotate the nut.

As shown in the figure: 1. the protective shell comprises a protective shell body, 2, a driving shaft, 3, a driving bevel gear, 4, a screw, 4a, screw teeth, 5, a driven bevel gear, 6, a bearing, 7, a main bearing seat, 8, an oil blocking sleeve, 9, a platform, 10, a nut, 10a, nut internal teeth, 11, a ball, 12 and a bearing sleeve.

Detailed Description

The following describes a lifting mechanism with a screw not rotating a nut in further detail with reference to the accompanying drawings.

With reference to fig. 1-2, a rotatory elevating system of screw rod nonrotating nut, includes protection casing 1, driving shaft 2, screw rod 4, 2 one side tip of driving shaft sets up initiative bevel gear 3, initiative bevel gear 3 is connected with the meshing of driven bevel gear 5, driven bevel gear 5 is connected with nut 10, nut 10 and screw rod 4 threaded connection, 2 surface of driving shaft set up bearing frame 12, 4 surface of screw rod set up main bearing seat 7, bearing frame 12 with set up bearing 6 between driving shaft 2, set up bearing 6 between main bearing seat 7 and the screw rod 4, driven bevel gear 5 keeps away from bearing seat 7 one side and sets up oil blocking sleeve 8, oil blocking sleeve 8 other end protrusion protection casing 1, protection casing 1 and main bearing seat 7 fixed connection.

As a preferred embodiment of the present embodiment, the driving shaft 1 is disposed on the platform 9 through a supporting device.

As a preferred embodiment of the present embodiment, the bearing 6 is a roller taper bearing.

As a preferred embodiment of the present embodiment, the screw 4 is a bidirectional rectangular screw.

In the preferred embodiment of the present embodiment, the balls 11 are disposed between the screw teeth 4a and the nut internal teeth 10 a.

As a preferred embodiment of the embodiment, an included angle formed by the extension line of the driving shaft 2 and the extension line of the screw rod 4 is a right angle.

When the device is implemented specifically, a driving bevel gear 3 is arranged at the end part of one side of a driving shaft 2, the driving bevel gear 3 is meshed with a driven bevel gear 5, the driven bevel gear 5 is connected with a nut 10, the nut 10 is in threaded connection with a screw rod 4, a bearing seat 12 is arranged on the outer surface of the driving shaft 2, a main bearing seat 7 is arranged on the outer surface of the screw rod 4, a bearing 6 is arranged between the bearing seat 12 and the driving shaft 2, the bearing 6 is arranged between the main bearing seat 7 and the screw rod 4, an oil blocking sleeve 8 is arranged on one side, far away from the bearing seat 7, of the driven bevel gear 5, the other end of the oil blocking sleeve 8 protrudes out of a protective shell 1, and the.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.