CN212868165U

CN212868165U - Shaft end limiting structure

Info

Publication number: CN212868165U
Application number: CN202021227248.9U
Authority: CN
Inventors: 潘树
Original assignee: Changsha Huaheng Robot System Co ltd
Current assignee: Changsha Huaheng Robot System Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-04-02
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses an axle head limit structure, including fixed frame, transmission shaft, drive wheel and axle head baffle, the transmission shaft is installed in fixed frame, the one end that fixed frame was stretched out to the transmission shaft stretches out the tip for the axle, on the transmission shaft was located to the drive wheel, the axle head baffle is fixed in fixed frame and spanes and stretches out the tip at the axle, axle head limit structure still includes threaded fastener, threaded fastener passes the axle head baffle and stretches into in the axle stretches out the tip, the offset has between the axis of threaded fastener and transmission shaft. The utility model discloses because threaded fastener does not coincide with the axis of transmission shaft, the two has certain offset, and the transmission shaft will not follow the drive wheel and rotate, and threaded fastener also can not become flexible, and simultaneously, this axle head baffle can restrict the system axial motion of transmission shaft again, has realized inhibiting the rotation and the axial motion of transmission shaft again when reducing manufacturing cost and the installation degree of difficulty.

Description

Shaft end limiting structure

Technical Field

The utility model relates to a drive mechanism especially relates to a shaft end limit structure.

Background

In the prior art, power transmission and power redirection among mechanisms mostly adopt chain wheels, synchronizing wheels and redirection wheels, at present, most of the existing wheels are sleeved on a transmission shaft, and the transmission shaft is easy to loosen, low in transmission efficiency, short in service life, and required to be frequently maintained and replaced, so that the production benefit is influenced. Some other securing means may be difficult to machine or may not prevent rotation of the shaft.

The existing fixing mode of transition wheels or redirection wheel shafts comprises the following steps: shaft end baffle mode. As shown in fig. 1 and 2, the shaft end baffle 3 is installed by machining a groove 21 on the transmission shaft 2 and limiting the rotation of the transmission shaft by the shaft end baffle 3, and the fixing mode has the advantages that: preventing rotation of the shaft and axial movement of the stationary shaft. The disadvantages are as follows: the shaft is provided with a groove, the increased processing cost and the groove width are larger than the thickness of the baffle plate, so that the axial movement cannot be completely limited, and the groove width is close to the baffle plate, so that the installation difficulty is increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide one kind and can restrain the rotatory and axial motion's of transmission shaft axle head limit structure when reducing manufacturing cost and the installation degree of difficulty.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides an axle head limit structure, includes fixed frame, transmission shaft, drive wheel and axle head baffle, the transmission shaft is installed in fixed frame, the one end that the transmission shaft stretches out fixed frame stretches out the tip for the axle, the drive wheel is located on the transmission shaft, the axle head baffle is fixed in fixed frame and spanes and stretches out the tip at the axle, axle head limit structure still includes threaded fastener, threaded fastener passes the axle head baffle and stretches into in the axle stretches out the tip, the offset distance has between the axis of threaded fastener and transmission shaft.

As a further improvement of the technical scheme, two ends of the shaft end baffle are respectively fixed on the fixed frame through threaded connecting pieces.

As a further improvement of the technical scheme, a connecting threaded hole matched with the threaded connecting piece is formed in the fixed rack.

As a further improvement of the above technical solution, the threaded connector is a connecting bolt.

As a further improvement of the technical scheme, the shaft end baffle is a square plate.

As a further improvement of the technical scheme, the width of the shaft end baffle is smaller than the diameter of the transmission shaft.

As a further improvement of the technical scheme, a fastening threaded hole matched with the threaded fastener is formed in the transmission shaft.

As a further improvement of the above technical solution, the threaded fastener is a fastening bolt.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses an axle head limit structure, the axle head baffle is fixing the back in fixed frame, be connected with the transmission shaft at axle head baffle mid portion setting threaded fastener, because threaded fastener does not coincide with the axis O of transmission shaft, the two has certain offset, the transmission shaft will not follow the drive wheel and rotate, threaded fastener also can not become flexible, and simultaneously, this axle head baffle can limit the system axial motion of transmission shaft again, will solve again when reducing the manufacturing cost and the installation degree of difficulty and restrain the rotation of axle and axial motion after the installation is accomplished, perfect solution the defect among the prior art.

Drawings

Fig. 1 is a schematic perspective view of a shaft end limiting structure in the prior art.

Fig. 2 is a front view structural diagram of a shaft end limiting structure in the prior art.

Fig. 3 is a schematic perspective view of the shaft end limiting structure of the present invention.

Fig. 4 is a schematic structural view of the shaft end limiting structure of the present invention.

The reference numerals in the figures denote:

1. fixing the frame; 2. a drive shaft; 21. a groove; 22. a shaft extension end; 3. a driving wheel; 4. a shaft end baffle; 5. a threaded fastener; 6. a threaded connection.

Detailed Description

The invention is described in further detail below with reference to the drawings and specific examples.

As shown in fig. 3 and 4, the axle head limit structure of this embodiment, including fixed frame 1, transmission shaft 2, drive wheel 3 and axle head baffle 4, transmission shaft 2 is installed on fixed frame 1, the one end that transmission shaft 2 stretches out fixed frame 1 is the axle and stretches out tip 22, drive wheel 3 locates on transmission shaft 2, axle head baffle 4 is fixed on fixed frame 1 and is spanned at the axle and stretches out tip 22, axle head limit structure still includes threaded fastener 5, threaded fastener 5 passes axle head baffle 4 and stretches into in the axle stretches out tip 22, have the offset distance between the axis of threaded fastener 5 and transmission shaft 2.

This axle head limit structure, axle head baffle 4 is fixing the back in fixed frame 1, set up a threaded fastener 5 and be connected with transmission shaft 2 at axle head baffle 4 middle part, because threaded fastener 5 does not coincide with axis O (centre of rotation) of transmission shaft 2, the two has certain offset, transmission shaft 2 will not follow drive wheel 3 and rotate, threaded fastener 5 also can not become flexible, and simultaneously, this axle head baffle 4 can restrict transmission shaft 2's system axial motion again, will solve again when reducing the manufacturing cost and the installation degree of difficulty and restrain the rotation of axle and axial motion after the installation is accomplished, perfect solution the defect among the prior art.

The utility model discloses can reduce transmission shaft 2 and at the cost and the installation degree of difficulty of manufacturing process, the preparation of transmission shaft only need a car optical axis after, it can to punch and attack the tooth to put at tip non-centre of gyration, the required precision is not high, and can reach the rotation of restriction transmission shaft and purpose such as transmission axial motion, the assembly installation is simple, moreover, restricts transmission axial motion completely on some high-speed moving parts, can prevent the horizontal drunkenness of transmission shaft, makes the structure more stable. In the prior art, the shaft end baffle is limited by slotting on the transmission shaft, and if axial movement is completely limited, the width of the notch and the thickness of the shaft end baffle must be completely matched, so that the installation difficulty and the maintenance difficulty are increased.

In the present embodiment, the transmission wheel 3 is preferably a direction-changing wheel. In other embodiments, the transmission wheel 3 may be a wheel body such as a synchronizing wheel, a pulley, a sprocket, a gear, or a transition wheel.

In this embodiment, two ends of the shaft end baffle 4 are respectively fixed on the fixed frame 1 through the threaded connection parts 6. And a connecting threaded hole matched with the threaded connecting piece 6 is formed in the fixed frame 1. The threaded connection 6 is preferably a connecting bolt.

In this embodiment, the shaft end baffle 4 is a square plate. The width of the shaft end baffle 4 is smaller than the diameter of the transmission shaft 2. The length of which is greater than the diameter of the drive shaft 2.

In this embodiment, the transmission shaft 2 is provided with a fastening threaded hole that can be matched with the threaded fastener 5. The threaded fastener 5 is preferably a fastening bolt. The fastening threaded hole is manufactured in a punching and tapping mode.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides an axle head limit structure, includes fixed frame (1), transmission shaft (2), drive wheel (3) and axle head baffle (4), install on fixed frame (1) transmission shaft (2), the one end that fixed frame (1) was stretched out in transmission shaft (2) stretches out tip (22) for the axle, on transmission shaft (2) was located in drive wheel (3), its characterized in that: the shaft end baffle (4) is fixed on the fixed rack (1) and stretches over the shaft to stretch out the end part (22), the shaft end limiting structure further comprises a threaded fastener (5), the threaded fastener (5) penetrates through the shaft end baffle (4) to stretch into the shaft to stretch out the end part (22), and an offset distance is arranged between the threaded fastener (5) and the axis of the transmission shaft (2).

2. The shaft end limiting structure according to claim 1, wherein: two ends of the shaft end baffle (4) are respectively fixed on the fixed frame (1) through threaded connecting pieces (6).

3. The shaft end limiting structure according to claim 2, wherein: and a connecting threaded hole matched with the threaded connecting piece (6) is formed in the fixed rack (1).

4. The shaft end limiting structure according to claim 2, wherein: the threaded connecting piece (6) is a connecting bolt.

5. The shaft end limiting structure according to any one of claims 1 to 4, wherein: the shaft end baffle (4) is a square plate.

6. The shaft end limiting structure according to any one of claims 1 to 4, wherein: the width of the shaft end baffle (4) is smaller than the diameter of the transmission shaft (2).

7. The shaft end limiting structure according to any one of claims 1 to 4, wherein: and a fastening threaded hole matched with the threaded fastener (5) is formed in the transmission shaft (2).

8. The shaft end limiting structure according to any one of claims 1 to 4, wherein: the threaded fastener (5) is a fastening bolt.