JPS6156962B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention provides a mechanism for inserting the free end of a scraping rod pivoted on a fixed eccentric shaft provided in the inner cavity of the cylinder into a retractable hole bored in the peripheral wall of the cylinder. This invention relates to a scraping roll that has a scraping rod that works to scrape grain culms and the like while rotating, in which a scraping rod moves in and out of the outer peripheral surface of a cylindrical body.

To assemble the scraping roll, it is necessary to insert the long scraping rod into the recessed hole and pivot the base of the scraping rod to the fixed eccentric shaft. The work is difficult if the rake rod is provided offset to the side.

This invention is constructed as follows for the purpose of ensuring support of the scraping roll and facilitating assembly work. That is, one end side of the cylindrical body 4 in which the retractable holes 1, 1 through which the raking rods 3, 3 are inserted is connected to the eccentric shaft 2 to which the bases 9, 9 of the raking rods 3, 3 are pivoted. The cylindrical body 4 is pivotally supported on a fixed shaft 7, and the other end of the cylindrical body 4 is attached to an extension cylindrical body 5 supported on a drive shaft 18 so as to be separable and fixed near the recessed holes 1, 1.

The present invention has the following technical effects due to the above configuration. That is, the scraping roll 30
Since both ends are supported by the fixed shaft 7 and the drive shaft 18, attachment to the machine frame is ensured. In addition, since the cylinder body 4 and the extension cylinder body 5 can be separated near the recessed holes 1, 1, when the cylinder body 4 and the extension cylinder body 5 are separated, the raking rods 3, 3 can be moved to the eccentric shaft 2. The pivoting work can be performed from the wide opening side of the cylindrical body 4, and the assembly work can be easily performed.

To explain the embodiment with reference to the drawings, the scraping roll 30 is composed of an extension cylinder 5, a cylinder 4, and a flange 6, each of which is integrally formed by providing fitting unevenness on the corresponding end surface so that the center of rotation coincides with the other. It can be easily assembled.

A pair of recessed holes 1, 1 are bored in the outer peripheral surface of the cylindrical body 4 at symmetrical positions with respect to the center of rotation, and openings 25, 26 of appropriate diameters are provided in the left and right side walls 23, 24,
In the cylinder bore, the bases 9 of a pair of scraping rods 3, 3 are pivoted to an eccentric shaft 2 fixed to a fixed shaft 7 with an arm 8, and the tips of the scraping rods 3, 3 are inserted into the recessed hole. 1 and 1 in a slidable manner. The fixed shaft 7 has a flange 19 on its end surface and is fixed to a side wall 20 with bolts 21.
The base 9 of the scraping rod 3 is inserted into the eccentric shaft 2 and the spring 1 is inserted into the eccentric shaft 2.
Push it in the axial direction with 0 and prevent it from coming off with nut 11.
Provide appropriate rotational resistance.

The flange 6 is provided with a bearing 12 at the center of rotation,
The fixed shaft 7 is rotatably supported by the bearing 12, and the flange 6 is integrally fixed to the cylinder 4 with bolts 13. This flange 6 connects the eccentric shaft 2 to the cylindrical body 4.
By removing the bolt 13 while the arm body 8 is inserted into the opening 26, the entire arm body 8 can be moved to a position where it can face the opening 26. Further, the arm body 8 and the eccentric shaft 2 are set in a relationship such that they can be inserted into and removed from the opening 26.

The outer periphery of one side end of the extension cylinder 5 is formed into a recess into which the convex part of the cylinder fits, and is fixed with a bolt 14 inserted integrally with the cylinder 4 through the hole 27. A boss portion 15 having a square fitting hole in the center is provided on the other side of the extension cylinder 5, and a square shaft portion 22 of a drive shaft 18 rotatably pivoted to the side wall 16 by a bearing 17 is fitted into the boss portion 15. Fit into the hole.

By rotating this drive shaft 18, these cylindrical bodies 4,
A scraping roll consisting of a flange 6 and an extension cylinder 5 rotates, and scraping rods 3, 3 whose bases 9, 9 are pivoted on an eccentric shaft 2 fixed to a side wall 20 via a fixed shaft 7 and an arm 8 are rotated. rotates around this eccentric shaft 2 while being pushed by the outer circumferential wall of the cylinder 4, and protrudes and retracts from the outer circumferential surface of the cylinder 4.

By making the free end side of the eccentric shaft 2 of the cylinder 4 openable in this way, the bases 9, 9 of the pair of scraping rods 3, 3 can be inserted into the eccentric shaft 2 through this opening, and the spring can be released. Complicated assembly, such as pressing this base 9 with 10, can be easily performed.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, and FIG. 1 is a front view of the whole in cross section. DESCRIPTION OF SYMBOLS 1... Emerging hole, 2... Eccentric shaft, 3... Scraping rod, 4... Cylindrical body, 5... Extended cylindrical body, 30... Scraping roll.

Claims (1)

[Claims] 1 A fixing device in which one end side of a cylinder 4 having a recessed hole 1, 1 through which the raking rods 3, 3 are inserted is connected to an eccentric shaft 2 to which the bases 9, 9 of the raking rods 3, 3 are pivoted. A grain culm or the like is pivotably supported on a shaft 7, and the other end of this cylinder 4 is attached to an extension cylinder 5 supported on a drive shaft 18 so as to be separable and fixable near the recessed holes 1, 1. Scraping roll.