SU1340832A1 - Arrangement for cleaning a curvilinear surface - Google Patents

Abstract

The invention relates to the tire industry for cleaning the curved surface of tire tires and improves the quality, reliability and durability of the device. The invention includes a washing chamber, drive and non-driving horizontal support rollers installed therein, side cylindrical brushes with drives for their rotation and movement to the processed tire, a bottom cylindrical brush with a drive and mounted nozzles for feeding the dispenser to the dispenser chamber. The axis of the lower brush is set at an angle to the axis of rotation of the tire on cranks of the same length, installed in supports and turned in opposite directions. The shaft of the lower brush is connected with the cranks pivotally with the possibility of its rotation relative to the cranks around its own axis of symmetry. At opposite ends of the axis, bevel gears are fixed, mounted with the possibility of their fixation and running in other bevel gears in hollow axles. which mentioned cranks are installed. 4 il. (L CO 4 oo

Description

The invention relates to equipment for washing pokryashek pneumatic tires during their refurbishment and can be used on tire-repair enterprises.

The aim of the invention is to improve the quality, reliability and durability of the cleaning tool.

FIG. 1 shows a diagram of a device for cleaning a curved surface in one of the versions of the drive of the lower brush; FIGS. 2 and 3 are other versions of the drive of the lower brush J in FIG. 4 shows the position of the bottom brush in 0.5 turns in relation to the position shown in FIG. 1-3.

A device for washing pokes of pneumatic tires contains a washing chamber 1 in which two side 2 and one bottom 3 cylindrical brushes are placed. The side brushes 2 are mounted on the frame 4 with the possibility of their rotation from the drive 5 and rotation together with the frame 4 relative to the axis 6 towards and from the side surfaces of the tire 7 (frame drive not shown). Circumference 7 is mounted on two support rollers 8 with the possibility of its rotation from one of them, kinematically connected with the drive 9.

The shaft 10 of the lower brush 3 is set at an angle to the axis of rotation 11 of the lid 7 on the cranks 12 of the same length installed in the bearings 13 and turned in antiphase. The angle is equal to the angle of inclination of the axis of the bottom brush to the axis of rotation 14 of the cranks in the supports 13 ( axis 11 parallel to axis 14). The angle o / is assumed to be o / 10-15 ° (depending on the size of the tire being processed).

The shaft 10 is connected to the cranks 12 by means of the hinges 15 with the possibility of rotation in these hinges relative to the cranks around its own axis of symmetry 16.

 At opposite ends of the shaft 10 of the lower brush 3, bevel gears 17 and 18 with the number of teeth Z, and Z, respectively, are fixed with the possibility of meshing with bevel gears 19 and 20 (Z and Zj) and about & rollers over them. In the hollow axles 21 and 22 of the bevel gears 19 and 20, the cranks 12 are mounted with the possibility of their rotation.

Thus, the drive of the lower brush comprises an electric motor 23, kinematically associated with cranks.

12, which are connected to the shaft 10 of the lower brush 3 by means of hinges 15 and bevel gears 7.-b (gears 19 and 17) HZ -Z (gears 18-20).

At the bottom of the washing chamber, a pipe 24 is installed with nozzles 25 for supplying a washing agent to the tire.

The drive of the bottom brush can be presented in the following versions.

Execution 1 (Fig. 1). All gears are mounted with the possibility of their rotation, and gear 20 (Zj) is connected by a kinematic chain 26 with its own motor 27. In this kinematic chain can be introduced

means 28 for controlling the speed of rotation of gear 20, e.g., a gearbox, a variator, and the like. In the kinematic chain 29, linking

motor 23 with cranks 12, means 30 may be introduced to control the speed of rotation of the cranks.

Marked: n - rotational speed

cranks 12 in the supports 13; n is the frequency of rotation of gear 19 with the number of teeth 2; the frequency of rotation of shaft 10 with gears 17 and 18 (Z and Zj) around its own axis of symmetry;

n is the frequency of rotation of gear 20 with the number of teeth Z. .

The frequency of rotation n can be determined by the method known from the course of the theory of mechanisms and machines:

p, C, p + p, p (1, i), p - Zz Z3

3-zTzr

In addition, i П, | - (5)

(3) (4)

Zi and, n, g Then, substituting the expression (5) in the formula (3), we get

nj Cp, 4- P, "(1-UJ

-yy, 15 i

kp li-

Using formulas (4) and

77

2 Z V

From the formula (7) it can be seen that the frequency of rotation of the shaft 10 of the lower brush 3 around its own axis of symmetry 16

depends on the frequency of rotation of the pinion gear 20 and the frequency of rotation of the cranks. Being set by constant values of Z, Z, Z and Zj, it is possible, by changing the value of n and n by means of adjusting the rotational speeds 28 and 30, by changing the value of n within wide limits and, therefore, by the ratio

Sense --- PKR

Let, for example, L

Zi za

7 2

2. Speed control 28 and 30 set the frequency of rotation of n 150 rpm and 50 rpm. Then in accordance with formula (7) p

 300 rpm and

P

6

Cr

Execution 2 (fig, 2). 20 fixed still Then in accordance with

loi

and (7)

 P

kp

Zi

/ Zi 2z.

yyyy

B.

-Zi

(eight)

P2

relation - - the value of the constant NCPR

B Z.

Zs

“G;

Let, for example, 4

P2

then 3.75.

Execution 3 (fig. 3). The gears 19 (Z,) and 20 (Zj) are fixedly mounted, i.e. n Uj 0. In this case, in accordance with formulas (3) and

14

(four)

we have o p

(one -

K.f Here p.p 0;

one

 2g Z

 ABOUT,

from where

5i.5l

one

Zi z

what is possible in the event that veZi Z3 masks - and -, - are opposite to each other

  2 7.5 1 Z Let, for example, - j and -

12

 4. This means that for 1 revolution of cranks gear 17 (Zj) and 18 (Z) when running gears 19 (Z) and 20 (Zj) make four turns together with shaft 10 of the lower brush 3. So

way, the ratio is 4.

cr

bob 10

ed

15

20

n

y

and w

1340832

The device for washing tires pneumatic tires works as follows.

From a loading device (not shown), the tire 7 is fed to the washing chamber 1 on the support rollers 8. One of them (wedgtions), connected with the actuator 9, informs the rotation of the roller. The distance between the rollers is adjusted depending on the size of the tire using a special steering wheel (not shown). The side brushes 2 are pressed against the side surfaces of the pockets 1 by rotating the frame 4 about the axis 6. The rotational drives 5 and 23, respectively, are included.

2 and bottom 3 brushes. In the case of performing the drive of the lower brush, according to version 1, the rotational rotational drive actuator 27 is also included. During rotation of the cranks 12 from the actuator 23, bevel gears 17 and 18 roll over the kinematic chain 26

25 bevel gears 19 and 20 respectively. At the same time, the brush 3 with the shaft 10 makes a rotational movement together with the cranks and, moreover, rotates in the hinges 15 relative to the 30 but the cranks 12 around its own axis of symmetry 16.

When vrachtsenii shaft 10 with a brush

3, together with the cranks 12, the axis of the brush shaft 10, mounted at an angle

10-15 to the axis of rotation 12 of the tire 7, forms a conical surface. In this case, the angle of inclination of the axis of the shaft 10 to the axis 11 remains unchanged, but its angle of inclination to the horizontal (as well as to the vertical) plane changes. The angle of its inclination to these planes changes at each time point in magnitude and every 0.5 turns in the direction (Fig. 4), and every 0.25 turns in relation to the indicated extreme positions the longitudinal axis of the shaft 10 of the lower brush 3 is installed in the horizontal (or vertical) plane. The maximum angle of inclination of the axis of the shaft 10 of the brush 3 to the horizontal (vertical) plane corresponds to its zero value with respect to the vertical (horizontal) plane.

5g Thus, during the processing of the tire, the brush 3 simultaneously performs oscillating movements as in a vertical plane relative to the center line of the treadmill.

35

45

50

and in the horizontal plane relative to the radial plane of the tire.

During washing, tires include a pump drive (not shown), a forcing detergent agent (for example, water) through pipe 24 to Lossunki 25.

Due to the fact that the bottom n; the yoke performs a complex movement, summed from its rotation along with the cranks and From the rotational movement relative to the cranks around its own axis of symmetry, it is possible to increase the speed of rotation of the brush around the axis of symmetry, which increases the washing efficiency , reduce the speed of rotation of the cranks and thereby reduce the dynamic loads on their supports, and, ultimately, increase the reliability and durability of the device as a whole. The introduction of means for controlling the speeds of rotation of the kinematic links in the chain of bringing the lower brush allows a wide variation in the frequency ratio

rotation of the bottom brush around its own axis of symmetry and its rotation along with the cranks, and thereby expand the technological capabilities of the device.

Claims (1)

Invention Formula A device for cleaning a curved surface containing supporting rollers for rotating the product to be cleaned, a cylindrical cleaning tool whose supports are made in the form of cranks connected to the supporting ends of the drive, while others are out of phase with the ends of the shaft of the cleaning tool, so that increase the quality of reliability and durability, the shaft of the cleaning tool is connected with the cranks by means of hinges and mounted rotatably around its axis, while the shaft of the cleaning tool is Twomey bevel gear associated with supporting ends of each crank. 2J17 js  W 30 13 28 23 FIG. 2 nineteen fie, J YU 76 / / " Editor N.Gorvat FIG. Compiled by A. Fomichev Tehred A. Kravchuk Proofreader A.T. Order 4379/12 Circulation 540 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4