RU140514U1 - FRAME STRUCTURE FOR ROLLING EQUIPMENT - Google Patents

Abstract

A frame structure for roll equipment, comprising racks with two or more shafts located on them and a loading adjustable means, characterized in that the loading adjustable means is made in the form of axle boxes located in spring-loaded pairs on the axes of the shafts from both ends of the ends; in this case, the springs are connected with axle boxes, the last of which are fixed on the frame; axle boxes are installed with the possibility of horizontal movement and fixation along the axis of the shafts.

Description

The utility model relates to textile machinery, and can be used in roll equipment for the finishing production of the textile and paper industry.

Known calender, including shafts, a double-sided bed having a closed box section, bearings. In a closed frame, the bearings of the middle and upper shafts are located between the guides of the frame. [Eidlin, I.Ya. Paper making and finishing machines: ed. 3rd, fix and add. / Eidlin, I.Ya. - M .: Forest industry, 1970, p. 400, 624.].

A known design of the supports of calender shafts on finishing machines eliminating vibrations and distortions of the front brackets between the shaft pin and the casing of the rear calender shaft, containing a sleeve of rubber and a housing of the front shaft bearings of plastic material. A metal plate is screwed to the upper part of the front shaft from the outside, which receives the load from the spring, which is transmitted through the stop to the lever, on the end of which the spring acts. The bracket at the installation site of the sleeve and the housing has cutouts, the profiles of which correspond to the shape of the parts installed in them. [A.S. 3409947 USA, IPC B65H 54/80. The design of the supports of the calender shafts on the finishing machines / J.R. Whitehurst (USA); declared 06/09/66; publ. 12.11.68.]

A device for pressing the shafts of squeezing machines is known, including a lever with a load, with springs placed between the shaft bearings. The load lever has a movable support rod that moves in the slots of the jaw plates attached to the upper ends of the bed. [A.S. 14207 USSR, IPC 6 D06C 15/08, D21F 3/08. The device for pressing the shafts of squeezing machines / V.I. Kashirin (USSR). - No. 429338; declared 12/13/28; publ. 03/30/30, Bull. Number 24. - 6 s: ill.]

Known squeezing shafts for textile finishing machines, the upper of which is mounted on rotary axle boxes and equipped with a pneumatic type clamp mechanism. The clamping mechanism is made in the form of several boxes, each of which contains a cover, a membrane and a rod. Under them are carts made in the form of two rollers mounted on covers that interact with the corresponding rod and membrane and transmit pressure to the shafts when compressed air is supplied. [A.S. 152232 USSR, IPC 6 D06C 15/08, D21F 3/08. Squeezing shafts for textile finishing machines / V.F. Bystrenin, M.E. Krol (USSR). - No. 762700 / 28-12; declared 02/05/62; publ. 01.01.62, Bull. Number 24. - 3 s: ill.]

The described designs do not ensure the reliability of the rotating organs of the machine in the presence of vibration and their distortions.

The prototype was taken as the bearing assembly of the squeezing shafts of textile finishing machines, comprising housings, support plates for the central shaft and counter-shafts and pneumatic springs mounted on a lever connected to the body of the control-shaft bearing. The support plates are made in one piece, and the pneumatic springs are located on the outside of the support plate and are equipped with regulatory means made in the form of screw fasteners and stops interacting with the springs. [A.S. 456422 USSR, IPC 6 D06C 15/08. Guiding assembly of bearings of squeezing shafts of textile finishing machines / Gunter Ferster, applicant and patent holder of the FEB Vesheraimashinenbau Forst. - No. 1689970 / 28-12; declared 08/04/1971; publ. 01/05/1975.].

The disadvantages of the prototype are the large dynamic loads of the supporting structures, the presence of vibration.

The technical result of the claimed utility model is to reduce the dynamic load on the roll module while improving the reliability of the device.

The specified technical result is achieved by the fact that in the frame structure for roll equipment, comprising racks with two or more shafts located on them and a loading adjustable means, according to a utility model, the loading adjustable means is made in the form of axle boxes located spring-loaded in pairs on the shaft axes from both ends in a checkerboard pattern; in this case, the springs are connected with axle boxes, the last of which are fixed on the frame; axle boxes are installed with the possibility of horizontal movement and fixation along the axis of the shafts.

The technical result, which consists in reducing the dynamic loads on the roll module while improving the reliability of the device is achieved for the following reasons:

- deformation of the frame structure under compressive load consists of compression of the protrusions of the supports with springs, bending and shifting the gaps between them, which weakens the dynamic effect on the roller module;

- the implementation of the loading adjustable means with springs allows you to ensure the minimum distance of the shafts from each other, reducing their misalignment, radial runout and, as a result, wear of bearing bearings, which increases the reliability of the device;

- horizontal vibrations are damped due to the special and spring-loaded arrangement of supporting axleboxes, which gives them a certain degree of freedom of oscillations in the horizontal plane.

The inventive utility model is shown in the attached drawing.

The frame structure contains racks 1, the shafts located on them 2. The adjustable load means is made in the form of axle boxes 3, spring-loaded in pairs on the axes of the shafts 2 from both of its ends in a checkerboard pattern, the springs 4 are connected to the axle boxes 3, the last of which are mounted on the frame structure 5. The axle boxes 3 are mounted with the possibility of horizontal movement and fixation along the axis of the shafts 2.

The design works as follows. When the machine is installed, the shafts 2 installed in the racks 1 transmit vibrations to the frame structure 5. The supporting axles 3 arranged in pairs on the axes of the shafts absorb the load from the springs 4, thereby weakening the dynamic effect on the roller module. Horizontal vibrations are damped due to the unrestricted location of the bearing axles 3 with springs 4, which gives them a certain degree of freedom of oscillations in the horizontal plane. The reduction of dynamic loads is also provided due to shock absorption due to elastic springs 4, the characteristics of which are selected based on the level of dynamic loads on the frame structure 5.

Claims (1)

A frame structure for roll equipment, comprising racks with two or more shafts located on them and a loading adjustable means, characterized in that the loading adjustable means is made in the form of axle boxes located in spring-loaded pairs on the axes of the shafts from both ends of the ends; in this case, the springs are connected with axle boxes, the last of which are fixed on the frame; axle boxes are installed with the possibility of horizontal movement and fixation along the axis of the shafts.

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