UA17670U - Strainer of conveyer belt - Google Patents

Abstract

A strainer of conveyer belt contains a drum, each end of axle of which is located in the guides of slider and is interconnected with a tightening screw, and a slider and a housing of slack adjuster are mounted on the frame with the help of the bolt connections. It is equipped with a pair of actuating cylinders and each cylinder is mounted in parallel and from the outer side of corresponding tightening screw with possibility of interaction of stock with the end of the axle of drum. In this case, on the stock is mounted a rotary detachable support with possibility of interaction with the slider, and the openings for the bolting of slider and housing of tightening screw are located on the frame with identical step, and the distance between the outer openings corresponds to the sum of the value of maximum permissible tension displacement of drum and distance between the opening of slider and external opening of the housing of tightening screw.

Description

Description of the invention

The useful model belongs to the conveyor transport, namely, to the tensioning devices of belt conveyors, and 2 can be used in conveyors of high productivity, in particular on the feeders of mining machines.

The conveyor tensioning device, which contains a drum, is taken as the prototype. Drum supports are placed in guides. The guides are mounted on the frame. The ends of the supports are interconnected with the ends of a pair of tension screws.

The opposite ends of the tension screws are interconnected with sliders. To tighten the traction body of the conveyor on the frame with the help of pins inserted into the holes of the guides, sliders are fixed (a.s. of the USSR Mo308940, class 70 Vv5023/44, 1971.

The disadvantage of the prototype is the large metal capacity of the device due to the need to increase the length of the guides when increasing the stroke of the tensioner. In addition, when using a known tensioning device on conveyors of high productivity, especially on feeders of mining ore machines, due to large inertial masses during the start-up of conveyors under a pile, breakages of the tensioning screw occur, as a result of which the tension of the traction 72 organ is disturbed, and this in turn leads to conveyor drive failure. In addition, in order to carry out the tensioning stroke of a heavily loaded drum, it is necessary to apply a significant force to the tensioning screw.

The useful model is based on the task of improving the reliability of the tensioning device and mechanizing its maintenance by changing the design of the guides, the frame, introducing new elements, and changing the relationship between these elements.

To solve the problem, a conveyor belt tensioning device, which contains a drum, each end of the axis of which is placed in the guides of the slider and is interconnected with a tensioning screw, and the slider and the body of the tensioning screw are installed on the frame with the help of bolted connections, according to the proposed technical solution , is equipped with a pair of power cylinders and each cylinder is installed parallel to and outside of the corresponding tension screw with the possibility of interaction of the rod with the end of the drum axis, while on the rod, with the possibility of interaction with the slider, a rotary removable stop is installed, and the holes for the bolting of the slider and the housing p - of the tension screw are located on the frame with the same step, and the distance between the extreme holes corresponds to the sum of the maximum permissible tension displacement of the drum and the distance between the outer hole of the slider and the outer hole of the body of the tension screw.

The essence of the useful model is explained by the drawings, where Fig. 1 shows the general view of the tensioning device of the conveyor belt, and Fig. 2 shows view A of Fig. 1.

The tensioning device of the conveyor belt contains a drum 1. Each end of the axis 2 of the drum 1 is placed in the guide groove Z of the slider 4. The slider 4 is installed on the frame 5. The housings 6 are installed on the frame 5. The tension screw 7 and the power cylinder 8 are installed on the housing Mk. rod 9, Rod 9 has a small stroke. Tension screw 7 and 39 power cylinder 8 are installed in parallel. --

On the frame 5, holes 10 are made for bolted connections 11 for fastening the slider 4 and housings 6. The holes 10 are made with the same pitch. The distance I between the extreme holes 10 is equal to the sum of the values, namely, the value of the maximum permissible displacement "B" of the drum 1 and the distance "I" between the outer hole of the slider 4 and the outer hole of the housing 6 of the tension screw 7. With 50 On the rod 9, a rotary removable stop 12. c The device works as follows.

From" Slider 4 and housing 6 are in the extreme right position. Drum 1 is also in the far right position. Tape tensioning is carried out by moving the drum 1 to the left due to the action of the rods 9 on the axis 2 when the power cylinders 8 are activated. The fact that the main effort to move the drum 1 is perceived by the rods 9 is especially important for heavily loaded conveyors. Then the tensioning screws 7 are brought to axes 2 and the position of these screws is fixed. When the axis 2 reaches the Z extreme left-I position in the guide grooves, the stops 12 on the rods 9 are rotated to the contact of the stops 12 with the sliders 4. The bolted connections 11 that fasten the slider 4 to the frame 5 are removed. The power cylinders 8 and stops 12, b installed on rods 9, move the sliders 4 to the left along the Z guides until they reach the right side wall - and 20 guide Z axes. After that, the position of the sliders 4 is fixed with bolted connections 11. The power cylinders 8 are activated in reverse, the rods 9 move to the right, the stops 12 are removed from the rods 9U. The tensioning screws 7 are also returned to the right starting position. At the same time, the fixation of the drum 1 takes place through the abutment of the axes 2 in the right side wall of the guides 3. The bolted connections 11 that fasten the housing b to the frame 5 are removed. The housings b with the power cylinders 8 and 22 tension screws 7 installed on them are moved along the frame 5 to the left to the contact of the rods 9 with the axes 2. Then the fastening of the housings 6 with bolted connections 11 is carried out through the holes 10 on the frame 5. At the same time, the location of the holes 10 for the bolted connections of the slider 4 and the housings b with the same pitch increases the manufacturability of both the production of the conveyor belt tensioning device and its maintenance. Movement of sliders 4 and housings 6 is carried out as necessary to reach the outer bolt connection 11 of the leftmost hole 10 on the frame 5. 60 The use of a conveyor belt tensioning device ensures reliability, manufacturability, and compactness of the design.

Claims (1)

The formula of the invention b5 Conveyor belt tensioning device containing a drum, each end of the axle of which is placed in the slider guides and interconnected with a tension screw, and the slider and the body of the tension screw are mounted on a frame by means of bolted connections, which is characterized by the fact that it is provided with a pair of power of cylinders and each cylinder is installed parallel to and outside of the corresponding tension screw with the possibility of interaction of the rod with the end of the drum axis, while on the rod there is a rotary removable stop with the possibility of interaction with the slider, and the holes for bolting the slider and the bodies of the tension screw are located on the frame with the same step, and the distance between the extreme holes corresponds to the sum of the maximum permissible tension displacement of the drum and the distance between the slider hole and the outer hole of the tension screw housing. what with (av) in (Se) in "- - a - - and (e)) - and "2 because b5