KR100320068B1 - Oil pressure type suspension scraper - Google Patents

Abstract

The present invention is to reduce the height of the multi-stage boom to work in the room, the boom shake is prevented to work precisely and quickly, the multi-stage hydraulic automatic vibration suppressor to prevent the accumulation of scraped foreign material on the top of the screen It is about.

According to the present invention, in the automatic vibration damper provided with a multi-stage boom 20, which is hinged to the main body 10 and rotates up and down, is connected to the outer first boom 21a and the second boom 21b The main cylinder 22 which expands and contracts the 1st boom 21a and the 2nd boom 21b, and the roller provided in the front-end | tip of each boom 21b-21d from the said 2nd boom 21b to the 2nd inner side, A plurality of extension wires 27 for connecting the base end of the boom stand in contact with each boom stand 21b to 21d and the tip of the boom stand, and each boom stand 21b to 21d from the second boom 21b to the inner side of the second boom; A plurality of contraction wires 25 connected to the base end of the boom stand and the end of the boom stand in the circumference of the boom base 21b to 21d, which are installed on the base end of the boom 21a to 21e, Multi-stage characterized in that it comprises a guide member 29 for fitting so that the boom (21a ~ 21e) does not shake Hydraulic autovibrators are provided.

Description

Multi-stage hydraulic automatic vibration damper {Oil pressure type suspension scraper}

The present invention relates to a multi-stage hydraulic automatic vibration suppressor, and more particularly, it is possible to work in the room by reducing the height of the multi-stage boom, the shaking of the boom is prevented and made precisely and quickly, the scraped foreign material on the top of the screen The present invention relates to a multi-stage hydraulic automatic vibrator capable of preventing stacking.

In general, a multi-stage hydraulic vibration damper is a device for scraping up suspended matters on the screens installed in drainage paths of sewage treatment plants, drainage pumping stations, intake stations, small hydro power plants, industrial sewage treatment plants, etc. As it is transported along, it is divided into a mobile vibration suppressor that removes foreign substances caught on a plurality of screens.

Figure 1 is a side cross-sectional view showing an example of a conventional multi-stage hydraulic automatic vibration suppressor, the main body 10, the rake (70) to be scraped of the foreign material is hinged to the main body 10 and the front end is caught on the screen (90) ) Is provided with a multi-stage boom 50, a rotating cylinder 40 installed on the main body 10 to rotate the multi-stage boom 50 at a predetermined angle, and hinged to the multi-stage boom 50, the rake 70 It is composed of a wiper 75 for pushing the foreign matter accumulated on the conveyor belt (95). At this time, the multi-stage boom 50 is the first boom 51 hinged to the main body 10, and the second boom 52 and the third boom 53, which are sequentially inserted into the first boom 51 It is connected to the drive means consisting of the main cylinder 60 and the wire 65 is elongated by its own weight and contracted by the drive means.

Therefore, in order to remove the foreign matter caught on the screen by using the above-mentioned vibration damper, the rotary cylinder 40 is contracted to extend the multi-stage boom 50 in a state where the front end of the multi-stage boom 50 is rotated upward. (50) When the rake 70 at the front end is transported to the front end of the screen 90 and then the rotation cylinder 40 is extended, the rake 70 is in close contact with the screen 90.

Subsequently, when the multi-stage boom 50 is contracted, foreign matters caught on the screen 90 are scraped up by the rake 70. At this time, the rake 70 is provided with a foot 71 in a direction perpendicular to the tip portion, the upper surface 71a of the foot is inclined downward toward the tip side, the wiper hinged to the multi-stage boom 50 ( Since 75 is downward due to its own weight, when the multistage boom 50 is contracted to a predetermined length, the tip of the wiper 75 is positioned at the base of the upper surface 71a of the rake, and the multistage boom 50 is further contracted. The wiper 75 slides along the inclined surface of the rake 70 to push foreign matter accumulated on the upper surface 71a of the rake 70 onto the conveyor belt 95.

However, the above-described vibration suppressor is operated by the force of the main cylinder 60 only when the multi-stage boom 50 is contracted, and is lowered by its own weight when it is extended, so that the vibration damper applied to each boom 51 to 53 is reduced. The booms 51-53 are loosely combined. Therefore, the multi-stage boom 50 has a problem that it is difficult to move the rake 70 of the tip to the correct position because the shake occurs during the stretching operation, and acts on the rake 70 when the rake 70 is in the water There is a problem that the elongation speed is rapidly lowered by the resistance of the water. Moreover, the resistance of the water acting on the rake 70 acts in a direction in which the frictional force increases between the respective booms 51 to 53, so that the multistage boom 50 is severe. There is a serious problem that is stopped without stretching.

In addition, the above-described multi-stage boom 50 is difficult to configure in three or more stages because of the friction force between each boom 51-53, and because the height must be extended to the tip of the screen 90, the height is increased to the indoor sewage treatment plant There is a problem that is difficult to install, drainage pumping station, intake station. The above-described rake 70 is operated at right angles to the rear inclined screen 90 at an angle of about 75 ° to the ground, so that foreign matter is pushed toward the screen 90 and scraped up to be piled up on the top of the screen 90 or the screen 90 ) There is a problem of falling back and polluting the surrounding environment. In addition, since the mobile vibration damper has an inertial mass of several hundred kilograms, there is a problem that it is difficult to stop at the correct position by the inertial force.

The present invention is to solve the above problems, an object of the present invention is to precisely fit the multi-stage boom so as not to flow back and forth, left and right, and to contract and expand by the force of the hydraulic cylinder even after the rake is incident in water It is to provide a multi-stage hydraulic automatic vibrator which can be precisely controlled so that the work can be performed relatively quickly and the rake is transferred to the correct position.

Figure 1 is a side cross-sectional view showing an example of a conventional multi-stage hydraulic automatic vibration suppressor

Figure 2 is a side cross-sectional view of a multi-stage hydraulic automatic vibration suppressor according to the present invention.

3 is a front view of the multi-stage hydraulic automatic vibration suppressor according to the present invention.

Figure 4 is a cross-sectional view showing a state in which the multi-stage boom is contracted constituting the present invention

Figure 5 is a cross-sectional view showing a state in which the multi-stage boom is constituting the present invention

6 is a conceptual view of the rake rotation means constituting the present invention;

<Description of the symbols for the main parts of the drawings>

10: main body 20: multi-stage boom

22: main cylinder 25: shrink wire

27: extension wire 29: guide member

30: rake 35: rake rotation cylinder

37: wire 40: rotating cylinder

According to the present invention, in the automatic vibration damper provided with a multi-stage boom 20, which is hinged to the main body 10 and rotates up and down, is connected between the outer first boom 21a and the second boom 21b. The main cylinder 22 which allows the second boom 21b to be stretched and contracted with respect to the first boom 21a, and the rollers provided at the front end portions of the respective booms 21b to 21d from the second boom 21b to the inner second. A plurality of extension wires 27 connecting the base end of the boom stand which is caught and inscribed to each boom stand 21b to 21d and the tip of the boom stand, and each boom stand 21b to the inner side from the second boom 21b. A plurality of contraction wires 25 connected to the bases of the booms inscribed on the base end portions of the 21d) and connecting the ends of the booms inscribed to the booms 21b to 21d and the respective ends of the booms 21a to 21e. It is installed to include a guide member 29 to prevent each boom (21a ~ 21e) is not shaken, the extension and the number of multi-stage boom Are all provided with a multi-stage hydraulic automatic jejingi, it characterized in that the to occur by the force of the main cylinder (22).

According to another feature, the multi-stage boom 20 which is conveyed up and down by the main cylinder 22 is hinged to the main body 10 to remove the foreign matter caught on the screen 90, the multi-stage boom ( The rake 30 is hinged to the distal end of 20 so that its upper surface 31 is positioned horizontally on the screen 90 and the rake pivot is fixed to the distal end of the multistage boom 20 connected to the rake 30. It is configured to include a cylinder 35 and a hose 37 connected to the hydraulic tank inside the main body 10 to supply the hydraulic oil to the rake rotation cylinder 35 to be stacked by rotating the tip of the rake 30 downward. Provided is a multi-stage hydraulic automatic vibrator, characterized in that foreign matter falls on the vehicle.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

2 and 3 are cross-sectional views of the multi-stage hydraulic automatic vibration suppressor according to the present invention, the main body 10, the rake 30 is hinged to the main body 10, the end of the rake (30) to scrape up the foreign matter caught on the screen 90 Is hinged to the multi-stage boom 20, the rotating cylinder 40 is installed on the main body 10 to rotate the multi-stage boom 20 at a predetermined angle, and fixed to the front end of the multi-stage boom 20 and the rake ( 30 is connected to the hydraulic tank built in the main body 10 by a hose 37 is made of a rake rotation cylinder 35 for rotating the rake 30 downward.

4 and 5, the multi-stage boom 20 is composed of four or more stages, the main cylinder 22 is connected between the outer second boom 21b and the first boom 21a. From the second boom 21b to the inner second boom 21d, a pair of rollers 26 are installed at each of the ends of each boom 21b to 21d to connect the base of the inboard boom to the outside of the boom. The extension wire 27 is caught, and a pair of rollers 24 are provided at the base end of each boom stand 21b to 21d from the second boom stand 21b to the inner second boom stand 21d, respectively. Shrink wire 25 is connected to connect the tip of the circumference and the circumference of the boom. One end of each of the wires 25 and 27 is provided with a threaded tension adjusting device 28 to adjust the tension acting on the pair of wires installed side by side.

In addition, each boom (21a ~ 21e) is provided with a guide member 29 located between the boom and the boom to prevent shaking of each boom (21a ~ 21e), a space through which each wire (25, 27) can pass Secured. For reference, if the main cylinder 22 is applied as a two-stage cylinder, the height of the multistage boom 20 can be lowered by further increasing the number of stages of the multistage boom 20.

Meanwhile, although not shown in the drawings, the mobile vibration damper is provided with a slow start and a slow stop control device in the controller so that the main body 10 of FIG. 2 may be slowly started and slowly stopped when transported along the rail 11. In addition, the main body 10 is provided with a stopper 14 which is stretched in the horizontal direction by the hydraulic cylinder 13, the holder hole 15 in the position corresponding to each screen 90 on the side of the rail (11) It is provided to prevent the body 10 from flowing during the operation.

The rake 30 is connected to the rod of the rake rotation cylinder 35 fixed to the tip of the multi-stage boom 20 in a hinged state to the front end of the multi-stage boom 20, as shown in Figure 6 rotated at a predetermined angle do. The rake rotation cylinder 35 is connected to the hydraulic tank in the main body 10 by a hose 37 of a predetermined length to receive the pressure oil. At this time, the hose 37 is wound on the hose reel 38 is installed on the main body 10, the dressing process, the hose reel 38 has a torsion spring is built so as not to pull the hose 37 with a constant elastic force to stretch. do.

Therefore, in order to remove the foreign matter caught on the screen 90 using the vibration damper, as shown in FIG. 2, the rotary cylinder 40 is contracted so that the front end of the multistage boom 20 is rotated upward. When the boom 20 is extended so that the rake 30 at the front end of the multi-stage boom 20 is transferred to the front end of the screen 90 and the rotating cylinder 40 is extended, the rake 30 is in close contact with the screen. do.

Subsequently, the multi-stage boom 20 is contracted to scrape up the foreign matter caught on the screen 90, and the rotation cylinder 40 is further extended to allow the rake 30 to be positioned on the conveyor belt 95, and then the rake. By extending the rotation cylinder 35 so that the front end of the connected rake 30 is rotated downward, the foreign matter accumulated in the rake 30 falls on the conveyor belt (95).

Looking at the state in which the multi-stage boom 20 is stretched in this process, as shown in Figure 4, when the main cylinder 22 is extended to unfold the second boom 21b, rollers at the tip of the second boom 21b The extension wire 27 caught on the 26 extends the third boom 21c, and the extension wire 27 caught on the roller 26 at the tip of the third boom 21c is the fourth boom 21d. The rake 30 of the front end of the multistage boom 20 is conveyed to the front end of the screen through a process such as stretching.

On the contrary, when the multi-stage boom 20 is contracted, as shown in FIG. 5, when the main cylinder 22 is contracted to contract the second boom 21b, the roller 24 at the proximal end of the second boom 21b is contracted. ) Contraction wire 25 contracts the third boom 21c, while the wire 25 caught on the roller 24 of the base end of the third boom 21c contracts the fourth boom 21d. As the rake 30 of the front end of the multistage boom 20 is transferred to the upper portion of the screen, the foreign material caught on the screen is scraped up.

In addition, a pair of brackets 81 and 82 fixed in a direction opposite to each other is provided at the front end and the rear end of the first boom 21a, and the pair of brackets 81 and 82 are provided with a multi-stage boom ( Parallel to 20) the first and second guide bars (83, 84) are fixed in parallel. A through hole 81a is provided in the center of the bracket 81 at the tip portion, and the extension bar 85 in the direction parallel to the guide bars 83 and 84 is fitted to slide. At this time, the tip of the extension bar 85 is fixed to the bracket 89 installed on the tip of the second boom 21b, the fastener 88 coupled to the first guide bar 83 is fixed to the rear end thereof. The fixture 88 is provided with a proximity switch or a limit switch. The second guide bar 84 has a pair of proximity switches 86 and 87 operated by a proximity switch or a limit switch installed in the fixture 88 when the multi-stage boom 20 is fully extended and fully retracted. Is fitted and fixed with screws. Therefore, when adjusting the position of the proximity switch (86,87) installed in the second guide bar 84, the stretch distance of the multi-stage boom 20 is easily adjusted.

As described above, the hydraulic automatic vibration suppressor can be precisely controlled since the respective booms 21a to 21e are relatively precisely fitted and are prevented from flowing in a direction perpendicular to the conveying direction. In addition, since the multi-stage boom 20 is operated by the force of the main cylinder 22 not only when it is contracted but also when it is extended, it works relatively quickly even when the rake 30 at its tip is incident in water and receives water resistance. It can be easily installed in the room by lowering its height by configuring a multi-stage of four or more stages because it is less restricted by the frictional force acting between each boom (21a ~ 21e).

In addition, the mobile automatic vibration suppressor is provided with a slow stop and a slow start driving means in the controller of the main body 10 so that the main body 10 starts and stops smoothly along the rail 11 so that a relatively accurate position is possible even if the inertial mass is large. Can be stopped. In addition, the main body 10 is provided with a stopper 14 fitted into the holder hole 15 of the rail 11 to prevent the vibration damper from flowing during operation.

According to the present invention as described above, since the multi-stage hydraulic automatic vibration suppressor is all made by the force of the hydraulic cylinder 22, the expansion operation of the multi-stage boom 20, the rake 30 of the front end of the multi-stage boom 20 is in water Work is made relatively quickly even after being entered, and since the multi-stage boom 20 is relatively less subject to frictional constraints, its height can be increased by lowering the number of stages, thereby making it easy to install indoors. In addition, the booms 21a to 21e are relatively precisely fitted and do not flow in a direction perpendicular to the stretch direction, so that the booms 21a to 21e can be relatively precisely controlled. The mobile vibration damper is provided with a slow start and a slow stop control, which can be transported along the rail 11 and stopped exactly at a desired position.

Claims (2)

In the automatic vibration damper is provided with a multi-stage boom 20, which is hinged to the main body 10 is rotated up and down and is stretched, A main cylinder 22 connected between the outer first boom 21a and the second boom 21b to allow the second boom 21b to expand and contract with respect to the first boom 21a, and the second boom 21b. A plurality of extension wires (27) connected to the end of each boom stand (21b to 21d) from the inner side to the second end to connect the base end of the boom stand and the outside end of the boom stand (21b to 21d); And hooked on the rollers provided at the proximal ends of the respective booms 21b to 21d from the second boom 21b to the inner second to connect the proximal ends of the booms inscribed to the respective booms 21b to 21d and the outer ends of the booms. A plurality of contraction wire 25 and the guide member 29 is installed on each of the boom (21a ~ 21e) to prevent each boom (21a ~ 21e) is shaken, so that the expansion and contraction of the multi-stage boom Multi-stage hydraulic automatic vibration suppressor, characterized in that made by the force of the cylinder (22). The multi-stage boom 20 which is conveyed up and down by the main cylinder 22 is hinged to the main body 10 to remove the foreign matter caught on the screen 90. In the tip of the multi-stage boom 20, The rake 30 is hinged and the upper surface 31 is positioned in the horizontal direction on the screen 90, and the rake rotation cylinder 35 is fixed to the front end of the multi-stage boom 20 and connected to the rake 30 Is connected to the hydraulic tank inside the main body 10, the hose 37 for supplying the pressure oil to the rake rotation cylinder 35 is configured to include the foreign matter accumulated by the downward rotation of the tip of the rake 30 to the transport means Multi-stage hydraulic automatic vibrator characterized in that the drop.