CN219035185U - Built-in hollow oil cylinder with blanking opening for clearing blockage and blockage clearing device - Google Patents

Abstract

The utility model discloses a built-in hollow oil cylinder and a blockage removing device for removing blockage of a blanking opening, which comprise a cylinder body, a piston rod, a piston and a breather pipe, wherein the hollow oil cylinder provides a blowing structure for high-pressure air circulation to clean powder around the piston rod, so that the flow of cement is accelerated, and the problem of wall built-up accumulation in the blanking process of a cement warehouse is solved. The oil cylinder has compact structure, can be suitable for an operation environment with limited installation space, and has wider application range.

Description

Built-in hollow oil cylinder with blanking opening for clearing blockage and blockage clearing device

Technical Field

The utility model relates to the field of cement production equipment, in particular to a hollow oil cylinder with a blanking opening for clearing blockage and a blockage clearing device.

Background

Cement belongs to powdery materials with high water absorbability, and can be delivered after passing a certain storage period, so that a cement factory needs to set a cement warehouse with a certain capacity. Because the cement materials have certain viscosity, in the process of clearing and dredging the cement warehouse, the cement needs to flow as soon as possible, and the blocking accumulation is avoided.

In order to reduce wall built-up accumulation of the discharging opening, blowing of dry high-pressure air is needed in the flowing process of cement, and the accumulated cement can be loosened and dropped by the high-pressure air, so that the flowing of the cement is quickened, and meanwhile, an effective channel for discharging of a cement warehouse is enlarged. Therefore, the high-pressure air is introduced into the bottom of the cement silo, which is a problem to be solved in the dredging process.

Disclosure of Invention

The utility model aims to provide a built-in hollow oil cylinder with a blanking opening for clearing blockage, which is used for introducing high-pressure air to the bottom of a cement silo, solving the problem of wall built-up accumulation in the blanking process of the cement silo, and has the advantages of compact structure, capability of being used when the installation space is limited and wide application range.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a clear stifled built-in hollow cylinder of feed opening, includes a cylinder body, a piston rod and a piston, still includes a breather pipe, the cylinder body has a jar mouth, a lateral wall, a liquid holding space and a cylinder bottom, the piston connect in piston rod one end, the piston slide in the cylinder body, be equipped with an axial through-hole in the piston rod, the breather pipe passes the cylinder bottom stretches into in the through-hole to keep sliding communication, the breather pipe with set up sliding seal structure between the axial through-hole.

Further, the side wall of the cylinder body is provided with a proximity switch, and the proximity switch comprises an upper limit proximity switch and a lower limit proximity switch. The proximity switch is utilized to facilitate remote control or automatic control.

Further, an induction ring is arranged on the piston, the induction ring can be used as an induction component of the piston in operation, in the reciprocating motion, the induction ring senses the automatic reversing operation of the piston after the upper limit switch, the piston automatically ascends after the lower limit switch is sensed, and the induction ring, the upper limit proximity switch and the lower limit proximity switch jointly form automatic control.

The blockage removing device for blockage removing of the blanking port comprises a hollow oil cylinder and a conical head arranged at the other end of the piston rod, wherein small holes are formed in the conical head and are communicated with the through holes. The cone head is favorable for propping the lump materials against the crushing device, and the crushing and cleaning efficiency is improved.

Further, a small cover plate can be arranged on the small hole, and the small cover plate has two states of opening and closing. The small cover plate is opened under the impact of high-pressure air, the high-pressure air is released, and when the high-pressure air disappears, the small cover plate covers the small holes, so that the air can be saved, and meanwhile, the powder materials are prevented from falling into the small holes to cause the blockage of the small holes, the through holes and the vent pipes.

Further, the cone head and the piston rod are of an integrated structure.

Further, the breather pipe is connected with the oil-water separator. The oil-water separator is favorable for providing dry gas, avoiding moisture in the gas, reducing the introduction of moisture and reducing cement caking.

According to the utility model, the axial through hole of the piston rod is in sliding communication with the vent pipe, and the axial through hole of the hollow oil cylinder and the vent pipe jointly form a blowing structure, so that the hollow oil cylinder provides high-pressure air for the blowing structure to flow to the conical head, the powder around the conical head is cleaned, the accumulated cement can be loose and fall off due to the high-pressure air, the flow of the cement is accelerated, and the problem of wall built-up accumulation in the discharging process of a cement warehouse is solved. The breather pipe enters the axial through hole of the piston rod and is in sliding communication with the axial through hole, so that the hollow oil cylinder is of a single-output-rod structure, the oil cylinder structure is compact, the structure can be suitable for an operation environment with limited installation space, and the application range is wider.

Drawings

Fig. 1 is a schematic cross-sectional view of a hollow cylinder according to an embodiment of the present utility model.

Fig. 2 is a schematic perspective view of a block-removing device according to an embodiment of the utility model.

Fig. 3 is a schematic cross-sectional view illustrating a first state of the blocking remover according to an embodiment of the present utility model.

Fig. 4 is a schematic cross-sectional view illustrating a second state of the blocking remover according to an embodiment of the present utility model.

In the figure: 1. a cylinder; 11. a cylinder port; 12. a sidewall; 13. a liquid containing space; 131. a first liquid containing space; 132. a second liquid containing space; 14. a cylinder bottom; 2. a piston rod; 21. a through hole; 3. a piston; 4. a vent pipe; 5. a guide sleeve; 6. an oil port; 61. a first oil port; 62. a second oil port; 7. sealing; 8. a conical head; 81. a small hole; 9. a proximity switch; 91. an upper limit proximity switch; 92. and a lower limit proximity switch.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

As shown in fig. 1, the built-in hollow cylinder of the first preferred embodiment of the present utility model is disclosed and explained in detail, wherein the cylinder includes a cylinder body 1, a piston rod 2, a piston 3, a guide sleeve 5 and a vent pipe 4.

The piston rod 2 is provided with an axial through hole 21, the cylinder body 1 is provided with a cylinder opening 11, a side wall 12, a liquid containing space 13 and a cylinder bottom 14, the piston rod 2 is inserted into the liquid containing space 13 from the cylinder opening 11, the piston 3 is connected to one end of the piston rod 2, the liquid containing space 13 is divided into a first liquid containing space 131 and a second liquid containing space 132 by the piston 3, the piston 3 drives the piston rod 2 to move up and down in the liquid containing space 13, namely, the moving stroke of the piston 3 in the cylinder body 1 is not more than the difference between the height of the liquid containing space 13 and the height of the piston 3, and the sizes of the first liquid containing space 131 and the second liquid containing space 132 change along with the movement of the piston 3.

The cylinder body 1 is provided with a first oil port 61 and a second oil port 62, the first oil port 61 may be disposed on the side wall 12 or the cylinder port 11, the first oil port 61 is communicated with the first liquid containing space 131, the second oil port 62 is disposed on the side wall 12 or the cylinder bottom 14, and the second oil port 62 is communicated with the second liquid containing space 132.

And an upper stroke limit and a lower stroke limit are arranged in the movable stroke range of the piston 3, the oil cylinder is provided with a first state and a second state, the first state is when the piston 3 moves to the upper stroke limit, and the second state is when the piston 3 moves to the lower stroke limit.

The breather pipe 4 passes through the cylinder bottom 14, extends into the through hole 21 and is communicated with the through hole 21, and during the stroke of the piston rod 2, the breather pipe 4 always keeps a part extending into the through hole 21, namely, the breather pipe 4 and the through hole 21 keep a communicated state. In this embodiment, the vent pipe 4 and the through hole 21 are kept sealed while sliding, and a seal ring is used for sealing, and a guide ring, an O-ring, and a U-ring for a shaft are provided.

The through hole 21 in the piston rod 2 and the vent pipe 4 are high-pressure air circulation channels, namely the piston 3 and the rod 2 isolate an oil way from an air way independently and do not interfere with each other.

Further, the through hole 21 may have various shapes, and during the movement of the piston 3, the through hole 21 reserves a movement space of the vent pipe 4, so as not to interfere with the travel of the vent pipe 4 in the through hole 21.

The cylinder port 11 end install uide bushing 5, uide bushing 5 hole with piston rod 2 sliding fit, piston 3 periphery cover is equipped with seal 7, uide bushing 5 hole with the cover is equipped with seal 7 between piston rod 2, improves sealed effect.

Further, the side wall 12 of the cylinder body 1 is provided with a proximity switch 9, that is, an upper limit proximity switch 91 and a lower limit proximity switch 92 are respectively arranged at the upper limit and the lower limit, that is, the distance between the upper limit proximity switch 91 and the lower limit proximity switch 92 in the vertical direction does not exceed the travel distance of the piston 3. The upper limit proximity switch 91 and the lower limit proximity switch 92 are transmission carriers for connecting an electric control and a mechanism, and can realize remote control in operation and centralized control and automatic control.

Further, an induction ring is arranged on the piston 3, the induction ring can be used as an induction component of the oil cylinder in operation, in the reciprocating motion, the piston 3 automatically commutates to operate after the induction ring senses the upper limit proximity switch 91, the piston 3 automatically ascends after the induction ring senses the lower limit proximity switch 92, and the induction ring, the upper limit proximity switch 91 and the lower limit proximity switch 92 jointly form automatic control.

As shown in fig. 2-3, the block-removing device according to the first preferred embodiment of the present utility model is disclosed and explained in detail, wherein the free end of the piston rod 2 is provided with a conical head 8. The cone head 8 becomes a drilling head for the blocks encountered by the oil cylinder in the ascending process, the blocks can be propped against and broken, meanwhile, high-pressure air small holes 81 are formed in the cone head 8, the small holes 81 are communicated with the through holes 21, and the distribution and the number of the small holes 81 are not particularly limited. One end of the vent pipe 4 is connected with a high-pressure air source, high-pressure air passes through the vent pipe 4 and the axial through hole 21 of the piston rod 2 and finally is blown out from the small hole 81, so that intractable powder on the wall can be blown off, the impact of the high-pressure air is accompanied in the whole operation process of the blocking remover, the flow of the powder is promoted, and the blanking opening is dredged.

Further, a small cover plate can be arranged on the small hole 81, the small cover plate is opened under the impact of high-pressure air, the high-pressure air is released, when the high-pressure air disappears, the small cover plate covers the small hole 81, the air can be saved, and meanwhile, the effect of preventing powder from falling into the small hole to cause the blockage of the small hole 81 and the through hole 21 is achieved.

Further, the taper head 8 and the piston rod 2 may be integrally formed, may be fitted to the piston rod 2, or may be fitted over the piston rod 2. The piston 3 and the piston rod 2 may also be of unitary construction.

Further, the breather pipe 4 is connected with an oil-water separator, dry high-pressure air is required to be introduced into the cement ash warehouse, and the oil-water separator is used for filtering and separating the entering air so as to ensure the dryness of the inlet air. The oil-water separator also comprises a telescopic air pipe, the telescopic air pipe is a flexible ventilation carrier for the oil cylinder to run, the hollow oil cylinder can be lengthened in the ascending process, and conversely, the hollow oil cylinder can be retracted in the descending process.

The hollow cylinder is essentially an energy conversion device as an actuator. The hollow oil cylinder converts the pressure energy of the input liquid into mechanical energy of the linear motion of the piston 3, meanwhile, the axial through hole and the ventilation pipeline jointly form a blowing structure, the hollow oil cylinder provides a blowing structure of high-pressure air flow, and the powdery material around the piston rod 2 is cleaned.

Further, a clamping key is arranged at the cylinder bottom 14 to fix the vent pipe 4 with the cylinder body 1, and a jackscrew for preventing the vent pipe 4 from rotating is arranged on the side edge of the vent pipe 4, so that the vent pipe 4 is ensured not to rotate.

In one embodiment, the stroke of the oil cylinder is 1500mm, the installation space can reach the installation condition only by 1800mm, and the oil cylinder is suitable for occasions with limited installation space. The oil cylinder is compact in structure and high in technical precision requirement.

The oil cylinder is not only limited to vertical installation occasions, but also suitable for other installation angles, and can be adjusted according to the size, the direction, the height and the like of the discharge hole of the cement silo, so that the use purpose can be achieved in operation.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (7)

1. The utility model provides a clear stifled built-in hollow cylinder of feed opening, includes a cylinder body, a piston rod and a piston, its characterized in that still includes a breather pipe, the cylinder body has a jar mouth, a lateral wall, a liquid holding space and a cylinder bottom, the piston connect in piston rod one end, the piston slide in the cylinder body, be equipped with an axial through-hole in the piston rod, the breather pipe passes the cylinder bottom stretches into in the through-hole to keep sliding communication, the breather pipe with set up sliding seal structure between the axial through-hole.

2. The hollow cylinder of claim 1, wherein the cylinder sidewall is provided with a proximity switch comprising an upper limit proximity switch and a lower limit proximity switch.

3. The hollow cylinder of claim 2, wherein an induction ring is provided on the piston.

4. The blanking mouth clear stifled device, characterized by that, include one arbitrary in claim 1-3 hollow hydro-cylinder and set up the conical head of piston rod other end, open the aperture in the conical head, the aperture with the through-hole intercommunication.

5. The unblocking apparatus of claim 4, wherein a small cover plate is disposed on the small hole, the small cover plate having two states of opening and closing.

6. The unblocking apparatus of claim 4, wherein the cone and the piston rod are of unitary construction.

7. The unblocking apparatus of claim 4, wherein the breather pipe is coupled to an oil-water separator.

Images