CN218167363U

CN218167363U - Pneumatic reciprocating rapping device

Info

Publication number: CN218167363U
Application number: CN202222330412.4U
Authority: CN
Inventors: 毛东风; 曾锋; 吕正玲; 王鹏
Original assignee: Hubei Ion Wind Technology Co ltd
Current assignee: Hubei Ion Wind Technology Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-30
Anticipated expiration: 2032-08-30

Abstract

The utility model discloses a pneumatic reciprocating rapping device, which relates to the technical field of ash removal of industrial production electric dust collectors and comprises a bracket and a rapping component fixed on the bracket, wherein the rapping component comprises a rapping anvil, an outer cylinder and a base which are sequentially butted and fixed from top to bottom; a hollow cavity is arranged in the outer cylinder; the hollow cavity is filled with the hammer head, and an air gap is formed between the hammer head and the inner wall of the hollow cavity; a plurality of groups of exhaust holes communicated with the outside are arranged in the rapping anvil, the exhaust holes are circumferentially arranged along the rapping anvil, and each exhaust hole is communicated with the hollow cavity; an air inlet is arranged in the base and is communicated with the hollow cavity; compressed gas is intermittently introduced into the air inlet hole. So that the hammer head moves up and down in the hollow cavity and then the rapping anvil is rapped in a reciprocating way. In the scheme, the rapping is performed in a non-electric starting driving mode, an electronic element is not required to be arranged on the rapping assembly in the traditional scheme, and a better rapping effect can be obtained.

Description

Pneumatic reciprocating rapping device

Technical Field

The utility model relates to an industrial production electrostatic precipitator deashing technical field specifically is a pneumatic reciprocal rapping device.

Background

The electric dust collector in China mostly adopts a rapping device to remove dust. The rapping device has the task of clearing dust adhered to the electrodes at any time, so that the dust falls into the dust hopper and is discharged in time, which is an important condition for ensuring the normal operation of the electric dust collector. The rapping device that we commonly use today is an electromagnetic rapping.

The rapping force, rapping cycle and rapping sequence of the electromagnetic flux rapper are controlled by a microcomputer rapper, and each rapping hammer can be randomly controlled within a certain range. However, most rotating parts of the electromagnetic rapping dust cleaning device are in an electric field and are in a severe smoke environment such as dust for a long time, so that the reliability and the durability of the electromagnetic rapping dust cleaning device are greatly reduced. However, if the rapping motor burns out or the rapping shaft is twisted off or the bearing is worn, the whole electric field rapping is disabled, so that the dust removal efficiency is greatly influenced.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides an operation of dust remover deashing is realized to application pneumatic mode, also utilizes pneumatic reciprocal rapping device to replace present commonly used electromagnetism rapping device, and then reaches increase of service life, guarantees that the dust remover can high-efficient purpose of operation.

Specifically, the utility model provides a detailed scheme as follows:

a pneumatic reciprocating rapping device comprises a bracket and a rapping assembly fixed on the bracket, wherein the rapping assembly comprises a rapping anvil, an outer cylinder and a base which are sequentially butted and fixed from top to bottom;

a hollow cavity is arranged in the outer cylinder; a hammer head is filled in the hollow cavity, and an air gap is formed between the hammer head and the inner wall of the hollow cavity;

a plurality of groups of exhaust holes communicated with the outside are formed in the rapping anvil, the exhaust holes are circumferentially arranged along the rapping anvil, and each exhaust hole is communicated with the hollow cavity;

an air inlet is arranged in the base and is communicated with the hollow cavity;

compressed gas is intermittently introduced into the air inlet hole, so that the hammer head moves up and down in the hollow cavity and then vibrates the rapping anvil in a reciprocating manner.

Further, the hammer head is provided with a first spherical hammer, and the outer wall of the first spherical hammer is not in contact with the inner wall of the hollow cavity; under the continuous action of compressed gas, the size of an air gap formed by the first spherical hammer in a suspended mode in the hollow cavity is 0.1-0.15 mm.

Further, the hammer head is also provided with a second spherical hammer, and the size of the second spherical hammer is the same as that of the first spherical hammer; the first spherical hammer and the second spherical hammer are fixedly connected through a hammer arm.

Furthermore, the end face of the rapping anvil, which is right opposite to the hollow cavity, is provided with an inner concave part, the inner concave part is of an arc structure matched with the first spherical hammer, and the exhaust hole is formed in the inner concave part.

Furthermore, the rapping anvil and the bracket are also connected in a reinforcing manner through reinforcing ribs.

Further, the air inlet hole comprises a first air hole coaxial with the hollow cavity and a second air hole which is directly communicated with the first air hole Kong Chui; and a plug is arranged at the bottom of the first air hole.

Further, the second air hole extends outwards or inwards; when the second air hole extends towards the inner side, the bracket is provided with an air guide hole which corresponds to and is communicated with the second air hole.

The beneficial effect that adopts this technical scheme to reach does:

in the scheme, the rapping is performed in a non-electric starting driving mode, an electronic element does not need to be arranged on the rapping assembly in the traditional scheme, and a better rapping effect can be obtained; especially, in the long-term use process, even in the high-dust working environment, the reliability and the durability of the rapping device in the scheme cannot be greatly influenced, and the service life can be obviously prolonged.

Drawings

Fig. 1 is a side view of the device.

Fig. 2 is a front view of the device.

Fig. 3 is a cross-sectional view of the present device.

Fig. 4 is a schematic view of the air flow of the device after compressed air is introduced.

Fig. 5 is a schematic view of the air flow after the compressed air is introduced when the evacuation holes are provided in the base.

Fig. 6 is a structural view of the present apparatus in which the second air hole is extended inward.

Wherein: 11 supports, 12 reinforcing ribs, 21 rapping anvils, 22 outer cylinders, 23 hammerheads, 24 bases, 211 exhaust holes, 212 inner concave parts and 241 air inlet holes.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The embodiment provides a pneumatic reciprocating rapping device, which adopts a non-electric starting driving mode to carry out rapping dust removal, does not need to arrange an electronic element on a rapping assembly in the traditional scheme, and can obtain better rapping effect; especially, in the long-term use process, even in the high-dust working environment, the reliability and the durability of the rapping device in the scheme cannot be greatly influenced, and the service life can be obviously prolonged.

Specifically, referring to fig. 1-3, the rapping device mentioned in the present embodiment includes a bracket 11 and a rapping assembly fixed on the bracket 11, where the bracket 11 is used as a main supporting element, so that the rapping assembly can be stably fixed at an end of an anode plate (not shown), and the anode plate is driven to vibrate synchronously by vibration generated inside the rapping assembly, thereby shaking off dust adhered to the anode plate.

In the present embodiment, the rapping assembly comprises a rapping anvil 21, an outer cylinder 22 and a base 24 which are butted and fixed in sequence from top to bottom; the outer cylinder 22 is internally provided with a hollow cavity; the hammer head 23 is filled in the hollow cavity, and an air gap is formed between the hammer head 23 and the inner wall of the hollow cavity; meanwhile, a plurality of groups of exhaust holes 211 communicated with the outside are arranged in the rapping anvil 21, the exhaust holes 211 are circumferentially arranged along the rapping anvil 21, and each exhaust hole 211 is communicated with the hollow cavity; an air inlet hole 241 is formed in the base 24, and the air inlet hole 241 is communicated with the hollow cavity; intermittent compressed gas is introduced into the air inlet hole 241, so that the hammer head 23 moves up and down in the hollow cavity to reciprocally rap the rapping anvil 21.

It will be understood that in this embodiment rapping is achieved by means of compressed gas and a hammer 23. Namely, in a pulse period, injecting compressed gas into the gas inlet 241 until the compressed gas overcomes the gravity of the hammer 23, the hammer 23 is forced to move upwards until the compressed gas strikes the rapping anvil 21, and the vibration generated by the rapping anvil 21 is transmitted to the anode plate, so that the dust adhered to the anode plate is shaken off; then the compressed gas stops injecting, and the hammer 23 gradually descends to the position of the base 24 under the action of gravity. When the second pulse period begins, the compressed gas is injected into the air inlet hole 241 again, and the hammer head 23 ascends again to beat the rapping anvil 21 … …; the vibration of the rapping anvil 21 is continuously beaten by the hammer heads 23 through the cyclic reciprocating of one pulse period and one pulse period.

Also in this embodiment, referring to fig. 4-5, there are two differences from the conventional design.

One is as follows: the hammer 23 in this scheme has the air gap with the inner wall of well cavity.

That is, when the compressed air is injected, a very small amount of gas overflows upwards through the air gap; at this time, almost no friction exists between the hammer 23 and the inner wall of the hollow cavity; compressed air is injected continuously, and part of air overflows from the air gap continuously, so that the whole hammer head 23 is in a suspension state in the hollow cavity; the hammer 23 can be pushed upwards by the thrust generated by injecting compressed air which is only slightly larger than the gravity of the hammer 23.

In another design, the hammer 23 may be in contact with the hollow cavity, that is, there is no air gap between the hammer 23 and the hollow cavity, although the same effect can be achieved, it is obvious that in this embodiment, a larger amount of compressed air needs to be injected, because the thrust generated by the compressed air needs to overcome two forces, namely, the gravity of the hammer 23 and the friction generated by the hammer 23 rolling against the inner wall of the hollow cavity.

And the second step is as follows: we place the exhaust holes 211 above the hollow cavity.

The design is also used for further matching with the outer discharge of the air gap; the gas overflowing upwards can be directly discharged through the exhaust holes 211 above the hammer head, and the hammer head 23 hardly has any resistance in the ascending process; the high efficiency of the hammer motion is ensured.

In another embodiment, the vent hole is arranged at the base 24, that is, the air inlet hole 241 is opposite to the vent hole 211, and the aperture of the vent hole 211 is smaller than that of the air inlet hole 241, so that the hammer 23 can be lifted up after a certain pressure is reached as long as compressed air is continuously injected into the air inlet hole 241; the gas injection is stopped, the gas remained in the hollow cavity can be directly discharged from the exhaust hole at the position of the base 24, and the hammer 23 further descends; this way, to a certain extent, also enables repeated hammering of the rapping anvil 21 by the hammer heads 23.

However, in this state, the vent hole is only designed at the position of the base 24; referring to fig. 5, when the hammer 23 starts to rise by continuously injecting compressed air, the space between the hammer 23 and the rapping anvil 21 is reduced, and the gas in the space cannot be rapidly guided and released and is compressed to a certain extent (referred to as upper compressed gas for short), and the upper compressed gas can generate downward reaction force to the hammer 23 at this time, so as to prevent the hammer 23 from rapidly ascending, thereby obviously weakening the ascending kinetic energy of the hammer 23, and although the hammer 23 finally beats on the rapping anvil 21 by continuously injecting the bottom compressed gas, the force is obviously reduced by comparison.

Therefore, we have chosen a significantly advantageous design, where the hammer 23 is designed to be an air gap with the inner wall of the hollow cavity, and the exhaust hole 211 is arranged above the hollow cavity. So that even if the space between the hammer head 23 and the rapping anvil 21 is reduced, this part of the gas will be exhausted through the exhaust holes; the movement of the hammer 23 is not influenced by the generation of upper compressed gas, and meanwhile, the hammer 23 hardly generates friction with the inner wall of the hollow cavity in the ascending process; therefore, under the action of the compressed gas with the same pressure intensity, the design of the scheme is adopted, so that the hammer 23 can more effectively beat the rapping anvil 21, and the vibration strength of the rapping anvil 21 is ensured.

Optionally, the size of the air gap provided by the scheme is 0.1-0.15 mm.

In the embodiment, referring to fig. 1 to 3 and fig. 6, the structure of the hammer 23 is also designed; specifically, the hammer head 23 is provided with a first spherical hammer, and the outer wall of the first spherical hammer is not in contact with the inner wall of the hollow cavity; under the continuous action of the compressed gas, the first spherical hammer is suspended in an air gap formed in the hollow cavity. Meanwhile, the hammer head 23 is also provided with a second spherical hammer, and the size of the second spherical hammer is the same as that of the first spherical hammer; the first spherical hammer and the second spherical hammer are fixedly connected through a hammer arm.

By means of the structural design of the hammer head 23, two spherical hammers are arranged in the hammer head 23, and air gaps (upper air gaps and lower air gaps) are formed between the upper spherical hammer and the lower spherical hammer and the inner wall of the hollow cavity; thus, under the injection of compressed gas, part of the compressed gas continuously passes through the upper air gap and the lower air gap (the upper air gap and the lower air gap), the stability of the suspension state of the whole hammer 23 can be effectively ensured, and the possibility that the compressed gas touches the inner wall of the hollow cavity in the ascending process is reduced.

In this embodiment, the end surface of the rapping anvil 21 facing the hollow cavity is provided with an inner concave portion 212, the inner concave portion 212 is an arc-shaped structure matched with the first spherical hammer, and the exhaust hole 211 is arranged in the inner concave portion 212.

At the same time, in order to improve the stability of the whole device, the rapping anvil 21 is connected with the bracket 11 by reinforcement ribs 12.

In the scheme, the air inlet 241 comprises a first air hole coaxial with the hollow cavity and a second air hole which is directly communicated with the first air Kong Chui; the bottom of the first air hole is provided with a plug to prevent air leakage when compressed air is injected. The opening directions of the second air holes are two; the first is that the second air hole extends outwards, namely the opening direction is outward; can be directly communicated with an external gas compression device through the adapter. And the second is that the second air hole extends inwards; when the second air hole extends inward, it is also necessary to design an air guide hole in the bracket 11 to correspond to and communicate with the second air hole. At this time, the injection direction of the compressed gas passes through the gas guide hole and the second gas hole and then enters the first gas hole.

Structure more than the first gas pocket adopts, and its main objective is the convenience of punching for processing, then has the end cap at the afterbody of first gas pocket, prevents that gas leakage from overflowing.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the technical product is conventionally placed in use, and are only used for convenience of describing the technology and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and therefore, should not be construed as limiting the technology. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Thus, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "a plurality" means two or more.

Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present technology, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present technology can be understood in a specific case to those of ordinary skill in the art.

It should be noted that there are no specific structures but rather a number of modifications, decorations or changes that could be made by one skilled in the art without departing from the principles of the technology, and that the above-mentioned features can be combined in any suitable manner; such modifications, variations, or combinations, or applying the concepts and solutions of the technology directly to other applications without further modifications, are intended to be within the scope of the present technology.

Claims

1. A pneumatic reciprocating rapping device comprises a bracket (11) and a rapping assembly fixed on the bracket (11), and is characterized in that the rapping assembly comprises a rapping anvil (21), an outer cylinder (22) and a base (24) which are sequentially butted and fixed from top to bottom;

the outer cylinder (22) is internally provided with a hollow cavity; a hammer head (23) is filled in the hollow cavity, and an air gap is formed between the hammer head (23) and the inner wall of the hollow cavity;

a plurality of groups of exhaust holes (211) communicated with the outside are arranged in the rapping anvil (21), the exhaust holes (211) are circumferentially arranged along the rapping anvil (21), and each exhaust hole (211) is communicated with the hollow cavity;

an air inlet hole (241) is formed in the base (24), and the air inlet hole (241) is communicated with the hollow cavity;

compressed gas is intermittently introduced into the air inlet hole (241), so that the hammer head (23) moves up and down in the hollow cavity to repeatedly shake the rapping anvil (21).

2. A pneumatic reciprocating rapping device in accordance with claim 1, wherein said hammer head (23) has a first spherical hammer, the outer wall of which is not connected to the inner wall of said hollow chamber; under the continuous action of compressed gas, the size of an air gap formed by the first spherical hammer in a suspended mode in the hollow cavity is 0.1-0.15 mm.

3. A pneumatic reciprocating rapping device in accordance with claim 2, wherein said hammer head (23) further has a second spherical hammer, which is the same size as said first spherical hammer; the first spherical hammer and the second spherical hammer are fixedly connected through a hammer arm.

4. A pneumatic reciprocating rapping device in accordance with claim 2 or 3, wherein the end surface of said rapping anvil (21) facing said hollow cavity is provided with an inner recess (212), said inner recess (212) being of an arc-shaped configuration adapted to said first spherical hammer, said exhaust holes (211) being provided in said inner recess (212).

5. A pneumatic reciprocating rapping device in accordance with claim 1, wherein said rapping anvil (21) is also in reinforced connection with said support (11) via reinforcing bars (12).

6. A pneumatic reciprocating rapping device in accordance with claim 1, wherein said air inlet holes (241) comprise a first air hole coaxial with said hollow cavity and a second air hole straight and communicating with said first air Kong Chui; and a plug is arranged at the bottom of the first air hole.

7. A pneumatic reciprocating rapping device in accordance with claim 6, wherein said second air holes extend either to the outside or to the inside; when the second air hole extends towards the inner side, the bracket (11) is provided with an air guide hole which corresponds to and is communicated with the second air hole.