阅读说明：本技术 一种气动管道清理设备 (Pneumatic pipeline cleaning equipment ) 是由 马玉皓 于 2020-12-28 设计创作，主要内容包括：本发明涉及管道清理设备技术领域,具体地说,涉及一种气动管道清理设备。包括清理装置、用于驱动清理装置动作进行管道清理的气动执行机构以及为气动执行机构提供气源的气源处理机构；所述气动执行机构包括壳体、芯轴、套装在芯轴上并能沿芯轴轴向做往复运动的活塞和气道。本发明采用气动方式驱动清理毛刷产生单向加弧线回转运动进行管道清理,设备结构简单,操作方便,自动化程度更高；而且,体积小,重量轻,更便于携带；此外,清洁能力强,清洁效率高,能够更好的为国民经济领域和军用领域管道的清理提供便利。(The invention relates to the technical field of pipeline cleaning equipment, in particular to pneumatic pipeline cleaning equipment. The pipeline cleaning device comprises a cleaning device, a pneumatic execution mechanism and an air source processing mechanism, wherein the pneumatic execution mechanism is used for driving the cleaning device to act to clean a pipeline; the pneumatic actuating mechanism comprises a shell, a mandrel, a piston and an air passage, wherein the piston and the air passage are sleeved on the mandrel and can reciprocate along the axial direction of the mandrel. The pneumatic pipeline cleaning device has the advantages that the cleaning brush is driven in a pneumatic mode to generate unidirectional and arc line rotating motion for cleaning the pipeline, the structure of the device is simple, the operation is convenient, and the automation degree is higher; moreover, the volume is small, the weight is light, and the carrying is more convenient; in addition, clean ability is strong, and clean efficient, can be better for the national economy field and for military use field pipeline's clearance provide convenience.)

1. A pneumatic pipeline cleaning equipment which characterized in that: the pipeline cleaning device comprises a cleaning device, a pneumatic execution mechanism and an air source processing mechanism, wherein the pneumatic execution mechanism is used for driving the cleaning device to act to clean a pipeline; the pneumatic actuating mechanism comprises a shell, a mandrel (1) and a piston (2) which is sleeved on the mandrel (1) and can do reciprocating motion along the axial direction of the mandrel (1); the shell comprises a front cover (3), a first rear cover (4), a second rear cover (5) and a driving sleeve (6) assembled between the front cover (3) and the first rear cover (4); the mandrel (1) is arranged in an inner cavity of the driving sleeve (6), is fixedly assembled on the first rear cover (4) through a fastener (7) and the second rear cover (5), and the tail end of the mandrel sequentially penetrates through the first rear cover (4) and the second rear cover (5) and is connected with a valve (9) arranged outside the shell through a butt wire (8); a front exhaust hole (10) communicating the inner cavity of the driving sleeve (6) with the outside is formed in the position, close to the front end, of the side wall of the driving sleeve (6), and a rear exhaust hole (11) communicating the inner cavity of the driving sleeve (6) with the outside is formed in the position, close to the tail end, of the side wall of the driving sleeve (6); the pneumatic actuating mechanism also comprises an air passage, wherein the air passage comprises a ventilation cavity (12) arranged in the mandrel (1) and a front transition pipe (13) and a rear transition pipe (14) which are embedded in the piston (2) and communicated with the front end and the rear end of the piston (2); a sealing steel ball (16) is arranged between the front transition pipe (13) and the rear transition pipe (14); the ventilation cavity (12) extends forwards from the tail end of the mandrel (1) to the position close to the front end of the mandrel (1), and the side wall of the mandrel (1) corresponding to the front end of the ventilation cavity is provided with a plurality of air outlet holes (15); the ventilation cavity (12) of the mandrel (1) is communicated with the two transition pipes through an air outlet hole (15) and a ventilation hole (17) formed in the piston (2); the cleaning device comprises a connecting rod (18) and a cleaning brush (19) which is sleeved on the connecting rod (18) and can freely rotate along the connecting rod (18), and the tail end of the connecting rod (18) is fixedly assembled on the front cover (3) through a fixing fastener (20).

2. The pneumatic pipe cleaning apparatus of claim 1, wherein: the air source processing mechanism comprises an air source processing element (22) connected with the valve (9) through a pipeline (21), and the air source processing element (22) is connected with an external air source pipeline.

3. The pneumatic pipe cleaning apparatus of claim 2, wherein: and a pressure reducing valve (23) is additionally arranged on a pipeline between the air source processing element (22) and an external air source.

4. The pneumatic pipe cleaning apparatus according to any one of claims 1 to 3, wherein: the central axes of the front transition pipe (13) and the rear transition pipe (14) are collinear, and the central axes of the front transition pipe and the rear transition pipe are respectively parallel to the central axis of the mandrel (1).

5. The pneumatic pipe cleaning apparatus according to any one of claims 1 to 3, wherein: the diameter of the shaft section provided with the air outlet hole (15) on the mandrel (1) is slightly smaller than that of the shaft sections at two ends of the mandrel, and when the piston (2) reciprocates along the mandrel (1), the shaft section is always positioned between the front end and the tail end of the piston (2).

6. The pneumatic pipe cleaning apparatus according to any one of claims 1 to 3, wherein: the front exhaust holes (10) and the rear exhaust holes (11) are uniformly distributed along the circumference of the driving sleeve (6) respectively.

7. The pneumatic pipe cleaning apparatus according to any one of claims 1 to 3, wherein: sealing gaskets (24) are respectively additionally arranged between the mandrel (1) and the first rear cover (4) and between the mandrel (1) and the fastener (7).

8. The pneumatic pipe cleaning apparatus according to any one of claims 1 to 3, wherein: o-shaped sealing rings (25) are respectively additionally arranged between the driving sleeve (6) and the front cover (3) and between the driving sleeve (6) and the first rear cover (4).

Technical Field

The invention relates to the technical field of pipeline cleaning equipment, in particular to pneumatic pipeline cleaning equipment.

Background

The pipeline is widely applied in various industries, namely the national economy field or the military field. However, after long-term use, dirt is accumulated in the pipeline, and the pipe diameter is reduced, and even the pipeline is blocked. Therefore, in order to ensure the use quality of the pipeline, the pipeline is cleaned regularly during the use process of the pipeline, and the pipeline is important to clean. The pipeline cleaning process needs to be cleaned by cleaning equipment, and the existing pipeline cleaning equipment has the following problems:

national economy field has dregs or oil stain to remain at the in-process of carrying petrochemical raw materials to some petrochemical pipelines can influence the transportation volume of pipeline owing to long-term the use, and these dregs or oil stain and rust stain can cause the jam even, influence petrochemical raw materials's transport. The existing pipeline cleaning equipment has the defects of inconvenient operation, large equipment volume and inconvenient movement and fixation when used for cleaning the petroleum chemical raw material conveying pipeline, and is difficult to adapt to the rapid development of the industry.

In the military field, as is well known, the modern national defense industry is changing day by day, and the technical level of manufacturing and maintaining weaponry directly determines the military strength of the country. Artillery is an important weapon equipment, barrel is an important component of the artillery, and the quality of the barrel directly influences the use safety, the shooting effect and the service life of the artillery. Not only can a large amount of materials be remained in the bore of the artillery during the launching process of the artillery, but also a large amount of adhesive materials can be generated between the artillery shell and the inner wall of the barrel. Especially, residues at the shadow line corner of the rifling gun are not easy to remove, which greatly affects the service life of the gun barrel, and accidents such as tube explosion and the like are easy to happen after the residues are accumulated to a certain extent. In order to improve the performance and the service life of the artillery, a large-scale artillery needs to be cleaned to a certain extent after unsealing, cannonball launching and sealing. The existing artillery barrel cleaning equipment has the problems of large occupied area, heavy weight, inconvenience in movement and incapability of being used in army camp and field. At present, the bore of a gun is scrubbed by pushing and pulling a poker by a plurality of soldiers in the army, so that the labor consumption is high, the efficiency is low, the cleaning degree is low, and the combat requirements of modern high-tech wars cannot be met and adapted.

Disclosure of Invention

The invention aims to provide pneumatic pipeline cleaning equipment, and solves the technical problems.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a pneumatic pipeline cleaning device comprises a cleaning device, a pneumatic execution mechanism and an air source processing mechanism, wherein the pneumatic execution mechanism is used for driving the cleaning device to act to clean a pipeline; the pneumatic actuating mechanism comprises a shell, a mandrel and a piston which is sleeved on the mandrel and can reciprocate along the axial direction of the mandrel; the shell comprises a front cover, a first rear cover, a second rear cover and a driving sleeve assembled between the front cover and the first rear cover; the mandrel is arranged in the inner cavity of the driving sleeve, is fixedly assembled on the first rear cover through a fastener and the second rear cover, and the tail end of the mandrel sequentially penetrates through the first rear cover and the second rear cover and is connected with a valve arranged on the outer side of the shell through a butt wire; a front exhaust hole communicated with the inner cavity of the driving sleeve and the outside is formed in the position, close to the front end, of the side wall of the driving sleeve, and a rear exhaust hole communicated with the inner cavity of the driving sleeve and the outside is formed in the position, close to the tail end, of the side wall of the driving sleeve; the pneumatic actuating mechanism also comprises an air passage, wherein the air passage comprises a ventilation cavity arranged in the mandrel, and a front transition pipe and a rear transition pipe which are embedded in the piston and communicated with the front end and the rear end of the piston; a sealing steel ball is arranged between the front transition pipe and the rear transition pipe; the ventilation cavity extends forwards from the tail end of the mandrel to the position close to the front end of the mandrel, and the side wall of the mandrel corresponding to the front end of the ventilation cavity is provided with a plurality of air outlet holes; the ventilation cavity of the mandrel is communicated with the two transition pipes through an air outlet and a vent hole formed in the piston; the cleaning device comprises a connecting rod and a cleaning brush which is sleeved on the connecting rod and can freely rotate along the connecting rod, and the tail end of the connecting rod is fixedly assembled on the front cover through a fixing fastener.

Preferably: the air source processing mechanism comprises an air source processing element connected with a valve through a pipeline, and the air source processing element is connected with an external air source pipeline.

Preferably: and a pressure reducing valve is additionally arranged on a pipeline between the air source processing element and an external air source.

Preferably: the central axes of the front transition pipe and the rear transition pipe are collinear, and the central axes of the front transition pipe and the rear transition pipe are respectively parallel to the central axis of the mandrel.

Preferably: the diameter of the shaft section provided with the air outlet hole on the mandrel is slightly smaller than that of the shaft sections at the two ends of the mandrel, and when the piston reciprocates along the mandrel, the shaft section is always positioned between the front end and the tail end of the piston.

Preferably: the front exhaust hole and the rear exhaust hole are uniformly distributed along the circumference of the driving sleeve respectively.

Preferably: and sealing gaskets are respectively arranged between the mandrel and the first rear cover and between the mandrel and the fastener.

Preferably: o-shaped sealing rings are respectively additionally arranged between the driving sleeve and the front cover and between the driving sleeve and the first rear cover.

Has the advantages that: compared with the prior art, the pneumatic pipeline cleaning device has the advantages that the cleaning brush is driven in a pneumatic mode to generate unidirectional arc-adding rotary motion for cleaning the pipeline, the structure of the device is simple, the operation is convenient, and the automation degree is higher; moreover, the volume is small, the weight is light, and the carrying is more convenient; in addition, clean ability is strong, and clean efficient, can be better for the national economy field and for military use field pipeline's clearance provide convenience.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view showing a state in which the piston moves forward by the compressed air according to the present invention, wherein → indicates a flow direction of the compressed air;

FIG. 3 is a schematic view showing a state in which the piston moves forward by the compressed air until the front end of the piston reaches the front exhaust hole according to the present invention,

wherein "→" indicates a flow direction of the compressed air;

fig. 4 is a schematic view showing a state in which the piston moves backward by the compressed air according to the present invention, wherein → indicates a flow direction of the compressed air;

figure 5 is a schematic view showing a state in which the piston according to the present invention is moved backward by the compressed air until the end of the piston reaches the rear discharge hole,

where "→" indicates the direction of flow of the compressed air.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

Examples

Referring to fig. 1, the pneumatic pipeline cleaning apparatus according to this embodiment includes a cleaning device, a pneumatic actuator for driving the cleaning device to perform pipeline cleaning, and an air source processing mechanism for providing an air source for the pneumatic actuator. Wherein:

the pneumatic actuating mechanism comprises a shell, a mandrel 1, a piston 2 and an air passage, wherein the piston 2 is sleeved on the mandrel 1 and can reciprocate along the axial direction of the mandrel 1. The housing comprises a front cover 3, a first rear cover 4, a second rear cover 5 and a driving sleeve 6 fitted between the front cover 3 and the first rear cover 4. The mandrel 1 is arranged in an inner cavity of the driving sleeve 6, is fixedly assembled on the first rear cover 4 through a fastener 7 and the second rear cover 5, and the tail end of the mandrel sequentially penetrates through the first rear cover 4 and the second rear cover 5 and is connected with a valve 9 arranged on the outer side of the shell through a butt wire 8. The side wall of the driving sleeve 6 is provided with a front exhaust hole 10 near the front end for communicating the inner cavity of the driving sleeve 6 with the outside, and the side wall of the driving sleeve 6 is provided with a rear exhaust hole 11 near the tail end for communicating the inner cavity of the driving sleeve 6 with the outside. The front exhaust holes 10 and the rear exhaust holes 11 are respectively and uniformly distributed along the circumference of the driving sleeve 6. The air passage comprises a ventilation cavity 12 arranged in the mandrel 1, and a front transition pipe 13 and a rear transition pipe 14 which are embedded in the piston 2 and are communicated with the front end and the rear end of the piston 2. The front transition pipe 13 and the rear transition pipe 14 are respectively fixed on the piston 2 through screws, and the central axes of the front transition pipe and the rear transition pipe are collinear and are respectively parallel to the central axis of the mandrel 1. And a sealing steel ball 16 for sealing the air passage is also arranged between the front transition pipe 13 and the rear transition pipe 14. The ventilation cavity 12 extends forwards from the tail end of the mandrel 1 to the position close to the front end of the mandrel 1, and a plurality of air outlet holes 15 are formed in the side wall of the mandrel 1 corresponding to the front end of the ventilation cavity. The diameter of the shaft section provided with the air outlet hole 15 on the mandrel 1 is slightly smaller than the diameters of the shaft sections at the two ends of the mandrel, and when the piston 2 reciprocates along the mandrel 1, the shaft section is always positioned between the front end and the tail end of the piston 2. Thus, a cavity is formed between the shaft section provided with the air outlet 15 on the mandrel 1 and the piston 2, and compressed air enters the cavity from the air outlet 15 and then enters the front transition pipe 13 or the rear transition pipe 14 from the air outlet 17 on the piston 2. The ventilation cavity 12 of the mandrel 1 is communicated with the two transition pipes through an air outlet hole 15 and a ventilation hole 17 formed in the piston 2.

The cleaning device comprises a connecting rod 18 and a cleaning brush 19 which is sleeved on the connecting rod 18 and can freely rotate along the connecting rod 18, and the tail end of the connecting rod 18 is fixedly assembled on the front cover 3 through a fixing fastener 20.

The air source processing mechanism comprises an air source processing element 22 connected with the valve 9 through a pipeline 21, and the air source processing element 22 is connected with an external air source (an air source provided by an air compressor) through a pipeline. When the pressure of the external air source is 0.5-0.8MPa, the air source processing element 22 can be directly connected with the external air source; when the pressure of the external air source is less than or equal to 20MPa, a pressure reducing valve 23 is additionally arranged on a pipeline between the air source processing element 22 and the external air source, and the air source processing element 22 is connected after the pressure of the air source is reduced to 0.5-0.8MPa through the pressure reducing valve 23.

In order to ensure the air tightness of the inner cavity of the shell, sealing gaskets 24 are respectively arranged between the mandrel 1 and the first rear cover 4 and between the mandrel 1 and the fastener 7. And O-shaped sealing rings 25 are respectively arranged between the driving sleeve 6 and the front cover 3 and between the driving sleeve 6 and the first rear cover 4.

The working principle of the invention is briefly described as follows:

before the pneumatic actuating mechanism is introduced with compressed air, the piston 2 is positioned at the tail end of the inner cavity of the shell, and at the moment, the sealing steel ball 16 is positioned at the tail end of the front transition pipe 13 to seal the port of the front transition pipe 13.

Referring to fig. 2, when compressed air is supplied to the pneumatic actuator, the compressed air sequentially enters a cavity (hereinafter referred to as a terminal cavity) formed by the terminal end surface of the piston 2 and the housing through the vent cavity 12, the vent hole 15, the vent hole 17 and the rear transition pipe 14, and then pushes the piston 2 to move forward. As the piston 2 continuously moves forward, the volume of the end cavity gradually increases, and the volume of the cavity between the front end surface of the piston 2 and the housing (hereinafter referred to as front end cavity) gradually decreases, at this time, the gas in the front end cavity is discharged out of the housing through the front exhaust hole 10.

Referring to fig. 3, when the piston 2 moves to the position where the front end of the piston 2 reaches the front exhaust hole 10, the front end cavity is not communicated with the outside. As the piston 2 continues to move forward, the gas in the front end cavity is compressed and the internal pressure begins to rise.

When the piston 2 continues to move forward until the tail end of the piston 2 reaches the rear exhaust hole 11, the tail end cavity is communicated with the outside, at the moment, gas in the tail end cavity is exhausted out of the shell through the rear exhaust hole 11, the internal pressure of the tail end cavity begins to drop, and the piston 2 begins to decelerate. When the internal pressure of the front end cavity is higher than that of the tail end cavity, the high-pressure gas in the front end cavity pushes the sealing steel ball 16 to the front end of the rear transition pipe 14 through the front transition pipe 13 to seal the port of the rear transition pipe 14.

Referring to fig. 4, after the port of the rear transition pipe 14 is blocked by the sealing steel ball 16, compressed air enters the front end cavity through the vent chamber 12, the vent hole 15, the vent hole 17 and the front transition pipe 13, and then pushes the piston 2 to move backwards. As the piston 2 moves backward, the volume of the front cavity increases gradually, and the volume of the end cavity decreases gradually, so that the gas in the end cavity is still discharged out of the housing through the rear exhaust hole 11.

Referring to fig. 5, when the piston 2 moves to the end of the piston 2 to the rear exhaust hole 11, the end cavity is not communicated with the outside. As the piston 2 continues to move backwards, the gas in the tip cavity is compressed and the internal pressure begins to rise.

When the piston 2 continues to move backwards until the front end of the piston 2 reaches the front vent hole 10, the front end cavity is communicated with the outside, at the moment, the gas in the front end cavity is discharged out of the shell through the front vent hole 10, the internal pressure of the front end cavity begins to drop, and the piston 2 begins to decelerate. When the internal pressure of the tip cavity is higher than the internal pressure of the front end cavity, the high pressure gas in the tip cavity pushes the sealing steel ball 16 through the rear transition duct 14 to the tip of the front transition duct 13 to seal the port of the front transition duct 13. At this time, the compressed air enters the end cavity again through the vent chamber 12, the vent hole 15, the vent hole 17 and the rear transition pipe 14, the pneumatic actuator enters the state shown in fig. 2 again, and the piston 2 also switches the moving direction to move forward again.

The piston 2 reciprocates along the axial direction of the mandrel 1 under the action of compressed air to generate high-frequency linear vibration, and drives the cleaning brush 19 to do unidirectional arc-added rotary motion, so that the cleaning of the pipeline is realized.

The pneumatic pipeline cleaning device has the advantages that the cleaning brush is driven in a pneumatic mode to generate unidirectional and arc line rotating motion for cleaning the pipeline, the structure of the device is simple, the operation is convenient, and the automation degree is higher; moreover, the volume is small, the weight is light, and the carrying is more convenient; in addition, clean ability is strong, and clean efficient, can be better for the national economy field and for military use field pipeline's clearance provide convenience.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings of the present invention can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.