CN114575963A

CN114575963A - Curved pipe icing clearing device, system and method

Info

Publication number: CN114575963A
Application number: CN202110195534.4A
Authority: CN
Inventors: 丛日新; 管振海; 高元; 李峰; 梁志涛; 张晓艳; 齐亚茹; 贾艳楠; 梁垚; 张聪; 李宗�; 常瑞征
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2022-06-03
Anticipated expiration: 2041-02-19
Also published as: CN114575963B

Abstract

The invention provides a curved tube icing clearing device, a clearing system and a clearing method, wherein the curved tube icing clearing device comprises an ice crushing part and a linear driving part, wherein the ice crushing part is arranged in a curved tube in a sliding manner, a passage for crankcase gas to pass through is arranged in the ice crushing part or between the ice crushing part and the curved tube, and the linear driving part is connected with the ice crushing part in a transmission manner and is driven by the linear driving part, so that the ice crushing part can move linearly to an icing position to crush icing. The device for removing the ice accretion in the crank pipe can effectively break and freeze the ice accretion position, so that the pipeline in the crank pipe is smooth, the power output failure of an engine caused by the ice accretion and blockage in a low-temperature environment can be effectively prevented, the normal running of a vehicle is ensured, and a better using effect is achieved.

Description

Curved pipe icing clearing device, system and method

Technical Field

The invention relates to the technical field, in particular to a bent pipe freezing clearing device. In addition, the invention also relates to a curved tube icing removing system provided with the curved tube icing removing device. Meanwhile, the invention also relates to a method for removing the accretion ice of the flexible pipe based on the removing system.

Background

With the development of economy, the living standard of people is continuously improved, and automobiles enter thousands of households. China is wide in territory, the temperature difference between the south and the north is great, and the temperature in the northeast and the northwest is lower than minus 30 ℃ frequently. Under this kind of natural environment, fuel vehicle crankcase ventilation pipe and engine intake pipe connector, it is that to take place to freeze stifled easily at crankcase ventilation pipe and empty filter gas pipe connector department promptly, and arouse crankcase pressure to increase, can make the oil blanket drop and lead to the oil leak when serious, or lead to engine oil emulsification scheduling problem, seriously influence the normal use of engine and the normal driving of vehicle.

Most vehicles on the market at present have no positive countermeasure to the problem of the icing of the crankshaft tube, and in the prior art, although some devices for preventing the crankshaft tube from icing exist, the structural design is complex, the energy consumption is large, and the using effect is not ideal. Therefore, it is urgently needed to develop a device, a system and a method for clearing the frozen crankshaft pipe so as to automatically and quickly clear the frozen crankshaft pipe and ensure the normal running of the vehicle.

Disclosure of Invention

In view of this, the present invention provides a device for removing frozen particles from a curved pipe, so as to remove frozen particles at a joint between the curved pipe and an air filtering pipe, so that a pipeline in the curved pipe is smooth.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a bent pipe icing cleaning device comprises:

the ice crushing part is arranged in the curved through pipe in a sliding manner, and a passage for crankcase gas to pass through is arranged in the ice crushing part or between the ice crushing part and the curved through pipe;

the linear driving part is connected with the ice crushing part in a transmission way and is connected with the driving part of the linear driving part in a receiving way, and the ice crushing part can move linearly to the icing position so as to crush the icing.

Further, sharp drive division is located the bent pipe outside, in the slide has been seted up on the bent pipe, garrulous ice portion is followed the slide removes to the part is visited the slide in order with sharp drive division links to each other, and in be equipped with in the slide and seal garrulous ice portion with the sealing in clearance between the slide.

Further, sealing part is including locating sealing strip in the slide, the sealing strip is for dividing two of arranging both sides and looks butt in, just ice crushing portion is located two between the sealing strip.

Further, the linear driving part comprises a first motor fixed on the curved pipe, a lead screw connected to the first motor, and a threaded sleeve screwed on the lead screw, and the threaded sleeve is connected with the ice crushing part.

Furthermore, the ice crushing part comprises a protection box, an ice crushing rod and an elastic sealing structure, wherein the ice crushing rod is arranged in the protection box, one end of the ice crushing rod extends out, and the elastic sealing structure wraps the protection box and is in sliding butt joint with the inner wall of the curved through pipe; the channel is formed in the ice crushing part, and the protection box is extended out of the slide way and connected with the linear driving part.

Further, the elastic sealing structure is made of rubber.

Further, the channel at least comprises a central hole which is positioned inside the ice crushing rod and axially penetrates through the channel.

Furthermore, the ice crushing rod is rotatably arranged in the protective box, and a rotary driving part for driving the ice crushing rod to rotate is arranged in the protective box.

Furthermore, a driven bevel gear is arranged on the ice crushing rod, the rotary driving part comprises a second motor arranged in the protective box and a driving bevel gear connected to the second motor, and the driving bevel gear is meshed with the driven bevel gear.

Compared with the prior art, the invention has the following advantages:

according to the device for removing the ice from the bent pipe, the ice crushing rod in the ice crushing part can rotate and move along the slide way at the same time through the ice crushing part and the linear driving part, so that ice blocks at an icing position can be effectively crushed, a pipeline in the bent pipe is smooth, the power output failure of an engine caused by icing and blocking in a low-temperature environment can be effectively prevented, the normal running of a vehicle is ensured, and a better using effect is achieved.

In addition, another object of the present invention is to provide a curved tube icing removing system, comprising:

the device for removing the ice on the curved tube;

the pressure detection unit is arranged on the curved pipe upstream of the curved pipe ice removing device along the direction of oil gas in the curved pipe;

the control unit is connected with the pressure detection unit and the curved pipe icing removing device respectively, and is configured to respond to a detection signal of the pressure detection unit and control the curved pipe icing removing device to act so as to break the icing at the icing position.

Meanwhile, the invention also provides a method for removing the icing of the bent pipe, which is based on the bent pipe icing removing system and comprises the following steps:

acquiring oil gas pressure in the crank pipe through a pressure detection unit;

the control unit compares the acquired pressure detection signal with a preset pressure threshold value, and controls the action of the curved tube icing removing device to break the icing at the icing position if the pressure detection signal is greater than the preset pressure threshold value.

Further, the preset pressure threshold is the sum of the maximum pressure in the flexible pipe and a set pressure safety coefficient.

Compared with the prior art, the beneficial effects of the system and the method for clearing the icing on the curved tube of the invention are the same as the beneficial effects of the device for clearing the icing on the curved tube, which are not described again.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a device for removing ice from a curved tube according to a first embodiment of the present invention without a sealing cover;

FIG. 2 is a schematic diagram of an internal structure of the device for removing ice from the curved tube according to the first embodiment of the present invention;

FIG. 3 is a schematic diagram of the operation of the system for removing ice from the curved tube according to the second embodiment of the present invention;

description of reference numerals:

1. a curved pipe freezing clearing device; 100. a slideway; 101. a first motor; 102. a lead screw; 103. a threaded sleeve; 104. a protective case; 1041. an elastic sealing structure; 105. a second motor; 106. a drive bevel gear; 107. a driven bevel gear; 108. an ice crushing rod; 109. a sealing cover; 200. a pressure detection unit; 300. a sealing strip; 10. a bent pipe; 20. the trachea is filtered off with air.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inside", "outside", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are to be construed as indicating or implying any particular importance.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

The embodiment relates to a bent pipe ice removing device, which mainly comprises an ice crushing part and a linear driving part on the whole, wherein the ice crushing part is arranged in the bent pipe in a sliding manner, and is arranged inside the ice crushing part, or a passage for crankcase gas to pass through is arranged between the ice crushing part and the bent pipe, and the linear driving part is connected with the ice crushing part in a transmission manner and is connected with the linear driving part in an accepting manner, so that the ice crushing part can move linearly to an icing position to crush the ice.

The device for removing the frozen water in the crank pipe can break the frozen position, so that the pipeline in the crank pipe is smooth, the failure of the power output of the engine caused by the freezing blockage in the low-temperature environment can be effectively prevented, and the normal running of a vehicle is ensured.

Based on the above design concept, an exemplary structure of the device 1 for removing ice from the curved tube according to the present embodiment is shown in fig. 1 and fig. 2, wherein, as mentioned above, the ice crushing portion according to the present embodiment is slidably disposed in the curved tube 10, and the linear driving portion is in transmission connection with the ice crushing portion, and under the driving of the linear driving portion, the ice crushing portion can move linearly towards the freezing position, that is, towards the joint between the curved tube 10 and the air filtering air tube 20, so as to crush the ice.

Specifically, as shown in fig. 1 and 2, the linear driving part of the present embodiment is located outside the curved pipe 10, a chute 100 is opened on the curved pipe 10, and the ice crushing part moves along the chute 100 and partially protrudes out of the chute 100 to be connected to the linear driving part. The linear driving part of the present embodiment specifically includes a first motor 101 fixed on the curved tube 10, a lead screw 102 connected to the first motor 101, and a threaded sleeve 103 threaded on the lead screw 102, where the threaded sleeve 103 is connected to the ice crushing part. The slide 100 formed on the curved tube 10 has a longitudinal direction along the axial direction of the curved tube 10 and is aligned with the axial direction of the lead screw 102.

In this embodiment, the first motor 101 drives the screw rod 102 to rotate, and drives the threaded sleeve 103 to move linearly along the axial direction of the screw rod 102, so that the shaft sleeve drives the ice crushing portion to move linearly along the slideway 100.

It should be noted that, in addition to the above structure, the linear driving portion of the present embodiment may also adopt other driving devices, such as an oil cylinder, an air cylinder, and the like.

In order to improve the sealing performance inside the curved pipe 10, a sealing portion for sealing a gap between the crushed ice portion and the chute 100 is provided in the chute 100. Specifically, as shown in fig. 2, the sealing portion specifically includes two sealing strips 300 disposed in the chute 100, the two sealing strips 300 are disposed on two sides and abutted against each other, and the ice crushing portion is sandwiched between the two sealing strips 300, so that excessive leakage of oil gas flowing through the curved pipe 10 can be prevented.

In order to further prevent the oil gas flowing through the curved pipe 10 from leaking, in this embodiment, a sealing cover 109 detachably connected to the curved pipe 10 is disposed on the curved pipe 10, a sealing space is formed inside the sealing cover 109, and the linear driving portion and the slide 100 are disposed in the sealing space. Wherein, this sealed cowling 109 can adopt the longitudinal section to be the last casing of semicircle form and lower casing lock connection and form, in addition, can set up sealed the pad between last casing and lower casing to make the cavity that last casing and lower casing enclose the constitution constitute confined space, thereby can effectively prevent to flow through the oil gas in the bent pipe 10 and reveal.

Referring to fig. 1 and 2, the ice crushing portion of the present embodiment includes a protection box 104, an ice crushing rod 108 disposed in the protection box 104 and having one end extending, and an elastic sealing structure 1041 wrapping the protection box 104 and slidably abutting against the inner wall of the curved through tube 10. The elastic sealing structure 1041 is preferably made of rubber, and the elastic sealing structure 1041 cooperates with the sealing strip 300, so that the sealing effect between the protection box 104 and the curved tube 10 can be greatly improved.

In addition, the above-mentioned passage for the crankcase gas to pass through is formed in the ice crushing portion, and specifically, as shown in fig. 2, the passage at least includes a central hole which is located inside the ice crushing rod 108 and is arranged to penetrate axially, so that the oil gas in the crankshaft 10 can be facilitated to flow along the direction of the arrow in fig. 2.

In addition, a part of the passage for the crankcase gas is formed between the inside of the sealing cover 109 and the outer wall of the covered crank pipe 10, that is, between the ice crushing portion and the crank pipe 10.

In this embodiment, the protection box 104 protrudes from the slide 100 and is connected to the linear driving portion, so that the protection box 104 can move along the slide 100 under the driving of the linear driving portion. Specifically, one end of the protection box 104 is fixedly connected to the threaded sleeve 103, and the threaded sleeve 103 moves linearly along the lead screw 102, so as to drive the protection box 104 to move linearly along the slide 100.

In order to further improve the ice crushing effect at the iced place, in the embodiment, the ice crushing rod 108 is rotatably disposed in the protection box 104. To rotate the ice crushing rod 108, as shown in fig. 2, a driving part is disposed in the protective box 104 to drive the ice crushing rod 108 to rotate. Specifically, be equipped with driven bevel gear 107 on trash ice rod 108, the rotation driving portion is including locating the second motor 105 in the protection box 104 to and connect in the drive bevel gear 106 on second motor 105, drive bevel gear 106 links to each other with driven bevel gear 107 meshing, so, under the drive of second motor 105, drive bevel gear 106 rotates, and drive driven bevel gear 107 and rotate, thereby drive trash ice rod 108's rotation, and then can further improve the effect of freezing out the trash ice.

In this embodiment, the second motor 105, the driving bevel gear 106 and the driven bevel gear 107 are arranged to rotate the ice crushing rod 108, so that the structure is simple, the structural arrangement is convenient, the arrangement space can be saved, and the device 1 for removing ice from the curved tube is light and portable. It should be noted that, in addition to the above-mentioned structure form, the rotation driving part of the present embodiment may also adopt a rotation motor to drive the spur gear engagement transmission or a rotation motor to drive the transmission belt transmission to realize the rotation of the ice crushing rod 108.

The curved through pipe icing removing device 1 of the embodiment is at work, firstly, the ice crushing rod 108 is driven to rotate through the second motor 105, then the protection box 104 is driven to linearly move along the slide way 100 through the first motor 101, the ice crushing rod 108 is driven to rotate and linearly move along sliding at the same time, so that ice at the icing part can be crushed, and ice slag crushed by the ice crushing rod 108 enters the combustion chamber to be combusted along with the flowing of oil-gas airflow, so that the pipeline in the curved through pipe 10 is smooth. In addition, the iced part can be automatically and quickly crushed by controlling the start and stop of the first motor 101 and the second motor 105.

The device 1 for removing the ice on the curved through pipe can effectively remove the ice at the joint of the curved through pipe 10 and the air filtering air pipe 20, so that the pipeline in the curved through pipe 10 is smooth, the failure of the power output of the engine caused by the ice and blockage at the joint of the crankcase ventilation pipe and the air outlet pipe of the air filter in a low-temperature environment can be effectively prevented, the normal work of the engine and the normal running of a vehicle are ensured, and a better using effect is achieved.

Example two

The embodiment relates to a curved tube icing removing system, which comprises a curved tube icing removing device 1, a pressure detection unit 200 and a control unit. The pressure detecting unit 200 is disposed on the curved pipe 10 at the upstream of the curved pipe ice removing device 1 along the oil-gas direction in the curved pipe 10, and specifically, the pressure detecting unit 200 is preferably a pressure sensor. The control unit is connected with the pressure detection unit 200 and the curved tube icing removing device 1 respectively, and the control unit is configured to respond to the detection signal of the pressure detection unit 200 and control the curved tube icing removing device 1 to act so as to break the icing at the icing position.

Based on this bent pipe icing clearance system, this embodiment still relates to a bent pipe icing clearance method. Specifically, the method for removing the ice accretion of the curved tube comprises the following steps: firstly, the pressure of oil gas in the curved pipe 10 is obtained by the pressure detection unit 200, then the control unit compares the obtained pressure detection signal with a preset pressure threshold, and if the pressure detection signal is greater than the preset pressure threshold, the control unit controls the curved pipe ice removing device 1 to act so as to break the ice at the ice position. Wherein the preset pressure threshold is the sum of the maximum pressure in the curved tube 10 and a set pressure safety factor.

Specifically, as shown in fig. 3, when the vehicle is running, the pressure P of the oil and gas at the ventilation pipe of the crankcase is monitored through the pressure sensor, then the control unit compares the acquired pressure P of the oil and gas with a preset pressure threshold value P0, and transmits the comparison result to the control unit, and the control unit judges whether to start the device 1 for removing the ice on the crank pipe.

The preset pressure threshold P0 in this embodiment is the sum of the maximum pressure Δ P in the crank pipe 10 and a set pressure safety factor t, that is, P0 ═ Δ P + t, where the maximum pressure Δ P in the crank pipe 10 is related to the specification of the selected engine, the maximum pressures in the crank pipe 10 are different for different engines, and the set pressure safety factor t is preferably 1 kPa.

For convenience of description, in this embodiment, two ends of the slide 100 in fig. 2 are defined as a top dead center and a bottom dead center, where the top dead center is an end close to the first motor 101, and the bottom dead center is an end close to the free end of the screw 102. The default state is that oil gas in the curved pipe 10 enters the air filtering air pipe 20 through a central hole formed on the ice crushing rod 108, and the pipeline in the curved pipe 10 is kept smooth.

When the oil gas pressure P detected by the pressure detection unit 200 is less than or equal to P0, the signal received by the control unit is 0, the crankcase ventilation pipe and the air filtering air pipe 20 are not blocked, and at the moment, the vehicle runs normally. When the oil gas pressure P monitored by the pressure detection unit 200 is greater than P0, the control unit receives a signal of 1, the crankcase ventilation pipe and the air filtering air pipe 20 are blocked, the control unit sends a signal for starting the curved pipe freezing clearing device 1 at the moment, the second motor 105 is started first, and the driven bevel gear 107 is driven to rotate through the driving bevel gear 106, so that the ice crushing rod 108 rotates. Wherein the ice crushing lever 108 is operated from the top dead center by default.

After the ice crushing rod 108 works for 5 seconds, the first motor 101 is started to work, the screw sleeve 103 is driven to perform linear motion towards the bottom dead center along the axis of the screw sleeve 102 through the rotation of the screw sleeve 102, the protection box 104 fixedly connected with the screw sleeve 103 also moves towards the bottom dead center, and at the moment, the blocked ice is holed and crushed through the rotation and the movement of the ice crushing rod 108, so that the air ventilation in the curved through pipe 10 is smooth.

The operation cycle of the device 1 for removing ice from the curved tube of the present embodiment is stopped after defaulting two strokes of the ice crushing portion, then the pressure in the curved tube 10 is continuously detected by the pressure detecting unit 200, and the start and stop of the device 1 for removing ice from the curved tube are controlled by the control unit, wherein the single stroke of the ice crushing portion is top dead center-bottom dead center-top dead center. And after the two strokes of the operation of the curved tube ice removing system are stopped, if the oil gas pressure P is in a specified range, the system stops operating, otherwise, the curved tube ice removing system continues to operate until the oil gas pressure P reaches the specified range.

The system is clear away to the bent pipe icing of this embodiment detects the oil gas pressure in the bent pipe 10 through pressure detecting element 200 to compare through the control unit, and the control unit responds to detecting element's detected signal, control bent pipe icing clearing device 1 open and stop the action, thereby can be to the automatic quick completion cleanness in the bent pipe 10 of department of freezing.

The system and the method for removing the icing of the bent pipe can effectively remove the icing at the joint of the bent pipe 10 and the air filtering air pipe 20 by applying the device 1 for removing the icing of the bent pipe in the embodiment I, and can automatically and quickly break the icing, so that a pipeline in the bent pipe 10 is smooth, the normal work of an engine and the normal running of a vehicle are ensured, and a better using effect is achieved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.

Claims

1. The utility model provides a bent pipe freezes clearing device which characterized in that includes:

the ice crushing part is arranged in the curved through pipe (10) in a sliding manner, and a passage for crankcase gas to pass through is arranged in the ice crushing part or between the ice crushing part and the curved through pipe (10);

2. The apparatus according to claim 1, wherein: the straight line drive division is located bent pipe (10) outside, in slide (100) have been seted up on bent pipe (10), garrulous ice portion is followed slide (100) remove to the part is visited slide (100) with straight line drive division links to each other, and in be equipped with in slide (100) and seal garrulous ice portion with the sealing in clearance between slide (100).

3. The apparatus according to claim 2, wherein: sealing part is including locating sealing strip (300) in slide (100), sealing strip (300) are for dividing two of arranging both sides and looks butt in, just the trash ice portion is located two between sealing strip (300).

4. The apparatus according to claim 2, wherein: the linear driving part comprises a first motor (101) fixed on the curved pipe (10), a lead screw (102) connected to the first motor (101), and a threaded sleeve (103) in threaded connection with the lead screw (102), and the threaded sleeve (103) is connected with the ice crushing part.

5. The apparatus according to claim 2, wherein: the ice crushing part comprises a protection box (104), an ice crushing rod (108) which is arranged in the protection box (104) and one end of which extends out, and an elastic sealing structure (1041) which wraps the protection box (104) and is in sliding butt joint with the inner wall of the bent pipe (10); the channel is formed in the ice crushing part, and the protective box (104) is extended out of the slide way (100) and connected with the linear driving part.

6. A device for removing frozen ice from a flexible tube according to claim 5, wherein: the elastic sealing structure (1041) is made of rubber.

7. A device for removing frozen ice from a flexible tube according to claim 5, wherein: the channel at least comprises a central hole which is positioned inside the ice crushing rod (108) and is arranged in an axial direction in a penetrating way.

8. The apparatus according to claim 7, wherein: the ice crushing rod (108) is rotatably arranged in the protective box (104), and a rotary driving part for driving the ice crushing rod (108) to rotate is arranged in the protective box (104).

9. The apparatus according to claim 8, wherein: a driven bevel gear (107) is arranged on the ice crushing rod (108), the rotary driving part comprises a second motor (105) arranged in the protective box (104) and a driving bevel gear (106) connected to the second motor (105), and the driving bevel gear (106) is meshed with the driven bevel gear (107).

10. A bent pipe icing removing system is characterized by comprising:

the device (1) for removing ice from a labyrinth tube according to any of claims 1 to 9;

the pressure detection unit (200) is arranged on the curved pipe (10) at the upstream of the curved pipe freezing clearing device (1) along the direction of oil and gas in the curved pipe (10);

the control unit is connected with the pressure detection unit (200) and the curved pipe freezing removal device (1) respectively, and the control unit is configured to respond to the detection signal of the pressure detection unit (200) and control the action of the curved pipe freezing removal device (1) so as to break the freezing at the freezing position.

11. A crankshaft tube icing cleaning method, characterized in that the crankshaft tube (10) icing cleaning method is based on the crankshaft tube icing cleaning system of claim 10 and comprises:

acquiring oil gas pressure in the curved pipe (10) through a pressure detection unit (200);

the control unit compares the acquired pressure detection signal with a preset pressure threshold value, and controls the action of the curved tube icing removing device (1) to break the icing at the icing position if the pressure detection signal is greater than the preset pressure threshold value.

12. The method for removing ice accretions in a labyrinth tube as recited in claim 11, wherein: the preset pressure threshold value is the sum of the maximum pressure in the curved pipe (10) and a set pressure safety coefficient.