CN114575963B

CN114575963B - Curved pipe icing removing device, system and method

Info

Publication number: CN114575963B
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: 2023-05-02
Anticipated expiration: 2041-02-19
Also published as: CN114575963A

Abstract

The invention provides a curved pipe icing removing device, a removing system and a removing method, wherein the curved pipe icing removing device comprises an ice crushing part and a linear driving part, wherein the ice crushing part is slidably arranged in Qu Tongguan, a passage for crankcase gas to pass through is arranged in the ice crushing part or between the ice crushing part and the curved pipe, and the linear driving part is in transmission connection with the ice crushing part and is driven by the linear driving part, so that the ice crushing part can linearly move towards an icing position to crush icing. The curved pipe icing removing device can effectively break and freeze the icing position, so that the inner pipe of the curved pipe is smooth, the power output failure of the engine caused by icing blockage in a low-temperature environment can be effectively prevented, the normal running of a vehicle is ensured, and the curved pipe icing removing device has a good use effect.

Description

Curved pipe icing removing device, system and method

Technical Field

The invention relates to the technical field, in particular to a curved pipe icing removing device. In addition, the invention also relates to a curved tube icing removal system provided with the curved tube icing removal device. Meanwhile, the invention also relates to a curved tube icing cleaning method based on the cleaning system.

Background

With the development of economy, the living standard of people is continuously improved, and automobiles are driven into thousands of families. The region of China is wide, the temperature difference between the north and south is extremely large, and the temperature in northeast and northwest regions is often lower than-30 ℃. Under the natural environment, the interface of the crankcase ventilation pipe and the engine air inlet pipe of the fuel vehicle, namely the interface of the crankcase ventilation pipe and the air filtering air pipe, is easy to freeze and block, so that the pressure of the crankcase is increased, and the oil seal can fall off to cause oil leakage or cause the problems of engine oil emulsification and the like when serious, thereby seriously affecting the normal use of the engine and the normal running of the vehicle.

Most vehicles in the current market have no positive countermeasures to the problem of freezing of the curved pipe, and in the prior art, although some devices for preventing the curved pipe from freezing are complex in structural design, high in energy consumption and unsatisfactory in use effect. Therefore, development of a curved pipe icing removal device, a curved pipe icing removal system and a curved pipe icing removal method is urgently needed, so that icing at a curved pipe can be automatically and rapidly removed, and normal running of a vehicle is guaranteed.

Disclosure of Invention

In view of the above, the present invention is directed to an icing removing device for a curved tube, so as to remove the icing at the joint of the curved tube and the air filtering air tube, and to make the inner tube of the curved tube smooth.

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

a curved tube ice removal device comprising:

an ice crushing part which is arranged in Qu Tongguan in a sliding way, and a passage for passing crankcase gas is arranged in the ice crushing part or between the ice crushing part and the bent pipe;

the linear driving part is in transmission connection with the ice crushing part and is driven by the linear driving part, and the ice crushing part can linearly move towards the icing position to crush ice.

Further, the linear driving part is located at the outer side of Qu Tongguan, a slide way is formed in the curved pipe, the ice crushing part moves along the slide way and partially protrudes out of the slide way to be connected with the linear driving part, and a sealing part for sealing a gap between the ice crushing part and the slide way is arranged in the slide way.

Further, the sealing part comprises sealing strips arranged in the slide ways, the sealing strips are two strips which are respectively arranged at two sides and are abutted against each other, and the ice crushing part is clamped between the two sealing strips.

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

Further, 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 abutting connection with the inner wall of the Qu Tongguan; the channel is formed in the ice crushing part, and the protection box extends out of the slideway and is connected with the linear driving part.

Further, the elastic sealing structure adopts rubber.

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

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

Further, a driven bevel gear is arranged on the ice crushing rod, the rotary driving part comprises a second motor arranged in the protection 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 curved pipe icing removal device, through the ice crushing part and the linear driving part, the ice crushing rod in the ice crushing part can simultaneously rotate and move along the slideway, so that ice cubes at the icing position can be effectively crushed, the inner pipeline of the curved pipe is smooth, the failure of power output of an engine caused by icing blockage in a low-temperature environment can be effectively prevented, normal running of a vehicle is ensured, and meanwhile, the curved pipe icing removal device has a good use effect.

Furthermore, another object of the present invention is to provide a system for cleaning ice from a curved tube, comprising:

the curved tube ice removing device as described above;

the pressure detection unit is arranged on the curved pipe along the direction of oil gas in the curved pipe and upstream of the Qu Tongguan icing and removing device;

and the control unit is respectively connected with the pressure detection unit and the Qu Tongguan icing removing device and is configured to respond to the detection signal of the pressure detection unit so as to control the Qu Tongguan icing removing device to act so as to break up the icing at the icing position.

Meanwhile, the invention also provides a method for removing the icing of the curved pipe, wherein the Qu Tongguan icing removing method is based on the system for removing the icing of the curved pipe and comprises the following steps:

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

the control unit compares the obtained pressure detection signal with a preset pressure threshold, and controls the Qu Tongguan icing removal device to act so as to break the icing at the icing position if the pressure detection signal is greater than the preset pressure threshold.

Further, the preset pressure threshold is the sum of the maximum pressure in the curved tube and the set pressure safety coefficient.

The curved tube icing removal system and the curved tube icing removal method have the same beneficial effects as the curved tube icing removal device described above relative to the prior art, and are not described in detail herein.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 is a schematic view of a structure of a curved pipe ice removing device without a sealing cover according to an embodiment of the invention;

FIG. 2 is a schematic diagram illustrating an internal structure of a curved pipe ice removing device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating the operation of a curved pipe ice cleaning system according to a second embodiment of the present invention;

reference numerals illustrate:

1. a curved pipe icing removing device; 100. a slideway; 101. a first motor; 102. a screw rod; 103. a screw 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 curved tube; 20. the trachea is filtered off.

Detailed Description

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

In the description of the present invention, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be 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. In addition, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in combination with specific cases.

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

Example 1

The embodiment relates to a curved pipe icing removal device, which mainly comprises an ice crushing part and a linear driving part on the whole, wherein the ice crushing part is slidably arranged in Qu Tongguan and a passage for passing crankcase gas is arranged inside the ice crushing part or between the ice crushing part and the curved pipe, and the linear driving part is in transmission connection with the ice crushing part and is driven by the linear driving part, so that the ice crushing part can linearly move towards an icing position to crush icing.

The curved pipe icing removal device can break and freeze the icing position, so that the inner pipeline of the curved pipe is smooth, and further the failure of power output of an engine caused by icing blockage in a low-temperature environment can be effectively prevented, and normal running of a vehicle is ensured.

Based on the above design concept, an exemplary structure of the curved tube icing removing apparatus 1 of the present embodiment is shown in fig. 1 and 2, where, as described above, the ice crushing portion of the present embodiment is slidably disposed in the curved tube 10, the linear driving portion is in transmission connection with the ice crushing portion, and the ice crushing portion can move linearly toward the icing position, that is, toward the joint of the curved tube 10 and the air filtering air pipe 20 under the driving of the linear driving portion, so as to crush and freeze.

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

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

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

In order to improve the sealing property of the inside of the curved pipe 10, a sealing portion for sealing the 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 a sealing strip 300 disposed in the slide way 100, the sealing strip 300 is two strips disposed on two sides and abutted against each other, and the crushed ice portion is clamped between the two sealing strips 300, so as to prevent excessive leakage of oil gas flowing through the inside of the curved tube 10.

In order to further prevent the oil gas flowing through the curved tube 10 from leaking, in this embodiment, a sealing cover 109 is detachably connected to the curved tube 10, and a sealing space is formed inside the sealing cover 109, and the linear driving portion and the sliding way 100 are disposed in the sealing space. The sealing cover 109 may be formed by buckling an upper casing and a lower casing, which have semicircular longitudinal sections, and a sealing gasket may be disposed between the upper casing and the lower casing, so that a cavity formed by the upper casing and the lower casing forms a sealing space, thereby effectively preventing oil gas flowing through the curved pipe 10 from leaking.

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 out, and an elastic sealing structure 1041 wrapping the protection box 104 and slidably abutting against the inner wall of the curved pipe 10. The elastic sealing structure 1041 is preferably made of rubber, and the elastic sealing structure 1041 cooperates with the sealing strip 300, so as to greatly improve the sealing effect between the protection box 104 and the curved tube 10.

In addition, the above-mentioned passage through which the crankcase gas passes is formed in the crushed ice portion, specifically, as shown in fig. 2, the passage includes at least a central hole disposed inside the crushed ice rod 108 and penetrating axially, so that the oil gas in the curved pipe 10 can flow in the arrow direction in fig. 2.

In addition, the space between the inside of the sealing cap 109 and the outer wall of the covered crankcase tube 10, i.e. the crushed ice and the crankcase tube 10, also forms part of the passage for crankcase gas.

In this embodiment, the protection box 104 protrudes from the slideway 100 and is connected with the linear driving part, so that the protection box 104 can move along the slideway 100 under the driving of the linear driving part. Specifically, one end of the protection box 104 is fixedly connected to the screw sleeve 103, and the protection box 104 is driven to linearly move along the slideway 100 along with the linear movement of the screw sleeve 103 along the screw 102.

To further enhance the effect of crushing ice at the frozen site, in this embodiment, the crushing ice lever 108 is rotatably disposed in the protective case 104. To achieve the rotation of the ice crushing lever 108, as shown in fig. 2, a rotation driving part is provided in the protection box 104 to drive the ice crushing lever 108 to rotate. Specifically, the driven bevel gear 107 is arranged on the ice crushing rod 108, the rotary driving part comprises a second motor 105 arranged in the protection box 104 and a drive bevel gear 106 connected to the second motor 105, and the drive bevel gear 106 is meshed with the driven bevel gear 107, so that the drive bevel gear 106 rotates under the driving of the second motor 105 and drives the driven bevel gear 107 to rotate, thereby driving the ice crushing rod 108 to rotate, and further improving the ice crushing effect.

In this embodiment, through the rotation of second motor 105 and initiative taper gear 106 and driven bevel gear 107 that set up realization hack ice pole 108, this structure is comparatively simple, and the structural arrangement of being convenient for just can save the arrangement space for curved tube icing clearing device 1 is lighter and more portable. In addition, it should be noted that, in addition to the above-mentioned structural form, the rotation driving portion of the present embodiment may also adopt a rotation motor to drive the spur gear for meshing transmission, or a rotation motor to drive the transmission belt for transmission to realize the rotation of the ice crushing rod 108.

When the curved pipe ice removing device 1 of the embodiment works, firstly, the second motor 105 drives the ice crushing rod 108 to rotate, then, the first motor 101 drives the protection box 104 to linearly move along the slideway 100 and drives the ice crushing rod 108 to linearly move along sliding along the rotating direction, so that ice at the ice crushing position can be crushed, and the crushed ice slag through the ice crushing rod 108 enters the combustion chamber to burn along with the flow of the oil gas flow, so that the inner pipeline of the curved pipe 10 is smooth. And, through the control start-stop to first motor 101 and second motor 105, can realize the breakage to icing department fast automatically.

The device 1 for removing ice from the curved tube can effectively remove ice from the joint of the curved tube 10 and the air filtering air tube 20, so that the inner tube of the curved tube 10 is smooth, and further, the failure of power output of the engine caused by ice blockage at the joint of the crankcase ventilation tube and the air outlet tube of the air filter in a low-temperature environment can be effectively prevented, the normal operation of the engine and the normal running of a vehicle are ensured, and the device has a better use effect.

Example two

The present embodiment relates to a crank icing removal system, which includes the crank icing removal device 1, the pressure detection unit 200 and the control unit described in embodiment one. The pressure detecting unit 200 is preferably a pressure sensor, and is disposed on the curved tube 10 along the oil gas direction in the curved tube 10 upstream of the Qu Tongguan ice removing device 1. The control unit is connected to the pressure detecting unit 200 and the crank icing removing device 1, and is configured to respond to the detecting signal of the pressure detecting unit 200, and can control the crank icing removing device 1 to act so as to break up the icing at the icing position.

Based on the curved tube icing removal system, the embodiment also relates to a curved tube icing removal method. Specifically, the method for removing the freezing of the curved pipe comprises the following steps: firstly, the oil gas pressure in the curved tube 10 is obtained through the pressure detection unit 200, then the control unit compares the obtained pressure detection signal with a preset pressure threshold value, and if the pressure detection signal is greater than the preset pressure threshold value, the curved tube ice removing device 1 is controlled to act so as to break ice at the ice position. The preset pressure threshold is the sum of the maximum pressure in the curved tube 10 and the set pressure safety coefficient.

Specifically, as shown in fig. 3, when the vehicle is running, the oil-gas pressure P at the crankcase ventilation pipe is monitored by the pressure sensor, and then the oil-gas pressure P obtained by the control unit is compared with a preset pressure threshold value P0, and the comparison result is transmitted to the control unit, which determines whether to activate the crank pipe ice cleaning device 1.

The preset pressure threshold P0 in the present embodiment is the sum of the maximum pressure Δp in the crank tube 10 and the set pressure safety coefficient t, that is, p0=Δp+t, where the maximum pressure Δp in the crank tube 10 is related to the specification of the selected engine, the maximum pressures in the crank tube 10 corresponding to different engines are different, and the set pressure safety coefficient t is preferably 1kPa.

In this embodiment, for convenience of description, two ends of the slide way 100 in fig. 2 are defined as a top dead center and a bottom dead center, wherein the top dead center is an end near the first motor 101, and the bottom dead center is an end near the free end of the screw 102. The default state is that the oil gas in the curved tube 10 enters the air filtering air tube 20 through the central hole formed on the ice crushing rod 108, and the pipeline in the curved tube 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 control unit receives a signal of 0, and the crankcase ventilation pipe and the air filtering air pipe 20 are not blocked, so that 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 crank pipe icing removal device 1, at this time, 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 operates by default from top dead center.

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 linearly move along the axis of the screw rod 102 to the bottom dead center by the rotation of the screw rod 102, the protection box 104 fixedly connected with the screw sleeve 103 also moves to the bottom dead center, at the moment, the blocked ice is perforated and crushed by the movement of the ice crushing rod 108 while rotating, and accordingly ventilation in the curved pipe 10 is smooth.

The working cycle of the crank icing removal device 1 of the present embodiment is stopped after two strokes of the default ice crushing portion, then the pressure detection unit 200 continues to detect the pressure in the crank 10, and the control unit controls the start and stop actions of the crank icing removal device 1, wherein the single stroke of the ice crushing portion is top dead center-bottom dead center-top dead center. When the two strokes of the crank pipe icing and cleaning system are stopped, if the oil gas pressure P is in a specified range, the system stops running, otherwise, the crank pipe icing and cleaning system continues to run until the oil gas pressure P reaches the specified range.

The crank icing removal system of the embodiment detects the oil gas pressure in the crank 10 through the pressure detection unit 200, compares the oil gas pressure with the oil gas pressure through the control unit, and controls the start-stop action of the crank icing removal device 1 in response to the detection signal of the detection unit by the control unit, so that the icing position in the crank 10 can be automatically and quickly cleaned.

According to the curved pipe icing removal system and the curved pipe icing removal method, by applying the curved pipe icing removal device 1 in the first embodiment, icing at the joint of the curved pipe 10 and the air filtering air pipe 20 can be effectively removed, and the icing can be automatically and quickly broken, so that the inner pipe of the curved pipe 10 is smooth, normal operation of an engine and normal running of a vehicle are ensured, and a good use effect is achieved.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. A curved tube ice removal device, comprising:

an ice crushing part which is arranged in the curved pipe (10) in a sliding way, and a passage for passing crankcase gas is arranged in the ice crushing part or between the ice crushing part and the Qu Tongguan (10);

the linear driving part is in transmission connection with the ice crushing part and is driven by the linear driving part, and the ice crushing part can linearly move towards the icing position to crush icing;

the linear driving part is positioned at the outer side of the Qu Tongguan (10), a slide way (100) is arranged on the Qu Tongguan (10), the ice crushing part moves along the slide way (100) and partially protrudes out of the slide way (100) to be connected with the linear driving part;

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 abutting connection with the inner wall of the Qu Tongguan (10); the channel is formed in the ice crushing part, and the protective box (104) protrudes out of the slideway (100) and is connected with the linear driving part.

2. The curved tube ice removal device of claim 1, wherein: and a sealing part for sealing a gap between the ice crushing part and the slideway (100) is arranged in the slideway (100).

3. The curved tube ice removal device of claim 2, wherein: the sealing part comprises sealing strips (300) arranged in the slide ways (100), the sealing strips (300) are respectively arranged on two sides and are abutted against each other, and the ice crushing part is clamped between the two sealing strips (300).

4. The curved tube ice removal device of claim 1, wherein: the linear driving part comprises a first motor (101) fixed on the Qu Tongguan (10), a screw rod (102) connected to the first motor (101) and a screw sleeve (103) screwed on the screw rod (102), and the screw sleeve (103) is connected with the ice crushing part.

5. The curved tube ice removal device of claim 1, wherein: the elastic sealing structure (1041) adopts rubber.

6. The curved tube ice removal device of claim 1, wherein: the channel comprises at least a central bore extending axially through the interior of the ice crushing rod (108).

7. The curved tube ice removal device of claim 6, wherein: the ice crushing rod (108) is rotatably arranged in the protection box (104), and a rotary driving part for driving the ice crushing rod (108) to rotate is arranged in the protection box (104).

8. The curved tube ice removal device of claim 7, wherein: the ice crushing rod (108) is provided with a driven bevel gear (107), 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).

9. A curved tube icing removal system comprising:

the curved tube ice removal device (1) according to any one of claims 1 to 8;

the pressure detection unit (200) is arranged on the Qu Tongguan (10) along the oil gas direction in the curved pipe (10) at the upstream of the Qu Tongguan icing removal device (1);

and the control unit is respectively connected with the pressure detection unit (200) and the Qu Tongguan icing removal device (1) and is configured to respond to the detection signal of the pressure detection unit (200) so as to control the Qu Tongguan icing removal device (1) to act so as to break up the icing at the icing position.

10. A method of ice removal from a curved tube, wherein the Qu Tongguan (10) ice removal method is based on the curved tube ice removal system of claim 9, and comprises:

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

the control unit compares the obtained pressure detection signal with a preset pressure threshold value, and controls the Qu Tongguan icing removal device (1) to act so as to break the icing at the icing position if the pressure detection signal is larger than the preset pressure threshold value.

11. The method of crank ice removal according to claim 10, wherein: the preset pressure threshold value is the sum of the maximum pressure in Qu Tongguan (10) and the set pressure safety coefficient.