阅读说明：本技术 一种降低液力缓速器噪音和空损的叶片结构 (Blade structure for reducing noise and air loss of hydraulic retarder ) 是由 赵鑫 赵小宇 殷楠 赵甜甜 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种降低液力缓速器噪音和空损的叶片结构,包括定子和转子,所述定子位于转子的一侧,所述定子与转子的内侧设置有叶片,所述定子和转子中的叶片均呈圆形阵列设置,所述叶片的一端边缘处固定有锯齿条,所述锯齿条上开设有齿槽；本发明通过设计的锯齿条,锯齿条安装在叶片上,进而实现通过改变转子和定子叶片齿形,起到降噪减阻的效果,通过设计的齿槽,锯齿条上的齿槽为正弦波波动设置,进而保证锯齿条对转子和定子的工作腔内涡流强度进行改变,能够有效的降低液力缓速器的噪音,减少了液力缓速器噪音对驾驶员的干扰,提高了行车安全性,同时降低了对周围环境的噪音污染,具有良好的社会效益。(The invention discloses a blade structure for reducing noise and hollow loss of a hydrodynamic retarder, which comprises a stator and a rotor, wherein the stator is positioned at one side of the rotor, blades are arranged at the inner sides of the stator and the rotor, the blades in the stator and the rotor are arranged in a circular array, a sawtooth strip is fixed at the edge of one end of each blade, and a tooth socket is formed in the sawtooth strip; according to the invention, through the designed sawtooth racks, the sawtooth racks are arranged on the blades, so that the noise reduction and resistance reduction effects are achieved by changing the tooth shapes of the rotor and the stator blades, and through the designed tooth grooves, the tooth grooves on the sawtooth racks are in sine wave fluctuation arrangement, so that the change of the vortex intensity in the working cavities of the rotor and the stator by the sawtooth racks is ensured, the noise of the hydraulic retarder can be effectively reduced, the interference of the noise of the hydraulic retarder on a driver is reduced, the driving safety is improved, meanwhile, the noise pollution to the surrounding environment is reduced, and good social benefits are achieved.)

1. The utility model provides a reduce blade structure of hydrodynamic retarder noise and empty loss, includes stator (1) and rotor (2), its characterized in that: stator (1) is located one side of rotor (2), stator (1) is provided with blade (3) with the inboard of rotor (2), blade (3) in stator (1) and rotor (2) all are circular array setting, the one end edge of blade (3) is fixed with sawtooth rack (4), the tooth's socket has been seted up on sawtooth rack (4), the tooth's socket is half sine wave fluctuation on being located sawtooth rack (4), be fixed with three installation curb plate (6) on the outer wall of rotor (2), just three installation curb plate (6) be circular array about rotor (2) the central axis.

2. A blade structure for reducing noise and idle loss of a hydrodynamic retarder according to claim 1, wherein: the width of the tooth grooves on the sawtooth racks (4) is 20% -50% of the height of the tooth grooves, and the height of the tooth grooves is 7 mm.

3. A blade structure for reducing noise and idle loss of a hydrodynamic retarder according to claim 1, wherein: mounting hole (5) have been seted up on the surface of installation curb plate (6), mounting groove (9) have been seted up to a port department of mounting hole (5), the inside symmetry of mounting groove (9) is provided with and supports board (11), the one end surface symmetry of supporting board (11) is fixed with erection column (7), the outside cover of one end of erection column (7) is equipped with installation section of thick bamboo (10), installation section of thick bamboo (10) are fixed on the lateral wall of mounting groove (9), the one end of erection column (7) is provided with extrusion spring (13), extrusion spring (13) are located the inside of installation section of thick bamboo (10).

4. A blade structure for reducing noise and idle loss of a hydrodynamic retarder according to claim 4, characterized in that: the outer wall of the mounting column (7) is provided with a rectangular limiting hole, a limiting column penetrates through the rectangular limiting hole, and the limiting column is fixed inside the mounting cylinder (10).

5. A blade structure for reducing noise and idle loss of a hydrodynamic retarder according to claim 4, characterized in that: the other end face of the supporting plate (11) is provided with an inclined plane (12) with a certain inclination, and the inclined plane (12) is adjacent to one port of the mounting hole (5).

6. A blade structure for reducing noise and idle loss of a hydrodynamic retarder according to claim 5, characterized in that: the other end of the supporting plate (11) is fixed with a self-lubricating plate (8), and the cross section of the self-lubricating plate (8) is of an arc-shaped structure.

Technical Field

The invention belongs to the technical field of hydraulic retarber, and particularly relates to a blade structure for reducing noise and air loss of a hydraulic retarder.

Background

In recent years, a hydraulic retarder is gradually popularized and used in the fields of road transport vehicles, passenger cars and mining vehicles, noise pollution is more and more emphasized along with the rapid development of social economy, but when the hydraulic retarder works, compressed air is introduced into an oil pool shell, so that oil enters a working cavity and is stirred at high speed, and larger noise is generated; meanwhile, the input end of the hydraulic retarder and the output end of the gearbox are in a normally meshed state, and in the running process of the vehicle, due to meshing transmission of gears, a rotor of the hydraulic retarder always rotates at a high speed, energy loss can be generated in the normal running and climbing processes, and the oil consumption of the whole vehicle is increased.

At present, no good solution exists for the noise of the hydraulic retarder under the action of the blades of the stator and the rotor, the noise value of the hydraulic retarder under the working condition of the maximum braking torque exceeds 120dB, great noise trouble is brought to a vehicle driver and residents around a road, and negative effects are generated on the construction and development of a green and environment-friendly society.

Disclosure of Invention

The invention aims to provide a blade structure for reducing noise and idle loss of a hydraulic retarder, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a reduce blade structure of hydraulic retarber noise and empty loss, includes stator and rotor, the stator is located one side of rotor, the stator is provided with the blade with the inboard of rotor, the blade in stator and the rotor all is circular array setting, the one end edge of blade is fixed with sawtooth rack, the tooth's socket has been seted up on the sawtooth rack, the tooth's socket is half sine wave fluctuation on being located the sawtooth rack, be fixed with three installation curb plate on the outer wall of rotor, just three installation curb plate be circular array about rotor the central axis.

Preferably, the width of the tooth grooves on the sawtooth racks is 20% -50% of the height of the tooth grooves, and the height of the tooth grooves is 7 mm.

Preferably, the surface of the mounting side plate is provided with a mounting hole, a mounting groove is formed in one port of the mounting hole, supporting plates are symmetrically arranged inside the mounting groove, mounting columns are symmetrically fixed to the surface of one end of each supporting plate, a mounting cylinder is sleeved outside one end of each mounting column and fixed to the side wall of the mounting groove, an extrusion spring is arranged at one end of each mounting column and located inside the corresponding mounting cylinder.

Preferably, the outer wall of the mounting column is provided with a rectangular limiting hole, a limiting column penetrates through the rectangular limiting hole, and the limiting column is fixed inside the mounting cylinder.

Preferably, the other end face of the supporting plate is provided with an inclined plane with a certain inclination, and the inclined plane is adjacent to one port of the mounting hole.

Preferably, a self-lubricating plate is fixed to the other end of the supporting plate, and the cross section of the self-lubricating plate is of an arc-shaped structure.

Compared with the prior art, the invention has the beneficial effects that:

(1) through the sawtooth rack of design, the sawtooth rack is installed on the blade, and then realize through changing rotor and stator blade profile of tooth, play the effect of falling the drag reduction of making an uproar, through the tooth's socket of design, the tooth's socket on the sawtooth rack is the undulant setting of sine wave, and then guarantee that the sawtooth rack changes rotor and stator's work intracavity vortex intensity, the noise that can effectual reduction hydraulic retarber, the interference of hydraulic retarber noise to the driver has been reduced, driving safety has been improved, the noise pollution to the surrounding environment has been reduced simultaneously, good social has.

(2) Through the designed installation groove, when the supporting plate is installed on the installation side plate, the highest end face and the end face of the installation side plate are parallel and level to play a role of avoiding influencing the installation of the supporting plate, the supporting plate is driven by the extrusion spring to extrude and support the inner bolt in the installation hole by pushing the installation column, so that the bolt is positioned in the center position in the hole, the situation that the bolt penetrates through the installation hole in the assembly process and is positioned in a certain offset state in the installation hole to cause poor hole aligning effect and influence the assembly efficiency and accuracy is avoided, through the designed inclined plane, the inclined plane is extruded by one end face of the bolt to generate a pushing action force, one end of the bolt slides and is staggered from the installation hole, the bolt assembly is prevented from being hindered, and the lubricating and wear-resisting effects are played through the designed self-lubricating plate.

Drawings

FIG. 1 is a schematic view of the assembly of a stator and rotor of the present invention;

FIG. 2 is a schematic view of an assembled structure of a rotor and a blade according to the present invention;

FIG. 3 is a bottom view of a partial structure of the mounting side plate of the present invention;

FIG. 4 is a schematic structural view of the buttress plate of the present invention;

FIG. 5 is an assembled cross-sectional view of the mounting cartridge and mounting post of the present invention;

in the figure: 1. a stator; 2. a rotor; 3. a blade; 4. a sawtooth strip; 5. mounting holes; 6. installing a side plate; 7. mounting a column; 8. a self-lubricating plate; 9. installing a groove; 10. mounting the cylinder; 11. a support plate; 12. a bevel; 13. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 5, the present invention provides a technical solution: a blade structure for reducing noise and idle loss of a hydraulic retarder comprises a stator 1 and a rotor 2, wherein the stator 1 is positioned on one side of the rotor 2, blades 3 are arranged on the inner sides of the stator 1 and the rotor 2, the blades 3 in the stator 1 and the rotor 2 are arranged in a circular array, a sawtooth rack 4 is fixed at one end edge of each blade 3, the sawtooth rack 4 is arranged on each blade 3 through the designed sawtooth rack 4, further, the effect of noise reduction and drag reduction is achieved by changing the tooth shapes of the blades of the rotor 2 and the stator 1, a tooth space is formed in each sawtooth rack 4, the tooth space is positioned on each sawtooth rack 4 and is in half sine wave fluctuation, the tooth space on each sawtooth rack 4 is in sine wave fluctuation arrangement through the designed tooth space, further, the fact that the sawtooth rack 4 changes the vortex intensity in working cavities of the rotor 2 and the stator 1 is guaranteed, the noise of the hydraulic retarder can be effectively reduced, and the interference of the noise of the hydraulic retarder to a driver is reduced, the driving safety is improved, noise pollution to the surrounding environment is reduced, good social benefits are achieved, the three mounting side plates 6 are fixed on the outer wall of the rotor 2, the three mounting side plates 6 are in a circular array relative to the central axis of the rotor 2, the width of the tooth grooves in the sawtooth racks 4 is 20% of the tooth groove height, and the tooth groove height is 7 mm.

In the embodiment, preferably, the surface of the installation side plate 6 is provided with an installation hole 5, one port of the installation hole 5 is provided with an installation groove 9, and by means of the designed installation groove 9, when the supporting plate 11 is installed on the installation side plate 6, the highest end surface is flush with the end surface of the installation side plate 6, so as to play a role of avoiding and avoiding influencing the installation of the installation side plate, the supporting plate 11 is symmetrically arranged inside the installation groove 9, the surface of one end of the supporting plate 11 is symmetrically fixed with the installation column 7, the outside of one end of the installation column 7 is sleeved with the installation cylinder 10, the installation cylinder 10 is fixed on the side wall of the installation groove 9, one end of the installation column 7 is provided with the extrusion spring 13, and by means of the designed extrusion spring 13 and the supporting plate 11, the extrusion spring 13 drives the supporting plate 11 to extrude and support the internal bolt in the installation hole 5 by pushing the installation column 7, so as to enable the bolt to be in the center position in the hole, avoid taking place the bolt in its equipment and passing mounting hole 5 after, be located certain skew state in mounting hole 5, lead to it to the hole effect not good, influence packaging efficiency and accurate nature, extrusion spring 13 is located the inside of an installation section of thick bamboo 10.

In this embodiment, it is preferred, the spacing hole of rectangle has been seted up to the outer wall of erection column 7, the inside in the spacing hole of rectangle runs through there is spacing post, spacing post is fixed in the inside of installation section of thick bamboo 10, another terminal surface of support board 11 is provided with the inclined plane 12 that is certain inclination, inclined plane 12 through the design, inclined plane 12 receives the extrusion of a bolt terminal surface, produce the impetus, make its one end from the inside sideslip of mounting hole 5 stagger, avoid it to hinder the bolt equipment, inclined plane 12 is adjacent with a port of mounting hole 5, the other end of support board 11 is fixed with self-lubricating plate 8, self-lubricating plate 8 through the design, play lubricated abrasionproof and damage effect, self-lubricating plate 8's cross section is the arc structure.

Example 2

Referring to fig. 1 to 5, the present invention provides a technical solution: a blade structure for reducing noise and idle loss of a hydraulic retarder comprises a stator 1 and a rotor 2, wherein the stator 1 is positioned on one side of the rotor 2, blades 3 are arranged on the inner sides of the stator 1 and the rotor 2, the blades 3 in the stator 1 and the rotor 2 are arranged in a circular array, a sawtooth rack 4 is fixed at one end edge of each blade 3, the sawtooth rack 4 is arranged on each blade 3 through the designed sawtooth rack 4, further, the effect of noise reduction and drag reduction is achieved by changing the tooth shapes of the blades of the rotor 2 and the stator 1, a tooth space is formed in each sawtooth rack 4, the tooth space is positioned on each sawtooth rack 4 and is in half sine wave fluctuation, the tooth space on each sawtooth rack 4 is in sine wave fluctuation arrangement through the designed tooth space, further, the fact that the sawtooth rack 4 changes the vortex intensity in working cavities of the rotor 2 and the stator 1 is guaranteed, the noise of the hydraulic retarder can be effectively reduced, and the interference of the noise of the hydraulic retarder to a driver is reduced, the driving safety is improved, noise pollution to the surrounding environment is reduced, good social benefits are achieved, the three mounting side plates 6 are fixed on the outer wall of the rotor 2, the three mounting side plates 6 are in a circular array relative to the central axis of the rotor 2, the width of the tooth grooves in the sawtooth racks 4 is 35% of the tooth groove height, and the tooth groove height is 7 mm.

In the embodiment, preferably, the surface of the installation side plate 6 is provided with an installation hole 5, one port of the installation hole 5 is provided with an installation groove 9, and by means of the designed installation groove 9, when the supporting plate 11 is installed on the installation side plate 6, the highest end surface is flush with the end surface of the installation side plate 6, so as to play a role of avoiding and avoiding influencing the installation of the installation side plate, the supporting plate 11 is symmetrically arranged inside the installation groove 9, the surface of one end of the supporting plate 11 is symmetrically fixed with the installation column 7, the outside of one end of the installation column 7 is sleeved with the installation cylinder 10, the installation cylinder 10 is fixed on the side wall of the installation groove 9, one end of the installation column 7 is provided with the extrusion spring 13, and by means of the designed extrusion spring 13 and the supporting plate 11, the extrusion spring 13 drives the supporting plate 11 to extrude and support the internal bolt in the installation hole 5 by pushing the installation column 7, so as to enable the bolt to be in the center position in the hole, avoid taking place the bolt in its equipment and passing mounting hole 5 after, be located certain skew state in mounting hole 5, lead to it to the hole effect not good, influence packaging efficiency and accurate nature, extrusion spring 13 is located the inside of an installation section of thick bamboo 10.

In this embodiment, it is preferred, the spacing hole of rectangle has been seted up to the outer wall of erection column 7, the inside in the spacing hole of rectangle runs through there is spacing post, spacing post is fixed in the inside of installation section of thick bamboo 10, another terminal surface of support board 11 is provided with the inclined plane 12 that is certain inclination, inclined plane 12 through the design, inclined plane 12 receives the extrusion of a bolt terminal surface, produce the impetus, make its one end from the inside sideslip of mounting hole 5 stagger, avoid it to hinder the bolt equipment, inclined plane 12 is adjacent with a port of mounting hole 5, the other end of support board 11 is fixed with self-lubricating plate 8, self-lubricating plate 8 through the design, play lubricated abrasionproof and damage effect, self-lubricating plate 8's cross section is the arc structure.

Example 3

Referring to fig. 1 to 5, the present invention provides a technical solution: a blade structure for reducing noise and idle loss of a hydraulic retarder comprises a stator 1 and a rotor 2, wherein the stator 1 is positioned on one side of the rotor 2, blades 3 are arranged on the inner sides of the stator 1 and the rotor 2, the blades 3 in the stator 1 and the rotor 2 are arranged in a circular array, a sawtooth rack 4 is fixed at one end edge of each blade 3, the sawtooth rack 4 is arranged on each blade 3 through the designed sawtooth rack 4, further, the effect of noise reduction and drag reduction is achieved by changing the tooth shapes of the blades of the rotor 2 and the stator 1, a tooth space is formed in each sawtooth rack 4, the tooth space is positioned on each sawtooth rack 4 and is in half sine wave fluctuation, the tooth space on each sawtooth rack 4 is in sine wave fluctuation arrangement through the designed tooth space, further, the fact that the sawtooth rack 4 changes the vortex intensity in working cavities of the rotor 2 and the stator 1 is guaranteed, the noise of the hydraulic retarder can be effectively reduced, and the interference of the noise of the hydraulic retarder to a driver is reduced, the driving safety is improved, noise pollution to the surrounding environment is reduced, good social benefits are achieved, the three mounting side plates 6 are fixed on the outer wall of the rotor 2, the three mounting side plates 6 are in a circular array relative to the central axis of the rotor 2, the width of the tooth grooves in the sawtooth racks 4 is 50% of the tooth groove height, and the tooth groove height is 7 mm.

In the embodiment, preferably, the surface of the installation side plate 6 is provided with an installation hole 5, one port of the installation hole 5 is provided with an installation groove 9, and by means of the designed installation groove 9, when the supporting plate 11 is installed on the installation side plate 6, the highest end surface is flush with the end surface of the installation side plate 6, so as to play a role of avoiding and avoiding influencing the installation of the installation side plate, the supporting plate 11 is symmetrically arranged inside the installation groove 9, the surface of one end of the supporting plate 11 is symmetrically fixed with the installation column 7, the outside of one end of the installation column 7 is sleeved with the installation cylinder 10, the installation cylinder 10 is fixed on the side wall of the installation groove 9, one end of the installation column 7 is provided with the extrusion spring 13, and by means of the designed extrusion spring 13 and the supporting plate 11, the extrusion spring 13 drives the supporting plate 11 to extrude and support the internal bolt in the installation hole 5 by pushing the installation column 7, so as to enable the bolt to be in the center position in the hole, avoid taking place the bolt in its equipment and passing mounting hole 5 after, be located certain skew state in mounting hole 5, lead to it to the hole effect not good, influence packaging efficiency and accurate nature, extrusion spring 13 is located the inside of an installation section of thick bamboo 10.

In this embodiment, it is preferred, the spacing hole of rectangle has been seted up to the outer wall of erection column 7, the inside in the spacing hole of rectangle runs through there is spacing post, spacing post is fixed in the inside of installation section of thick bamboo 10, another terminal surface of support board 11 is provided with the inclined plane 12 that is certain inclination, inclined plane 12 through the design, inclined plane 12 receives the extrusion of a bolt terminal surface, produce the impetus, make its one end from the inside sideslip of mounting hole 5 stagger, avoid it to hinder the bolt equipment, inclined plane 12 is adjacent with a port of mounting hole 5, the other end of support board 11 is fixed with self-lubricating plate 8, self-lubricating plate 8 through the design, play lubricated abrasionproof and damage effect, self-lubricating plate 8's cross section is the arc structure.

The working principle and the using process of the invention are as follows: the invention is characterized in that saw-toothed strip-shaped saw-toothed strips 4 are arranged on blades 3, the height of the saw-toothed strip-shaped saw-toothed strips is changed in a half sine wave manner, so that the tooth sockets on the saw-toothed strips 4 can disturb the flowing state of oil liquid and air flow in a boundary layer, the pressure distribution is changed, the formation of oil liquid or air vortex is changed, large-size regular vortex is scattered into small-size irregular vortex, and simultaneously, the saw teeth cut the vortex, the attenuation of the vortex is accelerated, the intensity and the pressure pulse amplitude of the vortex are reduced, so that low-frequency noise is effectively inhibited, the noise annoyance degree is reduced, and the noise sound power level of the working of a hydraulic retarder can be reduced. The fastening bolt is ensured to pass through the mounting hole 5, at the moment, the extrusion spring 13 applies elastic extrusion to the supporting plates 11, so that the supporting plates 11 positioned at two sides of the fastening bolt apply elastic extrusion alignment to the fastening bolt, the fastening bolt is ensured to be positioned in the mounting hole 5 at the center, and the fastening bolt is ensured not to be positioned in the offset position in the mounting hole 5 to influence the threaded screwing fixation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.