CN117261859A - Transmission booster device and manufacturing method thereof - Google Patents
Transmission booster device and manufacturing method thereof Download PDFInfo
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- CN117261859A CN117261859A CN202311552865.4A CN202311552865A CN117261859A CN 117261859 A CN117261859 A CN 117261859A CN 202311552865 A CN202311552865 A CN 202311552865A CN 117261859 A CN117261859 A CN 117261859A
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- pawl
- coupler
- shaft coupling
- screw rod
- rubber pad
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 83
- 238000010168 coupling process Methods 0.000 claims abstract description 83
- 238000005859 coupling reaction Methods 0.000 claims abstract description 83
- 239000010985 leather Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/746—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive and mechanical transmission of the braking action
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Transmission Devices (AREA)
Abstract
The application discloses transmission booster device and manufacturing method thereof, this transmission booster device is applicable to braking system, including motor, shaft coupling, ball, anti-rotation sleeve, piston and cylinder body, and the motor further includes casing, bearing, rotor and stator, and the shaft coupling further includes shaft coupling ball socket, shaft coupling taper sleeve, shaft coupling pawl and shaft coupling rubber pad, and ball further includes lead screw, screw and spacing key. By adopting the technical scheme of the application, through increasing flexible connection between the lead screw of ball screw and the motor hollow shaft, the piston can be coaxial with the cylinder body better in the motion process, and the lateral force born by the cylinder body and the leather cup is reduced or eliminated, thereby avoiding abnormal sound and prolonging the service life of the leather cup.
Description
Technical Field
The application relates to the technical field of electric automobiles, in particular to a transmission power assisting device and a manufacturing method thereof.
Background
Under the intelligent motorization background of the automobile, the traditional internal combustion engine is replaced by a motor and a battery, the vacuum source of the whole automobile is lost, the hydraulic pipeline pressure building can not be completed through a vacuum booster, and the vacuum booster pump is not promoted in a large range because of the characteristics of high noise and short service life. The brake-by-wire hydraulic pipeline pressure building is carried out by replacing a vacuum booster with a motor, so that the problem of vacuum source deficiency is effectively solved.
Depending on the implementation of the passenger car brake-by-wire system, the current brake-by-wire systems can be divided into two types, namely, a hydraulic brake-by-wire system (Electro-hydraulic Brake System, EHB) and a mechanical brake-by-wire system (Electro-mechanical Brake System, EMB). The EHB is based on a traditional hydraulic braking system, replaces the functions of part of mechanical parts by electronic devices, uses brake fluid as a power transmission medium, and is provided with a hydraulic backup braking system, so that the EHB is a mainstream technical scheme at present. EHB is divided into Two technical schemes of separation type (Two-box) and integral type (One-box) according to the integration level. The One-box converts the rotation motion of the motor into linear motion mainly through a ball screw.
As shown in FIG. 1, the One-box transmission power assisting mechanism comprises a nut 1, a locking gasket 2, a motor assembly 3, a spring gasket 4, a ball screw 5, a piston 6, a cylinder 7, a main leather cup 8, an auxiliary leather cup 9 and a metal anti-rotation sleeve 10. The motor assembly 3 comprises a shell 3-1, a bearing 3-2, a rotor 3-3, a stator and other parts, and the ball screw 5 comprises a screw nut 5-2, a screw rod 5-1, steel balls, a commutator and a limit key. The assembly relation is that the spring gasket is in clearance fit with the screw rod and sleeved on the screw rod shaft, the screw rod in the ball screw rod is in interference fit with the rotor of the motor, the piston is in interference fit with the screw nut in the ball screw rod, and the ball screw rod is fixed with the motor by the locking gasket and the nut to form the motor assembly. The main leather cup and the auxiliary leather cup are arranged in a leather cup groove of the cylinder body, the metal anti-rotation sleeve and the cylinder body are fixed on the valve block through riveting to form the valve block assembly, the central shaft of the motor assembly is aligned with the central shaft of the cylinder body, and meanwhile, the limit key on the ball screw nut is arranged in the limit groove on the metal anti-rotation sleeve, and the motor assembly is fixed on the valve block through a screw to form the transmission power assisting mechanism.
When the rotor in the motor rotates, the rotor drives the screw rod in the ball screw to rotate, the screw rod rotates, the screw nut moves along with the screw rod, and the screw nut cannot rotate along with the screw nut due to the limiting function of the metal anti-rotation sleeve, can only perform linear motion, and pushes the piston to move, so that brake fluid pressure is generated in the cylinder body.
Because among the prior art scheme, between ball and the motor, between piston and the ball, be rigid connection between cylinder body and the valve piece, cooperate at a plurality of parts of epaxial simultaneously for piston and cylinder body can not realize coaxial well, but if the axiality is not good, after the assembly is accomplished, the piston can have a radial force to leather cup and cylinder body, in the motion process, the piston just can produce the eccentric wear with cylinder body and leather cup, produces abnormal sound, still can gnaw the leather cup owing to leather cup unilateral atress and take the food to influence the life of leather cup.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a transmission device and a manufacturing method thereof, so as to solve at least the above-mentioned technical problems.
In order to achieve the above purpose, the technical scheme of the application is realized as follows:
the embodiment of the application provides a transmission booster device which is suitable for a braking system and comprises a motor, a coupler, a ball screw, an anti-rotation sleeve, a piston and a cylinder body, wherein the motor further comprises a shell, a bearing, a rotor and a stator, the coupler further comprises a coupler ball socket, a coupler taper sleeve, a coupler pawl and a coupler rubber pad, the ball screw further comprises a screw rod, a nut and a limit key, wherein,
one end of the screw rod is provided with a screw rod handle, the other end of the screw rod is provided with a screw rod main body, the screw rod handle is a cylinder with the diameter smaller than that of the screw rod main body, and one end of the screw rod handle, which is far away from the screw rod main body, is a ball head;
the shaft coupling pawl is provided with at least 2 first pawls, the first pawls are connected through a central circular ring, the screw rod handle penetrates through an inner ring formed by the central circular ring of the shaft coupling pawl, and the screw rod handle is connected with the shaft coupling pawl in a riveting mode;
the coupling rubber pad is arranged on the outer ring of the coupling pawl, the cross section of the coupling rubber pad is in a circular shape, the inner diameter of the circular ring is matched with the outer diameter of the central circular ring of the coupling pawl, first pawl grooves with the same number as that of the first pawls of the coupling pawl are arranged on the corresponding position of the inner wall of the coupling rubber pad, and the shape of the first pawl grooves is consistent with that of the first pawls;
the coupler rubber pad is pressed into the coupler taper sleeve in an interference manner, at least 2 second pawl grooves are formed in the outer wall of the coupler rubber pad, the second pawl grooves and the first pawl grooves are alternately formed in the outer wall of the coupler rubber pad, the cross section of one side of the coupler taper sleeve is circular, the circular inner diameter of the coupler taper sleeve is matched with the outer diameter of the coupler rubber pad, second pawls which are the same in number as the second pawl grooves of the coupler rubber pad are arranged at corresponding positions on the inner wall of the coupler taper sleeve, and the shape of each second pawl is identical with that of each second pawl groove;
the coupler ball socket is matched with and connected with the ball head of the screw rod handle in shape, and a swing angle exists between the coupler ball socket and the screw rod handle;
the shaft coupling taper sleeve is connected with the shaft coupling ball socket, and the shaft coupling taper sleeve is connected with the rotor of the motor.
Further, the number of the first pawls is 3, and the number of the second pawl grooves is 3.
Further, the first pawl slot, the second pawl and the second pawl slot are located on the same plane.
Further, the coupler ball socket is connected with the ball head of the screw rod handle in a riveting mode, and the coupler taper sleeve is connected with the coupler ball socket in a riveting mode; the shaft coupling taper sleeve is connected with a rotor of the motor through a locking nut.
Further, the piston is pressed into the ball screw nut, the anti-rotation sleeve and the cylinder body are fixed on the valve block in a riveting mode, and a limit key of the ball screw nut is installed in a limit groove of the anti-rotation sleeve.
Further, the multifunctional cylinder further comprises a main leather cup and an auxiliary leather cup, wherein the main leather cup and the auxiliary leather cup are installed in a leather cup groove of the cylinder body.
Embodiments of the present application also provide a method of manufacturing a transmission assist device, comprising the steps of:
the method comprises the steps that a shaft coupling pawl is riveted on a screw rod of a ball screw to form a first shaft coupling component, wherein the shaft coupling pawl is provided with at least 2 first pawls, the first pawls are connected through a central circular ring, a screw rod handle penetrates through an inner ring formed by the central circular ring of the shaft coupling pawl, and the screw rod handle is connected with the shaft coupling pawl in a riveting mode;
riveting a coupler ball socket with a screw rod ball head in the first coupler part to form a second coupler part, wherein a swing angle exists between the coupler ball socket and the screw rod ball head;
the method comprises the steps that a coupler rubber pad is mounted on a coupler pawl in a second coupler component, the coupler rubber pad is pressed into a coupler taper sleeve in an interference mode, the coupler taper sleeve is riveted with a coupler ball socket to form a third coupler component, the cross section of the coupler rubber pad is in a circular shape, the circular inner diameter of the circular ring is matched with the outer diameter of a central circular ring of the coupler pawl, first pawl grooves with the same number as that of first pawls of the coupler pawl are formed in corresponding positions of the inner wall of the coupler rubber pad, the shape of each first pawl groove is consistent with that of each first pawl, at least 2 second pawl grooves are formed in the outer wall of the coupler rubber pad, the second pawl grooves are alternately arranged with the first pawl grooves, the cross section of one side of the coupler taper sleeve is in a circular shape, the circular inner diameter of the coupler taper sleeve is matched with the outer diameter of the coupler rubber pad, second pawls with the same number as that of second pawl grooves of the coupler rubber pad are formed in corresponding positions of the inner wall of the coupler taper sleeve, and the shape of the second pawls are consistent with the shape of the second pawl grooves;
the third coupling part is installed in the motor hollow shaft and locked by adopting a locking nut;
pressing the piston into the ball screw nut to form a motor assembly;
the main leather cup and the auxiliary leather cup are arranged in a leather cup groove of the cylinder body, and the anti-rotation sleeve and the cylinder body are fixed on the valve block in a riveting mode to form a valve block assembly;
the central shaft of the motor assembly is aligned with the central shaft of the cylinder body, a limit key on the ball screw nut is installed in a limit groove of the anti-rotation sleeve, and the motor assembly is fixed on the valve block through a screw.
Further, the number of the first pawls is 3, the number of the second pawl grooves is 3, and the first pawls, the first pawl grooves, the second pawls and the second pawl grooves are located on the same plane.
The utility model provides a transmission booster unit through increase flexonics between ball screw's lead screw and motor hollow shaft for the piston can be coaxial better with the cylinder body in the motion process, and reduce or eliminate the lateral force that cylinder body and leather cup received, thereby avoid producing abnormal sound, and improve the life of leather cup.
Drawings
FIG. 1 is a schematic diagram of a prior art transmission assist mechanism;
FIG. 2 is a schematic diagram of a transmission booster device of the present application;
FIG. 3 is a schematic view of a partial structure of a transmission booster device of the present application;
FIG. 4 is a schematic view of the construction of the coupling pawl of the present application;
FIG. 5 is a schematic structural view of a rubber pad for a coupling according to the present application;
fig. 6 is a schematic structural view of a coupling cone sleeve according to the present application.
Detailed Description
The technical scheme of the application is further elaborated below with reference to the drawings in the specification and the specific embodiments.
Various combinations of the features described in the embodiments may be implemented without contradiction, for example, different embodiments may be formed by combining different features, and various possible combinations of the features in the present application are not described further to avoid unnecessary repetition.
In the description of the embodiments of the present application, unless otherwise indicated and defined, the term "connected" should be construed broadly, and for example, may be an electrical connection, may be a communication between two elements, may be a direct connection, or may be an indirect connection via an intermediary, and it will be understood by those skilled in the art that the specific meaning of the term may be understood according to the specific circumstances.
It should be noted that, the term "first\second\third" in the embodiments of the present application is merely to distinguish similar objects, and does not represent a specific order for the objects, it is to be understood that "first\second\third" may interchange a specific order or sequence where allowed. It is to be understood that the "first\second\third" distinguishing objects may be interchanged where appropriate such that the embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The transmission assist device according to the embodiment of the present application will be described in detail with reference to fig. 2 to 6.
As shown in fig. 2 to 6, the transmission assisting device is suitable for use in a brake system, and includes a motor 25, a coupling, a ball screw 27, an anti-rotation sleeve 26, a piston 28, a cylinder 29, a main cup 30, and a sub cup 31.
The motor further includes a housing 251, a bearing 252, a rotor 253, and a stator, the coupling further includes a coupling ball socket 21, a coupling taper 23, a coupling pawl 24, and a coupling rubber pad 32, and the ball screw further includes a screw 271, a nut 272, and a limit key 273.
One end of the screw rod 271 is provided with a rod handle, the screw rod handle is a cylinder with the diameter smaller than that of the screw rod main body, and one end of the rod handle, far away from the screw rod main body, is a ball head. The screw rod handle is arranged on the inner ring of the coupler pawl 24 in a penetrating way. The coupling rubber pad 32 is arranged on the outer ring of the coupling pawl 24, and the coupling rubber pad 32 is pressed into the coupling taper sleeve 23 in an interference manner. The shape of the coupler ball socket 21 is matched with that of the ball head of the screw rod handle, and the coupler ball socket 21 and the screw rod handle are connected together in a riveting mode, and a swing angle exists between the coupler ball socket 21 and the screw rod handle. The coupler taper sleeve 23 and the coupler ball socket 21 are connected together in a riveting mode, and the coupler taper sleeve 23 and the rotor 253 of the motor are connected together.
The shaft coupling pawl 24 sets up 3 first pawls 241,3 first pawl 241 and links as an organic wholely through central ring, and 3 first pawls outwards stretch out by central ring outer fringe, and central ring center sets up the round hole, forms the inner circle of shaft coupling pawl 24, and the inner circle of shaft coupling pawl 24 is worn to locate by the lead screw pole handle, and lead screw pole handle and shaft coupling pawl 24 pass through the riveting mode and connect. The number of the first pawls 241 provided for the coupling pawls 24 is not less than 2, and 3 first pawls are provided in this embodiment.
The cross section of the coupler rubber pad 32 is in a circular shape, the inner diameter of the circular shape is matched with the outer diameter of the central circular ring of the coupler pawl 24, 3 first pawl grooves 322 are formed in the corresponding positions of the inner wall of the coupler rubber pad 32, the number of the first pawl grooves is the same as that of the first pawls 241 of the coupler pawl 24, and the shape of the first pawl grooves 322 is consistent with that of the first pawls 241.
The outer wall of the coupling rubber pad 32 is provided with 3 second pawl grooves 321, the number of the second pawl grooves on the outer wall of the coupling rubber pad 32 is not less than 2, and the embodiment is provided with 3 second pawl grooves.
The second pawl grooves 321 and the first pawl grooves 322 are alternately arranged, the cross section of one side of the coupler taper sleeve 23 is circular, the circular inner diameter of the coupler taper sleeve 23 is matched with the outer diameter of the coupler rubber pad 32, the corresponding positions of the inner wall of the coupler taper sleeve 23 are provided with second pawls 231 which are the same as the second pawl grooves 321 of the coupler rubber pad 32, and the shape of the second pawls 231 is consistent with that of the second pawl grooves 321. In this embodiment, the first pawl slot, the second pawl and the second pawl slot are arranged in the same plane in cross section after being mounted so as to facilitate the transmission of torsion.
The coupling cone sleeve 23 is connected with the rotor 253 of the motor 25 through the lock nut 22.
The piston 28 is pressed into the nut 272 of the ball screw 27, the anti-rotation sleeve 26 and the cylinder 29 are fixed on the valve block in a riveting mode, and the limit key of the nut 272 of the ball screw 27 is installed in the limit groove of the anti-rotation sleeve 26.
The main cup 30 and the sub cup 31 are fitted into the cup groove of the cylinder 29.
The transmission booster device in the embodiment can enable the piston to be better coaxial with the cylinder body in the movement process by adding flexible connection between the screw rod of the ball screw and the hollow shaft of the motor, and reduce or eliminate the lateral force born by the cylinder body and the leather cup, thereby avoiding abnormal sound and prolonging the service life of the leather cup.
The manufacturing process of the transmission assisting device comprises the following steps:
and riveting the coupler pawl on the screw rod of the ball screw to form a first coupler component. The shaft coupling pawl sets up 3 first pawls, and 3 first pawls link as an organic wholely through central ring, and 3 first pawls outwards stretch out by central ring outer fringe, and central ring center sets up the round hole, forms the inner circle of shaft coupling pawl, and the inner circle of shaft coupling pawl is worn to locate by the lead screw pole handle, and lead screw pole handle and shaft coupling pawl pass through the riveting mode and connect. The number of the first pawls provided by the coupler pawls is not less than 2, and 3 first pawls are provided in this embodiment.
And riveting the coupler ball socket with a screw rod ball head in the first coupler part to form a second coupler part, wherein a swing angle exists between the coupler ball socket and the screw rod ball head.
And installing the coupler rubber pad on a coupler pawl in the second coupler part, pressing the coupler rubber pad into a coupler taper sleeve in an interference manner, and riveting the coupler taper sleeve with a coupler ball socket to form a third coupler part.
The cross section of the coupler rubber pad is in a circular shape, the inner diameter of the circular shape is matched with the outer diameter of a central circular ring of the coupler pawl, 3 first pawl grooves are formed in corresponding positions of the inner wall of the coupler rubber pad, the number of the first pawl grooves is the same as that of the first pawls of the coupler pawl, and the shape of the first pawl grooves is consistent with that of the first pawls.
The outer wall of the coupling rubber pad is provided with 3 second pawl grooves, the number of the second pawl grooves on the outer wall of the coupling rubber pad is not less than 2, and the embodiment is provided with 3 second pawl grooves.
The second pawl grooves and the first pawl grooves are alternately arranged, one side section of the coupler taper sleeve is circular, the circular inner diameter of the coupler taper sleeve is matched with the outer diameter of the coupler rubber pad, second pawls which are the same as the number of the second pawl grooves of the coupler rubber pad are arranged on the corresponding positions of the inner wall of the coupler taper sleeve, and the shape of the second pawls is consistent with that of the second pawl grooves. In this embodiment, the first pawl slot, the second pawl and the second pawl slot are arranged in the same plane in cross section after being mounted so as to facilitate the transmission of torsion.
And installing the third coupling part into the motor hollow shaft and locking by adopting a locking nut.
And pressing the piston into the ball screw nut to form the motor assembly.
The main leather cup and the auxiliary leather cup are arranged in a leather cup groove of the cylinder body, and the anti-rotation sleeve and the cylinder body are fixed on the valve block in a riveting mode to form the valve block assembly.
The central shaft of the motor assembly is aligned with the central shaft of the cylinder body, a limit key on the ball screw nut is installed in a limit groove of the anti-rotation sleeve, and the motor assembly is fixed on the valve block through a screw.
In the operation process of the transmission booster device, firstly, when the motor hollow shaft rotates, the rotor drives the coupler taper sleeve to rotate together, the coupler taper sleeve drives the coupler pawl and the screw rod to rotate simultaneously through the pawl structure, the coupler rubber pad is positioned between the coupler pawl and the coupler taper sleeve, so that a buffer effect is achieved, and the ball screw has a certain swing angle.
The screw rod rotates, the screw moves along with the screw rod, and meanwhile, the screw rod cannot rotate due to the limiting function of the anti-rotation sleeve, and can only perform linear motion and push the piston to move, so that braking pressure is generated in the cylinder body.
In the operation process, the coupling ball socket and the screw rod can swing mutually, and the coupling rubber pad can have certain compression deformation, and the main cylinder is limited on the piston, so that smaller eccentric wear force or no eccentric wear force can be generated between the piston and the main cylinder, friction noise is not generated between the piston and the cylinder body, and the leather cup in the leather cup groove of the cylinder body is uniformly stressed, so that the service life of the transmission power assisting device can be prolonged.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a transmission booster device, is suitable for braking system, and characterized in that includes motor, shaft coupling, ball, prevents changeing sleeve, piston and cylinder body, the motor further includes casing, bearing, rotor and stator, the shaft coupling further includes shaft coupling ball socket, shaft coupling taper sleeve, shaft coupling pawl and shaft coupling rubber pad, the ball further includes lead screw, screw and limit key, wherein,
one end of the screw rod is provided with a screw rod handle, the other end of the screw rod is provided with a screw rod main body, the screw rod handle is a cylinder with the diameter smaller than that of the screw rod main body, and one end of the screw rod handle, which is far away from the screw rod main body, is a ball head;
the shaft coupling pawl is provided with at least 2 first pawls, the first pawls are connected through a central circular ring, the screw rod handle penetrates through an inner ring formed by the central circular ring of the shaft coupling pawl, and the screw rod handle is connected with the shaft coupling pawl in a riveting mode;
the coupling rubber pad is arranged on the outer ring of the coupling pawl, the cross section of the coupling rubber pad is in a circular shape, the inner diameter of the circular ring is matched with the outer diameter of the central circular ring of the coupling pawl, first pawl grooves with the same number as that of the first pawls of the coupling pawl are arranged on the corresponding position of the inner wall of the coupling rubber pad, and the shape of the first pawl grooves is consistent with that of the first pawls;
the coupler rubber pad is pressed into the coupler taper sleeve in an interference manner, at least 2 second pawl grooves are formed in the outer wall of the coupler rubber pad, the second pawl grooves and the first pawl grooves are alternately formed in the outer wall of the coupler rubber pad, the cross section of one side of the coupler taper sleeve is circular, the circular inner diameter of the coupler taper sleeve is matched with the outer diameter of the coupler rubber pad, second pawls which are the same in number as the second pawl grooves of the coupler rubber pad are arranged at corresponding positions on the inner wall of the coupler taper sleeve, and the shape of each second pawl is identical with that of each second pawl groove;
the coupler ball socket is matched with and connected with the ball head of the screw rod handle in shape, and a swing angle exists between the coupler ball socket and the screw rod handle;
the shaft coupling taper sleeve is connected with the shaft coupling ball socket, and the shaft coupling taper sleeve is connected with the rotor of the motor.
2. The transmission assist device of claim 1 wherein the first number of pawls is 3 and the second number of pawl slots is 3.
3. The transmission assistance device of claim 2, wherein the first detent, the first detent groove, the second detent and the second detent groove are located in the same plane.
4. The transmission assisting device according to claim 1, wherein the coupling ball socket is connected with a ball head of the screw rod handle in a riveting manner, and the coupling taper sleeve is connected with the coupling ball socket in a riveting manner; the shaft coupling taper sleeve is connected with a rotor of the motor through a locking nut.
5. The transmission assisting device according to claim 1, wherein the piston is pressed into the ball screw nut, the anti-rotation sleeve and the cylinder are fixed on the valve block in a riveting manner, and a limit key of the ball screw nut is installed in a limit groove of the anti-rotation sleeve.
6. The transmission assistance device according to claim 1, further comprising a primary cup and a secondary cup, the primary cup and the secondary cup being mounted in a cup slot of the cylinder.
7. A method of manufacturing the transmission assist device of claim 1, comprising the steps of:
the method comprises the steps that a shaft coupling pawl is riveted on a screw rod of a ball screw to form a first shaft coupling component, wherein the shaft coupling pawl is provided with at least 2 first pawls, the first pawls are connected through a central circular ring, a screw rod handle penetrates through an inner ring formed by the central circular ring of the shaft coupling pawl, and the screw rod handle is connected with the shaft coupling pawl in a riveting mode;
riveting a coupler ball socket with a screw rod ball head in the first coupler part to form a second coupler part, wherein a swing angle exists between the coupler ball socket and the screw rod ball head;
the method comprises the steps that a coupler rubber pad is mounted on a coupler pawl in a second coupler component, the coupler rubber pad is pressed into a coupler taper sleeve in an interference mode, the coupler taper sleeve is riveted with a coupler ball socket to form a third coupler component, the cross section of the coupler rubber pad is in a circular shape, the circular inner diameter of the circular ring is matched with the outer diameter of a central circular ring of the coupler pawl, first pawl grooves with the same number as that of first pawls of the coupler pawl are formed in corresponding positions of the inner wall of the coupler rubber pad, the shape of each first pawl groove is consistent with that of each first pawl, at least 2 second pawl grooves are formed in the outer wall of the coupler rubber pad, the second pawl grooves are alternately arranged with the first pawl grooves, the cross section of one side of the coupler taper sleeve is in a circular shape, the circular inner diameter of the coupler taper sleeve is matched with the outer diameter of the coupler rubber pad, second pawls with the same number as that of second pawl grooves of the coupler rubber pad are formed in corresponding positions of the inner wall of the coupler taper sleeve, and the shape of the second pawls are consistent with the shape of the second pawl grooves;
the third coupling part is installed in the motor hollow shaft and locked by adopting a locking nut;
pressing the piston into the ball screw nut to form a motor assembly;
the main leather cup and the auxiliary leather cup are arranged in a leather cup groove of the cylinder body, and the anti-rotation sleeve and the cylinder body are fixed on the valve block in a riveting mode to form a valve block assembly;
the central shaft of the motor assembly is aligned with the central shaft of the cylinder body, a limit key on the ball screw nut is installed in a limit groove of the anti-rotation sleeve, and the motor assembly is fixed on the valve block through a screw.
8. The method of manufacturing a transmission assist device as recited in claim 7 wherein the first number of pawls is 3 and the second number of pawl slots is 3, the first pawl, first pawl slot, second pawl and second pawl slot being in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311552865.4A CN117261859B (en) | 2023-11-21 | 2023-11-21 | Transmission booster device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311552865.4A CN117261859B (en) | 2023-11-21 | 2023-11-21 | Transmission booster device and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN117261859A true CN117261859A (en) | 2023-12-22 |
| CN117261859B CN117261859B (en) | 2024-03-01 |
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| CN202311552865.4A Active CN117261859B (en) | 2023-11-21 | 2023-11-21 | Transmission booster device and manufacturing method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| KR20120033550A (en) * | 2010-09-30 | 2012-04-09 | 주식회사평화발레오 | Clutch master cylinder |
| WO2017148360A1 (en) * | 2016-02-29 | 2017-09-08 | 天津科为客科技有限公司 | Linear transmission device, disassembly method, and linear transmission device capable of preventing jamming due to preloading |
| DE102017124131A1 (en) * | 2017-10-17 | 2019-04-18 | Schaeffler Technologies AG & Co. KG | Actuator with two spherical segments of different diameter and switching unit |
| CN217421451U (en) * | 2021-12-21 | 2022-09-13 | 万向钱潮股份有限公司 | Brake-by-wire system piston pump based on existing motor |
| CN116198473A (en) * | 2023-04-08 | 2023-06-02 | 吉林东光奥威汽车制动系统有限公司 | Transmission device with swing angle for electric control booster |
| CN116494939A (en) * | 2023-05-25 | 2023-07-28 | 吉林东光奥威汽车制动系统有限公司 | Electric control booster with swing angle transmission mechanism capable of reciprocally building pressure |
| CN219706956U (en) * | 2023-04-12 | 2023-09-19 | 芜湖伯特利电子控制系统有限公司 | Electric control building module of braking system |
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| JP2008149956A (en) * | 2006-12-19 | 2008-07-03 | Jtekt Corp | Electric power steering device |
| KR20120033550A (en) * | 2010-09-30 | 2012-04-09 | 주식회사평화발레오 | Clutch master cylinder |
| WO2017148360A1 (en) * | 2016-02-29 | 2017-09-08 | 天津科为客科技有限公司 | Linear transmission device, disassembly method, and linear transmission device capable of preventing jamming due to preloading |
| DE102017124131A1 (en) * | 2017-10-17 | 2019-04-18 | Schaeffler Technologies AG & Co. KG | Actuator with two spherical segments of different diameter and switching unit |
| CN217421451U (en) * | 2021-12-21 | 2022-09-13 | 万向钱潮股份有限公司 | Brake-by-wire system piston pump based on existing motor |
| CN116198473A (en) * | 2023-04-08 | 2023-06-02 | 吉林东光奥威汽车制动系统有限公司 | Transmission device with swing angle for electric control booster |
| CN219706956U (en) * | 2023-04-12 | 2023-09-19 | 芜湖伯特利电子控制系统有限公司 | Electric control building module of braking system |
| CN116494939A (en) * | 2023-05-25 | 2023-07-28 | 吉林东光奥威汽车制动系统有限公司 | Electric control booster with swing angle transmission mechanism capable of reciprocally building pressure |
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| CN117261859B (en) | 2024-03-01 |
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