CN211527840U - Hinged test bed for brake pedal - Google Patents
Hinged test bed for brake pedal Download PDFInfo
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- CN211527840U CN211527840U CN202020194792.1U CN202020194792U CN211527840U CN 211527840 U CN211527840 U CN 211527840U CN 202020194792 U CN202020194792 U CN 202020194792U CN 211527840 U CN211527840 U CN 211527840U
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Abstract
The utility model belongs to the technical field of automobile part bench tests, and relates to a hinged test bed for a brake pedal, which comprises a driving mechanism, a transmission device, a load mechanism, the brake pedal, a first bracket and a second bracket; the driving mechanism is arranged on the second bracket, and the brake pedal, the transmission device and the load mechanism are all arranged on the first bracket; the output end of the driving mechanism is connected with a transmission device in a ball hinge manner, and the transmission device is fixed on the brake pedal; the guide rod in the load mechanism is pivoted with the pedal arm in the brake pedal. The utility model discloses an exert thrust to connecting the device on the footboard face with the ball pivot form, can provide the thrust of multi-angle to the footboard, and do not produce the pulling force effect at the return in-process, guaranteed that the footboard receives load spring elastic action completely at the return in-process, simulated the real car state.
Description
Technical Field
The utility model belongs to the technical field of automobile parts bench test, a an articulated formula test bench for brake pedal is related to, brake pedal is experimental under the mainly used simulation real vehicle state.
Background
The brake pedal of a passenger car is an important component in a brake system, and the quality of the component directly influences the exertion of the performance of the brake.
The brake pedal bench test has different domestic levels, and how to build a test bench which is easy to install, low in cost and high in performance is a problem which needs attention. During the braking process of the driving of the brake pedal, the brake pedal is driven by pedal force, the pedal force drives a booster push rod under the amplification effect of a pedal lever ratio, the booster push rod pushes a main cylinder push rod to move forwards under the boosting effect, force is converted into hydraulic pressure, and the hydraulic pressure of the main cylinder is transmitted to each brake assembly to realize braking. In the process of building the brake bench, pedals suitable for various models need to be considered, the pedals are convenient to mount, the test cost is reduced, the pedal force of a driver and the load of a booster with a master cylinder assembly are simulated, and in the scheme similar to the prior art, on one hand, in the loading mode of simulating the pedal force, the direction of the force is single, the pulling force of return is not eliminated, the mounting is more complicated, and the cost is higher; and on the other hand, the load of the booster with the master cylinder assembly cannot be simulated. Therefore, it is necessary to build the multifunctional test bed
Disclosure of Invention
The utility model aims to solve the technical problem that the above-mentioned problem that prior art exists has been overcome, a articulated formula test bench for brake pedal is provided.
In order to solve the above technical problem, the present invention adopts the following technical solution, which is described below with reference to the accompanying drawings:
a hinged test bed for a brake pedal comprises a driving mechanism 1, a transmission device 2, a load mechanism 3, a brake pedal 6, a first support 4 and a second support 5;
the driving mechanism 1 is arranged on the second bracket 5, and the brake pedal 6, the transmission device 2 and the load mechanism 3 are all arranged on the first bracket 4;
the output of the drive 1 is connected to a transmission 2 in a ball joint manner, the transmission 2 being fastened to a brake pedal 6.
The guide rod 31 of the load mechanism 3 is pivoted with the pedal arm 62 of the brake pedal 6.
In the technical scheme, the load mechanism 3 further comprises a transition joint 33, an optical axis 34, a flange bracket 36, an elastic piece 37 and a positioning nut 38;
the transition joint 33 is fixedly connected with the optical axis 34; one end of the optical axis 34 is connected with the guide rod 31 through a transition joint 33 and a limiting nut 32 in a spherical hinge mode; the other end of the optical axis 34 is connected with an elastic piece 37; the optical axis 34 compresses the elastic member 37 by the pedal arm 62; the initial position of the pedal arm 62 is determined by the retainer nut 38, and the retainer nut 38 is able to rotate within the flange bracket 36.
In the technical scheme, a transition push rod 11 is installed at the output end of the driving mechanism 1, the transition push rod 11 is connected with the transmission device 2 in a ball-and-socket manner, and a pressure measuring device 12 is arranged between the driving mechanism 1 and the transition push rod 11 and used for measuring the driving force applied by the driving mechanism 1 to the brake pedal 6.
In the technical scheme, the second bracket 5 comprises an upper bracket 55 and a lower bracket; the lower support comprises a transverse plate 56, a vertical plate 57, a rib plate 58 and a bottom plate 59, and the connection mode is welding; the two upper brackets 55 are respectively provided on the side end surfaces of the vertical plates 57.
In the technical scheme, the driving mechanism 1 is rotatably connected with an upper bracket 55 through a transition plate 51, a transition flange 52 and a copper sleeve 53.
In the technical scheme, a displacement sensor is arranged on the driving mechanism 1.
An articulated test stand for a brake pedal further comprises a pedal transition plate 41; the pedal transition plate 41 is fixed on the first support, the brake pedal 6 is fixedly connected with the pedal transition plate 41, and the height of the pedal transition plate 41 on the first support is adjustable.
In the technical scheme, a flange linear bearing 35 is arranged on the optical axis 34, and the flange linear bearing 35 is mounted on the front side of the pedal transition plate 41 through a flange of the flange linear bearing.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a load mechanism passes through the ball pivot form with pedal arm and load mechanism and is connected, and booster input push rod is to the effect of footboard under the simulation real vehicle state.
The utility model discloses an actuating mechanism through exerting thrust to the device of connecting on the footboard face with the ball pivot form, can provide the thrust of multi-angle to the footboard, and does not produce the pulling force effect at the return in-process, has guaranteed that the footboard receives load spring elastic action completely at the return in-process, has simulated the real car state.
Drawings
The invention will be further described with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a ball-hinged test bed for a brake pedal according to an embodiment of the present invention;
fig. 2 is a schematic view of an installation of a driving mechanism according to an embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of the transmission mechanism at A in FIG. 2;
fig. 4 is a partial cross-sectional view of a load mechanism according to an embodiment of the present invention.
In the figure: 1-a drive mechanism; 11-a transition push rod; 12-a pressure measuring device;
2-a transmission device;
3-a load mechanism; 31-a guide rod; 32-a limit nut; 33-a transition joint; 34-optical axis; 35-flanged linear bearing; 36-flange bracket; 37-an elastic member; 38-a positioning nut;
4-a first scaffold; 41-pedal transition plate; 42-a pedal pad;
5-a second support; 51-a transition plate; 52-a transition flange; 53-copper sheathing; 54-copper bush limit plate; 55-upper support; 56-transverse plate; 57-vertical plate; 58-ribbed plate; 59-a bottom plate;
6-brake pedal.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
the utility model discloses constitute by actuating mechanism, transmission, load mechanism three major parts.
In the description of the present invention, it is noted that the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model optimizes the driving form of the pedal, applies thrust load to the two-force rod with the rotating center coaxial with the rotating center of the pedal arm, and the pedal arm follows under the action of the two-force rod, thereby ensuring that the stress of the pedal surface is always vertical to the pedal surface in the process of the movement of the pedal arm and ingeniously simulating the stress state of the pedal under the condition of a real vehicle; and the load mechanism is added as a whole.
A hinged test bed for a brake pedal is connected with a spherical hinge of a driving mechanism through a transmission device in a driving mode, so that multidirectional loading can be realized, and the actual braking state of a driver is simulated;
the pedal arm and the load mechanism are connected in a guide rod spherical hinge mode, so that the action of an input push rod of a booster on the pedal can be simulated, and the state is closer to the real vehicle state;
the load part simulates the load of a brake master cylinder by using a linear motion sleeve and an elastic piece;
springs with different rigidity and pretightening force are selected and used, so that the requirements of pedal bench tests of different models (namely the load is large and the pedal stroke is adjustable) are met.
As shown in fig. 1, the present embodiment provides an articulated test stand for a brake pedal, which can simulate a stressed state and a return state of the brake pedal 6 in an actual vehicle state. The articulated test stand for a brake pedal may optionally comprise a drive mechanism 1, a transmission 2, a load mechanism 3, a first bracket 4 and a second bracket 5.
The driving mechanism 1 is arranged on the second bracket 5, and the transition push rod 11 is arranged on the driving mechanism 1. The brake pedal 6, the transmission 2 and the load mechanism 3 are all mounted on the first bracket 4. The output end of the driving mechanism 1, i.e. the transition push rod 11, is connected with the transmission device 2 in a ball-and-socket manner to push the brake pedal 6 to rotate, and the brake pedal 6 inputs a load to the load mechanism 3. A pressure measuring device 12 is arranged between the drive mechanism 1 and the transition tappet 11 for measuring the drive force exerted by the drive mechanism 1 on the brake pedal 6. The load device 3 simulates a booster with a main cylinder assembly, an elastic part is arranged in the booster to simulate the hydraulic load of the main cylinder, and the corresponding relation between the pedal stroke and the pedal force can be established by selecting the elastic parts with different rigidity.
The pedal 61 and the pedal arm 62 together constitute the brake pedal 6.
The pedal arm 62 is connected with the load mechanism 3 through a guide rod 31, a limit nut 32 and a transition joint 33, the guide rod 31 is pivoted with the pedal arm 62, the guide rod 31 is connected with the transition joint 33 through a spherical hinge, and the transition joint 33 is fixedly connected with the optical axis 34.
The internal mechanism principle of the input push rod of the booster and the connection mode of the input push rod and the pedal arm of the brake pedal are similar to the mechanism type, so that the effect of the input push rod of the booster on the pedal can be simulated.
The booster master cylinder assembly is internally provided with a reaction force to the brake pedal by the hydraulic action, and the reaction force is equivalent to the reaction force to a pressing object under the compression state of the elastic element, so that the booster master cylinder assembly can be 'simulated' by the loading mechanism 3.
Specifically, referring to fig. 2, the second bracket 5 includes an upper bracket 55 and a lower bracket, and the lower bracket includes a horizontal plate 56, a vertical plate 57, a rib 58, and a bottom plate 59. The integral connection mode is welding, the structure is stable, and the strength is high. The upper brackets 55 are respectively provided on the side end surfaces of the vertical plates 57. The drive mechanism 1 is rotatably connected with an upper bracket 55 through a transition plate 51, a transition flange 52 and a copper sleeve 53. The rotation along with the driving force in the test process can be realized.
Referring to fig. 3, the transmission device 2 is fastened on the pedal surface through a bolt at the bottom end, the position is determined according to the test requirement, the driving mechanism 1 can selectively determine the loading direction, and the measurement of the brake pedal looseness amount in the space can be realized through an external displacement sensor.
Referring to fig. 4, the load mechanism 3 includes a guide rod 31, a limit nut 32, a transition joint 33, an optical axis 34, a flange linear bearing 35, a flange bracket 36, an elastic member 37, and a positioning nut 38.
The load mechanism 3 may optionally include an optical axis 34 and an elastic member 37. One end of the optical axis 34 is connected with the guide rod 31 through the transition joint 33 and the limiting nut 32 in a spherical hinge mode, and the influence of other connection modes on the test accuracy can be effectively reduced. The other end of the optical axis 34 is connected to an elastic member 37, and the elastic member 37 is preferably a spring. The optical axis 34 compresses the elastic member 37 by the actuation of the pedal arm. The initial position of the pedal arm is determined by a positioning nut 38 which is rotatable within the flange bracket 36.
Specifically, the flange linear bearing 35 is flange-mounted to the front side of the pedal transition plate 41 by itself. The optical axis 34 is guided by a flange linear bearing 35, which is precisely guided by the flange linear bearing 35, ensuring a precise transfer of the load.
The pedal transition plate 41 is fixed on the first support, the brake pedal 6 is fixedly connected with the pedal transition plate 41, and the height of the pedal transition plate 41 on the first support can be adjusted to ensure the initial position of the brake pedal test. The initial position is based on the ability of the drive mechanism to act vertically on the tread surface.
Claims (8)
1. An articulated test bench for brake pedals characterized in that: comprises a driving mechanism (1), a transmission device (2), a load mechanism (3), a brake pedal (6), a first bracket (4) and a second bracket (5);
the driving mechanism (1) is arranged on the second support (5), and the brake pedal (6), the transmission device (2) and the load mechanism (3) are all arranged on the first support (4);
the output end of the driving mechanism (1) is connected with the transmission device (2) in a ball hinge manner, the transmission device (2) is fixed on the brake pedal (6), and the guide rod (31) in the load mechanism (3) is pivoted with the pedal arm (62) in the brake pedal (6).
2. An articulated test rig for a brake pedal according to claim 1, characterized in that:
the load mechanism (3) further comprises a transition joint (33), an optical axis (34), a flange bracket (36), an elastic piece (37) and a positioning nut (38); the transition joint (33) is fixedly connected with the optical axis (34); one end of the optical axis (34) is connected with the guide rod (31) through a transition joint (33) and a limiting nut (32) in a spherical hinge mode; the other end of the optical axis (34) is connected with an elastic piece (37); the optical axis (34) compresses the elastic member (37) under the driving of the pedal arm (62); the initial position of the pedal arm (62) is determined by a positioning nut (38), the positioning nut (38) being able to rotate within the flange bracket (36).
3. An articulated test rig for a brake pedal according to claim 2, characterized in that:
transition push rod (11) are installed to actuating mechanism's (1) output, transition push rod (11) are connected with transmission (2) ball pivot, are equipped with pressure measurement device (12) between actuating mechanism (1) and transition push rod (11) for measure actuating force that actuating mechanism (1) applyed brake pedal (6).
4. An articulated test rig for a brake pedal according to claim 3, characterized in that:
the second bracket (5) comprises an upper bracket (55) and a lower bracket; the lower bracket comprises a transverse plate (56), a vertical plate (57), a rib plate (58) and a bottom plate (59), and the connecting mode is welding; the two upper brackets (55) are respectively arranged on the side end surface of the vertical plate (57).
5. An articulated test rig for a brake pedal according to claim 4, wherein:
the driving mechanism (1) is rotatably connected with the upper bracket (55) through a transition plate (51), a transition flange (52) and a copper sleeve (53).
6. An articulated test rig for a brake pedal according to claim 5, wherein:
and a displacement sensor is arranged on the driving mechanism (1).
7. An articulated test rig for a brake pedal according to claim 6, wherein: the pedal transition plate (41); the pedal transition plate (41) is fixed on the first support, the brake pedal (6) is fixedly connected with the pedal transition plate (41), and the height of the pedal transition plate (41) on the first support is adjustable.
8. An articulated test rig for a brake pedal according to claim 7, wherein:
the optical axis (34) is provided with a flange linear bearing (35), and the flange linear bearing (35) is arranged on the front side of the pedal transition plate (41) through a flange of the flange linear bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020194792.1U CN211527840U (en) | 2020-02-22 | 2020-02-22 | Hinged test bed for brake pedal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020194792.1U CN211527840U (en) | 2020-02-22 | 2020-02-22 | Hinged test bed for brake pedal |
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| Publication Number | Publication Date |
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| CN211527840U true CN211527840U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020194792.1U Active CN211527840U (en) | 2020-02-22 | 2020-02-22 | Hinged test bed for brake pedal |
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| CN (1) | CN211527840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945553A (en) * | 2021-03-31 | 2021-06-11 | 东风汽车集团股份有限公司 | Real vehicle vacuum booster performance test system and method |
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2020
- 2020-02-22 CN CN202020194792.1U patent/CN211527840U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945553A (en) * | 2021-03-31 | 2021-06-11 | 东风汽车集团股份有限公司 | Real vehicle vacuum booster performance test system and method |
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