CN112611519B - Power-assisted cylinder detection device of automobile braking system - Google Patents
Power-assisted cylinder detection device of automobile braking system Download PDFInfo
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- CN112611519B CN112611519B CN202011534705.3A CN202011534705A CN112611519B CN 112611519 B CN112611519 B CN 112611519B CN 202011534705 A CN202011534705 A CN 202011534705A CN 112611519 B CN112611519 B CN 112611519B
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000009661 fatigue test Methods 0.000 claims abstract description 16
- 230000003139 buffering effect Effects 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
The invention relates to the technical field of oil cylinder power assistance, in particular to a power-assisted oil cylinder detection device of an automobile brake system, which comprises a rectangular frame, a positioning mechanism and a fatigue testing mechanism, wherein the positioning mechanism comprises a positioning table and a positioning cylinder, two mutually parallel positioning plates are arranged on the positioning table, coaxial positioning holes are formed in the two positioning plates, the fatigue testing mechanism comprises a pedal pressing component rotatably arranged at the top of the rectangular frame, a buffering component for assisting pushing and pulling of a push rod and a push-pull cylinder, and the pedal pressing component, the buffering component and the push-pull cylinder of the fatigue testing mechanism are matched with an oil pump in various driving modes to realize fatigue testing of power-assisted oil cylinders of various structures, can realize quick positioning and detection of the power-assisted oil cylinders, and improve batch detection efficiency of the power-assisted oil cylinders.
Description
Technical Field
The invention relates to the technical field of oil cylinder power assistance, in particular to a power-assisted oil cylinder detection device of an automobile brake system.
Background
At present, a large-sized mechanical vehicle is provided with a clutch assisting system, clutch operation is assisted by an assisting oil cylinder, so that the clutch operation is labor-saving, and the operation is simple and convenient. However, most of the existing clutch booster cylinders push pistons to extend out for boosting, so that the clutch booster cylinders are complex in structure and inconvenient to arrange and install.
The utility model discloses a power-assisted cylinder and separation and reunion helping hand system thereof of patent number CN202010013438.9, including the casing and establish the piston in the casing, be equipped with oil inlet and the oil-out that is linked together with the inside casing on the casing, the outer end of piston even has the pulling connecting rod that is used for pulling helping hand, the piston is hollow structure, is equipped with in the piston can be in the piston activity be used for the push rod that links to each other with the footboard correspondence, the inner of piston corresponds the oil inlet setting, the inner of piston is linked together with the cavity of casing, and the inner outer fringe of piston corresponds the oil inlet and is equipped with helping hand ring channel, and the piston inner is equipped with the switch hole that is used for controlling helping hand ring channel and the inner hollow structure of piston to be linked together, and the inner of push rod is corresponding setting with the switch hole of piston inner, as shown in fig. 1, and this technical scheme realizes that helping hand oil pressure drives piston rod and withdraws the pulling helping hand through pushing the push rod and contracts.
When the clutch does not work, oil enters the power-assisted annular groove from the oil inlet, then enters the inner cavity of the shell through the switch hole, finally flows back from the oil outlet, no power-assisted work is generated, the clutch pedal pushes the push rod to retract, the switch hole at the inner end of the piston is closed after the push rod retracts, the oil inlet is separated from the inner cavity of the shell, the oil pressure of the power-assisted annular groove pushes the piston to retract, and the piston drives the pull connecting rod to retract and pull power.
The clutch pull rod is arranged at the upper end of the clutch pull rod group and is connected with the pull rod, the power source utilizes the steering gear to return oil, the steering gear is connected with the oil inlet of the oil cylinder, the oil outlet of the oil cylinder is connected with the oil tank to return oil, and the clutch pull rod is pushed to operate the oil inlet and outlet switch of the oil cylinder by utilizing the upper shifting fork of the clutch pedal during operation, so that the piston moves to pull the rocker arm of the clutch, and the clutch separation function is completed;
however, when the conventional clutch booster cylinder is used for a long time, oil leakage occurs, so that the fatigue performance of the clutch booster cylinder before leaving the factory and the sealing performance of the clutch booster cylinder need to be detected.
Disclosure of Invention
The invention aims to provide a power-assisted cylinder detection device of an automobile brake system, which aims to solve the problems in the background art.
The technical scheme of the invention is as follows:
the utility model provides a power-assisted cylinder detection device of automobile brake system, including power-assisted cylinder and oil pump, the power-assisted cylinder is including oil inlet, oil-out and with power-assisted cylinder's sliding fit's push rod, detection device is including rectangular frame, the positioning mechanism and the fatigue testing mechanism of being used for power-assisted cylinder terminal location, positioning mechanism and fatigue testing mechanism install respectively at rectangular frame's both ends, positioning mechanism is including installing the locating bench in rectangular frame one end middle section and installing the location cylinder on the locating bench, be provided with two locating plates that are parallel to each other on the locating bench, all be provided with coaxial locating hole on two locating plates, the central line coincidence of location cylinder output shaft axis and all locating holes, the fatigue testing mechanism is including the pedal subassembly of pressing at rectangular frame top, auxiliary push rod push-and-pull's buffer assembly and push-pull cylinder of rotating installation.
Further, the pedal pressing assembly comprises a rotating shaft which is rotatably arranged at the eastern middle section of the rectangular frame through a bearing seat, the axis of the rotating shaft is horizontally parallel to the axis of an output shaft of the positioning cylinder, a pedal is fixedly arranged at the end part of the rotating shaft, a swinging slat for pushing the end part of the push rod is arranged at the middle section of the rotating shaft, and the plane of the swinging slat is perpendicular to the axis of the rotating shaft.
Further, the buffer assembly is arranged under the pedal pressing assembly, the buffer assembly comprises a horizontal slat arranged at the middle section of the rectangular frame, a guide rod in sliding fit with the horizontal slat and a buffer spring sleeved on the guide rod, the central line of the guide rod is horizontally perpendicular to the axis of the rotating shaft, the buffer spring is positioned at one side, far away from the positioning mechanism, of the horizontal slat, and a hinge joint is arranged at one end, close to the positioning mechanism, of the guide rod.
Further, a wedge plate is arranged at the top of one end, far away from the positioning mechanism, of the rectangular frame, the normal direction of the plane where the wedge plate is located is perpendicular to the axis of the rotating shaft, and the axis of the output shaft of the push-pull cylinder is perpendicular to the plane where the wedge plate is located.
Further, the output end of the positioning cylinder is sleeved with a positioning sleeve, the positioning sleeve is of a cylindrical barrel structure, a buffer soft layer is arranged between the positioning sleeve and an output shaft of the positioning cylinder, the diameter of the positioning sleeve is the same as that of the positioning hole, and the diameter of the positioning sleeve is larger than that of the output shaft of the positioning cylinder.
Further, the end part of the positioning sleeve, which is far away from the driving cylinder, is provided with a conical surface in an inverted mode.
Compared with the prior art, the invention provides the detection device for the power-assisted oil cylinder of the automobile brake system by improving, which has the following improvement and advantages:
the method comprises the following steps: according to the fatigue testing mechanism, the pedal pressing assembly, the buffer assembly and the push-pull cylinder are matched with the oil pump in various driving modes, so that the fatigue testing of the booster oil cylinders with various structures can be realized, and the service life and the tightness can be detected.
And two,: the positioning mechanism can realize the rapid positioning of the power-assisted oil cylinders, detect the power-assisted oil cylinders and improve the batch detection efficiency of the power-assisted oil cylinders.
Drawings
The invention is further explained below with reference to the drawings and examples:
FIG. 1 is a schematic diagram of a power cylinder;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic perspective view of a second embodiment of the present invention;
FIG. 4 is a rear view of the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a cross-sectional view taken along line B-B of FIG. 5;
FIG. 8 is a schematic perspective view of a third embodiment of the present invention;
reference numerals illustrate:
the device comprises a power cylinder 1, a push rod 11, an oil inlet 12, an oil outlet 13, a piston 14, a cylinder body 15, a rectangular frame 2, a positioning mechanism 3, a positioning table 31, a positioning cylinder 32, a positioning sleeve 33, a buffer soft layer 34, a positioning plate 35, a fatigue testing mechanism 4, a pedal pressing component 5, a bearing seat 51, a rotating shaft 52, a pedal 53, a swinging slat 54, a buffer component 6, a horizontal slat 61, a guide rod 62, a buffer spring 63, a hinge joint 64, a push-pull cylinder 7 and a wedge plate 71.
Detailed Description
The following detailed description of the present invention clearly and fully describes the technical solutions of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a power-assisted cylinder detection device of an automobile brake system through improvement, as shown in fig. 1-8, the power-assisted cylinder detection device comprises a power-assisted cylinder 1 and an oil pump (not shown in the drawings), wherein the power-assisted cylinder 1 comprises an oil inlet 12, an oil outlet 13 and a push rod 11 which is in sliding fit with the power-assisted cylinder 1, the detection device comprises a rectangular frame 2, a positioning mechanism 3 and a fatigue test mechanism 4 which are used for positioning the tail end of the power-assisted cylinder 1, the positioning mechanism 3 and the fatigue test mechanism 4 are respectively arranged at two ends of the rectangular frame 2, the positioning mechanism 3 comprises a positioning table 31 arranged at the middle section of one end of the rectangular frame 2 and a positioning cylinder 32 arranged on the positioning table 31, two positioning plates 35 which are parallel to each other are arranged on the positioning table 31, the two positioning plates 35 are respectively provided with coaxial positioning holes, the output shaft of the positioning cylinder 32 coincides with the central lines of all the positioning holes, and the fatigue test mechanism 4 comprises a pedal pressing component 5 which is rotatably arranged at the top of the rectangular frame 2, a buffer component 6 and a push-pull cylinder 7 which assist the push rod 11 is pushed and pulled, the positioning cylinder 32 is arranged at the tail end of the positioning table 31, and the power-assisted cylinder is hinged to the tail end of the positioning cylinder 7.
The pedal pressing assembly 5 comprises a rotating shaft 52 rotatably arranged at the eastern middle section of the rectangular frame 2 through a bearing seat 51, the axis of the rotating shaft 52 is horizontally parallel to the axis of an output shaft of the positioning cylinder 32, the end part of the rotating shaft 52 is fixedly provided with a pedal 53, the middle section of the rotating shaft 52 is provided with a swinging slat 54 for pushing the end part of the push rod 11, the plane of the swinging slat 54 is vertical to the axis of the rotating shaft 52, the power-assisted cylinder 1 is arranged on the positioning table 31, the output shaft of the positioning cylinder 32 is started to extend out, the tail end of the push-pull cylinder 7 is hinged, a limiting plate for limiting the power-assisted cylinder 1 is arranged on the positioning table 31, the power-assisted cylinder 1 is horizontally arranged on the positioning table 31, the oil outlet 13 and the oil inlet 12 of the power-assisted cylinder 1 are respectively communicated with the oil inlet 12 and the oil outlet 13 of the oil pump, the structure of the power-assisted cylinder 1 with one structure is shown as a power-assisted cylinder 1 and a clutch power-assisted system thereof with the patent number of CN202010013438.9, an oil pump is started, oil is reversely fed along an oil path of the power-assisted cylinder 1, a pedal 53 is stepped down, a swinging slat 54 pushes a push rod 11 to drive a main piston 14 to retract, after the push rod 11 retracts, a switch hole at the inner end of the piston 14 is closed, so that the oil inlet 12 is separated from the cavity in a shell, the oil pressure of a power-assisted annular groove pushes the piston 14 to retract, a connecting rod is pulled to retract and pull power, after the foot is retracted, a return spring of the hydraulic pressure piston 14 of the power-assisted cylinder 1 is matched with the push rod 11 to reset, the operation is repeated for many times, whether oil leakage exists between the push rod 11 and a cylinder body 15 of the power-assisted cylinder 1, and the fatigue performance of the power-assisted cylinder 1 is detected.
The buffer component 6 is arranged right below the pedal pressing component 5, the buffer component 6 comprises a horizontal slat 61 arranged at the middle section of the rectangular frame 2, a guide rod 62 in sliding fit with the horizontal slat 61 and a buffer spring 63 sleeved on the guide rod 62, the central line of the guide rod 62 is horizontally perpendicular to the axis of the rotating shaft 52, the buffer spring 63 is positioned at one side of the horizontal slat 61 away from the positioning mechanism 3, a hinge joint 64 is arranged at one end of the guide rod 62 close to the positioning mechanism 3, the hinge joint 64 of the guide rod 62 is hinged with a pulling connecting rod, the oil pump is started in cooperation, the booster cylinder 1 is reversely fed with oil, and the oil pressure drives the piston 14 to slide in the cylinder body 15.
The top of one end of the rectangular frame 2 far away from the positioning mechanism 3 is provided with a wedge plate 71, the normal direction of the plane of the wedge plate 71 is perpendicular to the axis of the rotating shaft 52, and the axis of the output shaft of the push-pull cylinder 7 is perpendicular to the plane of the wedge plate 71.
The push-pull cylinder 7 replaces a push-pull hydraulic cylinder to detect fatigue performance of the power-assisted cylinder 1, so that manpower for stepping on the pedal pressing assembly 5 can be saved, the push rod 11 is automatically pushed to be matched with an oil pump, and the push rod 11 and the piston 14 move in the cylinder body 15 of the power-assisted cylinder 1.
The output cover of positioning cylinder 32 is equipped with positioning sleeve 33, and positioning sleeve 33 is cylinder structure, is provided with buffering soft layer 34 between positioning sleeve 33 and the positioning cylinder 32 output shaft, positioning sleeve 33's diameter is the same with the diameter of locating hole, and positioning sleeve 33's diameter is greater than positioning cylinder 32's output shaft's diameter, and with the end pendulum of helping hand hydro-cylinder 1 on positioning table 31, start positioning cylinder 32, positioning cylinder 32 drive positioning sleeve 33 pass helping hand hydro-cylinder 1's end and locating plate 35, buffering soft layer 34 avoids helping hand hydro-cylinder 1 to rock the influence that causes eccentric force to positioning cylinder 32 output.
The end of the positioning sleeve 33 far away from the driving cylinder is provided with a conical surface in an inverted mode, so that the positioning sleeve 33 can accurately penetrate through the tail end of the power-assisted cylinder 1 and the positioning plate 35.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides a power-assisted cylinder detection device of automobile brake system, including power-assisted cylinder (1) and oil pump, power-assisted cylinder (1) including oil inlet (12), oil-out (13) and with power-assisted cylinder (1) sliding fit's push rod (11), its characterized in that: the detection device comprises a rectangular frame (2), a positioning mechanism (3) and a fatigue testing mechanism (4) which are used for positioning the tail end of a power-assisted oil cylinder (1), wherein the positioning mechanism (3) and the fatigue testing mechanism (4) are respectively arranged at two ends of the rectangular frame (2), the positioning mechanism (3) comprises a positioning table (31) arranged at one end middle section of the rectangular frame (2) and a positioning cylinder (32) arranged on the positioning table (31), two mutually parallel positioning plates (35) are arranged on the positioning table (31), coaxial positioning holes are formed in the two positioning plates (35), the axis of an output shaft of the positioning cylinder (32) coincides with the central lines of all the positioning holes, and the fatigue testing mechanism (4) comprises a pedal pressing assembly (5), a buffering assembly (6) and a push-pull cylinder (7), wherein the pedal pressing assembly (11) is rotatably arranged at the top of the rectangular frame (2);
the pedal pressing assembly (5) comprises a rotating shaft (52) rotatably mounted at the eastern middle section of the rectangular frame (2) through a bearing seat (51), the axis of the rotating shaft (52) is horizontally parallel to the axis of an output shaft of the positioning cylinder (32), a pedal (53) is fixedly mounted at the end part of the rotating shaft (52), a swinging slat (54) for pushing the end part of the push rod (11) is mounted at the middle section of the rotating shaft (52), and the plane of the swinging slat (54) is perpendicular to the axis of the rotating shaft (52);
the utility model provides a pedal positioning mechanism, including pedal pressing assembly (5), buffering subassembly (6) set up under pedal pressing assembly (5), buffering subassembly (6) are including setting up horizontal slat (61) at the middle section of rectangular frame (2), with horizontal slat (61) sliding fit's guide bar (62) and cover establish buffer spring (63) on guide bar (62), the axis of central line horizontal perpendicular to pivot (52) of guide bar (62), buffer spring (63) are located one side that positioning mechanism (3) was kept away from to horizontal slat (61), and one end that guide bar (62) is close to positioning mechanism (3) is provided with articulated joint (64).
2. The power cylinder detection apparatus of an automobile brake system according to claim 1, characterized in that: the top of one end of the rectangular frame (2) far away from the positioning mechanism (3) is provided with a wedge plate (71), the normal direction of the plane where the wedge plate (71) is located is perpendicular to the axis of the rotating shaft (52), and the axis of the output shaft of the push-pull cylinder (7) is perpendicular to the plane where the wedge plate (71) is located.
3. The power cylinder detection apparatus of an automobile brake system according to claim 1, characterized in that: the output end of the positioning cylinder (32) is sleeved with a positioning sleeve (33), the positioning sleeve (33) is of a cylindrical barrel structure, a buffer soft layer (34) is arranged between the positioning sleeve (33) and the output shaft of the positioning cylinder (32), the diameter of the positioning sleeve (33) is the same as that of the positioning hole, and the diameter of the positioning sleeve (33) is larger than that of the output shaft of the positioning cylinder (32).
4. A power cylinder detection apparatus for an automotive brake system according to claim 3, characterized in that: the end of the positioning sleeve (33) far away from the driving cylinder is provided with a conical surface in an inverted mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011534705.3A CN112611519B (en) | 2020-12-23 | 2020-12-23 | Power-assisted cylinder detection device of automobile braking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011534705.3A CN112611519B (en) | 2020-12-23 | 2020-12-23 | Power-assisted cylinder detection device of automobile braking system |
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| Publication Number | Publication Date |
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| CN112611519A CN112611519A (en) | 2021-04-06 |
| CN112611519B true CN112611519B (en) | 2024-04-02 |
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| CN202011534705.3A Active CN112611519B (en) | 2020-12-23 | 2020-12-23 | Power-assisted cylinder detection device of automobile braking system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412879B (en) * | 2022-03-28 | 2022-06-14 | 徐州耐克盾机械制造有限公司 | Hydraulic cylinder fatigue performance test equipment and test method |
| CN117553056B (en) * | 2024-01-12 | 2024-04-02 | 泉州骏德机械有限公司 | Oil cylinder push rod detection device and detection method thereof |
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