CN105300590A - Braking force testing device of electronic parking brake - Google Patents
Braking force testing device of electronic parking brake Download PDFInfo
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- CN105300590A CN105300590A CN201510708173.3A CN201510708173A CN105300590A CN 105300590 A CN105300590 A CN 105300590A CN 201510708173 A CN201510708173 A CN 201510708173A CN 105300590 A CN105300590 A CN 105300590A
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- slide block
- braking force
- parking brake
- displacement
- test device
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Abstract
The present invention discloses a braking force testing device of an electronic parking brake. A force sensing fixture, arranged between the piston end face and the force end face of a caliper body, is composed of two sliding blocks, a force sensor and sliding pins, and has simple structure and small size so that the size of the whole braking force testing device is reduced. When EPB is configured to park a vehicle, the piston end face is abutted against the first sliding block which is sliding along the first sliding pin and is abutted against the force sensor, and the force sensor is fixed at the end face of the second sliding block so as to drive the whole force sensor fixture to slide along the second sliding pin; and the whole force sensor fixture stops to slide when the second sliding block is contacted with the force end face of the caliper body, and at the same time the piston continues to push forward and compresses the force sensor so that the braking force of the force sensor at parking is measured. The force sensing fixture is small in deformation and has high braking force testing precision.
Description
Technical field
The present invention relates to braking force test device, particularly relate to the electric parking brake braking force test device that a kind of overall volume is little.
Background technology
Existing electric parking brake braking force test device as shown in Figure 1, when EPB (electronic parking system) carries out parking, piston in caliper body is released forward, slide block before piston expulsive force sensor moves along slide bar, this slipper push force snesor moves together, and then the slide block after expulsive force sensor moves together, continue move under the effect of piston thrust and compress disc spring after slide block after force snesor contacts with disc spring, until parking terminates, force snesor records damping force size.But, existing braking force test device build is large, weight is large, and force snesor is when being subject to more energetically, the deformation of whole power sensing frock is comparatively large, therefore differs greatly with actual parking, and due to power, to detect frock deformation large, and the displacement of piston is less during actual parking, therefore damping force measuring accuracy is not high, and piston displacement when this braking force test device cannot measure parking.
Summary of the invention
The object of the invention is to provide a kind of electric parking brake braking force test device, and structure is simple, and volume is little.
For solving the problem, the electric parking brake braking force test device that the invention provides, comprising:
Power sensing frock, comprise the first slide block being provided with at least one through hole, the second slide block being provided with two through holes and at least one the first sliding pin, the end face bed knife sensor of described second slide block, one end of each first sliding pin and end face elastic conjunction, the other end aligns with a through hole;
Bracket assembly, comprise base plate and the second sliding pin, fixed caliper support and power Bracket for Inspection on described base plate, installing card caliper in described caliper bracket, described power sensing frock is arranged between the piston end surface of caliper body and stressed end face, described second sliding pin one end be each passed through after the through hole of the second slide block with power sensing support elastic conjunction.
Between the piston end surface and stressed end face of caliper body, arrange power sensing frock, this power sensing frock is only made up of the first slide block, the second slide block, force snesor and the first sliding pin, and structure is simple, and volume is little, thus reduces the volume of whole braking force test device.When EPB carries out parking, piston end surface withstands the first slide block, first slide block slides along the first sliding pin and withstands force snesor, and force snesor is fixed on the end face of the second slide block, thus promotes whole force snesor frock along the second sliding pin and slide, stop sliding when the stressed end contact of the second slide block and caliper body, now piston continues driven forward, and snap-in force sensor, thus damping force when recording parking, this power sensing frock deformation is little, and damping force measuring accuracy is high.
Preferably, the through hole number that described first slide block is arranged is equal with the first sliding pin number, at utmost simplifies the processing technology of the first slide block.
Preferably, described power sensing frock comprises two the first sliding pins, and the first slide block slides along two the first sliding pins and withstands force snesor, improves the quality of balance that the first slide block moves integrally.
Preferably, described two the first sliding pins are symmetrically distributed in force snesor both sides, when the first slide block withstands force snesor, and force snesor uniform force.
Preferably, the end face of described first slide block is provided with fixed pin, and described fixed pin snaps in the V-type groove of piston end surface, and ensure that electronic parking system is being carried out parking and separating in the process of staying, piston can not rotate, and can only move along axis.
Preferably, comprise displacement detecting assembly, described displacement detecting assembly comprises displacement pillar, and described displacement pillar to be arranged between power sensing support and to fix with base plate, installation position, described displacement pillar upper end displacement sensor, the measuring head of institute's displacement sensors withstands piston end surface.By arranging displacement transducer, the measuring head of displacement transducer is contacted with piston end surface, and during EPB parking, piston moves, and measuring head is withstood by piston and stressed retraction same distance, therefore can measure the displacement of piston when parking; When EPB carry out solution stay time, displacement sensor head is resetted by the back-moving spring of sensor internal, thus ensures measuring head and piston end surface close contact.
Preferably, described measuring head withstands piston end surface through after the groove on the groove of the first slide block and the second slide block, the piston end surface place relative with the groove on the groove of the first slide block and the second slide block is not blocked by the first slide block, the second slide block, and measuring head withstands piston end surface through after the groove of the first slide block and the second slide block.
Preferably, described displacement pillar upper end fixedly mounts displacement transducer through expansion board, volume is taken for what reduce displacement detecting assembly, less displacement pillar can be used, and in order to ensure the installation stability of displacement transducer, by the expansion board installation position displacement sensor of displacement pillar upper end, neither take up room, ensure again stability is installed.
Prior art of the present invention is compared and is had the following advantages and effect: 1. between the piston end surface and stressed end face of caliper body, arrange power sensing frock, this power sensing frock is made up of two pieces of slide blocks, force snesor and sliding pins, structure is simple, volume is little, thus reduces the volume of whole braking force test device.When EPB carries out parking, piston end surface withstands the first slide block, first slide block slides along the first sliding pin and withstands force snesor, and force snesor is fixed on the end face of the second slide block, thus promote whole force snesor frock and slide along the second sliding pin, stop sliding when the stressed end contact of the second slide block and caliper body, now piston continues driven forward, and snap-in force sensor, thus damping force when recording parking.This power sensing frock deformation is little, and damping force measuring accuracy is high.2. by arranging displacement transducer, the measuring head of displacement transducer is contacted with piston end surface, and during EPB parking, piston moves, and measuring head is withstood by piston and stressed retraction same distance, therefore can measure the displacement of piston when parking.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing electric parking brake braking force test device.
Fig. 2 is the schematic diagram of the power sensing frock of electric parking brake braking force test device of the present invention.
Fig. 3 is electric parking brake braking force test device schematic diagram of the present invention.
Embodiment
As shown in Figure 2, power sensing frock 10 comprises the first slide block 12 being provided with two through holes 11, the second slide block 14 being provided with two through holes 13 and two the first sliding pins 15, the end face 141 bed knife sensor 16 of the second slide block 14, one end of each first sliding pin 15 and end face 141 elastic conjunction, the other end aligns with a through hole 11.This power sensing frock 10 is only made up of the first slide block 12, second slide block 14, force snesor 16 and the first sliding pin 15, structure is simple, volume is little, and two the first sliding pins (15) are symmetrically distributed in force snesor (16) both sides, when first slide block 12 moves along the first sliding pin 15, first slide block 12 can move by Integral synchronous, and when the first slide block 12 withstands force snesor 16, force snesor 16 is stressed also more even.
During practical application, power sensing frock 10 only can be provided with first sliding pin 15, multiple first sliding pin 15 also can be set, in order at utmost simplify the processing technology of the first slide block 12, through hole 11 number on first slide block 12 is equal with the first sliding pin 15 number, namely when only having first sliding pin 15, the first slide block 12 has a through hole 11, when there being three the first sliding pins 15, the first slide block 12 there are three through holes 11.Especially, if power sensing frock 10 only has first sliding pin 15, one end of first sliding pin 15 and end face 141 elastic conjunction, the other end can align with a through hole 11 on the first slide block 12 through behind force snesor 16 center, even if only have first sliding pin 15, first slide block 12 can move by Integral synchronous on the first sliding pin 15 like this.
As shown in Figure 3, bracket assembly comprises base plate 20 and the second sliding pin 25,26, fixed caliper support 21,22 and power Bracket for Inspection 23,24 on base plate 20, installing card caliper 30 in caliper bracket 21,22, power sensing frock 10 is arranged between the piston end surface 31 of caliper body 30 and stressed end face 32, second sliding pin 25,26 one end to be each passed through after the through hole 13 of the second slide block 14 respectively with power sensing support 23,24 elastic conjunction.
Between the piston end surface 31 and stressed end face 32 of caliper body 30, arrange power sensing frock 10, it is simple that this power passes structure, and volume is little, thus reduces the volume of whole braking force test device.When EPB carries out parking, piston end surface 31 withstands the first slide block 12, first slide block 12 slides along the first sliding pin 15 and withstands force snesor 16, and force snesor 16 is fixed on the end face 141 of the second slide block 14, thus promote whole force snesor frock 10 and slide along the second sliding pin 25,26, stop sliding when the second slide block 14 contacts with the stressed end face 32 of caliper body 30, now piston continues driven forward, and snap-in force sensor 16, thus damping force when recording parking, this power sensing frock deformation is little, and damping force measuring accuracy is high.
As shown in Figures 2 and 3, the end face 121 of the first slide block 12 also can arrange fixed pin 17, and fixed pin 17 snaps in the V-type groove (not shown) of piston end surface 31, ensures that electronic parking system is being carried out parking and separated in the process of staying, piston can not rotate, and can only move along axis.
As shown in Figure 3, electric parking brake braking force test device is also provided with displacement detecting assembly, this displacement detecting assembly comprises displacement pillar 41, displacement pillar 41 to be arranged between power sensing support 23,24 and to fix with base plate 20, installation position, displacement pillar 41 upper end displacement sensor 42, the measuring head 421 of displacement transducer 42 withstands piston end surface 31.The measuring head 421 of displacement transducer 42 contacts with piston end surface 31, and during EPB parking, piston moves, and measuring head 421 is withstood by piston and stressed retraction same distance, therefore can measure the displacement of piston when parking; When EPB carry out solution stay time, the measuring head 421 of displacement transducer 42 is resetted by the back-moving spring of sensor internal, thus ensures measuring head 421 and piston end surface 31 close contact.
As shown in Figures 2 and 3, side 123 indent of the first slide block 12 forms groove 122, side 143 indent of the second slide block 14 forms groove 142, groove 122 and groove 142 are coaxially arranged, piston end surface 31 place that groove 122 is relative with groove 142 is not blocked by the first slide block 12, second slide block 14, measuring head 421 withstands piston end surface 31 through after groove 122 and groove 142, is also conducive to the reduction of whole proving installation volume.Displacement pillar 41 upper end also can arrange expansion board 43 and fixedly mount displacement transducer 42, volume is taken for what reduce displacement detecting assembly, less displacement pillar 41 can be used, and in order to ensure the installation stability of displacement transducer 42, by the expansion board 43 installation position displacement sensor 42 of displacement pillar 41 upper end, the fixed installation area of extension bits displacement sensor 42, neither reduces taking up room of displacement detecting assembly, ensures again to install stability.
In addition, it should be noted that, the specific embodiment described in this instructions, the shape, institute's title of being named etc. of its parts and components can be different.All equivalences of doing according to structure, feature and the principle described in inventional idea of the present invention or simple change, be included in the protection domain of patent of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (8)
1. an electric parking brake braking force test device, comprising:
Power sensing frock (10), comprise the first slide block (12) being provided with at least one through hole (11), the second slide block (14) being provided with two through holes (13) and at least one the first sliding pin (15), end face (141) the bed knife sensor (16) of described second slide block (14), one end of each first sliding pin (15) and end face (141) elastic conjunction, the other end aligns with a through hole (11);
Bracket assembly, comprise base plate (20) and the second sliding pin (25, 26), the upper fixed caliper support (21 of described base plate (20), 22) and power Bracket for Inspection (23, 24), described caliper bracket (21, 22) upper installing card caliper (30), described power sensing frock (10) is arranged between the piston end surface (31) of caliper body (30) and stressed end face (32), described second sliding pin (25, 26) one end be each passed through the second slide block (14) through hole (13) afterwards with power sensing support (23, 24) elastic conjunction.
2. electric parking brake braking force test device according to claim 1, is characterized in that, through hole (11) number that described first slide block (12) is arranged is equal with the first sliding pin (15) number.
3. electric parking brake braking force test device according to claim 2, is characterized in that, described power sensing frock (10) comprises two the first sliding pins (15).
4. electric parking brake braking force test device according to claim 3, is characterized in that, described two the first sliding pins (15) are symmetrically distributed in force snesor (16) both sides.
5. electric parking brake braking force test device according to claim 1, it is characterized in that, the end face (121) of described first slide block (12) is provided with fixed pin (17), and described fixed pin (17) snaps in the V-type groove of piston end surface (31).
6. electric parking brake braking force test device according to any one of claim 1 to 5, it is characterized in that, comprise displacement detecting assembly, described displacement detecting assembly comprises displacement pillar (41), described displacement pillar (41) to be arranged between power sensing support (23,24) and to fix with base plate (20), described displacement pillar (41) installation position, upper end displacement sensor (42), the measuring head (421) of institute's displacement sensors (42) withstands piston end surface (31).
7. electric parking brake braking force test device according to claim 7, it is characterized in that, described measuring head (421) withstands piston end surface (31) through after the groove (142) on the groove (122) of the first slide block (12) and the second slide block (14).
8. electric parking brake braking force test device according to claim 7, is characterized in that, described displacement pillar (41) upper end is through expansion board (43) fixed installation displacement transducer (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708173.3A CN105300590A (en) | 2015-10-27 | 2015-10-27 | Braking force testing device of electronic parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708173.3A CN105300590A (en) | 2015-10-27 | 2015-10-27 | Braking force testing device of electronic parking brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105300590A true CN105300590A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510708173.3A Pending CN105300590A (en) | 2015-10-27 | 2015-10-27 | Braking force testing device of electronic parking brake |
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| CN (1) | CN105300590A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404384A (en) * | 2016-12-08 | 2017-02-15 | 芜湖全程智能科技有限公司 | Tool for performance testing of electronic parking brake unit |
| CN107677408A (en) * | 2017-11-21 | 2018-02-09 | 格陆博科技有限公司 | A kind of integrated form EPB brake performance test devices |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06123665A (en) * | 1992-10-09 | 1994-05-06 | Aisin Seiki Co Ltd | Measuring apparatus of braking force |
| US20080077302A1 (en) * | 2006-09-22 | 2008-03-27 | Honda Motor Co., Ltd. | Brake force detecting device |
| CN203376104U (en) * | 2013-07-15 | 2014-01-01 | 泛博制动部件（苏州）有限公司 | Clamping force test device of electronic caliper |
| CN203376096U (en) * | 2013-07-15 | 2014-01-01 | 泛博制动部件（苏州）有限公司 | Device for measuring clamping efficiency of electronic caliper |
| CN103728082A (en) * | 2013-12-12 | 2014-04-16 | 杭州沃镭科技有限公司 | Device and method for testing sliding resistance of brake caliper assembly |
| CN104406731A (en) * | 2014-12-13 | 2015-03-11 | 芜湖哈特机器人产业技术研究院有限公司 | Clamping force detecting tooling for brake caliper |
-
2015
- 2015-10-27 CN CN201510708173.3A patent/CN105300590A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06123665A (en) * | 1992-10-09 | 1994-05-06 | Aisin Seiki Co Ltd | Measuring apparatus of braking force |
| US20080077302A1 (en) * | 2006-09-22 | 2008-03-27 | Honda Motor Co., Ltd. | Brake force detecting device |
| CN203376104U (en) * | 2013-07-15 | 2014-01-01 | 泛博制动部件（苏州）有限公司 | Clamping force test device of electronic caliper |
| CN203376096U (en) * | 2013-07-15 | 2014-01-01 | 泛博制动部件（苏州）有限公司 | Device for measuring clamping efficiency of electronic caliper |
| CN103728082A (en) * | 2013-12-12 | 2014-04-16 | 杭州沃镭科技有限公司 | Device and method for testing sliding resistance of brake caliper assembly |
| CN104406731A (en) * | 2014-12-13 | 2015-03-11 | 芜湖哈特机器人产业技术研究院有限公司 | Clamping force detecting tooling for brake caliper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404384A (en) * | 2016-12-08 | 2017-02-15 | 芜湖全程智能科技有限公司 | Tool for performance testing of electronic parking brake unit |
| CN107677408A (en) * | 2017-11-21 | 2018-02-09 | 格陆博科技有限公司 | A kind of integrated form EPB brake performance test devices |
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Application publication date: 20160203 |
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