CN211425873U - Load testing simulation device for automobile vacuum booster - Google Patents
Load testing simulation device for automobile vacuum booster Download PDFInfo
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- CN211425873U CN211425873U CN201921625159.7U CN201921625159U CN211425873U CN 211425873 U CN211425873 U CN 211425873U CN 201921625159 U CN201921625159 U CN 201921625159U CN 211425873 U CN211425873 U CN 211425873U
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Abstract
The utility model provides a load testing simulator of an automobile vacuum booster, which comprises a bracket; the capacity simulation assemblies are respectively arranged at the left end and the right end of the bracket, and comprise a main pipeline, a plurality of branch pipelines which are communicated with the main pipeline and are arranged in parallel, and a plurality of brake pipe combinations which are communicated with the branch pipelines; the caliper assembly comprises two brake calipers and two booster connecting pipelines respectively arranged on the two brake calipers, the other ends of the two booster connecting pipelines are respectively connected with the two main pipelines, and the end pipelines are respectively provided with a connecting head which is connected with an oil outlet of a brake main cylinder of the automobile vacuum booster. Wherein, the booster connecting pipeline and the branch pipeline are respectively provided with a switch valve.
Description
Technical Field
The utility model belongs to the technical field of the test of car vacuum booster, concretely relates to car vacuum booster test load analogue means.
Background
The automobile vacuum booster is a key component in an automobile braking system, plays a vital role in driving safety, and is always the key point of research on the whole automobile braking system. In the development stage of vacuum booster products, matched brake calipers are required to be used as loads, and a series of performance tests are carried out. However, in the early stages of development, it is generally difficult to find or no brake caliper load matching the original vehicle exists on the market.
At present, two main schemes are provided for testing the load of the automobile vacuum booster in the industry, wherein one scheme is that similar calipers are found on the market as the load according to parameters provided by a host factory. However, the volume of the caliper is single and is not adjustable, one caliper can only be matched with a corresponding booster, and the load adjustment is difficult to carry out; another is to use brake hose combinations to simulate the caliper, and different numbers of hose sets are used to simulate different caliper volumes, but according to fig. 1, the hose simulation characteristic curve (displacement versus pressure) is relatively linear and cannot completely simulate the "soft front and hard back" characteristics of the caliper.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a go on for solving above-mentioned problem, improve car vacuum booster load testing arrangement and solve above-mentioned technical problem, provide one kind and can carry out the car vacuum booster test load analogue means of different adjustments to vacuum booster's load. In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a load testing simulator of an automobile vacuum booster, which is characterized in that the load testing simulator comprises a bracket; the capacity simulation assemblies are respectively arranged at the left end and the right end of the bracket, and comprise a main pipeline, a plurality of branch pipelines which are communicated with the main pipeline and are arranged in parallel, and a plurality of brake pipe combinations which are communicated with the branch pipelines; the caliper assembly comprises two brake calipers and two booster connecting pipelines respectively arranged on the two brake calipers, the other ends of the two booster connecting pipelines are respectively connected with the two main pipelines, and the end pipelines are respectively provided with a connecting head which is connected with an oil outlet of a brake main cylinder of the automobile vacuum booster. Wherein, the booster connecting pipeline and the branch pipeline are respectively provided with a switch valve.
Preferably, the utility model provides an among the car vacuum booster test load analogue means, still including connecing the food tray, set up at the support lower extreme, the support mounting is on connecing the food tray.
Preferably, the utility model provides an among the car vacuum booster test load analogue means, connect to be provided with the runner on the food tray.
Preferably, the utility model provides an among the car vacuum booster test load analogue means, the branch pipeline is four altogether, and the brake pipe combination corresponds to four kinds: the first branch pipeline is communicated with one brake pipe, the second branch pipeline is communicated with two brake pipes, the third branch pipeline is communicated with three brake pipes, and the fourth branch pipeline is communicated with four brake pipes.
Preferably, in the utility model provides an automobile vacuum booster tests load analogue means, the brake pipe bottom is sealed.
Preferably, the utility model provides an among the car vacuum booster test load analogue means, be connected through the valve block between four spinal branch pipelines and four brake pipe combinations, valve block upper end is provided with four spinal branch pipeline connectors, and the lower extreme is provided with four group's brake pipe connector groups, and every group is provided with four brake pipe connectors.
Preferably, the utility model provides an among the car vacuum booster test load analogue means, the brake pipe is the hose, and booster connecting line is the hard tube.
Preferably, in the utility model provides an among the car vacuum booster test load analogue means, the preferred single piston calliper that the discharge capacity is little of brake caliper, its bore is 34.5mm, is common on the market.
Action and effect of the utility model
The utility model provides a car vacuum booster tests load analogue means has following technological effect:
firstly, two groups of capacity simulation components respectively comprise a main pipeline, a plurality of branch pipelines which are communicated with the main pipeline and are arranged in parallel, and a plurality of brake pipe combinations which are communicated with the branch pipelines, and each branch pipeline is provided with a switch valve. By switching the valves, different capacity combinations in the two groups of capacity simulation assemblies are realized, and the requirement of caliper capacity variability is met;
secondly, because calliper subassembly includes two brake callipers and sets up two booster connecting line above that respectively, the other end of these two booster connecting line is connected with two main lines respectively to set up the connector on this end pipeline respectively, be connected with car vacuum booster's brake master cylinder oil-out, realized that the load test needs possess the demand of real car characteristic.
Therefore, the utility model discloses a combination calliper and brake pipe combination simulate out and are fit for the required load of different booster experiments, connect the brake master cylinder oil-out through the connector, perhaps the ABS oil-out both satisfy the volume variability and need not change brake calliper always, have also satisfied the real car characteristic.
Drawings
FIG. 1 is a prior art simulated characteristic curve for a caliper using a combination of brake hoses;
FIG. 2 is a schematic structural diagram of a test load simulation device for an automotive vacuum booster according to an embodiment of the present invention;
fig. 3 is a simulation characteristic curve of the test load simulation device for the vacuum booster of the embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and drawings. The following examples should not be construed, however, as limiting the scope of the invention.
Fig. 2 is the embodiment of the utility model provides an automobile vacuum booster test load analogue means's schematic structure.
As shown in fig. 2, the automotive vacuum booster test load simulation apparatus 100 includes a bracket 1, a capacity simulation assembly 2, a caliper assembly 3, and an oil pan 4.
The support 1 is a square frame, and the bottom end of the support is arranged on the oil receiving disc 4. The volume simulation assembly 2 and the caliper assembly 3 are installed on the support 1 and are connected with two oil outlets of a brake master cylinder of the automobile vacuum booster to be tested.
The capacity simulation assemblies 2 are two groups and are respectively installed at the left end and the right end of the bracket 1, and each group comprises a main pipeline 21, four branch pipelines 22, a valve block 23, four brake pipe combinations 24 and a switch valve 25.
The main pipeline 21 is communicated with the four branch pipelines 22; the valve block 23 is used for installing the four branch pipelines 22 and the brake pipe combination, four branch pipeline connectors are arranged at the upper end, four brake pipe connector groups are arranged at the lower end, and four brake pipe connectors are arranged in each group; the four brake pipe combinations 24 include four brake pipe combinations, which are respectively a brake pipe combination, a two brake pipe combination, a three brake pipe combination and a four brake pipe combination, that is, a first branch pipe is communicated with one brake pipe, a second branch pipe is communicated with two brake pipes, a third branch pipe is communicated with three brake pipes, and a fourth branch pipe is communicated with four brake pipes. By means of the on-off valve 25, the two capacity simulation groups are divided into combinations of different capacities, such as 1+2, 1+3, 1+4, 2+3, 2+4, 3+4, etc. In this embodiment, the brake pipe is preferably a hose, and is sealed at the bottom.
The caliper assembly 3 comprises two brake calipers 31, two booster connection lines 32 respectively provided thereon, and a switching valve 33 mounted on the booster connection lines 32. The other ends of the two booster connecting pipelines 32 are respectively connected with the two main pipelines 21, and the end pipelines are respectively provided with a connecting head 34 which is connected with the oil outlet of the brake master cylinder of the automobile vacuum booster. In this embodiment, the brake caliper is a small displacement caliper, preferably a single piston caliper (34.5 mm bore). The two booster connection lines 32 are preferably hard tubes.
The oil receiving disc 4 receives oil leakage on the device, and prevents the oil leakage from polluting the ground or the experiment table board. The bottom of the device is provided with a rotating wheel 41, which is convenient for the device to transfer.
Automobile vacuum booster test load analogue means in this embodiment cooperatees with vacuum booster income power pole thrust unit and booster output pressure monitoring devices, tests automobile vacuum booster's load, and the flow is as follows:
firstly, two oil outlets of a brake master cylinder of a vacuum booster to be tested are respectively connected with a connector 34, an input rod is connected with a pushing device, and an output part is connected with a pressure monitoring device;
secondly, combining two groups of brake pipe combinations in the capacity simulation assembly according to experience, for example, firstly adopting 1+2 combination, then carrying a real vehicle vacuum degree starting pushing device and an output pressure monitoring device to predict a performance curve of the vacuum booster, selecting different brake pipe combinations for multiple measurements according to the principle that a master cylinder piston reaches 90% of inflection point pressure of the booster when moving to 2/3 positions, and finally obtaining a brake hose combination matched with the load of the automobile vacuum booster to be measured.
The required load that is fit for different booster experiments is simulated to the brake pipe quantity of this embodiment through combination small discharge capacity calliper and different combinations. As can be seen from the simulated characteristic curve shown in fig. 3, the brake caliper not only satisfies the volume variability without having to change the brake caliper all the time, but also satisfies the actual vehicle characteristics.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an automobile vacuum booster test load analogue means which characterized in that includes:
a support;
the capacity simulation assemblies are respectively arranged at the left end and the right end of the bracket, and comprise a main pipeline, a plurality of branch pipelines which are communicated with the main pipeline and are arranged in parallel, and a plurality of brake pipe combinations which are communicated with the branch pipelines;
the caliper assembly comprises two brake calipers and two booster connecting pipelines respectively arranged on the brake calipers, the other ends of the two booster connecting pipelines are respectively connected with two main pipelines, and the end pipelines are respectively provided with a connecting head which is connected with an oil outlet of a brake main cylinder of the automobile vacuum booster,
wherein, the booster connecting pipeline and the branch pipeline are respectively provided with a switch valve.
2. The automotive vacuum booster test load simulation device of claim 1, further comprising:
wherein, connect the food tray, set up in support lower extreme, the support is installed connect on the food tray.
3. The automotive vacuum booster test load simulation device of claim 2, further comprising:
wherein, a rotating wheel is arranged on the oil receiving disc.
4. The automotive vacuum booster test load simulation device of claim 1, wherein:
the number of the branch pipelines is four, and the brake pipe combinations are four correspondingly: the first branch pipeline is communicated with one brake pipe, the second branch pipeline is communicated with two brake pipes, the third branch pipeline is communicated with three brake pipes, and the fourth branch pipeline is communicated with four brake pipes.
5. The automotive vacuum booster test load simulation device of claim 4, wherein:
wherein, the bottom end of the brake pipe is closed.
6. The automotive vacuum booster test load simulation device of claim 4, wherein:
the four branch pipelines are connected with the four brake pipe combinations through valve blocks, four branch pipeline connectors are arranged at the upper ends of the valve blocks, four brake pipe connector groups are arranged at the lower ends of the valve blocks, and four brake pipe connectors are arranged in each group.
7. The automotive vacuum booster test load simulation device of claim 1, wherein:
the brake pipe is a hose, and the booster connecting pipeline is a hard pipe.
8. The automotive vacuum booster test load simulation device of claim 1, wherein:
wherein the brake caliper is a single piston caliper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921625159.7U CN211425873U (en) | 2019-09-27 | 2019-09-27 | Load testing simulation device for automobile vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921625159.7U CN211425873U (en) | 2019-09-27 | 2019-09-27 | Load testing simulation device for automobile vacuum booster |
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| Publication Number | Publication Date |
|---|---|
| CN211425873U true CN211425873U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921625159.7U Active CN211425873U (en) | 2019-09-27 | 2019-09-27 | Load testing simulation device for automobile vacuum booster |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855665A (en) * | 2021-01-04 | 2021-05-28 | 东风汽车股份有限公司 | Displacement measurement test bed of automobile double-cavity hydraulic brake master cylinder |
-
2019
- 2019-09-27 CN CN201921625159.7U patent/CN211425873U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855665A (en) * | 2021-01-04 | 2021-05-28 | 东风汽车股份有限公司 | Displacement measurement test bed of automobile double-cavity hydraulic brake master cylinder |
| CN112855665B (en) * | 2021-01-04 | 2022-12-23 | 东风汽车股份有限公司 | Displacement measurement test bed of automobile double-cavity hydraulic brake master cylinder |
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