WO2023240868A1 - 一种真空助力器输出力测试装置 - Google Patents

一种真空助力器输出力测试装置 Download PDF

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Publication number
WO2023240868A1
WO2023240868A1 PCT/CN2022/126870 CN2022126870W WO2023240868A1 WO 2023240868 A1 WO2023240868 A1 WO 2023240868A1 CN 2022126870 W CN2022126870 W CN 2022126870W WO 2023240868 A1 WO2023240868 A1 WO 2023240868A1
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WIPO (PCT)
Prior art keywords
sealing cover
vacuum booster
cover plate
push rod
force sensor
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PCT/CN2022/126870
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English (en)
French (fr)
Inventor
王春生
杨光强
李贺
杨波
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一汽奔腾轿车有限公司
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Publication of WO2023240868A1 publication Critical patent/WO2023240868A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
    • 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

Definitions

  • the invention relates to the field of automobile parts testing, and in particular to a vacuum booster output force testing device.
  • the vacuum booster is a component in the vehicle braking system and a key actuator in the automotive hydraulic servo braking system. Its main function is to amplify the driver's pedal force during braking according to a certain proportion, making the vehicle braking control easier and more convenient. Reliable, it can effectively reduce the intensity of force exerted by the driver when braking.
  • the input-output force characteristic curve of the vacuum booster is the main technical indicator. In the process of human-vehicle interaction, brake pedal feel adjustment, ergonomic evaluation, braking performance and reliability are closely related to the characteristic curve of the vacuum booster. Therefore, the characteristic curve of the vacuum booster is important in the development of automobile braking systems. Analysis and research are particularly important.
  • the present invention conceives a vacuum booster output force testing device, which uses a sealing cover plate end face seal and a rubber sealing gasket to further ensure the vacuum booster testing conditions, and the force sensor adjusts the predetermined force. Carrying capacity, high precision, flexibility and versatility.
  • a vacuum booster output force testing device which is characterized in that it includes: sealing cover plate 1, rubber sealing ring 2, fixed connection bracket 3, guide positioning bracket 4, push rod connection shaft 5.
  • Force sensor 6, pre-tightening rod 7, inner adjustment block 8, outer adjustment block 9, two identical fixed connection brackets 3 are set between the sealing cover 1 and the guide positioning bracket 4.
  • the two identical fixed connection brackets 3 Both ends of the fixed connection bracket 3 are fixedly connected to the sealing cover 1 and the guide positioning bracket 4 respectively.
  • a force sensor 6 is provided in the middle of the two identical fixed connection brackets 3.
  • a through hole is provided in the center of the sealing cover 1.
  • a threaded hole is provided in the center of the guide and positioning bracket 4.
  • One end of the preloading rod 7 is fixedly connected to the force sensor 6.
  • the preloading rod 7 passes through the central threaded hole of the guide and positioning bracket 4.
  • the inner adjusting block 8 and the outer adjusting block 9 are threadedly connected to the pretensioning pull rod 7 respectively.
  • the push rod connecting shaft 5 passes through Through the central through hole of the sealing cover plate 1, one end of the push rod connecting shaft 5 is fixedly connected to the force sensor 6, an internal thread hole is provided in the other end of the push rod connecting shaft 5, and a protrusion is provided on the outside of the sealing cover plate 1.
  • a rubber sealing ring 2 is installed on the outer boss of the sealing cover plate 1.
  • a self-lubricating bearing is provided between the central through hole of the sealing cover plate 1 and the push rod connecting shaft 5, and there is an interference fit between the central through hole of the sealing cover plate 1 and the self-lubricating bearing. There is a clearance fit between the bearing and the push rod connecting shaft 5 .
  • the force sensor 6 is a JLBS-M2 tension sensor.
  • the rubber sealing ring 2 is a stepped combined end face rubber sealing ring.
  • a vacuum booster output force testing device which seals and connects the vacuum booster through a sealing cover and a rubber sealing gasket to achieve a fixed and sealed vacuum booster.
  • a force sensor is used to adjust the preload force to ensure the precision and accuracy of the test and meet different requirements.
  • it has high flexibility and strong versatility, which can effectively improve the efficiency of test preparation, while meeting the test needs of different models, and can effectively save the cost of test benches.
  • Figure 1 is a three-dimensional schematic diagram of a vacuum booster output force testing device
  • Figure 2 is a schematic diagram of a vacuum booster output force testing assembly station
  • a vacuum booster output force testing device includes: sealing cover plate 1, rubber sealing ring 2, fixed connection bracket 3, guide positioning bracket 4, push rod connection shaft 5, force sensor 6, Pretightening rod 7, inner adjustment block 8, outer adjustment block 9, two identical fixed connection brackets 3 are set between the sealing cover 1 and the guide positioning bracket 4, and the two identical fixed connection brackets 3 have two ends They are respectively fixedly connected to the sealing cover 1 and the guide positioning bracket 4.
  • a force sensor 6 is provided in the middle of the two identical fixed connection brackets 3.
  • a through hole is provided in the center of the sealing cover 1.
  • the guide positioning bracket 4 is A threaded hole is provided in the center, and one end of the preloading rod 7 is fixedly connected to the force sensor 6. The preloading rod 7 passes through the central threaded hole of the guide positioning bracket 4.
  • the preloading rod 7 is threadedly connected to the guide positioning bracket 4.
  • the inner adjustment block 8 and the outer adjustment block 9 are respectively provided on both sides of the bracket 4.
  • the inner adjustment block 8 and the outer adjustment block 9 are threadedly connected to the preload pull rod 7 respectively.
  • the push rod connecting shaft 5 passes through the center of the sealing cover 1. Through hole, one end of the push rod connecting shaft 5 is fixedly connected to the force sensor 6, an internal thread hole is provided in the other end of the push rod connecting shaft 5, a boss is provided on the outside of the sealing cover 1, and a boss is provided on the outside of the sealing cover 1.
  • a rubber sealing ring 2 is provided on the outer boss of the cover plate 1.
  • a self-lubricating bearing is provided between the central through hole of the sealing cover plate 1 and the push rod connecting shaft 5.
  • the central through hole of the sealing cover plate 1 and the self-lubricating bearing There is an interference fit between the self-lubricating bearing and the push rod connecting shaft 5, and there is a clearance fit between the self-lubricating bearing and the push rod connecting shaft 5.
  • the rubber sealing ring (2) is a stepped combined end rubber sealing ring.
  • the vacuum booster 10 is connected through the sealing cover 1 and the rubber sealing gasket 2
  • the fixed connection bracket 3 is connected to the sealing cover 1 through bolts
  • the fixed connection bracket 3 is connected to the guide positioning bracket 4 through bolts
  • the cover plate 1 has a through hole through which the push rod connecting shaft 5 can pass and move axially.
  • the push rod connecting shaft 5 has an internal thread hole and can be connected to the output push rod of the vacuum booster.
  • the force sensor 6 is connected to the push rod connecting shaft 5 through a threaded fit, the preload pull rod 7 is connected to the force sensor 6 through a thread, the inner adjustment block 8 is processed with internal threads, the preload pull rod 7 is connected with an external thread, and the outer adjustment block 9 is connected to the pretension rod 7 through internal threads on the outside of the guide bracket.

Abstract

一种真空助力器输出力测试装置，包括：密封盖板（1）、橡胶密封圈（2）、固定连接支架（3）、导向定位支架（4）、推杆连接轴（5）、力传感器（6）、预紧拉杆（7）、内侧调节块（8）、外侧调节块（9），采用密封盖板（1）端面密封真空助力器，用力传感器（6）测试真空助力器输出力，保证真空助力器测试工况，保证试验的精度和准确性，满足不同尺寸真空助力器测试的需要，灵活性高，通用性强，可有效提高试验准备效率，能够有效节约测试台架成本。

Description

一种真空助力器输出力测试装置 技术领域
本发明涉及汽车零部件测试领域，具体涉及一种真空助力器输出力测试装置。
背景技术
真空助力器是车辆制动系统中的部件，是汽车液压伺服制动系统中的关键执行机构，主要功能是按一定比例放大驾驶员制动时的踏板力，使汽车制动控制更为轻便、可靠，在制动时能够有效减轻驾驶员施加力的强度。在真空助力器开发设计时，真空助力器的输入-输出力特性曲线是主要技术指标。在人车交互过程中，制动踏板感调教、人机工程学评价、制动性能及可靠性等都与真空助力器的特性曲线密切相关，因此，在汽车制动系统开发中对其特性曲线分析与研究就显得尤为重要。
在真空助力器台架测试时，因试验工装密封不良，预载力设置不准确或拆装不便等问题，导致出现试验测试数据不准确、试验效率下降、试验成本增加、试验周期加长等问题。
发明内容
本发明针对现有技术中存在的问题，构思了一种真空助力器输出力测试装置，通过密封盖板端面密封，同时又采用橡胶密封垫，进一步保证真空助力器测试工况，用力传感器调节预载力，精度高、灵活性大、通用性强。
实现本发明采用的技术方案是：一种真空助力器输出力测试装置，其特征是，它包括：密封盖板1、橡胶密封圈2、固定连接支架3、导向定位支架4、推杆连接轴5、力传感器6、预紧拉杆7、内侧调节块8、外侧调节块9，在所述密封盖板1与导向定位支架4间设置两件相同的固定连接支架3，所述两件相同 的固定连接支架3两端分别与密封盖板1与导向定位支架4固连，在所述两件相同的固定连接支架3中间设置力传感器6，在所述密封盖板1中心设置通孔，在所述导向定位支架4中心设置螺纹孔，所述预紧拉杆7一端与力传感器6固连，所述预紧拉杆7穿过导向定位支架4中心螺纹孔，预紧拉杆7与导向定位支架4螺纹连接，在导向定位支架4两侧分别设置内侧调节块8和外侧调节块9，所述内侧调节块8和外侧调节块9分别与预紧拉杆7螺纹连接，所述推杆连接轴5穿过密封盖板1中心通孔，所述推杆连接轴5一端与力传感器6固连，在所述推杆连接轴5另一端头内设置内螺纹孔，所述密封盖板1外侧设置凸台，在所述密封盖板1外侧凸台上设置橡胶密封圈2。
进一步，在所述的密封盖板1中心通孔与推杆连接轴5间设置自润滑轴承，所述的密封盖板1中心通孔与自润滑轴承间为过盈配合，所述的自润滑轴承与推杆连接轴5间为间隙配合。
进一步，所述的力传感器6为JLBS-M2拉力传感器。
进一步，所述的橡胶密封圈2为阶梯组合端面橡胶密封圈。
本发明一种真空助力器输出力测试装置的有益效果体现在：
一种真空助力器输出力测试装置，通过密封盖板和橡胶密封垫，密封连接真空助力器，实现固定密封真空助力器，采用力传感器调节预载力，保证试验的精度和准确性，满足不同尺寸真空助力器测试的需要，灵活性高，通用性强，可有效提高试验准备效率，同时满足不同车型的试验需求，能够有效节约测试台架成本。
附图说明
图1是一种真空助力器输出力测试装置的三维示意图；
图2是一种真空助力器输出力测试装配工位示意图；
图中：1.密封盖板，2.橡胶密封圈，3.固定连接支架，4.导向定位支架，5.推杆连接轴，6.力传感器，7.预紧拉杆，8.内侧调节块，9.外侧调节块、10.真空助力器。
具体实施方式
以下结合附图1—2和具体实施例对本发明作进一步详细说明，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
如附图1所示，一种真空助力器输出力测试装置，它包括：密封盖板1、橡胶密封圈2、固定连接支架3、导向定位支架4、推杆连接轴5、力传感器6、预紧拉杆7、内侧调节块8、外侧调节块9，在所述密封盖板1与导向定位支架4间设置两件相同的固定连接支架3，所述两件相同的固定连接支架3两端分别与密封盖板1与导向定位支架4固连，在所述两件相同的固定连接支架3中间设置力传感器6，在所述密封盖板1中心设置通孔，在所述导向定位支架4中心设置螺纹孔，所述预紧拉杆7一端与力传感器6固连，所述预紧拉杆7穿过导向定位支架4中心螺纹孔，预紧拉杆7与导向定位支架4螺纹连接，在导向定位支架4两侧分别设置内侧调节块8和外侧调节块9，所述内侧调节块8和外侧调节块9分别与预紧拉杆7螺纹连接，所述推杆连接轴5穿过密封盖板1中心通孔，所述推杆连接轴5一端与力传感器6固连，在所述推杆连接轴5另一端头内设置内螺纹孔，所述密封盖板1外侧设置凸台，在所述密封盖板1外侧凸台上设置橡胶密封圈2，在所述的密封盖板1中心通孔与推杆连接轴5间设置自润滑轴承，所述的密封盖板1中心通孔与自润滑轴承间为过盈配合，所述的自润滑轴承与推杆连接轴5间为间隙配合，所述的橡胶密封圈(2)为阶梯组合端面橡胶密封圈。
如附图2所示，通过密封盖板1和橡胶密封垫2连接真空助力器10，固定连接支架3通过螺栓与密封盖板1连接，固定连接支架3通过螺栓与导向定位支架4连接，密封盖板1开有通孔，推杆连接轴5可以通过该通孔，并轴向移动，同时推杆连接轴5开有内螺纹孔，可以与真空助力器输出推杆连接。力传感器6通过螺纹配合与推杆连接轴5连接，预紧拉杆7通过螺纹与力传感器6连接，内侧调节块8加工内螺纹，预紧拉杆7带有外螺纹与之螺纹连接，外侧调节块9在导向支架外侧，通过内螺纹与预紧拉杆7连接。
以上所述仅是本发明的优选方式，应当指出的是，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应该视为本发明的保护范围。

Claims (4)

  1. 一种真空助力器输出力测试装置，其特征是，它包括：密封盖板(1)、橡胶密封圈(2)、固定连接支架(3)、导向定位支架(4)、推杆连接轴(5)、力传感器(6)、预紧拉杆(7)、内侧调节块(8)、外侧调节块(9)，在所述密封盖板(1)与导向定位支架(4)间设置两件相同的固定连接支架(3)，所述两件相同的固定连接支架(3)两端分别与密封盖板(1)与导向定位支架(4)固连，在所述两件相同的固定连接支架(3)中间设置力传感器(6)，在所述密封盖板(1)中心设置通孔，在所述导向定位支架(4)中心设置螺纹孔，所述预紧拉杆(7)一端与力传感器(6)固连，所述预紧拉杆(7)穿过导向定位支架(4)中心螺纹孔，预紧拉杆(7)与导向定位支架(4)螺纹连接，在导向定位支架(4)两侧分别设置内侧调节块(8)和外侧调节块(9)，所述内侧调节块(8)和外侧调节块(9)分别与预紧拉杆(7)螺纹连接，所述推杆连接轴(5)穿过密封盖板(1)中心通孔，所述推杆连接轴(5)一端与力传感器(6)固连，在所述推杆连接轴(5)另一端头内设置内螺纹孔，所述密封盖板(1)外侧设置凸台，在所述密封盖板(1)外侧凸台上设置橡胶密封圈(2)。
  2. 根据权利要求1所述的一种真空助力器输出力测试装置，其特征是，在所述的密封盖板(1)中心通孔与推杆连接轴(5)间设置自润滑轴承，所述的密封盖板(1)中心通孔与自润滑轴承间为过盈配合，所述的自润滑轴承与推杆连接轴(5)间为间隙配合。
  3. 根据权利要求1所述的一种真空助力器输出力测试装置，其特征是，所述的力传感器(6)为JLBS-M2拉力传感器。
  4. 根据权利要求1所述的一种真空助力器输出力测试装置，其特征是，所述的橡胶密封圈(2)为阶梯组合端面橡胶密封圈。
PCT/CN2022/126870 2022-06-16 2022-10-23 一种真空助力器输出力测试装置 WO2023240868A1 (zh)

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GB734211A (en) * 1952-12-18 1955-07-27 N G N Electrical Ltd Improvements in high vacuum gauges and their method of manufacture
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