CN114812913A - Device and method for judging qualified starting force of shoulder strap control mechanism brake block - Google Patents
Device and method for judging qualified starting force of shoulder strap control mechanism brake block Download PDFInfo
- Publication number
- CN114812913A CN114812913A CN202210343101.3A CN202210343101A CN114812913A CN 114812913 A CN114812913 A CN 114812913A CN 202210343101 A CN202210343101 A CN 202210343101A CN 114812913 A CN114812913 A CN 114812913A
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- China
- Prior art keywords
- shoulder strap
- brake block
- operating mechanism
- base plate
- starting force
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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
Abstract
The invention relates to the technical field of shoulder strap control mechanisms, in particular to a device and a method for judging the qualified starting force of a brake block of a shoulder strap control mechanism, wherein the device comprises a mounting fixed base plate, a rotating bracket arranged on the mounting fixed base plate, a pulley and a semicircular measuring head arranged at one end of the rotating bracket; the other end of the rotating support is connected with a nylon wire rope penetrating through the upper portion of the pulley, the other end of the nylon wire rope is connected with a weight, and the distance from the two ends of the rotating support to the rotating center of the rotating support is equal. The invention effectively solves the problems that the error of the measured value of the starting force of the brake block is larger and the measurement validity is questioned because the standard starting force value of the braking block is smaller when the measurement and the judgment of the starting force of the brake block of the shoulder strap control mechanism are carried out, and realizes the effective judgment of whether the starting force of the brake block of the shoulder strap control mechanism is qualified or not. The shoulder strap operating mechanism has the characteristics of convenience in use, safety and reliability, and has remarkable effects of improving the debugging efficiency of the shoulder strap operating mechanism and improving the product reliability.
Description
Technical Field
The invention relates to the technical field of shoulder strap control mechanisms, in particular to a device and a method for judging the qualified starting force of a brake block of a shoulder strap control mechanism.
Background
When a shoulder belt operating mechanism in an airplane seat is manufactured and repaired, the starting force of a brake block in the mechanism needs to be measured, automatic stopping of the mechanism under certain specific working conditions is guaranteed, the brake block has the function that under the condition that the airplane is in fixed overload, the shoulder of a pilot is effectively restrained by automatically stopping the shoulder of the seat shoulder operating mechanism through inertia, the starting force value of the brake block determines whether the brake block can swing to a stopping position or not, whether the shoulder belt operating mechanism can be effectively locked or not and determines the personal safety of the pilot, if the starting force of the brake block of the shoulder belt operating system does not meet the specified requirements, the pilot can not be effectively stopped and collide with the structure in a cockpit, the pilot is injured, or the pilot cannot effectively operate the airplane due to small overload accidental starting, and the serious consequence is caused. The starting force of the original shoulder strap control mechanism brake block is directly measured through the push-pull dynamometer, but because the standard starting force value of the brake block starting force is small (1.03-1.23N), the error of the measured value of the starting force of the brake block is large, and the measured effective existence is questioned. The problem that the product quality risk cannot be effectively controlled exists in the original method for measuring the starting force of the shoulder strap control mechanism brake block. It is therefore desirable to design a device and method for determining whether the actuating force of the shoulder strap operating mechanism brake pad is acceptable.
Disclosure of Invention
Aiming at the technical problems, the invention provides a device and a method for judging the qualified starting force of a brake block of a shoulder strap control mechanism, which are used for solving the problems that the error of the measured value of the starting force of the brake block is large, the measured result is questioned effectively and the like due to the small value of the standard starting force of the brake block when the measurement and the judgment of the starting force of the brake block of the shoulder strap control mechanism are carried out, and the test efficiency and the product reliability of a product are improved.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a qualified judgment device for the starting force of a brake block of a shoulder strap control mechanism comprises a mounting fixed base plate, a rotating bracket arranged on the mounting fixed base plate, a pulley and a semicircular measuring head arranged at one end of the rotating bracket;
the rotary support is horizontally and rotatably arranged on the front side edge of the installation and fixing base plate, the pulleys are vertically distributed on the right side edge of the installation and fixing base plate in the front-back direction by virtue of the rotary shaft, the other end of the rotary support is connected with a silk rope penetrating through the upper part of the pulleys, the other end of the silk rope is connected with weights, and the weights have different weight specifications;
the semicircular measuring head is used for contacting with a measuring point on a measured product, and the distances from the two ends of the rotating support to the rotating center of the rotating support are equal, so that equivalent conversion of a measuring point force value and a loading point force value is realized.
Preferably, the mounting and fixing backing plate is provided with a mounting through hole for fixing on a tested product.
Preferably, the front side edge of the mounting and fixing base plate is provided with a direction seat fixedly connected through a slotted countersunk head screw, and the rotating support is rotatably mounted on the direction seat.
Preferably, the right side edge of the installation fixing base plate is provided with a pulley seat fixedly connected through a slotted countersunk head screw, and the pulley is installed on the pulley seat.
Preferably, a cylindrical pin is arranged on the pulley seat, and the pulley is arranged on the cylindrical pin.
Preferably, the weight is provided with a lifting hook, and the lifting hook is connected with the other end of the nylon wire rope.
Preferably, the weight includes two weight specifications of 105g and 125 g.
A use method of a qualified judgment device for the starting force of a shoulder strap control mechanism brake block applies the qualified judgment device for the starting force of the shoulder strap control mechanism brake block, and comprises the following specific steps:
fixing the judging device on a tested product through a mounting through hole on a mounting and fixing base plate, and enabling the semicircular measuring head to be in contact with a measuring point of the tested product;
secondly, straightening the nylon ropes to enable the nylon ropes to pass above the pulleys;
and thirdly, hanging weights at the tail end of the silk rope in sequence, and judging whether the starting force is qualified or not by checking whether the brake block moves or not.
Further, the specific criteria in step (three) are as follows:
(a) firstly, a 105g weight is hung, the brake block is checked not to move, and then the 105g weight is taken down;
(b) matching with a weight of 125g, and checking that the brake block should move;
(c) and (c) if the judgment standard of the steps (a) and (b) is met, judging that the starting force of the shoulder strap operating mechanism brake block is qualified.
The invention has the beneficial effects that:
the invention designs the qualified judgment device for the starting force of the brake block of the shoulder strap control mechanism, which is reliable in installation, simple in operation and accurate in judgment, effectively solves the problem that the error of the measured value of the starting force of the brake block is large and the measurement is questioned effectively because the standard starting force value of the brake block is small when the measurement and the judgment of the starting force of the brake block of the shoulder strap control mechanism are carried out, and realizes the effective judgment of whether the starting force of the brake block of the shoulder strap control mechanism is qualified or not. The shoulder strap operating mechanism has the characteristics of convenience in use, safety and reliability, and has remarkable effects of improving the debugging efficiency of the shoulder strap operating mechanism and improving the product reliability.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. installing a fixed base plate; 2. a direction seat; 3. rotating the bracket; 4. a semicircular measuring head; 5. a pulley seat; 6. slotting countersunk head screws; 7. a pulley; 8. a cylindrical pin; 9. a weight; 10. a hook; 11. a nylon rope.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following with the accompanying drawings and the embodiments.
As shown in figure 1, the device for judging the qualified starting force of the brake block of the shoulder strap operating mechanism mainly comprises a mounting fixed base plate 1, a direction seat 2, a rotating bracket 3, a semicircular measuring head 4, a pulley seat 5, a pulley 7, a weight 9, a nylon wire rope 11 and the like.
The mounting and fixing base plate 1 is of a plate structure, mounting through holes are formed in the positions, matched with the structural mounting threaded holes in the tested product, of the plate surface, such as the position A and the position B shown in the figure 1, and the mounting and the positioning of the judging device and the tested product can be achieved through the mounting through holes.
The direction seat 2 is fixedly connected to the front side edge of the fixed cushion plate 1 through a slotted countersunk head screw 6.
The rotating support 3 is horizontally and rotatably installed on the direction seat 2 through a bearing, and the semicircular measuring head 4 is arranged on one end portion of the rotating support 3 in an interference fit mode.
The rotation center of the rotating support 3 is positioned in the middle of the rotating support 3, equivalent conversion of a measuring point force value and a loading point force value can be realized through design of equal force arms from a contact measuring point of the rotating support 3 and a product to the rotation center and from a loading point for testing to the rotation center, furthermore, through design of an inclination angle of a mounting plane of the rotating support 3 on the direction seat 2, the rotating support 3 is enabled to be vertically contacted with a measuring point on a tested product, and effective contact of the semicircular measuring head 4 and the measuring point on the tested product can be further realized.
The pulley seat 5 is fixedly connected to the right side of the fixed mounting base plate 1 through a slotted countersunk head screw 6.
The pulleys 7 are vertically distributed on the pulley seat 5 in the front-back direction through the cylindrical pins 8 by rotating shafts, so that the change of the force value measuring and loading action direction is realized.
The weights 9 comprise two weight specifications of 105g and 125g, and the weights of the two specifications are designed according to a standard starting force value; the weight 9 is connected with the other end of the rotating bracket 3 through a lifting hook 10 and a nylon wire rope 11, so that the effective transmission of the load for measurement is realized.
A use method of a qualified judgment device for the starting force of a shoulder strap control mechanism brake block applies the qualified judgment device for the starting force of the shoulder strap control mechanism brake block, and comprises the following specific steps: fixing the judging device on the tested product through the mounting through hole on the mounting fixing base plate 1, and enabling the semicircular measuring head 4 to be in contact with the measuring point of the tested product; straightening the nylon wire rope 11 to pass above the pulley 7; the tail end of the silk rope 11 is sequentially provided with a hanging weight 9, and whether the starting force is qualified or not is judged by checking whether the brake block moves or not.
Specific criteria are as follows: firstly, a 105g weight 9 is hung, the brake block is checked not to move, and then the 105g weight 9 is taken down; matching with a weight 9 hung with 125g, and checking that the brake block should move; if the braking force is consistent with the preset braking force, judging that the starting force of the braking block of the shoulder strap operating mechanism is qualified.
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 embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a shoulder tape operating mechanism brake pads starting force qualification determination device which characterized in that: comprises a mounting and fixing base plate (1), a rotating bracket (3) arranged on the mounting and fixing base plate (1), a pulley (7) and a semicircular measuring head (4) arranged at one end of the rotating bracket (3);
the rotary support (3) is horizontally and rotatably installed on the front side edge of the installation and fixation base plate (1), the pulleys (7) are vertically distributed on the right side edge of the installation and fixation base plate (1) in the front-back direction by using a rotating shaft, the other end of the rotary support (3) is connected with a nylon wire rope (11) penetrating through the upper portion of the pulleys (7), the other end of the nylon wire rope (11) is connected with weights (9), and the weights (9) have different weight specifications;
the semicircular measuring head (4) is used for being in contact with a measuring point on a measured product, and the distances from the two ends of the rotating support (3) to the rotating center of the rotating support (3) are equal, so that equivalent conversion of a measuring point force value and a loading point force value is realized.
2. The shoulder strap operating mechanism brake pad actuation force qualification apparatus according to claim 1, wherein: and the mounting and fixing base plate (1) is provided with a mounting through hole for fixing on a tested product.
3. The shoulder strap operating mechanism brake pad actuation force qualification apparatus according to claim 1, wherein: the front side edge of the mounting and fixing base plate (1) is provided with a direction seat (2) fixedly connected through a slotted countersunk head screw (6), and the rotating support (3) is rotatably mounted on the direction seat (2).
4. The shoulder strap operating mechanism brake pad actuation force qualification apparatus according to claim 1, wherein: the pulley seat (5) fixedly connected through a slotted countersunk head screw (6) is arranged on the right side edge of the mounting and fixing base plate (1), and the pulley (7) is mounted on the pulley seat (5).
5. The apparatus for determining the acceptability of an actuating force of a shoulder strap operating mechanism brake pad as claimed in claim 4, wherein: the pulley seat (5) is provided with a cylindrical pin (8), and the pulley (7) is arranged on the cylindrical pin (8).
6. The shoulder strap operating mechanism brake pad actuation force qualification apparatus according to claim 1, wherein: the weight (9) is provided with a lifting hook (10), and the lifting hook (10) is connected with the other end of the nylon wire rope (11).
7. The apparatus for determining the acceptability of the actuating force of a brake pad for a shoulder strap operating mechanism according to claim 6, wherein: the weight (9) comprises two weight specifications of 105g and 125 g.
8. The use method of the device for judging the qualified starting force of the shoulder strap operating mechanism brake block is characterized by comprising the following steps of: the use of the shoulder strap operating mechanism brake pad actuation force qualification apparatus according to any one of claims 1 to 7, comprising the steps of:
fixing the judging device on a tested product through a mounting through hole on a mounting and fixing base plate (1), and enabling a semicircular measuring head (4) to be in contact with a measuring point of the tested product;
secondly, straightening the nylon wire rope (11) to enable the nylon wire rope to pass above the pulley (7);
and thirdly, hanging weights (9) at the tail end of the nylon wire rope (11) in sequence, and judging whether the starting force is qualified or not by checking whether the brake block moves or not.
9. The method for using a device for determining the acceptability of an actuating force of a brake pad for a shoulder strap operating mechanism as claimed in claim 8, wherein: the specific judgment criteria in step (three) are as follows:
(a) firstly, a 105g weight (9) is hung, the brake block is checked not to move, and then the 105g weight (9) is taken down;
(b) matching with a weight (9) hung with 125g, and checking that the brake block should move;
(c) and (c) if the judgment standard of the steps (a) and (b) is met, judging that the starting force of the shoulder strap operating mechanism brake block is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210343101.3A CN114812913A (en) | 2022-04-02 | 2022-04-02 | Device and method for judging qualified starting force of shoulder strap control mechanism brake block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210343101.3A CN114812913A (en) | 2022-04-02 | 2022-04-02 | Device and method for judging qualified starting force of shoulder strap control mechanism brake block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114812913A true CN114812913A (en) | 2022-07-29 |
Family
ID=82533703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210343101.3A Pending CN114812913A (en) | 2022-04-02 | 2022-04-02 | Device and method for judging qualified starting force of shoulder strap control mechanism brake block |
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| Country | Link |
|---|---|
| CN (1) | CN114812913A (en) |
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| RU2133019C1 (en) * | 1995-10-25 | 1999-07-10 | Санкт-Петербургский государственный аграрный университет | Device to measure ergonomics of controls of motor vehicle |
| CN1939773A (en) * | 2005-09-26 | 2007-04-04 | 高田株式会社 | Belt tension detecting apparatus and child seat |
| JP2007253725A (en) * | 2006-03-22 | 2007-10-04 | Tokai Rika Co Ltd | Seat belt system |
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| CN105738023A (en) * | 2014-12-12 | 2016-07-06 | 贾太龙 | Lifting mechanism for automobile braking force detection |
| CN106017899A (en) * | 2016-07-05 | 2016-10-12 | 国营芜湖机械厂 | Airplane seat constraint system function and airtight testing bench |
| CN106574678A (en) * | 2014-04-04 | 2017-04-19 | 瀚德刹车片产品公司 | Brake actuation mechanism for disc brake and the disc brake comprising the same |
| CN107380022A (en) * | 2017-08-28 | 2017-11-24 | 苏州因诺威汽车科技有限公司 | A kind of child safety seat active pretension shoulder belt and shoulder belt active pre-tension method |
| CN207832362U (en) * | 2017-11-24 | 2018-09-07 | 天合汽车安全技术(张家港)有限公司 | A kind of safety belt mortise lock Opening force measurement device |
| WO2020073582A1 (en) * | 2018-10-10 | 2020-04-16 | 中国矿业大学 | Endless-rope-type vertical shaft lifting joint debugging and testing apparatus and method |
-
2022
- 2022-04-02 CN CN202210343101.3A patent/CN114812913A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4179086A (en) * | 1978-07-20 | 1979-12-18 | The United States Of America As Represented By The Secretary Of The Air Force | Army restraint system |
| RU2133019C1 (en) * | 1995-10-25 | 1999-07-10 | Санкт-Петербургский государственный аграрный университет | Device to measure ergonomics of controls of motor vehicle |
| CN1939773A (en) * | 2005-09-26 | 2007-04-04 | 高田株式会社 | Belt tension detecting apparatus and child seat |
| JP2007253725A (en) * | 2006-03-22 | 2007-10-04 | Tokai Rika Co Ltd | Seat belt system |
| CN201532272U (en) * | 2009-11-17 | 2010-07-21 | 上海龙能自动化设备有限公司 | Opening force detecting device of coiler belt catch |
| KR101187116B1 (en) * | 2011-12-30 | 2012-09-28 | 최병옥 | Measurement part dust exclusion and measurement examination apparatus of brake disk |
| CN103575441A (en) * | 2013-10-23 | 2014-02-12 | 芜湖市顺昌汽车配件有限公司 | Detection device for measuring loading capacity of clamp mechanism |
| CN106574678A (en) * | 2014-04-04 | 2017-04-19 | 瀚德刹车片产品公司 | Brake actuation mechanism for disc brake and the disc brake comprising the same |
| CN105738023A (en) * | 2014-12-12 | 2016-07-06 | 贾太龙 | Lifting mechanism for automobile braking force detection |
| CN204788909U (en) * | 2015-05-29 | 2015-11-18 | 中国人民解放军第五七二一工厂 | Aircraft ejection seat shoulders and forces taut test device |
| CN106017899A (en) * | 2016-07-05 | 2016-10-12 | 国营芜湖机械厂 | Airplane seat constraint system function and airtight testing bench |
| CN107380022A (en) * | 2017-08-28 | 2017-11-24 | 苏州因诺威汽车科技有限公司 | A kind of child safety seat active pretension shoulder belt and shoulder belt active pre-tension method |
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| WO2020073582A1 (en) * | 2018-10-10 | 2020-04-16 | 中国矿业大学 | Endless-rope-type vertical shaft lifting joint debugging and testing apparatus and method |
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