CN203146526U - Elastic component dead lock hanging rod for automobile gravity center measuring experiment - Google Patents
Elastic component dead lock hanging rod for automobile gravity center measuring experiment Download PDFInfo
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- CN203146526U CN203146526U CN 201220724926 CN201220724926U CN203146526U CN 203146526 U CN203146526 U CN 203146526U CN 201220724926 CN201220724926 CN 201220724926 CN 201220724926 U CN201220724926 U CN 201220724926U CN 203146526 U CN203146526 U CN 203146526U
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Abstract
An elastic component dead lock hanging rod for an automobile gravity center measuring experiment aims to solve the problem that a wood block is needed to deadly lock a spiral spring during measurement of automobile gravity center by using the mass-response method. The technical scheme is as follows: the elastic component dead lock hanging rod comprises two double-screw bolts, an internal thread rod and a plurality of internal and external thread rods, wherein an internal thread is arranged in an internal hole of the internal thread rod; an external thread is arranged on one side of each internal and external thread rod, and an internal thread matched the external thread is arranged on the other side of the internal and external thread rod; all internal and external thread rods are in screw joint with each other in an end to end manner; the external thread side of the internal and external thread rod at the head end is in screw joint with one end of the internal thread rod, and the other end of the internal thread rod is in screw joint with one double-screw bolt; and the internal thread side of the internal and external thread rod at the tail end is in screw joint with the other double-screw bolt. The elastic component dead lock hanging rod for automobile gravity center measuring experiment simplifies operations of automobile gravity center measurement, relieves inconveniences for a tester to work in narrow space, enables the length of the dead lock hanging rod to be the same as that of the spiral spring after adjustment, and ensures accuracy of test data.
Description
Technical field
The utility model relates to a kind of centre of gravity of vehicle test component, measures the locked hanging stick of locked elastic component in the test especially for centre of gravity of vehicle.
Background technique
Along with the quick increase of automobile pollution, the traffic accident that causes because of factors such as overload of vehicle, hypervelocities has become the social concern of global concern.The accident that in motor traffic accidents head-on crash and overturning takes place is often seen, death-rate is also higher, the main cause that wherein takes place to overturn is that overload of vehicle, hypervelocity etc. cause, and the theoretical reasons of these accidents is because vehicle behaviour is surely out of control, run counter to the constraint of objective factors such as vehicle's center of gravity, so the accurate measurement of centre of gravity of vehicle position has great important to design and the layout of car load.Position of centre of gravity is directly connected to the forward and backward axle of automobile and can left and right the wheel work under more steady and stable status, and multinomial vehicle performances such as, ABS steady to motor turning, braking, behaviour play an important role.At present, what the method for measuring the centre of gravity of vehicle position both at home and abroad was comparatively commonly used is the quality reaction method, and the required measuring equipment of this method is simple, is easy to realize, it is fixing only to need in measuring phase automobile is had elastic component, and car load is become rigid body get final product.Elastic element mainly is front and back vibration damper and the helical spring of automobile as mentioned herein.General front suspension space is narrow and small, and vibration damper is enclosed within the helical spring the inside, and the rear suspension space is bigger, and vibration damper and helical spring are arranged apart.The quality reaction method is the different height of vehicle lifting, axle load and lifting angle change and change along with rising height before and after in the lifting process, utilize formula in the GB can calculate the position of centre of gravity of car load, but this method has an important precondition to suppose that exactly car load is rigid body, car load helical spring and vibration damper change and highly constantly change with vehicle weight, so need helical spring is locked when carrying out the focus position measurement test.At present the method that generally adopts of automobile industry be with the wood particle plug between every layer of the helical spring, when axle load changed before and after vehicle, wooden unit can stop helical spring decline, to reach the purpose that car load is become rigid body.The problem that this method exists is: 1. because the front suspension space is narrow and small or vibration damper is to be embedded into the vehicle body the inside, wooden unit can not be filled in the helical spring sometimes at all; 2. rear suspension generally is arranged in the vehicle body below, carry out work at the bottom of needing tester to pierce car, the thickness of wooden unit or highly not necessarily with helical spring floor height unanimity, need tester ceaselessly to mate the wooden unit height, sometimes the wooden unit height is slightly higher than the helical spring floor height, need utilize hammer or other weight that wooden unit is pounded in the helical spring, and then artificially helical spring be uprised; 3. because the helical spring number of plies is more, need plug wooden unit in layer, inefficiency; Since wooden unit be when the vehicle level, fill in helical spring, when the lifting vehicle rear axle, the vehicle rear axle lifting, helical spring is elongated, wooden unit very easily comes off, and causes test failure.
The model utility content
The purpose of this utility model is the drawback at prior art, and a kind of reliably easy, locked hanging stick of elastic component that centre of gravity of vehicle is measured test that is used for of being conducive to guarantee the test data accuracy of operating is provided.
Problem described in the utility model realizes with following technical proposals:
A kind of locked hanging stick of elastic component of measuring test for centre of gravity of vehicle, specialization is, it comprises two double-screw bolts, internal thread bar and Duo Gen internal and external threads bar, the endoporus of described internal thread bar is provided with internal thread, one side of described internal and external threads bar arranges outside thread, the internal thread that opposite side setting and outside thread coupling screw, each internal and external threads bar joins end to end and is spirally connected mutually, being positioned at the outside thread side of internal and external threads connecting rod of head end and an end of internal thread bar is spirally connected, the other end of the internal thread bar double-screw bolt that is spirally connected, the internal thread side and another root double-screw bolt that are positioned at terminal internal and external threads bar are spirally connected.
The above-mentioned locked hanging stick of elastic component for centre of gravity of vehicle measurement test on described two double-screw bolts, is respectively equipped with locking nut.
The above-mentioned locked hanging stick of elastic component for centre of gravity of vehicle measurement test, the outside end face of described double-screw bolt is provided with anti-skidding texture.
The above-mentioned locked hanging stick of elastic component for centre of gravity of vehicle measurement test, described internal and external threads bar and internal thread bar middle part are equipped with the spanner groove.
The utility model need adopt the locked helical spring problem of wooden unit to improve at quality reaction method measured automobiles center of gravity, designed the locked hanging stick of a kind of elastic component, described locked hanging stick comprises the interconnective threaded stem of more piece, locked hanging stick two ends are the double-screw bolt that is spirally connected with threaded stem, and the outside end face of double-screw bolt is provided with anti-skidding texture.The utility model utilizes more piece segment threaded stem to connect between helical spring and vibration damper, having solved stock can not enter, the inoperative problem of quarter butt, according to the different characteristics of helical spring length, be provided with at locked hanging stick two ends and can accurately regulate the double-screw bolt of its length, in order to vibration damper is formed secure support.Adopt the utility model to economize and to simplify the operation of testing automobile center of gravity, removed the inconvenience of tester's operation in narrow space, make the intact back of locked hanging stick adjustment in full accord with helical spring length, guaranteed the accuracy of test data.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural representation;
Fig. 2 is the bolt structure schematic representation;
Fig. 3 is internal and external threads bar structural representation;
Fig. 4 is internal thread bar structural representation.
Each list of reference numerals is among the figure: 1, double-screw bolt, 1-1, anti-skidding texture, 2, locking nut, 3, the internal thread bar, 4, the internal and external threads bar, 5, the spanner groove.
Embodiment
Referring to Fig. 1, the utility model is one can adjust the rhabodoid of length, and it is made of through being spirally connected two double-screw bolts 1, internal thread bar 3 and Duo Gen internal and external threads bar 4.
Referring to Fig. 1-4, the endoporus of described internal thread bar 3 is provided with internal thread.One side of described internal and external threads bar 4 arranges the internal thread that outside thread, opposite side setting and outside thread coupling screw.Internal thread bar 3, internal and external threads bar 4 and double-screw bolt are connected by following mode: choose several internal and external threads bars 4 according to the locked helical spring length of want, each internal and external threads bar 4 joins end to end and is spirally connected mutually; Be positioned at the outside thread side that the internal and external threads connecting rod of head end protrudes and be spirally connected with an end of internal thread bar 3, the other end of the internal thread bar double-screw bolt 1 that is spirally connected, internal and external threads bar 4 recessed internal thread side and another root double-screw bolts 1 that are positioned at end are spirally connected.On two double-screw bolts 1, be respectively equipped with locking nut 2.For described locked hanging stick length and helical spring length are mated fully, can adjust the extrusion that is positioned at locked hanging stick two ends double-screw bolt, after the extrusion of double-screw bolt is adjusted, tighten locking nut 2, the axial position of double-screw bolt is fixed.For ease of connecting and fixing each internal and external threads bar 4 and internal thread bar 3, be equipped with spanner groove 5 at internal and external threads bar and internal thread bar middle part, the spanner groove also can adopt outer four directions, outer six sides' structure.
When the utility model used, the double-screw bolt at its two ends vibration damper of conflicting respectively was the frictional force that increases with vibration damper, and end face is provided with anti-skidding texture 1-1 in the outside of two ends double-screw bolt 1, as shown in Figure 2.
The utility model utilizes the internal and external threads bar 4 of many segments and internal thread bar 3 to connect between helical spring and vibration damper, having solved stock can not enter, the inoperative problem of quarter butt, arranging of two ends double-screw bolt solved the problem of accurately mating with helical spring length, guaranteed the accuracy of test data; The utility model adopts by thread connecting mode, has eliminated the inconvenience of tester's operation in small space when using, and has improved the working efficiency that detects.
Claims (4)
1. one kind is used for the locked hanging stick of elastic component that centre of gravity of vehicle is measured test, it is characterized in that, it comprises two double-screw bolts (1), an internal thread bar (3) and many internal and external threads bars (4), the endoporus of described internal thread bar (3) is provided with internal thread, one side of described internal and external threads bar (4) arranges outside thread, the internal thread that opposite side setting and outside thread coupling screw, each internal and external threads bar (4) joins end to end and is spirally connected mutually, being positioned at the outside thread side of internal and external threads connecting rod of head end and an end of internal thread bar (3) is spirally connected, the other end of the internal thread bar double-screw bolt (1) that is spirally connected, the internal thread side and another root double-screw bolt (1) that are positioned at terminal internal and external threads bar (4) are spirally connected.
2. the locked hanging stick of elastic component for centre of gravity of vehicle measurement test according to claim 1 is characterized in that, on described two double-screw bolts (1), is respectively equipped with locking nut (2).
3. the locked hanging stick of elastic component for centre of gravity of vehicle measurement test according to claim 2 is characterized in that the outside end face of described double-screw bolt (1) is provided with anti-skidding texture (1-1).
4. the locked hanging stick of elastic component for centre of gravity of vehicle measurement test according to claim 3 is characterized in that, described internal and external threads bar (4) and internal thread bar (3) middle part are equipped with spanner groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724926 CN203146526U (en) | 2012-12-26 | 2012-12-26 | Elastic component dead lock hanging rod for automobile gravity center measuring experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724926 CN203146526U (en) | 2012-12-26 | 2012-12-26 | Elastic component dead lock hanging rod for automobile gravity center measuring experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146526U true CN203146526U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220724926 Expired - Fee Related CN203146526U (en) | 2012-12-26 | 2012-12-26 | Elastic component dead lock hanging rod for automobile gravity center measuring experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714965A (en) * | 2019-10-17 | 2020-01-21 | 耿梓越 | Hexagon socket head cap screw fastener |
-
2012
- 2012-12-26 CN CN 201220724926 patent/CN203146526U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714965A (en) * | 2019-10-17 | 2020-01-21 | 耿梓越 | Hexagon socket head cap screw fastener |
| CN110714965B (en) * | 2019-10-17 | 2021-05-11 | 成都迈特航空制造有限公司 | Hexagon socket head cap screw fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20201226 |