CN2453427Y - Dual cam lifting type collision test bench - Google Patents
Dual cam lifting type collision test bench Download PDFInfo
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- CN2453427Y CN2453427Y CN 00261916 CN00261916U CN2453427Y CN 2453427 Y CN2453427 Y CN 2453427Y CN 00261916 CN00261916 CN 00261916 CN 00261916 U CN00261916 U CN 00261916U CN 2453427 Y CN2453427 Y CN 2453427Y
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- China
- Prior art keywords
- cam
- cam lifting
- table top
- motor
- lifting body
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Abstract
The utility model relates to a dual-cam lifting type collision test bench, comprising a bench body [15], a cam lifting mechanism, an electromotor and a flat bench top [2]. The cam lifting mechanism is arranged on the bench body [15], the electromotor is in transmission connection with the cam lifting mechanism, the bottom of the flat bench top [2] is fixedly connected with the lifting end of the cam lifting mechanism, and an impact cushion block [5] for meeting the slide-off of the flat bench top [2] is arranged on the bench body [15]. The utility model is characterized in that the cam lifting mechanism is composed of two sets of cam push rod mechanisms which are arranged in parallel and are synchronously connected. The utility model has the advantages of simple structure, high rigidity, high transmitting efficiency and excellent performance indexes. The utility model can be used as a collision test bench for large and heavy products, and can better solve the defects existing in single-cam lifting structures.
Description
The utility model relates to the bump testing machine that a kind of Product transport simulation test is used, and is specifically related to a kind of double cam jacking type flat-top bump testing machine.
Bump testing machine is that a kind of product by industries such as 2423 pairs of Aero-Space of standard GB, instrument and meter, automobile, household electrical appliances transports the impact test unit of simulation.In the prior art, bump testing machine is generally all cooperated with flat roof type table top or guide colume type table top by single cam lifting body and constitutes.Guide colume type mesa structure complicated (have two and be fixed on guide pillar on the stage body and the table top formation that is slidingly connected) be applicable to the transport test of heavy test specimen, and the flat roof type mesa structure is simple, mainly is applicable to the transport test of subsized specimen.In the prior art, the original CP-100 impact of our factory testing table is the flat roof type mesa structure, mainly is applicable to the transport test of subsized specimen, and maximum mesa dimensions is 600mm * 700mm, and maximum load is 100Kg, and its structure is main.Comprise stage body, a cover cam lifting body, motor, flat-top table top, the cam lifting body is placed on the stage body, motor and cam lifting body are in transmission connection, fixedly connected with cam lifting body jacking end in the bottom of flat-top table top, stage body is provided with the impact cushion block of meeting the landing of flat-top table top head-on.But along with economic development, market increases day by day to the demand of large-scale bump testing machine, original CP-100 impact testing table is limit owing to structure, be difficult to finish impact test large-scale, Heavy Product, and the bump testing machine of guide colume type mesa structure is because complex structure, the cost height, volume is big, is subjected to the restriction in market equally.Therefore how to design a kind of both simple in structurely, cost is low, and volume is little, can adapt to the problem that bump testing machine large-scale, Heavy Product has just become each production firm and researchist to be concerned about again.
The utility model purpose provides a kind of simple in structure, and excellent performance can adapt to flat roof type bump testing machine large-scale, Heavy Product again.
For achieving the above object, the technical solution adopted in the utility model is: a kind of double cam jacking type bump testing machine, comprise stage body, cam lifting body, motor, flat-top table top, the cam lifting body is placed on the stage body, motor and cam lifting body are in transmission connection, fixedly connected with cam lifting body jacking end in the bottom of flat-top table top, guide frame is located at the table top below, stage body is provided with the impact cushion block of meeting the landing of flat-top table top head-on, and described cam lifting body is connected and composed synchronously by the two cover cam follower mechanisms that are arranged in parallel.
After the utility model adopted two cover cam follower mechanisms, it was extremely important to raise the flat-top table top synchronously.For addressing this problem, on the technique scheme basis, can adopt following three kinds of technical schemes:
1, described two cover cam follower mechanisms connect synchronously by gear drive.
2, be provided with synchronizing shaft between the described two cover cam follower mechanisms, synchronizing shaft is fixedlyed connected synchronously with the cam that is positioned at two ends, and motor is in transmission connection through gear drive and synchronizing shaft.
3, be provided with synchronizing shaft between the described two cover cam follower mechanisms, synchronizing shaft is fixedlyed connected synchronously with the cam that is positioned at two ends, and synchronizing shaft is provided with toggle, and motor is connected with toggle through gear train.
In the technique scheme, because the heavier motor of load is a direct current motor, and rectification circuit adopts the three-phase controllable silicon rectification circuit.
The utility model principle of work is: when product transports simulated collision test, motor drives two cover cam follower mechanisms simultaneously by gear train and raises the flat-top table top synchronously to peak, two cams are thrown off push rod simultaneously then, make table top and test products drop down onto position of collision, repeatedly with this along the free skating of push rod sliding path.
Stressed and the performance evaluation contrast of the single cam lifting body of the utility model double cam lifting body and prior art.Following Fig. 1, shown in Figure 2 is in single cam lifting body, because push rod [3] is positioned at table top [2] center, make table top [2] can not do too greatly, when table top [2] was big, table top [2] acceleration uniformity coefficient will exceed standard, and the rigidity to table top [2] requires also very big simultaneously.But in the double cam lifting body,, form dual-gripper mechanism, make the rigidity of supporting mechanism increase greatly, help increasing table top [2], can be used for the test of large product because push rod [3] lays respectively at last 2 points of table top [2].
Simultaneously, in actual use,, will bring additional moment because product [1] center of gravity is impossible and table top [2] center is in full accord.Following Fig. 3, shown in Figure 4.
In Fig. 3, can get following equation according to dynamic balance and principle of moment balance:
N
1=N
2 …………(1)
F
Close* a=N
2* b ... (2)
By formula (2) as can be known, when the center of gravity of product [1] and the center of table top [2] differ bigger, when promptly a is big, because the length (being b) of pilot sleeve [8] is fixing, N
2, N
1Just bigger.Again because friction force
f
1=N
1×f f
2=N
2×f ……………(3)
So friction force is bigger, this has just increased the consumption of system's idle work greatly, simultaneously, in load one regularly, also requires cam that bigger thrust is provided, and promptly the requirement of strength to cam also increases thereupon, and such design obviously is irrational.
And in Fig. 4, can get following equation according to dynamic balance and principle of moment balance:
N
11=N
21 N
21=N
22 ……………(4)
F
Close* a
1+ N
22* 6+ (F
12+ f
22) * (a
1+ a
2)=N
21* b+F
Push away 2* (a
1+ a
2)
……………(5)
By formula (4), (5) and force analysis figure (Fig. 4) as can be known, in the double cam lifting body, when the center of the center of gravity of product [1] and table top [2] differed big, the additional moment that its off-centre is brought was by F
Push away 1Or F
Push away 2Come balance, so pilot sleeve [8] is to the anchorage force of push rod [3] (that is: N
11, N
12, N
21, N
22) and friction force (that is: f
11, f
12, f
21, f
22) will reduce greatly, this has not only reduced the consumption of idle work, and has reduced wearing and tearing, and the thrust on the cam [4] also decreases, and all is favourable to the raising of entire machine performance.Simultaneously, raise mechanism for double cam, when increasing table top [2] size, as long as it is just passable to increase the rigidity and the span of striding between the beam, and the additional friction power that go up to produce at pilot sleeve [8] and the thrust of cam [4] can significantly not increase, like this to large-scale, cam [4] stressing conditions had just obtained obvious improvement when Heavy Product was done experiment.
Because the technique scheme utilization, the utility model advantage compared with prior art is simple in structure, good rigidly, and the transmission efficiency height, performance index are superior, and are applied widely.This scheme is used for large-scale, Heavy Product bump testing machine preferably resolves the weak point of single cam climbing structure.
The synchronism of double cam transfer bar mechanism when raising table top is the key issue of the technical program.For addressing this problem preferably, the utility model has provided three kinds of different structural measures, and its purpose is exactly the consistance in order to ensure the bump testing machine surge waveform, to improve performance index.
Accompanying drawing 1 is single cam lifting body sketch;
Accompanying drawing 2 is a double cam lifting body sketch;
Accompanying drawing 3 is the stressed sketch of single cam lifting body;
Accompanying drawing 4 is the stressed sketch of double cam lifting body;
Accompanying drawing 5 is the utility model example structure figure.
Wherein: [1], product; [2], table top; [3], push rod; [4], cam; [5], impact cushion block; [6], baffle ring; [7], baffle ring; [8], sleeve; [9], cover plate; [10], supporting base; [11], gear; [12], axle; [13], counter; [14], case; [15], stage body.
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 2 and accompanying drawing 5, a kind of double cam jacking type bump testing machine, comprise stage body [151, cam lifting body, motor, flat-top table top [2].Described cam lifting body is connected and composed synchronously by the two cover cam follower mechanisms that are arranged in parallel, the double cam lifting body is placed on the stage body [15], cam follower mechanism is made up of cam [4] and push rod [3], cam [4] is fixed on the axle [12], on supporting base [10], axle [12] is provided with counter [13] to axle [12] by bearing fixing; Push rod [3] is slidingly connected with sleeve [8], and sleeve [8] is fixed on supporting base [10].Motor is connected by the axle [12] that gear drive and two overlaps in the cam follower mechanisms synchronously, and gear [11] is fixed on the axle [12].Fixedly connected with push rod [3] top in the two cover cam follower mechanisms respectively in the bottom of flat-top table top [2].Stage body [15] is provided with the impact cushion block [5] of meeting flat-top table top [2] landing head-on, impacts cushion block [5] and is provided with cushion pad, impacts cushion block [5] and is connected with stage body [15] with baffle ring [7] through baffle ring [6].Also be provided with case [14] and cover plate [9] on the stage body [15].Present embodiment table top [2] is of a size of 1200mm * 900mm, and maximum load is 500Kg, is exclusively used in test large-scale, Heavy Product.Because present embodiment need be used high power direct-current motor, working current is bigger, can not adopt single-phase silicon-controlled rectification circuit, so adopt the three-phase controllable silicon rectification circuit to control motor, makes three phase supply circuit load equilibrium.
Claims (5)
1, a kind of double cam jacking type bump testing machine, comprise stage body [15], cam lifting body, motor, flat-top table top [2], the cam lifting body is placed on the stage body [15], motor and cam lifting body are in transmission connection, fixedly connected with cam lifting body jacking end in the bottom of flat-top table top [2], guide frame is located at table top [2] below, stage body [15] is provided with the impact cushion block [5] of meeting flat-top table top [2] landing head-on, it is characterized in that: described cam lifting body is connected and composed synchronously by the two cover cam follower mechanisms that are arranged in parallel.
2, bump testing machine according to claim 1 is characterized in that: described two cover cam follower mechanisms connect synchronously by gear drive.
3, bump testing machine according to claim 1 is characterized in that: be provided with synchronizing shaft between the described two cover cam follower mechanisms, synchronizing shaft is fixedlyed connected synchronously with the cam that is positioned at two ends, and motor is in transmission connection through gear drive and synchronizing shaft.
4, bump testing machine according to claim 1, it is characterized in that: be provided with synchronizing shaft between the described two cover cam follower mechanisms, synchronizing shaft is fixedlyed connected synchronously with the cam that is positioned at two ends, and synchronizing shaft is provided with toggle, and motor is connected with toggle through gear train.
5, bump testing machine according to claim 1 is characterized in that: described motor is a direct current motor, and rectification circuit adopts the three-phase controllable silicon rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261916 CN2453427Y (en) | 2000-12-12 | 2000-12-12 | Dual cam lifting type collision test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261916 CN2453427Y (en) | 2000-12-12 | 2000-12-12 | Dual cam lifting type collision test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2453427Y true CN2453427Y (en) | 2001-10-10 |
Family
ID=33617309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00261916 Expired - Lifetime CN2453427Y (en) | 2000-12-12 | 2000-12-12 | Dual cam lifting type collision test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2453427Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101753A (en) * | 2012-11-15 | 2013-05-15 | 江苏天奇物流系统工程股份有限公司 | Cam climbing mechanism |
| CN104066661A (en) * | 2011-11-20 | 2014-09-24 | 伊利诺斯工具制品有限公司 | Storage system and methods |
| CN104101474A (en) * | 2013-04-07 | 2014-10-15 | 上海理工大学 | Wheelchair falling strength testing device |
| CN106959197A (en) * | 2017-03-30 | 2017-07-18 | 北京华安中泰检测技术有限公司 | The method of testing of mechanical structure crash worthiness energy simulation experiment platform |
| CN106989886A (en) * | 2017-03-30 | 2017-07-28 | 陕西华安中泰检测技术有限公司 | A kind of mechanical structure collision performance simulation experiment platform |
| CN106989887A (en) * | 2017-03-30 | 2017-07-28 | 陕西华安中泰检测技术有限公司 | Waveshape generating device for mechanical structure collision performance simulation experiment platform |
-
2000
- 2000-12-12 CN CN 00261916 patent/CN2453427Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10974898B2 (en) | 2011-11-20 | 2021-04-13 | Signode Industrial Group Llc | Storage system and methods |
| US11897694B2 (en) | 2011-11-20 | 2024-02-13 | Signode Industrial Group Llc | Storage system and methods |
| US9643780B2 (en) | 2011-11-20 | 2017-05-09 | Illinois Tool Works Inc. | Storage system and methods |
| CN104066661A (en) * | 2011-11-20 | 2014-09-24 | 伊利诺斯工具制品有限公司 | Storage system and methods |
| US11492198B2 (en) | 2011-11-20 | 2022-11-08 | Signode Industrial Group Llc | Storage system and methods |
| US9643781B2 (en) | 2011-11-20 | 2017-05-09 | Illinois Tool Works Inc. | Storage system and methods |
| US9850066B2 (en) | 2011-11-20 | 2017-12-26 | Signode Industrial Group Llc | Storage system and methods |
| US10526143B2 (en) | 2011-11-20 | 2020-01-07 | Signode Industrial Group Llc | Storage system and methods |
| CN103101753A (en) * | 2012-11-15 | 2013-05-15 | 江苏天奇物流系统工程股份有限公司 | Cam climbing mechanism |
| CN103101753B (en) * | 2012-11-15 | 2015-10-14 | 天奇自动化工程股份有限公司 | Cam lifting body |
| CN104101474A (en) * | 2013-04-07 | 2014-10-15 | 上海理工大学 | Wheelchair falling strength testing device |
| CN106989887A (en) * | 2017-03-30 | 2017-07-28 | 陕西华安中泰检测技术有限公司 | Waveshape generating device for mechanical structure collision performance simulation experiment platform |
| CN106989886B (en) * | 2017-03-30 | 2020-09-29 | 西安从吾电子科技有限公司 | Mechanical structure collision performance simulation experiment platform |
| CN106959197A (en) * | 2017-03-30 | 2017-07-18 | 北京华安中泰检测技术有限公司 | The method of testing of mechanical structure crash worthiness energy simulation experiment platform |
| CN106989887B (en) * | 2017-03-30 | 2023-05-16 | 西安从吾电子科技有限公司 | Waveform generation device for mechanical structure collision performance simulation experiment platform |
| CN106989886A (en) * | 2017-03-30 | 2017-07-28 | 陕西华安中泰检测技术有限公司 | A kind of mechanical structure collision performance simulation experiment platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20101212 Granted publication date: 20011010 |