CN103940732A - Clamp device for friction experiment of drum type friction plate - Google Patents
Clamp device for friction experiment of drum type friction plate Download PDFInfo
- Publication number
- CN103940732A CN103940732A CN201410135881.8A CN201410135881A CN103940732A CN 103940732 A CN103940732 A CN 103940732A CN 201410135881 A CN201410135881 A CN 201410135881A CN 103940732 A CN103940732 A CN 103940732A
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- clamp
- clamping plate
- holding tank
- clamping
- friction
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Abstract
The invention discloses a clamp device for a friction experiment of a drum type friction plate. A transversely arranged vertical clamp plate is an irregular flat plate; a section of arc-shaped stair surface which protrudes upwards is arranged on the upper edge of each vertical clamp plate; the left and right end parts of each upper edge are connected with two left and right vertical edges of the corresponding clamp plate; each two vertical edges are positioned on the inner sides of the two end parts of the corresponding upper edge; the stair surfaces of the upper edges of the two clamp plates are kept opposite and parallel to each other; the two clamp plates are integrally locked; the two upper edges define an arc-shaped clamping groove; two left and right opening ends of the clamping grooves are exposed out of the outer sides of two side edges, respectively; a vertical clamp strip is configured close to each of the two side edges below two ends of the clamp groove; positioning grooves are formed in two upper end parts of the two clamp strips towards two ends of the clamp groove; each positioning groove is internally provided with an elastic propping element which stretches out to the opening of the groove. The clamp device can sufficiently clamp the drum type friction plate according to experiment requirements, and is applicable to friction plates with different thicknesses, so that multiple purposes of one clamp are achieved; the device is good in connection with a universal friction experiment machine and convenient to assemble and disassemble, and the experiment can be accomplished by the device and the universal experiment machine.
Description
Technical field
The present invention relates to the friction field of only stopping of electric motor car, relate in particular to a kind of clamping device of cydariform friction disc friction test.
Background technology
At present, what the only braking friction disc of electric motor car generally adopted is cydariform friction disc, and its frictional behaviour directly has influence on the only braking performance of electric motor car.
The curved strip of cydariform friction disc, in the time that it is carried out to friction test, need to fully clamp along its arc outer rim, then utilizes friction plate to come and go the top of its arc outer rim of friction, thereby records coefficient of static friction, kinetic friction coefficient and wear hardness.In industry, lack at present the proprietary fixture for electric motor car cydariform friction disc friction test, on general frictional testing machine, can provide the device of clamping considerably less, and can not meet testing requirements.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of clamping device of cydariform friction disc friction test, and this clamping device arranges specially for the friction test of drum-type circular arc friction disc, thereby can utilize universal testing-machine to complete relevant friction test.
The present invention is achieved by the following technical solutions:
A clamping device for cydariform friction disc friction test, is characterized in that:
The vertical clamping plate of lateral arrangement are that abnormity is dull and stereotyped, and its upper limb is the one section of arc step surface projecting upwards, and left and right two perpendicular edge of upper limb end, left and right two ends and clamping plate join, and two perpendicular edge are positioned at inside end, upper limb two ends,
Keep the step surface of two clamping plate upper limbs relatively also concordant, two clamping plate interlockings are integrated, and two upper limbs surround the holding tank of an arc, and left and right two openends of holding tank are the outer both side edges outside that is exposed at respectively, two clamping plate can be in opposite directions/oppositely relatively move to reduce/increase the groove width of holding tank
Below holding tank two ends, configure respectively a vertical clamp bar near both side edges, arbitrary clamp bar and arbitrary clamping plate locking are integrated, end, clamp bar upper end is respectively just to end, upper limb two ends, offer locating slot towards holding tank two ends respectively in two ends, clamp bar upper end, the opening size of locating slot is more than or equal to the maximum open size of holding tank, packs an elasticity pressing element stretching out towards notch in locating slot into.
This clamping device is arranged on general frictional testing machine, and testing machine friction disc is positioned at directly over it, before test, first cydariform friction disc is packed in holding tank along holding tank vallecular cavity, and makes the outer rim of friction disc expose outside the thickness of holding tank notch outside 2～3mm; Then, two head part of cydariform friction disc being stretched out to below, the left and right two ends of holding tank do not pack two locating slots into, and compress the elasticity pressing element in groove; Finally, adjust the spacing between two clamping plates, make the both sides cell wall of holding tank tightly clamp cydariform friction disc, clamping completes, and test can start.
Further, two clamping plates can be by the locking element locking of multiple capable of regulating relative spacing, as buckle structure, elastic card claw etc., a kind of locking element simple in structure and that be easy to adjust is clamping screw pair of nut, two clamping plate are by least one pair of clamping screw pair of nut locking, avoid clamping plate to relatively rotate, on the correspondence position of clamping plate, offer respectively through hole, the bar portion of clamping screw is passed from through hole activity, and set nut is tightened on bar portion tail end.While adjusting holding tank groove width, only need to turn set nut.
Further again, elasticity pressing element can other have the structure of similar functions for reed, spring coil or volute spring etc.
Further again, on two clamping plates, correspondence is offered screw thread through hole is installed, and the screw rod configuring in grip of testing machine mounting seat is packed in screw thread installation through hole and can complete the clamping of this device on universal testing-machine, convenient and swift, and is beneficial to replacing fixture.
Beneficial effect of the present invention is:
1, can carry out abundant clamping to cydariform friction disc according to testing requirements, and can be applicable to the friction disc of different-thickness, realize a folder multiplex;
2, with being connected of general frictional testing machine, can utilize universal testing-machine to complete test, and easy accessibility;
3, simple and reliable for structure, easy to utilize.
Brief description of the drawings
Fig. 1 is clamping plate perspective view
Fig. 2 is clamping plate front elevation
Fig. 3 is lattice framing perspective view
Fig. 4 is this device perspective view
Fig. 5 is this device front elevation
Fig. 6 is that schematic diagram is cutd open depending on office in the right side of Fig. 5
Fig. 7 is a kind of installation way schematic diagram of this device on universal testing-machine
In Fig. 1～7: 1 is clamping plate, 101 is upper limb, and 102 is left perpendicular edge, and 103 is right perpendicular edge, and 104 install through hole for screw thread, and 2 is cydariform friction disc, and 3 is clamp bar, and 4 is holding tank, and 5 is locating slot, and 6 is elasticity pressing element, and 7 is friction block, and 8 is screw rod.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Fig. 1～2, the vertical clamping plate 1 of lateral arrangement are that abnormity is dull and stereotyped, the one section arc step surface of its upper limb 101 for projecting upwards, left and right two perpendicular edge 102 of upper limb 101 end, left and right two ends and clamping plate 1,103 join, and two perpendicular edge 102,103 are positioned at upper limb 101 inner sides, end, two ends.Clamping plate 1 first half symmetry has been offered two through holes, and Lower Half is offered screw thread through hole 104 is installed.
As shown in Fig. 3,6 and 7, vertically locating slot 5 has been offered in clamp bar 3 ends, upper end, packs an elasticity pressing element 6 stretching out towards notch in locating slot 5 into.Elasticity pressing element 6 in figure is spring coil.
As shown in Fig. 4,5 and 6, keep the step surface of two clamping plate upper limbs 101 relatively also concordant, two clamping plate 1 interlockings are integrated, two clamping plate 1 are by a pair of clamping screw pair of nut locking, the bar portion of clamping screw is passed from through hole activity, and set nut is tightened on bar portion tail end.Two upper limbs 101 surround the holding tank 4 of an arc, holding tank 4 left sides, right two openends are the outer both side edges 102 that is exposed at respectively, 103 outsides, two clamping plate 1 can be in opposite directions/oppositely relatively move to reduce/increase the groove width of holding tank 4, below holding tank 4 two ends, near both side edges 102, 103 configure respectively a vertical clamp bar 3, two clamp bars 3 are arranged on same clamping plate 1 by bolt, clamp bar 3 ends, upper end are respectively just to upper limb 101 ends, two ends, the opening size of locating slot 5 is more than or equal to the maximum open size of holding tank 4, position shown in the figure, two clamping plate 1 are close to mutually, now holding tank 4 groove width minimums.
It should be noted that, in instructions and claims, the position relationship of the upper and lower, left and right of carrying is only for convenience and a kind of relative position relationship using, not being the absolute limitations to described orientation, is exactly that this clamping device is arranged on the another kind of installation way on general frictional testing machine as shown in Figure 7.
In Fig. 7, the screw rod 8 of tester base screws in the screw thread of clamping plate 1 and installs in through hole 104, and friction block 7 is positioned under it, before test, first cydariform friction disc 2 is packed in holding tank 4 along holding tank 4 vallecular cavities, and make the outer rim of cydariform friction disc 2 expose outside the thickness of holding tank 4 notch outside 2～3mm; Then, two head part of cydariform friction disc 2 being stretched out to top, the left and right two ends of holding tank 4 do not pack in two locating slots 5, and compress the elasticity pressing element 6 in groove; Finally, adjust the spacing between two clamping plates 1, make the both sides cell wall of holding tank 4 tightly clamp cydariform friction disc 2, clamping completes, and test can start.
Claims (4)
1. a clamping device for cydariform friction disc friction test, is characterized in that:
The vertical clamping plate (1) of lateral arrangement are that abnormity is dull and stereotyped, the one section arc step surface of its upper limb (101) for projecting upwards, left and right two perpendicular edge (102 of upper limb (101) end, left and right two ends and clamping plate (1), 103) join, and two perpendicular edge (102,103) be positioned at inner side, upper limb (101) end, two ends
Keep the step surface of two clamping plate upper limbs (101) relatively also concordant, two clamping plate (1) interlocking is integrated, two upper limbs (101) surround the holding tank (4) of an arc, left and right two openends of holding tank (4) are the outer both side edges (102 that is exposed at respectively, 103) outside, two clamping plate (1) can be in opposite directions/oppositely relatively move to reduce/increase the groove width of holding tank (4)
In below, holding tank (4) two ends, near both side edges (102,103) configure respectively a vertical clamp bar (3), arbitrary clamp bar (3) is integrated with arbitrary clamping plate (1) locking, clamp bar (3) end, upper end is respectively just to upper limb (101) end, two ends, offer locating slot (5) towards holding tank (4) two ends respectively in two clamp bars (3) end, upper end, the opening size of locating slot (5) is more than or equal to the maximum open size of holding tank (4), packs an elasticity pressing element (6) stretching out towards notch in locating slot (5) into.
2. the clamping device of cydariform friction disc friction test according to claim 1, it is characterized in that: described two clamping plate (1) are by least one pair of clamping screw pair of nut locking, on the correspondence position of clamping plate (1), offer respectively through hole, the bar portion of clamping screw is passed from through hole activity, and set nut is tightened on bar portion tail end.
3. the clamping device of cydariform friction disc friction test according to claim 1, is characterized in that: described elasticity pressing element (6) is reed, spring coil or volute spring.
4. the clamping device of cydariform friction disc friction test according to claim 1, is characterized in that: the upper correspondence of described two clamping plates (1) is offered screw thread through hole (104) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135881.8A CN103940732B (en) | 2014-04-04 | 2014-04-04 | A kind of clamping device of cydariform friction plate friction test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135881.8A CN103940732B (en) | 2014-04-04 | 2014-04-04 | A kind of clamping device of cydariform friction plate friction test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103940732A true CN103940732A (en) | 2014-07-23 |
| CN103940732B CN103940732B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410135881.8A Expired - Fee Related CN103940732B (en) | 2014-04-04 | 2014-04-04 | A kind of clamping device of cydariform friction plate friction test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103940732B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115813A (en) * | 2015-07-23 | 2015-12-02 | 上海工程技术大学 | Automatic load varying mechanism used for multifunctional friction wear testing machine |
| CN105445098A (en) * | 2015-12-10 | 2016-03-30 | 江门气派摩托车有限公司 | Brake-shoe block clamp for shearing test |
| CN106018267A (en) * | 2016-07-06 | 2016-10-12 | 安徽宏锦包装设备有限公司 | Sliding block fixture for friction coefficient instrument |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2100073B2 (en) * | 1970-01-06 | 1976-09-23 | CV. Precision Tools Ltd., London | HOLDING AND ROTATING DEVICE FOR MATERIAL TESTING DEVICES, E.g. FOR SHAFTS, SHAFTS OR THE SAME |
| SU697864A1 (en) * | 1978-03-03 | 1979-11-15 | Украинское научно-производственное объединение целлюлозно-бумажной промышленности | Device for fastening flexible specimens to tensile-testing machine |
| US20060171579A1 (en) * | 2005-01-31 | 2006-08-03 | Hak-Joo Lee | Apparatus for measuring adhesive and frictional properties of polymer |
| CN201673100U (en) * | 2010-05-13 | 2010-12-15 | 桂林电子科技大学 | Experimental device for sliding friction and wear both on dry surface and lubricated surface |
| CN203870000U (en) * | 2014-04-04 | 2014-10-08 | 上海工程技术大学 | Holding device for friction test of drum-shaped friction plate |
-
2014
- 2014-04-04 CN CN201410135881.8A patent/CN103940732B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2100073B2 (en) * | 1970-01-06 | 1976-09-23 | CV. Precision Tools Ltd., London | HOLDING AND ROTATING DEVICE FOR MATERIAL TESTING DEVICES, E.g. FOR SHAFTS, SHAFTS OR THE SAME |
| SU697864A1 (en) * | 1978-03-03 | 1979-11-15 | Украинское научно-производственное объединение целлюлозно-бумажной промышленности | Device for fastening flexible specimens to tensile-testing machine |
| US20060171579A1 (en) * | 2005-01-31 | 2006-08-03 | Hak-Joo Lee | Apparatus for measuring adhesive and frictional properties of polymer |
| CN201673100U (en) * | 2010-05-13 | 2010-12-15 | 桂林电子科技大学 | Experimental device for sliding friction and wear both on dry surface and lubricated surface |
| CN203870000U (en) * | 2014-04-04 | 2014-10-08 | 上海工程技术大学 | Holding device for friction test of drum-shaped friction plate |
Non-Patent Citations (2)
| Title |
|---|
| H. JANG ET AL.: "《The effect of metal fibers on the friction performance of automotive brake friction materials》", 《WEAR》 * |
| 靳少杰 等.: "《鼓式制动器摩擦片-鼓接触点确定方法及变化规律分析》", 《汽车工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115813A (en) * | 2015-07-23 | 2015-12-02 | 上海工程技术大学 | Automatic load varying mechanism used for multifunctional friction wear testing machine |
| CN105445098A (en) * | 2015-12-10 | 2016-03-30 | 江门气派摩托车有限公司 | Brake-shoe block clamp for shearing test |
| CN106018267A (en) * | 2016-07-06 | 2016-10-12 | 安徽宏锦包装设备有限公司 | Sliding block fixture for friction coefficient instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103940732B (en) | 2016-08-24 |
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Granted publication date: 20160824 |
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