CN206258326U - Train brake pad testing device for shear strength - Google Patents
Train brake pad testing device for shear strength Download PDFInfo
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- CN206258326U CN206258326U CN201621378817.3U CN201621378817U CN206258326U CN 206258326 U CN206258326 U CN 206258326U CN 201621378817 U CN201621378817 U CN 201621378817U CN 206258326 U CN206258326 U CN 206258326U
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- ambulatory splint
- shear strength
- brake lining
- testing device
- strap
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Abstract
A kind of train brake pad testing device for shear strength, including：Base, with vertical installation surface；Pressure head, the connecting portion with the force side for connecting the universal testing machine above the base, and located at the adaptable pressure unit of pressure head bottom, shape and brake lining steel back unilateral profile；Fixture, in vertical installation surface, including the strap and ambulatory splint that are oppositely arranged, ambulatory splint can be moved towards or away from strap, the grasping part for being suitable to clamp brake lining coattail board is formed between strap and ambulatory splint, grasping part is oppositely arranged with pressure unit, and when brake lining coattail board is in clamped condition, the side of brake lining steel back can extend into pressure unit；Actuator, in vertical installation surface, for driving ambulatory splint to be moved towards or away from strap.The train brake pad testing device for shear strength that the utility model is provided, dedicated for test brake lining coattail board and the shear strength of steel back, simple structure, it is easy to operate.
Description
Technical field
The utility model is related to shear strength test technical field, and in particular to a kind of train brake pad shear strength test dress
Put.
Background technology
The brake lining of bullet train generally includes steel back and is installed on some friction pieces of steel back side, the opposite side of steel back
The coattail board for caliper clamping is then provided with, during train operation, the bonding strength of coattail board and steel back is in train braking
When play vital connection function, coattail board is separated with steel back can cause train braking to fail.Current UIC543 standards are only
Friction piece itself shear strength is clearly required, the technology cannot detect the bonding strength of brake lining coattail board and steel back.
The test fixture for detecting brake lining steel back and friction piece bond strength is also occurred in that in the prior art, for example China
Patent document CN201724863U discloses a kind of brake lining steel back and friction piece bond strength test fixture, including pressure head, gland
And base, pressure head top surface and bottom surface are flat, and parallel, and gland is bolt-connected on base, for by brake lining sample
It is fastened in fixture, base is bolt-connected on the pressurization platform of universal testing machine, but the prior art cannot be used
In detection brake lining coattail board and the shear strength of steel back.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome testing device for shear strength of the prior art not
The defect of the shear strength that can be used to detecting brake lining coattail board and steel back, so as to provide a kind of dedicated for test brake lining coattail board
With the train brake pad testing device for shear strength of the shear strength of steel back.
The technical solution adopted in the utility model is as follows：
A kind of train brake pad testing device for shear strength, including：Base, with vertical installation surface；Pressure head, with for even
Connect the connecting portion of the force side of universal testing machine above the base, and located at the pressure head bottom, shape with
The adaptable pressure unit of the unilateral profile of brake lining steel back；Fixture, in the vertical installation surface, including the fixation being oppositely arranged
Clamping plate and ambulatory splint, the ambulatory splint can be moved towards or away from the strap, the strap and institute
Formation is suitable to clamp the grasping part of brake lining coattail board between stating ambulatory splint, and the grasping part is relative with the pressure unit to be set
Put, when the brake lining coattail board is in clamped condition, the side of the brake lining steel back can extend into the pressure unit；Drive
Part, in the vertical installation surface, for driving the ambulatory splint to be moved towards or away from the strap.
The ambulatory splint includes the fixing end being articulated with the vertical installation surface, and can be along described vertically-mounted
Facing to or away from the strap reciprocally swinging movable end.
The movable end forms waist-shaped hole, and the connection movable end and the vertical installation surface are provided with the waist-shaped hole
Fastener, the size of the size of the fastener less than the waist-shaped hole.
The strap and the ambulatory splint are rectangular slab, and the fixing end is towards the side of the grasping part
Form the resigning breach for avoiding the fixing end from being interfered with the brake lining dovetail.
The strap and the ambulatory splint are angled with vertical direction to be obliquely installed.
The actuator includes：Driving wheel, be rotatably arranged in the ambulatory splint relatively described grasping part it is another
Side, the edge of the driving wheel and the ambulatory splint against setting, and the center of rotation of the driving wheel and the drive
The center of circle of driving wheel shifts to install, so that the driving wheel is rotated forward or can promote the ambulatory splint towards described solid when inverting
Clamp plate reciprocally swinging, what driving wheel reversion or can eliminate when rotating forward acted on the ambulatory splint pushes power；Drive
Fixed handle, is connected to the driving wheel, for driving the driving wheel to rotate.
The driving wheel is set near the movable end.
The connecting portion is cylinder-shaped joint, and the cylinder-shaped joint forms radial direction through hole, and the cylinder-shaped joint is fitted
In in the annular jaw of force side for stretching into the universal testing machine, the two ends of the annular jaw correspondence radial direction through hole set
There are two through holes, the cylinder-shaped joint and the annular jaw are suitable to by being arranged in the radial direction through hole and described two
Latch connection between through hole.
It is provided with the fixture and the actuator the positive and negative both sides specular of the vertical installation surface.
Technical solutions of the utility model, have the following advantages that：
1. the utility model provide train brake pad testing device for shear strength, including the base with vertical installation surface with
And the pressure head above base, pressure head bottom has the adaptable pressure unit of the unilateral profile of shape and brake lining steel back, vertically
It is additionally provided with the fixture for clamping brake lining coattail board on mounting surface, fixture includes the strap being oppositely arranged and being capable of direction
Or away from the ambulatory splint of strap motion, also include driving the actuator of ambulatory splint motion, brake lining in vertical installation surface
Coattail board is put into the grasping part formed between strap and ambulatory splint, when actuator drives ambulatory splint direction fixed
Clamping plate motion makes the side of brake lining steel back stretch into pressure unit, the force side force band of universal testing machine to clamp brake lining coattail board
Dynamic head is pushed towards brake lining steel back, and the bond strength to brake lining steel back and brake lining coattail board carries out shearing test, completes test
Afterwards, ambulatory splint discharges brake lining coattail board away from strap.
2. the train brake pad testing device for shear strength that the utility model is provided, ambulatory splint is described vertical including being articulated with
Fixing end on mounting surface, and can be formed towards or away from the movable end of the strap reciprocally swinging, movable end
Waist-shaped hole, is provided with the fastener of the connection movable end and the vertical installation surface, due to the fastener in the waist-shaped hole
Size less than the waist-shaped hole size, make ambulatory splint be driven part drive when, movable end can be towards strap
Swing, when driving force is eliminated, movable end can hand-reset, the activity of movable end obtains the limitation of waist-shaped hole, without increasing
Plus the fixed structure of movable end so that fixture overall structure is simple, manufactures easy for installation, simple operation.
3. the train brake pad testing device for shear strength that the utility model is provided, the strap and the ambulatory splint
Rectangular slab is, rectangular slab is easy to machine-shaping, resigning breach is formed towards the side of grasping part in fixing end, can kept away
Exempt from fixing end to be interfered with brake lining dovetail.
4. the train brake pad testing device for shear strength that the utility model is provided, the strap and the activity folder
Plate is angled with vertical direction to be obliquely installed, on the one hand, cause brake lining in vertical to placement, brake lining to being obliquely installed vertically
Pressure unit is stretched into one end on steel back length direction, laterally disposed compared to brake lining, and the pressure head materials of this set are more saved, and takes
Space is smaller, and on the other hand, the fixture being obliquely installed increased the frictional force to brake lining coattail board, advantageously reduces and fixture is pressed from both sides
The requirement of clamp force, it is to avoid brake lining occurs and slides.
5. the train brake pad testing device for shear strength that the utility model is provided, actuator includes driving wheel and drives hand
Handle, the center of rotation of driving wheel is shifted to install with the center of circle of driving wheel so that during driving wheel positive and negative rotation, center of rotation to activity
The distance of clamping plate gradually increases or reduces, and promotes ambulatory splint to be moved towards strap, or pushed to ambulatory splint
Power is eliminated, it is only necessary to which shake driving handle realizes the swing of ambulatory splint, rapid operation, it is easy to left-hand seat manually.
6. the train brake pad testing device for shear strength that the utility model is provided, the tow sides mirror of the vertical installation surface
As being symmetrically provided with the fixture and the actuator, because brake lining is used in pairs, and steel back is curved, a pair of steel of brake lining
The relative curved arc of the back of the body, when fixture is obliquely installed, the pressure unit of pressure head cannot simultaneously match a pair of steel back profiles of brake lining, therefore, mirror
Positive and negative both sides fixture and actuator as being symmetrically disposed on the vertical installation surface of base, can simultaneously clamp a pair of brake linings,
The pressure unit of pressure head can carry out shear strength test, convenience and high-efficiency to a pair of brake linings respectively.
Brief description of the drawings
In order to illustrate more clearly of the utility model specific embodiment or technical scheme of the prior art, below will be right
The accompanying drawing to be used needed for specific embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some implementation methods of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
The front view of the train brake pad testing device for shear strength that Fig. 1 is provided for specific embodiment of the present utility model；
Fig. 2 is the front view of the train brake pad testing device for shear strength clamping brake lining shown in Fig. 1.
Description of reference numerals：
1- bases；2- pressure heads；21- connecting portions；22- pressure units；3- straps；4- ambulatory splints；5- driving wheels；6- drives
Fixed handle；61- driving handle relaxation states；62- driving handles force state；7- brake lining coattail boards；8- brake lining steel backs.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
It is term " " center ", " on ", D score, "left", "right", " perpendicular, it is necessary to explanation in description of the present utility model
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " are, based on orientation shown in the drawings or position relationship, to be only
Described with simplified for the ease of description the utility model, must had rather than the device or element for indicating or implying meaning specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As long as additionally, technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can just be combined with each other.
The front view of the train brake pad testing device for shear strength that Fig. 1 is provided for specific embodiment of the present utility model；
Fig. 2 is the front view of the train brake pad testing device for shear strength clamping brake lining shown in Fig. 1.As depicted in figs. 1 and 2, this implementation
The train brake pad testing device for shear strength that mode is provided, including the base 1 with vertical installation surface and located at the top of base 1
Pressure head 2, the bottom of pressure head 2 has the adaptable pressure unit 22 of the unilateral profile of shape and brake lining steel back 8, in vertical installation surface also
It is provided with the fixture for clamping brake lining coattail board 7, fixture includes the strap 3 being oppositely arranged and can be towards or away from solid
The ambulatory splint 4 of the motion of clamp plate 3, also includes driving the actuator of the motion of ambulatory splint 4, brake lining coattail board in vertical installation surface
7 are put into the grasping part formed between strap 3 and ambulatory splint 4, when actuator drives ambulatory splint 4 towards geometrical clamp
Plate 3 moves to clamp brake lining coattail board 7, the side of brake lining steel back 8 is stretched into pressure unit 22, the force side force of universal testing machine
Band dynamic head 2 is pushed along 8 institute's planes of brake lining steel back towards brake lining steel back 8, the combination to brake lining steel back 8 and brake lining coattail board 7
Intensity carries out shearing test, and after completing test, ambulatory splint 4 is away from strap 3, release brake lining coattail board 7.
Specifically, fixture and actuator are provided with the positive and negative both sides specular of the vertical installation surface of base 1, it is fixed
Clamping plate 3 and vertical direction are angularly obliquely installed in vertical installation surface, the interval relative with strap 3 of ambulatory splint 4
Set, ambulatory splint 4 includes the fixing end being articulated with vertical installation surface, and can be along vertical installation surface towards or away from admittedly
The movable end of the reciprocally swinging of clamp plate 3, movable end forms waist-shaped hole, and the connection movable end and institute are provided with the waist-shaped hole
The fastener of vertical installation surface is stated, the size of the size less than the waist-shaped hole of the fastener is driven ambulatory splint 4
When part drives, movable end can swing towards strap 3, and when driving force is eliminated, movable end being capable of hand-reset, movable end
Activity obtain the limitation of waist-shaped hole, the fixed structure without increasing movable end so that fixture overall structure is simple, manufacture peace
Dress is convenient, simple operation；And strap 3 and ambulatory splint 4 are angled with vertical direction to be obliquely installed, a side
Face, vertically to be obliquely installed so that brake lining in vertically to placement, pressure unit 22 is stretched into the one end on the length direction of brake lining steel back 8,
Laterally disposed compared to brake lining, the materials of pressure head 2 of this set are more saved, and are taken up room smaller, on the other hand, the folder being obliquely installed
Tool increased the frictional force to brake lining coattail board 7, advantageously reduce the requirement to clamp power, it is to avoid brake lining occurs and slides.
The fixture and the actuator are provided with, because brake lining is paired the tow sides specular of vertical installation surface
Use, and steel back is curved, with respect to curved arc, when fixture is obliquely installed, the pressure unit 22 of pressure head 2 cannot be same for a pair of steel backs of brake lining
When match a pair of steel back profiles of brake lining, therefore, be arranged at the positive and negative both sides fixture of the vertical installation surface of base 1 specular
And actuator, a pair of brake linings can be simultaneously clamped, the pressure unit 22 of pressure head 2 can carry out shear strength to a pair of brake linings respectively
Test, convenience and high-efficiency.It should be noted that in other embodiments, fixture and actuator can be arranged at vertically-mounted
Face is unilateral, and now fixture is vertically or horizontally set.
The strap 3 that present embodiment is provided is rectangular slab, the fixing end direction of ambulatory splint 4 with ambulatory splint 4
The side of the grasping part forms the resigning breach for avoiding the fixing end from being interfered with the brake lining dovetail, it is necessary to say
Bright, strap 3 is not limited to rectangular slab with the shape of ambulatory splint 4, can also be two ends in other embodiments
In the Long Circle plate of round end, the radian of round end can avoid producing interference with brake lining just.
The ambulatory splint 4 that present embodiment is provided is articulated with vertical installation surface, movable end reciprocally swinging reality by fixing end
Now to the clamping or release of brake lining coattail board 7, in other embodiments, ambulatory splint 4 may also rely on slide rail with chute
Coordinate, slide closer or far from strap 3, realize the size variation of grasping part；Or by the cooperation of pulley and chute
Realize moving back and forth for ambulatory splint 4.
Specifically, the movable end of ambulatory splint 4 is provided with the drive being installed in vertical installation surface away from the side of grasping part
Driving wheel 5, and the driving handle 6 being connected with driving wheel 5, the edge of driving wheel 5 and the ambulatory splint 4 against setting, drive
In the first quartile of driving wheel 5, shake driving handle 6 illustrates side clockwise to the center of rotation of wheel 5 so that driving wheel 5 is positive
To driving handle force state 62 is turned to, center of rotation gradually increases to the distance of ambulatory splint 4, promotes the direction of ambulatory splint 4
Strap 3 is moved, and clamps brake lining coattail board 7；Driving wheel 5 is reversely illustrated counterclockwise to driving handle relaxation state
61, center of rotation is gradually reduced to the distance of ambulatory splint 4, and driving wheel 5 is eliminated to the power that pushes of ambulatory splint 4, ambulatory splint 4
Hand-reset, release brake lining coattail board 7.
Above-mentioned driving wheel 5 can set latch-up structure, the turned position for locking driving wheel 5, can also rely on driving wheel 5
Rotary resistance, and the locking that turned position is realized with the frictional force of ambulatory splint 4.
The connecting portion 21 on the top of pressure head 2 is a cylinder-shaped joint, and the cylinder-shaped joint forms radial direction through hole, described
Cylinder-shaped joint is adapted to extend into the annular jaw of the force side of the universal testing machine, the annular jaw correspondence radial direction
The two ends of through hole are provided with two through holes, and the cylinder-shaped joint is suitable to by being arranged in the radial direction through hole with the annular jaw
And the latch connection between described two through holes.
The train brake pad testing device for shear strength that present embodiment is provided, workflow is as follows：Horizontal positioned base 1,
The force side lower section of universal testing machine is placed in, driving handle 6 to driving handle relaxation state 61 is rotated, brake lining is installed, it is ensured that brake lining
Coattail board 7 rotates driving handle 6 to driving handle force state 62, it is ensured that brake lining is clamped, peace completely into the grasping part of fixture
Dress pressure head 2, it is ensured that pressure head 2 is located at same perpendicular with brake lining steel back 8, is tested, record brake lining coattail board 7 and brake lining steel
The shear strength of the back of the body 8, after off-test, removes pressure head 2, and driving handle 6 is turned into driving handle relaxation state 61, removes lock
Piece.
Obviously, above-mentioned implementation method is only intended to clearly illustrate example, and not to the restriction of implementation method.
For those of ordinary skill in the field, the change of other multi-forms can also be made on the basis of the above description
Or change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out
Or among variation is still in the protection domain of the utility model creation.
Claims (9)
1. a kind of train brake pad testing device for shear strength, it is characterised in that including：
Base (1), with vertical installation surface；
Pressure head (2), the connecting portion (21) with the force side for connecting the universal testing machine above the base (1),
And located at the adaptable pressure unit (22) of the pressure head (2) bottom, shape and brake lining steel back (8) unilateral profile；
Fixture, in the vertical installation surface, including the strap (3) and ambulatory splint (4) being oppositely arranged, the work
Dynamic clamping plate (4) can be moved towards or away from the strap (3), the strap (3) and the ambulatory splint (4) it
Between form the grasping part for being suitable to clamp brake lining coattail board (7), the grasping part is oppositely arranged with the pressure unit (22), when
When the brake lining coattail board (7) is in clamped condition, the side of the brake lining steel back (8) can extend into the pressure unit (22)；
Actuator, in the vertical installation surface, for driving the ambulatory splint (4) towards or away from the strap
(3) move.
2. train brake pad testing device for shear strength according to claim 1, it is characterised in that the ambulatory splint (4)
Including the fixing end being articulated with the vertical installation surface, and can be along the vertical installation surface towards or away from the fixation
The movable end of clamping plate (3) reciprocally swinging.
3. train brake pad testing device for shear strength according to claim 2, it is characterised in that the movable end is formed
Waist-shaped hole, is provided with the fastener of the connection movable end and the vertical installation surface, the chi of the fastener in the waist-shaped hole
The very little size less than the waist-shaped hole.
4. train brake pad testing device for shear strength according to claim 3, it is characterised in that the strap (3)
Be rectangular slab with the ambulatory splint (4), the fixing end formed towards the side of the grasping part avoid it is described solid
The resigning breach that fixed end interferes with the brake lining dovetail.
5. the train brake pad testing device for shear strength according to any one of claim 1-4, it is characterised in that described solid
Clamp plate (3) and the ambulatory splint (4) are angled with vertical direction to be obliquely installed.
6. the train brake pad testing device for shear strength according to any one of claim 2-4, it is characterised in that the drive
Moving part includes：
Driving wheel (5), is rotatably arranged in the opposite side of the relatively described grasping part of the ambulatory splint (4), the driving
Take turns (5) edge and the ambulatory splint (4) against setting, and the driving wheel (5) center of rotation and the driving wheel
(5) the center of circle shifts to install, so that the driving wheel (5) is rotated forward or can promote the ambulatory splint (4) direction when inverting
Strap (3) reciprocally swinging, can eliminate when driving wheel (5) reversion or rotating forward and act on the ambulatory splint
(4) push power；
Driving handle (6), is connected to the driving wheel (5), for driving the driving wheel (5) to rotate.
7. train brake pad testing device for shear strength according to claim 6, it is characterised in that the driving wheel (5) is leaned on
The nearly movable end is set.
8. the train brake pad testing device for shear strength according to any one of claim 1-4, it is characterised in that the company
Socket part (21) is cylinder-shaped joint, and the cylinder-shaped joint forms radial direction through hole, and the cylinder-shaped joint is adapted to extend into described
In the annular jaw of the force side of universal testing machine, the two ends of the annular jaw correspondence radial direction through hole are provided with two and lead to
Hole, the cylinder-shaped joint and the annular jaw are suitable to by being arranged between the radial direction through hole and described two through holes
Latch connection.
9. train brake pad testing device for shear strength according to claim 5, it is characterised in that the vertical installation surface
It is provided with the fixture and the actuator positive and negative both sides specular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378817.3U CN206258326U (en) | 2016-12-15 | 2016-12-15 | Train brake pad testing device for shear strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621378817.3U CN206258326U (en) | 2016-12-15 | 2016-12-15 | Train brake pad testing device for shear strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206258326U true CN206258326U (en) | 2017-06-16 |
Family
ID=59029189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621378817.3U Active CN206258326U (en) | 2016-12-15 | 2016-12-15 | Train brake pad testing device for shear strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206258326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702984A (en) * | 2017-10-27 | 2018-02-16 | 无锡汉神电气股份有限公司 | A kind of grip device for detecting sample shearing strength |
-
2016
- 2016-12-15 CN CN201621378817.3U patent/CN206258326U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702984A (en) * | 2017-10-27 | 2018-02-16 | 无锡汉神电气股份有限公司 | A kind of grip device for detecting sample shearing strength |
| CN107702984B (en) * | 2017-10-27 | 2024-01-23 | 无锡汉神电气股份有限公司 | Clamp device for detecting shear strength of sample |
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