CN213121129U - Experimental mechanism for testing mechanical action durability of wedge brake driving cylinder - Google Patents
Experimental mechanism for testing mechanical action durability of wedge brake driving cylinder Download PDFInfo
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- CN213121129U CN213121129U CN202022324517.XU CN202022324517U CN213121129U CN 213121129 U CN213121129 U CN 213121129U CN 202022324517 U CN202022324517 U CN 202022324517U CN 213121129 U CN213121129 U CN 213121129U
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- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims abstract description 6
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000009795 derivation Methods 0.000 abstract description 3
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- 238000013461 design Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
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Abstract
The utility model discloses an experimental mechanism for testing the mechanical action durability of a wedge brake driving cylinder, which belongs to the technical field of wedge brake action detection tools, and comprises a platform detachably connected with a driving cylinder assembly; the limiting plates are symmetrically arranged at the two ends of the platform; the guide rails are connected with the two limiting plates; the axis of the guide rail is parallel to the motion direction of the piston mandril of the driving cylinder assembly, and the guide rail is connected with a sliding plate in a sliding way; the tool block group comprises a first tool block fixedly connected with the sliding plate and a second tool block in sliding connection with the limiting plate; the first block and the second block are provided with contact surfaces for simulating braking contact, and the contact surfaces extend from the first block side to the second block side in an inclined manner; the worker piece group still includes the lead screw, through lead screw drive second worker piece displacement so that change second worker piece and first worker piece contact position, the utility model discloses have and to observe the experimental result directly perceivedly, be favorable to measuring and data derivation, convenient to use's beneficial effect.
Description
Technical Field
The utility model relates to a wedge brake action detects instrument technical field, especially relates to an experimental mechanism of test wedge brake actuating cylinder mechanical action durability.
Background
At present, in the field of automobile braking, a chassis wedge brake has the advantages of small volume, light weight, easy maintenance and replacement and the like and is widely applied, and a core part of the wedge brake is a driving cylinder assembly;
in the prior art, enough bench tests are carried out before the whole vehicle is assembled to check whether the interior of a driving cylinder assembly and all parts of the driving cylinder assembly meet the requirements of strength, the durability of an automatic adjusting gap and the durability of mechanical action, and at present, in the bench test taking the driving cylinder assembly as a unit, the test data recording is difficult and tedious, the test method is single, and the durability and the force description of the structure of the driving cylinder assembly are slightly insufficient;
therefore, how to design a detection tool which can visually observe an experimental result, is beneficial to measurement and data derivation and is convenient to use with respect to the above problems becomes a technical problem to be solved urgently by related technical personnel.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect that prior art exists, providing a test wedge brake actuating cylinder mechanical action durability's experimental mechanism, have simple structure, convenient to use, the realization can the visual observation experiment result, the purpose of being convenient for measure and data derivation.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses a test wedge brake actuating cylinder mechanical action durability's experimental mechanism, include:
a platform detachably connected with a driving cylinder assembly through a bracket component;
the limiting plates are symmetrically arranged at two ends of the platform;
the guide rails are connected with the two limiting plates;
the axis of the guide rail is parallel to the motion direction of the piston mandril of the driving cylinder assembly, and the guide rail is connected with a sliding plate which is detachably connected with the piston mandril of the driving cylinder assembly in a sliding way; and
a work block group for simulating braking;
the tool block group comprises a first tool block fixedly connected with the sliding plate and a second tool block in sliding connection with the limiting plate;
the first block and the second block are formed with contact surfaces for simulating braking contact, the contact surfaces extending obliquely from the first block side to the second block side;
the tool block set further comprises a lead screw in screw transmission with the second tool block, and the lead screw drives the second tool block to move so as to change the contact position of the second tool block and the first tool block.
Furthermore, the support component comprises an upright post fixedly connected on the platform and a rack for hoisting the driving cylinder assembly;
the top of the upright post is detachably connected with the rack, and the driving cylinder assembly is connected with the brake air chamber into a whole through the rack.
Further, the frame is of a structure shaped like a Chinese character 'ji'.
Furthermore, the limiting plate is provided with a sliding component perpendicular to the motion direction of the piston mandril of the driving cylinder assembly;
the sliding assembly comprises a slide way arranged on the limiting plate and a sliding block formed on the second block;
the slide way is connected with the slide block in a sliding manner.
Furthermore, the platform is provided with a synchronous motor corresponding to the lower part of the second workpiece;
an output shaft of the synchronous motor is fixedly connected with the lead screw, and the lead screw is driven by the synchronous motor to rotationally drive the second tool block to move along the slideway.
Further, the lead screw is a ball screw.
In the technical scheme, the utility model provides a pair of test wedge brake actuating cylinder mechanical action durability's experimental mechanism, beneficial effect:
1. the experimental mechanism designed by the utility model comprises a platform, a limiting plate, a guide rail and a work block group, wherein the guide rail is connected with a sliding plate in a sliding way, and the work block group comprises a first work block and a second work block;
firstly, the first work block and the second work block are used for simulating braking contact, and the first work block, the second work block and the driving cylinder assembly are completely exposed outside, so that a series of mechanical movements and displacement between the first work block and the second work block can be observed more visually by a detector, the test structure is more convincing,
secondly, the first and second work blocks are exposed outside, so that a grating ruler and a displacement sensor are conveniently arranged on the first and second work blocks, and the grating ruler and the displacement sensor are connected with a computer, so that data can be conveniently exported;
2. the utility model discloses a support component has been laid on platform upper portion, and support component includes stand and frame, and the stand can be connected with the frame with dismantling, and the driving cylinder assembly passes through the frame to be connected as an organic wholely with brake chamber, through support component, makes this experimental mechanism realize only dismantling the frame and change different experimental pieces, simple structure, convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is an axonometric view of an experimental mechanism for testing the mechanical action durability of a wedge brake driving cylinder disclosed by the utility model;
fig. 2 is a cross-sectional view of an experimental mechanism for testing mechanical action durability of a wedge brake driving cylinder disclosed by the utility model;
fig. 3 is a partial enlarged view of an experimental mechanism for testing the mechanical action durability of a wedge brake driving cylinder disclosed by the present invention;
fig. 4 is a plan view of an experimental mechanism for testing mechanical action durability of a wedge brake driving cylinder disclosed in the present invention.
Description of reference numerals:
a position limiting plate 20; a slide 21;
a guide rail 30; a slide plate 31;
a tool block group 40; a first block 41; a second block 42; a contact surface 43; a lead screw 44;
a drive cylinder assembly 100; a return spring 101;
the brake chamber 200.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in FIGS. 1-4;
the utility model relates to a test wedge brake actuating cylinder mechanical action durability's experimental mechanism, include:
a platform 10 to which a driving cylinder assembly 100 is detachably attached through a bracket member;
the limiting plates 20 are symmetrically arranged at two ends of the platform 10;
a plurality of guide rails 30 connecting the two limiting plates 20;
the axis of the guide rail 30 is parallel to the motion direction of the piston mandril of the driving cylinder assembly 100, and the guide rail 30 is connected with a sliding plate 31 which is used for being detachable with the piston mandril of the driving cylinder assembly 100 in a sliding way; and
a work block set 40 for simulating braking;
the tool block group 40 comprises a first tool block 41 fixedly connected with the sliding plate 31 and a second tool block 42 slidably connected with the limiting plate 20;
the first block 41 and the second block 42 are formed with contact surfaces 43 for simulating braking contact, and the contact surfaces 43 extend from the first block 41 side to the second block 42 side obliquely;
the block set 40 further comprises a lead screw 44 in screw transmission with the second block 42, and the second block 42 is driven to displace through the lead screw 44 so as to change the contact position of the second block 42 and the first block 41.
Specifically, as shown in fig. 1, the structure includes a platform 10, a limiting plate 20, a guide rail 30, and a tool block group 40;
the center of the platform 10 is detachably connected with a driving cylinder assembly 100 through a support part, the driving cylinder assembly 100 comprises a T-shaped three-way cylinder body and two piston driving ejector rods, the piston driving ejector rods can be symmetrical and synchronously move in opposite directions in two horizontal pipe cavities of the three-way cylinder body, the push rods are pushed by a brake air chamber 200 in a vertical pipe cavity to be contracted, and then the two piston driving ejector rods are driven to extend out of the cylinder body, as shown in fig. 3, a return spring 101 is sleeved on each piston driving ejector rod, and when the brake air chamber 200 is released, the push rods are reset, and the left and right piston driving ejector rods are reset under the pulling of the return spring 101 and are contracted back into the cylinder body of the driving cylinder assembly 100;
referring to fig. 2, two ends of the platform 10 are symmetrically and fixedly connected with limiting plates 20, four guide rails 30 are fixedly connected between the two limiting plates 20, two of the four guide rails 30 are distributed in an upper layer and a lower layer, an axis of the guide rail 30 in the length direction is parallel to the motion direction of a piston mandril of the driving cylinder assembly 100, sliding plates 31 are slidably connected to two sides of the guide rail 30 on the driving cylinder assembly 100, and the sliding plates 31 can be detachably connected with the piston driving mandril of the driving cylinder assembly 100;
during detection, the brake air chamber 200 works, the push rod pushes the two piston driving ejector rods to extend out of the cylinder body, the piston driving ejector rods push the sliding plate 31 to be far away from the driving cylinder assembly 100 along the guide rail 30, after braking of the brake air chamber 200 is relieved, the push rod resets, the left piston driving ejector rod and the right piston driving ejector rod drive the sliding plate 31 to reset under the pulling of the reset spring 101, namely, the driving cylinder assembly 100 completes one experiment through air intake-braking-resetting cyclic action, and the durability of mechanical movement is verified through setting experiment times;
referring to fig. 2 and 4, a work block group 40 is arranged between the sliding plate 31 and the limiting plate 30, and the work block group 40 is used for simulating a braking condition, and referring to fig. 2, the work block group 40 comprises a first work block 41 and a second work block 42;
the slide plate 31 is fixedly connected with a first block 41, the limit plate 20 is connected with a second block 42 in a sliding way, the first block 41 is contacted with the second block 42 through a contact surface 43, the contact surface 43 extends upwards from the first block 41 side to the second block 42 side in an inclined way, moreover, a gap is reserved between the contact surfaces 43 of the first block 41 and the second block 42 and is used for simulating the axial movement stroke gap of the driving cylinder assembly 100, according to the theoretical design of the driving cylinder assembly 100, when the piston of the driving cylinder assembly 100 drives the mandril to extend out for the maximum stroke, the first work block 41 synchronously moves to the maximum limit position, the contact surfaces 43 of the first work block 41 and the second work block 42 are just jointed, the reserved gap between the two contact surfaces 43 disappears, when the friction plate of the brake is worn due to long-term friction, the reserved gap between the two contact surfaces 43 is enlarged, so that whether the driving cylinder assembly 100 can realize the function of gap compensation can be verified;
referring to fig. 4, the limiting plate 20 is provided with a sliding assembly perpendicular to the moving direction of the piston rod of the driving cylinder assembly 100; the sliding assembly comprises a slideway 21 arranged on the limit plate 20 and a sliding block formed on the second block 42; the slide 21 is slidably connected to the slider. Specifically, the limiting plate 20 is vertically provided with a slide rail 21, the slide rail 21 and the slide block are both in a T-shaped structure, in the structure, the limiting plate 20 is vertically connected with a second workpiece 42 in a sliding manner through the slide rail 21, as shown in fig. 2, a lead screw 44 is arranged below the platform 10 corresponding to the second workpiece 42, the lead screw 44 is in screw transmission with the second workpiece 42 to drive the lead screw 44 to rotate, the lead screw 44 drives the second workpiece 42 to move up and down along the slide rail 21, and when the lead screw 44 drives the second workpiece 42 to move down, a gap between contact surfaces 43 of the first workpiece 41 and the second workpiece 42 is increased, so that a working condition form after the friction plate of the brake is worn due to long-term friction is simulated;
the test mechanism simulates braking contact through the first work block 41 and the second work block 42, and is connected with the two limiting plates 20 through the guide rail 30, so that the first work block 41, the second work block 42 and the driving cylinder assembly 100 are completely exposed outside, a series of mechanical movements can be observed more visually by detection personnel, the test structure is more convincing, in addition, the first work block 41 and the second work block 42 are exposed outside, a grating ruler and a displacement sensor are conveniently arranged on the first work block 41 and the second work block 42, the grating ruler and the displacement sensor are connected with a computer, the second work block 42 is measured to be located at a distance through the grating ruler and the displacement sensor, and the evaluation on the test result is facilitated;
referring to fig. 2, preferably, the support member includes a column 11 attached to the platform 10 and a frame 12 for lifting the driving cylinder assembly 100; the top of the upright post 11 is detachably connected with a frame 12, and the driving cylinder assembly 100 is connected with the brake chamber 200 into a whole through the frame 12. Preferably, the housing 12 is of a generally zigzag configuration. In the structure, a bracket component connects a driving cylinder assembly 100 and a brake air chamber 200 into a whole through a frame 12, the lower part of the frame 12 is detachably connected with an upright post 11 through a bolt component, and the driving cylinder assembly 100 and the brake air chamber 200 are convenient to integrally assemble and disassemble through the frame 12;
preferably, the platform 10 is provided with a synchronous motor corresponding to the lower part of the second block 42; an output shaft of the synchronous motor is fixedly connected with the lead screw 44, and the lead screw 44 is driven by the synchronous motor to rotationally drive the second block 42 to displace along the slideway 21. Preferably, the lead screw 44 is a ball screw.
In the technical solution, the utility model provides an experimental mechanism for testing the mechanical action durability of a wedge brake driving cylinder;
the experimental principle is as follows:
during the experiment, the first work block 41 and the second work block 42 transmit pressure through the contact surface 43, so that the second work block 42 bears the driving force of a horizontal component and a vertical component, the second work block 42 is driven by the screw 44 and the servo motor to synchronously cooperate and descend to a preset distance while moving horizontally, a primary air inlet braking process is completed, the process that the first work block 41 and the second work block 42 are contacted is a braking process simulating the primary contact between a brake friction plate and a brake drum of the whole vehicle, and after the braking is released, the first work block 41 is pulled back to the original position through the external return spring 101, and a primary braking returning process is completed;
when the driving cylinder assembly 100 is subjected to air inlet braking and returns for a certain number of times, the driving cylinder assembly 100 needs to complete compensation of an excess clearance, at the moment, the ball screw 44 drives the second tool block 42 to move downwards for a certain distance, and as the first tool block 41 and the second tool block 42 are both in a right-angled trapezoid structure, after the second tool block 42 moves downwards, a transverse clearance between contact surfaces 43 of the first tool block 41 and the second tool block 42 is enlarged according to a certain proportion, at the moment, the condition of a friction plate of a brake of the whole vehicle after being worn is simulated, and as the driving cylinder has the functions of self-adjusting and excess clearance elimination, the driving cylinder is braked for a plurality of times and the excess clearance is timely supplemented and self-adjusted, so that whether the self-adjusting function is completed or not is detected;
the brake air chamber 200 is connected with an external equipment controller, the controller controls the inflation valve and the exhaust valve of the brake air chamber 200 to be opened and closed regularly according to a preset timing period in a circulating and regular mode, so that the left piston mandril and the right piston mandril of the driving cylinder assembly 10 are driven to perform stretching and withdrawing actions regularly according to a given time period by controlling the inflation period and the exhaust period of the brake air chamber 200, the controller also controls the stepping motor according to preset control parameters to realize accurate control on the displacement of the ball screw 44, in addition, the controller also counts and stores the action period of the brake air chamber 200, and when the preset action times are reached, the automatic counting and storing are carried out;
after the driving cylinder assembly 100 is cycled for a plurality of times, the driving cylinder assembly 100 can be disassembled, and the problems of abrasion and fatigue of internal parts in the cycling action for a plurality of times are observed to obtain an experimental conclusion;
has the advantages that:
1. the experimental mechanism designed by the utility model comprises a platform, a limiting plate, a guide rail and a work block group, wherein the guide rail is connected with a sliding plate in a sliding way, and the work block group comprises a first work block and a second work block;
firstly, the first work block and the second work block are used for simulating braking contact, and the first work block, the second work block and the driving cylinder assembly are completely exposed outside, so that a series of mechanical movements and displacement between the first work block and the second work block can be observed more visually by a detector, the test structure is more convincing,
secondly, the first and second work blocks are exposed outside, so that a grating ruler and a displacement sensor are conveniently arranged on the first and second work blocks, and the grating ruler and the displacement sensor are connected with a computer, so that data can be conveniently exported;
2. the utility model discloses a support component has been laid on platform upper portion, and support component includes stand and frame, and the stand can be connected with the frame with dismantling, and the driving cylinder assembly passes through the frame to be connected as an organic wholely with brake chamber, through support component, makes this experimental mechanism realize only dismantling the frame and change different experimental pieces, simple structure, convenient to use.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (6)
1. An experimental mechanism for testing mechanical action durability of a wedge brake driving cylinder is characterized by comprising:
a platform (10) to which a drive cylinder assembly (100) is detachably connected via a bracket member;
the limiting plates (20) are symmetrically arranged at two ends of the platform (10);
a plurality of guide rails (30) connecting the two limiting plates (20);
the axis of the guide rail (30) is parallel to the motion direction of a piston mandril of the driving cylinder assembly (100), and the guide rail (30) is connected with a sliding plate (31) which is detachably connected with the piston mandril of the driving cylinder assembly (100) in a sliding way; and
a set of work blocks (40) for simulating braking;
the tool block group (40) comprises a first tool block (41) fixedly connected with the sliding plate (31) and a second tool block (42) in sliding connection with the limiting plate (20);
the first block (41) and the second block (42) are formed with contact surfaces (43) for simulating braking contact, the contact surfaces (43) extending from the first block (41) side to the second block (42) side obliquely;
the tool block group (40) further comprises a lead screw (44) in screw transmission with the second tool block (42), and the second tool block (42) is driven to displace through the lead screw (44) so as to change the contact position of the second tool block (42) and the first tool block (41).
2. The experimental mechanism for testing the mechanical action durability of the wedge brake driving cylinder is characterized in that;
the support component comprises an upright post (11) fixedly connected on the platform (10) and a frame (12) used for hoisting a driving cylinder assembly (100);
the top of the upright post (11) is detachably connected with the rack (12), and the driving cylinder assembly (100) is connected with the brake air chamber (200) into a whole through the rack (12).
3. The experimental mechanism for testing the mechanical action durability of the wedge brake driving cylinder is characterized in that;
the frame (12) is of a structure in a shape of Chinese character 'ji'.
4. The experimental mechanism for testing the mechanical action durability of the wedge brake driving cylinder is characterized in that;
the limiting plate (20) is provided with a sliding assembly in a direction perpendicular to the motion direction of the piston mandril of the driving cylinder assembly (100);
the sliding assembly comprises a slide way (21) arranged on the limiting plate (20) and a sliding block formed on the second block (42);
the slide way (21) is connected with the slide block in a sliding way.
5. The experimental mechanism for testing the mechanical action durability of the wedge brake driving cylinder is characterized in that;
the lower part of the platform (10) corresponding to the second work block (42) is provided with a synchronous motor;
an output shaft of the synchronous motor is fixedly connected with the lead screw (44), and the lead screw (44) is driven by the synchronous motor to rotationally drive the second tool block (42) to move along the slide way (21).
6. The experimental mechanism for testing the mechanical action durability of the wedge brake driving cylinder is characterized in that;
the lead screw (44) is a ball screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022324517.XU CN213121129U (en) | 2020-10-19 | 2020-10-19 | Experimental mechanism for testing mechanical action durability of wedge brake driving cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022324517.XU CN213121129U (en) | 2020-10-19 | 2020-10-19 | Experimental mechanism for testing mechanical action durability of wedge brake driving cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN213121129U true CN213121129U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022324517.XU Active CN213121129U (en) | 2020-10-19 | 2020-10-19 | Experimental mechanism for testing mechanical action durability of wedge brake driving cylinder |
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| Country | Link |
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- 2020-10-19 CN CN202022324517.XU patent/CN213121129U/en active Active
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Address after: No.2899, Yumin Road, Chaoyang District, Changchun City, Jilin Province Patentee after: Changchun Fusheng Tebike Brake Co.,Ltd. Address before: No.2899, Yumin Road, Chaoyang District, Changchun City, Jilin Province Patentee before: CHANGCHUN FAWSN TEBIKE BRAKE Co.,Ltd. |