CN203148661U - Testing apparatus used for evaluating explosion-proof performance of explosion-proof crane wheel track friction - Google Patents
Testing apparatus used for evaluating explosion-proof performance of explosion-proof crane wheel track friction Download PDFInfo
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- CN203148661U CN203148661U CN2013201022992U CN201320102299U CN203148661U CN 203148661 U CN203148661 U CN 203148661U CN 2013201022992 U CN2013201022992 U CN 2013201022992U CN 201320102299 U CN201320102299 U CN 201320102299U CN 203148661 U CN203148661 U CN 203148661U
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Abstract
The utility model discloses a testing apparatus used for evaluating explosion-proof performance of explosion-proof crane wheel track friction. The testing apparatus comprises a sealed box body, and a wheel track main body portion disposed in the box body, wherein a transmission portion is disposed in the box body; a brake portion is disposed outside the box body; the wheel track main body includes a center wheel and an annular wheel track disposed at the peripheral of the center wheel; and a driving loading portion connected with the wheel track portion is further disposed outside the box body. The testing apparatus used for evaluating explosion-proof performance of explosion-proof crane wheel track friction performs driving loading on the wheel track main body portion in the sealed box body through the driving loading portion, controls interaction during a running process of the center wheel and the annular wheel track by changing a loading amount, so that various working conditions during a explosion-proof crane wheel track friction process can be simulated, and a test of explosion-proof performance of the explosion-proof crane wheel track friction can be conducted. The testing apparatus can be used in the field of explosion-proof experimental apparatuses.
Description
Technical field
The utility model relates to a kind of explosion-proof test device, particularly relates to a kind of wheel-rail friction explosion-proof performance test unit.
Background technology
Explosion-proof crane all has series of products from little tonnage to large-tonnage, consider that for anti-explosion safety there is reciprocal operating condition in the slower explosion-proof crane of travelling speed for common crane.Explosion-proof crane wheel-rail friction Study on Problems relates to associated materials, concrete operating condition, actual motion environment, thermodynamic problems, the theory of blast aspect etc.
Explosion-proof crane wheel-rail friction thermal source can not be ignored, frictional heat source is excessive may to cause combustible gas explosion, domestic considerably less to the explosion-proof Study on Problems of explosion-proof crane wheel-rail friction, the explosion-proof performance rig for testing at explosion-proof crane wheel-rail friction aspect does not simultaneously almost have.
The utility model content
For addressing the above problem, the utility model provides a kind of explosion-proof performance test unit that can effectively simulate explosion-proof crane wheel-rail friction operating mode.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, comprise the casing of sealing and be installed on the interior wheel track main part of casing, be provided with running part in the casing, casing is provided with brake portion outward, the wheel track main part comprises centre wheel and is installed on the annular wheel track of centre wheel periphery that casing also is provided with the driving loading section that links to each other with the wheel track main part outward.
Be further used as the improvement of technical solutions of the utility model, annular wheel track comprises that capable assembling is three sections arc tracks of ring-type, and the side to the center of circle on each arc track is provided with rail groove, and the periphery of centre wheel is provided with the boss wheel limit that can embed rail groove.
Be further used as the improvement of technical solutions of the utility model, pad is provided with some adjustment copper sheets between the intrados side of centre wheel and each arc track.
Be further used as the improvement of technical solutions of the utility model, centre wheel is installed on the central shaft, is arranged with bearing seat between centre wheel and central shaft, and temperature sensor is installed in the bearing seat.
Be further used as the improvement of technical solutions of the utility model, driving loading section is to be installed in the outer some hydraulic loaded cylinders of casing, the other oil motor that also is provided with of hydraulic loaded cylinder.
Be further used as the improvement of technical solutions of the utility model, running part comprises some conical gear that are engaged with each other.
Be further used as the improvement of technical solutions of the utility model, casing comprises the casing body of sealing and is positioned at the gland bonnet of casing body top, is provided with the hydraulically extensible bar between casing body and gland bonnet, also is provided with the case lid securing member between casing body and gland bonnet.
Be further used as the improvement of technical solutions of the utility model, casing is provided with observation window.
Be further used as the improvement of technical solutions of the utility model, be provided with fan in the casing.
The beneficial effects of the utility model: this test unit that is used for evaluation explosion-proof crane wheel-rail friction explosion-proof performance can drive loading to the wheel track main part in the casing of sealing by driving loading section, can control centre wheel and the interaction of annular wheel track in operational process by changing heap(ed) capacity, with the various operating modes of simulation explosion-proof crane wheel-rail friction process, thereby carry out the test of explosion-proof crane wheel-rail friction explosion-proof performance.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the utility model embodiment inner structure side schematic view;
Fig. 2 is the utility model embodiment inner structure vertical view;
Fig. 3 is the utility model embodiment external structure schematic perspective view;
Fig. 4 is the utility model embodiment wheel track main part structural representation;
Fig. 5 is the utility model embodiment arc track structural representation;
Fig. 6 is the utility model embodiment centre wheel structural representation.
Embodiment
With reference to Fig. 1～Fig. 6, the utility model is a kind of for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, comprise the casing 1 of sealing and be installed on wheel track main part 2 in the casing 1, be provided with running part 4 in the casing 1, the casing 1 outer brake portion 5 that is provided with, wheel track main part 2 comprises centre wheel 21 and is installed on the annular wheel track 22 of centre wheel 21 peripheries, the casing 1 outer driving loading section 3 that links to each other with wheel track main part 2 that also is provided with.
This test unit that is used for evaluation explosion-proof crane wheel-rail friction explosion-proof performance can drive loading to the wheel track main part 2 in the casing 1 of sealing by driving loading section 3, can control centre wheel 21 and the interaction of annular wheel track 22 in operational process by changing heap(ed) capacity, various operating modes with simulation explosion-proof crane wheel-rail friction process, as normal rolling, gnaw that rail, original place skid, locking is slided and moved ahead, cross track seam crossing end face impacts, thereby carry out the test of explosion-proof crane wheel-rail friction explosion-proof performance.
As the utility model preferred embodiment, annular wheel track 22 comprises that capable assembling is three sections arc tracks 23 of ring-type, side to the center of circle on each arc track 23 is provided with rail groove 231, and the periphery of centre wheel 21 is provided with the boss wheel limit 211 that can embed rail groove 231.
As the utility model preferred embodiment, pad is provided with some adjustment copper sheets 24 between the intrados side of centre wheel 21 and each arc track 23.
In this explosion-proof performance test unit, the structure of wheel track main part 2 adopts the structure setting of circular orbit for making annular wheel track 22 circular-arc and being fixed on the centre wheel 21, when having satisfied testing requirements, has saved test space.In addition, by changing 22 thickness of adjusting copper sheet 24 of centre wheel 21 and annular wheel track, make 23 of each section arc tracks produce difference in height, and then realize that this method is easy to operate, and is simply ingenious to the test simulation of the seam crossing of annular wheel track 22.
When adjusting 23 thickness of adjusting copper sheet 24 of centre wheel 21 and arc track, and then when changing the difference in height of 23 of each section arc tracks, arc track 23 can radially slide with respect to centre wheel 21, be provided with some oval-shaped bolts hole on the centre wheel 21, make that bolt can be mobile in bolt hole with arc track 23, realize bolt when adjusting copper sheet 24 and be different-thickness to arc track 23 fixing at centre wheel 21.
When doing experiment, this wheeled track structure can well replace the effect of on-the-spot track, simultaneously, at explosion-proof crane, the various operating modes that material property, requirement of explosion proof and the explosion-proof crane of the real reaction rail of this wheeled track structure energy runs into.On project organization, there are rail groove 231 and boss wheel limit 211, bolted fixing, and radially reinforcing by register pin, therefore this track structure is when simulation explosion-proof crane wheel gnawing rail, have very high strength and stiffness, simultaneously because there is difference of height in the track seam crossing, here the method that adopted pad to adjust copper sheet 24 is simulated, select the adjustment copper sheet 24 of different-thickness, different differences in height can be set, this method is easy to operate, and is simply ingenious, and meets the requirement of explosion-proof occasion.
As the utility model preferred embodiment, centre wheel 21 is installed on the central shaft, is arranged with bearing seat between centre wheel 21 and central shaft, and temperature sensor is installed in the bearing seat.Can accurately measure the temperature between the explosion-proof crane wheel track contact tread.
As the utility model preferred embodiment, drive loading section 3 for being installed in the some hydraulic loaded cylinders 31 outside the casing 1, the hydraulic loaded cylinder 31 other oil motors 32 that also are provided with.
As the utility model preferred embodiment, running part 4 comprises some conical gear that are engaged with each other.
As the utility model preferred embodiment, casing 1 comprises the casing body 11 of sealing and is positioned at the gland bonnet 12 of casing body 11 tops, 12 of casing body 11 and gland bonnets are provided with hydraulically extensible bar 13, and 12 of casing body 11 and gland bonnets also are provided with case lid securing member 14.
In this casing 1 and on the outer wall of casing 1 some structural members have been installed, and some structural members that passes casing 1 outer wall, have been passed between the structure of casing 1 outer wall in the installation process at these, the O-ring seal that can ensure casing 1 sealing property all has been installed simultaneously.
Casing securing member 14 can ensure the sealing property of 12 of the casing body 11 of forming casing 1 and gland bonnets, can be used for opening or closing gland bonnet 12 by control hydraulically extensible bar 13, also can make the gland bonnet 12 on the casing 1 stay open state simultaneously.
As the utility model preferred embodiment, casing 1 is provided with observation window 6, can observe the situation of casing 1 interior spark in the operational process.
As the utility model preferred embodiment, be provided with fan 7 in the casing 1, can guarantee that gas can evenly distribute in the process of inflating in casing.
Four kinds of main hazard operating modes in this rig for testing energy real simulated explosion-proof crane wheel track operational process belong to research and development first at home.The utility model adopts the wheel track main part 2 of fluid motor-driven explosion-proof crane, and the speed range of adjustment is big, can reach 0～200m/min, adopts hydraulic cylinder to load, and imposed load can reach 18t, also satisfies the request for utilization under the explosion-proof environment simultaneously.The utility model adopts the form of rail wheel to replace straight track, can dwindle the space when truly reflecting operating mode, and is easily manufactured, and it is simple in structure, technological requirement meets requirement of explosion proof, simple to operate.
This rig for testing is used for estimating explosion-proof crane wheel-rail friction explosion-proof performance, by the motion conditions under four kinds of operating modes of accurate simulation explosion-proof crane wheel track, be respectively gnaw rail, cross the track seam crossing, skid in the original place, locking is slided, can accurately measure the temperature of tread, in order to assess the explosion-proof performance of its wheel-rail friction, this rig for testing can be full of damp, the simulation explosion-proof crane is worked in having the inflammable gas environment, simulate the situation of the various operating modes of explosion-proof crane then, whether produce blast after operation a period of time.
The concrete steps of four kinds of operating modes of simulation explosion-proof crane wheel track are as follows:
Cross track seam crossing operating mode: it is to make explosion-proof crane wheel and track seam crossing produce percussive action that simulation explosion-proof crane orbit gap impacts operating mode, difference in height between two tracks of track seam crossing can arrange within the specific limits flexibly, it is to realize by arc track 23 inside surfaces that the rail wheel outsourcing is set that the seam crossing difference in height is set, there is certain slit junction, the outside between arc track 23 inside surfaces and the centre wheel 21, the mode of adjusting copper sheet 24 by plug in this slit realizes interorbital difference in height, difference in height is more big, the speed of explosion-proof crane wheel is more fast, and the possibility that produces shock spark is more big.
It is as follows that this test unit is simulated this operating mode specific operation process, at first load wheel, make wheel near rail wheel, the size of loading force is wheel weight, fluid motor-driven rail wheel rotation then, at this moment, because the effect of friction force, centre wheel 21 and annular wheel track 22 move simultaneously, and wheel can be finished a gap impact at set intervals later on, impact number of times and can select according to the test needs.
Gnaw the rail operating mode: gnaw rail and refer to that the cylindrical of explosion-proof crane centre wheel 21 contacts with the side of annular wheel track 22, relative motion produces friction situation.Friction can produce high temperature under this operating mode, even may produce friction spark.Simulate this operating mode, the explosion-proof crane wheel position is constant, the rail wheel move left and right produces displacement, in this process and the contact friction of crane wheel inner edge, wherein the rail wheel move left and right realizes by hydraulic cylinder, the transverse force that applies guarantees to gnaw the rail degree, gnaws the rail degree simultaneously and also measures by displacement, guarantees that displacement is no more than 10mm.
The original place operating mode of skidding: the unloading phase that this operating mode mainly occurring in explosion-proof crane, because the instantaneous wheel staring torque is very big, produced the operating mode of skidding, under the operating mode of skidding, raceway surface easily produces high temperature, when this test unit is simulated this operating mode, rail wheel and wheel rotate simultaneously, reach after certain speed, rail wheel is stopped operating, the wheel maintenance rotates, and this method need regulate the speed of wheel at once, the oil motor moment of selecting for use simultaneously is big, can be early, moment stops the motion of rail wheel.
Locking slip operating mode: the operating mode that locking is slided mainly appears at the explosion-proof crane brake stage, because brake torque is big or other reasons causes wheel stuck, the translation forward that wheel does not rotate, wheel and track produce hard friction, the simulation of this operating mode is to make the detent tight wheel of stopping, and does not allow its rotation, fluid motor-driven rail wheel motion then, adjustable track wheel velocity magnitude can be simulated the temperature of wheel track tread under the different travelling speed.
More than four kinds of operating modes can test containing under the environment of damp, need in the test unit main body, be full of inflammable gas, the composition of this gas first proportioning as required is good, earlier test unit is vacuumized, then by air intake opening in the casing, fill into test unit, fan is arranged on case lid, guarantee evenly to distribute at gas replenishment process gas.Device temperature in the process of simulated condition is too high or produce spark, all will light damp and produce blast.
The simulation of various operating modes, on explosion-proof crane wheel track tread, all will produce the temperature field, the utility model is first-class by temperature sensor, infrared photography, the temperature field that can measure between the explosion-proof crane wheel track tread distributes, according to distribution and the maximum temperaturerise situation in temperature field, we can estimate explosion-proof crane wheel-rail friction explosion-proof performance etc.
Certainly, the utility model is created and is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of the utility model spirit, the modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (9)
1. test unit of be used for estimating explosion-proof crane wheel-rail friction explosion-proof performance, it is characterized in that: comprise the casing (1) of sealing and be installed on the interior wheel track main part (2) of described casing (1), be provided with running part (4) in the described casing (1), the outer brake portion (5) that is provided with of described casing (1), described wheel track main part (2) comprises centre wheel (21) and is installed on the peripheral annular wheel track (22) of centre wheel (21), the outer driving loading section (3) that links to each other with wheel track main part (2) that also is provided with of described casing (1).
2. according to claim 1 for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, it is characterized in that: described annular wheel track (22) comprises that capable assembling is three sections arc tracks (23) of ring-type, each described arc track (23) is gone up to a side in the center of circle and is provided with rail groove (231), and the periphery of described centre wheel (21) is provided with the boss wheel limit (211) that can embed rail groove (231).
3. according to claim 2 for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, it is characterized in that: pad is provided with some adjustment copper sheets (24) between the intrados side of described centre wheel (21) and each arc track (23).
4. according to claim 1 and 2 for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, it is characterized in that: described centre wheel (21) is installed on the central shaft, be arranged with bearing seat between described centre wheel (21) and central shaft, in the described bearing seat temperature sensor be installed.
5. according to claim 1 for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, it is characterized in that: described driving loading section (3) is for being installed in the some hydraulic loaded cylinders (31) outside the casing (1), the other oil motor (32) that also is provided with of described hydraulic loaded cylinder (31).
6. according to claim 1 and 2 for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, it is characterized in that: described running part (4) comprises some conical gear that are engaged with each other.
7. according to claim 1 and 2 for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, it is characterized in that: described casing (1) comprises the casing body (11) of sealing and is positioned at the gland bonnet (12) of casing body (11) top, be provided with hydraulically extensible bar (13) between described casing body (11) and gland bonnet (12), also be provided with case lid securing member (14) between described casing body (11) and gland bonnet (12).
8. according to claim 1 and 2 for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, it is characterized in that: described casing (1) is provided with observation window (6).
9. according to claim 1 and 2 for the test unit of estimating explosion-proof crane wheel-rail friction explosion-proof performance, it is characterized in that: be provided with fan (7) in the described casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201022992U CN203148661U (en) | 2013-03-06 | 2013-03-06 | Testing apparatus used for evaluating explosion-proof performance of explosion-proof crane wheel track friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201022992U CN203148661U (en) | 2013-03-06 | 2013-03-06 | Testing apparatus used for evaluating explosion-proof performance of explosion-proof crane wheel track friction |
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| Publication Number | Publication Date |
|---|---|
| CN203148661U true CN203148661U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201022992U Withdrawn - After Issue CN203148661U (en) | 2013-03-06 | 2013-03-06 | Testing apparatus used for evaluating explosion-proof performance of explosion-proof crane wheel track friction |
Country Status (1)
| Country | Link |
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| CN (1) | CN203148661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175681A (en) * | 2013-03-06 | 2013-06-26 | 广州市特种机电设备检测研究院 | Testing apparatus for evaluating friction and anti-explosion properties of wheel rails of anti-explosion cranes |
-
2013
- 2013-03-06 CN CN2013201022992U patent/CN203148661U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175681A (en) * | 2013-03-06 | 2013-06-26 | 广州市特种机电设备检测研究院 | Testing apparatus for evaluating friction and anti-explosion properties of wheel rails of anti-explosion cranes |
| CN103175681B (en) * | 2013-03-06 | 2015-12-02 | 广州特种机电设备检测研究院 | A kind of test unit for evaluating explosion-proof crane wheel-rail friction explosion-proof performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The Yuexiu District road Guangzhou city Guangdong province 510180 No. 65 building 702 Lurong Patentee after: GUANGZHOU ACADEMY OF SPECIAL EQUIPMENT INSPECTION & TESTING Address before: The Yuexiu District road Guangzhou city Guangdong province 510180 No. 65 building 702 Lurong Patentee before: Guangzhou Academy of Special Equipment Inspection & Testing |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |