CN114018805A - Land wheel and guide rail contact friction testing device - Google Patents
Land wheel and guide rail contact friction testing device Download PDFInfo
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- CN114018805A CN114018805A CN202111341409.6A CN202111341409A CN114018805A CN 114018805 A CN114018805 A CN 114018805A CN 202111341409 A CN202111341409 A CN 202111341409A CN 114018805 A CN114018805 A CN 114018805A
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- guide rail
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention relates to a testing device, in particular to a testing device for testing the contact friction between a land wheel and a guide rail. The utility model provides a land wheel and guide rail contact nature friction test device convenient to change and dismantle the land wheel and the guide rail of different models, and the result of test is accurate relatively. The utility model provides a land wheel and guide rail contact nature friction test device, is equipped with two guide rails including mounting panel, guide rail, slide rail etc. in the left and right sides symmetry at mounting panel top, and two guide rail's the equal slidingtype slide rail that is used for the direction that is connected with in front side. The working personnel can carry out simulated load test on the ground wheels and the guide rails by adding the number of the weights according to specific conditions; the placing groove can be conveniently ejected out of the guide rail through the matching action of the swinging assembly and the sliding assembly, so that the guide rails of different types can be conveniently replaced; through the control rodless cylinder removal, can carry out more convenient contact friction test to land wheel and guide rail to staff's efficiency of software testing can be improved.
Description
Technical Field
The invention relates to a testing device, in particular to a testing device for testing the contact friction between a land wheel and a guide rail.
Background
At present, the land wheel and the guide rail are widely applied, and in the use process of the land wheel and the guide rail, the land wheel needs to bear certain weight, so that the wear rate of the land wheel is higher than that of the guide rail, if the land wheel is blocked in the operation process, the wear of the land wheel is easy to accelerate, and safety accidents can be caused in serious cases.
In order to improve the life of land wheel, the cost is saved, need the staff to carry out the contact friction test to land wheel and guide rail repeatedly, thereby carry out analysis and demonstration to the result of test, and in to land wheel and guide rail test process, generally need carry out the change test of turn through artifical manual land wheel and the guide rail of different models, then observe test process through the naked eye, rely on empirical analysis to obtain the result of test, so operation, it is comparatively hard, result inaccurate easily that leads to the test.
Therefore, it is necessary to design and develop a friction testing device for testing the contact between the ground wheel and the guide rail, which is convenient for replacing and disassembling the ground wheel and the guide rail of different models and has relatively accurate testing result.
Disclosure of Invention
(1) Technical problem to be solved
The invention aims to overcome the defect that workers need to frequently disassemble and replace land wheels and guide rails of different types for contact friction test, and the test result is obtained by experience of individuals, so that misjudgment on the test result is easily caused.
(2) Technical scheme
In order to solve the technical problems, the invention provides a device for testing the contact friction between a ground wheel and a guide rail, which comprises a mounting plate, two guide rails, slide rails, a lifting frame, connecting rods, weights, a placing table, a swinging assembly, a sliding assembly and a moving assembly, wherein the two guide rails are symmetrically arranged on the left side and the right side of the top of the mounting plate, the slide rails for guiding are connected on the front sides of the two guide rails in a sliding manner, the lifting frame for adjusting the height is connected between the upper parts of the two slide rails in a sliding manner, the two connecting rods are symmetrically arranged on the left side and the right side of the top of the lifting frame, the weights with different models are sleeved on the lower parts of the two connecting rods, the placing table is arranged in the middle of the top of the mounting plate, a plurality of placing grooves are formed in the top of the placing table, the guide rail for testing is placed in the placing grooves on the left side and the swinging assembly is arranged on the left side of the bottom of the placing table, a moving component used for sliding is connected between the mounting plate and the lifting frame.
Further, the slip subassembly is connected with first connecting plate through four elastic components that are used for reseing including slider, first connecting plate and elastic component, places the front side of platform bottom, and the bilateral symmetry at first connecting plate top is equipped with two sliders that are used for promoting the guide rail, and two sliders all with place a sliding fit.
Further, the swing subassembly is equipped with the axostylus axostyle through the axle sleeve rotary type including axle sleeve, axostylus axostyle, first swing span and second swing span, the front side at mounting panel top, but is equipped with the first swing span of luffing motion about the axostylus axostyle between the both ends, is connected with the second swing span about the rear side of first swing span between the both ends, and the second swing span and the cooperation of first connecting plate contact.
Further, the removal subassembly is including the mount pad, no pole cylinder, the wedge, first fixed plate, second fixed plate and contact arm, and the right side at mounting panel top is equipped with the mount pad, and the top of mount pad is equipped with the no pole cylinder that is used for providing power, is equipped with the wedge on the piston of no pole cylinder, and the front side of wedge lower part is equipped with first fixed plate, and the top of wedge is equipped with the second fixed plate, and the crane bottom is equipped with the contact arm, and the contact arm contacts the cooperation with first fixed plate and second fixed plate respectively.
Further, including observing the subassembly, observe the subassembly including first pivot, rubber wheel, guide block, sliding frame and rubber strip, the right side of shaft coupling is connected with first pivot, and the right side of first pivot is connected with the rubber wheel, and the right rear side of crane bottom is equipped with the guide block that is used for the guide, and sliding connection has the sliding frame in the guide block, and the bottom of sliding frame is equipped with the rubber strip, and rubber strip and rubber wheel contact cooperation.
Further, still including the record subassembly, the record subassembly is including the guide arm, the second connecting plate, the screw rod, the internal thread sleeve pipe, record board and recording pen, the right front side on crane upper portion is connected with the guide arm, the right rear side on crane upper portion is connected with the second connecting plate, the rear side rotation formula of second connecting plate is connected with the screw rod, the lower part threaded connection's of screw rod mode is connected with the internal thread sleeve pipe, the internal thread sheathed tube left side is connected with the record board that is used for the record data, and record board and guide arm sliding fit, the right rear side joint of sliding frame is connected with the recording pen, and recording pen and record board contact cooperation.
Further, still including rotating assembly, rotating assembly is including second pivot, one way clutch, connection roller and dead lever, and the bottom of screw rod is equipped with the second pivot, and the bottom of second pivot is equipped with one way clutch, and one way clutch's the outside is equipped with the connection roller, and open in the outside of connection roller has the helicla flute, and the intermediate position at right side slide rail rear portion is connected with the dead lever, and dead lever and helicla flute sliding fit.
Furthermore, the bottom of the mounting plate is provided with an anti-skid rubber mat.
(3) Advantageous effects
Advantageous effects of the invention
1. The working personnel can carry out simulated load test on the ground wheels and the guide rails by adding the number of the weights according to specific conditions; the placing groove can be conveniently ejected out of the guide rail through the matching action of the swinging assembly and the sliding assembly, so that the guide rails of different types can be conveniently replaced; through the control rodless cylinder removal, can carry out more convenient contact friction test to land wheel and guide rail to staff's efficiency of software testing can be improved.
2. Through rubber wheel and rubber strip contact cooperation, can drive the recording pen and remove to corresponding mark can be drawn in the record board, staff's accessible is observed the mark line on the record board and is analyzed the result of test, improvement staff that can be further to the efficiency of software testing between wheel and the guide rail.
3. Under the mating reaction of helicla flute and dead lever, can realize carrying out automatic adjustment to the record board, need not to adjust through artifical manual to convenience has been provided for the staff.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial perspective view of the present invention.
Fig. 3 is a schematic perspective view of the swing assembly of the present invention.
Fig. 4 is a schematic perspective view of the sliding assembly of the present invention.
FIG. 5 is a diagram showing the connection between the slider and the placement table according to the present invention.
Fig. 6 is a schematic perspective view of the moving assembly of the present invention.
Fig. 7 is a partial perspective view of the moving assembly of the present invention.
Fig. 8 is a schematic perspective view of the observation assembly of the present invention.
Fig. 9 is a schematic perspective view of a part of the observation assembly of the present invention.
Fig. 10 is a schematic perspective view of a recording unit according to the present invention.
Fig. 11 is a perspective view of the rotating assembly of the present invention.
Fig. 12 is a partial perspective view of the rotating assembly of the present invention.
The labels in the figures are: 1-mounting plate, 2-guide rail, 3-slide rail, 4-lifting frame, 5-connecting rod, 6-weight, 7-placing table, 8-placing groove, 9-swinging component, 91-shaft sleeve, 92-shaft rod, 93-first swinging frame, 94-second swinging frame, 10-sliding component, 101-sliding block, 102-first connecting plate, 103-elastic component, 11-moving component, 111-mounting seat, 112-rodless cylinder, 113-wedge block, 114-first fixing plate, 115-second fixing plate, 116-contact rod, 12-observation component, 121-first rotating shaft, 122-rubber wheel, 123-guide block, 124-sliding frame, 125-rubber strip, 13-recording component, 131-guide rod, 132-second connecting plate, 133-screw rod, 134-internal thread sleeve, 135-recording plate, 136-recording pen, 14-rotating component, 141-second rotating shaft, 142-one-way clutch, 143-connecting roller, 144-spiral groove, 145-fixing rod, 200-land wheel and 201-guide rail.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example 1
A testing device for contact friction of a ground wheel and a guide rail is disclosed, as shown in figures 1-7, and comprises a mounting plate 1, guide rails 2, slide rails 3, a lifting frame 4, connecting rods 5, weights 6, a placing platform 7, a swinging assembly 9, a sliding assembly 10 and a moving assembly 11, wherein the bottom of the mounting plate 1 is provided with an anti-slip rubber mat which can prevent the device from sliding in the using process, the left side and the right side of the top of the mounting plate 1 are symmetrically welded with the two guide rails 2, the front sides of the two guide rails 2 are both connected with the slide rails 3 in a sliding manner, the upper parts of the two slide rails 3 are connected with the lifting frame 4 in a sliding manner, the bottom of the lifting frame 4 is provided with a rotary coupler, the left side and the right side of the coupler can be provided with the ground wheel 200 for testing, the top of the lifting frame 4 is bilaterally welded with the two connecting rods 5, the lower parts of the two connecting rods 5 are all sleeved with the weights 6, the middle part of the top of the mounting plate 1 is provided with the placing platform 7 in a bolt connection manner, the top of placing the platform 7 is opened has a plurality of standing grooves 8, is used for placing the guide rail 201 that is used for the test in the standing groove 8 of the left and right sides, and the left side at the middle part of mounting panel 1 is equipped with swing subassembly 9, and the left side of placing the platform 7 bottom is installed and is slided the subassembly 10, is connected with removal subassembly 11 between mounting panel 1 and the crane 4.
The sliding assembly 10 comprises a sliding block 101, a first connecting plate 102 and elastic pieces 103, the front side of the bottom of the placing table 7 is connected with the first connecting plate 102 through the four elastic pieces 103, the two sliding blocks 101 are welded on the left and right sides of the top of the first connecting plate 102 symmetrically, and the two sliding blocks 101 are in sliding fit with the placing table 7.
The swing assembly 9 comprises a shaft sleeve 91, a shaft rod 92, a first swing frame 93 and a second swing frame 94, the shaft rod 92 is rotatably arranged on the front side of the top of the mounting plate 1 through the shaft sleeve 91, the first swing frame 93 is welded between the left end and the right end of the shaft rod 92, the second swing frame 94 is connected between the left end and the right end of the rear side of the first swing frame 93, and the second swing frame 94 is in contact fit with the first connecting plate 102.
The movable assembly 11 comprises a mounting seat 111, a rodless cylinder 112, a wedge-shaped block 113, a first fixing plate 114, a second fixing plate 115 and a contact rod 116, the mounting seat 111 is riveted on the right side of the top of the mounting plate 1, the rodless cylinder 112 is mounted on the top of the mounting seat 111 in a bolt connection mode, the wedge-shaped block 113 is detachably arranged on a piston of the rodless cylinder 112, the first fixing plate 114 is arranged on the front side of the lower portion of the wedge-shaped block 113, the second fixing plate 115 is welded on the top of the wedge-shaped block 113, the contact rod 116 is arranged at the bottom of the lifting frame 4, and the contact rod 116 is in contact fit with the first fixing plate 114 and the second fixing plate 115 respectively.
When a worker needs to perform a contact friction test on the land wheel 200 and the guide rail 201, the device can be used, the land wheel 200 to be tested can be installed at the bottom of the lifting frame 4 in a bolt fixing mode, then the guide rail 201 to be tested is placed in the placing groove 8, a proper amount of weights 6 can be placed on the connecting rod 5, a load is simulated for testing, the worker can start the rodless cylinder 112, the piston of the rodless cylinder 112 is controlled to drive the wedge block 113 to slide towards the rear side through magnetic force, when the wedge block 113 gradually slides towards the rear side, the contact rod 116 slowly slides downwards along the inclined surface of the wedge block 113, the lifting frame 4 drives the land wheel 200 and the weights 6 to slide downwards, when the contact rod 116 is matched with the first fixing plate 114, the land wheel 200 is in contact matching with the guide rail 201, the contact rod 116 is driven to move towards the rear side under the limiting action of the first fixing plate 114, at this time, the slide rail 3 drives the lifting frame 4 and the land wheel 200 to slide to the rear side, the land wheel 200 rolls to the rear side along the guide rail 201, at this time, the worker can analyze by observing the contact degree between the land wheel 200 and the guide rail 201, so as to obtain the test result, if the land wheel 200 and the guide rail 201 are easy to slip, it is said that if the land wheel 200 and the guide rail 201 are poor in contact, otherwise, it is said that the land wheel 200 and the guide rail 201 are good in contact, after the test is completed, the worker can step the first swing frame 93 to swing downwards by feet, so that the second swing frame 94 swings upwards to be matched with the first connecting plate 102, the slide block 101 is lifted upwards, the elastic piece 103 is contracted, so that the guide rail 201 in the placing groove 8 is pushed out, the worker can replace the guide rail 201 conveniently, the test can be conveniently performed on the guide rails 201 of different types, and after the worker takes out the guide rail 201, can loosen first swing span 93, drive first connecting plate 102 and slider 101 lapse along with it and reset under the effect of elastic component 103 elasticity, second swing span 94 resets thereupon, the staff can close rodless cylinder 112 and make the reverse slip of wedge 113 reset, contact lever 116 drives crane 4 lapse thereupon and resets, land wheel 200 breaks away from with guide rail 201 along with it, then can dismantle the land wheel 200 that the test finishes, the land wheel 200 of changing other models tests, so, the staff can be comparatively convenient change the land wheel 200 and the guide rail 201 of different models test, thereby can improve staff's efficiency of software testing.
Example 2
On the basis of embodiment 1, as shown in fig. 1, fig. 8, fig. 9 and fig. 10, the device further includes an observation assembly 12, the observation assembly 12 includes a first rotating shaft 121, a rubber wheel 122, a guide block 123, a sliding frame 124 and a rubber strip 125, the right side of the coupler is connected with the first rotating shaft 121 in a bolt connection manner, the right side of the first rotating shaft 121 is in interference connection with the rubber wheel 122, the guide block 123 is arranged on the right rear side of the bottom of the lifting frame 4 in a bolt connection manner, the sliding frame 124 is connected in the guide block 123 in a sliding manner, the rubber strip 125 is detachably clamped at the bottom of the sliding frame 124, and the rubber strip 125 is in contact fit with the rubber wheel 122.
Still including record subassembly 13, record subassembly 13 is including guide arm 131, second connecting plate 132, screw 133, female thread sleeve pipe 134, record board 135 and recording pen 136, the right front side on crane 4 upper portion is connected with guide arm 131 through bolted connection's mode, the right rear side on crane 4 upper portion is connected with second connecting plate 132, the rear side rotation type of second connecting plate 132 is connected with screw 133, the lower part threaded connection's of screw 133 mode is connected with female thread sleeve pipe 134, detachable being connected with record board 135 on female thread sleeve pipe 134, and record board 135 and guide arm 131 sliding fit, the right rear side of sliding frame 124 is connected with recording pen 136 through bolted connection's mode joint, and recording pen 136 and recording board 135 contact fit.
In order to facilitate better analysis of test data and improve accuracy of a test result, when the land wheel 200 is in contact fit with the guide rail 201, the first rotating shaft 121 drives the rubber wheel 122 to rotate along with the first rotating shaft through transmission of the coupler, the rubber wheel 122 is in contact fit with the rubber strip 125 along with the first rotating shaft, the rubber strip 125 drives the sliding frame 124 and the recording pen 136 to slide along with the rubber strip, the recording pen 136 draws a corresponding marking line in the recording board 135 along with the marking line, after the test is finished, a worker can analyze the test result by observing the marking line on the recording board 135, if the track of the marking line is clearer, the contact between the land wheel 200 and the guide rail 201 is better, otherwise, the contact between the land wheel 200 and the guide rail 201 is poorer, and thus, the efficiency of the worker in contact test on the land wheel 200 and the guide rail 201 can be further improved.
Example 3
On the basis of embodiment 2, as shown in fig. 1, 11 and 12, the sliding rail further includes a rotating assembly 14, the rotating assembly 14 includes a second rotating shaft 141, a one-way clutch 142, a connecting roller 143 and a fixing rod 145, the second rotating shaft 141 is disposed at the bottom of the screw 133 in a bolt connection manner, the one-way clutch 142 is disposed at the bottom of the second rotating shaft 141, the connecting roller 143 is disposed at the outer side of the one-way clutch 142, a spiral groove 144 is formed at the outer side of the connecting roller 143, the fixing rod 145 is welded at the middle position of the rear portion of the right side sliding rail 3, and the fixing rod 145 is in sliding fit with the spiral groove 144.
When the staff need test once more, at the in-process that crane 4 slided upwards and resets, second pivot 141 drives connection roller 143 and upwards slides thereupon, can drive second pivot 141 and screw rod 133 under the mating reaction of dead lever 145 and helicla flute 144 and rotate, record board 135 certain degree of upwards sliding thereupon, be convenient for record the data of retesting once more, under one way clutch 142's effect, when crane 4 slides downwards, connection roller 143 will not rotate, therefore, can realize carrying out automatic adjustment to record board 135, need not to adjust through artifical manual, but the staff provides the convenience.
The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A testing device for contact friction of a land wheel and a guide rail is characterized by comprising a mounting plate (1), guide rails (2), slide rails (3), a lifting frame (4), connecting rods (5), weights (6), a placing table (7), a swinging assembly (9), a sliding assembly (10) and a moving assembly (11), wherein the left side and the right side of the top of the mounting plate (1) are symmetrically provided with the two guide rails (2), the front sides of the two guide rails (2) are both connected with the slide rails (3) for guiding in a sliding manner, the lifting frame (4) for adjusting the height is connected between the upper parts of the two slide rails (3) in a sliding manner, the top of the lifting frame (4) is symmetrically provided with the two connecting rods (5) in the left and right direction, the lower parts of the two connecting rods (5) are both sleeved with the weights (6) with different models, the placing table (7) is arranged in the middle of the top of the mounting plate (1), the top of placing platform (7) is opened has a plurality of standing grooves (8), is used for placing guide rail (201) that are used for the test in standing groove (8) of the left and right sides, and the left side at mounting panel (1) middle part is equipped with swing subassembly (9), places the left side of platform (7) bottom and installs slip subassembly (10), is connected with between mounting panel (1) and crane (4) and is used for gliding removal subassembly (11).
2. The device for testing the contact friction between the ground wheel and the guide rail as claimed in claim 1, wherein the sliding assembly (10) comprises a sliding block (101), a first connecting plate (102) and elastic pieces (103), the front side of the bottom of the placing table (7) is connected with the first connecting plate (102) through four elastic pieces (103) for resetting, the left and right of the top of the first connecting plate (102) are symmetrically provided with two sliding blocks (101) for pushing the guide rail (201), and the two sliding blocks (101) are in sliding fit with the placing table (7).
3. The device for testing the contact friction between the ground wheel and the guide rail as claimed in claim 2, wherein the swing assembly (9) comprises a shaft sleeve (91), a shaft rod (92), a first swing frame (93) and a second swing frame (94), the shaft rod (92) is rotatably arranged on the front side of the top of the mounting plate (1) through the shaft sleeve (91), the first swing frame (93) capable of swinging up and down is arranged between the left end and the right end of the shaft rod (92), the second swing frame (94) is connected between the left end and the right end of the rear side of the first swing frame (93), and the second swing frame (94) is in contact fit with the first connecting plate (102).
4. The device for testing the contact friction of the land wheel and the guide rail as claimed in claim 3, wherein the moving assembly (11) comprises a mounting seat (111), a rodless cylinder (112), a wedge block (113), a first fixing plate (114), a second fixing plate (115) and a contact rod (116), the mounting seat (111) is arranged on the right side of the top of the mounting plate (1), the rodless cylinder (112) used for providing power is arranged on the top of the mounting seat (111), the wedge block (113) is arranged on a piston of the rodless cylinder (112), the first fixing plate (114) is arranged on the front side of the lower portion of the wedge block (113), the second fixing plate (115) is arranged on the top of the wedge block (113), the contact rod (116) is arranged at the bottom of the lifting frame (4), and the contact rod (116) is respectively in contact fit with the first fixing plate (114) and the second fixing plate (115).
5. The device for testing the contact friction between the land wheel and the guide rail as claimed in claim 4, further comprising an observation assembly (12), wherein the observation assembly (12) comprises a first rotating shaft (121), a rubber wheel (122), a guide block (123), a sliding frame (124) and a rubber strip (125), the right side of the coupler is connected with the first rotating shaft (121), the right side of the first rotating shaft (121) is connected with the rubber wheel (122), the right rear side of the bottom of the lifting frame (4) is provided with the guide block (123) for guiding, the sliding frame (124) is connected in the guide block (123) in a sliding manner, the rubber strip (125) is arranged at the bottom of the sliding frame (124), and the rubber strip (125) is in contact fit with the rubber wheel (122).
6. The device for testing the contact friction between the land wheel and the guide rail according to claim 5, further comprising a recording assembly (13), wherein the recording assembly (13) comprises a guide rod (131), a second connecting plate (132), a screw rod (133), an internally threaded sleeve (134), a recording plate (135) and a recording pen (136), the guide rod (131) is connected to the front right side of the upper part of the lifting frame (4), the second connecting plate (132) is connected to the rear right side of the upper part of the lifting frame (4), the screw rod (133) is rotatably connected to the rear side of the second connecting plate (132), the internally threaded sleeve (134) is connected to the lower part of the screw rod (133) in a threaded connection manner, the recording plate (135) for recording data is connected to the left side of the internally threaded sleeve (134), the recording plate (135) is in sliding fit with the guide rod (131), the recording pen (136) is connected to the rear right side of the sliding frame (124) in a clamping manner, and the recording pen (136) is in contact fit with the recording plate (135).
7. The device for testing the contact friction between the land wheel and the guide rail as claimed in claim 6, further comprising a rotating assembly (14), wherein the rotating assembly (14) comprises a second rotating shaft (141), a one-way clutch (142), a connecting roller (143) and a fixing rod (145), the second rotating shaft (141) is arranged at the bottom of the screw rod (133), the one-way clutch (142) is arranged at the bottom of the second rotating shaft (141), the connecting roller (143) is arranged on the outer side of the one-way clutch (142), a spiral groove (144) is formed in the outer side of the connecting roller (143), the fixing rod (145) is connected to the middle position of the rear portion of the right side sliding rail (3), and the fixing rod (145) is in sliding fit with the spiral groove (144).
8. A test device for testing the contact friction between a ground wheel and a guide rail as claimed in claim 7, wherein the bottom of the mounting plate (1) is provided with an anti-skid rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111341409.6A CN114018805B (en) | 2021-11-12 | 2021-11-12 | Friction testing device for contact property of land wheel and guide rail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111341409.6A CN114018805B (en) | 2021-11-12 | 2021-11-12 | Friction testing device for contact property of land wheel and guide rail |
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| CN114018805A true CN114018805A (en) | 2022-02-08 |
| CN114018805B CN114018805B (en) | 2023-08-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115855707A (en) * | 2023-03-03 | 2023-03-28 | 杭州电子科技大学 | Steel rail wheel-rail contact fatigue damage simulation test device and method under static and dynamic loads |
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