Traction device for automobile collision experiment

Abstract

The utility model discloses a traction device for an automobile collision experiment, which belongs to the field of automobile collision experiments, and comprises a traction trolley and two rows of embedded plates embedded in a cement floor mounting groove, an upper plate is fixed at the top of the traction trolley, a lower plate is fixed at the bottom of the traction trolley, and the traction trolley is fixed on the lower plate. Through the arrangement of the guide assembly, bolts for fixing the long strip plate are detached during replacement, then the guide rails are rotated upwards, the guide rails are made to rotate to the position above the cement floor, the operation space for detaching the connecting plate is increased, then bolts for fixing the connecting plate are detached, and the connecting plate can be replaced conveniently. During use, the guide rail can be detached, then the connecting plate is fixed to the square plate, the guide rail is rotated into the mounting groove of the cement floor, and then the long strip plate is fixed, so that operation is simple, and the guide rail is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the field of automobile collision experiments, and more particularly to a traction device for automobile collision experiments. Background Art

[0002] When using a heavy hammer towed test vehicle acceleration system to conduct a collision test on a car, the test vehicle is moved onto a runway with a preset track, and then the traction wire rope is connected to the chassis of the test vehicle. The heavy hammer falls and drives the traction trolley along the guide rail through the wire rope. The traction trolley tows the test vehicle through the wire rope. After the test vehicle is towed to a position close to the collision position, the wire rope is separated from the test vehicle, and the test vehicle continues to move under the action of inertia to cause a collision. The traction trolley, guide rail and wire rope constitute a traction device for car collision tests.

[0003] When a common traction device for automobile collision experiments is used, the wire rope on the traction trolley is connected to the test vehicle. The weight drops and drives the traction trolley to slide on the guide rail through the wire rope to achieve traction of the test vehicle. The traction trolley drives the guide wheel to roll along the guide rail. The cooperation between the guide wheel and the guide rail is used to guide the traction trolley during movement. However, as the use time increases, the contact position between the guide rail and the guide wheel wears more. When the guide rail needs to be replaced, the guide rail is fixed to the embedded plate by welding, and the embedded plate is embedded in the groove opened on the cement runway. When replacing the guide rail, the connection position between the guide rail and the embedded plate needs to be cut off by a cutting machine before the guide rail can be removed. Subsequently, the new guide rail needs to be fixed to the embedded plate by welding. The operation is troublesome and the replacement of the guide rail is relatively cumbersome. Therefore, we propose a traction device for automobile collision experiments to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the utility model is to provide a traction device for automobile collision tests. It is provided with a guide assembly. When replacing, the bolts fixing the long strip are removed, and then the guide rail is rotated upward so that the guide rail is rotated above the cement floor, increasing the operating space for removing the connecting plate. Then, the bolts fixing the connecting plate are removed, and the guide rail can be removed. Then, the connecting plate is fixed on the square plate, and then the guide rail is rotated into the installation groove of the cement floor, and then the long strip is fixed. The operation is simple, thereby facilitating the replacement of the guide rail.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A traction device for automobile collision testing includes a traction trolley and two rows of embedded plates embedded in a mounting groove on a cement floor. An upper plate is fixed to the top of the traction trolley, and a lower plate is fixed to the bottom of the traction trolley. Wheel seats are fixed to the opposing surfaces of the upper and lower plates. A guide wheel is rotatably connected to the wheel seat. A protrusion is provided on the circumferential surface of the guide wheel, and the center of the protrusion is located on the central axis of the guide wheel.

[0009] The opposite surfaces of the two rows of embedded plates are fixed with connecting seats, and a guide assembly is provided on the side of the connecting seat. The guide assembly includes a rotating seat rotatably connected to the connecting seat, a long strip is fixed on the side of the rotating seat, a bottom support block is fixed in the connecting seat, a square plate is fixed on the side of the long strip, the square plate is detachably connected to the bottom support block by bolts, and the side of the square plate is detachably connected to the connecting plate by bolts. Guide rails are fixed on the top and bottom of the connecting plate, and the opposite surfaces of the two guide rails are respectively fitted with the top and bottom of the connecting plate. The guide wheel is movably connected to the side of the guide rail away from the connecting plate, and a guide groove is provided on the side of the guide rail away from the connecting plate, and the protrusion is movably connected to the inner wall of the guide groove.

[0010] Furthermore, a plurality of reinforcing ribs are fixed to the top and bottom of the long strip, and the reinforcing ribs are fixed to the side surfaces of the connecting plate.

[0011] Furthermore, a connecting bar is fixed to the side of the rotating seat, the end of the connecting bar is fixedly connected to the side of the square plate, and the side of the connecting bar close to the long plate is fixedly connected to the surface of the long plate.

[0012] Furthermore, inclined plane 1 is provided on both sides of the protrusion, and inclined plane 2 adapted to inclined plane 1 is provided on the side surface of the inner wall of the guide groove, and inclined plane 1 is rotatably connected to inclined plane 2.

[0013] Furthermore, a second curved surface is provided on the inner wall of the guide groove near the connecting plate, and a first curved surface matched with the second curved surface is provided on the raised portion, and the first curved surface is rotatably connected to the second curved surface.

[0014] Furthermore, a plurality of water-permeable holes are provided in the second curved surface above the connecting plate.

[0015] Furthermore, an oblique support plate is fixed in the connecting seat, the top of the oblique support plate is in contact with the bottom of the rotating seat, and the oblique support plate is fixed to a side of the bottom support block close to the embedded plate.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) This solution, through the setting of the guide assembly, removes the bolts fixing the long strip when replacing, and then rotates the guide rail upwards to make the guide rail rotate above the cement floor, increasing the operating space for removing the connecting plate, and then removes the bolts fixing the connecting plate, and then the guide rail can be removed, and then the connecting plate is fixed on the square plate, and then the guide rail is rotated to the installation groove of the cement floor, and then the long strip is fixed. The operation is simple, thus facilitating the replacement of the guide rail;

[0019] (2) This solution, through the arrangement of inclined surface 1 and curved surface 1, utilizes the coordination of inclined surface 1 on the guide wheel and inclined surface 2 in the guide groove, as well as the coordination of curved surface 1 on the guide wheel and curved surface 2 in the guide groove, to improve the guiding ability of the guide groove to the guide wheel, thereby improving the guiding ability of the traction trolley, ensuring that the traction trolley moves along the long direction of the guide rail, thereby improving the guiding ability of the traction trolley to the experimental vehicle, making the experimental vehicle move stably along the preset direction, and ensuring the accuracy of subsequent collision tests;

[0020] (2) In this scheme, through the setting of the water-permeable holes, when rainwater falls on the curved surface 2 located above the connecting plate, the rainwater can flow out from the curved surface 2 along the water-permeable holes, and the rainwater can be discharged from the curved surface 2 in time, thereby effectively preventing rust from occurring in the guide groove of the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a cross-sectional view of the guide wheel of the present utility model;

[0023] Figure 3 For the utility model Figure 2 A magnified view of the structure at center A;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the guide wheel of the present utility model;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the traction trolley of the present utility model.

[0026] Description of the numbers in the figure:

[0027] 1. Traction trolley; 2. Upper plate; 3. Lower plate; 4. Wheel seat; 5. Guide wheel; 51. Raised part; 52. Inclined surface 1; 53. Curved surface 1; 6. Embedded plate; 7. Connecting seat; 8. Guide assembly; 81. Long strip plate; 82. Square plate; 83. Connecting plate; 84. Guide rail; 85. Guide groove; 86. Inclined surface 2; 87. Curved surface 2; 88. Rotating seat; 89. Bottom support block; 9. Water-permeable hole; 10. Diagonal support plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 5 A traction device for automobile collision test includes a traction trolley 1 and two rows of embedded plates 6 embedded in a mounting groove on a cement floor. The number of embedded plates 6 in each row is multiple. One side of the traction trolley 1 is connected to the weight of the weight-traction test vehicle acceleration system through a steel wire rope, and the other side of the traction trolley 1 is connected to the chassis of the test vehicle through another steel wire rope. An upper plate 2 is fixed on the top of the traction trolley 1, and a lower plate 3 is fixed on the bottom of the traction trolley 1. Wheel seats 4 are fixed on the opposite surfaces of the upper plate 2 and the lower plate 3. A guide wheel 5 is rotatably connected to the wheel seat 4. A protrusion 51 is provided on the circumferential surface of the guide wheel 5. The center of the protrusion 51 is located on the central axis of the guide wheel 5.

[0030] The opposite surfaces of the two rows of embedded plates 6 are fixed with a connecting seat 7, and a guide assembly 8 is provided on the side of the connecting seat 7. The guide assembly 8 includes a rotating seat 88 rotatably connected to the connecting seat 7. The inner wall of the connecting seat 7 is fixed with this, and the rotating seat 88 is sleeved on the rotating shaft. When the rotating seat 88 rotates, it rotates with the rotating shaft as the axis. A long plate 81 is fixed to the side of the rotating seat 88, and a bottom support block 89 is fixed in the connecting seat 7. A square plate 82 is fixed to the side of the long plate 81. The square plate 82 is detachably connected to the bottom support block 89 by bolts, and the bolts pass through the square plate 8 2 and tighten it into the threaded groove on the bottom support block 89 to fix the square plate 82. When disassembling, just unscrew the bolts from the bottom support block 89. The side of the square plate 82 is detachably connected to the connecting plate 83 by bolts. Pass the bolts through the connecting plate 83 and the square plate 82, and then tighten the nuts on the bolts to fix the connecting plate 83 to the side of the square plate 82. When disassembling, just unscrew the bolts from the nuts. The top and bottom of the connecting plate 83 are fixed with guide rails 84. The number of guide rails 84 is two groups, and the two groups of guide rails 84 correspond to Figure 2The left side square plate 82 and the right side square plate 82 are shown, and two sets of guide rails 84 are respectively located on the left and right sides of the traction trolley 1, and the number of each set of guide rails 84 is two. The opposite surfaces of the two guide rails 84 are respectively fitted with the top and bottom of the connecting plate 83, and the guide wheel 5 is movably connected to the side of the guide rail 84 away from the connecting plate 83. A guide groove 85 is provided on the side of the guide rail 84 away from the connecting plate 83, and the protrusion 51 is movably connected to the inner wall of the guide groove 85. When the traction trolley 1 moves, it drives the guide wheel 5 to roll along the side of the guide rail 84 away from the connecting plate 83. At the same time, the protrusion 51 rolls along the inner wall of the guide groove 85 driven by the guide wheel 5, thereby guiding the traction trolley 1 when it moves.

[0031] like Figure 2 As shown, in this embodiment, a number of reinforcing ribs are fixed to the top and bottom of the long strip 81, and the reinforcing ribs are fixed to the side of the square plate 82. The reinforcing ribs are used to increase the contact area between the long strip 81 and the square plate 82, thereby improving the connection strength between the long strip 81 and the square plate 82.

[0032] like Figure 2 As shown, in this embodiment, a connecting strip is fixed to the side of the rotating seat 88, the end of the connecting strip is fixedly connected to the side of the square plate 82, and the side of the connecting strip close to the long plate 81 is fixedly connected to the surface of the long plate 81. The connecting strip is used to increase the contact area between the rotating seat 88 and the long plate 81 and the square plate 82, thereby improving the fixing strength of the rotating seat 88.

[0033] like Figure 3 As shown, in this embodiment, inclined plane 1 52 is provided on both sides of the protrusion 51, and inclined plane 2 86 adapted to inclined plane 1 52 is provided on the side surface of the inner wall of the guide groove 85. Inclined plane 1 52 is rotatably connected with inclined plane 2 86. Through the cooperation of inclined plane 1 52 and inclined plane 2 86, the contact area between the protrusion 51 and the inner wall of the guide groove 85 is increased. At the same time, under the action of inclined plane 1 52 and inclined plane 2 86, the guide wheel 5 is prevented from moving laterally on the guide rail 84, thereby improving the guiding ability of the traction trolley 1.

[0034] like Figure 5 As shown, in this embodiment, a second curved surface 87 is provided on the side of the inner wall of the guide groove 85 close to the connecting plate 83, and a first curved surface 53 adapted to the second curved surface 87 is provided on the protrusion 51. The first curved surface 53 is rotatably connected to the second curved surface 87. The cooperation between the first curved surface 53 and the second curved surface 87 increases the contact area between the inner wall of the guide groove 85 and the protrusion 51, thereby improving the guiding ability of the guide groove 85 to the guide wheel 5.

[0035] like Figure 5As shown, in this embodiment, a plurality of water-permeable holes 9 are opened in the curved surface 2 87 located above the connecting plate 83. When rainwater falls on the curved surface 2 87 located on the connecting plate 83, the rainwater can flow out from the water-permeable holes 9 to prevent rainwater from accumulating in the curved surface 2 87 located on the connecting plate 83, thereby effectively preventing the guide groove 85 located above the connecting plate 83 from rusting due to rainwater. The guide groove 85 located below the connecting plate 83 opens downward, and rainwater cannot enter the guide groove 85 located below the connecting plate 83, thereby preventing the guide groove 85 located below the connecting plate 83 from rusting due to rainwater, thereby improving the service life of the guide rails 84 located above and below the connecting plate 83.

[0036] like Figure 4 As shown, in this embodiment, a diagonal support plate 10 is fixed in the connecting seat 7, the top of the diagonal support plate 10 is in contact with the bottom of the rotating seat 88, and the diagonal support plate 10 is fixed to the side of the bottom support block 89 close to the embedded plate 6. The diagonal support plate 10 is used to support the rotating seat 88, and the cooperation between the diagonal support plate 10 and the bottom support block 89 jointly realizes the support of the long strip 81, thereby achieving stable support for the long strip 81.

[0037] Working principle: When the traction trolley 1 moves on the guide rail 84, the upper plate 2 and the lower plate 3 respectively drive the corresponding guide wheel 5 to move along the top of the guide rail 84 and the inner wall of the guide groove 85. The guide rail 84 needs to be replaced after long-term use. When replacing, first remove the traction trolley 1 from the guide rail 84, then remove the bolts that fix the long strip plate 81, and then rotate the guide rail 84 upward. The guide rail 84 drives the rotating seat 88 to rotate upward along the rotating axis of the inner wall of the connecting seat 7 through the connecting plate 83 and the long strip plate 81, and rotates the guide rail 84 to the cement floor. Above the plate 83, increase the operating space for disassembling the connecting plate 83, remove the bolts fixing the connecting plate 83, and then remove the guide rail 84. Then fix the new connecting plate 83 on the square plate 82 with bolts, and then rotate the guide rail 84 to the installation groove of the cement floor. At this time, the long plate 81 is fitted with the bottom support block 89 and the diagonal support plate 10. Then, pass the bolts fixing the long plate 81 through the long plate 81 and tighten them in the bottom support block 89, and the guide assembly 8 can be fixed. After fixing, the movement of the traction trolley 1 can be guided again.

[0038] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A traction device for automobile collision testing, comprising a traction trolley (1) and two rows of embedded plates (6) embedded in a mounting groove on a cement floor, characterized in that: An upper plate (2) is fixed on the top of the traction trolley (1), a lower plate (3) is fixed on the bottom of the traction trolley (1), wheel seats (4) are fixed on the opposite surfaces of the upper plate (2) and the lower plate (3), a guide wheel (5) is rotatably connected inside the wheel seat (4), a raised portion (51) is provided on the circumferential surface of the guide wheel (5), and the center of the raised portion (51) is located on the central axis of the guide wheel (5); The opposite surfaces of the two rows of embedded plates (6) are fixed with connecting seats (7), and the side of the connecting seat (7) is provided with a guide assembly (8), and the guide assembly (8) includes a rotating seat (88) rotatably connected in the connecting seat (7), and a long plate (81) is fixed on the side of the rotating seat (88), and a bottom support block (89) is fixed in the connecting seat (7). A square plate (82) is fixed on the side of the long plate (81), and the square plate (82) is detachably connected to the bottom support block (89) by bolts. 2) A connecting plate (83) is detachably connected to the side by bolts, and guide rails (84) are fixed to the top and bottom of the connecting plate (83). The opposite surfaces of the two guide rails (84) are respectively fitted with the top and bottom of the connecting plate (83). The guide wheel (5) is movably connected to the side of the guide rail (84) away from the connecting plate (83). A guide groove (85) is provided on the side of the guide rail (84) away from the connecting plate (83), and the protrusion (51) is movably connected to the inner wall of the guide groove (85).

2. A traction device for automobile collision testing according to claim 1, characterized in that: A plurality of reinforcing ribs are fixed to the top and bottom of the long strip (81), and the reinforcing ribs are fixed to the side surfaces of the connecting plate (83).

3. The traction device for automobile collision testing according to claim 1, characterized in that: A connecting strip is fixed to the side of the rotating seat (88), the end of the connecting strip is fixedly connected to the side of the square plate (82), and the side of the connecting strip close to the long plate (81) is fixedly connected to the surface of the long plate (81).

4. The traction device for automobile collision testing according to claim 1, characterized in that: The two sides of the protrusion (51) are provided with inclined plane 1 (52), and the side surface of the inner wall of the guide groove (85) is provided with inclined plane 2 (86) adapted to inclined plane 1 (52), and inclined plane 1 (52) is rotatably connected to inclined plane 2 (86).

5. The traction device for automobile collision testing according to claim 4, characterized in that: A second curved surface (87) is provided on the inner wall of the guide groove (85) near the connecting plate (83), and a first curved surface (53) adapted to the second curved surface (87) is provided on the protruding portion (51), and the first curved surface (53) is rotatably connected to the second curved surface (87).

6. The traction device for automobile collision testing according to claim 5, characterized in that: A plurality of water-permeable holes (9) are provided in the second curved surface (87) located above the connecting plate (83).

7. The traction device for automobile collision testing according to claim 1, characterized in that: A diagonal support plate (10) is fixed in the connecting seat (7), the top of the diagonal support plate (10) is in contact with the bottom of the rotating seat (88), and the diagonal support plate (10) is fixed to one side of the bottom support block (89) close to the embedded plate (6).

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