Vehicle puncture testing device
By combining the magnetic connection between the electromagnet and the hammer block with the linear module, the problems of large mechanical friction error and inconvenient adjustment in traditional vehicle puncture testing equipment are solved, achieving precise control of the hammer block position and improving testing accuracy and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional vehicle puncture testing equipment suffers from large mechanical friction errors and a mechanical connection method, making it difficult to accurately adjust the position of the hammer block and affecting test accuracy.
The hammer block is magnetically connected to an electromagnet, combined with a linear module and a locking unit. The hammer block is precisely adjusted by a winch and wire rope guidance, and the connection is maintained when the power is off, reducing the impact of friction.
It enables precise position adjustment of the hammer block, reduces mechanical friction, and improves testing accuracy and ease of operation of the equipment.
Smart Images
Figure CN224019323U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to test technical field especially is vehicle puncture test device. BACKGROUND
[0002] With the growth of the market demand of recreational off-road vehicles, its chassis and wheel well structure are vulnerable to debris puncture threats under complex road conditions, and the safety of key components such as power battery packs is facing severe tests. The current international standards (ISO 5353, ANSI-ROVHA 1-2013:3) clearly require debris penetration testing on the vehicle front wheel well, seat index point (SIP) and other areas to verify the vehicle bottom protection performance. However, the traditional test equipment has the following technical bottlenecks; the existing technology, when puncture testing is performed by hammering block, needs to minimize the error caused by mechanical friction, and the hammering block and lifting device need to be connected mechanically. SUMMARY
[0003] The utility model provides vehicle puncture test device in view of the prior art's insufficient.
[0004] To solve the above technical problems, the utility model discloses a vehicle puncture test device through the following technical scheme:
[0005] The electromagnet can be temporarily magnetically connected with the hammering block.
[0006] The connecting piece connects the electromagnet and the linear module.
[0007] The locking unit is located between the connecting piece and the hammering block, and the locking unit includes a telescopic locking tongue and a limiting rod for cooperating with the locking tongue. The limiting rod is arranged on the hammering block. When the first inclined surface of the locking tongue abuts against the limiting rod, the limiting rod overcomes the locking tongue and moves to the upper side of the locking tongue to realize locking with the locking tongue.
[0008] In the above scheme, preferably, the outer side of the hammering block is provided with a frame, a plurality of steel wires for guiding the hammering block are arranged in the frame, and the hammering block is slidingly connected to the steel wires.
[0009] In the above scheme, preferably, the frame is connected with a winch, the winch is provided with a plurality of guide rods on the frame, and the guide rods pass through the frame and the linear bearings thereon.
[0010] In the above scheme, preferably, the frame is provided with a linear module, the linear module includes a sliding block, the sliding block is fixedly connected with the connecting piece, and the sliding block drives the connecting piece to move.
[0011] Preferably, the limiting rod is bent at both ends to form a connecting part, and the connecting part is connected to the hammering block through a plate body.
[0012] Preferably, the locking unit further comprises a box body, the locking tongue is arranged in the box body, a first inclined surface of the locking tongue is arranged towards the limiting rod, and an electromagnetic control member is arranged on one side of the locking tongue.
[0013] Preferably, the box body comprises a groove, and the locking tongue is arranged on a side wall of the groove.
[0014] Preferably, the first electromagnet and the electromagnetic control member are electrically connected.
[0015] Preferably, the hammering block is connected to the impact wood stick through a bolt.
[0016] The utility model discloses a hammering block positioner, which comprises a frame, a limiting rod, a hammering block, a first electromagnet, a box body, a locking tongue, an electromagnetic control member and a second electromagnet. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a whole schematic view of the utility model.
[0018] Figure 2 It is a frame and installation schematic view of the utility model.
[0019] Figure 3 It is a linear module and hammering block installation schematic view of the utility model.
[0020] Figure 4 It is a box body and hammering block connection schematic view of the utility model.
[0021] Figure 5 It is Figure 4 the A enlarged view of the utility model. DETAILED DESCRIPTION
[0022] The utility model will be described in further detail in combination with the drawings and specific embodiment: refer to Figures 1-5The vehicle puncture testing device comprises a frame 29, a hammering block 1, an electromagnet 3, a connecting piece 4, a linear module 5 and a locking unit, and each component cooperates to realize puncture testing on the area below the front wheel wheelhouse and the seat index point of the seat in front of the vertical plane and passing through the last seat of the recreational off-road vehicle.
[0023] The frame 29 is welded by high-strength square steel, and two vertical steel wire ropes 10 are arranged in the frame 29 in parallel. The diameter of the steel wire rope 10 is 8-10 mm, and the tensile strength is not less than 2000 MPa. The two ends are anchored to the top and bottom beams of the frame 29 by bolts.
[0024] The hammering block 1 is provided with through holes at four corners, and linear bearings 13 with nylon bushings are embedded in the through holes, so that the hammering block 1 can slide along the steel wire rope 10 without friction. The hammering block 1 is made of counterweight cast iron, and the bottom is detachably connected to an impact wood stick 20 through an M12 high-strength bolt. The impact wood stick 20 is made of hard oak and is treated with a fireproof coating on the surface. The tip of the impact wood stick 20 is conical with a taper angle of 30°, which is used to simulate the actual stress state during puncture.
[0025] The electromagnet 3 is a direct-current electromagnetic device, and the electromagnet 3 is fixedly connected to the slider 14 of the linear module 5 through the connecting piece 4. The linear module 5 selects an IAI linear servo motor, which is vertically installed on the frame 29 at the top and bottom of the frame 29. The slider 14 of the linear module 5 is driven by a servo motor and can move up and down along the frame 29. When the electromagnet 3 is powered, the electromagnet 3 can attract the hammering block 1 and drive the hammering block 1 to move synchronously.
[0026] In order to ensure that the connecting piece 4 can be connected with the hammering block 1 in the case of battery disconnection, the testing device further comprises a locking unit. The locking unit comprises a box body 17, a lock tongue 6, an electromagnetic control member 18 and a limiting rod 7. The box body 17 is internally provided with a rectangular groove 19. The lock tongue 6 is slidably connected to the side wall of the groove 19. The electromagnetic control member 18 is arranged on one side of the lock tongue 6. A reset spring 21 is arranged between the electromagnetic control member 18 and the lock tongue 6. When the electromagnetic control member 18 is powered, the lock tongue 6 overcomes the reset spring 21 and moves into the box body 17 to be separated from the limiting rod 7.
[0027] Meanwhile, the end of the lock tongue 6 close to the limiting rod 7 is provided with a 45° first inclined surface 8, and the other end is coaxially aligned with the push rod of the electromagnetic control member 18. The limiting rod 7 is a round steel with a diameter of 20 mm, and the two ends are bent into U-shaped connecting parts 16. The connecting parts 16 are connected to the hammering block 1 through a connecting plate 23, so that the limiting rod 7 can be limited or released by cooperating with the lock tongue 6.
[0028] Further, the limiting rod 7 is telescopically arranged in the connecting plate 23, and a buffer spring 22 is arranged between the bent connecting part 16 of the limiting rod 7 and the mounting hole of the connecting block, so as to buffer the limiting rod 7 during frequent impact with the lock tongue 6, thereby prolonging the service life of the limiting rod 7.
[0029] The frame 29 is connected with a hoist 11, and the hoist 11 is provided with a plurality of guide rods 12 which pass through the frame 29 and the linear bearing 13 thereon, and the hoist 11 is used to preliminarily adjust the position of the hammering block 1, so as to preliminarily adjust the position of the hammering block 1.
[0030] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A vehicle puncture testing device, characterized in that: include Hammering block (1), which is guided to move within the frame (29); Electromagnet (3), wherein the electromagnet (3) may be temporarily magnetically connected to the hammer block (1); Connector (4), which connects electromagnet (3) to linear module (5); and A locking unit located between the connector (4) and the hammer block (1) includes a retractable latch (6) and a limiting rod (7) for engaging with the latch (6). The limiting rod (7) is disposed on the hammer block (1). When the first inclined surface (8) of the latch (6) abuts against the limiting rod (7), the limiting rod (7) moves against the latch (6) to the upper side of the latch (6) to achieve locking with the latch (6).
2. The vehicle puncture testing device according to claim 1, characterized in that: A frame (29) is provided on the outside of the hammer block (1), and a plurality of steel wire ropes (10) for guiding the hammer block (1) are provided in the frame (29). The hammer block (1) is slidably connected to the steel wire ropes (10).
3. The vehicle puncture testing device according to claim 2, characterized in that: The frame (29) is connected to the winch (11), and the winch (11) and the frame (29) are provided with a number of guide rods (12), which pass through the frame (29) and the linear bearing (13) thereon.
4. The vehicle puncture testing device according to claim 2 or 3, characterized in that: A linear module (5) is provided on the frame (29). The linear module (5) includes a slider (14). The slider (14) is fixedly connected to the connector (4). The slider (14) drives the connector (4) to move.
5. The vehicle puncture testing device according to claim 4, characterized in that: The limiting rod (7) is bent at both ends to form a connecting part (16), and the connecting part (16) is connected to the hammer block (1) through the plate.
6. The vehicle puncture testing device according to claim 5, characterized in that: The locking unit also includes a housing (17), in which the locking tongue (6) is provided. The first inclined surface (8) of the locking tongue (6) is set toward the limiting rod (7). An electromagnetic control element (18) is provided on one side of the locking tongue (6). When the electromagnetic control element (18) is energized, the locking tongue (6) moves toward the electromagnetic control element (18) against the return spring (21).
7. The vehicle puncture testing device according to claim 6, characterized in that: The box body (17) includes a groove (19), and the locking tongue (6) is disposed on the side wall of the groove (19).
8. The vehicle puncture testing device according to claim 7, characterized in that: The electromagnet (3) and the electromagnetic control unit (18) are electrically connected.
9. The vehicle puncture testing device according to claim 1, characterized in that: The hammer block (1) is connected to the impact wooden rod (20) by bolts.