Impact device for testing penetrability of chippings

Abstract

The utility model discloses an impact device used for a debris penetration performance test, comprising a balancing weight, a first channel arranged below the balancing weight, a locking unit arranged in the first channel, the locking unit comprising a telescopic locking block and a first spring used for resetting, the locking block having a first inclined surface, the first inclined surface having a second inclined surface, and the second inclined surface having a second inclined surface. The locking block is connected into the balancing weight through the first spring, and the impact bar enters the first channel and moves to the locking block in the groove to form axial locking. Through cooperation of a first inclined plane of a locking block and a groove of an impact rod, axial locking is automatically triggered when the impact rod is inserted, meanwhile, under the action of a pull rod and a second spring, the impact rod can be rapidly locked in the radial direction, and through cooperation of a first plane of the impact rod and a second plane of a first channel, circumferential locking of the impact rod is achieved; the impact rod can be quickly disassembled and assembled, and the replacement time is greatly shortened. Triple locking ensures that the impact rod is free of axial movement or radial deviation in the impact process, and test repeatability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of penetration performance test, especially is used for the impact device of chippings penetration performance test. BACKGROUND

[0002] In the field of chippings penetration performance test, the common test component position is the point and the joint, sharp angle and the like design on the seat index point below the ROV forward wheel cabin and the vehicle most likely to be impacted by the debris. The traditional impact device includes an impact rod for contacting the test component and a weight block for changing the impact force. The two are usually fixedly connected by bolts. The impact rod has various different lengths. In practice, the impact rod often needs to be disassembled and installed, which is relatively cumbersome. Moreover, in repeated impact tests, the bolt-connected impact rod is prone to loosening or deviation, resulting in test data deviation. SUMMARY

[0003] The utility model provides impact device for chippings penetration performance test in view of the deficiency in prior art.

[0004] To solve the above technical problems, the utility model solves the problem by the following technical scheme: the impact device for chippings penetration performance test includes a counterweight, a first channel is arranged below the counterweight, a locking unit is arranged in the first channel, the locking unit includes a telescopic locking block and a first spring for resetting, the locking block has a first inclined surface, the locking block is connected in the counterweight through the first spring, and the impact rod enters the first channel and moves to the locking block in the groove to form axial locking.

[0005] In the above scheme, preferably, the counterweight is provided with a pull rod matched with the locking block, the pull rod is longitudinally slidingly arranged in the counterweight, a second spring is arranged between the pull rod and the counterweight rod, and the pull rod acts on the locking block to radially fix the impact rod.

[0006] In the above scheme, preferably, the pull rod includes a second inclined surface, and the second inclined surface acts on the upper part of the locking block.

[0007] In the above scheme, preferably, the first spring is a tension spring, and the elastic force of the second spring is greater than that of the second spring.

[0008] In the above scheme, preferably, the impact device further includes a control member, a plurality of guide rods are connected to the control member, a connecting rod is arranged between the top parts of the guide rods, and a damper is arranged between the connecting rods.

[0009] In the above scheme, preferably, the impact device is arranged on a portal frame, the portal frame includes a horizontal rod and a lifting unit on the horizontal rod, and the impact device is temporarily locked on the electromagnetic lock of the lifting unit.

[0010] In the above solution, preferably, the lifting unit comprises linear bearings matching guide rods, and the guide rods are arranged through the linear bearings.

[0011] In the above solution, preferably, the impact rod comprises a first plane arranged symmetrically, and the first channel is provided with a second plane matching the first plane, and when the first plane and the second plane are aligned, the impact rod enters the first channel.

[0012] The utility model discloses the beneficial effects are: through the cooperation of the first inclined surface of lock block and the recess of impact rod, realize the automatic trigger axial locking when impact rod inserts, and under the action of pull rod and second spring, impact rod can be locked quickly in radial direction, and cooperate the first plane of impact rod and the second plane of first channel, realize the circumferential locking of impact rod, realize the quick detachable quick assembly of impact rod, and the replacement time is shortened greatly. Threefold locking ensures that impact rod does not move axially or deviate radially during impact, and improves test repeatability. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the schematic view of the impact device of the utility model.

[0014] Figure 2 It is the schematic view of the counterweight block and impact rod installation of the utility model.

[0015] Figure 3 It is the front view of the counterweight block and impact rod of the utility model.

[0016] Figure 4 It is the A-A section view of the utility model. Figure 3

[0017] Figure 5 It is the schematic view of B of the utility model. Figure 4

[0018] Figure 6 It is the three-dimensional view of the impact rod and counterweight block of the utility model.

[0019] Figure 7 It is the schematic view of the impact device and gantry installation of the utility model. DETAILED DESCRIPTION

[0020] The utility model will be described in further detail in combination with the drawings and specific embodiments: refer to Figures 1-7 The impact device for the penetration performance test of debris, wherein the impact device comprises a counterweight block 1, a locking unit and a control member 10. The impact device is installed on the gantry 14 as a whole, wherein the gantry 14 comprises a vertical column and a cross bar 15 on the vertical column, and the impact device is installed on the cross bar 15.

[0021] ​​The bottom of the counterweight 1 is provided with a longitudinal first channel 2, an impact rod 6 is installed in the first channel 2, the impact rod 6 is used for impacting contact component, the top of the counterweight 1 is connected with the control member 10, and the two sides of the control member 10 are provided with guide rods 11, the guide rods 11 are slidingly arranged in a cross rod 15 to form an impacting device.

[0022] Meanwhile, the length specifications of the impact rod 6 are various, and the impact rod 6 needs to be replaced in adaptation, in order to facilitate the replacement of the impact rod 6, a locking unit is arranged in the first channel 2, the locking unit comprises a lock block 3 which can be transversely extended and contracted and a first spring 4, that is, the first spring 4 is connected with the lock block 3 and the lock block 3 can be extended and contracted on the inner wall of the first channel 2.

[0023] The lock block 3 is provided with a first inclined surface 5, the first inclined surface 5 is arranged towards the outside of the first through hole, that is, when the impact rod 6 enters the first channel 2, the impact rod 6 acts on the first inclined surface 5, and in order to match the lock tongue, a groove 22 is arranged, the groove 22 is used for limiting locking.

[0024] The first spring 4 can be a compression spring, that is, in the static state, the lock tongue protrudes from the inner wall of the first channel 2, and when the impact rod 6 enters, the lock tongue is pressed back into the counterweight 1, further, when the impact rod 6 abuts against the end of the first channel 2, the lock tongue is clamped in the groove 22, thereby realizing the locking of the two, that is, the axial direction of the impact rod 6 is locked.

[0025] Further, in order to strengthen the fixation of the impact rod 6, the first spring 4 is a tension spring, when the first spring 4 is in the static state, the lock tongue is located in the counterweight 1, and the locking unit further comprises a pull rod 7 and a second spring 8 which are matched.

[0026] The pull rod 7 is located in the counterweight 1, and the pull rod 7 can be longitudinally slid on the top of the counterweight 1, further, the pull rod 7 is located above the lock block 3, and the lower end of the pull rod 7 is provided with a second inclined surface 9 which is in contact with the lock block 3. The directions of the second inclined surface 9 and the first inclined surface 5 are the same, and after the second inclined surface 9 is in contact with the lock block 3, the two are located on the diagonal line of the lock block 3.

[0027] The second spring 8 is installed between the pull rod 7 and the counterweight 1, and the elastic force of the second spring 8 is greater than that of the first spring 4. When the pull rod 7 is not operated, the second spring 8 is in the static state, the pull rod 7 is pressed against the top of the lock block 3 through the second inclined surface 9 under the action of the elastic force, and the lock block 3 is moved towards the first channel 2, that is, when the impact rod 6 is located in the first channel 2, the lock block 3 overcomes the pulling force of the first spring 4 and extends into the channel to be in contact with the groove 22, thereby realizing the radial locking of the impact rod 6.

[0028] The impact rod 6 is substantially cylindrical, and a first flat surface 18 is formed on both sides of the impact rod 6 corresponding to the locking units, and a second flat surface 19 corresponding to the first flat surface 18 is formed on the inner wall of the first channel 2. When the impact rod 6 is clamped, the first flat surface 18 is aligned with the second flat surface 19 on the inner wall of the channel, and then the impact rod 6 is inserted smoothly to achieve the circumferential locking of the impact rod.

[0029] Further, the first channel 2 of the counterweight 1 is provided with a second channel 20, and the control member 10 is connected to the counterweight through the second channel 20 by a bolt, and the guide rods 11 fixed perpendicularly on both sides of the control member 10 need to pass through corresponding linear bearings 17.

[0030] That is, the linear bearings 17 are arranged on the crossbar, so that the control member 10 can slide axially along the guide rods 11, and the control member 10 and the crossbar 15 are provided with a lifting unit 16, wherein the linear bearings 17 are provided with a connecting member 21, and the bottom of the connecting member 21 is provided with an electromagnet for magnetically attracting the control member 10.

[0031] Meanwhile, the top of the connecting member 21 is connected to the linear end of the crossbar 15 through a wire in a way that the wire cooperates with a winch, and the position of the impact rod 6 and the workpiece to be tested is adjusted through the cooperation of the two, so as to achieve the impact experiment of the debris. That is, when the electromagnet is powered off, the control member 10 is disconnected from the connecting member 21, and the counterweight 1 drives the impact rod 6 to freely fall and impact the workpiece to be tested.

[0032] Meanwhile, the top of the guide rod 11 is connected through a connecting rod 12, and a damper 13 is arranged on the connecting rod 12, so that when the impact rod 11 penetrates the tested component, the guide rod 11 is limited by the damper 13 and cannot act on the crossbar 15, thereby prolonging the service life of the gantry 14 and the related guide rods 11.

[0033] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; 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 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. An impact device for testing debris penetration performance, characterized in that: The device includes a counterweight (1), a first channel (2) is provided below the counterweight (1), a locking unit is provided in the first channel (2), the locking unit includes a retractable locking block (3) and a first spring (4) for resetting, the locking block (3) has a first inclined surface (5), the locking block (3) is connected to the counterweight (1) by the first spring (4), and the impact rod (6) enters the first channel (2) and moves to the locking block (3) in the groove (22) to form an axial lock.

2. The impact device for testing debris penetration performance according to claim 1, characterized in that: The counterweight (1) is matched with the locking block (3) and is provided with a pull rod (7). The pull rod (7) is longitudinally slidably disposed in the counterweight (1). A second spring (8) is provided between the pull rod (7) and the counterweight rod. The pull rod (7) acts on the locking block (3) to radially fix the impact rod (6).

3. The impact device for testing debris penetration performance according to claim 2, characterized in that: The pull rod (7) includes a second inclined surface (9), which acts on the upper part of the locking block (3).

4. The impact device for testing debris penetration performance according to claim 3, characterized in that: The first spring (4) is a tension spring, and the elastic force of the second spring (8) is greater than that of the second spring (8).

5. The impact device for testing debris penetration performance according to claim 1 or 4, characterized in that: The impact device also includes a control component (10), on which a plurality of guide rods (11) are connected, and a connecting rod (12) is provided between the tops of the guide rods (11), and a damper (13) is provided between the connecting rods (12).

6. The impact device for testing debris penetration performance according to claim 5, characterized in that: The impact device is mounted on a gantry (14), which includes a crossbar (15) and a lifting unit (16) located on the crossbar (15). The impact device is temporarily locked to an electromagnetic lock on the lifting unit (16).

7. The impact device for testing debris penetration performance according to claim 6, characterized in that: The lifting unit (16) includes a plurality of linear bearings (17) that match the guide rods (11), the guide rods (11) being arranged through the linear bearings (17).

8. The impact device for testing debris penetration performance according to claim 4, characterized in that: The impact rod (6) includes a first plane (18) arranged symmetrically, and the first channel (2) is provided with a second plane (19) matching the first plane (18). When the first plane (18) and the second plane (19) are aligned, the impact rod (6) enters the first channel (2).

Images