Testing device for preventing drop hammer eccentric fuse striking method
By designing a fuse strike test device including a base plate, mounting block, cover plate and elastic parts, the problem of fuse deflection caused by the inability to accurately strike the strike pin or the strike rod is solved, and the accuracy and safety of the test are improved.
Patent Information
- Application Number
- CN202421866709.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the completeness test of fuse explosion, the drop hammer cannot accurately hit the firing needle or pole, causing the test fuse to fall, affecting the test effect and bringing safety hazards.
A fuze strike test device to prevent eccentricity of the falling hammer was designed, including a base plate, mounting block, cover plate and elastic member. Through the coordination of the elastic member and the limit rod, the center line of the fuze support coincides with the center line of the guide tube, and the precise positioning and stable placement of the fuze are achieved.
It effectively avoids the problem of fuse deflection caused by the inability to accurately hit the needle or the striker, improves the accuracy and safety of the test, and reduces the complexity of manpower operations and safety hazards during the test.
Smart Images
Figure CN222881841U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fuze test devices, in particular to a test device for preventing a drop-hammer eccentric fuze from striking. Background Art
[0002] The fuze explosion completeness test is a test to assess whether each explosive component in the fuze explosion sequence can explode completely in sequence. It mainly involves modifying the fuze to a ready-to-fire state and testing it in a detonation tower (or explosion pit) using methods such as throwing, striking, electrifying, fuse or pin pulling.
[0003] The striking method is to place the modified test fuze on the cast iron anvil in the explosion chamber, and then let the drop hammer fall freely from the upper end of the guide tube of the detonator to strike the firing pin or the firing rod to detonate the fuze. According to regulations, the test fuze needs to be inserted with the firing pin or the firing rod, correctly placed in the center of the cast iron anvil in the explosion chamber, and the drop hammer is dropped from the guide tube port, and the operator should quickly leave the guide tube port.
[0004] However, during the test, due to the non-straightness of the guide tube and burrs on the inner surface, the misalignment of the center line of the cast iron anvil with the center line of the guide tube, and the presence of pits and burrs on the upper surface of the cast iron anvil due to age, the drop hammer may not be able to accurately strike the firing pin or rod, which may easily cause the test fuze to tip over, affecting the test results and posing a huge safety hazard. Utility Model Content
[0005] In order to solve the technical problem that the above-mentioned drop hammer cannot accurately strike the firing pin or the firing rod, thus easily causing the tested fuze to deflect, the utility model provides a test device for preventing the drop hammer from striking the eccentric fuze.
[0006] The technical solution adopted by the utility model to solve its technical problems is:
[0007] A test device for preventing eccentric fuze impact by dropping hammer comprises a base plate, a mounting block and a cover plate; the base plate is fixedly connected to the mounting block, the mounting block is provided with a test groove and an elastic member, the cover plate is rotatably connected to the mounting block and abuts against the elastic member, and a tubular fuze support is fixedly provided in the test groove.
[0008] Furthermore, the elastic member is a telescopic spring.
[0009] Furthermore, an elastic support is fixedly provided on the mounting block, a limiting rod is fixedly provided on the elastic support, the telescopic spring and the limiting rod are both fixedly connected to the elastic support, and the telescopic spring is sleeved on the limiting rod.
[0010] Furthermore, a rotating seat is fixedly provided on the mounting block, a rotating shaft is rotatably provided on the rotating seat, and the rotating shaft is fixedly connected to the cover plate.
[0011] Furthermore, the number of the rotating seats is two.
[0012] Beneficial effects of the utility model:
[0013] 1. The utility model adopts a cover plate, an elastic member and a fuze support to accurately locate the firing pin or the firing rod of the fuze under test, increase the striking area of the drop hammer, avoid the fuze under test from tilting due to the drop hammer failing to accurately strike the firing pin or the firing rod, affect the test results and cause safety hazards, and solve the problem that the fuze under test may tilt due to the drop hammer failing to accurately strike the firing pin or the firing rod;
[0014] 2. The utility model adopts a base plate and a fuze support which are fixed on a cast iron anvil in the explosion chamber. The center line of the fuze support coincides with the center line of the guide tube, so the firing pin or the firing rod of the test fuze can be accurately located. This effectively prevents the eccentric placement of the test fuze caused by the misalignment of the firing pin or the firing rod with the center line of the guide tube when the test fuze is placed on the cast iron anvil in the explosion chamber. It can also save manpower and avoid the need to fine-tune the position each time the fuze is placed due to an excessive amount of fuze test samples. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of a test device for preventing a drop-weight eccentric fuze strike method in the utility model;
[0016] Figure 2 It is a structural schematic diagram of the top of the bottom plate of a test device for preventing the impact method of a drop-weight eccentric fuze in the utility model;
[0017] Figure 3 A diagram showing the connection relationship between a bottom plate and a cast iron anvil of a test device for preventing a drop-weight eccentric fuze strike method in the utility model;
[0018] Among them, 1-base plate, 2-mounting block, 3-elastic support, 4-telescopic spring, 5-limit rod, 6-fuze support, 7-test groove, 8-cover plate, 9-rotating shaft, 10-rotating seat, 11-cast iron anvil. DETAILED DESCRIPTION
[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.
[0020] Example:
[0021] The specific implementation process of the utility model is as follows: a test device for preventing the impact of a drop hammer eccentric fuze, such as Figure 1-Figure 3As shown, it includes a base plate 1, a mounting block 2 and a cover plate 8; the base plate 1 is fixedly connected to the mounting block 2, the mounting block 2 is provided with a test groove 7 and an elastic member, the cover plate 8 is rotatably connected to the mounting block 2 and abuts against the elastic member, and a tubular fuze support 6 is fixedly provided in the test groove 7.
[0022] The base plate 1 is fixed on the cast iron anvil 11 in the explosion chamber. When the test is to be carried out, the fuze is first placed in the fuze support 6, and the firing pin or firing rod of the fuze will be aligned with the center line of the guide tube. Then the cover plate 8 is rotated to place the cover plate 8 on the elastic member. The cover plate 8 will be supported by the elastic member. There is a gap between the bottom surface of the cover plate 8 and the top of the firing pin or firing rod on the fuze without contact. Then the personnel evacuate the explosion chamber and drop a drop hammer from the upper end of the guide tube of the detonator tower. The drop hammer will hit the cover plate 8, causing the cover plate 8 to rotate downward and hit the firing pin or firing rod. Then the fuze is detonated. The top and bottom ends of the test slot 7 are both open. The fuze support 6 is fixed on the base plate 1 and is located in the test slot 7.
[0023] like Figure 1 As shown, the elastic member is a telescopic spring 4.
[0024] The telescopic spring 4 can support the cover plate 8. When the cover plate 8 is hit by a drop hammer and rotated downward, the cover plate 8 will compress the telescopic spring 4.
[0025] like Figure 1 As shown, an elastic support 3 is fixedly provided on the mounting block 2 , a limiting rod 5 is fixedly provided on the elastic support 3 , the telescopic spring 4 and the limiting rod 5 are both fixedly connected to the elastic support 3 , and the telescopic spring 4 is sleeved on the limiting rod 5 .
[0026] The elastic support 3 and the limiting rod 5 can limit the telescopic spring 4 and reduce the left-right shaking amplitude of the telescopic spring 4 when it is extended or retracted.
[0027] like Figure 1 and Figure 2 As shown, a rotating seat 10 is fixedly provided on the mounting block 2 , a rotating shaft 9 is rotatably provided on the rotating seat 10 , and the rotating shaft 9 is fixedly connected to the cover plate 8 .
[0028] When the cover plate 8 is rotated, the rotating shaft 9 will rotate together with the cover plate 8 and rotate relatively with the rotating seat 10 .
[0029] like Figure 1 and Figure 2 As shown, the number of the rotating seats 10 is two.
[0030] The two rotating seats 10 can form supports for both ends of the rotating shaft 9 .
[0031] The above embodiments should not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent conversion shall fall within the protection scope of the present invention.
Claims
1. A test device for preventing the impact of a drop-weight eccentric fuze, characterized in that: It includes a base plate, a mounting block and a cover plate; The bottom plate is fixedly connected to the mounting block, the mounting block is provided with a test groove and an elastic member, the cover plate is rotatably connected to the mounting block and abuts against the elastic member, and a tubular fuse support is fixedly provided in the test groove.
2. The device for preventing the drop weight eccentric fuze from striking the target according to claim 1, characterized in that: The elastic member is a telescopic spring.
3. The device for preventing the drop weight eccentric fuze from striking the target according to claim 2, characterized in that: An elastic support is fixedly arranged on the mounting block, a limiting rod is fixedly arranged on the elastic support, the telescopic spring and the limiting rod are both fixedly connected to the elastic support, and the telescopic spring is sleeved on the limiting rod.
4. The device for preventing drop weight eccentric fuze impact method according to claim 1, characterized in that: A rotating seat is fixedly arranged on the mounting block, a rotating shaft is rotatably arranged on the rotating seat, and the rotating shaft is fixedly connected to the cover plate.
5. The device for preventing drop weight eccentric fuze impact method according to claim 4, characterized in that: The number of the rotating seats is two.