Tool for detecting protruding amount of piston of counter-recoil machine

Abstract

The utility model provides a counter-recoil machine piston protruding amount detection tool, which is applied to the technical field of artillery counter-recoil machine detection tools, and is characterized in that the counter-recoil machine piston protruding amount detection tool comprises a grip mechanism and a magnetic lantern ring, the magnetic lantern ring is flexibly connected with the grip mechanism, and the magnetic lantern ring is used for being magnetically attracted and fixed on a piston rod; the sliding ruler is connected to the magnetic lantern ring in a sliding mode, and a transmission assembly in transmission connection with the sliding ruler is arranged on the grip mechanism; scale marks are arranged on the sliding ruler; the vernier is connected to the sliding ruler in a sliding manner; in an initial state, one end face of the vernier corresponds to the zero scale of the scale marks on the sliding ruler; the device has the technical effects that the device can well adapt to a structural space where the front end of a certain type of artillery counter-recoil machine is located, and the protruding length of the piston at the front end of the counter-recoil machine is accurately measured.

Description

Technical Field

[0001] This utility model relates to the technical field of artillery recoil mechanism testing tools, and in particular to a recoil mechanism piston protrusion testing tool. Background Technology

[0002] The recoil mechanism is an important component of the recoil system of artillery. Its function is to store energy when the gun recoils and release the energy to push the gun back to its original position after the gun has recoiled to the correct position.

[0003] refer to Figure 1 The recoil mechanism of a certain type of artillery includes a cylinder 1, a piston 2 housed within the cylinder 1, and a piston rod 3 connected to the piston 2. The distance between the front end of the piston 2 and the front end of the cylinder 1 is the piston protrusion. Checking the piston protrusion is a crucial part of the pre-firing technical inspection of the artillery, and the accuracy of the inspection results directly affects firing safety. Especially after the recoil mechanism has been disassembled and repaired, the piston protrusion needs to be checked and monitored multiple times. By comparing accurate data, it can be determined whether there are still leaks in the recoil mechanism. However, due to the confined and irregularly shaped measurement space at the front of the recoil mechanism, conventional tools are unusable, and only visual inspection is possible, making it difficult to obtain accurate data and hindering the analysis and assessment of the technical condition of this type of artillery recoil mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a tool for detecting the protrusion of the recoil mechanism piston. Its advantage is that the tool can be well adapted to the structural space of the front end of a certain type of artillery recoil mechanism and accurately measure the length of the protrusion of the front end piston of the recoil mechanism.

[0005] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0006] A tool for detecting the protrusion of a reciprocating machine piston includes: a grip mechanism;

[0007] A magnetic collar, which is flexibly connected to the grip mechanism, is used to magnetically fix it to the piston rod;

[0008] A sliding ruler is slidably connected to a magnetic collar, and the grip mechanism is provided with a transmission component that is pulsatorically connected to the sliding ruler; the sliding ruler is provided with scale lines.

[0009] A vernier is slidably connected to a sliding ruler; in the initial state, one end of the vernier corresponds to the zero mark on the scale line of the sliding ruler.

[0010] In one embodiment of the present invention, the magnetic collar includes a housing and an electromagnet fixed inside the housing; one side wall of the housing is an arc-shaped structure that cooperates with the piston rod, and a sliding groove is provided on the side wall of the housing opposite to the arc-shaped structure.

[0011] In one embodiment of the present invention, the sliding ruler includes a sliding ruler that is slidably connected to a sliding groove and a first baffle that is integrally formed with the sliding ruler and located on one side of the housing; a strip-shaped hole is provided in the middle of the sliding ruler.

[0012] In one embodiment of this utility model, the scale lines are disposed on a sliding ruler.

[0013] In one embodiment of the present invention, the width of the first baffle is greater than the width of the groove.

[0014] In one embodiment of the present invention, the vernier includes a slide rod located in a strip hole, a second baffle integrally formed on one end of the slide rod and located on one side of the housing, a limiting sleeve sleeved on the other end of the slide rod, and a screw threadedly connected to the limiting sleeve and fixing the limiting sleeve and the slide rod together.

[0015] In one embodiment of the present invention, the grip mechanism includes a handle and a mounting cylinder fixed on the handle, wherein the mounting cylinder is provided with a sliding groove.

[0016] In one embodiment of the present invention, the transmission assembly includes a slider that is slidably connected to the sliding groove, a flexible shaft that is fixedly connected to the slider at one end and to the sliding ruler at the other end, and a flexible tube that is fixedly connected to the mounting cylinder at one end and to the magnetic collar at the other end, wherein the flexible tube sleeves the flexible shaft inside.

[0017] In one embodiment of this utility model, the handle includes a housing fixedly connected to the mounting cylinder, a PCB board fixed inside the housing, and a battery module installed inside the housing and electrically connected to the PCB board; the electromagnet is electrically connected to the PCB board.

[0018] In one embodiment of this utility model, a power button electrically connected to the PCB board is installed on the mounting cylinder.

[0019] As described above, the reciprocating machine piston protrusion detection tool of this utility model has the following beneficial effects:

[0020] 1. The magnetic collar is flexibly connected to the grip mechanism, which can adapt to the narrow and irregular structural space of the front end of a certain type of artillery recoil mechanism; the magnetic collar is used to magnetically fix the piston rod for magnetic positioning, ensuring that the tool is more stable during use; the slider is manually pushed to move forward in the sliding groove, and the flexible shaft transmits the driving force to the sliding ruler. The sliding ruler drives the vernier to move forward. When the vernier abuts against the front end of the piston, it remains stationary. Continuing to push the slider drives the sliding ruler to move forward. The sliding ruler abuts against the front end of the cylinder and remains stationary; using the principle of relative motion to generate distance difference, that is, the vernier moves relative to the sliding ruler. The difference between the vernier and the sliding ruler when they stop abutting the front end of the piston and the front end of the cylinder is the piston protrusion amount;

[0021] Since the vernier is initially located at the origin of the scale, when both the vernier and the sliding scale are stopped, the scale value corresponding to the vernier is the piston protrusion amount; thus, the length of the piston protrusion at the front end of the reciprocating machine can be accurately measured.

[0022] 2. The magnetic collar includes a housing and an electromagnet. Based on the characteristic that the electromagnet generates electromagnetic waves when energized, the magnetic collar can be firmly attracted to the side wall of the piston rod when the tool is measuring. When the tool is measuring, the magnetic collar is de-energized and the magnetic force disappears, making it easy to remove the tool from the reciprocating machine.

[0023] 3. After long-term use, the vernier may become loose due to wear. The tightness of the limit sleeve and the slide can be readjusted by screws to ensure the accuracy of the measurement data. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the front end of the reciprocating machine in the background art of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of the detection tool according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the detection tool of this utility model assembled on the re-entry machine according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the magnetic collar according to an embodiment of the present invention;

[0028] Figure 5 This is a left view of the magnetic collar according to an embodiment of the present invention;

[0029] Figure 6 This is a top view of the magnetic collar according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the sliding ruler according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram showing the connection relationship between the sliding ruler and the vernier in an embodiment of this utility model;

[0032] Figure 9 This is a cross-sectional view of the mounting cylinder structure according to an embodiment of the present utility model;

[0033] Figure 10 This is a cross-sectional view of the handle structure according to an embodiment of the present utility model.

[0034] Reference numerals: 1. Cylinder; 2. Piston; 3. Piston rod; 4. Grip mechanism; 41. Handle; 42. Mounting cylinder; 43. Sliding groove; 5. Magnetic collar; 51. Housing; 52. Electromagnet; 53. Sliding groove; 6. Sliding ruler; 61. Sliding ruler; 62. First baffle; 63. Strip hole; 7. Transmission assembly; 71. Slider; 72. Flexible shaft; 73. Flexible hose; 8. Vernier; 81. Sliding rod; 82. Second baffle; 83. Limiting sleeve; 84. Screw; 411. Outer shell; 422. PCB board; 423. Battery module; 424. Power button; 9. Battery cover; 29. ​​Wire; 30. Outlet hole; 521. Iron core; 522. Conductive winding. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0036] Please see Figures 1 to 10 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0037] Please see Figures 1 to 10This utility model provides a tool for detecting the protrusion of a piston in a reciprocating machine, including a grip mechanism 4, a magnetic collar 5, a sliding ruler 6, and a vernier 8; the magnetic collar 5 is flexibly connected to the grip mechanism 4 and is used to magnetically fix it to the piston rod 3; the sliding ruler 6 is slidably connected to the magnetic collar 5, and the grip mechanism 4 is provided with a transmission component 7 that is pulsatorically connected to the sliding ruler 6; the sliding ruler 6 is provided with scale lines; the vernier 8 is slidably connected to the sliding ruler 6; in the initial state, one end of the vernier 8 corresponds to the zero mark of the scale line on the sliding ruler 6;

[0038] The magnetic collar 5 includes a housing 51 and an electromagnet 52. In this embodiment, the housing 51 can be made of iron. One side wall of the housing 51 is an arc-shaped structure that cooperates with the piston rod 3. A groove 53 is provided on the side wall of the housing 51 opposite to the arc-shaped structure. The groove 53 extends along the length of the housing 51. The electromagnet 52 is fixedly installed inside the housing 51. The electromagnet 52 includes an iron core 521 and a conductive winding 522 with matching power wound around the outside of the iron core 521. One end of the iron core 521 is in contact with the arc-shaped structure.

[0039] Please see Figures 1 to 10 In this embodiment, the sliding ruler 6 and the vernier 8 can be made of non-magnetic materials such as stainless steel or aluminum alloy, so that the sliding ruler 6 and the vernier 8 are not affected when the magnetic collar 5 is energized; the sliding ruler 6 includes a sliding ruler 61 and a first baffle 62. The sliding ruler 61 is slidably connected in the sliding groove 53. The first baffle 62 is integrally formed with the sliding ruler 61 and is located on one side of the housing 51. In this embodiment, the sliding ruler 61 and the first baffle 62 are combined to form a T-shaped structure; wherein the width of the first baffle 62 is greater than the groove width of the sliding groove 53; a strip hole 63 is opened in the middle of the sliding ruler 61, and the strip hole 63 extends along the length direction of the sliding ruler 61, wherein the scale line is set on the sliding ruler 61 located below the strip hole 63;

[0040] The vernier 8 includes a slide rod 81, a second baffle 82, a limiting sleeve 83, and a screw 84. The slide rod 81 is a square rod located inside the strip hole 63. The second baffle 82 is integrally formed on one end of the slide rod 81 and located on one side of the housing 51. The second baffle 82 and the slide rod 81 are combined to form a Z-shaped structure. The second baffle 82 abuts against one side of the sliding ruler 61. The limiting sleeve 83 is sleeved on the other end of the slide rod 81 and abuts against the other side of the sliding ruler 61. The upper end face of the limiting sleeve 83 has a countersunk threaded hole. The screw 84 is threaded into the countersunk threaded hole and connected to the limiting sleeve 83. The bottom of the screw 84 abuts against the slide rod 81, thereby fixing the limiting sleeve 83 and the slide rod 81 together. After long-term use, the vernier 8 may loosen due to wear. The tightness of the limiting sleeve 83 and the sliding ruler 61 can be readjusted by removing the screw 84. In this embodiment, the screw 84 can also be made of aluminum alloy.

[0041] In the initial state, the front end of the limiting sleeve 83 is at the zero mark position on the corresponding scale line.

[0042] Please see Figures 1 to 10 The grip mechanism 4 includes a handle 41 and a mounting cylinder 42 fixed to the handle 41. A sliding groove 43 is axially provided on the side wall of the mounting cylinder 42. The handle 41 includes a housing 411 fixedly connected to the mounting cylinder 42, a PCB board 422 bolted inside the housing 411, and a battery module 423 installed inside the housing 411 and electrically connected to the PCB board 422. In this embodiment, a battery cover 9 is threaded to the tail of the housing 411. The battery module 423 can be replaced by removing the battery cover 9. A power button 424 electrically connected to the PCB board 422 is installed on the mounting cylinder 42. The power button 424 is used to control the energization and de-energization of the electromagnet 52. In this embodiment, the power button 424 is a light indicator switch. A wire outlet hole 30 is provided on the cylinder wall of the mounting cylinder 42 near the handle 41. The wire 29 connected to the power button 424 enters the handle 41 through the wire outlet hole 30 and is electrically connected to the PCB board 422.

[0043] The transmission assembly 7 includes a slider 71, a flexible shaft 72, and a hose 73. The slider 71 is slidably connected in the sliding groove 43, with the upper end of the slider 71 extending above the sliding groove 43 and the lower end of the slider 71 extending toward the axis of the mounting cylinder 42. One end of the flexible shaft 72 is bolted to the slider 71, and the other end of the flexible shaft 72 extends out of the mounting cylinder 42 and is fixedly connected to the tail of the sliding ruler 61. In this embodiment, the flexible shaft 72 can be a steel wire rope. One end of the hose 73 is fixedly installed on the side wall of the mounting cylinder 42, and the other end of the hose 73 is fixedly connected to one side of the housing 51. In this embodiment, the hose 73 can be a spring hose 73. The hose 73 sleeves the flexible shaft 72 inside, and the hose 73 is coaxially arranged with the mounting cylinder 42.

[0044] In this embodiment, the ends of the two wires 29 on the conductive winding 522 pass through the housing 51, the flexible tube 73, and the mounting tube 42 in sequence, enter the handle 41, and are electrically connected to the PCB board 422.

[0045] Brief description of usage: Before use, considering the spatial characteristics of the front end of a certain type of artillery recoil mechanism, unfold the retractable tool into a shape that requires multiple bends for measurement. Then, bring the magnetic collar 5 close to the piston rod 3 and turn on the power button 424 on the handle 41. The magnetic collar 5 is energized and generates magnetism, adhering to the side wall of the piston rod 3, ensuring the tool stays in place. Then, manually push the slider 71 forward within the sliding groove 43. The flexible shaft 72 transmits the driving force to the sliding ruler 6, which in turn moves the vernier 8 forward. When the first... After the second baffle 82 abuts against the front end of the piston 2 and remains stationary, the slider 71 continues to be pushed to drive the sliding ruler 6 forward. After the first baffle 62 abuts against the front end of the cylinder 1 and remains stationary, the slider 71 is stopped. When both the vernier 8 and the sliding ruler 6 are stopped, the scale value corresponding to the front end face of the limiting sleeve 83 is the piston protrusion amount. After the measurement is completed, the electromagnetic switch is turned off, the magnetic collar 5 loses its magnetism, and the tool can be removed. The mechanical scale value can be read from the sliding ruler 6 at the front end of the magnetic collar 5.

[0046] In summary, this invention solves the problems of inaccurate data and difficulty in comparison caused by the lack of tools to measure the protrusion of the piston at the front end of the reciprocating machine, which can only be estimated by visual inspection. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0047] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A recoil piston protrusion detection tool characterized by, Include: Grip mechanism (4); Magnetic collar (5), the magnetic collar (5) is flexibly connected with the grip mechanism (4), and the magnetic collar (5) is used for being fixed on the piston rod (3) by magnetic attraction; Slide ruler (6), the slide ruler (6) is slidingly connected on the magnetic collar (5), and the grip mechanism (4) is provided with a transmission assembly (7) in transmission connection with the slide ruler (6); The slide ruler (6) is provided with a scale line; Vernier (8), the vernier (8) is slidingly connected on the slide ruler (6); In the initial state, one end of the vernier (8) corresponds to the zero scale of the scale line on the slide ruler (6); The magnetic collar (5) includes a shell (51) and an electromagnet (52) fixed in the shell (51); One side wall of the shell (51) is an arc-shaped structure matched with the piston rod (3), and a sliding groove (53) is formed in the side wall of the shell (51) opposite to the arc-shaped structure; The grip mechanism (4) includes a handle (41) and a mounting cylinder (42) fixed on the handle (41), and the mounting cylinder (42) is provided with a sliding groove (43); The transmission assembly (7) includes a sliding block (71) slidingly connected with the sliding groove (43), a flexible shaft (72) fixedly connected at one end with the sliding block (71) and fixedly connected at the other end with the slide ruler (6), and a flexible tube (73) fixedly connected at one end with the mounting cylinder (42) and fixedly connected at the other end with the magnetic collar (5), wherein the flexible tube (73) is sleeved on the flexible shaft (72).

2. A complex piston protrusion detection tool according to claim 1, wherein, The slide ruler (6) includes a slide ruler (61) slidingly connected with the sliding groove (53) and a first baffle (62) integrally formed with the slide ruler (61) and located on one side of the shell (51); The slide ruler (61) is provided with a strip-shaped hole (63) in the middle.

3. A complex piston protrusion detection tool according to claim 2, wherein, The scale line is arranged on the slide ruler (61).

4. A complex piston protrusion detection tool according to claim 2, wherein The first baffle (62) has a width greater than the groove width of the sliding groove (53).

5. A complex piston protrusion detection tool according to claim 2, wherein, The vernier (8) includes a slide rod (81) located in the strip-shaped hole (63), a second baffle (82) integrally formed at one end of the slide rod (81) and located on one side of the shell (51), a limiting sleeve (83) sleeved on the other end of the slide rod (81), and a screw (84) threadedly connected on the limiting sleeve (83) and used for fixing the limiting sleeve (83) and the slide rod (81) together.

6. A complex piston protrusion detection tool according to claim 1, wherein, The handle (41) includes an outer shell (411) fixedly connected with the mounting cylinder (42), a PCB board (422) fixed in the outer shell (411), and a battery module (423) mounted in the outer shell (411) and electrically connected with the PCB board (422); The electromagnet (52) is electrically connected with the PCB board (422).

7. A complex piston protrusion detection tool according to claim 6, wherein, The mounting cylinder (42) is provided with a power key (424) electrically connected with the PCB board (422).

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