Large-scale universal ammunition lifting appliance

Abstract

The embodiment of the utility model relates to a general lifting appliance for large ammunition, and belongs to the technical field of ammunition lifting appliances. The general lifting appliance for the large ammunition comprises a main beam, the two ends of the main beam are slidably connected with lifting lug assemblies used for lifting the ammunition, a main transmission rod is installed in the main beam, the main transmission rod is connected with the lifting lug assemblies, and the two lifting lug assemblies can be driven to move oppositely or relatively along the main transmission rod; the middle of the main transmission rod is sleeved with an auxiliary transmission rod, a balancing weight is installed on the auxiliary transmission rod, and a driving mechanism is arranged on the main transmission rod. The main transmission rod can drive the two lifting lug assemblies to move into the driving mechanism. According to the lifting appliance provided by the embodiment of the invention, the distance between the two lifting lug assemblies can be adjusted according to different types of ammunition so as to adapt to the sizes of the ammunition, the operation that the lifting appliance needs to be replaced when large ammunition is received and sent in an ammunition warehouse is reduced, and the efficiency of simultaneous receiving and sending operation of multiple ammunition under the emergency condition is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of ammunition slings, and in particular to a universal sling for large ammunition. Background Art

[0002] In recent years, large rockets and missiles have been continuously equipped to the army. These ammunitions generally have the characteristics of large structure size, heavy weight and high value. They need to be assisted by lifting equipment during the reception, delivery, loading and unloading and other service operations. At present, large ammunition lifting equipment has the problem of insufficient versatility. One lifting equipment can only be used for one type of ammunition, and some ammunition is not suitable for special lifting equipment, which affects the efficiency of receiving and sending multiple types of ammunition and increases the complexity of daily service.

[0003] The main large-scale ammunition currently equipped by the army is divided into three types according to the size of the projectile. As the projectile size increases, the lifting span increases. Analysis of the three types of ammunition shows that the lifting point center and its center of mass coincide with each other for the two types of ammunition with larger projectiles, that is, when lifting these two types of ammunition, the ammunition lifting device does not need to be counterweighted; while for the types of ammunition with smaller projectiles, the lifting point center and the center of mass do not coincide, and the center of gravity is located at the lifting point center towards the warhead.

[0004] In view of the above analysis, the development of universal ammunition slings has the following two difficulties:

[0005] First, the lifting size of the universal sling must be able to adapt to multiple types of bombs;

[0006] Second, the lifting center and center of gravity of some types of ammunition currently do not coincide, and the lifting equipment needs to be counterweighted. Utility Model Content

[0007] In view of this, an embodiment of the present application provides a universal sling for large ammunition to solve the technical problems raised by the above-mentioned background technology.

[0008] The embodiment of the present application provides a large ammunition universal hoist, comprising a main beam, both ends of the main beam are slidably connected with a lifting lug assembly for lifting ammunition, a main transmission rod is installed inside the main beam, and the main transmission rod is connected to the lifting lug assembly, and can drive two lifting lug assemblies to move toward or relative to each other along the main transmission rod;

[0009] A secondary transmission rod is sleeved on the middle part of the main transmission rod, a counterweight is installed on the secondary transmission rod, and a driving mechanism is provided on the main transmission rod and on both sides of the secondary transmission rod; the main transmission rod can drive the two lifting ear assemblies to move into the driving mechanism, at which time the driving mechanism contacts the secondary transmission rod so that the secondary transmission rod rotates with the main transmission rod, and drives the counterweight to move horizontally to ensure balance.

[0010] The sling of the embodiment of the present application is provided with a lifting ear assembly on the main beam, and the main transmission rod inside the main beam can drive the lifting ear assembly to move toward or relative to each other along the main transmission rod, so that the distance between the two lifting ear assemblies can be adjusted according to the type of ammunition to adapt to the size of the ammunition, reduce the need to replace the sling when sending and receiving large ammunition in the ammunition warehouse, and improve the efficiency of sending and receiving multiple ammunition at the same time in an emergency; at the same time, the present application is also provided with a counterweight block, which can drive the auxiliary transmission rod to rotate through the active transmission rod, thereby driving the adjustment of the counterweight block, so that the lifting center and the center of gravity of some types of ammunition coincide. While adapting to multiple types of ammunition, the sling is easy to operate, and its counterweight adjustment is automatic, without the need for personnel to look up the table, and the operating personnel can go to work without professional training, thereby reducing the types of operating tools in the ammunition warehouse and alleviating the work pressure of tool service and maintenance.

[0011] In some embodiments that may include the above-mentioned embodiments, the driving mechanism includes a transmission assembly, a bracket, a bearing and a claw plate 2, wherein the upper and lower sides of the transmission assembly are connected to the inner wall of the main beam, and the transmission assembly is clamped with the bracket at the middle position on the side facing the auxiliary transmission rod, and the interior of the bracket is connected to the claw plate 2 for cooperating with the auxiliary transmission rod through a bearing.

[0012] In some embodiments that may include the above-mentioned embodiments, an inner hole for passing through the main transmission rod is opened inside the auxiliary transmission rod, an external thread that cooperates with the thread of the counterweight block is arranged on the outer side of the auxiliary transmission rod, and claw plates 1 that are engaged with claw plates 2 are arranged at both ends of the auxiliary transmission rod.

[0013] In some embodiments that may include the above-mentioned embodiments, the transmission assembly includes two top covers, a casing, a vertical slider and a horizontal slider that are symmetrically arranged up and down with the main transmission rod as the central axis, wherein the two top covers are connected to the inner wall of the main beam, and casings are arranged on the side of the two top covers facing the main transmission rod, and the vertical slider is slidably connected to the inside of the casing in the vertical direction, and the horizontal slider is slidably connected to the inside of the casing in the horizontal direction, the contact surface between the vertical slider and the horizontal slider is an inclined surface, and one end of the horizontal slider is clamped with a bracket.

[0014] In some embodiments that may include the above-mentioned embodiments, an inclined portion 1 is provided at the end of the vertical slider that contacts the ear assembly, an inclined portion 2 is provided at the end of the vertical slider that contacts the horizontal slider, a guide rail 1 slidably connected to the casing is provided on the front and rear sides of the vertical slider, and a spring 1 in contact with the casing is provided at the bottom of the vertical slider.

[0015] In some embodiments that may include the above-mentioned embodiments, an inclined portion three is provided at one end of the horizontal slider that contacts the vertical slider, wherein guide rails two that are slidably connected to the casing are provided on the front and rear sides of the horizontal slider, and a clamping block that is clamped with the bracket is provided on the side of the horizontal slider facing the bracket, wherein a spring two connected to the casing is provided at the bottom of the clamping block.

[0016] In some embodiments that may include the above-mentioned embodiments, the bracket is an overall cylindrical structure, and a slot for engaging with the horizontal sliding block is provided on a side thereof facing the transmission assembly.

[0017] In some embodiments that may include the above-mentioned embodiments, the main beam is in the shape of an internally hollow frame, a lifting ring structure is provided on the top, indicator arrows are set in the middle position of the front and rear sides, guide rail grooves that slide with the lifting ear assemblies are provided on both sides of the indicator arrows, and indicator scales are also provided on the guide rail grooves.

[0018] In some embodiments that may include the above embodiments, the lifting lug assembly includes a hanger, a slider and a longitudinal beam, wherein the hanger is slidably connected to the outside of the main beam, and a slider is installed on the inside of the hanger, wherein the slider is placed inside the main beam, and an internal threaded hole threadedly connected to the main transmission rod is opened in the middle of the slider;

[0019] A longitudinal beam is installed at the bottom of the hanger and below the main beam, wherein a plurality of lifting rings are arranged on the longitudinal beam.

[0020] In some embodiments that may include the above-mentioned embodiments, the main transmission rod includes an externally threaded rod, a connecting shaft and a spline rod, wherein both ends of the connecting shaft are provided with externally threaded rods threadedly connected to the lifting ear assembly, and both ends of the connecting shaft are also provided with spline rods connected to the auxiliary transmission rod.

[0021] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0022] 1. The present application arranges a lifting lug assembly on the main beam, and the main transmission rod inside the main beam can drive the lifting lug assembly to move toward or relative to each other along the main transmission rod, so that the distance between the two lifting lug assemblies can be adjusted according to the type of ammunition to adapt to the size of ammunition, reduce the need to replace the lifting equipment when receiving and sending large ammunition in the ammunition warehouse, and improve the efficiency of receiving and sending multiple ammunition at the same time in an emergency;

[0023] 2. The present application is also provided with a counterweight block, which can drive the auxiliary transmission rod to rotate through the active transmission rod, thereby driving the adjustment of the counterweight block, so that the lifting center and the center of gravity of some types of ammunition coincide. While adapting to multiple types of ammunition, the sling is easy to operate. The counterweight adjustment is automatic, and there is no need for personnel to look up the table. Operators can go to work without professional training, which reduces the types of operating tools in the ammunition warehouse and alleviates the work pressure of tool service maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of the structure of a universal sling for large ammunition in an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the structure inside the universal sling for large ammunition in an embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the structure of the main beam in the embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the structure of the lifting ear assembly in the embodiment of the present application;

[0029] Figure 5 In the embodiment of this application Figure 4 A front view of

[0030] Figure 6 This is a schematic diagram of the structure of the main transmission rod in the embodiment of the present application;

[0031] Figure 7 This is a schematic diagram of the structure of the secondary transmission rod in the embodiment of the present application;

[0032] Figure 8 This is a schematic diagram of the structure of the transmission assembly and the bracket in the embodiment of the present application;

[0033] Fig. 9 In the embodiment of this application Figure 8 Explosion diagram of

[0034] Fig.10 This is a schematic diagram of the structure of the bracket and the claw plate 2 in the embodiment of the present application;

[0035] Fig.11 This is a schematic diagram of the embodiment of the present application when the lifting ear assembly is located at the outermost side;

[0036] Fig.12 This is a schematic diagram of the lifting ear assembly when it moves to the inner side in the embodiment of the present application.

[0037] Description of reference numerals:

[0038] 1. Main beam;

[0039] 101. lifting ring structure; 102. mounting opening; 103. guide rail; 104. indicator scale; 105. guide rail groove; 106. indicator arrow;

[0040] 2. Lifting lug assembly;

[0041] 201, hanger; 202, slider; 203, longitudinal beam;

[0042] 2021, boss; 2022, internal threaded hole; 2031, connecting rod; 2032, lifting ring;

[0043] 3. End cap;

[0044] 4. Hand crank;

[0045] 5. Counterweight;

[0046] 6. Main transmission rod;

[0047] 601, external threaded rod; 602, connecting shaft; 603, spline rod;

[0048] 7. Auxiliary transmission rod;

[0049] 701, claw plate 1; 702, inner hole; 703, external thread;

[0050] 8. Transmission components;

[0051] 801, top cover; 802, housing; 803, position-limiting end cover; 804, vertical slider; 805, horizontal slider;

[0052] 8021, guide groove 2; 8022, guide groove 1; 8041, guide rail 1; 8042, inclined portion 1; 8043, inclined portion 2; 8044, spring 1; 8051, block; 8052, guide rail 2; 8053, inclined portion 3; 8054, spring 2;

[0053] 9. Bracket;

[0054] 901, card slot;

[0055] 10. Bearings;

[0056] 11. Claw plate 2;

[0057] 1101. Spline groove. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0059] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0060] Secondly, it should be noted that in the description of the present application, terms such as "up", "down", "left", "right", "front", "back", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0061] In order to solve the above technical problems, refer to Figure 1 and Figure 2 The embodiment of the present application provides a general hoist for large ammunition, including a main beam 1, a lifting ear assembly 2, an end cover 3, a hand wheel 4, a counterweight 5, a main transmission rod 6, a secondary transmission rod 7, a transmission assembly 8, a bracket 9, a bearing 10 and a claw plate 11, wherein the main beam 1 is arranged horizontally, and end covers 3 are arranged at both ends of the main beam 1 to fix the main beam 1, and the lifting ear assembly 2 is also slidably connected at the positions near the two ends of the main beam 1, and the hand wheel 4 is installed on the end covers 3 on both sides; wherein the upper and lower sides of the transmission assembly 8 are connected to the inner wall of the main beam 1, and the transmission assembly 8 is clamped with a bracket 9 at the middle position on one side facing the secondary transmission rod 7, and the interior of the bracket 9 is connected to a claw plate 11 for cooperating with the secondary transmission rod 7 through a bearing 10.

[0062] Specifically, refer to Figure 3The main beam 1 is a rectangular frame structure with a hollow interior, and a lifting ring structure 101 is provided on the top thereof. The lifting ring structure 101 can be lifted by a crane or the like later, so as to lift the entire lifting device; an indicating arrow 106 is provided in the middle position on the front and rear sides of the main beam 1 to indicate the direction of the warhead of the hoisted ammunition; guide grooves 105 that slide with the lifting ear assembly 2 are provided on both sides of the indicating arrow 106 to limit the position of the lifting ear assembly 2; indicating scales 104 are also provided on the guide grooves 105 to indicate what kind of ammunition is suitable for the current position of the lifting ear assembly 2; guide rails 103 are also provided on the front and rear sides of the top of the main beam 1, and the guide rails 103 are slidably connected with the lifting ear assembly 2 to limit the position of the lifting ear assembly 2 when it slides; two installation openings 102 are opened at the top of the main beam 1 and between the two guide rails 103, and the installation openings 102 can be detachably connected to the transmission assembly 8 inside the main beam 1 by bolts or pins.

[0063] In a specific embodiment, referring to Figure 4 and Figure 5 The lifting ear assembly 2 includes a hanger 201, a slider 202 and a longitudinal beam 203, wherein the hanger 201 is an inverted "U"-shaped structure, the hanger 201 is slidably connected to the outside of the main beam 1, and the top of the hanger 201 is slidably connected to the two guide rails 103 on the main beam 1; a slider 202 is installed on the inner side of the hanger 201, and the two ends of the slider 202 are connected to the main beam 1 through a boss 2021, and the boss 2021 is slidably connected to the guide rail groove 105 on the main beam 1, and the guide rail groove 105 is horizontally arranged, so the movement of the lifting ear assembly 2 is also horizontal movement, and the overall moving length of the lifting ear assembly 2 is the length of the guide rail groove 105; wherein the slider 202 is placed inside the main beam 1, and an internal threaded hole 2022 threadedly connected to the main transmission rod 6 is opened in the middle of the slider 202, that is, the rotation of the main transmission rod 6 can drive the slider 202 to move along the direction of the main transmission rod 6, and the main transmission rod 6 is horizontally arranged inside the main beam 1.

[0064] Specifically, a longitudinal beam 203 is installed at the bottom of the hanger 201 and below the main beam 1, wherein a connecting rod 2031 is provided above the longitudinal beam 203, and the connecting rod 2031 is connected to the bottom of the hanger 201 through a screw or a pin shaft, and a number of lifting rings 2032 are equidistantly provided on the longitudinal beam 203, and the number of lifting rings 2032 is determined according to actual needs and is not limited in this application.

[0065] Specifically, refer to Figure 1 The end covers 3 are installed at both ends of the main beam 1 to close the two ends of the main beam 1, and the connection between the two can be detachably connected by bolts or pins.

[0066] Specifically, refer to Figure 1There are two hand-cranked wheels 4, which are respectively on the two end covers 3, and the other end of the hand-cranked wheel 4 is connected to the main transmission rod 6 inside the main beam 1.

[0067] Specifically, refer to Figure 2 and Figure 6 The main transmission rod 6 includes an externally threaded rod 601, a connecting shaft 602 and a spline rod 603 which are integrally arranged, wherein both ends of the connecting shaft 602 are provided with externally threaded rods 601 which are threadedly connected to the internally threaded holes 2022 in the lifting ear assembly 2, so that the rotation of the externally threaded rod 601 can drive the lifting ear assembly 2 to move along its horizontal direction; the two ends of the connecting shaft 602 are also provided with spline rods 603 which are connected to the auxiliary transmission rod 7. If the auxiliary transmission rod 7 is connected to the spline rod 603, the rotation of the externally threaded rod 601 can cause the auxiliary transmission rod 7 to rotate simultaneously.

[0068] Specifically, refer to Figure 7 An inner hole 702 is provided inside the auxiliary transmission rod 7 for passing through the main transmission rod 6, a counterweight block 5 is arranged on the outer side of the auxiliary transmission rod 7, and an external thread 703 is provided on the outer wall which cooperates with the thread of the counterweight block 5. Therefore, when the auxiliary transmission rod 7 rotates, the counterweight block 5 can be driven to move along the horizontal direction of the auxiliary transmission rod 7, and claw plates 701 are provided at both ends of the auxiliary transmission rod 7 for engaging with claw plates 11. It should be noted that the two spline rods 603 are located on the outer side of the auxiliary transmission rod 7, that is, the distance between the two spline rods 603 is slightly larger than the length of the auxiliary transmission rod 7.

[0069] Specifically, refer to Figure 8 and Fig. 9 The transmission assembly 8 includes two top covers 801, a housing 802, a vertical slider 804 and a horizontal slider 805 which are symmetrically arranged with the main transmission rod 6 as the central axis;

[0070] Specifically, the two top covers 801 are connected to the inner wall of the main beam 1, and a casing 802 is provided on the side of the two top covers 801 facing the main transmission rod 6, and the inside of the casing 802 is slidably connected to a vertical slider 804 in the vertical direction, and the inside of the casing 802 is slidably connected to a horizontal slider 805 in the horizontal direction, and the contact surface between the vertical slider 804 and the horizontal slider 805 is an inclined surface, one end of the horizontal slider 805 is clamped with the bracket 9, and the end of the casing 802 facing the bracket 9 is detachably installed with a limiting end cover 803 by bolts, and the limiting end cover 803 is arranged to be detachably installed, which can facilitate the disassembly of the internal horizontal slider 805 and the vertical slider 804.

[0071] In a specific embodiment, the housing 802 is a rectangular frame structure, and a guide groove 8022 is provided in the vertical direction to be slidably connected to the vertical slider 804. A guide groove 8021 is provided in the horizontal direction on one side of the guide groove 8022, wherein the guide groove 8021 is slidably connected to the horizontal slider 805.

[0072] In a specific embodiment, an inclined portion 8042 is provided at one end of the vertical slider 804 that contacts the lifting ear assembly 2, so when the lifting ear assembly 2 moves toward the transmission assembly 8, the inclined portion here will not hinder the lifting ear assembly 2; an inclined portion 8043 is provided at one end of the vertical slider 804 that contacts the horizontal slider 805, and a guide rail 8041 slidably connected to the guide groove 8022 is provided on the front and rear sides of the vertical slider 804, and a spring 8044 in contact with the housing 802 is provided at the bottom of the vertical slider 804; when the lifting ear assembly 2 moves toward the transmission assembly 8 driven by the main transmission rod 6, the slider 202 in the lifting ear assembly 2 can squeeze the upper and lower vertical sliders 804, so that the two vertical sliders 804 squeeze the spring 8044 into the housing 802, and the lifting ear assembly 2 can move between the two vertical sliders 804.

[0073] In a specific embodiment, an inclined portion 3 8053 is provided at one end of the horizontal slider 805 that contacts the inclined portion 2 8043, wherein guide rails 2 8052 slidably connected to the guide groove 2 8021 are provided on the front and rear sides of the horizontal slider 805, and a clamping block 8051 that is clamped with the bracket 9 is provided on the side of the horizontal slider 805 facing the bracket 9, wherein a spring 2 8054 connected with the housing 802 is provided at the bottom of the clamping block 8051; when the vertical slider 804 squeezes the spring 1 8044 into the housing 802, the inclined surface of the vertical slider 804 in contact with the horizontal slider 805 can generate a horizontal movement force on the horizontal slider 805, thereby driving the horizontal slider 805 to move toward the bracket 9, thereby driving the bracket 9 to move horizontally, and further enabling the bracket 9 to drive the claw plate 2 11 to clamp the claw plate 1 701.

[0074] In a specific embodiment, referring to Figure 8 , Fig. 9 and Fig.10The bracket 9 is a cylindrical structure as a whole, and a slot 901 is provided on the side facing the horizontal slider 805, which is engaged with the block 8051, and the block 8051 can be engaged with the corresponding slot 901. A bearing 10 is installed on the side of the bracket 9 facing the auxiliary transmission rod 7, and a claw plate 2 11 is installed on the bearing 10. Therefore, when the claw plate 2 11 is connected with the claw plate 1 701 on the auxiliary transmission rod 7, the claw plate 2 11 rotates, but the bracket 9 does not move, because the connection between the two is connected through the bearing 10. Due to the existence of the bearing, the bracket 9 does not rotate, and the claw plate 2 11 can follow the main transmission rod 6 to rotate; at the same time, the bracket 9 can drive the claw plate 2 11 to move horizontally synchronously;

[0075] In a specific embodiment, a spline groove 1101 corresponding to the spline rod 603 is also opened inside the claw plate 11, so that the claw plate 11 can be moved to the outside of the spline rod 603, so that the spline groove 1101 cooperates with the spline rod 603, and at this time, the tooth surface of the claw plate 11 is engaged with the claw plate 1 701. Therefore, when the main transmission rod 6 rotates, it can drive the rotation of the auxiliary transmission rod 7 with the cooperation of the spline and the two claw plates.

[0076] The specific operating principles of this application are as follows:

[0077] When carrying out the ammunition lifting operation, select the hand wheel at any end, rotate the hand wheel to drive the main transmission rod 6 to rotate, and then drive the lifting ear components 2 on both sides to move, so as to adjust the lifting span, move the lifting ear components 2 to the specified scale line, and then lift the ammunition corresponding to the scale line. Since the claw plate 2 11 is not engaged with the auxiliary transmission rod 7 at this time, the auxiliary transmission rod 7 does not move, the counterweight block 5 remains fixed, and the center of the lifting device is still located at its geometric center, coinciding with the center of the ammunition and the lifting center, thereby ensuring that the entire lifting system is in a balanced state (such as Fig.11 shown).

[0078] The hand crank is continuously shaken. When the lifting span of the lifting ear assembly 2 is less than a certain value, the slider 202 contacts the vertical slider 804 and lifts it up. The vertical slider 804 pushes the horizontal slider 805 to move in parallel, thereby driving the bracket 9, the bearing 10, and the claw plate 2 11 to move synchronously, so that the claw plate 2 11 is engaged with the claw plate 1 701 on the auxiliary transmission rod 7. At this time, the rotational movement of the hand crank 4 will be transmitted to the auxiliary transmission rod 7 along the path of the main transmission rod 6, the claw plate 2 11, and the auxiliary transmission rod 7. The auxiliary transmission rod 7 then drives the counterweight block 5 to move horizontally, thereby offsetting the system imbalance caused by the eccentricity of the center of mass of the ammunition (such as Fig.12 shown).

[0079] When the hand wheel moves in the opposite direction, the counterweight 5 gradually returns to the geometric center position of the sling. At this time, the contact between the slider 202 and the vertical slider 804 will be separated. Under the action of the spring, the horizontal slider 805 and the vertical slider 804 will be reset respectively. At the same time, the reset of the horizontal slider 805 will drive the bracket 9, the bearing 10, and the claw plate 11. The engagement between the claw plate 2 11 and the claw plate 1 701 will be separated, and the motion transmission between the auxiliary transmission rod 7 and the main transmission rod 6 will be cut off.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A general-purpose sling for large ammunition, comprising a main beam (1), characterized in that: The two ends of the main beam (1) are slidably connected with lifting lug assemblies (2) for lifting ammunition, a main transmission rod (6) is installed inside the main beam (1), and the main transmission rod (6) is connected to the lifting lug assemblies (2) and can drive the two lifting lug assemblies (2) to move toward or relative to each other along the main transmission rod (6); The middle part of the main transmission rod (6) is sleeved with an auxiliary transmission rod (7), a counterweight (5) is installed on the auxiliary transmission rod (7), and a driving mechanism is provided on the main transmission rod (6) and on both sides of the auxiliary transmission rod (7); the main transmission rod (6) can drive the two lifting ear assemblies (2) to move into the driving mechanism, and at this time the driving mechanism contacts the auxiliary transmission rod (7) so that the auxiliary transmission rod (7) rotates with the main transmission rod (6), and drives the counterweight (5) to move horizontally to ensure balance.

2. The universal sling for large ammunition according to claim 1, characterized in that: The driving mechanism comprises a transmission assembly (8), a bracket (9), a bearing (10) and a claw plate (11), wherein the upper and lower sides of the transmission assembly (8) are connected to the inner wall of the main beam (1), and the transmission assembly (8) is clamped with the bracket (9) at a middle position on one side facing the auxiliary transmission rod (7), and the interior of the bracket (9) is connected to the claw plate (11) for cooperating with the auxiliary transmission rod (7) through the bearing (10).

3. The universal sling for large ammunition according to claim 2, characterized in that: The auxiliary transmission rod (7) is provided with an inner hole (702) for penetrating the main transmission rod (6), the outer side of the auxiliary transmission rod (7) is provided with an external thread (703) that matches with the thread of the counterweight (5), and the two ends of the auxiliary transmission rod (7) are provided with a claw plate 1 (701) that is engaged with a claw plate 2 (11).

4. The universal sling for large ammunition according to claim 2, characterized in that: The transmission assembly (8) comprises two top covers (801) symmetrically arranged up and down with the main transmission rod (6) as the central axis, a casing (802), a vertical slider (804) and a horizontal slider (805), wherein the two top covers (801) are connected to the inner wall of the main beam (1), the casing (802) is arranged on one side of the two top covers (801) facing the main transmission rod (6), and the inside of the casing (802) is slidably connected to the vertical slider (804), and the inside of the casing (802) is slidably connected to the horizontal slider (805) in the horizontal direction, the contact surface between the vertical slider (804) and the horizontal slider (805) is an inclined surface, and one end of the horizontal slider (805) is clamped to the bracket (9).

5. The universal sling for large ammunition according to claim 4, characterized in that: An inclined portion 1 (8042) is provided at one end of the vertical slider (804) that contacts the lifting ear assembly (2), and an inclined portion 2 (8043) is provided at one end of the vertical slider (804) that contacts the horizontal slider (805). Guide rails 1 (8041) slidably connected to the housing (802) are provided on the front and rear sides of the vertical slider (804), and a spring 1 (8044) that contacts the housing (802) is provided at the bottom of the vertical slider (804).

6. The universal sling for large ammunition according to claim 4, characterized in that: The end of the horizontal slider (805) that contacts the vertical slider (804) is provided with a third inclined portion (8053), wherein the front and rear sides of the horizontal slider (805) are provided with second guide rails (8052) that are slidably connected to the housing (802), and the side of the horizontal slider (805) that faces the bracket (9) is provided with a clamping block (8051) that is clamped with the bracket (9), wherein the bottom of the clamping block (8051) is provided with a second spring (8054) that is connected to the housing (802).

7. The universal sling for large ammunition according to claim 4, characterized in that: The bracket (9) is an overall cylindrical structure, and a slot (901) for engaging with the horizontal slider (805) is provided on a side thereof facing the transmission assembly (8).

8. The universal sling for large ammunition according to claim 1, characterized in that: The main beam (1) is in the shape of a frame with a hollow interior, a lifting ring structure (101) is provided on the top, an indicating arrow (106) is provided at the middle position of the front and rear sides, and guide rail grooves (105) that are slidably matched with the lifting ear assembly (2) are provided on both sides of the indicating arrow (106), and indicating scales (104) are also provided on the guide rail grooves (105).

9. The universal sling for large ammunition according to claim 1, characterized in that: The lifting lug assembly (2) comprises a hanger (201), a slider (202) and a longitudinal beam (203), wherein the hanger (201) is slidably connected to the outside of the main beam (1), and the slider (202) is installed on the inside of the hanger (201), wherein the slider (202) is placed inside the main beam (1), and an internal threaded hole (2022) threadedly connected to the main transmission rod (6) is provided in the middle of the slider (202); A longitudinal beam (203) is installed at the bottom of the hanger (201) and below the main beam (1), wherein a plurality of lifting rings (2032) are provided on the longitudinal beam (203).

10. The universal sling for large ammunition according to claim 1, characterized in that: The main transmission rod (6) comprises an externally threaded rod (601), a connecting shaft (602) and a spline rod (603), wherein both ends of the connecting shaft (602) are provided with externally threaded rods (601) threadedly connected to the lifting lug assembly (2), and both ends of the connecting shaft (602) are also provided with spline rods (603) connected to the auxiliary transmission rod (7).

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