Tool for heavy ignition assembly

Abstract

The utility model discloses a tool for heavy ignition assembly. The tool comprises a tool body, a lifting lug, a bent rod and a fastening bolt. The tool body is of a disc structure, and a cross disc of the tool body is fixedly connected with the tool body through bolts. According to the utility model, the defects in the prior art can be overcome, the tool for heavy ignition assembly is provided, and the safe and efficient assembly of a heavy engine ignition device is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tooling for heavy ignition assembly belongs to solid rocket engine assembly technical field. BACKGROUND

[0002] In the assembly process of the traditional solid rocket engine, the screw hole of the pressure hole plug of the ignition device is generally used to reliably fix the supporting rod, and then the supporting rod is manually held to complete the assembly of the combustion chamber and the ignition device. For the assembly of heavy solid rocket engines, the weight of the ignition device is about 150 kg, which cannot be directly assembled manually and needs to be assisted by lifting. After lifting the ignition device by the crane, the ignition device is manually turned to the horizontal state, which is highly dependent on the strength of the personnel and has a risk of damaging the threaded hole. This operation mode may cause ignition impact or flash, and the safety and quality reliability are low. After the ignition device contacts the combustion chamber, it is difficult to adjust the radial attitude of the ignition device. During the assembly and assembly of the combustion chamber, the ignition device is difficult to be lifted horizontally after being turned over due to the large mass of the ignition device, the operator has no reliable gripping device, and there is a risk of ignition falling and impact. Moreover, it is difficult to adjust the radial attitude, which brings great risk to the final assembly process and cannot meet the high-quality assembly requirements of the ignition device. Therefore, it is urgent to design an ignition device assembly tooling to safely and efficiently complete the ignition assembly of heavy engines. SUMMARY

[0003] The technical problem of the utility model is to overcome the shortcomings of the prior art and provide a tooling for heavy ignition assembly to realize safe and efficient assembly of the ignition device of heavy engines.

[0004] The technical solution of the utility model is:

[0005] The utility model discloses a tooling for heavy ignition assembly, which comprises a cross plate, a connecting disc, a rotating shaft, a lifting lug and a bent rod.

[0006] The cross plate is fixedly connected with the flange of the ignition device.

[0007] The connecting disc is fixedly connected with the cross plate.

[0008] The rotating shaft is installed at the center of the connecting disc, and the rotating shaft and the lifting lug are connected in a hinged manner and can rotate.

[0009] The lifting lug is fixedly connected with the bent rod, and the bent rod is connected with a lifting belt.

[0010] Different cross plates can be replaced, and the position of the lifting belt can be adjusted to adapt to the lifting requirements of ignition devices of different sizes and masses.

[0011] Further, in the above tool, the cross plate comprises a disc and four connecting plates; one end of the four connecting plates is evenly distributed along the circumference of the disc, forming a cross; the end of the connecting plate away from the disc is provided with a threaded hole for connecting the flange of the ignition device.

[0012] Further, in the above tool, the disc and the four connecting plates are integrally formed.

[0013] Further, in the above tool, a circular hole is provided in the middle of the disc; a plurality of threaded holes are evenly arranged on the circumference concentric with the circular hole for connecting the connecting disc.

[0014] Further, in the above tool, the circular hole matches the rotating shaft; the rotating shaft is installed in the circular hole.

[0015] Further, in the above tool, the connecting disc is a disc structure, and a hollow boss is arranged at the center of the disc structure; the center of the hollow boss matches the outer diameter of the rotating shaft for installing the rotating shaft; the outer side of the hollow boss is sleeved with an ear.

[0016] Further, in the above tool, the ear comprises a semicircular part and a rectangular part; a through hole is arranged at the connection between the semicircular part and the rectangular part, and the through hole is sleeved on the hollow boss of the connecting disc; the rectangular part is provided with four threaded holes for connecting with the bent rod.

[0017] Further, in the above tool, the bent rod is an L-shaped structure; one side of the L-shaped structure is connected with the ear; the other side of the L-shaped structure is connected with a sling; a reinforcing rib is arranged at the right angle of the L-shaped structure.

[0018] The utility model has the beneficial effects of the prior art:

[0019] (1) The tool handheld part is improved to a cross shape, which can realize reliable gripping and ring-shaped posture adjustment; the cross plate ring-shaped adjusting mechanism is connected and fixed with the through hole of the ignition device, avoiding the quality risk of thread hole damage caused by using pressure hole thread connection tool.

[0020] (2) The utility model improves the ignition device lifting tool, so that the lifting point and the center of mass are on the same plumb line, realizing horizontal stable lifting after the ignition device is turned over, avoiding the safety quality risk of product bumping.

[0021] Due to the large mass of the ignition device and the eccentric structure, in the horizontal lifting process, the traditional way must be manually held horizontally and adjusted to the interface in the horizontal posture of the ignition device, which is highly dependent on the strength and proficiency of the operator, and a slight mistake may cause product bumping or air flashing. Therefore, the hanger position is fixed at the center of mass of the ignition device by designing a bent rod, so that the horizontal lifting of the ignition device can be easily realized. After using the tool, the lifting process is not dependent on the pressure hole thread, and can naturally maintain the horizontal state, which is convenient for in-flight posture adjustment and interface, significantly improves the stability of the ignition device lifting, reduces the labor intensity of the operator, realizes the intrinsic safety, and significantly reduces the quality risk.

[0022] (3) The utility model discloses a cross plate and hanger hinged mode, realizes the annular free rotation of the ignition device after horizontal lifting, and solves the annular adjustment problem in the interface assembly process of the ignition device.

[0023] When the combustion chamber and the ignition device are connected, the technical requirement of quadrant one-to-one correspondence needs to be met, and when the ignition device is vertically placed, the quadrant rough adjustment is carried out according to the technical requirement, so that the quadrant of the ignition device corresponds to the combustion chamber when the ignition device is horizontally lifted. During the interface process of the ignition device and the combustion chamber, the rotation of the ignition device can be realized by using the annular adjustment mechanism of the cross plate, so as to meet the process technical requirement.

[0024] (4) The utility model discloses a modular design, by replacing the cross plate suitable for the target workpiece, which can be used for horizontal lifting and posture adjustment of different workpieces.

[0025] (5) The utility model discloses a tool for heavy ignition device assembly, which ensures the assembly safety and quality, reduces the manpower, saves the cost, and improves the production efficiency of the ignition device assembly process by 76%. DRAWINGS

[0026] Figure 1 It is the complete schematic diagram of the tool of the utility model;

[0027] Figure 2 It is the cross plate schematic diagram of the utility model;

[0028] Figure 3 It is the connecting disc structure schematic diagram of the utility model;

[0029] Figure 4 It is the hanger and bolt connection structure schematic diagram of the utility model;

[0030] Figure 5 It is the bent rod structure schematic diagram of the utility model. CONCRETE IMPLEMENTING METHOD

[0031] The utility model patent will be further described in detail in combination with the drawings and the concrete implementing method.

[0032] As Figure 1 shown, the utility model discloses a tooling for heavy ignition assembly, include: cross 1, connecting disc 2, pivot 3, lug 4 and bent pole 5, wherein,

[0033] Cross 1 is fixedly connected with ignition device flange;

[0034] Connecting disc 2 is fixedly connected with cross 1;

[0035] Pivot 3 is installed in the center of connecting disc 2, and pivot 3 is connected with lug 4 in the hinged mode and can rotate;

[0036] Lug 4 is fixedly connected with bent pole 5, and bent pole 5 is connected with a sling;

[0037] By changing different cross 1 and adjusting the position of the sling, the hoisting demand of ignition device of different sizes and quality can be adapted.

[0038] Preferably, as Figure 2 shown, cross 1 includes a disc and four connecting plates; one end of the four connecting plates is evenly distributed along the circumference of the disc, forming a cross; the end of the connecting plate away from the disc is provided with a threaded hole for connecting the ignition device flange.

[0039] Preferably, the disc and the four connecting plates are integrally formed.

[0040] Preferably, a circular hole is arranged in the middle of the disc; a plurality of threaded holes are evenly arranged on the circumference concentric with the circular hole for connecting connecting disc 2.

[0041] Preferably, the circular hole is matched with the pivot 3; the pivot 3 is installed in the circular hole.

[0042] Preferably, as Figure 3 shown, connecting disc 2 is a disc structure, and a hollow boss is arranged at the center of the disc structure; the center of the hollow boss is matched with the outer diameter of the pivot 3 for installing the pivot 3; the outer side of the hollow boss is sleeved with lug 4.

[0043] Preferably, as Figure 4 shown, lug 4 includes a semicircular part and a rectangular part; a through hole is arranged at the connection of the semicircular part and the rectangular part, and the through hole is sleeved on the hollow boss of connecting disc 2; the rectangular part is provided with four threaded holes for connecting with bent pole 5.

[0044] Preferably, as Figure 5 shown, bent pole 5 is an L-shaped structure; one side end of the L-shaped structure is connected with lug 4; the other side of the L-shaped structure is connected with a sling; a reinforcing rib is arranged at the right angle of the L-shaped structure.

[0045] When the novel tool is used, firstly, the cross plate four end threaded holes are fixedly connected with the workpiece flange threaded holes by bolts, then the workpiece horizontal lifting can be realized by suspending the horizontal section of the bent rod by the lifting belt.

[0046] The tool for heavy ignition assembly is used, the ignition device is lifted and assembled on site, the horizontal lifting of the ignition device can be realized, the unsafe and uncontrolled operation of personnel using arm force to keep the workpiece horizontal is reduced, and the thread quality of the pressure measuring hole is guaranteed to be intact.

[0047] The novel tool can realize the free rotation of the workpiece in the suspended state, and the operation is convenient. The traditional adjustment mode has large error, needs to be repeatedly adjusted, and the pose adjustment and assembly generally need to be adjusted for about 30 minutes, after the tool is used, the adjustment can be completed within 3 minutes, and the ignition assembly efficiency is improved.

[0048] By using the tool for heavy ignition assembly, the product safety and quality are ensured, the manpower is reduced, the cost is saved, and the production efficiency of the whole ignition assembly process is improved by 76%.

[0049] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

[0050] Although the content of the utility model has been introduced in detail by the above preferred embodiments, it should be recognized that the above description should not be considered as the limitation of the utility model. After the above content is read by the person skilled in the art, various modifications and substitutions of the utility model will be obvious. Therefore, the protection scope of the utility model should be limited by the appended claims.

[0051] The content not described in detail in the utility model specification belongs to the public knowledge of the person skilled in the art.

Claims

1. A tooling for heavy-duty firing assembly, characterized by, The utility model relates to a lifting device for ignition device, which comprises a cross plate (1), a connecting plate (2), a rotating shaft (3), a lifting lug (4) and a bent rod (5). The cross plate (1) is fixedly connected with the flange of the ignition device. The connecting plate (2) is fixedly connected with the cross plate (1). The rotating shaft (3) is installed at the center of the connecting plate (2) and is connected with the lifting lug (4) in a hinged manner to rotate. The lifting lug (4) is fixedly connected with the bent rod (5), and the bent rod (5) is connected with a lifting belt. By replacing different cross plates (1) and adjusting the position of the lifting belt, the lifting device can adapt to the lifting requirements of ignition devices of different sizes and masses. The cross plate (1) comprises a disc and four connecting plates.

2. A tool for heavy-duty firing assembly according to claim 1, characterized in that: The disc and the four connecting plates are integrally formed.

3. A tool for heavy-duty firing assembly according to claim 2, characterized in that: A circular hole is arranged in the middle of the disc.

4. A tool for heavy-duty firing assembly as claimed in claim 2, wherein: A plurality of threaded holes are uniformly arranged on the circumference of the circular hole.

5. A tool for heavy-duty firing assembly according to claim 4, characterized in that: The circular hole is matched with the rotating shaft (3).

6. A tool for heavy-duty firing assembly as claimed in claim 1, wherein: The connecting plate (2) is a disc structure.

7. A tool for heavy-duty firing assembly according to claim 6, characterized in that: A hollow boss is arranged at the center of the disc structure.

8. A tool for heavy-duty firing assembly as claimed in claim 1, wherein: The center of the hollow boss is matched with the outer diameter of the rotating shaft (3) to install the rotating shaft (3). The outer side of the hollow boss is sleeved with the lifting lug (4). The lifting lug (4) comprises a semicircular part and a rectangular part. A through hole is arranged at the joint of the semicircular part and the rectangular part. The through hole is sleeved on the hollow boss of the connecting plate (2). Four threaded holes are arranged on the rectangular part to connect with the bent rod (5). The bent rod (5) is an L-shaped structure. One end of the L-shaped structure is connected with the lifting lug (4). The other side of the L-shaped structure is connected with the lifting belt. A reinforcing rib is arranged at the right angle of the L-shaped structure.

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