Knocking-free assembling device and method for wedge ring

Abstract

The invention relates to a device and a method for knock-free assembly of a wedge ring, which are characterized by comprising a worm (1), an arc-shaped support frame (5), a worm gear block (2), a through hole support block I (3), a through hole support block II (4), a T-shaped fastening nail (9) and a concentric-square-shaped fastening nail (8), wherein the through hole supporting block I (3) is installed on the left side of the arc-shaped supporting frame (5), the through hole supporting block II (4) is installed on the right side of the arc-shaped supporting frame (5), and the worm (1) with the two ends sleeved with the linings (6) is pressed on the arc-shaped supporting frame (5) through the through hole supporting block I (3) and the through hole supporting block II (4). The problems that in a wedge ring assembly mode in the prior art, impact assembly easily causes damage to internal equipment, knocking assembly cannot be conducted in fire-related operation, and the torque value cannot be quantified in the assembly process are solved.

Description

Technical Field

[0001] The invention relates to the field of aviation, aerospace and torpedo product assembly, and in particular to a device and method for knock-free assembly of a wedge ring, which can realize impact-free assembly and disassembly of the wedge ring in a small space. Background Art

[0002] Wedge ring connection is a common connection method in aviation, aerospace, and torpedo products. Compared with traditional flange-bolt and radial screw connection structures, it has the advantages of light additional mass, smooth transition of connection surface, compact structure and large load-bearing capacity. It is widely used in the connection of cabin sections of aerospace vehicles. The wedge ring connection is a structure that relies on two right-angled triangular wedge rings to wedge the two sections of the connected body. During the assembly process, wedge ring 1 contacts the left side of the wedge ring groove of the connected body 2, and wedge ring 2 contacts the right side of the wedge ring groove of the connected body 1. When the wedge ring 2 is gradually wedged in, it generates great tension and friction force with the wedge ring 1 and the right side of the wedge ring groove of the connected body 1. At this time, the torque required for the assembly of the wedge ring 2 increases exponentially. Due to the small operating space, the wedge ring 2 can only be installed by impact. After it is fully installed, the two wedge rings tighten the two connected bodies. The joint gap between the two connected bodies after tightening is generally not more than 0.05mm. Figure 1 Wedge ring connection schematic diagram, Figure 2 Cross-section of wedge ring assembly.

[0003] The wedge ring is made of two right-angled triangular metal rings with a smaller wedge angle. A positioning pin is installed on one of the wedge rings (called a wedge ring with a pin). After the inner and outer rings are fitted, the wedge ring with a pin is first inserted into the hole-shaped cavity from an oblong hole above the wedge groove of the outer ring, and the positioning pin is installed in the positioning pin hole on the inner ring. Then the wedge ring without a pin is inserted into the annular cavity from the other direction of the oblong hole and moves relative to the wedge ring with a pin. Due to the relative sliding of the wedge-shaped inclined surfaces of the two wedge rings, the side of the wedge ring presses the contact surface of the outer ring groove, and the lower contact surface presses the surface of the inner ring groove, pushing the inner and outer rings to move in opposite directions until the two wedge rings are installed and wedged, thus completing the effective connection of the two connectors. Then, a filling block of appropriate size is installed in the groove between the two wedge rings to prevent the relative movement of the wedge rings. Finally, a cover plate is installed above the wedge ring and the filling block, and it is tightened with screws to fix the filling block while ensuring the smoothness of the outer surface of the connector.

[0004] Since there are large reaction forces and friction forces between wedge rings and between wedge rings and the cabin, a large impact force or a continuous tangential force needs to be applied during the assembly of the second wedge ring to install the wedge ring in place. Currently, the second wedge ring is assembled by impact, which has the following three problems:

[0005] (1) Impact assembly can easily cause damage to internal equipment.

[0006] (2) During fire-related operations, no hammering or assembly work shall be performed.

[0007] (3) The impact force during the assembly process cannot be quantified. Summary of the invention

[0008] The present invention relates to a device and method for knock-free assembly of a wedge ring, which realizes knock-free assembly and disassembly of the wedge ring, quantifies the assembly torque value of the wedge ring, and improves product quality.

[0009] A device for knock-free assembly of a wedge ring, characterized in that it includes a worm 1, an arc-shaped support frame 5, a worm wheel block 2, a through-hole support block I3, a through-hole support block II4, a "T"-shaped fastening nail 9 and a "U"-shaped fastening nail 8; wherein, the through-hole support block I3 is installed on the left side of the arc-shaped support frame 5, and the through-hole support block II4 is installed on the right side of the arc-shaped support frame 5, and the through-hole support block I3 and the through-hole support block II4 press the worm 1 with bushings 6 at both ends onto the arc-shaped support frame 5; the worm wheel block 2 is installed in the sliding groove 531 of the arc-shaped support frame 5, and the worm wheel block 2 can be driven to rotate when the worm 1 rotates, a "T"-shaped fastening nail 9 is fixedly installed on the left end of the arc-shaped support frame 5, and a "U"-shaped fastening nail 8 is fixedly installed on the right end of the arc-shaped support frame 5; a transfer block 10 is also installed at one end of the worm 1;

[0010] During operation, the torque is applied through the torque wrench to rotate the worm 1, driving the worm gear block 2 to move linearly. The worm gear block 2 presses against the wedge ring to move linearly, and the wedge ring is pushed into the cavity to complete the assembly. After the worm gear block 2 is connected to the process hole of the wedge ring, the worm 1 is rotated in the opposite direction to complete the disassembly.

[0011] A device for knock-free assembly of wedge rings, characterized in that the arc-shaped support frame 5 includes an arc-shaped plate 55, a solid plate 52 is fixed on the lower surface of the arc-shaped plate 55, an arc-shaped boss 53 is provided on the lower surface, two support block fixing holes 54 are provided on both sides of the upper surface of the arc-shaped plate 56, and the through-hole support block I3 and the through-hole support block II4 are respectively fixed on the support block fixing holes 54 on both sides; the through-hole support block I3 and the through-hole support block II4 are fastened to the arc-shaped plate 56 by means of twisted hole bolts 7; a through sliding groove 531 is provided on the solid plate 52 and the arc-shaped boss 53; an arc-shaped groove 55 is provided on the upper surface of the arc-shaped plate 55, and fastening holes 521 are provided at both ends of the solid plate 52, and "T"-shaped fastening nails 9 and "U"-shaped fastening nails 8 are respectively fixed in the fastening holes 521 provided at both ends of the solid plate 52.

[0012] A device for knock-free assembly of a wedge ring, characterized in that the adapter block 10 can use different types of adapter blocks for connection with different external force-applying devices.

[0013] A method for knock-free assembly of a wedge ring, characterized in that the method comprises the following steps using the above-mentioned device for knock-free assembly of a wedge ring:

[0014] To install the wedge ring:

[0015] Step 1: pre-install wedge ring 1 and wedge ring 2 into the cavity of the docking body in sequence;

[0016] Step 2: Install the wedge ring knock-free device to the working surface, and tighten the “U”-shaped fastening nail 8 and the “T”-shaped fastening nail 9;

[0017] Step 3: Adjust the torque wrench to the set torque value, and connect the torque wrench to the wedge ring knock-free device adapter block 10;

[0018] Step 4: Tighten the torque wrench and apply the torque value until the torque is fully applied (the torque wrench is unloaded);

[0019] Step 5. Remove the torque wrench, remove the T-shaped fastening nail 9, the U-shaped fastening nail 8, remove the wedge ring anti-knock device, and complete the installation.

[0020] Steps to remove the wedge ring:

[0021] Step 1: Install the wedge ring knock-free device on the working surface, buckle it into the process hole of the wedge ring 2, and tighten the "U"-shaped fastening nail 8 and the "T"-shaped fastening nail 9;

[0022] Step 2: Adjust the torque wrench to the counterclockwise screwing state, and connect the torque wrench to the wedge ring knock-free device adapter block 10;

[0023] Step 3: Tighten the torque wrench until wedge ring 2 is pulled out of the cavity and contacts wedge ring 1;

[0024] Step 4: Remove the torque wrench, remove the T” fastening nail 9, the “U” shaped fastening nail 8, and remove the wedge ring anti-knock device.

[0025] Step 5: Take out wedge ring 2 and wedge ring 1 from the cavity of the docking body in turn to complete the disassembly.

[0026] Beneficial Effects

[0027] The present invention discloses a device and method for knock-free assembly of a wedge ring, which realizes knock-free assembly of the wedge ring in a small space and quantifies the torque value during the assembly process, thereby improving product quality.

[0028] The present invention aims to solve the problems in the prior art of wedge ring assembly that impact assembly easily causes damage to internal equipment, that fire-related operations cannot be performed for knocking assembly, and that the torque value of the assembly process cannot be quantified. The device draws on the structural characteristics of the worm gear, and drives the worm gear block (special-shaped worm gear) to perform curved motion through the worm gear, thereby gradually pushing the wedge ring into the wedge ring groove to complete the wedge ring assembly work.

[0029] The present invention has a simple structure, ingenious design and convenient operation. A new wedge ring assembly process method has been invented to reduce assembly risks and improve quality consistency. Compared with traditional process methods, the wedge ring knock-free device developed by the project can fundamentally solve the problem of disabled processes caused by knocking operations, avoid irreversible damage to the equipment in the cabin caused by knocking assembly, realize knock-free assembly throughout the entire process, quantify the assembly torque value by 100%, and improve product quality consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 , wedge ring connection schematic.

[0031] (a) Schematic diagram of a pair of wedge ring structures;

[0032] (b) Schematic diagram of the structure when a pair of wedge rings are assembled;

[0033] (c) Schematic diagram of the assembly process of a pair of wedge rings;

[0034] Figure 2 , wedge ring assembly cross-section diagram;

[0035] Figure 3 , the main diagram of the present invention;

[0036] Figure 4 ,yes Figure 3 A top view of

[0037] Figure 5 , is a schematic diagram of the three-dimensional structure of the present invention;

[0038] Figure 6 , is a schematic diagram of the worm structure of the present invention;

[0039] Figure 7 , is a schematic diagram of the worm gear block structure of the present invention;

[0040] Figure 8 , is a schematic structural diagram of a through hole support block 1 of the present invention;

[0041] Fig. 9 , is a schematic structural diagram of a through hole support block II of the present invention;

[0042] Fig.10 , is a schematic diagram of the structure of the arc-shaped support frame of the present invention;

[0043] Fig.11 , is a schematic diagram of the bushing structure of the present invention;

[0044] Fig.12 , is a schematic diagram of the structure of the tapped hole bolt of the present invention;

[0045] Fig.13 , is a schematic diagram of the structure of the "U"-shaped fastening nail of the present invention;

[0046] Fig.14 , is a schematic diagram of the structure of the "T"-shaped fastening nail of the present invention;

[0047] Fig.15 , is a schematic diagram of the structure of the switching block of the present invention.

[0048] Among them, 1 is a worm, 2 is a worm wheel block, 3 is a through hole support block I, 4 is a through hole support block II, 5 is an arc support frame, 6 is a bushing, 7 is a twisted hole bolt, 8 is a "U"-shaped fastening nail 8, 9 is a "T"-shaped fastening nail, 52 is a solid plate, 53 is an arc-shaped boss, 54 is a support block fixing hole, 55 is an arc-shaped plate, 56 is an arc-shaped plate, 521 is a fastening positioning hole, and 531 is a sliding groove. DETAILED DESCRIPTION

[0049] The main view of the device is as follows Figure 3 As shown, the top view is as Figure 4 shown.

[0050] The device to which the present invention relates is characterized in that it includes a worm 1, a worm wheel block 2, a through hole support block I 3, a through hole support block II 4, an arc support frame 5, a bushing 6, a twisted hole bolt 7, a "U"-shaped fastening nail 8, a "T"-shaped fastening nail 9, and a transfer block 10, and the device adopts a worm gear structure. Among them, the worm wheel block 2 is installed in the sliding groove of the arc support frame 5, and can perform linear motion in the groove; the bushing 6 is installed at the contact point between the worm 1 and the arc support frame 5, which plays a greater axial support role. After the worm 1 is installed, it cooperates with the worm wheel block 2 and restricts it in the sliding groove of the support frame 5. The worm 1 can perform rotational motion to drive the worm wheel block 2 to perform curved motion; the through hole support block I 3 and the through hole support block II 4 press the worm 1 with the bushing 6 installed onto the arc support frame 5, and the worm 1, the through hole support block I 3, and the through hole support block II are connected by the twisted hole bolt 7. 4 is fixed on the arc support frame 5; the adapter block 10 is connected to one end of the connecting rod of the worm 1 to facilitate connection with the external force-applying device. The adapter block 10 and the worm 1 are fixed by a top screw without relative movement; the boss at the lower end of the arc support frame 5 cooperates with the groove at the installation position of the cabin to withstand the reaction force during the installation process; the "U"-shaped fastening nail 8 and the "T"-shaped fastening nail 9 fix the arc support frame 5 on the cabin that needs to be assembled with a wedge ring to achieve auxiliary positioning. The schematic diagram of the device structure is shown in Figure 5 shown.

[0051] During operation, first match the lower end boss of the device as a whole (i.e. the lower end boss of the arc-shaped support frame 5) with the groove of the cabin installation position, then use the "U"-shaped fastening nail 8 and the "T"-shaped fastening nail 9 to fix the device on the surface of the cabin, and use a torque wrench to connect to the adapter block 10 to apply torque. The worm 1 rotates to drive the worm gear block 2 to move linearly, and the worm gear block 2 presses against the large end of the wedge ring to move linearly, pushing the wedge ring into the cavity, and the lower end boss of the arc-shaped support frame 5 and the groove of the cabin installation position bear the reaction force during the installation process until the wedge ring is wedged tight, completing the wedge ring assembly.

[0052] The invention provides a device and method for knock-free assembly of a wedge ring based on the appearance and assembly characteristics of a cabin and a wedge ring. By drawing on the working principle of a worm gear, the wedge ring is installed into the cavity of the cabin. The specific device scheme is as follows: a device for knock-free assembly of a wedge ring, comprising a worm, a worm gear block, a through hole support block I, a through hole support block II, an arc-shaped support frame, a bushing, a twisted hole bolt, a "U"-shaped fastening nail, a "T"-shaped fastening nail, and a transfer block.

[0053] The worm is a cylindrical spiral structure. One end of the connecting rod is connected to the adapter block, which is used to receive the torque applied from the outside and transfer it to the wedge ring step by step. After matching with the worm wheel, it has a high transmission ratio and good self-locking performance. Figure 6 shown.

[0054] The worm gear block is a special-shaped partial worm gear structure, which is a convex structure as a whole. The upper worm gear cooperates with the worm to transmit the torque provided by the worm. The lower convex block contacts the force-applying end of the wedge ring and moves in a curve to push the wedge ring to move into the cavity in the cabin. Figure 7 shown.

[0055] The through hole support block I is a convex partial through hole structure, which supports and fixes the bushing in the circular hole, is installed in the -Z direction of the arc support frame, and is connected to the arc support frame as a whole after being fastened by the twisted hole bolts to play a supporting role. Figure 8 shown.

[0056] The through hole support block II is a convex partial through hole structure, which fixes the bushing support in the circular hole and is installed in the +Z direction of the arc support frame. After being fastened by the twisted hole bolts, it is connected to the arc support frame as a whole to play a supporting role. Fig. 9 shown.

[0057] The arc support frame is a flat arc with an inner groove structure, which is the main body of the device. The upper part is connected with the through hole support block I and the through hole support block II. The middle groove is in non-fixed contact with the worm gear block, which is used to provide guidance and support for the sliding of the worm gear block. The convex block at the lower end cooperates with the working piece to better withstand the reaction force generated during the movement of the worm gear, such as Fig.10 shown.

[0058] The bushing is a boss structure with shoulder bushing, which is processed and ground to reduce the roughness of the working surface. There are two bushings, which are installed between the worm and the through hole support block I and the through hole support block II to reduce the rotation friction of the worm and provide greater axial support. Fig.11 shown.

[0059] The threaded hole bolts are standard parts, and the number is 4. They are used to fix the pressure block on the arc support frame to improve the installation accuracy and ensure the reliable connection between the two. The inverted installation method can better ensure the overall rigidity of the device. Fig.12 shown.

[0060] The “U”-shaped fastening nail is a “U”-shaped flat structure, which is convenient for applying torque in a small space, and the anti-falling design can better enhance the integrity of the device. Fig.13 shown.

[0061] The "T"-shaped fastening nail is a "T"-shaped cylindrical structure, which is convenient for applying torque, and the anti-falling design improves the integrity of the lifting device. Fig.14 shown.

[0062] The adapter block is a quadrangular prism with grooves at both ends. The central elliptical hole is connected to the worm, and the square hole is used to connect with the torque wrench. It is a non-integrated structure, which is convenient for use with torque wrenches of different models and specifications. Fig.15 shown.

[0063] The preferred embodiments of the present invention are described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art. However, it should be noted that the purpose of publishing the embodiments is to help further understand the present invention. Various substitutions and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the present invention should not be limited to the contents disclosed in the embodiments, and the scope of the present invention to be protected shall be subject to the scope defined in the claims.

[0064] The worm gear block 2 is installed in the sliding groove of the arc support frame 5 and can perform linear motion in the groove; a bushing 6 is installed at the contact point between the worm 1 and the arc support frame 5 to play a greater axial support role. After the worm 1 is installed, it cooperates with the worm gear block 2 and restricts it in the sliding groove of the arc support frame 5. The worm 1 can perform rotational motion to drive the worm gear block 2 to perform curved motion; the through-hole support block I3 and the through-hole support block II4 press the worm 1 with the bushing installed on the arc support frame 5, and the through-hole bolt 7 is used to tighten the screw hole. The worm 1, the through-hole support block I3 and the through-hole support block II4 are fixed on the arc-shaped support frame 5; the adapter block 10 is connected to one end of the connecting rod of the worm 1 to facilitate connection with an external force-applying device, and the adapter block 10 and the worm 1 are fixed by a top screw without relative movement; the boss at the lower end of the arc-shaped support frame 5 cooperates with the groove at the installation position of the cabin to withstand the reaction force during the installation process; the anti-drop fastening nails 9 fix the arc-shaped support frame 5 on the cabin that needs to be assembled with a wedge ring to achieve auxiliary positioning.

[0065] During operation, the torque is applied through the torque wrench to rotate the worm 1, driving the worm gear block 2 to move linearly. The worm gear block 2 presses against the wedge ring to move linearly, and the wedge ring is pushed into the cavity to complete the assembly. After the worm gear block 2 is connected to the process hole of the wedge ring, the worm 1 is rotated in the opposite direction to complete the disassembly.

[0066] Note: The wedge ring is an assembly object, and the cabin is a product that supports the wedge ring. Therefore, the wedge ring and the cabin are not part of the invention.

[0067] After the application of this device, the original three-person operation of installing the wedge ring can be reduced to two-person operation, thus reducing the number of operators in the fire workshop.

[0068] The wedge ring no-knock assembly device is a purely mechanical structure, does not involve electricity or gas, and is suitable for fire work sites.

[0069] 3. Key points of the technical solution of the present invention

[0070] The wedge ring knock-free assembly device adopts a worm gear structure to realize the knock-free assembly of the wedge ring in a small space, and can be applied to the assembly of components, complete machines, and pyrotechnics (not in bare charge state).

[0071] Realize the quantification of torque value in the wedge ring assembly process.

[0072] The wedge ring no-knock assembly device adopts a modular design. For wedge ring openings of different sizes, the adaptation can be completed by replacing the base.

Claims

1. A device for knock-free assembly of a wedge ring, characterized in that: The invention comprises a worm (1), an arc-shaped support frame (5), a worm wheel block (2), a through hole support block I (3), a through hole support block II (4), a "T"-shaped fastening nail (9) and a "U"-shaped fastening nail (8); wherein the through hole support block I (3) is installed on the left side of the arc-shaped support frame (5), and the through hole support block II (4) is installed on the right side of the arc-shaped support frame (5); the through hole support block I (3) and the through hole support block II (4) are sleeved with linings at both ends. The worm (1) of the sleeve (6) is pressed onto the arc-shaped support frame (5); the worm wheel block (2) is installed in the sliding groove (531) of the arc-shaped support frame (5); when the worm (1) rotates, the worm wheel block (2) can be driven to rotate; a "T"-shaped fastening nail (9) is fixedly installed at the left end of the arc-shaped support frame (5), and a "U"-shaped fastening nail (8) is fixedly installed at the right end of the arc-shaped support frame (5); a transfer block (10) is also installed at one end of the worm (1); During operation, a torque is applied by a torque wrench to cause the worm (1) to rotate, thereby driving the worm wheel block (2) to perform linear motion. The worm wheel block (2) presses against the wedge ring to perform linear motion, and the wedge ring is pushed into the cavity to complete the assembly. After the worm wheel block (2) is connected to the process hole of the wedge ring, the worm (1) is rotated in the opposite direction to complete the disassembly.

2. A device for knock-free assembly of a wedge ring, characterized in that: The arc support frame (5) comprises an arc plate (55), a solid plate (52) is fixed on the lower surface of the arc plate (55), an arc boss (53) is provided on the lower surface, two support block fixing holes (54) are provided on both sides of the upper surface of the arc plate (56), and the through hole support block I (3) and the through hole support block II (4) are respectively fixed on the support block fixing holes (54) on both sides; the through hole support block I (3) and the through hole support block II4 are fastened to the arc plate (56) by using a twisted hole bolt (7); a through sliding groove (531) is provided on the solid plate (52) and the arc boss (53); an arc groove (55) is provided on the upper surface of the arc plate (55), and fastening holes (521) are provided at both ends of the solid plate (52), and a "T"-shaped fastening nail (9) and a "U"-shaped fastening nail (8) are respectively fixed in the fastening holes (521) provided at both ends of the solid plate (52).

3. A device for knock-free assembly of a wedge ring, characterized in that: The adapter block (10) can use different types of adapter blocks for connecting with different external force applying devices.

4. A method for assembling a wedge ring without knocking, characterized in that: A device for non-percussion assembly of a wedge ring using right 1 or right 2 comprises the following steps: To install the wedge ring: Step 1: pre-install wedge ring I and wedge ring II into the cavity of the docking body in sequence; Step 2: Install the device of the present invention on the working surface, and tighten the "U"-shaped fastening nails (8) and the "T"-shaped fastening nails (9); Step 3: adjusting the torque wrench to a set torque value, and connecting the torque wrench to the device adapter block (10) of the present invention; Step 4: Tighten the torque wrench and apply the torque value until the torque is fully applied; Step 5: Remove the torque wrench, remove the T-shaped fastening nail (9), the U-shaped fastening nail (8), remove the device of the present invention, and complete the installation; Steps to remove the wedge ring: Step 1: Install the wedge ring knock-free device on the working surface, and buckle it into the process hole of the wedge ring II, and tighten the "U"-shaped fastening nail (8) and the "T"-shaped fastening nail (9); Step 2: Adjust the torque wrench to the counterclockwise screwing state, and connect the torque wrench to the wedge ring knock-free device adapter block (10); Step 3: Tighten the torque wrench until wedge ring II is pulled out of the cavity and contacts wedge ring I; Step 4: Remove the torque wrench, remove the T” fastening nail (9), the “U”-shaped fastening nail (8), and remove the device of the present invention; Step 5: Take out wedge ring II and wedge ring I from the cavity of the docking body in turn to complete the disassembly.

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