Auxiliary supporting device for tire body

Abstract

The utility model discloses an auxiliary supporting device for a tire body. The auxiliary supporting device comprises a bearing, a bracket, a pressing plate, a bolt and a rotating support, the support is mainly composed of an annular base, inclined supports, radial supports and a bearing seat, the lower ends of the inclined supports are fixed to the upper end face of the annular base at equal intervals, the upper end of each inclined support is connected with one end of the corresponding radial support, the other end of each radial support is connected to the bearing seat, and positioning holes are formed in the radial supports. The bearing is installed in the bearing seat, the rotating support is connected to the rotating shaft in a sleeved mode, the circumferential surface of the rotating support is connected with a supporting arm, the supporting arm is provided with a fixing seat and a through hole, the fixing seat is provided with a notch used for containing a tire body supporting plate, and the pressing plate is detachably connected to the fixing seat and seals an opening above the notch of the fixing seat. And the bolt is simultaneously inserted into the through hole of the support arm and the positioning hole of the radial support. According to the utility model, the rotating, positioning and transferring of the tire body can be easily realized, and the assembly efficiency of the heat shield is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aviation engine assembly, and in particular relates to an auxiliary supporting device for positioning and transporting a combustion chamber carcass. Background Art

[0002] The engine combustion chamber is the core component of an aircraft engine. During operation, it will generate extremely high operating temperatures. At this time, the temperature must be kept within a reasonable range to ensure the normal operation of the engine. Figure 1 The carcass of the engine combustion chamber is shown. When processing the carcass, a heat shield needs to be assembled and covered on the outer wall of the carcass to isolate some heat from entering the body and prevent the electronic components inside the machine from being damaged due to overheating.

[0003] At present, there are the following problems in the assembly process of the heat shield:

[0004] ①. Due to the large weight and size of the carcass, there is no dedicated workbench to adjust its posture. The assemblers need to frequently move around the carcass to the corresponding position to weld the heat shield;

[0005] ② The currently used bracket lacks carcass fixing and limiting devices, which poses a safety hazard.

[0006] ③. It is inconvenient to transport. Since the carcass is too heavy, it requires two to three people to cooperate and use a crane to transport the carcass to the operation site. Summary of the invention

[0007] In response to the problems described in the background technology, the utility model aims to provide a carcass auxiliary support device. When assembling the heat shield, the operator maintains the same position and actively rotates the carcass to the heat shield assembly welding position, and can keep the position fixed, which is convenient for transportation before and after assembly.

[0008] In order to solve the above problems, the utility model adopts the following technical solutions:

[0009] The carcass auxiliary support device comprises an outer ring and an inner ring, the outer ring and the inner ring are connected and supported by a radially arranged support plate, one end face of the outer ring is connected with a ring body, and the auxiliary support device comprises:

[0010] A bracket, wherein the bracket is mainly composed of an annular base, an oblique support, a radial support and a bearing seat, the lower ends of at least three of the oblique supports are fixed at equal intervals on the upper end surface of the annular base, the oblique supports extend along the generatrix direction of a conical surface coaxial with the annular base and with the annular base as the bottom surface, the upper end of each oblique support is respectively connected to one end of a radial support, the multiple radial supports are located in the same plane, the other end of the radial support is connected to the bearing seat, and a positioning hole is opened on the radial support;

[0011] A bearing, wherein the bearing is installed in a bearing seat, and a rotating shaft is installed in the inner ring of the bearing;

[0012] A rotating support, wherein a through hole is provided at the center of the rotating support, a bushing is installed in the through hole, the rotating support is sleeved on the rotating shaft through the inner hole of the bushing, at least three arms are connected to the circumferential surface of the rotating support, each arm is provided with a fixing seat and a through hole, and the fixing seat has a notch for accommodating the carcass support plate and the opening is upward;

[0013] A pressing plate, which is detachably connected to the fixing seat and closes the opening above the notch of the fixing seat;

[0014] A latch pin is inserted into the through hole of the support arm and the positioning hole of the radial support at the same time.

[0015] As an option, at least three universal rollers with brakes are connected to the lower end surface of the annular base.

[0016] As an option, the oblique support is a channel steel, and the notch of the channel steel faces the inner side of the annular base.

[0017] As an option, a support is provided on the radial support, and a positioning hole is opened at the upper end of the support.

[0018] As an option, the bearing is a cylindrical roller bearing.

[0019] Compared with the prior art, the utility model has the following characteristics:

[0020] (1) When the heat shield is assembled to the carcass surface, the carcass can be rotated 360 degrees to adjust the position of the carcass relative to the assembler at will, making it easier for the assembler to operate;

[0021] (2) When the carcass needs to be fixed at a certain angle, the position of the carcass is fixed by inserting the pin into the positioning hole and the through hole;

[0022] (3) The carcass and auxiliary support device can be moved as a whole through universal wheels with brakes, which is convenient for transportation and reduces the workload of assembly personnel and the number of participants;

[0023] (4) The auxiliary support device is positioned through the support plate of the carcass, and does not affect the installation of the heat insulation cover on the outer ring of the carcass;

[0024] (5) There are multiple hollow structures between the oblique support, radial support and support arms of the auxiliary support device to facilitate the operation of the assembler and reduce the interference position of the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the carcass structure required to be supported in the utility model;

[0026] Figure 2 It is a structural schematic diagram of the auxiliary support device in the utility model;

[0027] Figure 3 This is a schematic diagram of the state in which the carcass is installed on the auxiliary support device in the utility model;

[0028] In the figure: 1-bearing, 2-bushing, 3-bracket, 4-fixed seat, 5-pressure plate, 6-pin. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various modifications, substitutions and changes made according to the common technical knowledge and customary means in the field are included in the scope of the present invention.

[0030] like Figure 1 , is a schematic diagram of the engine combustion chamber carcass, and is a model of the engine combustion chamber carcass. The carcass is made of high-temperature alloy, is large in size and heavy in weight. One of the carcass processing procedures is to cover its surface with a heat shield. During the assembly process, the carcass must be flipped 360° and spot welded to the heat shield and carcass. This directly leads to the need to repeatedly flip the heavy carcass during the assembly process, resulting in a waste of time and a huge consumption of physical strength, affecting the delivery schedule and wasting working hours. Figure 3 An auxiliary support device for supporting and transporting the engine carcass is demonstrated, which can easily realize the rotation of the carcass, improve assembly efficiency, and reduce the labor intensity during the carcass flipping process.

[0031] like Figure 2The auxiliary support device includes a bearing 1, a bracket 3, a pressure plate 5, a latch 6 and a rotating support. The bracket 3 is mainly composed of an annular base, an oblique support, a radial support and a bearing seat. The lower ends of three oblique supports made of channel steel are fixed at equal intervals on the upper end surface of the annular base. The oblique supports extend along the generatrix of a conical surface coaxial with the annular base and with the annular base as the bottom surface. The upper end of each oblique support is respectively connected to one end of a radial support made of a thick plate. The three radial supports are located in the same plane, and the other end of the radial support is connected to the bearing seat. The radial support has a positioning hole. The bearing 1 is installed in the bearing seat, and a rotating shaft is installed in the inner ring of the bearing 1. The bearing 1 adopts a GB / T 292-64 cylindrical roller bearing. The advantage of the cylindrical roller bearing is that it can withstand a large amount of radial force and serves as a support carrier for bearing the mass of the tire body. A through hole is opened in the center of the rotating support, and a bushing 2 is installed in the through hole. The rotating support is sleeved on the rotating shaft through the inner hole of the bushing 2. Three arms are connected to the circumferential surface of the rotating support. Each arm is provided with a fixed seat 4 and a support. A positioning hole is opened at the upper end of the support. The fixed seat 4 has a notch for accommodating the carcass support plate and the opening is facing upward. The pressure plate 5 is detachably connected to the fixed seat 4 by screws and closes the opening above the notch of the fixed seat 4. The latch 6 is simultaneously inserted into the through hole of the support arm and the positioning hole of the radial support.

[0032] When in use, first load the carcass from the top of the auxiliary support device, wait for any three support plates of the carcass to fall into the notch of the fixing seat 4, and then use the pressing plate 5 (3 pieces) to close the notch. At this time, the carcass can be rotated 360° at will. When it is turned to the appropriate angle, the pin 6 is inserted through the through hole of the support arm and the positioning hole of the radial support to prevent the carcass from rotating in the working state, thereby fixing the posture of the carcass, and then the heat shield assembly operation can be performed on the carcass. After completing the heat shield assembly work in this area, take out the pin 6, rotate the carcass, and then insert the pin 6 into the through hole of the next support arm and the positioning hole of the radial support to fix the carcass, continue the operation, and repeat the cycle until all heat shields are assembled.

[0033] After the heat shield assembly of the carcass is completed, the brakes of the universal wheels are released, and the carcass and the auxiliary support device are pushed as a whole to the tooling placement area without removing the carcass, so that it can be directly operated the next time it is used.

[0034] The auxiliary support device of the utility model can quickly and easily position and clamp the engine combustion chamber carcass, and can rotate 360° to meet the needs of different installation postures of the heat shield when covering. The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A carcass auxiliary support device, wherein the carcass comprises an outer ring and an inner ring, the outer ring and the inner ring are connected and supported by a radially arranged support plate, and one end face of the outer ring is connected to a ring body, characterized in that: The auxiliary support device includes: A bracket (3), wherein the bracket (3) is mainly composed of an annular base, an oblique support, a radial support and a bearing seat, the lower ends of at least three of the oblique supports are fixed at equal intervals on the upper end surface of the annular base, the oblique supports extend along the generatrix direction of a conical surface coaxial with the annular base and with the annular base as the bottom surface, the upper end of each oblique support is respectively connected to one end of a radial support, the multiple radial supports are located in the same plane, the other ends of the radial supports are connected to the bearing seat, and positioning holes are provided on the radial supports; A bearing (1), wherein the bearing (1) is mounted in a bearing seat, and a rotating shaft is mounted in the inner ring of the bearing (1); A rotating support, wherein a through hole is formed in the center of the rotating support, a bushing (2) is installed in the through hole, the rotating support is sleeved on the rotating shaft through the inner hole of the bushing (2), at least three arms are connected to the circumferential surface of the rotating support, each arm is provided with a fixing seat (4) and a through hole, and the fixing seat (4) has a slot for accommodating a carcass support plate and the slot opens upward; A pressing plate (5), the pressing plate (5) being detachably connected to the fixing seat (4) and closing the opening above the notch of the fixing seat (4); A latch pin (6) is inserted into the through hole of the support arm and the positioning hole of the radial support at the same time.

2. The carcass auxiliary support device according to claim 1, characterized in that: At least three universal rollers with brakes are connected to the lower end surface of the annular base.

3. The carcass auxiliary support device according to claim 1, characterized in that: The oblique support is a channel steel, and the notch of the channel steel faces the inner side of the annular base.

4. The carcass auxiliary support device according to claim 1, characterized in that: A support is arranged on the radial support, and a positioning hole is opened at the upper end of the support.

5. The carcass auxiliary support device according to claim 1, characterized in that: The bearing (1) is a cylindrical roller bearing.

Images