CN220707407U - Frock in regulation combustion chamber fin clearance - Google Patents
Frock in regulation combustion chamber fin clearance Download PDFInfo
- Publication number
- CN220707407U CN220707407U CN202322096755.3U CN202322096755U CN220707407U CN 220707407 U CN220707407 U CN 220707407U CN 202322096755 U CN202322096755 U CN 202322096755U CN 220707407 U CN220707407 U CN 220707407U
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- combustion chamber
- adjusting
- screw rod
- fish scale
- lifting
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 38
- 241000251468 Actinopterygii Species 0.000 claims abstract description 22
- 238000001125 extrusion Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a tool for adjusting a fish scale gap of a combustion chamber, which comprises a base, wherein a mounting plate is fixedly arranged on the base through a support column, a guide rod is fixedly arranged on one side of the mounting plate, a fixed cross beam is fixedly arranged at the top end of the guide rod, a lifting screw rod is rotatably arranged between the fixed cross beam and the mounting plate, a lifting press block is sleeved outside the guide rod in a sliding manner, and the lifting press block is in threaded connection with the lifting screw rod. According to the utility model, the distance between the thread sliders is conveniently and manually adjusted by adjusting the nut to rotate the front and back thread screws, so that the distance between the thread sliders is controlled, the device is suitable for combustion chambers with different outer diameters, most types of combustion chambers can be matched, the connecting handle can be rotated through the handle, so that the lifting screw is driven to rotate, the pressing down distance of the lifting press block is adjusted by fixing the screw thread screwing distance, the uniformity of the fish scale gap is ensured, the damage of a manual hammer to materials is avoided, and the uniformity of extrusion force each time is ensured.
Description
Technical Field
The utility model belongs to the technical field of engine combustion chambers, and particularly relates to a tool for adjusting a fish scale gap of a combustion chamber.
Background
In modern high performance aircraft engines, the wall temperature of the combustion chamber is constantly increasing, leading to reduced combustion chamber performance and wall ablation, for which cooling of the combustion chamber has been an important feature. The most widely used flame tube cooling mode at present is air film cooling, namely, the air film layer is cooled to generate heat insulation effect, so that the air consumption is low, and the cooling quantity is high.
Years of experimental researches prove that the flow and cooling efficiency of the fish scale type air film hole is higher than that of the traditional hole type air film hole. In order to ensure a stable flow field, the clearance requirements on the scale-type air film holes are unified. The fish scales of the combustion chamber of the small turbojet engine are punched in a punching mode, and gaps are difficult to unify, so that field technicians are required to adjust the gaps again after punching.
When the on-site assembly personnel adjust the clearance of the fish scales of the combustion chamber, a mode that a plug gauge is plugged into the combustion chamber one by one and then the hammer head is used for knocking and shaping is usually adopted, the strength of each time is hardly guaranteed to be uniform by manual knocking, the effect can be achieved only by repeated hammering for many times, and time and labor are wasted when the combustion chamber with a large number of fish scales is adjusted.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a tool for adjusting the fish scale gap of a combustion chamber, which has the advantages of simple structure, convenient use, good use effect and popularization and application.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a frock in regulation combustion chamber fin clearance, its characterized in that includes the base, there is the mounting panel through support column fixed mounting on the base, provides the adjustment space for the positive and negative tooth lead screw of below, supports the whole upper half of frock simultaneously.
One side fixed mounting has two guide bars on the mounting panel, guide bar top fixed mounting has fixed cross beam, fixed cross beam with vertically rotate between the mounting panel and install the lift lead screw, the lift lead screw is located between two guide bars, the outside slip cover of guide bar is equipped with the lift briquetting, the intermediate position of lift briquetting be provided with be used for with lift lead screw threaded connection screw hole, the both sides of lift briquetting are provided with the through-hole respectively, install the guide bar in the through-hole, inject the lift briquetting through the guide bar, make the lift briquetting only rise or descend along the guide bar, when the lift lead screw rotates, drive the lift briquetting and rise or descend along the guide bar.
Preferably, two groups of sliding grooves are formed in the mounting plate, each group of sliding grooves comprises two sliding grooves which are parallel to each other, a roller seat is slidably mounted in each sliding groove, rollers are rotatably mounted between the roller seats on the same groups of sliding grooves, two bearing fixing seats are fixedly mounted at the bottom end of the mounting plate, a positive and negative tooth screw rod is rotationally connected to the bearing fixing seats, bearings are arranged in the bearing fixing seats and are rotationally connected with the positive and negative tooth screw rod, threaded sliding blocks are respectively connected to two sides of the positive and negative tooth screw rod in a threaded mode, and the threaded sliding blocks are fixedly connected with the roller seats on the same side through connecting bridge plates.
When the positive and negative tooth lead screw rotates, two thread sliding blocks are mutually close to or far away from each other and drive the connecting bridge plate to move, so that the distance between roller seats is changed, the purpose of adjusting the distance between rollers is achieved, and the device is suitable for combustion chambers with different outer diameters.
Preferably, the adjusting nut is fixedly connected to the outer end of the positive and negative tooth screw rod, the adjusting nut is star-shaped, and the positive and negative tooth screw rod is rotated through the adjusting nut, so that the distance between the threaded sliding blocks is convenient to manually adjust, and the distance between the rollers is controlled, so that the device is suitable for combustion chambers with different outer diameters.
Preferably, the lifting screw rod top is fixedly connected with a connecting handle through a connecting shaft, the connecting handle is fixedly connected with a handle, and the connecting handle can be rotated through the handle, so that the lifting screw rod is driven to rotate, and the lifting press block descends on the lifting screw rod, so that the fish scale hole part of the combustion chamber can be pressed downwards according to a determined distance, and the effect of adjusting the fish scale hole gap of the combustion chamber is achieved.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, the distance between the thread sliders is conveniently and manually adjusted by adjusting the nuts to control the distance between the rollers, so that the device is suitable for combustion chambers with different outer diameters, most types of combustion chambers can be matched, the connecting handle can be rotated through the handle to drive the lifting screw rod to rotate, the lifting press block descends on the lifting screw rod, the lifting press block downwards presses the scale hole part of the combustion chamber according to the determined distance, the function of adjusting the scale hole gap of the combustion chamber is achieved, the downward pressing distance of the lifting press block is adjusted by fixing the thread screwing distance to ensure uniform scale gap, the damage of a manual hammer to materials is avoided, and the uniform extrusion force of each time is ensured.
The utility model is described in further detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the present utility model in a use state.
Reference numerals illustrate:
1-a handle; 2-a connecting handle; 3-a fixed cross beam;
4-a guide rod; 5-lifting pressing blocks; 6, a roller;
7-a roller seat; 8-mounting plate; 9-a base;
10-supporting columns; 11-positive and negative tooth screw rods; 12-a bearing mounting seat;
13-adjusting the nut; 14-lifting screw rods; 15-a thread slider;
16-connecting bridge plate.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
As shown in fig. 1 and 2, the utility model provides a tool for adjusting the clearance of a fish scale of a combustion chamber, which comprises a base 9, wherein a mounting plate 8 is fixedly arranged on the base 9 through a support column 10, so as to provide an adjusting space for a lower positive and negative screw rod 11, and simultaneously support the upper half part of the whole tool.
Two guide rods 4 are fixedly arranged on one side of the mounting plate 8, a fixed cross beam 3 is fixedly arranged at the top end of each guide rod 4, a lifting screw rod 14 is vertically and rotatably arranged between the fixed cross beam 3 and the mounting plate 8, the lifting screw rod 14 is positioned between the two guide rods 4, a lifting press block 5 is sleeved outside each guide rod 4 in a sliding mode, threaded holes are formed in the middle position of each lifting press block 5 and are in threaded connection with the corresponding lifting screw rod 14, through holes are formed in two sides of each lifting press block 5 respectively, guide rods 4 are arranged in the through holes, the lifting press blocks 5 are limited through the corresponding guide rods 4, the lifting press blocks 5 can only ascend or descend along the corresponding guide rods 4, and when the lifting screw rods 14 rotate, the lifting press blocks 5 are driven to ascend or descend along the corresponding guide rods 4.
In this embodiment, be provided with two sets of spouts on the mounting panel 8, every spout of group includes two spouts that are parallel to each other, slidable mounting has roller seat 7 in the spout, on the same set of spout rotate between the roller seat 7 and install roller 6, mounting panel 8 bottom fixed mounting has two bearing fixing bases 12, bearing fixing base 12 internal rotation is connected with positive and negative tooth lead screw 11, is provided with the bearing in the bearing fixing base 12, and the bearing rotates with positive and negative tooth lead screw 11 to be connected, both sides respectively threaded connection has screw thread slider 15 on positive and negative tooth lead screw 11, screw thread slider 15 is through connecting bridge 16 and homonymy roller seat 7 fixed connection.
When the front and back tooth screw rods 11 rotate, the two thread sliding blocks 15 are mutually close to or far away from each other to drive the connecting bridge plate 16 to move, so that the distance between the roller seats 7 is changed, the purpose of adjusting the distance between the rollers 6 is achieved, and the device is suitable for combustion chambers with different outer diameters.
In this embodiment, positive and negative tooth lead screw 11 outer end fixedly connected with adjusting nut 13, adjusting nut 13 appearance is the star, rotates positive and negative tooth lead screw 11 through adjusting nut 13, is convenient for manually adjust the distance between the screw slider 15 to distance between the control roller 6 is in order to be applicable to the combustion chamber of different external diameters size.
In this embodiment, lift lead screw 14 top is through connecting axle fixedly connected with connective handle 2, fixedly connected with handle 1 on the connective handle 2, can rotate connective handle 2 through handle 1 to drive lift lead screw 14 and rotate, lift briquetting 5 descend on lift lead screw 14, thereby can compress tightly the fish scale hole position of combustion chamber downwards according to the distance of determining, in order to play the effect of adjusting the fish scale hole clearance of combustion chamber.
In use, as shown in figure 2, a combustion chamber with fish scales is placed between two rollers 6.
The positive and negative tooth screw rod 11 is rotated through the adjusting nut 13, the two threaded sliding blocks 15 are mutually close to or far away from each other, the connecting bridge plate 16 is driven to move, the distance between the roller seats 7 is further changed, and the aim of adjusting the distance between the rollers 6 is fulfilled, so that the outer diameter of the combustion chamber is adapted.
The connecting handle 2 can be rotated through the handle 1, so that the lifting screw rod 14 is driven to rotate, the lifting press block 5 descends on the lifting screw rod 14, and the lifting press block 5 downwards presses the fish scale hole part of the combustion chamber according to a determined distance, so that the effect of adjusting the fish scale hole gap of the combustion chamber is achieved.
Meanwhile, the combustion chamber fish scales can be adjusted in groups by rotating the roller 6, so that the working efficiency is improved.
The tooling is currently applicable to the situation that the gap of the stamped fish scales is small, can meet the gap which needs to be adjusted for the most part, and is enough to meet the field technological requirements.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model. Any simple modification, variation and equivalent variation of the above embodiments according to the technical substance of the utility model still fall within the scope of the technical solution of the utility model.
Claims (4)
1. The utility model provides a frock in regulation combustion chamber fish scale clearance, its characterized in that, including base (9), there is mounting panel (8) through support column (10) fixed mounting on base (9), one side fixed mounting has two guide bars (4) on mounting panel (8), fixed beam (3) are installed to guide bar (4) top fixed mounting, fixed beam (3) with install lift lead screw (14) vertically between mounting panel (8), outside slide sleeve of guide bar (4) is equipped with lift briquetting (5), lift briquetting (5) with lift lead screw (14) threaded connection.
2. The tool for adjusting the fish scale gap of the combustion chamber according to claim 1, wherein two groups of sliding grooves are formed in the mounting plate (8), each group of sliding grooves comprises two sliding grooves which are parallel to each other, a roller seat (7) is slidably installed in each sliding groove, a roller (6) is rotatably installed between the roller seats (7) on the same group of sliding grooves, two bearing fixing seats (12) are fixedly installed at the bottom end of the mounting plate (8), a positive and negative tooth screw rod (11) is rotationally connected to the bearing fixing seats (12), threaded sliding blocks (15) are respectively connected to two sides of the positive and negative tooth screw rod (11) in a threaded mode, and the threaded sliding blocks (15) are fixedly connected with the roller seats (7) on the same side through connecting bridge plates (16).
3. The tool for adjusting the fish scale gap of the combustion chamber according to claim 2, wherein an adjusting nut (13) is fixedly connected to the outer end of the front and back screw rod (11), and the adjusting nut (13) is star-shaped.
4. The tool for adjusting the fish scale gap of the combustion chamber according to claim 1, wherein the top end of the lifting screw rod (14) is fixedly connected with a connecting handle (2) through a connecting shaft, and the connecting handle (2) is fixedly connected with a handle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322096755.3U CN220707407U (en) | 2023-08-07 | 2023-08-07 | Frock in regulation combustion chamber fin clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322096755.3U CN220707407U (en) | 2023-08-07 | 2023-08-07 | Frock in regulation combustion chamber fin clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220707407U true CN220707407U (en) | 2024-04-02 |
Family
ID=90435193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322096755.3U Active CN220707407U (en) | 2023-08-07 | 2023-08-07 | Frock in regulation combustion chamber fin clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220707407U (en) |
-
2023
- 2023-08-07 CN CN202322096755.3U patent/CN220707407U/en active Active
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