Tool for disassembling and assembling lifting valve assembly of air valve of starter

Abstract

The utility model discloses a tool for disassembling and assembling a lifting valve assembly of an air valve of a starter, which comprises a base, a lifting valve assembly, a lifting valve assembly, a lifting valve assembly and a lifting valve assembly, and is characterized in that a connecting groove is formed in the center of the top of the base; the number of the supporting rods is two; the first supporting rod is arranged on one side of the connecting groove, and one end is connected with the top end of the base; the second supporting rod is arranged at the end, away from the first supporting rod, of the connecting groove, and the second supporting rod is connected with the top end of the base; the sliding block assembly is arranged at the top end of the supporting rod in a sleeving mode, and the sliding block assembly can move up and down on the supporting rod. The spring fixer of the lift valve can be easily detached by pressing the sliding block assembly, and the spring fixer detaching device is simple in structure and easy to use and saves time cost.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly and disassembly of air valves of starters of civil aircraft, in particular to a tool for disassembling and assembling a lifting valve component of an air valve of a starter. Background Art

[0002] The starter air valve controls air flow to the starter. When the solenoid is energized, chamber A fills more slowly than chamber B. This creates a pressure differential across the diaphragm, forcing the control servovalve toward the closed position. As the pressure in chamber A begins to equalize with the pressure in chamber B, the servovalve begins to open and allows additional air to enter the actuator opening chamber, ultimately causing the valve plate to open.

[0003] During disassembly, the spring in the poppet valve is loaded, and the valve stem is in the groove of the spring retainer. The spring must be compressed and released from the spring retainer, and then the valve stem must be removed from the groove to protect the components from damage. However, the complex structure of the general-purpose tools currently available on the market makes disassembly of the starter air valve poppet valve assembly inconvenient, thus failing to meet operational requirements and effectively preventing damage to components during assembly and disassembly.

[0004] Therefore, how to ensure that the components are not damaged when the poppet valve is disassembled has become an urgent problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a tool for disassembling and assembling a starter air valve lift valve assembly, thereby solving the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] A tool for disassembling and assembling a starter air valve lift assembly, comprising:

[0008] The base has a connecting groove at the center of the top;

[0009] There are two support rods;

[0010] A first support rod is provided on one side of the connecting groove, and one end of the first support rod is connected to the top end of the base;

[0011] A second support rod is provided at an end of the connection groove away from the first support rod, and the second support rod is connected to the top end of the base;

[0012] The slider assembly is sleeved on the top end of the support rod, and the slider assembly can move up and down on the support rod.

[0013] In some specific embodiments, the axis of the first support rod and the axis of the second support rod are parallel to each other.

[0014] In some specific embodiments, the slider assembly includes:

[0015] There are two sliding blocks in an "I" shape, with open slots at both ends. A limiting hole is set at the center of the sliding block, and the sliding block is sleeved on the support rod through the limiting hole.

[0016] In some specific embodiments, first pin holes are further formed on both sides of the limiting hole of the sliding block, and the first pin holes pass through the sliding block.

[0017] In some specific embodiments, there are two layering strips, and a second pin hole is respectively opened at both ends of the layering strips;

[0018] The first pressing strip is arranged in parallel with the second pressing strip.

[0019] In some specific embodiments, one end of the first pressure strip is disposed in the first opening slot of the first sliding block, and the end away from the first sliding block is disposed in the third opening slot of the second sliding block;

[0020] One end of the second pressure strip is arranged in the second opening groove of the first sliding block, and the other end away from the first sliding block is arranged in the fourth opening groove of the second sliding block.

[0021] In some specific embodiments, it further includes:

[0022] Pins; there are multiple pins, each of which is "T" shaped and is used to be inserted into the first pin hole and the second pin hole.

[0023] In some specific embodiments, the first layer and the second layer are respectively provided with pressing sheets in the length direction of the body;

[0024] The two pressing sheets are arranged opposite to each other;

[0025] The tablets are wedge-shaped.

[0026] In some specific embodiments, the further comprising: a poppet valve assembly;

[0027] The poppet valve assembly includes: a guide, a spring, a valve stem, and a spring retainer;

[0028] The valve stem is arranged at one end of the guide and connected to the guide;

[0029] The spring sleeve is arranged on the end of the guide away from the valve stem;

[0030] The spring fixer is arranged at one end of the spring away from the guide and is connected to the spring.

[0031] In some embodiments, the diameter of the spring retainer is greater than the distance between the two pressing pieces.

[0032] The beneficial effects of the utility model are:

[0033] The utility model discloses a disassembly and assembly tool for a starter air valve poppet assembly, comprising: a base having a connection groove at the center of its top; two support rods; a first support rod disposed on one side of the connection groove, one end of which is connected to the top of the base; a second support rod disposed at an end of the connection groove away from the first support rod, the second support rod being connected to the top of the base; and a slider assembly sleeved on the top of the support rod, the slider assembly being able to move up and down on the support rod. The utility model can easily remove the spring retainer of the poppet valve by pressing the slider assembly. The utility model has a simple structure and is easy to use, saving time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the assembly structure of the utility model;

[0035] Figure 2 It is a top view of the utility model;

[0036] Figure 3 It is a side view of the utility model;

[0037] Figure 4 It is a side view of the base of the utility model;

[0038] Figure 5 This is a top view of the base of the utility model;

[0039] Figure 6 It is a side view of the sliding block of the utility model;

[0040] Figure 7 It is a top view of the sliding block of the utility model;

[0041] Figure 8 It is a side view of the layering strip of the present utility model;

[0042] Figure 9 It is a top view of the layering strip of the present utility model;

[0043] Figure 10 It is a side view of the pin of the utility model;

[0044] Figure 11 It is a top view of the pin of the utility model;

[0045] Figure 12 It is an assembly diagram of the lift valve assembly of the present utility model.

[0046] In the accompanying drawings, 100, base; 110, first support rod; 111, second support rod; 120, pin; 130, pressing plate; 140, connecting groove; 150, pressure strip; 160, sliding block; 170, limiting hole; 180, first pin hole; 190, guide; 200, spring; 210, valve stem; 220, spring retainer. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] Reference Figures 1 to 12 The tool shown is used for disassembling and assembling the starter air valve lift valve assembly, comprising a base 100, the center of which is provided with a connecting groove 140. There are two support rods.

[0049] The first support rod 110 is provided on one side of the connection groove 140 and one end of the first support rod 110 is connected to the top of the base 100;

[0050] The second support rod 111 is provided at an end of the connection groove 140 away from the first support rod 110 , and the second support rod 111 is connected to the top end of the base 100 ;

[0051] The slider assembly is sleeved on the top end of the support rod, and the slider assembly can move up and down on the support rod.

[0052] This utility model uses 304 stainless steel. Due to the contact force during assembly, the material has high strength, high hardness, wear resistance, and pressure resistance. It will not be seriously deformed by excessive external force when it is in contact with each other. It can well meet the processing size requirements and will not damage the components when it is in contact with the components.

[0053] In some specific embodiments, the axis of the first support rod 110 and the axis of the second support rod 111 are parallel to each other.

[0054] In some specific embodiments, the slider assembly includes two sliding blocks 160 in the shape of an "I", with open grooves at both ends. A limiting hole 170 is set at the center position of the sliding block 160, and the sliding block 160 is mounted on the support rod through the limiting hole 170.

[0055] In some specific embodiments, first pin holes 180 are further formed on both sides of the limiting hole 170 of the sliding block 160 , and the first pin holes 180 pass through the sliding block 160 .

[0056] In some specific embodiments, there are two pressure strips 150, and a second pin hole is respectively opened at both ends of the pressure strip 150;

[0057] The first pressing strip 150 is arranged in parallel with the second pressing strip 150 .

[0058] In some specific embodiments, one end of the first pressing strip 150 is disposed in the first opening slot of the first sliding block 160 , and the other end away from the first sliding block 160 is disposed in the third opening slot of the second sliding block 160 .

[0059] One end of the second pressing strip 150 is disposed in the second opening slot of the first sliding block 160 , and the other end away from the first sliding block 160 is disposed in the fourth opening slot of the second sliding block 160 .

[0060] In some specific embodiments, a pin shaft 120 is further included. There are multiple pin shafts 120, and the pin shafts 120 are T-shaped and are used to be inserted into the first pin hole 180 and the second pin hole.

[0061] In some specific embodiments, the first pressure strip 150 and the second pressure strip 150 are respectively provided with a pressing sheet 130 in the length direction of the body;

[0062] The two pressing pieces 130 are arranged opposite to each other and are wedge-shaped.

[0063] In some embodiments, further comprising a poppet valve assembly;

[0064] The poppet valve assembly includes a guide 190, a spring 200, a valve stem 210, and a spring retainer 220. The valve stem 210 is disposed at one end of the guide 190 and is connected to the guide 190;

[0065] The spring 200 is sleeved on the end of the guide 190 away from the valve stem 210;

[0066] The spring holder 220 is disposed at one end of the spring 200 away from the guide 190 and is connected to the spring 200 .

[0067] In some embodiments, the diameter of the spring retainer 220 is greater than the distance between the two pressing pieces 130 .

[0068] Working principle:

[0069] After installing the valve stem into the poppet valve guide, place it in the connecting groove of the base of the tooling, install the spring and spring retainer at the other end of the poppet valve guide, pull out one of the pins, so that one end of one of the pressure strips is moved out of the open groove, install the poppet valve according to the predetermined requirements, and press the pressure piece of the other pressure strip on the upper edge of the spring. At this time, restore the removed pressure strip to its original shape and insert the pin. At this time, the pressure pieces of the two pressure strips can be pressed on the upper edge of the spring. At this time, the spring retainer is at the upper end of the pressure strip. At this time, press the slider assembly downward, and the slider assembly moves downward on the support rod, and the spring retainer can be assembled or disassembled.

[0070] By adopting the above technical solution disclosed in the utility model, the following beneficial effects are obtained:

[0071] The utility model discloses a disassembly and assembly tool for a starter air valve poppet assembly, comprising: a base 100, with a connecting groove 140 provided at the center of its top; two support rods; a first support rod 110, disposed on one side of the connecting groove 140, one end of which is connected to the top of the base 100; a second support rod 111, disposed at an end of the connecting groove 140 away from the first support rod 110, the second support rod 111 being connected to the top of the base 100; and a slider assembly, sleeved on the top of the support rod, capable of moving up and down on the support rod. By pressing the slider assembly, the spring 200 retainer of the poppet valve can be easily removed. The utility model has a simple structure and is easy to use, saving time and cost.

[0072] (1) This device obtains the tooling processing data used in the design after rigorous measurement and calculation of the components. This device is used for machining stainless steel.

[0073] (2) During the disassembly process, when using general tools to disassemble the poppet valve assembly, the spring 200 or the spring 200 retainer may be damaged or scratched. This tool can effectively reduce the damage.

[0074] (3) The disassembly and assembly tooling for the starter air valve lift valve assembly is simple in structure and easy to use, which also improves the reliability of assembling the actuator and significantly saves time and cost.

[0075] This utility model patent solves the problem that the lift valve assembly is inconvenient to disassemble and assemble when the manual does not provide clear tools and there are no tools that meet the requirements on the market, thereby ensuring the reliability of the components.

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A tool for disassembling and assembling a starter air valve lift valve assembly, characterized in that: include: The base has a connecting groove at the center of the top; There are two support rods; The first support rod is arranged on one side of the connecting groove, and one end of the support rod is connected to the top end of the base; The second support rod is arranged at an end of the connecting groove away from the first support rod, and the second support rod is connected to the top end of the base; The slider assembly is sleeved on the top end of the support rod, and the slider assembly can move up and down on the support rod.

2. The disassembly and assembly tool for the starter air valve lift valve assembly according to claim 1, characterized in that: The axis of the first support rod and the axis of the second support rod are parallel to each other.

3. The disassembly and assembly tool for the starter air valve lift valve assembly according to claim 2, characterized in that: The slider assembly includes: There are two sliding blocks in an "I" shape, with open slots at both ends. A limiting hole is set at the center of the sliding block, and the sliding block is sleeved on the support rod through the limiting hole.

4. The disassembly and assembly tool for the starter air valve lift valve assembly according to claim 3, characterized in that: First pin holes are further provided on both sides of the limiting hole of the sliding block, and the first pin holes pass through the sliding block.

5. The disassembly and assembly tool for the starter air valve lift valve assembly according to claim 4, characterized in that: There are two pressure strips, and both ends of the pressure strips are respectively provided with a second pin hole; The first pressing strip is arranged in parallel with the second pressing strip.

6. The disassembly and assembly tool for the starter air valve lift valve assembly according to claim 5, characterized in that: One end of the first pressure strip is arranged in the first opening slot of the first sliding block, and the end away from the first sliding block is arranged in the third opening slot of the second sliding block; One end of the second pressure strip is arranged in the second opening groove of the first sliding block, and the end away from the first sliding block is arranged in the fourth opening groove of the second sliding block.

7. The disassembly and assembly tool for the starter air valve lift valve assembly according to claim 6, characterized in that: Also includes: pin; the pin is multiple, the pin is "T" shaped, for being inserted into the first pin hole and the second pin hole.

8. The disassembly and assembly tool for the starter air valve lift valve assembly according to claim 7, characterized in that: The first layer and the second layer are respectively provided with pressing sheets in the length direction; The two pressing sheets are arranged opposite to each other; The pressed tablet is in a "wedge" shape.

9. The disassembly and assembly tool for the starter air valve lift valve assembly according to claim 8, characterized in that: Also included: a poppet valve assembly; The poppet valve assembly includes: a guide, a spring, a valve stem, and a spring retainer; The valve stem is arranged at one end of the guide and connected to the guide; The spring is sleeved on one end of the guide away from the valve stem; The spring fixer is arranged at one end of the spring away from the guide and is connected to the spring.

10. The disassembly and assembly tool for the starter air valve lift valve assembly according to claim 9, characterized in that: The diameter of the spring holder is greater than the distance between the two pressing pieces.

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