Aviation steering engine control valve group

Abstract

The invention belongs to the technical field of control valve bank design, and particularly relates to an aviation steering engine control valve bank. The aviation steering engine control valve bank mainly comprises a control valve bank body and a supporting device used for supporting and clamping the control valve bank body. The supporting device comprises a height adjusting device, an angle adjusting table and a clamping device, a limiting cylinder is arranged on the height adjusting device, a first limiting circular groove is formed in the limiting cylinder, the angle adjusting table comprises a supporting plate, the supporting plate is located above the limiting cylinder, and a sliding plate is connected to the bottom of the supporting plate; the sliding plate can extend into the first limiting circular groove from an opening in the upper surface of the limiting cylinder and is in sliding connection with the bottom of the first limiting circular groove, the clamping device comprises a lifting table arranged on the height adjusting device, and a reciprocating lead screw is arranged on the lifting table; the reciprocating lead screw drives the clamping plate to clamp the control valve bank body arranged on the angle adjusting table. The control valve bank main body can be driven to automatically align the angle, and the mounting efficiency of the control valve bank is improved.

Description

Technical Field

[0001] This application belongs to the technical field of control valve group design, and particularly relates to an aviation servo control valve group. Background Art

[0002] The aviation servo control valve group is connected between the oil pump variable mechanism and the control oil circuit, and is used to realize functions such as variable control and redundant switching of the oil pump. For example, a special control valve for a servo as disclosed in the Chinese utility model patent with the application number 202322176217.5, the specific content of which is: placing the control valve body above the cross plate frame. At this time, the weight above the movable cavity is buffered by several buffer springs below the support bottom plate and the first rubber pad above the support bottom plate. Then, by rotating the second turning handle, the bidirectional lead screw rotates, driving two lead screw sleeves and the upper support vertical plate above to approach or move away from each other, so that the clamping position can be adjusted according to the size of the control valve body. When the support vertical plate is adjusted to the appropriate position, the appropriate clamping position can be selected by the up and down movement of the slider inside the longitudinal chute, and by turning the fourth turning handle, the first screw rod rotates, driving the clamping plate to move, clamping the control valve body to make it stably placed, and protecting it through the second rubber layer. This control valve group has the following technical problems:

[0003] When fixedly installing the aviation servo control valve group, the placement angle of the aviation servo control valve group needs to be completely fitted with the plate body of the clamping plate. Otherwise, it will be difficult for the clamping plate to clamp the aviation servo control valve group, and when the placement angle deviates, it will also affect the installation of the aviation servo control valve group. Summary of the Invention

[0004] To solve the above problems, this application provides an aviation servo control valve group, which mainly includes a control valve group main body and a support device for supporting and clamping the control valve group main body;

[0005] The support device includes a height adjustment device, an angle adjustment table, and a clamping device. A limit cylinder is provided on the height adjustment device, and a first limit circular groove with a communicating upper surface is provided inside the limit cylinder. The angle adjustment table includes a support plate, the support plate is located above the limit cylinder, and a slide plate is connected to the bottom of the support plate. The slide plate can extend into the first limit circular groove from the opening on the upper surface of the limit cylinder and is slidably connected to the bottom of the first limit circular groove. The clamping device includes lifting platforms provided on the height adjustment device. There are two lifting platforms, which are respectively located on both sides above the angle adjustment table. The lifting platform has a threaded hole, and a reciprocating lead screw passes through the threaded hole and is connected to a clamping plate, and the control valve group main body arranged on the angle adjustment table is clamped by the clamping plate.

[0006] Preferably, the height adjustment device includes a bottom plate and a fixing plate supported by a telescopic rod and a cylinder. The fixing plate is driven by the cylinder to move up and down. The limiting cylinder and the clamping device are both arranged above the fixing plate.

[0007] Preferably, universal wheels are provided at the bottom of the bottom plate.

[0008] Preferably, a push rod is provided on the bottom plate.

[0009] Preferably, a plurality of ball sockets are provided at the bottom of the sliding plate, and balls are adaptively installed. The sliding plate is slidably connected to the bottom of the first limiting circular groove through the balls.

[0010] Preferably, the upper surface of the limiting cylinder communicates with the first limiting circular groove through a second limiting circular groove. The inner diameter of the second limiting circular groove is smaller than that of the first limiting circular groove and smaller than the diameter of the sliding plate. The sliding plate is connected to the support plate through a connecting column, and the connecting column is located in the second limiting circular groove.

[0011] Preferably, the lower end of the lifting platform is connected with a column, and the column is sleeved in a sleeve fixed on the height adjustment device. The column has a plurality of positioning holes along the axial direction, and the sleeve has a positioning rod radially penetrating through it. When the positioning rod passes through different positioning holes on the column, the extension amount of the column relative to the sleeve can be adjusted.

[0012] Preferably, a handle is provided at the end of the positioning rod.

[0013] Preferably, two through holes are further respectively provided on both sides of the threaded hole on the lifting platform for passing through the limiting rod. One end of the limiting rod is connected to the clamping plate, and a convex block is provided at the other end.

[0014] Preferably, one end of the reciprocating lead screw is rotatably connected to the clamping plate, and a turntable is provided at the other end, and a handle is provided on the turntable.

[0015] This application can drive the main body of the control valve group to automatically adjust the angle, improving the installation efficiency of the control valve group. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of a preferred embodiment of the aviation servo control valve group of this application.

[0017] Figure 2 is this application Figure 1 a schematic diagram of the structure of the support device of the illustrated embodiment.

[0018] Figure 3 is this application Figure 1 a schematic diagram of the structure of the height adjustment device of the illustrated embodiment.

[0019] Figure 4 is this application Figure 1Schematic structural diagram of the angle adjustment table of the illustrated embodiment.

[0020] Figure 5 This is an application Figure 1 Schematic installation diagram of the adjustment table and the limit cylinder of the illustrated embodiment.

[0021] Figure 6 This is an application Figure 1 Schematic structural diagram of the clamping device of the illustrated embodiment.

[0022] Among them, 10 - control valve group main body, 1 - support device, 100 - height adjustment device, 110 - fixing plate, 120 - limit cylinder, 121 - first limit circular groove, 122 - second limit circular groove, 130 - cylinder, 140 - telescopic rod, 150 - bottom plate, 151 - universal wheel, 152 - push rod, 200 - angle adjustment table, 210 - support plate, 211 - connecting column, 220 - sliding plate, 221 - ball, 300 - clamping device, 310 - clamping plate, 311 - limit rod, 320 - reciprocating lead screw, 321 - turntable, 322 - handle, 330 - lifting table, 331 - column, 332 - positioning hole, 340 - sleeve, 350 - positioning rod, 351 - handle. Detailed implementation manners

[0023] To make the purpose, technical solutions, and advantages of the implementation of this application clearer, the technical solutions in the implementation manners of this application will be described in more detail below with reference to the accompanying drawings in the implementation manners of this application. In the accompanying drawings, the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The described implementation manners are part of the implementation manners of this application, not all of them. The implementation manners described below with reference to the accompanying drawings are exemplary and are intended to explain this application and should not be construed as a limitation of this application. Based on the implementation manners in this application, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application. The implementation manners of this application will be described in detail below with reference to the accompanying drawings.

[0024] This application provides an aviation servo control valve group, as Figure 1 shown, mainly including a control valve group main body 10 and a support device 1 for supporting and clamping the control valve group main body 10.

[0025] Refer to Figure 2 , the support device 1 includes a height adjustment device 100, an angle adjustment table 200, and a clamping device 300. The angle adjustment table 200 and the clamping device 300 are both located on the height adjustment device 100. The control valve group main body 10 is arranged on the angle adjustment table 200 and is clamped by the clamping devices 300 on both sides.

[0026] Reference Figure 3 A limit cylinder 120 is provided on the height adjustment device 100. A first limit circular groove 121 with a communicating upper surface is provided inside the limit cylinder 120. Reference Figure 4 The angle adjustment table 200 includes a support plate 210. The support plate 210 is located above the limit cylinder 120, and a sliding plate 220 is connected to the bottom of the support plate 210. The sliding plate 220 can extend into the first limit circular groove 121 from the opening on the upper surface of the limit cylinder 120, as Figure 5 shown, and is slidably connected to the bottom of the first limit circular groove 121. With this device, when the control valve group main body 10 is installed on the angle adjustment table 200, it can rotate with the angle adjustment table 200.

[0027] Reference Figure 2 and Figure 6 The clamping device 300 includes a lifting table 330 provided on the height adjustment device 100. There are two lifting tables 330, which are respectively located on both sides above the angle adjustment table 200. The lifting table 330 has threaded holes. After a reciprocating lead screw 320 passes through the threaded holes, a clamping plate 310 is connected. The control valve group main body 10 provided on the angle adjustment table 200 is clamped by the clamping plate 310.

[0028] In this application, when the placement angle of the control valve group main body 1 is inclined, when the two clamping plates 310 clamp the control valve group main body 1, the angle adjustment table 200 can drive the control valve group main body 1 to adaptively adjust the angle. This method improves the installation efficiency of the control valve group.

[0029] In some alternative embodiments, Reference Figure 3 the height adjustment device 100 includes a bottom plate 150 and a fixing plate 110 supported by a telescopic rod 140 and a cylinder 130. The fixing plate 110 is driven by the cylinder 130 to move up and down. The limit cylinder 120 and the clamping device 300 are both provided above the fixing plate 110.

[0030] In this embodiment, a cylinder 130 for adjusting the installation height of the control valve group main body 10 is installed at the lower end of the height adjustment device 100. When installing the control valve group main body 10, by starting the cylinder 130, the height of the control valve group main body 10 is adjusted to make the control valve group main body 10 close to the installation position.

[0031] In some alternative embodiments, Reference Figure 3 universal wheels 151 are provided at the bottom of the bottom plate 150. In some alternative embodiments, a push rod 152 is provided on the bottom plate 150.

[0032] In the above embodiments, a plurality of universal wheels 151 for facilitating the movement of the height adjustment device 100 are installed at the bottom of the bottom plate 150, and a push rod 152 for facilitating the pushing of the height adjustment device 100 is fixedly installed at the right end of the bottom plate 150. When the control valve group main body 10 is placed on the upper end of the adjustment table 200, the height adjustment device 100 can be pushed through the cooperation of the push rod 152 and the universal wheels 151 to move the control valve group main body 10 to the installation position, and then the installation height is adjusted by the cylinder 130.

[0033] In some alternative embodiments, referring to Figure 4 and Figure 5 , a plurality of ball sockets are provided at the bottom of the sliding plate 220, and ball bearings 221 are adaptively installed. The sliding plate 220 is slidably connected to the bottom of the first limiting circular groove 121 through the ball bearings 221.

[0034] In this embodiment, a plurality of ball bearings 221 are movably installed at the bottom of the sliding plate 220, and the ball bearings 221 slide synchronously in the cavity of the first limiting circular groove 121 to ensure the smooth rotation of the sliding plate 220.

[0035] In some alternative embodiments, the upper surface of the limiting cylinder 120 communicates with the first limiting circular groove 121 through the second limiting circular groove 122. The inner diameter of the second limiting circular groove 122 is smaller than that of the first limiting circular groove 121 and smaller than the diameter of the sliding plate 220. The sliding plate 220 is connected to the support plate 210 through the connecting column 211, and the connecting column 211 is located in the second limiting circular groove 122.

[0036] This embodiment mainly prevents the angle adjustment table 200 from sliding out of the upper end of the limiting cylinder 120. For this purpose, an angle adjustment table 200 with large sizes at both ends and a small size in the middle is provided. Corresponding circular grooves with different sizes are opened on the limiting cylinder 120. The first limiting circular groove 121 at the bottom has a larger size, and the second limiting circular groove 122 at the top has a smaller size. The connecting column 211 in the middle of the angle adjustment table 200 is located in the second limiting circular groove 122, and the sliding plate 220 at the bottom of the angle adjustment table 200 is located in the first limiting circular groove 121, so as to ensure that the sliding plate 220 of the angle adjustment table 200 can only rotate in the first limiting circular groove 121 or move slightly in the radial direction, but cannot axially move out. During installation, the sliding plate 220 and the connecting column 211 are installed as a whole from the bottom opening of the limiting cylinder 120 into the first limiting circular groove 121. The connecting column 211 passes through the second limiting circular groove 122 and then connects to the support plate 210, and then the whole is fixed to the fixing plate 110 at the top of the height adjustment device 100.

[0037] In some alternative embodiments, referring to Figure 6, a column 331 is connected to the lower end of the lifting platform 330. The column 331 is sleeved in a sleeve 340 fixed to the height adjustment device 100. The column 331 has a plurality of positioning holes 332 along the axial direction. The sleeve 340 has a positioning rod 350 radially penetrating therethrough. When the positioning rod 350 passes through different positioning holes 332 on the column 331, the protruding amount of the column 331 relative to the sleeve 340 can be adjusted. In some alternative embodiments, the end of the positioning rod 350 has a handle 351.

[0038] In the above embodiment, a column 331 and a matching sleeve 340 for adjusting the clamping height of the clamping plate 310 in cooperation with the lifting platform 330 are installed at the lower end of the lifting platform 330. A cavity for the positioning rod 350 to pass through is provided at the upper end of the sleeve 340. A handle 351 is fixedly installed at one end of the positioning rod 350. By inserting the positioning rod 350 into the cavities of different positioning holes 332, the clamping height of the clamping plate 310 is adjusted. After the adjustment of the clamping height of the clamping plate 310 is completed, the positioning rod 350 is inserted into the cavity of the positioning hole 332 through the sleeve 340 to complete the positioning of the lifting platform 330, and further complete the fixing of the clamping height of the clamping plate 310.

[0039] In some alternative embodiments, the lifting platform 330 also has a through hole on each side of the threaded hole for passing through a limiting rod 311. One end of the limiting rod 311 is connected to the clamping plate 310, and the other end is provided with a convex block.

[0040] In this embodiment, the movement direction of the clamping plate 310 is restricted by two limiting rods 311, preventing the clamping plate 310 from rotating randomly when only connected by the reciprocating lead screw 320.

[0041] In some alternative embodiments, one end of the reciprocating lead screw 320 is rotatably connected to the clamping plate 310, and a turntable 321 is provided at the other end. A handle 322 is provided on the turntable 321.

[0042] In this embodiment, the end of the reciprocating lead screw 320 can be connected to the clamping plate 310 through a bearing, ensuring that the clamping plate 310 does not rotate with the reciprocating lead screw 320 when it rotates. The other end of the reciprocating lead screw 320 realizes the manual control of the reciprocating lead screw 320 through the turntable 321 and the handle 322, improving the installation efficiency of the clamping device.

[0043] The above is only the specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An aviation servo control valve group, characterized in that, It includes a control valve group main body (10) and a support device (1) for supporting and clamping the control valve group main body (10); The support device (1) includes a height adjustment device (100), an angle adjustment table (200) and a clamping device (300). A limit cylinder (120) is provided on the height adjustment device (100). A first limit circular groove (121) with a communicating upper surface is provided inside the limit cylinder (120). The angle adjustment table (200) includes a support plate (210). The support plate (210) is located above the limit cylinder (120), and a sliding plate (220) is connected to the bottom of the support plate (210). The sliding plate (220) can extend into the first limit circular groove (121) from the opening on the upper surface of the limit cylinder (120) and is slidably connected to the bottom of the first limit circular groove (121). The clamping device (300) includes a lifting table (330) provided on the height adjustment device (100). There are two lifting tables (330), which are respectively located on both sides above the angle adjustment table (200). The lifting table (330) has a threaded hole. After a reciprocating lead screw (320) passes through the threaded hole, a clamping plate (310) is connected. The control valve group main body (10) provided on the angle adjustment table (200) is clamped by the clamping plate (310).

2. The aviation servo control valve group according to claim 1, characterized in that The height adjustment device (100) includes a bottom plate (150) and a fixing plate (110) supported by a telescopic rod (140) and a cylinder (130). The fixing plate (110) is driven by the cylinder (130) to move up and down. The limit cylinder (120) and the clamping device (300) are both provided above the fixing plate (110).

3. The aviation servo control valve group according to claim 2, wherein Universal wheels (151) are provided at the bottom of the bottom plate (150).

4. The aviation servo control valve group according to claim 2, wherein, A push rod (152) is provided on the bottom plate (150).

5. The aviation servo control valve group according to claim 1, characterized in that Multiple ball sockets are provided at the bottom of the sliding plate (220), and ball bearings (221) are adaptively installed. The sliding plate (220) is slidably connected to the bottom of the first limit circular groove (121) through the ball bearings (221).

6. The aviation servo control valve group according to claim 1, wherein, The upper surface of the limit cylinder (120) communicates with the first limit circular groove (121) through a second limit circular groove (122). The inner diameter of the second limit circular groove (122) is smaller than that of the first limit circular groove (121) and smaller than the diameter of the sliding plate (220). The sliding plate (220) is connected to the support plate (210) through a connecting column (211). The connecting column (211) is located in the second limit circular groove (122).

7. The aviation servo control valve group according to claim 1, characterized in that, A column (331) is connected to the lower end of the lifting table (330). The column (331) is sleeved in a sleeve (340) fixed on the height adjustment device (100). The column (331) has a plurality of positioning holes (332) along the axis. A positioning rod (350) radially penetrates through the sleeve (340). When the positioning rod (350) passes through different positioning holes (332) on the column (331), the extension amount of the column (331) relative to the sleeve (340) can be adjusted.

8. The aviation servo control valve group according to claim 7, wherein, A handle (351) is provided at the end of the positioning rod (350).

9. The aviation servo control valve group according to claim 1, characterized in that, On both sides of the threaded hole on the lifting table (330), there is also a through hole respectively for passing through the limit rod (311). One end of the limit rod (311) is connected to the clamping plate (310), and the other end is provided with a convex block.

10. The aviation servo control valve group according to claim 1, characterized in that, One end of the reciprocating lead screw (320) is rotatably connected to the clamping plate (310), and the other end is provided with a turntable (321). A handle (322) is arranged on the turntable (321).

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