阅读说明：本技术 一种可调节的胶管阀气缸支撑装置 (Adjustable rubber tube valve cylinder supporting device ) 是由 王京伟 惠维维 姚锋涛 魏文飞 边永超 吕端 于 2021-01-02 设计创作，主要内容包括：一种可调节的胶管阀气缸支撑装置,螺母位于支座内,并使该螺母的上端面与支座的上端面平齐。螺杆装入该螺母内。手轮套装在该螺杆上,并固定在该螺母的上端面。所述导向板位于所述套筒内,并固定在所述螺杆的下端面。在该螺杆的上端面固定有轮叉；滚轮通过内轴安装在该轮叉上,并通过限位片限制滚轮的轴向移动。本发明通过滚轮支撑胶管阀气缸,消除了现有技术中胶管阀气缸受重力使阀杆变形的现象,提高了该胶管阀的使用寿命,降低了生产成本。(An adjustable rubber tube valve cylinder supporting device is characterized in that a nut is positioned in a support, and the upper end face of the nut is flush with the upper end face of the support. The screw rod is arranged in the nut. The hand wheel is sleeved on the screw rod and fixed on the upper end face of the nut. The guide plate is positioned in the sleeve and fixed on the lower end face of the screw rod. A wheel fork is fixed on the upper end surface of the screw rod; the roller is arranged on the wheel fork through the inner shaft and limits the axial movement of the roller through the limiting sheet. The rubber tube valve cylinder is supported by the roller, so that the phenomenon that the valve rod is deformed by the gravity of the rubber tube valve cylinder in the prior art is eliminated, the service life of the rubber tube valve is prolonged, and the production cost is reduced.)

1. An adjustable rubber tube valve cylinder supporting device is characterized by comprising a guide plate, a screw rod, a nut, a roller, a wheel fork and a support; the nut is positioned in the support, and the upper end face of the nut is flush with the upper end face of the support; the screw rod is arranged in the nut; the hand wheel is sleeved on the screw rod and fixed on the upper end surface of the nut; the guide plate is positioned in the sleeve and fixed on the lower end surface of the screw rod; a wheel fork is fixed on the upper end surface of the screw rod; the roller is arranged on the wheel fork through the inner shaft and limits the axial movement of the roller through the limiting sheet.

2. The adjustable rubber tube valve cylinder support assembly of claim 1, wherein said support comprises a base plate and a sleeve vertically fixed to an upper surface of said base plate such that a centerline of said sleeve passes through a geometric center of said base plate; the bottom plate is a rectangular plate, a plurality of bolt holes are distributed on the surface of the bottom plate, and the bottom plate is used for mounting a hopper cover of the pouring cylinder; the geometric center of the bottom plate is provided with an installation through hole of the sleeve; the sleeve is a cylinder, and the outer diameter of the lower end of the sleeve is the same as the inner diameter of the geometric center mounting through hole of the bottom plate; the upper end of the sleeve is provided with an end plate, and the center of the end plate is provided with a nut mounting hole; the periphery of the nut mounting hole is provided with a fixing hole of a hand wheel; a pair of sliding grooves are symmetrically distributed on the inner surface of the sleeve.

3. The adjustable rubber tube valve cylinder support assembly of claim 1, wherein said wheel fork lower end beam has a square hole at its geometric center for engaging said screw upper end connecting rod, said screw upper end connecting rod fitting into said square hole; the upper end surfaces of the two side plates of the wheel fork are respectively provided with a U-shaped groove, the two ends of the inner shaft of the roller are respectively arranged in the U-shaped grooves, and the axial movement of the roller is limited by a limiting piece.

4. The adjustable rubber tube valve cylinder support apparatus of claim 1, wherein said roller comprises a nylon wheel, a nylon wheel sleeve and an inner shaft, said nylon wheel being a hollow rotating body for supporting a cylinder; the nylon wheel is sleeved on the nylon wheel sleeve; the outer diameter of the nylon wheel sleeve is slightly larger than the inner diameter of the nylon wheel, so that the nylon wheel sleeve is in interference fit with the nylon wheel; the inner surfaces of the two ends of the nylon wheel sleeve are in a step shape, so that the large inner diameter sections of the two ends are matched with the outer diameter of the bearing.

5. The adjustable rubber tube valve cylinder support assembly of claim 1, wherein said nut has a radially protruding boss on its lower outer circumferential surface, the upper end of said boss defining a locating surface for said nut; and a plurality of threaded holes for connecting a hand wheel are uniformly distributed on the upper end surface of the nut.

6. The adjustable rubber tube valve cylinder support apparatus of claim 1, wherein an outer diameter of said inner shaft is slightly less than an inner diameter of the bearing; two ends of the inner shaft are respectively provided with a retaining ring, and the axial movement of the bearing is limited by the retaining rings; the outer diameters of the two ends of the inner shaft are smaller than the width of the U-shaped hole of the wheel fork; the ends of the two ends of the inner shaft are respectively provided with a spigot, and a limiting sheet is arranged on the spigot.

Technical Field

The invention relates to the technical field of solid rocket engines, in particular to an adjustable rubber tube valve cylinder supporting device.

Background

In the charging process of the solid rocket engine, a rubber tube valve is used as a propellant pouring valve to control the flow rate of slurry. In large-scale casting equipment, the primary rubber tube valve is a single-cylinder rubber tube valve which is of an asymmetric structure. Wherein the cylinder is cantilever structure relative to the valve body, is connected with the valve rod between cylinder and the valve body, and in long-time use, the gravity of cylinder can make the valve rod produce deformation to influence the life of rubber tube valve. Except in the field of solid rocket engines, the rubber tube valve is vertically arranged when in use, namely, the fluid passage is a horizontal passage, so the defects are not caused. Therefore, in the field of solid rocket engines, in order to reduce the deformation of the valve rod and prolong the service life of the rubber tube valve, an adjustable rubber tube valve cylinder supporting device is sought, and the adjustable rubber tube valve cylinder supporting device has high engineering practical value.

Disclosure of Invention

In order to overcome the defect that the service life of a rubber tube valve is influenced by deformation of a valve rod in the prior art, the invention provides an adjustable rubber tube valve cylinder supporting device.

The invention comprises a guide plate, a screw rod, a nut, a roller, a wheel fork and a support. The nut is positioned in the support, and the upper end face of the nut is flush with the upper end face of the support. The screw rod is arranged in the nut. The hand wheel is sleeved on the screw rod and fixed on the upper end face of the nut. The guide plate is positioned in the sleeve and fixed on the lower end face of the screw rod. A wheel fork is fixed on the upper end surface of the screw rod; the roller is arranged on the wheel fork through the inner shaft and limits the axial movement of the roller through the limiting sheet.

The support comprises a bottom plate and a sleeve, wherein the sleeve is vertically fixed on the upper surface of the bottom plate, and the center line of the sleeve passes through the geometric center of the bottom plate. The bottom plate is a rectangular plate, a plurality of bolt holes are distributed on the surface of the bottom plate, and the bottom plate is used for mounting a hopper cover of the pouring cylinder; and the geometric center of the bottom plate is provided with a mounting through hole of the sleeve. The sleeve is a cylinder, and the outer diameter of the lower end of the sleeve is the same as the inner diameter of the geometric center mounting through hole of the bottom plate; the upper end of the sleeve is provided with an end plate, and the center of the end plate is provided with a nut mounting hole; the periphery of the nut mounting hole is provided with a fixing hole of a hand wheel. A pair of sliding grooves are symmetrically distributed on the inner surface of the sleeve.

The geometric center of the cross beam at the lower end of the wheel fork is provided with a square hole matched with the upper end connecting rod of the screw rod, and the connecting rod at the upper end of the screw rod is arranged in the square hole. The upper end surfaces of the two side plates of the wheel fork are respectively provided with a U-shaped groove, the two ends of the inner shaft of the roller are respectively arranged in the U-shaped grooves, and the axial movement of the roller is limited by a limiting piece.

The roller comprises a nylon wheel, a nylon wheel sleeve and an inner shaft, and the nylon wheel is a hollow rotating body and used for supporting the cylinder. The nylon wheel is sleeved on the nylon wheel sleeve. The outer diameter of the nylon wheel sleeve is slightly larger than the inner diameter of the nylon wheel, so that the nylon wheel sleeve and the nylon wheel are in interference fit. The inner surfaces of the two ends of the nylon wheel sleeve are in a step shape, so that the large inner diameter sections of the two ends are matched with the outer diameter of the bearing.

The outer circumferential surface of the lower end of the nut is provided with a boss protruding in the radial direction, and the upper end face of the boss forms a positioning face of the nut. And a plurality of threaded holes for connecting a hand wheel are uniformly distributed on the upper end surface of the nut.

The outer diameter of the inner shaft is slightly smaller than the inner diameter of the bearing. Check rings are respectively mounted on both ends of the inner shaft, and the axial movement of the bearing is restricted by the check rings. The outer diameters of the two ends of the inner shaft are smaller than the width of the U-shaped hole of the wheel fork. The ends of the two ends of the inner shaft are respectively provided with a spigot, and a limiting sheet is arranged on the spigot.

In the actual use process, after the rubber tube valve cylinder supporting device is integrally connected with the hopper cover, the roller is lowered to the lowest point, and then the rubber tube valve cylinder is installed to enable the roller to be in contact with the cylinder. And then the screw rod is adjusted to enable the roller to play a role in supporting the rubber tube valve cylinder, and finally the nut is locked to enable the roller to be fixed at the position to play a role in supporting the cylinder. In addition, the roller can ensure the horizontal movement of the rubber tube valve cylinder when the cylinder operates, so that the rubber tube valve can be normally opened and closed.

Compared with the prior art, the invention has the following beneficial effects:

the cylinder supporting device provided by the invention completely eliminates the phenomenon that the valve rod is deformed by the gravity of the rubber tube valve cylinder in the prior art. In the prior art, the valve rod deformation of the rubber tube valve cylinder is 20mm under the influence of gravity, and the rubber tube valve is damaged, so that the service life of the rubber tube valve is only 2 years. After the rubber tube valve is used, the valve rod is deformed and disappears, the service life of the rubber tube valve is prolonged, and the production cost is reduced.

The adjustable device can adapt to the support of different rubber tube valve cylinders and has the characteristics of simple structure and convenient operation.

Drawings

FIG. 1 is a schematic structural view of the apparatus;

FIG. 2 is a cross-sectional view of the pedestal;

FIG. 3 is a cross-sectional view of the lower portion of the sleeve;

FIG. 4 is a schematic structural view of a guide plate;

FIG. 5 is a schematic structural view of a screw;

FIG. 6 is a cross-sectional view of the nut;

FIG. 7 is a cross-sectional view of the hand wheel;

FIG. 8 is a schematic structural view of the fork;

FIG. 9 is a cross-sectional view of the roller;

FIG. 10 is a schematic structural view of a spacing piece;

in the figure: 1. a guide plate; 2. a screw; 3. a nut; 4. a roller; 5. a limiting sheet; 6. a wheel fork; 7, a hand wheel; 8. a support; 9 a sleeve; 10. a base plate; 11. a nylon wheel; 12. a nylon wheel sleeve; 13. an inner shaft; 14. a bearing; 15. and a retainer ring.

Detailed Description

The embodiment is an adjustable rubber tube valve cylinder supporting device used in the charging process of a solid rocket engine, and the adjustable rubber tube valve cylinder supporting device comprises a guide plate 1, a screw rod 2, a nut 3, a roller 4, a wheel fork 6 and a support 8.

The nut 3 is located in the seat 8 with its upper end face flush with the upper end face of the seat. The screw 2 is fitted into the nut. The hand wheel 7 is sleeved on the screw rod and fixed on the upper end face of the nut. The guide plate 1 is positioned in the sleeve and fixed on the lower end face of the screw rod 2. A wheel fork 6 is fixed on the upper end surface of the screw rod; the roller 4 is mounted on the wheel fork through an inner shaft 13, and the axial movement of the roller is limited through a limiting sheet.

The support 8 comprises a bottom plate 10 and a sleeve 9, wherein the sleeve is vertically fixed on the upper surface of the bottom plate, and the center line of the sleeve passes through the geometric center of the bottom plate. The bottom plate is a rectangular plate, a plurality of bolt holes are distributed on the surface of the bottom plate, and the bottom plate is used for mounting a hopper cover of the pouring cylinder; and the geometric center of the bottom plate is provided with a mounting through hole of the sleeve. The sleeve is a cylinder, and the outer diameter of the lower end of the sleeve is the same as the inner diameter of the geometric center mounting through hole of the bottom plate; the upper end of the sleeve is provided with an end plate, and the center of the end plate is provided with a nut mounting hole; the periphery of the nut mounting hole is provided with a fixing hole of a hand wheel 7. A pair of sliding grooves are symmetrically distributed on the inner surface of the sleeve.

The deflector 1 is a strip-shaped plate, and the length of the deflector is slightly less than the inner diameter of the sliding groove on the inner surface of the sleeve, so that the deflector and the sleeve are in clearance fit. The geometric center of the guide plate is provided with a square hole matched with the screw rod.

The centers of the end faces at the two ends of the screw rod are respectively provided with a square connecting rod, wherein the overall dimension of the lower end connecting rod is matched with the dimension of the square hole at the geometric center of the guide plate, and the overall dimension of the upper end connecting rod is matched with the dimension of the square hole at the geometric center of the wheel fork 6 cross beam. A threaded connecting hole is formed in the geometric center of the end face of the upper end connecting rod, and the screw is fixedly connected with the wheel fork through the threaded connecting hole; and a threaded connecting hole is also formed in the geometric center of the end face of the lower end connecting rod, and the screw is fixedly connected with the guide plate 1 through the threaded connecting hole.

The outer circumferential surface of the lower end of the nut 3 is provided with a boss protruding in the radial direction, and the upper end surface of the boss forms a positioning surface of the nut. And a plurality of threaded holes for connecting a hand wheel are uniformly distributed on the upper end surface of the nut.

The hand wheel 7 is a rectangular plate. The geometric center of the hand wheel is provided with a through hole of a screw rod. And the surface of the hand wheel is respectively provided with a plurality of connecting holes, and the positions of the connecting holes respectively correspond to the threaded holes on the upper end surface of the nut. The hand wheel is respectively provided with a plurality of lightening holes.

The wheel fork is of a U-shaped structure, a square hole matched with the upper end connecting rod of the screw rod is formed in the geometric center of the lower end cross beam, and the upper end connecting rod of the screw rod penetrates through the square hole and then is connected with the washer through a bolt. The upper end surfaces of the two side plates of the wheel fork are respectively provided with a U-shaped groove, the two ends of the inner shaft 13 of the roller are respectively arranged in the U-shaped grooves, and the axial movement of the roller is limited by the limiting sheet 5. The limiting piece 5 is fixed on the wheel fork through a screw.

The roller 4 comprises a nylon wheel 11, a nylon wheel sleeve 12, an inner shaft 13, a bearing 14 and a retainer ring 15, wherein the nylon wheel 11 is a hollow rotating body and is used for supporting the cylinder. The nylon wheel 11 is sleeved on the nylon wheel sleeve 12. The nylon wheel sleeve is a hollow revolving body, and the outer diameter of the nylon wheel sleeve is slightly larger than the inner diameter of the nylon wheel, so that the nylon wheel sleeve and the nylon wheel are in interference fit. The inner surfaces of the two ends of the nylon wheel sleeve are stepped, so that the large inner diameter sections of the two ends are matched with the outer diameter of the bearing 14. The end face formed by the step difference is a positioning face of the bearing. The bearing is mounted on the inner shaft 13.

The rolling of the roller 4 is realized through the bearing 14, and when the cylinder runs, the horizontal movement of the rubber tube valve cylinder is ensured, so that the rubber tube valve is opened and closed, and further the valve rod is driven to be opened and closed horizontally.

The outer diameter of the inner shaft 13 is slightly smaller than the inner diameter of the bearing. Check rings are respectively mounted on both ends of the inner shaft, and the axial movement of the bearing is restricted by the check rings. The outer diameters of the two ends of the inner shaft are smaller than the width of the U-shaped hole of the wheel fork. The ends of the two ends of the inner shaft are respectively provided with a spigot, and a limiting sheet is arranged on the spigot.

When the rubber tube valve cylinder supporting device is used, the rubber tube valve cylinder supporting device is integrally connected with the hopper cover. The rotating hand wheel drives the nut 3 to rotate, and then the screw 2 drives the wheel fork to move downwards, so that the roller 4 is lowered. And installing a rubber tube valve cylinder to enable the cylinder to be in contact with the concave surface of the nylon wheel on the roller. The adjusting screw rod enables the roller to play a role in supporting the rubber tube valve cylinder. The lock nut fixes the roller at the current position to support the cylinder. When the rubber tube valve is opened and closed, the cylinder moves horizontally, the roller rolls, no friction exists between the cylinder and the roller, and the rubber tube valve is normally opened and closed.