CN114890254A

CN114890254A - Small solid rocket engine wire winding device and method

Info

Publication number: CN114890254A
Application number: CN202210510557.4A
Authority: CN
Inventors: 刘世鑫; 华金宏; 丁飞; 陈亚杰; 薛小鑫
Original assignee: Inner Mongolia Aerospace Hongxia Chemical Co ltd
Current assignee: Inner Mongolia Aerospace Hongxia Chemical Co ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-08-12

Abstract

The invention relates to the technical field of solid rocket engine manufacturing, in particular to a small solid rocket engine wire winding device and method. The device comprises a flat plate, a linear guide rail, a guide rail sliding block, a supporting frame, a hand-operated wheel, a tooth-shaped rubber conveying belt, a synchronizing wheel, a bevel gear component, a bearing seat, a connecting shaft, a rotating shaft, an eccentric wheel, a reciprocating sliding block, a worm and gear structure, a cotton wire tensioner, a wire quick clamp, a rolling bearing, a bearing sleeve, a fixing sleeve, an upright post, a reciprocating guide rod support, a reciprocating guide rod, a cylindrical rubber conveying belt, a lifting ring screw and the like. The invention adopts a worm gear structure with large transmission ratio to make the structure more compact; a change in steering effected by the bevel gear assembly; the reciprocating motion is realized by adopting an eccentric wheel crank slider structure; different working condition requirements can be realized by adjusting the transmission ratio of the worm gear, the worm and the bevel gear. The invention solves the problems that the existing manual winding technology for the engine wire is difficult to operate and the quality cannot be guaranteed.

Description

Small solid rocket engine wire winding device and method

Technical Field

The invention relates to the technical field of solid rocket engine manufacturing, in particular to a small solid rocket engine wire winding device and method.

Background

With the continuous development of the solid rocket engine technology, the technical level of the engine manufacturing technology is also continuously improved, and new requirements are provided for the assembly structure of the solid rocket engine. In the manufacturing industry of small solid rocket engines, air tightness is an important index of the solid rocket engines in the manufacturing process of the solid rocket engines. In order to prevent the small solid rocket engine from air leakage, the insulation skin is required to be removed at the position of a lead wire penetrating through an igniter in the manufacturing process of the small solid rocket engine at present, two circles of cotton wires are wound on the part where the insulation skin is removed in a manual mode, and then putty is coated to play a role in insulation and sealing. The winding of the engine wire is carried out manually, which is a tedious and time-consuming work, and needs experienced workers to operate, and the winding is not improved for a long time, so that the operation is difficult, the efficiency is low, and the quality cannot be guaranteed.

Disclosure of Invention

Technical problem to be solved by the invention

The invention provides a small solid rocket engine wire winding device and method, which are used for solving the problems of difficult operation, low efficiency, incapability of guaranteeing the quality and the like of the existing manual engine wire winding technology.

Technical scheme adopted by the invention for solving technical problem

A small solid rocket motor wire wrapping apparatus comprising: an operation platform component, a power transmission component, a reciprocating transmission component, a winding transmission component and a conveying component,

the operating platform comprises a flat plate, a linear guide rail, a guide rail sliding block and a support frame, wherein the linear guide rail and the guide rail sliding block are fixed on the flat plate, and the support frame is fixed on the guide rail sliding block;

the power transmission assembly comprises a hand-operated wheel, a toothed rubber conveyor belt and a synchronizing wheel, wherein the hand-operated wheel and the synchronizing wheel are respectively arranged on the support frame, and the toothed rubber conveyor belt connects the hand-operated wheel and the synchronizing wheel;

the reciprocating transmission assembly comprises a connecting shaft, a bevel gear assembly, a rotating shaft, a bearing seat, an eccentric wheel and a reciprocating slide block, wherein the connecting shaft is arranged on the supporting frame;

the winding transmission assembly comprises an upright post, a fixed shaft, a worm gear, a fixed sleeve, a cotton thread tensioner, a bearing sleeve and a quick wire clamp, wherein the upright post is fixed on a flat plate, the fixed shaft is arranged on the upright post, the fixed sleeve is fixed on a support frame, rolling bearings are arranged on the fixed sleeve and the bearing sleeve, the worm gear penetrates through the fixed sleeve provided with the rolling bearings, the bearing sleeve is fixed on the support frame, the cotton thread tensioner is arranged on the bearing sleeve, the fixed shaft penetrates through the worm gear, and the quick wire clamp is arranged on the fixed shaft;

the conveying part comprises a support assembly, a cylindrical rubber driving belt, a lifting bolt, a reciprocating guide rod and a reciprocating guide rod support, wherein the lifting bolt is connected with the support frame, the support assembly and the reciprocating guide rod support are fixed on a flat plate, one end of each of the two reciprocating guide rods is fixed with the reciprocating slide block, the reciprocating guide rod support is penetrated in the middle of the reciprocating guide rod support, the axial positioning is carried out, the other ends of the two reciprocating guide rods are connected with the cylindrical rubber driving belt, the cylindrical rubber driving belt penetrates one end of the support assembly to be connected with the lifting bolt, and the other end of the cylindrical rubber driving belt is connected with the reciprocating guide rod.

Furthermore, the synchronizing wheel is matched with the worm gear and the worm to provide power for the winding device.

Further, the support subassembly includes guiding axle support, falls wheel and guiding axle, fall the wheel and pass through guiding axle fixed mounting on the guiding wheel support.

Further, the bevel gear assembly comprises two bevel gears fixed on the shaft, and the two bevel gears are mutually embedded at 90 degrees to realize the conversion of the motion direction.

Further, the worm and gear structure comprises a worm and a worm gear which are mutually embedded at 90 degrees in the axial direction, so that a larger transmission ratio is realized.

Furthermore, the reciprocating structure of the crank and the sliding block comprises a sliding block fixed on the guide rod and a crank fixed on the eccentric wheel which are mutually embedded so as to realize the reciprocating function.

A small-sized solid rocket engine wire winding method comprises the following operation steps:

s1: clamping the lead by a lead quick clamping device;

s2: the synchronous wheel is driven to rotate under the action of the tooth-shaped rubber conveyor belt through the rotation of the hand-operated wheel;

s3: the synchronizing wheel rotates, drives the worm gear and takes place to rotate, and cotton thread tensioning ware on the bearing sleeve carries out the winding of cotton thread to the wire:

s4: the worm and gear rotates, the bevel gear component is driven to rotate through the connecting shaft, and the eccentric wheel is driven to rotate under the action of the rotating shaft under the condition that the bevel gear component rotates;

s5: the eccentric wheel rotates to drive the reciprocating slide block to reciprocate left and right, and all parts connected with the support frame are driven by the reciprocating slide block to reciprocate left and right under the action of the conveying part.

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

1) the structure is more compact by adopting a worm and gear structure with a large transmission ratio;

2) a change in steering effected by the bevel gear assembly;

3) the reciprocating motion is realized by adopting an eccentric wheel crank slider structure;

4) different working condition requirements can be realized by adjusting the transmission ratio of the worm gear, the worm and the bevel gear.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not limit the invention. In the drawings:

FIG. 1: a schematic diagram of a wire winding device of a solid rocket engine;

FIG. 2: the structural schematic diagram of the operation platform assembly;

FIG. 3: a schematic top view of the operating platform assembly mechanism;

FIG. 4: the power transmission assembly is structurally schematic;

FIG. 5: the structure schematic diagram of the winding transmission assembly;

FIG. 6: the structure schematic diagram of the reciprocating transmission assembly;

FIG. 7: the structure of the conveying component is schematic;

FIG. 8: a schematic plan view of the structure of the conveying assembly;

wherein: 1-operation platform component, 2-power transmission component, 3-reciprocating transmission component, 4-winding transmission component, 5-conveying component, 6-conducting wire, 7-product, 11-flat plate, 12-support frame, 13-linear guide rail, 14-guide rail slide block, 21-synchronizing wheel, 22-tooth-shaped rubber conveying belt, 23-hand wheel, 31-connecting shaft, 32-bevel gear component, 33-rotating shaft, 34-bearing seat, 35-eccentric wheel, 36-reciprocating slide block, 41-upright post, 42-fixed shaft, 43-worm gear, 44-fixed sleeve, 45-cotton thread tensioner, 46-bearing sleeve, 47-conducting wire quick clamping device, 51-support component, 52-cylindrical rubber conveying belt, 52-reciprocating transmission belt, and the like, 53-lifting ring screw, 54-reciprocating guide rod and 55-reciprocating guide rod support.

Detailed Description

In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is obvious that the described embodiments are only some, not all embodiments of the proposed solution. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in the following figure 1, the small solid rocket engine wire winding device comprises an operation platform assembly 1, a power transmission assembly 2, a reciprocating transmission assembly 3, a winding transmission assembly 4, a conveying part 5 and the like.

As shown in fig. 2-3 below, the operation platform assembly 1 includes a flat plate 11, a linear guide 13, a guide slider 14, and a support frame 12. A linear guide rail 13 and a guide rail sliding block 14 are fixed on the flat plate 11, wherein a supporting frame 12 is fixed on the guide rail sliding block 14.

As shown in fig. 4 below, the power transmission assembly 2 includes a hand wheel 23, a tooth-shaped rubber belt 22, and a synchronizing wheel 21. The hand-operated wheel 23 and the synchronizing wheel 21 are respectively arranged on the supporting frame 21, wherein the tooth-shaped rubber conveyor belt 22 connects the hand-operated wheel 23 and the synchronizing wheel 21.

As shown in fig. 5 below, the winding transmission assembly 4 includes a column 41, a fixed shaft 42, a worm gear 43, a fixed sleeve 44, a cotton thread tensioner 45, a bearing sleeve 46, and a wire quick clamp 47. The upright column 41 is fixed on the flat plate 11, the fixed shaft 42 is arranged on the upright column 41, the fixed sleeve 44 is fixed on the support frame 12, rolling bearings are arranged on the fixed sleeve 44 and the bearing sleeve 46, the worm gear 43 penetrates through the fixed sleeve 44 and the bearing sleeve 46 which are provided with the rolling bearings and is fixed on the support frame 12, the bearing sleeve 46 is provided with a cotton thread tensioner 45, the fixed shaft 42 penetrates through the worm gear 43, and the quick wire clamp 47 is arranged on the fixed shaft 42.

As shown in fig. 6 below, the reciprocating transmission assembly 3 includes a connecting shaft 31, a bevel gear assembly 32, a rotating shaft 33, a bearing seat 34, an eccentric 35, and a reciprocating slider 36. The connecting shaft 31 is arranged on the support frame 21, one end of the connecting shaft 31 is connected with the worm gear 43, and the other end of the connecting shaft 31 is connected with the bevel gear assembly 32; the rotating shaft 33 is arranged on the supporting frame 21 provided with a bearing seat 34, one end of the rotating shaft 33 is connected with the bevel gear component 32, and the other end is connected with the eccentric wheel 35; the eccentric 35 is fitted with a reciprocating slider 36.

As shown in fig. 7-8 below, the transport component 5 includes a support assembly 51, a cylindrical rubber drive belt 52, an eye screw 53, a reciprocating guide 54, and a reciprocating guide support 55. The lifting bolt 53 is connected with the support frame 12, and the support assembly 51 and the reciprocating guide rod support 55 are fixed on the flat plate 11; two reciprocating guide rods 54 are provided, one end of each reciprocating guide rod is respectively fixed with the reciprocating slide block 36, the middle part of each reciprocating guide rod penetrates through a reciprocating guide rod support 55 to be axially positioned, and the other end of each reciprocating guide rod is connected with the cylindrical rubber transmission belt 52; a cylindrical rubber belt 52 is connected to the eye screw 53 through the seat assembly 51 at one end and to the reciprocating guide 54 at the other end. This allows the carriage 12 to reciprocate back and forth under the drive of the reciprocating slide 36.

The working principle of the small solid rocket engine wire winding device is as follows:

firstly, the lead 6 is clamped under the action of a lead quick clamping device 47; secondly, hand-operated wheel 23 is powered manually, and synchronous wheel 21 is driven to rotate under the action of tooth-shaped rubber conveyor belt 22 when hand-operated wheel 23 rotates; the synchronous wheel 21 rotates and simultaneously drives the worm gear 43 to rotate, under the condition that the worm gear 43 rotates, the cotton thread tightener 45 on the bearing sleeve 46 winds the conducting wire 6, under the condition that the worm gear 43 rotates, the bevel gear assembly 32 is driven to rotate under the action of the connecting shaft 31, under the condition that the bevel gear assembly 32 rotates, the eccentric wheel 35 is driven to rotate under the action of the rotating shaft 33, the reciprocating slide block 36 is driven to reciprocate left and right while the eccentric wheel 35 rotates, and under the drive of the reciprocating slide block 36, all parts connected with the support frame 12 are driven to reciprocate left and right under the action of the conveying part 5. This causes the cotton tensioner 45 to perform a reciprocating screw feeding action to wind the wire.

Claims

1. A small solid rocket motor wire winding device, comprising: an operating platform component, a power transmission component, a reciprocating transmission component, a winding transmission component and a conveying component,

2. A small solid-rocket engine wire-winding device according to claim 1, wherein: the synchronizing wheel is matched with the worm gear and the worm to provide power for the winding device.

3. A small solid-rocket engine wire-winding device according to claim 1, wherein: the support assembly comprises a guide shaft support, a falling wheel and a guide shaft, and the falling wheel is fixedly installed on the guide wheel support through the guide shaft.

4. A small solid-rocket engine wire-winding device according to claim 1, wherein: the bevel gear component comprises two bevel gears which are fixed on the shaft and are mutually embedded at an angle of 90 degrees, so that the movement direction is converted.

5. A small solid-rocket engine wire-winding device according to claim 1, wherein: the worm and gear structure comprises a worm and a worm wheel which are mutually embedded at 90 degrees in the axial direction so as to realize a larger transmission ratio.

6. A small solid-rocket engine wire-winding device according to claim 1, wherein: the reciprocating structure of the crank and the sliding block comprises a sliding block fixed on the guide rod and a crank fixed on the eccentric wheel which are mutually embedded so as to realize the reciprocating function.

7. A small-sized solid rocket engine wire winding method is characterized by comprising the following operation steps:

s1: clamping the lead by a lead quick clamping device;

s3: the synchronous wheel rotates to drive the worm gear to rotate, and the cotton thread tensioner on the bearing sleeve winds the conducting wire;