CN212601516U - Positioning device - Google Patents
Positioning device Download PDFInfo
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- CN212601516U CN212601516U CN202021002760.3U CN202021002760U CN212601516U CN 212601516 U CN212601516 U CN 212601516U CN 202021002760 U CN202021002760 U CN 202021002760U CN 212601516 U CN212601516 U CN 212601516U
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Abstract
The embodiment of the disclosure provides a positioning device, which comprises a base and a plurality of positioning pieces, wherein the base is connected with a first part of a reference device, a first end part of each positioning piece is connected with the base, a second end part of each positioning piece is respectively clamped with a second part of the reference device and an end surface of a device to be positioned, and the positioning pieces are used for determining whether the position relation between the device to be positioned and the reference device meets a preset requirement in a configuration mode. The positioning device of the embodiment of the disclosure connects the positioning piece with different components respectively, and determines whether the installation positions of other components meet the preset requirements or not based on the position relationship between the reference device and other components and the position of the reference device, thereby improving the installation accuracy and the installation efficiency.
Description
Technical Field
The disclosure relates to the technical field of rocket engine assembly, in particular to a positioning device.
Background
The rocket engine is an indispensable component for ensuring the normal operation of the rocket, and in order to avoid any accident, the rocket engine is required to be installed strictly according to preset requirements, namely the size of each component of the rocket engine, the relative pose information between the components and the like, so as to ensure the safety of the rocket engine. The rocket engine mainly comprises a thrust chamber, a turbopump, a gas generator, a valve, a heat exchanger, a starter, a pipeline and a final assembly component. In order to ensure the normal work of the rocket, each component needs to be assembled strictly according to the parameters of the component, and the safe operation of the rocket engine is ensured.
In the assembly of the rocket engine, the installation position of the rocket engine is relatively fixed, such as the inlet position of the rocket engine, and the axial height and the radial position of the rocket engine are required to be ensured to be preset parameters. In general assembly, the inlet position is generally determined by depending on the installation position of the turbine pump relative to the thrust chamber, that is, the inlet position of the engine is determined by adjusting the installation position of the turbine pump when the turbine pump is installed to the thrust chamber, and once the turbine pump is installed and fixed, the inlet position of the engine is determined at the same time.
When each component of the rocket engine is designed, the thrust chamber is generally installed firstly, other components are continuously installed after the installation of the thrust chamber is finished and the installation position is determined, although the installation interface is reserved for each component, the reserved tolerance is usually large, so that whether the installation position of each component relative to the thrust chamber meets the requirement or not cannot be directly judged, and the installation precision and the installation efficiency are low.
Disclosure of Invention
In view of this, the embodiment of the present disclosure provides a positioning device to solve the problem that in the prior art, it cannot be directly determined whether the installation of each component in a rocket engine meets the requirements, and the installation accuracy and the installation efficiency are both low.
On one hand, the embodiment of the present disclosure provides a positioning device, which includes a base and a plurality of positioning elements, the base is connected to a first portion of a reference device, a first end of the positioning element is connected to the base, a second end of the positioning element is respectively connected to a second portion of the reference device and an end surface of a device to be positioned in a clamping manner, and the positioning element determines in a configuration manner whether a position relationship between the device to be positioned and the reference device meets a preset requirement.
In some embodiments, the positioning member includes a positioning rod and a chuck, the first end of the positioning rod is slidably connected to the base, and the chuck is connected to the second end of the positioning rod.
In some embodiments, scale markings are provided on the positioning rod.
In some embodiments, the chuck comprises a plurality of annularly arranged jaw portions configured to snap into engagement with the second portion of the reference device or a side portion of the end face of the device to be positioned.
In some embodiments, the base includes a bottom plate and a plurality of connecting rods, the connecting rods extend outwardly from the bottom plate, a first end of the connecting rods is connected to the bottom plate, and a second end of the connecting rods is slidably connected to the positioning member.
In some embodiments, the base plate is pivotally connected to the first end of the connecting rod.
In some embodiments, the base plate is disposed on the same horizontal plane as the connecting rod.
In some embodiments, the positioning rod and the connecting rod are perpendicular to each other.
In some embodiments, a coupling portion is provided on the base plate, the coupling portion configured to couple the base plate to the first portion of the reference device.
In some embodiments, the second portion of the reference device is a thrust chamber and the device to be positioned is a turbopump.
The positioning piece of the positioning device is connected with different components respectively, whether the installation positions of the other components meet the preset requirement or not is determined through the position relation between the reference device and the other components and the position of the reference device, and the installation precision and the installation efficiency are improved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a positioning device provided in the present disclosure;
fig. 2 is a schematic structural diagram of a positioning device provided by the present disclosure at a first angle;
FIG. 3 is a schematic structural view of a positioning device provided by the present disclosure at a second angle;
fig. 4 is a schematic view of the final assembly provided by the present disclosure using a positioning device.
Reference numerals:
1-a base; 11-a base plate; 12-a connecting rod; 111-a connecting portion; 2-a positioning element; 21-a positioning rod; 22-a chuck; 221-claw portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.
At present, in rocket engine assembly, after the position of a thrust chamber is determined, other components need to be installed based on the position of the thrust chamber as a reference position, although installation interfaces are reserved for all the components, the reserved tolerance is usually large, so that whether the installation of each component and adjacent components meets requirements cannot be directly judged, and the installation precision and the installation efficiency are low. Based on this, the present disclosure provides a positioning device, which can directly determine a positional relationship between a component such as a turbo pump and a thrust chamber, and visually determine whether the positional relationship between the component such as the turbo pump and the thrust chamber meets a preset requirement, thereby improving the installation accuracy and the installation efficiency.
In the embodiment of the present disclosure, a turbo pump is further mounted based on the mounting position of the thrust chamber as an example, and the detailed description is given. Fig. 1 is a schematic structural diagram of a positioning device provided in the present disclosure, specifically, the positioning device includes a base 1 and a plurality of positioning members 2; in the embodiment of the disclosure, the positioning device includes two positioning elements 2 as an example for detailed explanation, that is, the positioning device shown in fig. 1 includes two positioning elements 2, and is applied to the scene of installing a thrust chamber and a turbopump in the rocket engine assembly process based on the positioning device, where the thrust chamber is used as a reference device, and the turbopump is used as a device to be positioned; however, it will be appreciated by those skilled in the art that the number of the positioning members included in the positioning device provided in the embodiments of the present disclosure may be adjusted based on the usage scenario, that is, the actual requirement, for example, other components may be installed according to the position of the thrust chamber.
Wherein the positioning pieces 2 are connected with the base 1; specifically, the base is connected with a first part of the reference device, a first end of the positioning piece 2 is connected with the base 1, and a second end of the positioning piece 2 is respectively connected with a second part of the reference device and an end face of the device to be positioned in a clamping mode. In a specific implementation, the first part of the reference device can be a force bearing device of a thrust chamber, such as a force bearing chamber, a force bearing frame and the like; since the relative positional relationship between the turbo pump and the thrust chamber is predetermined, and the turbo pump is installed based on the current position of the thrust chamber and the relative positional relationship between the turbo pump and the thrust chamber when the turbo pump is installed, the second part of the reference device in the embodiment of the present disclosure is a thrust chamber body; and then determining whether the position relation between the device to be positioned and the reference device meets the preset requirement or not by using the positioning piece.
Specifically, as shown in fig. 1, the positioning element 2 includes a positioning rod 21 and a chuck 22, a first end of the positioning rod 21 is slidably connected to the base 1, for example, the positioning rod 21 is cylindrical, and the base 1 is provided with a circular hole that is sleeved with the positioning rod 21 in a matching manner, so that the first end of the positioning rod 21 can pass through the circular hole and can move back and forth in a certain direction, that is, the first end of the positioning rod 21 is formed to be a structure that is slidably connected to the base 1. Further, the chuck 22 is connected to a second end of the positioning rod 21; the second end of the positioning rod 21 is fixed to the chuck 22, and the chuck 22 is fixedly connected to the second end of the positioning rod 21 by welding, for example. Of course, in order to accurately mark the deviation of the position, the positioning rod 21 is provided with a scale mark, and the scale mark is used for assisting in determining whether the position relationship between the device to be positioned and the reference device, for example, in the vertical direction meets the preset requirement. For example, the position of the scale mark on the positioning rod is determined based on the height difference between the horizontal plane on which the end surface of the turbopump is located and the horizontal plane on which the base 1 is located, which is determined when each component of the rocket engine is designed. Of course, not only one scale mark but also a plurality of scale marks may be provided based on an allowable error range, and here, the scale marks are not limited to lines, numbers, letters, and the like.
As shown in fig. 1, the chuck 22 includes a plurality of claw portions 221 arranged in a ring shape, and the claw portions 221 are configured to be engaged with a second portion of the reference device or a side portion of an end surface of the device to be positioned. Considering that, for example, the end surfaces of the turbine pump and the thrust chamber are both circular in shape, as shown in fig. 1, one end of each of the plurality of claw portions 221 is connected to the second end of the positioning rod 21, and the other end of each of the claw portions 221 is circumferentially arranged to form a circular structure, so that the other end of each of the claw portions 221 can be engaged with the end surface of the turbine pump and the side portion of the end surface of the thrust chamber, that is, the other end of each of the claw portions 221 can be engaged with the second portion of the reference device or the side portion of the end surface of the device to be positioned. Of course, when the end face of the second portion of the reference device or the end face of the device to be positioned has another shape, the arrangement manner of the plurality of claw portions 221 may be determined based on the shape of the end face of the second portion of the reference device or the end face of the device to be positioned, as long as the structure formed after the plurality of claw portions 221 are arranged and the shape of the end face of the second portion of the reference device or the end face of the device to be positioned can be matched with each other, that is, the claw portions can be engaged with the side portions of the end face of the second portion of the reference device or the device to be positioned.
Of course, in the process of circumferentially arranging the claw portions 221, a certain angle may exist between two adjacent claw portions 221, as shown in fig. 1, each chuck includes three claw portions 221, and the angles between two adjacent claw portions 221 are all 120 °, and of course, the angles between two adjacent claw portions 221 may not be equal; in the process of circumferentially arranging the claw portions 221, the claw portions 221 may be continuously arranged, that is, an angle between two adjacent claw portions 221 is 0 °. The embodiment of the present disclosure is not particularly limited to this, and the clamping claw portion 221 may be clamped with the second portion of the reference device or the side portion of the end surface of the device to be positioned.
As shown in fig. 2, the claw portion 221 is engaged with a side portion of an end surface of the turbo pump and a side portion of an end surface of the thrust chamber, respectively.
With reference to fig. 1, the base 1 includes a bottom plate 11 and a plurality of connecting rods 12, the connecting rods 12 extend outward from the bottom plate 11, and a first end of each connecting rod 12 is connected to the bottom plate 11, where the bottom plate 11 is connected to the first end of each connecting rod 12 in a rotating manner, that is, an angle between two adjacent connecting rods 12 can be adjusted in a certain plane according to actual needs and current usage scenarios to meet needs and current usage scenarios, and it is further determined whether a positional relationship between components such as a thrust chamber and a turbo pump in a horizontal direction meets preset requirements. In the embodiment of the present disclosure, considering that the thrust chamber is located at a position and a relative position between the turbo pump and the thrust chamber is determined when each component of the rocket engine is designed, the angle between the two connecting rods 12 of the base 1 is determined based on the location of the thrust chamber and the relative position between the turbo pump and the thrust chamber. In addition, in consideration of the high precision required for assembling the rocket engine assembly, it is preferable that the two connecting rods 12 are fixedly connected to the bottom plate 11 to ensure that the angle formed between the two connecting rods 12 is fixed, so that the precision of assembling the rocket engine assembly can be ensured to a certain extent, and the safe operation of the rocket engine can be ensured.
Further, the second end of the connecting rod 12 is slidably connected with the positioning member 2; specifically, a through hole is arranged at the second end of the connecting rod 12, and the through hole is configured and sleeved with the positioning rod 21; of course, the shape of the through hole may be the same as the cross-sectional shape of the positioning rod 12, and is not limited to the circular shape shown in fig. 1. After the positioning rod 21 is sleeved in the through hole, the positioning rod 21 and the connecting rod 12 are in a mutually perpendicular state; preferably, after the positioning rod 21 is sleeved in the through hole, the outer surface of the positioning rod 21 is attached to the inner wall of the through hole, no gap exists, it is ensured that the positioning rod 21 cannot shake, i.e. cannot incline, in the through hole, and the positioning rod and the connecting rod 12 are always kept in a mutually perpendicular state, which can also ensure the assembly accuracy of the rocket engine to a certain extent, and ensure that the rocket engine can safely operate.
With reference to fig. 1, a connecting portion 111 is disposed on the bottom plate 11, and the connecting portion 111 is configured to connect the bottom plate 11 with the first portion of the reference device, wherein the connecting portion 111 is a screw hole. In a specific implementation, the first portion of the reference device is provided with a matching portion corresponding to the size, shape and position of the screw hole, and the matching portion and the screw hole are matched with each other to connect the bottom plate 11 with the first portion of the reference device, so as to achieve the purpose of fixing the bottom plate 11. Of course, the present disclosure does not limit the specific form of the connection portion 111, nor the connection manner between the base plate 11 and the first portion of the reference device, as long as the base plate 11 can be fixed to the reference device. For example, the matching portion on the first part of the reference device is also a screw hole, and the screw hole on the first part of the reference device is the same as the screw hole on the bottom plate 11 in size and shape, at this time, the bottom plate 11 and the first part of the reference device are connected by using a screw matching with the screw hole, specifically, the screw hole on the first part of the reference device and the screw hole on the bottom plate 11 are sequentially sleeved on the screw, so as to achieve the purpose of connecting the bottom plate 11 and the first part of the reference device.
Considering that the positioning device in the embodiment of the present disclosure is used for the assembly of rocket motors, it is necessary to ensure the accuracy of each parameter, and therefore, it is preferable to arrange the bottom plate 11 and the connecting rod 12 on the same horizontal plane, the positioning rod and the connecting rod are perpendicular to each other, and the plane where the claw part 221 is located and the positioning rod 21 are perpendicular to each other; to ensure the accuracy of each parameter in the rocket motor assembly.
Fig. 2 is a schematic structural diagram of a positioning device provided in an embodiment of the present disclosure at a first angle; fig. 3 is a schematic structural diagram of a positioning device at a second angle according to an embodiment of the present disclosure.
In particular, fig. 4 shows a schematic view of the final assembly with the positioning device; with reference to fig. 4, the procedure for installing the turbopump and the thrust chamber during the assembly process of the rocket engine by using the positioning device of the present disclosure is as follows: firstly, the turbine pump and the thrust chamber are arranged at preset positions based on an assembly design, and then the base plate 11 is connected with a bearing chamber of the thrust chamber through a connecting part 111 of the base plate 11; then, the positioning rod 21 is sleeved in the through hole formed at the second end of the connecting rod 12, and each of the claw portions 221 included in one of the chucks 22 is controlled to be clamped with the side portion of the end surface of the thrust chamber body; then, checking whether each of the claw portions 221 included in the other chuck 22 can be completely clamped with the side portion of the end surface of the turbine pump, and if not, adjusting the turbine pump until each of the claw portions 221 included in the other chuck 22 can be completely clamped with the side portion of the end surface of the turbine pump; after another chuck 22 with the joint is realized to the upper surface of turbo pump, look over locating lever 21 with the scale mark that connecting rod 12 junction shows, judge whether the error that produces between the scale mark of current demonstration and the scale mark of predetermineeing the demonstration is in the within range of allowed error, if not, then continue to adjust the turbo pump, until the error that produces between the scale mark of current demonstration and the scale mark of predetermineeing the demonstration falls into the within range of allowed error, and then accomplish the assembly of turbo pump.
The positioning device of the embodiment of the disclosure is respectively connected with different components through the positioning piece, and whether the installation positions of other components meet the preset requirements is determined through the position relation between the reference device and other components and the position of the reference device, so that the installation precision and the installation efficiency are improved.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the disclosure with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, the subject matter of the present disclosure may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.
The scope of the disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The above embodiments are merely exemplary embodiments of the present disclosure, which is not intended to limit the present disclosure, and the scope of the present disclosure is defined by the claims. Various modifications and equivalents of the disclosure may occur to those skilled in the art within the spirit and scope of the disclosure, and such modifications and equivalents are considered to be within the scope of the disclosure.
Claims (10)
1. The positioning device is characterized by comprising a base and a plurality of positioning pieces, wherein the base is connected with a first part of a reference device, a first end part of each positioning piece is connected with the base, a second end part of each positioning piece is respectively connected with a second part of the reference device and the end surface of a device to be positioned in a clamping mode, and the positioning pieces are used for determining whether the position relation between the device to be positioned and the reference device meets the preset requirement or not in a configuration mode.
2. The positioning device of claim 1, wherein the positioning member comprises a positioning rod and a chuck, a first end of the positioning rod is slidably connected to the base, and the chuck is connected to a second end of the positioning rod.
3. The positioning device of claim 2, wherein scale markings are provided on the positioning rod.
4. A positioning device according to claim 2, wherein the chuck comprises a plurality of annularly arranged jaw portions which are arranged to snap into engagement with the second part of the reference device or a side portion of the end face of the device to be positioned.
5. The positioning device as set forth in claim 2, wherein said base includes a bottom plate and a plurality of connecting rods extending outwardly from said bottom plate, a first end of said connecting rods being connected to said bottom plate and a second end of said connecting rods being slidably connected to said positioning member.
6. The positioning device of claim 5, wherein the base plate is pivotally connected to the first end of the connecting rod.
7. The positioning device of claim 5, wherein the base plate is disposed on the same horizontal plane as the connecting rod.
8. The positioning device of claim 5, wherein the positioning rod and the connecting rod are perpendicular to each other.
9. A positioning device according to claim 5, wherein the base plate is provided with a connection portion arranged to connect the base plate with the first part of the reference device.
10. A positioning device according to any of claims 1-9, wherein the second part of the reference device is a thrust chamber and the device to be positioned is a turbo pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021002760.3U CN212601516U (en) | 2020-06-04 | 2020-06-04 | Positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021002760.3U CN212601516U (en) | 2020-06-04 | 2020-06-04 | Positioning device |
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| Publication Number | Publication Date |
|---|---|
| CN212601516U true CN212601516U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021002760.3U Active CN212601516U (en) | 2020-06-04 | 2020-06-04 | Positioning device |
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| CN (1) | CN212601516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607292A (en) * | 2021-07-15 | 2021-11-05 | 广东超人节能厨卫电器有限公司 | Thermocouple positioning device |
-
2020
- 2020-06-04 CN CN202021002760.3U patent/CN212601516U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607292A (en) * | 2021-07-15 | 2021-11-05 | 广东超人节能厨卫电器有限公司 | Thermocouple positioning device |
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Effective date of registration: 20220818 Address after: Room 823, Block C, Xi'an National Digital Publishing Base, No. 996, Tiangu 7th Road, High-tech Zone, Xi'an City, Shaanxi Province 710065 Patentee after: Shaanxi Tianhui Aerospace Technology Co.,Ltd. Address before: Room 017, b801, block B, O & M international headquarters building, 501 East Chang'an Street, Xi'an national civil aerospace industry base, Shaanxi 710100 Patentee before: Xi'an Chenji exploration space technology Co.,Ltd. |
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