Double-screw rotor contour surface detection tool
By designing a twin-screw rotor profile surface inspection fixture, and utilizing sliding and clamping components to achieve precise positioning and simulated assembly of the screw rotor, the problem of time-consuming and labor-intensive screw rotor meshing clearance inspection is solved, thereby improving inspection efficiency and assembly accuracy.
Patent Information
- Application Number
- CN202520135001.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-21
AI Technical Summary
In twin-screw pumps, existing technologies struggle to efficiently detect the meshing clearance between the screw rotors, leading to time-consuming and labor-intensive assembly, and increasing the risk of air leakage or excessive wear.
A tooling for detecting the profile surface of a twin-screw rotor was designed, including a sliding assembly and a clamping assembly. By combining the clamping block and the limiting plate, the screw rotor can be accurately positioned and simulated for assembly. The meshing clearance can be directly measured using a feeler gauge.
It enables precise detection of the screw rotor meshing clearance, simplifies the operation process, improves detection efficiency, reduces labor intensity, and ensures accurate assembly of the screw rotor inside the pump.
Smart Images
Figure CN223727039U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of screw detection, in particular to a double-screw rotor profile detection tool. BACKGROUND
[0002] As a commonly used conveying component in industrial production, a double-screw pump is generally driven by a motor to drive double-screw rotors in the pump to move at the same speed in opposite directions, so that the material can be efficiently conveyed. The screw rotors used in the double-screw pump are generally composed of a screw body with a gear wheel and a rotating shaft. In order to maintain the long-term and efficient operation of the pump, it is a key link to ensure that the engagement state between the two screw bodies meets the standard during the assembly of the pump.
[0003] If the two screw rotors are directly assembled in the pump, the following problems will usually occur: the engagement gap between the two screw rotors is too large, and air leakage occurs during the operation of the pump; the engagement part of the two screw rotors is excessively contacted, and the parts are excessively worn or even damaged during the operation of the pump. Therefore, how to detect the engagement gap before the assembly of the two screw rotors to ensure that the engagement gap of the screw rotors meets the technical requirements is a technical problem to be solved in the industry. However, since the gear wheels are not uniformly arranged on the surface of the screw body, the two screw rotors usually need to be moved multiple times to meet the measurement requirements of the engagement gap during the assembly in the simulation pump, and then the engagement gap is measured by using a plug gauge, which is time-consuming and laborious. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a double-screw rotor profile detection tool to solve the problems in the background technology.
[0005] A double-screw rotor profile detection tool comprises:
[0006] A sliding assembly is provided with two sliding members, and the two sliding members are installed on the two sides of the top end of the mounting plate.
[0007] A clamping assembly is provided with a limiting plate group and a clamping group.
[0008] The limiting plate group is provided with two limiting plates parallel to each other, each limiting plate is arranged between the two sliding members, and is matched and installed on the top end of the sliding member.
[0009] The clamping group comprises two clamping block groups. Each clamping block group has two clamping blocks. An installation slot is formed in the top end of each clamping block to clamp the screw rotor in the air above the mounting plate. Two clamping blocks are matched with the screw rotors and are installed on the two sides of the top end of a limiting plate to limit the horizontal movement of the screw rotors.
[0010] Further, each sliding member has a guide rail and a sliding block set; the guide rails of the sliding members are parallel to each other and are arranged on both sides of the top of the mounting plate, and the sliding block set is slidingly connected to the guide rails.
[0011] Further, a groove is arranged on the side wall of one limiting plate close to the other limiting plate; the grooves of the two limiting plates and the sliding rails enclose a variable accommodating space for accommodating the screw rotor.
[0012] Further, two clamping blocks of a clamping block set are arranged on the top end of the limiting plate in a matched manner.
[0013] Further, the screw body of the screw rotor is clamped by the clamping block set at the two end faces in the axial direction of the screw body, so as to limit the displacement of the screw rotor in the axial direction.
[0014] Further, when the two clamping blocks in the same guide rail are in contact, the two screw rotors are completely meshed, so as to simulate the assembly condition of the two screw rotors in the pump.
[0015] Further, the sliding groove is arranged on the side wall of the guide rail in the horizontal direction, and the bottom end of each sliding block is provided with a clamping groove matched with the guide rail, so as to penetrate the guide rail at the bottom end of the sliding block.
[0016] Further, the sliding groove is arranged on the side wall of the guide rail in the horizontal direction, and the bottom end of each sliding block is provided with a clamping groove matched with the guide rail, so as to penetrate the guide rail at the bottom end of the sliding block.
[0017] Further, the mounting groove is a V-shaped groove.
[0018] Further, the mounting plate is bolted to the top end of the workbench.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] Through clamping of the rotating shaft of the screw rotor by the mounting groove and limiting of the two end faces of the screw body of the screw rotor in the axial direction by the clamping set, the two screw rotors are positioned at the same time, and the meshing gap of the two screw rotors will not deviate from the initial positioning due to sliding of the sliding block in the simulation assembly. This not only enables the two screw rotors to accurately restore the assembly condition in the pump when meshing, without the need for multiple adjustments, thereby reducing the labor intensity in the detection process. Subsequently, detection of the meshing gap of the two screw rotors by the feeler gauge can directly reflect the above-mentioned assembly condition, which is simple and fast in operation and greatly improves the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0022] Fig. 1 A structure schematic view of a double-screw rotor profile surface detection tool according to an embodiment of the present application;
[0023] Fig. 2 A top view of a double-screw rotor profile surface detection tool according to an embodiment of the present application.
[0024] Reference signs:
[0025] 10, mounting plate; 11, guide rail; 111, sliding groove; 12, sliding block; 121, clamping groove;
[0026] 20a, first clamping block group; 20b, second clamping block group; 200, clamping block; 21, mounting groove; 22a, first limiting plate; 22b, second limiting plate; 22c, accommodating space. DETAILED DESCRIPTION
[0027] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.
[0028] In the description of the present application, it is to be understood that the terms "length", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0029] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0030] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "connection" and the like terms should be understood broadly, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, can be direct connection, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element interaction relationship.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0031] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.
[0032] The following disclosure provides many different embodiments or examples for implementing different structures of the utility model.For the purpose of simplifying the disclosure of the utility model, the components and settings of specific examples are described in the following text.Of course, they are only examples, and the purpose is not to limit the utility model.In addition, the utility model can refer to the same reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.In addition, the utility model provides examples of various specific processes and materials, but the person skilled in the art can realize the application of other processes and / or the use of other materials.
[0033] The embodiments of the utility model will be described in detail below with reference to the drawings.
[0034] The utility model embodiment provides a kind of double screw rotor profile surface detection tool, please refer to Figs. 1-2 The double screw rotor profile surface detection tool includes sliding assembly and clamping assembly.
[0035] Specifically,
[0036] Sliding assembly includes two sliding members, each sliding member has guide rail 11 and slider group.Two guide rails 11 of sliding assembly are parallel to each other and are arranged on the top of mounting plate 10 on both sides, and the slider group is slidably connected to guide rail 11. Among them, to avoid technician mis-touch sliding assembly, mounting plate 10 can be connected to the top end of workbench by bolt.The extension direction of the top surface of mounting plate 10 is horizontal direction.
[0037] The guide rail 11 is provided with two, the two guide rails 11 are parallel to each other, and are provided on both sides of the top end of the mounting table 10. The sliding groove 111 is provided on the two side walls of the guide rail 11 perpendicular to the extension direction of the guide rail 11.
[0038] The slider group is provided with two sliders 12, and a clamping groove 121 matched with the guide rail 11 is formed at the bottom end of each slider 12, that is, the shape and size of the cross section of the guide rail 11 in the extension direction of the guide rail 11 are equal to the shape and size of the cross section of the clamping groove 121, and the clamping groove 121 penetrates through the bottom end of the slider 12 along the extension direction of the guide rail 11, so that the guide rail 11 can penetrate through the bottom end of the slider 12 through the clamping groove 121, and is in sliding connection with the slider 12. The sliders 12 of the slider group are arranged on the same guide rail 11.
[0039] The clamping assembly includes a limiting plate group and a clamping group. A limiting plate of the limiting plate group is installed on the top of the slider group, so that the slider 12 installed at the bottom end of the limiting plate can slide along the guide rail 11 synchronously with the movement of the limiting plate. The clamping block 200 of the clamping group is installed on the top end of the limiting plate, and is used for clamping the screw rotor.
[0040] The limiting plate group is installed on the top of the slider group, and includes a first limiting plate 22a and a second limiting plate 22b. The two limiting plates are parallel to each other, are arranged across the two guide rails 11 respectively, and are matched and installed on the top end of the slider 12, that is, the two ends of each limiting plate are connected with a slider 12 respectively, and the movement of the limiting plate makes the two sliders 12 slide along the guide rail 11 synchronously. At the same time, a groove is formed in the side wall of one limiting plate close to the other limiting plate, so that the groove of the first limiting plate 22a, the guide rail 12 and the groove of the second limiting plate 22b enclose a variable accommodating space 22c, which is used for accommodating the screw rotor. That is, when the two limiting plates move towards each other along the sliding direction of the slider 12, the accommodating space 22c becomes smaller, and vice versa.
[0041] The clamping group is installed on the top of the limiting plate group. Each clamping block group includes two clamping blocks 200, and the two clamping blocks 200 are matched with the accommodating space 22c and are installed on the top end of the limiting plate, that is, the two ends of each limiting plate are connected with a clamping block 200 respectively, so that the two ends of the screw body of the screw rotor in the axial direction can be clamped by the two clamping blocks 200, and the circumferential side wall of the screw body of the screw rotor can be in the accommodating space 22c. An installation groove 21 matched with the rotating shaft is formed at the top end of each clamping block 200, so that the rotating shaft connected to the outer side wall of the positioning block is clamped by the installation groove 21. The depth of the installation groove 21 is such that the clamped screw rotor is in the air above the mounting table 10. The installation groove 21 can be a V-shaped groove.
[0042] The clamping group comprises a first clamping block group 20a and a second clamping block group 20b. The first clamping block group 20a is used to clamp the driving screw rotor, and the second clamping block group 20b is used to clamp the driven screw rotor. The driving screw rotor and the driven screw rotor are clamped in the first clamping block group 20a and the second clamping block group 20b respectively. The driving screw rotor is kept stationary, and the driven screw rotor is moved towards the driving screw rotor until the driven screw rotor is engaged with the driving screw rotor. Preferably, when a clamping block 200 of the first clamping block group 20a moves to a clamping block 200 of the second clamping block group 20b on the same guide rail 11 in the sliding direction of the sliding block 12, the driven screw rotor is fully engaged with the driving screw rotor, thereby simulating the assembly of the two screw rotors in the pump. One of the indicators for detecting the assembly is the engagement gap between the driving screw rotor and the driven screw rotor. The engagement gap can be measured by a feeler gauge.
[0043] Based on the above embodiment, the working principle of the present application is as follows:
[0044] (1) Positioning: The driving screw rotor is clamped by the first clamping block group 20a, and the driven screw rotor is clamped by the second clamping block group 20b. The driving screw rotor is kept stationary, and the driven screw rotor is moved towards the driving screw rotor until the driven screw rotor is fully engaged with the driving screw rotor, thereby simulating the assembly of the two screw rotors in the pump.
[0045] (2) Detection: A feeler gauge is placed in the engagement gap between the driving screw rotor and the driven screw rotor to detect the size of the gap.
[0046] Based on the above embodiment, the advantages of the present application are as follows:
[0047] The installation groove 21 clamps the shaft of the screw rotor, and the clamping group limits the two end faces of the screw body of the screw rotor in the axial direction, thereby positioning the two screw rotors. During the simulation assembly, the sliding of the sliding block 12 will not cause the engagement gap of the two screw rotors to deviate from the initial positioning. This not only accurately restores the assembly of the two screw rotors in the pump when they are engaged, but also reduces the labor intensity of the detection process without the need for multiple adjustments. Subsequently, the detection of the engagement gap of the two screw rotors by the feeler gauge directly reflects the above assembly, which is simple and fast, and greatly improves the detection efficiency.
Claims
1. A twin screw rotor profile detection tooling, characterized by: The double screw rotor profile detection tooling comprises: a sliding assembly provided with two sliding members, the two sliding members being oppositely arranged on the top of the mounting plate; a clamping assembly provided with a limiting plate set and a clamping set; the limiting plate set is provided with two limiting plates parallel to each other, each of the limiting plates being arranged across the two sliding members and being matchedly arranged on the top of the sliding members; the clamping set comprises two clamping block sets, each of the clamping block sets being provided with two clamping blocks, each of the clamping blocks being provided with an installation slot on the top thereof for clamping the screw rotor in the air above the mounting plate, and the two clamping blocks being matchedly arranged on the two sides of the top of a limiting plate respectively for limiting the horizontal movement of the screw rotor.
2. The twin screw rotor profile detection tooling of claim 1, wherein: each of the sliding members is provided with a guide rail and a sliding block set, the guide rails of the sliding members being parallel to each other and oppositely arranged on the top of the mounting plate, and the sliding block set being slidingly connected to the guide rail; 3. The twin screw rotor profile detection tooling of claim 2, wherein: a groove is arranged on the side wall of a limiting plate close to the other limiting plate, and the grooves of the two limiting plates and the guide rails enclose a variable accommodating space for accommodating the screw rotor.
4. The twin screw rotor profile detection tooling of claim 3, wherein: the two clamping blocks of a clamping block set are matchedly arranged on the top of the limiting plate.
5. The twin screw rotor profile detection tooling of claim 4, wherein: the screw body of the screw rotor is clamped by a clamping block set at the two ends of the screw body in the axial direction for limiting the displacement of the screw rotor in the axial direction.
6. The twin screw rotor contour face detection tooling of claim 4, wherein: when the two clamping blocks on the same guide rail are in contact, the two screw rotors are completely meshed for simulating the assembly of the double screw rotors in the pump.
7. The twin screw rotor contour face detection tooling of claim 2, wherein: a sliding groove is arranged on the side wall of the guide rail perpendicular to the extending direction of the guide rail in the horizontal direction, and a clamping groove matched with the guide rail is arranged on the bottom of each of the sliding blocks for penetrating the guide rail through the bottom of the sliding block.
8. The twin screw rotor profile detection tooling of claim 7, wherein: the sliding grooves are oppositely arranged on the two side walls of the guide rail perpendicular to the extending direction of the guide rail.
9. The twin screw rotor contour face detection tooling of claim 1, wherein: the installation slot is a V-shaped slot.
10. The twin screw rotor contour face detection tooling of claim 1, wherein: the mounting plate is bolted on the top of the workbench.