Screw rotor coping tool

Abstract

The utility model provides a screw rotor coping tool, which comprises a mounting table and a rotor rotatably arranged above the mounting table, the mounting table is provided with: a support assembly arranged at two ends of the rotor, the top of which horizontally supports the rotor; and the pressing assembly is arranged at one end of the rotor and comprises a conveying belt and a driving unit for driving the conveying belt to circularly move, and the conveying belt downwards presses the rotor and drives the rotor to rotate. The supporting assembly is arranged to support the lower side of the rotor shaft, the pressing assembly is arranged to downwards press the upper side of the rotor shaft to enable the rotor shaft to be tightly attached to the supporting assembly, the function of rapidly and horizontally positioning the rotor is achieved, the pressing assembly is provided with the conveying belt to drive the rotor to rotate, a worker can grind the sharp edge of the rotor through a file, and the problems of complex grinding operation, low efficiency and the like are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor positioning devices, in particular to a screw rotor grinding tool. Background Art

[0002] As the core component of equipment such as compressors, the processing quality and precision of the screw rotor are directly related to the performance and energy efficiency of the whole machine. Therefore, grinding is a crucial link in the processing of the screw rotor. Taking the variable pitch twin-screw rotor compressor as an example, when the twin rotors are meshed, the sharp edge of the rotor spiral part abuts against the other rotor profile. The meshing method is line-surface meshing, and the error is within a few tens of microns. The gas is gradually compressed from the inlet to the outlet of the compressor, generating a large amount of heat. In order to reduce the generation of heat, the expansion gap of the two screw rotors needs to be increased step by step from the inlet to the outlet after the two screw rotors are meshed. Therefore, after the screw rotor meshing test, if there is an interference part or the expansion gap is insufficient during meshing, the sharp edge of the rotor spiral part needs to be ground to eliminate the error so that it meets the design requirements.

[0003] In the prior art, rotor grinding is usually achieved by cutting chamfers on a machine tool. The rotor needs to be repositioned and calibrated on the machine tool before grinding. There is no special device to position the screw rotor, and the grinding operation is complicated and inefficient. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies in the prior art and provide a screw rotor grinding tool, which realizes the function of rapid horizontal positioning of the rotor by arranging a support assembly to support the lower side of the rotor shaft, and arranging a clamping assembly to press the upper side of the rotor shaft downward to make it close to the support assembly. The clamping assembly is provided with a conveyor belt to drive the rotor to rotate, and workers can use a file to grind the sharp edge of the rotor, thereby solving the problems of complicated grinding operation and low efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A screw rotor grinding tool comprises a mounting platform and a rotor rotatably arranged above the mounting platform, wherein the mounting platform is equipped with:

[0007] A support assembly, disposed at both ends of the rotor, with a top portion thereof horizontally supporting the rotor;

[0008] The pressing assembly is arranged at one end of the rotor, and comprises a conveyor belt and a driving unit for driving the conveyor belt to circulate. The conveyor belt presses the rotor downward and drives the rotor to rotate.

[0009] Preferably, the support assembly comprises a support plate mounted on the mounting platform and a plurality of abutment wheels rotatably connected to the top of the support plate, wherein the abutment wheels are arranged parallel to the rotor axis.

[0010] Preferably, two abutment wheels are mounted on each support plate, and outer sides of the abutment wheels are at the same height.

[0011] As a preference, the support assembly is bilaterally symmetrically arranged, and the abutment wheel is arranged on the inner side of the support plate.

[0012] As a preference, the clamping assembly also includes a fixed plate vertically mounted on the mounting platform and a movable plate movably mounted above the fixed plate; one end of the movable plate is rotatably connected to the fixed plate, and the other end is detachably connected to the fixed plate via a connecting piece, and a placement space is reserved between the movable plate and the fixed plate.

[0013] As a preference, the driving unit is installed on the outer side of the fixed plate, and the conveyor belt is arranged on the inner sides of the fixed plate and the movable plate.

[0014] As a preferred embodiment, the fixed plate and the movable plate are also equipped with:

[0015] A driving wheel, installed on the inner side of the fixed plate and connected to the output end of the driving unit to control the movement of the conveyor belt;

[0016] A plurality of driven wheels, mounted on the inner sides of the fixed plate and the movable plate;

[0017] The driving wheel and the plurality of driven wheels are at least arranged below the two sides of the rotor and above the rotor, and the conveyor belt passes around the outsides of the driving wheel and the plurality of driven wheels and passes through the upper side of the rotor.

[0018] Preferably, a tensioning wheel is installed on the inner side of the movable plate, and the outer side of the tensioning wheel is in contact with the conveyor belt; the tensioning wheel and the movable plate slide relative to each other to tension the conveyor belt.

[0019] As a preference, the movable plate is provided with a slide groove, and the tensioning wheel is movably installed in the slide groove through a slider; a reset member is installed between the slider and the slide groove.

[0020] As a preference, the direction of the slide groove is perpendicular to the direction of the conveyor belt abutting against the tensioning wheel.

[0021] The beneficial effects of the utility model are:

[0022] (1) The utility model provides a support assembly to support the lower side of the rotor shaft, and provides a clamping assembly to press the upper side of the rotor shaft downward to make it close to the support assembly, thereby realizing the function of rapid horizontal positioning of the rotor. The clamping assembly is provided with a conveyor belt to drive the rotor to rotate. Workers can use a file to grind the sharp edge of the rotor, thereby solving the problems of complicated grinding operation and low efficiency.

[0023] (2) The utility model uses a support plate and an abutment wheel to horizontally support the two ends of the rotor through the design of the support assembly, thereby ensuring the stability of the rotor during the grinding process. The abutment wheel is arranged parallel to the rotor axis and is symmetrically arranged on the left and right, making the support more balanced. The conveyor belt provides adaptability to rotors of different sizes, reduces the vibration caused by rotor imbalance, and improves the grinding accuracy.

[0024] (3) The utility model is connected to the fixed plate at one end by rotation through the movable plate, and a connecting piece is provided at the other end for detachable connection. After the connecting piece and the movable plate are released, the rotor can be quickly disassembled or installed. After the connecting piece and the movable plate are fixed, the positioning of the rotor can be completed, thereby improving work efficiency.

[0025] (4) The utility model ensures that the conveyor belt can press the rotor downward onto the abutment wheel and rotate synchronously under the action of the conveyor belt by arranging the driving wheel and the driven wheel on both sides and above the rotor, thereby improving stability.

[0026] (5) The utility model provides a tensioning wheel so that the conveyor belt can be appropriately tensioned, thereby preventing slipping or poor transmission due to relaxation. The tensioning wheel slides in the slide groove through a slider and is equipped with a reset member, so that the tensioning wheel can automatically tension the conveyor belt, thereby improving the reliability of the conveyor belt.

[0027] In summary, the utility model has the advantages of simple operation, high precision, strong stability, wide application range, etc., and provides reliable positioning for the grinding of the screw rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the support assembly of the utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0032] Figure 5 This is a schematic diagram of the utility model showing the movable panel in an open state;

[0033] Figure 6This is a schematic diagram of the structure of the movable plate of the utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] Embodiment 1

[0037] like Figure 1-5 As shown, this embodiment provides a screw rotor grinding tool, including a mounting platform 1 for carrying a rotor to be ground and a rotor 2 rotatably arranged above the mounting platform 1, and the mounting platform 1 is equipped with: a support assembly 3, which is arranged at both ends of the rotor 2 and whose top horizontally supports the rotor 2; a clamping assembly 4, which is arranged at one end of the rotor 2, including a conveyor belt 5 and a driving unit 41 for driving the conveyor belt 5 to circulate, and the conveyor belt 5 presses the rotor 2 downward and drives the rotor 2 to rotate.

[0038] By arranging a support assembly 3 to support the lower side of the rotor 2 shaft, and arranging a clamping assembly 4 to press the upper side of the rotor 2 shaft downward to make it close to the support assembly 3, the function of rapid horizontal positioning of the rotor 2 is achieved, and the clamping assembly 4 is provided with a conveyor belt 5 to drive the rotor 2 to rotate. Workers can use a file to grind the sharp edge of the rotor, thereby solving the problems of complicated grinding operation and low efficiency.

[0039] like Figure 1-3As shown, the support assembly 3 includes a support plate 31 mounted on the mounting platform 1 and a plurality of abutment wheels 32 rotatably connected to the top of the support plate 31, and the abutment wheels 32 are arranged parallel to the axial direction of the rotor 2. Two abutment wheels 32 are installed on each support plate 31, and the outer sides of the abutment wheels 32 are at the same height. The support assembly 3 is arranged symmetrically, and the abutment wheels 32 are arranged on the inner side of the support plate 31.

[0040] Through the design of the support assembly 3, the support plate 31 and the abutment wheel 32 are used to horizontally support the two ends of the rotor 2, thereby ensuring the stability of the rotor 2 during the grinding process. The abutment wheel 32 is arranged axially parallel to the rotor 2 and has a left-right symmetrical layout, making the support more balanced. The conveyor belt 5 provides adaptability to rotors 2 of different sizes, reduces the vibration caused by the imbalance of the rotor 2, and improves the grinding accuracy.

[0041] like Figure 1 , 4 As shown in Figures 5 and 6, the clamping assembly 4 also includes a fixed plate 42 vertically mounted on the mounting platform 1 and a movable plate 43 movably mounted above the fixed plate 42; one end of the movable plate 43 is rotatably connected to the fixed plate 42, and the other end is detachably connected to the fixed plate 42 via a connecting member 44, the connecting member 44 is respectively connected to the fixed plate 42 and the movable plate 43 via fasteners, and a placement space 45 is reserved between the movable plate 43 and the fixed plate 42. The driving unit 41 is mounted on the outside of the fixed plate 42, and the conveyor belt 5 is arranged on the inside of the fixed plate 42 and the movable plate 43.

[0042] The movable plate 43 is rotatably connected to one end of the fixed plate 42, and a connecting piece 44 is provided at the other end for detachable connection. After the connecting piece 44 and the movable plate 43 are released, the rotor 2 can be quickly disassembled or installed. After the connecting piece 44 and the movable plate 43 are fixed, the positioning of the rotor 2 can be completed, thereby improving work efficiency.

[0043] like Figure 2 , 4 As shown, the fixed plate 42 and the movable plate 43 are also equipped with: a driving wheel 6, which is installed on the inner side of the fixed plate 42 and is drivingly connected to the output end of the driving unit 41 to control the movement of the conveyor belt 5; a plurality of driven wheels 7, which are installed on the inner side of the fixed plate 42 and the movable plate 43; the driving wheel 6 and the plurality of driven wheels 7 are at least arranged at the lower positions on both sides of the rotor 2 and the upper position of the rotor 2, and the conveyor belt 5 bypasses the outer sides of the driving wheel 6 and the plurality of driven wheels 7 and passes through the upper side of the rotor 2 to ensure that the conveyor belt 5 can press the rotor 2 downward. In this embodiment, three driven wheels 7 are arranged, which are respectively located on the left side of the driving wheel 6, the right side of the connecting member 44 and the upper side of the rotor 2.

[0044] The arrangement of the driving wheel 6 and the driven wheel 7 on both sides and above the rotor 2 ensures that the conveyor belt 5 can press the rotor 2 downward onto the abutting wheel 32 and rotate synchronously under the action of the conveyor belt 5, thereby improving stability.

[0045] Embodiment 2

[0046] like Figure 4-6 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment is different from the first embodiment in that: a tensioning wheel 8 is further installed on the inner side of the movable plate 43, and the outer side of the tensioning wheel 8 is in contact with the conveyor belt 5; the tensioning wheel 8 slides relative to the movable plate 43 to tension the conveyor belt 5.

[0047] The movable plate 43 is provided with a slide groove 431, and the tension wheel 8 is movably installed in the slide groove 431 through the slider 9; a reset member 10 is installed between the slider 9 and the slide groove 431. In this embodiment, the reset member 10 is a spring. In addition, the reset member 10 can also be a tension spring arranged on the opposite side of the slider 9. The direction of the slide groove 431 is perpendicular to the direction of the conveyor belt 5 abutting against the tension wheel 8, so that the tension wheel 8 has a higher adjustment efficiency.

[0048] By providing the tensioning wheel 8, the conveyor belt 5 can be appropriately tensioned to prevent slipping or poor transmission due to relaxation. The tensioning wheel 8 slides in the slide groove 431 through the slider 9 and is equipped with a reset member 10, so that the tensioning wheel 8 can automatically tension the conveyor belt 5, thereby improving the reliability of the conveyor belt 5.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw rotor grinding tool, comprising a mounting platform for carrying a rotor to be ground, characterized in that: Also includes: A support assembly, arranged on the mounting platform at both ends of the rotor, with its top horizontally supporting the rotor; as well as The pressing assembly is arranged at one end of the rotor, and comprises a conveyor belt and a driving unit for driving the conveyor belt to circulate. The conveyor belt presses the rotor downward and drives the rotor to rotate.

2. A screw rotor grinding tool according to claim 1, characterized in that: The support assembly comprises a support plate mounted on the mounting platform and a plurality of abutment wheels rotatably connected to the top of the support plate, wherein the abutment wheels are arranged parallel to the rotor axis.

3. A screw rotor grinding tool according to claim 2, characterized in that: Two abutment wheels are mounted on each support plate, and outer sides of the abutment wheels are at the same height.

4. A screw rotor grinding tool according to claim 3, characterized in that: The support assembly is arranged symmetrically on both sides, and the abutment wheel is arranged on the inner side of the support plate.

5. The screw rotor grinding tool according to claim 1, characterized in that: The clamping assembly also includes a fixed plate vertically installed on the mounting platform and a movable plate movably installed above the fixed plate; one end of the movable plate is rotatably connected to the fixed plate, and the other end is detachably connected to the fixed plate through a connecting piece, and a placement space is reserved between the movable plate and the fixed plate.

6. The screw rotor grinding tool according to claim 5, characterized in that: The driving unit is installed on the outer side of the fixed plate, and the conveyor belt is arranged on the inner sides of the fixed plate and the movable plate.

7. The screw rotor grinding tool according to claim 6, characterized in that: The fixed plate and the movable plate are also equipped with: A driving wheel, installed on the inner side of the fixed plate and connected to the output end of the driving unit to control the movement of the conveyor belt; A plurality of driven wheels, mounted on the inner sides of the fixed plate and the movable plate; The driving wheel and the plurality of driven wheels are at least arranged below the two sides of the rotor and above the rotor, and the conveyor belt passes around the outsides of the driving wheel and the plurality of driven wheels and passes through the upper side of the rotor.

8. The screw rotor grinding tool according to claim 7, characterized in that: A tensioning wheel is also installed on the inner side of the movable plate, and the outer side of the tensioning wheel is in contact with the conveyor belt; the tensioning wheel and the movable plate slide relative to each other to tension the conveyor belt.

9. The screw rotor grinding tool according to claim 8, characterized in that: The movable plate is provided with a slide groove, and the tensioning wheel is movably installed in the slide groove through a slider; a reset member is installed between the slider and the slide groove.

10. The screw rotor grinding tool according to claim 9, characterized in that: The direction of the slide groove is perpendicular to the direction of the conveyor belt abutting against the tensioning wheel.

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