Measuring device for mounting distance of gears on rotor shaft

Abstract

The utility model relates to a device for measuring the installation distance of a gear on a rotor shaft, and the device comprises a pedestal, a first ring block, a supporting assembly, and a plurality of supporting columns, the top surface of the pedestal is provided with a movable groove in the vertical direction, and the first ring block moves in the movable groove in the vertical direction. The supporting assembly is used for supporting the first ring block at different heights so as to limit the position of the first ring block in the movable groove, the multiple supporting columns are evenly arranged on the top face of the first ring block in the circumferential direction, the top ends of the supporting columns protrude to be in a hemispherical shape, and the top ends of the supporting columns extend to the position above the base. The supporting column is used for abutting against a helical tooth surface of a gear on a rotor shaft, and the distance between the top surface of the base and a gear positioning surface is a to-be-measured installation distance. For gears with the same sub-cone angle, after the gears are placed on the multiple supporting columns, the sub-cone vertexes are located at the same point of the same height, as long as the sub-cone vertexes are located on the top face of the base, an operator can directly measure the distance between the top face of the base and the gear positioning face, and the distance is the installation distance of the gears.

Description

Technical Field

[0001] The utility model relates to the field of installation distance measuring devices, in particular to a measuring device for the installation distance of gears on a rotor shaft. Background Art

[0002] The installation distance of the gear is a very important factor in the gear transmission system, which will directly affect the transmission efficiency and service life of the gear. The installation distance is the axial distance from the vertex of the cone to the positioning surface. For the quasi-curved surface gear, it is the shortest distance between the common perpendicular line of the two axes and the positioning surface. If the installation distance of the gear is too large, the effective area of ​​the gear meshing surface will be reduced, thereby reducing the transmission efficiency of the gear and increasing the energy loss. If the installation distance of the gear is too large, the effective area of ​​the gear meshing surface will be reduced, thereby reducing the transmission efficiency of the gear and increasing the energy loss. In addition, a large installation distance will also damage the load balance of the gear, shorten the service life of the gear, and even cause the gear to fail.

[0003] The installation distance of the gear on the rotor shaft is as follows: Figure 1 As shown in the figure, since the vertex of the sub-cone of the installation distance is a virtual body at the intersection of the extension lines, it is difficult to directly measure the installation distance using common measuring tools.

[0004] The utility model patent with announcement number CN216645300U discloses a device for measuring the distance between the intersection of the meshing pitch line of a bevel gear and the mounting surface, including a detection body, a positioning plate, a detection shaft, a positioning assembly and an adjustment assembly; the detection body is L-shaped, including a connected vertical positioning plate and a horizontal positioning plate; the detection shaft is vertically connected to the vertical positioning plate and parallel to the horizontal positioning plate, and the first bevel gear is sleeved on the detection shaft; the positioning plate is connected to the horizontal positioning plate through the positioning assembly, the upper surface of the positioning plate is the positioning surface, and the second bevel gear is connected to the positioning surface of the positioning plate through the positioning assembly; the adjustment assembly is used to adjust the second bevel gear and the first bevel gear to a normal meshing state.

[0005] The above-mentioned related technical solutions have the following defects: each time the above-mentioned device performs measurement, it is necessary to install the gear to be measured and adjust the meshing position, and then perform measurement and calculation, which is rather troublesome. For some gears with the same cone angle but different other parameters, a simpler measuring device is required. Utility Model Content

[0006] In order to more conveniently measure the installation distance of gears on a rotor shaft, the present application provides a device for measuring the installation distance of gears on a rotor shaft.

[0007] The present application provides a device for measuring the installation distance of gears on a rotor shaft, which adopts the following technical solution:

[0008] A device for measuring the installation distance of a gear on a rotor shaft comprises a base, a first ring block, a support assembly and a plurality of support columns, wherein a movable groove is provided on the top surface of the base in a vertical direction, the first ring block moves in the movable groove in a vertical direction, the support assembly is used to support the first ring block at different heights to limit the position of the first ring block in the movable groove, a plurality of support columns are uniformly arranged on the top surface of the first ring block in a circumferential direction, the top end protrusions of the support columns are arranged in a hemispherical shape, the top ends of the support columns extend above the base, the support columns are used to abut against the helical tooth surface of the gear on the rotor shaft, and the distance between the top surface of the base and the gear positioning surface is the installation distance to be measured.

[0009] By adopting the above technical solution, the rotor shaft is placed on the measuring device, and multiple support columns can abut against the helical tooth surface of the gear on the rotor shaft. For some gears with the same cone angle, the apex of the cone is located at the same point at the same height, so the height position of the first ring block is adjusted by the support assembly so that the apex of the cone is located on the top surface of the base. At this time, the gears with the same cone angle are placed on multiple support columns, and the operator directly measures the distance between the top surface of the base and the gear positioning surface. This distance is the installation distance of the gear, which can more conveniently measure the installation distance of the gear on the rotor shaft;

[0010] The adjustment method of the first ring block is to select one of the rotor shafts whose cone angle meets the requirements, first use other measuring devices or calculate the standard installation distance of the gear according to the design drawings, then place the gear on multiple support columns, adjust the height of the first ring block, make the distance between the top surface of the base and the gear positioning surface is the installation distance, and then lock the height position of the first ring block.

[0011] Preferably, a plurality of slots are evenly arranged on the first ring block along the circumferential direction, and the bottom ends of the support columns are inserted into corresponding slots.

[0012] By adopting the above technical solution, the support column can be detachably connected to the first ring block. If the support column or the first ring block is damaged, it can be replaced, saving costs. At the same time, for gears with different tooth pitches, support columns of appropriate number and position can be set to increase the applicability of the measuring device.

[0013] Preferably, a first annular groove is provided on the outer wall of the support column along the circumferential direction.

[0014] By adopting the above technical solution, the first ring groove can facilitate operators to remove the support column from the first ring block.

[0015] Preferably, the support assembly comprises a driving member and a supporting ring block, wherein the driving member drives the supporting ring block to slide in the movable groove along a vertical direction, and the supporting ring block is used to support the first ring block.

[0016] Preferably, a second ring groove is coaxially provided on the bottom surface of the first ring block, and a second ring block is coaxially provided on the top surface of the support ring block to be plugged into the second ring groove.

[0017] By adopting the above technical solution, the cooperation between the second ring block and the second ring groove enables the support ring block to always remain coaxial with the first ring block, while also limiting the position of the first ring block in the movable groove, so that the gear on the rotor shaft can be placed on the support column more stably.

[0018] Preferably, the driving member includes an adjusting member, two first sliders, two second sliders and two mutually hinged support rods, the two first sliders slide on the bottom surface of the support ring block in a horizontal direction, the two second sliders slide on the bottom wall of the slide groove in a sliding direction parallel to the first sliders, the two top ends of the two support rods are hinged on the two first sliders, the two bottom ends of the two support rods are hinged on the two second sliders, and the adjusting member is used to adjust the distance between the two second sliders.

[0019] By adopting the above technical solution, the distance between the two second sliders is adjusted by the adjusting member. When the distance between the two second sliders becomes smaller, the angle between the two support rods becomes smaller, and the distance between the two first sliders also becomes smaller synchronously. The two first sliders will drive the support ring block to move upward, and the support ring block can drive the first ring block to move upward.

[0020] Preferably, the adjusting member comprises two bolts, which are respectively threadedly connected to two sides of the base, and are respectively located on two sides of two second sliders, one end of the bolt is located outside the base, and the other end of the bolt abuts against the corresponding second slider.

[0021] By adopting the above technical solution, the operator can rotate the bolt so that the bolt can resist the movement of the second slider. Because the two second sliders always tend to move away from each other under the gravity of the support ring block, the first ring block and multiple support columns, the second slider will always be in contact with the bolt, exerting a force on the bolt, which in turn can limit the rotation of the bolt. When there is no external force, the bolt can remain stationary.

[0022] The technical effects of this utility model are mainly reflected in the following aspects:

[0023] 1. For some gears with the same cone angle, the cone apex is located at the same point at the same height. Therefore, the height position of the first ring block is adjusted through the support assembly so that the cone apex is located on the top surface of the base. At this time, the gears with the same cone angle are placed on multiple support columns. The operator directly measures the distance between the top surface of the base and the gear positioning surface. This distance is the installation distance of the gear, which can more conveniently measure the installation distance of the gear on the rotor shaft;

[0024] 2. The utility model sets a second ring block and a second ring groove. The cooperation between the second ring block and the second ring groove enables the support ring block to always remain coaxial with the first ring block, while also limiting the position of the first ring block in the movable groove. When the gear on the rotor shaft is placed on the support column, it can be more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the gear installation distance on the rotor shaft in the related technology.

[0026] Figure 2 It is a schematic diagram of the overall structure of the rotor shaft measurement state in an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the structure of the measuring device of the embodiment of the present application.

[0028] Figure 4 is along Figure 3 Section view along line AA.

[0029] Explanation of the accompanying drawings: 1. rotor shaft; 11. gear; 111. positioning surface; 2. base; 21. movable groove; 3. first ring block; 31. support column; 311. first ring groove; 32. slot; 33. second ring groove; 4. support assembly; 41. support ring block; 411. second ring block; 42. bolt; 43. first slider; 44. second slider; 45. support rod. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0031] An embodiment of the present application discloses a device for measuring the installation distance of gears on a rotor shaft.

[0032] Reference Figure 1-Figure 4 A measuring device for the installation distance of gears on a rotor shaft of the present embodiment comprises a base 2, a first ring block 3, a support assembly 4 and a plurality of support columns 31. A movable groove 21 is provided on the top surface of the base 2 in the vertical direction. The first ring block 3 moves in the movable groove 21 in the vertical direction. The support assembly 4 is used to support the first ring block 3 at different heights to limit the position of the first ring block 3 in the movable groove 21. A plurality of support columns 31 are uniformly arranged on the top surface of the first ring block 3 in the circumferential direction. The top protrusions of the support columns 31 are hemispherical. The top ends of the support columns 31 extend above the base 2. The support columns 31 are used to abut against the helical tooth surface of the gear 11 on the rotor shaft 1. The end surface of the gear 11 away from the support column 31 is the positioning surface 111 of the gear 11. The distance between the top surface of the base 2 and the positioning surface 111 of the gear 11 is the installation distance to be measured.

[0033] Reference Figure 1-Figure 3 , place the rotor shaft 1 on the measuring device, and multiple support columns 31 can abut against the bevel tooth surface of the gear 11 on the rotor shaft 1. For some gears 11 with the same cone angle, the apex of the cone is located at the same point at the same height, so the height position of the first ring block 3 is adjusted through the support assembly 4 so that the apex of the cone is located on the top surface of the base 2. At this time, the gears 11 with the same cone angle are placed on multiple support columns 31. The operator directly measures the distance between the top surface of the base 2 and the positioning surface 111 of the gear 11. This distance is the installation distance of the gear 11, which can more conveniently measure the installation distance of the gear 11 on the rotor shaft 1.

[0034] Reference Figure 4 The adjustment method of the first ring block 3 is as follows: one of the rotor shafts 1 with a cone angle that meets the requirements can be selected, and the standard installation distance of the gear 11 is first calculated using other measuring devices or according to the design drawings, and then the gear 11 is placed on multiple support columns 31, and the height of the first ring block 3 is adjusted so that the distance between the top surface of the base 2 and the positioning surface 111 of the gear 11 is the installation distance, and then the height position of the first ring block 3 is locked.

[0035] Reference Figure 3 and Figure 4 The first ring block 3 is provided with a plurality of slots 32 evenly arranged along the circumferential direction, and the bottom ends of the support columns 31 are inserted into the corresponding slots 32. The support columns 31 are detachably connected to the first ring block 3. If the support columns 31 or the first ring block 3 are damaged, they can be replaced, saving costs. At the same time, for gears 11 with different tooth pitches, the support columns 31 of appropriate number and position can be set to increase the applicability of the measuring device.

[0036] Reference Figure 3 A first annular groove 311 is formed on the outer wall of the support column 31 along the circumferential direction. The first annular groove 311 can facilitate the operator to remove the support column 31 from the first ring block 3.

[0037] Reference Figure 1 The support assembly 4 includes a driving member and a supporting ring block 41 . The driving member drives the supporting ring block 41 to slide in the movable groove 21 along the vertical direction. The supporting ring block 41 is used to support the first ring block 3 .

[0038] Reference Figure 4 A second ring groove 33 is coaxially provided on the bottom surface of the first ring block 3, and a second ring block 411 is coaxially provided on the top surface of the support ring block 41 to be plugged and matched with the second ring groove 33. The cooperation between the second ring block 411 and the second ring groove 33 enables the support ring block 41 to always remain coaxial with the first ring block 3, and also limits the position of the first ring block 3 in the movable groove 21, so that the gear 11 on the rotor shaft 1 can be placed on the support column 31 more stably.

[0039] Reference Figure 4 The driving member includes an adjusting member, two first sliders 43, two second sliders 44 and two mutually hinged support rods 45. The two first sliders 43 slide on the bottom surface of the support ring block 41 along horizontal directions parallel to each other, and the two second sliders 44 slide on the bottom wall of the slide groove along a sliding direction parallel to the first sliders 43. The two top ends of the two support rods 45 are hinged on the two first sliders 43, and the two bottom ends of the two support rods 45 are hinged on the two second sliders 44. The adjusting member is used to adjust the distance between the two second sliders 44.

[0040] Reference Figure 4 The distance between the two second sliders 44 is adjusted by the adjusting member. When the distance between the two second sliders 44 becomes smaller, the angle between the two support rods 45 becomes smaller, and the distance between the two first sliders 43 also becomes smaller synchronously. The two first sliders 43 will drive the support ring block 41 to move upward, and the support ring block 41 can drive the first ring block 3 to move upward.

[0041] Reference Figure 4 The adjusting member includes two bolts 42 , which are respectively threadedly connected to the two sides of the base 2 , and the two bolts 42 are respectively located on the two sides of the two second sliders 44 , one end of the bolt 42 is located outside the base 2 , and the other end of the bolt 42 abuts against the corresponding second slider 44 .

[0042] Reference Figure 2 and Figure 4 The operator rotates the bolt 42, and the bolt 42 can resist the movement of the second slider 44. Due to the gravity of the support ring block 41, the first ring block 3 and the multiple support columns 31, the two second sliders 44 always have a tendency to move away from each other, so the second slider 44 will always abut against the bolt 42, exerting a force on the bolt 42, which can in turn limit the rotation of the bolt 42. When there is no external force, the bolt 42 can remain stationary.

[0043] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A device for measuring the installation distance of gears on a rotor shaft, characterized in that: The invention comprises a base (2), a first ring block (3), a support assembly (4) and a plurality of support columns (31); a movable groove (21) is provided on the top surface of the base (2) in a vertical direction; the first ring block (3) moves in the movable groove (21) in a vertical direction; the support assembly (4) is used to support the first ring block (3) at different heights to limit the position of the first ring block (3) in the movable groove (21); a plurality of support columns (31) are evenly arranged on the top surface of the first ring block (3) in a circumferential direction; the top end protrusions of the support columns (31) are arranged in a hemispherical shape; the top end of the support columns (31) extends above the base (2); the support columns (31) are used to abut against the helical tooth surface of the gear (11) on the rotor shaft (1); and the distance between the top surface of the base (2) and the positioning surface (111) of the gear (11) is the installation distance to be measured.

2. The device for measuring the installation distance of gears on a rotor shaft according to claim 1, characterized in that: The first ring block (3) is evenly provided with a plurality of slots (32) along the circumferential direction, and the bottom ends of the support columns (31) are inserted into corresponding slots (32).

3. The device for measuring the installation distance of gears on a rotor shaft according to claim 2, characterized in that: A first annular groove (311) is provided on the outer wall of the support column (31) along the circumferential direction.

4. The device for measuring the installation distance of gears on a rotor shaft according to claim 1, characterized in that: The support assembly (4) comprises a driving member and a supporting ring block (41); the driving member drives the supporting ring block (41) to slide in a movable groove (21) along a vertical direction; the supporting ring block (41) is used to support the first ring block (3).

5. The device for measuring the installation distance of gears on a rotor shaft according to claim 4, characterized in that: A second ring groove (33) is coaxially provided on the bottom surface of the first ring block (3), and a second ring block (411) pluggably engaged with the second ring groove (33) is coaxially provided on the top surface of the support ring block (41).

6. The device for measuring the installation distance of gears on a rotor shaft according to claim 4, characterized in that: The driving member comprises an adjusting member, two first sliders (43), two second sliders (44) and two mutually hinged support rods (45), the two first sliders (43) slide on the bottom surface of the support ring block (41) in a horizontal direction, the two second sliders (44) slide on the bottom wall of the slide groove in a sliding direction parallel to the sliding direction of the first sliders (43), the two top ends of the two support rods (45) are hinged on the two first sliders (43), and the two bottom ends of the two support rods (45) are hinged on the two second sliders (44), and the adjusting member is used to adjust the distance between the two second sliders (44).

7. The device for measuring the installation distance of gears on a rotor shaft according to claim 6, characterized in that: The adjusting member comprises two bolts (42), the two bolts (42) are respectively threadedly connected to two sides of the base (2), the two bolts (42) are respectively located on two sides of two second sliders (44), one end of the bolt (42) is located outside the base (2), and the other end of the bolt (42) abuts against the corresponding second slider (44).

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