Portable shield main bearing gear radial roundness detection device

Abstract

The application provides a portable shield main bearing gear radial circle run-out detection device, and relates to the technical field of gear detection equipment. The device comprises a support, a rotating shaft and a positioning mechanism. A slot is formed in the inside of the support, the rotating shaft is installed in the inside of the slot, the positioning mechanism is installed on the top of the outer wall of the rotating shaft, and the plug base is rotatably connected to the bottom of the outer wall of the rotating shaft through a bearing. The axial positioning sleeve can quickly determine the installation height of the rotating shaft sleeve through the cooperation of the rotating shaft, the positioning mechanism and the connecting rod. Then, the linear sliding rail is installed through the rotating shaft sleeve. Next, the moving range of the sliding block is determined through the radial positioning block. Furthermore, the dial indicator is quickly installed through the connecting rod. Thus, the device for quickly assembling and detecting the gear is obtained. The half-circular measuring head is used to quickly detect the addendum / tooth groove of the gear in use. The radial circle run-out of the gear is directly measured.

Description

Technical Field

[0001] This invention relates to the field of gear testing equipment technology, and in particular to a portable device for detecting radial runout of shield tunnel main bearing gears. Background Technology

[0002] The main bearing gear of a tunnel boring machine (TBM) is a key component, responsible for transmitting power and torque and supporting the main shaft. Radial runout detection is used to assess the radial motion instability of the main bearing gear, thereby ensuring the normal operation of the TBM. Radial runout detection involves measuring the maximum amount of variation of the measuring head relative to the center line of the gear shaft by making double-sided contact with the measuring head in the middle of the tooth groove within one revolution of the gear.

[0003] Currently, the radial runout detection of pinions requires placing them in specialized testing equipment and inserting a measuring head into the tooth groove for measurement. Due to their size and weight, large gears cannot be measured using specialized equipment. Furthermore, at present, the radial runout of the gear can only be reflected by detecting the radial runout of the addendum circle. However, because there is a certain error between the radial runout of the working surface of the gear tooth groove and the radial runout of the addendum circle during the machining of large gears, the radial runout of the addendum circle can only indirectly reflect the radial runout of the gear tooth groove.

[0004] Therefore, we provide a portable shield tunnel main bearing gear radial runout detection device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a portable device for detecting radial runout of the main bearing gear in a tunnel boring machine, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable shield tunnel main bearing gear radial runout detection device, comprising a support, a rotating shaft and a positioning mechanism, wherein a slot is provided inside the support, the rotating shaft is installed inside the slot, and the positioning mechanism is installed on the top of the outer wall of the rotating shaft;

[0007] The bottom of the outer wall of the rotary shaft is rotatably connected to a plug socket via a bearing, and the plug socket matches the slot.

[0008] The positioning mechanism includes an axial positioning component, a rotary bushing, a linear slide rail, and a radial positioning block. The axial positioning component is installed on the top of the outer wall of the rotary shaft, the rotary bushing is installed above the axial positioning component, the linear slide rail is installed on one side of the rotary bushing, and the radial positioning block is slidably connected to the surface of the linear slide rail.

[0009] Preferably, the axial positioning assembly includes an axial positioning sleeve, a threaded hole, and a fixing bolt. The axial positioning sleeve is provided on the top of the outer wall of the rotating shaft. The axial positioning sleeve has a threaded hole inside, and the fixing bolt is threadedly connected to the inside of the threaded hole.

[0010] Preferably, a rectangular socket is fixedly connected to one side of the rotary bushing, and a threaded hole is provided on the surface of the rectangular socket, with a fixing bolt connected to the threaded hole.

[0011] Preferably, one end surface of the linear slide rail is symmetrically provided with threaded holes, and the two sides of the linear slide rail are symmetrically provided with grooves.

[0012] Preferably, the cross-sectional dimensions of the linear slide rail are the same as those of the rectangular socket, and the threads of the second threaded hole and the third threaded hole are matched.

[0013] Preferably, the radial positioning block has an inner protrusion symmetrically arranged on its inner side, and the top of the radial positioning block has a threaded hole 4, with a fixing bolt 3 connected to the internal thread of the threaded hole 4.

[0014] Preferably, a slider is installed on the outer side of the radial positioning block, and the slider is slidably connected to the linear slide rail. The inner wall of the slider is provided with an inner protrusion, and a mounting base is fixedly connected to the bottom of the slider.

[0015] Preferably, the bottom of the mounting base is provided with a connecting rod, the connecting rod including a sleeve, a sleeve rod and four fixing bolts, the bottom of the mounting base is threadedly connected to the sleeve, and the sleeve rod is inserted into the inside of the sleeve through the four fixing bolts.

[0016] Preferably, the surface of the sleeve is symmetrically provided with fixing holes, and the surface of the sleeve rod is uniformly provided with insertion holes, the diameter of which is the same as that of the fixing holes.

[0017] Preferably, a dial indicator is installed at the bottom of the connecting rod, a measuring head is installed on one side of the dial indicator, and a connecting seat is installed on the other side of the dial indicator.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. Through the cooperation of the rotary shaft, positioning mechanism and connecting rod, the installation height of the rotary shaft sleeve can be quickly determined by the axial positioning sleeve during use. Then, the linear slide rail is installed by the rotary shaft sleeve. Next, the movement range of the slider is determined by the radial positioning block. And, the dial indicator is quickly installed by the connecting rod. Thus, the device for testing large gears can be quickly assembled.

[0020] 2. By setting the measuring head, the semi-circular measuring head can quickly detect the tooth tip / tooth groove of the large gear during use, and more directly measure the radial runout of the gear. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention;

[0022] Figure 2 This is a top view of the support structure of the present invention;

[0023] Figure 3 This is a cross-sectional view of the axial positioning sleeve and the rotary bushing of the present invention;

[0024] Figure 4 This is an exploded view of the linear guide rail and rotary sleeve of the present invention;

[0025] Figure 5 This is a schematic diagram showing the cooperation between the linear guide rail, radial positioning block, and slider of the present invention;

[0026] Figure 6 This is a schematic diagram showing the position of the mounting base of the present invention.

[0027] The diagram is labeled as follows: 1. Support; 11. Slot; 2. Rotary shaft; 21. Bearing; 22. Plug socket; 3. Positioning mechanism; 31. Axial positioning assembly; 311. Axial positioning sleeve; 312. Threaded hole one; 313. Fixing bolt one; 32. Rotary shaft sleeve; 321. Rectangular socket; 322. Threaded hole two; 323. Fixing bolt two; 33. Linear slide rail; 331. Threaded hole three; 332. Groove; 34. Radial positioning block; 341. Inner protrusion one; 342. Threaded hole four; 343. Fixing bolt three; 4. Slider; 41. Inner protrusion two; 42. Mounting seat; 5. Connecting rod; 51. Sleeve; 511. Fixing hole; 52. Fixing bolt four; 53. Sleeve rod; 531. Insertion hole; 6. Dial indicator; 61. Measuring head; 62. Connecting seat. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] Please see Figure 1-5As shown, the present invention provides a technical solution: a portable shield tunnel main bearing gear radial runout detection device, including a support 1, a rotating shaft 2 and a positioning mechanism 3. The support 1 has a slot 11 inside, the rotating shaft 2 is installed inside the slot 11, and the positioning mechanism 3 is installed on the top of the outer wall of the rotating shaft 2.

[0031] The bottom of the outer wall of the rotary shaft 2 is rotatably connected to a plug socket 22 via a bearing 21, and the plug socket 22 matches the slot 11.

[0032] The positioning mechanism 3 includes an axial positioning component 31, a rotary bushing 32, a linear slide rail 33, and a radial positioning block 34. The axial positioning component 31 is installed on the top of the outer wall of the rotary shaft 2. The rotary bushing 32 is installed above the axial positioning component 31. The linear slide rail 33 is installed on one side of the rotary bushing 32. The radial positioning block 34 is slidably connected to the surface of the linear slide rail 33.

[0033] Furthermore, the axial positioning assembly 31 includes an axial positioning sleeve 311, a threaded hole 312, and a fixing bolt 313. The axial positioning sleeve 311 is provided on the top of the outer wall of the rotating shaft 2. The axial positioning sleeve 311 has a threaded hole 312 inside, and the fixing bolt 313 is threadedly connected inside the threaded hole 312. By setting the axial positioning sleeve 311, the linear slide rail 33 can be stably positioned above the large gear, avoiding the linear slide rail 33 from decreasing in height and colliding with the large gear during rotation.

[0034] Furthermore, a rectangular socket 321 is fixedly connected to one side of the rotary sleeve 32. The surface of the rectangular socket 321 is provided with a threaded hole 322. A fixing bolt 323 is connected to the threaded hole 322. The rotary sleeve 32 can be used to install the linear slide rail 33. At the same time, it can make the dial indicator 6 rotate stably around the rotary shaft 2 with the rotary sleeve 32 as the center.

[0035] Furthermore, one end surface of the linear slide rail 33 is symmetrically provided with threaded holes 331, and the two sides of the linear slide rail 33 are symmetrically provided with grooves 332. The cross-sectional dimensions of the linear slide rail 33 are the same as the cross-sectional dimensions of the rectangular socket 321. The threads of the threaded holes 322 and 331 are matched. By setting the linear slide rail 33, it can provide movement guidance for the radial positioning block 34.

[0036] It should be noted that when installing the linear guide rail 33, the fixing bolt 2 323 first engages with the threaded hole 2 322, and then with the threaded hole 331, until it is screwed into the interior of the linear guide rail 33.

[0037] Furthermore, the radial positioning block 34 has symmetrically arranged inner protrusions 341 on its inner side, and a threaded hole 342 is opened on the top of the radial positioning block 34. The threaded hole 342 is internally threaded with a fixing bolt 343. By adjusting the position of the radial positioning block 34 on the linear slide rail 33, it can adapt to the radius of the tooth tip / tooth groove surface of different large gears.

[0038] Example 2

[0039] Please see Figure 1 , Figure 5 and Figure 6 As shown in the first embodiment, as another implementation of the present invention, a slider 4 is installed on the outer side of the radial positioning block 34. The slider 4 is slidably connected to the linear slide rail 33. The inner wall of the slider 4 is provided with an inner protrusion 41. The bottom of the slider 4 is fixedly connected to a mounting base 42. By setting the slider 4, the dial indicator 6 is driven to move horizontally along the linear slide rail 33 to measure the value.

[0040] Furthermore, a connecting rod 5 is provided at the bottom of the mounting base 42. The connecting rod 5 includes a sleeve 51, a rod 52, and a fixing bolt 4 53. The bottom of the mounting base 42 is threadedly connected to the sleeve 51. The rod 53 is inserted into the inside of the sleeve 51 through the fixing bolt 4 52. Fixing holes 511 are symmetrically opened on the surface of the sleeve 51. Insertion holes 531 are evenly opened on the surface of the rod 53. The diameter of the insertion holes 531 is the same as that of the fixing holes 511. Through the cooperation of the sleeve 51, the rod 52, and the fixing bolt 4 53, the part of the dial indicator 6 that is in contact with the large gear can be adjusted.

[0041] Furthermore, a dial indicator 6 is installed at the bottom of the connecting rod 5, a measuring head 61 is installed on one side of the dial indicator 6, and a connecting seat 62 is installed on the other side of the dial indicator 6. The measuring head 61 is a plate-shaped machined part with a semi-circular shape.

[0042] The working principle is as follows: First, a portable shield tunnel main bearing gear radial runout detection device is moved to the working position. Firstly, the main bearing gear is placed horizontally on a platform surface. Secondly, the rotary shaft 2 is placed inside the main bearing gear and adjusted to the center position of the main bearing. Thirdly, the axial positioning sleeve 311 is inserted into the rotary shaft 2 and fixed with fixing bolt 313 according to the height of the main bearing gear to be tested. The linear slide rail 33 is placed horizontally on the main bearing and then inserted into the rectangular socket 321 and fixed with fixing bolt 323. Fourthly, the radial positioning block 34 is installed on the linear slide rail 33. The dial indicator 6 is installed at the bottom of the slider 4 via the connecting rod 5. The measuring head 61 is installed on the dial indicator 6 and adjusted to a horizontal state. The measuring head 61 is adjusted to align with the teeth of the main bearing gear. Step 5: Place the radial positioning block 34 against the slider 4 and lock the position of the radial positioning block 34 using fixing bolt 343. Step 6: Using this gear measuring point as the #1 tooth tip / groove, press the dial indicator 6 in 1.0mm, adjust the surface scale to "0", and move the slider 4 so that the measuring head 61 is completely away from the gear. Step 7: Using the rotary shaft 2 as the rotation center, rotate the linear slide rail 33 horizontally and move the slider 4 until it contacts the radial positioning block 34. Record the value of the dial indicator 6, which is the value of the #2 tooth tip / groove. Step 8: Repeat the "Step 7" steps to test all tooth tips / grooves and measure the largest variation among all values ​​to determine the radial runout value of the main bearing gear. This completes the use of a portable shield tunnel main bearing gear radial runout detection device.

Claims

1. A portable shield tunnel main bearing gear radial runout detection device, comprising a support (1), a rotating shaft (2), and a positioning mechanism (3), characterized in that: The support (1) has a slot (11) inside, a rotating shaft (2) is installed inside the slot (11), and a positioning mechanism (3) is installed on the top of the outer wall of the rotating shaft (2); The bottom of the outer wall of the rotary shaft (2) is rotatably connected to a plug socket (22) via a bearing (21), and the plug socket (22) matches the slot (11); The positioning mechanism (3) includes an axial positioning component (31), a rotary bushing (32), a linear slide rail (33), and a radial positioning block (34). The axial positioning component (31) is installed on the top of the outer wall of the rotary shaft (2). The rotary bushing (32) is installed above the axial positioning component (31). The linear slide rail (33) is installed on one side of the rotary bushing (32). The radial positioning block (34) is slidably connected to the surface of the linear slide rail (33).

2. The portable shield tunnel main bearing gear radial runout detection device according to claim 1, characterized in that, The axial positioning assembly (31) includes an axial positioning sleeve (311), a threaded hole (312), and a fixing bolt (313). The top of the outer wall of the rotating shaft (2) is provided with an axial positioning sleeve (311). The axial positioning sleeve (311) has a threaded hole (312) inside, and the fixing bolt (313) is threadedly connected inside the threaded hole (312).

3. The portable shield tunnel main bearing gear radial runout detection device according to claim 1, characterized in that, A rectangular socket (321) is fixedly connected to one side of the rotary bushing (32). The surface of the rectangular socket (321) is provided with a threaded hole (322), and a fixing bolt (323) is threaded inside the threaded hole (322).

4. The portable shield tunnel main bearing gear radial runout detection device according to claim 1, characterized in that, The linear slide rail (33) has threaded holes (331) symmetrically opened on one end surface, and grooves (332) symmetrically opened on both sides of the linear slide rail (33).

5. The portable shield tunnel main bearing gear radial runout detection device according to claim 3, characterized in that, The cross-sectional dimensions of the linear slide rail (33) are the same as those of the rectangular socket (321), and the threads of the threaded hole two (322) and the threaded hole three (331) are matched.

6. The portable shield tunnel main bearing gear radial runout detection device according to claim 1, characterized in that, The radial positioning block (34) has an inner protrusion (341) symmetrically arranged on its inner side, and the top of the radial positioning block (34) has a threaded hole (342), and the threaded hole (342) is internally threaded with a fixing bolt (343).

7. The portable shield tunnel main bearing gear radial runout detection device according to claim 1, characterized in that, A slider (4) is installed on the outer side of the radial positioning block (34), and the slider (4) is slidably connected to the linear slide rail (33). The inner wall of the slider (4) is provided with an inner protrusion (41), and the bottom of the slider (4) is fixedly connected to a mounting base (42).

8. The portable shield tunnel main bearing gear radial runout detection device according to claim 7, characterized in that, The bottom of the mounting base (42) is provided with a connecting rod (5). The connecting rod (5) includes a sleeve (51), a sleeve rod (52) and a fixing bolt four (53). The bottom of the mounting base (42) is threadedly connected to the sleeve (51). The sleeve rod (53) is inserted into the inside of the sleeve (51) through the fixing bolt four (52).

9. A portable shield tunnel main bearing gear radial runout detection device according to claim 8, characterized in that, The sleeve (51) has symmetrically opened fixing holes (511) on its surface, and the sleeve rod (53) has uniformly opened insertion holes (531) on its surface, and the diameter of the insertion holes (531) is the same as that of the fixing holes (511).

10. A portable shield tunnel main bearing gear radial runout detection device according to claim 8, characterized in that, A dial indicator (6) is installed at the bottom of the connecting rod (5), a measuring head (61) is installed on one side of the dial indicator (6), and a connecting seat (62) is installed on the other side of the dial indicator (6).

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