A bearing seat eccentricity adjusting device and an adjusting method thereof

Abstract

A bearing seat eccentricity adjusting device, including rotating workbench, concentric ball mechanism, including cover, moving rod, a plurality of ball rod assemblies, the bottom end of the moving rod is inserted into the cover inside and fixedly connected with the top end of the round rod in the plurality of ball rod assemblies, the bottom end of the round rod is fixedly connected with the ball after penetrating through the fixed plate fixed in the cover inside, the balls in the plurality of ball rod assemblies are uniformly arranged on a circle coaxial with the central axis of the moving rod. First, the bearing seat is placed on the rotating workbench, and the lower end of the concentric ball mechanism is inserted into the inner hole of the bearing seat, then the concentric ball mechanism is moved transversely, the distance between the central axis of the moving rod and the center point of the rotating workbench is adjusted to the required eccentricity, and then the moving rod is moved downward to drive the plurality of ball rod assemblies on it to move downward at the same time until the plurality of balls are in close contact with the inner wall of the inner hole of the bearing seat, the eccentricity is quickly and reliably aligned, and the correction efficiency is high.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of gas turbine products, and particularly relates to a bearing seat eccentricity adjusting device and an adjusting method thereof, which are suitable for improving the correction efficiency of bearing seat eccentricity and reducing the load of machine tools and workers. BACKGROUND

[0002] The casing of a gas turbine is an important supporting component of the gas turbine, and a large number of bearing seats exist in the casing parts. The bearing seat is used for assembling a transmission device with a bearing. Since the eccentricity requirement exists between the grinding surface of the bearing seat and the outer circle reference, the current main means is that a worker adjusts the eccentricity between the tooling and the part on a machine tool by knocking and dotting with a dial gauge, and then gradually adjusts the eccentricity to the position manually. However, the adjusting method has extremely low efficiency, and it takes 4-6 hours to correct a single part, and there is an artificial error. Therefore, the eccentricity is often found in the wrong direction. Therefore, the current bearing seat eccentricity correction process has the problems of time-consuming and heavy load of machine tools and workers. SUMMARY

[0003] The application aims at the above problems existing in the prior art, and provides a bearing seat eccentricity adjusting device and an adjusting method thereof, which can improve the correction efficiency and reduce the load of machine tools and workers.

[0004] To achieve the above purpose, the technical scheme of the application is as follows.

[0005] A bearing seat eccentricity adjusting device comprises a rotating workbench, and further comprises a concentric spherical mechanism. The concentric spherical mechanism comprises a cover shell, a moving rod and a plurality of ball rod assemblies. The bottom end of the moving rod is inserted into the inside of the cover shell and is fixedly connected with the top end of the round rod in the plurality of ball rod assemblies. The bottom end of the round rod is fixedly connected with the spherical ball after penetrating through the fixed plate fixed in the inside of the cover shell. The spherical balls in the plurality of ball rod assemblies are uniformly arranged on a circle coaxial with the central axis of the moving rod.

[0006] The adjusting device further comprises an eccentricity adjusting mechanism. The eccentricity adjusting mechanism comprises a moving block and a fixed block. The bottom end of the fixed block is provided with a groove. The inner walls on both sides of the groove are provided with sliding grooves along the length direction of the fixed block. The sliding blocks are fixed on both sides of the moving block and can slide along the sliding grooves. The top end of the cover shell is fixedly connected with the bottom end of the moving block. The side wall of the fixed plate is fixedly connected with the bottom end side wall of the cover shell. The top end of the moving rod is located outside the top end of the fixed block, and the bottom end thereof penetrates through the top end of the fixed block and the moving block in sequence and is fixedly connected with the top end of the round rod in the plurality of ball rod assemblies. The bottom end of the round rod is fixedly connected with the spherical ball after penetrating through the fixed plate.

[0007] The round rod comprises a first rod and a second rod, the top end of the first rod is fixedly connected with the bottom end of the moving rod, the bottom end of the first rod is fixedly connected with the top end of the second rod through the fixed block, and the bottom end of the second rod is fixedly connected with the ball.

[0008] The eccentricity adjusting mechanism further comprises a first push block, a second push block and an adjusting bolt, the first push block is vertically arranged, and a first inclined surface and a second inclined surface are arranged at the bottom end and the top end of the first push block respectively, the first inclined surface is matched with a third inclined surface arranged on the moving block, the second inclined surface is matched with a fourth inclined surface arranged on one end of the second push block, the second push block is horizontally arranged, and the other end of the second push block is abutted with one end of the adjusting bolt, the other end of the adjusting bolt is extended to the outside of the fixed block after penetrating through the threaded hole arranged on the fixed block, and a scale is arranged on the part of the fixed block close to the adjusting bolt.

[0009] The adjusting device further comprises a power mechanism, the power mechanism comprises a driving assembly, a rack track and an L-shaped support, one side of the rack track is drivingly connected with a power gear on the driving assembly, and a helical groove is arranged on the other side of the rack track along the length direction thereof;

[0010] The horizontal plate in the L-shaped support is fixedly connected with the top of the fixed block, the vertical plate in the L-shaped support is fixed on the external support, a vertical sliding groove is arranged in the middle of the vertical plate, a vertical sliding block which can slide along the vertical sliding groove is arranged in the vertical sliding groove, an insertion block which can slide along the helical groove is fixed on the vertical sliding block, and the bottom end of the vertical sliding block is fixedly connected with the top of the moving rod.

[0011] A spring and a moving plate are arranged between the moving rod and the round rod in the plurality of ball rod assemblies, the bottom end of the moving rod is fixedly connected with the top end of the moving plate through the spring, the bottom end of the moving plate is fixedly connected with the top of the round rod in the plurality of ball rod assemblies, a displacement sensor is arranged on the spring, a locking mechanism is arranged on the power gear, the locking mechanism is an electric control bolt, the signal output end of the displacement sensor is connected with the signal input end of the locking mechanism and the driving assembly;

[0012] The displacement sensor is used for detecting the compression amount of the spring in real time and sending a signal to the locking mechanism and the driving assembly when the compression amount of the spring reaches a preset value;

[0013] The locking mechanism is used for locking the power gear after receiving the signal;

[0014] The driving assembly is used for driving the rack track to rotate and stopping after receiving the signal.

[0015] The driving assembly further comprises a motor, a first shaft, a driving bevel gear, a second shaft, a first driven bevel gear, a third shaft, a second driven bevel gear, one end of the output shaft of the motor is in transmission connection with one end of the first shaft, the other end of the first shaft is externally sleeved with the first driving bevel gear, the two sides of the first driving bevel gear are in mesh with the first driven bevel gear externally sleeved on one end of the second shaft and the second driven bevel gear externally sleeved on one end of the third shaft respectively, the power gear is externally sleeved on the other end of the second shaft and is in mesh with the teeth arranged on one side of the rack track, the other end of the third shaft is in transmission connection with the bottom of the rotary workbench, and the third shaft is coaxially arranged with the rotary workbench.

[0016] The adjustment method of the bearing seat eccentricity adjustment device sequentially comprises the following steps:

[0017] S1, placing the bearing seat on the rotary workbench and extending the lower end of the concentric spherical mechanism into the inner hole of the bearing seat;

[0018] S2, moving the concentric spherical mechanism transversely to adjust the distance between the central axis of the moving rod and the center of the rotary workbench until the distance reaches the required eccentricity;

[0019] S3, moving the moving rod downward to drive the plurality of ball rod assemblies thereon to move downward simultaneously until the spherical balls in the plurality of ball rod assemblies simultaneously abut against the inner wall of the inner hole of the bearing seat arranged on the rotary workbench, at this time, the central axis of the moving rod coincides with the center of the inner hole of the bearing seat, and the eccentricity adjustment is completed;

[0020] S4, fixing the bearing seat with the completed eccentricity adjustment on the rotary workbench to avoid loosening of the position of the bearing seat with the completed eccentricity adjustment.

[0021] The adjustment device further comprises an eccentricity adjustment mechanism, the eccentricity adjustment mechanism comprises a moving block and a fixed block, a groove is formed in the bottom end of the fixed block, sliding grooves are formed in the inner walls on both sides of the groove, the sliding grooves are arranged along the length direction of the fixed block, sliding blocks are fixed on both sides of the moving block, the sliding blocks can slide along the sliding grooves, the top end of the cover is fixedly connected with the bottom end of the moving block, the side wall of the fixed plate is fixedly connected with the bottom end side wall of the cover, the top end of the moving rod is located outside the top end of the fixed block, the bottom end of the moving rod sequentially passes through the top end of the fixed block, the moving block and is fixedly connected with the top end of the round rod in the plurality of ball rod assemblies, and the bottom end of the round rod is fixedly connected with the spherical ball after passing through the fixed plate.

[0022] In the step S1, the concentric spherical mechanism is moved transversely by pushing the moving block to slide along the sliding grooves.

[0023] The eccentricity adjusting mechanism further comprises a first push block, a second push block and an adjusting bolt, the first push block is vertically arranged, and a first inclined surface and a second inclined surface are arranged at the top end and the bottom end of the first push block respectively, the first inclined surface is matched with a third inclined surface arranged on the moving block, the second inclined surface is matched with a fourth inclined surface arranged on one end of the second push block, the second push block is horizontally arranged, and the other end of the second push block is abutted with one end of the adjusting bolt, the other end of the adjusting bolt is stretched out to the outside of the fixed block after penetrating through the threaded hole arranged on the fixed block, and the outer wall of the adjusting bolt is matched with the inner wall of the threaded hole through threads, and a scale is installed on the part of the fixed block close to the adjusting bolt;

[0024] In the step S1, the adjusting bolt is screwed in, and the adjusting bolt drives the moving block to move through the first push block and the second push block during the screwing-in process, the moving of the moving block drives the concentric spherical mechanism to move, and the distance between the central axis of the moving rod in the concentric spherical mechanism and the center of the rotary workbench reaches the required eccentricity.

[0025] Compared with the prior art, the beneficial effects of the present application are:

[0026] 1、The bearing seat eccentricity adjusting device comprises a rotary workbench and a concentric spherical mechanism, the concentric spherical mechanism comprises a cover shell, a moving rod and a plurality of ball rod assemblies, the bottom end of the moving rod is fixedly connected with the top end of the round rod in the plurality of ball rod assemblies after being inserted into the inside of the cover shell, the bottom end of the round rod is fixedly connected with the spherical ball after penetrating through the fixed plate fixed in the inside of the cover shell, and the spherical balls in the plurality of ball rod assemblies are uniformly arranged on a circle coaxial with the central axis of the moving rod; the adjusting method based on the adjusting device is as follows: firstly, the bearing seat is placed on the rotary workbench and the lower end of the concentric spherical mechanism is inserted into the inner hole of the bearing seat, then the concentric spherical mechanism is moved horizontally to adjust the distance between the central axis of the moving rod and the center point of the rotary workbench, until the distance reaches the required eccentricity, and then the moving rod is moved downward to drive the plurality of ball rod assemblies on the moving rod to move downward at the same time, until the spherical balls in the plurality of ball rod assemblies are in close contact with the inner wall of the inner hole of the bearing seat arranged on the rotary workbench at the same time, at this time, the central axis of the moving rod is coincident with the center of the inner hole of the bearing seat, indicating that the eccentricity adjustment is completed; the design meets the requirement of quickly and reliably aligning the eccentricity of the bearing seat before being placed on the machine tool through the concentric spherical mechanism, improves the correction efficiency and reduces the load of the machine tool and the workers. Therefore, the present application meets the requirement of quickly and reliably aligning the eccentricity of the bearing seat before being placed on the machine tool, improves the correction efficiency and reduces the load of the machine tool and the workers.

[0027] 2. The bearing seat eccentricity adjustment device of the present invention further includes an eccentricity adjustment mechanism and a power mechanism. The eccentricity adjustment mechanism includes a moving block and a fixed block. The bottom end of the fixed block has a groove, and the inner walls on both sides of the groove have sliding grooves. The sliding grooves are arranged along the length direction of the fixed block. The moving block has sliders fixed on both sides, and the sliders can slide along the sliding grooves. The top end of the cover is fixedly connected to the bottom end of the moving block. The side wall of the fixed plate is fixedly connected to the side wall of the bottom end of the cover. The top end of the moving rod is located outside the top end of the fixed block. Its bottom end passes through the top end of the fixed block and the moving block in sequence and is fixedly connected to the top end of the round rod in the multiple ball rod assemblies. The bottom end of the round rod passes through the fixed plate and is fixedly connected to the round ball. The power mechanism includes a drive assembly, a rack and pinion track, and an L-shaped bracket. One side of the rack and pinion track is connected to the power gear on the drive assembly. The other side of the rack and pinion track has a spiral groove arranged along its length direction. The horizontal plate in the L-shaped bracket is fixedly connected to the top of the fixed block. The vertical plate in the L-shaped bracket is fixed to the outer bracket. The middle part of the vertical plate is opened The design includes a vertical slide groove, inside which is a vertical slider that can slide along the groove. A block that can slide along a spiral groove is fixed to the vertical slider. The bottom end of the vertical slider is fixedly connected to the top of a moving rod. The eccentricity adjustment mechanism works by manually pushing the moving block along the groove, which in turn moves the concentric spherical mechanism laterally, thus adjusting the position of the concentric spherical mechanism based on the eccentricity. The power mechanism works by driving a rack and pinion track to rotate via a drive assembly. The rotation of the rack and pinion track causes the vertical slider to slide along the spiral groove. Since the vertical plate in the L-shaped bracket is fixed to the external bracket, the vertical slider slides downward along the vertical groove on the vertical plate. The downward sliding of the vertical slider drives the moving rod downward until the eccentricity adjustment is completed. This design, on the one hand, achieves position adjustment of the concentric spherical mechanism based on eccentricity through the eccentricity adjustment mechanism, and on the other hand, automatically completes the eccentricity adjustment through the power mechanism, further improving the correction efficiency of the bearing seat eccentricity. Therefore, this invention further improves the correction efficiency of the bearing seat eccentricity. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the L-shaped bracket in this invention.

[0030] Figure 3 This is a schematic diagram of the concentric sphere mechanism in this invention.

[0031] Figure 4 for Figure 2 A schematic diagram of direction A.

[0032] Figure 5 This is a schematic diagram of the eccentricity adjustment mechanism in this invention.

[0033] Figure 6 Figure 1 is a schematic diagram of the structure of the rotating table in the present application.

[0034] Figure 7 Figure 2 is a schematic diagram of the structure of the power gear in the present application.

[0035] Figure 8 Figure 3 is a schematic diagram of the working of Example 1 before adjustment of eccentricity.

[0036] Figure 9 Figure 4 is a schematic diagram of the working of Example 1 in adjustment of eccentricity.

[0037] Figure 10 Figure 5 is a schematic diagram of the working of Example 1 after adjustment of eccentricity.

[0038] In the above figure, rotating table 1, concentric spherical mechanism 2, cover 21, moving rod 22, spherical rod assembly 23, round rod 231, spherical ball 232, first rod 233, second rod 234, eccentricity adjustment mechanism 3, moving block 31, sliding block 311, fixed block 32, recess 321, sliding groove 322, first push block 33, first inclined surface 331, second inclined surface 332, second push block 34, adjusting bolt 35, scale 36, fixed plate 37, power mechanism 4, driving assembly 41, power gear 411, motor 412, first shaft 413, driving bevel gear 414, second shaft 415, first driven bevel gear 416, third shaft 417, second driven bevel gear 418, rack track 42, helical groove 421, L-shaped support 43, horizontal plate 431, vertical plate 432, vertical sliding groove 433, vertical sliding block 434, insertion block 44, spring 45, fixed plate 46, displacement sensor 47, locking mechanism 48, bearing seat 5. DETAILED DESCRIPTION

[0039] The present application will be further described in detail below in conjunction with specific embodiments and the accompanying drawings.

[0040] Reference Figures 1 to 10 A bearing seat eccentricity adjustment device, comprising a rotating table 1, the adjustment device further comprising a concentric spherical mechanism 2, the concentric spherical mechanism 2 comprising a cover 21, a moving rod 22, a plurality of spherical rod assemblies 23, the bottom end of the moving rod 22 being inserted into the inside of the cover 21 and being fixedly connected to the top end of the round rod 231 in the plurality of spherical rod assemblies 23, the bottom end of the round rod 231 being fixedly connected to the spherical ball 232 after passing through the fixed plate 37 fixed in the inside of the cover 21, the spherical balls 232 in the plurality of spherical rod assemblies 23 being uniformly arranged on a circle coaxial with the axis of the moving rod 22.

[0041] The adjusting device further comprises an eccentricity adjusting mechanism 3, the eccentricity adjusting mechanism 3 comprises a moving block 31 and a fixed block 32, a recess 321 is formed in the bottom end of the fixed block 32, slide grooves 322 are formed in the inner walls on both sides of the recess 321, the slide grooves 322 are arranged along the length direction of the fixed block 32, slide blocks 311 are fixed on both sides of the moving block 31, the slide blocks 311 can slide in the slide grooves 322, the top end of the cover 21 is fixedly connected with the bottom end of the moving block 31, the side wall of the fixed plate 37 is fixedly connected with the bottom end side wall of the cover 21, the top end of the moving rod 22 is located outside the top end of the fixed block 32, the bottom end of the moving rod 22 sequentially passes through the top end of the fixed block 32, the moving block 31 and is fixedly connected with the top end of a round rod 231 in a plurality of ball rod assemblies 23, the bottom end of the round rod 231 is fixedly connected with a ball 232 after passing through the fixed plate 37.

[0042] The round rod 231 comprises a first rod 233 and a second rod 234, the top end of the first rod 233 is fixedly connected with the bottom end of the moving rod 22, the bottom end of the first rod 233 is fixedly connected with the top end of the second rod 234 after passing through the fixed block 32, the bottom end of the second rod 234 is fixedly connected with the ball 232, the first rods 233 in the plurality of ball rod assemblies 23 are uniformly arranged on a first conical surface, the second rods 234 in the plurality of ball rod assemblies 23 are uniformly arranged on a second conical surface, the included angle between the first conical surface and the central axis of the moving block 31 is smaller than the included angle between the second conical surface and the central axis of the moving block 31.

[0043] The eccentricity adjusting mechanism 3 further comprises a first push block 33, a second push block 34 and an adjusting bolt 35, the first push block 33 is vertically arranged, a first inclined surface 331 and a second inclined surface 332 are arranged at the bottom end and the top end of the first push block 33 respectively, the first inclined surface 331 is matched with a third inclined surface arranged on the moving block 31, the second inclined surface 332 is matched with a fourth inclined surface arranged on one end of the second push block 34, the second push block 34 is horizontally arranged, the other end of the second push block 34 abuts with one end of the adjusting bolt 35, the other end of the adjusting bolt 35 passes through a threaded hole formed in the fixed block 32 and extends to the outside of the fixed block 32, a scale 36 is installed on the part of the fixed block 32 close to the adjusting bolt 35.

[0044] The adjusting device further comprises a power mechanism 4, the power mechanism 4 comprises a driving assembly 41, a rack track 42 and an L-shaped support 43, one side of the rack track 42 is in transmission connection with a power gear 411 on the driving assembly 41, a helical groove 421 is arranged on the other side of the rack track 42 along the length direction thereof;

[0045] The horizontal plate 431 in the L-shaped support 43 is fixedly connected with the top of the fixed block 32, the vertical plate 432 in the L-shaped support 43 is fixed on the external support, a vertical sliding groove 433 is formed in the middle of the vertical plate 432, a vertical sliding block 434 which can slide along the vertical sliding groove 433 is arranged in the vertical sliding groove 433, the vertical sliding block 434 is fixedly connected with the plug block 44 which can slide along the spiral groove 421, and the bottom end of the vertical sliding block 434 is fixedly connected with the top of the moving rod 22.

[0046] The moving rod 22 and the round rod 231 in the plurality of ball rod assemblies 23 are provided with the spring 45 and the moving plate 46, the bottom end of the moving rod 22 is fixedly connected with the top end of the moving plate 46 through the spring 45, the bottom end of the moving plate 46 is fixedly connected with the top of the round rod 231 in the plurality of ball rod assemblies 23, the spring 45 is provided with the displacement sensor 47, the power gear 411 is provided with the locking mechanism 48, the locking mechanism 48 is an electric control bolt, the signal output end of the displacement sensor 47 is connected with the signal input end of the locking mechanism 48 and the driving assembly 41;

[0047] The displacement sensor 47 is used for detecting the compression amount of the spring 45 in real time and sending a signal to the locking mechanism 48 and the driving assembly 41 when the compression amount of the spring 45 reaches a preset value.

[0048] The locking mechanism 48 is used for locking the power gear 411 after receiving the signal.

[0049] The driving assembly 41 is used for driving the rack track 42 to rotate and stopping after receiving the signal.

[0050] The driving assembly 41 further comprises a motor 412, a first shaft 413, a driving bevel gear 414, a second shaft 415, a first driven bevel gear 416, a third shaft 417 and a second driven bevel gear 418, the output shaft of the motor 412 is in transmission connection with one end of the first shaft 413, the other end of the first shaft 413 is externally sleeved with the first driving bevel gear 414, the first driving bevel gear 414 is in mesh with the first driven bevel gear 416 which is sleeved on the other end of the second shaft 415 and the second driven bevel gear 418 which is sleeved on the other end of the third shaft 417, the power gear 411 is sleeved on the other end of the second shaft 415, the power gear 411 is in mesh with the teeth arranged on one side of the rack track 42, the other end of the third shaft 417 is in transmission connection with the bottom of the rotary workbench 1, and the third shaft 417 is coaxially arranged with the rotary workbench 1.

[0051] The adjustment method of the bearing seat eccentricity adjustment device comprises the following steps in sequence:

[0052] S1, the bearing seat 5 is placed on the rotating workbench 1, and the lower end of the concentric spherical mechanism 2 is inserted into the inner hole of the bearing seat 5;

[0053] S2, the concentric spherical mechanism 2 is moved transversely to adjust the distance between the axis in the moving rod 22 and the center of the rotating workbench 1 until the distance reaches the required eccentricity;

[0054] S3, the moving rod 22 is moved downward to drive the plurality of ball rod assemblies 23 thereon to move downward simultaneously until the spherical balls 232 in the plurality of ball rod assemblies 23 simultaneously fit the inner wall of the inner hole of the bearing seat 5 arranged on the rotating workbench 1, at this time, the axis in the moving rod 22 coincides with the center of the inner hole of the bearing seat 5, and the eccentricity adjustment is completed;

[0055] S4, the bearing seat 5 with the completed eccentricity adjustment is fixed on the rotating workbench 1 to avoid loosening.

[0056] The adjusting device further comprises an eccentricity adjusting mechanism 3, the eccentricity adjusting mechanism 3 comprises a moving block 31 and a fixed block 32, a recess 321 is formed in the bottom end of the fixed block 32, slide grooves 322 are formed in the inner walls on both sides of the recess 321, the slide grooves 322 are arranged along the length direction of the fixed block 32, slide blocks 311 are fixed on both sides of the moving block 31, the slide blocks 311 can slide along the slide grooves 322, the top end of the cover 21 is fixedly connected with the bottom end of the moving block 31, the side wall of the fixed plate 37 is fixedly connected with the bottom end side wall of the cover 21, the top end of the moving rod 22 is located outside the top end of the fixed block 32, and the bottom end of the moving rod 22 is sequentially fixedly connected with the top end of the circular rod 231 in the plurality of ball rod assemblies 23 after penetrating through the top end of the fixed block 32 and the moving block 31, and the bottom end of the circular rod 231 is fixedly connected with the spherical ball 232 after penetrating through the fixed plate 37;

[0057] In the step S1, the moving block 31 is pushed to slide along the slide grooves 322 to move the concentric spherical mechanism 2 transversely.

[0058] The adjusting device further comprises a power mechanism 4, the power mechanism 4 comprises a driving assembly 41, a rack track 42 and an L-shaped support 43, one side of the rack track 42 is in transmission connection with a power gear 411 on the driving assembly 41, and a spiral groove 421 is arranged on the other side of the rack track 42 along the length direction thereof;

[0059] The horizontal plate 431 in the L-shaped support 43 is fixedly connected with the top of the fixed block 32, the vertical plate 432 in the L-shaped support 43 is fixed on the external support, a vertical sliding slot 433 is arranged in the middle of the vertical plate 432, a vertical sliding block 434 which can slide along the vertical sliding slot 433 is arranged in the vertical sliding slot 433, the vertical sliding block 434 is fixedly connected with the top of the moving rod 22.

[0060] In the step S2, the driving assembly 41 is started to drive the rack track 42 to rotate, the rack track 42 drives the vertical sliding block 434 to slide downwards along the vertical sliding slot 433, and the vertical sliding block 434 drives the moving rod 22 to move downwards.

[0061] Embodiment 1:

[0062] Referring to Figure 1The utility model provides an eccentricity adjusting device of bearing seat, including rotating workbench 1, concentric circle ball mechanism 2, eccentricity adjusting mechanism 3, power mechanism 4, concentric circle ball mechanism 2 includes cover 21, moving rod 22, a plurality of ball rod assembly 23, eccentricity adjusting mechanism 3 includes moving block 31, fixed block 32, fixed plate 37, power mechanism 4 includes drive assembly 41, rack track 42, L-shaped support 43, one side of rack track 42 is connected with power gear 411 in drive assembly 41 transmission, the other side on rack track 42 is provided with helical slot 421 along its length direction, the power gear 411 is provided with the lock mechanism 48, the lock mechanism 48 is electric control bolt, the horizontal board 431 in L-shaped support 43 is fixedly connected with the top of fixed block 32, the bottom of fixed block 32 is provided with recess 321, the both sides inner wall of recess 321 is provided with slide groove 322, and slide groove 322 is provided along the length direction of fixed block 32, moving block 31 is arranged in recess 321, and its bottom is fixedly connected with the top of cover 21, and the both sides are fixedly connected with sliding block 311, and sliding block 311 can slide along slide groove 322, the vertical board 432 in L-shaped support 43 is fixed on the outer support, the middle part of vertical board 432 is provided with vertical slide groove 433, and vertical slide groove 433 is provided with vertical sliding block 434, and vertical sliding block 434 is fixedly connected with the top of moving rod 22, and the bottom of vertical sliding block 434 is fixedly connected with the top of moving rod 22, and the bottom of moving rod 22 is inserted into the top inside of cover 21 in sequence through horizontal board 431, the top of fixed block 32, moving block 31 and is fixedly connected with the one end of spring 45, and the other end of spring 45 is fixedly connected with the top of round rod 231 in a plurality of ball rod assembly 23 through moving plate 46, and spring 45 is provided with displacement sensor 47, and the signal output end of displacement sensor 47 is connected with the signal input end of lock mechanism 48 and drive assembly 41, and the side wall of cover 21 bottom is fixedly connected with the side wall of fixed plate 37, and ball rod assembly 23 also includes round ball 232, and the bottom of round rod 231 is fixedly connected with round ball 232 after passing through fixed plate 37 fixed in cover 21, and the round ball 232 in a plurality of ball rod assembly 23 is evenly arranged on a circle coaxial with the central axis of moving rod 22;

[0063] The adjusting method of the above-mentioned eccentricity adjusting device of bearing seat is specifically performed according to the following steps:

[0064] S1, place the bearing seat 5 on the rotating workbench 1 and extend the lower end of the concentric circle ball mechanism 2 into the inner hole of the bearing seat 5, at this time, the position of the bearing seat 5 relative to the rotating workbench 1 can be moved;

[0065] S2, by pushing the moving block 31 along the sliding groove 322, the concentric circle ball mechanism 2 is moved laterally until the distance between the axis of the moving rod 22 and the center of the rotary workbench 1 reaches the required eccentricity, see Figure 8 At this time, the center point of the rotary workbench 1 is point A, the landing point of the axis of the moving rod 22 is point B, and the center point of the inner hole of the bearing seat 5 is point C. The distance between points A and B is the eccentricity;

[0066] S3, see Figure 9 , start the driving assembly 41 to drive the rack track 42 to rotate, which drives the vertical sliding block 434 to slide downward along the vertical sliding groove 433, and the downward sliding of the vertical sliding block 434 drives the moving rod 22 to move downward against the elastic force of the spring 45. The downward movement of the moving rod 22 drives the multiple ball rod assemblies 23 on it to move downward at the same time, so that the diameter of the circle where the spherical ball 232 in the multiple ball rod assemblies 23 is located increases and expands outward. In this process, the displacement sensor 47 detects the compression amount of the spring 45 in real time;

[0067] S4, see Figure 10 When the displacement sensor 47 detects that the compression amount of the spring 45 reaches the preset value, at this time, the spherical ball 232 in the multiple ball rod assemblies 23 is in contact with the inner wall of the inner hole of the bearing seat 5 arranged on the rotary workbench 1, and the axis of the moving rod 22 coincides with the center point of the inner hole of the bearing seat 5, that is, points B and C coincide, and the eccentricity adjustment is completed.

[0068] S5, the displacement sensor 47 sends a signal to the locking mechanism 48, the driving assembly 41 and the alarm mechanism. After receiving the signal, the locking mechanism 48 locks the power gear 411. After receiving the signal, the driving assembly 41 stops. The alarm mechanism emits a prompt sound or continuous flashing. After receiving the prompt, the operator fixes the bearing seat 5 on the rotary workbench 1 through bolts and clamping plates to prevent displacement after the eccentricity adjustment is completed.

[0069] Example 2:

[0070] The difference between example 1 and example 2 is:

[0071] see Figure 5The eccentricity adjusting mechanism 3 further comprises a first push block 33, a second push block 34 and an adjusting bolt 35. The first push block 33 is vertically arranged and has a first inclined surface 331 and a second inclined surface 332 arranged at the bottom end and the top end respectively. The first inclined surface 331 is matched with the third inclined surface arranged on the moving block 31. The second inclined surface 332 is matched with the fourth inclined surface arranged on one end of the second push block 34. The second push block 34 is horizontally arranged and has the other end abutting with one end of the adjusting bolt 35. The other end of the adjusting bolt 35 extends out of the fixed block 32 after penetrating the threaded hole arranged on the fixed block 32. A scale 36 is arranged on the fixed block 32 near the adjusting bolt 35.

[0072] According to the scale arranged on the scale 36, the adjusting bolt 35 is screwed in. The movement of the adjusting bolt 35 drives the moving block 31 to move horizontally along the sliding groove 322 through the first push block 33 and the second push block 34, so as to realize the eccentricity setting. A reset spring can be arranged on the adjusting bolt 35.

[0073] Embodiment 3

[0074] The difference from embodiment 1 is that:

[0075] Referring to Figure 3 The round rod 231 comprises a first rod 233 and a second rod 234. The top end of the first rod 233 is fixedly connected with the bottom end of the moving rod 22. The bottom end of the first rod 233 penetrates the fixed block 32 and is fixedly connected with the top end of the second rod 234. The bottom end of the second rod 234 is fixedly connected with the round ball 232. The first rods 233 in the plurality of ball rod assemblies 23 are uniformly arranged on the first conical surface. The second rods 234 in the plurality of ball rod assemblies 23 are uniformly arranged on the second conical surface. The included angle between the first conical surface and the central axis of the moving block 31 is smaller than the included angle between the second conical surface and the central axis of the moving block 31.

[0076] Embodiment 4

[0077] The difference from embodiment 1 is that:

[0078] Referring to Figure 1The driving assembly 41 further comprises a motor 412, a first shaft 413, a driving bevel gear 414, a second shaft 415, a first driven bevel gear 416, a third shaft 417, and a second driven bevel gear 418. An output shaft of the motor 412 is in transmission connection with one end of the first shaft 413. The other end of the first shaft 413 is externally sleeved with the first driving bevel gear 414. The first driving bevel gear 414 is in mesh with the first driven bevel gear 416 sleeved on one end of the second shaft 415 and the second driven bevel gear 418 sleeved on one end of the third shaft 417. The power gear 411 is sleeved on the other end of the second shaft 415 and is in mesh with the teeth arranged on one side of the rack track 42. The other end of the third shaft 417 is in transmission connection with the bottom of the rotary workbench 1, and the third shaft 417 is coaxially arranged with the rotary workbench 1.

Claims

1. A bearing housing eccentricity adjustment device, comprising a rotary worktable (1), characterized in that: The adjustment device also includes a concentric sphere mechanism (2), which includes a cover (21), a moving rod (22), and multiple ball rod assemblies (23). The bottom end of the moving rod (22) is inserted into the inside of the cover (21) and then fixedly connected to the top end of the round rod (231) in the multiple ball rod assemblies (23). The bottom end of the round rod (231) passes through the fixing plate (37) fixed inside the cover (21) and is fixedly connected to the sphere (232). The spheres (232) in the multiple ball rod assemblies (23) are evenly arranged on a circle coaxial with the central axis of the moving rod (22). The adjustment device further includes an eccentricity adjustment mechanism (3), which includes a moving block (31) and a fixed block (32). The bottom end of the fixed block (32) is provided with a groove (321), and the inner walls on both sides of the groove (321) are provided with sliding grooves (322). The sliding grooves (322) are arranged along the length direction of the fixed block (32). Sliding blocks (311) are fixed on both sides of the moving block (31), and the sliding blocks (311) can slide along the sliding grooves (322). The top end of the cover (21) is fixedly connected to the bottom end of the moving block (31), the side wall of the fixing plate (37) is fixedly connected to the bottom side wall of the cover (21), the top end of the moving rod (22) is located outside the top end of the fixing block (32), and its bottom end passes through the top end of the fixing block (32) and the moving block (31) in sequence and is fixedly connected to the top end of the round rod (231) in the multiple club assemblies (23), and the bottom end of the round rod (231) passes through the fixing plate (37) and is fixedly connected to the round ball (232); The round rod (231) includes a first rod (233) and a second rod (234). The top end of the first rod (233) is fixedly connected to the bottom end of the moving rod (22). The bottom end of the first rod (233) passes through the fixed plate (37) and is fixedly connected to the top end of the second rod (234). The bottom end of the second rod (234) is fixedly connected to the sphere (232). The first rod (233) in the plurality of rod assemblies (23) is evenly arranged on the first conical surface. The second rod (234) in the plurality of rod assemblies (23) is evenly arranged on the second conical surface. The angle between the first conical surface and the central axis of the moving block (31) is smaller than the angle between the second conical surface and the central axis of the moving block (31). The eccentricity adjustment mechanism (3) further includes a first push block (33), a second push block (34), and an adjusting bolt (35). The first push block (33) is vertically arranged, with a first inclined surface (331) and a second inclined surface (332) respectively at its bottom and top. The first inclined surface (331) cooperates with the third inclined surface on the moving block (31), and the second inclined surface (332) cooperates with the fourth inclined surface on one end of the second push block (34). The second push block (34) is horizontally arranged, with its other end abutting against one end of the adjusting bolt (35). The other end of the adjusting bolt (35) passes through the threaded hole on the fixed block (32) and extends to the outside of the fixed block (32). A scale (36) is installed on the fixed block (32) near the adjusting bolt (35). The adjustment device also includes a power mechanism (4), which includes a drive assembly (41), a rack and pinion track (42), and an L-shaped bracket (43). One side of the rack and pinion track (42) is connected to the power gear (411) on the drive assembly (41), and a spiral groove (421) is provided on the other side of the rack and pinion track (42) along its length direction. The horizontal plate (431) in the L-shaped bracket (43) is fixedly connected to the top of the fixing block (32). The vertical plate (432) in the L-shaped bracket (43) is fixed on the external bracket. A vertical groove (433) is provided in the middle of the vertical plate (432). A vertical slider (434) that can slide along the vertical groove (433) is provided inside the vertical groove (433). An insert (44) that can slide along the spiral groove (421) is fixed on the vertical slider (434). The bottom end of the vertical slider (434) is fixedly connected to the top of the moving rod (22). A spring (45) and a moving plate (46) are provided between the moving rod (22) and the round rod (231) in the multiple cue assemblies (23). The bottom end of the moving rod (22) is fixedly connected to the top end of the moving plate (46) through the spring (45). The bottom end of the moving plate (46) is fixedly connected to the top end of the round rod (231) in the multiple cue assemblies (23). A displacement sensor (47) is provided on the spring (45). A locking mechanism (48) is provided on the power gear (411). The locking mechanism (48) is an electrically controlled pin. The signal output end of the displacement sensor (47) is connected to the signal input end of the locking mechanism (48) and the drive assembly (41). The displacement sensor (47) is used to detect the compression of the spring (45) in real time and send a signal to the locking mechanism (48) and the drive assembly (41) when the compression of the spring (45) reaches a preset value. The locking mechanism (48) is used to lock the power gear (411) after receiving a signal; The drive assembly (41) is used to drive the rack and pinion track (42) to rotate and to stop after receiving a signal.

2. The bearing housing eccentricity adjustment device according to claim 1, characterized in that: The drive assembly (41) further includes a motor (412), a first shaft (413), a first driving bevel gear (414), a second shaft (415), a first driven bevel gear (416), a third shaft (417), and a second driven bevel gear (418). The output shaft of the motor (412) is connected to one end of the first shaft (413). The other end of the first shaft (413) is externally fitted with the first driving bevel gear (414). The two sides of the first driving bevel gear (414) are respectively connected to the fitted bevel gear. The first driven bevel gear (416) outside one end of the second shaft (415) meshes with the second driven bevel gear (418) sleeved outside one end of the third shaft (417). The power gear (411) is sleeved outside the other end of the second shaft (415). The power gear (411) meshes with the teeth set on one side of the rack and pinion track (42). The other end of the third shaft (417) is connected to the bottom of the rotary table (1) for transmission. The third shaft (417) and the rotary table (1) are coaxially arranged.

3. The adjustment method of the bearing housing eccentricity adjustment device according to claim 1, characterized in that... : The adjustment method is performed in the following steps: S1. Place the bearing housing (5) on the rotary table (1) and insert the lower end of the concentric ball mechanism (2) into the inner hole of the bearing housing (5); S2. Laterally move the concentric ball mechanism (2) to adjust the distance between the central axis of the moving rod (22) and the center of the rotary table (1) until the distance reaches the required eccentricity. S3. Move the moving rod (22) downward to drive the multiple ball club assemblies (23) on it to move downward simultaneously until the balls (232) in the multiple ball club assemblies (23) are in contact with the inner wall of the bearing seat (5) on the rotary table (1). At this time, the central axis of the moving rod (22) coincides with the center of the bearing seat (5), and the eccentricity adjustment is completed. S4. Fix the bearing seat (5) after the eccentricity adjustment is completed on the rotary table (1) to prevent the bearing seat (5) from becoming loose after the eccentricity adjustment is completed.

4. The adjustment method of the bearing housing eccentricity adjustment device according to claim 3, characterized in that... : In step S1, the concentric ball mechanism (2) is moved laterally by pushing the moving block (31) to slide along the slide groove (322).

5. The adjustment method of the bearing housing eccentricity adjustment device according to claim 4, characterized in that... : In step S2, the start drive assembly (41) drives the rack and pinion track (42) to rotate. The rotation of the rack and pinion track (42) drives the vertical slider (434) to slide downward along the vertical groove (433). The downward sliding of the vertical slider (434) drives the moving rod (22) to move downward.

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