CN116379867A

CN116379867A - Hole position gauge for support bearing bracket

Info

Publication number: CN116379867A
Application number: CN202310625473.XA
Authority: CN
Inventors: 张长权; 钟新文; 郭艳玲
Original assignee: Zhaoqing Fengchi Precision Metalwork Co ltd
Current assignee: Zhaoqing Fengchi Precision Metalwork Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-07-04
Anticipated expiration: 2043-05-30
Also published as: CN116379867B

Abstract

The invention relates to the technical field of hole site detection tools and discloses a support bearing bracket hole site detection tool which comprises a fixed sleeve, a shaft sleeve, a ratchet wheel force measurement device and a first measuring head, wherein a plurality of first telescopic columns are connected to the outer wall of the first measuring head in a sliding mode, a first extension claw is connected to the other ends of the first telescopic columns in a rotating mode, a second measuring head is connected to one end, close to the fixed sleeve, of the first measuring head, the outer wall of the first measuring head is connected to the inner wall of the second measuring head in a sliding mode, a plurality of second telescopic columns matched with the first telescopic columns are connected to the outer wall of the second measuring head in a sliding mode, claw grooves are formed in the other ends of the second telescopic columns, three second extension claws are connected to the inner wall data of the claw grooves, and one sides, far away from the second extension claws, of the second telescopic columns are connected to the first extension claws in a sliding mode respectively. The hole site gauge for the support bearing bracket can also measure the bearing bracket with larger size under the condition that a device does not need to be replaced by adding the second measuring head, the second extension claw and the second telescopic column.

Description

Hole position gauge for support bearing bracket

Technical Field

The invention relates to the technical field of hole position gauge, in particular to a hole position gauge for a support bearing bracket.

Background

The bearing support is also called a bearing seat, and is mainly used for providing a supporting point for a bearing, and the bearing seat is widely used in the automobile industry, for example, supports the bearing between wheels, but the brand, the model and the type of the automobile are different, so that the sizes of the bearings are different, and the hole positions of the bearing support are required to be detected in order to detect whether the selected bearing seat is matched with the bearing to be supported.

The prior hole site check tool for the bearing bracket is as follows: the utility model provides a measurement micrometer minute card is grabbed to three-jaw high accuracy mechanical three-point type internal measurement aperture holes of standing grain wood measuring instrument special store's of standing grain wood sell, it has following advantage:

1. the method is suitable for measuring through holes/blind holes;

2. the matched ring gauge is used for correcting the micrometer;

3. an alloy measuring surface for measuring the precision aperture;

4. the hand feeling is comfortable, and the ratchet force measuring device;

5. the scale is clear, and the laser lines are four times.

However, when the aperture is actually measured, the measuring range is only 5mm, when the aperture to be measured is larger, only a new measuring device or measuring head can be replaced, and the size of the aperture is not easy for a worker to intuitively judge that the size of the aperture takes the corresponding size model, so that the time spent by the worker in measuring is wasted in an intangible way in actual use, and the working efficiency is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a hole site gauge for a support bearing bracket, which at least solves one of the problems proposed by the background art, such as: the user can more conveniently and quickly change the measuring head.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a support bearing support hole site gauge, including fixed sleeve, install the axle sleeve at fixed sleeve both ends, the ratchet dynamometry and install a gauge head in the axle sleeve other end, the outer wall sliding connection of a gauge head has a plurality of extension posts, the other end of a plurality of extension posts all rotates and is connected with an extension claw, a gauge head is close to fixed sleeve's one end and is connected with No. two gauge heads, the outer wall of a gauge head and the inner wall sliding connection of No. two gauge heads, the outer wall sliding connection of No. two gauge heads has a plurality of and the extension post of No. two extension posts of a telescopic post matching, the claw groove has all been seted up to the other end of a plurality of No. two extension posts, the inner wall according to all being connected with of a plurality of claw groove has No. three extension claw, one side that No. two extension claws were kept away from respectively with an extension claw sliding connection, no. two outer wall sliding connection of gauge head has the snap ring, the bottom surface and the No. two extension claw outer wall connection of uppermost of the snap ring.

Further, a plurality of L-shaped sliding grooves are formed in the outer wall of the first measuring head, a plurality of sliding blocks are fixedly connected to the inner wall of the second measuring head, and the plurality of sliding blocks are respectively and slidably connected with one L-shaped sliding groove.

Further, the outer wall fixedly connected with of axle sleeve keeps off the lid, keeps off the inner wall of lid and the outer wall sliding connection of No. two gauge heads, keeps off the upper surface of lid and wears to establish and sliding connection has a plurality of limiting plates, keeps off the bottom surface fixedly connected with No. two springs of lid, no. two gauge heads's upper surface has seted up the draw-in groove, limiting plate and draw-in groove sliding connection, a plurality of No. two springs keep away from the one end of keeping off the lid and No. two gauge heads's upper surface sliding connection.

Further, one side of the claw grooves, which is close to the second extension claw, is rotationally connected with three connecting blocks, the three connecting blocks are fixedly connected with the bottom surface of the second extension claw respectively, and one side, which is far away from the connecting blocks, of the third extension claw is rotationally connected with a plurality of rolling shafts.

Further, a plurality of buckle plates are fixedly connected with one sides of the limiting plates, which are far away from the second measuring head, a plurality of buckle grooves are formed in the upper surface of the retaining cover, and the bottom surfaces of the buckle grooves are matched with the buckle plates and are in sliding connection.

Further, two slide rail grooves are formed in the inner walls of the plurality of claw grooves, limiting slide rails are fixedly connected to the upper surfaces of two second extension claws located below in the same claw groove, supporting rods are rotatably connected to the bottom surfaces of the two second extension claws located above in the same claw groove, the two supporting rods are respectively connected with the two limiting slide rails in a sliding mode, four elastic blocks are fixedly connected to the outer walls of the two limiting slide rails, the four elastic blocks are respectively located on two sides of the limiting slide rails, and the limiting slide rails are connected with the slide rail grooves in a clamping mode through the four elastic blocks.

Further, the bottom surface fixedly connected with a plurality of briquetting and dysmorphism inserted block of snap ring, the bottom surface of briquetting offsets with the No. two extension claw upper surfaces of claw inslot uppermost, and the dysmorphism groove has been seted up to the No. two extension claw upper surfaces of claw inslot uppermost, dysmorphism inserted block's outer wall and dysmorphism groove sliding connection.

Further, two limit grooves which are symmetrically arranged are formed in one side, far away from the fixed sleeve, of the L-shaped sliding groove, two of the sliding blocks penetrate through the limit grooves, the inner wall of each telescopic groove is connected with a telescopic assembly, and two ends of each telescopic assembly are respectively connected with the second measuring head and the L-shaped sliding groove in a sliding mode.

Further, the telescopic assembly comprises a limiting head, one end of the limiting head, which is far away from the second measuring head, is in sliding connection with the L-shaped sliding groove and the telescopic groove, one side of the limiting head, which is far away from the L-shaped sliding groove, is fixedly connected with a sliding rod, and the other end of the sliding rod penetrates through the second measuring head and is fixedly connected with a pulling rod.

Further, one side that the spacing head kept away from L shape spout fixedly connected with spring, the other end fixedly connected with baffle of spring, the opposite side of baffle and the inner wall fixed connection of No. two gauge heads, no. two gauge heads and the junction of pulling out the pole have been seted up and have been accomodate the groove, and the slide bar runs through the baffle and offsets with the bottom surface of accomodating the groove, and the slide bar is located spring, and the length of pulling out the pole is not greater than the length of accomodating the groove.

Compared with the prior art, the invention has the following beneficial effects:

the hole site gauge for the support bearing bracket can also measure the bearing bracket with larger size under the condition that a device does not need to be replaced by adding the second measuring head, the second extension claw and the second telescopic column.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present invention;

FIG. 2 is a schematic diagram of a structure of a first measuring head and a second measuring head separated from each other;

FIG. 3 is a schematic bottom view of a three-dimensional structure of a second gauge head according to the present invention;

FIG. 4 is a schematic front view of a three-dimensional structure of a second gauge head according to the present invention;

FIG. 5 is a schematic cross-sectional elevation view of a second gauge head according to the present invention;

FIG. 6 is an enlarged schematic view of the telescopic assembly of the present invention;

FIG. 7 is an enlarged schematic view of the structure A in FIG. 1 according to the present invention;

FIG. 8 is an enlarged schematic view of the structure of FIG. 4B according to the present invention;

fig. 9 is an enlarged schematic view of the structure at C in fig. 4 according to the present invention.

In the figure: 1. a fixed sleeve; 2. a shaft sleeve; 3. measuring force by a ratchet wheel; 4. a first measuring head; 401. an L-shaped chute; 402. a limit groove; 5. a second measuring head; 501. a storage groove; 502. a clamping groove; 6. a first extension claw; 7. a blocking cover; 701. a buckling groove; 8. pulling out a rod; 9. an elastic block; 10. a first telescopic column; 11. a positioning head; 12. a slide block; 1201. a telescopic slot; 13. a second telescopic column; 1301. a claw groove; 1302. a slide rail groove; 14. a buckle plate; 15. a limiting plate; 16. a baffle; 17. a slide bar; 18. a first spring; 19. a second spring; 20. a clasp; 21. extension claw number two; 2101. a special-shaped groove; 22. a support rod; 23. a connecting block; 24. a limit sliding rail; 25. a roller; 26. briquetting; 27. and (5) a special-shaped plug block.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-9, a hole site detection tool for a support bearing bracket comprises a fixed sleeve 1, a shaft sleeve 2 arranged at two ends of the fixed sleeve 1, a ratchet force measuring device 3 and a first measuring head 4 arranged at the other end of the shaft sleeve 2, wherein a plurality of first telescopic columns 10 are slidably connected to the outer wall of the first measuring head 4, a first extending claw 6 is rotatably connected to the other end of the first telescopic columns 10, a second measuring head 5 is connected to one end, close to the fixed sleeve 1, of the first measuring head 4, the outer wall of the first measuring head 4 is slidably connected with the inner wall of the second measuring head 5, a plurality of second telescopic columns 13 matched with the first telescopic columns 10 are slidably connected to the outer wall of the second measuring head 5, claw grooves 1301 are formed in the other ends of the second telescopic columns 13, three second extending claws 21 are connected to the inner wall data of the claw grooves 1301, one sides, far away from the second extending claws 21, of the second telescopic columns 13 are slidably connected with the first extending claws 6 respectively, a clamping ring 20 is slidably connected to the outer wall of the second measuring head 5, and the bottom surface of the clamping ring 20 is connected with the outer wall of the uppermost second extending claw 21.

The hole position detector for the support bearing bracket is similar to the existing hole position detector in structure, such as 'three-jaw high-precision mechanical three-point inner diameter measuring hole inner diameter grab measuring micrometer split clamp' sold by special store of He wood measuring instrument in Beijing dong, the main improvement of the invention is that a user can more conveniently and rapidly replace a measuring head, as shown in figures 1 to 9, when the hole position detector for the support bearing bracket is used, firstly, a bearing bracket to be detected is placed at a table top or any other position convenient to measure, then a shaft sleeve 2 is picked up by hand, a measuring head 4 is placed in a hole of the bearing bracket to be measured, a ratchet wheel force measuring 3 is rotated, a telescopic column 10 and an extension jaw 6 are pushed outwards after the ratchet wheel force measuring 3 is rotated, so that the ratchet wheel force measuring 3 is extruded with the inner diameter wall of the bearing bracket, when the ratchet wheel force measuring 3 is sensed to be unable to rotate, at this time, the length of the first measuring head 4, the first telescopic column 10 and the first extending claw 6 is fixed by readable reading values on the fixed sleeve 1, for example, the length of the first measuring head 4 is 20mm, the length of the first telescopic column 10 and the first extending claw 6 is 5mm, the bearing bracket at this time can only detect the diameter of 25mm at most under the measurement of the first measuring head 4, the first telescopic column 10 and the first extending claw 6, originally, when the diameter of the bearing bracket is larger, only a new measuring device can be replaced, when the second measuring head 5 is additionally arranged above the first measuring head 4, firstly, the inner wall of the second measuring head 5 is matched with and equal to the outer wall of the first measuring head 4, the inner wall of the second telescopic column 13 and the second extending claw 21 in the second measuring head 5 is matched with and equal to the outer wall of the first telescopic column 10 and the first extending claw 6, at this time, the inner wall of the second measuring head 5 is 20mm, the outer wall value is 25mm, when the first telescopic column 10 and the first extension claw 6 move outwards under the rotation of the ratchet wheel force measuring device 3, the second telescopic column 13 and the second extension claw 21 move outwards under the pushing of the first telescopic column 10 and the first extension claw 6 along with the movement of the first telescopic column 10 and the first extension claw 6 by 1mm, and when the first telescopic column 10 and the first extension claw 6 move by 5mm, the unfolding length of the second telescopic column 13 and the second extension claw 21 is 5mm, so that the total unfolding length of the whole second measuring head 5, the second telescopic column 13 and the second extension claw 21 is 25-30 mm, and the measuring head with larger size can be measured under the condition that a device does not need to be replaced; when the distance of 30mm is still insufficient for detection, the three second extension claws 21 in the claw groove 1301 can be turned downwards, then the distance can be prolonged again by limiting and fixing after being connected with the second extension claws 21 through the clamping rings 20, the length of the second extension claws 21 can be directly determined to be longer than the length of the second extension claws 21, such as 5mm, 10mm and the like, then the length of the second extension claws is increased by 5mm or 10mm on the original basic value, and the proper measuring tool does not need to be repeatedly replaced all the time, so that the method is more convenient and quick.

As shown in fig. 2, the outer wall of the first measuring head 4 is provided with a plurality of L-shaped sliding grooves 401, the inner wall of the second measuring head 5 is fixedly connected with a plurality of sliding blocks 12, and the plurality of sliding blocks 12 are respectively and slidably connected with one L-shaped sliding groove 401. Can be when not needing to put down No. two gauge heads 5, accomodate a plurality of sliders 12 in No. two gauge heads 5 in the horizontal groove of L shape spout 401, slider 12 time L shape spout 401 support at this moment can not the whereabouts, and when need put down No. two gauge heads 5, take gently to the right side, fall into L shape spout 401's vertical groove with slider 12, no. two gauge heads 5 because self gravity whereabouts and with No. one gauge head 4 bottom surface flush, detect through No. two gauge heads 5 at this moment, and when needs to retrieve, only need the opposite direction upwards promote can.

As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 9, the outer wall of the shaft sleeve 2 is fixedly connected with a baffle cover 7, the inner wall of the baffle cover 7 is in sliding connection with the outer wall of the second measuring head 5, the upper surface of the baffle cover 7 is penetrated and is in sliding connection with a plurality of limiting plates 15, the bottom surface of the baffle cover 7 is fixedly connected with a plurality of second springs 19, the upper surface of the second measuring head 5 is provided with a clamping groove 502, the limiting plates 15 are in sliding connection with the clamping groove 502, and one end, far away from the baffle cover 7, of the plurality of second springs 19 is in sliding connection with the upper surface of the second measuring head 5. Through setting up fender lid 7 in the upper end of No. two gauge heads 5, can first carry out a stop spacing to No. two gauge heads 5, make it separate with shaft sleeve 2, can carry out spacingly through No. two spring 19 and limiting plate 15 to it in addition, specific spacing mode is, when No. two gauge heads 5 upwards slide in from L shape spout 401, the upper surface of No. two gauge heads 5 at this moment at first with limiting plate 15 and No. two spring 19's bottom surface contact, and limiting plate 15 also can rise simultaneously when being upwards moved by No. two gauge heads 5, no. two spring 19 is compressed and extruded simultaneously, when rotating No. two gauge heads 5 at this moment, the draw-in groove 502 of No. two gauge heads 5 upper surface rotates to be even with limiting plate 15, limiting plate 15 falls into draw-in groove 502 by oneself because of self gravity, and No. two spring 19 is through its extrusion, can make No. two gauge heads 5 rise too much when rising, and still can carry out an extrusion support to No. two gauge heads 5 through its own elastic deformation after limiting plate 15 is connected with draw-in groove 502, make it be difficult for rocking.

As shown in fig. 4 and 8, one side of the plurality of claw grooves 1301, which is close to the second extension claw 21, is rotatably connected with three connection blocks 23, the three connection blocks 23 are fixedly connected with the bottom surface of one second extension claw 21 respectively, and one side of the three second extension claw 21, which is far away from the connection blocks 23, is rotatably connected with a plurality of rollers 25. Through setting up connecting block 23 and rotating in claw groove 1301, can make more convenient operation when needing to put down No. two extension claws 21 to increase roller bearing 25 and when measuring the aperture, can more convenient rotate, reduce frictional force.

As shown in fig. 3, 4, 5 and 9, a buckle plate 14 is fixedly connected to one side, away from the second measuring head 5, of each of the plurality of limiting plates 15, and a plurality of buckling grooves 701 are formed in the upper surface of the retaining cover 7, wherein the bottom surfaces of the plurality of buckling grooves 701 are arranged in a matched mode and are in sliding connection with the buckle plate 14. Can increase a spacing at limiting plate 15's upper surface through setting up buckle 14 for limiting plate 15 pulls out more easily upwards, and also can prevent that limiting plate 15 from falling into draw-in groove 502, then can accomodate buckle 14 wherein through catching groove 701, can carry out a spacing to buckle 14, makes it be difficult for appearing rocking, and keeps the upper surface of retaining cap 7 flush, also more pleasing to the eye.

As shown in fig. 4 and 8, two slide rail grooves 1302 are formed in the inner walls of the plurality of claw grooves 1301, the limiting slide rails 24 are fixedly connected to the upper surfaces of the two second extension claws 21 located below in the same claw groove 1301, the supporting rods 22 are rotatably connected to the bottom surfaces of the two second extension claws 21 located above in the same claw groove 1301, the two supporting rods 22 are respectively and slidably connected with the two limiting slide rails 24, four elastic blocks 9 are fixedly connected to the outer walls of the two limiting slide rails 24, the four elastic blocks 9 are respectively located on two sides of the limiting slide rails 24, and the limiting slide rails 24 are clamped with the slide rail grooves 1302 through the four elastic blocks 9. By adding the two support rods 22 and the two limiting slide rails 24 between the three second extending claws 21, the three second extending claws 21 can be supported and separated, so that the second extending claws 21 can still have detection stability and accuracy after being unfolded, and when the second extending claws 21 do not need to be overturned, only the two support rods 22 are required to be erected on the bottom surfaces of the second extending claws 21, and then the two limiting slide rails 24 are required to be retracted in the slide rail grooves 1302.

As shown in fig. 2, 3, 4 and 7, the bottom surface of the snap ring 20 is fixedly connected with a plurality of pressing blocks 26 and special-shaped inserting blocks 27, the bottom surface of the pressing blocks 26 is propped against the upper surface of the uppermost second extension claw 21 in the claw groove 1301, a special-shaped groove 2101 is formed in the upper surface of the uppermost second extension claw 21 in the claw groove 1301, and the outer wall of the special-shaped inserting blocks 27 is in sliding connection with the special-shaped groove 2101. When the second extension claw 21 is retracted in the claw groove 1301, the pressing block 26 on the clamping ring 20 presses the upper portion of the second extension claw 21, so that the special-shaped insert 27 can be prevented from sliding down along the outer wall of the second extension claw 21, and when the second extension claw 21 moves under the pushing of the first extension claw 6, the clamping ring 20 only needs to be slightly lifted upwards before the second extension claw 21 stretches, and after the second extension claw 21 stretches, the bottom surface of the special-shaped insert 27 abuts against the upper surface of the second extension claw 21, so that the special-shaped insert cannot slide down; when the second extension claw 21 needs to be turned down, the clamp ring 20 is slightly lifted upwards, when the second extension claw 21 turns to 90 degrees, the clamp ring 20 is slid downwards and slightly turned leftwards, and then the special-shaped insert 27 is inserted into the special-shaped groove 2101 for limiting, so that the clamp ring is simple and quick.

As shown in fig. 2, 3, 5 and 6, two symmetrically arranged limiting grooves 402 are formed in one side, far away from the fixed sleeve 1, of the L-shaped sliding groove 401, two of the sliding blocks 12 penetrate through to form a telescopic groove 1201, the inner wall of the telescopic groove 1201 is connected with a telescopic assembly, and two ends of the telescopic assembly are respectively connected with the second measuring head 5 and the L-shaped sliding groove 401 in a sliding mode. After the second measuring head 5 is slid downwards and flushed with the first measuring head 4 through the telescopic component, the second measuring head 5 can be limited, the second measuring head 5 is prevented from sliding upwards in the detection process, and the detection effect is affected.

As shown in fig. 2, 3, 5 and 6, the telescopic assembly comprises a limit head 11, one end of the limit head 11, which is far away from the second measuring head 5, is in sliding connection with the L-shaped sliding groove 401 and the telescopic groove 1201, one side of the limit head 11, which is far away from the L-shaped sliding groove 401, is fixedly connected with a sliding rod 17, and the other end of the sliding rod 17 penetrates through the second measuring head 5 and is fixedly connected with a pulling rod 8. The specific spacing mode of telescopic assembly is, when No. two gauge heads 5 down slide along L shape spout 401, spacing head 11 bottom surface and L shape spout 401 bottom surface counterbalance this moment, leads to slide bar 17 and dead lever 8 outwards protrusion, and after No. two gauge heads 5 slide to the position that flushes with No. one gauge head 4, the position of spacing head 11 just flushes with spacing groove 402, promotes dead lever 8 inwards this moment, inserts spacing head 11 in spacing groove 402 for No. two gauge heads 5 can not slide up easily.

As shown in fig. 2, 5 and 6, a first spring 18 is fixedly connected to one side, far away from the L-shaped chute 401, of the limit head 11, a baffle 16 is fixedly connected to the other end of the first spring 18, the other side of the baffle 16 is fixedly connected with the inner wall of the second measuring head 5, a storage groove 501 is formed in the joint of the second measuring head 5 and the pulling rod 8, a sliding rod 17 penetrates through the baffle 16 and abuts against the bottom surface of the storage groove 501, the sliding rod 17 is located in the first spring 18, and the length of the pulling rod 8 is not greater than that of the storage groove 501. Through increasing spring 18, can be along L shape spout 401 gliding to the corresponding position back No. two gauge heads 5, spacing head 11 is directly pushed into spacing inslot 402 under the effect of spring 18 No. one, save manual operation, and more swiftly convenient, and when need resume No. two gauge heads 5, only need outwards pull dead lever 8, dead lever 8 when outwards remove, spacing head 11 compresses spring 18 No. one, thereby make spacing head 11 extract from spacing inslot 402, at this moment along L shape spout 401 upwards move can, can receive dead lever 8 wherein through setting up storage groove 501, can reduce No. two gauge heads 5 outside position, prevent to influence the measurement of No. two extension claws 21, and the diameter of storage groove 501 is bigger, can more make things convenient for the finger to put into and pull out dead lever 8.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a utensil is examined to support bearing support hole site, includes fixed sleeve (1), installs axle sleeve (2) at fixed sleeve (1) both ends, ratchet dynamometry (3) and installs gauge head (4) No. one at the axle sleeve (2) other end, its characterized in that: the outer wall sliding connection of gauge head (4) has a plurality of flexible posts (10), the other end of a plurality of flexible posts (10) all rotates and is connected with extension claw (6) No. one, one end that gauge head (4) is close to fixed sleeve (1) is connected with No. two gauge heads (5), the outer wall of gauge head (4) and the inner wall sliding connection of No. two gauge heads (5), the outer wall sliding connection of No. two gauge heads (5) has a plurality of and the flexible post (13) of No. two that match of flexible post (10), claw groove (1301) have all been seted up to the other end of a plurality of flexible post (13), the inner wall data of a plurality of claw groove (1301) all are connected with three extension claw (21) No. two, one side that No. two extension claw (21) were kept away from to a plurality of flexible post (13) is connected with extension claw (6) sliding connection respectively, the outer wall sliding connection of No. two gauge heads (5) has snap ring (20), the bottom surface and the extension claw (21) outer wall connection of the uppermost.

2. The support bearing bracket hole site gauge of claim 1 wherein: a plurality of L-shaped sliding grooves (401) are formed in the outer wall of the first measuring head (4), a plurality of sliding blocks (12) are fixedly connected to the inner wall of the second measuring head (5), and the sliding blocks (12) are respectively and slidably connected with one L-shaped sliding groove (401).

3. The support bearing bracket hole site gauge of claim 1 wherein: the outer wall fixedly connected with of axle sleeve (2) keeps off lid (7), the inner wall that keeps off lid (7) and the outer wall sliding connection of No. two gauge heads (5), the upper surface of keeping off lid (7) wears to establish and sliding connection has a plurality of limiting plates (15), the bottom surface fixedly connected with of keeping off lid (7) No. two springs (19), draw-in groove (502) have been seted up to the upper surface of No. two gauge heads (5), limiting plate (15) and draw-in groove (502) sliding connection, the one end that keeps off lid (7) and the upper surface sliding connection of No. two gauge heads (5) are kept away from to a plurality of No. two springs (19).

4. The support bearing bracket hole site gauge of claim 1 wherein: one side of a plurality of claw grooves (1301) close to the second extension claw (21) is rotationally connected with three connecting blocks (23), the three connecting blocks (23) are fixedly connected with the bottom surface of the second extension claw (21) respectively, and one side of the third second extension claw (21) far away from the connecting blocks (23) is rotationally connected with a plurality of rolling shafts (25).

5. A support bearing bracket hole site gauge as defined in claim 3, wherein: one side of the limiting plates (15) far away from the second measuring head (5) is fixedly connected with a buckle plate (14), a plurality of buckling grooves (701) are formed in the upper surface of the retaining cover (7), and the bottom surfaces of the buckling grooves (701) are matched with the buckle plate (14) and are in sliding connection.

6. The support bearing bracket hole site gauge of claim 1 wherein: two slide rail grooves (1302) have been seted up to the inner wall in a plurality of claw grooves (1301), the upper surface of two extension claws (21) that lie in the below in same claw groove (1301) is all fixedly connected with spacing slide rail (24), the bottom surface of two extension claws (21) that lie in the top in same claw groove (1301) is all rotated and is connected with bracing piece (22), two bracing pieces (22) respectively with two spacing slide rail (24) sliding connection, four elastic blocks (9) of the equal fixedly connected with of outer wall of two spacing slide rail (24), four elastic blocks (9) are located the both sides of spacing slide rail (24) respectively, spacing slide rail (24) are through four elastic block (9) and slide rail groove (1302) joint.

7. The support bearing bracket hole site gauge of claim 1 wherein: the bottom surface fixedly connected with a plurality of briquetting (26) and dysmorphism inserted block (27) of snap ring (20), the bottom surface of briquetting (26) offsets with the second extension claw (21) upper surface of the uppermost in claw groove (1301), and special-shaped groove (2101) has been seted up to the second extension claw (21) upper surface of the uppermost in claw groove (1301), and the outer wall and the special-shaped groove (2101) sliding connection of dysmorphism inserted block (27).

8. The support bearing bracket hole site gauge of claim 2 wherein: two limit grooves (402) which are symmetrically arranged are formed in one side, far away from the fixed sleeve (1), of the L-shaped sliding grooves (401), two of the sliding blocks (12) penetrate through the limit grooves (1201), the inner wall of each telescopic groove (1201) is connected with a telescopic assembly, and two ends of each telescopic assembly are respectively connected with the two measuring heads (5) and the L-shaped sliding groove (401) in a sliding mode.

9. The support bearing bracket hole site gauge of claim 8 wherein: the telescopic assembly comprises a limiting head (11), one end, far away from the second measuring head (5), of the limiting head (11) is in sliding connection with the L-shaped sliding groove (401) and the telescopic groove (1201), one side, far away from the L-shaped sliding groove (401), of the limiting head (11) is fixedly connected with a sliding rod (17), and the other end of the sliding rod (17) penetrates the second measuring head (5) and is fixedly connected with a pulling rod (8).

10. The support bearing bracket hole site gauge of claim 9 wherein: one side fixedly connected with spring (18) of L shape spout (401) is kept away from to spacing head (11), the other end fixedly connected with baffle (16) of spring (18), the opposite side of baffle (16) and the inner wall fixed connection of No. two gauge heads (5), storage tank (501) has been seted up to the junction of No. two gauge heads (5) and dead lever (8), slide bar (17) run through baffle (16) and offset with the bottom surface of storage tank (501), slide bar (17) are located spring (18), the length of dead lever (8) is not greater than the length of storage tank (501).