CN218723809U

CN218723809U - Concentricity detection tool for rotor component and pump shell

Info

Publication number: CN218723809U
Application number: CN202222790064.9U
Authority: CN
Inventors: 杨福禄; 史宝平; 赵玲玲; 黎海雁; 陈姣姣
Original assignee: Kunming Jiahe Intelligent Technology Co ltd
Current assignee: Kunming Jiahe Intelligent Technology Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-24
Anticipated expiration: 2032-10-21

Abstract

The utility model belongs to the technical field of concentricity detects frock clamp, especially, relate to a rotor part detects frock with pump case concentricity, including the chain subassembly, the one end of chain subassembly articulates there is fixed establishment, detachable is provided with the fixture who is used for centre gripping detecting instrument on the chain subassembly, fixed establishment is including the connecting block and the joint piece that are L shape, the one end and the chain subassembly of connecting block are articulated, the one end of joint piece is provided with and is the joint portion that colludes the form, connecting block and joint piece pass through bolt assembly and connect and support tight annular workpiece outer wall, the chain subassembly encircles annular workpiece round and makes corresponding chain link and joint portion joint. This frock can carry out quick centre gripping dismouting to different diameter work pieces through designing chain subassembly structure, and fixed firm reliable, and whole small can be used for narrow space clamping to measure the concentricity.

Description

Concentricity detection tool for rotor component and pump shell

Technical Field

The utility model belongs to the technical field of concentricity detects frock clamp, especially, relate to a rotor part detects frock with pump case concentricity.

Background

During the installation, manufacture, overhaul and verification of equipment of a rotary machine, the problem of coaxiality measurement is often encountered: such as the measurement and adjustment of the center of a hollow cavity of a steam turbine separator, the measurement and adjustment of the center of a bearing hollow cavity, the measurement and adjustment of the coaxiality of a speed reducer and a transmission mechanical bearing box hole, the measurement and positioning of a sealing ring and a sealing oil baffle of a pump, the detection of the concentricity of a rotor component and a pump shell and the like are indispensable important parameters.

Regarding the measurement of coaxiality and concentricity, a coaxiality detection tool is used in the prior art, for example, the chinese utility model patent with publication number CN206469824U discloses a casing bushing coaxiality measurement clamp, which consists of a dial indicator, a measurement component, a grading positioning shaft and a positioning shaft storage box; the grading positioning shaft is selected and matched according to the actual measurement size of the bushing hole of the product copper bushing to ensure that the fit clearance between the bushing hole of the product copper bushing and the positioning shaft is in a qualified range; the grading positioning shaft is used as a precision matching part and should be stored in the positioning shaft storage box in an oil seal mode when not used, the grading positioning shaft is periodically checked, and the reliability of product measurement is guaranteed.

For the clamp like the above, the internal structure is biased to be complicated, the whole volume is large, the internal space of the shell is difficult to install and use on the rotor component, and the concentricity of the rotor component and the shell cannot be measured by installing the clamp on the rotor.

Moreover, the traditional measuring clamp is poor in universality, different in size, required to be manufactured with special tools, large in size, not capable of being mounted and used in a narrow limited space, infirm in fixation, easy to fall off and tedious to disassemble and assemble, and cannot be used for quickly clamping and detecting annular components with different diameters due to repeated labor.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the background art, the utility model provides a rotor part detects frock with pump case concentricity through designing chain subassembly structure, can carry out quick centre gripping dismouting to different diameter work pieces, and fixed firm reliable, and whole small can be used for narrow space clamping to measure the concentricity.

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model provides a rotor part detects frock with pump case concentricity, includes the chain subassembly, the one end of chain subassembly articulates there is fixed establishment, detachable is provided with the fixture who is used for centre gripping detecting instrument on the chain subassembly, fixed establishment is including the connecting block and the joint piece that are L shape, the one end and the chain subassembly of connecting block are articulated, the one end of joint piece is provided with and is the joint portion that colludes the form, connecting block and joint piece pass through bolt assembly and connect and support tight cyclic annular work piece outer wall, the chain subassembly encircles cyclic annular work piece round and makes corresponding chain link and joint portion joint.

Preferably, the clamping portion comprises a hook head which is clamped into an inner notch of a chain link of the chain assembly.

Preferably, the bolt assembly comprises a connecting bolt and a locking nut, and the screw section of the connecting bolt is clamped into the inner notch of the chain link of the chain assembly.

Preferably, the contact surface of the connecting block and the annular workpiece is arc-shaped, and the contact surface of the clamping block and the annular workpiece is arc-shaped.

Preferably, at least one of two contact surfaces of the connecting block and the clamping block is obliquely arranged.

Preferably, the clamping mechanism is slidably sleeved on the chain assembly.

Preferably, fixture includes slider, bracing piece and grip block, the slider slides and sets up on the chain subassembly, the slider upper end is provided with the bracing piece, detachable is provided with the grip block that is used for the centre gripping detector on the bracing piece.

Preferably, the clamping blocks are U-shaped and can be elastically compressed, the clamping blocks are provided with clamping holes, and one sides of the clamping holes are provided with strip-shaped notches in an extending manner; the two sides of one clamping block are provided with through holes communicated with the bar-shaped notches, the two sides of the other clamping block are respectively provided with through holes and threaded holes communicated with the bar-shaped notches, the supporting rod is arranged in the clamping hole of one clamping block, the detector is arranged in the clamping hole of the other clamping block, and the locking screws sequentially penetrate through the through holes of the two clamping blocks and are screwed into the threaded holes for locking.

Preferably, the detector is a dial indicator or a dial indicator.

The utility model has the advantages of as follows and beneficial effect:

1. the utility model provides a detect frock, including the chain subassembly, the one end of chain subassembly articulates there is fixed establishment, and the chain subassembly can flexibly encircle cyclic annular work piece centre gripping, and is small, can use at narrow casing inner space centre gripping, can the centre gripping detect concentricity, convenient and fast on the rotor part. The fixing mechanism of the chain assembly comprises a connecting block and a clamping block, wherein the connecting block is L-shaped, one end of the connecting block is hinged to the chain assembly, and one end of the clamping block is provided with a clamping portion which is in a hook shape. When the chain component is installed, the connecting block and the clamping block are connected through the bolt component and abut against the outer wall of the annular workpiece, then the chain component surrounds the annular workpiece for a circle, and the corresponding chain links are clamped with the clamping parts. Due to the design, clamping can be realized quickly, and the assembly and disassembly are convenient and quick.

2. The utility model discloses in, realize the first order centre gripping in the inside breach of the chain link of chain subassembly is gone into to the gib head card through the clamping part, realize the second grade centre gripping in the inside breach of the chain link of chain subassembly is gone into to connecting bolt's screw rod section card. Through the two-stage clamping and abutting, the fixing is firm and reliable, and the disassembly and the assembly are easy.

Drawings

Fig. 1 is a schematic view of a concentricity detection fixture of a rotor component and a pump casing provided by the present invention;

fig. 2 is a clamping schematic view of the concentricity detection tool provided by the present invention;

fig. 3 is a structural diagram of the fixing mechanism provided by the present invention;

fig. 4 is a front view of a securing mechanism provided by the present invention;

FIG. 5 is an enlarged view of a portion a of FIG. 2;

FIG. 6 is an enlarged view of the portion b of FIG. 2;

FIG. 7 is a cross-sectional view of the clamping mechanism of FIG. 6;

icon: 1-chain component, 1 a-first chain link, 1 b-second chain link, 2-clamping mechanism, 21-sliding block, 22-supporting rod, 23-first clamping block, 231-first clamping hole, 232-first strip notch, 24-second clamping block, 241-second clamping hole, 242-second strip notch, 243-threaded hole, 25-locking screw, 251-threaded part, 3-fixing mechanism, 31-connecting block, 311-connecting hole, 312-U-shaped notch, 32-clamping block, 321-clamping part, 3211-hook head, 33-connecting bolt, 331-locking nut and 4-annular workpiece.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in fig. 1 and 2, the tool for detecting the concentricity of the rotor component and the pump shell comprises a chain component 1, wherein one end of the chain component 1 is hinged with a fixing mechanism 3, and a clamping mechanism 2 for clamping a detection instrument is detachably arranged on the chain component 1.

As one preferred arrangement, the clamping mechanism 2 is slidably disposed over the chain assembly 1.

In the present invention, the chain assembly 1 is formed by hinging chain rings or rings, and the material of the chain assembly 1 is preferably metal material, but not limited thereto, the plastic rubber chain assembly 1 can also be used.

The chain of the present invention may be a common iron chain ring, or a transmission chain, preferably a transmission chain, which is composed of a plurality of chain links, as shown in fig. 1 and 2.

As shown in fig. 3, 4 and 5, the fixing mechanism 3 includes an L-shaped connecting block 31 and a clamping block 32, and the connecting block 31 is hinged to the chain assembly 1, specifically: one end of the connecting block 31 is provided with a U-shaped notch 312, and both sides of the U-shaped notch 312 are provided with connecting holes 311 for arranging a pivot to be rotatably connected with the chain assembly 1. The one end of joint piece 32 is provided with and is the joint portion 321 that colludes the form, and connecting block 31 and joint piece 32 are hugged closely back to back and are connected through bolt assembly to make the one end of keeping away from bolt assembly support tightly 4 outer walls of cyclic annular work piece, then chain subassembly 1 encircles 4 rounds of cyclic annular work piece and makes corresponding first chain link 1a and joint portion 321 joint. Namely, after the chain assembly 1 surrounds the workpiece for one circle, the chain assembly 1 (the first chain link 1a in fig. 5) is hooked by the clamping portion 321, so as to realize the first-stage fixation. Due to the design, clamping can be realized quickly, and the assembly and disassembly are convenient and quick.

The annular part 4 mainly comprises a rotor part, so that the chain assembly 1 is clamped around the rotating shaft of the rotor part; that is to say, the utility model discloses the most main purpose is to detect the concentricity of casing internally mounted's rotor part and casing, can install and use in the inside narrow space of casing, but not limited to this, the utility model discloses can carry out the centre gripping to annular work piece and detect, simultaneously, also not limited to annular work piece, the work piece of other shapes also can be through flexible chain assembly 1 centre gripping.

Further, the clamping portion 321 includes a hook 3211, and the hook 3211 is clamped into an inner notch of the second link 1b of the chain assembly 1. The chain links of the chain component 1 are connected by pin shafts, so that the hook 3211 will be clamped on the pin shaft of the second chain link 1a after entering the inner gap of the second chain link 1a, thereby tensioning the chain component 1 and enhancing the connection reliability.

Further, the bolt assembly includes connecting bolt 33 and lock nut 331, as shown in fig. 5, wear to establish connecting bolt 33 and lock through lock nut 331 in the through-hole of connecting block 31 and joint block 32, and the screw section of connecting bolt 33 is then blocked in the inside breach of second chain link 1b of chain assembly 1, and connecting bolt 33 supports tight chain assembly 1 (second chain link 1b in fig. 5), realizes that the second level is fixed. Support tightly through the doublestage centre gripping, fixed firm reliable, and easily dismouting colludes tightly toward joint piece 32 direction through joint portion 321, supports tightly toward joint piece 32 opposite direction through connecting bolt 33, and joint portion 321 and connecting bolt 33 are used in the power on chain subassembly 1 on opposite directions, support tightly mutually, guarantee the firm reliability of connection.

As shown in fig. 5, in the utility model, the contact surface of connecting block 31 and cyclic annular work piece 4 sets to the arc form, and the contact surface of joint piece 32 and cyclic annular work piece 4 sets to the arc form, and when connecting bolt 33, lock nut 331 locked both, joint piece 32 and connecting block 31 can hug closely cyclic annular work piece 4 and carry out certain angular rotation.

As shown in fig. 5, in the present invention, at least one of the two contact surfaces of the connecting block 31 and the connecting block 32 is inclined, and in fig. 5, the contact surface of the connecting block 32 is inclined. Such design, the convenience is when the connecting bolt 33 of screwing, lets joint piece 32 can have bigger rotation angle, can let joint portion 321 rotatory relative connecting block 31 for gib head 3211 chucking is in the inside breach of first link 1 a.

As shown in fig. 6 and 7, in the utility model, the clamping mechanism 3 comprises a slider 21, a support rod 22 and a clamping block, the slider 21 is slidably arranged on the chain assembly 1, the upper end of the slider 21 is provided with the support rod 22, and the detachable clamping block for clamping the detector is arranged on the support rod 22.

The utility model discloses in, the detector is percentage table or amesdial.

Further, two clamping blocks are provided, which are U-shaped and elastically compressible, respectively a first clamping block 23 and a second clamping block 24. The first clamping block 23 is provided with a first clamping hole 231, one side of the first clamping hole 231 extends to form a first strip-shaped notch 232, the second clamping block 24 is provided with a second clamping hole 241, and one side of the second clamping hole 241 extends to form a second strip-shaped notch 242. The two sides of the first clamping block 23 are provided with through holes communicated with the first strip-shaped notch 232, the two sides of the second clamping block 24 are respectively provided with a through hole communicated with the second strip-shaped notch 242 and a threaded hole 243, the support rod 22 is arranged in the first clamping hole 231, a detector (a dial indicator or a dial indicator) is arranged in the second clamping hole 241, a locking screw 25 sequentially penetrates through the first clamping block 23, the through hole of the second clamping block 24 enables the threaded portion 251 to be screwed into the threaded hole 243 for locking, so that the first clamping block 23 and the second clamping block 24 are compressed, and the first strip-shaped notch 232 and the second strip-shaped notch 242 are closed to a certain degree to realize stable clamping and fixing.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a rotor part detects frock with pump case concentricity, includes chain subassembly (1), the one end of chain subassembly (1) articulates there is fixed establishment (3), its characterized in that chain subassembly (1) is gone up detachable and is provided with fixture (2) that are used for centre gripping detecting instrument, fixed establishment (3) are including connecting block (31) and joint piece (32) that are L shape, the one end and the chain subassembly (1) of connecting block (31) are articulated, the one end of joint piece (32) is provided with and is the joint portion (321) that collude the form, connecting block (31) and joint piece (32) are connected and are supported tight cyclic annular work piece (4) outer wall through bolt assembly, chain subassembly (1) is encircleed cyclic annular work piece (4) round and is made corresponding chain link and joint portion (321) joint.

2. A rotor component and pump housing concentricity testing tool according to claim 1, wherein: the clamping portion (321) comprises a hook head (3211), and the hook head (3211) is clamped into an inner gap of a chain link of the chain assembly (1).

3. A rotor component and pump housing concentricity testing tool according to claim 1, wherein: the bolt assembly comprises a connecting bolt (33) and a locking nut (331), wherein a screw section of the connecting bolt (33) is clamped into an inner notch of a chain link of the chain assembly (1).

4. A rotor component and pump housing concentricity testing tool according to claim 1, wherein: the contact surface of connecting block (31) and cyclic annular work piece (4) sets to the arc form, the contact surface of joint piece (32) and cyclic annular work piece (4) sets to the arc form.

5. A rotor component and pump housing concentricity testing tool according to claim 1, wherein: at least one of two contact surfaces of the connecting block (31) and the clamping block (32) is obliquely arranged.

6. A rotor component and pump housing concentricity testing tool according to claim 1, wherein: the clamping mechanism (2) is slidably sleeved on the chain assembly (1).

7. A rotor component and pump housing concentricity detection tooling according to claim 6, wherein: fixture (2) include slider (21), bracing piece (22) and grip block, slider (21) slide to set up on chain subassembly (1), slider (21) upper end is provided with bracing piece (22), detachable is provided with the grip block that is used for the centre gripping detector on bracing piece (22).

8. A rotor component and pump housing concentricity detection tooling according to claim 7, wherein: the clamping blocks are U-shaped and can be elastically compressed, clamping holes are formed in the clamping blocks, and strip-shaped gaps are formed in one sides of the clamping holes in an extending mode; the two sides of one clamping block are provided with through holes communicated with the strip-shaped gaps, the two sides of the other clamping block are respectively provided with a through hole communicated with the strip-shaped gaps and a threaded hole (243), the support rod (22) is arranged in the clamping hole of one clamping block, the detector is arranged in the clamping hole of the other clamping block, and the locking screw (25) sequentially penetrates through the through holes of the two clamping blocks and is screwed into the threaded hole (243) for locking.

9. A rotor component and pump housing concentricity testing tool according to claim 8, wherein: the detector is a dial indicator or a dial indicator.