CN211127445U - Universal type generator test run connection transmission device - Google Patents
Universal type generator test run connection transmission device Download PDFInfo
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- CN211127445U CN211127445U CN202020007185.XU CN202020007185U CN211127445U CN 211127445 U CN211127445 U CN 211127445U CN 202020007185 U CN202020007185 U CN 202020007185U CN 211127445 U CN211127445 U CN 211127445U
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Abstract
The utility model discloses a universal type generator test run connection transmission device, which comprises an inner boss connecting disc, a transmission pin, a first elastic sleeve, a second elastic sleeve, a transition disc, a special nut, a self-made bolt pin, a screw and a stop screw; the transmission pin sequentially passes through the hole in the transition disc, the second elastic sleeve, the boss of the inner boss connecting disc and the first elastic sleeve, the transmission pin is fastened through a special nut and a stop screw, the self-made screw pin passes through the threaded hole in the transition disc from the notch of the inner boss connecting disc and is inserted into the pin hole of the rotor dynamic balance connecting disc, and the screw passes through the through hole in the transition disc from the notch to be connected with the dynamic balance connecting disc. The utility model has the advantages of elasticity, fast assembly, universality and the like.
Description
Technical Field
The utility model relates to a machine parts technical field, specifically speaking relates to a be connected transmission between drag driving machine shaft and the rotor coupling when being used for generator test run test.
Background
The performance of the generator needs to be checked through trial run in the process of developing the produced generator, and due to different requirements of manufacturers ordering each generator, the shaft couplings of the end rotor of the generator have a plurality of models, so that a whole set of tool transmission device and a whole set of dynamic balance connecting disc need to be designed for each model of shaft coupling separately during trial run and dynamic balance test. During each test, tens of driving pins and elastic rings (as shown in fig. 1) need to be repeatedly installed, so that the installation workload is large, the tool manufacturing cost is high, and the universality is poor. In order to solve the problems, the applicant designs a universal type generator test run connection transmission device.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a transmission is connected in generator test run has advantages such as elasticity, fast-assembling, general.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a universal type generator test run connection transmission device comprises an inner boss connecting disc, a transmission pin, a first elastic sleeve, a second elastic sleeve, a transition disc, a special nut, a self-made screw pin, a screw and a stop screw; the inner boss connecting disc comprises an annular first disc body, four arc-shaped notches uniformly arranged on the outer ring of the disc body, a plurality of large holes uniformly arranged between adjacent notches and penetrating through the first disc body, a boss arranged in the middle of the large holes, and a key groove arranged on the inner wall of the first disc body and matched with the stop key; an inner hole at the center of the first disc body is sleeved on a shaft of the tractor in a hot mode, and the first elastic sleeve and the second elastic sleeve are sleeved inside a large hole of the inner boss connecting disc and are located on the two sides of the boss respectively; the transition disc comprises an annular second disc body, threaded holes which are symmetrically arranged on the second disc body from top to bottom, through holes which are symmetrically arranged on the second disc body from left to right, and holes which are uniformly arranged between the adjacent threaded holes and through holes and correspond to the large holes on the first disc body; the transmission pin sequentially penetrates through the hole, the second elastic sleeve, the boss and the first elastic sleeve, the transmission pin is fastened through a special nut and a stop screw, the self-made screw pin penetrates through the threaded hole from the notch of the inner boss connecting disc and is inserted into the pin hole of the rotor dynamic balance connecting disc, and the screw penetrates through the through hole from the notch to be connected with the dynamic balance connecting disc.
According to the further technical scheme, the transmission pin and the transition disc are in interference connection, and the transmission pin is prevented from rotating along with the special nut when the special nut is screwed.
According to a further technical scheme, the self-made bolt comprises a bolt rod and a bolt head arranged at the top of the bolt rod; the screw pin rod comprises a thread part and a cylindrical pin part arranged below the thread part, and the tail end of the cylindrical pin part is subjected to large chamfering treatment.
According to a further technical scheme, the head of the screw pin is a cylindrical head provided with a square hole, and the square hole is convenient for screwing by using a torque wrench.
According to a further technical scheme, the special nut comprises a nut body and a screw hole penetrating through the nut body; the nut body comprises a tail part and a head part, the head part is located above the tail part, the diameter of the head part is smaller than that of the tail part, a stop threaded hole which is horizontally arranged and matched with the stop screw is formed in the side face of the head part, and a tangent plane matched with the wrench is formed in the outer side face of the head part.
According to the further technical scheme, the bottom of the tail is cylindrical, the middle of the tail is obliquely arranged at the joint of the tail and the head, and the head and the tail are integrally formed.
According to a further technical scheme, the first disc body is provided with a plurality of lifting holes for lifting or turning.
In a further technical scheme, the diameter of the outer circles of the first elastic sleeve and the second elastic sleeve is 0.3-0.5mm smaller than that of the large hole.
In a further technical scheme, the boss is in a hollow annular shape and is arranged on the inner wall of the large hole.
According to a further technical scheme, the second elastic sleeve is arranged in the large hole, and the tail of the second elastic sleeve protrudes out of the surface of the inner boss connecting disc by 3 mm. So as to ensure that a certain safety clearance is left between the inner boss connecting disc and the transition disc and prevent the collision caused by the axial collision of the rotor.
The utility model discloses an annular structure is chooseed for use to the second disk body of transition dish, and the through-hole of its center department can not contact, interfere with dynamic balance connection pad bulge when subtracting heavy, has guaranteed normal work.
The boss in the first disc body of the inner boss connecting disc enables the elastic sleeve to be axially elastic, and the driving pin can be effectively prevented from being disengaged due to axial collision of the rotor during test run.
The utility model discloses a set up first elastic sleeve, second elastic sleeve for the driving pin obtains certain radial, axial elasticity and compensation diaxon relative displacement's ability, and elastic sleeve excircle size is 0.3-0.5mm less than interior boss connection pad hole, makes things convenient for the suit of elastic sleeve and can reduce the power of the radial direction that arouses because of the decentraction that interior boss connection pad received.
The screw thread part of the self-made screw pin is screwed into the transition disc, the cylindrical pin part is used for being connected with the rotor dynamic balance connecting disc for centering, and the tail end of the cylindrical pin part is designed into a large chamfer angle so as to be convenient for penetration.
Advantageous effects
Compared with the prior art, the utility model has the advantages of it is as follows showing:
1. the elasticity advantage: the utility model discloses a set up the elastic sleeve, can obtain certain radial, axial elasticity and compensation diaxon relative displacement's ability, boss structure in the interior boss connection pad makes the elastic sleeve increase axial elasticity, the utility model discloses compromise axial and radial elasticity requirement to can prevent that the rotor from breaking off because of the axial is hit.
2. Fast-assembling advantage: when the transition disc is connected with the generator rotor, the transition disc is connected with the rotor dynamic balance connection disc only by installing four screws (two self-made screw pins and two common hexagon socket head cap screws), so that the installation workload is greatly reduced, and the effect of quick installation is realized.
3. The general advantage is that: for different generator rotors, due to the fact that the sizes of the generator couplers are different, the dynamic balance connecting discs corresponding to each generator coupler must be designed to meet high-speed dynamic balance tests, and as long as the connecting holes corresponding to the transmission device for trial run of the generator are designed when the dynamic balance connecting discs are designed, the transmission device for trial run of the generator is applicable, wide in universality, free of repeated disassembly and low in tool cost for trial run.
4. The utility model discloses a transmission is connected in generator test run security is high, and installation work load is little, and application quality is good, and the commonality is wide, to the generator test run of new construction, only needs the design dynamic balance connection pad, does not need redesign to connect transmission, has practiced thrift a large amount of frock costs.
Drawings
FIG. 1 is a schematic illustration of a prior art transmission and generator coupling connection;
fig. 2 is a first schematic structural diagram of the present invention;
FIG. 3 is a second schematic structural view of the present invention;
FIG. 4 is a schematic structural view of an inner boss connecting disc;
FIG. 5 is a schematic structural view of a transition disk;
FIG. 6 is a front view of a specialty nut;
FIG. 7 is a top view of a specialty nut;
FIG. 8 is a front view of the home-made bolt;
FIG. 9 is a top view of the home-made bolt;
FIG. 10 is a front view of a dynamically balancing interface disc;
FIG. 11 is a view A-A of FIG. 10;
FIG. 12 is an enlarged view of the structure of the macropores;
fig. 13 is a third schematic structural diagram of the present invention.
The labels in the figure are: 1. inner boss connecting disc 2, driving pin 3, first elastic sleeve 4, second elastic sleeve 5, specially-made nut 6, stop screw 7, transition disc 8, self-made screw pin 9, screw 10, dragging machine shaft 11, elastic sleeve 12, washer 13, nut 14, generator rotor coupling 15, boss 16, dynamic balance connecting disc 17, gap 18, first disc body 19, large hole 20, key groove 21, second disc body,
22. a threaded hole 23, a through hole 24, a hole 25, an inner hole 26, a transmission pin in the prior art 27 and a lifting hole; 801. a screw rod 802, a screw head 803, a thread part 804, a cylindrical pin part 805 and a square hole; 501. the nut comprises a nut body, 502 screw holes, 503 tail portions, 504 head portions, 505 stop screw holes, 506 and a tangent plane;
1601. connecting the disk body, 1602, first screw, 1603, pinhole, 1604, second screw, 1605, counter bore.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Examples
As shown in fig. 2-13, a general type generator trial run connection transmission device comprises an inner boss connection disc 1, a transmission pin 2, a first elastic sleeve 3, a second elastic sleeve 4, a transition disc 7, a special nut 5, a self-made screw pin 8, a screw 9 and a stop screw 6; the inner boss connecting disc 1 comprises an annular first disc body 18, four arc-shaped notches 17 uniformly arranged on the outer ring of the disc body, a plurality of large holes 19 uniformly arranged between adjacent notches and penetrating through the first disc body 18, a boss 15 arranged in the middle of the large holes 19, and a key groove 20 arranged on the inner wall of the first disc body 18 and matched with a stop key; an inner hole 25 at the center of the first disc body 18 is sleeved on the tractor shaft 10 in a hot mode, and the first elastic sleeve 3 and the second elastic sleeve 4 are arranged inside a large hole 19 of the inner boss connecting disc 1 and are respectively located on two sides of the boss 15; the transition disc 7 comprises an annular second disc body 21, threaded holes 22 which are symmetrically arranged on the second disc body 21 from top to bottom, through holes 23 which are symmetrically arranged on the second disc body 21 from left to right, and holes 24 which are uniformly arranged between the adjacent threaded holes 22 and through holes 23 and correspond to the large holes 19 on the first disc body 18; the driving pin 2 sequentially penetrates through the hole 24, the second elastic sleeve 4, the boss 15 and the first elastic sleeve 3, the driving pin 2 is fastened through the specially-made nut 5 and the stop screw 6, the self-made screw pin 8 penetrates through the threaded hole 22 from the notch 17 and is inserted into the pin hole 1603 of the rotor dynamic balance connecting disc 16, and the screw 9 penetrates through the through hole 23 from the notch 17 and is connected with the second screw hole 1604 of the dynamic balance connecting disc 16.
The transmission pin 2 is in interference connection with the transition disc 7, and the transmission pin 2 is prevented from rotating along with the special nut 5 during screwing.
The self-made screw pin 8 comprises a screw pin rod 801 and a screw pin head 802 arranged at the top of the screw pin rod 801; the screw pin rod 801 comprises a threaded portion 803 and a cylindrical pin portion 804 arranged below the threaded portion 803, and the tail end of the cylindrical pin portion 804 is subjected to large chamfering treatment. The head 802 of the bolt pin is a cylindrical head provided with a square hole 805, and the square hole is convenient for screwing by using a torque wrench.
The specially-made nut 5 comprises a nut body 501 and a screw hole 502 penetrating through the nut body 501; the nut body 501 comprises a tail part 503 and a head part 504 which is positioned above the tail part 503 and has a diameter smaller than that of the tail part 503, wherein a locking threaded hole 505 which is horizontally arranged and matched with the locking screw 6 is arranged on the side surface of the head part 504, and a tangent plane 506 matched with a wrench is arranged on the outer side surface of the head part 504.
The bottom of the tail part 503 is cylindrical, and the middle of the tail part 503 is inclined towards the connection part with the head part 504. The head portion 504 and the tail portion 503 are integrally formed.
The first tray body 18 is provided with a plurality of lifting holes 27 for lifting or turning.
The diameter of the excircle of the first elastic sleeve 3 and the diameter of the excircle of the second elastic sleeve 4 are 0.3-0.5mm smaller than that of the macropore 19. The boss 15 is in a hollow ring shape and is arranged on the inner wall of the large hole 19. The second elastic sleeve 4 is arranged in the large hole 19, and the tail part of the second elastic sleeve protrudes 3mm from the surface of the inner boss connecting disc 1. So as to ensure that a certain safety clearance is left between the inner boss connecting disc 1 and the transition disc 7 and prevent the collision caused by the axial collision of the rotor.
As shown in fig. 10 to 11, the dynamic balance connection disc 16 includes an annular connection disc body 1601, a first screw hole 1602 provided in an inner ring of the disc body, pin holes 1603 provided in the connection disc body 1601 in vertical symmetry, a second screw hole 1604 provided in the connection disc body 1601 in horizontal symmetry, and a counter bore 1605 provided between the pin holes 1603 and the second screw hole 1604, wherein the first screw hole 1602 is connected to a dynamic balancing machine, the pin holes 1603 are connected to a self-control screw pin 8, the second screw hole 1604 is connected to a screw 9, and the counter bore 1605 is connected to the generator rotor coupling 14 through a connection component.
The working process of the utility model is as follows:
at first the generator is before the examination, and the rotor must advance the high speed dynamic balance test, the utility model discloses used dynamic balance connection pad need not to dismantle can directly be used for the generator to try on a trial run, saves and dismantles the dynamic balance connection pad step, and dynamic balance connection pad directly adopts the dynamic balance connection pad among the prior art, and structural only need the design have with the generator try on a trial run be connected the hole that the transmission is connected the dish can.
1. An inner boss connecting disc is sleeved on a rotating shaft of the dragging machine in a hot mode, and a stop key is inserted into a key groove.
2. Connecting the inner boss connecting disc and the transition disc into a whole:
the transmission pin is in interference connection with the transition disc, the second elastic sleeve is sleeved on the transmission pin and penetrates into the inner boss connecting disc, then the first elastic sleeve is sleeved on the transmission pin and is screwed by a special nut, the gap between the transition disc and the inner boss connecting disc is adjusted to meet the requirement, and a stop screw is screwed in.
(1, 2 steps are only carried out when the installation is carried out for the first time, and the disassembly is not required except for maintenance)
3. The generator test run is connected with the transmission device and the dynamic balance connecting disc of the generator rotor:
and screwing the self-made screw pin into a threaded hole of the transition disc from the gap of the inner boss connecting disc, adjusting the position of the towing engine until the cylindrical pin part of the self-made screw pin can penetrate through the pin hole of the dynamic balance connecting disc, and then penetrating through the through hole from the gap by using the screw to be connected and fastened with the dynamic balance connecting disc.
The utility model discloses a head diameter of purpose-built nut is little for reduce weight, the centrifugal force that receives when reducing the rotation improves the factor of safety of drive pin, the diameter of afterbody is slightly bigger, be used for increasing the area of contact with first elastic sleeve. The set threaded hole is used for screwing in a stop screw, so that the nut is prevented from flying out when the trial run rotates at a high speed, and the head is milled into two tangent planes which are convenient to screw up by a wrench.
Claims (10)
1. A universal type generator test run connection transmission device is characterized by comprising an inner boss connecting disc, a transmission pin, a first elastic sleeve, a second elastic sleeve, a transition disc, a special nut, a self-made screw pin, a screw and a stop screw; the inner boss connecting disc comprises an annular first disc body, four arc-shaped notches uniformly arranged on the outer ring of the disc body, a plurality of large holes uniformly arranged between adjacent notches and penetrating through the first disc body, a boss arranged in the middle of the large holes, and a key groove arranged on the inner wall of the first disc body and matched with the stop key; an inner hole at the center of the first disc body is sleeved on a shaft of the tractor in a hot mode, and the first elastic sleeve and the second elastic sleeve are sleeved inside a large hole of the inner boss connecting disc and are located on the two sides of the boss respectively; the transition disc comprises an annular second disc body, threaded holes which are symmetrically arranged on the second disc body from top to bottom, through holes which are symmetrically arranged on the second disc body from left to right, and holes which are uniformly arranged between the adjacent threaded holes and through holes and correspond to the large holes on the first disc body; the transmission pin sequentially penetrates through the hole, the second elastic sleeve, the boss and the first elastic sleeve, the transmission pin is fastened through a special nut and a stop screw, the self-made screw pin penetrates through the threaded hole from the notch of the inner boss connecting disc and is inserted into the pin hole of the rotor dynamic balance connecting disc, and the screw penetrates through the through hole from the notch to be connected with the dynamic balance connecting disc.
2. The universal generator commissioning connection transmission device of claim 1, wherein the transmission pin is in interference connection with the transition disc to prevent the transmission pin from rotating when the special nut is screwed.
3. The universal trial run connection transmission device for the generator according to claim 1, wherein the self-made bolt comprises a bolt rod and a bolt head arranged at the top of the bolt rod; the screw pin rod comprises a thread part and a cylindrical pin part arranged below the thread part, and the tail end of the cylindrical pin part is subjected to large chamfering treatment.
4. The universal trial run connection transmission device for the generator as claimed in claim 3, wherein the head of the screw pin is a cylindrical head with a square hole, and the square hole is convenient for screwing by using a torque wrench.
5. The universal generator test run connection transmission device as claimed in claim 1, wherein the special nut comprises a nut body, a screw hole penetrating through the nut body; the nut body comprises a tail part and a head part, the head part is located above the tail part, the diameter of the head part is smaller than that of the tail part, a stop threaded hole which is horizontally arranged and matched with the stop screw is formed in the side face of the head part, and a tangent plane matched with the wrench is formed in the outer side face of the head part.
6. The universal trial run connection transmission device for the generator as claimed in claim 5, wherein the tail is cylindrical at the bottom, the middle of the tail is inclined toward the connection with the head, and the head and the tail are integrally molded.
7. The universal trial run connection transmission device for the generator as claimed in claim 1, wherein the first tray body is provided with a plurality of lifting holes for lifting or turning.
8. The universal generator test run connection transmission device as claimed in claim 1, wherein the outer diameter of the first elastic sleeve and the second elastic sleeve is 0.3-0.5mm smaller than the diameter of the large hole.
9. The universal trial run connection transmission device for the generator as claimed in claim 1, wherein the boss is hollow and annular and is disposed on the inner wall of the large hole.
10. The universal trial run connection transmission device for the generator as claimed in claim 1, wherein the second elastic sleeve is installed in the large hole, and the tail part of the second elastic sleeve protrudes 3mm from the surface of the inner boss connecting disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020007185.XU CN211127445U (en) | 2020-01-03 | 2020-01-03 | Universal type generator test run connection transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020007185.XU CN211127445U (en) | 2020-01-03 | 2020-01-03 | Universal type generator test run connection transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211127445U true CN211127445U (en) | 2020-07-28 |
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ID=71700703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020007185.XU Active CN211127445U (en) | 2020-01-03 | 2020-01-03 | Universal type generator test run connection transmission device |
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| CN (1) | CN211127445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677091A (en) * | 2020-11-20 | 2021-04-20 | 惠阳航空螺旋桨有限责任公司 | Static disassembling tool with small space tight fit |
-
2020
- 2020-01-03 CN CN202020007185.XU patent/CN211127445U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677091A (en) * | 2020-11-20 | 2021-04-20 | 惠阳航空螺旋桨有限责任公司 | Static disassembling tool with small space tight fit |
| CN112677091B (en) * | 2020-11-20 | 2022-05-06 | 惠阳航空螺旋桨有限责任公司 | Static disassembling tool with small space tight fit |
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