CN217643062U - Integrated encoder for top drive - Google Patents
Integrated encoder for top drive Download PDFInfo
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- CN217643062U CN217643062U CN202221660556.XU CN202221660556U CN217643062U CN 217643062 U CN217643062 U CN 217643062U CN 202221660556 U CN202221660556 U CN 202221660556U CN 217643062 U CN217643062 U CN 217643062U
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Abstract
The utility model relates to an integrated form encoder for top drive, integrated form encoder is connected with brake disc mechanism, and brake disc mechanism is connected with PMSM's main shaft, realizes integrated encoder to PMSM's revolution record, and integrated form encoder includes: the encoder body comprises a counting end and a connecting end; the encoder shaft penetrates through the connecting end, the counting end is used for measuring the revolution of the encoder shaft, a key groove is formed in the encoder shaft, and a B-type key is arranged in the key groove; the self-lubricating nylon gear is provided with a key groove on the inner ring, the self-lubricating nylon gear is fixedly connected with the encoder shaft through a B-type key, and the self-lubricating nylon gear is meshed with a rotating gear of the brake disc mechanism. The encoder is integrated with the permanent magnet synchronous motor, the top drive is suitable for the space, and the purpose of synchronously transmitting the revolution and accurately controlling the rotating speed is achieved by taking a gear on the encoder shaft as transmission.
Description
Technical Field
The utility model relates to an encoder application technology field especially relates to an integrated form encoder for top is driven.
Background
The encoder plays an important role as a top drive device and is an important electrical element for realizing the normal and stable operation of the top drive. When the top drive is used for drilling, the permanent magnet synchronous motor serves as a direct output power source, the rotating speed of a main shaft on the permanent magnet synchronous motor is synchronously transmitted to the encoder, the encoder identifies that the rotating speed of the main shaft can be fed back to the PLC in an electric signal form, the PLC receives the electric signal and then automatically identifies whether the rotating speed of the encoder is normal or not, if the rotating speed is not stable, the rotating speed waveform is abnormal, and the frequency converter receives the signal and enables the automatic regulation rotating speed of the permanent magnet synchronous motor to reach the normal rotating speed. Therefore, the top drive can drill normally and stably, and the use efficiency of the top drive is improved.
Present traditional encoder, because receive the top and drive the restriction on the inner space, can't integrate and drive to the top inside, easily cause the top to drive the interference between inside motor and the spare part, the encoder size that directly is connected with motor spindle simultaneously is great, and then easily cause the increase that the whole volume was driven on the top, influence top drives the application scope, furthermore, current traditional encoder passes through hold-in range transmission moment of torsion, the rotational speed that makes the code discernment is not accurate, the inaccurate can cause the encoder mistake to report to the police not of rotational speed, lead to pushing up to drive frequent unable normal work.
Therefore, there is a need to develop an integrated encoder for top drive, which integrates the encoder with a permanent magnet synchronous motor, is suitable for top drive in space, and achieves the purpose of synchronously transmitting the revolution and accurately controlling the revolution by using a gear on the shaft of the encoder as transmission.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.
In view of this, the utility model provides an integrated form encoder for top drive, integrated form encoder with brake disc mechanism connects, brake disc mechanism is connected with PMSM's main shaft, realizes that integrated encoder is to PMSM's revolution record, integrated form encoder includes:
the encoder body comprises a counting end and a connecting end;
the encoder shaft penetrates through the connecting end, the counting end is used for metering the revolution of the encoder shaft, a key groove is formed in the encoder shaft, and a B-type key is arranged in the key groove;
the self-lubricating nylon gear, be equipped with the keyway on the inner circle of self-lubricating nylon gear, the self-lubricating nylon gear passes through B type key with encoder axle fixed connection, the self-lubricating nylon gear with the running gear meshing of brake disc mechanism.
Further, the integrated encoder further comprises:
an encoder enclosure including a first open end and a second open end, the counting end disposed within the encoder enclosure, the encoder shaft and the connecting end located outside of the second open end;
the apron, the apron set up in first open end department, the apron deviates from encoder cover one side is equipped with the arch, be equipped with the mounting hole in the arch.
Further, a cover plate pad is arranged between the contact positions of the cover plate and the encoder cover, and the thickness of the cover plate pad is 0.8mm to 1.2mm.
Further, the integrated encoder further comprises:
the support comprises a square frame and connecting plates arranged on two sides of the square frame, a through hole is formed in the square frame, the axis and the two sides of the through hole are perpendicular to the connection of the connecting plates, an encoder shaft penetrates through the through hole, the encoder shaft is connected with the square frame through a bearing, and the connecting plates are fixedly connected with two sides of the second opening end.
Furthermore, the axis department of encoder axle runs through and is equipped with first fluid passage, the encoder axle with the bearing junction is equipped with the second fluid passage, the second fluid passage with first fluid passage link up perpendicularly, the encoder axle is close to one of self-lubricating nylon gear is served and is equipped with through-type oiling cup, the other end of encoder axle is sealed through hexagon socket head cap screw.
Further, the integrated encoder further comprises:
and the thrust washer is positioned between the bracket and the encoder shaft, is arranged close to one end of the straight-through type pressure injection oil cup, is also positioned above the bearing, and is fixedly connected with the bracket through a pin.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
with the epaxial self-lubricating nylon gear of encoder and the running gear of brake disc mechanism to be connected, brake disc mechanism and PMSM's main shaft, and then it is rotatory to drive the encoder axle through the PMSM main shaft rotation, then the revolution of encoder axle is calculated to the count end through the encoder body can obtain PMSM's revolution, only need use little encoder can, avoid the interference problem of direct mount encoder, the size of direct mount encoder has been reduced simultaneously, through gear drive, play synchronous transmission revolution, realize the purpose of accurate control rotational speed, the transmission precision is higher, improve the resistant nature of integrated form encoder, reduce the fault rate, the service life is prolonged.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a connection schematic of an integrated encoder according to the present invention;
fig. 2 shows a front view of an integrated encoder according to the present invention;
fig. 3 shows a top view of an integrated encoder according to the present invention;
fig. 4 shows a schematic view of an encoder shaft according to the present invention;
figure 5a shows a side view of a bracket according to the invention;
fig. 5b shows a top view of a bracket according to the invention;
fig. 6 shows a schematic view of a cover plate according to the invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
100 integrated type encoder, 101 straight-through type pressure filling oil cup, 102 encoder shaft, 1021 key slot, 1022 first liquid channel, 1023 second liquid channel, 103 thrust washer, 104 pin, 105 bearing, 106 support, 1061 square frame, 1062 connecting plate, 1063 through hole, 107 self-lubricating nylon gear, 108B type key, 109 encoder body, 110 hexagon socket head cap screw, 111 encoder cover, 112 cover plate pad, 113 cover plate, 1131 protrusion, 1132 mounting hole, 200 brake disc mechanism, 300 permanent magnet synchronous motor.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Examples
Fig. 1 shows a connection schematic of an integrated encoder according to the present invention; fig. 2 shows a front view of an integrated encoder according to the present invention; fig. 3 shows a top view of an integrated encoder according to the present invention.
As shown in fig. 1 to 3, the present embodiment provides an integrated encoder for top drive, the integrated encoder 100 is connected to a brake disc mechanism 200, the brake disc mechanism 200 is connected to a spindle of a permanent magnet synchronous motor 300, so as to record the number of revolutions of the permanent magnet synchronous motor 300 by the integrated encoder 100, and the integrated encoder 100 includes:
an encoder body 109 including a counting end and a connecting end;
the encoder shaft 102 penetrates through the connecting end, the counting end is used for measuring the revolution of the encoder shaft 102, a key slot 1021 is formed in the encoder shaft 102, and a B-type key 108 is arranged in the key slot 1021;
the self-lubricating nylon gear 107 is characterized in that a key groove is formed in the inner ring of the self-lubricating nylon gear 107, the self-lubricating nylon gear 107 is fixedly connected with the encoder shaft 102 through a B-type key 108, and the self-lubricating nylon gear 107 is meshed with a rotating gear of the brake disc mechanism 200.
With self-lubricating nylon gear 107 on encoder axle 102 and brake disc mechanism 200's running gear connection, brake disc mechanism 200 and PMSM 300's main shaft, and then it is rotatory to drive encoder axle 102 through PMSM 300's main shaft rotation, then the revolution of encoder axle 102 can be obtained to the count end calculation encoder axle through encoder body 109 (the number of teeth of running gear and the number of teeth of self-lubricating nylon gear 107 can pass through the calculation, obtain PMSM 300's revolution according to encoder axle 102's revolution), only need use little encoder can, avoid the interference problem of direct mount encoder, the size of direct mount encoder has been reduced simultaneously, through gear drive, play synchronous transmission revolution, realize the purpose of accurate control rotational speed, transmission precision is higher, improve integrated form encoder 100's durable nature, reduce the fault rate, improve the service life.
It should be noted that, an expansion sleeve is arranged in the connecting end of the encoder body 109, which can adjust the tightness of the encoder shaft 102, so that the encoder shaft 102 does not move up and down randomly; through B type key 108 with self-lubricating nylon gear 107 fixed with encoder axle 102, fixed strength is high, can prevent effectively that self-lubricating nylon gear 107 from losing when rotating and changeing, also means that self-lubricating nylon gear 107 and encoder axle 102 can synchronous revolution, a rotation back can not appear, another postpones the pivoted condition.
Fig. 6 shows a schematic view of a cover plate according to the invention.
As shown in fig. 6, the integrated encoder 100 further includes:
an encoder cover 111 including a first open end and a second open end, the counting end being disposed inside the encoder cover 111, the encoder shaft 102 and the connecting end being located outside the second open end;
the cover plate 113, the cover plate 113 sets up in first open end department, and cover plate 113 deviates from encoder cover 111 one side and is equipped with the arch 1131, is equipped with mounting hole 1132 on the arch 1131.
The protrusion 1131 is provided on the side of the cover plate 113 away from the encoder cover 111 to satisfy the space requirement for wiring the electrical components of the encoder body 109, and the mounting hole 1132 is provided to connect the electric wire of the encoder body 109 to the top drive box.
It should be noted that, in order to prevent the encoder body 109 from being damaged by the external severe environment and other factors, such as rain and snow weather, sand and dust weather, falling objects, and other environments, the encoder body 109 is provided with an encoder cover 111 outside the counting end (the self-lubricating nylon gear 107 on the connecting end is engaged with the rotating gear in the brake disc mechanism 200, and therefore the connecting end is not covered by the encoder cover 111), wherein the interface between the encoder cover 111 and the brake disc mechanism 200 is sealed by a rubber pad, so as to resist the damage caused by the external factors, the encoder body 109 and the encoder cover 111 are integrated together as an assembly, and then the assembly and the permanent magnet synchronous motor 300 are fixed together by a positioning pin.
Further, a cover pad 112 is provided between the contact positions of the cover 113 and the encoder cover 111, and the thickness of the cover pad 112 is 0.8mm to 1.2mm.
It should be noted that, in this embodiment, the thickness of the cover plate pad 112 is 1mm, and the cover plate pad 112 is a rubber pad, which can improve the sealing effect.
Fig. 5a shows a side view of a bracket according to the invention; fig. 5b shows a top view of a bracket according to the invention.
As shown in fig. 5a and 5b, the integrated encoder 100 further includes:
the support 106 comprises a square frame 1061 and connecting plates 1062 arranged on two sides of the square frame 1061, a through hole 1063 is formed in the square frame 1061, the axis of the through hole 1063 is perpendicular to the connection between the connecting plates 1062 on the two sides, the encoder shaft 102 penetrates through the through hole 1063, the encoder shaft 102 is connected with the square frame 1061 through a bearing 105, and the connecting plates 1062 are fixedly connected with two sides of the second opening end.
The bearing 105 disposed in the through hole 1063 of the square frame 1061 is an oil-free bearing, and does not need to be additionally filled with lubricating oil for maintaining the bearing, and simultaneously plays a role in preventing friction from being generated and damaging the encoder shaft 102 when the encoder shaft 102 rotates.
It should be noted that the support 106 plays a role in fixing the encoder body 109 and the encoder shaft 102, and if the support 106 is not used, the encoder body 109 and the encoder shaft 102 are in a free state, the encoder body 109 can swing left and right, which causes inaccurate transmission and affects the use effect of the encoder body 109.
Fig. 4 shows a schematic view of an encoder shaft according to the invention.
As shown in fig. 4, a first liquid channel 1022 penetrates through the axis of the encoder shaft 102, a second liquid channel 1023 is arranged at the joint of the encoder shaft 102 and the bearing 105, the second liquid channel 1023 vertically penetrates through the first liquid channel 1022, a straight-through type oil injection pressing cup 101 is arranged at one end of the encoder shaft 102 close to the self-lubricating nylon gear 107, and the other end of the encoder shaft 102 is sealed by a hexagon socket head cap screw 110.
It should be noted that, the first fluid passage 1022 and the second fluid passage 1023 in the encoder shaft 102 are used for lubricating the bearings 105 at both ends, and although the bearings 105 are selected to be oil-free bearings, on the basis of this, the bearings 105 are lubricated by grease in the straight-through type oil injection cup 101, so that the service life of the bearings 105 can be further prolonged, wherein the other end of the first fluid passage 1022 is sealed by the socket head cap screw 110, and because the socket head cap screw 110 is of a fine thread type, the sealing effect of the first fluid passage 1022 can be improved, and leakage of the grease can be avoided.
Further, the integrated encoder 100 further includes:
and the thrust washer 103 is positioned between the bracket 106 and the encoder shaft 102, the thrust washer 103 is arranged close to one end of the through-type pressure filling oil cup 101, the thrust washer 103 is also positioned above the bearing 105, and the thrust washer 103 is fixedly connected with the bracket 106 through the pin 104.
It should be noted that the thrust washer 103 and the bracket 106 are provided with a pin hole of phi 4, the thrust washer 103 and the bracket 106 are fixed together by the pin 104, then the thrust washer 103 is pressed by the end face of the encoder shaft 102, the thrust washer 103 is located above the bearing 105, the bearing 105 can be prevented from moving upwards, and meanwhile, the thrust washer 103 is made of a wear-resistant material, so that the encoder shaft 105 can be prevented from being worn in the rotating process, and the transmission precision of the encoder shaft 105 is prevented from being affected.
Specifically, when the integrated encoder 100 is installed, the straight-through type pressure filling oil cup 101 and the hexagon socket head cap screw 110 are firstly installed at two ends of the encoder shaft 102 (the first liquid channel 1022), the two bearings 105 are installed in the through hole 1063 of the bracket 106, the thrust washer 103 and the pin 104 are installed on the bracket 106, and it is ensured that one end of the thrust washer 103 is located on the bearing 105, the B-shaped key 108 is installed in the key groove 1021 of the encoder shaft 102, the bracket 106 is installed on the encoder cover 111, the self-lubricating nylon gear 107 is placed between the connecting end of the encoder body 109 and the bracket 106, the B-shaped key 108 is aligned with the key groove of the self-lubricating nylon gear 107, the encoder shaft 102 sequentially passes through one end of the bracket 1016, the self-lubricating nylon gear 107, the connecting end of the encoder body 109 and the other end of the bracket 106, and is fixedly connected with the outer frame of the brake disc mechanism 200 through the bracket 106, the meshing between the rotating gear and the self-lubricating nylon gear 107 is realized, and finally the cover plate 113 is installed.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (6)
1. The utility model provides an integrated form encoder for top is driven, its characterized in that, integrated form encoder is connected with brake disc mechanism, brake disc mechanism is connected with PMSM's main shaft, realizes integrated encoder is right PMSM's revolution record, integrated form encoder includes:
the encoder body comprises a counting end and a connecting end;
the encoder shaft penetrates through the connecting end, the counting end is used for metering the revolution of the encoder shaft, a key groove is formed in the encoder shaft, and a B-type key is arranged in the key groove;
the self-lubricating nylon gear, the interior circle of self-lubricating nylon gear is equipped with the keyway, the self-lubricating nylon gear passes through B type key with encoder axle fixed connection, the self-lubricating nylon gear with the running gear meshing of brake disc mechanism.
2. The integrated encoder for a top drive of claim 1, further comprising:
an encoder shroud including a first open end and a second open end, the counting end disposed within the encoder shroud, the encoder shaft and the connecting end located outside of the second open end;
the apron, the apron set up in first open end department, the apron deviates from encoder cover one side is equipped with the arch, be equipped with the mounting hole in the arch.
3. The integrated encoder for a top drive of claim 2, wherein a cover plate pad is provided between the contact locations of the cover plate and the encoder enclosure, the cover plate pad having a thickness of 0.8mm to 1.2mm.
4. The integrated encoder for a top drive of claim 2, further comprising:
the support comprises a square frame and connecting plates arranged on two sides of the square frame, a through hole is formed in the square frame, the axis and the two sides of the through hole are perpendicular to the connection of the connecting plates, an encoder shaft penetrates through the through hole, the encoder shaft is connected with the square frame through a bearing, and the connecting plates are fixedly connected with two sides of the second opening end.
5. The integrated encoder for the top drive according to claim 4, wherein a first liquid passage is arranged at the axis of the encoder shaft in a penetrating manner, a second liquid passage is arranged at the joint of the encoder shaft and the bearing, the second liquid passage is vertically communicated with the first liquid passage, a straight-through type oil injection pressing cup is arranged at one end, close to the self-lubricating nylon gear, of the encoder shaft, and the other end of the encoder shaft is closed through a hexagon socket head cap screw.
6. The integrated encoder for a top drive of claim 5, further comprising:
and the thrust washer is positioned between the bracket and the encoder shaft, is arranged close to one end of the through type pressure injection oil cup, is also positioned above the bearing and is fixedly connected with the bracket through a pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221660556.XU CN217643062U (en) | 2022-06-29 | 2022-06-29 | Integrated encoder for top drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221660556.XU CN217643062U (en) | 2022-06-29 | 2022-06-29 | Integrated encoder for top drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217643062U true CN217643062U (en) | 2022-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221660556.XU Active CN217643062U (en) | 2022-06-29 | 2022-06-29 | Integrated encoder for top drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217643062U (en) |
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2022
- 2022-06-29 CN CN202221660556.XU patent/CN217643062U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Integrated encoder for top drive Effective date of registration: 20230605 Granted publication date: 20221021 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2023210000131 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |