CN116717548A - Symmetrical semicircular spline connecting sleeve and processing method thereof - Google Patents

Symmetrical semicircular spline connecting sleeve and processing method thereof Download PDF

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Publication number
CN116717548A
CN116717548A CN202310530378.1A CN202310530378A CN116717548A CN 116717548 A CN116717548 A CN 116717548A CN 202310530378 A CN202310530378 A CN 202310530378A CN 116717548 A CN116717548 A CN 116717548A
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CN
China
Prior art keywords
semicircular ring
boss
connecting seat
processing
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310530378.1A
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Chinese (zh)
Inventor
孙万喜
朱海鹏
张海燕
刘晓燕
杨欣荣
马梅娟
王彩君
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Ningxia Tiandi Benniu Industrial Group Co Ltd
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Ningxia Tiandi Benniu Industrial Group Co Ltd
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Application filed by Ningxia Tiandi Benniu Industrial Group Co Ltd filed Critical Ningxia Tiandi Benniu Industrial Group Co Ltd
Priority to CN202310530378.1A priority Critical patent/CN116717548A/en
Publication of CN116717548A publication Critical patent/CN116717548A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

A symmetrical semicircular spline connecting sleeve comprises a sleeve body, wherein a square inner hole is formed in the inner wall of the sleeve body, and an outer key groove is formed in the outer circular wall of the sleeve body; the sleeve body comprises a left semicircular ring and a right semicircular ring which are symmetrical with each other; the lower extreme of left portion semicircle ring is articulated with the lower extreme of right portion semicircle ring, and the upper end of left portion semicircle ring is laminated with the upper end of right portion semicircle ring. A symmetrical semicircle spline connecting sleeve processing method comprises forging; rough machining; heat treatment; processing a triangular welding area; processing a boss and a connecting seat; assembling and welding; finish machining; the left semicircular ring and the right semicircular ring are separated; the left semicircular ring and the right semicircular ring are combined to form a combined piece. The invention can effectively ensure the stability and reliability of the two symmetrical circular rings in the use process, and simultaneously ensure the dimensional accuracy and the position degree of the two symmetrical circular arcs.

Description

Symmetrical semicircular spline connecting sleeve and processing method thereof
Technical Field
The invention relates to the technical field of drilling machines, in particular to a symmetrical semicircular spline connecting sleeve and a processing method thereof.
Background
The spline connection consists of an inner spline and an outer spline, wherein the inner spline and the outer spline are multi-tooth parts, the spline on the surface of the inner cylinder is the inner spline, and the spline on the surface of the outer cylinder is the outer spline, so that the spline housing is actually the inner spline, and the spline shaft is the outer spline. The spline connection can be divided into rectangular splines and involute splines according to different tooth profiles, and is widely applied to aeroengines, automobiles, gas turbines, machine tools, engineering machinery, tractors, agricultural machinery, general mechanical transmission devices and the like.
In a reverse well drilling rig, it is often necessary to connect the drill pipe with the main shaft via a spline connection sleeve to transmit power to the drill pipe. At present, the spline connecting sleeve is of an integrated structure, so that the assembly and disassembly are inconvenient, and the maintenance time is prolonged. In order to solve the above problems, the prior art adopts the mode of integral blanking and integral processing, and then separating the processed material into two independent parts by utilizing a linear cutting or end milling cutter from the middle. The processing in the mode has the defects that after the whole part is cut, the defect is formed in the middle of the part, so that after the two parts are assembled together in a butt joint way, the whole outline of the part cannot form a complete outline circle, and the two parts cannot be tightly attached in normal use; because can not closely laminate, can lead to spline housing and outside and inboard adapting unit to take place the transmission unstable, can shake, can appear wearing and tearing even fracture for a long time use.
Disclosure of Invention
In order to solve the technical problems in the prior art, it is necessary to provide a symmetrical semicircular spline connecting sleeve.
The symmetrical semicircular spline connecting sleeve comprises a sleeve body, wherein a square inner hole is formed in the inner wall of the sleeve body, and an outer key groove is formed in the outer circular wall of the sleeve body; the sleeve body comprises a left semicircular ring and a right semicircular ring which are symmetrical with each other; the lower end of the left semicircular ring is hinged with the lower end of the right semicircular ring, and the upper end of the left semicircular ring is attached to the upper end of the right semicircular ring; the lower end of the left semicircular ring is provided with a boss, and a first pin hole is formed in the boss along the axial direction of the left semicircular ring; the lower end of the right semicircular ring is provided with a connecting seat, a second pin hole penetrating through the connecting seat is formed in the connecting seat along the axial direction of the right semicircular ring, a groove allowing the boss to be inserted is formed in the connecting seat, and a pin shaft is sequentially inserted into the first pin hole and the second pin hole, so that the left semicircular ring and the right semicircular ring can be connected; the left semicircular ring and the right semicircular ring are provided with through holes.
It is also necessary to provide a method for machining the symmetrical semicircular spline connecting sleeve.
A method for processing a symmetrical semicircular spline connecting sleeve, which comprises the following steps,
s1: forging, namely forging a blank into semicircular single parts, namely a left semicircular ring and a right semicircular ring;
s2: rough machining, namely rough machining is carried out on each side of the part, and each dimension is reserved;
s3: heat treatment, namely performing tempering heat treatment on the parts to ensure that the hardness of the parts meets the specified requirements;
s4: processing a triangular welding area, namely processing the semicircular upper parts of the left semicircular ring and the right semicircular ring, reserving the triangular welding area, and processing the upper parts of the triangular welding area in place;
s5: the method comprises the steps of processing a boss and a connecting seat, processing the lower parts of semicircular arcs of a left semicircular ring and a right semicircular ring, processing the boss at the lower end of the left semicircular ring, processing the connecting seat at the lower end of the right semicircular ring, processing a groove allowing the boss to be inserted in the connecting seat, wherein the lower end surfaces of the boss and the connecting seat are straight surfaces and are reserved;
s6: assembling and welding, namely assembling the left semicircular ring and the right semicircular ring to form a whole circle after assembling the components, wherein the upper end is welded in a triangular area, and the lower end is welded in a welding area of the lower end surfaces of the boss and the connecting seat;
s7: finish machining, namely respectively carrying out finish turning on the outer circle, drilling through holes, milling square inner holes and milling outer key grooves after welding, and finally finish milling pin holes at the hinging positions of the boss and the connecting seat;
s8: separating the left semicircular ring from the right semicircular ring, milling the welding seam of the triangular region at the upper end, the welding seam of the boss and the welding seam at the lower end surface of the connecting seat by using an end mill after all the sizes are processed, milling a process platform with reserved upper and lower ends, and separating the left semicircular ring and the right semicircular ring into single units;
s9: and assembling the left semicircular ring and the right semicircular ring into a combined piece, and assembling a hinge pin shaft at the lower end to finish processing.
Preferably, in the step S3, the hardness should be 280HB to 320HB.
Preferably, in step S7, the matched dimensions of all the left semicircular ring and the right semicircular ring with the outside are processed in the combined piece, so as to ensure the precision.
According to the technical scheme, the symmetrical semicircular spline connecting sleeve and the processing method thereof provided by the invention adopt a split-total-split mode, firstly, the symmetrical semicircular spline connecting sleeve is subjected to separate blanking rough processing, then is subjected to combined welding finish processing, and is further subjected to milling to be divided into two separate parts, when the two processed parts are combined together again, the two parts can form a complete contour circle after being combined, so that the two parts can be tightly attached during normal use; the method of the invention not only effectively ensures the uniformity of each structure of the part and the precision of each size to meet the requirements, has simple and efficient processing method and safe and stable processing process, but also can effectively ensure the stability and reliability of the two symmetrical circular rings in the use process, and simultaneously ensures the dimensional precision and the position degree of the two symmetrical circular arcs.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the structure of the invention.
Fig. 2 is a schematic cross-sectional view of the invention of fig. 1.
Fig. 3 is a schematic view of the left semicircular ring of the invention.
Fig. 4 is a schematic side view of the invention of fig. 3.
Fig. 5 is a schematic view of the right semicircular ring of the invention.
Fig. 6 is a schematic side view of the invention of fig. 5.
In the figure: the sleeve body 01, the left semicircular ring 11, the right semicircular ring 12, the square inner hole 02, the outer key groove 03, the boss 04, the first pin hole 41, the connecting seat 05, the second pin hole 51, the groove 52, the through hole 06, the triangular welding area 07, the lower end face welding area 08, the arc-shaped structure 09 and the arc-shaped groove 10.
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.
In the description of the present invention, it should be understood that the terms "upper," "middle," "outer," "inner," "lower," and the like are used for indicating orientations or positional relationships, merely to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present invention.
Referring to fig. 1 to 6, in one embodiment, the present invention provides a symmetrical semicircular spline connection sleeve, which comprises a sleeve body 01, wherein a square inner hole 02 is arranged on the inner wall of the sleeve body 01, and an outer key groove 03 is arranged on the outer circular wall of the sleeve body 01; the sleeve body 01 comprises a left semicircular ring 11 and a right semicircular ring 12 which are symmetrical with each other; the lower end of the left semicircular ring 11 is hinged with the lower end of the right semicircular ring 12, and the upper end of the left semicircular ring 11 is attached to the upper end of the right semicircular ring 12.
A boss 04 is arranged at the lower end of the left semicircular ring 11, and a first pin hole 41 is formed in the boss 04 along the axial direction of the left semicircular ring 11; the lower extreme of right part semicircle ring 12 is equipped with connecting seat 05, and the second pinhole 51 that runs through connecting seat 05 has been seted up along the axial direction of right part semicircle ring 12 on the connecting seat 05, has seted up the recess 52 that allows boss 04 to insert on the connecting seat 05, inserts the round pin axle in proper order in first pinhole 41 and the second pinhole 51, can be connected left part semicircle ring 11 and right part semicircle ring 12.
The right angle of square hole 02 department is arc structure 09, forms circular arc groove 10 at the both ends of arc structure 09. On one hand, the installation can be conveniently carried out, and on the other hand, the contact area between the main shaft and the square inner hole 02 is increased, so that the connection stability is improved.
The left semicircular ring 11 and the right semicircular ring 12 are provided with through holes 06. When the spline connecting sleeve is installed, the bolts can be screwed into the through holes 06, and the left semicircular ring 11 and the right semicircular ring 12 are further fixed on the main shaft, so that the axial displacement of the spline connecting sleeve is limited, and the overall connection stability and the connection strength are improved.
In one embodiment, the invention provides a method for processing a symmetrical semicircular spline connecting sleeve, which comprises the following steps,
s1: forging the blank into semicircular single parts, namely a left semicircular ring 11 and a right semicircular ring 12;
s2: rough machining is carried out on each side of the part, and each dimension is reserved;
s3: carrying out tempering heat treatment on the part to ensure that the hardness of the part reaches 280 HB-320 HB;
s4: the upper parts of semicircular arcs of the left semicircular ring 11 and the right semicircular ring 12 are processed, the allowance of the triangular welding area 07 is 2mm, and the purpose of the allowance is to completely process and remove the excessive amount of the welding line and the welding surface after the whole processing, so that the processing precision can be ensured; the upper part of the triangular welding area 07 is machined in place, and the purpose of the machining in place is to ensure that the left semicircular ring 11 and the right semicircular ring 12 can be completely assembled in place when in use, and the matching size with an external spline and an inner shaft is correct, so that the power transmission of equipment is ensured;
s5: processing the semicircular lower parts of the left semicircular ring 11 and the right semicircular ring 12, processing a boss 04 at the lower end of the left semicircular ring 11, processing a connecting seat 05 at the lower end of the right semicircular ring 12, and processing a groove 52 on the connecting seat 05, wherein the groove 52 can allow the boss 04 to be inserted, and the lower end surfaces of the boss 04 and the connecting seat 05 are straight surfaces and have a allowance of 5mm; the welding head can be used as a welding part, the lower end face is outwards, and the post-welding processing is easier;
s6: assembling the left semicircular ring 11 and the right semicircular ring 12 to form a complete circle, wherein the upper end of the complete circle is welded in a triangular area, and the lower end of the complete circle is welded in a welding area 08 of the lower end surfaces of the boss 04 and the connecting seat 05; after the components are combined, a whole circle is formed, all the sizes can be processed according to a standard, and all the sizes of the parts are ensured to meet the requirements;
s7: after welding, respectively performing finish turning on the outer circle, drilling a through hole 06, milling a square inner hole 02 and an outer key groove 03, and finally finish milling a pin hole at the hinging part of the boss 04 and the connecting seat 05; all the left semicircular ring 11 and the right semicircular ring 12 are processed in the combined piece with the matched sizes of the outside, so that the precision is ensured;
s8: after all the dimensions are processed, an end mill is used for milling the welding seam of the triangular area at the upper end, the welding seam of the boss 04 and the welding seam of the lower end face of the connecting seat 05, and a process platform with reserved upper and lower ends is milled, so that the left semicircular ring 11 and the right semicircular ring 12 are separated into single units;
s9: the left semicircular ring 11 and the right semicircular ring 12 are combined into a combined piece, and a hinge pin is assembled at the lower end to finish processing.
The foregoing disclosure is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the scope of the invention, as it is understood by those skilled in the art that all or part of the above-described embodiments may be practiced with equivalents thereof, which fall within the scope of the invention as defined by the appended claims.

Claims (4)

1. A symmetrical semicircular spline connecting sleeve is characterized in that: the sleeve comprises a sleeve body, wherein a square inner hole is formed in the inner wall of the sleeve body, and an outer key groove is formed in the outer circular wall of the sleeve body; the sleeve body comprises a left semicircular ring and a right semicircular ring which are symmetrical with each other; the lower end of the left semicircular ring is hinged with the lower end of the right semicircular ring, and the upper end of the left semicircular ring is attached to the upper end of the right semicircular ring; the lower end of the left semicircular ring is provided with a boss, and a first pin hole is formed in the boss along the axial direction of the left semicircular ring; the lower end of the right semicircular ring is provided with a connecting seat, a second pin hole penetrating through the connecting seat is formed in the connecting seat along the axial direction of the right semicircular ring, a groove allowing the boss to be inserted is formed in the connecting seat, and a pin shaft is sequentially inserted into the first pin hole and the second pin hole, so that the left semicircular ring and the right semicircular ring can be connected; the left semicircular ring and the right semicircular ring are provided with through holes.
2. A process for producing the symmetrical semicircular spline connection sleeve of claim 1, characterized by: comprises the steps of,
s1: forging, namely forging a blank into semicircular single parts, namely a left semicircular ring and a right semicircular ring;
s2: rough machining, namely rough machining is carried out on each side of the part, and each dimension is reserved;
s3: heat treatment, namely performing tempering heat treatment on the parts to ensure that the hardness of the parts meets the specified requirements;
s4: processing a triangular welding area, namely processing the semicircular upper parts of the left semicircular ring and the right semicircular ring, reserving the triangular welding area, and processing the upper parts of the triangular welding area in place;
s5: the method comprises the steps of processing a boss and a connecting seat, processing the lower parts of semicircular arcs of a left semicircular ring and a right semicircular ring, processing the boss at the lower end of the left semicircular ring, processing the connecting seat at the lower end of the right semicircular ring, processing a groove allowing the boss to be inserted in the connecting seat, wherein the lower end surfaces of the boss and the connecting seat are straight surfaces and are reserved;
s6: assembling and welding, namely assembling the left semicircular ring and the right semicircular ring to form a whole circle after assembling the components, wherein the upper end is welded in a triangular area, and the lower end is welded in a welding area of the lower end surfaces of the boss and the connecting seat;
s7: finish machining, namely respectively carrying out finish turning on the outer circle, drilling through holes, milling square inner holes and milling outer key grooves after welding, and finally finish milling pin holes at the hinging positions of the boss and the connecting seat;
s8: separating the left semicircular ring from the right semicircular ring, milling the welding seam of the triangular region at the upper end, the welding seam of the boss and the welding seam at the lower end surface of the connecting seat by using an end mill after all the sizes are processed, milling a process platform with reserved upper and lower ends, and separating the left semicircular ring and the right semicircular ring into single units;
s9: and assembling the left semicircular ring and the right semicircular ring into a combined piece, and assembling a hinge pin shaft at the lower end to finish processing.
3. The method for machining the symmetrical semicircular spline connecting sleeve according to claim 2, wherein the method comprises the following steps of: in the step S3, the hardness should be 280HB to 320HB.
4. A method for machining a symmetrical semicircular spline connecting sleeve according to claim 3, wherein: in step S7, the matched sizes of all the left semicircular ring and the right semicircular ring and the outside are processed in the combined part, so that the precision is ensured.
CN202310530378.1A 2023-05-11 2023-05-11 Symmetrical semicircular spline connecting sleeve and processing method thereof Pending CN116717548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310530378.1A CN116717548A (en) 2023-05-11 2023-05-11 Symmetrical semicircular spline connecting sleeve and processing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310530378.1A CN116717548A (en) 2023-05-11 2023-05-11 Symmetrical semicircular spline connecting sleeve and processing method thereof

Publications (1)

Publication Number Publication Date
CN116717548A true CN116717548A (en) 2023-09-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310530378.1A Pending CN116717548A (en) 2023-05-11 2023-05-11 Symmetrical semicircular spline connecting sleeve and processing method thereof

Country Status (1)

Country Link
CN (1) CN116717548A (en)

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