Phase-adjustable rod and wire connecting shaft

Abstract

The utility model discloses a phase-adjustable rod and wire connecting shaft which comprises a first spline shaft and a second spline shaft, and the end of the first spline shaft and the end of the second spline shaft are detachably connected through a phase adjusting assembly. The phase adjusting assembly comprises a connecting sleeve, the inner side of the connecting sleeve is connected with the end of the first spline shaft through a spline pair, a connecting sleeve flange is arranged at the position, close to the end of the second spline shaft, of the connecting sleeve, and a plurality of kidney-shaped holes are evenly formed in the end face of the connecting sleeve flange along the circumference. A spline shaft flange is arranged at the end, close to the connecting sleeve, of the second spline shaft, a plurality of reamed holes in one-to-one correspondence with the kidney-shaped holes are evenly formed in the end face of the spline shaft flange along the circumference, and the kidney-shaped holes and the reamed holes which correspond to each other are connected and fixed through bolt assemblies. Aiming at the defects in the background technology, the phase of the coupler can be conveniently adjusted, the working efficiency is improved, the service life of a product is prolonged, and the radial size of a phase adjusting structure is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the coupling technical field, concretely relates to a phase adjustable bar wire joint shaft. BACKGROUND

[0002] The phase adjusting assembly of the prior adjustable phase coupling (such as patent number: CN104728283A, name: a novel adjustable phase coupling) is through the cooperation of the expansion sleeve and the pressing plate to clamp the second spline shaft and the connecting sleeve, and the expansion sleeve is composed of an expansion outer ring, an expansion inner ring, left and right tapered rings and a locking screw. When adjusting the phase of the adjustable phase coupling, the locking screw of the expansion sleeve needs to be loosened first, then a bolt is screwed into the auxiliary screw hole to stop the tapered ring, and the tapered ring is loosened by tapping the bolt head. The adjustable phase coupling has the problems of slow phase adjustment speed, low efficiency, large radial size of the phase adjusting structure, and the like. In the process of adjusting the phase, the expansion sleeve cooperates with the tapered surface to slide relatively, and the cooperating tapered surface is prone to wear after multiple adjustments. The longer the expansion sleeve is used, the more prone the tapered surfaces are to rust, which makes the disassembly and assembly very difficult. In addition, the wall thickness of the expansion sleeve is uneven, stress concentration may occur at the edge of the thinner end after the bolt is tightened, which may cause cracks or even breakage of the shaft. SUMMARY

[0003] In view of the defects in the background art, the utility model provides a phase adjustable bar wire joint shaft, which can conveniently adjust the phase of the coupling, improve the work efficiency, prolong the service life of the product, and reduce the radial size of the phase adjusting structure.

[0004] The technical scheme for solving the technical problems of the utility model is as follows:

[0005] According to one aspect of the present application, a phase adjustable bar wire joint shaft is provided, which comprises a first spline shaft and a second spline shaft, and the first spline shaft and the second spline shaft are detachably connected through a phase adjusting assembly between the end portions; the phase adjusting assembly comprises a connecting sleeve connected to the end portion of the first spline shaft through a spline pair on the inner side, the connecting sleeve is provided with a connecting sleeve flange near the end portion of the second spline shaft, the end face of the connecting sleeve flange is uniformly provided with a plurality of waist-shaped holes along the circumference, the end portion of the second spline shaft is provided with a spline shaft flange near the connecting sleeve, the end face of the spline shaft flange is uniformly provided with a plurality of hinge holes corresponding to the waist-shaped holes, and each corresponding waist-shaped hole and hinge hole are connected and fixed through a bolt assembly.

[0006] Further, annular gland is arranged on each bolt assembly.

[0007] Further, the outer side of the connecting sleeve is provided with a hexagonal surface.

[0008] Further, an adjusting hole is formed in each face of the hexagonal surface.

[0009] Further, the first spline shaft is provided with a stopper near the end of the second spline shaft and a snap ring groove is provided at the end of the stopper; the connecting sleeve is provided with a convex circle and a limiting groove at the outer side of the end of the flange of the connecting sleeve; the second spline shaft is provided with a right stopper at the front end of the spline shaft flange; the copper ring is provided between the spline shaft flange and the right stopper; the snap ring groove is provided with a snap ring with a "J" cross section, and the snap ring is connected and fixed with the end face of the connecting sleeve by a connecting screw, and the upper end of the snap ring is matched with the convex circle and the limiting groove and is clamped into the limiting groove.

[0010] Further, the snap ring is composed of two half snap ring units which are semicircular rings.

[0011] Further, the first spline shaft is provided with a roller end assembly and a support assembly at the outer end, and the second spline shaft is provided with a tooth end assembly; the support assembly is provided with an oil injection hole, and the oil injection hole is provided with an oil plug; the first spline shaft is provided with an axial oil hole at the axial center of the inside, the first spline shaft is provided with a first annular groove at the position of the matching surface of the support assembly, a plurality of first axial grooves are provided at the first annular groove, a first radial oil hole is provided at the intersection of each first axial groove and the first annular groove, and a plurality of second radial oil holes are provided at the spline shaft flange connection position of the first spline shaft and the connecting sleeve spline pair.

[0012] Further, the connecting sleeve is provided with a left stopper at the inner side of the convex circle, and a sealing ring is provided between the left stopper and the first spline shaft; the copper ring is provided with a second annular groove along the circumference, a plurality of second axial grooves are provided at the second annular groove, and a second radial groove is provided at both sides of the second axial groove.

[0013] Further, the sealing ring is provided with a rubber pad along the outer side, and a copper pad is provided at both sides of the rubber pad.

[0014] Further, the support assembly includes a bearing which is sleeved on the outside of the first spline shaft, the outer ring of the bearing is provided with a retainer, the left and right sides of the retainer are respectively detachably provided with a left gland and a right gland, the left and right glands are tightly contacted with the outer ring of the bearing, a locking nut is provided between the inner circle of the right gland and the outer circle of the first spline shaft, a plurality of first radial grooves are provided at the front end of the locking nut, the front end of the locking nut is tightly contacted with the inner ring of the bearing, and the other side of the bearing is tightly contacted with the roller end assembly; the oil injection hole is provided on the retainer.

[0015] The utility model provides a phase adjustable bar wire joint axle relative to prior art, its structure design is novel, reasonable, simple, through setting up phase adjustment subassembly, sets up the waist shape hole on the connecting sleeve flange, is convenient for with the hinged hole of second spline shaft flange position adjustment, satisfies the phase adjustment requirement, through setting up the snap ring of split formula J type structure, is convenient for connection and reduces the number of connecting screw, through setting up the hexagonal surface on the connecting sleeve outside and setting up the adjustment hole on every hexagonal surface, the phase adjustment is convenient, through adding the lubricating oil way between the support subassembly and phase adjustment subassembly on the first spline shaft, is convenient for to spline pair meshing place and wear -resisting copper ring addition lubricating oil, through adding the lubricating groove on wear -resisting copper ring, is convenient for the lubricating grease lubrication. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the main body structure diagram of the utility model;

[0017] Figure 2 It is the connecting diagram of roll end subassembly, support subassembly and first spline shaft in the utility model;

[0018] Figure 3 It is the schematic diagram of connecting sleeve in the utility model;

[0019] Figure 4 It is Figure 1 A-A direction schematic diagram in the utility model;

[0020] Figure 5 It is Figure 1 B-B direction schematic diagram in the utility model

[0021] Figure 6 It is Figure 1 C-C direction schematic diagram in the utility model

[0022] Figure 7 It is Figure 1 D-D direction schematic diagram in the utility model

[0023] Figure 8 It is the schematic diagram of the first spline shaft outer circle groove and oil hole setting in the utility model;

[0024] Figure 9 It is the schematic diagram of locking nut in the utility model;

[0025] Figure 10 It is the schematic diagram of wear -resisting copper ring in the utility model;

[0026] Figure 11 It is the schematic diagram of sealing ring in the utility model;

[0027] In the figure: 1, roller end assembly; 2, support assembly; 21, retainer; 22, oil injection hole; 23, oil plug; 24, bearing; 25, locking nut; 251, first radial groove; 26, right gland; 27, left gland; 3, first spline shaft; 31, first radial oil hole; 32, axial oil hole; 33, second radial oil hole; 34, snap ring groove; 351, first annular groove; 352, first axial groove; 4, phase adjustment assembly; 41, connecting sleeve; 411, convex circle; 412, limiting groove; 413, adjustment hole; 414, left stop; 415, right stop; 416, hexagonal surface; 417, connecting sleeve flange; 418, waist-shaped hole; 42, snap ring; 421, half snap ring unit; 43, sealing ring; 431, rubber pad; 432, copper pad; 44, wear-resistant copper ring; 441, second annular groove; 442, second axial groove; 443, second radial groove; 45, gland; 46, connecting screw; 5, second spline shaft; 51, spline shaft flange; 52, hinged hole; 6, tooth end assembly; 7, bolt assembly. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. Unless otherwise defined, the technical terms or scientific terms used herein should be understood as the usual meanings understood by those skilled in the art to which the present application belongs. The "up", "down", "left", "right", "front", "back", "inside", "outside" and the like used in the patent application specification and claims of the present application are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship also changes accordingly. The present application does not detail the known technology of those skilled in the art.

[0029] Embodiment 1:

[0030] As shown in the drawings, the application provides a phase-adjustable rod wire joint shaft, which comprises a first spline shaft 3 and a second spline shaft 5, and the first spline shaft 3 and the second spline shaft 5 are detachably connected through a phase adjustment assembly 4 between the end portions of the first spline shaft 3 and the second spline shaft 5; the phase adjustment assembly 4 comprises a connecting sleeve 41, the inner side of the connecting sleeve 41 is provided with internal splines, the outer side of the end portion of the first spline shaft 3 is provided with external splines, and the connecting sleeve 41 and the first spline shaft 3 are connected through the engagement of the internal splines and the external splines; the connecting sleeve 41 is provided with a connecting sleeve flange 417 at the position close to the end portion of the second spline shaft 5, the end face of the connecting sleeve flange 417 is uniformly provided with a plurality of waist-shaped holes 418 along the circumference, the second spline shaft 5 is provided with a spline shaft flange 51 at the position close to the end portion of the connecting sleeve 41, the end face of the spline shaft flange 51 is uniformly provided with a plurality of hinge holes 52 corresponding to the waist-shaped holes 418 one by one along the circumference, and each corresponding waist-shaped hole 418 and hinge hole 52 are connected and fixed through a bolt assembly 7. When the phase needs to be adjusted, the bolt assembly 7 at each corresponding waist-shaped hole 418 and hinge hole 52 is loosened first, the connecting sleeve 41 is detached from the second spline shaft 5, and then the connecting sleeve 41 is rotated to drive the first spline shaft 3 to rotate, so as to meet the phase adjustment requirement, the phase adjustment speed is fast, and after the adjustment, the bolt assembly 7 can be fastened.

[0031] In order to fix each bolt assembly 7, as a preferred embodiment, each bolt assembly 7 is commonly provided with a ring-shaped gland 45.

[0032] In order to facilitate the rotation of the connecting sleeve 41 during phase adjustment, as a preferred embodiment, the outer side of the connecting sleeve 41 is provided with a hexagonal face 416. As a further preferred embodiment, each face of the hexagonal face 416 is provided with an adjustment hole 413, a rod can be inserted into the adjustment hole 413 to rotate the connecting sleeve 41 in the form of a lever, which facilitates phase adjustment and reduces labor intensity.

[0033] In order to facilitate the setting of the connecting sleeve 41 at the end portion of the first spline shaft 3, as a preferred embodiment, the end portion of the first spline shaft 3 close to the second spline shaft 5 is provided with a stop opening and a snap ring groove 34 is provided in the end portion of the stop opening; the outer side of the end portion of the connecting sleeve 41 away from the connecting sleeve flange 417 is sequentially provided with a convex circle 411 and a limiting groove 412, and the inner side of the end portion of the connecting sleeve 41 at the side of the connecting sleeve flange 417 is provided with a right stop opening 415; the front end of the second spline shaft 5 protrudes the spline shaft flange 51 and extends into the right stop opening 415, and a wear-resistant copper ring 44 for support is arranged between the two; a snap ring 42 with a “J”-shaped cross section is arranged in the snap ring groove 34, the snap ring 42 is connected and fixed with the end face of the connecting sleeve 41 through a connecting screw 46, and the upper end portion of the snap ring 42 is respectively matched with the convex circle 411 and the limiting groove 412 and clamped into the limiting groove 412. As a further preferred embodiment, the snap ring 42 is composed of two half snap ring units 421 which are integrally formed in the shape of a half circle ring, which can reduce the number of connecting screws 46 of the snap ring 42 and the end face of the connecting sleeve 41, and improve the installation efficiency.

[0034] Embodiment 2:

[0035] In order to improve the lubrication between the parts of the shaft, on the basis of Embodiment 1, the application provides a phase-adjustable bar wire shaft, the outer end of the first spline shaft 3 is provided with a roller end assembly 1 and a support assembly 2, and the second spline shaft 5 is provided with a tooth end assembly 6; the support assembly 2 is provided with an oil injection hole 22, and the oil injection hole 22 is provided with an oil plug 23; an axial oil hole 32 is formed at the inner axial center of the first spline shaft 3, a first annular groove 351 is arranged at the position of the mating surface of the outer circle of the first spline shaft 3 and the support assembly 2, a plurality of first axial grooves 352 are arranged at the first annular groove 351 along the circumference, a first radial oil hole 31 is formed at the intersection position of each first axial groove 352 and the first annular groove 351 and penetrates the axial oil hole 32, and a plurality of second radial oil holes 33 are arranged at the position of the spline pair connection of the first spline shaft 3 and the connecting sleeve 41 along the circumference and penetrate the axial oil hole 32. The lubricating oil path is formed through the oil injection hole 22, the first annular groove 351, the first axial groove 352, the first radial oil hole 31, the axial oil hole 32, and the second radial oil hole 33, the oil plug 23 is opened, and the lubricating oil can be added, the lubricating oil can reach the spline meshing position through the lubricating oil path, and the effect of reducing spline wear and heat dissipation is achieved.

[0036] In order to further improve the lubrication, heat dissipation and sealing effect of the shaft, as a preferred embodiment, the connecting sleeve 41 is provided with a left stop 414 on the inner side of one end of the convex circle 411, and a sealing ring 43 is arranged between the left stop 414 and the first spline shaft 3; the wear-resistant copper ring 44 is provided with a second annular groove 441 along the circumference, a plurality of second axial grooves 442 are arranged at the second annular groove 441 along the circumference, and a second radial groove 443 is arranged at both sides of the second axial groove 442. Before assembly, the grooves of the wear-resistant copper ring 44 can be coated with lubricating oil to reduce the wear of the copper ring, and when the lubricating oil is reduced, the lubricating oil at the spline meshing position can be supplemented through the lubricating oil path.

[0037] In order to improve the stability and sealing performance of the sealing ring, the outer edge of the sealing ring 43 is provided with a rubber pad 431, and the two sides of the rubber pad 431 are respectively provided with a copper pad 432. The copper pad and the rubber pad can be firmly bonded with Loctite glue and then processed together to have an inner spline consistent with the inner spline of the connecting sleeve.

[0038] In order to facilitate the arrangement of the support assembly, as a preferred embodiment, the support assembly 2 comprises a gap sleeve bearing 24 arranged outside the first spline shaft 3, an outer ring of the bearing 24 is provided with a retainer 21, the left and right sides of the retainer 21 are respectively detachably provided with a left gland 27 and a right gland 26, the left gland 27 and the right gland 26 are tightly arranged with the outer ring of the bearing 24, an inner circle of the right gland 26 is arranged between an outer circle of the first spline shaft 3, a locking nut 25 is arranged between the inner circle of the right gland 26 and the outer circle of the first spline shaft 3, a plurality of first radial grooves 251 are formed in the front end of the locking nut 25, the front end of the locking nut 25 is tightly arranged with the inner ring of the bearing 24, the other side of the bearing 24 is tightly arranged with the roller end assembly 1; an oil injection hole 22 is formed in the retainer 21. When the lubricating grease is added, the lubricating grease can be transported from the oil injection hole 22 to the bearing 24 for lubrication, and then enters each groove on the outer circle of the first spline shaft 3 through the radial grooves of the bearing 24 and the locking nut 25, and then enters the lubricating oil path on the first spline shaft to the spline meshing position for lubrication and heat dissipation.

Claims

1. A phase-adjustable rod wire union comprising a first spline shaft (3) and a second spline shaft (5), characterized in that, The first spline shaft (3) and the second spline shaft (5) are detachably connected through the phase adjusting assembly (4); the phase adjusting assembly (4) comprises a connecting sleeve (41) connected with the end of the first spline shaft (3) through an inner spline pair, the connecting sleeve (41) is provided with a connecting sleeve flange (417) near the end of the second spline shaft (5), the end surface of the connecting sleeve flange (417) is uniformly provided with a plurality of waist-shaped holes (418) along the circumference, the second spline shaft (5) is provided with a spline shaft flange (51) near the end of the connecting sleeve (41), the end surface of the spline shaft flange (51) is uniformly provided with a plurality of hinge holes (52) corresponding to the waist-shaped holes (418) one by one, and each corresponding waist-shaped hole (418) and hinge hole (52) are connected and fixed through a bolt assembly (7).

2. A phase adjustable bar wire union according to claim 1, characterized in that Each bolt assembly (7) is provided with a ring-shaped gland (45).

3. A phase adjustable rod wire hub as defined in claim 1, wherein, The outer side of the connecting sleeve (41) is provided with a hexagonal surface (416).

4. A phase adjustable bar wire union according to claim 3, characterized in that An adjusting hole (413) is formed on each surface of the hexagonal surface (416).

5. A phase adjustable bar wire union according to any one of claims 1-4, characterized in that, The end of the first spline shaft (3) near the second spline shaft (5) is provided with a stop opening and a snap ring groove (34) in the stop opening; the outer side of the end of the connecting sleeve (41) away from the connecting sleeve flange (417) is sequentially provided with a convex circle (411) and a limiting groove (412), and the inner side of the end of the connecting sleeve (41) on the side of the connecting sleeve flange (417) is provided with a right stop opening (415); the front end of the second spline shaft (5) protrudes from the spline shaft flange (51) and extends into the right stop opening (415), and a wear-resistant copper ring (44) is arranged therebetween; the snap ring groove (34) is provided with a snap ring (42) with a "J" type cross section, the snap ring (42) is connected and fixed with the end surface of the connecting sleeve (41) through a connecting screw (46), and the upper end portions thereof are respectively matched with the convex circle (411) and the limiting groove (412) and are clamped into the limiting groove (412).

6. A phase adjustable bar wire union according to claim 5, characterized in that The snap ring (42) is composed of two half snap ring units (421) which are integrally formed in a semicircular ring shape.

7. A phase adjustable bar wire union according to claim 5, characterized in that The first spline shaft (3) is provided with a roller end assembly (1) and a support assembly (2) at the outer end, and the second spline shaft (5) is provided with a tooth end assembly (6); the support assembly (2) is provided with an oil injection hole (22), and the oil injection hole (22) is provided with an oil plug (23); an axial oil hole (32) is formed at the inner axial center of the first spline shaft (3), a first annular groove (351) is arranged at the position of the mating surface of the outer circle of the first spline shaft (3) and the support assembly (2), a plurality of first axial grooves (352) are arranged at the position of the first annular groove (351) along the circumference, a first radial oil hole (31) penetrating the axial oil hole (32) is formed at the position of each first axial groove (352) intersecting with the first annular groove (351), and a plurality of second radial oil holes (33) penetrating the axial oil hole (32) are arranged along the circumference at the position of the spline pair connection between the first spline shaft (3) and the connecting sleeve (41).

8. A phase adjustable bar wire union according to claim 7, characterized in that The connecting sleeve (41) is provided with a left stop port (414) at the inner side of one end of the convex circle (411), and a sealing ring (43) is arranged between the left stop port (414) and the first spline shaft (3); the wear-resistant copper ring (44) is provided with a second annular groove (441) along the circumference, and a plurality of second axial grooves (442) are arranged at the position of the second annular groove (441) along the circumference, and a second radial groove (443) is formed at the two sides of the second axial groove (442), respectively.

9. A phase adjustable bar wire union according to claim 8, characterized in that The sealing ring (43) is provided with a rubber pad (431) along the outer side, and the rubber pad (431) is provided with a copper pad (432) at the two sides, respectively.

10. A phase adjustable bar wire union according to claim 7, characterized in that The support assembly (2) comprises a bearing (24) sleeved outside the first spline shaft (3), the outer ring of the bearing (24) is provided with a retainer (21), the left and right sides of the retainer (21) are respectively detachably provided with a left gland (27) and a right gland (26), the left gland (27) and the right gland (26) abut against the outer ring of the bearing (24), a locking nut (25) is arranged between the inner circle of the right gland (26) and the outer circle of the first spline shaft (3), a plurality of first radial grooves (251) are formed at the front end of the locking nut (25), the front end of the locking nut (25) abuts against the inner ring of the bearing (24), and the other side of the bearing (24) abuts against the roller end assembly (1); the oil injection hole (22) is formed in the retainer (21).

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