Water pipe vertical support structure and flexible coupling

Abstract

The utility model discloses a kind of water pipe vertical support structure and flexible coupling, belong to coupling technical field, be arranged in flexible coupling, including fixed on flange plate water pipe joint, water pipe both ends in interval body are respectively arranged on corresponding water pipe joint;Its characterized in that, water pipe joint is provided with shaft end limit piece, the shaft end limit piece is locked on water pipe joint by shaft sleeve;The contact surface between one of water pipe joint and the shaft end limit piece is spherical surface contact. Through the spherical surface contact form between water pipe joint and shaft end limit piece, such design is to let vertical support not only only by vertical gravity due to self-weight, but also can bear the force of slight left and right swing when coupling operation, so that diaphragm group stress reduction, and can protect diaphragm group from excessive deformation, to prolong the service life of diaphragm group.

Description

Technical Field

[0001] This utility model belongs to the field of coupling technology, and relates to a novel central water pipe vertical support structure and flexible coupling. Background Technology

[0002] In high-speed spindle systems, the machining accuracy and operational reliability of machine tools are highly dependent on the synergistic performance of various components, and flexible couplings, as the "flexible joints" within them, play a crucial role.

[0003] The flexible coupling contains a water pipe at its center, which is fixed to the water pipe joints at both ends. However, during use, the water pipe joints not only bear the vertical force generated by their own weight, but also experience complex stress due to the slight lateral swaying force generated during coupling operation. This complex stress situation further increases the stress on the diaphragm assembly, causing it to deform due to excessive stress, severely affecting the service life of the diaphragm assembly, and consequently affecting the performance and stability of the flexible coupling and even the entire high-speed spindle system. Utility Model Content

[0004] The purpose of this invention is to provide a vertical support structure for water pipes and a flexible coupling, which reduces the stress on the diaphragm assembly and extends its service life through structural improvements.

[0005] The objective of this utility model is achieved through the following technical solution: A vertical support structure for a water pipe is provided inside a flexible coupling, including a water pipe joint fixed on a flange, and two ends of a water pipe located in the spacer body respectively provided on corresponding water pipe joints; the water pipe joint is provided with a shaft end limiting member, and the shaft end limiting member is locked to the water pipe joint by a bushing; one of the contact surfaces between the water pipe joint and the shaft end limiting member is a spherical contact.

[0006] As a further improvement of one embodiment of the present utility model, the shaft end limiting member is a ring structure, and the inner diameter of the shaft end limiting member is larger than the inner diameter of the water pipe joint and smaller than the outer diameter of the water pipe joint, so that the shaft end limiting member is pressed onto the water pipe joint.

[0007] As a further improvement of one embodiment of the present utility model, one end of the water pipe connector with spherical contact is a spherical protrusion, and a corresponding spherical groove is provided on the shaft end limiting member, and the spherical protrusion is in contact with the spherical groove surface.

[0008] As a further improvement of one embodiment of the present utility model, the bushing has an annular notch that presses against the periphery of the shaft end limiting member. The annular notch is a right-angled trapezoid, and the side with the right angle is in close contact with the side wall of the shaft end limiting member. The upper bottom part is pressed against the upper end of the shaft end limiting member, and the tolerance fit between the inner diameter of the annular notch and the outer diameter of the corresponding part of the shaft end limiting member is H7 / g6.

[0009] As a further improvement of one embodiment of the present utility model, the water pipe connector is provided with a groove for inserting one end of the water supply pipe. An annular groove is provided on the inner side wall of the groove. A clamp and a sealing ring are provided in the annular groove. The water pipe is inserted into the groove and the pipe wall of the water pipe contacts the clamp and the sealing ring to realize the connection between the water pipe and the water pipe connector.

[0010] As a further improvement of one embodiment of the present invention, a plurality of water pipe support frames are provided at intervals within the spacer body, and the water pipes pass through the channels defined by the water pipe support frames.

[0011] A flexible coupling includes a spacer and flanges disposed at both ends of the spacer. The outer side of the flange is connected to a corresponding bushing by bolts, and a diaphragm assembly is provided between the bushing and the flange. The water pipe connector is fixed to the flange by bolts. A water pipe connected to the water pipe connector is disposed in the spacer. The spacer adopts the above-mentioned vertical support structure for the water pipe on one side.

[0012] As a further improvement of one embodiment of the present invention, at least four positioning holes are symmetrically arranged around the central hole on the diaphragm assembly. Positioning sleeves are provided on the positioning holes with interference fit. One end of the positioning sleeve has a frustum structure, and the frustum structures of the positioning sleeves are staggered on both sides of the diaphragm assembly.

[0013] As a further improvement of one embodiment of the present invention, the two sides of the diaphragm assembly are respectively the first side and the second side, the frustum structure is the first boss on the first side and the frustum structure is the second boss on the second side; the two ends of the positioning sleeve are fixed by positioning rings, and the first boss and the second boss are both exposed outside the corresponding positioning rings.

[0014] As a further improvement of one embodiment of the present utility model, the bushing is provided with a first groove for the first boss to be inserted and a second groove for the positioning ring to be placed, wherein the first groove is a frustum structure adapted to the first boss; the flange is provided with a third groove for the second boss to be inserted and a fourth groove for the positioning ring to be placed, wherein the third groove is a frustum structure adapted to the second boss.

[0015] The above technical solution has the following beneficial effects: By using a spherical contact between the water pipe joint and the shaft end limiting component, this design ensures that the vertical support is not only subjected to the vertical gravity generated by its own weight, but also to the slight left-right swaying force generated when the coupling is running. This reduces the stress on the diaphragm assembly and protects the diaphragm assembly from excessive deformation, thereby extending the service life of the diaphragm assembly. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. shown in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a three-dimensional schematic diagram of the flexible coupling provided by this utility model.

[0019] Figure 2 This is a front view schematic diagram of the flexible coupling provided by this utility model.

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of region A in the middle.

[0021] Figure 4 for Figure 2 A cross-sectional view along the AA direction.

[0022] Figure 5 This is a partial cross-sectional view of one end of the flexible coupling provided by this utility model.

[0023] Figure 6 A three-dimensional schematic diagram of the spherical contact shaft end limiting component provided by this utility model.

[0024] Figure 7 A three-dimensional schematic diagram of a water pipe connector with spherical contact provided by this utility model.

[0025] Figure 8 This is a three-dimensional schematic diagram of the diaphragm assembly provided by this utility model.

[0026] Figure 9 A three-dimensional schematic diagram of the flange provided for this utility model.

[0027] Figure 10 A three-dimensional schematic diagram of the bushing provided by this utility model.

[0028] In the picture: 1. Spacer; 2. Flange; 21. Third groove; 22. Fourth groove; 3. Bushing; 31. First groove; 32. Second groove; 4. Diaphragm assembly; 41. Positioning sleeve; 411. Frustum structure; 42. Positioning ring; 5. Water pipe joint; 51. Spherical protrusion; 6. Water pipes; 7. Outer ring; 8. Shaft end limiting component; 81. Spherical groove; 9. Water pipe support frame. Detailed Implementation

[0029] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] First embodiment, such as Figures 1-5 As shown, a flexible coupling mainly consists of a spacer 1, a flange 2, a bushing 3, a diaphragm assembly 4, a water pipe connector 5, a water pipe 6, an outer ring 7, and a shaft end limiting component 8.

[0031] The spacer 1 serves as the core support component, with flanges 2 installed at both ends. The flanges 2 are securely connected to the corresponding bushings 3 by bolts, and a diaphragm assembly 4 is installed between the bushings 3 and the flanges 2. The diaphragm assembly 4 can be made of stacked metal sheets or made of elastic polymer materials. Its function is to compensate for the relative displacement between the two shafts, buffer and dampen vibrations, and ensure smooth power transmission.

[0032] An outer ring 7 is fitted onto the bushing 3, and the outer ring 7 is tightly locked onto the bushing 3 with bolts. The outer ring 7 not only enhances the structural strength of the bushing 3, but also provides a certain degree of protection. The water pipe joint 5 is firmly locked onto the flange 2 with bolts. A water pipe 6 connected to the water pipe joint 5 is provided inside the spacer 1 for transporting media such as coolant.

[0033] A shaft end limiting member 8 is provided on the water pipe connector 5, and the shaft end limiting member 8 is locked to the water pipe connector 5 by a bushing 3. The contact surface between the shaft end limiting member and the water pipe connector at one end is designed as a spherical contact. This spherical contact structure can be achieved not only by using the common spherical protrusion and spherical groove mating form, but also by machining an arc-shaped curved surface on the contact surface. The shaft end limiting member and the water pipe connector at the other end use a conventional planar contact.

[0034] By employing a spherical contact between the water pipe connector and the shaft end limiting component, the vertical support not only bears the vertical gravity generated by its own weight but also the slight lateral swaying force generated during coupling operation. When the coupling generates swaying force during operation, the spherical contact allows for a certain angle of relative rotation between the shaft end limiting component and the water pipe connector, thereby dispersing some of the swaying force, effectively reducing the force on the diaphragm assembly 4, preventing deformation of the diaphragm assembly 4 due to excessive force, and thus extending the service life of the diaphragm assembly 4, improving the operational reliability and stability of the entire flexible coupling.

[0035] This solution names the combination of the shaft end limiting component 8 and the water pipe connector 5 as the water pipe vertical support structure, which is specifically used for the installation of the water pipe 6 to provide stable support for the water pipe and ensure its normal operation.

[0036] The installation method for water pipe 6 and water pipe connector 5 is as follows: Water pipe connector 5 has a pre-drilled groove for inserting one end of the water supply pipe. In this design, the groove is cylindrical (the groove structure can be designed according to actual needs). An annular groove is provided on the inner wall of the groove, and a clamp and a sealing ring are installed within the annular groove. The clamp can be made of metal to provide sufficient clamping force; the sealing ring can be made of rubber to ensure good sealing performance. When one end of the water pipe is inserted into the groove, the wall of the water pipe 6 will fully contact and compress with the clamp and sealing ring. The tightening action of the clamp fixes the water pipe, while the sealing ring prevents leakage of coolant and other media, thus achieving a reliable and sealed connection between the water pipe and water pipe connector 5.

[0037] To improve the stability of the water pipe 6 within the spacer 1, several water pipe support frames 9 are spaced apart within the spacer 1 to position and support the water pipe 6. These water pipe support frames 9 are bolted to the spacer and have channels through which the water pipe 6 passes.

[0038] Combination Figure 6 As shown, the shaft end limiting member 8 adopts a ring structure. The inner diameter of the shaft end limiting member 8 is designed to be larger than the inner diameter of the water pipe joint 5 and smaller than the outer diameter of the water pipe joint 5, so as to ensure that the shaft end limiting member 8 is firmly pressed onto the water pipe joint 5, and to achieve reliable connection and positioning.

[0039] like Figure 7As shown, one end of the water pipe connector 5, which uses spherical contact, is configured with a spherical protrusion 51, and a corresponding spherical groove 81 is provided on the shaft end limiting member 8. The spherical protrusion 51 and the spherical groove 81 achieve surface contact. Compared with point contact or line contact, this surface contact method can better distribute the force, making the relative movement between the shaft end limiting member 8 and the water pipe connector 5 more stable, effectively reducing local wear, and improving the reliability and service life of the entire water pipe vertical support structure.

[0040] In this design, the bushing 3 has an annular notch that presses against the periphery of the shaft end limiting member 8. The annular notch is a right-angled trapezoid, with its right-angled side tightly fitting against the side wall of the shaft end limiting member 8. The upper bottom part is pressed against the upper end of the shaft end limiting member 8. The tolerance between the inner diameter of the annular notch and the outer diameter of the corresponding part of the shaft end limiting member 8 is H7 / g6 (clearance fit), so as to achieve precise positioning of the shaft end limiting member 8 from the top and side wall, ensuring the stable installation position of the shaft end limiting member on the water pipe joint.

[0041] To improve the overall concentricity of the flexible coupling, such as Figure 8 As shown, six positioning holes are symmetrically arranged around the central hole on the diaphragm assembly 4 (at least four are required in practical applications; six provide better positioning effect and stability). The positioning holes in this design are circular. Positioning sleeves 41 are fitted onto the positioning holes with an interference fit. This interference fit ensures that the positioning sleeves 41 are tightly connected to the diaphragm assembly 4 and are not easily loosened.

[0042] One end of the positioning sleeve 41 is designed as a frustum structure 411, and multiple positioning sleeves with frustum structures 411 are staggered on both sides of the diaphragm assembly 4. Specifically, the two sides of the diaphragm assembly 4 are defined as the first side and the second side, respectively. When the frustum structure is on the first side, it is called the first boss, and when it is on the second side, it is called the second boss.

[0043] Both ends of the positioning sleeve are fixed by positioning rings 42, which can be made of metal to ensure sufficient strength and stability. Furthermore, both the first and second bosses are exposed outside the corresponding positioning rings. This design allows the first and second bosses to assist in positioning and balance forces during coupling assembly and operation, ensuring the concentricity of the diaphragm assembly 4.

[0044] Combination Figure 9 As shown, the flange 2 is provided with a third groove 21 for the second boss to be inserted and a fourth groove 22 for the positioning ring to be placed. The third groove 21 is a frustum structure adapted to the second boss, improving the positioning accuracy of the diaphragm assembly 4 installed on the flange 2. The depth and width of the fourth groove 22 are precisely calculated to ensure that it can stably accommodate the positioning ring, and its edges can be chamfered to prevent scratching the positioning ring.

[0045] Combination Figure 10 As shown, the bushing 3 is provided with a first groove 31 for the first boss to be inserted and a second groove 32 for the positioning ring to be placed. The first groove 31 is also a frustum structure adapted to the first boss. The size of the second groove 32 matches the positioning ring to ensure that the positioning ring is placed stably.

[0046] Through the ingenious cooperation between the diaphragm assembly 4, flange 2, and bushing 3, once the three are secured with bolts, the precise fit between the bosses and grooves greatly ensures the concentricity of the three components. This design makes the relative positions of the components more stable during operation, reducing vibration and wear caused by concentricity deviations, and effectively improving the operating accuracy and service life of the coupling.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vertical support structure for a water pipe, disposed within a flexible coupling, comprising a water pipe joint fixed to a flange, wherein both ends of a water pipe located within a spacer are respectively disposed on corresponding water pipe joints; characterized in that, The water pipe connector is provided with a shaft end limiting member, which is locked to the water pipe connector by a bushing; one of the contact surfaces between the water pipe connector and the shaft end limiting member is a spherical contact.

2. The vertical support structure for water pipes according to claim 1, characterized in that, The shaft end limiting component is a ring structure. The inner diameter of the shaft end limiting component is larger than the inner diameter of the water pipe joint and smaller than the outer diameter of the water pipe joint, so that the shaft end limiting component is pressed onto the water pipe joint.

3. The vertical support structure for water pipes according to claim 1, characterized in that, The water pipe connector with spherical contact has a spherical protrusion at one end, and a corresponding spherical groove is provided on the shaft end limiting member, with the spherical protrusion in contact with the spherical groove surface.

4. The vertical support structure for water pipes according to claim 1, characterized in that, The bushing has an annular notch that presses against the periphery of the shaft end limiting member. The annular notch is a right-angled trapezoid, with its right-angled side tightly fitting against the side wall of the shaft end limiting member. The upper bottom part is pressed against the upper end of the shaft end limiting member, and the tolerance fit between the inner diameter of the annular notch and the outer diameter of the corresponding part of the shaft end limiting member is H7 / g6.

5. The vertical support structure for water pipes according to claim 1, characterized in that, The water pipe connector is provided with a slot for inserting one end of the water supply pipe. An annular groove is provided on the inner side wall of the slot. A clamp and a sealing ring are provided in the annular groove. The water pipe is inserted into the slot and the pipe wall of the water pipe contacts the clamp and the sealing ring to achieve the connection between the water pipe and the water pipe connector.

6. The vertical support structure for water pipes according to claim 1, characterized in that, The spacer body is provided with several water pipe support frames at intervals, and the water pipes pass through the channels defined by the water pipe support frames.

7. A flexible coupling, comprising a spacer and flanges disposed at both ends of the spacer, wherein the outer sides of the flanges are connected to corresponding bushings by bolts, and a diaphragm assembly is provided between the bushings and the flanges, characterized in that, The water pipe joint is bolted to the flange, and a water pipe connected to the water pipe joint is provided in the spacer body; one side of the spacer body adopts a water pipe vertical support structure according to any one of claims 1-6.

8. The flexible coupling according to claim 7, characterized in that, The diaphragm assembly has at least four positioning holes symmetrically arranged around the central hole in the circumferential direction. Positioning sleeves are provided on the positioning holes with an interference fit. One end of the positioning sleeve has a frustum structure, and the frustum structures of the positioning sleeves are staggered on both sides of the diaphragm assembly.

9. The flexible coupling according to claim 8, characterized in that, The two sides of the diaphragm assembly are the first side and the second side, respectively. The frustum structure is the first boss when it is on the first side and the frustum structure is the second boss when it is on the second side. The two ends of the positioning sleeve are fixed by positioning rings, and the first boss and the second boss are both exposed outside the corresponding positioning rings.

10. The flexible coupling according to claim 9, characterized in that, The bushing is provided with a first groove for the first boss to be inserted and a second groove for the positioning ring to be placed. The first groove is a frustum structure adapted to the first boss. The flange is provided with a third groove for the second boss to be inserted and a fourth groove for the positioning ring to be placed. The third groove is a frustum structure adapted to the second boss.

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