A method and system for assembling a spatial angle cardan shaft

Abstract

The application discloses a kind of spatial angle universal shaft's assembly method and assembly system, belong to universal shaft production equipment technical field.The method includes the following steps: making assembly system, using assembly system by two ends fixed and clamping universal shaft, by external hoisting equipment, universal shaft is hoisted to working height, then force is applied to the universal shaft along X direction movement, realize universal shaft close or away from mounting surface;Force is applied to the universal shaft so that universal shaft moves in Z direction;Force is applied to the universal shaft so that universal shaft moves in Y direction.Through control universal shaft in XYZ three directions movement, realize the accurate positioning of universal shaft installation structure size, can effectively improve installation precision, reduce because manual operation or the precision limit of simple mechanical equipment leads to installation error.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of universal shaft production equipment, more specifically, relates to a spatial angle universal shaft assembly method and assembly system. BACKGROUND

[0002] Universal shaft is a common mechanical component, widely used in various mechanical equipment, used for power transmission and movement. However, the installation process of universal shaft is often complex, especially horizontal or inclined universal shaft, which needs accurate positioning and adjustment to ensure its normal work. In the field of automation equipment, with the development of technology, automation equipment is more and more widely used, which also includes the installation of universal shaft. However, due to the complex structure of universal shaft, the installation is difficult, which affects the efficiency and accuracy of automation equipment in installing universal shaft. In the field of precision positioning technology, although there are some precision positioning devices that can assist the installation of universal shaft, the cost of these devices is high, and the operation is complex, which is not conducive to large-scale application. For example, Chinese patent CN117754271A discloses a kind of assembly auxiliary tool for universal coupling production.

[0003] The current solution is mainly through manual or simple tools such as belt rope, iron chain, or mechanical equipment to install universal shaft. Although manual installation can ensure a certain accuracy, it is low in efficiency and needs a lot of human resources. While simple mechanical equipment can improve the installation efficiency, but its positioning accuracy is not high, which may lead to unstable installation quality of universal shaft.

[0004] However, the current spatial angle universal shaft installation technology has the following main problems: 1) low automation, most of the work still needs to be completed manually, which not only consumes time and effort, but also is low in efficiency; 2) low installation accuracy, due to the precision limitation of manual operation or simple mechanical equipment, the installation accuracy of universal shaft cannot be guaranteed, which may affect the normal operation of mechanical equipment; 3) inconvenient installation, whether manual installation or mechanical equipment installation, accurate positioning and adjustment of universal shaft are needed, which is often difficult in actual operation, increasing the difficulty of installation. SUMMARY

[0005] 1. Problem to be solved

[0006] In response to the technical problems existing in the prior art, the present invention provides an assembly method for a spatial angle universal joint, which can at least solve the following problems: 1) Assembly is completed manually, which is time-consuming, labor-intensive, and inefficient; 2) Due to the precision limitations of manual operation or simple mechanical equipment, the installation accuracy of the universal joint cannot be guaranteed, and the installation accuracy is not high, which may affect the normal operation of the mechanical equipment; 3) Whether it is manual installation or mechanical equipment installation, the universal joint needs to be accurately positioned and adjusted, which is often difficult in actual operation, increasing the difficulty of installation.

[0007] Another object of the present invention is to provide an assembly system used in the above-mentioned assembly method.

[0008] 2. Technical solution

[0009] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0010] The first aspect of the present invention provides a method for assembling a space angle universal joint shaft, wherein the space angle is 0-15 °, the method comprises the following steps:

[0011] An assembly system is manufactured, wherein the assembly system is used to fix and clamp the universal joint shaft at both ends, the universal joint shaft is hoisted to a working height by an external hoisting device, and then a force is applied to the universal joint shaft to move in the X direction to move the universal joint shaft closer to or away from the mounting surface;

[0012] Applying force to the universal joint shaft to cause the universal joint shaft to move in the Z direction;

[0013] And applying force to the universal joint shaft makes the universal joint shaft move in the Y direction.

[0014] The above steps of moving along the X direction, moving along the Y direction, and moving along the Z direction can be exchanged in order without affecting the assembly of the universal joint.

[0015] A second aspect of the present invention provides an assembly system for use with the assembly method of the first aspect, comprising: a hanger assembly for connecting to an external hanging device; the hanger assembly comprising a first hanger, a second hanger, a third hanger, a fourth hanger, and a fifth hanger, wherein the second hanger and the fourth hanger are respectively slidably mounted on the first hanger, the third hanger is slidably mounted on the second hanger, and the fifth hanger is slidably mounted on the fourth hanger.

[0016] And a clamp component for clamping the universal shaft, the clamp component includes a first clamp and a second clamp, the first clamp is installed on the third hanger, and the second clamp is installed on the fifth hanger.

[0017] According to any embodiment of the second aspect of the present application, the first bracket is in the shape of a "day" character, and the first motor, the second motor, the first screw rod and the second screw rod are symmetrically mounted on the first bracket, and the first motor drives the first screw rod and the second motor drives the second screw rod to rotate; the second bracket and the fourth bracket are slidably connected to the first bracket through the slide rail, and the second bracket and the fourth bracket are driven to move horizontally, and the distance between the second bracket and the fourth bracket is adjusted to adapt to the universal shafts of different lengths.

[0018] According to any embodiment of the second aspect of the present application, the second bracket and the fourth bracket are in the shape of a "J" character, and the third motor, the fourth motor, the third screw rod and the fourth screw rod are symmetrically mounted on the fourth bracket, and the third motor drives the third screw rod and the fourth motor drives the fourth screw rod to rotate, and the third bracket and the fifth bracket are driven to move vertically, wherein the third bracket is slidably connected to the second bracket through the slide rail.

[0019] According to any embodiment of the second aspect of the present application, the third bracket and the fifth bracket are in the shape of a "day" character, and the fifth motor and the fifth screw rod are mounted on the fifth bracket, and the fifth motor drives the fifth screw rod to rotate, and the first clamp is driven to move horizontally, wherein the first clamp is slidably connected to the fifth bracket through the slide rail.

[0020] According to any embodiment of the second aspect of the present application, the first clamp and the second clamp are in the same structure, and the second clamp comprises a first clamp, a second clamp, a hydraulic cylinder, a second screw rod group, a second screw motor group and a connecting frame, the first clamp, the second clamp and the hydraulic cylinder are arranged on the connecting frame, the first clamp and the second clamp are opened and closed through the extension and contraction of the hydraulic cylinder, the second screw rod group and the second screw motor group driving the screw rod are mounted on the first clamp and / or the second clamp, and the screw rod is driven to move horizontally by the motor to adjust the position of the flange of the universal shaft.

[0021] The first clamp and the second clamp can firmly fix the universal shaft, so that the universal shaft will not move or deviate during installation, thereby improving the installation precision and efficiency.

[0022] According to any embodiment of the second aspect of the present application, the first clamp and / or the second clamp is further provided with a movable clamp group for fixing the universal shaft body.

[0023] According to any embodiment of the second aspect of the present application, the six screw rod heads of the second screw rod group are provided with rubber heads, and when the screw rod moves to contact the flange end surface of the universal shaft, the flange can continue to move while the friction is reduced, thereby realizing the horizontal and vertical micro-adjustment of the position of the flange.​

[0024] According to any embodiment of the second aspect of the present application, the movable caliper set is connected to the corresponding caliper through a ball hinge, so that the system of the present application can be assembled and used for universal shafts of different models, different lengths and different weights.

[0025] According to any embodiment of the second aspect of the present application, a through hole is formed in the first hanger, which can reduce the weight of the first hanger and facilitate oiling of the first and second lead screws through the through hole.

[0026] 3. Advantages

[0027] Compared with the prior art, the present application has the following advantages:

[0028] (1) The assembly method of the spatial angle universal shaft of the present application can accurately position the installation structure size of the universal shaft by controlling the movement of the universal shaft in XYZ directions, which can effectively improve the installation accuracy and reduce the installation errors caused by manual operation or the precision limitation of simple mechanical equipment.

[0029] (2) The assembly method of the spatial angle universal shaft of the present application optimizes the entire installation process, making the installation process more smooth, further improving the installation efficiency and accuracy, and effectively solving the problems of low automation level, inconvenience in installation, time-consuming and labor-intensive, and low precision in the installation process of horizontal or inclined universal shafts.

[0030] (3) The assembly system of the spatial angle universal shaft of the present application, wherein the clamp can firmly fix the universal shaft, so that it will not move or deviate during installation, thereby improving the installation accuracy and efficiency.

[0031] (4) The assembly system of the spatial angle universal shaft of the present application automates the entire installation process, accurately controls the movement of the universal shaft through motors and other equipment, greatly reduces the need for manual operation, improves the installation efficiency, and reduces the labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0032] The technical solutions of the present application will be further described in detail below in combination with the drawings and examples, but it should be noted that these drawings are designed only for illustrative purposes, and therefore do not limit the scope of the present application. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural configuration described herein, and are not necessarily drawn to scale.

[0033] Figure 1 The structure of the assembly system provided in the embodiments of the present application is shown in the figure;

[0034] Figure 2A front view of the assembly system provided in the embodiment of the present application;

[0035] Figure 3 A side view of the assembly system provided in the embodiment of the present application;

[0036] Figure 4 A Figure 1 enlarged view of A part of

[0037] Figure 5 An enlarged view of B part of Figure 2

[0038] BRIEF DESCRIPTION OF DRAWINGS

[0039] 1, first hanger; 11, first screw rod; 12, second screw rod; 13, first motor; 14, second motor; 15, through hole;

[0040] 2, second hanger;

[0041] 3, third hanger;

[0042] 4, first clamp; 41, first screw rod group; 42, first screw rod motor group;

[0043] 5, fourth hanger; 51, third motor; 52, third screw rod; 53, fourth motor; 54, fourth screw rod;

[0044] 6, fifth hanger; 61, fifth motor; 62, fifth screw rod;

[0045] 7, second clamp; 71, second screw rod group; 72, second screw rod motor group; 73, connecting frame; 74, hydraulic cylinder; 75, first clamp; 76, second clamp; 77, movable clamp group; 78, rubber head. DETAILED DESCRIPTION

[0046] The following detailed description of example embodiments of the application references the accompanying drawings, which form a part of the description. The description is made in the context of example embodiments of the application as illustrated by way of example in the drawings. While these example embodiments are described in sufficient detail to enable those skilled in the art to practice the application, it should be understood that other embodiments can be realized and that various changes can be made to the embodiments described herein without departing from the spirit and scope of the application. The following detailed description of embodiments of the application is not intended to limit the scope of the claimed application, but is merely intended to provide an example by way of illustration and description of the features and characteristics of the application, to present the best way of carrying out the application, and to enable those skilled in the art to carry out the application. Thus, the scope of the application is defined solely by the appended claims.

[0047] ​The following detailed description of the application and the examples will be better understood with reference to the drawings, in which elements and features of the application are designated by reference numerals, as indicated in the description below.

[0048] Embodiment 1

[0049] The spatial angle universal shaft has a wide range of applications, for example, it can be used to support 3D and CAD models, and to drive unmanned aerial vehicles, wind turbines, mechanical manufacturing, and automated production. In addition, for those occasions that require close cooperation and efficient transmission, the work process is more stable and efficient with the help of the angle universal shaft.

[0050] As Figures 1 to 5 shown, the embodiment takes the spatial angle universal shaft applied in the rolling mill field as an example, wherein the spatial angle is between 0-15° (not including 0°), specifically 0.5°, 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14° and 15°, and an assembly system of the spatial angle universal shaft is proposed, which includes a hanger component for connecting with external hoisting equipment and a clamp component for clamping the universal shaft, wherein the external hoisting equipment can use a travelling crane, an electric hoist and the like.

[0051] Specifically, the hanger component includes a first hanger 1, a second hanger 2, a third hanger 3, a fourth hanger 5 and a fifth hanger 6, wherein the second hanger 2 and the fourth hanger 5 are respectively the same in structure, the third hanger 3 and the fifth hanger 6 are respectively the same in structure, and the second clamp 7 and the first clamp 4 are respectively the same in structure, which are symmetrically installed at both ends of the first hanger 1. The first hanger 1, the second hanger 2, the third hanger 3, the fourth hanger 5 and the fifth hanger 6 are all made of steel material, which has high structural strength and meets the use requirements.

[0052] Further, the clamp component includes the first clamp 4 and the second clamp 7, which can firmly fix the universal shaft on both sides, so that the universal shaft will not move or deviate during installation, thereby improving the installation precision and efficiency.

[0053] In the embodiment, as Figure 1As shown, the first hanger 1 is in the shape of "day", which not only provides a high-strength frame for the whole system, but also facilitates the use of external hoisting equipment. The first hanger 1 is symmetrically provided with a first motor 13, a second motor 14, and a first screw rod 11 and a second screw rod 12. The first motor 13 drives the first screw rod 11 and the second motor 14 drives the second screw rod 12 to rotate. The second hanger 2 and the fourth hanger 5 are slidably connected to the first hanger 1 through slide rails (not labeled in the figure). When the first motor 13 and the second motor 14 are started respectively, the first screw rod 11 and the second screw rod 12 can be rotated respectively. The first screw rod 11 and the second screw rod 12 are matched with threads to drive the second hanger 2 and the fourth hanger 5 to move in the horizontal direction respectively. The first motor 11 and the second motor 12 can be controlled synchronously or individually, and can be rotated forward or backward respectively.

[0054] At this time, the second hanger 2 and the fourth hanger 5 can move towards each other or move away from each other. Alternatively, the second hanger 2 can be stationary, and the fourth hanger 5 can move horizontally inward or outward. Alternatively, the fourth hanger 5 can be stationary, and the second hanger 2 can move horizontally inward or outward. The distance between the second hanger 2 and the fourth hanger 5 is adjusted to adapt to universal shafts of different lengths.

[0055] In addition, the first hanger 1 is provided with a through hole 15. On the one hand, the through hole 15 can reduce the weight of the first hanger 1. On the other hand, the first screw rod 11 and the second screw rod 12 can be oiled through the through hole 15.

[0056] As shown in the figure, Figure 3 The second hanger 2 and the fourth hanger 5 have the same structure and are in the shape of "Kang" character. Since the second hanger 2 and the fourth hanger 5 have the same structure, the structure of the fourth hanger 5 will be mainly introduced here, and the second hanger 2 will not be described again. The fourth hanger 5 is symmetrically provided with a third motor 51, a fourth motor 53, and a third screw rod 52 and a fourth screw rod 54. The third motor 51 drives the third screw rod 52 and the fourth motor 53 drives the fourth screw rod 54 to rotate, and simultaneously drives the third hanger 3 and the fifth hanger 6 to move in the vertical direction. The third hanger 3 is slidably connected to the second hanger 2 through a slide rail.

[0057] The third motor 51 and the fourth motor 53 can move synchronously. When the third motor 51 and the fourth motor 53 are started, the corresponding third screw rod 52 and fourth screw rod 54 are rotated respectively, thereby driving the fifth hanger 6 to move in the vertical direction, realizing the rising and falling.

[0058] In combination with Figure 3As can be seen, the fifth hanger 6 can extend out of the "冂"-shaped notch and is simultaneously limited by the notch to prevent the fifth hanger 6 from exceeding the fourth hanger 5. It should be noted that the fifth hanger 6 and the fourth hanger 5 use a matching structure of a slide rail and a dovetail groove to further limit the fifth hanger 6 in the lateral direction.

[0059] In this embodiment, the third hanger 3 and the fifth hanger 6 have the same structure. The fifth hanger 6 is mounted with a fifth motor 61 and a fifth screw 62, wherein the second fixture 7 is slidably connected to the fifth hanger 6 via a slide rail. Since the third hanger 3 and the fifth hanger 6 have the same structure, the structure of the fifth hanger 6 will be mainly described here, and the third hanger 3 will not be described in detail. The bottom of the fifth hanger 6 is mounted with a fifth motor 61 and a fifth screw 62. When the fifth motor 61 is started, the fifth screw 62 rotates, thereby driving the second fixture 7 to move in the horizontal direction. The fifth motor 61 can rotate forward and reverse to achieve left and right movement.

[0060] The first motor, the second motor, the third motor, the fourth motor and the fifth motor can be servo motors, and can work independently, thereby providing the possibility of fine adjustment of the spatial angle of the universal joint.

[0061] In this embodiment, if Figure 3 and Figure 4 As shown, since the first clamp 4 and the second clamp 7 have the same structure, the first clamp 4 includes a first screw assembly 41 and a first screw motor assembly 42. This section focuses on the structure of the second clamp 7, and the first clamp 4 is not described in detail. The second clamp 7 includes a connecting frame 73, a first caliper 75, and a second caliper 76. The first caliper 75 and the second caliper 76 are connected to the connecting frame 73 via bolts and a hydraulic cylinder 74. When the hydraulic cylinder is activated to extend or retract, the first caliper 75 and the second caliper 76 can be controlled to move closer or farther from each other, thereby closing and releasing the clamp.

[0062] Combine Figure 5 As shown, a movable caliper group 77 is installed on the first caliper 75 and the second caliper 76. The movable caliper group 77 is connected to the corresponding caliper through a ball hinge (not marked in the figure), wherein the ball hinge adopts a spherical bearing structure, which can flexibly withstand pressure from different surfaces, so that the system of the present invention can meet the assembly use of universal joints of different models, lengths and weights.

[0063] It needs to be emphasized that in the installation process of the universal shaft, the two ends are fixedly connected through the flanges. In order to facilitate installation, the first clamp 75 and the second clamp 76 are the same in structure. The second clamp 7 is internally provided with a cavity structure. The second screw rod set 71 and the second screw motor set 72 are installed on the second clamp 7. The second screw rod set 71 and the second screw motor set 72 are respectively composed of six screw rods and six motors. The six motors of the second screw motor set 72 can be controlled respectively and work independently. When the motor of the second screw motor set 72 is started, the corresponding screw rod of the second screw rod set 71 starts to rotate, realizing the left and right movement effect, and the independent flange butt joint position can be adjusted. The six screw rod heads of the second screw rod set 71 are provided with rubber heads 78. When the screw rod moves and contacts the flange end surface of the universal shaft, the flange can be further pushed to move, and the friction is reduced, so that the horizontal and vertical micro-adjustment of the flange position is realized, the space angle of the universal shaft is more accurate, and through on-site use statistics, the space angle installation error value is controlled within 0.2-1%, and accurate assembly is basically realized.

[0064]

[0065] When the hydraulic cylinders on the first clamp 4 and the second clamp 7 are elongated to tighten the clamps on the universal shaft, the universal shaft installation device can be lifted by a crane or an electric hoist. After being lifted to a working height (generally set to 2-10 m), the first motor 11 and the second motor 12 are controlled to move the universal shaft in the X direction, so that the universal shaft approaches or moves away from the installation surface. The third motor 51 and the fourth motor 53 are controlled to move the universal shaft in the Z direction. The fifth motor 61 is controlled to move the universal shaft in the Y direction. It needs to be noted that the motor installed on the second lifting frame 2 is the same as the motor installed on the fourth lifting frame 5, and can be controlled synchronously or independently. The motor installed on the third lifting frame 3 is the same as the motor installed on the fifth lifting frame 6, and can be controlled synchronously or independently. When controlled synchronously, the motors can realize translational movement in the corresponding direction. When controlled independently, the motors can realize deflection movement in the corresponding direction.

[0066] During the entire installation process, an automatic operation mode is adopted. The movement of the universal shaft is accurately controlled through motors and other equipment, greatly reducing the demand for manual operation, improving the installation efficiency, and reducing labor costs. At the same time, the entire installation process is optimized. Through scientific design and arrangement, the installation process is smoother, further improving the installation efficiency and accuracy. The above is the specific operation steps of the embodiment. Through these steps, the problems of low automation degree, inconvenient installation, time-consuming and labor-intensive, and low precision in the installation process of horizontal and inclined universal shafts can be effectively solved.

[0067] The above describes the present application and its embodiments in a schematic manner, and the description is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above, without departing from the spirit of the present application, similar structural modes and embodiments can be designed without creativity, and all of them shall belong to the protection scope of the present application.

Claims

1. An assembly system for a space angle universal joint, characterized in that: It includes: A hanger component for connecting to an external hanging device; the hanger component comprises a first hanger (1), a second hanger (2), a third hanger (3), a fourth hanger (5) and a fifth hanger (6), wherein the second hanger (2) and the fourth hanger (5) are respectively mounted on the first hanger (1) in a relatively sliding manner, the third hanger (3) is mounted on the second hanger (2) in a relatively sliding manner, and the fifth hanger (6) is mounted on the fourth hanger (5) in a relatively sliding manner; and a clamp component for clamping a universal joint, the clamp component comprising a first clamp (4) and a second clamp (7), the first clamp (4) being mounted on a third hanger (3), and the second clamp (7) being mounted on a fifth hanger (6); The first clamp (4) and the second clamp (7) have the same structure. The second clamp (7) includes a first caliper (75), a second caliper (76), a hydraulic cylinder (74), a second screw group (71), a second screw motor group (72) and a connecting frame (73). The first caliper (75), the second caliper (76) and the hydraulic cylinder (74) are arranged on the connecting frame (73). The first caliper (75) and the second caliper (76) are opened and closed by the extension and contraction of the hydraulic cylinder (74). The second screw group (71) and the second screw motor group (72) for driving the screw are installed on the first caliper (75) and / or the second caliper (76). The screw is driven by the motor to move in the horizontal direction to adjust the position of the universal joint flange.

2. The assembly system according to claim 1, wherein: The first hanger (1) is symmetrically mounted with a first motor (13), a second motor (14), a first screw rod (11), and a second screw rod (12). The first motor (13) drives the first screw rod (11), and the second motor (14) drives the second screw rod (12) to rotate. The second hanger (2) and the fourth hanger (5) are slidably connected to the first hanger (1) through a slide rail, and at the same time drive the second hanger (2) and the fourth hanger (5) to move in the horizontal direction, and adjust the distance between the second hanger (2) and the fourth hanger (5) to adapt to universal joints of different lengths.

3. The assembly system according to claim 2, wherein: The second hanger (2) and the fourth hanger (5) have the same structure. A third motor (51), a fourth motor (53), a third screw rod (52) and a fourth screw rod (54) are symmetrically installed on the fourth hanger (5). The third motor (51) drives the third screw rod (52) and the fourth motor (53) drives the fourth screw rod (54) to rotate, and at the same time drives the third hanger (3) and the fifth hanger (6) to move in the vertical direction, wherein the third hanger (3) is slidably connected to the second hanger (2) through a slide rail.

4. The assembly system according to claim 3, characterized in that The third hanger (3) and the fifth hanger (6) have the same structure. A fifth motor (61) and a fifth screw rod (62) are installed on the fifth hanger (6). The fifth motor (61) drives the fifth screw rod (62) to rotate, thereby driving the first clamp (4) to move horizontally, wherein the first clamp (4) is slidably connected to the fifth hanger (6) through a slide rail.

5. The assembly system according to claim 4, characterized in that A movable caliper assembly (77) is also mounted on the first caliper (75) and / or the second caliper (76) for fixing the universal joint.

6. The assembly system according to claim 5, characterized in that The six screw heads of the second screw group (71) are mounted with rubber heads (78).

7. The assembly system according to claim 6, characterized in that The movable caliper group (77) is connected to the corresponding caliper via a ball hinge.

8. The assembly system according to any one of claims 1 to 7, characterized in that: A through hole (15) is provided on the first hanger (1).

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