Balancing device for two groups of double-cross type universal couplings

Abstract

A balancing device for two groups of double-cross type universal couplings comprises a bottom plate arranged at the bottom, an upper plate mounted at the top end of the bottom plate through a supporting column, a lower double-cross type universal coupling mounted on the bottom plate, an upper double-cross type universal coupling mounted on the upper plate, a balancing assembly, a lower bearing bush seat, a lower bearing bush, an upper bearing bush seat and an upper bearing bush, the middle of the top end of the bottom plate is provided with a lower bearing bush seat through a balance assembly, the top end of the lower bearing bush seat is provided with a lower bearing bush connected with a lower double-cross type universal coupling, and the middle of the top end of the upper plate is provided with an upper bearing bush seat. The lower double-cross-type universal coupling and the upper double-cross-type universal coupling can be supported, the gravity of the two sets of double-cross-type universal couplings is offset, and the influence of the gravity of the double-cross-type universal couplings on operation of the whole equipment is eliminated. Fixing of the two sets of double-cross type universal couplings is facilitated, and vibration in the operation process is reduced.

Description

Technical Field

[0001] The utility model relates to a balancing device, in particular to a balancing device used for two groups of double cross-type universal couplings. Background Art

[0002] In the transmission of mechanical rotating parts, it is very common to use two sets of double cross universal couplings to transmit torque; for example, in the rolling mill used in the field of industrial production, two sets of rollers are connected to the driving components through double cross universal couplings. The two sets of double cross universal couplings are suspended, and the two ends are connected to the rollers and the driving components respectively to achieve fixation. For heavy rolling mills, the double cross universal coupling has a large rotation diameter, heavy weight, and large rotational inertia, which will have a great impact on the transmission. When the shaft angle of the double cross universal coupling is different, the gravity component force borne by the output end of the double cross universal coupling is also different; generally speaking, the larger the shaft angle, the greater the gravity effect of the double cross universal coupling on the transmission. In addition, in theory, the double cross universal coupling is a linear transmission, but due to factors such as processing, wear and load, the transmission of the double cross universal coupling is generally nonlinear, which will cause shock and vibration during the transmission process, affecting the stability of the equipment.

[0003] In order to eliminate the influence of gravity of the double cross-axis universal coupling on the transmission, a supporting component should be added to the double cross-axis universal coupling to prevent the double cross-axis universal coupling from being suspended in the air. After the double cross-axis universal coupling is supported, the vibration can also be reduced. Since the double cross-axis universal coupling will have an angular deflection, for example, the gap between the two sets of rolls in the rolling mill is adjustable, the output ends of the two sets of double cross-axis universal couplings need to move up and down respectively, and the two sets of double cross-axis universal couplings may have an angular deflection. Therefore, the components that provide support for the two sets of double cross-axis universal couplings need to move with the angular deflection of the two sets of double cross-axis universal couplings, but the existing supporting components cannot achieve this function. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a balancing device for two sets of double cross universal couplings, which effectively solves the problems mentioned in the above technical background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the utility model includes a bottom plate arranged at the bottom, an upper plate installed at the top of the bottom plate through a pillar, a lower double cross-type universal coupling installed on the bottom plate, and an upper double cross-type universal coupling installed on the upper plate, and also includes a balancing assembly, a lower bearing shell seat, a lower bearing shell, an upper bearing shell seat and an upper bearing shell, the middle part of the top of the bottom plate is equipped with a lower bearing shell seat through the balancing assembly, the top of the lower bearing shell seat is equipped with a lower bearing shell connected to the lower double cross-type universal coupling, the middle part of the top of the upper plate is equipped with an upper bearing shell seat, the middle part of the top of the upper bearing shell seat is equipped with an upper bearing shell connected to the upper double cross-type universal coupling, and the bottom end of the upper bearing shell seat is connected to the upper plate through the balancing assembly;

[0006] The balancing assembly includes a spherical shell seat, a spherical shell, a ball head, a support column and a hydraulic cylinder. The spherical shell seat is fixed to the bottom plate and the upper plate respectively. A spherical shell is embedded in the top of the spherical shell seat. A ball head is installed inside the spherical shell. A support column is arranged on the top of the ball head. Hydraulic cylinders are symmetrically installed on the lower bearing seat or the upper bearing seat on both sides of the support column.

[0007] Preferably, the top end of the support column is connected to the lower bearing seat or the upper bearing seat.

[0008] Preferably, the support column is connected to the geometric center position of the lower bearing seat or the upper bearing seat.

[0009] Preferably, the top end of the hydraulic cylinder is connected to the lower bearing seat or the upper bearing seat through a hinge.

[0010] Preferably, the surface of the ball head is coated with grease.

[0011] Preferably, the number of the hydraulic cylinders provided is at least two.

[0012] Beneficial effects: The utility model has a novel structure and ingenious conception. It can support the lower double cross universal coupling and the upper double cross universal coupling, offset the gravity of the two sets of double cross universal couplings, and eliminate the influence of the gravity of the double cross universal couplings on the operation of the overall equipment; it is beneficial to the fixation of the two sets of double cross universal couplings and reduce vibration during operation. The lower bearing or the upper bearing can be angularly offset to a certain extent, reducing the wear of the lower double cross universal coupling and the upper double cross universal coupling and the lower bearing and the upper bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the ball head installation structure of the utility model;

[0016] Figure 3 It is a side view of the utility model;

[0017] Numbers in the figure: 1, base plate; 2, pillar; 3, upper plate; 4, lower double cross universal coupling; 5, upper double cross universal coupling; 6, balancing assembly; 61, ball shell seat; 62, ball shell; 63, ball head; 64, support column; 65, hydraulic cylinder; 7, lower bearing seat; 8, lower bearing; 9, upper bearing seat; 10, upper bearing. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-3 The specific implementation modes of the present utility model are further described in detail.

[0019] Embodiment 1, by Figure 1-3 The utility model provides a balancing device for two sets of double cross universal couplings, comprising a bottom plate 1 arranged at the bottom, an upper plate 3 installed at the top of the bottom plate 1 through a support 2, a lower double cross universal coupling 4 installed on the bottom plate 1 and an upper double cross universal coupling 5 installed on the upper plate 3, and also comprising a balancing assembly 6, a lower bearing bush seat 7, a lower bearing bush 8, an upper bearing bush seat 9 and an upper bearing bush 10, wherein the middle part of the top end of the bottom plate 1 is provided with a lower bearing bush seat 7 through the balancing assembly 6, the top end of the lower bearing bush seat 7 is provided with a lower bearing bush 8 connected with the lower double cross universal coupling 4, the middle part of the top end of the upper plate 3 is provided with an upper bearing bush seat 9, the middle part of the top end of the upper bearing bush seat 9 is provided with an upper bearing bush 10 connected with the upper double cross universal coupling 5, and the bottom end of the upper bearing bush seat 9 is connected with the upper plate 3 through the balancing assembly 6;

[0020] The balancing assembly 6 includes a ball shell seat 61, a ball shell 62, a ball head 63, a support column 64 and a hydraulic cylinder 65. The ball shell seat 61 is fixed to the base plate 1 and the upper plate 3 respectively. The ball shell 62 is embedded in the top of the ball shell seat 61. The ball head 63 is installed inside the ball shell 62. The top of the ball head 63 is provided with a support column 64. Hydraulic cylinders 65 are symmetrically installed on the lower bearing seat 7 or the upper bearing seat 9 on both sides of the support column 64.

[0021] Embodiment 2

[0022] In the first embodiment, the support column 64 is inconvenient to use. Figure 1 As another preferred embodiment, the difference from the first embodiment is that the top end of the support column 64 is connected to the lower bearing seat 7 or the upper bearing seat 9, which facilitates the installation and use of the support column 64.

[0023] Embodiment 3

[0024] In the first embodiment, the support column 64 is inconvenient to use. Figure 1 As another preferred embodiment, the difference from the first embodiment is that the support column 64 is connected to the geometric center position of the lower bearing seat 7 or the upper bearing seat 9 to facilitate the supporting connection of the support column 64.

[0025] Embodiment 4

[0026] The hydraulic cylinder 65 in the first embodiment is inconvenient to install and use. Figure 1 As another preferred embodiment, the difference from the first embodiment is that the top end of the hydraulic cylinder 65 is connected to the lower bearing seat 7 or the upper bearing seat 9 through a hinge, which facilitates the installation and use of the hydraulic cylinder 65.

[0027] Embodiment 5

[0028] In the first embodiment, the ball head 63 has insufficient lubricity. Figure 1 As another preferred embodiment, the difference from the first embodiment is that the surface of the ball head 63 is coated with grease, so that the ball head 63 has better lubrication performance.

[0029] Embodiment 6

[0030] The hydraulic cylinder 65 in the first embodiment is inconvenient to use. Figure 1 As another preferred embodiment, the difference from the first embodiment is that the number of hydraulic cylinders 65 is at least two to ensure the support of the hydraulic cylinders 65.

[0031] Working principle: When the utility model is installed, the ball shell seat 61 is fixed to the middle of the top of the bottom plate 1 and the top of the upper plate 3 respectively, and a ball shell 62 is arranged in the middle of the top of the ball shell seat 61. A ball head 63 is installed in the ball shell 62. The support column 64 arranged at the top of the ball head 63 is connected and fixed to the geometric center of the lower bearing shell seat 7 or the upper bearing shell seat 9. The top of the lower bearing shell seat 7 and the upper bearing shell seat 9 are respectively provided with a lower bearing shell 8 and an upper bearing shell 10. The lower double cross universal coupling 4 is installed in the lower bearing shell 8, and the upper double cross universal coupling 5 is installed in the upper bearing shell 10. The installation is completed. During installation and use, the lower double cross universal coupling 4 and the upper double cross universal coupling 5 can rotate with the lower bearing 8, the lower bearing seat 7 and the support column 64 under the cooperation between the ball head 63 and the ball shell 62, and the arranged hydraulic cylinder 65 can support the lower double cross universal coupling 4 and the upper double cross universal coupling 5. At the same time, the lower bearing 8 or the upper bearing 10 can be angularly offset to a certain extent, so as to reduce the wear of the lower double cross universal coupling 4 and the upper double cross universal coupling 5 and the lower bearing 8 and the upper bearing 10, which is convenient for use.

[0032] Beneficial effects: The utility model has a novel structure and ingenious conception. It can support the lower double cross universal coupling 4 and the upper double cross universal coupling 5, offset the gravity of the two sets of double cross universal couplings, and eliminate the influence of the gravity of the double cross universal couplings on the operation of the overall equipment; it is beneficial to the fixation of the two sets of double cross universal couplings and reduce the vibration during operation. The lower bearing 8 or the upper bearing 10 can be angularly offset to a certain extent, reducing the wear of the lower double cross universal coupling 4 and the upper double cross universal coupling 5 and the lower bearing 8 and the upper bearing 10.

[0033] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A balancing device for two sets of double cross universal couplings, comprising a bottom plate (1) arranged at the bottom, an upper plate (3) mounted on the top of the bottom plate (1) through a support (2), a lower double cross universal coupling (4) mounted on the bottom plate (1) and an upper double cross universal coupling (5) mounted on the upper plate (3), characterized in that: It also includes a balancing assembly (6), a lower bearing shell seat (7), a lower bearing shell (8), an upper bearing shell seat (9) and an upper bearing shell (10); the lower bearing shell seat (7) is installed in the middle of the top end of the base plate (1) through the balancing assembly (6); the lower bearing shell seat (7) is provided with a lower bearing shell (8) connected to the lower double cross universal joint (4) at the top end; the upper bearing shell seat (9) is installed in the middle of the top end of the upper plate (3); the upper bearing shell seat (9) is installed with an upper bearing shell (10) connected to the upper double cross universal joint (5) at the middle of the top end; the bottom end of the upper bearing shell seat (9) is connected to the upper plate (3) through the balancing assembly (6); The balancing assembly (6) comprises a ball shell seat (61), a ball shell (62), a ball head (63), a support column (64) and a hydraulic cylinder (65); the ball shell seat (61) is fixed to the bottom plate (1) and the upper plate (3) respectively; the ball shell (62) is embedded in the top end of the ball shell seat (61); the ball head (63) is installed in the inside of the ball shell (62); the support column (64) is arranged at the top end of the ball head (63); and the hydraulic cylinders (65) are symmetrically installed on the lower bearing seat (7) or the upper bearing seat (9) on both sides of the support column (64).

2. A balancing device for two sets of double cross universal couplings as claimed in claim 1, characterized in that: The top end of the support column (64) is connected to the lower bearing seat (7) or the upper bearing seat (9).

3. A balancing device for two sets of double cross universal couplings as claimed in claim 1, characterized in that: The support column (64) is connected to the geometric center position of the lower bearing seat (7) or the upper bearing seat (9).

4. A balancing device for two sets of double cross universal couplings as claimed in claim 1, characterized in that: The top end of the hydraulic cylinder (65) is connected to the lower bearing seat (7) or the upper bearing seat (9) through a hinge.

5. A balancing device for two sets of double cross universal couplings as claimed in claim 1, characterized in that: The surface of the ball head (63) is coated with lubricating grease.

6. A balancing device for two sets of double cross universal couplings as claimed in claim 1, characterized in that: The number of the hydraulic cylinders (65) provided is at least two.

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