A transmission shaft connecting flange shock absorbing protection device

Abstract

The present invention provides a transmission shaft connecting flange shock-absorbing protection device, comprising: a shock-absorbing plate, a through hole is provided on the shock-absorbing plate, and a shock-absorbing spring is installed in the through hole; a connecting plate, two connecting plates are arranged relatively above and below the shock-absorbing plate, respectively, a first connecting plate and a second connecting plate, a ball head hole is provided on the connecting plate, and the two connecting plates are used to connect the transmission shaft and the reducer respectively; a shock-absorbing connecting piece, two shock-absorbing connecting pieces are arranged relatively along the two sides of the shock-absorbing plate, and the shock-absorbing connecting piece is arranged between the shock-absorbing plate and the connecting plate, one end of the shock-absorbing connecting piece is installed in the ball head hole of the connecting plate, and the other end is installed in the through hole of the shock-absorbing plate, and is used for shock absorption by cooperating with the shock-absorbing spring, and the shock-absorbing connecting piece is also connected to the shock-absorbing plate to transmit torque. The device has good shock-absorbing effect, can improve operation stability and service life; simple structure, easy installation, and convenient for industrial promotion and use.

Description

Technical Field

[0001] The invention belongs to the technical field of transmission equipment shock absorption in the field of metallurgical equipment, and in particular relates to a transmission shaft connecting flange shock absorption protection device. Background Art

[0002] In metallurgical equipment, some large-tonnage or large-torque equipment uses universal joints for transmission. Usually, the drive shaft is connected to the reducer, and the engine transmits the torque to the reducer through the drive shaft. During the transmission process, on the one hand, due to the use of universal joints, on the other hand, there is a deviation between the axis of the drive shaft and the drive shaft, which causes the equipment to vibrate. This vibration is difficult to eradicate, and coupled with the vibration of the equipment and other reasons, it will have an impact on the drive shaft. These impacts will damage the cross package part of the transmission and the reducer or motor, affecting the stability and service life of the equipment.

[0003] Most of the shock absorbing structures in the prior art use rubber washers installed between the connecting flanges. The shock absorbing effect of this shock absorbing structure is limited and cannot achieve a good shock absorbing effect. Therefore, it is necessary to design a shock absorbing device to eliminate the impact of the transmission shaft vibration on the equipment. Summary of the invention

[0004] The object of the present invention is to provide a transmission shaft connecting flange shock absorbing protection device, so as to at least solve the problem that the current transmission shaft vibration affects the service life and stability of the equipment.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A transmission shaft connecting flange shock absorbing protection device, the device comprising:

[0007] A shock absorbing plate, wherein the shock absorbing plate is provided with a through hole, and a shock absorbing spring is installed in the through hole;

[0008] A connecting plate, wherein there are two connecting plates, which are relatively arranged above and below the shock absorbing plate, and are respectively a first connecting plate and a second connecting plate. A ball head hole is arranged on the connecting plate, and the two connecting plates are used to connect the transmission shaft and the reducer respectively;

[0009] There are two shock-absorbing connecting parts, which are arranged opposite to each other along the two sides of the shock-absorbing disk. The shock-absorbing connecting parts are arranged between the shock-absorbing disk and the connecting disk. One end of the shock-absorbing connecting part is installed in the ball head hole of the connecting disk, and the other end is installed in the through hole of the shock-absorbing disk. The shock-absorbing connecting part is used for shock absorption by cooperating with the shock-absorbing spring. The shock-absorbing connecting part is also connected to the shock-absorbing disk to transmit torque.

[0010] In the transmission shaft connecting flange shock absorbing protection device as described above, preferably, the shock absorbing connecting member includes a shock absorbing rod and a positioning plate;

[0011] The shock-absorbing rod comprises a ball head and a rod body, the ball head cooperates with the ball head hole, the rod body passes through the positioning plate and is sleeved in the shock-absorbing spring, and an accommodating space is provided between the free end surface of the rod body and the outlet end surface where the through hole is located;

[0012] The positioning plate comprises a plate body portion and a column portion, and the column portion is connected to the shock absorbing plate.

[0013] In the transmission shaft connecting flange shock absorbing protection device as described above, preferably, a retaining ring is provided on the rod body of the shock absorbing rod, the retaining ring is arranged along the circumference of the rod body, and the retaining ring is used to position the shock absorbing rod and the shock absorbing spring.

[0014] In the transmission shaft connecting flange shock-absorbing protection device as described above, preferably, a gasket is provided in the through hole, the gasket is located at the end of the through hole where the shock-absorbing rod outlet direction is located, the gasket is in a circular ring shape, the inner diameter of the gasket is larger than the outer diameter of the shock-absorbing rod body, and the gasket and the retaining ring jointly stop the shock-absorbing spring.

[0015] In the transmission shaft connecting flange shock absorbing protection device as described above, preferably, there are a plurality of ball head holes evenly distributed on the connecting plate;

[0016] The through holes on the shock-absorbing plate include a first through hole and a second through hole, the first through hole and the second through hole are staggered and evenly distributed on the shock-absorbing plate, the first through hole is provided with a first guide cylinder, the second through hole is provided with a second guide cylinder, the first guide cylinder and the second guide cylinder are respectively provided on the upper surface and the lower surface of the shock-absorbing plate; the inner diameter of the first guide cylinder is the same as the inner diameter of the first through hole, and the inner diameter of the second guide cylinder is the same as the inner diameter of the second through hole.

[0017] In the transmission shaft connecting flange shock absorbing protection device as described above, preferably, the inner diameters of the first through hole and the second through hole are the same.

[0018] In the transmission shaft connecting flange shock absorbing protection device as described above, preferably, a cylindrical body portion is provided on the surface of the connecting disk, the ball head hole is provided in the cylindrical body of the cylindrical body portion, and the ball head portion can rotate in the ball head hole.

[0019] In the transmission shaft connecting flange shock absorbing protection device as described above, preferably, there is a clearance fit between the shock absorbing rod and the positioning plate.

[0020] In the transmission shaft connecting flange shock absorbing protection device as described above, preferably, the positioning plate is arranged between the connecting plate and the retaining ring, and the column portion of the positioning plate is threadedly connected to the shock absorbing plate.

[0021] In the transmission shaft connecting flange shock absorbing protection device as described above, preferably, the connecting plate is provided with a plurality of evenly distributed bolt holes along the circumference for connecting with the transmission shaft and the flange of the reducer.

[0022] Compared with the closest prior art, the technical solution provided by the present invention has the following excellent effects:

[0023] The invention discloses a transmission shaft connecting flange shock-absorbing protection device, which comprises a shock-absorbing plate, a connecting plate and a shock-absorbing connecting piece, wherein the shock-absorbing connecting piece is arranged between the shock-absorbing plate and the connecting plate, and the shock-absorbing connecting piece comprises a shock-absorbing rod and a positioning plate, and the connecting plate and the shock-absorbing connecting piece are symmetrically arranged on both sides of the shock-absorbing plate. When working, the shock-absorbing rod cooperates with the shock-absorbing spring to eliminate the impact generated during the operation of the equipment.

[0024] The shock absorbing rods and shock absorbing springs crosswise and evenly distributed on both sides of the shock absorbing disc can better mitigate impacts in different directions, have good shock absorbing effects, and improve the running stability and service life of the equipment. The shock absorbing protection device of the present invention has a simple structure, is easy to install, and is convenient for industrial promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0026] Figure 1 A three-dimensional diagram of a shock absorbing protection device according to an embodiment of the present invention;

[0027] Figure 2 A front view of a shock absorbing protection device according to an embodiment of the present invention;

[0028] Figure 3 for Figure 2 Middle AA section view;

[0029] Figure 4 for Figure 1 A schematic diagram of the structure of the shock absorbing plate;

[0030] Figure 5 for Figure 1 A schematic diagram of the structure of the connecting disk in FIG.

[0031] Figure 6 for Figure 1 A schematic diagram of the structure of the shock absorber rod;

[0032] Figure 7 for Figure 1 A schematic diagram of the structure of the positioning plate in FIG.

[0033] Figure 8 This is a diagram of the installation structure status of the shock absorbing protection device and the transmission shaft according to an embodiment of the present invention.

[0034] In the figure: 1. shock-absorbing plate; 11. first through hole; 12. first guide cylinder; 13. second through hole; 14. second guide cylinder; 15. connecting hole; 2. connecting plate; 21. cylinder body; 22. ball head hole; 23. bolt hole; 31. shock-absorbing rod; 311. ball head; 312. rod body; 313. retaining ring; 32. positioning plate; 321. plate body; 322. columnar body; 4. shock-absorbing spring; 5. gasket; 6. transmission shaft flange; 7. transmission shaft. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0036] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] like Figures 1 to 8 As shown, according to an embodiment of the present invention, a transmission shaft connecting flange shock absorbing protection device is provided. The shock absorbing protection device of the present invention is connected between the transmission shaft and the reducer, and is connected to the device through the transmission shaft flange and the reducer flange, which can eliminate the impact generated during the operation of the equipment and improve the stability and service life of the equipment. The "up" and "down" movement directions in the present invention refer to the directions represented when the device is placed vertically and the components present an up-and-down connection structure.

[0038] The shock-absorbing protection device of the present invention comprises: a shock-absorbing disc 1, a connecting disc 2 and a shock-absorbing connecting piece.

[0039] The shock absorbing disc 1 is provided with a plurality of evenly distributed through holes, in which shock absorbing springs 4 are installed, and a connecting hole 15 is provided at the center of the shock absorbing disc 1 .

[0040] In a specific embodiment of the present invention, the through holes on the shock absorbing plate 1 include a first through hole 11 and a second through hole 13, the first through hole 11 and the second through hole 13 are staggered and evenly distributed on the shock absorbing plate 1, the first through hole 11 is provided with a first guide cylinder 12, the second through hole 13 is provided with a second guide cylinder 14, the first guide cylinder 12 and the second guide cylinder 14 are respectively provided on the upper surface and the lower surface of the shock absorbing plate; the inner diameter of the first guide cylinder 12 is the same as the inner diameter of the first through hole 11, and the inner diameter of the second guide cylinder 14 is the same as the inner diameter of the second through hole 13. Preferably, the inner diameters of the first through hole 11 and the second through hole 13 are the same. In a specific embodiment, there are four first through holes 11 and four second through holes 13. Of course, in other embodiments, the first through holes 11 and the second through holes 13 can also be five, six, seven or other multiple numbers. The first through holes 11 and the second through holes 13 need to be staggered and evenly distributed on the shock absorbing plate 1, and the present invention does not limit the number of the first through holes 11 and the second through holes 13.

[0041] There are two connecting plates 2, which are relatively arranged above and below the shock absorbing plate 1, respectively, and are the first connecting plate 2 and the second connecting plate 2. The connecting plates 2 are provided with ball head holes 22, and the ball head holes 22 are evenly distributed on the connecting plates 2. The two connecting plates 2 are used to connect the transmission shaft 7 and the reducer respectively.

[0042] In a specific embodiment of the present invention, the connecting disk 2 is provided with a plurality of evenly distributed bolt holes 23 along the circumferential direction, and the two connecting disks 2 are respectively connected to the transmission shaft flange 6 and the reducer flange through the bolt holes 23, so that the device is connected between the transmission shaft 7 and the reducer.

[0043] In a specific embodiment of the present invention, a barrel portion 21 is provided on the surface of the connection disk 2, and a ball head hole 22 is provided in the barrel of the barrel portion 21. Preferably, there are multiple barrel portions 21 and multiple ball head holes 22, which are evenly distributed on the connection disk 2. In a specific embodiment, the number of barrel portions 21 is the same as the number of first through holes 11 / second through holes 13, both of which are four.

[0044] There are two shock-absorbing connectors, which are arranged opposite to each other along the two sides of the shock-absorbing plate 1 and distributed on the upper and lower sides of the shock-absorbing plate 1. The shock-absorbing connector is arranged between the shock-absorbing plate 1 and the connecting plate 2. One end of the shock-absorbing connector is installed in the ball head hole 22 of the connecting plate 2, and the other end is installed in the through hole of the shock-absorbing plate 1. It is used for shock absorption by cooperating with the shock-absorbing spring 4. The shock-absorbing connector is also connected to the connecting hole 15 of the shock-absorbing plate 1 for transmitting torque.

[0045] In a specific embodiment of the present invention, the shock absorbing connecting member includes a shock absorbing rod 31 and a positioning plate 32 .

[0046] The shock-absorbing rod 31 includes a ball head 311 and a rod body 312. The shock-absorbing rod 31 and the connecting disk 2 are matched through a spherical hole, specifically, the ball head 311 is matched with the ball head hole 22, and the ball head 311 can rotate in the ball head hole 22, so that when the connecting disk 2 applies impact force to the shock-absorbing rod 31, the shock-absorbing rod 31 can be evenly stressed, and the forces in different directions are buffered by shock absorption; the rod body 312 passes through the positioning disk 32 and is sleeved in the shock-absorbing spring 4, and shock absorption protection is provided by the shock-absorbing spring 4 and the shock-absorbing rod 31. An accommodating space is provided between the free end face of the rod body 312 and the outlet end face where the through hole is located. When the device is subjected to impact force, the connecting disk 2 applies force to the shock-absorbing rod 31, and the shock-absorbing rod 31 is buffered in the accommodating space in the through hole of the shock-absorbing disk 1 under the action of the shock-absorbing spring 4, releasing the impact force, thereby keeping the device stable. In a specific embodiment, eight shock absorbing rods 31 are provided, four of which are distributed on one side of the shock absorbing plate 1 , and four are distributed on the other side of the shock absorbing plate 1 .

[0047] The positioning disk 32 includes a disk body 321 and a columnar body 322. The disk body 321 is provided with a plurality of through holes. The rod body 312 of the shock absorbing rod 31 passes through the through holes and is sleeved on the shock absorbing spring 4. The columnar body 322 is threadedly connected to the shock absorbing disk 1 through the connecting hole 15. Of course, in other embodiments of the present invention, the columnar body 322 can also be connected to the shock absorbing disk 1 as a whole through other fastening connection methods to smoothly transmit torque. The outer diameter of the shock absorbing rod 31 is smaller than the inner diameter of the through hole on the positioning disk 32, so that the shock absorbing rod can move up and down in the through hole. The positioning disk 32 is used to transmit torque, and the torque transmission process is first connecting disk-shock absorbing rod 31-positioning disk 32-shock absorbing disk 1-positioning disk 32-shock absorbing rod 31-second connecting disk.

[0048] In a specific embodiment of the present invention, a retaining ring 313 is provided on the rod body 312 of the shock absorbing rod 31. The retaining ring 313 is provided along the circumference of the rod body 312, and the retaining ring 313 is used to position the shock absorbing rod 31 and the shock absorbing spring 4. When the shock absorbing rod 31 reciprocates up and down, the shock absorbing spring 4 follows the shock absorbing rod 31 to reciprocate up and down under the blockage of the retaining ring 313, thereby reducing the impact force; when the retaining ring 313 of the shock absorbing rod 31 moves down / up to the edge of the first guide cylinder 12 / second guide cylinder 14, it starts to rebound and move in the opposite direction. The shock absorbing rod 31 and the positioning plate 32 are clearance-matched, and during the process of the shock absorbing rod 31 and the connecting plate 2 reciprocating up and down together, the positioning plate 32 only keeps rotating and does not reciprocate up and down. The positioning plate 32 is arranged between the connecting plate 2 and the retaining ring 313. The column part 322 of the positioning plate 32 is fixedly connected to the shock absorbing plate 1. The positioning plate 32 close to the transmission shaft 7 transmits the torque to the shock absorbing plate 1, and the shock absorbing plate 1 transmits it to the positioning plate 32 close to the reducer.

[0049] In a specific embodiment of the present invention, a pad 5 is provided in the through hole, and the pad 5 is located at the end of the through hole where the shock absorber rod 31 is located in the exit direction. The pad 5 is annular, and the inner diameter of the pad 5 is larger than the outer diameter of the rod body 312 of the shock absorber rod 31. The pad 5 and the retaining ring 313 jointly stop the shock absorber spring 4. In the present invention, the pad 5 is provided at the end of the first through hole 11 and the second through hole 13 away from the guide cylinder. When the shock absorber rod 31 is subjected to a large impact force, the reciprocating stroke is long, and the free end of the shock absorber rod 31 may rush out of the through hole. Therefore, when the inner diameter of the annular pad 5 is larger than the outer diameter of the rod body 312 of the shock absorber rod 31, it can be ensured that the rod body 312 can rush out of the through hole of the shock absorber plate 1, thereby ensuring a better shock absorption effect.

[0050] When installing the transmission shaft 7 connection flange shock-absorbing protection device of the present invention, the following steps are followed:

[0051] First, install the shock-absorbing spring 4 in the first through hole 11 and the second through hole 13 of the shock-absorbing plate 1, and fix the pad 5 on the ends of the first through hole 11 and the second through hole 13 away from the guide cylinder; secondly, fix the column parts 322 of the two positioning plates in the connecting holes 15 on both sides of the shock-absorbing plate 1 respectively; thirdly, distribute the shock-absorbing rods 31 symmetrically on both sides of the shock-absorbing plate 1, and the shock-absorbing rods 31 pass through the through holes of the positioning plates 32 and are sleeved on the shock-absorbing spring 4; finally, install the connecting plates 2 on both sides through the matching connection of the ball head hole 22 and the ball head 311; respectively connect the connecting plates 2 on both sides to the transmission shaft flange 6 and the reducer flange through bolts, and the shock-absorbing protection device can be used.

[0052] In summary, the transmission shaft connecting flange shock-absorbing protection device of the present invention comprises a shock-absorbing plate, a connecting plate and a shock-absorbing connecting piece, the shock-absorbing connecting piece is arranged between the shock-absorbing plate and the connecting plate, the shock-absorbing connecting piece comprises a shock-absorbing rod and a positioning plate, and the connecting plate and the shock-absorbing connecting piece are symmetrically arranged on both sides of the shock-absorbing plate. When working, the shock-absorbing rod cooperates with the shock-absorbing spring to eliminate the impact generated during the operation of the equipment.

[0053] The shock absorbing rods and shock absorbing springs crosswise and evenly distributed on both sides of the shock absorbing disc can better mitigate impacts in different directions, have good shock absorbing effects, and improve the running stability and service life of the equipment. The shock absorbing protection device of the present invention has a simple structure, is easy to install, and is convenient for industrial promotion and use.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A transmission shaft connecting flange shock absorbing protection device, characterized in that: The device comprises: A shock absorbing plate, wherein the shock absorbing plate is provided with a through hole, and a shock absorbing spring is installed in the through hole; A connecting plate, wherein there are two connecting plates, which are relatively arranged above and below the shock absorbing plate, and are respectively a first connecting plate and a second connecting plate. A ball head hole is arranged on the connecting plate, and the two connecting plates are used to connect the transmission shaft and the reducer respectively; A shock-absorbing connecting piece, wherein two shock-absorbing connecting pieces are arranged opposite to each other along the two sides of the shock-absorbing disc, and the shock-absorbing connecting piece is arranged between the shock-absorbing disc and the connecting disc, and one end of the shock-absorbing connecting piece is installed in the ball head hole of the connecting disc, and the other end is installed in the through hole of the shock-absorbing disc, and is used for shock absorption by cooperating with the shock-absorbing spring, and the shock-absorbing connecting piece is also connected to the shock-absorbing disc for transmitting torque; The shock-absorbing connecting member includes a shock-absorbing rod and a positioning plate; The shock-absorbing rod comprises a ball head and a rod body, the ball head cooperates with the ball head hole, the rod body passes through the positioning plate and is sleeved in the shock-absorbing spring, and an accommodating space is provided between the free end surface of the rod body and the outlet end surface where the through hole is located; The positioning plate comprises a plate body and a column body, and the column body is connected to the shock absorbing plate; There are multiple ball head holes evenly distributed on the connecting plate.

2. The transmission shaft connecting flange shock absorbing protection device according to claim 1, characterized in that: A retaining ring is arranged on the rod body of the shock absorbing rod. The retaining ring is arranged along the circumference of the rod body and is used to position the shock absorbing rod and the shock absorbing spring.

3. The transmission shaft connecting flange shock absorbing protection device according to claim 2, characterized in that: A pad is provided in the through hole, and the pad is located at the end of the through hole where the shock absorber rod outlet is located. The pad is annular, and the inner diameter of the pad is larger than the outer diameter of the shock absorber rod body. The pad and the retaining ring together stop the shock absorber spring.

4. The transmission shaft connecting flange shock absorbing protection device according to claim 1, characterized in that: The through holes on the shock-absorbing plate include a first through hole and a second through hole, the first through hole and the second through hole are staggered and evenly distributed on the shock-absorbing plate, the first through hole is provided with a first guide cylinder, the second through hole is provided with a second guide cylinder, the first guide cylinder and the second guide cylinder are respectively provided on the upper surface and the lower surface of the shock-absorbing plate; the inner diameter of the first guide cylinder is the same as the inner diameter of the first through hole, and the inner diameter of the second guide cylinder is the same as the inner diameter of the second through hole.

5. The transmission shaft connecting flange shock absorbing protection device according to claim 4, characterized in that: The first through hole and the second through hole have the same inner diameter.

6. The transmission shaft connecting flange shock absorbing protection device according to claim 2, characterized in that: A cylindrical body portion is arranged on the surface of the connecting disk, the ball head hole is arranged in the cylindrical body of the cylindrical body portion, and the ball head portion can rotate in the ball head hole.

7. The transmission shaft connecting flange shock absorbing protection device according to claim 2, characterized in that: The damping rod and the positioning plate are clearance-matched.

8. The transmission shaft connecting flange shock absorbing protection device according to claim 7, characterized in that: The positioning plate is arranged between the connecting plate and the retaining ring, and the column part of the positioning plate is threadedly connected with the shock absorbing plate.

9. The transmission shaft connecting flange shock absorbing protection device according to claim 1, characterized in that: The connection plate is provided with a plurality of bolt holes evenly distributed along the circumference, and is used for connecting with the flange of the transmission shaft and the reducer.

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