Engine flywheel coupling

Abstract

The utility model discloses an engine flywheel coupling, which relates to the field of coupling devices and comprises a left half coupling, a right half coupling, a friction plate and a transmission shaft, and the friction plate is mounted between the left half coupling and the right half coupling. According to the engine flywheel coupling, the two sets of half couplings and the friction plates are connected in a tooth-shaped mode, the contact area of the friction plates and the two sets of half couplings can be increased, higher torque loads can be borne, the connecting strength of the friction plates and the two sets of half couplings is improved, and normal operation of equipment is guaranteed; the two groups of half couplings are fixedly connected with the friction plate through the axial connecting assembly and the radial connecting assembly respectively, so that the axial bearing capacity and the radial bearing capacity of the coupling can be enhanced, and displacement and play between the half couplings in the circumferential direction under the axial acting force are effectively prevented; the connecting strength of the two sets of half couplings and the friction plates is improved, and meanwhile the couplings can be detached conveniently, and the friction plates can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to an engine flywheel coupling. Background Art

[0002] The coupling enables the engine flywheel and the dynamometer output shaft to rotate together, acting as a connection and transmitting motion and torque. In high-speed and heavy-load power transmission, some couplings also have the functions of buffering, vibration reduction and improving the dynamic performance of the shaft system.

[0003] The existing coupling is mainly composed of two sets of half-couplings and friction plates. The friction plates are installed between the two sets of half-couplings and fixedly connected by multiple sets of fixing bolts. Long-term high-load operation of the coupling will cause the friction plates to wear. Once the friction plates are excessively worn, the maximum torque they can transmit will be reduced and the friction plates need to be replaced in time. At the same time, the connection method between the two sets of half-couplings and the friction plates is relatively simple. During use, displacement and movement are prone to occur between the two sets of half-couplings and the friction plates, and the connection strength is low, which in turn affects the normal operation of the equipment. In view of the shortcomings of the existing technology, we propose an engine flywheel coupling to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an engine flywheel coupling, comprising a left half coupling, a right half coupling, a friction plate and a transmission shaft, wherein the friction plate is installed between the left half coupling and the right half coupling, and the transmission shaft is fixedly installed on the outer walls of the left half coupling and the right half coupling, respectively; an axial connection assembly and a radial connection assembly are respectively provided between the left half coupling, the right half coupling and the friction plate, and the axial connection assembly and the radial connection assembly respectively connect and fix the left half coupling, the right half coupling and the friction plate axially and radially;

[0005] The left half coupling, the right half coupling and the friction plate are connected via a mounting assembly, and the mounting assembly has the function of improving the strength of the connection between the left half coupling, the right half coupling and the friction plate.

[0006] Preferably, the axial connection assembly includes a left axial bolt, a first screw hole, a right axial bolt and a second screw hole, the first screw hole is axially opened inside the left half coupling and the friction plate, and the left axial bolt is threadedly connected inside the first screw hole.

[0007] Preferably, the second screw hole is axially opened inside the right half coupling and the friction plate, the right axial bolt is threadedly connected inside the second screw hole, and the first screw hole and the second screw hole are staggered and annularly distributed.

[0008] Preferably, the radial connection assembly includes a left radial bolt, a third screw hole, a right radial bolt, a fourth screw hole, a left connecting member and a right connecting member, the left connecting member is fixedly installed on the inner wall of the left half coupling, the right connecting member is fixedly installed on the inner wall of the right half coupling, the left connecting member and the right connecting member are respectively attached to the outer peripheral wall of the friction plate, and the left connecting member and the right connecting member are distributed in an annular staggered manner.

[0009] Preferably, the third screw hole is respectively opened in the left connecting member and the friction plate, the fourth screw hole is respectively opened in the right connecting member and the friction plate, the left radial bolt is threadedly connected in the third screw hole, and the right radial bolt is threadedly connected in the fourth screw hole.

[0010] Preferably, the mounting assembly includes a left connecting gear ring, a left annular gear groove, a right annular gear groove and a right connecting gear ring, and the left connecting gear ring and the right connecting gear ring are respectively fixedly mounted on the outer walls on both sides of the friction plate.

[0011] Preferably, the left annular tooth groove and the right annular tooth groove are respectively opened inside the left connecting gear ring and the right connecting gear ring, the left connecting gear ring is inserted into the left annular tooth groove, and the right connecting gear ring is inserted into the right annular tooth groove.

[0012] The utility model discloses an engine flywheel coupling, which has the following beneficial effects: the engine flywheel coupling adopts a toothed connection method between the two groups of half couplings and the friction plates, which can increase the contact area between the friction plates and the two groups of half couplings, making the friction force distribution more uniform. When transmitting torque, multiple teeth are subjected to force at the same time. Compared with other connection methods, it can withstand higher torque loads, ensure that the two components are tightly combined together, improve the strength of the connection between the friction plates and the two groups of half couplings, ensure the normal operation of the equipment, and fix the two groups of half couplings to the friction plates through axial connection components and radial connection components respectively, which can enhance the axial load-bearing capacity and radial load-bearing capacity of the coupling, effectively prevent the half couplings from being displaced and moved in the circumferential direction under axial force, further improve the strength of the connection between the two groups of half couplings and the friction plates, and facilitate the disassembly of the coupling and the replacement of the friction plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0015] Figure 2 This is an internal sectional view of the axial side of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the left connecting gear ring of the utility model;

[0017] Figure 4 This is a schematic diagram of the explosion structure of the right half coupling and friction plate of the utility model;

[0018] Figure 5 This is a schematic diagram of the friction plate structure of the utility model.

[0019] In the figure: 1. Left half coupling; 2. Right half coupling; 3. Friction plate; 4. Drive shaft; 5. Axial connection assembly; 501. Left axial bolt; 5011. First screw hole; 502. Right axial bolt; 5021. Second screw hole; 6. Radial connection assembly; 601. Left radial bolt; 6011. Third screw hole; 602. Right radial bolt; 6021. Fourth screw hole; 603. Left connecting piece; 604. Right connecting piece; 7. Mounting assembly; 701. Left connecting gear ring; 702. Left annular tooth groove; 703. Right annular tooth; 704. Right connecting gear ring. DETAILED DESCRIPTION

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] The embodiment of the utility model discloses an engine flywheel coupling.

[0022] According to the attached Figure 1-5As shown, it includes a left half coupling 1, a right half coupling 2, a friction plate 3 and a transmission shaft 4. The left half coupling 1, the right half coupling 2, the friction plate 3 and the transmission shaft 4 are installed to form a coupling. The friction plate 3 is installed between the left half coupling 1 and the right half coupling 2. The transmission shaft 4 is fixedly installed on the outer walls of the left half coupling 1 and the right half coupling 2 respectively. An axial connection component 5 and a radial connection component 6 are respectively provided between the left half coupling 1, the right half coupling 2 and the friction plate 3. The axial connection component 5 and the radial connection component 6 respectively connect and fix the left half coupling 1, the right half coupling 2 and the friction plate 3 axially and radially. Before using the coupling, First, the left half coupling 1, the right half coupling 2, and the friction plate 3 are connected and installed through the axial connection component 5, the radial connection component 6 and the installation component 7 respectively. Then, the transmission shaft 4 at the left half coupling 1 and the right half coupling 2 are fixed to the engine flywheel and the dynamometer respectively. When the dynamometer is working, the coupling drives the engine flywheel to rotate, so that the engine power test can be performed. At the same time, the coupling can make the engine flywheel and the dynamometer output shaft rotate together and transmit motion and torque. In high-speed and heavy-load power transmission, some couplings also have the functions of buffering, vibration reduction and improving the dynamic performance of the shaft system.

[0023] The left half coupling 1, the right half coupling 2 and the friction plate 3 are connected by the installation assembly 7. The installation assembly 7 has the function of improving the strength of the connection between the left half coupling 1, the right half coupling 2 and the friction plate 3. When the coupling is used for a long time, the friction plate 3 is a key transmission component in the coupling. If the friction plate 3 is subjected to uneven pressure during use, for example due to improper installation or structural deformation of the coupling, it will cause local wear to increase, and the friction plate 3 needs to be disassembled and replaced in time. At this time, the axial connection assembly 5, the radial connection assembly 6 and the installation assembly 7 are respectively removed from the inside of the left half coupling 1, the right half coupling 2 and the friction plate 3, and the axial connection assembly 5, the radial connection assembly 6 and the installation assembly 7 are no longer used to install and fix the various components of the coupling. Then, the left half coupling 1 and the right half coupling 2 on both sides are separated. After separation, the friction plate 3 between the left half coupling 1 and the right half coupling 2 can be disassembled and replaced from between the left half coupling 1 and the right half coupling 2.

[0024] The axial connection assembly 5 includes a left axial bolt 501, a first screw hole 5011, a right axial bolt 502 and a second screw hole 5021. The first screw hole 5011 is axially opened inside the left half coupling 1 and the friction plate 3. The left axial bolt 501 is threadedly connected inside the first screw hole 5011. When replacing, pick up the replaced friction plate 3 and insert the friction plate 3 into the left half coupling 1 so that the position of the connected left connecting gear ring 701 corresponds to the position of the left annular tooth groove 702. The first screw hole 5011 at the left half coupling 1 and the friction plate 3 are aligned, and then the installed left half coupling 1 and the friction plate 3 are axially and radially locked by multiple groups of left axial bolts 501 and multiple groups of left radial bolts 601 respectively.

[0025] The second screw hole 5021 is axially opened inside the right half coupling 2 and the friction plate 3, and the right axial bolt 502 is threadedly connected to the second screw hole 5021. The first screw hole 5011 and the second screw hole 5021 are staggered and annularly distributed. Further, pick up the right half coupling 2, and insert the left half coupling 1 into the friction plate 3, so that the position of the right connecting gear ring 704 after connection corresponds to the position of the right annular gear groove 703, and the second screw hole 5021 at the right half coupling 2 and the friction plate 3 is aligned, and then the installed right half coupling 2 and the friction plate 3 are axially and radially locked by multiple groups of left and right axial bolts 502 and multiple groups of left and right radial bolts 602 respectively.

[0026] The radial connection assembly 6 includes a left radial bolt 601, a third screw hole 6011, a right radial bolt 602, a fourth screw hole 6021, a left connecting piece 603 and a right connecting piece 604. The left connecting piece 603 is fixedly installed on the inner wall of the left half coupling 1, and the right connecting piece 604 is fixedly installed on the inner wall of the right half coupling 2. The left connecting piece 603 and the right connecting piece 604 are respectively attached to the outer peripheral wall of the friction plate 3. The left connecting piece 603 and the right connecting piece 604 are annularly staggered. When the coupling is in use, the left half coupling 1 and the right half coupling 2 are respectively installed with the friction plate 3 through the left connecting gear ring 701 and the right connecting gear ring 704, so that the two sets of connecting gear rings can be improved. The contact area between the friction plate 3 and the two sets of half-couplings makes the friction force distribution more uniform. When transmitting torque, multiple teeth are subjected to force at the same time. Compared with other connection methods (such as simple plane contact), it can withstand higher torque loads. The toothed connection of the friction plate 3 and the half-coupling combination can effectively transmit power. At the same time, the toothed connection method can prevent relative sliding between the friction plate 3 and the half-coupling because the teeth are engaged with each other to form a mechanical interlocking structure. Even under impact loads or vibrations, this connection method can ensure that the two components are tightly combined together, thereby improving the strength of the connection between the friction plate 3 and the two sets of half-couplings and ensuring the normal operation of the equipment.

[0027] The third screw hole 6011 is respectively opened in the left connecting piece 603 and the friction plate 3, and the fourth screw hole 6021 is respectively opened in the right connecting piece 604 and the friction plate 3. The left radial bolt 601 is threadedly connected to the inside of the third screw hole 6011, and the right radial bolt 602 is threadedly connected to the inside of the fourth screw hole 6021. During use, the two sets of half couplings are connected and installed with the friction plate 3 through the axial connection component 5. When in use, the left axial bolt 501 and the right axial bolt 502 installed on both sides can more accurately limit the axial displacement of the two sets of half couplings and the friction plate 3, thereby improving the axial positioning accuracy. The coupling may be subjected to a large axial force, and the axial bearing capacity of the coupling is enhanced to prevent the half coupling from being subjected to axial force. Under the action of the force, the two sets of half couplings are moved, and the two sets of half couplings are connected and installed with the friction plate 3 through the radial connection assembly 6. The friction plate 3 and the two sets of half couplings are connected by the left radial bolt 601 and the right radial bolt 602. When in use, the bolts are distributed on the circumference of the coupling and the friction plate 3, which can make the torque more evenly distributed on the entire connection surface. When transmitting a large torque, this uniform distribution helps to reduce local stress concentration and improve the bearing capacity and reliability of the coupling. The circumferential bolt connection forms a closed ring structure, which can effectively prevent the relative displacement and movement between the half couplings in the circumferential direction, further improve the strength of the connection between the two sets of half couplings and the friction plate 3, and facilitate the disassembly of the coupling and the replacement of the friction plate 3.

[0028] The mounting assembly 7 includes a left connecting gear ring 701 , a left annular tooth groove 702 , a right annular tooth groove 703 and a right connecting gear ring 704 . The left connecting gear ring 701 and the right connecting gear ring 704 are fixedly mounted on the outer walls of both sides of the friction plate 3 .

[0029] The left annular tooth groove 702 and the right annular tooth groove 703 are respectively opened inside the left connecting gear ring 701 and the right connecting gear ring 704 . The left connecting gear ring 701 is inserted into the left annular tooth groove 702 , and the right connecting gear ring 704 is inserted into the right annular tooth groove 703 .

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An engine flywheel coupling, comprising a left half coupling (1), a right half coupling (2), a friction plate (3) and a transmission shaft (4), wherein the friction plate (3) is mounted between the left half coupling (1) and the right half coupling (2), and the transmission shaft (4) is fixedly mounted on the outer wall of the left half coupling (1) and the outer wall of the right half coupling (2), respectively. The invention is characterized in that: An axial connection assembly (5) and a radial connection assembly (6) are respectively provided between the left half coupling (1), the right half coupling (2) and the friction plate (3), and the axial connection assembly (5) and the radial connection assembly (6) respectively connect and fix the left half coupling (1), the right half coupling (2) and the friction plate (3) in the axial and radial directions; The left half coupling (1), the right half coupling (2) and the friction plate (3) are connected via a mounting assembly (7), and the mounting assembly (7) has the function of improving the strength of the connection between the left half coupling (1), the right half coupling (2) and the friction plate (3).

2. The engine flywheel coupling according to claim 1, characterized in that: The axial connection assembly (5) comprises a left axial bolt (501), a first screw hole (5011), a right axial bolt (502) and a second screw hole (5021), wherein the first screw hole (5011) is axially opened inside the left half coupling (1) and the friction plate (3), and the left axial bolt (501) is threadedly connected inside the first screw hole (5011).

3. The engine flywheel coupling according to claim 2, characterized in that: The second screw hole (5021) is axially opened inside the right half coupling (2) and the friction plate (3), the right axial bolt (502) is threadedly connected inside the second screw hole (5021), and the first screw hole (5011) and the second screw hole (5021) are staggered and annularly distributed.

4. The engine flywheel coupling according to claim 3, characterized in that: The radial connection assembly (6) includes a left radial bolt (601), a third screw hole (6011), a right radial bolt (602), a fourth screw hole (6021), a left connecting piece (603) and a right connecting piece (604); the left connecting piece (603) is fixedly mounted on the inner wall of the left half coupling (1); the right connecting piece (604) is fixedly mounted on the inner wall of the right half coupling (2); the left connecting piece (603) and the right connecting piece (604) are respectively attached to the outer peripheral wall of the friction plate (3); and the left connecting piece (603) and the right connecting piece (604) are annularly staggered.

5. The engine flywheel coupling according to claim 4, characterized in that: The third screw hole (6011) is respectively opened in the left connecting member (603) and the friction plate (3), and the fourth screw hole (6021) is respectively opened in the right connecting member (604) and the friction plate (3). The left radial bolt (601) is threadedly connected to the inside of the third screw hole (6011), and the right radial bolt (602) is threadedly connected to the inside of the fourth screw hole (6021).

6. The engine flywheel coupling according to claim 2, characterized in that: The mounting assembly (7) comprises a left connecting gear ring (701), a left annular tooth groove (702), a right annular tooth groove (703) and a right connecting gear ring (704), wherein the left connecting gear ring (701) and the right connecting gear ring (704) are respectively fixedly mounted on the outer walls on both sides of the friction plate (3).

7. The engine flywheel coupling according to claim 6, characterized in that: The left annular tooth groove (702) and the right annular tooth groove (703) are respectively opened inside the left connecting tooth ring (701) and the right connecting tooth ring (704); the left connecting tooth ring (701) is inserted into the left annular tooth groove (702), and the right connecting tooth ring (704) is inserted into the right annular tooth groove (703).

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