Tooth coupling connected through reamed bolts

Abstract

The utility model relates to the field of couplings, and discloses a gear coupling connected by reamed bolts, which comprises a first outer gear ring and a second outer gear ring, first positioning holes are symmetrically arranged on two sides of the first outer gear ring, the first positioning holes on two sides are connected with first guide holes, second positioning holes are symmetrically arranged on two sides of the second outer gear ring, and the second guide holes are connected with second guide holes. The second positioning holes in the two sides are both connected with reamed holes, the second positioning holes are formed in the side, close to the first outer gear ring, of the second outer gear ring, reamed bolt bodies and nuts are detachably connected between the first outer gear ring and the second outer gear ring, and reamed bolts sequentially penetrate through the reamed holes, the second positioning holes, the first guide holes and the first positioning holes. And at the position of the first guide hole, the first guide hole interacts with the second guide hole and slides into the first positioning hole. The quick positioning device has the effect of quick positioning.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a gear coupling connected by hinged bolts. Background Art

[0002] A gear coupling is a mechanical part that uses internal and external teeth to mesh to achieve torque and rotational motion transmission between the two halves of the coupling. It is suitable for connecting two concentric shafts in a transmission shaft system and has a certain ability to compensate for the relative displacement of the two shafts. The gear coupling has a small radial dimension and a large load-bearing capacity. It is often used in shaft transmission under low-speed and heavy-load working conditions. High-precision and dynamically balanced gear couplings can be used for high-speed transmissions.

[0003] The outer gear rings of the existing gear coupling are connected by bolts, which penetrate the connection holes on both sides to be connected and are connected by nuts. However, the existing technology still has the following technical problems: when connecting the outer gear rings on both sides, the bolts need to pass through the connection holes on both sides at the same time, but when the connection holes on both sides are not aligned, the outer gear rings on both sides need to be manually adjusted to align before connection, which has low work efficiency. Utility Model Content

[0004] The utility model aims to provide a gear coupling connected by hinged bolts, which has the effect of rapid positioning.

[0005] The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions: a gear coupling connected by a hinged bolt, comprising a first outer gear ring and a second outer gear ring, the first outer gear ring is provided with a plurality of circumferentially symmetrical first connecting holes, first positioning holes are symmetrically arranged on both sides of the first outer gear ring, the first positioning holes on both sides are connected to the first guide hole, the first guide hole is arranged on the side of the first outer gear ring close to the second outer gear ring, the first guide hole is arranged outward toward the second outer gear ring, the second outer gear ring is provided with a plurality of circumferentially symmetrical second connecting holes, second positioning holes are symmetrically arranged on both sides of the second outer gear ring, the second positioning holes on both sides are connected to the hinged hole, the diameter of the hinged hole is larger than the diameter of the second positioning hole, the second positioning hole is arranged on the side of the second outer gear ring close to the first outer gear ring, and the first outer gear ring and the second outer gear ring are detachably connected with a hinged bolt body and a nut.

[0006] By adopting the above technical solution, by setting a first guide hole, the first guide hole is set to expand outward, and the hinged bolt body interacts with the inner inclined surface of the first guide hole while passing through the first guide hole and slides into the first positioning hole, thereby achieving the purpose of rapid positioning.

[0007] The present invention is further configured as follows: the hinged bolt body comprises a screw rod and a hinged rod, the hinged rod has a diameter greater than that of the bolt rod, and the hinged rod has a diameter equal to that of the hinged hole.

[0008] By adopting the above technical solution, the hinge rod is connected to the hinge hole. When the first outer gear ring and the second outer gear ring are connected, they can withstand the shear force between the first outer gear ring and the second outer gear ring and the bolt, thereby achieving the purpose of stable connection.

[0009] The present invention is further configured as follows: the second outer gear ring is slidably provided with an extrusion portion, an elastic member is connected between the extrusion portion and the second outer gear ring, and a movement trajectory of the extrusion portion intersects with the hinge rod.

[0010] By adopting the above technical solution, when the hinge bolt body penetrates the first outer gear ring and the second outer gear ring, the hinge rod slides into the hinge hole. At this time, the cross-section of the connection between the hinge rod and the threaded rod squeezes the end of the connecting rod. Under normal conditions, the connecting rod is pushed into the hinge hole by the elastic part, so the hinge rod pushes the connecting rod out, which can achieve the purpose of the hinge rod driving the connecting rod to slide.

[0011] The utility model is further configured as follows: the extrusion portion includes a connecting rod and a hollow frustum slidingly connected to the connection between the hinge hole and the second positioning hole, the motion trajectory of the connecting rod intersects with the hinge rod, and the connecting rod is used to push the hollow frustum toward the first guide hole.

[0012] By adopting the above technical solution, by providing a hollow truncated cone, the hollow truncated cone is pushed into the first guide hole by the connecting rod and is tangent to the first guide hole, and can now withstand the force between the first guide hole and the threaded rod.

[0013] The present invention is further configured as follows: the elastic member is configured as a spring.

[0014] The present invention is further configured as follows: the hollow cone and the outer ring are tangent to the first guide hole.

[0015] The present invention is further configured as follows: the hollow cone is provided with a second guide hole, and the diameter of the second guide hole is equal to the diameter of the screw.

[0016] The present invention is further configured as follows: the second outer gear ring is provided with a movable cavity for the hollow cone to slide at the second positioning hole.

[0017] By adopting the above technical solution and providing a movable cavity, the purpose of sliding the hollow cone in the movable cavity can be achieved.

[0018] The present invention is further configured as follows: the second outer gear ring is provided with a third guide hole, and the connecting rod is slidably connected to the third guide hole.

[0019] The present invention is further configured as follows: the elastic member is connected between the connecting rod and the second outer gear ring.

[0020] The beneficial effect of the present invention is that by setting the first guide hole, the hinged hole and the positioning hole, when the hinged bolt body penetrates the second outer gear ring and contacts the first guide hole, the threaded rod interacts with the inner ring of the first guide hole and automatically slides into the first positioning hole to position the first outer gear ring. Compared with the existing technology, the purpose of rapid positioning can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 yes Figure 1 Schematic diagram of local structure.

[0024] In the figure, 1. first outer gear ring; 11. first positioning hole; 12. first guide hole; 2. second outer gear ring; 21. second positioning hole; 22. hinged hole; 23. movable cavity; 24. third guide hole; 3. bolt body; 31. screw; 32. hinged rod; 4. nut; 5. extrusion part; 51. elastic member; 52. connecting rod; 53. hollow cone; 531. second guide hole. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0026] Embodiment, a gear coupling using hinged bolt connection, such as Figure 1-Figure 2As shown, it includes a first outer gear ring 1 and a second outer gear ring 2. The first outer gear ring 1 is provided with a plurality of circumferentially symmetrical first connecting holes, and first positioning holes 11 are symmetrically provided on both sides of the first outer gear ring 1. The first positioning holes 11 are connected to the first guide holes 12. The first guide holes 12 are arranged on the side of the first outer gear ring 1 close to the second outer gear ring 2, and the first guide holes 12 are expanded outward toward the side of the second outer gear ring 2. The second outer gear ring 2 is provided with a plurality of circumferentially symmetrical second connecting holes, and second positioning holes 21 are symmetrically provided on both sides of the second outer gear ring 2. The second positioning holes 21 are connected to the hinged holes 22. The second positioning holes 21 are provided on the side of the second outer gear ring 2 close to the first outer gear ring 1. The diameter of the hinged holes 22 is larger than the diameter of the second positioning holes 21. The second outer gear ring 2 is slidably connected with an extrusion part 5, and an elastic part 51 is connected between the extrusion part 5 and the second outer gear ring 2. The elastic part 51 is provided as a spring, and the extrusion part 5 includes a connecting rod 52 and a hollow cone 53.

[0027] Further, such as Figure 1-Figure 2 As shown, a hinge bolt body 3 and a nut 4 are detachably connected between the first outer gear ring 1 and the second outer gear ring 2. The hinge bolt body 3 includes a screw rod 31 and a hinge rod 32. The diameter of the hinge rod 32 is larger than the diameter of the screw rod 31, and the diameter of the hinge rod 32 is equal to the diameter of the hinge hole 22. The second outer gear ring 2 is provided with a third guide hole 24 at the hinge hole 22. The connecting rod 52 is slidably connected to the third guide hole 24. The elastic member 51 is connected between the connecting rod 52 and the second outer gear ring 2. The second outer gear ring 2 is provided with a movable cavity 23 near the second positioning space. A hollow truncated cone 53 is slidably connected in the movable cavity 23. The hollow truncated cone 53 is provided with a second guide hole 531. The diameter of the second guide hole 531 is equal to the diameter of the screw rod 31. The outer ring of the hollow truncated cone 53 is tangent to the first guide hole 12.

[0028] Its working principle is as follows: the hinged bolt body 3 is passed through the hinged hole 22 and the second positioning hole 21 in sequence to penetrate the second outer gear ring 2, and the hinged bolt body 3 continues to pass through. At the first guide hole 12, the end of the screw rod 31 contacts the inner ring of the first guide hole 12. Since the first guide hole 12 is expanded outward, the end of the screw rod 31 contacts the inclined surface of the first guide hole 12 and while being squeezed, the screw rod 31 passes through the first guide hole 12 and contacts the first positioning hole 11 and passes through the first positioning hole 11. At this time, the hinged bolt body 3 penetrates the first outer gear ring 1 and the second outer gear ring 2 at the same time. At the same time, the hinged rod 32 enters the hinged hole 22, and the hinged rod 32 squeezes the connecting rod 52. The elastic member 51 is deformed under the force, and the connecting rod 52 drives the hollow cone 53 to move in the movable cavity 23 to the first guide hole 12, connecting the nut 4 and the hinged bolt body 3. At this time, the positioning of the first outer gear ring 1 and the second outer gear ring 2 is realized, and then the first connecting hole and the second connecting hole are connected.

Claims

1. A gear coupling connected by hinged bolts, characterized in that: The invention comprises a first outer gear ring (1) and a second outer gear ring (2), wherein the first outer gear ring (1) is provided with a plurality of first connecting holes which are symmetrical in circumference, and first positioning holes (11) are symmetrically provided on both sides of the first outer gear ring (1), and the first positioning holes (11) on both sides are connected with first guide holes (12), and the first guide holes (12) are provided on a side of the first outer gear ring (1) close to the second outer gear ring (2), and the first guide holes (12) are provided outwardly in the direction of the second outer gear ring (2), and the second outer gear ring (2) is provided with a plurality of first connecting holes which are symmetrical in circumference, and the first positioning holes (11) on both sides are symmetrically provided with first guide holes (12), and the first guide holes (12) are provided on a side of the first outer gear ring (1) close to the second outer gear ring (2), and the first guide holes (12) are provided outwardly in the direction of the second outer gear ring (2), and the second outer gear ring (2) is provided with a plurality of first connecting holes which are symmetrical in circumference, and the first positioning holes (11) on both sides are connected with first guide holes (12), and the first guiding holes (12) are provided outwardly in the direction of the second outer gear ring (2), and the first guiding holes (12) are provided outwardly in the direction of the second outer gear ring (2). A plurality of circumferentially symmetrical second connecting holes are provided, and second positioning holes (21) are symmetrically provided on both sides of the second outer gear ring (2), and the second positioning holes (21) on both sides are connected with hinged holes (22), and the diameter of the hinged holes (22) is larger than the diameter of the second positioning holes (21), and the second positioning holes (21) are provided on a side of the second outer gear ring (2) close to the first outer gear ring (1), and a hinged bolt body (3) and a nut (4) are detachably connected between the first outer gear ring (1) and the second outer gear ring (2).

2. The gear coupling connected by hinged bolts according to claim 1, characterized in that: The hinge bolt body (3) comprises a screw rod (31) and a hinge rod (32). The diameter of the hinge rod (32) is larger than the diameter of the bolt rod, and the diameter of the hinge rod (32) is equal to the diameter of the hinge hole (22).

3. The gear coupling connected by hinged bolts according to claim 2, characterized in that: The second outer gear ring (2) is slidably provided with an extrusion portion (5), an elastic member (51) is connected between the extrusion portion (5) and the second outer gear ring (2), and the movement trajectory of the extrusion portion (5) intersects with the hinge rod (32).

4. The gear coupling connected by hinged bolts according to claim 3, characterized in that: The extrusion portion (5) comprises a connecting rod (52) and a hollow truncated cone (53) slidably connected to the connection between the hinge hole (22) and the second positioning hole (21); the connecting rod (52) intersects with the motion trajectory of the hinge rod (32); and the connecting rod (52) is used to push the hollow truncated cone (53) toward the first guide hole (12).

5. The gear coupling connected by hinged bolts according to claim 4, characterized in that: The elastic member (51) is configured as a spring.

6. The gear coupling connected by hinged bolts according to claim 5, characterized in that: The hollow truncated cone (53) is tangent to the outer ring and the first guide hole (12).

7. The gear coupling connected by hinged bolts according to claim 6, characterized in that: The hollow cone (53) is provided with a second guide hole (531), and the diameter of the second guide hole (531) is equal to the diameter of the screw (31).

8. The gear coupling connected by hinged bolts according to claim 7, characterized in that: The second outer gear ring (2) is provided with a movable cavity (23) at the second positioning hole (21) for the hollow truncated cone (53) to slide.

9. The gear coupling connected by hinged bolts according to claim 8, characterized in that: The second outer gear ring (2) is provided with a third guide hole (24), and the connecting rod (52) is slidably connected to the third guide hole (24).

10. The gear coupling connected by hinged bolts according to claim 9, characterized in that: The elastic member (51) is connected between the connecting rod (52) and the second outer gear ring (2).

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