Ball tooth coupling capable of being automatically adjusted

Abstract

The utility model discloses a self-adjustable ball tooth coupling, which belongs to the technical field of couplings and comprises a first connecting shaft and a second connecting shaft, a fixing ring is arranged at the right end of the first connecting shaft, a connecting shell is arranged on the right side of the fixing ring, and a mounting cavity is arranged in the connecting shell. A first mounting ring is arranged on the right side of the connecting shell, a connector is arranged on the left side of the second connecting shaft, the connector is connected with the connecting shell, a second mounting ring is arranged on the left side of the second connecting shaft, the second mounting ring is located on the right side of the connector, and the second mounting ring is connected with the first mounting ring. The self-adjustable spherical tooth coupling solves the problems that an existing spherical tooth coupling cannot be automatically adjusted according to torque and is poor in buffering performance, has the advantages of torque self-adaptive adjustment and efficient buffering and vibration reduction, can improve the operation stability of equipment and prolong the service life of the equipment, and has high application value in the field of mechanical transmission.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coupling technical field, concretely is a ball tooth coupling that can self -adjusting. BACKGROUND

[0002] Ball tooth coupling is a kind of high-performance transmission component, is widely used in mechanical field, and its structure is unique, is composed of half coupling with teeth and ball element, when working, tooth and tooth are engaged with each other and transmit torque, and ball element gives coupling excellent compensation relative displacement ability of two shafts, can effectively deal with installation error, vibration and thermal expansion and contraction in the operation of equipment, it has strong carrying capacity, high transmission efficiency, stable operation and low noise, is suitable for metallurgy, mine, hoisting and transportation etc. Heavy load working condition, provides reliable guarantee for the stable operation of mechanical equipment, but the existing ball tooth coupling still has some problems when using:

[0003] Such as the ball tooth coupling of application number 201520176264.2, its technical scheme is: front connecting shaft and rear connecting shaft, the rear end face of front connecting shaft is equipped with the concave cavity that is hemispherical, the cavity wall of concave cavity is equipped with inner arc tooth, the front end of rear connecting shaft is equipped with the ball head corresponding with the shape of concave cavity, ball head is located in concave cavity and its surface is equipped with the outer arc tooth engaged with the inner arc tooth, but the existing ball tooth coupling in many complex industrial scenes, the torque of equipment operation often changes, and the engagement transmission of the existing ball tooth connection cannot be self-adjusted according to the real-time change of torque, which leads to the overload wear and even damage of coupling when the torque mutates, affects the normal operation and service life of equipment, at the same time, industrial equipment often produces vibration and impact during starting, braking and running, cannot effectively absorb and relieve these vibrations and impacts, not only will additional fatigue damage be caused to the parts of equipment.

[0004] In view of this, in view of the above problems, in-depth study, and then the case is generated.

[0005] In view of the above problems, the original ball tooth coupling is innovatively designed. INVENTION CONTENTS

[0006] The utility model aims at providing a ball tooth coupling that can self-adjusting to solve the problems that the engagement transmission of ball tooth connection cannot be self-adjusted according to torque and the running process buffering performance is weak in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] The utility model provides a self -adjusting ball -toe coupling, including first connecting shaft and second connecting shaft, the right end of first connecting shaft is provided with fixed ring, and the right side of fixed ring is provided with connecting shell, the inside of connecting shell is provided with installation cavity, and the right side of connecting shell is provided with first mounting ring, the left side of second connecting shaft is provided with connecting head, and connecting head is connected with connecting shell, the left side of second connecting shaft is provided with second mounting ring, and second mounting ring is located the right side of connecting head, and second mounting ring is connected with first mounting ring.

[0009] Preferably, the inside of the installation cavity is a semi-conical space, and a plurality of first spline grooves are formed in the inner edge of the installation cavity.

[0010] The inside of the installation cavity is a semi-conical space and is provided with first spline grooves, the semi-conical space allows the connecting head to better fit and embed, the first spline grooves cooperate with the second spline grooves on the connecting head to effectively transmit torque, and the transmission stability of the coupling is enhanced.

[0011] Preferably, a plurality of circular grooves are formed in the inner edge of the installation cavity, and the circular grooves are located at the middle positions between adjacent first spline grooves.

[0012] The circular grooves in the inner edge of the installation cavity provide sliding tracks for the sliding beads, allowing the relative movement between the connecting head and the installation cavity to be smoother, and better compensating for the relative displacement of the two shafts.

[0013] Preferably, the connecting head is semi-conical, and a plurality of second spline grooves are formed on the surface of the connecting head, and the second spline grooves are connected to the adjacent protrusions between the first spline grooves.

[0014] The second spline grooves on the surface of the connecting head are connected to the adjacent protrusions between the first spline grooves, ensuring the reliability of torque transmission, and even if the torque changes during the operation of the equipment, the torque can still be stably transmitted from the first connecting shaft to the second connecting shaft.

[0015] Preferably, a plurality of sliding beads are provided on the surface of the connecting head, and the sliding beads are located at the middle positions of the second spline grooves, the diameters of the sliding beads are smaller than the diameters of the sliding connections to the circular grooves, and the sliding beads are slidingly connected to the inside of the circular grooves.

[0016] The sliding beads on the surface of the connecting head are slidingly connected to the circular grooves of the installation cavity, and the sliding beads can roll in the circular grooves, which can play a certain buffering role when the equipment vibrates or is impacted, reducing the damage to the connecting structure.

[0017] Preferably, an installation protrusion is provided on the outside of the second mounting ring, and the installation protrusion is connected to the first mounting ring by bolts.

[0018] The mounting protrusion of the second mounting ring and the first mounting ring are connected through bolts, which facilitates dismounting and mounting of the shaft coupling, facilitates equipment maintenance and component replacement, and improves the maintainability of the equipment.

[0019] Preferably, the second connecting shaft surface is provided with a plurality of grooves, and the grooves are long strips and staggered.

[0020] The grooves on the second connecting shaft surface are long strips and staggered, the grooves can reduce the weight of the second connecting shaft, and when the shaft is subjected to torque and vibration, the grooves can have a certain elastic deformation buffering effect, thereby enhancing the fatigue resistance of the shaft.

[0021] Compared with the prior art, the self-adjustable ball tooth shaft coupling has the advantages that:

[0022] 1. Torque self-adaptive adjustment: through the cooperation of the first spline groove, the second spline groove, the sliding ball and the circular groove, when the torque changes, the connecting head and the mounting cavity can relatively slide or be finely adjusted, the sliding of the sliding ball in the circular groove and the design of the grooves on the surface of the second connecting shaft can buffer part of the impact force when the equipment starts, brakes and runs, the grooves can absorb vibration energy through elastic deformation, reduce fatigue damage to equipment parts, prolong the service life of the equipment, and make the shaft coupling self-adjust the meshing state according to the real-time change of the torque, effectively avoid overloading wear and damage, and ensure stable operation of the equipment.

[0023] 2. High-efficiency buffering and vibration reduction: the second connecting shaft surface is provided with a plurality of grooves, and the grooves are long strips and staggered, the grooves on the surface of the second connecting shaft are long strips and staggered, the grooves can reduce the weight of the second connecting shaft, and when the shaft is subjected to torque and vibration, the grooves can have a certain elastic deformation buffering effect, thereby enhancing the fatigue resistance of the shaft. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a first connecting shaft and second connecting shaft connection structure schematic view of the utility model;

[0025] Figure 2 It is a first connecting shaft and second connecting shaft separation structure schematic view of the utility model;

[0026] Figure 3 It is a second connecting shaft enlarged structure schematic view of the utility model;

[0027] Figure 4 It is a mounting cavity structure schematic view of the utility model;

[0028] Figure 5 It is a connecting head structure schematic view of the utility model.

[0029] In the figure: 1, the first connecting shaft; 2, the fixed ring; 3, the connecting shell; 4, the first mounting ring; 5, the mounting cavity; 6, the first spline groove; 7, the circular groove; 8, the second connecting shaft; 9, the connecting head; 10, the second mounting ring; 11, the mounting protrusion; 12, the bolt; 13, the second spline groove; 14, the sliding ball; 15, the empty groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0032] A self-adjustable ball tooth coupling, including first connecting shaft 1 and second connecting shaft 8, first connecting shaft 1 right end is provided with fixed ring 2, and fixed ring 2 right side is provided with connecting shell 3, and connecting shell 3 is provided with mounting cavity 5 inside, and connecting shell 3 right side is provided with first mounting ring 4, second connecting shaft 8 left side is provided with connecting head 9, and connecting head 9 is connected with connecting shell 3, second connecting shaft 8 left side is provided with second mounting ring 10, and second mounting ring 10 is located at the right side of connecting head 9, and second mounting ring 10 is connected with first mounting ring 4.

[0033] The inside of mounting cavity 5 is a semicircular conical space, and a plurality of first spline grooves 6 are formed in the inner edge of mounting cavity 5, a plurality of circular grooves 7 are formed in the inner edge of mounting cavity 5, and the circular grooves 7 are located at the middle position between adjacent two first spline grooves 6, the inside of mounting cavity 5 is a semicircular conical space and is provided with first spline grooves 6, the semicircular conical space makes the connecting head 9 better adapt and embed, the first spline grooves 6 cooperate with the second spline grooves 13 on the connecting head 9, which can effectively transmit torque and enhance the transmission stability of the coupling, the circular grooves 7 in the inner edge of mounting cavity 5 are located between adjacent first spline grooves 6, which provide a sliding track for the sliding ball 14, making the relative movement between the connecting head 9 and the mounting cavity 5 more smooth, and better compensating the relative displacement of the two shafts.

[0034] The connecting head 9 is semi-conical, and the connecting head 9 is provided with a plurality of second spline grooves 13 on the surface, and the second spline grooves 13 are connected with the adjacent protrusions between the first spline grooves 6, the connecting head 9 is provided with a plurality of sliding balls 14 on the surface, and the sliding balls 14 are located at the middle positions of the second spline grooves 13, the diameter of the sliding ball 14 is smaller than the diameter of the sliding connection in the circular groove 7, and the sliding ball 14 is slidingly connected in the circular groove 7, the second spline grooves 13 on the surface of the connecting head 9 are connected with the adjacent protrusions of the first spline grooves 6, so that the reliability of torque transmission is ensured, and even if the torque changes in the equipment operation process, the torque can be stably transmitted from the first connecting shaft 1 to the second connecting shaft 8, the sliding ball 14 on the surface of the connecting head 9 is slidingly connected with the circular groove 7 of the mounting cavity 5, the sliding ball 14 can roll in the circular groove 7, and when the equipment vibrates or impacts, a certain buffering effect can be achieved, and the damage to the connecting structure is reduced.

[0035] The second mounting ring 10 is provided with a mounting protrusion 11 on the outer side, and the mounting protrusion 11 is connected with the first mounting ring 4 through the bolt 12; the mounting protrusion 11 of the second mounting ring 10 and the first mounting ring 4 are connected through the bolt 12, so that the coupling is convenient to disassemble and install, the equipment is convenient to maintain and the parts are convenient to replace, and the maintainability of the equipment is improved.

[0036] The second connecting shaft 8 is provided with a plurality of hollow grooves 15 on the surface, the hollow grooves 15 are in strip shape, and adjacent two hollow grooves 15 are arranged in an interlaced mode; the hollow grooves 15 on the surface of the second connecting shaft 8 are in strip shape and are arranged in an interlaced mode, the hollow grooves 15 can reduce the weight of the second connecting shaft 8, and when the shaft is subjected to torque and vibration, the hollow grooves 15 can have a certain elastic deformation buffering effect, and the fatigue resistance of the shaft is enhanced.

[0037] Working principle:

[0038] In use, when the first connecting shaft 1 rotates, the fixed ring 2 drives the connecting shell 3 to rotate synchronously, the first spline groove 6 in the mounting cavity 5 of the connecting shell 3 is meshed with the second spline groove 13 on the connecting head 9, and torque is transmitted to the second connecting shaft 8; in the process of transmitting torque, if relative displacement occurs between the two shafts due to reasons such as installation error, thermal expansion and cold contraction, the sliding ball 14 on the surface of the connecting head 9 will slide in the circular groove 7 on the inner side edge of the mounting cavity 5, so that the connecting head 9 can be finely adjusted in the mounting cavity 5, and the compensation of the relative displacement between the two shafts is realized; when the equipment runs and vibrates and impacts, the rolling of the sliding ball 14 in the circular groove 7 and the elastic deformation of the hollow groove 15 on the surface of the second connecting shaft 8 can absorb and relieve part of the vibration and impact energy, and protect the coupling and other parts of the equipment; the mounting protrusion 11 of the second mounting ring 10 and the first mounting ring 4 are connected through the bolt 12, so that the stability of the connection between the connecting shell 3 and the second connecting shaft 8 is ensured, and the coupling can be conveniently disassembled and maintained when needed.

[0039] Those aspects of the description which are not otherwise fully described are deemed to be part of the prior art to those of ordinary skill in the art.

[0040] While embodiments of the present application have been shown and described, it is to be understood that various other modifications can be made by those skilled in the art without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A self-adjusting ball stud coupling comprising a first connecting shaft (1) and a second connecting shaft (8), characterized in that: The right end of the first connecting shaft (1) is provided with a fixed ring (2), and the right side of the fixed ring (2) is provided with a connecting shell (3), the inside of the connecting shell (3) is provided with a mounting cavity (5), and the right side of the connecting shell (3) is provided with a first mounting ring (4), the left side of the second connecting shaft (8) is provided with a connecting head (9), and the connecting head (9) is connected with the connecting shell (3), the left side of the second connecting shaft (8) is provided with a second mounting ring (10), and the second mounting ring (10) is located on the right side of the connecting head (9), and the second mounting ring (10) is connected with the first mounting ring (4).

2. A self-adjusting bulb coupler as claimed in claim 1, wherein: The inside of the mounting cavity (5) is a semicircular conical space, and a plurality of first spline grooves (6) are formed in the inner edge of the mounting cavity (5).

3. A self-adjusting bulb coupler as defined in claim 2, wherein: The inner edge of the mounting cavity (5) is provided with a plurality of circular grooves (7), and the circular grooves (7) are located at the middle position between the adjacent two first spline grooves (6).

4. A self-adjusting bulb coupler as defined in claim 3, wherein: The connecting head (9) is semicircular conical, and the surface of the connecting head (9) is provided with a plurality of second spline grooves (13), and the second spline grooves (13) are connected with the adjacent protrusions between the first spline grooves (6).

5. A self-adjusting bulb coupler as defined in claim 4, wherein: The surface of the connecting head (9) is provided with a plurality of sliding beads (14), and the sliding beads (14) are located at the middle position of the second spline grooves (13), the diameter of the sliding beads (14) is smaller than the diameter of the sliding connection in the circular groove (7), and the sliding beads (14) are slidingly connected in the circular groove (7).

6. A self-adjusting bulb coupler as defined in claim 1, wherein: The outer side of the second mounting ring (10) is provided with a mounting protrusion (11), and the mounting protrusion (11) is connected with the first mounting ring (4) through the bolt (12).

7. A self-adjusting bulb coupler as defined in claim 1, wherein: The surface of the second connecting shaft (8) is provided with a plurality of hollow grooves (15), the hollow grooves (15) are long strip-shaped, and the adjacent two hollow grooves (15) are staggered.

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