Decoupling structure of electromagnetic clutch

Abstract

The decoupling structure comprises the electromagnetic clutch, an upper shaft rod is fixedly connected to the interior of the electromagnetic clutch, a conical rod is arranged at the bottom of the upper shaft rod, tooth holes are formed in the bottom of the outer wall of the conical rod at equal intervals, and limiting teeth are movably connected to the inner walls of the tooth holes. A first compression spring is arranged in the tooth hole, the two ends of the first compression spring abut against the conical rod and the limiting tooth correspondingly, and a sleeve is arranged outside the conical rod. The utility model relates to the technical field of automobile parts, and solves the problems that a decoupling structure of an electromagnetic clutch in the prior art is a cylindrical roller friction structure, the structure is more complex, the use stability and the service life are influenced, and the technical threshold and the production cost are higher.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a decoupling structure of an electromagnetic clutch. Background Art

[0002] An electromagnetic clutch is a clutch that generates a clamping force using electromagnetic force. It uses the principle of electromagnetic induction to enable two rotating components in a mechanical transmission system to be connected or separated from the driven component without the active component stopping rotation. It can be used to control the starting, reversing, speed regulation and braking of the machine. In the prior art, the decoupling structure of the electromagnetic clutch is a cylindrical roller friction structure, which has a relatively complex structure, affecting the stability and service life of use, and has high technical barriers and production costs. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a decoupling structure for an electromagnetic clutch, which solves the problem in the prior art that the decoupling structure of the electromagnetic clutch is a cylindrical roller friction structure, which has a relatively complex structure, affects the stability and service life of use, and has high technical thresholds and production costs.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a decoupling structure of an electromagnetic clutch, including an electromagnetic clutch, an upper shaft rod is fixedly connected to the inside of the electromagnetic clutch, a tapered rod is arranged at the bottom of the upper shaft rod, tooth holes are equidistantly opened at the bottom of the outer wall of the tapered rod, the inner wall of the tooth hole is movably connected with a limiting tooth, a first compression spring is arranged inside the tooth hole, the two ends of the first compression spring are respectively tightly pressed against the tapered rod and the limiting tooth, a sleeve is arranged outside the tapered rod, a lower shaft rod is arranged at the bottom of the sleeve, a tapered shaft hole is arranged inside the sleeve, the tapered rod is cooperatively connected to the tapered shaft hole, spline tooth grooves are equidistantly arranged at the bottom of the inner wall of the tapered shaft hole, and the limiting tooth is cooperatively connected to the spline tooth grooves.

[0005] Preferably, a cylindrical rod is provided on the side where the upper shaft rod and the tapered rod are close to each other, and mounting holes are opened at equal intervals on the outer wall of the cylindrical rod, and a second compression spring is provided inside the mounting hole, and a clamping block is fixedly connected to one end of the second compression spring close to the sleeve, and a ball is movably connected to the side of the clamping block close to the sleeve, and a limiting ring is sleeved on the outer wall of the cylindrical rod, and the ball is cooperatively connected to the sleeve.

[0006] Preferably, an inner hole is provided inside the tooth hole, and a positioning rod is movably connected to the inner wall of the inner hole, and the positioning rod is fixedly connected to the limiting tooth.

[0007] Preferably, an annular groove is provided at the bottom of the tapered shaft hole, and the limiting tooth is cooperatively connected with the annular groove.

[0008] Preferably, guiding inclined surfaces are provided on both sides of the outer wall of the limiting tooth.

[0009] The utility model provides a decoupling structure of an electromagnetic clutch. It has the following beneficial effects: the decoupling structure of the electromagnetic clutch, through the cooperation among the electromagnetic clutch, the upper shaft rod, the tapered rod, the tooth hole, the limit tooth, the first compression spring, the sleeve, the lower shaft rod, the tapered shaft hole and the spline tooth groove, by inserting the tapered rod into the sleeve, the electromagnetic clutch is controlled to move the sleeve and the lower shaft rod, the limit and release between the limit tooth and the spline tooth groove are controlled, the coupling and decoupling of the clutch can be switched, and then the working state of the clutch can be controlled, so that the decoupling structure of the electromagnetic clutch is simpler, which helps to improve the stability and service life of the equipment components, and is convenient for the assembly and maintenance of the equipment components, which helps to reduce the production cost and technical threshold of the electromagnetic clutch.

[0010] Through the cooperation among the upper shaft rod, tapered rod, sleeve, cylindrical rod, mounting hole, second compression spring, clamping block, ball and limiting collar, under the action of the second compression spring and the clamping block, the ball and the limiting hole of the limiting collar are kept in tight contact. During the coupling and decoupling process of the clutch, the ball contacts the inner wall of the sleeve and rolls under the friction of the inner wall of the sleeve, which can avoid friction or direct collision between the sleeve and the cylindrical rod due to mechanical vibration, reduce the wear of the sleeve and the cylindrical rod, and thus extend the service life of the equipment, which helps to improve the stability and smoothness of the shaft rod rotation, coupling and decoupling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the appearance of the electromagnetic clutch, the cone rod and the limit gear in the utility model;

[0013] Figure 3 This is a cross-sectional view of the appearance of the sleeve, the tapered shaft hole and the spline tooth groove in the utility model;

[0014] Figure 4 It is a schematic diagram of the appearance of the limiting tooth, the first compression spring and the positioning rod in the utility model;

[0015] Figure 5 for Figure 1 A partial enlarged view of the middle A area;

[0016] Figure 6 for Figure 1 A partial enlarged view of area B.

[0017] In the figure: 1, electromagnetic clutch; 2, upper shaft; 3, tapered rod; 4, tooth hole; 5, limit tooth; 6, first compression spring; 7, sleeve; 8, lower shaft; 9, tapered shaft hole; 10, spline tooth groove; 11, cylindrical rod; 12, mounting hole; 13, second compression spring; 14, tightening block; 15, ball; 16, limit collar; 17, inner hole; 18, positioning rod; 19, annular groove; 20, guide slope. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the prior art, the decoupling structure of the electromagnetic clutch is a cylindrical roller friction structure, which has a relatively complex structure, affecting the stability and service life of use, and has high technical barriers and production costs.

[0020] In view of this, the utility model provides a decoupling structure of an electromagnetic clutch, through the cooperation among the electromagnetic clutch, the upper shaft rod, the tapered rod, the tooth hole, the limit tooth, the first compression spring, the sleeve, the lower shaft rod, the tapered shaft hole and the spline tooth groove, by inserting the tapered rod into the sleeve, the electromagnetic clutch is controlled to move the sleeve and the lower shaft rod, the limit and release between the limit tooth and the spline tooth groove are controlled, the coupling and decoupling of the clutch are realized, and then the working state of the clutch is controlled, the decoupling structure of the electromagnetic clutch is simplified, the stability and service life of the equipment components are improved, and the equipment components are easy to assemble and maintain, thereby reducing the production cost and technical threshold.

[0021] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0022] Depend on Figure 1-6It can be seen that a decoupling structure of an electromagnetic clutch includes an electromagnetic clutch 1, an upper shaft rod 2 is fixedly connected inside the electromagnetic clutch 1, a tapered rod 3 is arranged at the bottom of the upper shaft rod 2, tooth holes 4 are equidistantly opened at the bottom of the outer wall of the tapered rod 3, and the inner wall of the tooth hole 4 is movably connected with a limiting tooth 5, and a first compression spring 6 is arranged inside the tooth hole 4, and the first compression spring 6 gives an elastic force to the limiting tooth 5 away from the tapered rod 3, and the first compression spring 6 gives an elastic force to the tapered rod 3 away from the limiting tooth 5, and the two ends of the first compression spring 6 are respectively pressed against the tapered rod 3 and the limiting tooth 5, a sleeve 7 is arranged outside the tapered rod 3, a lower shaft rod 8 is arranged at the bottom of the sleeve 7, and a tapered shaft hole 9 is arranged inside the sleeve 7, the tapered rod 3 is matched and connected with the tapered shaft hole 9, and spline tooth grooves 10 are equidistantly arranged at the bottom of the inner wall of the tapered shaft hole 9, and the limiting tooth 5 is matched and connected with the spline tooth grooves 10;

[0023] In the specific implementation process, it is worth pointing out that, through the cooperation between the electromagnetic clutch 1 and the upper shaft rod 2, the upper shaft rod 2 penetrates into the interior of the electromagnetic clutch 1 and is fixed by the bearing, so as to realize the installation connection between the electromagnetic clutch 1 and the upper shaft rod 2, and ensure the free rotation of the upper shaft rod 2. Through the cooperation between the upper shaft rod 2, the cone rod 3, the tooth hole 4, the limit tooth 5 and the first compression spring 6, the upper shaft of the electromagnetic clutch decoupling structure is formed. The limit tooth 5 is arranged in the multiple tooth holes 4 at the end of the cone rod 3, and under the action of the first compression spring 6 , so that the limiting tooth 5 always has an outward expansion force, the first compression spring 6 gives the limiting tooth 5 an elastic force away from the tapered rod 3, and the first compression spring 6 gives the tapered rod 3 an elastic force away from the limiting tooth 5. Through the cooperation between the sleeve 7, the lower shaft rod 8, the tapered shaft hole 9 and the spline tooth groove 10, the lower shaft of the electromagnetic clutch decoupling structure is composed. A tapered shaft hole 9 adapted to the tapered rod 3 is arranged inside the sleeve 7, and a plurality of spline tooth grooves 10 matched with the limiting tooth 5 are opened at the bottom of the tapered shaft hole 9. Through the electromagnetic clutch 1, the upper shaft rod 2, the tapered rod 3, the gear The cooperation between the hole 4, the limit tooth 5, the first compression spring 6, the sleeve 7, the lower shaft rod 8, the tapered shaft hole 9 and the spline tooth groove 10 is achieved by inserting the tapered rod 3 into the sleeve 7. When the electromagnetic clutch 1 is powered off, the sleeve 7 and the lower shaft rod 8 move downward, and the limit between the limit tooth 5 and the spline tooth groove 10 is released. When the upper shaft rotates, the lower shaft will not rotate synchronously, and the clutch is in a decoupled state. When the electromagnetic clutch 1 is powered on, the sleeve 7 and the lower shaft rod 8 move upward, so that the limit tooth 5 is stuck in the spline tooth groove 10 to form a limit, so that the lower shaft and the upper shaft can move forward. The electromagnetic clutch 1 is controlled to move the sleeve 7 and the lower shaft 8, and the limit and release between the limit teeth 5 and the spline tooth groove 10 are controlled to realize the coupling and decoupling of the clutch, thereby realizing the control of the working state of the clutch, simplifying the decoupling structure of the electromagnetic clutch, improving the stability and service life of the equipment components, and facilitating the assembly and maintenance of the equipment components, reducing the production cost and technical threshold. The specific model of the electromagnetic clutch 1 is not limited, and it can meet the use requirements;

[0024] Furthermore, a columnar rod 11 is provided on one side of the upper shaft rod 2 and the tapered rod 3 close to each other, and mounting holes 12 are equidistantly provided on the outer wall of the columnar rod 11, and a second compression spring 13 is provided inside the mounting hole 12, and the second compression spring 13 gives elastic force to the clamping block 14 close to the sleeve 7, and the end of the second compression spring 13 close to the sleeve 7 is fixedly connected to the clamping block 14, and the side of the clamping block 14 close to the sleeve 7 is movably connected to the ball 15, and the outer wall of the columnar rod 11 is sleeved with a limiting collar 16, and the limiting collar 16 is used to limit the ball 15 to prevent the ball 15 from escaping from the mounting hole 12, and the ball 15 is connected with the sleeve 7 in a cooperative manner;

[0025] In the specific implementation process, it is worth pointing out that the second compression spring 13 gives the clamping block 14 an elastic force close to the sleeve 7, and the limiting ring 16 is used to limit the ball 15 to prevent the ball 15 from escaping from the mounting hole 12. Through the cooperation among the cylindrical rod 11, the mounting hole 12, the second compression spring 13, the clamping block 14, the ball 15 and the limiting ring 16, the ball 15 protrudes from the limiting hole of the limiting ring 16 through the elastic force of the second compression spring 13 and the clamping block 14, and the limiting hole of the limiting ring 16 limits the ball 15. When the ball 15 is subjected to impact force, the ball 15 can be buffered under the elastic force of the second compression spring 13 to reduce the damage caused by the impact force. The installation hole 12, the second compression spring 13, the pressing block 14, the ball 15 and the limiting ring 16 cooperate with each other. Under the action of the second compression spring 13 and the pressing block 14, the ball 15 and the limiting hole of the limiting ring 16 are kept in close contact. During the coupling and decoupling process of the clutch, the ball 15 contacts the inner wall of the sleeve 7 and rolls under the friction of the inner wall of the sleeve 7. When the ball 15 is subjected to impact force, the ball 15 can be buffered under the elastic force of the second compression spring 13, reducing the damage of the impact force to the sleeve 7 and the cylindrical rod 11, avoiding friction or direct collision between the sleeve 7 and the cylindrical rod 11 due to mechanical vibration, reducing the wear of the sleeve 7 and the cylindrical rod 11, extending the service life of the equipment, and improving the stability and smoothness of the rotation and decoupling process;

[0026] Furthermore, an inner hole 17 is provided inside the tooth hole 4, and a positioning rod 18 is movably connected to the inner wall of the inner hole 17, and the positioning rod 18 is fixedly connected to the limiting tooth 5;

[0027] In the specific implementation process, it is worth pointing out that, through the cooperation among the tapered rod 3, the tooth hole 4, the limiting tooth 5, the first compression spring 6, the inner hole 17 and the positioning rod 18, the limiting tooth 5 is limited and guided in the inner hole 17 by the positioning rod 18, and the first compression spring 6 is sleeved on the outer side of the positioning rod 18 to ensure the stable movement of the limiting tooth 5 in the tooth hole 4, and prevent the limiting tooth 5 and the first compression spring 6 from being offset or stuck during the movement, thereby further improving the stability and reliability of the electromagnetic clutch decoupling structure;

[0028] Furthermore, an annular groove 19 is provided at the bottom of the tapered shaft hole 9, and the limiting tooth 5 is matched and connected with the annular groove 19;

[0029] In the specific implementation process, it is worth pointing out that, through the cooperation among the tapered rod 3, the limiting teeth 5, the sleeve 7, the tapered shaft hole 9 and the annular groove 19, by processing a groove of an annular structure above the spline tooth groove 10, when the clutch is in the decoupling state, the limiting teeth 5 are located above the spline tooth groove 10, and when the limiting teeth 5 are at the outermost side, there is a gap between the limiting teeth 5 and the annular groove 19, ensuring that the upper shaft and the lower shaft can smoothly rotate relative to each other without interfering with each other when the clutch is in the decoupling state. At the same time, the annular groove 19 can also limit the limiting teeth 5 to prevent the tapered rod 3 from being separated from the tapered shaft hole 9, thereby improving the safety of the electromagnetic clutch decoupling structure;

[0030] Furthermore, both sides of the outer wall of the limiting tooth 5 are provided with guiding inclined surfaces 20;

[0031] During the specific implementation process, it is worth pointing out that by setting the guide bevels 20 on both sides of the limit tooth 5, when the limit tooth 5 is engaged or disengaged with the spline tooth groove 10 during movement, the guide bevel 20 can guide the limit tooth 5 to smoothly enter or leave the spline tooth groove 10, thereby reducing the jamming or wear caused by improper engagement, and further improving the smoothness and durability of the electromagnetic clutch decoupling structure.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0033] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A decoupling structure of an electromagnetic clutch, comprising an electromagnetic clutch (1), characterized in that: An upper shaft rod (2) is fixedly connected to the interior of the electromagnetic clutch (1), a conical rod (3) is arranged at the bottom of the upper shaft rod (2), tooth holes (4) are equidistantly provided at the bottom of the outer wall of the conical rod (3), and the inner wall of the tooth hole (4) is movably connected to a limit tooth (5), a first compression spring (6) is arranged inside the tooth hole (4), and the two ends of the first compression spring (6) are respectively tightly pressed against the conical rod (3) and the limit tooth (5), a sleeve (7) is arranged outside the conical rod (3), a lower shaft rod (8) is arranged at the bottom of the sleeve (7), a conical shaft hole (9) is arranged inside the sleeve (7), the conical rod (3) is cooperatively connected to the conical shaft hole (9), and spline tooth grooves (10) are equidistantly provided at the bottom of the inner wall of the conical shaft hole (9), and the limit tooth (5) is cooperatively connected to the spline tooth groove (10).

2. The decoupling structure of an electromagnetic clutch according to claim 1, characterized in that: A columnar rod (11) is arranged on one side where the upper shaft rod (2) and the conical rod (3) are close to each other; mounting holes (12) are equidistantly provided on the outer wall of the columnar rod (11); a second compression spring (13) is arranged inside the mounting hole (12); a clamping block (14) is fixedly connected to one end of the second compression spring (13) close to the sleeve (7); a ball (15) is movably connected to the side of the clamping block (14) close to the sleeve (7); a limiting ring (16) is sleeved on the outer wall of the columnar rod (11); and the ball (15) is cooperatively connected to the sleeve (7).

3. The decoupling structure of an electromagnetic clutch according to claim 1, characterized in that: An inner hole (17) is provided inside the tooth hole (4), a positioning rod (18) is movably connected to the inner wall of the inner hole (17), and the positioning rod (18) is fixedly connected to the limiting tooth (5).

4. The decoupling structure of an electromagnetic clutch according to claim 1, characterized in that: An annular groove (19) is provided at the bottom of the tapered shaft hole (9), and the limiting tooth (5) is cooperatively connected to the annular groove (19).

5. The decoupling structure of an electromagnetic clutch according to claim 1, characterized in that: Guide slopes (20) are provided on both sides of the outer wall of the limiting tooth (5).

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