A ratchet spring compression mechanism for a synchronous automatic clutch

Abstract

A ratchet spring pressing mechanism for synchronous automatic clutch relates to the technical field of synchronous automatic clutch.The present application solves the problem that the gap between the ratchet and the output gear ring due to machining error of the existing synchronous automatic clutch not only causes the angular installation error of the ratchet and the poor stress state, but also causes the repeated axial displacement of the ratchet during the operation of the clutch, and further aggravates the problems of vibration, noise, part collision and the like. The present application is provided with a plurality of spring mounting holes which are uniformly distributed along the circumference on the end surface of the output gear ring in contact with the ratchet and the relay gear ring, a butterfly spring is arranged at the bottom of each spring mounting hole, a pressing pin is arranged above the butterfly spring, a hollow screw plug is sleeved on the tail of the pressing pin, the hollow screw plug is fixed on the spring mounting hole through the thread, and the two sides of the pressing pin are in contact with the butterfly spring and the ratchet respectively. The present application can fix the position of the ratchet through the spring elastic force, ensure the installation accuracy of the ratchet, the uniformity of the stress and the stability of the equipment operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of synchronous automatic clutch, and particularly relates to a ratchet spring pressing mechanism for a synchronous automatic clutch. BACKGROUND

[0002] At present, the synchronous automatic clutch has been widely applied in various fields such as ships, chemical industry, metallurgy and thermal power, and the working principle of the synchronous automatic clutch is to realize the engagement and disengagement process of the clutch driven by the speed difference through the mechanical structure. The synchronous automatic clutch has a large number of internal parts, a complex structure and a compact space, and has high requirements for machining precision and assembly precision.

[0003] During the assembly of the synchronous automatic clutch, the end faces of the ratchet and the relay gear ring should be in contact with the end face of the output gear ring at the same time in theory, and the relay gear ring and the output gear ring are rigidly connected through bolts and pins. Due to the machining error, the axial size of the ratchet cannot reach the theoretical value, and the size tolerance is usually lower. A gap will be generated between the end faces of the ratchet and the output gear ring, and the value of the gap is the difference between the machining errors of the axial sizes of the ratchet and the relay gear ring. The gap between the ratchet and the output gear ring will not only cause the angular installation error of the ratchet and the poor stress state, but also cause the repeated axial displacement of the ratchet during the operation of the clutch, and further aggravate the problems such as vibration, noise, part collision and the like, which should be avoided. SUMMARY

[0004] The present application aims to solve the problems that the existing synchronous automatic clutch has a gap between the ratchet and the output gear ring due to the machining error, which not only causes the angular installation error of the ratchet and the poor stress state, but also causes the repeated axial displacement of the ratchet during the operation of the clutch, and further aggravates the problems such as vibration, noise, part collision and the like, and further provides a ratchet spring pressing mechanism for a synchronous automatic clutch.

[0005] The technical scheme of the present application is as follows:

[0006] A ratchet spring compression mechanism for synchronous automatic clutch, comprising a ratchet wheel 220, a relay gear ring 230, an output gear ring 210 and a plurality of fasteners 240, the ratchet wheel 220 is installed between the relay gear ring 230 and the output gear ring 210, the relay gear ring 230 and the output gear ring 210 are connected through the plurality of fasteners 240, further comprising a plurality of butterfly springs 212, a plurality of compression pins 213 and a plurality of hollow screw plugs 214, a plurality of spring mounting holes 211 are evenly distributed on the end surface of the output gear ring 210 in contact with the ratchet wheel 220 and the relay gear ring 230, each spring mounting hole 211 is provided with a butterfly spring 212 at the bottom, the compression pin 213 is installed above the butterfly spring 212, and the hollow screw plug 214 is sleeved on the tail of the compression pin 213, and the hollow screw plug 214 is fixed on the spring mounting hole 211 through threads, and the compression pin 213 is in contact with the butterfly spring 212 and the ratchet wheel 220 on both sides.

[0007] Further, the spring mounting hole 211 is a two-section stepped hole, one section is a small-diameter light hole, and the other section is a large-diameter threaded hole.

[0008] Further, the spring mounting hole 211 is located on the end surface of the output gear ring 210 in contact with the relay gear ring 230, and is located in the area where the output gear ring 210 and the ratchet wheel 220 overlap in the radial dimension.

[0009] Further, the compression pin 213 is a two-section columnar structure with a through hole in the center, the head section of the compression pin 213 has a smaller diameter than the spring mounting hole 211, and the tail section of the compression pin 213 has a smaller diameter than the head section.

[0010] Further, the hollow screw plug 214 has a threaded structure on the outside, which limits the one-way axial displacement of the compression pin 213 and provides an initial compression amount for the butterfly spring 212 through the threaded connection with the spring mounting hole 211.

[0011] Further, the hollow screw plug 214 has a through hole in the center to realize the axial displacement of the compression pin 213.

[0012] Further, the number of spring mounting holes 211 is eight, and the eight spring mounting holes 211 are evenly distributed on the end surface of the output gear ring 210, and the pitch circle is located in the area where the output gear ring 210 and the ratchet wheel 220 overlap in the radial dimension.

[0013] Compared with the prior art, the present application has the following effects:

[0014] 1. The ratchet spring pressing mechanism for synchronous automatic clutch of the present application can fix the position of the ratchet through the spring elastic force, ensure the installation accuracy of the ratchet, the disc spring 212 of the present application is subjected to axial pressure to produce deformation and further produce elastic force, the elastic force is transmitted to the end face of the ratchet 220 through the pressing pin 213, the position of the ratchet 220 is fixed and the installation accuracy is ensured. The disc spring 212 of the present application uniformly distributed along the circumference provides the ratchet 220 with uniform pressing force, thereby ensuring the uniformity of the stress of the ratchet and the stability of the operation of the equipment.

[0015] 2. The ratchet spring pressing mechanism for synchronous automatic clutch of the present application has simple processing technology, compact structure and self-adaptive function. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall installation sectional view of the ratchet spring pressing mechanism for synchronous automatic clutch of the present application;

[0017] Figure 2 is the end face view of the spring mounting hole distribution state on the output gear ring of the present application;

[0018] Figure 3 is the sectional view of the free state of the spring mounting hole only installing the disc spring of the present application;

[0019] Figure 4 is the sectional view of the free state of the spring mounting hole installing the disc spring of the present application;

[0020] Figure 5 is the sectional view of the working state of the spring mounting hole installing the disc spring of the present application.

[0021] In the figure: 210 is the output gear ring; 220 is the ratchet; 230 is the relay gear ring; 240 is the fastener; 211 is the spring mounting hole; 212 is the disc spring; 213 is the pressing pin; 214 is the hollow screw plug. DETAILED DESCRIPTION

[0022] Specific implementation one: combined with Figures 1 to 5The embodiment is described, and the embodiment is a ratchet spring pressing mechanism for a synchronous automatic clutch, which comprises a ratchet wheel 220, a relay gear ring 230, an output gear ring 210 and a plurality of fasteners 240, the ratchet wheel 220 is installed between the relay gear ring 230 and the output gear ring 210, the relay gear ring 230 and the output gear ring 210 are connected through the plurality of fasteners 240, and the ratchet spring pressing mechanism further comprises a plurality of butterfly springs 212, a plurality of pressing pins 213 and a plurality of hollow screw plugs 214, a plurality of spring mounting holes 211 are uniformly distributed in a circle and are opened on an end surface of the output gear ring 210 in contact with the ratchet wheel 220 and the relay gear ring 230, each spring mounting hole 211 is provided with a butterfly spring 212 at the bottom, the pressing pin 213 is installed above the butterfly spring 212, the hollow screw plug 214 is sleeved on the tail of the pressing pin 213, the hollow screw plug 214 is fixed on the spring mounting hole 211 through threads, and the pressing pin 213 is in contact with the butterfly spring 212 and the ratchet wheel 220 on both sides, respectively, the ratchet wheel 220 is pressed through the elastic force generated after the deformation of the butterfly spring 212, and the accuracy of the installation position of the ratchet wheel 220 is ensured.

[0023] In the embodiment, the fastener 240 is a bolt and a pin, the output gear ring 210 and the relay gear ring 230 are connected through the bolt and the pin, and a rigid connection is formed. The ratchet wheel 220 is axially positioned through the contact of both ends with the output gear ring 210 and the relay gear ring 230.

[0024] Figure 1 In the embodiment, the structure of the output gear ring 210, the ratchet wheel 220 and the relay gear ring 230 is simplified, and only the assembly relationship between parts is embodied, after the contour size of the output gear ring 210 is processed, the spring mounting hole 211 is uniformly distributed in a circle and is processed on the end surface of the output gear ring 210 in contact with the ratchet wheel 220 and the relay gear ring 230, the radial dimension of the region coinciding with the ratchet wheel 220 is processed, a flat-bottomed light hole is first processed, the flat-bottomed light hole is used for accommodating the head of the butterfly spring 212 and the pressing pin 213, and a threaded hole with a slightly larger diameter is processed on the basis of the light hole, and the threaded hole is used for fixing the hollow screw plug 214.

[0025] Specific implementation method two: combined with Figure 1 , Figure 3 , Figure 4 and Figure 5 The embodiment is described, and the spring mounting hole 211 of the embodiment is a two-section stepped hole, one section is a light hole with a smaller diameter, and the other section is a threaded hole with a larger diameter. In this way, the light hole is used for accommodating the head of the butterfly spring 212 and the pressing pin 213, and the threaded hole is used for fixing the hollow screw plug 214. The other components and connection relationships are the same as those in the specific implementation method one.

[0026] Specific implementation method three: combined with Figure 1 , Figure 2 and Figure 5In this embodiment, the spring mounting hole 211 is located on the end surface of the output gear ring 210 in contact with the relay gear ring 230, and in the area where the output gear ring 210 and the ratchet wheel 220 overlap in radial dimension. In this way, the spring force of the flat spring 212 can be transmitted to the ratchet wheel 220 through the compression pin 213. The other components and connection relationships are the same as those in Embodiment 1 or 2.

[0027] Embodiment Four: Combination Figure 1 , Figure 4 and Figure 5 In this embodiment, the compression pin 213 is a two-section cylindrical structure with a through hole in the center. The head section of the compression pin 213 has a diameter smaller than that of the spring mounting hole 211, and the tail section of the compression pin 213 has a diameter smaller than that of the head section. In this way, the head section of the compression pin 213 has a diameter slightly smaller than that of the spring mounting hole 211, and the end surface is in contact with the flat spring 212. The tail section of the compression pin 213 has a diameter smaller than that of the head section, and the outer wall is in contact with the inner hole of the hollow plug 214, and the end surface is in contact with the ratchet wheel 220. Under the action of the spring force of the flat spring 212 and the pressure of the ratchet wheel 220, the compression pin 213 can move axially along the inner hole of the hollow plug 214. The other components and connection relationships are the same as those in Embodiment 1, 2 or 3.

[0028] Embodiment Five: Combination Figure 1 , Figure 4 and Figure 5 In this embodiment, the hollow plug 214 has a threaded structure on the outside, which limits the one-way axial displacement of the compression pin 213 and provides an initial compression amount for the flat spring 212 through the threaded connection with the spring mounting hole 211. In this way, Figure 1 In this embodiment, the flat spring 212 is installed in the spring mounting hole 211 after machining is completed. At this time, the flat spring 212 is in a free state, ignoring its own gravity, and the deformation amount is zero. Figure 4 In this embodiment, the hollow plug 214 is fixed to the spring mounting hole 211 through threaded connection, and the end surface is in contact with the threaded hole bottom surface and the compression pin 213, providing an initial deformation amount and pre-tightening force for the flat spring 212. The other components and connection relationships are the same as those in Embodiment 1, 2, 3 or 4.

[0029] Embodiment Six: Combination Figure 5 , Figure 3 and Figure 4 In this embodiment, the hollow plug 214 has a through hole in the center to realize the axial displacement of the compression pin 213. The other components and connection relationships are the same as those in Embodiment 1, 2, 3, 4 or 5.

[0030] Embodiment Seven: Combination Figure 1In this embodiment, there are eight spring mounting holes 211, which are evenly distributed on the end face of the output gear ring 210. The pitch circle is located in the area where the radial dimensions of the output gear ring 210 and the ratchet 220 coincide. With this arrangement, the spring force is transmitted to the ratchet 220 through the clamping pin 213, and the circumferentially distributed disc springs 212 provide a uniform clamping force to the ratchet 220. Other components and connections are the same as in specific embodiments one, two, three, four, five, or six.

[0031] Working principle

[0032] Combination Figure 4 Figure 5 Figure 2 Figures 1 to 5 This invention explains the working principle of a ratchet spring clamping mechanism for a synchronous automatic clutch:

[0033] The installation sequence of the ratchet spring clamping mechanism is as follows: fix the output gear ring 210 vertically to the ground on a plane, install the disc spring 212, clamping pin 213 and hollow screw plug 214 in the spring mounting hole 211, place the ratchet 220 vertically on the end face of the output gear ring 210, install the relay gear ring 230, connect the relay gear ring 230 and the output gear ring 210 through the fastener 240, and press the ratchet 220 on the end face of the output gear ring 210. The disc spring 212 deforms under axial pressure and generates elastic force. The elastic force is transmitted to the end face of the ratchet 220 through the clamping pin 213, fixing the position of the ratchet 220 and ensuring its installation accuracy.

[0034] With all parts installed, the ratchet spring clamping mechanism is in operation. The disc spring 212 is compressed under the axial force of the ratchet 220. The elastic force of the disc spring 212 is transmitted to the ratchet 220 through the clamping pin 213. The disc springs 212, which are evenly distributed along the circumference, provide a uniform clamping force to the ratchet 220, and the axial dimension of the clamping pin 213 compensates for the gap between the output toothed ring 210 and the ratchet 220.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ratchet spring clamping mechanism for a synchronous automatic clutch, comprising a ratchet (220), a relay gear ring (230), an output gear ring (210), and a plurality of fasteners (240), wherein the ratchet (220) is mounted between the relay gear ring (230) and the output gear ring (210), and the relay gear ring (230) and the output gear ring (210) are connected by the plurality of fasteners (240), characterized in that: It also includes multiple butterfly springs (212), multiple clamping pins (213), and multiple hollow screw plugs (214). Multiple spring mounting holes (211) are evenly distributed around the circumference on the end face of the output gear ring (210) that contacts the ratchet (220) and the relay gear ring (230). Each spring mounting hole (211) has a butterfly spring (212) at the bottom. The clamping pin (213) is installed above the butterfly spring (212). The hollow screw plug (214) is sleeved on the tail of the clamping pin (213). The hollow screw plug (214) is fixed to the spring mounting hole (211) by threads. The two sides of the clamping pin (213) contact the butterfly spring (212) and the ratchet (220) respectively.

2. The ratchet spring clamping mechanism for a synchronous automatic clutch according to claim 1, characterized in that: The spring mounting hole (211) is a two-stage stepped hole, one stage being a small-diameter smooth hole and the other stage being a large-diameter threaded hole.

3. A ratchet spring clamping mechanism for a synchronous automatic clutch according to claim 1 or 2, characterized in that: The spring mounting hole (211) is located on the end face where the output gear ring (210) contacts the relay gear ring (230), and is located in the area where the radial dimensions of the output gear ring (210) and the ratchet (220) overlap.

4. The ratchet spring clamping mechanism for a synchronous automatic clutch according to claim 3, characterized in that: The clamping pin (213) is a two-section columnar structure with a through hole in the center. The diameter of the head shaft section of the clamping pin (213) is smaller than the diameter of the spring mounting hole (211), and the diameter of the tail shaft section of the clamping pin (213) is smaller than the diameter of the head shaft section.

5. A ratchet spring clamping mechanism for a synchronous automatic clutch according to claim 1 or 4, characterized in that: The hollow screw plug (214) has a threaded structure on the outside, which limits the unidirectional axial displacement of the clamping pin (213) and provides initial compression to the disc spring (212) through the threaded connection with the spring mounting hole (211).

6. A ratchet spring clamping mechanism for a synchronous automatic clutch according to claim 5, characterized in that: The hollow screw plug (214) has a through hole in the center for axial displacement of the clamping pin (213).

7. A ratchet spring clamping mechanism for a synchronous automatic clutch according to claim 6, characterized in that: There are eight spring mounting holes (211), which are evenly distributed on the end face of the output gear ring (210). The pitch circle is located in the area where the radial dimensions of the output gear ring (210) and the ratchet (220) coincide.

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