CN209818578U - Variable stress spring pin coupling - Google Patents

Abstract

The utility model discloses an elasticity pin shaft coupling of variable stress, including half left shaft coupling, half right shaft coupling, nylon pin and pin cover plate, half left shaft coupling and half right shaft coupling interconnect's link all is provided with the pin hole, half epaxial pin hole in a left side with half epaxial pin hole in the right side corresponds the setting so that the nylon pin runs through half epaxial pin hole in a left side with half left shaft coupling and half right shaft coupling are fixed behind the epaxial pin hole in the right side, nylon pin length direction's intermediate position is provided with the annular groove, the pin cover plate sets up half left shaft coupling and half right shaft coupling's both sides are in order to fix the nylon pin in the pin hole. The utility model discloses a shaft coupling has characteristics with adjustable maximum stress.

Description

Variable stress spring pin coupling

Technical Field

The utility model relates to a coupler. More specifically, the present invention relates to a variable stress elastomeric pin coupling.

Background

The spiral body of the train coal unloading groove #4 spiral car unloader of the Datang Guiguan Heshan Electricity generation Limited company adopts a middle driving mode of a spiral rotating mechanism of a double-spiral mechanism. The spiral rotating mechanism mainly comprises a spiral bevel gear reduction box, a cross beam, a spiral body, a motor and a speed reducer. The beam adopts a box-shaped structure, and the rigidity is high. The spiral body is in a three-head bidirectional blade structure with a large diameter and a large helical angle; the driving power of the spiral rotating mechanism is high, and the coal unloading is fast; when the screw driver works, the motor transmits torque to the input shaft of the gear box through the reduction gearbox to drive the bevel gear, and transmits the torque to the screw body to realize screw rotation, so that the aim of unloading materials is fulfilled. Because the spiral rotating mechanism has large driving power and deep coal unloading, the reduction gearbox is easy to damage even if nylon pins are adopted for connection under the heavy load condition, and the phenomenon of damage of the reduction gearbox cannot be completely solved even if the parameters of the motor thermal relay are adjusted.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.

It is yet another object of the present invention to provide a variable stress spring pin coupling which avoids damage to the transmission case when the stress is too great by changing the stress experienced by the nylon pin.

To achieve these objects and other advantages in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a variable stress resilient pin coupling, including a left half coupling, a right half coupling, a nylon pin, and a pin cover,

half left shaft coupling and half right shaft coupling interconnect's link all is provided with the pinhole, the epaxial pinhole of half left shaft coupling with the epaxial pinhole of half right shaft coupling corresponds the setting so that the nylon pin runs through epaxial pinhole of half left shaft coupling with half left shaft coupling and half right shaft coupling are connected fixedly behind the epaxial pinhole of half right shaft coupling, nylon pin length direction's intermediate position is provided with the annular groove, the setting of pin apron is in the both sides of half left shaft coupling and half right shaft coupling are in order to fix the nylon pin at the pinhole of pin.

Preferably, the connecting ends of the left half coupling and the right half coupling which are connected with each other are disc-shaped, and the pin holes are uniformly arranged along the circumferential direction of the connecting ends of the left half coupling and the right half coupling which are connected with each other. The even cylindric lock that sets up of circumferential direction through left half shaft coupling and right half shaft coupling interconnect's link makes the even atress of nylon cylindric lock in the cylindric lock, avoids appearing the atress uneven and appear the rupture easily.

Preferably, 6 to 8 pin holes are uniformly arranged in the circumferential direction of the connecting end of the left half coupling and the right half coupling which are connected with each other. 6-8 pin holes are uniformly arranged at the connecting end, so that the connecting ends of the left half coupling and the right half coupling are uniformly stressed.

Preferably, the pintle cover plate is circular. The nylon pin is fixed in the pin hole through the annular pin cover plate, so that the nylon pin is prevented from sliding out of the pin hole.

Preferably, the diameter of the nylon pintle is the same size as the diameter of the pintle hole.

Preferably, one side that left half shaft coupling and right half shaft coupling are connected is provided with cylindrical constant head tank, the flange cover of right half shaft coupling is established in the constant head tank. Through setting up cylindrical constant head tank, be convenient for quick with the link location of right semi-axis on the link of left semi-axis.

Preferably, the connecting ends of the left half coupling and the right half coupling are uniformly provided with first bolt holes, and the pin cover plate is provided with second bolt holes corresponding to the first bolt holes so as to fix the pin cover plate on two sides of the left half coupling and the right half coupling respectively through bolts. The pin cover plate is fixed on two sides of the left half coupling shaft and the right half coupling shaft through bolts, and the pin cover plate has the characteristic of convenience in disassembly and assembly.

The utility model discloses at least, include following beneficial effect: the maximum stress borne by the nylon pin can be adjusted by adjusting the depth of the annular groove on the nylon pin, so that the nylon pin can be conveniently adjusted according to the maximum stress borne by the reduction gearbox, the adjustment of different stresses on the same coupler is realized, the damage of the gearbox caused by overlarge stress is avoided, and the reduction gearbox is well protected; through setting up cylindrical constant head tank, be convenient for quick with the link location of right half coupling on the link of left half coupling. The utility model discloses a change nylon pin on the shaft coupling can realize changing the biggest bearing stress of shaft coupling.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of the coupling of the present invention;

FIG. 2 illustrates a schematic structural view of a coupling with a pin cover plate;

FIG. 3 illustrates a schematic structural view of a nylon pintle;

fig. 4 illustrates a schematic structure of the left half coupling with positioning grooves.

1. A left half coupling; 2. a right half coupling; 3. a pin hole; 4. a first bolt hole; 5. a pintle cover plate; 6. a second bolt hole; 7. a nylon pin; 8. an annular groove; 9. and (6) positioning a groove.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

Examples

As shown in fig. 1-4, a variable stress elastic pin coupling comprises a left half coupling shaft 1, a right half coupling shaft 2, a nylon pin 7 and a pin cover plate 5,

the link of left side half shaft coupling 1 and right half shaft coupling 2 interconnect all is provided with pin hole 3, pin hole 3 on the left side half shaft coupling 1 with pin hole 3 on the right half shaft coupling 2 corresponds the setting so that nylon pin 7 runs through pin hole 3 on the left side half shaft coupling 1 with it is fixed to connect left half shaft coupling 1 and right half shaft coupling 2 behind the pin hole 3 on the right half shaft coupling 2, the intermediate position of nylon pin 7 length direction is provided with annular groove 8, pin apron 5 sets up the both sides of left side half shaft coupling 1 and right half shaft coupling 2 are in order to fix nylon pin 7 in pin hole 3.

On the basis of the above embodiment, in one embodiment, the connecting ends of the left half coupling 1 and the right half coupling 2 connected to each other are disk-shaped, and the pin holes 3 are uniformly arranged along the circumferential direction of the connecting ends of the left half coupling 1 and the right half coupling 2 connected to each other. The even cylindric lock hole 3 that sets up of circumferential direction through left half shaft coupling 1 and right half shaft coupling 2 interconnect's link makes the even atress of nylon pin 7 in the cylindric lock hole 3, avoids appearing the atress uneven and appear the rupture easily.

On the basis of the above embodiment, in one embodiment, 6 to 8 pin holes 3 are uniformly arranged in the circumferential direction of the connecting end where the left half coupling 1 and the right half coupling 2 are connected with each other. 6-8 pin holes 3 are uniformly arranged at the connecting end, so that the stress on the connecting ends of the left half coupling shaft 1 and the right half coupling shaft 2 is uniform.

On the basis of the above-described embodiment, in one embodiment, the pintle cover 5 has a circular ring shape. The nylon pin 7 is fixed in the pin hole 3 through the annular pin cover plate 5, so that the nylon pin 7 is prevented from sliding out of the pin hole 3.

On the basis of the above embodiments, in one embodiment, the diameter of the nylon pin 7 is equal to the diameter of the pin hole 3.

On the basis of the above embodiment, in one embodiment, a cylindrical positioning groove 9 is formed in one side, connected with the right half coupling, of the left half coupling 1, and the connecting flange of the right half coupling 2 is sleeved in the positioning groove 9. Through setting up cylindrical constant head tank 9, be convenient for quick with the link location of right semi-axis 2 on the link of left semi-axis 1.

On the basis of the above embodiment, in one embodiment, the connecting ends of the left half coupling shaft 1 and the right half coupling shaft 2 are uniformly distributed with first bolt holes 4, and the pin cover plate 5 is provided with second bolt holes 6 corresponding to the first bolt holes 4 so as to fix the pin cover plate 5 on two sides of the left half coupling shaft 1 and the right half coupling shaft 2 respectively through bolts. The pin cover plates 5 are fixed on two sides of the left half coupling shaft 1 and the right half coupling shaft 2 through bolts, and the pin cover plates have the characteristic of convenience in disassembly and assembly.

The working principle of the utility model is as follows: the reduction gearbox is connected with the gear box through the coupler, when the external stress borne by the reduction gearbox is overlarge and the maximum stress borne by the reduction gearbox is large, the reduction gearbox can be damaged, therefore, according to the maximum stress borne by the reduction gearbox, a stress test is carried out on the nylon pin in advance to adjust the depth of the annular groove on the nylon pin, the sum of the stress borne by the nylon pin is smaller than the maximum stress borne by the reduction gearbox, when the output stress is overlarge, the nylon pin is broken, the reduction gearbox is prevented from being damaged, and the reduction gearbox is protected; when the maximum output stress of the coupler needs to be changed, the nylon pin with the annular grooves with different depths is replaced.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (7)

1. The utility model provides an elasticity pin shaft coupling of variable stress, includes left half coupling, right half coupling, nylon pin and pin apron, its characterized in that:

half left shaft coupling and half right shaft coupling interconnect's link all is provided with the pinhole, the epaxial pinhole of half left shaft coupling with the epaxial pinhole of half right shaft coupling corresponds the setting so that the nylon pin runs through epaxial pinhole of half left shaft coupling with half left shaft coupling and half right shaft coupling are connected fixedly behind the epaxial pinhole of half right shaft coupling, nylon pin length direction's intermediate position is provided with the annular groove, the setting of pin apron is in the both sides of half left shaft coupling and half right shaft coupling are in order to fix the nylon pin at the pinhole of pin.

2. The variable stress elastomeric pin coupling of claim 1, wherein the interconnecting ends of the left and right coupling halves are disc-shaped, and the pin holes are evenly arranged along a circumferential direction of the interconnecting ends of the left and right coupling halves.

3. The variable stress elastomeric pin coupling of claim 2, wherein the coupling ends of the left and right coupling halves are uniformly provided with 6-8 pin holes in the circumferential direction.

4. The variable stress elastomeric pin coupling of claim 1, wherein the pin cover plate is annular.

5. The variable stress elastomeric pin coupling of claim 1, wherein the nylon pin has a diameter equal to the diameter of the pin bore.

6. The variable-stress elastic pin coupling according to claim 1, wherein a cylindrical positioning groove is formed in one side of the left half coupling connected with the right half coupling, and a connecting flange of the right half coupling is sleeved in the positioning groove.

7. The variable stress resilient pin coupling of claim 1, wherein the connecting ends of the left and right coupling halves are uniformly provided with first bolt holes, and the pin cover plate is provided with second bolt holes corresponding to the first bolt holes to fix the pin cover plate on both sides of the left and right coupling halves respectively by bolts.