CN215567457U - Vacuum pump coupling pin coupling device - Google Patents

Abstract

The utility model provides a vacuum pump coupling pin connecting device which comprises a shearing shaft pin for bearing shearing force and a pulling force shaft pin for bearing pulling force, wherein the shearing shaft pin comprises a first half-thread column and a second half-thread column which are staggered and arranged in a mutually attached mode; the connecting end of the first half-thread column and the connecting end of the second half-thread column are clamped and fixed, and fixing nuts used for fixing the adjusting shaft pins on the shaft coupler are sleeved on the fixed ends of the first half-thread column and the second half-thread column in a threaded mode. The pin connecting device can be used continuously after the pin is worn, and meanwhile, the performance of the pin is not influenced, and the production cost of an enterprise is effectively reduced.

Description

Vacuum pump coupling pin coupling device

Technical Field

The utility model relates to the technical field of vacuum pump coupling pin connection, in particular to a vacuum pump coupling pin connection device.

Background

The pin of the existing vacuum pump coupling can be subjected to an instantaneous shearing force when a vacuum pump is just started, so that the pin is abraded or broken, the production cost of an enterprise is increased, and the service life of the pin is shortened.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a pin coupling device for a vacuum pump coupling, which can be used continuously even if a pin is worn, and which does not affect the performance of the pin and effectively reduces the production cost of an enterprise.

In order to solve the technical problems, the utility model adopts the technical scheme that:

a vacuum pump coupling pin connecting device comprises a shearing shaft pin for bearing shearing force and a pulling force shaft pin for bearing pulling force, wherein the shearing shaft pin comprises a first half-thread column and a second half-thread column which are staggered and arranged in a mutually attached mode;

the connecting end of the first half-thread column and the connecting end of the second half-thread column are clamped and fixed, and fixing nuts used for fixing the adjusting shaft pins on the shaft coupler are sleeved on the fixed ends of the first half-thread column and the second half-thread column in a threaded mode.

Furthermore, a rack structure is arranged on the splicing surface of the connecting end of the first half-thread column and the second half-thread column.

Furthermore, a pressure buffer tube is sleeved outside the shearing shaft pin.

Furthermore, the first half-thread column connecting surface is an arc surface.

Further, the buffer tube is abrasion resistant rubber material.

Further, the same supplementary half threaded rod of structure is connected to first half thread post and the equal joint of second half thread post stiff end, supplementary half threaded rod is used for easy to assemble fixation nut.

Furthermore, the pulling force shaft pin comprises a connecting screw rod and a buffer nut, and an arc protrusion is additionally arranged on the bottom surface of the buffer nut.

Furthermore, a deformation pipe is sleeved on the outer side of the connecting screw rod, and fixing bosses for increasing the connection stability of the buffer nut are additionally arranged on the outer walls of the two ends of the deformation pipe.

Further, the deformation pipe is made of high-elasticity rubber materials.

The utility model has the advantages and positive effects that:

through install shearing pivot pin and pulling force pivot in turn on the connecting hole of shaft coupling, the pulling force pivot pin is used for guaranteeing the connection stability of shaft coupling, it comprises first half thread post and the concatenation of second half thread post to cut the pivot, form a staggered cylinder structure, the middle section of shearing pivot pin is the cylinder structure, be used for bearing the shearing force of shaft coupling, and the concatenation face of first half thread post and second half thread post has seted up the joint tooth, make the popular position of first half thread post and second half thread post all can splice out the cylinder structure, if damaged appears in use in first half thread post and the second half thread post, intact part is splicing out new cylinder on available first half thread post and the second half thread post, continue to use, still do not influence the performance of pin simultaneously, the effectual manufacturing cost who reduces the enterprise.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an overall block diagram of a vacuum pump coupling pin coupling of the present invention;

FIG. 2 is a front view of a shear pin shaft of a vacuum pump coupling pin coupling of the present invention;

FIG. 3 is a front view of a vacuum pump coupling pin coupling arrangement tension shaft pin of the present invention;

in the figure: 1. shearing the shaft pin; 101. a first half-threaded post; 102. a second half-threaded post; 103. fixing a nut; 104. a buffer tube; 105. supplementing a half-threaded rod; 2. a tension shaft pin; 201. connecting a screw rod; 202. a cushion nut; 203. and deforming the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides a vacuum pump coupling pin coupling device, which comprises a shearing shaft pin 1 for bearing shearing force and a tension shaft pin 2 for bearing tension force, as shown in figures 1 and 2. The shearing shaft pin 1 comprises a first half-thread column 101 and a second half-thread column 102 which are staggered and are arranged in a mutually attached mode, the first half-thread column 101 and the second half-thread column 102 form a staggered cylindrical structure, the middle section of the shearing shaft pin 1 is of a cylindrical structure, and the cylindrical part is used for bearing shearing force generated when the coupler is used.

All seted up the joint tooth on the concatenation face of first half-thread post 101 and second half-thread post 102 link, make the optional position of first half-thread post 101 and second half-thread post 102 all can splice into the cylinder, after the link of one of them or two of first half-thread post 101 and second half-thread post 102 appears damaged, can choose for use other complete remakes of first half-thread post 101 or second half-thread post 102 to splice into the cylinder and continue to use, be convenient for first half-thread post 101 and second half-thread post 102 used repeatedly.

The connecting surface of the first half-threaded column 101 is an arc surface for increasing the splicing surface area of the first half-threaded column 101 and the second half-threaded column 102 and improving the connecting stability of the first half-threaded column 101 and the second half-threaded column 102. Preferably, the clamping teeth are of a rack structure capable of sliding relatively in a single direction, the structure is simple, and the production of the shearing shaft pin 1 and the installation of the first half-threaded column 101 and the second half-threaded column 102 are facilitated.

The fixing ends of the first half-thread column 101 and the second half-thread column 102 are sleeved with a fixing nut 103 used for fixing the adjusting shaft pin on the shaft coupler in a threaded manner, the fixing nut 103 is used for installing and fixing the shearing shaft pin 1 on the shaft coupler, meanwhile, the fixing ends of the first half-thread column 101 and the second half-thread column 102 are clamped with complementary half-thread rods 105 with the same structure (the complementary half-thread rods 105 can use the abandoned first half-thread column 101 and the abandoned second half-thread column 102), the position where the first half-thread column 101 and the second half-thread column 102 are connected with the fixing nut 103 is of a cylindrical structure, and the fixing nut 103 is convenient to install.

The pressure buffer tube 104 is sleeved outside the shearing shaft pin 1, the pressure buffer tube 104 is used for buffering instant shearing force generated when the coupler is started, and the influence of the instant shearing force on the shearing shaft pin 1 is reduced, preferably, the pressure buffer tube 104 is made of wear-resistant rubber materials which are not easy to deform, and can bear part of the shearing force while buffering the instant shearing force.

As shown in fig. 1 and fig. 3, the pulling force shaft pin 2 includes a connection screw 201 and a buffer nut 202, the buffer nut 202 is sleeved on two ends of the connection shaft in a threaded manner, the connection screw 201 is fixed in the mounting hole of the coupler, a deformation pipe 203 is sleeved on the outer side of the connection screw 201, and the thickness of the deformation pipe 203 is greater than that of the pressure buffer pipe 104, so as to prevent the connection screw 201 from bearing a large shearing force. And the bottom surface of the buffer nut 202 is additionally provided with the arc protrusion, the outer walls of the two ends of the deformation pipe 203 are additionally provided with the fixing bosses for increasing the connection stability of the buffer nut 202, when the buffer nut 202 is installed, the arc protrusion compresses the fixing bosses to deform the fixing bosses, so that the buffer nut 202 and the connecting screw rod 201 are effectively prevented from generating relative displacement, and the reverse installation of the fixing bosses forcibly provides axial thrust for the buffer nut 202 to ensure the connection stability of the buffer nut 202. Preferably, the deformation tube 203 is made of a high-elasticity rubber material, so that the deformation capability of the deformation tube 203 is greater than that of the pressure buffer tube 104, and the excessive shearing force borne by the connecting screw 201 is effectively avoided.

The working principle and the working process of the utility model are as follows:

the coupler is installed by attaching two connecting cover plates, and when the two connecting cover plates are fixedly connected, the pulling shaft pins 2 and the shearing shaft pins 1 are alternately installed in a plurality of installation holes of the two connecting cover plates. When the tension shaft pin 2 is installed, the deformation pipe 203 is sleeved outside the connecting screw rod 201 and is installed in the installation hole, the two ends of the connecting screw rod 201 are screwed into the buffer nuts 202, the bottom ends of the buffer nuts 202 compress the fixed boss, the two connecting cover plates are compressed, and the connecting stability of the buffer nuts 202 is improved by the reverse force of the fixed boss.

When the shearing shaft pin 1 is installed, the length required by installation is measured in the installation hole by using the first half-thread column 101 and the second half-thread column 102, and the complementary half-thread rod 105 is clamped at the position where the fixing nut 103 is installed on the first half-thread column 101 and the second half-thread column 102, and then the fixing nut 103 is sleeved in. The outer side of the mounting end of the first half-threaded column 101 is sleeved with a pressure buffer tube 104, the connecting end of the pressure buffer tube 104 and the first half-threaded column 101 is placed from one end of a mounting hole, the mounting end of the second half-threaded column 102 is placed from the other end of the mounting hole, after the first half-threaded column 101 is contacted with the second half-threaded column 102, two fixing nuts 103 are pressed to be close to each other, the splicing surfaces of the first half-threaded column 101 and the second half-threaded column 102 are meshed, the pressure buffer tube 104 deforms under stress, the first half-threaded column 101 and the second half-threaded column 102 can be ensured to complete the meshing action, when the two fixing nuts 103 are seen to be contacted with a connecting cover plate, the fixing nuts 103 are rotated, the first half-threaded column 101 and the second half-threaded column 102 are fixed in the mounting hole, and the installation of the shearing shaft pin 1 is completed,

the embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims (9)

1. The column pin coupling device of the vacuum pump coupling is characterized by comprising a shearing shaft pin (1) for bearing shearing force and a pulling force shaft pin (2) for bearing pulling force, wherein the shearing shaft pin (1) comprises a first half-thread column (101) and a second half-thread column (102) which are staggered and arranged in a mutually attached mode;

the connecting end joint of first half thread post (101) and second half thread post (102) is fixed, first half thread post (101) and second half thread post (102) stiff end equal thread bush has been used for fixing fixation nut (103) on the shaft coupling with the adjusting pin.

2. The vacuum pump coupling pin coupling device according to claim 1, wherein a rack structure is formed on a splicing surface of the connecting end of the first half-thread column (101) and the second half-thread column (102).

3. A vacuum pump coupling pin coupling arrangement according to claim 1, characterized in that a pressure buffer tube (104) is sleeved outside the shear pin (1).

4. The vacuum pump coupling pin coupling device according to claim 2, wherein the splicing surface of the first half-threaded column (101) is a circular arc surface.

5. A vacuum pump coupling pin coupling arrangement as claimed in claim 3, wherein said buffer tube (104) is of abrasion resistant rubber material.

6. A vacuum pump coupling pin coupling device as claimed in claim 1, characterized in that the fixed ends of the first half-threaded column (101) and the second half-threaded column (102) are respectively clamped with a complementary half-threaded rod (105) with the same structure, and the complementary half-threaded rod (105) is used for conveniently installing the fixing nut (103).

7. The vacuum pump coupling pin coupling device according to claim 1, wherein the pulling force shaft pin (2) comprises a connecting screw rod (201) and a buffer nut (202), and a circular arc protrusion is added on the bottom surface of the buffer nut (202).

8. The vacuum pump coupling pin coupling device according to claim 7, wherein a deformation pipe (203) is sleeved outside the connecting screw rod (201), and fixing bosses for increasing the connection stability of the buffer nut (202) are additionally arranged on the outer walls of the two ends of the deformation pipe (203).

9. A vacuum pump coupling pin coupling arrangement according to claim 8, characterized in that said deformation tube (203) is of a highly elastic rubber material.

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