CN214118776U

CN214118776U - Quick-change threaded coupling

Info

Publication number: CN214118776U
Application number: CN202022539179.1U
Authority: CN
Inventors: 熊威; 张志刚; 谢小春
Original assignee: Wisco Jiangbei Cold Formed Steel Co ltd
Current assignee: Wisco Jiangbei Cold Formed Steel Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-09-03
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a quick change threaded shaft coupling, it includes the driving shaft, thin tooth threaded connection has hollow shaft coupling on the driving shaft one end axle wall, the constant head tank has been seted up on the driving shaft top, the stopping groove has been seted up to shaft coupling top surface, it has the stopping piece to inlay in the stopping groove, the locating hole has been seted up to stopping piece central authorities, during driving shaft, shaft coupling and stopping piece assembly, the constant head tank forms positioning hole with the locating hole coincidence. The utility model discloses a mode that traditional shaft coupling need be hot-packed has been eliminated to quick change threaded shaft coupling, not only dismantles simple to operate, and the corresponding down time that has reduced strives for more production time for production line.

Description

Quick-change threaded coupling

Technical Field

The utility model relates to a machine part technical field, concretely relates to quick change threaded shaft coupling.

Background

In order to ensure the effectiveness of equipment in the process of equipment maintenance and installation, a coupler must be correctly installed, hammering is prohibited, lubricating oil is correctly added, and the like, and the coupler of the equipment is generally installed in a hot-pack mode. When the coupler is hot-assembled, the temperature needs to be heated to about 250 ℃, and meanwhile, the temperature cannot rise too fast in the temperature rise process, otherwise, the temperature uniformity of the coupler is influenced. And after the heating is carried out to the designated temperature, measuring the expansion numerical value after heating to measure the expanded inner diameter of the coupler, and then enabling the rod with the maximum numerical value of the heated and expanded inner diameter to freely enter the inner diameter hole of the coupler for hot sleeving work, thus finishing the hot assembling work of the coupler of the equipment and naturally cooling the coupler.

The existing coupler generally needs to be installed by the method, time is long, and due to the fact that hot sleeving work is conducted at high temperature, if preparation work is not careful and matching of operators is not coordinated, serious adverse effects can be brought to the sleeving work.

Disclosure of Invention

An object of the utility model is to overcome prior art not enough, provide a quick change threaded shaft coupling, its shaft coupling that does not need just can swiftly install and change through the hot dress for a section, the simple structure of this shaft coupling, convenient to use reduces maintenance duration, improves the productivity effect.

In order to realize the purpose, the utility model provides a quick change screw thread shaft coupling, it includes the driving shaft, thin tooth threaded connection has hollow shaft coupling on the driving shaft one end axle wall, the constant head tank has been seted up on the driving shaft top, the stopping groove has been seted up to shaft coupling top surface, it has the stopping piece to inlay in the stopping groove, the locating hole has been seted up to stopping piece central authorities, during driving shaft, shaft coupling and stopping piece assembly, the constant head tank forms positioning hole with the locating hole coincidence.

Furthermore, an outer fine thread is arranged on the shaft wall of the driving shaft, and an inner fine thread which is in matched connection with the outer fine thread is arranged on the inner wall of the coupling sleeve.

Furthermore, the cross section of the coupling sleeve is T-shaped, the coupling sleeve comprises a cylindrical threaded connector and a circular truncated cone arranged outside the top wall of the threaded connector, and the retaining groove is formed in the top surface of the threaded connector; the retaining groove and the retaining sheet are of polygonal structures.

Still further, the retaining groove and the retaining piece are of a dodecagonal structure.

Furthermore, the positioning hole is of a rectangular structure with two arc-shaped end edges; and jackscrews are symmetrically arranged on the retaining sheets on the two sides of the positioning hole.

Still further, the circumference direction of round platform top surface is provided with a plurality of screw.

The principle of the utility model is as follows:

1. the driving shaft is connected with the coupling sleeve through threads with fine teeth, the helix angle of the fine teeth is smaller, and the self-locking of the threads is more facilitated, so the fine teeth are generally used in places needing looseness prevention; the fine thread can also play a role in fine adjustment due to the advantage of small thread pitch;

2. after the anti-return sheet is embedded in the positioning groove of the driving shaft, the anti-return sheet and the driving shaft cannot move relatively;

3. the twelve-angle embedded structural form adopted between the coupling sleeve and the anti-return sheet not only plays a role of a flat key, but also facilitates the embedding of the anti-return sheet on the coupling sleeve when the coupling sleeve is finely adjusted;

4. after the coupling sleeve and the anti-return sheet are connected with each other, the driving shaft, the coupling sleeve and the anti-return sheet do not move relatively;

5. 2 jackscrews are processed on the retaining sheet, so that the retaining sheet is convenient to detach during maintenance.

The utility model has the advantages that:

the utility model discloses a mode that traditional shaft coupling need be hot-packed has been eliminated to quick change threaded shaft coupling, not only dismantles simple to operate, and the corresponding down time that has reduced strives for more production time for production line.

Drawings

Fig. 1 is an assembly view of a quick-change threaded coupling;

FIG. 2 is a right side view of the quick-change threaded coupling;

FIG. 3 is a front view of the drive shaft;

FIG. 4 is a right side view of the drive shaft;

FIG. 5 is a front view of the coupling sleeve;

FIG. 6 is a right side view of the coupling sleeve;

FIG. 7 is a front view of a check plate;

in the figure, a driving shaft 1, a positioning groove 1.1, an outer fine thread 1.2, a coupling sleeve 2, a backstop groove 2.1, an inner fine thread 2.2, a thread adaptor 2.3, a circular truncated cone 2.4, a screw hole 2.41, a backstop sheet 3, a positioning hole 3.1 and a jackscrew 3.2.

Detailed Description

The invention is described in further detail below with reference to the figures and specific embodiments for the understanding of those skilled in the art.

The quick-change threaded coupler as shown in fig. 1-7 comprises a driving shaft 1, wherein a hollow coupling sleeve 2 is connected with a fine thread on the shaft wall at one end of the driving shaft 1, an outer fine thread 1.2 is arranged on the shaft wall of the driving shaft 1, and an inner fine thread 2.2 which is matched and connected with the outer fine thread 1.2 is arranged on the inner wall of the coupling sleeve 2; the top end of the driving shaft 1 is provided with a positioning groove 1.1,

the cross section of the coupling sleeve 2 is T-shaped, the coupling sleeve 2 comprises a cylindrical threaded connector 2.3 and a circular truncated cone 2.4 arranged outside the top wall of the threaded connector 2.3, and a plurality of screw holes 2.41 are formed in the circumferential direction of the top surface of the circular truncated cone 2.4;

the top surface of the screw thread connector 2.3 is provided with a retaining groove 2.1, and the retaining groove 2.1 is a dodecagonal structure in which a dodecagonal-structure retaining sheet 3 is embedded;

a positioning hole 3.1 is formed in the center of the anti-backing sheet 3, and the positioning hole 3.1 is of a rectangular structure with arc-shaped edges at two ends; the stop sheets 3 at the two sides of the positioning hole 3.1 are symmetrically provided with jackscrews 3.2;

the coupling sleeve 2 enters the driving shaft 1 through fine threads in a rotating mode, when the shaft head of the driving shaft 1 is flush with the side of a backstop groove 2.1 in the coupling sleeve 2, the rotation is stopped, a backstop sheet is embedded into the backstop sheet at a close angle, and a positioning groove 1.1 and a positioning hole 3.1 are overlapped to form a positioning through hole;

when in disassembly, the stop sheet 3 is disassembled by using the jackscrew 3.2, and the coupling sleeve 2 is withdrawn from the driving shaft 1 by rotation.

Other parts not described in detail are prior art. Although the above embodiments have been described in detail, it is only a part of the embodiments of the present invention, rather than all embodiments, and other embodiments can be obtained without inventive step according to the present embodiments.

Claims

1. A quick-change threaded coupling is characterized in that: it includes driving shaft (1), fine tooth threaded connection has hollow shaft coupling (2) on driving shaft (1) one end axle wall, constant head tank (1.1) has been seted up on driving shaft (1) top, stopping groove (2.1) have been seted up to shaft coupling (2) top surface, it has stopping piece (3) to inlay in stopping groove (2.1), locating hole (3.1) have been seted up to stopping piece (3) central authorities, during driving shaft (1), shaft coupling (2) and stopping piece (3) assembly, constant head tank (1.1) and locating hole (3.1) coincidence form positioning hole.

2. The quick-change threaded coupling according to claim 1, wherein: the shaft wall of the driving shaft (1) is provided with an outer fine thread (1.2), and the inner wall of the coupling sleeve (2) is provided with an inner fine thread (2.2) which is matched and connected with the outer fine thread (1.2).

3. The quick-change threaded coupling according to claim 1 or 2, characterized in that: the cross section of the coupling sleeve (2) is T-shaped, the coupling sleeve (2) comprises a cylindrical threaded connector (2.3) and a circular truncated cone (2.4) arranged outside the top wall of the threaded connector (2.3), and the retaining groove (2.1) is formed in the top surface of the threaded connector (2.3); the retaining groove (2.1) and the retaining sheet (3) are of polygonal structures.

4. The quick-change threaded coupling according to claim 1 or 2, characterized in that: the retaining groove (2.1) and the retaining sheet (3) are of a dodecagonal structure.

5. The quick-change threaded coupling according to claim 1, wherein: the positioning hole (3.1) is of a rectangular structure with arc-shaped edges at two ends; and jackscrews (3.2) are symmetrically arranged on the anti-backing sheets (3) at the two sides of the positioning hole (3.1).

6. A quick-change threaded coupling according to claim 3, wherein: the top surface of the circular truncated cone (2.4) is provided with a plurality of screw holes (2.41) in the circumferential direction.