A pre-tightening, anti-loosening and balancing device for a spiral shaft

Abstract

The present invention relates to a pre-tightening, anti-loosening and balancing device for a spiral shaft, comprising a spiral shaft, a worm wheel, a worm, a shaft seat body 1 and a shaft seat body 2. A spiral groove is arranged in the middle of the spiral shaft, a steel wire is wound on the spiral groove and the innermost steel wire is inserted into the spiral shaft and fixed on a steel ball. One end of the spiral shaft is arranged as a cylindrical shaft, and the other end is arranged as a platform shaft. A worm wheel with a platform inner hole is sleeved on the platform shaft. A worm is arranged on the outer side of the worm wheel. The worm is assembled in a worm mounting hole in the shaft seat body 2. An annular groove is arranged at the tail end of the worm. A screw mounting hole is arranged at the position of the shaft seat body 2 facing the annular groove, and a set screw is assembled in the screw mounting hole. The present invention realizes pre-tightening of the steel wire rope by adding a pre-tightening design in the transmission mechanism of the spiral shaft to the steel wire rope; and a locking design is added at the tail end of the worm to prevent the loosening of the steel wire rope caused by the self-rotation of the spiral shaft due to the loosening of the worm wheel and worm.

Description

Technical Field

[0001] The invention relates to the technical field of spiral shaft control, and in particular to a pre-tightening, anti-loosening and balancing device for a spiral shaft. Background Art

[0002] The spiral shaft in the prior art cannot pre-tighten the transmission of the wire rope, and the tightness cannot be adjusted after the wire rope is wound around the spiral shaft; after the wire rope is wound, the spiral shaft has no self-locking design, causing the wire rope to loosen during operation due to the self-rotation of the spiral shaft; the existing spiral shaft is designed with only one end supported, so after being subjected to the tension of the running wire rope, the verticality problem of the axis will occur. Summary of the invention

[0003] The object of the present invention is to provide a pre-tightening, anti-loosening and balancing device for a spiral shaft, so as to solve the problem that the spiral shaft in the prior art cannot pre-tighten and anti-loosen the wire rope.

[0004] The present invention provides a pre-tightening, anti-loosening and balancing device for a spiral rotating shaft, comprising a spiral rotating shaft, a worm wheel, a worm, a rotating shaft seat body 1 and a rotating shaft seat body 2, wherein the rotating shaft seat body 1 and the rotating shaft seat body 2 are buckled and arranged, and a mounting groove is formed inside the two, the spiral rotating shaft, the worm wheel and the worm are all arranged in the mounting groove, a spiral groove is arranged in the middle of the spiral rotating shaft, a steel wire is wound around the spiral groove, and the innermost steel wire is inserted into the interior of the spiral rotating shaft and fixed on a steel ball, the steel ball is arranged in the inner hole of the spiral rotating shaft, and one end of the spiral rotating shaft is arranged A cylindrical shaft, the other end of which is set as a platform shaft. A retaining ring is set on the inner side of the rotating shaft seat body. The cylindrical shaft extends into the retaining ring for fitting connection. A worm wheel with a platform inner hole is sleeved on the platform shaft. The platform shaft is assembled with the inner hole of the worm wheel. A worm is set on the outer side of the worm wheel. The worm wheel is meshingly connected with the worm. The worm is assembled in the worm mounting hole in the rotating shaft seat body 2. An annular groove is set at the tail end of the worm. The rotating shaft seat body 2 is provided with a screw mounting hole at a position opposite to the annular groove, and a set screw is assembled in the screw mounting hole.

[0005] Furthermore, a bearing is sleeved on the outer side of the cylindrical shaft of the spiral shaft, and a connecting rod is sleeved on the outer side of the bearing.

[0006] Furthermore, a second retaining ring is arranged on the inner side of the second rotating shaft seat body, a steel sleeve is embedded in the inner side of the second retaining ring, a support shaft is arranged on the outer side of the platform shaft, and the support shaft extends into the steel sleeve for fitting connection.

[0007] Furthermore, the first rotating shaft seat body and the first snap ring are integrally arranged, and the second rotating shaft seat body and the second snap ring are integrally arranged.

[0008] Furthermore, a through hole is provided in the steel ball, and one end of the steel wire passes through the through hole of the steel ball and is pressed against the steel ball.

[0009] The beneficial effects of adopting the above technical solution of the present invention are:

[0010] The present invention adds a pre-tightening design to the transmission of the wire rope by the spiral shaft. After the winding position of the wire rope is determined, the spiral shaft is driven to rotate by the rotation of the worm gear to achieve pre-tightening of the wire rope; a locking design is added to the tail end position of the worm gear, and the worm gear is tightened by a set screw to prevent the wire rope from loosening due to the self-rotation of the spiral shaft caused by the loosening of the worm gear; the single-sided support design of the spiral shaft is improved, so that when the spiral shaft is subjected to radial force, the verticality of the axis is guaranteed due to the support at both ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The cross section of the pre-tightening, anti-loosening and balancing device of the spiral shaft of the present invention is Figure 1 ;

[0012] Figure 2 The cross section of the pre-tightening, anti-loosening and balancing device of the spiral shaft of the present invention is Figure 2 ;

[0013] Figure 3 It is a schematic diagram of the assembly relationship of the spiral shaft, worm wheel, worm and set screw of the present invention;

[0014] Figure 4 This is a schematic diagram of the spiral shaft structure of the present invention;

[0015] Figure 5 It is a schematic diagram of the worm gear structure of the present invention;

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1- spiral shaft, 101- spiral groove, 102- steel ball, 103- cylindrical shaft, 104- platform shaft, 105- support shaft, 2- worm wheel, 3- worm, 301- annular groove, 4- shaft seat body one, 401- snap ring one, 5- shaft seat body two, 501- snap ring two, 502- steel sleeve, 6- steel wire, 7- set screw, 8- bearing, 9- connecting rod. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0019] like Figure 1-5As shown, the present invention provides a pre-tightening, anti-loosening and balancing device for a spiral shaft, comprising a spiral shaft 1, a worm wheel 2, a worm 3, a shaft seat body 1 4 and a shaft seat body 2 5, wherein the shaft seat body 1 4 and the shaft seat body 2 5 are buckled and a mounting groove is formed inside the two, the spiral shaft 1, the worm wheel 2 and the worm 3 are all arranged in the mounting groove, a spiral groove 101 is arranged in the middle of the spiral shaft 1, a steel wire 6 is wound around the spiral groove 101 and the innermost steel wire 6 is inserted into the spiral shaft 1 and fixed on a steel ball 102, the steel ball 102 is arranged in the inner hole of the spiral shaft 1, one end of the spiral shaft 1 is arranged as a cylindrical shaft 103, and the other end is arranged as a platform shaft 104, the shaft seat body 1 4 is provided with a cylindrical shaft 103, and the other end is provided with a platform shaft 104, A retaining ring 401 is provided on the inner side, and the cylindrical shaft 103 extends into the retaining ring 401 for fitting connection. A worm wheel 2 with a platform inner hole is sleeved on the platform shaft 104, and the platform shaft 104 is assembled with the inner hole of the worm wheel 2. A worm 3 is provided on the outer side of the worm wheel 2, and the worm wheel 2 is meshingly connected with the worm 3. The worm 3 is assembled in the worm mounting hole in the rotating shaft seat body 5. An annular groove 301 is provided at the tail end of the worm 3, and a screw mounting hole is provided on the rotating shaft seat body 5 at a position opposite to the annular groove 301, and a set screw 7 is assembled with a thread in the screw mounting hole.

[0020] The working principle of the pre-tightening, anti-loosening and balancing device of the spiral shaft of this embodiment is as follows: when the position of the steel wire 6 is fixed after being wound around the spiral shaft 1, an external auxiliary rotating device is inserted into the countersunk hole at the top end of the worm 3 to rotate the worm 3, and the rotation of the worm 3 drives the worm wheel 2 to rotate, and the rotation of the worm wheel 2 drives the spiral shaft 1 to pre-tighten the steel wire 6, thereby pre-tightening the steel wire 6; after pre-tightening, the set screw 7 is pressed into the annular groove 301 of the worm 3 through the screw hole on the shaft seat body 5, and the steel wire 6 remains locked in the pre-tightened state to prevent the steel wire 6 from loosening.

[0021] Specifically, a bearing 8 is sleeved on the outer side of the cylindrical shaft 103 of the spiral shaft 1, and a connecting rod 9 is sleeved on the outer side of the bearing 8. The connecting rod 9 is used to support the entire device.

[0022] A second retaining ring 501 is arranged on the inner side of the second rotating shaft seat body 5, and a steel sleeve 502 is embedded in the inner side of the second retaining ring 501. A support shaft 105 is arranged on the outer side of the platform shaft 104, and the support shaft 105 extends into the steel sleeve 502 for mating connection. The two ends of the spiral rotating shaft 1 are respectively supported by the first retaining ring 401 and the second retaining ring 501 to achieve balance at both ends. The first rotating shaft seat body 4 and the first retaining ring 401 are arranged as a whole, and the second rotating shaft seat body 5 and the second retaining ring 501 are arranged as a whole.

[0023] Specifically, a through hole is provided in the steel ball 102 , and one end of the steel wire 6 passes through the through hole of the steel ball 102 and then the steel wire 6 is pressed against the steel ball 102 .

[0024] In summary, the present invention adds a pre-tightening design to the transmission of the wire rope by the spiral shaft. After the winding position of the wire rope is determined, the spiral shaft is driven to rotate by the rotation of the worm gear to achieve pre-tightening of the wire rope; a locking design is added to the tail end position of the worm gear, and the worm gear is tightened by a set screw to prevent the wire rope from loosening due to the spiral shaft rotating due to loosening of the worm gear; the single-sided support design of the spiral shaft is changed to a double-sided support design, so that when the spiral shaft is subjected to radial force, the verticality of its axis is guaranteed due to the support at both ends.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pre-tightening, anti-loosening and balancing device for a spiral shaft, characterized in that: The invention comprises a spiral shaft, a worm wheel, a worm, a shaft seat body 1 and a shaft seat body 2, wherein the shaft seat body 1 and the shaft seat body 2 are buckled and arranged and a mounting groove is formed inside the two, the spiral shaft, the worm wheel and the worm are all arranged in the mounting groove, a spiral groove is arranged in the middle of the spiral shaft, a steel wire is wound on the spiral groove and the innermost steel wire is inserted into the interior of the spiral shaft and fixed on a steel ball, the steel ball is arranged in the inner hole of the spiral shaft, one end of the spiral shaft is arranged as a cylindrical shaft, and the other end is arranged as a flat shaft. The platform shaft has a retaining ring 1 arranged on the inner side of the rotating shaft seat body 1, the cylindrical shaft extends into the retaining ring 1 for fitting connection, a worm wheel with a platform inner hole is sleeved on the platform shaft, the platform shaft is assembled with the inner hole of the worm wheel, a worm is arranged on the outer side of the worm wheel, the worm wheel is meshingly connected with the worm, the worm is assembled in the worm mounting hole in the rotating shaft seat body 2, an annular groove is arranged at the tail end of the worm, the rotating shaft seat body 2 is arranged with a screw mounting hole at a position opposite to the annular groove, a set screw is assembled in the screw mounting hole.

2. The pre-tightening, anti-loosening and balancing device for a spiral shaft according to claim 1, characterized in that: A bearing is sleeved on the outer side of the cylindrical shaft of the spiral shaft, and a connecting rod is sleeved on the outer side of the bearing.

3. The pre-tightening, anti-loosening and balancing device for a spiral shaft according to claim 1, characterized in that: A second clamping ring is arranged on the inner side of the second rotating shaft seat body, and a steel sleeve is embedded in the inner side of the second clamping ring. A supporting shaft is arranged on the outer side of the platform shaft, and the supporting shaft extends into the steel sleeve for matching connection.

4. The pre-tightening, anti-loosening and balancing device for a spiral shaft according to claim 3, characterized in that: The first rotating shaft seat body and the first snap ring are integrally arranged, and the second rotating shaft seat body and the second snap ring are integrally arranged.

5. The pre-tightening, anti-loosening and balancing device for a spiral shaft according to claim 1, characterized in that: A through hole is arranged in the steel ball, and one end of the steel wire passes through the through hole of the steel ball and is pressed against the steel ball.

Images