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CN-121993551-A - Homodromous worm gear fastening device

CN121993551ACN 121993551 ACN121993551 ACN 121993551ACN-121993551-A

Abstract

The invention discloses a homodromous worm gear fastening device which comprises a box body, a fastening bolt and a nut, wherein a motor is arranged in the box body, the motor is connected with a first worm, the first worm is connected with a first worm wheel, a second worm on the first worm wheel is coaxially connected with a second worm wheel, a fastening shaft is arranged in the second worm wheel, the first worm wheel and the second worm wheel are driven to be linked through the motor to drive the fastening shaft to rotate, and the fastening bolt is arranged on the fastening shaft and is in threaded fit with the nut. The automatic fastening device for the homodromous output worm gear and worm greatly widens the application range, shortens the assembly time of finished products by 70%, is safe and self-locking, and greatly improves the efficiency, is applied to a large-scale folding bridge frame, is used for manually and difficultly arriving high-altitude hoisting operation places, realizes instant hoisting and fastening by remote control and switch control and automatic triggering induction, greatly saves the working time and the labor cost of a crane, is used for automatic fastening after folding wings of an all-wing cargo container truck, does not need manual binding bands, greatly improves the short-distance transportation efficiency, and ensures the safety and the theft prevention of long-distance transportation.

Inventors

  • LIU SHULIN

Assignees

  • 常州腾越焊接有限公司

Dates

Publication Date
20260508
Application Date
20260323

Claims (8)

  1. 1. The homodromous worm gear fastening device is characterized by comprising a box body (4), a fastening bolt (13) and a nut (14), wherein a motor (3) is arranged in the box body (4), the motor (3) is connected with a first worm gear (6), the first worm gear (6) is connected with a first worm wheel (11), a second worm (27) is coaxially arranged on the first worm gear (6), the second worm (27) is connected with a second worm wheel (19), a fastening shaft (12) is arranged in the second worm wheel (19), and the first worm wheel (6) is driven to be linked with the second worm wheel (19) through the motor (3), so that the fastening shaft (12) is driven to rotate; The fastening bolt 13 is arranged on the fastening shaft (12), and the fastening bolt (13) is in threaded fit with the nut (14).
  2. 2. The homodromous worm gear fastening device according to claim 1, characterized in that a first key (15) is arranged on the fastening shaft (12), and the first key (15) is connected with a sliding groove (13.1) on the fastening bolt (13).
  3. 3. The homodromous worm and gear fastening device according to claim 1, further comprising a second positioning bolt (16), wherein the fastening bolt (13) is fixed on the fastening shaft (12) by the second positioning bolt (16).
  4. 4. The homodromous worm gear fastening device according to claim 1, characterized in that a first positioning sleeve (18) is arranged on a fastening shaft (12) on one side of the second worm gear (19), and a second positioning sleeve (21) is arranged on the other side of the second worm gear (19).
  5. 5. The homodromous worm gear fastening device according to claim 1, characterized in that a second chute (17) is further arranged on the fastening shaft (4), and the second chute (17) is connected by a second key (20) so as to realize the linkage of the fastening shaft (7) and the second worm gear (19).
  6. 6. The homodromous worm gear fastening device according to claim 1, characterized in that one side of the fastening shaft (7) far away from the nut (14) is in threaded fit with the fastening shaft (7) through an internal thread (22), a trigger disc (23) is arranged on the end face of the fastening shaft (7) far away from one end of the nut (14), a first travel switch (24) and a second travel switch (25) are further arranged in the box body (4), and the first travel switch (24) or the second travel switch (25) in the box body (4) is triggered by the trigger disc (23).
  7. 7. The homodromous worm gear fastening device disclosed by claim 1 is characterized in that a bearing seat (7) is further arranged in the box body (3), a sealing ring (9) is arranged in the bearing seat (7), a bearing (8) is arranged on one side of the first worm (6), the bearing (8) is connected with the bearing seat (7), and an inner hexagon (10) is arranged on the outer end face of the first worm (6).
  8. 8. The homodromous worm gear fastening device according to claim 1, characterized in that a first positioning bolt (5) is further arranged on the bottom surface of the box body (4), and an upper fixing tile (1) and a lower fixing tile (2) are arranged outside the motor (3).

Description

Homodromous worm gear fastening device Technical Field The invention relates to the field of electric bolt fastening, in particular to a homodromous worm and gear fastening device. Background The worm gear has a self-locking function, so that the worm gear is widely applied to various industries, the working principle of the worm gear causes the input end and the output end of the worm gear to form a 90-degree angle, the fastening of space-limited scenes such as automatic equipment, robots and the like is often limited, and the worm gear and worm gear homodromous input and output fastening device is introduced in order to adapt a device taking the worm gear and worm as a power source to more application scenes. Disclosure of Invention The invention aims to provide a homodromous worm gear fastening device, which is used for solving the problems in the background technology. The invention provides a homodromous worm gear fastening device which comprises a device body and a nut, wherein the device comprises a fastening bolt box body, a motor and a power transmission mechanism are arranged in the box body, the motor is connected with a first worm, the first worm is connected with a first worm wheel, a second worm is coaxially arranged on the first worm wheel, the second worm is connected with a second worm wheel, a fastening shaft is arranged in the second worm wheel, the first worm wheel and the second worm wheel are driven to be linked through the motor, and then the fastening shaft is driven to rotate, the fastening bolt is arranged on the fastening shaft, and the fastening bolt is in threaded fit with the nut. As a preferable technical scheme of the invention, the fastening shaft is provided with a first key, and the first key is connected with a chute on the fastening bolt. The invention also comprises a second positioning bolt, and the fastening bolt is fixed on the fastening shaft through the second positioning bolt. As the preferable technical scheme of the invention, a first positioning sleeve is arranged on a fastening shaft at one side of the second worm wheel, and a second positioning sleeve is arranged at the other side of the second worm wheel. The preferable technical scheme of the invention is that the fastening shaft is also provided with a second chute, and is connected with the second chute by a second key, so that the fastening shaft and the second worm gear are linked. According to the preferable technical scheme, one side, far away from the nut, of the fastening shaft is matched with the shaft through internal threads, a trigger disc is arranged on the end face, far away from one end of the nut, of the fastening shaft, a first travel switch and a second travel switch are further arranged in the box body, and the first travel switch or the second travel switch in the box body is triggered by the trigger disc. The box body is provided with a first worm, a second worm is arranged on the first worm, a bearing is arranged on one side of the first worm, the first worm is connected with the bearing seat through the bearing, and the outer end face of the first worm is provided with an inner hexagon. As the preferable technical scheme of the invention, the bottom surface of the box body is also provided with a first positioning bolt, and an upper fixing tile and a lower fixing tile are arranged outside the motor. The technical scheme has the advantages that the application range is greatly widened through the automatic fastening device of the homodromous output worm gear, the assembly time of finished products is shortened by 70%, the products are safely and self-locking, the efficiency is greatly improved, the automatic fastening device is applied to a large-scale folding bridge frame and is used for manually and difficultly reaching a high-altitude hoisting operation place, the automatic fastening device is automatically triggered by remote control and switch control to realize instant hoisting and fastening, the cost of a crane bench and workers is greatly saved, the automatic fastening device is used for automatic fastening after folding wings of an all-wing cargo container truck, manual binding bands are not needed, the short-distance transportation efficiency is greatly improved, the long-distance transportation safety and theft prevention are guaranteed, and compared with a traditional rope tightener, the automatic fastening device is fire-resistant and anti-cutting and theft preventing. Drawings FIG. 1 is a schematic diagram of the main structure of the present invention; FIG. 2 is a schematic cross-sectional view of the structure at A-A in FIG. 1; FIG. 3 is a schematic cross-sectional view of the structure at B-B in FIG. 1; FIG. 4 is a schematic view of the cross-sectional structure in the direction D-D in FIG. 1; FIG. 5 is a schematic view showing a cross-sectional structure in the E-E direction in FIG. 3; Fig. 6 is a schematic structural diagram of the H direction in fig. 1. In the figur