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CN-224199062-U - Worm wheel self-locking jack for testing and assembling universal coupling

CN224199062UCN 224199062 UCN224199062 UCN 224199062UCN-224199062-U

Abstract

The utility model discloses a worm gear self-locking jack for testing and assembling a universal coupler, which relates to the technical field of jacks, wherein a shell is arranged at the upper part of a base, a worm gear is arranged at the bottom of an inner cavity of the shell, a sliding sleeve is arranged at the upper part of the inner cavity of the shell, a lifting screw rod which is coaxially arranged with the sliding sleeve and is driven to rotate by the worm gear is arranged in the sliding sleeve, a nut which is in threaded fit with the lifting screw rod and drives the sliding sleeve to perform lifting adjustment is arranged on a lifting screw rod body, a limiting piece which can rotate and adjust towards the lifting screw rod is hinged on the inner wall of the sliding sleeve, a pushing mechanism for pushing the upper end of the limiting piece to collide with the lifting screw rod and limiting and fixing the lifting screw rod which drops accidentally is arranged on the inner wall of the sliding sleeve, a worm meshed with the worm gear is arranged on one side of the lower part of the shell, and a wireless control button for wirelessly controlling the pushing mechanism is arranged on the worm rod body.

Inventors

  • Liu Hanshe
  • LIU YUNTING
  • WANG XI
  • MAO QING
  • YU ZHONGLIANG
  • FAN LI
  • Jiao Jianting

Assignees

  • 洛阳市永基重载齿轮有限公司

Dates

Publication Date
20260505
Application Date
20250530

Claims (7)

  1. 1. The utility model provides a worm wheel auto-lock jack for universal coupling test assembly, including base (11), wherein base (11) upper portion is equipped with casing (2), casing (2) inner chamber bottom is equipped with worm wheel (8), casing (2) inner chamber upper portion is equipped with slip cap (3), be equipped with in slip cap (3) with slip cap (3) coaxial setting, and through worm wheel (8) drive pivoted lift screw (6), be equipped with on the body of rod of lift screw (6) with lift screw (6) screw-thread fit, and drive slip cap (3) and go on lifting adjustment's nut (7), articulated on slip cap (3) inner wall be connected with can rotate spacing piece (5) of adjusting towards lift screw (6), still be equipped with on the slip cap (3) inner wall be used for promoting spacing piece (5) upper end with lift screw (6) conflict, and carry out spacing fixed pushing mechanism (4) to unexpected lift screw (6) that drop down, casing (2) lower part one side is equipped with worm (10) with the body of rod (9) of rod that is used for carrying out wireless control to pushing mechanism (4).
  2. 2. The worm wheel self-locking jack for testing and assembling the universal coupler according to claim 1, wherein the upper end of the limiting piece (5) is provided with a tooth surface matched with threads on the lifting screw (6).
  3. 3. The worm wheel self-locking jack for testing and assembling the universal coupling according to claim 2, wherein the inner wall of the sliding sleeve (3) is provided with a groove (12), the limiting piece (5) is arranged in the groove (12) and is hinged with the groove (12), and the inner bottom surface of the groove (12) is provided with a mounting opening (14) for mounting the pushing mechanism (4).
  4. 4. The worm wheel self-locking jack for testing and assembling the universal coupler according to claim 3, wherein a tension spring (17) is arranged between the inner bottom surface of the groove (12) and the limiting piece (5), one end of the tension spring (17) is connected with the lower side of the inner bottom surface of the groove (12), and the other end of the tension spring (17) is connected with the upper side of the limiting piece (5).
  5. 5. The worm wheel self-locking jack for testing and assembling the universal coupling, as claimed in claim 3, wherein the pushing mechanism (4) comprises a mounting seat (22), an electric telescopic rod (20) for pushing the limiting piece (5) to deflect towards the lifting screw (6) is arranged on one end face of the mounting seat (22), the electric telescopic rod (20) is in control connection with the wireless control button (9), a battery groove (19) is formed in one side of the mounting seat (22), and a storage battery (18) for supplying power to the electric telescopic rod (20) is arranged in the battery groove (19).
  6. 6. The worm wheel self-locking jack for testing and assembling the universal coupling, as set forth in claim 5, characterized in that the mounting opening (14) is of a circular structure and penetrates through the sliding sleeve (3), the mounting seat (22) is of a columnar structure and is in threaded connection with the inner wall of the mounting opening (14), the other end of the mounting seat (22) is provided with a screwing opening (24), the outer wall of the shell (2) is provided with a through opening (16) which is correspondingly matched with the mounting opening (14) and penetrates through the shell (2), and the sealing plug (15) is detachably arranged at the outer end of the through opening (16).
  7. 7. The worm wheel self-locking jack for testing and assembling the universal coupler according to claim 6, wherein the port, close to the lifting screw (6), of the mounting port (14) is provided with an inner flange (13), and the end face of a mounting seat (22) provided with an electric telescopic rod (20) is provided with an annular notch (23) matched with the inner flange (13).

Description

Worm wheel self-locking jack for testing and assembling universal coupling Technical Field The utility model relates to the technical field of jacks, in particular to a worm wheel self-locking jack for testing and assembling a universal coupling. Background The universal coupling (such as metallurgy, heavy coupling for boats and ships) is under test, often needs the jack to apply radial force or finely tune as appurtenance, in the assembly process, also needs the jack to assist the position of adjustment axle or flange, nevertheless in the use of jack, the lifting screw directly bears load weight, although possess certain auto-lock protective capability in the jack, still has following problem in the in-service use: 1. The existing jack lacks an active protection mechanism for self-locking failure, once a worm and gear transmission system fails, a lifting screw rod can fall instantly, and the operation safety is threatened; 2. The lifting screw is dependent on the self-locking property of the trapezoidal threads, so that the lifting screw is easy to loosen when supported under the vibration or unbalanced load working condition, and therefore, the lifting screw is caused to fall accidentally, and potential safety hazards exist; Therefore, a worm wheel self-locking jack for testing and assembling the universal coupling, which can overcome the defects, is urgently needed. Disclosure of utility model In order to overcome the defects in the background art, the utility model discloses a worm wheel self-locking jack for testing and assembling a universal coupler, which effectively prevents the lifting screw from accidentally falling after self-locking failure by automatically limiting and locking the lifting screw, and provides powerful guarantee for safe and stable support of the universal coupler. In order to achieve the above purpose, the utility model adopts the following technical scheme: The utility model provides a universal joint tests worm wheel auto-lock jack for assembly, the on-line screen storage device comprises a base, base upper portion is equipped with the casing, casing inner chamber bottom is equipped with the worm wheel, casing inner chamber upper portion is equipped with the slip cover, be equipped with in the slip cover with slip cover coaxial setting, and through worm wheel drive pivoted lifting screw, be equipped with on the lifting screw body of rod with lifting screw-thread fit, and drive the slip cover go on lifting adjustment's nut, it can be towards lifting screw rotation regulation's spacing piece to articulate on the slip cover inner wall, still be equipped with on the slip cover inner wall and be used for promoting spacing piece upper end and lifting screw inconsistent, and carry out spacing fixed pushing mechanism to the lifting screw that unexpected drop down, casing lower part one side is equipped with the worm with worm wheel meshing, be equipped with the wireless control button who is used for carrying out wireless control to pushing mechanism on the worm body of rod. Further, the upper end of the limiting piece is provided with a tooth surface matched with the threads on the lifting screw. Further, the inner wall of the sliding sleeve is provided with a groove, the limiting piece is arranged in the groove and is hinged with the groove, and the bottom surface in the groove is provided with a mounting opening for mounting the pushing mechanism. Further, a tension spring is arranged between the inner bottom surface of the groove and the limiting piece, one end of the tension spring is connected with the lower side of the inner bottom surface of the groove, and the other end of the tension spring is connected with the upper side of the limiting piece. Further, pushing mechanism includes the mount pad, and mount pad one end terminal surface is equipped with the electric telescopic handle that is used for promoting spacing piece towards lifting screw deflection, and electric telescopic handle is connected with wireless control button control, and mount pad one side is equipped with and is used for the battery jar, is equipped with the battery that is used for supplying power to electric telescopic handle in the battery jar. Further, the installation mouth is circular structure, runs through the slip cap setting, and the mount pad is columnar structure, and with installation mouth inner wall threaded connection, the mount pad other end is equipped with soon and twists the mouth, and the casing outer wall is equipped with and corresponds the adaptation with the installation mouth, and runs through the opening of casing, and opening outer end demountable installation has the sealing plug. Further, an inner folded edge is arranged at the port, close to the lifting screw rod, of the mounting port, and an annular notch matched with the inner folded edge is arranged on the end face of the mounting seat provided with the electric telescopic rod. Compared with the prior art, the utility mode