Manual locking device of trapezoidal lead screw pair and gear pair combined structure

Abstract

A manual locking device with a trapezoidal lead screw pair and gear pair combined structure aims to solve the problems that existing equipment is tedious in operation, poor in locking stability and incapable of being locked at any position, and the locking precision and stability of certain specific mechanical equipment are possibly affected. The equipment box body is provided with an equipment rotating part and a bracket, the bracket is provided with an integrated nut, a trapezoidal lead screw is arranged in the integrated nut and is connected with a manual operation interface, the bracket is provided with a pinion, the trapezoidal lead screw is connected with the pinion, and the equipment rotating part is fixedly provided with a bull gear; the locking device can be connected into mechanical transmission equipment through manual operation, locking of the mechanical transmission equipment at any position in the load state is achieved, rapid dismounting and mounting of modules such as an upstream motor and a speed reducer of an equipment transmission chain are conducted, the mechanical transmission equipment is driven away through manual operation, unlocking of the mechanical transmission equipment in the load state is achieved, and the mechanical transmission equipment can be unlocked. And the equipment can operate normally.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission locking of mechanical transmission equipment, in particular to a manual locking device of a combined structure of a trapezoidal lead screw pair and a gear pair. Background Art

[0002] During the maintenance of mechanical transmission equipment, in order to prevent the transmission parts of the equipment from moving or rotating and ensure the safety of equipment maintenance, it is often necessary to lock the transmission mechanism before performing maintenance operations. Existing mechanical transmission equipment usually uses bolts and nuts, ratchet pawls, plug-in fixing pins, etc. to achieve manual locking and unlocking. However, these methods have some shortcomings, such as cumbersome operation, poor locking stability, and inability to lock at any position. In addition, for certain specific mechanical equipment, the locking accuracy and stability of the equipment may be affected. Utility Model Content

[0003] In order to solve the problems that the existing equipment is cumbersome to operate, has poor locking stability, and cannot be locked at any position, for certain specific mechanical equipment, the locking accuracy and stability of the equipment may be affected.

[0004] The utility model provides a manual locking device of a combined structure of a trapezoidal screw pair and a gear pair, comprising an equipment box, wherein the equipment box is penetrated by an equipment rotating part, a bracket is provided on the surface of the equipment box, the bracket is provided with a U-shaped opening, an integrated nut is provided in the middle of the bottom of the U-shaped opening of the bracket, a trapezoidal screw is provided in the integrated nut, the trapezoidal screw and the integrated nut of the bracket form a trapezoidal screw pair, one end of the trapezoidal screw is outside the bracket, and the other end is inside the bracket, the trapezoidal screw is connected to a manual operation interface outside the bracket, a small gear is provided in the U-shaped opening of the bracket, the trapezoidal screw is ball-jointed to the small gear in the bracket, a large gear is fixedly provided on the equipment rotating part above the equipment box, and the small gear meshes with the large gear when the equipment is locked.

[0005] A protective cover is provided on the equipment box body, and the protective cover includes a large gear, a small gear bracket and a trapezoidal lead screw.

[0006] The trapezoidal lead screw ball joint end is an outer spherical surface, and the pinion gear rotation center is an inner spherical surface.

[0007] The bracket is provided with a limiting surface to limit the angle of the pinion and support the meshing torque.

[0008] The pinion gear limit angle includes the gear tooth portion.

[0009] The tooth tops of the pinion gear and the gear are both provided with fillets.

[0010] The utility model has the following advantages and effects:

[0011] 1. Easy and flexible operation, can achieve fast locking and unlocking;

[0012] 2. Good locking stability, reliable locking and unlocking can be achieved;

[0013] 3. The gear pair can be engaged and disengaged by self-adjusting angles and can be locked at any position;

[0014] 4. The locking accuracy is high, and the cumulative error of the trapezoidal screw pair, gear pair and meshing self-adjusting angle is small.

[0015] 5. Due to the reverse self-locking characteristics of the trapezoidal screw pair and the torque-increasing characteristics of the gear pair, it can withstand a large load after locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model.

[0017] Figure 2 It is the left view of the utility model.

[0018] Figure 3 A top view of the utility model.

[0019] Figure 4 AA sectional view of the present utility model.

[0020] Figure 5 The BB cross-sectional view of the utility model in the unlocked state.

[0021] Figure 6 The BB cross-sectional view of the utility model in the locked state.

[0022] Explanation of the reference numerals: 1-equipment rotating part, 2-equipment housing, 3-protective cover, 4-protective cover screw, 5-trapezoidal screw, 6-bracket, 7-bracket screw, 8-small gear, 9-large gear. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] like Figure 1 to Figure 6As shown, a manual locking device of a combination structure of a trapezoidal screw pair and a gear pair comprises an equipment case 2, wherein the equipment case 2 is penetrated by an equipment rotating part 1, a bracket 6 is provided on the surface of the equipment case 2, the bracket 6 is provided with a U-shaped opening, an integrated nut is provided in the middle of the bottom of the U-shaped opening of the bracket 6, a trapezoidal screw 5 is provided in the integrated nut, the trapezoidal screw 5 and the integrated nut of the bracket 6 form a trapezoidal screw pair, one end of the trapezoidal screw 5 is outside the bracket 6, and the other end is inside the bracket 6, the trapezoidal screw 5 is connected to a manual operation interface outside the bracket 6, a pinion 8 is provided in the U-shaped opening of the bracket 6, the trapezoidal screw 5 is ball-jointed to the pinion 8 in the bracket 6, a large gear 9 is fixedly provided on the equipment rotating part 1 above the equipment case 2, and the small gear 8 engages with the large gear 9 when the equipment is locked.

[0025] The device box 2 is provided with a protective cover 3 , and the protective cover 3 includes a large gear 9 , a small gear bracket 6 and a trapezoidal lead screw 5 .

[0026] The ball joint end of the trapezoidal lead screw 5 is an outer spherical surface, and the rotation center of the pinion gear 8 is an inner spherical surface.

[0027] The bracket 6 is provided with a limiting surface to limit the angle of the pinion 8 and support the meshing torque.

[0028] The pinion 8 has a gear tooth portion within the limiting angle.

[0029] The tooth tops of the pinion gear 8 and the gear 9 are both provided with fillets.

[0030] During the installation process, the bracket 6 is provided with an integrated nut, which is fixed on the equipment box 2 by the bracket screw 7; the trapezoidal screw 5 and the bracket 6 form a trapezoidal screw pair, which is installed in the bracket 6, and the exposed end is a manual operation interface; the small gear 8 is connected to the trapezoidal screw 5 through a ball joint and installed in the bracket 6, and is engaged with the large gear 9 when locked and separated from the large gear 9 when unlocked; the large gear 9 is installed on the equipment rotating part 1. The protective cover 3 is fixed to the equipment box 2 by the protective cover screw 4.

[0031] In the above structure, a limiting surface is designed on the bracket 6 to limit the angle and support the meshing torque of the pinion 8; the ball joint end of the trapezoidal screw 5 is an outer spherical surface, and the rotation center of the pinion 8 is an inner spherical surface. The pinion 8 can move linearly with the trapezoidal screw 5 through the ball joint pair; the pinion 8 only needs to retain the gear teeth inside the limiting angle; the tooth tops of the pinion 8 and the large gear 9 are designed with rounded corners, which makes it easier for the gear pair to self-adjust the angle and slide into meshing.

[0032] The working process of this utility model:

[0033] The utility model has two states, locked and unlocked, which can be switched manually.

[0034] The utility model is normally in an initial unlocking state, that is, the small gear 8 and the large gear 9 are completely separated, and the mechanical transmission device operates normally.

[0035] When the mechanical transmission equipment needs to be locked, the trapezoidal screw 5 is manually rotated through the manual operation interface to make it rotate and move linearly. At the same time, the trapezoidal screw 5 drives the pinion 8 to move linearly synchronously through the end ball joint connection, so that the pinion 8 is fully meshed with the large gear 9 connected to the equipment rotating part 1 at any rotation angle under the cooperation of the angle limit of the limit surface of the bracket 6 and the self-adjustment of the tooth top fillet angle. After meshing, due to the reverse self-locking characteristics of the trapezoidal screw pair and the support of the limit surface of the bracket 6, the mechanical transmission equipment can be locked at any position under load. At this time, the motor and reducer on the equipment can be disassembled and installed.

[0036] When the mechanical transmission device needs to be unlocked, the trapezoidal screw 5 is manually rotated in the reverse direction through the manual operation interface to make it rotate in the reverse direction and move in the reverse direction. At the same time, the trapezoidal screw 5 drives the pinion 8 to move in the reverse direction synchronously through the end ball joint connection, so that the pinion 8 is completely separated from the large gear 9 connected to the device rotating part 1 to the initial unlocking position under the cooperation of the limit surface of the bracket 6, so as to realize the unlocking of the mechanical transmission device. At this time, the device can operate normally.

[0037] The utility model discloses a manual locking device of a combined structure of a trapezoidal screw pair and a gear pair, which has the advantages and effects of simple and flexible operation, stable and reliable locking, lockable at any position, high locking precision, and large load bearing, etc. The device is suitable for different types of mechanical transmission equipment and has good practicality and broad application prospects.

Claims

1. A manual locking device of a combined structure of a trapezoidal screw pair and a gear pair, comprising a device housing (2), wherein the device housing (2) is penetrated by a device rotating part (1), characterized in that: A bracket (6) is provided on the surface of the equipment case (2), the bracket (6) is provided with a U-shaped opening, an integrated nut is provided at the middle of the bottom of the U-shaped opening of the bracket (6), a trapezoidal screw (5) is provided inside the integrated nut, the trapezoidal screw (5) and the integrated nut of the bracket (6) form a trapezoidal screw pair, one end of the trapezoidal screw (5) is outside the bracket (6), and the other end is inside the bracket (6), the trapezoidal screw (5) is connected to a manual operation interface outside the bracket (6), a small gear (8) is provided inside the U-shaped opening of the bracket (6), the trapezoidal screw (5) is ball-jointedly connected to the small gear (8) inside the bracket (6), a large gear (9) is fixedly provided on the equipment rotating part (1) above the equipment case (2), and the small gear (8) engages with the large gear (9) when the equipment is locked.

2. A manual locking device of a combination structure of a trapezoidal screw pair and a gear pair as claimed in claim 1, characterized in that: A protective cover (3) is provided on the equipment box (2), and the protective cover (3) includes a large gear (9), a small gear bracket (6) and a trapezoidal lead screw (5).

3. A manual locking device of a combination structure of a trapezoidal screw pair and a gear pair as claimed in claim 1, characterized in that: The ball joint end of the trapezoidal lead screw (5) is an outer spherical surface, and the rotation center of the pinion gear (8) is an inner spherical surface.

4. A manual locking device of a combination structure of a trapezoidal screw pair and a gear pair as claimed in claim 1, characterized in that: The bracket (6) is provided with a limiting surface for performing angle limiting and meshing torque support on the pinion (8).

5. A manual locking device of a combination structure of a trapezoidal screw pair and a gear pair as claimed in claim 1, characterized in that: The pinion (8) has a gear tooth portion within the limiting angle.

6. A manual locking device of a combination structure of a trapezoidal screw pair and a gear pair as claimed in claim 1, characterized in that: The tooth tops of the small gear (8) and the large gear (9) are both provided with rounded corners.

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