CN214369043U

CN214369043U - Novel anti-blocking mechanism device for leg supporting lead screw

Info

Publication number: CN214369043U
Application number: CN202120547350.5U
Authority: CN
Inventors: 陈军; 胡若美
Original assignee: Chuzhou Yishen Machinery Manufacturing Co ltd
Current assignee: Chuzhou Yishen Machinery Manufacturing Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-10-08
Anticipated expiration: 2031-03-16

Abstract

The utility model relates to the technical field of mechanical leg supporting, in particular to a novel leg supporting lead screw anti-jamming mechanism device, which comprises a supporting leg component, a stand column component, a lead screw component, a bearing gland, a hydraulic motor and a ground foot seat plate, wherein the stand column component comprises a stand column body and a bearing nut, the whole supporting leg component is of an annular structure, the stand column body is arranged inside the supporting leg component, the bearing nut is arranged in the stand column body and is tightly pressed and fixed, and the bottom of the supporting leg component is connected with the ground foot seat plate; the lead screw component comprises a force transmission lead screw, the lower end of the force transmission lead screw is connected with a force bearing nut through a thread structure, and the upper end of the force transmission lead screw is connected with a shaft head of the hydraulic motor; the bearing gland is fixed with the end face of the supporting leg assembly through a first fixing screw, and the hydraulic motor is arranged on the outer side of the bearing gland; the utility model discloses simple structure, the motion is steady, reliable, props the whole duty cycle of leg interior maintenance and the maintenance of exempting from, safe operation.

Description

Novel anti-blocking mechanism device for leg supporting lead screw

Technical Field

The utility model relates to a machinery props leg technical field, specifically is a novel prop dead mechanism of leg lead screw anti-sticking device.

Background

With the development of mechanical technology, more and more devices need to flexibly change working places to be used in different scenes; after the equipment is moved to a working place, the equipment needs to be fixed under the action of the supporting legs, and when the equipment needs to be moved, the supporting legs are retracted so as to be moved quickly.

The existing leveling leg supporting structure adopts a cylindrical bearing or two identical conical bearings to completely fix a screw rod, a bearing nut and a structure thereof on a central axis, when a supporting leg upwards supports a load, because the landing place of a baseboard is not necessarily absolutely horizontal, the load born by an upright post can be offset in the lifting process of the supporting leg, the coaxiality of the bearing nut and a force transmission screw rod is damaged, and the bearing nut and the force transmission screw rod are blocked again because the load direction of a contact surface is uneven.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel prop dead mechanism of leg lead screw anti-sticking device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel anti-jamming mechanism device for a leg supporting lead screw comprises a support leg assembly, an upright post assembly, a lead screw assembly, a bearing gland, a hydraulic motor and a foundation seat plate, wherein the upright post assembly comprises a force bearing nut and an upright post body; the lead screw component comprises a force transmission lead screw, the lower end of the force transmission lead screw is connected with a force bearing nut through a thread structure, and the upper end of the force transmission lead screw is connected with a shaft head of the hydraulic motor; the bearing gland is fixed with the end face of the supporting leg assembly through a first fixing screw, and the hydraulic motor is arranged on the outer side of the bearing gland; the bottom end of the upright post body is provided with a spherical supporting leg, and the spherical supporting leg is in spherical connection with the foundation seat plate.

Preferably, the top end of the force transmission screw rod is sleeved with a cylindrical thrust bearing and a conical thrust bearing, the conical thrust bearing and the force transmission screw rod are clamped mutually, and the cylindrical thrust bearing and the bearing gland are mutually abutted.

Preferably, be provided with the pulse dish between cylinder thrust bearing and the circular cone thrust bearing, the pulse dish transversely is provided with the second set screw, second set screw and supporting leg subassembly reciprocal anchorage.

Preferably, a telescopic groove is formed in the upright post body, and the bearing nut is arranged in the telescopic groove; and a nut gland is arranged on the upper side of the bearing nut and is mutually fixed with the telescopic groove of the upright post body through a threaded structure.

Preferably, the inner side of the supporting leg assembly is provided with an anti-rotation flat key, the outer side of the stand column body is provided with a clamping groove, and the anti-rotation flat key is arranged in the clamping groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model prevents the bearing nut and the force transmission lead screw from being damaged due to the uneven load direction of the contact surface after the coaxiality of the bearing nut and the force transmission lead screw is damaged by the interaction of the built-in cylindrical thrust bearing and the conical thrust bearing, thereby causing the blocking phenomenon; the device has simple integral structure, stable and reliable motion, and is free from maintenance in the whole working period of the leg support, thereby ensuring the safe operation of the leg support.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an exploded view of the column assembly and the lead screw assembly of the present invention;

reference numbers in the figures: 1. a support leg assembly; 2. a column assembly; 3. a lead screw assembly; 4. a bearing gland; 5. a hydraulic motor; 6. a foundation seat plate; 7. a first set screw; 8. a cylindrical thrust bearing; 9. a pulse disk; 10. a conical thrust bearing; 11. a force transfer lead screw; 12. a nut gland; 13. a force bearing nut; 14. a second set screw; 15. a column body; 16. prevent changeing the parallel key.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a novel anti-jamming mechanism device for a leg supporting lead screw comprises a supporting leg assembly 1, an upright post assembly 2, a lead screw assembly 3, a bearing gland 4, a hydraulic motor 5 and a foundation plate 6, wherein the upright post assembly 2 comprises a bearing nut 13 and an upright post body 15, the supporting leg assembly 1 is integrally of an annular structure, the upright post body 15 is arranged inside the supporting leg assembly 1, and the bearing nut 13 is installed in the upright post body 15 and is pressed and fixed; the lead screw component 3 comprises a force transmission lead screw 11, the lower end of the force transmission lead screw 11 is connected with a bearing nut 13 through a threaded structure, and the upper end of the force transmission lead screw 11 is connected with a shaft head of the hydraulic motor 5; the bearing gland 4 is fixed with the end face of the supporting leg assembly 1 through a first fixing screw 7, and the hydraulic motor 5 is arranged on the outer side of the bearing gland 4; the bottom end of the upright post body 15 is provided with a spherical supporting leg, and the spherical supporting leg is in spherical connection with the foundation seat plate 6.

Furthermore, a cylindrical thrust bearing 8 and a conical thrust bearing 10 are sleeved at the top end of the force transmission screw rod 11, the conical thrust bearing 10 and the force transmission screw rod 11 are clamped with each other, and the cylindrical thrust bearing 8 and the bearing gland 4 are mutually abutted.

Further, an impulse disc 9 is arranged between the cylindrical thrust bearing 8 and the conical thrust bearing 10, a second fixing screw 14 is transversely arranged on the impulse disc 9, and the second fixing screw 14 and the supporting leg assembly 1 are fixed to each other.

Further, a telescopic groove is formed in the upright post body 15, and the bearing nut 13 is arranged in the telescopic groove; the upper side of the bearing nut 13 is provided with a nut gland 12, and the nut gland 12 is mutually fixed with a telescopic groove of the upright post body 15 through a threaded structure.

Furthermore, the supporting leg assembly 1 is provided with an anti-rotation flat key 16 on the inner side, a clamping groove is formed in the outer side of the stand column body 15, and the anti-rotation flat key 16 is arranged in the clamping groove.

The working principle is as follows: the shaft head of the hydraulic motor 5 is connected with the hole of the force transmission lead screw 11, and the first fixing screw 7 is connected with the bearing cover 4 and the supporting leg assembly 1; the bearing gland 4 compresses the cylindrical thrust bearing 8, the top end of the force transmission screw rod 11 is sleeved with the cylindrical thrust bearing 8 and the conical thrust bearing 10, the conical thrust bearing 10 and the force transmission screw rod 11 are clamped with each other, and the cylindrical thrust bearing 8 and the bearing gland 4 are propped against each other; the bearing nut 13 is arranged in a telescopic groove at the top of the upright post body 15 and is fixedly pressed with the telescopic groove through the nut gland 12 by using external threads; the bottom end of the upright post body 15 is provided with a spherical supporting leg which is in spherical connection with the foundation seat plate 6; the combined use of the cylindrical thrust bearing 8 and the conical thrust bearing 10 effectively ensures the coaxial alignment of the force transmission screw rod 11 and the bearing nut 13 in the whole-process movement lifting process, and effectively solves the clamping phenomenon caused by the unbalance loading between the force transmission screw rod 11 and the bearing nut 13.

When the device is used, the hydraulic motor 5 is started to rotate, the hydraulic motor 5 drives the force transmission screw rod 11 to rotate, the force bearing nut 13 moves downwards in a straight line, and the upright post component 2, the foundation seat plate 6, the supporting leg component 1 and corresponding fixing screws of the supporting leg component are driven to move downwards at the same time until the upright post component is lifted to the right position; when the ground is stressed, the interaction of the cylindrical thrust bearing 8 and the conical thrust bearing 10 enables the force transmission screw rod 11 to move on the axis all the time, so that the movement eccentricity is prevented, and the mechanism is blocked; the hydraulic motor 5 rotates reversely, the bearing nut 13 moves linearly upwards to drive the upright post component 2, the foundation seat plate 6, the supporting leg component 1 and the corresponding fixing screws to move upwards simultaneously until the leg is folded in place.

The cylindrical thrust bearing 8, the conical thrust bearing 10 and the interaction thereof prevent the clamping phenomenon caused by the uneven load direction of the contact surface between the force transmission screw rod 11 and the bearing nut 13 after the coaxiality of the force transmission screw rod 11 and the bearing nut 13 is damaged. Simple structure, the motion is steady, and is reliable, props the whole duty cycle of leg and exempts from to maintain and maintain.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel prop dead mechanism of anti-sticking of leg lead screw device which characterized in that: the supporting leg assembly comprises a supporting leg assembly (1), an upright post assembly (2), a screw rod assembly (3), a bearing gland (4), a hydraulic motor (5) and a foundation seat plate (6), wherein the upright post assembly (2) comprises a bearing nut (13) and an upright post body (15), the supporting leg assembly (1) is integrally of an annular structure, the upright post body (15) is arranged inside the supporting leg assembly (1), and the bearing nut (13) is installed in the upright post body (15) and is pressed and fixed; the lead screw component (3) comprises a force transmission lead screw (11), the lower end of the force transmission lead screw (11) is connected with a force bearing nut (13) through a thread structure, and the upper end of the force transmission lead screw (11) is connected with a shaft head of the hydraulic motor (5); the bearing gland (4) is fixed with the end face of the supporting leg assembly (1) through a first fixing screw (7), and the hydraulic motor (5) is arranged on the outer side of the bearing gland (4); the bottom end of the upright post body (15) is provided with a spherical supporting leg, and the spherical supporting leg is in spherical connection with the foundation seat plate (6).

2. The novel leg-supporting lead screw anti-jamming mechanism device as claimed in claim 1, wherein: the top end of the force transmission lead screw (11) is sleeved with a cylindrical thrust bearing (8) and a conical thrust bearing (10), the conical thrust bearing (10) and the force transmission lead screw (11) are clamped with each other, and the cylindrical thrust bearing (8) and the bearing gland (4) are mutually abutted.

3. The novel leg-supporting lead screw anti-jamming mechanism device as claimed in claim 2, wherein: be provided with pulse dish (9) between cylinder thrust bearing (8) and circular cone thrust bearing (10), pulse dish (9) transversely are provided with second set screw (14), second set screw (14) and supporting leg subassembly (1) reciprocal anchorage.

4. The novel leg-supporting lead screw anti-jamming mechanism device as claimed in claim 1, wherein: a telescopic groove is formed in the upright post body (15), and the bearing nut (13) is arranged in the telescopic groove; the upper side of the bearing nut (13) is provided with a nut gland (12), and the nut gland (12) is mutually fixed with a telescopic groove of the upright post body (15) through a threaded structure.

5. The novel leg-supporting lead screw anti-jamming mechanism device as claimed in claim 1, wherein: the anti-rotation flat key is arranged on the inner side of the supporting leg assembly (1), a clamping groove is formed in the outer side of the stand column body (15), and the anti-rotation flat key (16) is arranged in the clamping groove.