CN219384622U - Large-span balance lifting mechanism realized by double-screw and synchronous belt - Google Patents

Abstract

The utility model discloses a double-screw and synchronous belt realization large-span balance lifting mechanism, which comprises a fixed table, wherein a stepping motor is arranged at the top of the fixed table, screw bases are arranged at the top of the fixed table at two sides of the front end of the stepping motor, screw rods are arranged in the screw bases at two sides, the fixed table is provided with synchronous pulleys at the front side of the stepping motor and at the top ends of the two screw rods, the rotating ends of the screw tops at the two sides, the synchronous pulleys and the output ends inside the stepping motor are driven by the arranged synchronous belt, screw nuts are arranged at two sides, which are close to the center, of the lifting table, the bottom ends of the screw rods at the two sides are respectively threaded and connected in the screw nuts at the two sides, linear guide rails are fixedly arranged at the bottoms of the centers of the two sides of the fixed table, and guide rail sliding blocks are arranged at the centers of the two sides of the lifting table. According to the utility model, the two groups of screw rods work simultaneously, so that the driving force received by the lifting platform can be balanced under the condition of large span, and the lifting platform can perform stable and precise movement under the guiding action of the linear guide rail, and the noise is low.

Description

Large-span balance lifting mechanism realized by double-screw and synchronous belt

Technical Field

The utility model relates to the technical field of mechanical transmission, in particular to a long-span balanced lifting mechanism realized by double-screw and synchronous belts.

Background

The current industry manufacturing field can use a large amount of mechanical members to cooperate the operation, wherein elevating system is the mechanism that uses commonly used, its main use carries out long distance elevating system to other mechanisms, and guarantee the degree of accuracy of its translation during, and then most elevating system can all adopt the installation guide rail slider in elevating platform both sides to cooperate linear guide to go up and down, and then the circumstances that the skew about does not take place in limiting its sliding process appears, but linear guide is when one side sliding structure atress is great in the inside use of large-span elevating system, or when one side sliding structure receives to the different power of slip direction, also can appear this side guide rail slider and linear guide contact frictional force grow, in the long time, will appear elevating platform both sides structure unsynchronized condition appear, and then influence follow-up mechanism operation precision.

Based on the above, the utility model designs a double-screw synchronous belt-added large-span balanced lifting mechanism to solve the problems.

Disclosure of Invention

The utility model aims to provide a double-screw synchronous belt-added large-span balance lifting mechanism, which is used for solving the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a double screw adds hold-in range and realizes balanced elevating system of large-span, includes the fixed station, its characterized in that, be provided with the elevating platform under the fixed station, step motor is installed at the fixed station top, the fixed station top in the lead screw seat is all installed to the both sides of step motor front end, both sides the lead screw is all installed to the lead screw seat inside, the fixed station in synchronous pulley is all installed on step motor front side and two the top of lead screw, both sides lead screw top rotating end, synchronous pulley with the synchronous belt looks transmission through setting up between the inside output of step motor, screw nut is all installed to the both sides that are close to the center on the elevating platform, both sides the screw bottom respectively the screw thread cross-under in the inside of screw nut, the equal fixed mounting of bottom at fixed station both sides center has the linear guide rail, the guide rail slider is all installed at elevating platform both sides center.

As a further scheme of the utility model, the guide rail sliding blocks at two sides are respectively and slidably arranged on the linear guide rails at two sides.

As a further scheme of the utility model, the bottom end of the synchronous pulley in the middle is provided with the tensioning sliding block, and the whole tensioning sliding block is arranged in the mounting groove arranged at the top of the fixed table through screws.

As a further scheme of the utility model, a plurality of screw fixing holes are formed in the mounting groove at equal intervals.

Compared with the prior art, the utility model has the beneficial effects that:

(1) When the stepping motor rotates, the synchronous belt is driven by the synchronous belt to drive the synchronous belt wheels on the lead screws, so that the lead screws on two sides synchronously rotate, the two groups of lead screw components have the same parameters and are simultaneously driven by the synchronous belt, so that the rotating speed is the same, the lead screws drive the lead screw nut and the lifting platform to do lifting motion, and the driving force born by the lifting platform can be balanced under the condition of large span due to the simultaneous operation of the two groups of lead screws, and the lifting platform can do stable and precise motion under the guiding action of the linear guide rail, so that the noise is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms of "top", "bottom", "one side", "the other side", "front", "rear", "middle portion", "inner", "top", "bottom", etc., are directions or positional relationships based on the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

FIG. 1 is a front isometric view of a double screw plus timing belt to achieve a large span balanced lift mechanism according to the present utility model;

fig. 2 is a schematic view of a structure of a oblique lower view angle of a double-screw synchronous belt-added large-span balanced lifting mechanism according to the utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a fixed table; 2. a stepping motor; 3. a screw rod seat; 4. a synchronous pulley; 5. a synchronous belt; 6. a screw rod; 7. a lead screw nut; 8. a lifting table; 9. a linear guide rail; 10. tensioning the sliding block; 11. a mounting groove; 12. and a guide rail sliding block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-2, the utility model provides a double-screw synchronous belt and large-span balance lifting mechanism, which comprises a fixed table 1 and is characterized in that a lifting table 8 is arranged under the fixed table 1, a stepping motor 2 is arranged at the top of the fixed table 1, screw bases 3 are respectively arranged at the two sides of the front end of the stepping motor 2 at the top of the fixed table 1, screw rods 6 are respectively arranged in the screw bases 3 at the two sides, synchronous pulleys 4 are respectively arranged at the front side of the stepping motor 2 and the top ends of the two screw rods 6 at the two sides, the rotation ends of the top of the screw rods 6, the synchronous pulleys 4 and the internal output end of the stepping motor 2 are in transmission through a synchronous belt 5 arranged, screw nuts 7 are respectively arranged at the two sides of the lifting table 8 near the center, linear guide rails 9 are respectively arranged at the bottoms of the centers of the two sides of the fixed table 1, and guide rail sliders 12 are respectively arranged at the centers of the two sides of the lifting table 8.

Through the scheme of the utility model, the guide rail sliding blocks 12 on the two sides are respectively and slidably arranged on the linear guide rails 9 on the two sides.

According to the scheme of the utility model, the tensioning sliding block 10 is arranged at the bottom end of the synchronous pulley 4 in the middle, and the whole tensioning sliding block 10 is arranged in the mounting groove 11 arranged at the top of the fixed table 1 through screws.

Through the above scheme of the utility model, a plurality of screw fixing holes are formed in the mounting groove 11 at equal intervals.

In practical application, when the stepping motor 2 rotates, the synchronous belt 5 is driven, the synchronous belt 5 drives the synchronous belt pulley 4 on the screw rod 6, so that the screw rods 6 at two sides synchronously rotate, the two groups of screw rod 6 have the same component parameters, and the two groups of screw rod 6 are simultaneously driven by the synchronous belt 5, so that the rotating speeds are the same, and the screw rod 6 drives the screw rod nut 7 and the lifting table 8 to do lifting motion. Because the two groups of screw rods 6 work simultaneously, the driving force received by the lifting platform 8 can be balanced under the condition of large span, and the lifting platform 8 can perform stable and precise movement with low noise due to the guiding function of the linear guide rail 9.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (4)

1. The utility model provides a double screw adds hold-in range and realizes balanced elevating system of large-span, includes fixed station (1), its characterized in that, be provided with elevating platform (8) under fixed station (1), step motor (2) are installed at fixed station (1) top, fixed station (1) top in lead screw seat (3) are all installed to the both sides of step motor (2) front end, both sides lead screw seat (3) internally mounted lead screw (6), fixed station (1) in synchronous pulley (4) are all installed on step motor (2) front side and two the top of lead screw (6), both sides lead screw (6) top rotation end synchronous pulley (4) with through the hold-in range (5) looks transmission that sets up between step motor (2) internal output end, lead screw nut (7) are all installed to the both sides on elevating platform (8) near the both sides of center lead screw nut (6) bottom respectively the thread cross-under both sides lead screw nut (7) inside, the bottom of fixed station (1) both sides (1) all install straight line guide (12) and install center slider (12).

2. The double-screw synchronous belt-added large-span balanced lifting mechanism according to claim 1, wherein the guide rail sliding blocks (12) on two sides are respectively and slidably arranged on the linear guide rails (9) on two sides.

3. The double-screw synchronous belt-added large-span balance lifting mechanism according to claim 1, wherein a tensioning sliding block (10) is arranged at the bottom end of the synchronous pulley (4) in the middle, and the tensioning sliding block (10) is integrally arranged in an installation groove (11) arranged at the top of the fixed table (1) through screws.

4. A double-screw synchronous belt-added large-span balance lifting mechanism according to claim 3, wherein a plurality of screw fixing holes are formed in the mounting groove (11) at equal intervals.