CN211846815U

CN211846815U - Counterweight automatic pressing mechanism

Info

Publication number: CN211846815U
Application number: CN202020307711.4U
Authority: CN
Inventors: 罗纲
Original assignee: Chengdu Textile College
Current assignee: Chengdu Textile College
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-11-03
Anticipated expiration: 2030-03-12

Abstract

The utility model provides an automatic pressing mechanism for counterweight, which relates to the technical field of elevator components and comprises a mounting bar, a vibration detection mechanism, a pair of abutting screw rods and a pair of screw rod rotating mechanisms; the pair of abutting screw rods are respectively arranged at two ends of the mounting bar and used for abutting against a counterweight pressing plate, the abutting screw rods are vertically arranged and in threaded connection with the mounting bar, the pair of screw rod rotating mechanisms and the pair of abutting screw rods are arranged in a one-to-one correspondence manner, the screw rod rotating mechanisms are in transmission connection with the abutting screw rods and used for adjusting the abutting screw rods, the vibration detection mechanism is arranged on the mounting bar and used for detecting vibration of the counterweight pressing plate, and the vibration detection mechanism is electrically connected with the pair of screw rod rotating mechanisms and used for driving the screw rod rotating mechanisms according to vibration; the vibration condition of the counterweight pressing plate can be automatically detected, the counterweight pressing plate can be automatically abutted tightly according to the vibration condition, the maintenance period of the elevator is effectively prolonged, maintenance personnel are prevented from frequently entering and exiting a cell, and the investment of human resources is reduced.

Description

Counterweight automatic pressing mechanism

Technical Field

The utility model relates to an elevator component technical field particularly, relates to a to heavy automatic hold-down mechanism that uses.

Background

The elevator is at the operation in-process, and the car is balanced with the counter weight formation, and the hauler drives the car from top to bottom by the frictional force between traction sheave and the wire rope, because the car is often up-and-down motion, to also often up-and-down motion to the counter weight, this just causes to make a round trip to the pouring weight and strikes to the counter weight clamp plate, and the very easy pine of counter weight clamp plate takes off, causes the elevator operation in-process to produce huge vibration.

After the elevator is used for a period of time, the counterweight plate needs to be locked, so a large amount of human resources need to be invested for maintenance of the elevator, and in some special cases, maintenance personnel are inconvenient to frequently enter a cell for maintenance, for example, under the epidemic situation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a to heavily using automatic hold-down mechanism, its vibration condition to the heavy clamp plate that can automated inspection to according to the vibration condition, realize supporting tightly to the automation of heavy clamp plate.

The embodiment of the utility model discloses a realize through following technical scheme:

an automatic pressing mechanism for counterweight comprises a mounting bar, a vibration detection mechanism, a pair of abutting screw rods and a pair of screw rod rotating mechanisms; the pair of butt screw rods are respectively arranged at two ends of the mounting bar and used for abutting against a heavy pressing plate, the butt screw rods are vertically arranged and connected to the mounting bar in a threaded manner, the pair of screw rod rotating mechanisms and the pair of abutting screw rods are arranged in a one-to-one correspondence manner, the screw rod rotating mechanisms are in transmission connection with the abutting screw rods and used for adjusting the abutting screw rods, the vibration detection mechanism is mounted on the mounting bar and used for detecting vibration of the heavy pressing plate, and the vibration detection mechanism is electrically connected with the pair of screw rod rotating mechanisms and used for driving the screw rod rotating mechanisms according to vibration conditions.

Further, screw rod slewing mechanism includes gear nut, rotation screw rod and actuating mechanism, gear nut can wind self center pin pivoted install in the mounting bar, and gear nut's center pin with the center pin coincidence of supporting tight screw rod, it wears to locate gear nut's threaded hole to rotate the screw rod, and rotates the screw rod lower extreme and support tight screw rod upper end transmission and be connected and be used for the drive to support tight screw rod and rotate, actuating mechanism installs in the mounting bar, and actuating mechanism's output is equipped with the gear with gear nut intermeshing and is used for drive gear nut to rotate.

Furthermore, an abutting spring is arranged between the rotating screw rod and the abutting screw rod.

Furthermore, the screw rod structure further comprises a pair of friction plates which are respectively arranged at the lower end of the rotating screw rod and the upper end of the abutting screw rod.

Further, the gear nut is a bevel gear.

Further, the thread of the rotating screw is a transmission thread.

Furthermore, the threads of the abutting screw are locking threads.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

the utility model relates to a rationally, simple structure, can automated inspection to the vibration condition of heavy clamp plate to according to the vibration condition, realize supporting tightly to the automation of heavy clamp plate, the effectual dimension guarantee cycle that prolongs the elevator has avoided the dimension to protect personnel and has frequently advanced out the district, reduces manpower resources's input.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an elevator counterweight provided in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at a;

FIG. 3 is an enlarged view of a portion of FIG. 2 at b;

FIG. 4 is a schematic enlarged view of a portion of bit map 3 at c;

icon: 1-counterweight frame, 2-counterweight block, 3-counterweight pressing plate, 4-automatic pressing mechanism, 41-mounting bar, 411-mounting block, 412-mounting bar body, 42-vibration detection mechanism, 43-tightening screw rod, 44-screw rod rotating mechanism, 441-gear nut, 442-rotating screw rod, 443-driving mechanism, 45-abutting spring and 46-friction plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art.

Example 1

Referring to fig. 1, the embodiment provides an elevator counterweight, which includes a counterweight frame 1, a plurality of counterweight blocks 2, a counterweight pressing plate 3, and an automatic pressing mechanism 4; the card that a plurality of 2 successive layers of counterweight blocks pile up is located in counterweight frame 1, and to counterweight plate 3 card locate in counterweight frame 1 and arrange in counterweight block 2 on be used for compressing tightly counterweight block 2, automatic hold-down mechanism 4 install in counterweight frame 1 and lie in to 3 tops of counterweight plate and be used for detecting the vibration to counterweight plate 3 and support tightly counterweight plate 3 automatically.

As shown in fig. 2, the automatic pressing mechanism 4 includes a mounting bar 41, a vibration detection mechanism 42, a pair of tightening screws 43, and a pair of screw rotation mechanisms 44; the both ends of mounting bar 41 are connected respectively in 1 both sides to the heavy frame, the mounting bar 41 both ends are located respectively to a pair of butt screw rod and are used for supporting tightly to the heavy clamp plate 3, the vertical setting of butt screw rod and threaded connection in mounting bar 41, a pair of screw rod slewing mechanism 44 and a pair of tight screw rod 43 one-to-one setting of supporting, screw rod slewing mechanism 44 is connected with the transmission of supporting tight screw rod 43 and is used for adjusting and supports tight screw rod 43, vibration detection mechanism 42 installs in mounting bar 41 and is used for detecting the vibration to heavy clamp plate 3, vibration detection mechanism 42 is connected with a pair of screw rod slewing mechanism 44 electricity and is used for driving screw rod slewing.

Specifically, the mounting bar 41 includes two mounting blocks 411 and a mounting bar body 412, two mounting blocks 411 are detachably mounted on two sides of the counterweight frame 1, two ends of the mounting bar body 412 are respectively connected to the two mounting blocks 411, the vibration detection mechanism 42 is mounted on the mounting bar body 412, optionally, the vibration detection mechanism 42 is mounted in the middle of the mounting bar body 412, a pair of abutting screws 43 is respectively connected to the two mounting blocks 411, and the screw rotation mechanism 44 is mountable on the mounting block 411 or the mounting bar body 412.

Optionally, as shown in fig. 3, the screw rotating mechanism 44 includes a gear nut 441, a rotating screw 442 and a driving mechanism 443, the gear nut 441 is rotatably mounted on the mounting bar 41 around its central axis, specifically, the gear nut 441 is mounted on the mounting block 411 through a bearing, the central axis of the gear nut 441 coincides with the central axis of the tightening screw 43, the rotating screw 442 is inserted into the threaded hole of the gear nut 441, the lower end of the rotating screw 442 is in transmission connection with the upper end of the tightening screw 43 to drive the tightening screw 43 to rotate, the driving mechanism 443 is mounted on the mounting bar 41, and the output end of the driving mechanism 443 is provided with a gear meshed with the gear nut 441 to drive the gear nut 441 to rotate.

In this embodiment, as shown in fig. 4, the abutting spring 45 is provided between the rotary screw 442 and the tightening screw 43, and by adopting the above design, it is ensured that the rotary screw 442 does not rotate along with the gear nut 441 when the gear nut 441 rotates, so that the rotary screw 442 stretches, and meanwhile, when the elevator counterweight collides, a certain buffer effect is provided between the tightening screw 43 and the rotary screw 442, so as to reduce the influence of the collision on the screw rotating mechanism 44.

In this embodiment, the device further includes a pair of friction plates 46, the friction plates 46 are respectively disposed at the lower end of the rotating screw 442 and the upper end of the tightening screw 43, and when the rotating screw 442 extends downward to a certain extent, the friction plates 46 contact each other, so as to drive the tightening screw 43 to rotate, and further enable the tightening screw 43 to tighten against the counter-pressure plate 3.

Alternatively, the gear nut 441 is a bevel gear, in which case the driving force is diverted, so as to effectively reduce the effect of vibration on the driving mechanism 443, and in some embodiments, the gear nut 441 may also be a common gear.

In the present embodiment, the thread of the rotating screw 442 is a driving thread, and specifically, the driving thread may be a trapezoidal thread and a saw-tooth thread.

In this embodiment, the thread of the tightening screw 43 is a locking thread, specifically, the locking thread may be a fine pressing thread with an angle of 460 degrees.

Use the utility model discloses the time, when vibration detection mechanism 42 detected to produce to the counter-pressing plate 3 and surpassed the allowable vibration value, start actuating mechanism 443 drive gear and rotate, drive gear nut 441 rotates, promote to rotate screw 442 and push down, make two friction discs 46 contact each other, and then the drive supports tight screw 43 and rotates and pushes down, support tight screw 43 and compress tightly to counter-pressing plate 3, compress tightly the back, vibration detection mechanism 42 continues to detect, after vibration data meets the requirements, actuating mechanism 443 reverses, makes two friction discs 46 break away from.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a to heavily using automatic hold-down mechanism which characterized in that: comprises a mounting bar (41), a vibration detection mechanism (42), a pair of abutting screw rods (43) and a pair of screw rod rotating mechanisms (44); the pair of abutting screws are respectively arranged at two ends of the mounting bar (41) and used for abutting against a counterweight pressing plate (3), the abutting screws are vertically arranged and are in threaded connection with the mounting bar (41), the pair of screw rotating mechanisms (44) and the pair of abutting screws (43) are arranged in a one-to-one correspondence mode, the screw rotating mechanisms (44) are in transmission connection with the abutting screws (43) and used for adjusting the abutting screws (43), the vibration detection mechanisms (42) are installed on the mounting bar (41) and used for detecting vibration of the counterweight pressing plate (3), and the vibration detection mechanisms (42) are electrically connected with the pair of screw rotating mechanisms (44) and used for driving the screw rotating mechanisms (44) according to vibration conditions.

2. The automatic pressing mechanism for a counterweight according to claim 1, characterized in that: the screw rotating mechanism (44) comprises a gear nut (441), a rotating screw (442) and a driving mechanism (443), the gear nut (441) can be rotatably mounted on the mounting bar (41) around the central axis of the gear nut (441), the central axis of the gear nut (441) coincides with the central axis of the abutting screw (43), the rotating screw (442) is arranged in a threaded hole of the gear nut (441) in a penetrating manner, the lower end of the rotating screw (442) is in transmission connection with the upper end of the abutting screw (43) to drive the abutting screw (43) to rotate, the driving mechanism (443) is mounted on the mounting bar (41), and the output end of the driving mechanism (443) is provided with a gear which is mutually meshed with the gear nut (441) and used for driving the gear nut (441) to rotate.

3. The automatic pressing mechanism for a counterweight according to claim 2, characterized in that: an abutting spring (45) is arranged between the rotating screw rod (442) and the abutting screw rod (43).

4. The automatic pressing mechanism for a counterweight according to claim 2, characterized in that: the screw rod clamping device further comprises a pair of friction plates (46), and the pair of friction plates (46) are respectively arranged at the lower end of the rotating screw rod (442) and the upper end of the abutting screw rod (43).

5. The automatic pressing mechanism for a counterweight according to claim 2, characterized in that: the gear nut (441) is a bevel gear.

6. The automatic pressing mechanism for a counterweight according to claim 2, characterized in that: the thread of the rotating screw rod (442) is a transmission thread.

7. The automatic pressing mechanism for a counterweight according to claim 2, characterized in that: the threads of the abutting screw rods (43) are locking threads.