CN215048137U

CN215048137U - Heavy hammer type lifting height limiter adopting Hall switch

Info

Publication number: CN215048137U
Application number: CN202121070587.5U
Authority: CN
Inventors: 李锐; 何光义; 王丽; 张莉; 郑达标
Original assignee: XUZHOU HIRSCHMANN ELECTRONICS CO Ltd
Current assignee: XUZHOU HIRSCHMANN ELECTRONICS CO Ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-12-07
Anticipated expiration: 2031-05-19

Abstract

The utility model discloses a heavy hammer type lifting height limiter adopting a Hall switch, which comprises a first shell and a second shell which are fixed together, wherein the opposite surfaces of the first shell and the second shell are respectively provided with an embedded groove which is used for forming an installation cavity and a trigger cavity in a matching way, the trigger cavity is internally connected with a pull rope assembly of which one end extends out of the trigger cavity through a spring, one end of the pull rope assembly, which is positioned in the trigger cavity, is provided with a magnet trigger assembly which extends into the installation cavity, the installation cavity is provided with a Hall switch assembly which is matched with the magnet trigger assembly and is electrically connected with a crane central control system, when in use, the protection of the crane can be realized through the Hall switch, the integral protection grade of the crane can be further improved through the glue filling of the Hall switch assembly, and the crane is ensured to be not only suitable for various severe working environments, but also can effectively prolong the service life of the device, and the working stability and reliability of the device are stronger.

Description

Heavy hammer type lifting height limiter adopting Hall switch

Technical Field

The utility model relates to an adopt hall switch's weight formula hoisting height limiter belongs to hoist technical field.

Background

The inside mechanical switch component that all adopts of present weight formula lifting height limiter for the contact detects, can have great impact to the switch component when the stay cord assembly of lower extreme pops up suddenly, causes the switch life-span lower, because the switch is the action component in addition, can't the encapsulating and handle and improve the protection level, though some switch contact positions are sealed silica gel cover, but generally tens of thousands touch back silica gel cover can be damaged, cause the protection inefficacy. It is therefore desirable to develop a high reliability, long life, high protection lift limiter.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide an adopt hall switch's weight formula lifting height limiter to it causes great impact to the switch element because of the bounce of stay cord assembly easily to solve among the prior art mechanical switch element that weight formula lifting height limiter adopted, and leads to the technical problem that its life is low.

In order to solve the technical problem, the utility model discloses an adopt following technical scheme to realize:

the utility model provides an adopt hall switch's weight formula hoisting height limiter, includes fixed connection's first casing and second casing, the caulking groove that is used for the cooperation to form the installation cavity and trigger the chamber is all seted up to the one side that first casing is relative with the second casing, there is one end through spring coupling in the trigger chamber to extend the stay cord assembly that triggers the chamber the one end that the stay cord assembly is located to trigger the chamber is provided with the magnet that extends to in the installation cavity and triggers the assembly, is located the installation cavity is provided with and triggers assembly phase-match with magnet, and with crane central control system electric connection's hall switch assembly, the stay cord assembly goes up and down along with the crane to make magnet trigger the assembly through being close to or keeping away from the state that triggers that hall switch assembly controlled hall switch assembly.

As an optimal technical scheme of the utility model, hall switch assembly is including setting up the hall circuit board in the installation cavity electric connection has on the hall circuit board connector to and trigger the hall switch chip that assembly phase-match set up with magnet, board connector passes through connecting cable and hoist center control system electric connection.

As the utility model discloses an optimal technical scheme, it has the sealed glue of parcel hall circuit board to fill in the installation cavity, and the accessible improves its holistic protection level to the encapsulating of hall switch assembly, guarantees that it not only can be applicable to various abominable operational environment, can effectually improve its life moreover.

As a preferred technical scheme of the utility model, magnet triggers the assembly and is located the magnet seat that triggers chamber one end including setting up at the stay cord assembly, the magnet seat extends to in the installation cavity, and the one end that extends to in the installation cavity at the magnet seat is provided with hall switch chip assorted magnet piece.

As an optimal technical scheme the mounting groove has been seted up to the one end that the magnet seat extends to in the installation cavity, the magnet piece is installed in the mounting groove.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

the utility model discloses can realize the protection to the hoist through hall switch, further the accessible improves its holistic protection level to the encapsulating of hall switch assembly, guarantees that it not only can be applicable to various abominable operational environment, can effectual its life that improves moreover, and the stability and the reliability of its work are all stronger.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a side cross-sectional view of the present invention;

fig. 3 is a schematic structural view of the magnet triggering assembly of the present invention;

fig. 4 is a schematic structural diagram of the hall switch assembly of the present invention.

In the figure: 1-a first housing; 2-a second housing; 3-installing a cavity; 4-a trigger chamber; 5-caulking groove; 6-a pull rope assembly; 7-a magnet trigger assembly; 8-a hall switch assembly;

701-a magnet holder; 702-a magnet block; 703-mounting grooves;

801-hall circuit board; an 802-onboard connector; 803-hall switch chip.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed 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 by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 4, a counterweight type lifting height limiter using a hall switch includes a first housing 1 and a second housing 2 which are fixedly connected, an caulking groove 5 for matching with a mounting cavity 3 and a trigger cavity 4 is provided on one side of the first housing 1 opposite to the second housing 2, a pull rope assembly 6 having one end extending out of the trigger cavity 4 is connected to the trigger cavity 4 through a spring, a magnet trigger assembly 7 extending into the mounting cavity 3 is provided at one end of the pull rope assembly 6 located in the trigger cavity 4, the magnet trigger assembly 7 is provided in the mounting cavity 3 and is matched with the magnet trigger assembly 7, and the hall switch assembly 8 is electrically connected with a central control system of a crane, the pull rope assembly 6 is lifted along with the crane, so that the magnet trigger assembly 7 controls the trigger state of the hall switch assembly by being close to or far away from the hall switch assembly 8.

First casing 1 and second casing 2 are preferred to be in the same place through the fix with screw, and when being convenient for follow-up its breaks down, can dismantle the maintenance fast with it, and in addition, the user also can be according to own actual demand, makes corresponding adjustment to its fixed mode, and installation cavity 3 and hall switch assembly 8 phase-match set up, and trigger cavity 4 and magnet trigger assembly 6 phase-match set up, guarantee its holistic compactness.

The hall switch assembly 8 comprises a hall circuit board 801 arranged in the installation cavity 3, an on-board connector 802 is electrically connected to the hall circuit board 801, and a hall switch chip 803 matched with the magnet trigger assembly 7 is arranged, and the on-board connector 802 is electrically connected with the crane central control system through a connecting cable.

Hall switch chip 803 is Hall chip, its principle is Hall effect, when a metal or semiconductor thin slice that leads to the electric current is put in the magnetic field perpendicularly, the both ends of thin slice will produce the potential difference, can be in reliable work under all kinds of adverse circumstances, board-mounted connector 802 is preferred to be connected with the cable through the mode of pegging graft here, guarantee the portability of its installation, it is provided with the through-hole that supplies the cable to extend to the external world still to need to pay attention to be in one side of installation cavity 3, be provided with on the cable and match with the through-hole, and the cross-section is the spacing fixture block of I-shaped structure, guarantee the stability of cable when the installation, avoid the cable when receiving the pulling force, its problem of being connected with board-mounted connector 802 of easy disconnection.

The installation cavity 3 is filled with sealant wrapping the Hall circuit board 801, so that the influence of the external environment on the Hall circuit board 801 is mainly isolated, the use in a severe environment is avoided, and the problem that the Hall circuit board is prone to breaking down due to the fact that impurities such as dust and rainwater easily enter the Hall circuit board is solved.

The magnet trigger assembly 7 comprises a magnet seat 701 arranged at one end of the pull rope assembly 6, which is located at the trigger cavity 4, the magnet seat 701 extends into the installation cavity 3, and a magnet block 702 matched with the hall switch chip 803 is arranged at one end of the magnet seat 701 extending into the installation cavity 3.

Stay cord assembly 6 extends the one end that triggers chamber 4 and is provided with the wire rope lantern ring, when the hoist normally works, can hang a heavy object on the wire rope lantern ring, the power of spring can be overcome to the heavy object, make stay cord assembly 6 keep the state of being pulled down, hall switch chip 803 can be kept away from along with stay cord assembly 6's motion to this moment magnet piece 702, hall switching signal is in the interrupt condition, rise when the hoist lifting hook and hold up the heavy object after, stay cord assembly 6 is atress at this moment, then can be bounced under the effect of spring, and then can make magnet piece 702 be close to hall switch chip 803, make hall switching signal closed, the hoist lifting hook stops to continue the motion, the limit for height guard action has been played.

As shown in fig. 3, an installation groove 703 is formed in one end of the magnet base 701 extending into the installation cavity 3, and the magnet block 702 is installed in the installation groove 703, so that the problem that the magnet block falls off to cause failure of the device in a long-time use process is solved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The heavy hammer type lifting height limiter comprises a first shell (1) and a second shell (2) which are fixedly connected, and is characterized in that an embedded groove (5) used for being matched with and forming an installation cavity (3) and a trigger cavity (4) is formed in one side, opposite to the first shell (1) and the second shell (2), of the first shell (1), a pull rope assembly (6) of which one end extends out of the trigger cavity (4) is connected to the trigger cavity (4) through a spring, a magnet trigger assembly (7) extending into the installation cavity (3) is arranged at one end, located in the trigger cavity (4), of the pull rope assembly (6), and is provided with a Hall switch assembly (8) matched with the magnet trigger assembly (7) and electrically connected with a crane central control system, the pull rope assembly (6) goes up and down along with the crane, so that the magnet trigger assembly (7) controls the Hall switch assembly (8) to be close to or far away from the Hall switch assembly (8) And the trigger state is set.

2. The heavy hammer type lifting height limiter adopting the Hall switch is characterized in that the Hall switch assembly (8) comprises a Hall circuit board (801) arranged in the installation cavity (3), an on-board connector (802) is electrically connected to the Hall circuit board (801), and a Hall switch chip (803) matched with the magnet trigger assembly (7) is arranged, and the on-board connector (802) is electrically connected with a crane central control system through a connecting cable.

3. The counter weight type lifting height limiter using the hall switch according to claim 2, wherein the installation cavity (3) is filled with a sealant wrapping the hall circuit board (801).

4. A counterweight type lifting height limiter using a hall switch according to claim 2, wherein the magnet trigger assembly (7) comprises a magnet seat (701) arranged at one end of the pull rope assembly (6) positioned in the trigger cavity (4), the magnet seat (701) extends into the mounting cavity (3), and a magnet block (702) matched with the hall switch chip (803) is arranged at one end of the magnet seat (701) extending into the mounting cavity (3).

5. The weight type lifting height limiter using the Hall switch according to claim 4, wherein an installation groove (703) is formed at one end of the magnet base (701) extending into the installation cavity (3), and the magnet block (702) is installed in the installation groove (703).