CN210625813U

CN210625813U - Pressure buffer mechanism for belt weigher

Info

Publication number: CN210625813U
Application number: CN201922184686.5U
Authority: CN
Inventors: 陈启贵; 王家凯
Original assignee: Quanzhou Wanggong Electronic Weighing Co ltd
Current assignee: Quanzhou Wanggong Electronic Weighing Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-05-26
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a pressure buffer gear for belt weigher relates to belt weigher technical field. This belt weigher is with pressure buffer gear, including the base, the welding has the sensor body on the base, the cover is equipped with the buffer board on the sensor body, the cover is equipped with the spacing ring on the sensor body, set up the spacing groove that can supply the spacing ring to remove on the buffer board, the top fixed connection of buffer spring and base is passed through to the bottom of buffer board, and buffer spring encircles the surface of setting in the sensor body. This pressure buffer gear for belt weigher adds detection mechanism and whether disappears inertia and detect when addding buffer structure, before inertia disappears, cushions the operation to eliminate buffer structure's buffering effort (the decurrent inertial effort of direction is all refered in particular to above-mentioned inertia) through magnetic force's mode after inertia disappears, thereby guarantee the measuring precision, made things convenient for user's use when improving work efficiency.

Description

Pressure buffer mechanism for belt weigher

Technical Field

The utility model relates to a belt weigher technical field specifically is a pressure buffer gear for belt weigher.

Background

The belt weigher is an automatic weighing apparatus which continuously weighs bulk materials on a conveying belt without subdividing the mass or interrupting the movement of the conveying belt, and is mainly classified according to a loader: a weigh table carrier, a conveyor carrier; sorting by belt speed: single speed belt weigher, variable speed belt weigher.

In the prior art, when the belt weigher is used, in order to ensure the working efficiency, the belt weigher places an object to be measured on a belt in a mode of throwing the object to be measured or enabling the object to be measured to freely fall, and due to the acting force caused by inertia when the object to be measured falls on the belt, a variable pressure exists, if the object to be measured cannot be buffered, the situation that parts are loosened or damaged easily occurs, but if only a common buffer mechanism is additionally arranged, the measuring result is influenced, and the inconvenience is brought to the use of a user while the working efficiency is reduced.

Disclosure of Invention

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a pressure buffer gear for belt weigher has solved in prior art, belt weigher is when using, in order to guarantee work efficiency, adopt the mode of throwing the determinand or making the determinand free fall body place the determinand on the belt, because there is the effort that inertia brought when the determinand falls to the belt, consequently can have a change pressure, if can not carry out the cushioning operation, then the condition that the part lax or damage appears easily, but if only add usual buffer gear, then will cause the problem of influence to the measuring result.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a pressure buffer gear for belt weigher, includes the base, the welding has the sensor body on the base, the cover is equipped with the buffer board on the sensor body, the cover is equipped with the spacing ring on the sensor body, set up the spacing groove that can supply the spacing ring to remove on the buffer board, the top fixed connection of buffer spring and base is passed through to the bottom of buffer board, and buffer spring encircles the surface of setting in the sensor body, the coil pole has all been inlayed to the both sides of buffer board, it has the coil board that sets up with the coil pole cooperation to inlay on the base, the both sides of base all run through and are provided with detection mechanism.

The detection mechanism comprises a detection shell, a detection rod is arranged at the top of the detection shell in a penetrating mode, a detection plate is fixedly connected to the top end of the detection rod, a displacement block is fixedly connected to the bottom end of the detection rod, guide rods are arranged on two sides of the displacement block in a penetrating mode, the guide rods are in contact with the inner wall of the detection shell, an electric brush is arranged on the left side of the displacement block, a detection resistor arranged in a matched mode with the electric brush is arranged on the left side of the inner cavity of the detection shell, the electric brush is connected in series in a circuit of the detection resistor, a coil block is arranged at the bottom of the displacement block, and a permanent magnet arranged in a matched mode with.

Preferably, the direction of the magnetic field generated by the coil plate after being electrified is the same as the direction of the magnetic field generated by the coil rod after being electrified and the direction of the magnetic field generated by the coil block after being electrified, and the direction of the magnetic field generated by the coil block after being electrified is opposite to the direction of the magnetic field of the permanent magnet.

Preferably, when the base is horizontally placed and in a power-off state, the horizontal height of the top of the buffer plate is higher than that of the top of the limiting ring, and the horizontal height of the top of the detection plate is higher than that of the top of the limiting ring.

Preferably, the right side of the displacement block is movably connected with a displacement wheel through a rotating shaft, and the displacement wheel is in contact with the inner wall of the detection shell.

(III) advantageous effects

The utility model provides a pressure buffer gear for belt weigher. The method has the following beneficial effects: this pressure buffer gear for belt weigher adds detection mechanism and whether disappears inertia and detect when addding buffer structure, before inertia disappears, cushions the operation to eliminate buffer structure's buffering effort (the decurrent inertial effort of direction is all refered in particular to above-mentioned inertia) through magnetic force's mode after inertia disappears, thereby guarantee the measuring precision, made things convenient for user's use when improving work efficiency.

Drawings

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

fig. 2 is a schematic structural diagram of the detection mechanism of the present invention.

In the figure: 1. a base; 2. a sensor body; 3. a buffer plate; 4. a limiting ring; 5. a limiting groove; 6. a buffer spring; 7. a coil rod; 8. a coil plate; 9. a detection mechanism; 901. detecting the shell; 902. an electric brush; 903. detecting a resistance; 904. a permanent magnet; 905. detecting a plate; 906. a detection lever; 907. a displacement block; 908. a displacement wheel; 909. a coil block; 910. a guide rod.

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.

Referring to fig. 1-2, the present invention provides a technical solution: a pressure buffer mechanism for a belt scale comprises a base 1, when the base 1 is horizontally placed and in a power-off state, the horizontal height of the top of a buffer plate 3 is higher than that of the top of a limit ring 4, the horizontal height of the top of a detection plate 905 is higher than that of the top of the limit ring 4, a sensor body 2 is welded on the base 1, the buffer plate 3 is sleeved on the sensor body 2, the limit ring 4 is sleeved on the sensor body 2, a limit groove 5 for the limit ring 4 to move is formed in the buffer plate 3, the bottom of the buffer plate 3 is fixedly connected with the top of the base 1 through a buffer spring 6, the buffer spring 6 is arranged on the surface of the sensor body 2 in a surrounding mode, coil rods 7 are embedded on two sides of the buffer plate 3, a coil plate 8 matched with the coil rods 7 is embedded on the base 1, a magnetic field generated after the coil plate 8 is electrified is the same as the magnetic field generated after the coil rods 7 are electrified and the magnetic field generated after a coil block 909, the direction of the magnetic field after the coil block 909 is energized is opposite to the direction of the magnetic field of the permanent magnet 904, and the detection mechanism 9 is provided on both sides of the base 1.

The detection mechanism 9 comprises a detection housing 901, a detection rod 906 penetrates through the top of the detection housing 901, a detection plate 905 is fixedly connected to the top end of the detection rod 906, a displacement block 907 is fixedly connected to the bottom end of the detection rod 906, a displacement wheel 908 is movably connected to the right side of the displacement block 907 through a rotating shaft, the displacement wheel 908 is in contact with the inner wall of the detection housing 901, guide rods 910 are arranged on two sides of the displacement block 907 in a penetrating mode, the guide rods 910 are in contact with the inner wall of the detection housing 901, an electric brush 902 is arranged on the left side of the displacement block 907, a detection resistor 903 matched with the electric brush 902 is arranged on the left side of the inner cavity of the detection housing 901, the electric brush 902 is connected in series in a circuit of the detection resistor 903, a coil block 909 is arranged at the bottom of the displacement block 907.

When the sensor works, the power supply of the coil block 909 is switched on through the external control mechanism, so that the coil block 909 generates a magnetic field with the direction opposite to that of the magnetic field of the permanent magnet 904, the displacement block 907 is positioned at the upper part of the guide rod 910 under the action of the magnetic field force, when an object to be measured falls onto a belt, the object to be measured presses the buffer plate 3 downwards, meanwhile, the buffer operation is performed under the action of the buffer spring 6, along with the continuous falling, the object to be measured presses the detection plate 905 downwards and enables the electric brush 902 to move relative to the detection resistor 903, so that the effective resistance value of the detection resistor 903 is changed, the external control mechanism monitors the effective resistance value of the current detection resistor 903, when inertia disappears, the resistance value of the detection resistor 903 is stable, at the moment, the external control mechanism is simultaneously switched on the power supply of the coil rod 7 and the coil plate 8, so that the coil rod 7 and the coil plate 8 generate a, meanwhile, the magnetic field generated by the coil rod 7 and the coil plate 8 adsorbs the coil block 909 and enables the displacement block 907 to drive the detection plate 905 to move downwards, so that the top of the sensor body 2 protrudes relative to the buffer plate 3 and the detection plate 905, the acting force detected by the sensor body 2 is not influenced by the buffer structure any more, and the measurement accuracy is guaranteed.

To sum up, this pressure buffer gear for belt weigher adds detection mechanism 9 and detects whether inertia disappears when addding buffer structure, before inertia disappears, carries out the buffering operation to eliminate buffer structure's buffering effort (the decurrent inertial effort of direction is all refered in particular to above-mentioned inertia) through the mode of magnetic force after inertia disappears, thereby guarantee the measuring precision, made things convenient for user's use when improving work efficiency.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 pressure buffer gear for belt weigher, includes base (1), the welding has sensor body (2), its characterized in that on base (1): the sensor comprises a sensor body (2), wherein a buffer plate (3) is sleeved on the sensor body (2), a limiting ring (4) is sleeved on the sensor body (2), a limiting groove (5) for the limiting ring (4) to move is formed in the buffer plate (3), the bottom of the buffer plate (3) is fixedly connected with the top of a base (1) through a buffer spring (6), the buffer spring (6) is arranged on the surface of the sensor body (2) in a surrounding mode, coil rods (7) are embedded in two sides of the buffer plate (3), coil plates (8) matched with the coil rods (7) are embedded in the base (1), and detection mechanisms (9) penetrate through two sides of the base (1);

the detection mechanism (9) comprises a detection shell (901), a detection rod (906) penetrates through the top of the detection shell (901), the top end of the detection rod (906) is fixedly connected with a detection plate (905), the bottom end of the detection rod (906) is fixedly connected with a displacement block (907), guide rods (910) are arranged on two sides of the displacement block (907) in a penetrating manner, the guide rods (910) are in contact with the inner wall of the detection shell (901), the left side of the displacement block (907) is provided with an electric brush (902), the left side of the inner cavity of the detection shell (901) is provided with a detection resistor (903) matched with the electric brush (902), the electric brush (902) is connected in series in a circuit of the detection resistor (903), the bottom of the displacement block (907) is provided with a coil block (909), the bottom of the inner cavity of the detection shell (901) is provided with a permanent magnet (904) which is matched with the coil block (909).

2. The pressure buffering mechanism for a belt scale of claim 1, wherein: the direction of a magnetic field generated after the coil plate (8) is electrified is the same as that of a magnetic field generated after the coil rod (7) is electrified and that of a magnetic field generated after the coil block (909) is electrified, and the direction of the magnetic field generated after the coil block (909) is electrified is opposite to that of the magnetic field of the permanent magnet (904).

3. The pressure buffering mechanism for a belt scale of claim 1, wherein: when the base (1) is horizontally placed and in a power-off state, the horizontal height of the top of the buffer plate (3) is higher than that of the top of the limiting ring (4), and the horizontal height of the top of the detection plate (905) is higher than that of the top of the limiting ring (4).

4. The pressure buffering mechanism for a belt scale of claim 1, wherein: the right side of the displacement block (907) is movably connected with a displacement wheel (908) through a rotating shaft, and the displacement wheel (908) is in contact with the inner wall of the detection shell (901).