Suspension connection weighing mechanism and filter press

Abstract

The utility model discloses a suspension connection weighing mechanism and a filter press, the suspension connection weighing mechanism comprises a mounting base, fixed vertical plates, weighing sensors, an upper contact mounting plate, limit fixing pins and balls, the fixed vertical plates are mounted on two sides of the mounting base, the weighing sensors are mounted on the mounting base, and the limit fixing pins are mounted on the upper contact mounting plate. The upper contact mounting plate is mounted on the weighing sensor, the limiting fixing pins are fixed on the two sides of the upper contact mounting plate, a kidney-shaped hole is formed in each fixed vertical plate, the limiting fixing pins are located in the kidney-shaped holes, and the balls are mounted in the upper contact mounting plate. According to the utility model, the use principle and the movement law of the filter press are combined, the whole filter press is suspended and mounted on the weighing sensor, and the transverse movement of the filter press during working cannot apply a transverse force to the weighing sensor, so that the weighing sensor is protected, and the accuracy of weighing data is ensured; and the mechanism is integrally compact and is suitable for use requirements of filter pressing of various types.

Description

Technical Field

[0001] The utility model relates to the technical field of filter presses, in particular to a suspended connection weighing mechanism and a filter press. Background Art

[0002] Filter press is a commonly used solid-liquid separation equipment in the field of chemical production. During processing, it is generally necessary to weigh the filter residue to calculate the dehydration rate.

[0003] The filter press is mainly composed of crossbeam, filter plate, thrust plate, oil cylinder and other components. The oil cylinder pushes the filter plate to move to one side of the thrust plate, thereby squeezing out the water in the filter residue seen by the filter plate. Support legs are provided at the bottom of the thrust plate and the oil cylinder. The weighing mechanism of the filter press currently used in the market directly installs the traditional weighing sensor on the bracket, so that it is directly fixed to the filter press equipment for use.

[0004] However, the commonly used weighing sensors on the market are generally used to weigh the weight of stationary objects, while our filter press equipment performs back-pressure movement. When the oil cylinder presses the filter plate, it is subjected to reverse pressure, causing the crossbeam to be stretched and deformed. The legs on the thrust plate side are fixed ends, while the legs on the cylinder seat side are slightly displaced as the crossbeam deforms. This will cause the weighing sensor to be subjected to lateral force from the legs, which will directly lead to inaccurate weighing data, and the displacement will cause damage to the sensor, greatly reducing the service life of the weighing sensor. Summary of the invention

[0005] In order to solve the problems of inaccurate data and easy damage of the existing filter press weighing device, a suspended connection weighing mechanism and a filter press are proposed.

[0006] A suspended connection weighing mechanism comprises a mounting base, a fixed vertical plate, a weighing sensor, an upper contact mounting plate, a limit fixing pin and a ball bearing, wherein the fixed vertical plate is mounted on both sides of the mounting base, the weighing sensor is mounted on the mounting base and is located between the two fixed vertical plates, the upper contact mounting plate is mounted on the weighing sensor, the limit fixing pin is fixed on both sides of the upper contact mounting plate, a waist-shaped hole is provided on the fixed vertical plate, the limit fixing pin is located in the waist-shaped hole, and the ball bearing is mounted in the upper contact mounting plate.

[0007] Preferably, a mounting groove is provided on the upper contact mounting plate, the ball is located in the mounting groove, and the diameter of the ball is greater than the depth of the mounting groove.

[0008] Preferably, a group of bolt holes are provided on the upper contact mounting plate.

[0009] A filter press comprises a filter press body and the above-mentioned suspension connection weighing mechanism, wherein the legs of the filter press body are mounted on the suspension connection weighing mechanism.

[0010] The advantages of the utility model are as follows: the filter press is installed as a whole in a suspended manner on the weighing sensor in combination with the use principle and movement law of the filter press. The lateral movement of the filter press during operation cannot exert lateral force on the weighing sensor, thereby protecting the weighing sensor and ensuring the accuracy of the weighing data; the overall structure is compact and suitable for the use requirements of various types of filter presses. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the installation diagram of the existing press and load cell;

[0012] Figure 2 This is a schematic diagram of the structure of the suspended connection weighing mechanism. Figure 1 ;

[0013] Figure 3 This is a schematic diagram of the structure of the suspended connection weighing mechanism. Figure 2 ;

[0014] Figure 4 It is a schematic diagram of the installation of the filter press and the suspended connection weighing mechanism.

[0015] In the figure: 1. Mounting base; 2. Fixed vertical plate; 21. Waist-shaped hole; 3. Weighing sensor; 4. Upper contact mounting plate; 41. Mounting groove; 42. Bolt hole; 5. Limit fixing pin; 6. Ball. DETAILED DESCRIPTION

[0016] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0017] like Figure 1 The above-mentioned is an existing filter press and weighing mechanism. The weighing device is fixedly connected to the legs on the thrust plate side and the cylinder side. When the cylinder is pressing the filter plate, the reverse pressure will cause the crossbeam to be stretched and deformed. The legs on the thrust plate side are set as fixed ends, and the legs on the cylinder seat side are slightly displaced as the crossbeam is deformed. In this way, the weighing sensor will be subjected to the lateral force of the legs, resulting in inaccurate weighing or even damage to the sensor.

[0018] like Figure 2 , Figure 3As shown, the suspended connection weighing mechanism of this scheme includes a mounting base 1, a fixed vertical plate 2, a weighing sensor 3, an upper contact mounting plate 4, a limit fixing pin 5 and a ball 6. The fixed vertical plate 2 is mounted on both sides of the mounting base 1, the weighing sensor 3 is mounted on the mounting base 1 and is located between the two fixed vertical plates 2, and the upper contact mounting plate 4 is mounted on the weighing sensor 3. The weighing sensor 3 is an existing product, and its model is the Weptek Measurement and Control WMS0745 compression weighing module; the limit fixing pin 5 is fixed on both sides of the upper contact mounting plate 4, and a waist-shaped hole 21 is provided on the fixed vertical plate 2. Both ends of the limit fixing pin 5 are located in the waist-shaped hole 21. The waist-shaped hole 21 is made by precision machining, and the gap with the limit fixing pin 5 is controlled within 1 mm. The function of the fixed vertical plate 2 is to limit the lateral displacement of the limit fixing pin 5 and the upper contact mounting plate 4; the ball 6 is installed in the upper contact mounting plate 4.

[0019] A mounting groove 41 is provided on the upper contact mounting plate 4 , and the ball 6 is placed in the mounting groove 41 , and the diameter of the ball 6 is greater than the depth of the mounting groove 41 .

[0020] A group of bolt holes 42 are also provided on the upper contact mounting plate 4, which can be fixedly connected to the filter press legs.

[0021] like Figure 4 The figure shows the installation diagram of the filter press and the suspended weighing mechanism. The legs of the filter press body are installed on the suspended weighing mechanism, and the suspended weighing mechanism is fixedly installed on the ground. Specifically, the legs on the thrust plate side are fixed to the bolt holes 42 on the upper contact mounting plate 4 by bolt connection (the ball 6 on the weighing mechanism is taken out), and the movement of the weighing sensor is limited by fixing the vertical plate 2 and the limit fixing pin 5, while the legs on the cylinder side are placed on the ball 6 of the suspended weighing mechanism, and the legs can slide on the ball.

[0022] When the filter press equipment performs filtering movement, the thrust plate side is the fixed end, and the cylinder seat side will perform slight lateral movement backwards as the production process progresses. Since the cylinder seat side legs are in contact with the suspended connection weighing mechanism through the ball 6, when the cylinder seat moves backwards, the ball 6 will roll relatively, thereby reducing the backward movement force exerted on the weighing sensor. Even if the ball 6 does not work, the limit fixing pin 5 will be fixed on the contact mounting plate 4 under the restriction of the waist-shaped hole 21 of the fixed vertical plate 2, so that the internal components of the weighing sensor 3 will not be damaged. This not only ensures the accuracy of the measured weight data, but also improves the service life of the weighing sensor.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A suspended connection weighing mechanism, characterized in that: The invention comprises a mounting base (1), a fixed vertical plate (2), a weighing sensor (3), an upper contact mounting plate (4), a limit fixing pin (5) and a ball (6), wherein the fixed vertical plate (2) is mounted on both sides of the mounting base (1), the weighing sensor (3) is mounted on the mounting base (1) and is located between the two fixed vertical plates (2), the upper contact mounting plate (4) is mounted on the weighing sensor (3), the limit fixing pin (5) is fixed on both sides of the upper contact mounting plate (4), a waist-shaped hole (21) is provided on the fixed vertical plate (2), the limit fixing pin (5) is located in the waist-shaped hole (21), and the ball (6) is mounted in the upper contact mounting plate (4).

2. A suspension connection weighing mechanism as claimed in claim 1, characterized in that: The upper contact mounting plate (4) is provided with a mounting groove (41), the ball (6) is located in the mounting groove (41), and the diameter of the ball (6) is greater than the depth of the mounting groove (41).

3. A suspension connection weighing mechanism as claimed in claim 1, characterized in that: A group of bolt holes (42) are provided on the upper contact mounting plate (4).

4. A filter press, comprising a filter press body and the suspended connection weighing mechanism according to claim 1, characterized in that: The legs of the filter press body are installed on a suspended connection weighing mechanism.

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