Switching valve driving device of liquid discharge tank of filter

Abstract

The utility model discloses a switching valve driving device of a filter drainage tank, which belongs to the technical field of vacuum filter drainage tank equipment and is used for driving a switching valve of the filter drainage tank. According to the technical scheme, a long rod of an L-shaped rod frame is connected with a motor shaft, a short rod of the L-shaped rod frame is opposite to a cross-shaped rod frame, the short rod of the L-shaped rod frame is sleeved with a rolling wheel, a groove surrounding the rolling wheel is formed in the periphery of the rolling wheel, the groove is opposite to a rod body of the cross-shaped rod frame, the rod body of the cross-shaped rod frame is in sliding fit with the groove in the periphery of the rolling wheel, and a bearing is embedded in the rolling wheel. An inner ring of the bearing is connected with the short rod of the L-shaped rod frame in a sleeved mode, and an outer ring of the bearing is embedded in an inner hole of the idler wheel. The switching valve is simple in structure and convenient to use, the rigid sliding contact mode between the L-shaped rod frame and the cross-shaped rod frame is changed into the rotating contact mode of the bearings through the idler wheels and the bearings, abrasion and deformation caused by contact between the two rod frames are reduced, normal action of the switching valve is guaranteed, and the stability of a liquid discharging tank is improved.

Description

Technical Field

[0001] The utility model relates to a device for driving a liquid discharge tank switching valve of a filter press, belonging to the technical field of liquid discharge tank equipment of a vacuum filter press. Background Technique

[0002] A vacuum filter press is a common mineral product filtering machine used in the dehydration process of a concentrator. The liquid discharge tank is a supporting facility of the vacuum filter press, responsible for discharging the liquid extracted during the filtering process. The liquid discharge tank is generally designed with two cavities, and the switching valve on it is responsible for switching between the atmosphere and vacuum between the two cavities to achieve intermittent liquid discharge. The action of the switching valve is driven by a motor to drive an L-shaped rod frame to make a circular motion. When a certain rod of the L-shaped rod frame contacts a rod of the cross-shaped rod frame on the switching valve, the L-shaped rod frame will push the cross-shaped rod frame to make a circular motion around its own axis. A 1 / 4 circle is an action interval of a switching valve. At present, the cross-shaped rod frame on the commonly used liquid discharge tank switching valve is made of round steel, and the driving device, the L-shaped rod frame, is also made of round steel. During operation, due to the rigid sliding contact between the two round steels, wear, deformation and misalignment will occur after a long time, resulting in the L-shaped rod frame being unable to normally push the cross-shaped rod frame, causing an equipment failure where liquid cannot be discharged.

[0003] In order to solve the above problems of deformation and misalignment of the L-shaped rod frame and ensure the stable operation of the equipment, it is necessary to design an effective switching valve driving device. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a switching valve driving device for a liquid discharge tank of a filter press. This driving device can ensure the stable switching of the switching valve of the liquid discharge tank of the filter press, is not easily damaged, and avoids the equipment failure of liquid discharge caused by the failure of the switching valve.

[0005] The technical solution to solve the above technical problem is:

[0006] A switching valve driving device for a liquid discharge tank of a filter press, which includes a motor and an L-shaped rod frame. The long rod of the L-shaped rod frame is connected to the motor shaft, and the short rod of the L-shaped rod frame faces the cross-shaped rod frame. The improvement is that a roller is sleeved on the short rod of the L-shaped rod frame. There is a groove surrounding the roller on the outer periphery of the roller, and the groove faces the rod body of the cross-shaped rod frame. The rod body of the cross-shaped rod frame and the groove on the outer periphery of the roller are in sliding fit.

[0007] For the above switching valve driving device for a liquid discharge tank of a filter press, a bearing is embedded in the roller. The inner ring of the bearing is sleeved and connected to the short rod of the L-shaped rod frame, and the outer ring of the bearing is embedded in the inner hole of the roller.

[0008] The beneficial effect of the utility model is:

[0009] The utility model has a simple structure and is easy to use. The rigid sliding contact form between the L-shaped rod frame and the cross rod frame is changed into a rotating contact form of the bearing through the roller and the bearing, thereby reducing the contact wear and deformation between the two rod frames, ensuring the normal operation of the switching valve and improving the stability of the drainage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a structural diagram of rollers and bearings.

[0012] The markings in the figure are as follows: cross rod frame 1, switching valve shaft 2, L-shaped rod frame 3, motor shaft 4, roller 5, groove 6, bearing 7. DETAILED DESCRIPTION

[0013] The utility model is composed of a motor, an L-shaped rod frame 3, a roller 5 and a bearing 7.

[0014] Figure 1 It is shown that the long rod of the L-shaped rod frame 3 is connected to the motor shaft 4, and the short rod of the L-shaped rod frame 3 is opposite to the cross rod frame 1. When in use, the L-shaped rod frame 3 rotates under the drive of the motor shaft 4, and the short rod of the L-shaped rod frame 3 drives the cross rod frame 1 to rotate.

[0015] Figure 1 , 2 It is shown that a roller 5 is mounted on the short rod of the L-shaped rod frame 3, and a groove 6 surrounding the roller 5 is arranged on the outer circumference of the roller 5, and the groove 6 is opposite to the rod body of the cross rod frame 1. When the short rod of the L-shaped rod frame 3 drives the cross rod frame 1 to rotate, the rod body of the cross rod frame 1 can be embedded in the groove 6 on the outer circumference of the roller 5, and the rod body of the cross rod frame 1 and the groove 6 on the outer circumference of the roller 5 are in sliding fit. The outer circumferential groove 6 of the roller 5 can constrain the rod body of the cross rod frame 1 to prevent dislocation and slippage.

[0016] Figure 1 , 2 It is shown that the roller 5 is embedded with a bearing 7, the inner ring of the bearing 7 is connected to the short rod of the L-shaped rod frame 3, and the outer ring of the bearing 7 is embedded in the inner hole of the roller 5. The bearing 7 can make the roller 5 rotate flexibly without friction with the rod body of the cross rod frame 1 to cause damage.

[0017] An embodiment of the present utility model is as follows:

[0018] The diameter of the L-shaped rod frame 3 is 20 mm, the length of the long rod is 400 mm, and the length of the short rod is 40 mm;

[0019] The outer diameter of the roller 5 is 70 mm, the inner diameter is 52 mm, the width of the groove 6 is 12 mm, and the depth is 5 mm;

[0020] The model number of the bearing 7 is 6304.

Claims

1. A switching valve driving device for a filter drain tank, comprising a motor and an L-shaped rod frame (3), wherein a long rod of the L-shaped rod frame (3) is connected to a motor shaft (4), and a short rod of the L-shaped rod frame (3) is opposite to a cross rod frame (1), characterized in that: A roller (5) is mounted on the short rod of the L-shaped rod frame (3). A groove (6) surrounding the roller (5) is provided on the outer periphery of the roller (5). The groove (6) is opposite to the rod body of the cross rod frame (1). The rod body of the cross rod frame (1) and the groove (6) on the outer periphery of the roller (5) are in sliding fit.

2. The switching valve driving device of the filter drain tank according to claim 1 is characterized in that: The roller (5) is embedded with a bearing (7), the inner ring of the bearing (7) is connected to the short rod of the L-shaped rod frame (3), and the outer ring of the bearing (7) is embedded in the inner hole of the roller (5).

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