A pull plate trolley with a pull plate claw structure locked by a swing top rod

Abstract

The utility model discloses a kind of pull plate trolley of pull plate claw structure is locked by swing ejector rod, including swing ejector rod, ejector rod slide, pull handle support, pull plate claw, stop claw, left baffle, right baffle, slide and chain groove;Swing ejector rod is L-shaped ejector rod, middle and end are installed gyro wheel respectively, another end of the swing ejector rod is installed in pull handle support inside by connecting shaft;The middle gyro wheel of swing ejector rod is in contact with the upper surface of ejector rod slide, the upper surface of ejector rod slide is equipped with a continuous tangent plane groove, one side of groove is equipped with two limit boss.The beneficial effects of the utility model are: through the L-shaped swing ejector rod of gyro wheel and the ejector rod slide with continuous tangent plane groove on upper surface, eliminate the factor of clearance fit between sliding insertion rod, completely eliminate the locking failure fault of pull plate claw, greatly improve the reliability of pull plate trolley.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, specifically a plate pulling trolley with a plate pulling claw structure locked by a swing top rod. Background Technology

[0002] As a general-purpose solid-liquid separation device, the filter press is increasingly widely used in various industries. With the continuous development of society and the continuous progress of technology, the requirements for the automation level and stability of the equipment are becoming increasingly higher. Among them, whether the plate pulling device of the filter press can achieve automatic and reliable plate pulling action is an important factor affecting the realization of true automated operation of the equipment; and the structural reliability of the plate pulling trolley plays a key role.

[0003] Currently available plate-pulling trolleys are prone to malfunction under complex working conditions. For example, a commonly used plate-pulling trolley, patent number CN219662967U, has the following structure: a sliding rod is installed behind the plate-pulling claws on the trolley, and a pressure block and stop are installed at the end of the filter press. A torsion spring is installed inside the plate-pulling claws, which always applies a counterclockwise torque to keep the plate-pulling claws in a vertical position.

[0004] After unloading is completed, the pull plate trolley continues to move backward. When the pull plate claws touch the pressure block, the pull plate claws are flattened. At the same time, the stop block touches the sliding rod, and the sliding rod is pushed into the pull plate claws, blocking and locking the pull plate claws to prevent them from resetting under the action of the torsion spring. When the pull plate trolley returns to the initial position of the filter press, the baffle set at the initial position touches the sliding rod, pushing it out of the pull plate claws in the opposite direction. The pull plate claws reset under the action of the torsion spring, changing from the horizontal direction back to the vertical direction.

[0005] The above-mentioned disadvantages are that after the pull plate claw is flattened and the sliding rod is inserted into it, the pull plate claw must remain horizontal under the positioning of the sliding rod, and the error cannot be too large. Otherwise, the pull plate claw cannot guarantee that its height is lower than the filter plate handle, and the trolley cannot return to its initial position. Therefore, the gap between the sliding rod and the pull plate claw at the insertion point is very small. The pull plate trolley moves back and forth on the filter press for a long time, and collides with the end pressure block and the stop block during each unloading process. This can easily lead to the sliding rod not being able to accurately insert into the pull plate claw. If a malfunction occurs, the pull plate trolley cannot return to its initial position, and the pull plate process cannot be performed for the next discharge.

[0006] The technical solution of this application completely avoids the above-mentioned problems through structural improvements, and greatly improves reliability. Utility Model Content

[0007] To overcome the above-mentioned defects, this utility model provides a pull plate trolley with a locking pull plate claw structure by means of a swinging top rod. By using an L-shaped swinging top rod with rollers and a top rod slide with a continuous tangential groove on the upper surface, the factor of clearance fit of the sliding insert rod is eliminated, and the locking failure of the pull plate claw is completely eliminated.

[0008] The technical solution of this utility model is implemented as follows: a pull plate trolley with a locking pull plate claw structure by a swing push rod, including a swing push rod, a push rod slide, a pull wrench bracket, a pull plate claw, a stop claw, a left baffle, a right baffle, a slide seat and a chain groove;

[0009] The swing rod is an L-shaped rod with rollers installed in the middle and at both ends. The other end of the swing rod is installed inside the wrench bracket via a connecting shaft.

[0010] The lever bracket is fixed on the slide block. The push rod slide is placed in the groove of the lever bracket and both ends can extend out from the groove. The middle roller of the swing push rod contacts the upper surface of the push rod slide. The upper surface of the push rod slide is provided with a groove with a continuous tangential surface. As the push rod slide moves, the end roller of the swing push rod can extend or retract from the opening on the lever bracket, thereby driving the lever claw to rotate around the lever claw mounting axis, so that the lever claw remains in a horizontal or vertical state.

[0011] The pull-plate claw and the stop claw are mounted on the pull-plate bracket; the slide is mounted on the chain groove and can move on the chain groove.

[0012] The left and right baffles are installed on the chain groove, located on both sides of the pull plate trolley, and at the end of the pull plate trolley's stroke, both directly opposite the two ends of the top rod slide.

[0013] Furthermore, two limiting bosses are provided on one side of the groove.

[0014] Furthermore, a torsion spring is installed inside the pull plate claw, which is connected in series with the mounting shaft and mounted on the pull wrench bracket through the ear plate. One end of the torsion spring presses on the inner side of the pull plate claw, and the other end presses on the upper surface of the pull wrench bracket. Under the action of the torsion force of the torsion spring, the pull plate claw naturally presents a vertical direction.

[0015] Furthermore, a torsion spring is also installed inside the stop pawl, which is connected in series with the mounting shaft and mounted on the lever bracket via the ear plate; one end of the torsion spring presses on the inner side of the stop pawl, and the other end presses on the upper surface of the lever bracket. The upper surface of the stop pawl is arc-shaped, and the stop pawl naturally presents a vertical direction under the torsion of the torsion spring.

[0016] Furthermore, a U-shaped shaft seat is fixed on the lower surface of the wrench bracket, and the other end of the swing rod is mounted on the U-shaped shaft seat via a connecting shaft.

[0017] Its working principle is as follows: when the trolley pulls the plate, the plate-pulling claw needs to be raised; when the trolley returns after pulling the plate, the plate-pulling claw needs to be lowered.

[0018] When the trolley moves to the left and hits the left baffle, the push rod slides to the right. The middle roller of the swing push rod rolls from the lower surface of the groove to the upper surface, which moves the swing push rod upward and keeps it in place. The end roller of the swing push rod lifts the end of the pull plate claw, and at the same time, it is subjected to the reverse force of the torsion spring inside the pull plate claw, which keeps the pull plate claw in a stable horizontal position. When the trolley moves to the right and hits the right baffle, the push rod slides to the left. Under the torsion of the pull plate claw torsion spring, the middle roller of the swing push rod rolls along the surface of the slide from the upper surface of the groove to the lower surface. Its end roller leaves the end of the pull plate claw. Under the torsion of the pull plate claw torsion spring, the pull plate claw becomes vertical and is held in place.

[0019] Compared with the prior art, the beneficial effects of this utility model are: by using the L-shaped swing push rod with rollers and the push rod slide with continuous tangential grooves on the upper surface, the factors of sliding rod clearance fit are eliminated, the locking failure fault of the pull plate claw is completely eliminated, and the reliability of the pull plate trolley is greatly improved. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a diagram of the overall structure of the pull-plate trolley (its state when it reaches the right baffle position).

[0022] Figure 2 This is a side view of the pull-out trolley.

[0023] Figure 3 This is a diagram of the overall structure of the pull-plate trolley (its state when it reaches the left baffle position).

[0024] Figure 4 This is a structural diagram of an L-shaped swing rod.

[0025] Figure 5 This is a diagram of the push rod slide structure.

[0026] Figure 6 This is a structural diagram of the lever arm support.

[0027] Figure 7 This is a structural diagram of the lever arm support.

[0028] In the diagram: 1. Left baffle; 2. Top rod slide; 3. Swinging top rod; 4. Torsion spring; 5. Mounting shaft; 6. Pull plate claw; 7. Stop claw; 8. Slide seat; 9. Pull plate handle bracket; 10. Right baffle; 11. Chain groove; 12. Filter plate handle; 201. Groove; 202. Boss; 301. Roller; 302. Connecting shaft; 901. Slot; 902. Shaft seat; 903. Opening; 904. Ear plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] See Figure 1-7 As shown, a pull plate trolley with a locking pull plate claw structure via a swing push rod includes a swing push rod 3, a push rod slide 2, a pull wrench bracket 9, a pull plate claw 6, a stop claw 7, a left baffle 1, a right baffle 10, a slide block 8, and a chain groove 11.

[0031] The swing rod 2 is an L-shaped rod with rollers 301 installed in the middle and at the end. A U-shaped bearing 902 is fixed on the lower surface of the lever bracket. The other end of the swing rod is installed on the U-shaped bearing 902 through the connecting shaft 302.

[0032] The lever bracket 9 is fixed on the slide block 8. The push rod slide 2 is placed in the slide groove of the lever bracket and can extend from the groove opening 901 at both ends. The middle roller 301 of the swing push rod contacts the upper surface of the push rod slide 2. The upper surface of the push rod slide 2 is provided with a groove 201 with a continuous tangential surface. As the push rod slide moves, the end roller of the swing push rod can extend or retract from the opening on the lever bracket, thereby driving the lever grab to rotate around the lever grab mounting shaft 5. Two limiting bosses 202 are provided on one side of the groove 201.

[0033] Pull-out claw 6 and stop claw 7 are mounted on the pull-out lever bracket 9; a torsion spring 4 is installed inside the pull-out claw, connected in series with the mounting shaft 5 and mounted on the pull-out lever bracket via an ear plate 904. One end of the torsion spring presses against the inner side of the pull-out claw, and the other end presses against the upper surface of the pull-out lever bracket. Under the torsion force of the torsion spring, the pull-out claw naturally presents a vertical direction. Figure 1 Pull-out claw. When the end roller of the swing lever extends from the opening on the pull-out claw bracket, it pushes the lower surface of the pull-out claw, causing the pull-out claw to reach a horizontal position. See... Figure 3 Pull-out claws.

[0034] A torsion spring is also installed inside the stop pawl, which is connected in series with the mounting shaft and mounted on the lever bracket via the ear plate; one end of the torsion spring presses on the inner side of the stop pawl, and the other end presses on the upper surface of the lever bracket. The upper surface of the stop pawl is arc-shaped, and the stop pawl naturally presents a vertical direction under the torsion of the torsion spring.

[0035] The slide block 8 is installed on the chain groove 11 and can move on the chain groove. The left baffle 1 and the right baffle 10 are installed on the chain groove, located on both sides of the pull plate trolley respectively, and at the end of the pull plate trolley's stroke, both facing the two ends of the top rod slide 2.

[0036] The filter plates of the filter press are pressed together for filtration. After filtration, the filter plates need to be opened to unload the material. At this time, the plate-pulling trolley starts to work, pulling the filter plates apart by pulling the filter plate handles 12 fixed on the filter plates.

[0037] The initial position of the trolley is shown below. Figure 1 As shown, at this time, the trolley is at the right end of the filter press, and the right baffle pushes out the top rod slide.

[0038] 1) Under the pull of the plate pulling mechanism, the plate pulling trolley moves from right to left on the chain groove. After the plate pulling claw touches the filter plate handle 12, it is pressed down. After the plate pulling claw passes the filter plate handle, it runs between the two filter plate handles and is bounced up by the torsion spring inside the plate pulling claw. At the same time, the stop claw touches the filter plate handle and is pushed up, and the plate pulling trolley stops.

[0039] 2) The pull plate trolley moves to the right, and the pull plate claw pushes against the filter plate handle. The filter plate is pulled to the right to unload the material through the filter plate handle. After unloading, the filter plate continues to be pulled to the right until it is stopped when it hits the right filter plate. At this time, the filter plate handle of the right filter plate overcomes the torsion spring in the stop claw and presses down the stop claw.

[0040] 3) The pull plate trolley moves to the left, and the pull plate claws leave the filter plate handle. At the same time, the pressed-down stop claws, because their front ends are arc-shaped and their front end height is lower than the filter plate handle, are pressed down by the right end of the filter plate handle. When the stop claws just leave the handle, their front end height is still lower than the handle of the filter plate that was just pulled over. Therefore, the entire trolley can smoothly pass to the left.

[0041] 4) When the trolley moves to the left, the pull plate claw is pressed down when it touches the next filter plate handle. The trolley continues to move to the left, and after passing the filter plate handle, the pull plate claw is between the next two filter plate handles. At the same time, the stop claw touches the filter plate handle and is pressed down, and the pull plate trolley stops. The following actions are in the same order as 2) and 3) until all filter plates are opened.

[0042] 5) After the trolley pulls the last filter plate, it continues to move to the left. At this time, the trolley's push rod slide hits the left baffle and is pushed to the right. The grooved upper surface of the push rod slide then pushes the middle roller of the swing push rod upwards. The end roller of the swing push rod pushes the end of the pull plate claw, causing the pull plate claw to rotate clockwise. When the middle roller of the swing push rod moves from the groove of the push rod slide to its upper surface, the pull plate claw is exactly in a horizontal position and remains there. Figure 3 As shown.

[0043] 6) After the pull plate claw is horizontal, the pull plate trolley begins to move to the initial position to the right. At this time, the height of the pull plate claw is lower than that of the filter plate handle, so it can pass directly without being obstructed by the filter plate handle; the upper surface of the stop claw is arc-shaped, so it can pass smoothly through the filter plate handle. Each time it passes through the filter plate handle, it is lifted once by the torsion spring inside the stop claw.

[0044] 7) When the pull plate trolley reaches its initial position, the push rod slide is pushed to the left after hitting the right baffle. The middle roller of the swing push rod moves from the upper surface of the push rod slide into the groove of the slide. The swing push rod rotates counterclockwise. At the same time, under the torsion of the torsion spring in the pull plate claw, the pull plate claw changes from the horizontal direction to the vertical direction, returning to the initial state, preparing for the next pull plate.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pull-plate trolley with a locking pull-plate claw structure via a swing-top rod, characterized in that, Includes a swing rod, rod slide, lever bracket, pull plate claw, stop claw, left baffle, right baffle, slide block and chain groove; The swing rod is an L-shaped rod with rollers installed in the middle and at both ends. The other end of the swing rod is installed inside the wrench bracket via a connecting shaft. The lever bracket is fixed on the slide block. The push rod slide is placed in the groove of the lever bracket and both ends can extend out from the groove. The middle roller of the swing push rod contacts the upper surface of the push rod slide. The upper surface of the push rod slide is provided with a groove with a continuous tangential surface. As the push rod slide moves, the end roller of the swing push rod can extend or retract from the opening on the lever bracket, thereby driving the lever claw to rotate around the lever claw mounting axis, so that the lever claw remains in a horizontal or vertical state. The pull-plate claw and the stop claw are mounted on the pull-plate bracket; the slide is mounted on the chain groove and can move on the chain groove. The left and right baffles are installed on the chain groove, located on both sides of the pull plate trolley, and at the end of the pull plate trolley's stroke, both directly opposite the two ends of the top rod slide.

2. The pull plate trolley with a locking pull plate claw structure via a swinging top rod according to claim 1, characterized in that: Two limiting protrusions are provided on one side of the groove.

3. The pull plate trolley with a locking pull plate claw structure via a swinging top rod according to claim 1, characterized in that: A torsion spring is installed inside the pull plate claw, which is connected in series with the mounting shaft and mounted on the pull wrench bracket through the ear plate. One end of the torsion spring presses on the inner side of the pull plate claw, and the other end presses on the upper surface of the pull wrench bracket. Under the action of the torsion force of the torsion spring, the pull plate claw naturally presents a vertical direction.

4. A pull-plate trolley with a locking pull-plate claw structure via a swing-top rod as described in claim 1 or 3, characterized in that: A torsion spring is also installed inside the stop pawl, which is connected in series with the mounting shaft and mounted on the lever bracket via the ear plate; one end of the torsion spring presses on the inner side of the stop pawl, and the other end presses on the upper surface of the lever bracket. The upper surface of the stop pawl is arc-shaped, and the stop pawl naturally presents a vertical direction under the torsion of the torsion spring.

5. A pull-plate trolley with a locking pull-plate claw structure via a swing-top rod according to claim 1, characterized in that: A U-shaped shaft seat is fixed on the lower surface of the wrench bracket, and the other end of the swing rod is mounted on the U-shaped shaft seat through a connecting shaft.

Images