Valve plate device

Abstract

The utility model discloses a valve plate device which comprises a valve plate body, two arc-shaped grooves are formed in the top end of the valve plate body, the two arc-shaped grooves are distributed around the center of the valve plate body, a gap is reserved between the adjacent ends of the two arc-shaped grooves, and extending plates are arranged at the two ends in the two arc-shaped grooves in a telescopic mode. Arc-shaped plates are fixed to the opposite ends of the two extending plates, damping blocks are fixed to the sides, close to each other, of the two arc-shaped plates, when oil passes through arc-shaped grooves, the oil can make contact with the multiple damping blocks on the arc-shaped plates, gaps are formed between every two adjacent damping blocks, and damping grooves are formed by the gaps; the multiple damping grooves can conduct multi-stage flow division on passing oil liquid, and flow pulsation and vibration noise can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of distribution plates, and particularly to a distribution plate device. Background Art

[0002] In an automated production line, a hydraulic motor is a common component. Some existing hydraulic motors often vibrate during use. The vibration sources of the hydraulic motor come from two aspects: structural vibration and fluid vibration. Among them, the fluid vibration mainly stems from the flow pulsation and pressure pulsation generated by the fluid flow inside the hydraulic motor.

[0003] Due to the geometric structure and distribution mechanism of the distribution plate, and the compressibility of the hydraulic fluid, etc., the fluid flow in the hydraulic motor will inevitably cause flow pulsation. The dynamic change of the flow pulsation will cause interaction between the parts inside the hydraulic motor, thereby causing the hydraulic motor to vibrate. This will not only cause vibration and collision of the parts inside the hydraulic motor, but also reduce the service life.

[0004] Therefore, it is necessary to propose a distribution plate device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a distribution plate device to solve the problems of vibration and collision of the parts inside the pump and reduction of the service life.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A distribution plate device includes a distribution plate body. Two arc-shaped grooves are opened at the top end of the distribution plate body. The two arc-shaped grooves are distributed around the center of the distribution plate body. And there is a gap at one adjacent end of the two arc-shaped grooves. Telescopic plates are arranged at both ends inside the two arc-shaped grooves. Arc-shaped plates are fixed at one opposite end of the two telescopic plates. Damping blocks are fixed on one side where the two arc-shaped plates are close to each other. The damping block is set as a right trapezoid, and the area of the upper end of the right trapezoid is smaller than that of the bottom end. The right-angled side of the right trapezoid is fixed on the arc-shaped plate. A plurality of damping blocks are provided, and the two adjacent damping blocks in the horizontal direction are distributed in a staggered manner. The telescopic plate and the arc-shaped plate are slidably matched inside the corresponding arc-shaped groove.

[0007] Preferably, the two arc-shaped grooves are distributed along the same circumference at the top end of the distribution plate body, and the two arc-shaped grooves penetrate through the bottom end of the distribution plate body at the same time.

[0008] Preferably, sliding grooves are embedded at one adjacent end of the two arc-shaped grooves, and the two sliding grooves are communicated. A central plate is fixed at the communicating part of the two sliding grooves. Springs are fixed between both sides of the central plate and the corresponding arc-shaped plate, and the sliding grooves are opened in the gap left at one adjacent end of the two arc-shaped grooves.

[0009] Preferably, a central circular groove is opened at the center of the distribution plate body.

[0010] Preferably, a plurality of connection holes are formed in the outer edge at the top end of the distribution disk body, and the plurality of connection holes are equidistantly distributed around the center of the distribution disk body, and the connection holes penetrate through the bottom end of the distribution disk body.

[0011] Preferably, a groove is provided between the connection hole and the arc-shaped groove. The groove is formed in the top end of the distribution disk body, and the groove is arranged in a ring shape.

[0012] Preferably, a gap is provided between two adjacent damping blocks horizontally or vertically.

[0013] The beneficial technical effects of the present utility model: When the oil fluid passes through the inside of the arc-shaped groove, the oil fluid will contact with a plurality of damping blocks on the arc-shaped plate. Since a gap is provided between two adjacent damping blocks, the gap forms a damping groove, and the plurality of damping grooves can perform multi-stage diversion on the passing oil fluid, and can effectively reduce the flow pulsation and vibration noise.

[0014] Since the plurality of damping blocks are arranged in a right trapezoid shape, the hypotenuse of the right trapezoid faces away from the corresponding arc-shaped plate, and the area of the upper end of the right trapezoid is smaller than that of the bottom end. When the oil fluid flows vertically, the oil fluid presses against the hypotenuse and causes the arc-shaped plate to retract into the inside of the sliding groove, converting a part of the impact force of the oil fluid into a lateral extrusion force. Further, when the impact force of the oil fluid is too large, the retraction of the arc-shaped plate can expand the area of the arc-shaped groove, facilitating the passage of more oil fluid. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the distribution disk device of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the sliding groove of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the spring of the present utility model.

[0018] Figure 4 For the present utility model Figure 1 The enlarged schematic diagram at position A.

[0019] In the figure: 1, distribution disk body; 2, groove; 3, connection hole; 4, arc-shaped groove; 5, central circular groove; 6, extending plate; 7, arc-shaped plate; 8, damping block; 9, sliding groove; 10, central plate; 11, spring. Detailed Embodiment

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0021] As Figure 1 - Figure 4 shown, the present utility model provides a valve plate device, including a valve plate body 1. Two arc-shaped grooves 4 are opened at the top end of the valve plate body 1. The two arc-shaped grooves 4 are distributed around the center of the valve plate body 1. The two arc-shaped grooves 4 are distributed along the same circumference at the top end of the valve plate body 1. The two arc-shaped grooves 4 penetrate through the bottom end of the valve plate body 1 at the same time, that is, the two arc-shaped grooves 4 can be combined into a circle for distribution, and the two arc-shaped grooves 4 can be used as an oil outlet and an oil inlet respectively.

[0022] A groove 2 is arranged between the connection hole 3 and the arc-shaped groove 4. The groove 2 is opened at the top end of the valve plate body 1, and the groove 2 is arranged in a ring shape.

[0023] Moreover, a spacing is left at each adjacent end of the two arc-shaped grooves 4. Telescopic plates 6 are arranged at both ends inside the two arc-shaped grooves 4. Arc-shaped plates 7 are fixed at the opposite ends of the two telescopic plates 6. Damping blocks 8 are fixed on the sides of the two arc-shaped plates 7 close to each other. The damping blocks 8 are arranged in a right trapezoid shape, and the area of the upper end of the right trapezoid is smaller than that of the bottom end. The right-angled side of the right trapezoid is fixed on the arc-shaped plate 7. A plurality of damping blocks 8 are provided, and the horizontally adjacent damping blocks 8 are distributed in a staggered manner. The telescopic plates 6 and the arc-shaped plates 7 are slidably matched inside the corresponding arc-shaped grooves 4, and gaps are arranged between the horizontally adjacent or vertically adjacent damping blocks 8.

[0024] In the actual operation of the present utility model, when the oil fluid passes through the inside of the arc-shaped groove 4, the oil fluid will contact a plurality of damping blocks 8 on the arc-shaped plate 7. Since gaps are arranged between two adjacent damping blocks 8, the gaps form damping grooves, and the plurality of damping grooves can perform multi-stage diversion on the passing oil fluid, effectively reducing the flow pulsation and vibration noise.

[0025] Sliding grooves 9 are embedded at the adjacent ends of the two arc-shaped grooves 4, and the two sliding grooves 9 are communicated. A central plate 10 is fixed at the communicating part of the two sliding grooves 9. Springs 11 are fixed between the two sides of the central plate 10 and the corresponding arc-shaped plates 7, and the sliding grooves 9 are opened in the spacing left at the adjacent ends of the two arc-shaped grooves 4.

[0026] Furthermore, since multiple damping blocks 8 are arranged in a right trapezoid shape, the hypotenuse of the right trapezoid faces away from the corresponding arc plate 7, and the area of the upper end of the right trapezoid is smaller than that of the bottom end. When the oil flows vertically, the oil squeezes the hypotenuse and causes the arc plate 7 to retract into the sliding groove 9, converting a part of the impact force of the oil into a lateral extrusion force. Further, when the impact force of the oil is too large, the retraction of the arc plate 7 can expand the area of the arc groove 4, facilitating the passage of more oil.

[0027] A central circular groove 5 is formed at the center of the distribution disc body 1, and a plurality of connecting holes 3 are formed at the outer edge of the top end of the distribution disc body 1. The plurality of connecting holes 3 are equidistantly distributed around the center of the distribution disc body 1. The connecting holes 3 penetrate through the bottom end of the distribution disc body 1. The connecting holes 3 are used for fixedly connecting the distribution disc body 1 and other accessories of the hydraulic motor, and specifically, screws or pins can be used for connection.

Claims

1. A port plate device, characterized in that: It includes a distribution disk body (1). Two arc-shaped grooves (4) are provided at the top end of the distribution disk body (1). The two arc-shaped grooves (4) are distributed around the center of the distribution disk body (1), and there is a gap at each adjacent end of the two arc-shaped grooves (4). Telescopic extension plates (6) are provided at both ends inside the two arc-shaped grooves (4). Arc-shaped plates (7) are fixed to the opposite ends of the two extension plates (6). Damping blocks (8) are fixed to the mutually approaching sides of the two arc-shaped plates (7). A plurality of the damping blocks (8) are provided, and the two horizontally adjacent damping blocks (8) are distributed in a staggered manner in height. The extension plates (6) and the arc-shaped plates (7) are slidably fitted inside the corresponding arc-shaped grooves (4).

2. The port plate device according to claim 1, characterized in that: The two arc-shaped grooves (4) are distributed along the same circumference at the top end of the distribution disk body (1), and the two arc-shaped grooves (4) penetrate through the bottom end of the distribution disk body (1) at the same time.

3. The port plate device according to claim 1, characterized in that: Sliding grooves (9) are embedded at the mutually approaching ends of the two arc-shaped grooves (4), and the two sliding grooves (9) are communicated. A central plate (10) is fixed at the communicating part of the two sliding grooves (9). Springs (11) are fixed between both sides of the central plate (10) and the corresponding arc-shaped plates (7), and the sliding grooves (9) are provided within the gap left at the adjacent ends of the two arc-shaped grooves (4).

4. The flow distribution plate device according to claim 1, characterized in that: A central circular groove (5) is provided at the center of the distribution disk body (1).

5. The port plate device according to claim 1, characterized in that: A plurality of connection holes (3) are provided at the outer edge of the top end of the distribution disk body (1). The plurality of connection holes (3) are equidistantly distributed around the center of the distribution disk body (1), and the connection holes (3) penetrate through the bottom end of the distribution disk body (1).

6. The port plate device according to claim 5, characterized in that: A groove (2) is provided between the connection hole (3) and the arc-shaped groove (4). The groove (2) is provided at the top end of the distribution disk body (1), and the groove (2) is annularly arranged.

7. The flow distribution plate device according to claim 1, characterized in that: A gap is provided between every two horizontally adjacent or vertically adjacent damping blocks (8).

8. The port plate device according to claim 1, characterized in that: The damping block (8) is trapezoidal, and the area of the upper end of the right trapezoid is smaller than that of the bottom end. The right-angled side of the right trapezoid is fixed to the arc-shaped plate (7).

Images