Stationary blade group sealing device of rotating blade type hydraulic steering engine

Abstract

The utility model relates to the technical field of rotating vane type hydraulic steering engines, and discloses a stationary vane group sealing device of a rotating vane type hydraulic steering engine, which comprises a lower cylinder cover, a cylinder body and an upper cylinder cover, the cylinder body is fixedly arranged on the upper surface of the lower cylinder cover, the upper cylinder cover is fixedly arranged on the upper surface of the cylinder body, and a scale plate is arranged on the upper surface of the upper cylinder cover. Two sets of hanging rings are fixedly installed on the upper surface of the scale plate, a plurality of stationary blades are installed in the cylinder body, a rotor is installed in the cylinder body, sealing assemblies are installed on the two sides of the stationary blades, the sealing ends of the sealing assemblies are attached to the outer surfaces of the stationary blades, and fixing mechanisms are installed on one sides of the sealing assemblies. The fixed end of the fixing mechanism is connected with the stationary blade through a sealing assembly. Through the arrangement of the sealing assembly, various conditions of the stationary blade in the working process can be effectively handled, the sealing reliability is greatly improved, the sealing effect can reduce leakage of hydraulic oil, and the working efficiency of the rotating blade type hydraulic steering engine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotating vane type hydraulic steering engine technical field, concretely is a rotating vane type hydraulic steering engine's stator vane group sealing device. BACKGROUND

[0002] The hydraulic steering engine is a kind of device using hydraulic transmission principle to realize the rotation of ship or aircraft rudder surface, is one of the core components of the control system of vehicle such as ship and aircraft, provides power through hydraulic oil pump, realizes the rotation of rudder surface by hydraulic cylinder, to control the heading of ship or aircraft. Its working principle is to drive rudder surface using the flow and pressure change of hydraulic oil, has the advantages of compact structure, high transmission efficiency, fast response speed etc.

[0003] The utility model discloses a rotating vane type hydraulic steering engine's stator vane group sealing device, it includes sealing ring pressure plate, sealing ring, stator vane, the stator vane is connected on cylinder body by connecting bolt, the sealing ring and sealing ring pressure plate all have two, two sealing rings are installed at the both sides of stator vane respectively, two sealing ring pressure plates are set at the both sides of sealing ring respectively, and are fixed on stator vane using connecting bolt respectively;Sealing ring one side is provided with the lip that turns outward, is provided with slot simultaneously. The present application increases the internal sealing performance of rotating vane type hydraulic steering engine, solves the internal leakage of hydraulic oil of rotating vane type hydraulic steering engine, thereby greatly improves the steering performance of hydraulic steering engine, improves the steering flexible performance of rotating vane type hydraulic steering engine, and retains all the advantages of original rotating vane type hydraulic steering engine.

[0004] The stator vane group sealing device of the rotating vane type hydraulic steering engine disclosed in the above file has the following defects: the sealing ring of the technical scheme is prone to displacement and deformation when facing the vibration and displacement during the working process of the stator vane, and due to the inability to well adapt to the change of the surface state of the stator vane, a gap is easily generated between the stator vane and the sealing device, leading to the leakage of hydraulic oil.

[0005] Therefore, the existing stator vane group sealing device of the rotating vane type hydraulic steering engine does not have a good sealing mechanism, and needs to be improved to provide a stator vane group sealing device of the rotating vane type hydraulic steering engine. UTILITY MODEL CONTENTS

[0006] The utility model discloses a stator vane group sealing device of the rotating vane type hydraulic steering engine, solves the problem that the sealing ring in the prior art is prone to displacement and deformation when facing the vibration and displacement during the working process of the stator vane, and due to the inability to well adapt to the change of the surface state of the stator vane, a gap is easily generated between the stator vane and the sealing device, leading to the leakage of hydraulic oil.

[0007] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0008] The utility model discloses a static vane group sealing device of rotary vane type hydraulic steering gear, including lower cylinder cover, cylinder body and upper cylinder cover, the upper surface fixed mounting of lower cylinder cover has cylinder body, the upper surface fixed mounting of cylinder body has upper cylinder cover, the upper surface installation of upper cylinder cover has the scale board, the upper surface fixed mounting of scale board has two groups of lifting rings, the inside installation of cylinder body has a plurality of static vanes, the inside installation of cylinder body has rotor, both sides of static vane all install sealing assembly, the sealing end of sealing assembly and the outer surface of static vane are in conjunction, the one side of sealing assembly all installs fixed mechanism, and the fixed end of fixed mechanism is connected through sealing assembly and static vane.

[0009] Further, the sealing assembly includes a sealing block, and a plurality of support column sleeve shells are installed in the sealing block.

[0010] Further, the inner bottom of the support column sleeve shell is installed with an elastic ball.

[0011] Further, the inside of the support column sleeve shell is movably installed with a support column.

[0012] Further, the support column and the elastic ball abut.

[0013] Further, the fixed mechanism includes a fixed sleeve shell, which abuts the outer surface of the sealing block and is sleeved on the side surface of the static vane, and the end of the fixed sleeve shell is threadedly connected with a connecting bolt, which is threadedly connected through the inside of the sealing block and the inside of the static vane.

[0014] The utility model has the following beneficial effects:

[0015] (1) the sealing end of the sealing block in the sealing assembly is in conjunction with the outer surface of the static vane, plays the role of preliminary sealing, the inside of the sealing block is installed with a plurality of support column sleeve shells, the inner bottom of the support column sleeve shell is installed with an elastic ball, and the inside is movably installed with a support column, the support column and the elastic ball abut, when subjected to external pressure or slight vibration or displacement of the static vane in the working process, the elastic ball will be elastically deformed according to the stress condition, and the elastic deformation will drive the support column to move in the support column sleeve shell, thereby dynamically adjusting the sealing effect of the sealing block, so that the sealing block can better adapt to the state of the surface of the static vane, maintain the tightness of sealing, can effectively cope with various situations of the static vane in the working process, greatly improve the reliability of sealing, and this sealing effect can reduce the leakage of hydraulic oil and improve the working efficiency of the rotary vane type hydraulic steering gear.

[0016] (2) The fixed sleeve shell in the fixing mechanism abuts against the outer surface of the sealing block and is sleeved on the side surface of the stationary vane, the fixed sleeve shell and the stationary vane are connected through the connecting bolts on the end surface, the sealing assembly can be fixed through the two connecting bolts, and the condition that a plurality of bolts are required to fix the sealing assembly is avoided.

[0017] Of course, it is not necessary for any product implementing the present utility model to achieve all the advantages mentioned above simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical schemes of the embodiments of the present utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the present utility model, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 It is a whole structure schematic view of the present utility model;

[0020] Figure 2 It is a partial structure schematic view of the present utility model;

[0021] Figure 3 It is a structure split section view schematic view of the fixing mechanism and the sealing assembly of the present utility model;

[0022] Figure 4 It is an enlarged schematic view of the A structure in the present utility model; Figure 3

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] In the drawings: 1, lower cylinder cover; 2, cylinder body; 3, upper cylinder cover; 4, scale plate; 5, lifting ring; 6, stationary vane; 7, rotor; 8, sealing assembly; 801, sealing block; 802, support column sleeve shell; 803, elastic ball; 804, support column; 9, fixing mechanism; 901, fixed sleeve shell; 902, connecting bolt. DETAILED DESCRIPTION

[0025] The technical schemes in the embodiments of the present utility model will be described clearly and completely in combination with the drawings in the embodiments of the present utility model, obviously, the described embodiments are only some embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present utility model.

[0026] Please refer to Figures 1-4 ​As shown, the utility model is a kind of static vane group sealing device of rotary vane hydraulic steering gear, including lower cylinder cover 1, cylinder body 2 and upper cylinder cover 3, the upper surface of lower cylinder cover 1 is fixedly installed with cylinder body 2, the upper surface of cylinder body 2 is fixedly installed with upper cylinder cover 3, the upper surface of upper cylinder cover 3 is installed with scale board 4, the upper surface of scale board 4 is fixedly installed with two groups of lifting ring 5, the inside of cylinder body 2 is installed with several static vanes 6, the inside of cylinder body 2 is installed with rotor 7, the both sides of static vane 6 are installed with sealing assembly 8, the sealing end of sealing assembly 8 and the outer surface of static vane 6 are in contact, the side of sealing assembly 8 is installed with fixed mechanism 9, and the fixed end of fixed mechanism 9 is connected with static vane 6 through sealing assembly 8.

[0027] Sealing assembly 8 includes sealing block 801, and the inside of sealing block 801 is installed with several groups of support column sleeve shell 802, and sealing block 801 is arranged at one side of static vane 6.

[0028] The inner bottom of support column sleeve shell 802 is installed with elastic ball 803.

[0029] The inside of support column sleeve shell 802 is movably installed with support column 804.

[0030] Support column 804 and elastic ball 803 abut.

[0031] The sealing end of sealing block 801 in sealing assembly 8 is in contact with the outer surface of static vane 6, plays the role of preliminary sealing, the inside of sealing block 801 is installed with several groups of support column sleeve shell 802, the inner bottom of support column sleeve shell 802 is installed with elastic ball 803, and the inside is movably installed with support column 804, and support column 804 abuts with elastic ball 803, when being subjected to external pressure or slight vibration or displacement of static vane 6 in working process, elastic ball 803 will be elastically deformed according to stress condition, and the elastic deformation will push support column 804 to move in support column sleeve shell 802, thereby dynamically adjusting the sealing effect of sealing block 801, so that sealing block 801 can better adapt to the state of the surface of static vane 6, maintain the tightness of sealing, can effectively cope with various situations of static vane 6 in working, greatly improve the reliability of sealing, and this sealing effect can reduce the leakage of hydraulic oil, improve the working efficiency of rotary vane hydraulic steering gear.

[0032] Fixed mechanism 9 includes fixed sleeve shell 901, and fixed sleeve shell 901 abuts on the outer surface of sealing block 801 and is sleeved on the side of static vane 6, and the end of fixed sleeve shell 901 is screw-connected with connecting bolt 902, and connecting bolt 902 is screw-connected through the inside of sealing block 801 and the inside of static vane 6.

[0033] The fixed sleeve 901 in the fixing mechanism 9 abuts against the outer surface of the sealing block 801 and is sleeved on the side surface of the vane 6, the fixed sleeve 901 is connected with the vane 6 through the connecting bolts 902 on the end surface, and the sealing assembly 8 can be fixed through the two connecting bolts 902, thereby avoiding the case that a plurality of bolts are required to fix the sealing assembly 8.

[0034] In use, the sealing end of the sealing block 801 in the sealing assembly 8 is first attached to the outer surface of the vane 6, thereby playing a role of preliminary sealing, a plurality of sets of support column sleeve housings 802 are arranged in the sealing block 801, elastic balls 803 are arranged on the inner bottom of the support column sleeve housings 802, support columns 804 are movably arranged in the support column sleeve housings 802, the support columns 804 abut against the elastic balls 803, when subjected to external pressure or the vane 6 has slight vibration or displacement in the working process, the elastic balls 803 will be elastically deformed according to the force condition, the elastic deformation will push the support columns 804 to move in the support column sleeve housings 802, thereby dynamically adjusting the sealing effect of the sealing block 801, so that the sealing block 801 can better adapt to the state of the surface of the vane 6 and maintain the tightness of sealing, can effectively cope with various situations of the vane 6 in the working process, and greatly improves the reliability of sealing, the sealing effect can reduce the leakage of hydraulic oil and improve the working efficiency of the rotary vane hydraulic steering engine.

[0035] The fixed sleeve 901 in the fixing mechanism 9 abuts against the outer surface of the sealing block 801 and is sleeved on the side surface of the vane 6, the fixed sleeve 901 is connected with the vane 6 through the connecting bolts 902 on the end surface, and the sealing assembly 8 can be fixed through the two connecting bolts 902, thereby avoiding the case that a plurality of bolts are required to fix the sealing assembly 8.

[0036] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments. Apparently, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A sealing device for the stator vane group of a rotary hydraulic servo motor, comprising a lower cylinder cover (1), a cylinder body (2), and an upper cylinder cover (3), wherein the cylinder body (2) is fixedly mounted on the upper surface of the lower cylinder cover (1), the upper cylinder cover (3) is fixedly mounted on the upper surface of the cylinder body (2), a scale plate (4) is mounted on the upper surface of the upper cylinder cover (3), two sets of lifting rings (5) are fixedly mounted on the upper surface of the scale plate (4), a plurality of stator vanes (6) are installed inside the cylinder body (2), and a rotor (7) is installed inside the cylinder body (2), characterized in that: Both sides of the stationary blade (6) are provided with sealing assemblies (8), the sealing end of the sealing assembly (8) is attached to the outer surface of the stationary blade (6), one side of the sealing assembly (8) is provided with a fixing mechanism (9), the fixed end of the fixing mechanism (9) is connected with the sealing assembly (8) and the stationary blade (6).

2. The seal assembly for a stationary vane group of a rotating vane hydraulic steering gear as set forth in claim 1, wherein: The sealing assembly (8) comprises a sealing block (801), a plurality of groups of support column sleeve shells (802) are installed in the sealing block (801), and the sealing block (801) is arranged on one side of the stationary blade (6).

3. The seal assembly for a stationary vane group of a rotating vane hydraulic steering gear as set forth in claim 2, wherein: The inner bottom of the support column sleeve shell (802) is provided with an elastic ball (803).

4. The seal assembly for a stationary vane group of a rotating vane hydraulic steering gear as set forth in claim 3, wherein: The inner part of the support column sleeve shell (802) is movably provided with a support column (804).

5. The seal assembly for a stationary vane set of a rotating vane hydraulic steering gear as set forth in claim 4, wherein: The support column (804) and the elastic ball (803) are in abutment.

6. The seal assembly for a stationary vane set of a rotating vane hydraulic steering gear as set forth in claim 1, wherein: The fixing mechanism (9) comprises a fixing sleeve shell (901), the fixing sleeve shell (901) is in abutment with the outer surface of the sealing block (801) and is sleeved on the side surface of the stationary blade (6), the ends of the fixing sleeve shell (901) are threadedly connected with connecting bolts (902), and the connecting bolts (902) are threadedly connected with the inner part of the sealing block (801) and the inner part of the stationary blade (6).

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