Flange type thin oil vibration exciter

Abstract

The utility model discloses a flange type thin oil vibration exciter, and relates to the technical field of vibration exciters. The rotary shaft comprises a fixed shell, a rotary shaft assembly, an inner sleeve, shaft seals and an eccentric block, the two ends of the fixed shell are fixedly communicated with main mounting rings, the shaft seals are movably connected into the two main mounting rings, and bearings are fixed to the ends, close to each other, of the two shaft seals; the shaft body jointly penetrates through the two shaft seals and the two bearings, a shaft sleeve is fixed on the outer peripheral surface of the shaft body between the two bearings, the outer side of the shaft sleeve is movably connected with an inner sleeve, and eccentric blocks are in key connection with the peripheral sides of the shaft body at the ends, far away from each other, of the two shaft seals. Through the arrangement of the fixed shell, the rotating shaft assembly, the inner sleeve, the shaft seal and the eccentric block, the problems that sealing can be achieved only through larger pressing force between the lubricating oil shell and the shaft seal of the flange type thin oil vibration exciter, assembling is inconvenient, and lubricating oil in the whole shell is not used uniformly are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of exciter, in particular, relate to a flange type thin oil exciter. BACKGROUND

[0002] The flange type thin oil exciter is a kind of excitation device widely used in vibrating screen, feeder and conveyor and other equipment, and its core function is to generate centrifugal force through eccentric block rotation to drive equipment vibration.The equipment adopts thin oil lubrication system and flange type mounting structure, with the characteristics of high efficiency, stability and durability, thin oil lubrication reduces friction and temperature rise through low viscosity lubricating oil, suitable for high load and long time continuous operation working condition, and flange type installation simplifies the structure and improves the transmission efficiency of excitation force, but the flange type thin oil exciter still has the following disadvantages in actual use:

[0003] In the working of the flange type thin oil exciter, the lubricating oil shell is usually closed by shaft seal, and the cross section of one fourth of the inner cavity of the shell is U-shaped, which is matched with the shaft seal, when the shaft seal with U-shaped inner cavity is matched with the shell, larger compression force is needed to seal due to larger caliber, which affects the sealing effect;

[0004] Secondly, the lubricating oil shell of the flange type thin oil exciter is designed as a cavity, and the lubricating oil directly enters the position needing sealing of the bearing through natural infiltration, but with the work, the lubricating oil at the bearing position flows slowly, and the lubricating oil in the whole shell is not used uniformly. INVENTION CONTENTS

[0005] The utility model discloses a flange type thin oil exciter, by setting fixed shell, pivot assembly, inner cover, shaft seal and eccentric block, solve the problem that the flange type thin oil exciter lubricating oil shell and shaft seal need larger compression force to realize sealing, inconvenient assembly, and the lubricating oil in the whole shell is not used uniformly.

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] The utility model discloses a flange type thin oil exciter, including fixed shell, pivot assembly, inner cover, shaft seal and eccentric block, both ends of fixed shell all fixedly communicate with main installation ring, two main installation rings all movably connect with the shaft seal, and the one end of two shaft seals close to each other all are fixed with bearing, and the common setting of two shaft seals and two bearings is pivot assembly, pivot assembly includes shaft body and shaft sleeve, the common through of two shaft seals and two bearings is passed to the shaft body, and two shaft seals and two bearings all are with the interference fit of shaft body, and the outer periphery of the shaft body between two bearings is fixed with the shaft sleeve, the outer side movable joint of shaft sleeve is connected with the inner cover, and the circumferential side of the shaft body of the one end of two shaft seals away from each other all is keyed with eccentric block, in working, through the fixed shell containing lubricating oil in it, pivot assembly connects fixed shell, inner cover, shaft seal and eccentric block together, and through fixed shell installation setting on the equipment that needs to drive vibration, inner cover connects the rotating arm of stirring lubricating oil, through the shaft seal and install together between the shaft body and main installation ring, in the rotation of shaft body, eccentric block rotates together, and generates excitation force.

[0008] Further, the fixed shell is provided with an inner cavity, the circumferential side of the fixed shell is fixed with an installation disc, the end of the fixed shell outside one main installation ring is symmetrically fixed and communicated with a transfusion port, and the fixed shell is provided with an Ω-shaped inner cavity in working, thereby reducing the leakage of lubricating oil.

[0009] Further, the pivot assembly further comprises a connecting key and a mounting bracket, the circumferential side of the shaft sleeve is movably connected with the connecting key, the two ends of the shaft body are movably connected with the mounting bracket, the two ends of the shaft body are provided with convex openings, the connecting key on the shaft sleeve is movably connected with the inner cover, the inner cover is driven to rotate, the convex openings on the shaft body are movably connected with the external driving structure in working, and the pivot assembly is driven to rotate.

[0010] Further, the circumferential side of the inner cover is symmetrically fixed with a rotating arm, and the connecting key is movably connected in the inner cover; in working, the rotating arm on the inner cover rotates with the shaft body, thereby stirring and mixing the lubricating oil in the fixed shell, and the uniformity of the lubricating oil is improved.

[0011] Further, the one end of two shaft seals away from each other is respectively abutted with two eccentric blocks, the circumferential side of the shaft seal is fixed with an outer installation ring, and the two outer installation rings are respectively abutted at the end portions of the two main installation rings, so that the outer installation ring is installed on the shell.

[0012] Further, the one end of two eccentric blocks away from each other is fixed with a counterweight piece, the installation bolt is inserted through the counterweight piece, and the installation bolt is threadedly connected in the eccentric block after penetrating through the counterweight piece, and the mounting bracket is abutted at the one end of two eccentric blocks away from each other; in working, the counterweight piece counterbalances the eccentric block, and the excitation state is adjusted.

[0013] The utility model has the following beneficial effects:

[0014] The utility model discloses a fixed shell, shaft assembly and shaft seal and eccentric block are set up, solved the flange type thin oil exciter lubricating oil shell and the shaft seal between the need greater compression force to realize sealing, the assembly is inconvenient problem, when fixed shell is set up on the structure that needs to vibrate through the mounting disc of its periphery, again the bolt of installation is inserted mounting disc, again spin, immediately again through a mounting frame setting in the mounting structure, again through the bolt of installation is inserted mounting frame and is spun into the structure of installation, through another mounting frame installation setting on the drive structure, through the output end of drive structure and the convex shape opening swing joint on the shaft body, when drive structure drive shaft body rotates, drives eccentric block to rotate, produces the exciting force, and through the inner chamber of omega shape setting in fixed shell, reduces the lubricating liquid to enter the shaft seal, reduces the leakage of lubricating oil in work, makes the flange type thin oil exciter lubricating oil shell and the shaft seal between the need greater compression force to realize sealing, and the assembly is more convenient.

[0015] The utility model discloses a fixed shell, shaft assembly and inner cover are set up, solved the lubricating oil in the flange type thin oil exciter lubricating oil shell and used unevenly, after starting the structure of drive, the structure of drive rotates, drives shaft body to rotate, in the rotation of shaft body, drives the rotation of inner cover and the rotation arm of inner cover periphery, along with the rotation of rotation arm, stirs the lubricating oil in fixed shell, makes the lubricating oil can be stirred, and more evenly flows in two bearings, increases the lubricating effect of lubricating oil to bearing, makes the lubricating oil in the flange type thin oil exciter lubricating oil shell and use more evenly. ACCURACY

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will to the embodiment description needed to use the drawing briefly introduce, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0017] Figure 1 It is a flange type thin oil exciter part after cutting open structure perspective drawing;

[0018] Figure 2 It is fixed shell part after cutting open structure perspective drawing;

[0019] Figure 3 It is the structure perspective drawing of shaft assembly;

[0020] Figure 4 It is the structure perspective drawing of inner cover;

[0021] Figure 5 It is the structure perspective drawing of shaft seal;

[0022] Figure 6 This is a three-dimensional structural diagram of the eccentric block;

[0023] Figure 7 This is a three-dimensional view of the assembly structure of a flange-type thin oil vibrator.

[0024] Figure label:

[0025] 1. Fixed housing; 101. Inner cavity; 102. Mounting plate; 103. Infusion port; 104. Main mounting ring; 2. Rotary shaft assembly; 201. Shaft body; 2011. Convex opening; 202. Bushing; 203. Connecting key; 204. Mounting bracket; 3. Inner sleeve; 301. Rotary arm; 4. Shaft seal; 401. Bearing; 402. Outer mounting ring; 5. Eccentric block; 501. Counterweight; 502. Mounting bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0027] Please see Figures 1-7This utility model relates to a flange-type thin oil vibrator, comprising a fixed housing 1, a rotating shaft assembly 2, an inner sleeve 3, a shaft seal 4, and an eccentric block 5. Both ends of the fixed housing 1 are fixedly connected to main mounting rings 104. During operation, the inner sleeve 3 is placed within the fixed housing 1. An outer mounting ring 402 is mounted on the main mounting rings 104, connecting the shaft seal 4 to the fixed housing 1. The fixed housing 1 contains thin lubricating oil to lubricate the bearing 401. Shaft seals 4 are movably connected within both main mounting rings 104, sealing the gap between the main mounting rings 104 and the shaft body 201. Bearings 401 are fixed to the ends of the two shaft seals 4 that are close to each other. During operation, the bearings 401 restrict the position of the inner sleeve 3 on the circumference of the shaft sleeve 202 on the shaft body 201 and provide support for the shaft body 201. The rotating shaft assembly 2 is shared within the two shaft seals 4 and the two bearings 401. During the rotation of the shaft assembly 2, the eccentric block 5 is driven to rotate. The shaft assembly 2 includes a shaft body 201 and a bushing 202. The shaft body 201 passes through two shaft seals 4 and two bearings 401. Both shaft seals 4 and bearings 401 are interference-fitted with the shaft body 201. During operation, the shaft body 201 rotates, driving the eccentric block 5 to rotate. At the same time, the eccentric block 5 generates a vibration force during rotation. The bushing 202 is fixed on the outer circumference of the shaft body 201 between the two bearings 401. The bushing 202 connects the inner sleeve 3 to the fixed shell 1. The inner sleeve 3 is movably connected to the outside of the bushing 202. When the two rotating arms 301 connected to the inner sleeve 3 rotate, they agitate the lubricating oil in the fixed shell 1. The two shaft seals 4 are keyed to the circumference of the shaft body 201 at opposite ends. The eccentric block 5 generates a vibration force during the rotation of the shaft body 201.

[0028] Specifically, the fixed housing 1 has an inner cavity 101, and an installation plate 102 is fixed around the periphery of the fixed housing 1. A liquid inlet 103 is symmetrically fixed and connected to the end of the fixed housing 1 outside a main installation ring 104. When the fixed housing 1 is working, the inner cavity 101 is arranged in an Ω shape to ensure that the lubricating fluid is contained in the fixed housing 1. The installation plate 102 on the fixed housing 1 is installed on the equipment installation structure that needs to be vibrated. After the two liquid inlets 103 on the fixed housing 1 are connected to the interface of the circulating lubricating oil equipment, the fixed housing 1 is installed.

[0029] Furthermore, the rotating shaft assembly 2 also includes a connecting key 203 and a mounting bracket 204. The connecting key 203 is movably connected to the periphery of the bushing 202, and the mounting bracket 204 is movably connected to both ends of the shaft 201. Both ends of the shaft 201 have convex openings 2011. The connecting key 203 restricts the inner sleeve 3 to the periphery of the bushing 202. The mounting bracket 204 is movably connected to both ends of the shaft 201 and can be connected to the driving structure and the supporting structure. The driving structure is inserted into the mounting bracket 204 and into the convex opening 2011, and is restricted together with the shaft 201, so that when the driving structure drives the shaft 201 to rotate during operation, it drives the eccentric block 5 to rotate.

[0030] The operation process of this embodiment is as follows: During operation, after the fixed shell 1 is set on the structure to be vibrated by the mounting plate 102 on its periphery, the mounting bolt is inserted into the mounting plate 102 and screwed in. Then, it is set on the mounting structure by a mounting bracket 204. The mounting bolt is then inserted into the mounting bracket 204 and screwed into the mounting structure. It is then installed on the drive structure by another mounting bracket 204. The output end of the drive structure is movably connected to the convex opening 2011 on the shaft 201. When the drive structure drives the shaft 201 to rotate, it drives the eccentric block 5 to rotate, generating excitation force. Furthermore, through the Ω-shaped inner cavity 101 inside the fixed shell 1, the lubricant entering the shaft seal 4 is reduced, thus reducing the leakage of lubricating oil during operation. Specific Implementation Example 2

[0031] Please see Figures 1-5 Based on the first specific embodiment, a rotating arm 301 is symmetrically fixed on the periphery of the inner sleeve 3, and a connecting key 203 is movably connected inside the inner sleeve 3. Through the cooperation of the connecting key 203, the shaft 201 and the inner sleeve 3 are restricted together.

[0032] Specifically, the ends of the two shaft seals 4 that are far apart from each other abut against the two eccentric blocks 5 respectively. The outer mounting rings 402 are fixed on the periphery of the shaft seals 4. The two outer mounting rings 402 abut against the ends of the two main mounting rings 104 respectively. When the shaft seals 4 are working, they are movably connected to the shaft body 201 and the outer mounting rings 402 are installed on the main mounting rings 104, so that the gap between the shaft body 201 and the main mounting rings 104 is sealed.

[0033] Furthermore, each of the two eccentric blocks 5 has a counterweight 501 fixed at one of its far ends. Each counterweight 501 has a mounting bolt 502 inserted through it, and the mounting bolt 502 is threaded into the eccentric block 5 after passing through the counterweight 501. The mounting bracket 204 abuts against the far ends of the two eccentric blocks 5. When the eccentric block 5 is working, the counterweight 501 on it adjusts the excitation force of the eccentric block 5. After the mounting bolt 502 is inserted into the counterweight 501, it is screwed into the eccentric block 5, and the counterweight 501 is installed on the eccentric block 5.

[0034] The operation process of this embodiment is as follows: During operation, after the drive structure is started, the drive structure rotates, which drives the shaft 201 to rotate. As the shaft 201 rotates, it drives the inner sleeve 3 and the rotating arm 301 on the periphery of the inner sleeve 3 to rotate. As the rotating arm 301 rotates, it agitates the lubricating oil in the fixed shell 1, so that the lubricating oil can be agitated and flow more evenly in the two bearings 401, thereby increasing the lubrication effect of the lubricating oil on the bearings 401.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flange-type thin oil vibrator, comprising a fixed housing (1), a rotating shaft assembly (2), an inner sleeve (3), a shaft seal (4), and an eccentric block (5), characterized in that: Both ends of the fixed shell (1) are fixedly connected to the main mounting rings (104). The two main mounting rings (104) are movably connected to the shaft seals (4). The two shaft seals (4) are fixed to the bearings (401) at their close ends. The two shaft seals (4) and the two bearings (401) are jointly provided with a rotating shaft assembly (2). The rotating shaft assembly (2) includes a shaft body (201) and a bushing (202). The shaft body (201) passes through the two shaft seals (4) and the two bearings (401). The two shaft seals (4) and the two bearings (401) are both interference-fitted with the shaft body (201). The bushing (202) is fixed on the outer circumferential surface of the shaft body (201) between the two bearings (401). The bushing (202) is movably connected to the outer side of the bushing (202). The two shaft seals (4) are keyed to the circumferential sides of the shaft body (201) at their far ends. Eccentric blocks (5) are keyed to the circumference of the shaft body (201) at their far ends.

2. The flange-type thin oil vibrator according to claim 1, characterized in that: The fixed shell (1) has an inner cavity (101) and an installation plate (102) is fixed on the periphery of the fixed shell (1). An infusion port (103) is symmetrically fixed and connected to the end of the fixed shell (1) outside the main installation ring (104).

3. The flange-type thin oil vibrator according to claim 1, characterized in that: The rotating shaft assembly (2) also includes a connecting key (203) and a mounting bracket (204). The connecting key (203) is movably connected to the periphery of the bushing (202). The mounting bracket (204) is movably connected to both ends of the shaft body (201). A convex opening (2011) is provided at both ends of the shaft body (201).

4. A flange-type thin oil vibrator according to claim 3, characterized in that: The inner sleeve (3) is symmetrically fixed with a rotating arm (301) on its periphery, and the connecting key (203) is movably connected inside the inner sleeve (3).

5. A flange-type thin oil vibrator according to claim 3, characterized in that: The ends of the two shaft seals (4) that are far apart from each other are respectively abutted against the two eccentric blocks (5). The outer mounting rings (402) are fixed on the periphery of the shaft seals (4), and the two outer mounting rings (402) abut against the ends of the two main mounting rings (104).

6. A flange-type thin oil vibrator according to claim 3, characterized in that: Each of the two eccentric blocks (5) has a counterweight plate (501) fixed at one end away from each other. Each counterweight plate (501) has a mounting bolt (502) inserted through it. The mounting bolt (502) passes through the counterweight plate (501) and is threaded into the eccentric block (5). The mounting bracket (204) abuts against the two eccentric blocks (5) at the ends away from each other.

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