Modular powder metallurgy bushing with replaceable bush

Abstract

The utility model discloses a modularization powder metallurgy axle sleeve of replaceable bush, including axle sleeve body, the inside of axle sleeve body is provided with installation component, and one end of axle sleeve body is provided with auxiliary assembly, through installation component that sets up in axle sleeve body, can make the replacement of bush become simple and swift, need not to disassemble whole axle sleeve component, can just replace the damaged bush, improve production efficiency, and the auxiliary assembly that sets up in axle sleeve body can realize the quick fixing and spacing of bush, effectively prevent the loosening and displacement of bush in the running process, greatly reduce the downtime of equipment.

Description

Technical Field

[0001] This utility model relates to the field of bushing technology, and more specifically, to a modular powder metallurgy bushing with replaceable bushings. Background Technology

[0002] The modular powder metallurgy bushing with replaceable bushing is a mechanical component that combines powder metallurgy technology with modularity. It is mainly used in sliding bearings, guide devices, or rotating supports. Its core feature is that the bushing body is made of powder metallurgy material, while the inner liner (i.e., the working surface) is designed as a detachable and replaceable independent module, thus taking into account wear resistance, self-lubrication, and ease of maintenance.

[0003] However, when the bushing needs to be replaced due to wear or damage, the entire bushing assembly often needs to be disassembled, or even the entire bushing needs to be replaced, which can easily affect production efficiency. The bushing lacks an effective fixing and limiting structure during installation, which can easily lead to loosening or displacement of the bushing during operation, affecting the operating accuracy and reliability of the equipment. Furthermore, bushing technology cannot achieve quick replacement of the bushing. Once the bushing is damaged, the downtime of the entire equipment will increase significantly.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a modular powder metallurgy bushing with replaceable bushings to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows: A modular powder metallurgy bushing with replaceable bushings includes a bushing body. An installation assembly is provided inside the bushing body. The installation assembly includes an installation groove inside the bushing body, and multiple positioning rods inside the installation groove. One end of two positioning rods is engaged with a first bushing. Multiple connecting grooves are provided on the side of the first bushing, and a second bushing is connected inside the connecting groove. One side of the second bushing is connected to two other positioning rods. An auxiliary assembly is provided at one end of the bushing body.

[0007] Furthermore, in order to better restrict and fix the replacement bushing quickly, the auxiliary component has an auxiliary groove 1 at one end of the bushing body, and an auxiliary cover is provided on the bushing body. The bushing 2 has an auxiliary groove 2 at one end of the bushing 1. The interior of the auxiliary groove 2 is connected to the auxiliary cover. The auxiliary cover has multiple auxiliary holes, and an elastic plunger is provided inside the auxiliary hole. One end of the elastic plunger is engaged with the interior of the auxiliary groove 1.

[0008] Furthermore, in order to better improve the stability between the bushing body and the auxiliary cover, bushing two, and bushing one, multiple mounting screws are connected to the bushing body, with one end of each screw connected to the auxiliary cover, bushing two, and bushing one, respectively.

[0009] Furthermore, in order to better protect bushing 2 and bushing 1, lubrication channels are provided inside bushing 2 and bushing 1.

[0010] Furthermore, in order to better assist lubricate the bushing 2, bushing 1, and bushing body, oil filling ports are provided on bushing 1 and bushing body, and sealing plugs are connected inside the oil filling ports.

[0011] Furthermore, in order to better install and fix the modular powder metallurgy bushing, multiple fixing holes are provided on the bushing body.

[0012] The beneficial effects of this utility model are as follows: (1) By installing the mounting components on the bushing body, the bushing replacement can be made simple and quick. There is no need to disassemble the entire bushing assembly. Only the damaged bushing needs to be replaced, which improves production efficiency. The auxiliary components installed on the bushing body can quickly fix and limit the bushing, effectively preventing the bushing from loosening and shifting during operation, and greatly reducing the downtime of the equipment.

[0013] (2) The mounting screws provided on the bushing body, auxiliary cover, bushing 2, and bushing 1 can enhance the overall stability of the bushing assembly, ensure that the components are tightly connected under high load conditions, and significantly improve the operating accuracy and reliability of the equipment. The oil inlet and sealing plug provided on bushing 1 and bushing body not only facilitate the injection of lubricating oil, but also effectively prevent the leakage of lubricating oil through the sealing plug, further optimizing the lubrication effect and sealing performance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a modular powder metallurgy bushing with replaceable bushings according to an embodiment of the present utility model. Figure 2 yes Figure 1 A schematic diagram of the side structure; Figure 3This is a schematic diagram of the installation assembly and auxiliary components of a modular powder metallurgy bushing with replaceable bushings according to an embodiment of the present utility model. Figure 4 This is a schematic diagram of the auxiliary component structure of a modular powder metallurgy bushing with replaceable bushings according to an embodiment of the present utility model.

[0016] In the picture: 1. Bushing body; 2. Mounting assembly; 201. Mounting groove; 202. Positioning rod; 203. Bushing one; 204. Connecting groove; 205. Bushing two; 3. Auxiliary assembly; 301. Auxiliary groove one; 302. Auxiliary cover; 303. Auxiliary groove two; 304. Elastic plunger; 4. Mounting screw; 5. Lubrication channel; 6. Oil inlet; 7. Sealing plug. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: like Figures 1-3 As shown, a modular powder metallurgy bushing with replaceable bushings according to an embodiment of the present utility model includes a bushing body 1. The bushing body 1 is a bushing made of powder metallurgy. The bushing body 1 has two fixing holes for screws that are used to install and fix the bushing. An installation component 2 is provided inside the bushing body 1. The installation component 2 includes an installation groove 201 inside the bushing body 1. The installation groove 201 has four positioning rods 202 inside for auxiliary positioning of the replaceable bushing. The number of positioning rods 202 can be adjusted according to the actual situation. One end of two positioning rods 202 is engaged with a bushing 203. The side of the bushing 203 has two connecting grooves 204 for connecting and positioning a bushing 205. The bushing 205 is connected inside the connecting grooves 204. One side of the bushing 205 is connected to the other two positioning rods 202. Two mounting screws 4 are connected to the bushing body 1 to improve stability. One end of the mounting screw 4 is connected to the auxiliary cover 302, bushing 205, and bushing 203 respectively. The bushing 205 and bushing 203 have lubrication channels 5 inside. The bushing 203 and the bushing body 1 have oil filling ports 6 for adding and replenishing lubricating oil. The oil filling port 6 is connected to a sealing plug 7 for sealing the oil filling port 6. The sealing plug 7 has a cross groove or other groove structure (not shown in the figure) on one side for removing the sealing plug 7.

[0019] Example 2: like Figures 1-4 As shown, a modular powder metallurgy bushing with replaceable bushings according to an embodiment of the present utility model has an auxiliary component 3 provided at one end of the bushing body 1. The auxiliary component 3 has an auxiliary groove 301 at one end of the bushing body 1. An auxiliary cover 302 is provided on the auxiliary groove 301 and the bushing body 1. An auxiliary groove 303 is provided at one end of the bushing 205 and the bushing 203. The interior of the auxiliary groove 303 is connected to the auxiliary cover 302. The auxiliary cover 302 has four auxiliary holes. An elastic plunger 304 is provided inside the auxiliary holes for quick fixing and limiting of the auxiliary cover 302. One end of the elastic plunger 304 is engaged with the interior of the auxiliary groove 301. The elastic plunger 304, auxiliary cover 302, sealing plug 7, lubrication channel 5, mounting screw 4, bushing 205, bushing 1, and bushing body 1 are existing technologies and will not be described in detail. The specific model and specifications need to be selected and determined according to the actual specifications of the device.

[0020] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0021] In summary, with the help of the above-mentioned technical solution of this utility model, the bushing body 1 serves as the basic carrier of the overall structure during installation, and bears the external installation force and internal friction load during equipment operation. The installation groove 201 opened inside the bushing body 1 provides a precise assembly space for the bushing assembly and forms a cavity for the embedded system. Multiple positioning rods 202 are arranged in the installation groove 201. These positioning rods 202 are distributed circumferentially and are used to limit and guide the bushing 1 203 and bushing 2 205 to ensure that the bushings remain stable under high speed or vibration conditions. Bushing 1 203 is positioned at the ends of two positioning rods 202 by snap-fit, achieving initial installation positioning. The connecting groove 204 on the side of bushing 1 203 is used to insert bushing 205, so that the two form an interlocking structure in the circumferential direction. After bushing 205 is inserted into the connecting groove 204, its other side simultaneously contacts and clamps with the other two positioning rods 202. Under the cooperative constraint of positioning rods 202, bushing 1 203 and bushing 205 constitute a complete inner lining system, which jointly bears the friction and load during shaft rotation, achieving uniform wear distribution and stress dispersion. Meanwhile, the auxiliary groove 301 at the end of the bushing body 1 cooperates with the auxiliary cover 302. The end faces of the bushing 1 203 and the bushing 2 205 are both provided with the auxiliary groove 303. After the auxiliary cover 302 is inserted into the auxiliary groove 303, the end faces of the three are aligned and pressed together. The multiple auxiliary holes on the auxiliary cover 302 have built-in elastic plungers 304. When the auxiliary cover 302 is pushed into place, the elastic plungers 304 automatically pop out and lock into the corresponding recesses on the inner wall of the auxiliary groove 301, completing tool-free quick locking. When disassembling, simply press the elastic plungers 304 to release the locking, which facilitates quick replacement of the bushing. Multiple mounting screws 4 are provided on the bushing body 1. The mounting screws 4 pass through the auxiliary cover 302 and then pass through the bushing 205 and bushing 1 in sequence, and finally tighten them on the side of the bushing body 1. The mounting screws 4 press the auxiliary cover 302, bushing 205, bushing 1 and bushing body 1 into one piece, which effectively suppresses loosening or misalignment caused by vibration during operation and improves structural stability and service life. Both bushing 203 and bushing 205 have lubrication channels 5 on their inner walls. When the shaft rotates, the lubricating oil is guided to be evenly distributed along the friction surface, reducing the coefficient of friction and dissipating heat. The lubricating oil is injected through the oil inlet 6, which connects bushing 203 and bushing 1, ensuring that the lubricating medium can smoothly enter the internal channel. After the oil is injected, the sealing plug 7 is screwed into the oil inlet 6 to seal it, preventing leakage and contaminant intrusion. The end of the sealing plug 7 has a cross groove and other structures, which makes it easy to manually remove and add oil during regular maintenance. In addition, multiple fixing holes are provided on the outer circumference of the bushing 1, which are used to firmly install the entire bushing on the equipment base or housing with bolts, ensuring that the shaft position is accurate and without deviation during operation, and ensuring the smoothness of transmission.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular powder metallurgy bushing with replaceable bushings, comprising a bushing body (1), characterized in that, The bushing body (1) is provided with an installation component (2). The installation component (2) includes an installation groove (201) inside the bushing body (1). Multiple positioning rods (202) are provided inside the installation groove (201). One end of two positioning rods (202) is engaged with a bushing (203). Multiple connecting grooves (204) are provided on the side of the bushing (203). A bushing (205) is connected inside the connecting groove (204). One side of the bushing (205) is connected to two other positioning rods (202). An auxiliary component (3) is provided at one end of the bushing body (1).

2. The modular powder metallurgy bushing with replaceable bushings according to claim 1, characterized in that, The auxiliary component (3) has an auxiliary groove (301) at one end of the bushing body (1). An auxiliary cover (302) is provided on the auxiliary groove (301) and the bushing body (1). An auxiliary groove (303) is provided at one end of the bushing (205) and the bushing (203). The interior of the auxiliary groove (303) is connected to the auxiliary cover (302). The auxiliary cover (302) has multiple auxiliary holes. An elastic plunger (304) is provided inside the auxiliary holes. One end of the elastic plunger (304) is engaged with the interior of the auxiliary groove (301).

3. A modular powder metallurgy bushing with replaceable bushings according to claim 2, characterized in that, Multiple mounting screws (4) are connected to the bushing body (1). One end of the mounting screw (4) is connected to the auxiliary cover (302), bushing two (205), and bushing one (203) respectively.

4. A modular powder metallurgy bushing with replaceable bushings according to claim 3, characterized in that, Lubrication channels (5) are provided inside bushing 2 (205) and bushing 1 (203).

5. A modular powder metallurgy bushing with replaceable bushings according to claim 4, characterized in that, The bushing (203) and the bushing body (1) are provided with an oil inlet (6), and the inside of the oil inlet (6) is connected with a sealing plug (7).

6. A modular powder metallurgy bushing with replaceable bushings according to claim 5, characterized in that, Multiple fixing holes are provided on the bushing body (1).

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