Motor rotor bearing pressing device

Abstract

The utility model belongs to the technical field of motor rotor machining devices, and particularly relates to a motor rotor bearing pressing device which comprises a machining table, a rotor placing structure and a bearing press-fitting structure, the rotor placing structure is installed on the upper end face of the machining table, and the bearing press-fitting structure is arranged above the rotor placing structure. The rotor placement structure comprises a first fixing plate, a second fixing plate, four guide columns, an upper reset spring and a lower reset spring, the guide columns are fixedly connected to the upper surface of the machining table, the second fixing plate is slidably connected to the outer walls of the four guide columns, the first fixing plate is slidably connected to the outer walls of the guide columns, and the lower fixing plate is slidably connected to the outer walls of the lower reset springs. And the first fixing plate is positioned above the second fixing plate. According to the utility model, the corresponding press-fitting processing structure can be quickly adjusted according to processing requirements, and the applicability is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of motor rotor processing equipment, specifically a motor rotor bearing pressing device. Background Technology

[0002] In the manufacturing process of motors, specialized motor rotor bearing press-fitting equipment is usually used in order to quickly press the bearings to be installed onto the shaft of the motor rotor.

[0003] However, existing motor rotor bearing press-fitting equipment typically places the rotor horizontally on the working surface and presses the bearings at both ends of the rotor onto the rotor using press-fitting devices at both ends of the rotor. Although this method allows for rapid press-fitting of the rotor, the horizontal placement of the rotor means that the equipment can only perform bearing press-fitting operations on motor rotors with the same outer diameter. When motor rotors with different outer diameters need to be press-fitted, the current horizontal press-fitting equipment cannot make corresponding press-fitting height adjustments due to the change in the height of the rotor shaft. Summary of the Invention

[0004] The purpose of this invention is to provide a motor rotor pressing bearing device, which can replace the corresponding mounting seat according to the pressing requirements of different motor rotors.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a motor rotor pressing bearing device, including a processing table, a rotor placement structure and a bearing pressing structure, wherein the rotor placement structure is installed on the upper end face of the processing table and the bearing pressing structure is disposed above the rotor placement structure;

[0006] The rotor placement structure includes a first fixed plate, a second fixed plate, guide columns, an upper return spring, and a lower return spring. The guide columns are fixedly connected to the upper surface of the processing table, and four guide columns are provided. The second fixed plate is slidably connected to the outer wall of the four guide columns. The first fixed plate is slidably connected to the outer wall of the guide columns and is located above the second fixed plate. The lower return springs are sleeved on the outer wall of the guide columns, and the top ends of the four lower return springs are fixedly connected to the lower end face of the second fixed plate. The upper return springs are sleeved on the outer wall of the guide columns, and the upper end faces of the four upper return springs are fixedly connected to the lower end face of the first fixed plate. An upper bearing placement seat is installed inside the first fixed plate, and a first placement groove is opened inside the upper bearing placement seat. A lower bearing placement seat is installed inside the processing table, and a second through hole is opened inside the lower bearing placement seat. The first placement groove corresponds to the lower bearing placement seat.

[0007] The bearing press-fit structure includes an assembly plate, a bearing pressure seat, and a pressure sensor. The bearing pressure seat is located above the first fixed plate, and the pressure sensor is installed inside the bearing pressure seat. The assembly plate is fixedly connected to both sides of the outer wall of the bearing pressure seat, and the pressure sensor corresponds to the first placement groove.

[0008] Optionally, a rotor placement seat is fixedly connected inside the second fixing plate. A second placement groove is formed inside the rotor placement seat by fixing bolts. A first square groove is formed inside the rotor placement seat, and the first square groove extends into the interior of the second placement groove.

[0009] Optionally, the first placement groove has a first through hole inside, the upper bearing placement seat has a second square groove inside, the second square groove passes through the first placement groove to the inside of the first through hole, the first through hole and the second through hole correspond to each other, and a handle is fixedly connected to the upper end face of the lower bearing placement seat.

[0010] Optionally, a support column is fixedly connected to the upper surface of the processing table, and four support columns are provided, with mounting plates fixedly connected to the upper end faces of the four support columns.

[0011] Optionally, a hydraulic cylinder is installed on the upper surface of the mounting plate. Two hydraulic cylinders are provided, and each of the telescopic ends of the two hydraulic cylinders is fixedly connected to a pressure plate. The mounting plate is slidably connected to the outer wall of the pressure plate. An assembly groove and a sliding groove are provided inside the pressure plate. The assembly groove and the sliding groove are connected. A hexagonal nut is movably connected inside the sliding groove. A hexagonal bolt is threaded inside the mounting plate. The hexagonal bolt is also threadedly connected to the hexagonal nut and movably connected to the assembly groove.

[0012] Optionally, the upper end face of the processing table is fixedly connected to a limiting post, and four limiting posts are provided. All four limiting posts are slidably connected inside the pressure plate, and the top end of the limiting post is fixedly connected to the lower surface of the mounting plate.

[0013] Optionally, a control panel is mounted on the upper surface of the processing table, the pressure sensor is electrically connected to the control panel, and a support leg is fixedly connected to the lower surface of the processing table.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention changes the press-fitting method to vertical press-fitting. Furthermore, by making the upper bearing holder, lower bearing holder, and rotor holder detachable, the rotor holder can be replaced according to the press-fitting requirements to accommodate the motor rotor for the corresponding press-fitting needs. Simultaneously, the upper and lower bearing holders can be interchanged to accommodate the bearings for the corresponding press-fitting requirements. This invention allows for rapid adjustment of the press-fitting structure according to processing needs, improving its applicability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial structural diagram from a first-view perspective of the present invention;

[0019] Figure 3 This is a partial structural diagram of the present invention from a second perspective;

[0020] Figure 4 This is a bottom view schematic diagram of the bearing press-fit structure of this utility model;

[0021] Figure 5 This is a partial structural diagram of the present invention from a third-view perspective;

[0022] Figure 6 This is a schematic diagram of the structure of the bearing mounting base and rotor mounting base of this utility model.

[0023] In the diagram: 1. Machining table; 2. Control panel; 3. Support column; 4. Mounting plate; 5. Hydraulic cylinder; 6. Rotor placement structure; 601. First fixing plate; 602. First placement slot; 603. First through hole; 604. Second fixing plate; 605. Guide column; 606. Upper return spring; 607. Second placement slot; 608. First square slot; 609. Lower return spring; 610. Lower bearing placement seat; 611. Second through hole; 612. Handle; 613. Upper bearing placement seat; 614. Rotor placement seat; 615. Second square slot; 7. Support foot; 8. Limiting column; 9. Bearing press-fit structure; 91. Pressure plate; 92. Assembly slot; 93. Slide groove; 94. Bearing pressure seat; 95. Pressure sensor; 96. Hex bolt; 97. Hex nut; 98. Assembly plate. Detailed Implementation

[0024] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The present invention will now describe a motor rotor bearing pressure device according to an embodiment of the present invention. Please refer to [link / reference]. Figures 1 to 6 A motor rotor pressing bearing device includes a processing table 1, a rotor placement structure 6 and a bearing pressing structure 9. The rotor placement structure 6 is installed on the upper end face of the processing table 1, and the bearing pressing structure 9 is disposed above the rotor placement structure 6.

[0029] The rotor placement structure 6 includes a first fixing plate 601, a second fixing plate 604, guide posts 605, an upper return spring 606, and a lower return spring 609. The guide posts 605 are fixedly connected to the upper surface of the processing table 1. Four guide posts 605 are provided. The second fixing plate 604 is slidably connected to the outer wall of the four guide posts 605. The first fixing plate 601 is slidably connected to the outer wall of the guide posts 605, and is located above the second fixing plate 604. The lower return springs 609 are movably connected to the outer wall of the four guide posts 605. The tops of the four lower return springs 609... The upper return spring 606 is sleeved on the outer wall of the guide post 605. The upper end face of the four upper return springs 606 is fixedly connected to the lower end face of the first fixed plate 601. The upper bearing placement seat 613 is fixedly connected inside the first fixed plate 601. The upper bearing placement seat 613 has a first placement groove 602 opened inside by fixing bolts. The lower bearing placement seat 610 is installed inside the processing table 1. The lower bearing placement seat 610 has a second through hole 611 opened inside. The first placement groove 602 corresponds to the lower bearing placement seat 610.

[0030] The bearing press-fit structure 9 includes an assembly plate 98, a bearing press seat 94, and a pressure sensor 95. The bearing press seat 94 is positioned above the first fixed plate 601, and the pressure sensor 95 is installed inside the bearing press seat 94. The assembly plate 98 is fixedly connected to both sides of the outer wall of the bearing press seat 94, and the pressure sensor 95 corresponds to the first placement groove 602. By setting the connection between the upper bearing placement seat 613 and the first fixed plate 601 as a detachable bolt connection, the connection between the rotor placement seat 614 and the second fixed plate 604 as a detachable bolt connection, and the connection between the lower bearing placement seat 610 and the processing table 1 as a detachable bolt connection, this invention improves its applicability by replacing the corresponding models of the upper bearing placement seat 613, rotor placement seat 614, and lower bearing placement seat 610 according to processing requirements.

[0031] In this embodiment of the utility model, please refer to Figures 1 to 6 The second fixing plate 604 houses a rotor placement seat 614. The rotor placement seat 614 has a second placement groove 607 and a first square groove 608 extending into the second placement groove 607. The rotor placement seat 614 and the second fixing plate 604 are connected by fixing bolts, facilitating the assembly and disassembly of the rotor placement seat 614 by removing and installing the fixing bolts. The second placement groove 607 facilitates the placement and fixing of the motor rotor. The first square groove 608 allows the rotor shaft to pass through when the motor rotor is placed.

[0032] In this embodiment of the utility model, please refer to Figures 1 to 6The first placement groove 602 has a first through hole 603 inside, and the upper bearing placement seat 613 has a second square groove 615 inside. The second square groove 615 extends through the first placement groove 602 to the interior of the first through hole 603. The first through hole 603 corresponds to the second through hole 611. A handle 612 is fixedly connected to the upper end face of the lower bearing placement seat 610. The first through hole 603 in the upper bearing placement seat 613 facilitates the passage of the rotor shaft during press-fitting; the second square groove 615 facilitates the passage of the rotor shaft after the motor rotor has completed the press-fitting operation; the correspondence between the second through hole 611 and the first through hole 603 ensures that the first through hole 603 and the second through hole 611 are located on the same center line during press-fitting, facilitating the passage of the upper and lower ends of the rotor shaft; when disassembling the lower bearing placement seat 610, the handle 612 facilitates the removal of the lower bearing placement seat 610.

[0033] In this embodiment of the utility model, please refer to Figures 1 to 6 The upper surface of the processing table 1 is fixedly connected to four support columns 3, and the upper end faces of the four support columns 3 are fixedly connected to mounting plates 4. The four support columns 3 are located at the four corners of the lower end face of the mounting plates 4 to support the mounting plates 4.

[0034] In this embodiment of the utility model, please refer to Figures 1 to 6 Hydraulic cylinders 5 are installed on the upper surface of mounting plate 4. Two hydraulic cylinders 5 are provided. The extension and retraction ends of the two hydraulic cylinders 5 are fixedly connected to pressure plates 91. Assembly plates 98 are slidably connected to the outer wall of pressure plates 91. An assembly groove 92 and a sliding groove 93 are provided inside the pressure plates 91. The assembly groove 92 and the sliding groove 93 are connected through each other. Hexagonal nuts 97 are movably connected inside the sliding grooves 93. Hexagonal bolts 96 are threadedly connected inside the assembly plate 98. Hexagonal bolts 96 are also threadedly connected to hexagonal nuts 97. Hexagonal bolts 96 are also movably connected to the assembly grooves 92. When the hydraulic cylinder 5 is working, it can drive the pressure plate 91 at the telescopic end to adjust the height up and down; the sliding connection between the assembly plate 98 and the pressure plate 91 allows the bearing pressure seat 94 to be slidably installed between a pair of pressure plates 91 through the assembly plate 98, and the assembly plate 98 and the bearing pressure seat 94 are installed and fixed on the pressure plate 91 through the threaded connection between the hexagonal bolt 96 on the assembly plate 98 and the hexagonal nut 97 in the slide groove 93 of the pressure plate 91.

[0035] In this embodiment of the utility model, please refer to Figures 1 to 6The upper surface of the processing table 1 is fixedly connected to four limiting posts 8, which are slidably connected inside the pressure plate 91. The top of each limiting post 8 is fixedly connected to the lower surface of the mounting plate 4. The sliding connection between the limiting posts 8 and the pressure plate 91 allows the limiting posts 8 to limit the up and down movement of the pressure plate 91 during the pressing action, preventing the pressure plate 91 from shaking when pressing down and rising.

[0036] In this embodiment of the utility model, please refer to Figures 1 to 6 A control panel 2 is mounted on the upper surface of the processing table 1. The pressure sensor 95 is electrically connected to the control panel 2, and a support foot 7 is fixedly connected to the lower surface of the processing table 1. The electrical connection between the control panel 2 and the pressure sensor 95 allows the pressure sensor 95 to feed back the pressure parameters it receives in real time to the control panel 2. The support foot 7 provides support for this invention.

[0037] Working principle: When using this utility model, the motor rotor to be pressed is placed into the second placement groove 607 along the first square groove 608, then the upper bearing is placed into the first placement groove 602, and the lower bearing is placed into the lower bearing placement seat 610. Then, the hydraulic cylinder 5 is controlled by the control panel 2 to work, driving the pressure plate 91 to descend, thereby driving the assembly plate 98 and the bearing pressure seat 94 to perform the pressing action.

[0038] During the pressing process, the bearing holder 94 first contacts the upper bearing on the upper bearing mounting seat 613. During the continuous pressing process, the bearing holder 94 presses down on the upper bearing mounting seat 613. At this time, the pressure is not enough to press the upper bearing. The pressure will compress the upper return spring 606 and the lower return spring 609, causing the height of the motor rotor to drop until the lower end of the motor rotor shaft contacts the lower bearing and the upper end of the shaft contacts the upper bearing. At this time, the hydraulic cylinder 5 continues to output. When the actual pressure is greater than the pressure required for bearing pressing, the bearings at the upper and lower ends of the motor rotor shaft will be pressed simultaneously. Then, the hydraulic cylinder 5 is slowly retracted by the control panel 2 to reset the bearing holder 94, thereby completing the current pressing operation of the motor rotor. The pressed motor rotor can then be taken out along the first square groove 608 and the second square groove 615.

[0039] 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 and improvements 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. An electric machine rotor press bearing device, comprising a processing table (1), a rotor placing structure (6) and a bearing press fitting structure (9), characterized in that: The rotor placement structure (6) is installed on the upper end face of the processing table (1), and the bearing press-fitting structure (9) is set above the rotor placement structure (6); The rotor placement structure (6) includes a first fixing plate (601), a second fixing plate (604), guide posts (605), an upper return spring (606), and a lower return spring (609). The guide posts (605) are fixedly connected to the upper surface of the processing table (1), and four guide posts (605) are provided. The second fixing plate (604) is slidably connected to the outer wall of the four guide posts (605), and the first fixing plate (601) is slidably connected to the outer wall of the guide posts (605), and the first fixing plate (601) is located above the second fixing plate (604). The lower return spring (609) is sleeved on the outer wall of the guide posts (605). The four lower return springs (606, 607, 608, 609 ... The top end of the guide post (605) and the bottom end face of the second fixed plate (604) are fixedly connected. The upper return spring (606) is sleeved on the outer wall of the guide post (605). The upper end face of the four upper return springs (606) and the lower end face of the first fixed plate (601) are fixedly connected. An upper bearing placement seat (613) is installed inside the first fixed plate (601). A first placement groove (602) is opened inside the upper bearing placement seat (613). A lower bearing placement seat (610) is installed inside the processing table (1). A second through hole (611) is opened inside the lower bearing placement seat (610). The first placement groove (602) corresponds to the lower bearing placement seat (610). The bearing press-fit structure (9) includes an assembly plate (98), a bearing press base (94), and a pressure sensor (95). The bearing press base (94) is located above the first fixing plate (601), and the pressure sensor (95) is installed inside the bearing press base (94). The assembly plate (98) is fixedly connected to both sides of the outer wall of the bearing press base (94), and the pressure sensor (95) corresponds to the first placement groove (602).

2. A motor rotor pressurized bearing assembly as claimed in claim 1, wherein: The rotor placement seat (614) is installed inside the second fixing plate (604). The rotor placement seat (614) has a second placement groove (607) inside and a first square groove (608) inside, which extends into the interior of the second placement groove (607).

3. A motor rotor pressurized bearing assembly as claimed in claim 1, wherein: The first placement groove (602) has a first through hole (603) inside, and the upper bearing placement seat (613) has a second square groove (615) inside. The second square groove (615) passes through the first placement groove (602) to the inside of the first through hole (603). The first through hole (603) corresponds to the second through hole (611). The upper end face of the lower bearing placement seat (610) is fixedly connected to a handle (612).

4. A motor rotor pressurized bearing assembly as claimed in claim 1, wherein: The upper surface of the processing table (1) is fixedly connected to a support column (3), and four support columns (3) are provided. The upper end face of the four support columns (3) is fixedly connected to an mounting plate (4).

5. A motor rotor pressurised bearing arrangement as claimed in claim 4, characterised in that: Hydraulic cylinders (5) are installed on the upper end face of the mounting plate (4). Two hydraulic cylinders (5) are provided. The telescopic ends of the two hydraulic cylinders (5) are fixedly connected to pressure plates (91). The assembly plate (98) is slidably connected to the outer wall of the pressure plate (91). An assembly groove (92) is provided inside the pressure plate (91). A sliding groove (93) is provided inside the pressure plate (91). The assembly groove (92) and the sliding groove (93) are connected. A hexagonal nut (97) is movably connected inside the sliding groove (93). A hexagonal bolt (96) is threadedly connected inside the assembly plate (98). The hexagonal bolt (96) is also threadedly connected to the hexagonal nut (97). The hexagonal bolt (96) is also movably connected to the assembly groove (92).

6. The motor rotor bearing pressing device as described in claim 5, characterized in that: The upper end face of the processing table (1) is fixedly connected to a limiting post (8). There are four limiting posts (8), and all four limiting posts (8) are slidably connected inside the pressure plate (91). The top end of the limiting post (8) is fixedly connected to the lower surface of the mounting plate (4).

7. A motor rotor pressurized bearing assembly as in claim 1 wherein: The upper surface of the processing table (1) is equipped with a control panel (2), the pressure sensor (95) and the control panel (2) are electrically connected, and the lower surface of the processing table (1) is fixedly connected with a support foot (7).

Images