Motor shaft core pressing device

Abstract

The utility model discloses a motor shaft core pressing device, which comprises a base, a mounting plate, a fixing seat, a mounting assembly, a bottom plate, a fixing assembly, a push plate and a hydraulic cylinder, the fixing assembly is arranged above the bottom plate, a worm is rotated to drive a latch to drive a turntable to rotate, so that a slide block starts to move along a guide groove formed in the turntable, and the slide block is driven to move along the guide groove. The guide block is driven to move along the limiting groove formed in the sleeve, so that the clamping block gets close to and clamps the rotating shaft, the rotating shaft is prevented from inclining, and the stability of the device is improved; the mounting assembly is arranged in the cavity, when the mounting plate is pushed into the cavity, the clamping block is gradually inserted between the two fixing balls, after the protruding part of the mounting plate is completely inserted into the cavity, the fixing balls are close to and tightly attached to the side wall of the clamping block under the counter-acting force of the springs, movement of the clamping block is limited, and fixing of the mounting plate is completed; and the fixing seat can be replaced at any time according to the size of the rotor.

Description

Technical Field

[0001] The utility model relates to the technical field of motor assembly, in particular to a motor shaft core pressing device. Background Art

[0002] The motor is a device that converts electrical energy into mechanical energy. It is mainly composed of a stator and a rotor. The rotating magnetic field is generated by an energized coil (i.e., a stator winding) and acts on the rotor to form a magneto-electrical power rotation torque. Therefore, when assembling the motor, it is often necessary to press the shaft into the rotor, and use the interference fit between the shaft core and the rotor to ensure their reliable connection. The motor core shaft assembly device described in announcement number CN213470199U has a housing carrier with a positioning hole matching the housing, a core shaft carrier with a positioning pit matching the core shaft, and an elastic support rod between the housing carrier and the core shaft carrier. The pressure head is pressed down to press the core shaft into the housing, thereby completing the assembly. The degree of automation is high, but the prior art still has the following defects:

[0003] 1. The existing technology has a poor fixing effect on the rotating shaft, and there is a risk of the shaft body tilting during the pressing process;

[0004] 2. Each base in the prior art cannot be disassembled, is not convenient for disassembly and replacement, and has certain limitations. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a motor shaft core pressing device.

[0006] In order to solve the above technical problems, the utility model provides a technical solution: a motor shaft core pressing device, comprising:

[0007] A base, wherein a groove is formed on one side of an upper end of the base;

[0008] A mounting plate, the mounting plate is in a convex shape and is connected to the upper end of the base by bolts;

[0009] A fixing seat, the outer bottom end of which is fixedly connected to the mounting plate;

[0010] Installation components, three of which are fixedly connected to the side walls of the groove;

[0011] A bottom plate, the bottom plate being slidably connected to the upper side of the base;

[0012] A fixing assembly, wherein the fixing assembly is fixedly connected to the upper side of the bottom plate, the fixing assembly comprises a fixing plate, a sleeve, a rotating disk, a worm, a latching tooth, a sliding block, a guide block, a limit block 1 and a clamping block, wherein the bottom end of the fixing plate is fixedly connected to the bottom plate, a cavity is opened inside the sleeve and the outer wall is fixedly connected to the fixing plate, a rotating disk is rotatably connected inside the sleeve, a worm is rotatably connected to the upper side of the sleeve passing through it, a plurality of latching teeth used in conjunction with the worm are fixedly connected to one side of the rotating disk, three sliding blocks are slidably connected to one side of the rotating disk, a guide block is rotatably connected to one side of the slider, both sides of the guide block are fixedly connected to a limit block 1, the guide block and the limit block 1 both pass through the sleeve and are slidably connected to it, and a clamping block is fixedly connected to one side of the guide block;

[0013] A push plate, the push plate is fixedly connected to the bottom plate;

[0014] A hydraulic cylinder, wherein the output end of the hydraulic cylinder is fixedly connected to the push plate, and the bottom end of the hydraulic cylinder is fixedly connected to the base.

[0015] As an improvement, the installation assembly includes:

[0016] A fixing block, two of which are fixedly connected to the inner wall of the cavity;

[0017] Telescopic rods, two of which are fixedly connected to the inner walls of the two fixed blocks respectively, and springs are sleeved on the telescopic rods;

[0018] Fixed balls, two of which are fixedly connected to opposite ends of the two telescopic rods;

[0019] A clamping block is fixedly connected to the bottom end of the mounting plate.

[0020] As an improvement, two clamping plates are arranged inside the fixing seat, and opposite ends of the two clamping plates are rotatably connected with screws penetrating the side wall of the fixing seat.

[0021] As an improvement, two limiting blocks 2 are fixedly connected to the bottom end of the base plate, and a sliding groove for cooperating with the limiting blocks 2 is provided on the upper side of the base.

[0022] As an improvement, rubber pads are provided on opposite sides of the two clamping plates.

[0023] As an improvement, one end of the three clamping blocks is provided with a protective pad.

[0024] The advantages of the utility model compared with the prior art are: 1. A fixed component is arranged above the bottom plate of the utility model. By rotating the worm, the latch gear can be driven to drive the turntable to rotate, so that the slider starts to move along the guide groove provided on the turntable, thereby driving the guide block to move along the limit groove provided on the sleeve under the action of the limit block 1, so that the clamping block approaches and clamps the rotating shaft, preventing the rotating shaft from tilting and improving the stability of the device.

[0025] 2. The utility model has a cavity on the base, and a mounting assembly is arranged inside the cavity. When the mounting plate is pushed into the cavity, the clamping block will gradually be inserted between the two fixed balls, generating thrust on the two fixed balls to shrink them toward the fixed block. After the raised portion of the mounting plate is completely inserted into the cavity, the fixed balls will approach and adhere to the side wall of the clamping block under the action of the spring, restricting the movement of the clamping block and completing the fixation of the mounting plate. The disassembly and assembly are convenient and quick, and the fixing seat can be replaced at any time according to the size of the rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0027] Figure 2 It is an exploded view of the utility model.

[0028] Figure 3 It is a top view of the utility model.

[0029] Figure 4 yes Figure 3 Cross-sectional view along the AA direction.

[0030] Figure 5 It is an exploded view of the fixing assembly of the utility model.

[0031] As shown in the figure:

[0032] 1. Base;

[0033] 2. Mounting plate;

[0034] 3. Fixed seat;

[0035] 4. Clamping plate;

[0036] 5. Screw;

[0037] 6. Installation assembly; 61. Fixing block; 62. Telescopic rod; 63. Fixing ball; 64. Block;

[0038] 7. Bottom plate; 71. Limit block 2;

[0039] 8. Fixing assembly; 81. Fixing plate; 82. Sleeve; 83. Turntable; 84. Worm; 85. Gear; 86. Slider; 87. Guide block; 88. Limit block 1; 89. Clamping block;

[0040] 9. Push the board;

[0041] 10. Hydraulic cylinder. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0044] Embodiment 1:

[0045] like Figures 1 to 5 As shown, this embodiment proposes a motor shaft core pressing device, including a base 1, a mounting plate 2, a fixing seat 3, a mounting assembly 6, a bottom plate 7, a fixing assembly 8, a push plate 9 and a hydraulic cylinder 10. The push plate 9 is fixedly connected to the bottom plate 7, the bottom end of the hydraulic cylinder 10 is fixedly connected to the base 1, and the output end of the hydraulic cylinder 10 is fixedly connected to the push plate 9, so that the hydraulic cylinder 10 can drive the bottom plate 7 to move by pushing the push plate 9.

[0046] A groove is provided on one side of the upper end of the base 1, the mounting plate 2 is in an inverted convex shape and is connected to the upper end of the base 1 by bolts, the outer bottom end of the fixing seat 3 is fixedly connected to the mounting plate 2, and handles are fixedly connected to the front and rear sides of the upper end of the mounting plate 2 to facilitate users to lift it.

[0047] The fixing assembly 8 is fixedly connected to the upper side of the bottom plate 7. The fixing assembly 8 includes a fixing plate 81, a sleeve 82, a rotating disk 83, a worm 84, a latching tooth 85, a slider 86, a guide block 87, a limit block 88 and a clamping block 89. The bottom end of the fixing plate 81 is fixedly connected to the bottom plate 7. A cavity is provided inside the sleeve 82 and the outer wall is fixedly connected to the fixing plate 81. The inside of the sleeve 82 is rotatably connected with the rotating disk 83. The upper side of the sleeve 82 is rotatably connected with a worm 84 running through it. One side of the rotating disk 83 is fixedly connected with a plurality of latching teeth 85 used in conjunction with the worm 84. One side of the rotating disk 83 is slidably connected with three sliders 86. One side of the slider 86 is rotatably connected with a guide block 87. Both sides of the guide block 87 are fixedly connected with a limit block 88. The guide block 87 and the limit block 88 both pass through the sleeve 82 and are slidably connected thereto. A clamping block 89 is fixedly connected to one side of the guide block 87. One end of each of the three clamping blocks 89 is provided with a protective pad to prevent the rotating shaft from being clamped. After the rotating shaft is inserted into the sleeve 82 and abuts against the push plate 9, the worm 84 can be rotated to drive the latching tooth 85 to move, so that the turntable 83 starts to rotate inside the sleeve 82. At this time, the slider 86 will be driven by the turntable 83 to slide along the guide groove opened on the turntable 83, and the guide block 87 rotatably connected thereto will also begin to slide along the limit groove opened on the side wall of the sleeve 82 under the restriction of the limit block 88, so that the clamping block 89 is close to and close to the rotating shaft, fixing it to prevent it from tilting.

[0048] The three mounting components 6 are fixedly connected to the side walls of the groove. The mounting components 6 include a fixing block 61, a telescopic rod 62, a fixing ball 63 and a clamping block 64. The two fixing blocks 61 are fixedly connected to the inner wall of the cavity. The two telescopic rods 62 are fixedly connected to the inner walls of the two fixing blocks 61 respectively. The two fixing balls 63 are fixedly connected to the opposite ends of the two telescopic rods 62. The clamping block 64 is fixedly connected to the bottom end of the mounting plate 2. When the mounting plate 2 is inserted into or pulled out of the cavity, the clamping block 64 will generate a thrust on the fixing ball 63. Under the action of the spring, the telescopic rod 62 will push the fixing ball 63 to move, so that the two fixing balls 63

[0049] Keeping the approaching trend facilitates the restriction of the block 64 and realizes the rapid disassembly and assembly of the mounting plate 2 .

[0050] Embodiment 2:

[0051] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0052] Two clamping plates 4 are arranged inside the fixing seat 3, and the opposite ends of the two clamping plates 4 are rotatably connected with screws 5 which penetrate the side walls of the fixing seat 3, and the screws 5 are connected to the fixing seat 3 by threads. Rubber pads are arranged on the opposite sides of the two clamping plates 4, and the movement of the clamping plates 4 can be controlled by rotating the screws 5 to make them approach or move away from the rotor, thereby fixing or releasing the rotor.

[0053] Embodiment 3:

[0054] The solution in Example 2 is further introduced below in combination with a specific working method, as described below:

[0055] The bottom plate 7 is slidably connected to the upper side of the base 1, and two limit blocks 71 are fixedly connected to the bottom end of the bottom plate 7. A slide groove is provided on the upper side of the base 1 to cooperate with the limit blocks 71. When the hydraulic cylinder 10 pushes the push plate 9 to move, the bottom plate 7 will drive the limit blocks 71 to move along the slide groove to prevent the bottom plate 7 from detaching from the base 1 and affecting the subsequent pressing process.

[0056] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0057] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A motor shaft core pressing device, characterized in that: include: A base (1), wherein a groove is formed on one side of an upper end of the base (1); A mounting plate (2), the mounting plate (2) being in a convex shape and being connected to the upper end of the base (1) by bolts; A fixing seat (3), wherein the outer bottom end of the fixing seat (3) is fixedly connected to the mounting plate (2); A mounting assembly (6), wherein three of the mounting assemblies (6) are fixedly connected to the side walls of the groove; A bottom plate (7), the bottom plate (7) being slidably connected to the upper side of the base (1); A fixing assembly (8), wherein the fixing assembly (8) is fixedly connected to the upper side of the bottom plate (7), and the fixing assembly (8) comprises a fixing plate (81), a sleeve (82), a rotating disk (83), a worm (84), a latching tooth (85), a slider (86), a guide block (87), a limit block (88) and a clamping block (89). The bottom end of the fixing plate (81) is fixedly connected to the bottom plate (7), a cavity is provided inside the sleeve (82) and the outer wall is fixedly connected to the fixing plate (81), a rotating disk (83) is rotatably connected inside the sleeve (82), and the sleeve (8 2) A worm (84) is rotatably connected to the upper side of the interior and passes through it; a plurality of latching teeth (85) used in conjunction with the worm (84) are fixedly connected to one side of the rotating disk (83); three sliders (86) are slidably connected to one side of the rotating disk (83); a guide block (87) is rotatably connected to one side of the slider (86); both sides of the guide block (87) are fixedly connected to a limiting block (88); the guide block (87) and the limiting block (88) both pass through the sleeve (82) and are slidably connected thereto; and a clamping block (89) is fixedly connected to one side of the guide block (87); A push plate (9), wherein the push plate (9) is fixedly connected to the bottom plate (7); A hydraulic cylinder (10), wherein the output end of the hydraulic cylinder (10) is fixedly connected to the push plate (9), and the bottom end of the hydraulic cylinder (10) is fixedly connected to the base (1).

2. The motor shaft core pressing device according to claim 1, characterized in that: The installation component (6) comprises: A fixing block (61), wherein two fixing blocks (61) are fixedly connected to the inner wall of the cavity; Telescopic rods (62), wherein the two telescopic rods (62) are respectively fixedly connected to the inner walls of the two fixed blocks (61), and a spring is sleeved on the telescopic rods (62); A fixing ball (63), wherein two fixing balls (63) are fixedly connected to opposite ends of the two telescopic rods (62); A clamping block (64), wherein the clamping block (64) is fixedly connected to the bottom end of the mounting plate (2).

3. The motor shaft core pressing device according to claim 1, characterized in that: Two clamping plates (4) are arranged inside the fixing seat (3), and opposite ends of the two clamping plates (4) are rotatably connected to screw rods (5) that penetrate the side wall of the fixing seat (3).

4. The motor shaft core pressing device according to claim 1, characterized in that: The bottom end of the bottom plate (7) is fixedly connected to two second limiting blocks (71), and the upper side of the base (1) is provided with a sliding groove used in conjunction with the second limiting blocks (71).

5. The motor shaft core pressing device according to claim 3, characterized in that: Rubber pads are arranged on opposite sides of the two clamping plates (4).

6. The motor shaft core pressing device according to claim 1, characterized in that: One end of each of the three clamping blocks (89) is provided with a protection pad.

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