Shaft type linear motor

Abstract

The utility model provides a shaft type linear motor. The shaft-type linear motor includes: a housing; the two limiting rings are installed at the positions, close to the two ends, of the interior of the shell correspondingly, two bearings are installed at the position, close to the middle, of the inner surface of the shell, rotating rings are arranged on the inner surfaces of the two bearings, sliding blocks are installed on the inner surfaces of the rotating rings, and reciprocating lead screws are arranged on the inner surfaces of the rotating rings; the two ends of the reciprocating lead screw are fixedly connected with movable shafts correspondingly, and the outer surfaces of the movable shafts are fixedly connected with limiting strips correspondingly. And the two limiting rings are installed at the two ends of the shell through installation buckles correspondingly, and a plurality of clamping grooves are formed in the inner surfaces of the limiting rings. According to the shaft type linear motor provided by the utility model, the rotating ring does not need to frequently switch positive and negative rotation through the design, and the rotating ring is enabled to rotate towards the same direction by utilizing the motion principle of the reciprocating screw rod, so that the operation stability of the shaft type linear motor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft linear motors, and particularly relates to a shaft linear motor. Background Technique

[0002] A linear motor is a transmission device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion mechanism. It can be regarded as a rotary motor cut radially and unfolded into a plane. A linear motor is also called a linear motor, a linear motor, a linear motor, and a push rod motor. The most commonly used types of linear motors are flat type, U-groove type, and tubular type.

[0003] The shaft linear motor mainly consists of a stator and a slider. Its working principle is based on Faraday's law of electromagnetic induction. At the same time, the shaft linear motor may also include a displacement sensor and a temperature sensor for detecting the temperature and displacement of the coil to ensure the stable operation and safe use of the motor. These components work together to enable the shaft linear motor to directly convert electrical energy into linear motion mechanical energy and is widely used in various occasions that require precise linear motion control.

[0004] In a general shaft linear motor, the slider on the rotating ring generally drives the threaded rod to rotate in a forward and reverse manner, so that the shaft of the shaft linear motor makes a reciprocating motion. In this process, it is necessary for the shaft linear motor to frequently adjust the rotation direction of the rotating ring, which is not conducive to the stability of the operation of the shaft linear motor.

[0005] Therefore, it is necessary to provide a shaft linear motor to solve the above technical problems. Content of the Utility Model

[0006] The utility model provides a shaft linear motor, which solves the problem that the reciprocating motion of the shaft driven by the forward and reverse rotation of the slider on the inner surface of the rotating ring affects the operation stability of the shaft linear motor during the forward and reverse rotation switching process.

[0007] To solve the above technical problems, the shaft linear motor provided by the utility model includes: a housing;

[0008] Two limiting rings, the two limiting rings are respectively installed at positions close to both ends inside the housing. Two bearings are installed at positions close to the middle on the inner surface of the housing. A rotating ring is arranged on the inner surfaces of the two bearings. A slider is installed on the inner surface of the rotating ring. A reciprocating screw rod is arranged on the inner surface of the rotating ring. Both ends of the reciprocating screw rod are fixedly connected with movable shafts, and limiting strips are fixedly connected to the outer surfaces of the movable shafts;

[0009] Two limiting rings, and the two limiting rings are respectively installed at both ends of the housing through installation buckles. A plurality of card slots are provided on the inner surfaces of the limiting rings, and a plurality of heat dissipation fins are fixedly connected to both the front and back surfaces of the housing;

[0010] The slider is inserted into the reciprocating lead screw groove. By rotating the rotating ring to cooperate with the limiting ring and the limiting strip, the reciprocating lead screw can be driven to perform reciprocating motion. The length of the limiting strip is determined according to requirements, and the movable shaft can perform reciprocating motion without rotation.

[0011] Preferably, an installation base frame is installed at the bottom of the housing. The installation base frame includes a bottom plate, and installation holes are provided at positions close to the four corners on the top of the bottom plate.

[0012] Preferably, four buffer bolts are fixedly connected to the top of the bottom plate, and a support plate is installed on the top of the buffer bolts. The support plate is installed at the bottom of the housing through bolts;

[0013] Threaded holes for threaded connection with bolts are provided at the bottom of the housing. The buffer bolts can play a role in shock absorption, and the buffer bolts can be made of rubber.

[0014] Preferably, a placement frame is installed at a position close to one side of the top of the housing, and a lid is provided on the top of the placement frame;

[0015] The lid is installed inside the placement frame through bolts.

[0016] Preferably, four installation bolts are installed on the top of the housing, and a heat dissipation frame is fixedly connected to the top ends of the installation bolts;

[0017] A through opening is provided at the top of the heat dissipation frame.

[0018] Preferably, a rotating frame is installed inside the heat dissipation frame, and a heat dissipation fan is installed at the bottom of the rotating frame;

[0019] The heat dissipation fan increases the air flow rate to assist the heat dissipation fins in heat dissipation.

[0020] Compared with the related art, the shaft-type linear motor provided by the present utility model has the following beneficial effects:

[0021] The present utility model provides an axial linear motor. In order to increase the stability of the output shaft of the axial linear motor during movement, a rotating ring with a slider on its inner surface is installed inside the housing through two bearings. Then, two limiting rings are used to increase the stability of the rotating ring and the stator on the inner surface of the housing during operation. Inside the rotating ring, a reciprocating screw rod with movable shafts at both ends is installed. By rotating the rotating ring in the same direction, the reciprocating screw rod can be driven to move reciprocally inside the housing. Through this design, it is not necessary for the rotating ring to frequently switch between forward and reverse rotations. Just let the rotating ring rotate in the same direction using the movement principle of the reciprocating screw rod, which increases the operating stability of the axial linear motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a schematic structural diagram of a preferred embodiment of the axial linear motor provided by the present utility model;

[0023] Figure 2 FIG. is a schematic structural diagram of the reciprocating screw rod provided by the present utility model;

[0024] Figure 3 FIG. is a schematic structural diagram of the slider provided by the present utility model;

[0025] Figure 4 Provided by the present utility model Figure 2 An enlarged view of the position A shown;

[0026] Figure 5 Provided by the present utility model Figure 1 An enlarged view of the position B shown.

[0027] Reference numerals in the figures: 1, mounting chassis; 101, base plate; 102, buffer bolt; 103, support plate; 104, bolt; 105, mounting hole; 2, mounting buckle; 3, limiting ring; 4, movable shaft; 5, limiting strip; 6, housing; 7, placement frame; ⑧, lid; 9, heat sink; 10, reciprocating screw rod; 11, mounting bolt; 12, heat dissipation frame; 13, card slot; 14, limiting ring; 15, bearing; 16, slider; 17, rotating ring; 18, rotating frame; 19, heat dissipation fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , wherein, Figure 1 FIG. is a schematic structural diagram of a preferred embodiment of the axial linear motor provided by the present utility model; Figure 2 FIG. is a schematic structural diagram of the reciprocating screw rod provided by the present utility model; Figure 3Schematic diagram of the structure of the slider provided by the present utility model; Figure 4 Provided by the present utility model Figure 2 Enlarged view of the position A shown; Figure 5 Provided by the present utility model Figure 1 Enlarged view of the position B shown. The shaft type linear motor includes: a housing 6;

[0030] Two limiting rings 14, the two limiting rings 14 are respectively installed at positions close to both ends inside the housing 6, two bearings 15 are installed at a position close to the middle of the inner surface of the housing 6, a rotating ring 17 is arranged on the inner surface of the two bearings 15, a slider 16 is installed on the inner surface of the rotating ring 17, a reciprocating lead screw 10 is arranged on the inner surface of the rotating ring 17, both ends of the reciprocating lead screw 10 are fixedly connected with a movable shaft 4, and limiting strips 5 are fixedly connected to the outer surfaces of the movable shafts 4;

[0031] Two limiting rings 3, the two limiting rings 3 are respectively installed at both ends of the housing 6 through mounting buckles 2, a plurality of card slots 13 are opened on the inner surfaces of the limiting rings 3, and a plurality of heat dissipation fins 9 are fixedly connected to the front and back surfaces of the housing 6;

[0032] The slider 16 is clamped into the groove of the reciprocating lead screw 10. By the rotation of the rotating ring 17 and the cooperation with the limiting ring 14 and the limiting strip 5, the reciprocating lead screw 10 can be driven to perform reciprocating motion. The length of the limiting strip 5 is determined according to requirements, so that the reciprocating motion can be carried out without the rotation of the movable shaft 4. The limiting strip 5 moves inside the card slot 13, and the limiting ring 3 is detachable, which is convenient for later replacement.

[0033] An installation base frame 1 is installed at the bottom of the housing 6. The installation base frame 1 includes a bottom plate 101, and installation holes 105 are opened at positions close to the four corners of the top of the bottom plate 101;

[0034] The installation holes 105 are convenient for installing the bottom plate 101 at the corresponding position.

[0035] Four buffer bolts 102 are fixedly connected to the top of the bottom plate 101, a support plate 103 is installed on the top of the buffer bolts 102, and the support plate 103 is installed at the bottom of the housing 6 through bolts 104;

[0036] Threaded holes for threaded connection with the bolts 104 are opened at the bottom of the housing 6. The buffer bolts 102 can play a role in shock absorption, and the buffer bolts 102 can be made of rubber.

[0037] A placement frame 7 is installed at a position close to one side of the top of the housing 6, and a lid 8 is arranged on the top of the placement frame 7;

[0038] The lid 8 is installed inside the placement frame 7 through bolts 104, and a controller and a power switch are installed inside the placement frame 7.

[0039] Four mounting bolts 11 are installed on the top of the housing 6, and the top ends of the mounting bolts 11 are fixedly connected to a heat dissipation frame 12;

[0040] A through opening is provided at the top of the heat dissipation frame 12, and the mounting bolts 11 are made of plastic.

[0041] A rotating frame 18 is installed inside the heat dissipation frame 12, and a heat dissipation fan 19 is installed at the bottom of the rotating frame 18;

[0042] The heat dissipation fan 19 increases the air flow rate to assist the heat dissipation fins 9 in heat dissipation.

[0043] The working principle of the shaft-type linear motor provided by the present utility model is as follows:

[0044] A rotating ring 17 with a slider 16 on its inner surface is installed inside the housing 6 through two bearings 15, and then the stability of the rotating ring 17 and the stator on the inner surface of the housing 6 during operation is increased through two limiting rings 14. And a reciprocating lead screw 10 with movable shafts at both ends is installed inside the rotating ring 17. By rotating the rotating ring 17 in the same direction, the reciprocating lead screw 10 can be driven to reciprocate inside the housing 6. During actual use, by driving the rotating ring 17 to rotate in the same direction by the stator in the housing 6, the reciprocating lead screw 10 can be driven to reciprocate through the slider 16, thereby driving the movable shaft 4 to reciprocate. During this process, the limiting strip 5 moves in the card slot 13 of the limiting ring 3, so that reciprocating motion can be performed without the movable shaft 4 rotating.

[0045] Compared with the related art, the shaft-type linear motor provided by the present utility model has the following beneficial effects:

[0046] In order to increase the stability of the output shaft of the shaft-type linear motor during movement, a rotating ring 17 with a slider 16 on its inner surface is installed inside the housing 6 through two bearings 15, and then the stability of the rotating ring 17 and the stator on the inner surface of the housing 6 during operation is increased through two limiting rings 14. And a reciprocating lead screw 10 with movable shafts at both ends is installed inside the rotating ring 17. By rotating the rotating ring 17 in the same direction, the reciprocating lead screw 10 can be driven to reciprocate inside the housing 6. Through this design, it is not necessary for the rotating ring 17 to frequently switch between forward and reverse rotations. Just rotate the rotating ring 17 in the same direction using the movement principle of the reciprocating lead screw 10, which increases the operating stability of the shaft-type linear motor.

[0047] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included within the patent protection scope of the present utility model.

Claims

1. An axial linear motor, characterized in that, Comprising: A housing; Two limiting rings, the two limiting rings are respectively installed at positions close to both ends inside the housing, two bearings are installed at positions close to the middle on the inner surface of the housing, a rotating ring is arranged on the inner surfaces of the two bearings, a slider is installed on the inner surface of the rotating ring, a reciprocating lead screw is arranged on the inner surface of the rotating ring, both ends of the reciprocating lead screw are fixedly connected with movable shafts, and limiting strips are fixedly connected to the outer surfaces of the movable shafts; Two limiting rings, the two limiting rings are respectively installed at both ends of the housing through mounting buckles, a plurality of card slots are formed on the inner surfaces of the limiting rings, and a plurality of heat dissipation fins are fixedly connected to the front and back surfaces of the housing.

2. The axial linear motor according to claim 1, wherein An installation base frame is installed at the bottom of the housing, the installation base frame includes a bottom plate, and installation holes are formed at positions close to the four corners on the top of the bottom plate.

3. The axial linear motor according to claim 2, wherein, Four buffer bolts are fixedly connected to the top of the bottom plate, a support plate is installed on the top of the buffer bolts, and the support plate is installed at the bottom of the housing through bolts.

4. The axial linear motor according to claim 1, characterized in that A placement frame is installed at a position close to one side on the top of the housing, and a lid is arranged on the top of the placement frame.

5. The axial linear motor according to claim 1, wherein, Four mounting bolts are installed on the top of the housing, and the top ends of the mounting bolts are fixedly connected with a heat dissipation frame.

6. The axial linear motor according to claim 5, wherein, A rotating frame is installed inside the heat dissipation frame, and a heat dissipation fan is installed at the bottom of the rotating frame.

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