A device capable of solving axial movement

Abstract

The present invention discloses a device capable of solving the problem of axial movement, comprising three sleeves, a connecting part is arranged in the middle of the sleeves, the connecting part is connected into one body by a ring disk, the ring disk surrounds the shaft, and a number of parts are arranged on the shaft; two piston blocks are symmetrically arranged inside the sleeves, each piston block is fixedly connected to a piston rod, a positioning plate is arranged at the end of the piston rod, and the piston block divides the inside of the sleeve into three cavities, wherein the working chamber is located between the two piston blocks, and the auxiliary chamber' is located outside the piston block, the working chamber is filled with hydraulic oil, and an auxiliary spring is arranged in the auxiliary chamber', and the auxiliary spring acts on the piston block; the connecting part is provided with a filling hole connected to the working chamber, and the filling hole is sealed with a screw plug. The present invention has the characteristics of simple structure, easy production, ingenious design, and can control axial movement.

Description

Technical Field

[0001] The invention relates to a device capable of solving the problem of axial movement. Background Art

[0002] Motor endplay, also known as axial endplay, refers to the inevitable small movement of the motor shaft along the axial direction during operation. The axis direction is the direction of the shaft, and the direction perpendicular to the axis direction is the direction of the cylindrical surface of the shaft.

[0003] The axial movement of the motor will increase the vibration and noise of the motor, damage the equipment and reduce its service life.

[0004] Generally speaking, the reason for motor movement is that the gap between the rotor shaft and the rotor is too large.

[0005] In its daily production, the company does not have a mature technical solution to solve the axial movement. Summary of the invention

[0006] The present invention aims at the deficiencies in the prior art and provides a device capable of solving the problem of axial movement, which has a simple structure and an ingenious design and can control the axial movement.

[0007] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a device capable of solving axial movement, comprising three sleeves, a connecting part is arranged in the middle of the sleeve, the connecting part is connected into one body by a ring disk, the ring disk surrounds the shaft, and a number of parts are arranged on the shaft; two piston blocks are symmetrically arranged inside the sleeve, each of the piston blocks is fixedly connected to a piston rod, a positioning plate is arranged at the end of the piston rod, and the piston block divides the inside of the sleeve into three cavities, wherein the working chamber is located between the two piston blocks, and the auxiliary chamber is located outside the piston block ', the working chamber is filled with hydraulic oil, the auxiliary chamber' is provided with an auxiliary spring, and the auxiliary spring acts on the piston block; the connecting portion is provided with a filling hole connected to the working chamber, and the filling hole is sealed with a screw plug; a limiting hole is provided at the end of the positioning plate, a sliding block is provided in the positioning hole, a connecting rod is provided on the sliding block, a circular limiting pressure plate is provided at the end of the connecting rod, a spring groove is provided at the end, and a control spring is provided on the outer sleeve of the connecting rod, one end of the control spring rests on the limiting pressure plate, and the other end is provided in the spring groove.

[0008] In the above technical solution, preferably, a rubber pad with a buffering function is provided at the end of the limiting pressure plate.

[0009] In the above technical solution, preferably, the distances from the limiting pressure plate to the end surface of the end portion are L1 and L2, and the maximum value of the sum of L1 and L2 does not exceed 0.5 mm.

[0010] The invention has the characteristics of simple structure, convenient production, ingenious design and capable of controlling axial movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the working axis of the present invention.

[0012] Figure 2 It is a schematic diagram of the structure of the present invention.

[0013] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0014] Figure 4 This is a schematic diagram of the axial movement. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figure 1 To Attachment Figure 4 As shown, a device capable of solving axial movement comprises three sleeves 3, wherein a connecting portion 32 is arranged in the middle of the sleeves 3, wherein the connecting portion 32 is connected as a whole by a ring disk, wherein the ring disk surrounds the shaft 1, and wherein a plurality of parts 10 are arranged on the shaft 1; wherein two piston blocks 5 are symmetrically arranged inside the sleeves 3, wherein each of the piston blocks 5 is fixedly connected to a piston rod 51, wherein a positioning plate 4 is arranged at the end of the piston rod 51, wherein the piston blocks 5 divide the interior of the sleeve 3 into three cavities, wherein the working chamber 31 is located between the two piston blocks 5, and the auxiliary chamber 31′ is located outside the piston blocks 5, wherein the working chamber 31 is filled with hydraulic oil, and the auxiliary chamber 31′ is filled with hydraulic oil. An auxiliary spring 30 is arranged in the cavity 31′, and the auxiliary spring 30 acts on the piston block 5; the connecting portion 32 is provided with a filling hole connected to the working chamber 31, and the filling hole is sealed with a screw plug 33; the end 40 of the positioning plate 4 is provided with a limiting hole 41, and a slider 23 is arranged in the positioning hole 41, and the slider 23 is provided with a connecting rod 22, and a circular limiting pressure plate 2 is arranged at the end of the connecting rod 22, and a spring groove 42 is arranged at the end 40, and a control spring 43 is arranged on the outer sleeve of the connecting rod 22, and one end of the control spring 43 is against the limiting pressure plate 2, and the other end is arranged in the spring groove 42.

[0016] A rubber pad 21 for buffering is arranged at the end of the limit pressure plate 2 .

[0017] The distances between the limit pressure plate 2 and the end surface of the end portion 40 are L1 and L2, and the maximum value of the sum of L1 and L2 does not exceed 0.5 mm.

[0018] The ring disk of the device is fixed, and the three sleeves 3 are evenly distributed around the shaft 1, so that the force borne by the limit pressure plate 2 is relatively uniform, ensuring that no deviation occurs.

[0019] According to the production requirements of the enterprise, it is generally necessary to control the axial movement to be less than 0.5. Therefore, the sum of the distances from the two limit pressure plates 2 of the device to the end surface of the end 40 is controlled to be less than 0.5.

[0020] The device utilizes two limit pressing plates 2 to press on the part 10, thereby realizing the clamping function. When movement occurs, a control spring is utilized to balance the movement.

[0021] Additionally, the device is adjustable to accommodate a wider range of sizes.

[0022] When adjustment is required, the screw plug 33 needs to be unscrewed; if a larger size needs to be adjusted, hydraulic oil is poured into the interior; and if a smaller size needs to be adjusted, the hydraulic oil is pumped out from the interior.

[0023] The device uses hydraulic oil to adjust the distance between the two positioning plates 4, and can achieve precise adjustment with higher accuracy than ordinary mechanical adjustment methods.

[0024] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

[0025] The invention has the characteristics of simple structure, convenient production, ingenious design and capable of controlling axial movement.

Claims

1. A device capable of solving axial movement, characterized in that: The invention comprises three sleeves (3), wherein a connecting portion (32) is arranged in the middle of the sleeves (3), wherein the connecting portion (32) is connected to one another by means of a ring disk, wherein the ring disk surrounds a shaft (1), and wherein a plurality of parts (10) are arranged on the shaft (1); wherein two piston blocks (5) are symmetrically arranged inside the sleeves (3), wherein each of the piston blocks (5) is fixedly connected to a piston rod (51), wherein a positioning plate (4) is arranged at the end of the piston rod (51), and wherein the piston blocks (5) divide the inside of the sleeve (3) into three cavities, wherein A working chamber (31) is located between the two piston blocks (5), and an auxiliary chamber (31′) is located outside the piston block (5). The working chamber (31) is filled with hydraulic oil. An auxiliary spring (30) is arranged in the auxiliary chamber (31′), and the auxiliary spring (30) acts on the piston block (5). The connecting portion (32) is provided with a filling hole connected to the working chamber (31), and the filling hole is sealed with a screw plug (33). The end (40) of the positioning plate (4) is provided with a limiting hole (41). A slider (23) is arranged in the positioning hole (41), the slider (23) is provided with a connecting rod (22), a circular pancake-shaped limiting pressure plate (2) is arranged at the end of the connecting rod (22), a spring groove (42) is arranged at the end (40), a control spring (43) is arranged on the outer sleeve of the connecting rod (22), one end of the control spring (43) is pressed against the limiting pressure plate (2), and the other end is arranged in the spring groove (42), a rubber pad (21) with a buffering function is arranged at the end of the limiting pressure plate (2), and the distances from the limiting pressure plate (2) to the end surface of the end (40) are L1 and L2, and the maximum value of the sum of L1 and L2 does not exceed 0.5 mm.

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