Pressing plate structure for servo motor rotor

Abstract

The utility model discloses a pressing plate structure used for a servo motor rotor. The pressing plate structure comprises a limiting mechanism and a cooling fan installed at one end of the limiting mechanism. The limiting mechanism comprises a rotor, the outer side of one end of the rotor is sleeved with a pressing plate body, and one side of the interior of the pressing plate body is connected with a first bearing in a clamped mode; the side, close to the first bearing, of the pressing plate body is fixedly connected with a dustproof graphite brush, and the side, close to the dustproof graphite brush, of the pressing plate body is fixedly connected with an oil seal chamber. Wherein the other side, close to the first bearing, of the pressing plate body is connected with heat dissipation fins in an attached mode, the outer sides of the heat dissipation fins are connected with a sealing cover in a clamped mode, preferably, one end of the sealing cover is connected with a shell in an attached mode, and a plurality of grooves are formed in the end, close to the sealing cover, of the shell; by arranging the limiting mechanism, the position of the pressing plate body can be quickly fixed, and the dustproof sealing performance of the motor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely is a kind of for servo motor rotor pressing plate structure. BACKGROUND

[0002] With the development of motor technology, permanent magnet motor is more and more widely used due to its high torque density, high efficiency and other advantages, and with the development of permanent magnet servo motor, low inertia, low vibration, low noise, high precision, long life and other performances gradually become the basic requirements of motor, the existing permanent magnet motor generally requires one-time dynamic balancing after rotor assembly, and generally realizes dynamic balancing position on pressing plate by using weighted dynamic balancing, and the rationality of rotor pressing plate structure is closely related to the overall reliability of permanent magnet motor, and the commonly used rotor pressing plate is generally solid metal plate with groove.

[0003] Publication No. CN212183218U discloses a new rotor pressing plate structure, which is provided with a plurality of dynamic balancing weight removal holes, and a plurality of dynamic balancing weight removal hole positioning grooves are arranged in the pressing plate, and the dynamic balancing weight removal hole positioning grooves are used as reference positioning holes for the dynamic balancing weight removal holes, and the pressing plate is pre-balanced through the pre-balancing holes and the pre-balancing ribs, so that the balance compensation effect is more ideal, the vibration noise of the motor is further reduced, the heat dissipation is effective, the plurality of heat dissipation holes can effectively dissipate heat for the rotor core, the weight reduction design is adopted, the pressing plate is reduced in weight by the weight removal mode, the weight of the pressing plate is reduced by the weight removal grooves, and the heat dissipation holes and the chamfers can reduce the weight of the pressing plate, but the patent still has the following problems in actual use:

[0004] Although the new rotor pressing plate structure is provided with a plurality of dynamic balancing weight removal holes, and a plurality of dynamic balancing weight removal hole positioning grooves are arranged in the pressing plate, and the dynamic balancing weight removal hole positioning grooves are used as reference positioning holes for the dynamic balancing weight removal holes, and the pressing plate is pre-balanced through the pre-balancing holes and the pre-balancing ribs, so that the balance compensation effect is more ideal, the vibration noise of the motor is further reduced, the heat dissipation is effective, the plurality of heat dissipation holes can effectively dissipate heat for the rotor core, the weight reduction design is adopted, the pressing plate is reduced in weight by the weight removal mode, the weight of the pressing plate is reduced by the weight removal grooves, and the heat dissipation holes and the chamfers can reduce the weight of the pressing plate, but the patent still has the following problems in actual use:

[0005] A pressing plate structure for servo motor rotor is provided to solve the problems in the above background. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of for servo motor rotor pressing plate structure, to solve the problem that the reference positioning holes for each dynamic balancing weight removal hole are provided with weight removal hole positioning groove, and pre-balancing hole and pre-balancing rib are used to realize pre-balancing for pressing plate, to achieve more ideal balance compensation effect, but the installation of pressing plate is not convenient.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of for servo motor rotor pressing plate structure, including limiting mechanism, and cooling fan installed in the one end of limiting mechanism;

[0008] Further comprising:

[0009] The limiting mechanism includes a rotor, and a pressing plate body is arranged on the outer side of one end of the rotor; a first bearing is connected to one side of the inner part of the pressing plate body;

[0010] The side of the pressing plate body close to the first bearing is fixedly connected with a dustproof graphite brush, and the side of the pressing plate body close to the dustproof graphite brush is fixedly connected with an oil seal chamber.

[0011] The other side of the pressing plate body close to the first bearing is connected with a heat dissipation fin, and the outer side of the heat dissipation fin is connected with a sealing cover.

[0012] Preferably, one end of the sealing cover is connected with a shell, a plurality of grooves are formed in the inner part of one end of the shell, the number of the grooves is eight, the grooves are uniformly distributed in the inner part of one end of the shell, and a limiting cylinder is fixedly connected to the inner part of the grooves.

[0013] Preferably, a plurality of limiting holes are formed in the inner part of the top end of the limiting cylinder, the number of the limiting holes is twelve, the limiting holes are uniformly distributed in the top end of the limiting cylinder, and a steel ball is arranged in the inner part of the limiting hole.

[0014] Preferably, one side of the steel ball is connected with a bolt, the outer side of the bottom end of the bolt is connected with the limiting cylinder in a sliding mode, the outer side of the top end of the bolt is connected with the sealing cover in a sliding mode, and the other side of the steel ball is connected with a sliding cover.

[0015] Preferably, the inner wall of the sliding cover is connected with the limiting cylinder in a sliding mode, a spring is arranged in the inner part of the sliding cover, one end of the spring is fixedly connected with a fixed ring, and the inner wall of the fixed ring is fixedly connected with the limiting cylinder.

[0016] Preferably, the outer side of the end of the rotor away from the pressing plate body is sleeved with an electromagnetic brake, one side of the electromagnetic brake is connected with a second bearing, and the outer side of the second bearing is fixedly connected with the shell.

[0017] Preferably, the outer side of the end of the rotor close to the second bearing is sleeved with an encoder, one end of the encoder is fixedly connected with the shell, the outer side of the shell close to the encoder is fixedly connected with a rear end cover, one side of the rear end cover is fixedly connected with a wire outlet box, one side of the wire outlet box is fixedly connected with a protective cover, and one side of the inner part of the protective cover is fixedly connected with a cooling fan.

[0018] Compared with the prior art, the beneficial effects of the pressing plate structure for the rotor of the servo motor are as follows:

[0019] By setting the limiting mechanism can not only quickly position the fixed plate body, but also improve the dustproof sealing of the motor, the cooperation between the dustproof graphite brush and the rotor can improve the sealing of the device, reduce the entry of impurities, the setting of the oil seal chamber can further improve the sealing of the device, and the lubrication can reduce the wear of the rotor during rotation, the setting of the heat dissipation fins can improve the heat dissipation effect of the device, the insertion of the bolt through the sealing cover and into the limiting cylinder, and the limiting of the shell by the bolt can complete the assembly of the motor shell, and the cooperation between the steel ball, the sliding cover and the bolt can fix the position of the bolt and improve the stability of the sealing cover. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the sectional structure of the utility model;

[0021] Figure 2 It is a schematic view of the sectional structure of the utility model Figure 1 It is a schematic view of the sectional structure of the utility model;

[0022] Figure 3 It is a schematic view of the sectional structure of the utility model Figure 1 It is a schematic view of the sectional structure of the utility model;

[0023] Figure 4 It is a schematic view of the sectional structure of the utility model Figure 3 It is a schematic view of the sectional structure of the utility model;

[0024] Figure 5 It is a schematic view of the sectional structure of the utility model Figure 3 It is a schematic view of the sectional structure of the utility model;

[0025] In the drawing: 1, limiting mechanism; 101, rotor; 102, fixed plate body; 103, first bearing; 104, dustproof graphite brush; 105, oil seal chamber; 106, heat dissipation fin; 107, sealing cover; 108, shell; 109, groove; 110, limiting cylinder; 111, limiting hole; 112, steel ball; 113, bolt; 114, sliding cover; 115, spring; 116, fixed ring; 117, brake; 118, second bearing; 119, encoder; 120, rear end cover; 121, wire outlet box; 122, protective cover; 123, cooling fan. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer toFigures 1-5 The present invention provides a technical solution: a pressure plate structure for a servo motor rotor, including a limiting mechanism 1 and a cooling fan 123 installed at one end of the limiting mechanism 1; the limiting mechanism 1 includes a rotor 101, a pressure plate body 102 is sleeved on the outer side of one end of the rotor 101, and a first bearing 103 is engaged and connected on one side inside the pressure plate body 102. By setting the first bearing 103 and the second bearing 118, the wear of the rotor 101 can be reduced.

[0028] A dustproof graphite brush 104 is fixedly connected to the side of the pressure plate body 102 near the first bearing 103, and an oil seal chamber 105 is fixedly connected to the side of the pressure plate body 102 near the dustproof graphite brush 104; a heat dissipation fin 106 is attached to the other side of the pressure plate body 102 near the first bearing 103, and a sealing cover 107 is snapped onto the outer side of the heat dissipation fin 106. By setting the heat dissipation fin 106, the heat dissipation effect of the pressure plate body 102 can be improved.

[0029] One end of the sealing cap 107 is fitted and connected to the housing 108. The housing 108 has a number of grooves 109 inside the end near the sealing cap 107. There are eight grooves 109, and the grooves 109 are evenly distributed inside the end of the housing 108. The grooves 109 are fixedly connected to the inside of the grooves 109. By setting eight grooves 109, the stability of the sealing cap 107 can be improved.

[0030] The top of the limiting cylinder 110 has a number of limiting holes 111, and there are twelve limiting holes 111 evenly distributed on the top of the limiting cylinder 110. A steel ball 112 is provided inside the limiting hole 111. A pin 113 is attached to one side of the steel ball 112. The outer side of the bottom end of the pin 113 is slidably connected to the limiting cylinder 110. The outer side of the top end of the pin 113 is slidably connected to the sealing cover 107. A sliding cover 114 is attached to the other side of the steel ball 112. The position of the pin 113 can be fixed by the cooperation between the steel ball 112, the sliding cover 114 and the pin 113.

[0031] The inner wall of the sliding cover 114 is slidably connected to the limiting cylinder 110. A spring 115 is provided inside the sliding cover 114. A fixing ring 116 is fixedly connected to one end of the spring 115. The inner wall of the fixing ring 116 is fixedly connected to the limiting cylinder 110. The spring 115 is sleeved and connected to the limiting cylinder 110.

[0032] A brake 117 is fitted on the outer side of the rotor 101 away from the pressure plate body 102. A second bearing 118 is attached to one side of the brake 117. The outer side of the second bearing 118 is fixedly connected to the housing 108. By setting the brake 117, the rotor 101 can be stopped from rotating.

[0033] The outer side of the rotor 101 close to one end of the second bearing 118 is sleeved with an encoder 119, one end of the encoder 119 is fixedly connected with the shell 108, the outer side of the shell 108 close to the encoder 119 is fixedly connected with a rear end cover 120, one side of the rear end cover 120 is fixedly connected with a wire outlet box 121, one side of the wire outlet box 121 is fixedly connected with a protective cover 122, one side in the interior of the protective cover 122 is fixedly connected with a cooling fan 123, the cooling fan 123 is arranged to improve the heat dissipation performance of the tail of the device.

[0034] Working principle: before using the pressing plate structure for the rotor of the servo motor, the overall situation of the device needs to be checked to determine whether it can work normally, according to the Figure 1 Figure 5 As shown in the figure, first, the rotor 101 is installed in the designated position in the shell 108, then the first bearing 103 is installed in the interior of the pressing plate body 102 and sleeved on the outer side of one end of the rotor 101.

[0035] Secondly, the heat dissipation fins 106 and the sealing cover 107 are sleeved on the outer side of the pressing plate body 102, then the screwdriver is inserted into the groove 109 and the sliding cover 114 is moved downward, so as to compress the spring 1115 and at the same time release the limiting of the steel ball 112 by the sliding cover 114, that is, the bolt 113 can be inserted into the limiting cylinder 110, the position of the bolt 113 can be fixed by the cooperation between the steel ball 112, the sliding cover 114 and the bolt 113, the stability of the sealing cover 107 is improved, the limiting of the shell 108 by the bolt 113 can complete the assembly of the motor shell 108.

[0036] Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.​

Claims

1. A pressing plate structure for a servo motor rotor, comprising a limiting mechanism (1) and a cooling fan (123) mounted at one end of the limiting mechanism (1); characterized in that Further comprising: The limiting mechanism (1) comprises a rotor (101), and a pressing plate body (102) is sleeved on the outer side of one end of the rotor (101), and a first bearing (103) is clamped and connected on one side in the pressing plate body (102); Wherein, the side of the pressing plate body (102) close to the first bearing (103) is fixedly connected with a dustproof graphite brush (104), and the side of the pressing plate body (102) close to the dustproof graphite brush (104) is fixedly connected with an oil seal chamber (105); Wherein, the other side of the pressing plate body (102) close to the first bearing (103) is connected with a heat dissipation fin (106), and the outer side of the heat dissipation fin (106) is clamped and connected with a sealing cover (107).

2. The structure of the pressing plate for the rotor of the servo motor according to claim 1, characterized in that: One end of the sealing cover (107) is connected with a shell (108), a plurality of recesses (109) are formed in the interior of one end of the shell (108) close to the sealing cover (107), the number of the recesses (109) is eight, and the recesses (109) are evenly distributed in the interior of one end of the shell (108), and a limiting cylinder (110) is fixedly connected in the interior of the recess (109).

3. The structure of the pressing plate for the rotor of the servo motor according to claim 2, characterized in that: A plurality of limiting holes (111) are formed in the interior of the top end of the limiting cylinder (110), the number of the limiting holes (111) is twelve, and the limiting holes (111) are evenly distributed in the top end of the limiting cylinder (110), and a steel ball (112) is arranged in the interior of the limiting hole (111).

4. The structure of the pressing plate for the rotor of a servo motor according to claim 3, wherein: One side of the steel ball (112) is connected with a bolt (113), the bottom end of the bolt (113) is slidably connected with the limiting cylinder (110), the top end of the bolt (113) is slidably connected with the sealing cover (107), and the other side of the steel ball (112) is connected with a sliding cover (114).

5. The structure of the pressing plate for the rotor of a servo motor according to claim 4, wherein: The inner wall of the sliding cover (114) is slidably connected with the limiting cylinder (110), a spring (115) is arranged in the interior of the sliding cover (114), one end of the spring (115) is fixedly connected with a fixed ring (116), and the inner wall of the fixed ring (116) is fixedly connected with the limiting cylinder (110).

6. The structure of the pressing plate for the rotor of the servo motor according to claim 1, characterized in that: The outer side of one end of the rotor (101) away from the pressing plate body (102) is sleeved with an electromagnetic brake (117), one side of the electromagnetic brake (117) is connected with a second bearing (118), and the outer side of the second bearing (118) is fixedly connected with the shell (108).

7. A pressing plate structure for a rotor of a servo motor according to claim 6, wherein: The outer side of one end of the rotor (101) close to the second bearing (118) is sleeved with an encoder (119), one end of the encoder (119) is fixedly connected with the shell (108), the outer side of the shell (108) close to the encoder (119) is fixedly connected with a rear end cover (120), one side of the rear end cover (120) is fixedly connected with a wire outlet box (121), one side of the wire outlet box (121) is fixedly connected with a protective cover (122), and one side in the interior of the protective cover (122) is fixedly connected with the cooling fan (123).

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