CN218514240U

CN218514240U - Variable frequency motor heat dissipation device for film blowing machine

Info

Publication number: CN218514240U
Application number: CN202222757650.3U
Authority: CN
Inventors: 尚国栋; 路文革; 吴建梅; 陈学静
Original assignee: Shijiazhuang Yucai Medicinal Packaging Materials Co ltd
Current assignee: Shijiazhuang Yucai Medicinal Packaging Materials Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-02-21
Anticipated expiration: 2032-10-19

Abstract

The utility model relates to a variable frequency motor heat dissipation technical field discloses a variable frequency motor heat abstractor for inflation film manufacturing machine, including motor main body, motor main body includes the casing and is fixed in front end housing, the rear end cap at both ends around the casing, rotates on the front and back end cap and is connected with the main shaft, and the one end of main shaft is fixed with gear one, fixedly connected with safety cover on the rear end cap, and the safety cover internal rotation is connected with pivot three, installs flabellum and gear five in the pivot three, still is provided with the baffle in the safety cover. The partition board is rotatably connected with a first rotating shaft and a second rotating shaft, a second gear and a third gear are respectively fixed at two ends of the first rotating shaft, a fourth gear is fixed at one end of the second rotating shaft, the first gear is meshed with the second gear, the third gear is meshed with the fourth gear, and the fourth gear is meshed with the fifth gear. The utility model discloses an extension inverter motor's main shaft passes through gear drive at the main shaft extension end and connects the flabellum, comes to dispel the heat for inverter motor, guarantees inverter motor steady operation, and then ensures that the inflation film manufacturing machine can steady operation.

Description

Variable frequency motor heat dissipation device for film blowing machine

Technical Field

The utility model belongs to the technical field of the inverter motor heat dissipation, specifically be an inverter motor heat abstractor for inflation film manufacturing machine.

Background

The film blowing machine is a device for heating and melting plastic particles and then blowing the melted plastic particles into a cylindrical film, and mainly comprises an extruder, a machine head, a die head, a cooling device, a foam stabilizing frame, a traction winding device and the like. The cylindrical film produced by the film blowing machine can be further processed into various film packaging products, such as: plastic bags, food packaging bags and the like which are frequently used in daily life of people.

At present, most of medicine packaging bags used in the medicine industry are produced by a film blowing machine, and in order to ensure the safety of medicine packaging, the quality requirements of the medicine industry on the aspects of difficult breakage and the like of the medicine packaging bags are higher than those of common packaging bags. Therefore, in order to achieve the required quality, the operation of the film blowing machine needs to be ensured to be stable, and the thickness of blown film products is uniform and consistent.

In fact, due to the particularity of film blowing production, the film blowing machine is in a continuous working state, a large amount of heat generated in the operation of the blow molding machine and the continuous high temperature in a packaging bag production workshop cause that the heat generated by a variable frequency motor for driving an extrusion mechanism in the film blowing machine to operate cannot be quickly removed, so that the normal operation of the variable frequency motor is influenced due to overheating, an oil leakage accident easily occurs to a bearing at the joint of the variable frequency motor and the extrusion mechanism, and the operation of the film blowing machine is unstable as a result.

In addition, because the motor for driving the main shaft in the extrusion mechanism to rotate is a variable frequency motor, the variable frequency motor is connected with the heat dissipation fan provided by the variable frequency motor, but the heat dissipation fan is not the variable frequency motor, when the frequency of the frequency converter of the motor is adjusted, the heat dissipation fan is abnormal due to continuous change of the actual working frequency and is damaged quickly. And in case the radiator fan takes place unusually or damages, can not play heat dissipation and cooling action to inverter motor, inverter motor then can be more easily because overheated and produce unusually to long-term operation still can take place the motor and burn out the accident. So, also further leaded to the unable steady operation of inflation film manufacturing machine.

In order to solve the above-mentioned problems, it is necessary to improve a heat dissipation mechanism of a motor to which a main shaft of a film blowing machine is connected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: in order to solve the problem provided by the above, a variable frequency motor heat dissipation device for a film blowing machine is provided.

The utility model adopts the technical scheme as follows: the utility model provides a inverter motor heat abstractor for inflation film manufacturing machine, includes motor main body, motor main body includes the casing, the front end fixedly connected with front end housing of casing, the rear end fixedly connected with rear end cap of casing, it is connected with the main shaft to rotate jointly on front end housing and the rear end cap, and front end housing, rear end cap are run through respectively at the main shaft both ends to stretch out to both sides. Fixedly connected with safety cover on the rear end cap, the safety cover internal rotation is connected with pivot three, fixed mounting has the flabellum on the pivot three, in the safety cover in still fixedly be provided with the baffle between flabellum and the rear end cap.

The main shaft stretch out in the coaxial fixedly connected with gear one of one end of rear end cover, wear to be equipped with pivot one on the baffle, and pivot one with the baffle rotates to be connected, the coaxial fixedly connected with gear two of one end of pivot one, gear two with gear one meshes mutually, the coaxial fixedly connected with gear three of the other end of pivot one, one side of baffle is rotated and is connected with pivot two, coaxial fixedly connected with gear four on the pivot two, gear four with gear three-phase meshing, the coaxial fixedly connected with gear five of one end of pivot three, gear five with gear four meshes mutually.

The utility model discloses in, gear one is less than 1 to five whole drive ratios of gear, and the inverter motor main shaft passes through the obvious grow of multiunit gear drive output to the three epaxial rotational speeds of pivot, and when inverter motor's rotational speed was lower, higher rotational speed also can be kept with the flabellum to pivot three, dispels the heat for inverter motor and main shaft are better.

In a preferred embodiment, a side wall of the protective cover is provided with a grid-shaped vent hole, and the partition plate is also in a hollow grid shape.

In a preferred embodiment, a stator is disposed on an inner wall of the housing, and a rotor is disposed on the main shaft.

In a preferred embodiment, the front end cover is provided with a first ventilation opening.

In a preferred embodiment, the rear end cover is provided with a second ventilation opening.

In a preferred embodiment, a dust screen is fixedly mounted on the outer portion of the first vent of the front end cover and the outer portion of the latticed vent of the protective cover.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, main shaft through extension inverter motor, and connect a mechanical fan through the driven gear train of multiunit meshing in the extension end, come for inverter motor additionally to increase one set of new cooling system, the driven gear train of multiunit meshing not only is the effect of playing the transmission hookup between inverter motor main shaft and the mechanical fan, still through setting up lower drive ratio, the rotational speed of final output to flabellum has been improved, thus, even when inverter motor's rotational speed is lower, carry out the pivoted flabellum along with the main shaft and also can keep higher rotational speed, improve inverter motor and main shaft's heat-sinking capability. Thereby solved current inverter motor in the pharmaceutical packaging bag workshop because ambient temperature is too high, the not enough problem of self heat-sinking capability, also solved when inverter motor from the radiator fan trouble of taking, because the heat-sinking capability is not enough and the abnormity and the trouble problem that lead to, and then also ensured inflation film manufacturing machine and can the steady operation, the film product thickness that makes its blowing is more even unanimous, has also improved the quality of the pharmaceutical packaging bag of final output.

2. The utility model discloses in, through the dust screen that both ends set up around, can minimize the dust and enter into motor main body in, protected motor main body's inner structure, further guaranteed that the inverter motor that inflation film manufacturing machine used can normal operating, just also ensured inflation film manufacturing machine can the steady operation.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 2;

fig. 4 is a schematic sketch of the three-dimensional structure of the middle dust screen of the present invention.

The labels in the figure are: 1-shell, 2-front end cover, 3-rear end cover, 4-main shaft, 5-protective cover, 6-gear I, 7-clapboard, 8-rotating shaft I, 9-gear II, 10-gear III, 11-rotating shaft II, 12-gear IV, 13-rotating shaft III, 14-fan blade, 15-gear V, 16-stator, 17-rotor, 18-first ventilation opening, 19-second ventilation opening and 20-dustproof net.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described below in combination, clearly and completely, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments listed in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The variable frequency motor heat dissipation device for a film blowing machine according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Example (b):

the embodiment of the utility model provides a pair of inverter motor heat abstractor for inflation film manufacturing machine, refer to fig. 1-3 and show, including the motor main part, the motor main part includes casing 1, is provided with stator 16 on the inner wall of casing 1, is provided with rotor 17 on the main shaft 4. The front end fixedly connected with front end housing 2 of casing 1, first vent 18 has been seted up on front end housing 2, the rear end fixedly connected with rear end housing 3 of casing 1, second vent 19 has been seted up on the rear end housing 3, it is connected with main shaft 4 to rotate jointly on front end housing 2 and the rear end housing 3, casing 1 cooperation front and back end housing and main shaft 4 constitute inverter motor's motor main part, motor main part passes through main shaft 4 and links to each other with the extrusion mechanism of inflation film manufacturing machine, provides power for extrusion mechanism.

The two ends of the main shaft 4 respectively penetrate through the front end cover 2 and the rear end cover 3 and extend out to the two sides, the rear end cover 3 is fixedly connected with the protective cover 5, one side wall of the protective cover 5 is provided with latticed vent holes, the protective cover 5 is rotatably connected with the third rotating shaft 13 in the protective cover 5, the third rotating shaft 13 is fixedly provided with fan blades 14, and the protective cover 5 plays a role in protecting the fan blades 14 inside the protective cover and the transmission connecting structure of the fan blades. A partition plate 7 is fixedly arranged between the fan blades 14 and the rear end cover 3 in the protective cover 5, and the partition plate 7 is also in a hollow grid shape. Protective cover 5, baffle 7 in this embodiment to and front end housing 2 and rear end cap 3, all design for fretwork or grid structure that can ventilate to at flabellum 14 rotation in-process, guarantee the circulation of inside and outside air, make things convenient for flabellum 14 to dispel the heat for inverter motor fast.

The main shaft 4 stretches out in the coaxial fixedly connected with gear one 6 of one end of rear end cover 3, wear to be equipped with pivot one 8 on the baffle 7, and pivot one 8 rotates with baffle 7 to be connected, the coaxial fixedly connected with gear two 9 of one end of pivot one 8, gear two 9 meshes with gear one 6 mutually, the coaxial fixedly connected with gear three 10 of the other end of pivot one 8, one side of baffle 7 is rotated and is connected with pivot two 11, coaxial fixedly connected with gear four 12 on the pivot two 11, gear four 12 meshes with gear three 10 mutually, the coaxial fixedly connected with gear five 15 of one end of pivot three 13, gear five 15 meshes with gear four 12 mutually. In the structure, the main shaft 4 rotates to drive the gear I6 to rotate, the gear I6 is meshed with the gear II 9, so as to drive the gear II 9 and the rotating shaft I8 to rotate, meanwhile, the gear III 10 can synchronously rotate along with the gear II 9 and the rotating shaft I8, the gear III 10 drives the gear V15 to rotate through the gear IV 12 on the rotating shaft II 11, so as to drive the rotating shaft III 13 to rotate in the protective cover 5, so as to drive the fan blades 14 to rotate, the rotating process of the fan blades 14 can dissipate heat in the shell 1, so as to ensure the stable operation of the motor main body, in the structure, the integral transmission ratio of the gear I to the gear V is less than 1, the rotating speed of the fan blades 14 is improved by utilizing multi-group gear meshing transmission, when the rotating speed of the variable frequency motor is lower, the fan blades can also better dissipate heat for the variable frequency motor and the main shaft thereof at a higher rotating speed, so as to improve the heat dissipation capacity of the variable frequency motor adopted by the film blowing machine, and ensure the stable operation of the variable frequency motor.

In this embodiment, the dust screen 20 is fixedly mounted on the outside of the first vent 18 of the front end cover 2 and the outside of the latticed vent of the protective cover 5, and the dust screen 20 can play a certain dustproof role, so that external dust can be prevented from entering the housing 1 as much as possible, thereby achieving the internal structure of the motor main body.

The implementation principle of the variable frequency motor heat dissipation device for the film blowing machine is as follows: the utility model discloses an extension inverter motor's main shaft 4 to connect a mechanical fan through multiunit meshing driven gear train in the extension end, come for inverter motor additionally to increase one set of new cooling system, the in-process of inverter motor operation, flabellum 14 drives the air current and flows, for inverter motor heat dissipation cooling. The multiple sets of gear sets in meshing transmission not only play a role in transmission connection between the spindle 4 of the variable frequency motor and the fan blades 14, but also improve the rotating speed finally output to the fan blades 14 by setting a lower transmission ratio, so that the fan blades 14 rotating along with the spindle 4 can also keep a higher rotating speed even when the rotating speed of the variable frequency motor is lower, and the heat dissipation capacity of the variable frequency motor and the spindle thereof is improved. Thereby solved current inverter motor in the pharmaceutical packaging bag workshop because ambient temperature is too high, the not enough problem of self heat-sinking capability, also solved when inverter motor from the radiator fan trouble of taking, because the heat-sinking capability is not enough and the abnormity and the trouble problem that lead to, and then also ensured inflation film manufacturing machine and can the steady operation, the film product thickness that makes its blowing is more even unanimous, has also improved the quality of the pharmaceutical packaging bag of final output.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a inverter motor heat abstractor for inflation film manufacturing machine which characterized in that: comprises a motor main body, the motor main body comprises a shell (1), the front end of the shell (1) is fixedly connected with a front end cover (2), the rear end of the shell (1) is fixedly connected with a rear end cover (3), the front end cover (2) and the rear end cover (3) are jointly and rotatably connected with a spindle (4), two ends of the spindle (4) respectively penetrate through the front end cover (2) and the rear end cover (3) and extend out towards two sides, a protective cover (5) is fixedly connected on the rear end cover (3), a third rotating shaft (13) is rotatably connected in the protective cover (5), fan blades (14) are fixedly installed on the third rotating shaft (13), a first rotating shaft (8) is arranged in the protective cover (5) and rotatably connected with the partition plate (7) between the fan blades (14) and the rear end cover (3), the spindle (4) extends out of a first coaxial gear (6) at one end of the rear end cover (3), a first rotating shaft (8) is arranged on the partition plate (7), a first rotating shaft (8) is rotatably connected with a second coaxial gear (9), the second gear (9) is fixedly connected with a first rotating shaft (10), and the third gear (11) is rotatably connected with a third rotating shaft (10), the coaxial fixedly connected with gear four (12) on pivot two (11), gear four (12) with gear three (10) meshes mutually, the coaxial fixedly connected with gear five (15) of one end of pivot three (13), gear five (15) with gear four (12) meshes mutually.

2. The variable frequency motor heat dissipation device for the film blowing machine as recited in claim 1, wherein: the side wall of the protective cover (5) is provided with latticed vent holes, and the partition plate (7) is also in a hollowed latticed shape.

3. The variable frequency motor heat dissipation device for the film blowing machine as recited in claim 1, wherein: a stator (16) is arranged on the inner wall of the shell (1), and a rotor (17) is arranged on the main shaft (4).

4. The variable frequency motor heat dissipation device for the film blowing machine as claimed in claim 1, wherein: the front end cover (2) is provided with a first ventilation opening (18).

5. The variable frequency motor heat dissipation device for the film blowing machine as claimed in claim 1, wherein: and a second ventilation opening (19) is formed in the rear end cover (3).

6. The variable frequency motor heat dissipation device for the film blowing machine as claimed in claim 1, wherein: the dust screen (20) is fixedly mounted outside the first ventilation opening (18) of the front end cover (2) and outside the latticed ventilation holes of the protection cover (5).