Anti-vibration cooling device for rotary motor of electric shovel
By designing an anti-vibration cooling device, utilizing buffer blocks for vibration reduction, and installing the exhaust fan at an angle, the problem of loose bolts on the electric shovel's rotary motor was solved, thereby achieving equipment stability and reducing maintenance frequency.
Patent Information
- Application Number
- CN202423090803.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The fixing bolts of the existing electric shovel rotary motor are prone to loosening or breaking during vibration, leading to frequent maintenance and affecting the stability and service life of the equipment.
Design a vibration-damping cooling device, including a base, an exhaust fan, a buffer block, and a support structure. The buffer block reduces vibration and prevents bolts from loosening, while the exhaust fan dissipates heat. The exhaust fan is installed at an angle to reduce the stress on the bolts.
It effectively prevents bolts from loosening or breaking, improves equipment stability, reduces maintenance frequency, and has a simple structure and low cost.
Smart Images
Figure CN223885050U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the electric shovel technical field, especially related to a vibration -proof cooling device for electric shovel slewing motor. BACKGROUND
[0002] The slewing motor of electric shovel is used for driving the slewing mechanism of electric shovel, since the slewing motor will produce a large amount of heat in the operation process.If the heat cannot be dissipated in time, will cause the motor temperature to rise, and then influence the performance and life of motor.In prior art, generally through the installation of exhaust fan on the outside of slewing motor, the heat of slewing motor is extracted, reduces the temperature of slewing motor, to keep normal working state.But since the vibration of electric shovel is larger when operating, and the slewing motor is generally vertically arranged, the exhaust fan is installed on the slewing motor, will cause the fixing bolt of slewing motor and exhaust fan to appear looseness or fracture frequently, makes the maintenance personnel fasten or supplement frequently, sometimes broken wire cannot be taken out. UTILITY MODEL CONTENTS
[0003] The utility model discloses a vibration -proof cooling device for electric shovel slewing motor can avoid the looseness or fracture of fixing bolt.
[0004] In order to achieve the above object, the utility model adopts the technical scheme of a vibration -proof cooling device for electric shovel slewing motor, including base and exhaust fan,
[0005] The base is the hollow box of both ends opening, one end of the base is connected with the air inlet of exhaust fan through the first flange, and the other end is connected with the slewing motor through the second flange, the casing on the connection of the slewing motor and the base is provided with the opening, the upper support is welded and fixed on the bottom of the base, the upper support is U-shaped, and the lower support is symmetrically arranged below the upper support, the buffer block is arranged between the upper support and the lower support, and the upper support, the buffer block and the lower support are fixed through bolt and nut, the lower support is welded and fixed on the support block, and the support block is connected with the slewing motor.
[0006] Preferably, the air outlet of the exhaust fan is connected with the air outlet pipe through the flange, and the hot air extracted by the exhaust fan is discharged outside the electric shovel through the air outlet pipe.
[0007] Preferably, one end of the base close to the exhaust fan is inclined, and the exhaust fan is installed on the base above the slewing motor.
[0008] Preferably, the inside of the base is vertically fixed with the blocking net.
[0009] The utility model discloses a vibration -proof cooling device for electric shovel slewing motor, compared with prior art has the following advantages:
[0010] (1) through the buffer block buffering vibration, avoid the base and rotary motor flange connected bolt loose or broken, while avoiding the upper support and lower support bolt loose or broken, thereby preventing the base bottom and support block separation;
[0011] (2) simple design, easy to use, low manufacturing cost; BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is a structure schematic view of the utility model;
[0013] Fig. 2 It is a suction fan and base connection structure schematic view;
[0014] Fig. 3 It is a base internal structure schematic view. DETAILED DESCRIPTION
[0015] The utility model is further explained in connection with the drawings and specific embodiments.
[0016] As Figs. 1-3 Indicated, a kind of vibration-proof cooling device for electric shovel rotary motor, including base 1 and suction fan 2,
[0017] The base 1 is the hollow box of two ends opening;The one end of base 1 is connected with the air inlet of suction fan 2 by first flange 11, and the other end is connected with rotary motor 3 by second flange 12;The shell of rotary motor 3 is provided with opening at the connection with base 1, so that base 1 is communicated with rotary motor 3, by starting suction fan 2, the hot air inside rotary motor 3 is extracted, so that rotary motor 3 is cooled, wherein suction fan 2 is centrifugal suction fan 2;The bottom of base 1 is welded with upper support 41;The upper support 41 is U-shaped, and the lower support 43 is symmetrically arranged below the upper support 41;Buffer block 42 is arranged between the upper support 41 and lower support 43, and the upper support 41, buffer block 42 and lower support 43 are fixed by bolt 44 and nut;The lower support 43 is welded on support block 31;The support block 31 is connected with rotary motor 3, wherein the terminal box of rotary motor 3 can be support block 31, and the lower support 43 is fixed on the terminal box, when rotary motor 3 vibrates, base 1 vibrates with rotary fan, and vibration is buffered by buffer block 42, to avoid the bolt 44 on the second flange 12 loose or broken, while avoiding the bolt 44 on the upper support 41 and lower support 43 loose or broken, thereby preventing the base 1 bottom and support block 31 separation.
[0018] In the embodiment, the air outlet of suction fan 2 is connected with air outlet pipe 21 by flange, wherein the air outlet pipe 21 is corrugated hose, and the hot air extracted by suction fan 2 is discharged outside electric shovel through air outlet pipe 21.
[0019] In the embodiment, the base 1 is inclined at one end close to the air extractor 2; the air extractor 2 is obliquely installed above the rotary motor 3 on the base 1, so that the flange of the air inlet of the air extractor 2 is pressed on the base 1, the stress on the bolts 14 on the first flange 11 is reduced, the bolts 14 are prevented from being broken under vibration, and the air extractor 2 is prevented from contacting the junction box of the rotary motor 3.
[0020] In the embodiment, the inside of the base 1 is vertically fixed with the blocking net 13, wherein the blocking net 13 can be a steel wire net; when installed, the base 1 is first installed on the rotary motor 3, and then the air extractor 2 is installed; through the blocking net 13, the installation parts and installation tools of the maintenance personnel are prevented from falling into the base 1 and then into the rotary motor 3.
[0021] The working principle of the utility model is as follows: when the rotary motor 3 is used, the motor of the air extractor 2 is started, the air extractor 2 rotates, hot air of the rotary motor 3 is extracted, the hot air passes through the base 1, the air extractor 2 and the air outlet pipe 21, and is discharged to the outside of the electric shovel; the electric shovel vibrates greatly during operation, the rotary motor 3 vibrates, the vibration is buffered through the buffer block 12, and the bolts 14 on the base 1 are prevented from loosening.
Claims
1. An anti-vibration cooling device for a swing motor of an electric shovel, characterized by comprising: It comprises a base (1) and an air extractor (2), The base (1) is a hollow box with open ends; one end of the base (1) is connected with the air inlet of the air extractor (2) through a flange, and the other end is connected with the rotary motor (3) through a flange; an opening is formed on the shell of the rotary motor (3) at the connection with the base (1); the bottom of the base (1) is welded with an upper support (41); the upper support (41) is U-shaped, and a lower support (43) is symmetrically arranged below the upper support (41); a buffer block (42) is arranged between the upper support (41) and the lower support (43), and the upper support (41), the buffer block (42) and the lower support (43) are fixed by bolts (44) and nuts; the lower support (43) is welded on a supporting block (31); the supporting block (31) is connected with the rotary motor (3).
2. The anti-vibration cooling device for a swing motor of an electric shovel according to claim 1, characterized by The air outlet of the air extractor (2) is connected with an air outlet pipe (21) through a flange.
3. The anti-vibration cooling device for a swing motor of an electric shovel according to claim 1, characterized by The end of the base (1) close to the air extractor (2) is beveled; the air extractor (2) is installed on the base (1) obliquely above the rotary motor (3).
4. The anti-vibration cooling device for a swing motor of an electric shovel according to claim 1, characterized by A blocking net (13) is fixed vertically inside the base (1).