Low energy consumption high density electric pole centrifuge
By using inertial flywheel energy storage and inner and outer ring sealing design, combined with a double-layer vibration reduction structure, the problems of high energy consumption and poor sealing of traditional centrifuges have been solved, realizing the production of poles with low energy consumption and high density.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU HUAZHAN MASCH MFG CO LTD
- Filing Date
- 2025-06-28
- Publication Date
- 2026-06-09
Smart Images
Figure CN224334635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of centrifuge technology, and in particular to a low-energy-consumption, high-density centrifuge for electric poles. Background Technology
[0002] The low-energy, high-density centrifuge for utility poles is a centrifugal molding equipment specifically designed for producing concrete utility poles. It uses centrifugal force generated by high-speed rotation to evenly distribute concrete on the inner wall of the steel mold, expelling excess water and air bubbles, thus achieving a high-density concrete structure and improving the strength, impermeability, and durability of the pole.
[0003] The following problems exist with centrifuges used in traditional pole production:
[0004] 1) High energy consumption: The drive system mostly uses a full-power motor to run continuously, resulting in serious energy waste during the centrifugal start-up phase;
[0005] 2) Poor sealing: The spindle and the cavity are sealed with ordinary rubber rings, which wear out quickly when rotating at high speed, resulting in a short service life and requiring frequent replacement and maintenance. Therefore, we propose a centrifuge for poles with low energy consumption and high density. Utility Model Content
[0006] In view of the problems of high energy consumption and poor sealing of existing centrifuges used for pole production, this utility model is proposed.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] A centrifuge for low-energy-consumption, high-density utility poles includes a frame and a drive motor. The output shaft of the drive motor is connected to an inertial flywheel via an electromagnetic clutch. A main shaft is mounted on the output shaft of the drive motor, and the main shaft is coaxially fixed with the inertial flywheel.
[0009] A rotating sleeve is fixedly mounted on the main shaft. A spiral groove is formed on the outer surface of the rotating sleeve. A sealing assembly is installed between the rotating sleeve and the housing of the drive motor. The sealing assembly includes an inner ring and an outer ring disposed on the rotating sleeve.
[0010] As a technical solution for a low-energy-consumption, high-density centrifuge for utility poles according to this utility model, the spiral groove is a bidirectional spiral structure, the spiral angle of the spiral groove is 10°-25°, and the groove depth is 0.4-1.5mm.
[0011] As a technical solution for a low-energy-consumption, high-density centrifuge for utility poles according to this utility model, the inner ring and the rotating sleeve form a dynamic sealing pair, and the contact surface between the inner ring and the rotating sleeve is coated with a nano-wear-resistant coating.
[0012] As a technical solution for a low-energy-consumption, high-density centrifuge for utility poles according to this utility model, wherein: the outer ring forms a static seal with the housing of the drive motor, and the inner cavity of the outer ring has an O-ring seal.
[0013] As a technical solution of the low-energy-consumption, high-density centrifuge for utility poles described in this utility model, wherein: a wear-resistant alloy layer is inlaid on the outer ring of the inner ring, and the wear-resistant alloy layer is located between the contact surface of the inner ring and the outer ring.
[0014] As a technical solution for a low-energy-consumption, high-density centrifuge for utility poles according to this utility model, the outer ring of the outer ring has a 15-degree conical surface that matches the inner conical hole of the drive motor housing.
[0015] As a technical solution of the low-energy-consumption, high-density centrifuge for utility poles described in this utility model, the frame includes a double-layer vibration-damping steel base frame, and a damping rubber pad is installed on the top layer of the double-layer vibration-damping steel base frame.
[0016] Compared with the prior art, the present invention has at least the following beneficial effects:
[0017] 1. In this utility model, by starting the drive motor, the output shaft of the drive motor drives the main shaft to rotate, and the main shaft drives the inertial flywheel to rotate. At the same time, the start and stop are controlled by the electromagnetic clutch to achieve flexible power transmission. During the centrifugal start-up phase, the inertial flywheel stores kinetic energy to reduce the instantaneous load on the drive motor, thereby achieving the effect of reducing energy loss.
[0018] 2. This utility model, by adopting the design of inner ring dynamic seal and outer ring static seal, generates a dynamic pressure effect in the spiral groove during operation, and the pressure distribution on the sealing surface is uniform to ensure the sealing performance of the sealing area. At the same time, the O-ring seal can enhance the elastic compensation capability of the static seal to adapt to the deformation caused by temperature fluctuations, thereby ensuring the sealing performance between the spindle and the cavity, and extending the service life of the seal.
[0019] 3. This utility model, by setting up a frame consisting of a double-layer vibration-damping steel base and damping rubber pads, can reduce vibration acceleration and equipment vibration energy consumption through the combination of the double-layer vibration-damping steel base and damping rubber pads. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0022] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.
[0023] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0024] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point B.
[0025] Explanation of reference numerals in the attached figures:
[0026] In the diagram: 101, double-layer vibration-damping steel base frame; 102, damping rubber pad; 2, drive motor; 3, main shaft; 4, inertia flywheel; 5, rotating sleeve; 501, spiral groove; 6, inner ring; 601, wear-resistant alloy layer; 7, outer ring; 701, O-ring seal. Detailed Implementation
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0028] Reference Figures 1-4 A low-energy-consumption, high-density centrifuge for utility poles is provided. This low-energy-consumption, high-density centrifuge for utility poles includes a frame and a drive motor 2. The output shaft of the drive motor 2 is connected to an inertial flywheel 4 via an electromagnetic clutch. A main shaft 3 is mounted on the output shaft of the drive motor 2. The main shaft 3 and the inertial flywheel 4 are coaxially fixed. In application, the electromagnetic clutch enables flexible power transmission. During the centrifugal start-up phase, the inertial flywheel 4 stores kinetic energy to reduce the instantaneous load on the drive motor 2.
[0029] A rotating sleeve 5 is fixedly installed on the main shaft 3. A spiral groove 501 is opened on the outer surface of the rotating sleeve 5. A sealing assembly is installed between the rotating sleeve 5 and the housing of the drive motor 2. The sealing assembly includes an inner ring 6 and an outer ring 7 on the rotating sleeve 5. In application, the problems of fast wear and poor sealing when rotating at high speed can be solved by the dynamic sealing of the inner ring 6 and the static sealing of the outer ring 7.
[0030] Reference Figure 1 and Figure 2 The spiral groove 501 has a bidirectional spiral structure with a spiral angle of 10°-25° and a groove depth of 0.4-1.5mm. In application, the bidirectional spiral groove 501 design can form a uniform hydrodynamic oil film, reducing the friction between the rotating sleeve 5 and the inner ring 6. At the same time, the 10°-25° spiral angle and the 0.4-1.5mm groove depth balance the sealing effect and mechanical strength, while reducing the risk of leakage.
[0031] Reference Figure 3 and Figure 4 The inner ring 6 and the rotating sleeve 5 form a dynamic sealing pair, and the contact surface between the inner ring 6 and the rotating sleeve 5 is coated with a nano wear-resistant coating. The outer ring 7 and the housing of the drive motor 2 form a static seal, and the inner cavity of the outer ring 7 has an O-ring seal 701. The outer ring of the inner ring 6 is inlaid with a wear-resistant alloy layer 601, and the wear-resistant alloy layer 601 is located between the contact surface of the inner ring 6 and the outer ring 7. In application, the nano wear-resistant coating reduces the friction coefficient of the dynamic sealing pair. The wear-resistant alloy layer 601, together with the O-ring seal 701, forms a three-level sealing structure to ensure sealing performance and extend the service life of the seal.
[0032] Reference Figure 3 and Figure 4 The outer ring of the outer ring 7 has a 15-degree conical surface that matches the inner conical hole of the drive motor 2 housing. In application, the 15-degree conical angle fit can effectively eliminate the influence of thermal deformation.
[0033] Reference Figure 1 and Figure 3 The frame includes a double-layer vibration-damping steel base frame 101, and a damping rubber pad 102 is installed on the top layer of the double-layer vibration-damping steel base frame 101. In application, the cooperation between the double-layer vibration-damping steel base frame 101 and the damping rubber pad 102 can reduce vibration acceleration and equipment vibration energy consumption.
[0034] The working principle of this utility model is as follows: by starting the drive motor 2, the output shaft of the drive motor 2 drives the main shaft 3 to rotate, and the main shaft 3 drives the inertial flywheel 4 to rotate. At the same time, the start and stop are controlled by the electromagnetic clutch to achieve flexible power transmission. During the centrifugal start-up phase, the inertial flywheel 4 stores kinetic energy to reduce the instantaneous load on the drive motor 2, thereby achieving the effect of reducing energy loss.
[0035] During the aforementioned period, the spiral groove 501 generates a dynamic pressure effect, and the pressure distribution on the sealing surface is uniform to ensure the sealing performance of the sealing area. At the same time, the O-ring seal 701 can enhance the elastic compensation capability of the static seal to adapt to the deformation caused by temperature fluctuations, thereby ensuring the sealing performance between the spindle 3 and the cavity, extending the service life of the seal, and solving the problems of rapid wear and poor sealing performance during traditional high-speed rotation.
[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A centrifuge for low-energy-consumption, high-density utility poles, comprising a frame and a drive motor (2), characterized in that: The output shaft of the drive motor (2) is connected to the inertial flywheel (4) via an electromagnetic clutch. A main shaft (3) is mounted on the output shaft of the drive motor (2). The main shaft (3) is coaxially fixed with the inertial flywheel (4). A rotating sleeve (5) is fixedly installed on the main shaft (3). A spiral groove (501) is opened on the outer surface of the rotating sleeve (5). A sealing assembly is installed between the rotating sleeve (5) and the housing of the drive motor (2). The sealing assembly includes an inner ring (6) and an outer ring (7) provided on the rotating sleeve (5).
2. The centrifuge for low-energy-consumption, high-density utility poles according to claim 1, characterized in that: The spiral groove (501) is a bidirectional spiral structure, with a spiral angle of 10°-25° and a groove depth of 0.4-1.5mm.
3. The centrifuge for low-energy-consumption, high-density utility poles according to claim 1, characterized in that: The inner ring (6) and the rotating sleeve (5) form a dynamic sealing pair, and the contact surface between the inner ring (6) and the rotating sleeve (5) is coated with a nano wear-resistant coating.
4. The centrifuge for low-energy-consumption, high-density utility poles according to claim 1, characterized in that: The outer ring (7) forms a static seal with the housing of the drive motor (2), and the inner cavity of the outer ring (7) has an O-ring (701).
5. The centrifuge for low-energy-consumption, high-density utility poles according to claim 1, characterized in that: The outer ring of the inner ring (6) is inlaid with a wear-resistant alloy layer (601), and the wear-resistant alloy layer (601) is located between the contact surfaces of the inner ring (6) and the outer ring (7).
6. The centrifuge for low-energy-consumption, high-density utility poles according to claim 4, characterized in that: The outer ring (7) has a 15-degree conical surface that matches the inner conical hole of the drive motor (2) housing.
7. The centrifuge for low-energy-consumption, high-density utility poles according to any one of claims 1-6, characterized in that: The frame includes a double-layer vibration-damping steel base frame (101), and a damping rubber pad (102) is installed on the top layer of the double-layer vibration-damping steel base frame (101).