A new type of balancing disc

Abstract

The present invention provides a new type of balancing disk. The new type of balancing disk includes a balancing disk and a cooling extension section installed on the balancing disk for improving the heat dissipation effect of the balancing disk. The balancing disk includes a disk body, a disk body rotating shaft through cavity is provided on the disk body, and a sleeve groove is provided on the disk body of the outer ring of the disk body rotating shaft through cavity, and a ventilation groove is provided at the bottom of the sleeve groove, and the ventilation groove and the sleeve groove are stepped, and the cooling extension section includes an auxiliary disk, and the auxiliary disk is provided with a coaxial sleeve cavity and an auxiliary disk rotating shaft through cavity, and the diameter of the sleeve cavity is larger than the diameter of the auxiliary disk rotating shaft through cavity, and the outer wall of the auxiliary disk is fixedly embedded with a plurality of annularly distributed and inclined heat dissipation blades, and the diameter of the disk body rotating shaft through cavity is the same as that of the auxiliary disk rotating shaft through cavity, and the balancing disk also includes comb tooth grooves, and a plurality of comb tooth grooves with the same specifications are provided on the outer ring wall of the disk body. The new type of balancing disk provided by the present invention has the advantages of balancing, sealing and heat dissipation functions.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal blower balancing disks, and in particular to a novel balancing disk. Background Art

[0002] In the manufacturing process of centrifugal blowers, there is a component called a balance disc, which is a device to balance the axial force of the centrifugal blower and also has the function of sealing the air outlet. Now we are going to add another function to this component based on the above functions. This new function is of great significance to the safe operation of the centrifugal blower.

[0003] A centrifugal blower is a tool that works on air or other gases to give the medium gas a certain amount of energy. While working, it will inevitably convert useless work into vibration, noise and temperature rise of the centrifugal blower. Temperature rise will lead to a decrease in the efficiency of the centrifugal blower, and will also cause the expansion of various parts of the body, which may cause friction between the parts due to expansion. We can avoid these adverse situations through reasonable design. However, there is one situation that is difficult to solve, that is, the bearing temperature rise caused by heat. Excessive temperature rise can shorten the life of the bearing or directly damage it. This is an issue that centrifugal blower manufacturers must pay attention to.

[0004] In the past, we considered three common ways to cool bearings: 1. Air cooling with a tail fan; 2. Water cooling with a bearing seat jacket; 3. A combination of 1 and 2 above; but the results were not ideal.

[0005] Therefore, it is necessary to provide a new type of balancing disc to solve the above technical problems. Summary of the invention

[0006] The technical problem solved by the invention is to provide a new type of balancing disk with balancing, sealing and heat dissipation functions.

[0007] In order to solve the above technical problems, the present invention provides a novel balancing disk comprising: a balancing disk and a cooling extension section installed on the balancing disk for improving the heat dissipation effect of the balancing disk.

[0008] Preferably, the balancing plate comprises a plate body, a plate body rotating shaft through cavity is formed on the plate body, a sleeve groove is formed on the plate body at the outer ring of the plate body rotating shaft through cavity, a ventilation groove is formed at the bottom of the sleeve groove, and the ventilation groove and the sleeve groove are stepped;

[0009] The balancing disc also includes comb grooves. Several comb grooves with the same specifications are opened on the outer wall of the disc body. The comb grooves on the disc body are labyrinth seals, which are sealed by injecting nitrogen.

[0010] The cooling extension section includes an auxiliary disk, on which a coaxial sleeve cavity and an auxiliary disk shaft through cavity are provided, and the diameter of the sleeve cavity is larger than the diameter of the auxiliary disk shaft through cavity, the auxiliary disk is sleeved in a sleeve groove provided in the disk body through the sleeve cavity and fixed by hot casting, a plurality of annularly distributed and obliquely arranged heat dissipating blades are fixedly engaged on the outer wall of the auxiliary disk, and the heat dissipating blades are installed on the auxiliary disk to increase the contact area with the air, so that the heat on the shaft sleeve is effectively dissipated by the heat dissipating blades after being transferred to the balancing disk, thereby greatly reducing the temperature rise of the bearing and effectively protecting the bearing.

[0011] Preferably, both side end surfaces of the heat dissipation blades are bullet-shaped, and all the heat dissipation blades are coaxial with the auxiliary disk, so no additional power is required.

[0012] Preferably, the disc body and the auxiliary disc are both made of aluminum alloy, so that the disc body and the auxiliary disc do not increase the burden on the rotor. At the same time, the good heat dissipation effect of aluminum alloy further improves the heat dissipation rate of the disc body and the auxiliary disc.

[0013] Preferably, the diameter of the disk body rotating shaft through cavity is the same as that of the auxiliary disk rotating shaft through cavity, so as to facilitate synchronous sleeve connection to the shaft sleeve.

[0014] Compared with the related art, the new balancing disc provided by the present invention has the following beneficial effects:

[0015] In the present invention, since the disc body is additionally provided with an auxiliary disc, the contact area between the entire balancing disc and the shaft is increased, and the heat conduction efficiency is enhanced. The disc body and the auxiliary disc increase the thickness of the shaft sleeve, and the heat dissipation effect is further increased.

[0016] The invention increases the contact area with the air because the auxiliary disk is equipped with heat dissipating blades, so that the heat on the shaft sleeve is effectively dissipated by the heat dissipating blades after being transferred to the balance disk, thereby greatly reducing the temperature rise of the bearing and effectively protecting the bearing, thus providing a solid foundation for the safe operation of the centrifugal blower.

[0017] The comb tooth grooves on the disc body of the present invention are labyrinth seals, which are sealed by injecting nitrogen into the rotating shaft, thereby enhancing the sealing effect of the balancing disc;

[0018] All the heat dissipation blades of the present invention are coaxial with the auxiliary disk, so no additional power is required. At the same time, reasonable angle settings are adopted when designing and installing the heat dissipation blades to reduce the wind noise of the centrifugal blower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a preferred embodiment of the novel balancing disk provided by the present invention;

[0020] Figure 2 for Figure 1 The structural schematic diagram of the balancing disk shown;

[0021] Figure 3 for Figure 1 The structural schematic diagram of the extension section shown;

[0022] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure of the extension section shown.

[0023] Numbers in the figure: 1, balancing plate, 11, plate body, 12, plate body shaft cavity, 13, sleeve groove, 14, ventilation groove, 15, comb groove, 2, cooling extension section, 21, auxiliary plate, 22, heat dissipation blades, 23, sleeve cavity, 24, auxiliary plate shaft cavity. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the novel balancing disk provided by the present invention; Figure 2 for Figure 1 The structural schematic diagram of the balancing disk shown; Figure 3 for Figure 1 The structural schematic diagram of the extension section shown; Figure 4 for Figure 3 The three-dimensional structural diagram of the extension section is shown. The novel balancing plate comprises: a balancing plate 1 and a cooling extension section 2.

[0026] In the specific implementation process, Figure 1 , Figure 2 and Figure 3 As shown, a cooling extension section 2 for improving the heat dissipation effect of the balancing disk 1 is installed on the balancing disk 1. The balancing disk 1 includes a disk body 11, a disk body rotating shaft through cavity 12 is provided on the disk body 11, and a sleeve groove 13 is provided on the disk body 11 of the outer circle of the disk body rotating shaft through cavity 12, and a ventilation groove 14 is provided at the bottom of the sleeve groove 13, and the ventilation groove 14 and the sleeve groove 13 are stepped, and the cooling extension section 2 includes an auxiliary disk 21, a coaxial sleeve cavity 23 and an auxiliary disk rotating shaft through cavity 24 are provided on the auxiliary disk 21, and the diameter of the sleeve cavity 23 is larger than the diameter of the auxiliary disk rotating shaft through cavity 24, and a plurality of annularly distributed and obliquely arranged heat dissipation blades 22 are fixedly embedded on the outer wall of the auxiliary disk 21, and the diameter of the disk body rotating shaft through cavity 12 is the same as that of the auxiliary disk rotating shaft through cavity 24.

[0027] It should be noted that the auxiliary disk 21 is sleeved in the sleeve groove 13 opened in the disk body 11 through the opened sleeve cavity 23 and fixed by hot casting, and the diameter of the disk body shaft cavity 12 and the auxiliary disk shaft cavity 24 are the same, so the combined disk body 11 and the auxiliary disk 21 are sleeved on the shaft sleeve of the centrifugal blower through the shaft cavity. Since the disk body 11 is additionally provided with the auxiliary disk 21, the contact area between the entire balancing disk and the shaft is increased, and the heat conduction efficiency is enhanced, and the combined disk body 11 and the auxiliary disk 21 increase the thickness of the sleeve, further increasing the heat dissipation effect, and the auxiliary disk 21 is equipped with heat dissipation blades 22 to increase the contact area with the air, so the heat on the sleeve is transferred to the balancing disk and then effectively dissipated by the heat dissipation blades 22, thereby greatly reducing the temperature rise of the bearing and effectively protecting the bearing, so that the safe operation of the centrifugal blower has a solid foundation and the operation is safer.

[0028] refer to Figure 2 As shown, the balancing disc 1 further includes comb grooves 15. A plurality of comb grooves 15 with the same specifications are provided on the outer wall of the disc body 11. The comb grooves 15 on the disc body 11 are labyrinth seals and are sealed by injecting nitrogen.

[0029] refer to Figure 4 As shown, both side end faces of the heat dissipation blade 22 are bullet-shaped, and all the heat dissipation blades 22 are coaxial with the auxiliary disk 21, so no additional power is required. At the same time, reasonable angle settings are adopted when designing and installing the heat dissipation blades 22 to reduce the wind noise of the centrifugal blower.

[0030] The disc body 11 and the auxiliary disc 21 are both made of aluminum alloy, so that the disc body 11 and the auxiliary disc 21 do not increase the burden on the rotor. At the same time, the good heat dissipation effect of the aluminum alloy further improves the heat dissipation rate of the disc body 11 and the auxiliary disc 21.

[0031] The working principle of the new balancing disc provided by the present invention is as follows:

[0032] The auxiliary disc 21 is sleeved in the sleeve groove 13 opened in the disc body 11 through the sleeve cavity 23 and fixed by hot casting. The disc body shaft cavity 12 and the auxiliary disc shaft cavity 24 have the same diameter. Therefore, the combined disc body 11 and the auxiliary disc 21 are sleeved on the shaft sleeve of the centrifugal blower through the shaft cavity. Since the disc body 11 is additionally provided with the auxiliary disc 21, the contact area between the entire balance disc and the shaft is increased, and the heat conduction efficiency is enhanced. The combined disc body 11 and the auxiliary disc 21 increase the thickness of the shaft sleeve, further increasing the heat dissipation effect. The auxiliary disc 21 is equipped with heat dissipation blades 22 to increase the contact area with the air. After the heat on the sleeve is transferred to the balance disk, it is effectively dissipated by the heat dissipation blades 22, thereby greatly reducing the temperature rise of the bearing and effectively protecting the bearing, providing a solid foundation for the safe operation of the centrifugal blower and making the operation safer. The comb grooves 15 on the disk body 11 are labyrinth seals, which are sealed by injecting nitrogen. Since all the heat dissipation blades 22 are coaxial with the auxiliary disk 21, no additional power is required. At the same time, reasonable angles are set when designing and installing the heat dissipation blades 22, which reduces the wind noise of the centrifugal blower. This equipment does not require maintenance and eliminates the troubles of water cooling pipes, antifreeze, and leak prevention.

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0034] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new type of balancing disc, characterized in that: include: Balance plate (1); A cooling extension section (2) for improving the heat dissipation effect of the balancing plate (1), the cooling extension section (2) being installed on the balancing plate (1); The balancing disk (1) comprises a disk body (11), the disk body (11) is provided with a disk body rotating shaft through cavity (12), and a sleeve groove (13) is provided on the disk body (11) at the outer ring of the disk body rotating shaft through cavity (12), and a ventilation groove (14) is provided at the bottom of the sleeve groove (13), and the ventilation groove (14) and the sleeve groove (13) are in a stepped shape; The balancing disc (1) further comprises comb tooth grooves (15), wherein a plurality of comb tooth grooves (15) of the same specification are arranged on the outer wall of the disc body (11); The cooling extension section (2) comprises an auxiliary disk (21), the auxiliary disk (21) is provided with a coaxial sleeve cavity (23) and an auxiliary disk rotating shaft through cavity (24), and the diameter of the sleeve cavity (23) is larger than the diameter of the auxiliary disk rotating shaft through cavity (24). The auxiliary disk (21) is sleeved in a sleeve groove (13) provided in the disk body (11) through the sleeve cavity (23) and is fixed by hot casting. The outer wall of the auxiliary disk (21) is fixedly embedded with a plurality of annularly distributed and inclined heat dissipation blades (22).

2. The new balancing disc according to claim 1 is characterized in that: Both side end surfaces of the heat dissipation blades (22) are bullet-shaped, and all the heat dissipation blades (22) are coaxial with the auxiliary disk (21).

3. The new balancing disc according to claim 2 is characterized in that: The disc body (11) and the auxiliary disc (21) are both made of aluminum alloy.

4. The new balancing disc according to claim 3 is characterized in that: The disk body rotating shaft through cavity (12) and the auxiliary disk rotating shaft through cavity (24) have the same diameter.

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