Long-shaft vertical transmission system

Abstract

The invention discloses a long-shaft vertical transmission system, which comprises a motor fixed on a bracket, and a truss fixed on the bracket; the transmission shaft is vertically and rotationally connected to the support, a first bearing seat used for being connected with the transmission shaft is fixed to the support, the transmission shaft is rotationally connected to the first bearing seat through a bearing, an output shaft of the motor is in transmission connection with the bottom end of the transmission shaft, and an impeller is fixed to the top end of the transmission shaft; the diagonal draw bar assemblies are arranged on the periphery of the transmission shaft, one ends of the diagonal draw bar assemblies are fixedly connected with the truss, the other ends of the diagonal draw bar assemblies are jointly connected with a second bearing seat, the second bearing seat is located at the top of the outer side wall of the transmission shaft, and a bearing is in transition connection between the second bearing seat and the transmission shaft; the power station condenser fan transmission shaft is simple in structure, stable operation of the transmission shaft is guaranteed through the multiple sets of diagonal draw bar assemblies, and the power station condenser fan transmission shaft is suitable for fan transmission outside a power station condenser.

Description

Technical Field

[0001] The invention belongs to the technical field of transmission systems, and in particular relates to a long-axis vertical transmission system. Background Art

[0002] The power station condenser needs to be used with a large aluminum alloy air-cooling fan. The air cooler requires the fan to be induced draft, the fan impeller is located above the fin tube and the bellows, the height difference between the impeller rotation plane and the motor bracket is 2280mm, and the large diameter and ultra-long drive shaft condenser air-cooling fan requires the fan drive system to have sufficient strength, rigidity and stability, and be able to absorb and isolate vibration to prevent resonance. The drive system not only bears the static load of the full weight of the fan, but also the dynamic load and aerodynamic load caused by the unbalanced inertial force during the rotation of the fan. The conventional drive layout can no longer meet the use requirements.

[0003] Therefore, how to provide a long-axis vertical transmission system for inducing air for a power station condenser and providing fan power is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] In view of this, the present invention provides a long-axis vertical transmission system, which will be used in conjunction with a power station condenser and a large air-cooling fan.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a long-axis vertical transmission system, comprising:

[0006] A motor, wherein the motor is fixed on a bracket, and a truss is fixed on the bracket;

[0007] A transmission shaft, the transmission shaft is vertically rotatably connected to the bracket, a first bearing seat for connecting the transmission shaft is fixed on the bracket, the transmission shaft is rotatably connected to the first bearing seat through a bearing, the output shaft of the motor is transmission-connected to the bottom end of the transmission shaft, and an impeller is fixed to the top end of the transmission shaft;

[0008] A diagonal tie rod assembly, wherein the diagonal tie rod assembly has multiple groups and is arranged around the transmission shaft, one end of the diagonal tie rod assembly is fixedly connected to the truss, and the other ends of the multiple groups of diagonal tie rod assemblies are commonly connected to a second bearing seat, the second bearing seat is located at the top of the outer side wall of the transmission shaft, and a bearing is transitionally connected between the second bearing seat and the transmission shaft; the first bearing seat and the second bearing seat are coaxially arranged.

[0009] The beneficial effects of the present invention are as follows: a motor is used to provide power to the impeller on the transmission shaft. Since the transmission shaft is installed as a vertical long axis, the vibration generated by the high-speed rotation of the impeller will increase the impact on the operation of the transmission shaft, making it easy to break, shortening the life of the transmission shaft, and requiring frequent inspection and maintenance. Therefore, multiple groups of diagonal tie rod assemblies are arranged on the truss, and the multiple groups of diagonal tie rod assemblies are commonly connected to the second bearing seat. The second bearing seat cooperates with the bearing to stabilize the top rotation effect of the transmission shaft and reduce the impact of the vibration of the impeller on the transmission shaft. The fan transmission system of the air-cooling unit of the present invention can achieve the effects of being stable, easy to install, and maintenance-free for a long time.

[0010] Preferably, the length of the transmission shaft is 2m to 3m, a pulley is fixed to the bottom end of the transmission shaft, and a belt is connected between the output shaft of the motor and the pulley.

[0011] The resulting technical effect is: the longer the transmission shaft, the greater the increase in its vibration. The use of belt drive can reduce the vibration effect during motor transmission, with low noise and easy maintenance.

[0012] Preferably, the bearings on the first bearing seat and the second bearing seat are double-row spherical roller bearings.

[0013] The resulting technical effect is that the double-row spherical roller bearing can overcome the angular phase displacement of the long axis.

[0014] Preferably, a connection seat is fixed to the connection position of the truss corresponding to the diagonal brace assembly, and a bolt with a hinged hole for connecting the diagonal brace assembly is connected to the connection seat.

[0015] The resulting technical effect is: by using the connection seat to establish a connection relationship with the inclined tie rod assembly, multiple sets of inclined tie rod assemblies can ensure that the transmission shaft is perpendicular to the base plane, so that the transmission shaft always ensures a coaxial rotation effect. Polarization will not be caused by the rotation of the impeller or fan.

[0016] Preferably, each group of the inclined tie rod assemblies includes two connectors with holes, positive and negative thread adjustment sleeves and two tie rods. The proximal ends of the two tie rods are connected by the positive and negative thread adjustment sleeves, and the distal ends of the two tie rods are respectively connected to the connectors with holes. A hinged hole bolt is connected between the connectors with holes and the connecting seat.

[0017] The resulting technical effect is that the overall length of the inclined rod assembly can be adjusted using the positive and negative thread adjustment sleeve, which facilitates the adjustment of the horizontality of the second bearing seat, thereby achieving a coaxial installation effect of the first bearing seat and the second bearing seat, thereby realizing the smooth operation of the impeller.

[0018] Preferably, a support tube is fixed between the first bearing seat and the second bearing seat, and the transmission shaft is rotatably located in the support tube.

[0019] The resulting technical effect is that the support tube is used to protect the transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a long-axis vertical transmission system of the present invention;

[0021] Figure 2 This is an impeller installation diagram of a long-axis vertical transmission system of the present invention;

[0022] Figure 3 This is an installation diagram of a diagonal tie rod assembly of a long-axis vertical transmission system of the present invention;

[0023] Figure 4 This is a transmission shaft installation diagram of a long-axis vertical transmission system of the present invention.

[0024] 1 motor, 2 bracket, 3 truss, 4 transmission shaft, 5 first bearing seat, 6 second bearing seat, 7 impeller, 8 inclined tie rod assembly, 801 hole connector, 802 positive and negative thread adjustment sleeve, 803 tie rod, 9 bearing, 10 pulley, 11 belt, 12 connecting seat, 13 hinged hole bolt, 14 support tube. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See the attached Figures 1 to 4 According to an embodiment of the present invention, a long-axis vertical transmission system comprises:

[0027] Motor 1, the motor 1 is fixed on a bracket 2, and a truss 3 is fixed on the bracket 2;

[0028] The transmission shaft 4 is vertically rotatably connected to the bracket 2, a first bearing seat 5 for connecting the transmission shaft 4 is fixed on the bracket 2, the transmission shaft 4 is rotatably connected to the first bearing seat 5 through a bearing 9, the output shaft of the motor 1 is transmission-connected to the bottom end of the transmission shaft 4, and an impeller 7 is fixed to the top end of the transmission shaft 4;

[0029] There are four diagonal tie rod assemblies 8 and they are arranged around the transmission shaft 4. One end of the diagonal tie rod assembly 8 is fixedly connected to the truss 3. The other ends of the four diagonal tie rod assemblies 8 are commonly connected to the second bearing seat 6. The second bearing seat 6 is located at the top of the outer wall of the transmission shaft 4. A bearing 9 is transitionally connected between the second bearing seat 6 and the transmission shaft 4. The first bearing seat 5 and the second bearing seat 6 are coaxially arranged.

[0030] In other embodiments, the length of the transmission shaft 4 is 2.545 m, a pulley 10 is fixed to the bottom end of the transmission shaft 4 , and a belt 11 is connected between the output shaft of the motor 1 and the pulley 10 .

[0031] In some other specific embodiments, the bearings 9 on the first bearing seat 5 and the second bearing seat 6 are both double-row spherical roller bearings.

[0032] In some other embodiments, a connection seat 12 is fixed at the connection position of the truss 3 corresponding to the diagonal brace assembly 8, and a tapped hole bolt 13 for connecting the diagonal brace assembly 8 is connected to the connection seat 12.

[0033] In some other specific embodiments, each group of inclined tie rod assemblies 8 includes two perforated connectors 801, positive and negative thread adjustment sleeves 802 and two tie rods 803. The proximal ends of the two tie rods 803 are connected by the positive and negative thread adjustment sleeves 802, and the distal ends of the two tie rods 803 are respectively connected to the perforated connectors 801. A hinged hole bolt 13 is connected between the perforated connector 801 and the connecting seat 12.

[0034] In some other specific embodiments, a support tube 14 is fixed between the first bearing seat 5 and the second bearing seat 6 , and the transmission shaft 4 is rotatably located in the support tube 14 .

[0035] In order to ensure the smooth operation of the transmission shaft, four inclined tie rod assemblies with adjustable length are used in conjunction with the second bearing seat to ensure the stability of the long axis and the verticality requirements with the base surface.

[0036] When in use, fix the connecting seat on the condenser truss, connect the bottom end of the diagonal tie rod assembly with the hinged hole bolts, and connect the top end of the diagonal tie rod assembly with the second bearing seat through the hinged hole bolts. There are four groups of diagonal tie rod assemblies, which are circumferentially distributed around the transmission shaft. The operating state of the transmission shaft is stabilized by external support. The diagonal tie rod assembly plays the role of pre-tightening the tension beam and is firmly connected to the truss.

[0037] The fan is installed in the form of motor mounted on a bracket and fixed as a whole on the user's truss, the pulley at the transmission shaft end is directly connected to the motor output end, the impeller is installed on the top of the transmission shaft, the impeller is placed on the straight section of the wind tube, and the transmission system is fixed on the truss through a diagonal support.

[0038] As for the device and the method of use disclosed in the embodiment, since they correspond to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A long-axis vertical transmission system, It is characterized in that include: A motor (1), wherein the motor (1) is fixed on a bracket (2), and a truss (3) is fixed on the bracket (2); A transmission shaft (4), the transmission shaft (4) being vertically rotatably connected to the bracket (2), a first bearing seat (5) for connecting the transmission shaft (4) being fixed on the bracket (2), the transmission shaft (4) being rotatably connected to the first bearing seat (5) via a bearing (9), the output shaft of the motor (1) being transmission-connected to the bottom end of the transmission shaft (4), and an impeller (7) being fixed to the top end of the transmission shaft (4); A diagonal tie rod assembly (8), wherein the diagonal tie rod assembly (8) comprises multiple groups and is arranged around the transmission shaft (4), one end of the diagonal tie rod assembly (8) is fixedly connected to the truss (3), and the other ends of the multiple groups of the diagonal tie rod assemblies (8) are commonly connected to a second bearing seat (6), the second bearing seat (6) is located at the top of the outer wall of the transmission shaft (4), and a bearing (9) is transitionally connected between the second bearing seat (6) and the transmission shaft (4); the first bearing seat (5) and the second bearing seat (6) are coaxially arranged.

2. A long-axis vertical transmission system according to claim 1, It is characterized in that The length of the transmission shaft (4) is 2m to 3m, a pulley (10) is fixed to the bottom end of the transmission shaft (4), and a belt (11) is connected between the output shaft of the motor (1) and the pulley (10).

3. A long-axis vertical transmission system according to claim 2, It is characterized in that The bearings (9) on the first bearing seat (5) and the second bearing seat (6) are both double-row spherical roller bearings.

4. A long-axis vertical transmission system according to claim 1, It is characterized in that A connection seat (12) is fixed at the connection point of the truss (3) corresponding to the inclined brace assembly (8), and a hinged hole bolt (13) for connecting the inclined brace assembly (8) is connected to the connection seat (12).

5. A long-axis vertical transmission system according to claim 4, It is characterized in that Each group of the inclined tie rod assembly (8) includes two holed connectors (801), a positive and negative thread adjustment sleeve (802) and two tie rods (803). The proximal ends of the two tie rods (803) are connected via the positive and negative thread adjustment sleeve (802), and the distal ends of the two tie rods (803) are respectively connected to the holed connectors (801). A hinged hole bolt (13) is connected between the holed connector (801) and the connecting seat (12).

6. A long-axis vertical transmission system according to claim 1, It is characterized in that A support tube (14) is fixed between the first bearing seat (5) and the second bearing seat (6), and the transmission shaft (4) is rotatably located in the support tube (14).

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