A brake holding and disc turning device

Abstract

The utility model discloses a kind of embrace brake disc device, including base, the base middle part is equipped with shaft hole, the shaft hole is used to pass through main shaft, the shaft hole is equipped with second bearing, the second bearing outer ring is equipped with worm wheel, the main shaft passes through second bearing inner ring, the worm wheel is engaged with worm gear, the worm gear is horizontally set in base top, both ends of the worm gear are rotatably connected in base by first bearing, one end of the worm gear is drivingly connected with motor output shaft, the motor is fixed in base, the worm wheel is equipped with embrace brake assembly, and the embrace brake assembly is used to fixedly connect main shaft and worm wheel;The utility model discloses the embrace brake disc device, adopt embrace brake assembly, can be embraced tightly when stopping machine and support main shaft, so that worm wheel and main shaft are fixed together, and cooperate the self-locking effect of worm wheel worm gear, can prevent main shaft rotation and deformation, and by motor drive worm gear rotation, drive worm wheel and main shaft rotation, realize the disc operation of main shaft after long time parking.

Description

Technical Field

[0001] This utility model relates to fan technology, specifically a brake-operated turning device. Background Technology

[0002] A fan is a machine that uses input mechanical energy to increase gas pressure and discharge gas. It is a type of driven fluid machinery. Fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling, as well as for ventilation and induced draft in boilers and industrial furnaces.

[0003] Existing wind turbines, especially large ones, will deform their main shafts due to gravity after being parked for a long time. Moreover, the rotation of the wind turbines during maintenance or the manual turning operation before restarting them after shutdown are all manually driven. When dealing with large wind turbines, the main shaft is difficult to rotate, which is extremely labor-intensive and greatly affects the efficiency of maintenance or turning. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a brake-operated turning device that can grip and support the main shaft when the machine is stopped, preventing the main shaft from rotating and deforming, and enabling turning operations on the main shaft after a long period of parking.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a brake-operated turning device, comprising a base, a shaft hole in the middle of the base for a main shaft to pass through, a second bearing in the shaft hole, a worm gear sleeved on the outer ring of the second bearing, the main shaft passing through the inner ring of the second bearing, the worm gear meshing with a worm, the worm being horizontally positioned on the top of the base, both ends of the worm being rotatably connected to the base via first bearings, one end of the worm being drively connected to the output shaft of a motor, the motor being fixed to the base, and a brake assembly on the worm gear for fixing the main shaft and the worm gear; The brake assembly includes a fixed rod and a connecting rod, both of which are horizontally mounted on the worm gear. Support rods are hinged to both ends of the fixed rod. Adjustment units are provided at the top of the support rod and the end of the connecting rod. The adjustment units are used to adjust the distance between the support rod and the main shaft. A brake block is provided in the middle of the support rod facing the main shaft.

[0006] Preferably, the base has a mounting plate at its bottom, and the mounting plate has a plurality of anchor bolts, which fix the mounting plate to the ground.

[0007] Preferably, both the middle part of the fixed rod and the middle part of the connecting rod are provided with support bolts, which are used to fix the fixed rod or the connecting rod to the worm gear.

[0008] Preferably, the adjustment unit includes an adjusting bolt and a support spring. The adjusting bolt is threaded onto the end of the support rod. One end of the support spring is fixed to the connecting rod, and the other end of the support spring is fixed to the fixing plate. The end of the adjusting bolt is rotatably connected to the fixing plate.

[0009] Preferably, the brake block is fixed to the middle of the support rod by fastening bolts.

[0010] Preferably, the brake block is provided with a friction plate facing the main shaft, the friction plate is arc-shaped, and the friction plate is in contact with the outer wall of the main shaft.

[0011] In summary, this utility model achieves the following technical effects: The brake-operated turning device of this utility model adopts a brake assembly, which can clamp and support the main shaft when the machine is stopped, so that the worm wheel is fixed together with the main shaft. With the self-locking effect of the worm wheel and worm, the main shaft can be prevented from rotating and deforming. Moreover, the worm is driven by a motor to rotate, which in turn drives the worm wheel and the main shaft to rotate, so as to realize the turning operation of the main shaft after a long period of parking. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the brake-operated turning gear device of this utility model; Figure 2 This is a schematic diagram of the connection structure between the worm gear and the worm in the brake-operated turning gear device of this utility model; Figure 3 This is a schematic diagram of the structure of the first and second bearings of the brake-operated turning gear device of this utility model; Figure 4 This is a schematic diagram of the brake assembly of the brake-operated turning gear device of this utility model; Figure 5 This is a schematic diagram of the structure of the brake block of the brake-operated turning gear device of this utility model; Explanation of reference numerals in the accompanying drawings: 1. Base; 2. Motor; 3. Worm gear; 31. First bearing; 4. Worm wheel; 41. Second bearing; 5. Brake assembly; 51. Fixing rod; 52. Support rod; 53. Fastening bolt; 54. Brake block; 55. Adjusting bolt; 56. Support spring; 57. Connecting rod; 58. Support bolt; 59. Friction plate; 6. Main shaft. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings.

[0014] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0019] Example 1: like Figure 1-3As shown, a brake-operated turning device includes a base 1. The base 1 has a shaft hole in the middle for a main shaft 6 to pass through. The shaft hole is provided with a second bearing 41. A worm gear 4 is sleeved on the outer ring of the second bearing 41. The main shaft 6 passes through the inner ring of the second bearing 41. The worm gear 4 meshes with a worm 3. The worm 3 is horizontally arranged on the top of the base 1. Both ends of the worm 3 are rotatably connected to the base 1 through a first bearing 31. One end of the worm 3 is connected to the output shaft of a motor 2. The motor 2 is fixed to the base 1. The worm gear 4 is provided with a brake assembly 5 for fixing the main shaft 6 and the worm gear 4. The inner diameter of the inner ring of the first bearing 31 and the inner diameter of the shaft hole are both larger than the diameter of the main shaft 6 to avoid friction between the main shaft 6 and the first bearing 31 and the shaft hole.

[0020] like Figure 4 As shown, the brake assembly 5 includes a fixed rod 51 and a connecting rod 57. Both the fixed rod 51 and the connecting rod 57 are horizontally arranged on the worm gear 4. Both ends of the fixed rod 51 are hinged to support rods 52. The top of the support rod 52 and the end of the connecting rod 57 are provided with adjustment units. The adjustment units are used to adjust the distance between the support rod 52 and the main shaft 6. The middle of the support rod 52 is provided with a brake block 54 facing the main shaft 6.

[0021] The brake-operated turning device in this embodiment uses a brake assembly 5, which can clamp and support the main shaft 6 when the machine is stopped, so that the worm wheel 4 is fixed together with the main shaft 6. With the self-locking effect of the worm wheel 4 and the worm 3, the main shaft 6 can be prevented from rotating and deforming. Moreover, the worm 3 is driven to rotate by the motor 2, which drives the worm wheel 4 and the main shaft 6 to rotate, so as to realize the turning operation of the main shaft 6 after a long period of parking.

[0022] The base 1 has a mounting plate at its bottom, and the mounting plate has a number of anchor bolts, which fix the mounting plate to the ground.

[0023] Both the middle of the fixed rod 51 and the middle of the connecting rod 57 are provided with support bolts 58, which are used to fix the fixed rod 51 or the connecting rod 57 to the worm gear 4.

[0024] The adjustment unit includes an adjusting bolt 55 and a support spring 56. The adjusting bolt 55 is threaded to the end of the support rod 52. One end of the support spring 56 is fixed to the connecting rod 57, and the other end of the support spring 56 is fixed to the fixing plate. The end of the adjusting bolt 55 is rotatably connected to the fixing plate.

[0025] Rotating the adjusting bolt 55 outwards on the support rod 52 causes the adjusting bolt 55 to retract, at which point the support spring 56 is in a stretched state, thereby driving the support rod 52 to move inwards, so that the brake block 54 contacts the main shaft 6. When the adjusting bolt 55 is rotated inwards on the support rod 52, the adjusting bolt 55 extends, at which point the support spring 56 gradually becomes compressed, thereby driving the support rod 52 to open outwards, so that the brake block 54 disengages from the main shaft 6.

[0026] The brake block 54 is fixed to the middle of the support rod 52 by fastening bolts 53.

[0027] like Figure 5 As shown, the brake block 54 is provided with a friction plate 59 on the side facing the main shaft 6. The friction plate 59 is arc-shaped and fits against the outer wall of the main shaft 6.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A brake-operated turning gear device, characterized in that, The system includes a base with a central shaft hole for a main shaft to pass through. A second bearing is located in the shaft hole, and a worm gear is fitted around the outer ring of the second bearing. The main shaft passes through the inner ring of the second bearing. The worm gear meshes with a worm. The worm is horizontally positioned at the top of the base, and both ends of the worm are rotatably connected to the base via first bearings. One end of the worm is connected to the output shaft of a motor, which is fixed to the base. The worm gear is equipped with a brake assembly for fixing the main shaft and the worm gear together. The brake assembly includes a fixed rod and a connecting rod, both of which are horizontally mounted on the worm gear. Support rods are hinged to both ends of the fixed rod. Adjustment units are provided at the top of the support rod and the end of the connecting rod. The adjustment units are used to adjust the distance between the support rod and the main shaft. A brake block is provided in the middle of the support rod facing the main shaft.

2. The brake-operated turning gear device according to claim 1, characterized in that, The base has a mounting plate at its bottom, and the mounting plate has several anchor bolts that fix the mounting plate to the ground.

3. The brake-operated turning gear device according to claim 1, characterized in that, Both the middle of the fixed rod and the middle of the connecting rod are provided with support bolts, which are used to fix the fixed rod or the connecting rod to the worm gear.

4. The brake-operated turning gear device according to claim 1, characterized in that, The adjustment unit includes an adjusting bolt and a support spring. The adjusting bolt is threaded onto the end of the support rod. One end of the support spring is fixed to the connecting rod, and the other end of the support spring is fixed to the fixing plate. The end of the adjusting bolt is rotatably connected to the fixing plate.

5. The brake-operated turning gear device according to claim 1, characterized in that, The brake block is fixed to the middle of the support rod by fastening bolts.

6. The brake-operated turning gear device according to claim 1, characterized in that, The brake block is provided with a friction plate on the side facing the main shaft. The friction plate is arc-shaped and fits against the outer wall of the main shaft.

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