A quick release structure for a coupling in a speed reducer

Abstract

The utility model relates to the technical field of speed reducer inner coupling and discloses a quick release structure for a speed reducer inner coupling, comprising a mounting block and a linkage mechanism mounted inside the mounting block, further comprising: a plurality of adjusting bolts arranged on the surface of the linkage mechanism and used in cooperation with each other; a fixed sleeve threadedly connected to the surface of the adjusting bolt; and a tool base fixedly connected to the bottom of the fixed sleeve, wherein the linkage mechanism, the adjusting bolt and the fixed sleeve are cooperated to allow the speed reducer inner coupling of different thicknesses to be used in cooperation, the speed reducer inner coupling can be quickly ejected under the action of the pulling mechanism, the problem that the speed reducer inner gear coupling is difficult to disassemble and requires more maintenance personnel is solved, the maintenance of the internal gear coupling of the speed reducer can be conveniently and quickly performed to optimize the maintenance, shorten the maintenance and repair time, and improve the maintenance efficiency and personnel input rate.

Description

Technical Field

[0001] This utility model relates to the technical field of internal couplings for speed reducers, specifically a quick-release structure for internal couplings of speed reducers. Background Technology

[0002] The internal coupling of a speed reducer typically refers to a coupling installed inside the gearbox to connect the input shaft of the speed reducer to the motor shaft (or power source shaft). Its core function is to transmit torque, compensate for alignment errors, and absorb a certain amount of vibration and impact, ensuring smooth and efficient power transmission between the motor (power source) and the speed reducer.

[0003] Taking the cold-rolled galvanizing production line as an example, due to the design of the gear reducer of the galvanizing line, it is easy for the gear at the motor end to break when subjected to large loads and impacts, which will cause the entire reducer to fail and not work properly. The mismatch of running speed can easily cause product quality defects such as scratches on the surface of the strip steel.

[0004] Furthermore, because most of the gear reducers are installed with interference fits, the entire motor must be disassembled and hoisted to the maintenance room to remove the damaged gear parts by heating. Each maintenance session takes approximately 8 hours, severely reducing equipment repair efficiency, affecting normal production, and causing damage to the production line. To date, there is no good solution on-site; the only option is to weld the damaged reducer back together and continue operating it, resulting in potential safety hazards. If the weld cracks, the production line will be shut down for an excessively long time, potentially causing a serious equipment accident. Utility Model Content

[0005] The purpose of this invention is to provide a quick-release structure for the internal coupling of a speed reducer, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-release structure for an internal coupling of a speed reducer, comprising a mounting block and a linkage mechanism installed inside therein, and further comprising: A number of adjusting bolts are set on the surface of the linkage mechanism and used in conjunction with each other; A fixing sleeve is threaded onto the surface of an adjusting bolt, and a tool base is fixedly connected to the bottom of the fixing sleeve; An opening is formed on the surface of the tool base, and a pulling mechanism for pressing the coupling is mounted on the surface of the mounting block.

[0007] Preferably, the linkage mechanism includes a rotating rod that rotates within the cavity of the mounting block, and both ends of the rotating rod are fixedly connected to spur gears with a diameter larger than that of the rotating rod; The linkage mechanism also includes a gear carrier that rotates on the surface of the mounting block and meshes with a spur gear.

[0008] Preferably, the extraction mechanism includes a sleeve fixed to the inner cavity of the mounting block with a thickness greater than that of the mounting block, and the inner cavity of the sleeve is provided with an extraction bolt with a conical lower surface and a flat bottom. The top of the pull-out bolt is fixedly connected to a blocking bracket with a diameter larger than that of the pull-out bolt.

[0009] Preferably, one end of the adjusting bolt is rotatably connected to a blocking seat, which is used in conjunction with the fixing sleeve.

[0010] Preferably, the outer surface of the tool base is fixedly connected with reinforcing ribs, which are composed of several intersecting support rods.

[0011] Preferably, the surface of the spur gear is fixedly connected to one end of the adjusting bolt, and the diameter of the gear carrier is larger than the diameter of the spur gear.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of a linkage mechanism, adjusting bolts, and fixing sleeves, can be used with internal couplings of different thicknesses in reducers. Furthermore, the pull-out mechanism allows for the rapid removal of the internal couplings, reducing the difficulties in disassembling internal gear couplings and the need for a large number of maintenance personnel. It facilitates quick and easy maintenance of internal gear couplings in reducers, optimizing repairs. Even with only one person, the gears on the reducer coupling can be easily disassembled, shortening repair and emergency repair time and improving maintenance efficiency and personnel availability. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional cross-sectional structural diagram of the present invention; Figure 3 This is a partial three-dimensional cross-sectional structural diagram of the present invention; Figure 4 This is a partial three-dimensional cross-sectional structural diagram of the present invention; Figure 5 This is a partial three-dimensional structural diagram of the present invention.

[0014] In the diagram: 1. Mounting block; 2. Linkage mechanism; 21. Rotating rod; 22. Spur gear; 23. Gear frame; 3. Adjusting bolt; 4. Fixing sleeve; 5. Tool base; 6. Opening hole; 7. Pulling mechanism; 71. Sleeve; 72. Pulling bolt; 73. Blocking frame; 8. Blocking seat; 9. Reinforcing rib. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] Please see Figure 1-5 As shown, a quick-release structure for an internal coupling of a speed reducer includes a mounting block 1. The edges of the mounting block 1 are chamfered to reduce the risk of accidental injury to workers. A linkage mechanism 2 is installed inside the mounting block 1. An adjusting bolt 3 is provided on the surface of the linkage mechanism 2. With the cooperation of the linkage mechanism 2, the adjusting bolt 3 can be rotated, making it more convenient to adjust the adjusting bolt 3.

[0017] The linkage mechanism 2 includes two rotating rods 21 that rotate within the inner cavity of the mounting block 1. Both ends of the rotating rods 21 are fixedly connected to spur gears 22 with a diameter larger than that of the rotating rods 21. Under this action, the rotating rods 21 can be limited by the engagement of the spur gears 22, so that they will not easily move when rotating inside the mounting block 1.

[0018] The linkage mechanism 2 also includes a gear frame 23 that rotates on the surface of the mounting block 1. The surface of the gear frame 23 meshes with the spur gear 22. Under this action, when the gear frame 23 on one side rotates, it can drive the two rotating rods 21 to rotate through the cooperation of the spur gear 22.

[0019] The surface of the spur gear 22 is fixedly connected to one end of the adjusting bolt 3. With the cooperation of the rotating rod 21 and the spur gear 22, all the adjusting bolts 3 can rotate simultaneously at the same angle.

[0020] The diameter of the gear carrier 23 is larger than the diameter of the spur gear 22. Under this effect, the spur gear 22 can rotate faster when the gear carrier 23 rotates, thus facilitating the large-scale rotation of the adjusting bolt 3.

[0021] The adjusting bolts 3 are used in pairs, and the threads of the adjusting bolts 3 on the same side are in the same direction. The adjusting bolts 3 on both sides are symmetrically designed with the center of the mounting block 1 in mind.

[0022] By adjusting the thread direction of bolt 3, the threads of adjusting bolt 3 on the same side can rotate in the same direction, while the threads of adjusting bolt 3 on both sides can rotate in opposite directions.

[0023] The adjusting bolt 3 has a threaded connection to a fixing sleeve 4, and a tool base 5 is fixedly connected to the bottom of the fixing sleeve 4. With the cooperation of the linkage mechanism 2 and the adjusting bolt 3, the fixing sleeve 4 can drive the two tool bases 5 to move simultaneously in opposite directions, adapting to the end faces of couplings of different thicknesses.

[0024] The inner wall of the fixed sleeve 4 is plated with hard chrome to reduce friction loss.

[0025] One end of the adjusting bolt 3 is rotatably connected to a blocking seat 8. The blocking seat 8 works in conjunction with the fixed sleeve 4. The blocking seat 8 can block the fixed sleeve 4, thereby reducing the possibility of the fixed sleeve 4 detaching from the surface of the adjusting bolt 3 and preventing the fixed sleeve 4 from detaching from the surface of the adjusting bolt 3 and affecting its use.

[0026] Adjusting bolt 3 and fixing sleeve 4 are subjected to quenching and tempering treatment to achieve a hardness of HRC35-40.

[0027] The tool base 5 has a U-shaped cross-section and rounded edges on the inner cavity. This design allows for better contact with the coupling end face through the action of the rotating rod 21.

[0028] Tool base 5 uses Q345B low alloy steel instead of ordinary 10# channel steel to improve impact resistance.

[0029] The outer surface of the tool base 5 is fixedly connected with a reinforcing rib 9, which is composed of several intersecting support rods. Under this action, the compressive strength of the tool base 5 can be increased by the cooperation of the reinforcing rib 9, thereby reducing the possibility of easy deformation.

[0030] The tool base 5 has an opening 6 on its surface, and is designed symmetrically with respect to the center of the tool base 5.

[0031] The surface of the mounting block 1 is equipped with a pulling mechanism 7, which is used to squeeze the coupling to disengage it from the inside of the reducer.

[0032] The pulling mechanism 7 includes a sleeve 71 fixed to the inner cavity of the mounting block 1. The inner cavity of the sleeve 71 is provided with a pulling bolt 72. The thickness of the sleeve 71 is greater than the thickness of the mounting block 1, which can increase the connection area of ​​the pulling bolt 72, thereby making the pulling bolt 72 more stable when pressing the coupling.

[0033] The lower part of the surface of the pull-out bolt 72 is conical, and the bottom is flat. This design increases the stability of the pull-out bolt 72 during use, thereby making the contact between the coupling and the pull-out bolt 72 smoother.

[0034] A stop bracket 73 is fixedly connected to the top of the pull-out bolt 72, which can be used as a force application point to facilitate the rotation of the pull-out bolt 72 by the staff.

[0035] The diameter of the blocking bracket 73 is larger than the diameter of the pull-out bolt 72, which can effectively block the pull-out bolt 72 and reduce the possibility of the pull-out bolt 72 coming off the sleeve 71 and affecting the normal use of the structure.

[0036] The pull-out bolt 72 is made of M16*150 bolt, and the sleeve 71 is made of M16 nut. The recommended value of bolt preload torque is provided, such as 120 N·m for M16 bolt torque.

[0037] Working principle: First, the tool base 5 is clamped onto the coupling. Then, the operator rotates the gear frame 23 to make the spur gear 22 drive the rotating rod 21 to rotate, thereby enabling the adjusting bolt 3 to rotate. Through the cooperation of the adjusting bolt 3 and the fixing sleeve 4, the position of the tool base 5 is effectively adjusted, so that the structure can be used for couplings of different sizes.

[0038] Subsequently, when the staff rotates the blocking frame 73, the pull-out bolt 72 rotates. One end of the pull-out bolt 72 abuts against the end face of the coupling. Then, with the cooperation of the sleeve 71 and the pull-out bolt 72, the coupling is pulled out of the coupling. This allows for convenient and quick maintenance and repair of the gear coupling inside the reducer, shortening the maintenance and emergency repair time.

[0039] 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. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A quick-release structure for an internal coupling of a speed reducer, comprising a mounting block (1) and a linkage mechanism (2) mounted therein, characterized in that, Also includes: Several adjusting bolts (3) are set on the surface of the linkage mechanism (2) and used in conjunction with each other. A fixing sleeve (4) is threaded onto the surface of the adjusting bolt (3), and a tool base (5) is fixedly connected to the bottom of the fixing sleeve (4). An opening (6) is formed on the surface of the tool base (5), and a pull-out mechanism (7) for pressing the coupling is mounted on the surface of the mounting block (1).

2. The quick-release structure for an internal coupling of a speed reducer according to claim 1, characterized in that: The linkage mechanism (2) includes a rotating rod (21) that rotates in the inner cavity of the mounting block (1), and both ends of the rotating rod (21) are fixedly connected with spur gears (22) with a diameter larger than that of the rotating rod (21). The linkage mechanism (2) also includes a gear carrier (23) that rotates on the surface of the mounting block (1) and meshes with the spur gear (22).

3. The quick-release structure for an internal coupling of a speed reducer according to claim 1, characterized in that: The extraction mechanism (7) includes a sleeve (71) fixed to the inner cavity of the mounting block (1) with a thickness greater than that of the mounting block (1). The inner cavity of the sleeve (71) is provided with an extraction bolt (72) with a cone shape on the lower surface and a flat surface at the bottom. The top of the pull-out bolt (72) is fixedly connected to a stop (73) with a diameter larger than that of the pull-out bolt (72).

4. A quick-release structure for an internal coupling of a speed reducer according to claim 1, characterized in that: One end of the adjusting bolt (3) is rotatably connected to a blocking seat (8), which is used in conjunction with the fixing sleeve (4).

5. A quick-release structure for an internal coupling of a speed reducer according to claim 1, characterized in that: The outer surface of the tool base (5) is fixedly connected with a reinforcing rib (9), which is composed of several intersecting support rods.

6. A quick-release structure for an internal coupling of a speed reducer according to claim 2, characterized in that: The surface of the spur gear (22) is fixedly connected to one end of the adjusting bolt (3), and the diameter of the gear frame (23) is larger than the diameter of the spur gear (22).

Images