Speed reducer base device with buffering function
By adopting the design of elastic buffer structure and anti-loosening nut in the reducer base device, the impact problem at the moment of reducer startup is solved, the stable operation of the equipment is achieved and the maintenance cost is reduced.
Patent Information
- Application Number
- CN202422568255.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-23
AI Technical Summary
At the moment of starting, the reducer's fixed rod is fatigued and damaged due to heavy load and frequent reversing, which makes it easy to break, affecting the stability and safety of the equipment, and maintenance problems are difficult to detect.
It adopts an elastic buffer structure, uses a spring retaining sleeve and a lock nut, and uses the spring's buffering energy absorption characteristics to avoid the impact at the moment of motor startup. The lock nut is used to adjust the spring tightness to ensure a stable connection at the fixed point.
It effectively avoids fatigue fracture of the fixing rod, improves the stability and safety of equipment operation, and reduces maintenance frequency and cost.
Smart Images
Figure CN223359863U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of reducers, and in particular relates to a reducer base device with a buffer. Background Art
[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.
[0003] Gear motors, which integrate a reducer and motor, are widely used in the manufacturing industry due to their simplified design and space-saving advantages. SEW AC gear motors, in particular, are widely used in the tobacco processing industry due to their compact structure, high load-bearing capacity (large reduction ratio, high torque), smooth operation, high energy efficiency, low operating noise, long life, and a wide range of product specifications.
[0004] The reducer plays the role of matching the speed and transmitting torque between the drive motor and the actuator. In order to achieve reliable fixation of the reducer and prevent self-rotation, the reduction motor is installed on the frame through a torque arm. The torque arm has a rubber buffer sleeve. The upper end of the torque arm is connected to the reducer, and the lower end is connected to the frame through a fixed rod. It is fixed at two points. The fixed rod and rubber buffer sleeve play a certain buffering role.
[0005] During actual use, heavy starting loads and frequent reversing can cause the fixing rod to frequently suffer fatigue damage and even fracture, impacting production continuity and equipment reliability while also posing a safety hazard. Preventing the impact of the motor starting moment on the fixing point, preventing fatigue-induced fracture of the fixing rod, improving equipment stability, and ultimately ensuring continuous production became a critical issue. Furthermore, fatigue damage to the fixing rod at the connection between the torque arm and the frame is difficult to detect, hindering maintenance efforts. Utility Model Content
[0006] In response to the above problems, the utility model provides a reducer base device with a buffer, which changes the original rigid buffer into an elastic buffer, which can avoid the impact on the fixed point at the moment of motor startup. There is no need to worry about the torque arm fixing rod breaking due to fatigue, thereby improving the stability of equipment operation and ensuring continuous production.
[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0008] A buffered reducer base device includes an L-shaped base plate, which is composed of a horizontal base plate and a vertical base plate fixedly connected; the base plate is connected to a frame;
[0009] A first support block and a second support block are fixed to the horizontal bottom plate; a plurality of third bolt holes are opened on the horizontal bottom plate on a side of the first support block away from the second support block, and a retaining sleeve bolt is passed through each third bolt hole;
[0010] One end of the retaining sleeve bolt is threadedly connected to the anti-loosening nut and the spring retaining sleeve. The spring retaining sleeve is a cup-shaped body with a third bolt hole set at the bottom center. A spring is set on the spring retaining sleeve and a connecting plate is set on the top of the spring; the connecting plate is connected to the reducer.
[0011] Preferably, the spring is a cylindrical compression spring; the inner diameter of the spring retaining sleeve is slightly larger than the outer diameter of the spring.
[0012] Preferably, a plurality of first bolt holes are evenly distributed on the vertical bottom plate, which are connected to the frame with the first bolts.
[0013] Preferably, the connecting plate is a square plate, and a plurality of fourth bolt holes are provided on the connecting plate, which are connected to the reducer in conjunction with fourth bolts.
[0014] Preferably, the number of the fourth bolt holes is consistent with the number of the third bolt holes, and the center positions correspond one to one.
[0015] Preferably, a countersunk hole is further provided at the bottom of the connecting plate with the center of the fourth bolt hole as the circle point; the diameter of the countersunk hole is slightly larger than the outer diameter of the spring.
[0016] Preferably, the fourth bolt is a hexagon socket bolt, and the head diameter of the hexagon socket bolt is smaller than the inner diameter of the spring.
[0017] Preferably, reinforcing ribs and ribs are provided at the connection between the horizontal bottom plate and the vertical bottom plate, the ribs are provided at the midline position of the vertical bottom plate and the horizontal bottom plate, and the reinforcing ribs are provided at the edge position of the vertical bottom plate and the horizontal bottom plate.
[0018] Preferably, the rib is fixedly connected to the second support block.
[0019] Preferably, a second bolt hole is opened on the upper midline of the first support block and the second support block, and the first support block, the second support block and the torque arm are connected by the second bolt and the matching nut.
[0020] Compared with the prior art, the beneficial effects of the present invention are:
[0021] 1. The utility model utilizes the characteristics of spring buffering and energy absorption, and changes the original rigid buffer into elastic energy absorption, which can avoid the impact on the fixed point at the moment of motor startup, avoid the torque arm fixing rod from breaking due to fatigue, improve the stability of equipment operation, and thus ensure continuous production.
[0022] 2. The utility model can prevent the spring retaining sleeve from loosening due to the impact of starting and stopping the motor by installing an anti-loosening nut on the retaining sleeve bolt, and can also adjust the tightness of the spring as needed, which is both reliable and flexible.
[0023] 3. The utility model has a simple structure, is easy to install, and has a low manufacturing cost. During maintenance, it is only necessary to regularly check whether the elastic performance of the spring is maintained, and only replace the spring when necessary; it not only meets the needs of buffering and shock absorption, but also reduces the frequency of equipment maintenance and replacement, and also saves equipment procurement costs and labor maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0025] Figure 1 This is a schematic structural diagram of the base device according to an embodiment of the present utility model;
[0026] Figure 2 This is a schematic structural diagram of a spring retaining assembly according to an embodiment of the present utility model;
[0027] Figure 3 This is a schematic diagram of the bottom plate structure of an embodiment of the utility model;
[0028] Figure 4 This is a schematic structural diagram of a connecting plate according to an embodiment of the present utility model;
[0029] In the picture:
[0030] 1. Retaining sleeve bolt; 2. Anti-loosening nut; 3. Spring retaining sleeve; 4. Connecting plate; 5. Spring; 6. First support block; 7. Second support block; 8. Reinforcement rib; 9. Rib plate; 10. Bottom plate. DETAILED DESCRIPTION
[0031] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.
[0032] The present invention is described in detail below with reference to the accompanying drawings. The embodiment disclosed herein is a reducer base device with a buffer, such as Figure 1As shown, the device includes a base plate 10. The base plate 10 is L-shaped and consists of a horizontal base plate fixedly connected to a vertical base plate. The horizontal base plate is perpendicular to the vertical base plate. The vertical base plate is uniformly distributed with a plurality of first bolt holes for engaging first bolts with the frame to secure the entire device to the frame. In this embodiment, the frame is also provided with four first bolt holes. It is understood that in other embodiments, the number of first bolt holes may be six, eight, or even more to enhance the connection strength between the vertical base plate and the frame.
[0033] like Figure 1 As shown, reinforcing ribs 8 and ribs 9 are provided at the connection between the horizontal bottom plate and the vertical bottom plate. The ribs 9 are arranged at the midline position of the vertical bottom plate and the horizontal bottom plate, and the reinforcing ribs 8 are arranged at the edge position of the vertical bottom plate and the horizontal bottom plate; the reinforcing ribs 8 and the ribs 9 are used to improve the overall stiffness and tensile and torsional properties of the bottom plate 10; the first support block 6 and the second support block 7 are also fixedly connected to the horizontal bottom plate, wherein the second support block 7 is fixedly connected to the ribs 9.
[0034] like Figure 1 As shown, a second bolt hole is opened on the upper midline of the first support block 6 and the second support block 7 for passing the second bolt, and the first support block 6 and the second support block 7 are connected to the torque arm through the second bolt and the matching nut.
[0035] like Figure 1 As shown, a plurality of third bolt holes are provided on the horizontal base plate on the side of the first support block 6 away from the second support block 7. A retaining sleeve bolt 1 is inserted into each third bolt hole. In this embodiment, there are four third bolt holes, which are connected in sequence to form a rectangle. It is understood that in other embodiments, the number of third bolt holes can be six, eight, or more.
[0036] like Figure 1 、 Figure 2 As shown, the base plate 10 is connected to the connecting plate 4 through a spring retaining assembly. The spring retaining assembly includes a retaining sleeve bolt 1. One end of the retaining sleeve bolt 1 is threadedly connected to the anti-loosening nut 2 and the spring retaining sleeve 3. A spring 5 is provided on the spring retaining sleeve 3. The spring 5 is a cylindrical compression spring; the spring retaining sleeve 3 is a cup-shaped body with a certain depth. A third bolt hole is provided at the center of its bottom. The retaining sleeve bolt 1 can pass through the third bolt hole. The inner diameter of the spring retaining sleeve 3 is slightly larger than the outer diameter of the spring 5, so that the bottom of the spring 5 can be wrapped in the spring retaining sleeve 3; the anti-loosening nut 2 can adjust the position of the spring retaining sleeve 3 on the retaining sleeve bolt 1.
[0037] like Figure 1As shown, a connecting plate 4 is provided on the top of the spring 5. The connecting plate 4 is a square plate. A plurality of fourth bolt holes are provided on the connecting plate for passing the fourth bolts, and the connecting plate is connected to the reducer through the fourth bolts. The number of the fourth bolt holes is consistent with the number of the third bolt holes, and the position of the dots of the plurality of fourth bolt holes corresponds one to one to the position of the center of the plurality of third bolt holes of the horizontal bottom plate. At the bottom of the connecting plate 4, a corresponding number of countersunk holes are provided with the center of the fourth bolt hole as the dot.
[0038] In this embodiment, there are four fourth bolt holes, located at the four corners of the square plate. Therefore, there are also four countersunk holes, and the diameter of the countersunk holes is slightly larger than the outer diameter of the spring 5. The diameter of the countersunk holes can be consistent with the diameter of the spring retaining sleeve 3, and they have a certain depth to enclose the top of the spring 5 within the countersunk holes. The provision of the spring retaining sleeve 3 and the countersunk holes ensures that the upper and lower ends of the spring are fixed. Furthermore, because the springs are evenly distributed at the four corners of the connecting plate, they can evenly withstand impacts transmitted from the connecting plate.
[0039] In this embodiment, the connecting plate 4 is connected to the reducer through four fourth bolts, and four fourth bolt holes are also provided on the reducer housing; the fourth bolt is a hexagon socket bolt, and the head diameter of the hexagon socket bolt is smaller than the inner diameter of the spring 5 to ensure that there is no interference with the spring 5 during installation.
[0040] It is understood that in this embodiment, the locknut 2 has two functions: first, it prevents the spring retaining sleeve from loosening due to the frequent starting and stopping of the reducer; second, it allows the tightness of the spring 5 to be adjusted as needed by tightening the locknut 2. In this embodiment, the torque arm connecting the first and second support blocks is used to facilitate pressure balance among the four springs during installation of the base assembly.
[0041] It can also be understood that the first bolt hole, the second bolt hole, the third bolt hole, and the fourth bolt hole are all provided with internal threads, the first bolt hole is used to match the first bolt, the second bolt hole is used to match the second bolt, the third bolt hole is used to match the retaining sleeve bolt 1, and the fourth bolt hole is used to match the fourth bolt.
[0042] In this embodiment, the installation process of the base device is as follows:
[0043] First, use four hexagon socket bolts to fix the connecting plate 4 to the reducer, use four first bolts to connect the base plate 10 to the frame, and use a set of second bolts and nuts to connect the first support block 6 and the second support block 7 to the torque arm;
[0044] Then, insert one of the springs 5 into the spring retaining sleeve 3, and then insert the other end of the spring into a countersunk hole in the connecting plate 4; take a retaining sleeve bolt 1 and pass it through the third bolt hole corresponding to the horizontal base plate, screw in the locknut 2, and insert it into the circular hole at the bottom of the spring retaining sleeve 3, and pre-tighten the spring 5 by screwing the locknut 2; follow the same method to install the other three sets of spring retaining sleeves and the corresponding springs 5 in sequence;
[0045] Adjust the tightness of the four springs 5 uniformly to maintain a uniform tightness;
[0046] After adjusting the pressure of the four springs 5 to balance them, finally separate the torque arm from the first support block and the second support block, support the reducer through the base, and reduce its shock.
[0047] This embodiment cleverly utilizes the buffering and energy absorption characteristics of the spring, and changes the original rigid buffer into elastic energy absorption, avoiding the impact on the fixed point at the moment of motor startup, thereby avoiding fatigue impact on the torque arm fixing rod, and no longer need to worry about the torque arm fixing rod breaking due to fatigue, thereby improving the stability of equipment operation and ensuring continuous production; by installing anti-loosening nuts on the retaining sleeve bolts, it is possible to prevent the spring retaining sleeve from loosening caused by the impact of motor start-up and shutdown, and the tightness of the spring can be adjusted as needed, which is both reliable and flexible and convenient; the overall structure of the device is simple, easy to install, and has low manufacturing cost. It only needs to regularly check the elastic performance of the spring to maintain its status, and only replace the spring when necessary, which meets the needs of buffering and shock absorption, reduces the frequency of equipment maintenance and replacement, and saves equipment procurement costs and labor maintenance costs.
[0048] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.
Claims
1. A reducer base device with a buffer, characterized in that: It includes an L-shaped bottom plate, which is composed of a horizontal bottom plate and a vertical bottom plate fixedly connected; the bottom plate is connected to the frame; A first support block and a second support block are fixed to the horizontal bottom plate; a plurality of third bolt holes are opened on the horizontal bottom plate on a side of the first support block away from the second support block, and a retaining sleeve bolt is passed through each third bolt hole; One end of the retaining sleeve bolt is threadedly connected to the anti-loosening nut and the spring retaining sleeve. The spring retaining sleeve is a cup-shaped body with a third bolt hole set at the bottom center. A spring is set on the spring retaining sleeve and a connecting plate is set on the top of the spring; the connecting plate is connected to the reducer.
2. A buffered reducer base device according to claim 1, characterized in that: The spring is a cylindrical compression spring; the inner diameter of the spring retaining sleeve is slightly larger than the outer diameter of the spring.
3. A buffered reducer base device according to claim 1, characterized in that: The vertical bottom plate is evenly distributed with a plurality of first bolt holes, which are matched with the first bolts to connect with the frame.
4. A buffered reducer base device according to claim 1, characterized in that: The connecting plate is a square plate, and a plurality of fourth bolt holes are provided on the connecting plate, which are connected to the reducer with the fourth bolts.
5. A buffered reducer base device according to claim 4, characterized in that: The number of the fourth bolt holes is consistent with the number of the third bolt holes, and the center positions correspond one to one.
6. A buffered reducer base device according to claim 4, characterized in that: A countersunk hole is further provided at the bottom of the connecting plate with the center of the fourth bolt hole as the circle point; the diameter of the countersunk hole is slightly larger than the outer diameter of the spring.
7. A buffered reducer base device according to claim 4, characterized in that: The fourth bolt is a hexagon socket bolt, and the head diameter of the hexagon socket bolt is smaller than the inner diameter of the spring.
8. The buffer reducer base device according to claim 1, characterized in that: The connection between the horizontal bottom plate and the vertical bottom plate is provided with reinforcing ribs and ribs. The ribs are provided at the midline position of the vertical bottom plate and the horizontal bottom plate, and the reinforcing ribs are provided at the edge position of the vertical bottom plate and the horizontal bottom plate.
9. A buffered reducer base device according to claim 8, characterized in that: The rib plate is fixedly connected to the second support block.
10. A buffered reducer base device according to claim 8, characterized in that: A second bolt hole is provided on the upper midline of the first support block and the second support block, and the first support block and the second support block are connected and fixed to the torque arm through the second bolt and the matching nut.