Speed reducer convenient to overhaul
The reducer, with its base plate positioning holes and observation ports, solves the maintenance difficulties caused by traditional bolt connections, achieving convenient maintenance and preventing foreign objects from entering.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional speed reducers are connected by bolts between their main housings, which requires tools for maintenance and the bolts are prone to rust and difficult to remove, thus affecting maintenance efficiency.
The reducer body is fixed with bolts using positioning holes on the base plate, and the design of the observation port and the rotatable sealing plate structure make it easy to open and close during maintenance to prevent foreign objects from entering.
It simplifies the maintenance process of the speed reducer, improves the ease of operation and efficiency, and prevents foreign objects from entering the interior.
Smart Images
Figure CN223984768U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of speed reducer, concretely is a speed reducer convenient to overhaul. BACKGROUND
[0002] Speed reducer is a kind of independent component by the gear drive, worm drive, gear-worm drive enclosed in rigid shell, commonly used as the speed reduction transmission device between prime mover and working machine, between prime mover and working machine or actuator, match rotational speed and transmit torque, widely used in modern machinery.
[0003] The traditional speed reducer main body shell is connected by bolt, but when the structure in speed reducer needs to be overhauled, the bolt needs to be removed by tool, so that the inside of speed reducer can be overhauled, and the bolt is prone to rust, so that the bolt is difficult to remove. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies of prior art, the utility model provides a kind of speed reducer convenient to overhaul to solve the problem that the traditional speed reducer main body shell is connected by bolt in the background art, but when the structure in speed reducer needs to be overhauled, the bolt needs to be removed by tool, so that the inside of speed reducer can be overhauled, and the bolt is prone to rust, so that the bolt is difficult to remove.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of speed reducer convenient to overhaul, including bottom plate, four positioning holes are set in the bottom plate, four The positioning hole is in the upper end of the bottom plate in rectangular array, the speed reducer main body is fixedly installed on the bottom plate, the transmission shaft is arranged on the speed reducer main body, the observation port is set in the upper end of the speed reducer main body, the first mounting bracket is fixedly installed on the position of the front end of observation port on the speed reducer main body, the second mounting bracket is fixedly installed on the position of the rear end of observation port on the speed reducer main body, the first sealing plate is rotatably installed in the first mounting bracket, the second sealing plate is rotatably installed in the second mounting bracket.
[0006] Using the above technical solution, the base plate has a bottom cover positioning hole that cooperates with the bolts to fix the reducer body through the base plate. Then, the staff can easily inspect the internal structure of the reducer body through the observation port. When the internal structure of the reducer body does not need to be inspected, the observation port can be closed by closing the first sealing plate and the second sealing plate to prevent foreign objects from entering the internal cavity of the reducer body through the observation port.
[0007] Preferably, a locking block is fixedly installed on the first sealing plate near the front end, the front surface of the locking block has an insertion hole, and both end faces of the locking block have connection holes.
[0008] By adopting the above technical solution, the locking block installed on the first sealing plate can effectively restrict the space between the first sealing plate and the second sealing plate, and the insertion hole at the front end of the locking block can be used to insert the rod.
[0009] Preferably, a connecting rod extends through both ends of the locking block, and the connecting rod is inserted into a connecting hole. A first pull ring is fixedly installed on the outer end surface of the connecting rod, and an arc-shaped end is formed on the inner end surface of the connecting rod. A first limiting plate is fixedly installed on the connecting rod, and a first spring is fixedly installed on the first limiting plate. The other end of the first spring is connected to the locking block.
[0010] Using the above technical solution, by releasing the second pull ring, the second spring inside the fixing frame drives the insertion rod to reset, thereby inserting the insertion rod into the locking block. Since the end faces of the connecting rods inserted on both sides of the locking block are all opened with arc-shaped ends, after the insertion rod is inserted into the locking block, the insertion rod will move outward, at which time the first spring will contract. Then, after the insertion rod is fully inserted into the locking block, the first spring will rebound, and the connecting rod will be inserted into the limiting holes opened on both sides of the insertion rod, thereby restricting the space between the first sealing plate and the second sealing plate.
[0011] Preferably, a fixing bracket is fixedly installed on the second sealing plate near the front end, and a rod is inserted through the fixing bracket. Limiting holes are opened on both sides of the front end of the rod.
[0012] By adopting the above technical solution, the insertion rod set in the fixing frame can restrict the first sealing plate and the second sealing plate, and the limiting hole opened on the front side of the insertion rod can effectively restrict the insertion rod.
[0013] Preferably, a second pull ring is fixedly installed at the outer end of the insertion rod, a second limiting plate is fixedly installed on the insertion rod, a second spring is fixedly installed on the second limiting plate, and the other end of the second spring is connected to the fixing frame.
[0014] Using the above technical solution, by pulling the second pull ring, the second pull ring causes the insertion rod to be pulled out from the locking block. Then, the second limiting plate on the insertion rod can effectively restrict the insertion rod, and the second spring installed on the second limiting plate will drive the insertion rod to reset.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This easy-to-maintain reducer allows for easy maintenance by pulling the first pull ring to both sides, which in turn pulls the first connecting rod out of the limiting hole inside the insert rod. After the connecting rod is pulled out of the limiting hole, the insert rod is no longer restricted. Therefore, the operator can pull the second pull ring to pull the insert rod out of the locking block. Once the insert rod is pulled out of the locking block, there is no restriction between the first sealing plate and the second sealing plate, making it easy to open the first and second sealing plates. Therefore, the operation is relatively simple and allows for quick opening and closing of the first and second sealing plates.
[0017] 2. This easy-to-maintain speed reducer allows for convenient inspection of the internal structure of the speed reducer body through an observation port. When inspection of the internal structure of the speed reducer body is not required, the observation port can be closed by closing the first and second sealing plates to prevent foreign objects from entering the internal cavity of the speed reducer body through the observation port. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the speed reducer of this utility model, which is easy to maintain;
[0019] Figure 2 This is a schematic diagram of the opening structure of the speed reducer inspection port for easy maintenance according to this utility model;
[0020] Figure 3 This is a schematic diagram of the locking block and related structures of this utility model;
[0021] Figure 4 This is a schematic diagram of the first sealing plate and its related structures of the present invention;
[0022] Figure 5 This is a schematic diagram of the second sealing plate and its related structures of this utility model.
[0023] In the diagram: 1. Base plate; 2. Positioning hole; 3. Reducer body; 4. Drive shaft; 5. Observation port; 6. First mounting bracket; 7. Second mounting bracket; 8. First sealing plate; 9. Second sealing plate; 10. Locking block; 11. Insertion hole; 12. Connecting hole; 13. Connecting rod; 14. First pull ring; 15. First limiting plate; 16. First spring; 17. Fixing bracket; 18. Insertion rod; 19. Limiting hole; 20. Second pull ring; 21. Second limiting plate; 22. Second spring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example 1:
[0026] Please refer to the following: Figures 1-5 A speed reducer designed for easy maintenance includes an observation port 5 at the upper end of the speed reducer body 3. A first mounting bracket 6 is fixedly installed on the speed reducer body 3 near the front end of the observation port 5, and a second mounting bracket 7 is fixedly installed on the speed reducer body 3 near the rear end of the observation port 5. A first sealing plate 8 is rotatably installed inside the first mounting bracket 6, and a second sealing plate 9 is rotatably installed inside the second mounting bracket 7. A locking block 10 is fixedly installed on the first sealing plate 8 near its front end. An insertion hole 11 is provided on the front surface of the locking block 10. Connecting holes 12 are provided on both end faces of the locking block 10. Connecting rods 13 penetrate both end faces of the locking block 10 and are inserted into the connecting holes 12. A first pull ring 14 is fixedly installed on the outer end surface of the connecting rod 13. An arc-shaped end is opened on the inner end surface of the connecting rod 13. A first limiting plate 15 is fixedly installed on the connecting rod 13. A first spring 16 is fixedly installed on the first limiting plate 15. The other end of the first spring 16 is connected to the locking block 10. A fixing bracket 17 is fixedly installed on the second sealing plate 9 near the front end. An insert rod 18 passes through the fixing bracket 17. Limiting holes 19 are opened on both sides of the front end of the insert rod 18. A second pull ring 20 is fixedly installed on the outer end of the insert rod 18. A second limiting plate 21 is fixedly installed on the insert rod 18. A second spring 22 is fixedly installed on the second limiting plate 21. The other end of the second spring 22 is connected to the fixing bracket 17.
[0027] Working principle: When the reducer body 3 needs maintenance, the operator can pull the first pull ring 14 to both sides, causing the first connecting rod 13 to be pulled out from the limiting hole 19 in the insert rod 18. After the connecting rod 13 is pulled out from the limiting hole 19, the insert rod 18 will be unrestricted. The operator can then pull the second pull ring 20, causing the insert rod 18 to be pulled out from the locking block 10. After the insert rod 18 is pulled out from the locking block 10, the first sealing plate 8 and the second sealing plate 9 will be unrestricted. The operator can then open the first sealing plate 8 and the second sealing plate 9 to inspect the internal structure of the reducer body 3. When it is necessary to close the observation port 5, the operator first pulls the second pull ring 20 to prevent the insert rod 18 from affecting the closure between the first sealing plate 8 and the second sealing plate 9. By rotating the first sealing plate 8 and the second sealing plate 9, the first sealing plate 8 and the second sealing plate 9 are closed. After the first sealing plate 8 and the second sealing plate 9 are closed, the operator releases the second pull ring 20, which causes the second spring 22 in the fixing frame 17 to drive the insertion rod 18 to reset, so that the insertion rod 18 is inserted into the locking block 10. Then, because the end faces of the connecting rods 13 inserted on both sides of the locking block 10 are all opened with arc-shaped ends, when the insertion rod 18 is inserted into the locking block 10, the insertion rod 18 will move outward, at which time the first spring 16 will contract. Then, when the insertion rod 18 is fully inserted into the locking block 10, the first spring 16 will rebound, and the connecting rod 13 will be inserted into the limiting holes 19 opened on both sides of the insertion rod 18, thereby restricting the first sealing plate 8 and the second sealing plate 9. This operation is relatively simple and can quickly open and close the first sealing plate 8 and the second sealing plate 9.
[0028] Example 2:
[0029] Please refer to the following: Figures 1-5 A speed reducer that is easy to maintain has four positioning holes 2 on its base plate 1, which are arranged in a rectangular array on the upper end of the base plate 1. A speed reducer body 3 is fixedly installed on the base plate 1. A drive shaft 4 is provided on the speed reducer body 3. An observation port 5 is provided on the upper end of the speed reducer body 3. A first mounting bracket 6 is fixedly installed on the speed reducer body 3 near the front end of the observation port 5. A second mounting bracket 7 is fixedly installed on the speed reducer body 3 near the rear end of the observation port 5. A first sealing plate 8 is rotatably installed in the first mounting bracket 6, and a second sealing plate 9 is rotatably installed in the second mounting bracket 7.
[0030] Working principle: The reducer body 3 can be fixed by the bottom cover positioning hole 2 on the base plate 1 and the bolts. Then, the operator can easily inspect the internal structure of the reducer body 3 through the observation port 5 on the reducer body 3. When the internal structure of the reducer body 3 does not need to be inspected, the observation port 5 can be closed by closing the first sealing plate 8 and the second sealing plate 9 to prevent foreign objects from entering the internal cavity of the reducer body 3 through the observation port 5.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A reduction gear facilitating maintenance, comprising a base plate (1), characterized in that: Four positioning holes (2) are formed in the bottom plate (1), the four positioning holes (2) are arranged in a rectangular array at the upper end of the bottom plate (1), a reducer body (3) is fixedly installed on the bottom plate (1), a transmission shaft (4) is arranged on the reducer body (3), an observation port (5) is formed at the upper end of the reducer body (3), a first mounting bracket (6) is fixedly installed on the reducer body (3) at a position close to the front end of the observation port (5), a second mounting bracket (7) is fixedly installed on the reducer body (3) at a position close to the rear end of the observation port (5), a first sealing plate (8) is rotatably installed in the first mounting bracket (6), and a second sealing plate (9) is rotatably installed in the second mounting bracket (7).
2. The easy access reduction unit of claim 1, wherein: A locking block (10) is fixedly installed on the first sealing plate (8) at a position close to the front end, a insertion hole (11) is formed in the front end surface of the locking block (10), and a connecting hole (12) is formed in the two side end faces of the locking block (10).
3. A reduction gear for ease of access according to claim 2, characterised in that: A connecting rod (13) penetrates through the two side end faces of the locking block (10), the connecting rod (13) is inserted into the connecting hole (12), a first pull ring (14) is fixedly installed on the outer end surface of the connecting rod (13), an arc-shaped end is formed in the inner end surface of the connecting rod (13), a first limiting plate (15) is fixedly installed on the connecting rod (13), a first spring (16) is fixedly installed on the first limiting plate (15), and the other end of the first spring (16) is connected in the locking block (10).
4. The easy access speed reducer of claim 1, wherein: A fixing bracket (17) is fixedly installed on the second sealing plate (9) at a position close to the front end, a insertion rod (18) penetrates through the fixing bracket (17), and limiting holes (19) are formed in the two side positions of the front end of the insertion rod (18).
5. A reduction gear for ease of access according to claim 4 wherein: A second pull ring (20) is fixedly installed on the outer end of the insertion rod (18), a second limiting plate (21) is fixedly installed on the insertion rod (18), a second spring (22) is fixedly installed on the second limiting plate (21), and the other end of the second spring (22) is connected on the fixing bracket (17).