Direct connection type gearbox
By combining guide blocks and rubber sealing rings, the problem of poor sealing of direct-drive reducers in humid environments is solved, achieving higher sealing performance and service life.
Patent Information
- Application Number
- CN202423261436.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing direct-drive speed reducers have poor sealing performance in humid environments, leading to reduced lubrication, rusting of parts, and decreased work efficiency.
The structure employs guide blocks, support plates, auxiliary plates, and sealing rings. The combination of guide block insertion and rubber sealing rings improves the sealing effect at the connection between the motor and the reducer.
The sealing of the connection between the motor and the reducer is improved, preventing moisture from entering the machine body and extending the service life of the reducer.
Smart Images

Figure CN223578767U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of speed reducer technology, specifically a direct-drive gearbox. Background Technology
[0002] A gearbox is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine.
[0003] Currently, direct-drive speed reducers require motor drive, and the connection between the motor and the speed reducer is fixed by flange bolts. In actual use, although the flange fixing method is strong and has good performance, the sealing effect is poor. If used in a humid environment, the poor sealing effect of the speed reducer will affect the lubrication effect. At the same time, moisture entering the housing will cause the parts to rust over time, affecting the working efficiency of the speed reducer.
[0004] Therefore, a gearbox with good sealing performance is proposed to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a direct-drive gearbox to at least partially solve the above-mentioned technical problems and further seal the connection between the reducer and the motor flange.
[0006] To achieve the above objectives, this utility model provides the following technical solution: including a speed reducer and a motor;
[0007] The first flange is fixedly installed at the connection end of the reducer;
[0008] The second flange is fixedly installed on the connection end of the motor, and two guide blocks are fixedly installed at the upper and lower ends of the second flange, respectively.
[0009] A support plate is fixedly installed on the edge of the first flange, and the support plate consists of two plates respectively fixedly installed at the upper and lower ends of the first flange;
[0010] The guide block is inserted into the support plate;
[0011] An auxiliary plate is horizontally fixedly mounted on the support plate located below, and there are two auxiliary plates respectively distributed on one side of the support plate;
[0012] The two guide blocks can be inserted and slidably inserted inside the two auxiliary plates;
[0013] The sealing ring includes an iron sheet ring that is inserted into the connection end of the first flange and the second flange respectively, and rubber sealing rings that are fixed on both sides of the iron sheet ring and located inside the first flange and the second flange respectively.
[0014] Preferably, the guide block is T-shaped, and each of the two support plates has a guide groove on one side that matches the guide block. The guide groove is T-shaped, and one end of the guide groove is connected to the edge of the support plate.
[0015] Preferably, the top of the auxiliary plate has a groove that matches the sliding end of the guide block. One end of the guide block is slidably inserted into the groove, and one end of the groove communicates with one end of the guide groove.
[0016] Preferably, the first flange and the second flange are respectively provided with hidden grooves at their connection ends. The hidden grooves are two annular shapes that are distributed vertically in a stepped manner. The two hidden grooves are used to install iron sheet rings and two rubber sealing rings.
[0017] Preferably, the two rubber sealing rings are respectively bonded to both sides of the iron sheet ring with adhesive.
[0018] Preferably, the first flange and the second flange are each provided with a plurality of symmetrical mounting holes, and the first flange and the second flange are fixedly connected by a plurality of bolts.
[0019] Preferably, when the guide block is located within the groove, the guide block is symmetrical to one end of the guide groove.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] 1. When using this utility model, the two guide blocks located at the bottom of the second flange are inserted into the upper part of the auxiliary plate. The multiple mounting holes on the first flange and the second flange are symmetrical to each other, which can push the motor and the second flange toward the first flange, making it easier to bolt the first flange and the second flange together, and allowing for quick installation.
[0022] 2. Through the groove opened in the auxiliary plate, when the guide block is inserted into the guide groove, the first flange and the second flange contact each other. Multiple guide blocks are inserted into the support plate respectively. The upper and lower two guide blocks are located in the upper and lower two support plates, which can support the motor. When the motor is installed on the reducer, it is not necessary to manually support the motor as a whole, which can reduce the amount of labor when installing the motor.
[0023] 3. When using this utility model, before installing the motor and reducer, the sealing ring is first installed in the hidden groove of the first flange on the reducer. When the guide block slides on the auxiliary plate, the hidden groove on the second flange is symmetrical with the sealing ring, so that the iron ring and another rubber sealing ring are inserted into the interior of the second flange. When the first flange and the second flange are tightened with bolts, the two rubber sealing rings are squeezed inside the first flange and the second flange respectively, and fully contact the first flange and the second flange respectively, improving the sealing effect of the connection between the motor and the reducer, so that the reducer can be used in humid environments and improve the service life of the reducer. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this embodiment;
[0026] Figure 2 This is a three-dimensional structural diagram of the back of the motor in this embodiment;
[0027] Figure 3 This is a schematic cross-sectional view of the side connection portion in this embodiment;
[0028] Figure 4 This is an example. Figure 1 A schematic diagram of the enlarged structure A in the diagram;
[0029] Figure 5 This is an example. Figure 4 A schematic diagram of the enlarged B structure in the diagram;
[0030] Figure 6 This is a three-dimensional structural diagram of the first flange connection end in this embodiment;
[0031] Figure 7 This is a schematic diagram of the planar structure of the second flange connection end in this embodiment.
[0032] The attached diagram lists the components represented by each number as follows:
[0033] 1. Reducer; 11. First flange; 2. Motor; 21. Second flange; 211. Guide block; 3. Support plate; 31. Guide groove; 4. Auxiliary plate; 41. Groove; 5. Sealing ring; 51. Iron sheet ring; 52. Rubber sealing ring; 6. Hidden groove. Detailed Implementation
[0034] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0035] Please see Figure 1-7 This utility model provides a technical solution: a direct-drive gearbox, including a reducer 1 and a motor 2;
[0036] The first flange 11 is fixedly installed at the connection end of the reducer 1;
[0037] The second flange 21 is fixedly installed on the connection end of the motor 2, and two guide blocks 211 are fixedly installed at the upper and lower ends of the second flange 21 respectively.
[0038] Support plate 3 is fixedly installed on the edge of the first flange 11. There are two support plates 3, which are respectively fixedly installed at the upper and lower ends of the first flange 11.
[0039] Guide block 211 is inserted into the support plate 3;
[0040] Auxiliary plate 4 is horizontally fixed on the support plate 3 below. There are two auxiliary plates 4, which are respectively distributed on one side of the support plate 3.
[0041] Two guide blocks 211 can be inserted and slidably inside the two auxiliary plates 4;
[0042] The sealing ring 5 includes an iron sheet ring 51 that is respectively inserted into the connection end of the first flange and the second flange 21, and a rubber sealing ring 52 that is fixedly disposed on both sides of the iron sheet ring 51 and located inside the first flange 11 and the second flange 21 respectively.
[0043] When the reducer 1 and the motor 2 are installed, the guide blocks 211 at the top of the second flange 21 are used to insert the two guide blocks 211 at the bottom into the upper part of the auxiliary plate 4. The multiple mounting holes on the first flange and the second flange are symmetrical, which can push the motor 2 and the second flange toward the reducer 1 and the first flange, making it easier to align the connection ends and facilitate quick installation. The groove 41 and the guide groove 31 of the auxiliary plate 4 are connected. When the guide block 211 is inserted into the guide groove 31, the first flange 11 and the second flange 21 are in contact. The multiple guide blocks 211 are respectively inserted into the support plate 3, which can support the motor 2. When the motor 2 is installed on the reducer 1, it is not necessary to manually support the motor 2 as a whole, which can reduce the amount of labor when installing the motor 2.
[0044] Before installing the motor 2 and the reducer, the sealing ring is first installed in the hidden groove 6 opened at the end of the first flange 11 on the reducer 1. One of the rubber sealing rings 52 on the sealing ring 5 is located inside the first flange 11. The iron plate ring 51 of the sealing ring 5 is in contact with the inside of the first flange 11 and will not fall off. At the same time, one side of the iron plate ring 51 protrudes from the first flange 11. When installing the motor 2, the hidden groove 6 opened on the second flange 21 connected to the motor 2 is symmetrical with the sealing ring 5, so that the iron plate ring 51 and the other rubber sealing ring are inserted into the second flange 21. Inside flange 21, when the first flange 11 and the second flange 21 are fastened with bolts, two rubber sealing rings 52 are squeezed inside the first flange 11 and the second flange 21 respectively. After being filled, the first flange 11 and the second flange 21 are tightly fitted together. The sealing ring 5 set at the connection between the first flange 11 and the second flange 21 improves the sealing effect between the motor 2 and the reducer 1, making the reducer 1 more adaptable to use in humid environments, more practical, preventing external moisture from entering the machine body, and improving the service life of the reducer 1.
[0045] See Figure 1 and Figure 4 In some embodiments, the guide block 211 is T-shaped, and the two support plates 3 are respectively provided with guide grooves 31 that match the guide block 211 on one side. The guide grooves 31 are T-shaped, and one end of the guide grooves 31 is connected to the edge of the support plate 3.
[0046] The T-shaped guide block 211 allows it to be better supported on the support plate 3. One end of the guide groove 31 passes through the support plate 3, making it easy for the guide block 211 to enter the support plate 3 from the outside.
[0047] See Figure 1 and Figure 2 In some embodiments, the top of the auxiliary plate 4 is provided with a groove 41, which matches the sliding end of the guide block 211. One end of the guide block 211 is slidably inserted into the groove 41, and one end of the groove 41 communicates with one end of the guide groove 31.
[0048] The groove 41 on the top of the auxiliary plate 4 matches the T-shaped end of the guide block 211. When installing the motor 2, the two guide blocks 211 at the bottom of the second flange 21 are respectively inserted into the groove 41. The auxiliary plate 4 supports the motor 2 and can guide the motor 2 to move toward the first flange 11. The groove 41 and the guide groove 31 are symmetrically connected, so that the guide block 211 is accurately inserted into the support plate 3. The auxiliary plate 4 can support and guide the installation of the motor 2.
[0049] See Figure 5 Figure 6 and Figure 7In some embodiments, the connection ends of the first flange 11 and the second flange 21 are respectively provided with hidden grooves 6. The hidden grooves 6 are two annular shapes that are distributed vertically and vertically in a stepped shape. The two hidden grooves 6 are used to install the iron sheet ring 51 and the two rubber sealing rings 52. The two rubber sealing rings are respectively glued to the two sides of the iron sheet ring 51.
[0050] The hidden grooves 6, which are stepped annular grooves respectively opened at the connection ends of the first flange 11 and the second flange 21, allow half of the iron sheet ring 51 to be installed inside the first flange 11 and the other half to be located inside the second flange 21. At the same time, two rubber sealing rings 52 are located inside the first flange 11 and the second flange 21 respectively, so that the sealing ring 5 is hiddenly installed at the connection part of the first flange 11 and the second flange 21. When sealing the connection end of the reducer 1 and the motor 2, it will not affect the original sealing connection effect of the first flange 11 and the second flange 21.
[0051] See Figure 2 Figure 3 and Figure 6 In some embodiments, the first flange 11 and the second flange 21 are respectively provided with a plurality of symmetrical mounting holes. The first flange 11 and the second flange 21 are fixedly connected by a plurality of bolts. When the guide block 211 is located in the groove 41, the guide block 211 and the guide groove 31 are symmetrical at one end.
[0052] The first flange 11 and the second flange 21 are fixedly connected by bolts through the mounting holes. When the guide block 211 is located in the groove 41, the mounting holes on the first flange 11 and the second flange 21 are aligned with each other, which facilitates the connection of the bolts between the first flange 11 and the second flange 21.
[0053] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0055] 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 direct-connection gearbox comprising a speed reducer (1) and a motor (2), characterized in that: a first flange plate (11) is fixedly arranged on a connecting end of the speed reducer (1); a second flange plate (21) is fixedly arranged on a connecting end of the motor (2), and two guide blocks (211) are fixedly arranged on the upper and lower ends of the second flange plate (21) respectively; a support plate (3) is fixedly arranged at the edge of the first flange plate (11), and the support plate (3) is arranged on the upper and lower ends of the first flange plate (11) respectively; the guide blocks (211) are inserted into the support plate (3); an auxiliary plate (4) is transversely fixedly arranged on the lower support plate (3), and the auxiliary plate (4) is arranged on one side of the support plate (3) respectively; the two guide blocks (211) can be inserted and slid in the two auxiliary plates (4) respectively; a sealing ring (5) comprises a sheet ring (51) inserted into the connecting end of the first flange plate (11) and the second flange plate (21) respectively, and rubber sealing rings (52) fixedly arranged on both sides of the sheet ring (51) and located in the first flange plate (11) and the second flange plate (21) respectively. The guide blocks (211) are T-shaped, the support plates (3) are provided with guide grooves (31) matching the guide blocks (211) on one side respectively, the guide grooves (31) are T-shaped, and one end of the guide groove (31) is in communication with the edge of the support plate (3). The auxiliary plates (4) are provided with grooves (41) on the top, the grooves (41) match the sliding ends of the guide blocks (211), one end of the guide block (211) is slidably inserted into the groove (41), and one end of the groove (41) is in communication with one end of the guide groove (31). The connecting ends of the first flange plate (11) and the second flange plate (21) are provided with hidden grooves (6), the hidden grooves (6) are annular and ladder-shaped and arranged on the upper and lower sides respectively, and the two hidden grooves (6) are used for mounting the sheet ring (51) and the two rubber sealing rings (52). The two rubber sealing rings (52) are adhered to the two sides of the sheet ring (51) by glue. The first flange plate (11) and the second flange plate (21) are provided with a plurality of symmetrical mounting holes respectively, and the first flange plate (11) and the second flange plate (21) are fixedly connected by a plurality of bolts. When the guide blocks (211) are located in the grooves (41), the guide blocks (211) are symmetrical with one end of the guide grooves (31). 2. A direct coupled gearbox as claimed in claim 1, characterized in that: 3. A direct coupled gearbox as claimed in claim 2, characterized in that: 4. A direct coupled gearbox as claimed in claim 1, characterized in that: 5. A direct coupled gearbox as claimed in claim 4, characterized in that: 6. A direct coupled gearbox as claimed in claim 1, characterized in that: 7. A direct coupled gearbox as claimed in claim 3, wherein: