A speed reducer with built-in hypoid gear transmission

Abstract

The application relates to the technical field of speed reducers, in particular to a speed reducer with built-in quasi-double-helical gear transmission, which comprises a speed reducer main body and a butt flange arranged on the speed reducer main body, and the butt flange is provided with a mounting hole; wherein equidistant side limiting grooves are arranged on the inner hole side wall of the mounting hole, a containing clamping groove is arranged at the position of the two end orifices of the mounting hole, a mounting screw groove is arranged in the containing clamping groove, and a connecting assembly is arranged in the mounting hole; wherein the connecting assembly arranged in the mounting hole on the butt flange provides a damping buffer effect for the bolt passing through the connecting assembly, that is, two rubber embedded pipes are symmetrically inserted and arranged at the two ends of the mounting hole, and the rubber embedded pipes are used in cooperation with the side protection assembly, so that damping protection is provided for the bolt used for the speed reducer installation, the problems of vibration loosening and even fracture are avoided, and the stability of the speed reducer installation is ensured.

Description

Technical Field

[0001] This invention relates to the field of speed reducer technology, and in particular to a speed reducer with built-in hypoid gear transmission. Background Technology

[0002] A Chinese patent document with publication number CN220185772U discloses a quasi-hyperboloid reducer. The design includes a buffer base, a fixed plate, a gearbox, and a cooling housing. Both the gearbox and the cooling housing are mounted on the fixed plate, with the end of the cooling housing connected to the gearbox. A water tank is installed on the top surface of the fixed plate, located at the rear end of the gearbox. The buffer base is positioned below the fixed plate, and its top surface has several buffer holes, each containing a buffer mechanism. The upper end of the buffer mechanism is connected to the bottom of the fixed plate. Essentially, a buffer base is installed at the bottom of the reducer, connected to the fixed plate at the bottom of the reducer via a buffer mechanism. When the reducer vibrates, the vibration is transmitted downwards, initially buffered by a spring, and then further buffered by a piston working in conjunction with the buffer oil inside the buffer base, thereby improving the damping effect.

[0003] The above solution is for overall vibration reduction of the reducer. When the reducer is used in conjunction with the drive motor, the two are usually fixedly connected by bolts passing through the mounting holes in the mating flanges. There is a lack of a suitable auxiliary structure at this connection position to meet its vibration reduction protection requirements. When vibration occurs, the connecting bolts are prone to loosening or even breakage, which in turn affects the safety of the reducer.

[0004] To address these issues, this invention proposes a speed reducer with a built-in quasi-hypoid gear transmission. Summary of the Invention

[0005] The purpose of this invention is to provide a speed reducer with built-in quasi-hyperboloid gear transmission to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a speed reducer with built-in quasi-hypoid gear transmission, comprising a speed reducer body and a docking flange disposed on the speed reducer body, wherein the docking flange is provided with mounting holes; Side limiting grooves are provided at equal intervals on the inner sidewall of the mounting hole, and receiving slots are provided at both ends of the mounting hole. Mounting screw grooves are provided in the receiving slots, and connecting components are provided in the mounting hole.

[0007] Preferably, the connecting assembly includes a rubber inner tube, a circular end plate, a first placement groove, an auxiliary hole, an annular groove, a mounting screw, a screw head disc, a slotted auxiliary groove, and a protective assembly; one end of the rubber inner tube is fixedly provided with a circular end plate, and the rubber inner tube is adapted to be inserted into the mounting hole, and two sets of rubber inner tubes are provided in the mounting hole; the circular end plate is adapted to be snapped into the receiving groove, and the end face of the circular end plate is flush with the plate face of the mating flange.

[0008] Preferably, a first placement groove is provided on the end face of the circular end plate. The first placement groove is a circular groove, and an auxiliary hole is provided at the center of the first placement groove. The auxiliary hole is positioned and has the same number of sets as the mounting screw groove in the receiving slot. The mounting screw passes through the auxiliary hole and is threadedly connected to the mounting screw groove.

[0009] Preferably, a screw head disc is fixedly provided at one end of the mounting screw, and a slotted rotating auxiliary groove is provided at the end of the screw head disc, with the end face of the screw head disc being flush with the end face of the circular end plate.

[0010] Preferably, an annular groove is provided on the inner circumferential surface of the first placement groove.

[0011] Preferably, the outer wall of the rubber inner tube is provided with a protective component, which includes a limiting plate pad, a receiving cavity, a connecting strip, an auxiliary spring, a movable insert, a docking auxiliary inclined surface, and a positioning structure; the limiting plate pad is equidistantly fixed on the outer ring surface of the rubber inner tube, and a receiving cavity is provided in the limiting plate pad; one end of the movable insert is symmetrically fixed with an auxiliary spring, and the other end of the auxiliary spring is fixedly fixed on the connecting strip.

[0012] Preferably, a docking auxiliary bevel is provided at the other end of the movable insert, and both the movable insert and the connecting strip are placed in the receiving cavity of the limiting plate pad.

[0013] Preferably, the limiting plate pad and the side limiting groove on the side of the mounting hole are positioned correspondingly and have the same number of sets, and the thickness of the limiting plate pad and the width of the side limiting groove are equal.

[0014] Preferably, the number of sets of the movable insert and the limiting plate pad are the same, and one movable insert is provided in one limiting plate pad.

[0015] Preferably, the connecting strip is installed and positioned by a positioning structure, which includes a positioning slot, a mounting screw hole, a second placement groove, a positioning screw, and a screw head. The positioning slot is located on one side of the connecting strip, the mounting screw hole is located on one side of the limiting plate pad, and a second placement groove is provided at the outer opening of the mounting screw hole. The positioning screw is threaded to the mounting screw hole, and one end of the positioning screw is engaged with the positioning slot on the side wall of the connecting strip. One end of the positioning screw is fixedly provided with a screw head, and the screw head is flush with the outer surface of the limiting plate pad.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention relates to a speed reducer with a built-in quasi-hypoid gear transmission, comprising a speed reducer body and a mating flange mounted on the speed reducer body. The mating flange has mounting holes. Side limiting grooves are equidistantly arranged on the inner sidewall of the mounting hole, and receiving slots are provided at both ends of the mounting hole. Mounting screw grooves are provided in the receiving slots, and a connecting component is provided in the mounting hole. This design utilizes the connecting component positioned in the mounting hole on the mating flange to provide shock absorption for bolts passing through it. Specifically, two rubber-embedded tubes are symmetrically inserted at both ends of the mounting hole, and the cooperation between the rubber-embedded tubes and the side protection component provides shock absorption protection for the bolts used for speed reducer installation. When the connecting bolts used to install the speed reducer pass through the rubber-embedded tubes, after the connecting bolts are tightened, the rubber-embedded tubes and the protection component provide shock absorption protection for the connecting bolts, effectively improving the connection performance and preventing vibration-induced loosening or even breakage, thus ensuring the stability of the speed reducer during installation and use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the reducer structure connection of the built-in quasi-hyperboloid gear transmission of the present invention; Figure 2 for Figure 1 Enlarged schematic diagram of the structural connection at point A in the middle; Figure 3 This is a schematic diagram of the connection plane of the reducer structure with built-in quasi-hyperboloid gear transmission of the present invention; Figure 4 This is a schematic diagram of the front side of the connection component structure of the present invention; Figure 5 This is a schematic diagram of the connection component structure of the present invention from the rear side; Figure 6 This is a schematic diagram of the connection between the rubber inner tube and the protective component structure of the present invention before an explosion. Figure 7 For this Figure 6 Enlarged schematic diagram of the structural connection at point B; Figure 8 This is a schematic diagram of the connection between the rubber inner tube and the protective component structure of the present invention after an explosion. Figure 9 For this Figure 8 Enlarged schematic diagram of the structural connection at point C.

[0018] In the diagram: 1. Reducer body; 2. Connecting flange; 3. Mounting hole; 31. Side limiting groove; 32. Receiving slot; 33. Mounting screw groove; 401. Rubber inner tube; 402. Circular end plate; 403. First placement groove; 404. Auxiliary hole; 405. Annular groove; 406. Mounting screw; 407. Screw head disc; 408. One-line rotating auxiliary groove; 501. Limiting plate pad; 502. Receiving cavity; 503. Connecting strip; 504. Auxiliary spring; 505. Movable insert; 506. Connecting auxiliary inclined surface; 601. Positioning slot; 602. Mounting screw hole; 603. Second placement groove; 604. Positioning screw; 605. Screw head. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figures 1-9 A speed reducer with built-in quasi-hyperboloid gear transmission includes a speed reducer body 1 and a docking flange 2 disposed on the speed reducer body 1. The docking flange 2 is provided with mounting holes 3. Side limiting grooves 31 are provided at equal intervals on the inner sidewall of the mounting hole 3, and receiving slots 32 are provided at both ends of the mounting hole 3. Mounting screw grooves 33 are provided in the receiving slots 32, and connecting components are provided in the mounting hole 3.

[0021] This solution uses a connecting component installed in the mounting hole 3 on the mating flange 2 to provide a shock-absorbing buffer for the bolts passing through it. Specifically, two rubber-embedded tubes 401 are symmetrically inserted at both ends of the mounting hole 3. The rubber-embedded tubes 401, in conjunction with their side protection components, provide shock-absorbing protection for the bolts used to install the reducer, preventing vibration-induced loosening or even breakage, thus ensuring the stability of the reducer installation and use. In other words, when the connecting bolts used to install the reducer pass through the rubber-embedded tubes 401, after the connecting bolts are tightened, the rubber-embedded tubes 401 and the protection components provide shock-absorbing protection for the connecting bolts, which has a positive effect on the connection of the bolts.

[0022] For the installation and use of the speed reducer, the mounting holes 3 in the flange 2 on the speed reducer body 1 and the mounting holes 3 in the flange 2 on the drive motor are aligned. This requires first installing the connecting assembly into the mounting holes 3, that is, inserting two rubber inner tubes 401 from both ends of the mounting holes 3. The limiting plate 501 on the outer circumferential surface of the rubber inner tube 401 is aligned with the side limiting groove 31 on the side of the mounting hole 3. Simultaneously, the auxiliary hole 404 in the circular end plate 402 of the rubber inner tube 401 is aligned with the mounting screw groove 33 in the receiving groove 32 to facilitate the subsequent installation and positioning of the circular end plate 402. This continues until the circular end plate 402 is completely inserted into the receiving groove 32, ensuring that the end face of the circular end plate 402 is flush with the plate surface of the flange 2. One end of the rubber inner tube 401 in the connecting assembly is fixedly equipped with the circular end plate 402, and the rubber inner tube 401 is compatible with it. The insertion device is installed in the mounting hole 3, and two sets of rubber embedded tubes 401 are provided in the mounting hole 3. The circular end plate 402 is adapted to fit into the receiving groove 32, and the end face of the circular end plate 402 is flush with the plate face of the mating flange 2. A first placement groove 403 is provided on the end face of the circular end plate 402. The first placement groove 403 is a circular groove, and an auxiliary hole 404 is provided at the center of the first placement groove 403. The auxiliary hole 404 is connected to the receiving groove 3. The mounting screw grooves 33 in section 2 are positioned correspondingly and have the same number of sets. The mounting screws 406 pass through the auxiliary hole 404 and are threadedly connected to the mounting screw grooves 33. A screw head disc 407 is fixedly provided at one end of the mounting screw 406, and a slotted rotating auxiliary groove 408 is provided at the end of the screw head disc 407. The end face of the screw head disc 407 is flush with the end face of the circular end plate 402. An annular groove 405 is provided on the inner ring surface of the first placement groove 403.

[0023] After the circular end plate 402 is fully inserted into the receiving slot 32, the circular end plate 402 is fixed with the mounting screw 406, thus realizing the installation and positioning of the rubber inner tube 401. The mounting screw 406 is passed through the auxiliary hole 404 and threaded into the mounting screw groove 33. When the mounting screw 406 is turned, the screw head disc 407 is turned with a screwdriver, which in turn drives the mounting screw 406 to be threaded into the mounting screw groove 33 until the mounting screw 406 is tightened. At this time, the screw head disc 407 is in the first placement groove 403, and the end face of the screw head disc 407 is flush with the plate surface of the circular end plate 402.

[0024] During the insertion of the rubber inner tube 401 into the mounting hole 3, the limiting plate pad 501 on the outer wall circumferential surface of the rubber inner tube 401 also enters the side limiting groove 31. Simultaneously, the movable insert 505 also enters the side limiting groove 31. The purpose of the auxiliary inclined surface 506 on the end face of the movable insert 505 is to facilitate its entry into the side limiting groove 31. When the movable insert 505 is fully inserted into the side limiting groove 31, it is compressed, causing the auxiliary spring 504 connected to it to be in a compressed state. The auxiliary spring 504 and the movable insert 505 provide flexible support and buffer protection. A protective component is provided on the outer wall of the rubber inner tube 401. The limiting plate pads 501 in the protective component are equidistantly fixed on the outer circumferential surface of the rubber inner tube 401, and a receiving cavity 502 is provided in the limiting plate pads 501. An auxiliary spring 504 is symmetrically fixed at one end of the insert 505, and the other end of the auxiliary spring 504 is fixedly fixed on the connecting strip 503. A mating auxiliary inclined surface is provided at the other end of the movable insert 505. The movable insert 505 and the connecting strip 503 are placed in the receiving cavity 502 of the limiting plate pad 501. The limiting plate pad 501 and the side limiting groove 31 on the side of the mounting hole 3 are positioned correspondingly and have the same number of sets. The thickness of the limiting plate pad 501 and the groove width of the side limiting groove 31 are equal. The movable insert 505 and the limiting plate pad 501 have the same number of sets. One movable insert 505 is movably inserted into one limiting plate pad 501. That is, when the connecting bolt for installing the reducer passes through the rubber inner tube 401, after the connecting bolt is tightened, the rubber inner tube 401 and the protective components provide a shock-absorbing protection for the connecting bolt, which has a positive effect on the connection of the connecting bolt.

[0025] The connecting strip 503 is installed and positioned using a positioning structure, which includes a positioning slot 601, a mounting screw hole 602, a second placement groove 603, a positioning screw 604, and a screw head 605. The positioning slot 601 is located on one side of the connecting strip 503, and the mounting screw hole 602 is located on one side of the limiting plate pad 501. A second placement groove 603 is located at the outer opening of the mounting screw hole 602. The positioning screw 604 is threaded into the mounting screw hole 602, and one end of the positioning screw 604 is engaged with the positioning slot 601 on the side wall of the connecting strip 503. A screw head 605 is fixedly provided at one end of the positioning screw 604, and the screw head 605 is flush with the outer surface of the limiting plate pad 501. For the installation and use of the movable insert 505, the connecting strip 503 is first inserted into the receiving cavity of the limiting plate pad 501. In body 502, until the connecting strip 503 reaches the bottom of the receiving cavity 502, at this time, part of the movable insert 505 is in the receiving cavity 502 and the other part is on the outside of the receiving cavity 502. Then, it is connected to the mounting screw hole 602 on the side wall of the limiting plate pad 501 by the positioning screw 604 until one end of the positioning screw 604 is engaged with the positioning slot 601 on the connecting strip 503. The installation of the connecting strip 503 and the movable insert 505 is completed. The operation is convenient. After one end of the positioning screw 604 is engaged with the positioning slot 601, the screw head 605 is completely in the second placement groove 603 at the end of the mounting screw hole 602. That is, the end of the screw head 605 is flush with the outer plate surface of the limiting plate pad 501, so as to avoid obstructing the insertion of the limiting plate pad 501 and the side limiting groove 31.

[0026] In this design, two rubber-insulated tubes 401 are symmetrically connected in one mounting hole 3. The rubber-insulated tubes 401 are detachable, meaning they are fixed by a circular end plate 402 at their ends. For subsequent disassembly, the mounting position of the circular end plate 402 must first be released. This is done by turning the screw head disc 407 with a screwdriver, which in turn rotates the mounting screw 406 until the threaded connection between the mounting screw 406 and the mounting screw groove 33 in the receiving slot 32 is released. Since the circular end plate 402 is flush with the surface of the mating flange 2, to improve the ease of removal of the circular end plate 402, the mounting screw 406 needs to be removed. The annular groove 405 on the inner surface of the first placement groove 403 will be exposed. The operator can use their fingers to pry open the annular groove 405 and pull out the circular end plate 402 along with the rubber inner tube 401. The disassembly of the rubber inner tube 401 is then completed. After that, the rubber inner tube 401 at the other end of the mounting hole 3 is disassembled. After the installation and positioning of the circular end plate 402 at the end of the other rubber inner tube 401 is released, the rubber inner tube 401 can be pried out by prying open the annular groove 405 on the inner surface of the first placement groove 403 with its fingers. Alternatively, a stick or thin tube can be inserted from one end of the mounting hole 3 and then the rubber inner tube 401 can be pushed out directly.

[0027] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A speed reducer with built-in hypoid gear transmission, comprising a speed reducer body (1) and a docking flange (2) disposed on the speed reducer body (1), wherein the docking flange (2) is provided with mounting holes (3); Its features are: Side limiting grooves (31) are provided at equal intervals on the inner sidewall of the mounting hole (3), and receiving slots (32) are provided at both ends of the mounting hole (3). Mounting screw grooves (33) are provided in the receiving slots (32), and connecting components are provided in the mounting hole (3). The connecting assembly includes a rubber inner tube (401); The outer wall of the rubber inner tube (401) is provided with a protective component, which includes a limiting plate pad (501), a receiving cavity (502), a connecting strip (503), an auxiliary spring (504), a movable insert (505), a docking auxiliary inclined surface (506), and a positioning structure; the limiting plate pad (501) is equidistantly fixed on the outer ring surface of the rubber inner tube (401), and a receiving cavity (502) is provided in the limiting plate pad (501); one end of the movable insert (505) is symmetrically fixed with an auxiliary spring (504), and the other end of the auxiliary spring (504) is fixed on the connecting strip (503); An auxiliary inclined surface (506) is provided at the other end of the movable insert (505), and both the movable insert (505) and the connecting strip (503) are placed in the receiving cavity (502) of the limiting plate pad (501).

2. The reducer with built-in hypoid gear transmission according to claim 1, characterized in that: The connecting assembly also includes a circular end plate (402), a first placement groove (403), an auxiliary hole (404), an annular groove (405), a mounting screw (406), a screw head disc (407), a straight-line rotating auxiliary groove (408), and a protective assembly; one end of the rubber inner tube (401) is fixedly provided with a circular end plate (402), and the rubber inner tube (401) is adapted to be inserted into the mounting hole (3), and two sets of rubber inner tubes (401) are provided in the mounting hole (3). The circular end plate (402) is adapted to be inserted into the receiving groove (32), and the end face of the circular end plate (402) is flush with the plate surface of the mating flange (2).

3. The reducer with built-in hypoid gear transmission according to claim 2, characterized in that: A first placement groove (403) is provided on the end face of the circular end plate (402). The first placement groove (403) is a circular groove, and an auxiliary hole (404) is provided at the center of the first placement groove (403). The auxiliary hole (404) is positioned in the same way as the mounting screw groove (33) in the receiving slot (32), and the number of sets is the same. The mounting screw (406) passes through the auxiliary hole (404) and is threadedly connected to the mounting screw groove (33).

4. The reducer with built-in hypoid gear transmission according to claim 2, characterized in that: A screw head disc (407) is fixedly provided at one end of the mounting screw (406), and a slotted rotating auxiliary groove (408) is provided at the end of the screw head disc (407). The end face of the screw head disc (407) is flush with the end face of the circular end plate (402).

5. The reducer with built-in hypoid gear transmission according to claim 2, characterized in that: An annular groove (405) is provided on the inner ring surface of the first placement groove (403).

6. The reducer with built-in hypoid gear transmission according to claim 1, characterized in that: The limiting plate pad (501) is positioned in a corresponding manner to the side limiting groove (31) on the side of the mounting hole (3), and the number of sets is the same. The thickness of the limiting plate pad (501) and the width of the groove of the side limiting groove (31) are set to be equal.

7. The reducer with built-in hypoid gear transmission according to claim 1, characterized in that: The number of sets of the movable insert (505) and the limiting plate pad (501) are the same, and one movable insert (505) is movably inserted into one limiting plate pad (501).

8. The reducer with built-in hypoid gear transmission according to claim 1, characterized in that: The connecting strip (503) is installed and positioned by a positioning structure, which includes a positioning slot (601), a mounting screw hole (602), a second placement groove (603), a positioning screw (604), and a screw head (605). The positioning slot (601) is located on one side of the connecting strip (503), the mounting screw hole (602) is located on one side of the limiting plate pad (501), and a second placement groove (603) is provided at the outer opening of the mounting screw hole (602). The positioning screw (604) is threadedly connected to the mounting screw hole (602), and one end of the positioning screw (604) is fitted and engaged with the positioning slot (601) on the side wall of the connecting strip (503). One end of the positioning screw (604) is fixedly provided with a screw head (605), and the screw head (605) is flush with the outer surface of the limiting plate pad (501).

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