A parallel shaft reducer

Abstract

This utility model discloses a parallel shaft reducer, belonging to the technical field of reducer technology. The parallel shaft reducer includes: a gear set, a lower housing, and a magnetic suction assembly. The gear set reduces speed and amplifies torque. The lower housing is used to hold lubricating oil, and an oil pan is provided at the bottom of the lower housing. The magnetic suction assembly is located on top of the oil pan and includes a fixing plate with equally spaced storage slots at its outer end. The oil pan is detachably installed at the bottom of the lower housing via a quick-connect assembly and a connecting assembly. The magnetic suction assembly is installed on the oil pan. The lubricating oil contained inside the lower housing is located above the magnetic suction assembly. Metal debris generated by the wear of the gear set mixes into the lubricating oil. The magnetic rod then concentrates the debris in the storage slots through magnetic force and the weight of the debris itself, reducing subsequent contact between the debris and the gear set, thereby reducing wear during operation and increasing its service life.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and more specifically, to a parallel shaft speed reducer. Background Technology

[0002] Parallel shaft reducers are a common type of gear reduction device. They are characterized by parallel input and output shafts (usually arranged horizontally). They achieve speed reduction and torque amplification through multi-stage gear transmission. The parallel arrangement of the input and output shafts results in a compact structure, making them suitable for space-constrained applications. They commonly use helical gears (low noise, high load capacity) or spur gears (low cost, high efficiency). Multiple stages are connected in series to achieve a larger reduction ratio. Due to their reliability and economy, they occupy an important position in industrial transmissions, and are especially suitable for medium to high loads.

[0003] Chinese Patent Announcement No. CN219198057U discloses a parallel shaft reducer. This solution incorporates positioning cylinders and internal threads. By installing positioning cylinders around the bottom of the base, with the cylinders positioned directly below the mounting holes, the reducer can be positioned by inserting the positioning cylinders into the connecting holes during installation. This provides a certain degree of limitation for the base, which can then be fixed to the mounting base with bolts. This allows for faster alignment of the mounting holes and connecting holes, avoiding the time-consuming process of misaligning the holes and improving the installation efficiency of the reducer.

[0004] The gears of the speed reducer are made of metal. When the gears mesh and rotate, metal shavings are produced due to mechanical wear. These metal shavings mix with the lubricating oil, and when the gears are lubricated later, the metal shavings are easily trapped between the two gears. When the gears rotate and mesh, they will scratch the surface of the gears, thus reducing their service life.

[0005] Therefore, a parallel shaft reducer is proposed to address the above problems. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] This utility model provides a parallel shaft reducer, which can improve the problems existing in related technologies: metal shavings generated by mechanical wear will mix with the lubricating oil, so when the gears are lubricated later, the metal shavings are easily stuck between the two gears, and will scratch the surface of the gears when they rotate and mesh, thus reducing the service life.

[0008] 2. Technical Solution

[0009] To solve the above problems, the present invention adopts the following technical solution.

[0010] This application provides a parallel shaft reducer, including a speed-changing gear set, and further comprising:

[0011] The system comprises a lower housing, an oil pan, and a magnetic suction assembly. The lower housing is located at the bottom of the gear set and is used to hold lubricating oil. The oil pan is located at the bottom of the lower housing. The magnetic suction assembly is located at the top of the oil pan and includes a fixing plate. The outer end of the fixing plate has equidistantly distributed storage slots, and the bottom of the storage slots has a fixing groove. The storage slots are connected to the fixing grooves. A magnetic rod is installed inside the fixing groove. Metal debris generated during the operation of the gear set is attracted by the magnetic rod and deposited inside the storage slots.

[0012] The technical solutions described in this application embodiment have at least the following technical effects:

[0013] An oil pan is detachably installed at the bottom of the lower housing via a quick-connect assembly and a connecting assembly. A magnetic suction assembly is installed on the oil pan. The lubricating oil contained inside the lower housing is located above the magnetic suction assembly. Metal debris generated by the wear of the transmission gear set will mix into the lubricating oil. At this time, the magnetic rod will concentrate the debris into the storage tank through magnetic force and the gravity of the debris itself, reducing the subsequent contact between the debris and the transmission gear set, thereby reducing wear during operation and improving its service life.

[0014] In some embodiments, an upper housing is fixedly installed on the top of the lower housing, the gear set is located inside the upper housing and the lower housing, equidistantly distributed connecting components are provided on the outer edge of the oil pan, quick-connect components are provided on the outer end of the connecting components, and the fixing plate is fixedly installed on the top of the oil pan.

[0015] In some embodiments, a top cover is detachably installed on the top of the upper housing, a sealing ring is installed on the outer end of the oil pan, a seal is formed between the oil pan and the lower housing through the sealing ring, and an oil inlet is provided on the outer end of the lower housing.

[0016] In some embodiments, the magnetic suction assembly further includes a movable strip, with push plates rotatably connected to both ends of the movable strip, and scrapers evenly distributed at the outer end of the movable strip. The scrapers abut against the inner side of the storage tank, and a scraping groove is formed at the bottom end of the scraper, which abuts against the outer surface of the magnetic rod.

[0017] In some embodiments, the connecting component includes a connecting block, which is fixedly installed on the outer end of the oil pan. The outer end of the connecting block has a first insertion hole, and the inner side of the first insertion hole has a limiting groove. The outer end of the lower housing has two equally spaced insertion holes.

[0018] In some embodiments, the quick-connect assembly includes a plug rod, a pressure ring sleeved on the outer end of the plug rod, a telescopic spring sleeved on the outer end of the plug rod, a knob fixedly connected to the top of the plug rod, and the telescopic spring located between the pressure ring and the knob.

[0019] In some embodiments, two symmetrically distributed limiting blocks are fixedly connected to the bottom end of the insertion rod. The limiting blocks are adapted to the first insertion hole and the second insertion hole. The limiting blocks pass through the second insertion hole and the first insertion hole in sequence and are then rotated into the limiting groove to form a connection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the variable speed gear set structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the oil pan structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the magnetic attraction component structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the connection component structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the quick-connect assembly structure of this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Upper shell;

[0028] 2. Lower casing;

[0029] 3. Top cover;

[0030] 4. Gearbox;

[0031] 5. Quick-connect assembly; 51. Insert rod; 52. Pressure ring; 53. Telescopic spring; 54. Limit block; 55. Knob;

[0032] 6. Magnetic suction assembly; 61. Fixing plate; 62. Storage compartment; 63. Fixing groove; 64. Magnetic rod; 65. Movable strip; 66. Scraper; 67. Scraping groove; 68. Push plate;

[0033] 7. Oil pan;

[0034] 8. Connecting component; 81. Connecting block; 82. Socket one; 83. Limiting groove;

[0035] 9. Sealing ring;

[0036] 10. Socket 2;

[0037] 11. Oil filler port. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0039] Please see Figure 1 - Figure 6 A parallel shaft reducer includes a speed-changing gear set 4, and further includes:

[0040] The lower housing 2, oil pan 7, and magnetic suction assembly 6 are provided. The lower housing 2 is located at the bottom of the gear set 4 and is used to contain lubricating oil. The oil pan 7 is located at the bottom of the lower housing 2. The magnetic suction assembly 6 is located at the top of the oil pan 7. The magnetic suction assembly 6 includes a fixing plate 61. The outer end of the fixing plate 61 has equidistantly distributed storage slots 62. The bottom of the storage slots 62 has a fixing groove 63. The storage slots 62 and the fixing groove 63 are connected. A magnetic rod 64 is installed inside the fixing groove 63. Metal debris generated during the operation of the gear set 4 is attracted by the magnetic rod 64 and deposited inside the storage slots 62.

[0041] The reducer in this solution differs from traditional reducers in that it can collect metal debris generated during operation, preventing it from participating in subsequent lubrication cycles. The working principle of the transmission gear set 4 is based on gear meshing transmission. Through multi-stage gear pairs, it converts the high-speed, low-torque power of the input shaft into the low-speed, high-torque power of the output shaft. The small gear driving wheel on the high-speed input shaft meshes with the large gear driven wheel on the low-speed output shaft. If the single-stage reduction ratio is insufficient, multiple gear pairs can be connected in series, such as in two-stage or three-stage reduction.

[0042] An oil pan 7 is detachably installed at the bottom of the lower housing 2 via the cooperation of quick-connect assembly 5 and connecting assembly 8. A magnetic suction assembly 6 is installed on the oil pan 7. Since the lubricating oil is located inside the lower housing 2, it is located above the magnetic suction assembly 6. It is worth mentioning that due to the high viscosity of the grease, its flowability is poor, which reduces the attraction effect of the magnetic suction assembly 6. The magnetic suction assembly 6 in this solution is used on a speed reducer that uses lubricating oil for lubrication.

[0043] An oil inlet 11 is provided on the outside of the lower housing 2. Lubricating oil can be injected into the lower housing 2 through the oil inlet 11. After being injected into the lower housing 2, the bottom of the gear comes into contact with the lubricating oil. When the gear rotates, it will drive the lubricating oil upward, causing the lubricating oil to splash inside the lower housing 2 and the upper housing 1. This technology is existing technology.

[0044] Multiple equidistant storage slots 62 are formed on the top of the fixed plate 61. The storage slots 62 are recessed downwards. At the bottom of each storage slot 62, a fixing groove 63 is formed, which is connected to the storage slot 62. A magnetic rod 64 is installed inside the fixing groove 63. The fixed plate 61 is made of metal. The magnetic rod 64 can be magnetically attracted to the inside of the fixing groove 63. The outer surface of the magnetic rod 64 extends to the inside of the storage slot 62. Since the lubricating oil is located in the lower housing 2 above the fixed plate 61, when the gear set 4 generates metal debris through friction during operation, the debris will be washed into the lubricating oil by the lubricating oil. Then, by the gravity of the metal debris itself and the magnetic attraction of the magnetic rod 64, the metal debris will be deposited downwards into the storage slot 62. By being collected in the storage slot 62 and attracted to the surface of the magnetic rod 64, the amount of metal debris participating in the lubrication cycle can be reduced, the wear on the surface of the gear set 4 can be reduced, and the service life of the gear set 4 can be improved.

[0045] Please see Figure 1 - Figure 3 The upper housing 1 is fixedly installed on the top of the lower housing 2. The gear set 4 is located inside the upper housing 1 and the lower housing 2. The outer edge of the oil pan 7 is provided with equidistantly distributed connecting components 8. The outer end of the connecting components 8 is provided with quick-connect components 5. The fixing plate 61 is fixedly installed on the top of the oil pan 7.

[0046] The top cover 3 is detachably installed on the top of the upper housing 1. A sealing ring 9 is installed on the outer end of the oil pan 7. The oil pan 7 and the lower housing 2 are sealed by the sealing ring 9. An oil inlet 11 is provided on the outer end of the lower housing 2.

[0047] In this design, the upper housing 1 can be bolted to the top of the lower housing 2, forming a cavity to accommodate the transmission gear set 4. A top cover 3 is detachably mounted on the top of the upper housing 1 using screws. Removing the top cover 3 allows observation of the transmission gear set 4's operation, facilitating subsequent maintenance. The fixing plate 61 is fixed to the oil pan 7, and a sealing ring 9 is installed near the outer edge of the top of the oil pan 7. The sealing ring 9 ensures a seal between the lower housing 2 and the oil pan 7 when connected via the quick-connect assembly 5, preventing oil leakage.

[0048] Please see Figure 4The magnetic suction component 6 also includes a movable strip 65, with push plates 68 rotatably connected to both ends of the movable strip 65. Scrapers 66 are fixedly connected to the outer end of the movable strip 65 at equal intervals. The scrapers 66 abut against the inner side of the storage tank 62. A scraping groove 67 is opened at the bottom end of the scraper 66, and the scraping groove 67 abuts against the outer surface of the magnetic rod 64.

[0049] In this design, the movable strip 65 is mounted on the fixed plate 61. Push plates 68 are rotatably connected to both ends of the movable strip 65. When the movable strip 65 is placed on the fixed plate 61, the push plates 68 can be rotated and laid flat. When the movable strip 65 needs to be pushed, the push plates 68 can be easily pinched to push the movable strip 65. Multiple equally spaced scrapers 66 are fixed at the bottom of the movable strip 65. The spacing of the scrapers 66 not only matches the storage tank 62, but also matches the storage tank 62, allowing them to fit against the inner side of the storage tank 62. Scraping grooves 67 are formed at the bottom of the scrapers 66, and the scraping grooves 67 match the magnetic rods 64, allowing the magnetic rods 64 to be inserted into the scraping grooves 67.

[0050] When it is necessary to clean the debris collected in the storage tank 62, the movable bar 65 can be pushed so that the scraper 66 can push the debris deposited in the storage tank 62 forward until it is cleaned out of the storage tank 62, which makes it easier for the user to clean and prevents the debris adsorbed on the magnetic rod 64 from being difficult to remove.

[0051] Please see Figure 5 and Figure 6 The connecting component 8 includes a connecting block 81, which is fixedly installed on the outer end of the oil pan 7. The outer end of the connecting block 81 has a first insertion hole 82, and the inner side of the first insertion hole 82 has a limit groove 83. The outer end of the lower housing 2 has a second insertion hole 10 that is evenly distributed.

[0052] The quick-connect assembly 5 includes a plug rod 51, a pressure ring 52 is sleeved on the outer end of the plug rod 51, a telescopic spring 53 is sleeved on the outer end of the plug rod 51, and a knob 55 is fixedly connected to the top of the plug rod 51. The telescopic spring 53 is located between the pressure ring 52 and the knob 55.

[0053] Two symmetrically distributed limiting blocks 54 are fixedly connected to the bottom end of the insertion rod 51. The limiting blocks 54 are adapted to the insertion hole 1 82 and the insertion hole 2 10. After passing through the insertion hole 2 10 and the insertion hole 1 82 in sequence, the limiting blocks 54 are rotated and inserted into the limiting groove 83 to form a connection.

[0054] In this solution, the quick-connect component 5 and the connecting component 8 are used together, mainly for easy disassembly and installation of the oil pan 7. Multiple connecting components 8 are installed at equal intervals along the edge of the oil pan 7. The connecting block 81 is fixed on the oil pan 7. A first insertion hole 82 is opened on the connecting block 81, and the first insertion hole 82 penetrates the entire connecting block 81. At the same time, multiple second insertion holes 10 are also opened at equal intervals on the bottom outer edge of the lower housing 2. The position of the second insertion hole 10 corresponds to the first insertion hole 82. A limiting groove 83 is also opened on the inner side of the first insertion hole 82. The shape of the limiting groove 83 is the same as that of the first insertion hole 82, but it does not penetrate the connecting block 81.

[0055] At the bottom of the insertion rod 51, two symmetrical limiting blocks 54 are fixed. The limiting blocks 54 and the insertion rod 51 can cooperate to form a shape that matches the first insertion hole 82 and the second insertion hole 10. At the top of the insertion rod 51, a knob 55 is fixed, and at the outer end, a pressure ring 52 and a telescopic spring 53 are distributed and sleeved, with the telescopic spring 53 located between the pressure ring 52 and the knob 55.

[0056] When the oil pan 7 needs to be installed at the bottom of the lower housing 2, the oil pan 7 can be inserted into the bottom of the lower housing 2. At this time, the second insertion hole 10 and the first insertion hole 82 will overlap. Then, the insertion rod 51 and the limiting block 54 are passed through the second insertion hole 10 and the first insertion hole 82 in sequence. Then, the insertion rod 51 is pressed down further, so that the pressure ring 52 abuts against the outer end of the lower housing 2 and, in conjunction with the knob 55, compresses the telescopic spring 53, so that the limiting block 54 passes over the first insertion hole 82. Then, the knob 55 is rotated, so that the insertion rod 51 drives the limiting block 54 to rotate 90 degrees. After releasing the handle, the force of the telescopic spring 53 can push the insertion rod 51 and the limiting block 54 upward, so that the limiting block 54 is locked into the limiting groove 83. By installing multiple quick-connect components 5 in sequence, compared with the traditional bolt connection, the quick-connect components 5 can be connected by hand when there are no tools. At the same time, since the reducer needs to be placed stably on the table or the ground when working, its quick-connect components 5 do not need to be under stress at all times, which can reduce the burden on the quick-connect components 5.

[0057] Working principle: When the transmission gear set 4 is working, the friction generates metal debris that mixes into the lubricating oil. Then, through the gravity of the metal debris itself and the magnetic attraction of the magnetic rod 64, the metal debris will be deposited downwards into the storage tank 62. By being collected in the storage tank 62 and adsorbed on the surface of the magnetic rod 64, the amount of metal debris participating in the lubrication cycle can be reduced, thereby improving the service life of the transmission gear set 4. When cleaning is required, the movable strip 65 can be pushed, causing the scraper 66 to push the debris deposited in the storage tank 62 forward until it is cleaned out of the storage tank 62.

Claims

1. Parallel axis speed reducer comprising a variator gear set (4), characterized in that, Also includes: The lower housing (2) is located at the bottom of the gear set (4) and is used to contain lubricating oil; Oil pan (7), the oil pan (7) is disposed at the bottom of the lower housing (2); A magnetic suction assembly (6) is disposed on the top of the oil pan (7). The magnetic suction assembly (6) includes a fixing plate (61). The outer end of the fixing plate (61) is provided with storage slots (62) that are evenly distributed. The bottom of the storage slots (62) is provided with a fixing groove (63). The storage slots (62) and the fixing grooves (63) are connected. A magnetic rod (64) is installed on the inner side of the fixing grooves (63). The metal debris generated during the operation of the variable speed gear set (4) is adsorbed by the magnetic rod (64) and deposited inside the storage tank (62).

2. A parallel axis speed reducer according to claim 1, characterized in that: The upper housing (1) is fixedly installed on the top of the lower housing (2). The gear set (4) is located inside the upper housing (1) and the lower housing (2). The oil pan (7) is provided with equidistantly distributed connecting components (8) on its outer edge. The connecting components (8) are provided with quick-connect components (5) at their outer ends. The fixing plate (61) is fixedly installed on the top of the oil pan (7).

3. A parallel axis speed reducer according to claim 2, characterized in that: The top of the upper housing (1) is detachably fitted with a top cover (3), and a sealing ring (9) is installed on the outer end of the oil pan (7). The oil pan (7) and the lower housing (2) are sealed by the sealing ring (9), and an oil inlet (11) is provided on the outer end of the lower housing (2).

4. The parallel axis speed reducer of claim 1, wherein: The magnetic suction assembly (6) also includes a movable strip (65), with push plates (68) rotatably connected to both ends of the movable strip (65). Equally spaced scrapers (66) are fixedly connected to the outer end of the movable strip (65). The scrapers (66) abut against the inner side of the storage tank (62). A scraping groove (67) is provided at the bottom end of the scraper (66), and the scraping groove (67) abuts against the outer surface of the magnetic rod (64).

5. A parallel axis speed reducer as set forth in claim 3, characterized in that: The connecting component (8) includes a connecting block (81), which is fixedly installed on the outer end of the oil pan (7). The outer end of the connecting block (81) is provided with a first insertion hole (82), and a limiting groove (83) is provided on the inner side of the first insertion hole (82). The outer end of the lower housing (2) is provided with two equally spaced insertion holes (10).

6. A parallel axis speed reducer according to claim 5, characterized in that: The quick-connect assembly (5) includes a plug rod (51), a pressure ring (52) is sleeved on the outer end of the plug rod (51), a telescopic spring (53) is sleeved on the outer end of the plug rod (51), and a knob (55) is fixedly connected to the top of the plug rod (51). The telescopic spring (53) is located between the pressure ring (52) and the knob (55).

7. A parallel shaft reducer according to claim 6, characterized in that: The bottom end of the insertion rod (51) is fixedly connected to two symmetrically distributed limiting blocks (54). The limiting blocks (54) are adapted to the first insertion hole (82) and the second insertion hole (10). The limiting blocks (54) pass through the second insertion hole (10) and the first insertion hole (82) in sequence and then rotate and snap into the limiting groove (83) to form a connection.

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