Gear reduction motor for banknote bundling machine

Abstract

The utility model provides a kind of gear reduction motor for banknote bundling machine, including motor body, the reduction gearbox being set to the front end of motor body, reduction gearbox includes box, box top is equipped with oil hole, oil valve is inserted on oil hole, oil valve includes the valve body being inserted in oil hole, valve body inside has oil cavity, the top surface of valve body is equipped with the oil inlet hole being communicated with the upper end of oil cavity, the bottom surface of valve body is equipped with several lower oil hole being communicated with the lower end of oil cavity, valve platform is movably arranged in oil cavity, sealing spring is arranged in oil cavity, to drive valve platform to go up to block oil inlet hole.This gear reduction motor for banknote bundling machine is provided with oil valve in oil hole, when adding lubricating oil, worker does not need to help screwdriver and other tools, oil injection operation is simple, it is favorable to improve oil injection efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of geared motors, and in particular to a geared motor for a banknote bundling machine. Background Technology

[0002] A geared motor is an integrated unit consisting of a gearbox and a motor. It is typically assembled and supplied as a complete set by specialized gearbox manufacturers. Geared motors are widely used in machinery manufacturing, automation equipment, logistics and transportation, and their performance directly affects the operating efficiency and service life of the entire equipment.

[0003] Chinese Patent CN222522929U discloses a banknote bundling machine with a shifting function, including a frame and an upper banknote pressing panel, a cam assembly, a swing arm, and a lower banknote pressing panel mounted on the frame. The cam assembly has a cam shaft capable of axial movement, with a cam half-ring on the cam shaft. The swing arm has a roller, and the cam half-ring can roll with the roller to drive the swing arm to swing vertically. A shifting fork is slidably connected above the upper banknote pressing panel and is connected to the cam shaft. The cam shaft can move axially under the drive of the shifting fork, so that the roller rolls with the peripheral wall of the cam shaft. A pad assembly supporting the banknotes is detachably connected to the lower banknote pressing panel. The pad assembly has a through groove for the bundling strap to pass through. Currently, the cam assembly of banknote bundling machines is usually driven by a geared motor.

[0004] The existing technical solutions described above have the following drawbacks: During the operation of the geared motor, the gear transmission inside the gearbox relies on lubricating oil for effective lubrication, which is crucial for reducing frictional resistance during gear meshing and minimizing wear. Current mainstream gearbox lubrication designs involve adding lubricating oil through pre-set lubrication holes, and after the lubrication operation is completed, the lubrication holes must be sealed with screws.

[0005] However, this traditional structure has obvious inconveniences in actual operation: every time the worker injects oil, he must repeatedly disassemble and install the sealing screw with the help of tools such as screwdrivers, which not only increases the cumbersomeness of the operation steps, but may also affect the oil injection efficiency due to tool matching problems or improper operation. Utility Model Content

[0006] The problem this utility model aims to solve is to provide a gear reduction motor for a banknote bundling machine that addresses the aforementioned shortcomings in the existing technology, thereby solving the problem of inconvenient oil filling in the existing technology.

[0007] The above-mentioned utility model objective is achieved through the following technical solution: a gear reducer motor for a banknote bundling machine, comprising a motor body and a reduction gearbox disposed at the front end of the motor body. The reduction gearbox includes a housing, an oil injection hole is provided on the top of the housing, and an oil injection valve is inserted into the oil injection hole. The oil injection valve includes a valve body inserted into the oil injection hole, an oil cavity inside the valve body, an oil inlet hole communicating with the upper end of the oil cavity is provided on the top surface of the valve body, and a plurality of oil outlet holes communicating with the lower end of the oil cavity are provided on the bottom surface of the valve body. A valve platform is movably disposed in the oil cavity, and a sealing spring is provided in the oil cavity to drive the valve platform upward to block the oil inlet hole.

[0008] The present invention is further configured such that: the oil inlet is a frustum-shaped hole with the small end facing upward, the valve seat is a frustum-shaped hole with the small end facing upward, and the top side of the valve seat is attached to the oil inlet to block the oil inlet.

[0009] The present invention is further configured such that: an oil-separating sleeve is provided on the bottom wall of the oil cavity, the middle part of the oil-separating sleeve is a spring groove for accommodating the sealing spring, a vertical guide hole is provided through the bottom wall of the spring groove, a vertical guide rod is provided on the bottom surface of the valve platform, the vertical guide rod passes downward through the spring groove and the vertical guide hole in sequence, the vertical guide rod slides with the vertical guide hole, an oil-separating sliding cover is provided on the vertical guide rod and slides with the spring groove, the sealing spring is sleeved on the vertical guide rod, one end of the sealing spring abuts against the bottom surface of the oil-separating sliding cover, and the other end abuts against the bottom wall of the spring groove.

[0010] The present invention is further configured such that an oil-separating sealing ring is fitted on the side wall of the oil-separating sliding cover by means of a groove.

[0011] The present invention is further configured such that a pressing head protruding from the top surface of the valve body is provided on the top surface of the valve platform.

[0012] The present invention is further configured such that: a boss is provided on the top surface of the housing, the oil injection hole is opened through the top surface of the boss, and an outward flange extends outward from the top of the outer side wall of the valve body, the outward flange being glued to the top surface of the boss.

[0013] The present invention is further configured such that: the motor body includes a body and an end cover; the body has an internal mounting cavity; a groove with a diameter larger than the mounting cavity is provided on the end face of the body facing the gearbox; the end cover is inserted into the mounting cavity by an interference fit; and an inserting ring extends outward from the outer side wall of the end cover and engages with the groove.

[0014] The present invention is further configured such that: a connecting groove is provided on the end face of the housing facing the end cover, a bearing seat is embedded in the connecting groove, and the connecting groove and the end cover are connected by an interference fit, and the end cover presses and fixes the bearing seat in the connecting groove.

[0015] The present invention is further configured such that: the motor shaft of the motor body passes through the bearing seat and is coaxially connected to an input gear; a transmission shaft is rotatably arranged in the inner cavity; a small transmission gear and a large transmission gear are coaxially arranged on the transmission shaft; the small transmission gear meshes with the input gear; an output shaft is rotatably arranged in the inner cavity; the end of the output shaft away from the motor body passes through the housing and extends to the outside of the inner cavity; an output gear is coaxially arranged on the output shaft; the output gear meshes with the large transmission gear; and the output gear is located directly below the oil injection hole.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] (1) The gear reduction motor of this banknote bundling machine is equipped with an oil injection valve in the oil injection hole. When adding lubricating oil, the worker does not need to use tools such as screwdrivers. The oil injection operation is simple and helps to improve the oil injection efficiency.

[0018] (2) When the gear reduction motor of this banknote bundling machine is working, the motor body drives the input gear to rotate through the motor shaft. This initial power is transmitted through the input gear and then drives the transmission pinion meshed with it to enter the running state. The rotation of the transmission pinion will synchronously drive the transmission shaft connected to it to rotate. Then the transmission large gear fixed at the other end of the transmission shaft will rotate accordingly. The difference in the number of teeth between the large gear and the small gear will form a preliminary deceleration. The transmission large gear will transmit the power to the output shaft through the output gear. The output shaft will work in a low-speed, high-torque state. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the gear reduction motor used in the banknote bundling machine of this utility model;

[0020] Figure 2 This is an exploded sectional view of the gearbox, end cover, and body of this utility model;

[0021] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0022] In the above attached figures: 1. Motor body; 2. Gearbox; 3. Machine body; 4. Mounting cavity; 5. Slot; 6. End cover; 7. Engraving ring; 8. Housing; 9. Inner cavity; 10. Connecting groove; 11. Bearing seat; 12. Input gear; 13. Drive shaft; 14. Drive bearing; 15. Drive pinion; 16. Drive gear; 17. Output shaft; 18. Output bearing; 19. Output gear; 20. Boss; 21. Oil injection hole; 22. Oil injection valve; 23. Valve body; 24. Outer flange; 25. Oil inlet hole; 26. Oil cavity; 27. Lower oil hole; 28. Valve platform; 29. ​​Press head; 30. Oil separator sleeve; 31. Spring groove; 32. Vertical movement guide hole; 33. Vertical movement guide rod; 34. Oil separator sliding cover; 35. Oil separator sealing ring; 36. Sealing spring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figure 1 As shown, this utility model proposes a geared motor for a banknote bundling machine, including a motor body 1 and a gearbox 2 disposed at the front end of the motor body 1.

[0025] like Figure 1 and 2 As shown, the motor body 1 includes a body 3 and an end cover 6. The body 3 has an internal mounting cavity 4. A groove 5 is formed on the end face of the body 3 facing the gearbox 2. The diameter of the groove 5 is larger than the diameter of the mounting cavity 4. The end of the end cover 6 near the body 3 is inserted into the mounting cavity 4 of the body 3 with an interference fit. The end of the end cover 6 away from the body 3 protrudes from the end face of the body 3. A circular ring 7 extends outward from the outer wall of the end cover 6. The ring 7 is inserted into the groove 5 of the body 3 with an interference fit, thereby limiting the axial runout of the end cover 6.

[0026] like Figure 1 and 2 As shown, the gearbox 2 includes a housing 8, which has an inner cavity 9. A connecting groove 10 is formed on the end face of the housing 8 facing the end cover 6. The connecting groove 10 is a circular groove, and its diameter is larger than that of the inner cavity 9. The connecting groove 10 and the end cover 6 are connected by an interference fit. A bearing seat 11 is embedded in the connecting groove 10. The bearing seat 11 is a circular plate, and the end cover 6 presses and fixes the bearing seat 11 in the connecting groove 10.

[0027] like Figure 1 and 2 As shown, the motor shaft of the motor body 1 passes through the bearing housing 11 and is coaxially connected to an input gear 12. The input gear 12 is located in the inner cavity 9 of the housing 8 and is driven to rotate by the motor body 1. A transmission shaft 13 is rotatably mounted in the inner cavity 9, between the cavity wall of the inner cavity 9 and the bearing housing 11. Both the cavity wall of the inner cavity 9 and the bearing housing 11 are fitted with transmission bearings 14 by slotting. The transmission bearings 14 are fitted onto both ends of the transmission shaft 13. A small transmission gear 15 and a large transmission gear 16 are coaxially mounted on the transmission shaft 13 by key connection. The small transmission gear 15 meshes with the input gear 12.

[0028] like Figure 1 and 2As shown, an output shaft 17 is rotatably mounted in the inner cavity 9. The output shaft 17 is parallel to the transmission shaft 13. The end of the output shaft 17 facing away from the motor body 1 passes through the housing 8 and extends to the outside of the inner cavity 9. Output bearings 18 are installed in slots on the cavity wall and bearing housing 11 of the inner cavity 9. One output bearing 18 is fitted in the middle of the output shaft 17, and the other output bearing 18 is fitted in the end of the output shaft 17. An output gear 19 is coaxially mounted on the output shaft 17 by means of a key connection. The output gear 19 meshes with the transmission gear 16.

[0029] When the gear reduction motor of this banknote bundling machine is working, the motor body 1 drives the input gear 12 to rotate through the motor shaft. This initial power is transmitted through the input gear 12 and then drives the transmission pinion 15 meshing with it to enter the running state. The rotation of the transmission pinion 15 will synchronously drive the transmission shaft 13 connected to it to rotate. Then the transmission gear 16 fixed at the other end of the transmission shaft 13 will rotate accordingly. The difference in the number of teeth between the large gear and the small gear will form an initial deceleration. The transmission gear 16 will transmit the power to the output shaft 17 through the output gear 19. The output shaft 17 will work in a low-speed, high-torque state.

[0030] like Figure 1 and 3 As shown, in this embodiment, a cylindrical boss 20 is fixedly connected to the top surface of the housing 8. An oil injection hole 21 is provided on the top surface of the boss 20. The oil injection hole 21 is a circular hole and is located directly above the output gear 19. An oil injection valve 22 is inserted into the oil injection hole 21.

[0031] like Figure 3 As shown, the oil injection valve 22 includes a cylindrical valve body 23, which is inserted into the oil injection hole 21. The top of the outer side wall of the valve body 23 extends outward with an outward flange 24, which is glued to the top surface of the boss 20. The outward flange 24 and the boss 20 are glued together by applying sealant.

[0032] like Figure 3 As shown, an oil inlet hole 25 is provided at the center of the top surface of the valve body 23. The oil inlet hole 25 is a frustum-shaped hole with the small end of the oil inlet hole 25 facing upward. An oil cavity 26 is provided inside the valve body 23. The oil cavity 26 is connected to the lower end of the oil inlet hole 25 and is a cylindrical chamber. Several oil drain holes 27 are provided at equal intervals around the bottom surface of the valve body 23. The oil drain holes 27 are connected to the oil cavity 26. The lubricating oil in the oil cavity 26 drips onto the output gear 19 through the oil drain holes 27.

[0033] like Figure 3As shown, a frustum-shaped valve seat 28 is movably disposed within the oil chamber 26. The small end of the valve seat 28 faces upward. When the top side of the valve seat 28 is in contact with the wall of the oil inlet 25, the valve seat 28 seals the oil inlet 25. A pressing head 29 is coaxially fixed to the center of the top surface of the valve seat 28. The pressing head 29 is cylindrical and protrudes from the top surface of the valve body 23, allowing the worker to easily press the valve seat 28 through the pressing head 29.

[0034] like Figure 3 As shown, a cylindrical oil separator sleeve 30 is coaxially fixed at the center of the bottom wall of the oil cavity 26. The middle part of the oil separator sleeve 30 is a spring groove 31, which is a circular groove. A vertical guide hole 32 is provided through the bottom wall of the spring groove 31. The vertical guide hole 32 is a circular hole, and the diameter of the vertical guide hole 32 is smaller than the diameter of the spring groove 31.

[0035] like Figure 3 As shown, a vertical guide rod 33 is coaxially fixed at the center of the bottom surface of the valve seat 28. The vertical guide rod 33 is cylindrical and passes downward through the spring groove 31 and the vertical guide hole 32 in sequence. The vertical guide rod 33 slides with the vertical guide hole 32, so the pressing head 29, the valve seat 28 and the vertical guide rod 33 can slide vertically relatively stably.

[0036] like Figure 3 As shown, an oil-separating sliding cover 34 is coaxially fixed to the middle of the vertical guide rod 33. The oil-separating sliding cover 34 is in the shape of a circular plate. The oil-separating sliding cover 34 slides in conjunction with the spring groove 31. An oil-separating sealing ring 35 is fitted on the side wall of the oil-separating sliding cover 34 by means of a groove, which helps to improve the sealing between the oil-separating sliding cover 34 and the spring groove 31.

[0037] like Figure 3 As shown, a sealing spring 36 is fitted on the vertical guide rod 33. The sealing spring 36 is located in the spring groove 31. One end of the sealing spring 36 abuts against the bottom surface of the oil-separating sliding cover 34, and the other end abuts against the bottom wall of the spring groove 31. The sealing spring 36 is used to push the oil-separating sliding cover 34 upward, thereby driving the vertical guide rod 33 and the valve platform 28 upward until the valve platform 28 abuts against the wall of the oil inlet hole 25. At this time, the oil injection valve 22 is in the closed state.

[0038] The detailed working process of this embodiment is as follows:

[0039] S1, the motor body 1 drives the input gear 12 to rotate via the motor shaft. This initial power, after being transmitted through the input gear 12, immediately drives the transmission pinion 15 meshing with it to enter the operating state. The rotation of the transmission pinion 15 synchronously drives the transmission shaft 13, which is coaxially connected to it, to rotate. The transmission gear 16, fixed at the other end of the transmission shaft 13, then rotates accordingly. The difference in the number of teeth between the large gear and the small gear forms an initial deceleration. The transmission gear 16 transmits the power to the output shaft 17 through the output gear 19.

[0040] At this time, gearbox 2 is in operation;

[0041] S2, the worker pushes the valve platform 28 downward by pressing down the pressing head 29. The side of the valve platform 28 separates from the wall of the oil inlet hole 25. At this time, the oil injection valve 22 is in the open state. The worker injects oil into the oil injection valve 22 through the oil inlet hole 25. Since the valve platform 28 is a frustum shape with the small end facing upward, the lubricating oil dripping on the side of the valve platform 28 will flow down along the inclined side of the valve platform 28. The lubricating oil drips onto the output gear 19 after passing through the lower oil hole 27 and the oil injection hole 21 in sequence. Since the gearbox 2 is in the running state, the lubricating oil can be distributed more evenly and fully on each gear.

[0042] The geared motor used in this banknote bundling machine has an oil injection valve 22 installed in the oil injection hole 21. When adding lubricating oil, the worker does not need to use tools such as screwdrivers, making the oil injection operation simple and improving the oil injection efficiency.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A geared motor for a banknote bundling machine, comprising a motor body (1) and a gearbox (2) disposed at the front end of the motor body (1), characterized in that: The gearbox (2) includes a housing (8), with an oil injection hole (21) on the top of the housing (8). An oil injection valve (22) is inserted into the oil injection hole (21). The oil injection valve (22) includes a valve body (23) inserted into the oil injection hole (21). The valve body (23) has an oil chamber (26) inside. An oil inlet hole (25) communicating with the upper end of the oil chamber (26) is opened on the top surface of the valve body (23). Several lower oil holes (27) communicating with the lower end of the oil chamber (26) are opened on the bottom surface of the valve body (23). A valve platform (28) is movably arranged in the oil chamber (26). A sealing spring (36) is provided in the oil chamber (26) to drive the valve platform (28) to move upward to block the oil inlet hole (25).

2. The gear reduction motor for a banknote bundling machine according to claim 1, characterized in that: The oil inlet (25) is a frustum-shaped hole with the small end facing upwards, and the valve seat (28) is a frustum-shaped hole with the small end facing upwards. The top side of the valve seat (28) is attached to the oil inlet (25) to block the oil inlet (25).

3. The gear reduction motor for a banknote bundling machine according to claim 1, characterized in that: An oil-separating sleeve (30) is provided on the bottom wall of the oil cavity (26). The middle part of the oil-separating sleeve (30) is a spring groove (31) for accommodating the sealing spring (36). A vertical guide hole (32) is provided through the bottom wall of the spring groove (31). A vertical guide rod (33) is provided on the bottom surface of the valve platform (28). The vertical guide rod (33) passes through the spring groove (31) and the vertical guide hole (32) in sequence. The vertical guide rod (33) is slidably engaged with the vertical guide hole (32). An oil-separating sliding cover (34) is provided on the vertical guide rod (33) and is slidably engaged with the spring groove (31). The sealing spring (36) is sleeved on the vertical guide rod (33). One end of the sealing spring (36) abuts against the bottom surface of the oil-separating sliding cover (34), and the other end abuts against the bottom wall of the spring groove (31).

4. The gear reduction motor for a banknote bundling machine according to claim 3, characterized in that: An oil-separating sealing ring (35) is fitted on the side wall of the oil-separating sliding cover (34) by means of a groove.

5. A gear reduction motor for a banknote bundling machine according to claim 1, characterized in that: A pressing head (29) protruding from the top surface of the valve body (23) is provided on the top surface of the valve platform (28).

6. The gear reduction motor for a banknote bundling machine according to claim 1, characterized in that: The top surface of the housing (8) is provided with a boss (20), the oil injection hole (21) is opened through the top surface of the boss (20), and the top of the outer wall of the valve body (23) extends outward with an outward flange (24), which is glued to the top surface of the boss (20).

7. A gear reduction motor for a banknote bundling machine according to claim 1, characterized in that: The motor body (1) includes a body (3) and an end cover (6). The body (3) has an installation cavity (4) inside. The end face of the body (3) facing the gearbox (2) has a groove (5) with a diameter larger than the installation cavity (4). The end cover (6) is inserted into the installation cavity (4) by an interference fit. The outer side wall of the end cover (6) has an insert ring (7) that engages with the groove (5).

8. A gear reduction motor for a banknote bundling machine according to claim 7, characterized in that: The box (8) has a connecting groove (10) on the end face facing the end cover (6). A bearing seat (11) is embedded in the connecting groove (10). The connecting groove (10) and the end cover (6) are connected by an interference fit. The end cover (6) presses and fixes the bearing seat (11) in the connecting groove (10). The box (8) has an inner cavity (9).

9. A gear reduction motor for a banknote bundling machine according to claim 8, characterized in that: The motor shaft of the motor body (1) passes through the bearing seat (11) and is coaxially connected to the input gear (12). A transmission shaft (13) is rotatably arranged in the inner cavity (9). A small transmission gear (15) and a large transmission gear (16) are coaxially arranged on the transmission shaft (13). The small transmission gear (15) meshes with the input gear (12). An output shaft (17) is rotatably arranged in the inner cavity (9). The end of the output shaft (17) away from the motor body (1) passes through the housing (8) and extends to the outside of the inner cavity (9). An output gear (19) is coaxially arranged on the output shaft (17). The output gear (19) meshes with the large transmission gear (16). The output gear (19) is located directly below the oil injection hole (21).

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