Tailstock spindle of numerical control machine tool

Abstract

The utility model relates to the technical field of tailstock spindles, and provides a numerical control machine tool tailstock spindle which comprises a machine tool body and a mounting plate, a moving structure is arranged on one side of the top end of the machine tool body, and the mounting plate is fixed at the top end of the moving structure. The lubricating structure is arranged, the sealing plug is opened, lubricating oil is injected into the oil injection pipe, the lubricating oil enters the oil storage frame and is absorbed by the sponge, the first electric push rod is started, the first electric push rod drives the pressing plate to move in the oil storage frame, and through pressing of the pressing plate, the lubricating oil is injected into the oil injection pipe. According to the device, the sponge is arranged on the outer side of the driven gear, so that lubricating oil in the sponge falls to the outer side of the driven gear through the oil outlet, and when the driven gear and the driving gear operate, the lubricating oil adheres to the outer side of the driving gear, so that the driving gear and the driven gear operate more smoothly, energy loss is reduced, and the function of facilitating automatic lubrication of the device is achieved; therefore, the applicability of the tailstock spindle of the numerical control machine tool in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tailstock spindles, in particular to a tailstock spindle for a numerically controlled machine tool. Background Art

[0002] The tailstock is the core component of the CNC lathe. When machining shaft parts, the tailstock is used to tighten the workpiece to ensure the stability of the machining. The tailstock spindle is an important component of the CNC machine tool. It is mainly used to support the machining of long shaft parts. The support and rotation function of the tailstock spindle can ensure the stability and accuracy of the machining process. Therefore, a CNC machine tailstock spindle is used.

[0003] To this end, the patent with announcement number CN216540879U discloses a tailstock spindle of a CNC machine tool, including a spindle box and a clamping assembly, a fixed bearing is fixed in the middle of one end of the spindle box, a support plate is fixed at the bottom end of one side of the spindle box, and a spindle body is rotatably connected between the support plate and the fixed bearing, the clamping assembly includes a shell, two clamping plates, six springs and four fixing holes, the shell is fixedly arranged at the other end of the spindle body, and the six springs are respectively fixed at the top end and the bottom end of the shell. The beneficial effects of the utility model are as follows: by setting the inner sides of one end of the two clamping plates to rounded corners, the insertion of the workpiece can be facilitated, and the two clamping plates can be retracted by the six springs, thereby adapting to workpieces of different sizes and having wide adaptability; a plurality of fan blades generate negative pressure wind force under the rotation of the sleeve to suck the coolant into the sleeve, thereby avoiding the coolant being thrown out due to the rotation of the spindle body, thereby improving the cooling effect;

[0004] When the tailstock spindle of the CNC machine tool mentioned above is in use, a plurality of fan blades generate negative pressure wind force under the rotation of the sleeve to suck the coolant into the interior of the sleeve, thereby avoiding the coolant being thrown out due to the rotation of the spindle body and improving the cooling effect. However, it is inconvenient to automatically lubricate during use, and it is inconvenient to reduce direct contact between gears, thereby inconvenient to reduce the risk of wear and abrasion, making it less suitable for use. Utility Model Content

[0005] The utility model aims to provide a tailstock spindle for a numerically controlled machine tool, so as to solve the defect that the tailstock spindle for the existing numerically controlled machine tool is inconvenient to automatically lubricate.

[0006] In order to solve the above technical problems, the present utility model provides the following technical solutions: A tailstock spindle for a CNC machine tool comprises a machine tool body and a mounting plate;

[0007] A moving structure is provided on one side of the top of the machine tool body, a mounting plate is fixed on the top of the moving structure, a box is fixed on the top of the mounting plate, a bearing is provided on one side of the inside of the box, and a sealing structure is provided inside the box on the side of the bearing;

[0008] A support plate is fixed inside the box, a main shaft body is passed through the support plate, a transmission assembly is provided at one end of the main shaft body, and the other end of the main shaft body extends to the outside of the box and is fixed with a fixing structure;

[0009] A lubrication structure is provided on one side of the top of the box body, and the lubrication structure includes a first electric push rod, a sealing plug, an elastic rope, an oil filling pipe, an oil storage frame, an oil outlet, a sponge and a pressure plate. The first electric push rod passes through one side of the top of the box body, and an oil storage frame is fixed on the inner wall of the box body at the bottom of the first electric push rod, and an oil outlet is passed through the bottom of the oil storage frame. A sponge is provided inside the oil storage frame, and a pressure plate is provided on the top of the sponge. An oil filling pipe passes through the inside of the box body on one side of the first electric push rod, and a sealing plug is provided on the top of the oil filling pipe, and an elastic rope is fixed to one side of the sealing plug.

[0010] When using the device, by providing a lubrication structure, the device can realize the function of automatic lubrication, thereby improving the applicability of the tailstock spindle of the CNC machine tool when in use; by providing a moving structure, the device can realize the function of facilitating the fixing of workpieces of different lengths, thereby improving the working efficiency of the tailstock spindle of the CNC machine tool when in use; by providing a fixing structure, the device can realize the function of facilitating the fixing of workpieces of different sizes, thereby improving the convenience of the tailstock spindle of the CNC machine tool when in use; by providing a sealing structure, the device can realize the function of facilitating sealing, thereby improving the comfort of the tailstock spindle of the CNC machine tool when in use.

[0011] Preferably, the movable structure includes a slide rail, a slide seat, a threaded rod, a fixed plate, a movable seat, and a servo motor. The threaded rod is arranged on one side of the top of the machine tool body. Fixed plates are provided at both ends of the threaded rod. A servo motor is mounted on the outer wall of the fixed plate at one end of the threaded rod. The outer side of the threaded rod is threadedly connected to the movable seat. Slide rails are fixed to the top of the machine tool body on both sides of the threaded rod. Slide seats are provided on the outer side of the top of the slide rails. When the servo motor is started, the servo motor drives the threaded rod to rotate, which drives the movable seat to move outside the threaded rod. The movable seat drives the slide seat to move outside the slide rail via the mounting plate.

[0012] Preferably, the slide and rail form a sliding structure, wherein the top of the slide is fixedly connected to the bottom of the mounting plate, one end of the threaded rod extends outside the fixed plate and is fixedly connected to the output end of the servo motor, and the top of the movable seat is fixedly connected to the bottom of the mounting plate. Under the action of the slide, the movable seat is prevented from rotating with the threaded rod, thereby facilitating the function of adapting to workpieces of different lengths.

[0013] Preferably, the bottom end of the first electric push rod is fixedly connected to the top end of the pressure plate, and the bottom end of the oil filling pipe is connected to one side of the oil storage frame. The sealing plug is opened, and lubricating oil is injected into the interior of the oil filling pipe, so that the lubricating oil enters the interior of the oil storage frame and is absorbed by the sponge. The first electric push rod is activated, and the first electric push rod drives the pressure plate to move inside the oil storage frame. The pressure of the pressure plate causes the lubricating oil inside the sponge to fall to the outside of the driven gear through the oil outlet. When the driven gear and the driving gear are in operation, the lubricating oil will adhere to the outside of the driving gear, making the driving gear and the driven gear operate more smoothly and reducing energy loss.

[0014] Preferably, the fixing structure includes a housing, a second electric push rod, a slide bar, a clamping plate, and a rubber pad. The housing is fixed to the other end of the spindle body. The second electric push rod extends through both sides of the housing. A clamping plate is fixed to one end of the second electric push rod. A rubber pad is fixed to one side of the clamping plate. A slide bar extends through the housing on one side of the second electric push rod. When the workpiece to be processed is moved into the housing, the second electric push rod is activated, which drives the clamping plate to move. The clamping plate drives the slide bar to move within the housing. The slide bar enhances the stability of the clamping plate during movement.

[0015] Preferably, the slide rod and the housing form a sliding structure, and one end of the slide rod is fixedly connected to one side of a clamping plate. The clamping plate drives the rubber pads to move to both sides of the workpiece to be processed, and under the action of the rubber pads, the friction between the clamping plate and the workpiece to be processed is increased.

[0016] Preferably, the sealing structure includes a placement groove, a sealing ring, and a cavity. The placement groove is provided inside the housing on one side of the bearing, a sealing ring is disposed inside the placement groove, and a cavity is disposed inside the sealing ring. The sealing ring is moved into the placement groove, thereby engaging and securing the sealing ring and the housing. Under the action of the cavity, one side of the sealing ring contacts the outer side of the main shaft body.

[0017] Preferably, the sealing ring and the housing form a snap-fit ​​structure via a placement groove, and one side of the sealing ring contacts the outer side of the main shaft body. Under the action of the sealing ring, dust is prevented from entering the interior of the bearing.

[0018] Preferably, the transmission assembly includes a driving motor, a driving gear and a driven gear, the driven gear is fixed to one end of the main shaft body, one side of the driven gear is meshed with the driving gear, and the driving motor is installed on the outer wall of the box body on one side of the driving gear.

[0019] Preferably, the output end of the driving motor extends to the inside of the box body and is fixedly connected with one side of the driving gear, and the driven gear is located directly below the oil outlet.

[0020] The numerical control machine tool tailstock main shaft has the advantages that:

[0021] By setting the lubricating structure, opening the sealing plug, injecting lubricating oil into the inside of the oil injection pipe, and allowing the lubricating oil to enter the inside of the oil storage frame and be absorbed by the sponge, the first electric push rod is started, the first electric push rod drives the pressing plate to move in the inside of the oil storage frame, the lubricating oil in the inside of the sponge falls to the outside of the driven gear through the oil outlet under the pressing of the pressing plate, and when the driven gear and the driving gear are running, the lubricating oil is adhered to the outside of the driving gear, so that the driving gear and the driven gear run more smoothly, energy loss is reduced, the automatic lubrication function of the device is realized, and the applicability of the numerical control machine tool tailstock main shaft during use is improved.

[0022] By setting the moving structure, the servo motor is started, the servo motor drives the threaded rod to rotate, the threaded rod drives the moving seat to move outside the threaded rod, the moving seat drives the sliding seat to move outside the sliding rail through the mounting plate, and the moving seat is prevented from rotating with the threaded rod under the action of the sliding seat, so that the device is convenient for different length workpieces, the function of fixing different length workpieces is realized, and the working efficiency of the numerical control machine tool tailstock main shaft during use is improved.

[0023] By setting the fixing structure, the workpiece to be processed is moved to the inside of the shell, the second electric push rod is started, the second electric push rod drives the clamping plate to move, the clamping plate drives the sliding rod to move in the inside of the shell, the stability of the clamping plate during movement is enhanced under the action of the sliding rod, the clamping plate drives the rubber pad to move to the two sides of the workpiece to be processed, the friction force between the clamping plate and the workpiece to be processed is increased under the action of the rubber pad, the device is convenient for fixing workpieces of different sizes, and the convenience of the numerical control machine tool tailstock main shaft during use is improved.

[0024] By setting the sealing structure, the sealing ring is moved to the inside of the placing groove, so that the sealing ring and the box body are clamped and fixed with each other, one side of the sealing ring is in contact with the outside of the main shaft body under the action of the cavity, dust is prevented from entering the inside of the bearing under the action of the sealing ring, the sealing function of the device is realized, and the comfort of the numerical control machine tool tailstock main shaft during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0027] Figure 3 This is an enlarged schematic diagram of the main cross-section of the lubrication structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixed structure section of the utility model;

[0029] Figure 5 This is a schematic diagram of a top-view cross-sectional structure of the sealing structure of the present invention;

[0030] Figure 6 For the utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0031] Explanation of reference numerals in the figure: 1. machine tool body; 2. moving structure; 201. slide rail; 202. slide seat; 203. threaded rod; 204. fixed plate; 205. moving seat; 206. servo motor; 3. mounting plate; 4. housing; 5. lubrication structure; 501. first electric push rod; 502. sealing plug; 503. elastic rope; 504. oil filling pipe; 505. oil storage frame; 506. oil outlet; 507. Sponge; 508, pressure plate; 6, fixing structure; 601, housing; 602, second electric push rod; 603, slide rod; 604, clamping plate; 605, rubber pad; 7, main shaft body; 8, sealing structure; 801, placement groove; 802, sealing ring; 803, cavity; 9, bearing; 10, support plate; 11, transmission assembly; 1101, drive motor; 1102, driving gear; 1103, driven gear. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figures 1-6The utility model provides a CNC machine tool tailstock spindle, including a machine tool body 1 and a mounting plate 3. A moving structure 2 is provided on one side of the top of the machine tool body 1. The moving structure 2 includes a slide rail 201, a slide seat 202, a threaded rod 203, a fixed plate 204, a moving seat 205 and a servo motor 206. The threaded rod 203 is provided on one side of the top of the machine tool body 1. Both ends of the threaded rod 203 are provided with a fixed plate 204. A servo motor 206 is installed on the outer wall of the fixed plate 204 at one end of the threaded rod 203. The outer side of the threaded rod 203 is threadedly connected to a moving seat 205, and the top of the machine tool body 1 on both sides of the threaded rod 203 is fixed with a slide rail 201. The outer side of the top of the slide rail 201 is provided with a slide seat 202. The slide seat 202 and the slide rail 201 constitute a sliding structure. The top of the slide seat 202 is fixedly connected to the bottom end of the mounting plate 3. One end of the threaded rod 203 extends to the outside of the fixed plate 204 and is fixedly connected to the output end of the servo motor 206. The top of the moving seat 205 is fixedly connected to the bottom end of the mounting plate 3.

[0034] Reference Figure 1 and Figure 2 As shown, the servo motor 206 is started, and the servo motor 206 drives the threaded rod 203 to rotate, and the threaded rod 203 drives the movable seat 205 to move outside the threaded rod 203, and the movable seat 205 drives the slide 202 to move outside the slide rail 201 through the mounting plate 3. Under the action of the slide 202, the movable seat 205 is prevented from rotating with the threaded rod 203, which is convenient for use with workpieces of different lengths.

[0035] A mounting plate 3 is fixed to the top of the movable structure 2, and a box body 4 is fixed to the top of the mounting plate 3. A bearing 9 is provided on one side of the interior of the box body 4, and a sealing structure 8 is provided inside the box body 4 on the side of the bearing 9. The sealing structure 8 includes a placement groove 801, a sealing ring 802 and a cavity 803. The placement groove 801 is opened inside the box body 4 on the side of the bearing 9, and a sealing ring 802 is provided inside the placement groove 801. A cavity 803 is provided inside the sealing ring 802. The sealing ring 802 and the box body 4 form a locking structure through the placement groove 801, and one side of the sealing ring 802 is in contact with the outer side of the main shaft body 7.

[0036] Reference Figure 5 and Figure 6 As shown, the sealing ring 802 is moved to the inside of the placement groove 801, so that the sealing ring 802 and the box body 4 are clamped and fixed to each other. Under the action of the cavity 803, one side of the sealing ring 802 is in contact with the outside of the main shaft body 7. Under the action of the sealing ring 802, dust is prevented from entering the interior of the bearing 9.

[0037] The interior of the box body 4 is fixed with a support plate 10, and the interior of the support plate 10 is penetrated by the main shaft body 7. A transmission assembly 11 is provided at one end of the main shaft body 7. The other end of the main shaft body 7 extends to the outside of the box body 4 and is fixed with a fixing structure 6. The fixing structure 6 includes a shell 601, a second electric push rod 602, a slide rod 603, a clamping plate 604 and a rubber pad 605. The shell 601 is fixed to the other end of the main shaft body 7. The second electric push rod 602 is penetrated on both sides of the shell 601. The clamping plate 604 is fixed at one end of the second electric push rod 602. The rubber pad 605 is fixed on one side of the clamping plate 604. The shell 601 on one side of the second electric push rod 602 A sliding rod 603 runs through the interior, and the sliding rod 603 and the housing 601 constitute a sliding structure. One end of the sliding rod 603 is fixedly connected to one side of the clamping plate 604. The transmission assembly 11 includes a driving motor 1101, a driving gear 1102 and a driven gear 1103. The driven gear 1103 is fixed to one end of the main shaft body 7, and one side of the driven gear 1103 is meshed with the driving gear 1102. The driving motor 1101 is installed on the outer wall of the box body 4 on the side of the driving gear 1102. The output end of the driving motor 1101 extends to the interior of the box body 4 and is fixedly connected to one side of the driving gear 1102. The driven gear 1103 is located directly below the oil outlet 506.

[0038] Reference Figure 4 and Figure 5 As shown, the workpiece to be processed is moved to the inside of the shell 601, and the second electric push rod 602 is started. The second electric push rod 602 drives the clamping plate 604 to move, and the clamping plate 604 drives the slide bar 603 to move inside the shell 601. Under the action of the slide bar 603, the stability of the clamping plate 604 during movement is enhanced. The clamping plate 604 drives the rubber pad 605 to move to both sides of the workpiece to be processed. Under the action of the rubber pad 605, the friction between the clamping plate 604 and the workpiece to be processed is increased, and the drive motor 1101 is started. The drive motor 1101 drives the driving gear 1102 to rotate inside the box 4, and the driving gear 1102 drives the driven gear 1103 to rotate. The driven gear 1103 drives the shell 601 to rotate through the spindle body 7, thereby facilitating the rotation of the workpiece.

[0039] A lubrication structure 5 is provided on one side of the top of the box body 4. The lubrication structure 5 includes a first electric push rod 501, a sealing plug 502, an elastic rope 503, an oil filling pipe 504, an oil storage frame 505, an oil outlet 506, a sponge 507 and a pressure plate 508. The first electric push rod 501 passes through one side of the top of the box body 4. An oil storage frame 505 is fixed on the inner wall of the box body 4 at the bottom of the first electric push rod 501. The bottom of the oil storage frame 505 passes through an oil outlet 506. A sponge 507 is provided inside the oil storage frame 505, and a pressure plate 508 is provided on the top of the sponge 507. An oil filling pipe 504 runs through the inside of the box body 4 on one side of the first electric push rod 501, and a sealing plug 502 is provided on the top of the oil filling pipe 504. An elastic rope 503 is fixed to one side of the sealing plug 502. The bottom end of the first electric push rod 501 is fixedly connected to the top of the pressure plate 508, and the bottom end of the oil filling pipe 504 is communicated with one side of the oil storage frame 505.

[0040] Reference Figure 2 and Figure 3 As shown, the sealing plug 502 is opened, and the lubricating oil is injected into the interior of the oil filling pipe 504, so that the lubricating oil enters the interior of the oil storage frame 505 and is absorbed by the sponge 507. The first electric push rod 501 is started, and the first electric push rod 501 drives the pressure plate 508 to move inside the oil storage frame 505. Through the pressing of the pressure plate 508, the lubricating oil inside the sponge 507 falls to the outside of the driven gear 1103 through the oil outlet 506. When the driven gear 1103 and the driving gear 1102 are in operation, the lubricating oil will stick to the outside of the driving gear 1102, making the driving gear 1102 and the driven gear 1103 run more smoothly and reducing energy loss.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tailstock spindle for a CNC machine tool, comprising a machine tool body (1) and a mounting plate (3); Its characteristics are: A moving structure (2) is provided on one side of the top of the machine tool body (1), a mounting plate (3) is fixed on the top of the moving structure (2), a box (4) is fixed on the top of the mounting plate (3), a bearing (9) is provided on one side of the interior of the box (4), and a sealing structure (8) is provided on the interior of the box (4) on one side of the bearing (9); A support plate (10) is fixed inside the box (4), a main shaft body (7) is passed through the inside of the support plate (10), a transmission assembly (11) is provided at one end of the main shaft body (7), and the other end of the main shaft body (7) extends to the outside of the box (4) and is fixed with a fixing structure (6); A lubricating structure (5) is provided on one side of the top of the box body (4), and the lubricating structure (5) comprises a first electric push rod (501), a sealing plug (502), an elastic rope (503), an oil filling pipe (504), an oil storage frame (505), an oil outlet (506), a sponge (507) and a pressing plate (508). The first electric push rod (501) passes through one side of the top of the box body (4), and an oil storage is fixed on the inner wall of the box body (4) at the bottom of the first electric push rod (501). The oil storage frame (505) is provided with an oil outlet (506) at the bottom thereof, a sponge (507) is provided inside the oil storage frame (505), a pressure plate (508) is provided at the top of the sponge (507), an oil filling pipe (504) is provided inside the box (4) on one side of the first electric push rod (501), a sealing plug (502) is provided at the top of the oil filling pipe (504), and an elastic rope (503) is fixed to one side of the sealing plug (502).

2. The tailstock spindle of a CNC machine tool according to claim 1, characterized in that: The movable structure (2) comprises a slide rail (201), a slide seat (202), a threaded rod (203), a fixed plate (204), a movable seat (205) and a servo motor (206); the threaded rod (203) is arranged on one side of the top of the machine tool body (1); fixed plates (204) are arranged at both ends of the threaded rod (203); a servo motor (206) is installed on the outer wall of the fixed plate (204) at one end of the threaded rod (203); the outer side of the threaded rod (203) is threadedly connected to the movable seat (205); the top of the machine tool body (1) on both sides of the threaded rod (203) is fixed with a slide rail (201); and the outer side of the top of the slide rail (201) is provided with a slide seat (202).

3. The tailstock spindle of a CNC machine tool according to claim 2, characterized in that: The slide seat (202) and the slide rail (201) constitute a sliding structure, the top end of the slide seat (202) is fixedly connected to the bottom end of the mounting plate (3), one end of the threaded rod (203) extends to the outside of the fixed plate (204) and is fixedly connected to the output end of the servo motor (206), and the top end of the movable seat (205) is fixedly connected to the bottom end of the mounting plate (3).

4. The tailstock spindle of a CNC machine tool according to claim 1, characterized in that: The bottom end of the first electric push rod (501) is fixedly connected to the top end of the pressure plate (508), and the bottom end of the oil filling pipe (504) is connected to one side of the oil storage frame (505).

5. The tailstock spindle of a CNC machine tool according to claim 1, characterized in that: The fixing structure (6) includes a shell (601), a second electric push rod (602), a slide rod (603), a clamping plate (604) and a rubber pad (605); the shell (601) is fixed to the other end of the main shaft body (7); the second electric push rod (602) is passed through both sides of the shell (601); one end of the second electric push rod (602) is fixed with a clamping plate (604); one side of the clamping plate (604) is fixed with a rubber pad (605); and the slide rod (603) is passed through the inside of the shell (601) on one side of the second electric push rod (602).

6. The tailstock spindle of a CNC machine tool according to claim 5, characterized in that: The sliding rod (603) and the housing (601) form a sliding structure, and one end of the sliding rod (603) is fixedly connected to one side of the clamping plate (604).

7. The tailstock spindle of a CNC machine tool according to claim 1, characterized in that: The sealing structure (8) comprises a placement groove (801), a sealing ring (802) and a cavity (803); the placement groove (801) is opened inside the box body (4) on one side of the bearing (9); the placement groove (801) is provided with a sealing ring (802); and the sealing ring (802) is provided with a cavity (803) inside.

8. The tailstock spindle of a CNC machine tool according to claim 7, characterized in that: The sealing ring (802) and the box body (4) form a snap-fit ​​structure via the placement groove (801), and one side of the sealing ring (802) contacts the outer side of the main shaft body (7).

9. The tailstock spindle of a CNC machine tool according to claim 1, characterized in that: The transmission assembly (11) comprises a driving motor (1101), a driving gear (1102) and a driven gear (1103); the driven gear (1103) is fixed to one end of the main shaft body (7); one side of the driven gear (1103) is meshedly connected with the driving gear (1102); and the driving motor (1101) is mounted on the outer wall of the box (4) on one side of the driving gear (1102).

10. The tailstock spindle of a CNC machine tool according to claim 9, characterized in that: The output end of the driving motor (1101) extends to the interior of the box (4) and is fixedly connected to one side of the driving gear (1102), and the driven gear (1103) is located directly below the oil outlet (506).

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