Oil seal assembly for a gear box

Abstract

The utility model discloses oil seal assembly device of gear box solves the technical problem of the oil seal assembly device of gear box in the prior art of hard operation and oil seal positioning inaccuracy. The utility model discloses oil seal assembly device of gear box, including work table, positioning sleeve, first drive arrangement, guide rod, second drive arrangement and press -fitting cover, and the first drive arrangement drives the ascending and descending movement of the guide plate, and the guide plate has the first position higher than gear box and the second position lower than the first position, the guide hole is equipped on the guide plate, the guide hole is coaxial with the mounting hole with the cooperation of positioning sleeve when the guide plate drops to the second position, and the press -fitting cover is driven to the ascending and descending movement with the third position higher than gear box and the fourth position lower than the third position by the second drive arrangement, and the press -fitting cover drops to the fourth position and presses the oil seal in the mounting hole in the guide hole.

Description

Technical Field

[0001] This utility model relates to the technical field of gearbox component assembly devices, and in particular to an oil seal assembly device for gearboxes. Background Technology

[0002] The oil seal of the gearbox, as a key component of the gearbox, plays a sealing role at the gear shaft, isolating the inside and outside of the gearbox, preventing the loss of lubricating grease in the gearbox, and also preventing external dust, moisture and other substances from entering the gearbox.

[0003] Oil seals are usually installed manually by hammering them into the mounting holes of the gearbox. However, manual operation makes it difficult to maintain circumferential synchronization during the installation process, resulting in poor oil seal consistency and uneven stress on the oil seal, which can lead to deformation or damage to the mounting hole walls.

[0004] In the existing technology, there are also oil seal press-fitting machines, such as the Chinese utility model patent with publication number CN214922079U, entitled "Dual-station Composite Skeleton Oil Seal Press-fitting Machine for Box-type Parts". However, this press-fitting machine requires operators to separately mount the oil seal and gearbox onto the positioning pins. On the one hand, this is time-consuming and labor-intensive; on the other hand, manual operation makes it difficult to ensure the positioning accuracy between the oil seal and the gearbox. Utility Model Content

[0005] This utility model proposes an oil seal assembly device for gearboxes to overcome the shortcomings of the prior art, thereby solving the technical problems of laborious operation and inaccurate oil seal positioning in the prior art.

[0006] To achieve the above technical objectives, the gearbox oil seal assembly device proposed in this utility model includes: The workbench, including the table surface that supports the gearbox; The positioning sleeve is detachably fitted into the mounting hole of the gearbox; First driving device; The guide plate is driven by the first driving device to move up and down, and has a first position higher than the gearbox and a second position lower than the first position. The guide plate is provided with a guide hole. When the guide plate is lowered to the second position, the guide hole cooperates with the positioning sleeve to make the guide hole coaxial with the mounting hole. A second drive unit; and, The press-fit sleeve is driven by the second drive device to move up and down, and has a third position above the gearbox and a fourth position below the third position. The press-fit sleeve descends to the fourth position and presses the oil seal placed in the guide hole into the mounting hole.

[0007] The oil seal assembly device proposed in this utility model includes a first process and a second process for pressing the oil seal. In the first process, the positioning sleeve fitted onto the gearbox mounting hole cooperates with the guide hole on the guide plate that moves downward, thereby positioning the gearbox on the table and aligning the pressing sleeve with the mounting hole. In the second process, the pressing sleeve presses the oil seal placed in the positioning hole into the mounting hole. In this way, firstly, the gearbox is automatically positioned by the cooperation of the descending guide plate and the positioning sleeve, eliminating the need for manual positioning by the operator, saving manpower, and providing sufficient positioning accuracy. At the same time, since the positioning of the gearbox does not depend on its outer dimensions or shape, gearboxes with mounting holes of the same outer diameter can all have their oil seals assembled on the same oil seal assembly device, greatly improving the adaptability of the oil seal assembly device and significantly reducing equipment costs.

[0008] Preferably, the guide plate in the second position is pressed against the gearbox.

[0009] By adopting the aforementioned technical solution, the guide plate provides downward pressure to the gearbox, thereby enabling the gearbox to be stably positioned between the table and the guide plate. This avoids the gearbox shaking between the first and second processes, and also prevents the mounting hole and the guide hole from becoming out of axial alignment, ensuring that the oil seal can be press-fitted into the mounting hole.

[0010] Preferably, the straight-line distance between the press-fit sleeve in the third position and the guide plate in the second position is greater than the height of the positioning sleeve.

[0011] By adopting the aforementioned technical solution, it is ensured that after the first process is completed, the positioning sleeve can be removed from the space between the press-fitting sleeve and the guide plate.

[0012] Preferably, the positioning sleeve includes an upper end, a lower end, and a tapered portion that transitions between the upper and lower ends. The outer diameter of the upper end is smaller than the outer diameter of the lower end. The lower end is fitted into the mounting hole. The maximum outer diameter of the tapered portion is equal to the outer diameter of the lower end. The guide hole is clearance-fitted with the tapered portion.

[0013] By setting a tapered part on the positioning sleeve, the positioning hole can gradually contact the tapered part during the descent of the positioning plate, thereby realizing the guiding and centering function of the positioning hole on the positioning sleeve, and ultimately making the mounting hole of the gearbox coaxial with the guide hole on the guide plate.

[0014] Preferably, the upper end has a groove in the circumferential direction.

[0015] By adopting the aforementioned technical solution, a groove is set in the upper circumferential direction. The groove helps the operator to grasp the positioning sleeve, reducing or avoiding the probability of the positioning sleeve falling from the operator's hand when the operator picks up and puts down the positioning sleeve.

[0016] Preferably, the device also includes a support base, the guide plate is fixed below the support base, the first driving device drives the support base to move up and down, the support base is vertically provided with a through hole communicating with the guide hole, the press-fit sleeve includes a press connector and a limiting step, the press-fit sleeve moves from a third position to a fourth position, the press connector extends into the through hole and the guide hole to press the oil seal placed in the guide hole into the mounting hole, and the limiting step is supported on the support base around the through hole.

[0017] By adopting the aforementioned technical solution, the limiting step of the press-fitting sleeve can be limited by the support seat, thereby limiting the depth of the press-fitting sleeve pressing the oil seal and preventing the oil seal from being excessively squeezed by the press-fitting sleeve. At the same time, the support seat supports the limiting step of the press-fitting sleeve, preventing the pressure of the press-fitting sleeve descending from acting directly on the positioning plate and causing deformation of the positioning plate.

[0018] Preferably, the thickness of the support base is greater than the thickness of the guide plate.

[0019] By adopting the aforementioned technical solution, the support base has a larger thickness, which gives it stronger compressive strength, thereby reducing or avoiding deformation of the support base under the pressure of the press sleeve, and ensuring the positional accuracy of the positioning plate installed on the support base; the guide plate has a smaller thickness, which can save material usage and reduce weight, thereby reducing the workload of the lifting section of the first drive device.

[0020] Preferably, the positioning sleeve has a first through hole in the axial direction, the press-fit sleeve has a second through hole in the axial direction, and the table surface has a third through hole vertically. The first through hole, the second through hole, and the third through hole are used to avoid the gear shaft of the gearbox.

[0021] By adopting the aforementioned technical solution, interference between the gear shaft of the gearbox and the positioning sleeve, press-fit sleeve, and table surface is avoided, thereby improving the versatility of the oil seal assembly device.

[0022] Preferably, the workbench further includes a base frame supporting the table surface, the base frame having a cavity, the first driving device being disposed below the table surface and housed in the cavity, and the second driving device being disposed above the table surface.

[0023] By adopting the aforementioned technical solution, the first driving device and the second driving device move below and above the platform, respectively, thereby avoiding interference between the two during their movement and reducing the design difficulty of the oil sealing assembly device.

[0024] Preferably, the first driving device includes a guide rod, a positioning sleeve, a first cylinder and a connecting plate. The connecting plate connects the first cylinder and the guide rod. The other end of the guide rod is connected to the guide plate. The positioning sleeve is fixed to the table surface and sleeved with the guide rod, so that the first cylinder drives the guide plate to move up and down. The second driving device includes a support frame and a second cylinder fixed to the support frame. The press sleeve is fixedly connected to the second cylinder, so that the second cylinder drives the press sleeve to move up and down.

[0025] By adopting the aforementioned technical solution, the cylinder provides power, enabling the first and second drive devices to have faster operating speeds and sufficient motion power, reducing the time required for oil seal installation and improving operating efficiency. At the same time, the cooperation of the guide rod and guide sleeve makes the positioning plate more accurate in motion. Furthermore, the support frame provides stable support for the second cylinder, allowing the second cylinder to provide sufficient pressing force to the pressing sleeve with the support frame as the force point.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0027] Figure 1 This is an exploded view of the gearbox in an embodiment of the present invention; Figure 2 This is a schematic diagram of the oil sealing and assembly device in an embodiment of the present invention. Figure 3 This is a front view of the oil sealing assembly device in an embodiment of this utility model; Figure 4 This is a front view of the oil sealing assembly device in the embodiment of the present invention, showing the guide plate in the first position, the press-fit sleeve in the third position, and the positioning sleeve fitted into the mounting hole. Figure 5 This is a front view of the oil seal fitting device in the embodiment of the present invention, with the press-fit sleeve in the third position, the guide plate lowered to the second position, and the positioning sleeve engaging with the positioning gearbox. Figure 6 for Figure 5 A front view showing the removal of the locating sleeve and the insertion of the oil seal into the mounting hole of the gearbox; Figure 7 This is a front view of the oil seal assembly device in the embodiment of the present invention, showing the guide plate in the second position and the pressing sleeve descending to the fourth position to press the oil seal into the mounting hole of the gearbox; Figure 8 This is a schematic diagram of the positioning sleeve in an embodiment of the present utility model; Figure 9 This is a schematic diagram of the press-fit sleeve in an embodiment of the present invention. Figure 10This is a schematic diagram of the guide plate and support base in an embodiment of this utility model; Figure 11 This is another schematic diagram of the guide plate and support base in an embodiment of this utility model; Figure 12 This is a schematic diagram of the workbench in an embodiment of the present invention.

[0028] Figure label: 10. Gearbox; 11. Mounting hole; 12. Gear shaft; 13. Oil seal; 100. Workbench; 110. Tabletop; 111. Third through hole; 120. Base frame; 200, positioning sleeve; 201, first through hole; 210, upper end; 211, groove; 220, lower end; 230, tapered part; 300, guide plate; 310, guide hole; 400, support base; 410, limiting hole; 500, press-fit sleeve; 501, second through hole; 510, press-fit head; 520, limiting step; 600, First driving device; 610, Guide rod; 620, Guide sleeve; 630, First cylinder; 640, Connecting plate; 700, Second drive unit; 710, Support frame; 720, Second cylinder. Detailed Implementation

[0029] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" or "several" means two or more, unless otherwise expressly defined.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] like Figures 1 to 12 As shown in the embodiment of this utility model, the oil seal assembly device for a gearbox is used to install the oil seal 13 into the mounting hole 11 of the gearbox 10. The oil seal assembly device includes a worktable 100, a positioning sleeve 200, a guide plate 300, a pressing sleeve 500, a first driving device 600, and a second driving device 700. The positioning sleeve 200 is detachably fitted onto the mounting hole 11 where the oil seal 13 is not installed.

[0034] The first driving device 600 drives the guide plate 300 to move up and down, so that the guide plate 300 has at least a first position higher than the gearbox 10 and a second position lower than the first position. The guide plate 300 is provided with a guide hole 310. When the guide plate 300 is lowered to the second position, the guide hole 310 cooperates with the positioning sleeve 200 to make the guide hole 310 coaxial with the mounting hole 11.

[0035] The second drive device 700 drives the press sleeve 500 to move up and down, so that the press sleeve 500 has a third position higher than the gearbox 10 and a fourth position lower than the third position. The press sleeve 500 descends to the fourth position and presses the oil seal 13 placed in the guide hole 310 into the mounting hole 11.

[0036] like Figure 4 As shown, the guide plate 300 is in the first position, the press sleeve 500 is in the third position, the gearbox 10 is placed on the table 110, and the positioning sleeve 200 is fitted into the mounting hole 11 of the gearbox 10.

[0037] like Figure 5As shown, the guide plate 300 is in the second position and the press sleeve 500 is in the third position. The downward movement of the guide plate 300 causes the guide hole 310 and the positioning sleeve 200 to be aligned and fitted together, thereby positioning the gearbox 10 on the table 110.

[0038] like Figure 6 As shown, the guide plate 300 is in the second position, the press sleeve 500 is in the third position, the positioning sleeve 200 is removed, and the oil seal 13 is inserted into the guide hole 310 of the guide plate 300.

[0039] like Figure 7 As shown, the guide plate 300 is in the second position, and the press sleeve 500 is in the fourth position. The downward movement of the press sleeve 500 presses the oil seal 13 into the mounting hole 11 of the gearbox 10.

[0040] The installation of the oil seal 13 using the oil seal assembly device of this utility model includes two steps. In the first step, the positioning sleeve 200 is fitted onto the mounting hole 11 where the oil seal 13 is not installed. The descent of the guide plate 300 causes the guide hole 310 on the guide plate 300 to guide the positioning sleeve 200 to move radially in the guide hole 310, thereby driving the gearbox 10 to move. This makes the mounting hole 11 of the gearbox 10 coaxial with the guide hole 310 on the guide plate 300, and the gearbox 10 is positioned on the platform 110 through the cooperation of the guide hole 310 and the positioning sleeve 200. In the second step, the positioning sleeve 200 is removed, and the oil seal 13 is placed into the guide hole 310. The descent of the pressing sleeve 500 presses the oil seal 13 into the mounting hole 11. The pressing sleeve 500 can provide circumferential pressure to the oil seal 13, thereby ensuring the consistency of the oil seal 13 pressing process.

[0041] The oil seal assembly device proposed in this utility model includes a first process and a second process for pressing the oil seal 13. In the first process, the positioning sleeve 200 fitted onto the mounting hole 11 of the gearbox 10 cooperates with the guide hole 310 on the guide plate 300 that moves downward, thereby positioning the gearbox 10 on the table 110 and aligning the pressing sleeve 500 with the mounting hole 11. In the second process, the pressing sleeve 500 presses the oil seal 13 placed in the positioning hole into the mounting hole 11. In this way, firstly, the gearbox 10 is automatically positioned by the cooperation of the descending guide plate 300 and the positioning sleeve 200, eliminating the need for manual positioning by operators, saving manpower, and providing sufficient positioning accuracy. At the same time, since the positioning of the gearbox 10 does not depend on its outer dimensions or shape, gearboxes 10 with the same outer diameter of the mounting hole 11 can all have the oil seal 13 assembled on the same oil seal assembly device, greatly improving the adaptability of the oil seal assembly device and significantly reducing equipment costs.

[0042] In one embodiment, such as Figure 5As shown, based on the aforementioned embodiment, the guide plate 300 in the second position is pressed onto the gearbox 10.

[0043] This allows the guide plate 300 to provide downward pressure to the gearbox 10, thereby enabling the gearbox 10 to be stably positioned between the table 110 and the guide plate 300. This prevents the gearbox 10 from shaking between the first and second processes, and also prevents the mounting hole 11 from becoming disengaged from the guide hole 310, ensuring that the oil seal 13 can be press-fitted into the mounting hole 11.

[0044] In one embodiment, such as Figure 5 , Figure 6 As shown, based on all the aforementioned embodiments, the straight-line distance between the press-fit sleeve 500 in the third position and the guide plate 300 in the second position is greater than the height of the positioning sleeve 200.

[0045] This ensures that after the first process is completed, the positioning sleeve 200 can be removed from the space between the press-fit sleeve 500 and the guide plate 300.

[0046] In one embodiment, such as Figure 8 As shown, based on the aforementioned embodiments, the positioning sleeve 200 includes an upper end 210, a lower end 220, and a tapered portion 230 that transitions between the upper end 210 and the lower end 220. The outer diameter of the upper end 210 is smaller than the outer diameter of the lower end 220. The lower end 220 is fitted into the mounting hole 11. The maximum outer diameter of the tapered portion 230 is equal to the outer diameter of the lower end 220.

[0047] The downward movement of the guide hole 310 cooperates with the tapered part 230 to make the mounting hole 11 of the gearbox 10 coaxial with the guide hole 310 on the guide plate 300.

[0048] Theoretically, the inner diameter of the guide hole 310 should match the outer diameter of the lower end 220 to achieve the best guiding effect and ensure that the mounting hole 11 and the guide hole 310 on the guide plate 300 are coaxial. However, in actual use, if the inner diameter of the guide hole 310 matches the outer diameter of the lower end 220, the guide plate 300 and the positioning sleeve 200 will jam. Therefore, the guide hole 310 and the tapered part 230 are clearance-fitted, and the maximum outer diameter of the tapered part 230 is smaller than the inner diameter of the guide hole 310, with a small difference, so that the guide hole 310 and the tapered part 230 fit together, making the mounting hole 11 of the gearbox 10 and the guide hole 310 on the guide plate 300 basically coaxial. Correspondingly, the press-fit sleeve 500 and the guide hole 310 are also clearance-fitted.

[0049] By providing a tapered portion 230 on the positioning sleeve 200, the positioning hole can gradually contact the tapered portion 230 during the descent of the positioning plate, thereby realizing the guiding and centering function of the positioning hole on the positioning sleeve 200, and ultimately making the mounting hole 11 of the gearbox 10 coaxial with the guide hole 310 on the guide plate 300.

[0050] In this preferred embodiment, the upper end 210 of the positioning sleeve 200 is provided with a groove 211 in the circumferential direction.

[0051] In this embodiment, the upper end 210 is provided with an annular groove 211 that connects end to end in the circumferential direction.

[0052] In some other embodiments, the upper end 210 may also be provided with a plurality of grooves 211 at intervals in the circumferential direction.

[0053] Since the positioning sleeve 200 includes an upper end 210, a lower end 220 and a tapered portion 230 that connects the upper end 210 and the lower end 220, the positioning sleeve 200 has a generally tapered structure. The gripping force of the operator when grasping the positioning sleeve 200 will generate a downward component force, making the positioning sleeve 200 difficult to grasp.

[0054] By providing a groove 211 around the upper end 210, the groove 211 helps the operator to grasp the positioning sleeve 200, reducing or avoiding the probability that the positioning sleeve 200 will fall from the operator's hand when the operator picks up or puts down the positioning sleeve 200.

[0055] In one embodiment, such as Figures 1 to 11 As shown, based on all the aforementioned embodiments, the oil seal assembly device further includes a support base 400, a guide plate 300 fixed below the support base 400, a first driving device 600 driving the support base 400 to move up and down, a limiting hole 410 vertically provided on the support base 400 communicating with the guide hole 310, a press-fit sleeve 500 including a press connector and a limiting step 520, the press-fit sleeve 500 moves from the third position to the fourth position, the press connector extends into the limiting hole 410 and the guide hole 310 to press the oil seal 13 placed in the guide hole 310 into the mounting hole 11, and the limiting step 520 is supported on the support base 400 around the limiting hole 410.

[0056] In this embodiment, the diameter of the limiting hole 410 is smaller than the outer diameter of the limiting step 520, thereby limiting the limiting step 520 from passing through the limiting hole 410, and the limiting step 520 is supported on the support base 400 around the limiting hole 410.

[0057] By setting the support base 400, the limiting step 520 of the press-fitting sleeve 500 can be limited by the support base 400, thereby limiting the depth of the press-fitting sleeve 500 pressing the oil seal 13 and preventing the oil seal 13 from being excessively squeezed by the press-fitting sleeve 500. At the same time, the support base 400 supports the limiting step 520 of the press-fitting sleeve 500, preventing the pressure of the press-fitting sleeve 500 descending from directly acting on the positioning plate and causing the positioning plate to deform.

[0058] In this preferred embodiment, the thickness of the support base 400 is greater than the thickness of the guide plate 300.

[0059] The support base 400 has a large thickness, which gives it strong compressive strength, thereby reducing or avoiding deformation of the support base 400 under the pressure of the press sleeve 500, and ensuring the positional accuracy of the positioning plate installed on the support base 400; the guide plate 300 has a small thickness, which can save material usage and reduce weight, thereby reducing the workload of the rising working section of the first drive device 600.

[0060] In one embodiment, such as Figure 8 , Figure 9 , Figure 12 As shown, based on all the aforementioned embodiments, the positioning sleeve 200 is provided with a first through hole 201 in the axial direction, the press-fit sleeve 500 is provided with a second through hole 501 in the axial direction, and the platform 110 is provided with a third through hole 111 vertically. The first through hole 201, the second through hole 501 and the third through hole 111 are used to avoid the gear shaft 12 of the gearbox 10.

[0061] This design avoids interference between the gear shaft 12 of the gearbox 10 and the positioning sleeve 200, the press-fit sleeve 500, and the table 110, thus improving the versatility of the oil seal assembly device.

[0062] In one embodiment, such as Figure 2 , Figure 12 As shown, based on all the aforementioned embodiments, the workbench 100 also includes a bottom frame 120 supporting the table surface 110. The bottom frame 120 has a cavity. The first driving device 600 is disposed below the table surface 110 and housed in the cavity, and the second driving device 700 is disposed above the table surface 110.

[0063] This configuration allows the first drive device 600 and the second drive device 700 to move below and above the platform 110, respectively, thereby avoiding interference between the two during their movement and reducing the design difficulty of the oil seal assembly device.

[0064] In this preferred embodiment, the first driving device 600 includes a guide rod 610, a guide sleeve 620, a first cylinder 630, and a connecting plate 640. The connecting plate 640 connects the first cylinder 630 and the guide rod 610. The other end of the guide rod 610 is connected to the guide plate 300. The guide sleeve 620 is fixed to the table 110 and sleeved with the guide rod 610, so that the first cylinder 630 drives the guide plate 300 to move up and down.

[0065] The guide sleeve 620 is used to guide the movement direction of the guide rod 610.

[0066] In this embodiment, the guide plate 300 is connected to the support base 400, and the support base 400 is fixed to one end of the guide rod 610.

[0067] In this embodiment, there are two guide rods 610 and two guide sleeves 620.

[0068] In some other embodiments, the guide rod 610 and guide sleeve 620 may also be provided in other numbers, such as three or more, to provide better guiding accuracy.

[0069] This configuration utilizes cylinders to provide power, enabling the first drive unit 600 to operate at a faster speed and with sufficient motion power, reducing the time required for oil seal 13 installation and improving operating efficiency. At the same time, the cooperation between guide rod 610 and guide sleeve 620 results in higher motion accuracy of the positioning plate.

[0070] In this preferred embodiment, the second driving device 700 includes a support frame 710 and a second cylinder 720 fixed to the support frame 710. The press sleeve 500 is fixedly connected to the second cylinder 720, so that the second cylinder 720 drives the press sleeve 500 to move up and down.

[0071] This configuration utilizes the cylinder to provide power, enabling the second drive unit 700 to have a faster operating speed and sufficient motion power, reducing the time required for oil seal 13 installation and improving operating efficiency. At the same time, the support frame 710 provides stable support for the second cylinder 720, allowing the second cylinder 720 to provide sufficient pressing force to the press sleeve 500 with the support frame 710 as the force point.

[0072] The first cylinder 630 and the second cylinder 720 are connected to an external air source via air pipes to provide the power for movement. Valves are connected to the air pipes connecting the first cylinder 630 and the second cylinder 720, and the extension or retraction of the cylinders is achieved by switching different valves.

[0073] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. An oil seal assembly device for a gearbox, characterized in that, include: The workbench, including the table surface that supports the gearbox; The positioning sleeve is detachably fitted into the mounting hole of the gearbox; First driving device; The guide plate is driven by the first driving device to move up and down, and has a first position higher than the gearbox and a second position lower than the first position. The guide plate is provided with a guide hole. When the guide plate is lowered to the second position, the guide hole cooperates with the positioning sleeve to make the guide hole coaxial with the mounting hole. A second drive unit; and, The press-fit sleeve is driven by the second drive device to move up and down, and has a third position above the gearbox and a fourth position below the third position. The press-fit sleeve descends to the fourth position and presses the oil seal placed in the guide hole into the mounting hole.

2. The oil sealing and dispensing device as described in claim 1, characterized in that, The guide plate in the second position is pressed against the gearbox.

3. The oil sealing and dispensing device as described in claim 1, characterized in that, The straight-line distance between the press-fit sleeve in the third position and the guide plate in the second position is greater than the height of the positioning sleeve.

4. The oil sealing and dispensing device as described in claim 1, characterized in that, The positioning sleeve includes an upper end, a lower end, and a tapered portion that transitions between the upper and lower ends. The outer diameter of the upper end is smaller than the outer diameter of the lower end. The lower end is fitted into the mounting hole. The maximum outer diameter of the tapered portion is equal to the outer diameter of the lower end. The guide hole is clearance-fitted with the tapered portion.

5. The oil sealing and dispensing device as described in claim 1, characterized in that, The upper end has a groove on the circumference.

6. The oil sealing and dispensing device as described in claim 1, characterized in that, It also includes a support base, the guide plate is fixed below the support base, the first driving device drives the support base to move up and down, the support base is vertically provided with a through hole communicating with the guide hole, the press-fit sleeve includes a press connector and a limiting step, the press-fit sleeve moves from the third position to the fourth position, the press connector extends into the through hole and the guide hole to press the oil seal placed in the guide hole into the mounting hole, and the limiting step is supported on the support base around the through hole.

7. The oil sealing and dispensing device as described in claim 6, characterized in that, The thickness of the support base is greater than the thickness of the guide plate.

8. The oil sealing and dispensing device as described in claim 1, characterized in that, The positioning sleeve has a first through hole in its axial direction, the press-fit sleeve has a second through hole in its axial direction, and the table surface has a third through hole vertically. The first through hole, the second through hole, and the third through hole are used to avoid the gear shaft of the gearbox.

9. The oil sealing and dispensing device as described in claim 1, characterized in that, The workbench also includes a base frame that supports the table surface. The base frame has a cavity. The first driving device is disposed below the table surface and housed in the cavity. The second driving device is disposed above the table surface.

10. The oil sealing and dispensing apparatus as described in claim 9, characterized in that, The first driving device includes a guide rod, a guide sleeve, a first cylinder, and a connecting plate. The connecting plate connects the first cylinder and the guide rod. The other end of the guide rod is connected to the guide plate. The guide sleeve is fixed to the platform and sleeved with the guide rod, so that the first cylinder drives the guide plate to move up and down. The second driving device includes a support frame and a second cylinder fixed to the support frame. The press-fit sleeve is fixedly connected to the second cylinder, so that the second cylinder drives the press-fit sleeve to move up and down.

Images