Equipment for coating lubricating grease

Abstract

The utility model provides lubricating grease coating equipment which is used for solving the problems that in the prior art, products of multiple specifications cannot be adapted, and grease residues exist. The equipment for coating the lubricating grease comprises a workbench, an injection frame is arranged on the workbench, the injection frame is connected with a grease pipe, the bottom of the grease pipe is rotationally connected with an oil injection bin through a driving bin, the bottom of the oil injection bin is an oil injection plate, a plurality of oil injection ports are evenly distributed in the oil injection plate in a penetrating mode along a vortex line, a rotating rod is arranged on the oil injection plate in a penetrating mode, and the rotating rod is connected with a lower scraping plate. A driving motor is arranged in the driving bin, the rotating rod is sleeved with a connecting pipe, a fan-shaped baffle is fixed to the bottom of the connecting pipe, the baffle is matched with the lower scraping plate to cover the oil injection plate, and the driving motor can drive the rotating rod and the connecting pipe to rotate. According to the oil injection device, all-directional and multi-angle oil injection operation can be achieved, and the oil injection requirements of products of different specifications at different positions are met.

Description

Technical Field

[0001] The utility model relates to the technical field of oil injection mechanisms for torque sensors, in particular to a device for coating lubricating grease. Background Art

[0002] Before encapsulation, sufficient grease needs to be injected into the housing of the torque sensor and then encapsulated. By injecting grease, the friction of the internal parts of the torque during rotation can be reduced and the heat of rotation can be transferred, thereby achieving the effect of extending the service life of the torque sensor. In the prior art, an extrusion head is usually used to inject oil at the oil injection points of the product. Multiple extrusion holes corresponding to the oil injection points need to be provided at the bottom of the extrusion head. However, during small-batch production, the product needs to be frequently changed. Once the product is changed, a different extrusion head needs to be replaced, and the extrusion head also needs to be cleaned, which greatly affects the production efficiency and causes waste of grease. In addition, after the single oil injection process is completed, some grease will also leak from the extrusion holes, causing environmental pollution. Summary of the Utility Model

[0003] The utility model provides a device for coating lubricating grease, which solves the problems in the prior art that it cannot adapt to products of multiple specifications and grease leakage.

[0004] The technical solution of the utility model is realized as follows:

[0005] A device for coating lubricating grease includes a workbench, an injection rack is arranged on the workbench, the injection rack is connected with a grease pipe, the bottom of the grease pipe is rotationally connected with an oil injection chamber through a drive chamber, the grease sequentially passes through the grease pipe, the drive chamber and the oil injection chamber, the bottom of the oil injection chamber is an oil injection plate, a plurality of oil injection ports are uniformly arranged on the oil injection plate along a spiral line, a rotating rod is arranged on the oil injection plate, one end of the rotating rod outside the oil injection plate is fixedly connected with a sector-shaped lower scraper, the lower scraper can cover one and several adjacent oil injection ports, a drive motor is arranged in the drive chamber, a connecting pipe is sleeved on the rotating rod, a sector-shaped baffle is fixed at the bottom of the connecting pipe, the baffle abuts against the top surface of the oil injection plate, the baffle and the lower scraper cooperate to cover the oil injection plate, and the drive motor can drive the rotating rod and the connecting pipe to rotate respectively.

[0006] Furthermore, the drive motor is connected to a connecting rod and a link through a commutation device. The commutation device includes an inner rotating ring fixed at the top of the link, a lower ratchet is arranged inside the inner rotating ring, an outer rotating ring is sleeved outside the inner rotating ring, the outer rotating ring is fixedly connected to the top of the connecting pipe, the top of the outer rotating ring is higher than the inner rotating ring, and an upper ratchet is arranged above the inner rotating ring and inside the outer rotating ring. The tooth direction of the upper ratchet is opposite to that of the lower ratchet. An upper pawl and a lower pawl are hinged to the output shaft through a first torsion spring. The upper pawl cooperates with the upper ratchet, and the lower pawl cooperates with the lower ratchet. By precisely controlling the rotation of the baffle and the lower scraper, the precise opening and closing of the oil injection ports can be ensured, avoiding waste and leakage of grease.

[0007] Furthermore, an oil storage bin is provided on the workbench. The bottom end of the oil storage bin is communicated with the grease pipe through a pipeline. A push plate is slidably sealed in the oil storage bin. The push plate is connected with a telescopic rod. A circulation hole is provided through the push plate. The bottom surface of the push plate is hinged with an oil blocking plate through a second torsion spring. The oil blocking plate can close the circulation hole. An oil filling port is provided at the top of the oil storage bin. The sealing performance of the push plate during the grease pushing process ensures the continuous and stable transportation of the grease, improving the work efficiency. The self-locking function of the oil blocking plate ensures the sealing performance of the oil storage bin in a static state, avoiding the leakage and waste of the grease.

[0008] Furthermore, a plurality of grooves are provided at one end of the lower scraper plate close to the oil injection plate. The radii of the grooves from the rotating rod correspond to the radii of the oil injection ports from the rotating rod one by one. Push plates are slidably arranged in the grooves. The push plates are hemispherical. One end of the spherical surface of the push plate can be placed in the oil injection port. The other end of the push plate is connected with the groove through a spring. The push plates connected by springs in the grooves can push the grease at the oil injection port back into the oil storage bin, reducing the risk of the grease deteriorating, hardening or mixing with impurities due to long-term exposure to the air.

[0009] Furthermore, a female mold for fixing the parts to be oil-injected is provided on the workbench. The female mold corresponds to the oil storage bin. The female mold can firmly fix the parts, preventing the parts from moving or flipping during the oil injection process and protecting the parts from damage.

[0010] Furthermore, an oil liquid collecting groove is provided on one side or both sides of the lower scraper plate. The collecting groove helps to keep the oil injection equipment and its surrounding environment clean, avoiding the grease from contaminating other components or products.

[0011] Furthermore, a robotic arm is arranged on the workbench. The robotic arm can quickly and accurately place the product to be oil-injected on the female mold and quickly remove it after the oil injection is completed, thus significantly improving the continuity and efficiency of the production process.

[0012] Beneficial effects that can be produced by this technical solution.

[0013] By the oil injection ports evenly distributed along the spiral line, the present utility model increases the number and distribution range of the oil injection ports. By driving the rotation of the lower scraper plate and the baffle by a driving motor and combining with the rotatable oil storage bin, this equipment can realize all-round and multi-angle oil injection operations, meet the oil injection requirements of different specifications of products at different positions, and the cooperation between the scraper plate and the baffle covers the oil injection plate, effectively preventing the leakage of grease during the oil injection process and keeping the working environment clean. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0015] Figure 1 Schematic perspective view of the present invention;

[0016] Figure 2 Isometric cross-sectional view at the drive chamber and the oil injection chamber of the present invention;

[0017] Figure 3 Isometric cross-sectional view at the oil injection chamber of the present invention;

[0018] Figure 4 Isometric cross-sectional view at the oil storage chamber of the present invention;

[0019] Figure 5 Bottom-up perspective view at the oil injection chamber of the present invention;

[0020] Figure 6 is Figure 3 Partial enlarged schematic view at position A in

[0021] Figure 7 Isometric cross-sectional view of the present invention.

[0022] Wherein: 1, workbench; 2, injection rack; 3, grease pipe; 4, oil injection chamber; 5, oil injection plate; 6, drive chamber; 7, oil injection port; 8, rotating rod; 9, lower scraper; 10, connecting pipe; 11, baffle; 12, inner rotating ring; 13, lower ratchet; 14, outer rotating ring; 15, oil storage chamber; 16, pushing plate; 17, telescopic rod; 18, circulation hole; 19, oil blocking plate; 20, refueling port; 21, groove; 22, pushing plate; 23, spring; 24, female mold; 25, oil liquid collection tank; 26, robotic arm; 27, upper ratchet. Detailed implementation manners

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0024] As Figures 1-3As shown in the figure, an embodiment of the present utility model provides a device for coating lubricating grease, which includes a workbench 1. An injection rack 2 is provided on the workbench 1. The injection rack 2 is connected to a grease pipe 3. The bottom of the grease pipe 3 is rotatably connected to an oil injection chamber 4 through a drive chamber 6. The grease sequentially passes through the grease pipe 3, the drive chamber 6 and the oil injection chamber 4. The bottom of the oil injection chamber 4 is an oil injection plate 5. A plurality of oil injection ports 7 are evenly arranged along a spiral line and penetrate through the oil injection plate 5. A rotating rod 8 penetrates through the oil injection plate 5. One end of the rotating rod 8 outside the oil injection plate 5 is fixedly connected to a fan-shaped lower scraping plate 9. The lower scraping plate 9 can cover one and several adjacent oil injection ports 7. A drive motor is provided in the drive chamber 6. A connecting pipe 10 is sleeved on the rotating rod 8. A fan-shaped baffle 11 is fixed to the bottom of the connecting pipe 10. The baffle 11 abuts against the top surface of the oil injection plate 5. The baffle 11 and the lower scraping plate 9 cooperate to cover the oil injection plate 5. The drive motor can drive the rotating rod 8 and the connecting pipe 10 to rotate respectively. The oil injection chamber 4 is a hollow cone. A plurality of sliding sleeves are provided on the side wall of the injection rack 2. The axis of the sliding sleeve is perpendicular to the workbench 1. The grease pipe 3 slides along the sliding sleeve through a telescopic device. The bottom surface of the drive chamber 6 realizes the rotational connection between the oil injection chamber 4 and the drive chamber 6 through a plain bearing. The outer side wall of the oil injection chamber 4 can be rotated by a driving device. The center of the spiral line coincides with the center of the circle of the oil injection plate 5. The axes of the rotating rod 8 and the connecting pipe 10 coincide with the center of the circle of the oil injection plate 5. The drive motor is a stepper motor or a servo motor, etc. A channel for the flow of the oil supply liquid is provided in the drive chamber 6. A circuit pipe for electrically connecting the drive motor penetrates through the side wall of the drive chamber 6. The circuit pipe penetrates through the drive chamber 6 and the housing protecting the drive motor and is hermetically connected to it. The number of turns of the spiral line is one turn. The rotational connection between the oil injection chamber 4 and the drive chamber 6 is a prior art, as long as it can ensure that the oil injection chamber 4 rotates relative to the drive chamber 6 and does not fall off, such as through a chute and rail connection, etc.

[0025] During the first use, the grease sequentially passes through the grease pipe 3 and the drive chamber 6 and finally enters the oil filling chamber 4. Since the grease has a certain viscosity, the conical oil filling chamber 4 facilitates the accumulation of grease in the oil filling chamber 4, and the baffle 11 can cover most of the oil filling ports 7. A small number of oil filling ports 7 can also be used to discharge the air in the pipe. When the oil filling chamber 4 is filled with grease, the lower scraper 9 and the baffle 11 cooperate to cover the oil filling plate 5 to prevent grease leakage. When oil filling operation is required, the drive motor drives the lower scraper 9 to rotate through the rotating rod 8, so that the lower scraper 9 coincides with the baffle 11. At this time, the grease can flow out from the oil filling port 7 at the notch of the baffle 11. In order to facilitate oil filling at different positions of products of various specifications, the drive motor drives the lower scraper 9 or the baffle 11 to rotate, and then the lower scraper 9 and the baffle 11 cooperate to make the grease pass through the oil filling ports 7 with different radii on the spiral line, and then the rotatable oil filling chamber 4 drives the oil filling ports 7 to rotate, realizing full-point oil filling within the coverage area of the lower scraper 9. Before the oil filling chamber 4 is filled with grease, a small number of oil filling ports 7 can be used to discharge the air in the pipe, improving the accuracy of the metering system, reducing the waste of grease, and also avoiding the influence of air bubbles on the flow and coating effect of the grease.

[0026] As Figures 2-3 shown, the drive motor is connected to the connecting rod and the link through a commutation device. The commutation device includes an inner rotating ring 12 fixed to the top of the connecting rod. A lower ratchet 13 is provided inside the inner rotating ring 12. An outer rotating ring 14 is sleeved outside the inner rotating ring 12. The outer rotating ring 14 is fixedly connected to the top of the connecting pipe 10. The top of the outer rotating ring 14 is higher than the inner rotating ring 12, and an upper ratchet 27 is provided above the inner rotating ring 12 and inside it. The tooth orientation of the upper ratchet 27 is opposite to that of the lower ratchet 13. An upper ratchet pawl and a lower ratchet pawl are hinged to the output shaft through a first torsion spring. The upper ratchet pawl cooperates with the upper ratchet 27, and the lower ratchet pawl cooperates with the lower ratchet 13. Both the lower ratchet 13 and the upper ratchet 27 are internal ratchets, and the internal ratchet is a prior art. The top of the outer rotating ring 14 can be connected to the drive chamber 6 through a plain bearing, and the axial fixation of the outer rotating ring 14 is realized.

[0027] When it is necessary to control the rotation of the baffle 11, the driving motor drives the connecting pipe 10 to rotate through the cooperation of the upper ratchet pawl and the upper ratchet wheel 27. At the same time, since the orientation of the lower ratchet wheel 13 is opposite to that of the upper ratchet wheel 27, the lower ratchet pawl idles in the lower ratchet wheel 13. By reversing the driving motor, the rotation of the baffle 11 and the lower scraper 9 can be directly controlled without additional control mechanisms or manual operations, improving work efficiency. By using a single driving motor for driving, the use of multiple motors or complex transmission mechanisms is avoided, thereby reducing energy consumption and maintenance costs. The cooperation of the upper ratchet pawl and the upper ratchet wheel 27, and the lower ratchet pawl and the lower ratchet wheel 13 enables the forward and reverse rotation of the motor to be quickly and accurately transmitted to the baffle 11 and the lower scraper 9, ensuring the accuracy and response speed of the action. By adjusting the parameters of the driving motor, the rotation angle and speed of the baffle 11 and the lower scraper 9 can be easily changed to meet the requirements of different products and processes, improving the versatility and adaptability of the equipment.

[0028] Such as Figure 1 , 4As shown, an oil storage bin 15 is provided on the workbench 1. The bottom end of the oil storage bin 15 is communicated with an oil pipe 3 through a pipeline. A pushing plate 16 is slidably sealed in the oil storage bin 15. The pushing plate 16 is connected with a telescopic rod 17. A circulation hole 18 is provided through the pushing plate 16. The bottom surface of the pushing plate 16 is hinged with an oil blocking plate 19 through a second torsion spring. The oil blocking plate 19 can close the circulation hole 18. An oil filling port 20 is provided at the top end of the oil storage bin 15. During the use process, due to the viscosity of the grease itself, it is not easy to flow. The pushing plate 16 is moved through the telescopic rod 17. The pushing plate 16 pushes the grease into the oil pipe 3 through the pipeline. When the grease in the oil storage bin 15 is used up, the pushing plate 16 will be placed at the bottom end of the oil storage bin 15. Grease is injected into the baffle 11 through the oil filling port 20. The grease will accumulate above the pushing plate 16. After the grease injection is completed, the oil filling port 20 is closed. Then, the pushing plate 16 is moved towards the top end of the oil storage bin 15 through the telescopic rod 17. The oil liquid on the top surface of the pushing plate 16 will, under the action of pressure, push open the oil blocking plate 19 and enter the oil storage bin 15 at the bottom of the pushing plate 16, realizing the filling of the grease. When the pushing plate 16 moves to the top end of the oil storage bin 15 and stops, the second torsion spring makes the oil blocking plate 19 rotate and close the circulation hole 18. By compressing and pushing the grease in the oil storage bin 15 through the pushing plate 16, air bubbles in the grease can be reduced, improving the accuracy of the metering system. When the oil injection for a single workpiece is completed, the pushing plate 16 can be quickly moved upwards to form a small amount of negative pressure in the oil injection bin 4, sucking the oil liquid at the oil injection port 7 into the oil injection bin 4, ensuring the full utilization of the grease and reducing waste. By pushing the pushing plate 16 through the telescopic rod 17, the grease in the oil storage bin 15 can be effectively pushed into the oil pipe 3, ensuring that the grease can be continuously supplied to the oil injection system. When the grease in the oil storage bin 15 is used up, only new grease needs to be injected into the oil storage bin 15 through the oil filling port 20 without disassembling or moving the oil storage bin 15, greatly simplifying the grease replenishment process. By closing the circulation hole 18 through the oil blocking plate 19, the contact area between the grease and the air is reduced, helping to reduce the oxidation of the grease.

[0029] As Figure 2 , 3As shown in FIGS. 6, a plurality of grooves 21 are provided at one end of the lower scraper 9 close to the oil injection plate 5. The radius of the grooves 21 from the rotating rod 8 corresponds to the radius of the oil injection ports 7 from the rotating rod 8 one by one. A push plate 22 is slidably disposed in each groove 21. The push plate 22 is a hemisphere. One end of the spherical surface of the push plate 22 can be placed in the oil injection port 7, and the other end of the push plate 22 is connected to the groove 21 through a spring 23. During use, if the residual grease at the oil injection port 7 is not cleaned in time, it may fall off during the product coating process, resulting in product contamination. By pushing the residual grease back into the oil injection chamber 4 through the push plate 22 and then scraping it off by the rotating scraper, this kind of contamination can be avoided, ensuring the cleanliness and quality of the product, and ensuring the full utilization of the grease and reducing waste. By pushing the grease back into the oil injection chamber 4 through the push plate 22, the waste of grease is reduced and the utilization rate of the grease is improved. During the rotation of the lower scraper 9, through the cooperation of the hemispherical push plate 22 and the spring 23, one end of the spherical surface of the push plate 22 can accurately slide into the oil injection port 7, so that the grease can be pushed into the oil injection chamber 4. When the lower scraper 9 rotates, the oil injection port 7 abuts against the side of the spherical surface, and a part of the resistance of the oil injection port 7 is divided into a downward pressure on the push plate 22, causing the push plate 22 to compress the spring 23, and finally the push plate 22 is placed in the groove 21, achieving the effect of facilitating the push plate 22 to slide out of the oil injection hole.

[0030] As Figure 1 , 7 shown in FIGS., a female mold 24 for fixing the parts to be oiled is provided on the workbench 1, and the female mold 24 corresponds to the oil injection chamber 4. The female mold 24 is a prior art and is matched with the parts to be oiled, so that the oil injection points of the parts to be oiled are close to the oil injection chamber 4. By using the female mold 24 for fixing the parts to be oiled, the manual positioning time is reduced, thereby improving the production efficiency, the accuracy and consistency of oil injection, and reducing the waste of resources caused by the movement or dropping of the parts.

[0031] As Figure 5 shown in FIGS., an oil liquid collecting groove 25 is provided on one side or both sides of the lower scraper 9. The collecting groove includes a cross plate fixedly connected to the lower scraper 9. A longitudinal plate is fixed on the side of the cross plate away from the lower scraper 9. There is a gap between the top end of the longitudinal plate and the oil injection plate 5. The cross plate, the longitudinal plate and the side wall of the lower scraper 9 enclose the collecting groove. During the rotation of the lower scraper 9, the grease abuts against the side wall of the lower scraper 9 and continuously accumulates, and finally falls into the collecting groove. Through the oil liquid collecting groove 25 provided on one side or both sides of the lower scraper 9, the grease placed outside the oil injection port 7 is effectively collected and recycled, reducing the waste of grease. The collecting groove can prevent the grease from dripping onto the workbench 1 or the ground, keeping the working environment clean and reducing the need for cleaning work.

[0032] As Figure 1As shown, a robotic arm 26 is provided on the workbench 1. The robotic arm 26 is a prior art. The product to be oiled is placed on the female mold 24 by the robotic arm 26, and the oiled product is removed from the female mold 24. The robotic arm 26 can automatically complete the oiling process of the parts, reducing the time and labor intensity of manual operation, lowering the labor cost and potential human errors, and significantly improving the production efficiency. Moreover, the robotic arm 26 can operate within a predetermined path and range, reducing the possibility of operators encountering potential dangers.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for applying lubricating grease, comprising a workbench (1), characterized in that: An injection stand (2) is provided on the workbench (1), the injection stand (2) is connected to a grease pipe (3), the bottom of the grease pipe (3) is rotatably connected to an oil filling bin (4) via a driving bin (6), grease passes through the grease pipe (3), the driving bin (6) and the oil filling bin (4) in sequence, the bottom of the oil filling bin (4) is an oil filling plate (5), a plurality of oil filling ports (7) are evenly distributed along a spiral line on the oil filling plate (5), a rotating rod (8) is provided on the oil filling plate (5), and the rotating rod (8) is placed outside the oil filling plate (5). A fan-shaped lower scraper (9) is fixedly connected to the end, and the lower scraper (9) can cover one and a plurality of adjacent oil filling ports (7). A driving motor is arranged in the driving chamber (6). A connecting pipe (10) is sleeved on the rotating rod (8). A fan-shaped baffle (11) is fixed to the bottom of the connecting pipe (10). The baffle (11) abuts against the top surface of the oil filling plate (5). The baffle (11) cooperates with the lower scraper (9) to cover the oil filling plate (5). The driving motor can respectively drive the rotating rod (8) and the connecting pipe (10) to rotate.

2. The device for applying lubricating grease according to claim 1, characterized in that: The driving motor is connected to the connecting rod and the connecting rod through a reversing device, and the reversing device comprises an inner rotating ring (12) fixed at the top of the connecting rod, a lower ratchet (13) is arranged on the inner side of the inner rotating ring (12), an outer rotating ring (14) is sleeved on the outer side of the inner rotating ring (12), the outer rotating ring (14) is fixedly connected to the top of the connecting tube (10), the top of the outer rotating ring (14) is higher than the inner rotating ring (12), and an upper ratchet (27) is arranged on the inner side higher than the inner rotating ring (12), the ratchet teeth of the upper ratchet (27) are in the opposite direction to the ratchet teeth of the lower ratchet (13), an upper ratchet pawl and a lower ratchet pawl are hinged on the output shaft through a first torsion spring, the upper ratchet pawl cooperates with the upper ratchet (27), and the lower ratchet pawl cooperates with the lower ratchet (13).

3. The device for applying lubricating grease according to claim 1, characterized in that: The workbench (1) is provided with an oil storage bin (15), the bottom end of the oil storage bin (15) is connected to the grease pipe (3) through a pipeline, a push plate (16) is slidably sealed in the oil storage bin (15), the push plate (16) is connected to a telescopic rod (17), a flow hole (18) is penetrated through the push plate (16), the bottom surface of the push plate (16) is hinged with an oil blocking plate (19) through a second torsion spring, the oil blocking plate (19) can close the flow hole (18), and a refueling port (20) is provided at the top end of the oil storage bin (15).

4. The device for applying lubricating grease according to claim 1, characterized in that: A plurality of grooves (21) are provided at one end of the lower scraper (9) close to the oil filling plate (5), the radius of the grooves (21) from the rotating rod (8) corresponds to the radius of the oil filling port (7) from the rotating rod (8), and a push plate (22) is slidably arranged in each of the grooves (21). The push plate (22) is a hemispherical body, one end of the spherical surface of the push plate (22) can be placed in the oil filling port (7), and the other end of the push plate (22) is connected to the groove (21) via a spring (23).

5. The device for applying lubricating grease according to claim 1, characterized in that: The workbench (1) is provided with a concave die (24) capable of fixing the parts to be injected with oil, and the concave die (24) corresponds to the oil injection bin (4).

6. The device for applying lubricating grease according to claim 1, characterized in that: One side or both sides of the lower scraper (9) are provided with an oil collecting groove (25).

7. The device for applying lubricating grease according to claim 1 or 5, characterized in that: A mechanical arm (26) is arranged on the workbench (1).

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