Lubricating grease filling device for bearing production

Abstract

The invention relates to the technical field of bearing production, in particular to a lubricating grease filling device for bearing production, which comprises a base, a turntable, a support arm and an injection component, the turntable is rotatably connected with the base, a plurality of bearings and positioning components are uniformly distributed on the turntable, the injection component is fixedly connected with the support arm, and the support arm is connected with the base. The injection assembly comprises an air cylinder, an injection barrel, a piston, a filling disc and a hose, the output end of the air cylinder is connected with the piston, the piston is embedded into the injection barrel and matched with the injection barrel, the filling disc is rotationally connected with the lower end of the injection barrel, and a plurality of filling holes are evenly formed in the lower end of the filling disc and communicate with an inner cavity of the injection barrel. The piston and the filling disc drive the filling disc to rotate when the piston moves in the inner cavity of the injection barrel through a connecting piece, one end of the hose is communicated with the side wall of the injection barrel, and the other end of the hose is communicated with a storage barrel used for containing lubricating grease. The amount of lubricating grease injected into each bearing can be the same, and it is guaranteed that the lubricating grease is evenly injected into the bearings.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing production, and in particular to a grease filling device for bearing production. Background Art

[0002] In mechanical equipment, the reliable operation of bearings directly depends on the effective filling of grease. Traditional manual filling methods are inefficient and make it difficult to ensure that grease is evenly distributed throughout the bearing raceway gap, which can easily lead to localized lubrication deficiency or contamination. Although existing patented technologies have proposed a variety of semi-automatic or automatic filling devices, insufficient filling uniformity remains a core bottleneck. To address this, we propose a grease filling device for bearing production. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a grease filling device for bearing production.

[0004] The present invention adopts the following technical solution: a grease filling device for bearing production, comprising a base, a turntable, a support arm and an injection assembly, the turntable is sleeved on the base and rotatably connected to the base, a plurality of bearings and a positioning assembly for limiting the rotation of the inner ring of the bearing are evenly distributed on the turntable, the injection assembly is used to inject grease into the bearing from top to bottom, the injection assembly is fixedly connected to the support arm, the support arm is connected to the base, the injection assembly comprises a cylinder, an injection barrel, a piston, a filling disc and a hose, the inner cavity of the injection barrel is filled with grease, the gas The output end of the cylinder is connected to the piston, the cylinder is located above the injection cylinder, the piston is embedded in the injection cylinder and adapted therewith, the filling disk is rotatably connected to the lower end of the injection cylinder, and a plurality of filling holes are evenly provided at the lower end of the filling disk, the filling holes are communicated with the inner cavity of the injection cylinder, the piston and the filling disk are connected by a connecting piece, and the connecting piece is used to drive the filling disk to rotate when the piston moves in the inner cavity of the injection cylinder, one end of the hose is communicated with the lower end side wall of the injection cylinder, and the other end of the hose is communicated with a storage barrel for containing grease.

[0005] A grease filling device for bearing production according to one embodiment of the present invention has a turntable provided with multiple bearings. After the injection assembly has filled a single bearing with grease, the turntable is driven to rotate by one bearing to begin filling the next bearing, thereby ensuring continuous operation and high filling efficiency. During filling, a pneumatic cylinder drives a piston downward along the inner cavity of an injection barrel, thereby squeezing the grease in the injection barrel downward onto the filling disc. The grease is then filled into multiple bearings through the filling holes on the filling disc. Simultaneously, due to the action of a connector, the filling disc can rotate as the piston moves downward, thereby ensuring uniform grease filling of the bearings. After filling is completed, the pneumatic cylinder drives the piston back to its original position, generating negative pressure in the injection barrel. Grease in the storage barrel is automatically drawn into the injection barrel through a hose, completing grease replenishment. The replenished grease is substantially equivalent to the consumed amount, i.e., each bearing receives the same amount of grease, thereby improving filling uniformity. Furthermore, grease replenishment utilizes a purely mechanical principle, reducing the use of electrical equipment and ensuring the continuity and stability of grease filling.

[0006] Furthermore, the connecting part includes a screw and a nut, the piston is a hollow structure, the nut is fixedly connected to the inner cavity of the piston, the screw is threadedly connected to the nut, the output shaft of the cylinder is a hollow structure, and the diameter of the inner cavity of the output shaft of the cylinder is larger than the diameter of the screw, and the lower end of the screw is fixedly connected to the filling plate.

[0007] Furthermore, the support arm includes a support upright, a first cross bar and a second cross bar, the support upright is fixedly connected to the upper end surface of the base, the first cross bar and the second cross bar are fixedly connected to the side wall of the support upright, and the first cross bar is located directly above the second cross bar, the lower end of the cylinder passes through the end of the first cross bar away from the support upright and is fixedly connected to the first cross bar, the injection tube passes through the end of the second cross bar away from the support upright and is movably connected to the second cross bar, limiting rings are provided at both ends of the injection tube, and a return spring is provided on the outer wall of the injection tube, the lower end of the return spring abuts against the upper end surface of the second cross bar, the upper end of the return spring abuts against the lower end surface of the limit ring, and the aperture of the inner hole of the limit ring is smaller than the outer diameter of the piston.

[0008] Furthermore, the filling disk includes a disk body, a one-way valve and a retaining ring. The disk body is evenly provided with a plurality of filling channels radiating outward from the center of the disk body. The filling channels are connected to the filling holes. The filling holes correspond to the balls of the bearings to be filled with grease. The one-way valve is located in the inner center of the disk body and is connected to all the filling channels. The retaining ring is located at the upper end of the disk body. The retaining ring is connected to the one-way valve. The retaining ring consists of two upper and lower circular rings, and the outer diameter of the upper circular ring is larger than the outer diameter of the lower circular ring. The lower end of the injection cylinder is provided with a retaining groove adapted to the retaining ring. The screw is fixedly connected to the inner wall of the inner hole of the retaining ring, and the retaining ring is a structure that is through-through from top to bottom.

[0009] Furthermore, the base includes a base and a boss, both of which are cylindrical structures, and the diameter of the boss is smaller than the diameter of the base, the turntable includes a top ring and a bottom ring, the inner hole diameter of the top ring is larger than the outer diameter of the boss and smaller than the outer diameter of the base, the top ring abuts against the upper end surface of the base, the bottom ring is sleeved on the side wall of the base, the inner hole diameter of the bottom ring is adapted to the outer diameter of the base, the side wall of the base is provided with a first accommodating groove, the first accommodating groove is provided with a driving motor arranged upward, the side wall of the boss is provided with a second accommodating groove, the second accommodating groove is provided with a driving gear connected to the driving motor, and a driven gear is provided on the inner wall of the inner hole of the top ring, and the driving gear is meshed with the driven gear.

[0010] Furthermore, the positioning assembly includes a positioning column, a limiting rod, a limiting spring and a limiting block, the positioning column is fixedly connected to the turntable, the positioning column passes through the bearing located on the turntable, and the positioning column is adapted to the inner ring of the bearing, the positioning column is provided with a limiting hole passing through the center thereof, the upper end of the limiting rod is embedded in the center of the positioning column and extends into the limiting hole, the lower end of the limiting rod passes through the turntable, the lower end of the limiting rod is provided with a retaining ring, the limiting spring is sleeved on the lower end of the limiting rod, and the limiting The upper end of the positioning spring abuts against the lower end surface of the turntable, and the lower end of the limiting spring abuts against the upper end surface of the retaining ring. The limiting rod is movably connected to the turntable and the limiting column. The limiting block is provided with two blocks, which are respectively located at the two ends of the limiting hole. The limiting block is provided with an inclined sliding groove, and the upper end of the limiting rod is provided with a push rod embedded in the sliding groove. The push rod is slidably connected to the sliding groove, and the push rod is used to drive the limiting block close to the middle of the limiting hole or away from the middle of the limiting hole when the limiting rod moves up and down.

[0011] Furthermore, a slide plate is provided on the side wall of the turntable, the upper end face of the slide plate is an arched structure, and a slide column is provided on the side wall of the retaining ring, the height of the slide column is lower than the upper end face of the slide plate, and the slide column is used to abut against the upper end face of the slide plate and slide along the upper end face of the slide plate when the turntable rotates.

[0012] Furthermore, a support ring and a spin gear are provided on the positioning column, the spin gear is located at the lower end of the support ring and is fixedly connected to the support ring, the support ring and the spin gear are rotatably connected to the positioning column, the bearing is located on the support ring, and the upper end surface of the support ring is evenly provided with a plurality of striped grooves, the spin gear abuts against the upper end surface of the turntable, and a spin rack meshing with the spin gear is provided above the turntable, and the spin rack is fixedly connected to the upper end surface of the base through a connecting plate.

[0013] Furthermore, it also includes a shell, and the shell is provided with a take-in and put-out port, and the take-in and put-out port is located between the injection assembly and the spin rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic structural diagram of a grease filling device for bearing production according to the present invention; Figure 2 This is a structural schematic diagram of the grease filling device for bearing production of the present invention without the outer shell; Figure 3 This is a structural schematic diagram of the grease filling device for bearing production of the present invention, excluding the housing and the bearing; Figure 4 This is a schematic diagram of the connection between the support arm and the injection assembly in the grease filling device for bearing production of the present invention; Figure 5 This is a schematic cross-sectional view of the connection between the injection cylinder and the filling plate in the grease filling device for bearing production of the present invention; Figure 6 This is a schematic structural diagram of the injection cylinder in the grease filling device for bearing production of the present invention; Figure 7 This is a schematic diagram of the internal structure of the filling plate in the grease filling device for bearing production of the present invention; Figure 8 This is a schematic structural diagram of the base of the grease filling device for bearing production of the present invention; Figure 9 This is a schematic structural diagram of a turntable in a grease filling device for bearing production according to the present invention; Figure 10 This is a schematic diagram of the connection between the limit rod and the limit block in the grease filling device for bearing production of the present invention.

[0016] Description of reference numerals: 1. Bearing; 10. Base; 11. Base; 111. First accommodating groove; 112. Drive motor; 113. Slide plate; 12. Boss; 121. Second accommodating groove; 122. Driving gear; 123. Spin rack; 124. Connecting plate; 20. Turntable; 21. Positioning assembly; 211. Positioning column; 2111. Limiting hole; 212. Limiting rod; 2121. Retaining ring; 2122. Push rod; 2123. Sliding column; 213. Limiting spring; 214. Limiting block; 2141. Sliding groove; 215. Support ring; 2151. Striped groove; 216. Spin gear Wheel; 22. Top ring; 221. Driven gear; 23. Bottom ring; 30. Support arm; 31. Support upright; 32. First crossbar; 33. Second crossbar; 40. Injection assembly; 41. Cylinder; 42. Injection barrel; 421. Limiting ring; 422. Return spring; 423. Positioning groove; 43. Piston; 44. Filling plate; 441. Filling hole; 442. Plate body; 443. One-way valve; 444. Positioning ring; 445. Filling channel; 45. Hose; 46. Connector; 461. Screw; 462. Nut; 50. Housing; 51. Access port. DETAILED DESCRIPTION

[0017] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0018] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0020] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0021] Reference Figures 1 to 10 In one embodiment of the present invention, a grease filling device for bearing 1 production includes a base 10, a turntable 20, a support arm 30 and an injection assembly 40. The turntable 20 is sleeved on the base 10 and rotatably connected to the base 10. A plurality of bearings 1 and a positioning assembly 21 for limiting the rotation of the inner ring of the bearing 1 are evenly distributed on the turntable 20. The injection assembly 40 is used to inject grease into the bearing 1 from top to bottom. The injection assembly 40 is fixedly connected to the support arm 30, and the support arm 30 is connected to the base 10. The injection assembly 40 includes a cylinder 41, an injection barrel 42, a piston 43, a filling disc 44 and a hose 45. The inner cavity of the injection barrel 42 is filled with grease. Grease, the output end of the cylinder 41 is connected to the piston 43, the cylinder 41 is located above the injection cylinder 42, the piston 43 is embedded in the injection cylinder 42 and adapted to it, the filling disk 44 is rotatably connected to the lower end of the injection cylinder 42, and a plurality of filling holes 441 are evenly provided at the lower end of the filling disk 44. The filling holes 441 are connected to the inner cavity of the injection cylinder 42, and the piston 43 is connected to the filling disk 44 through a connecting piece 46, and the connecting piece 46 is used to drive the filling disk 44 to rotate when the piston 43 moves in the inner cavity of the injection cylinder 42. One end of the hose 45 is connected to the lower end side wall of the injection cylinder 42, and the other end of the hose 45 is connected to the storage barrel for containing grease.

[0022] In a grease filling device for bearing 1 production according to an embodiment of the present invention, a plurality of bearings 1 are provided on a turntable 20. After the injection assembly 40 fills grease into a single bearing 1, the turntable 20 is driven to rotate the position of one bearing 1 to start filling the next bearing 1. The operation is continuous and the filling efficiency is high. During filling, the cylinder 41 can drive the piston 43 to move downward along the inner cavity of the injection cylinder 42, thereby squeezing the grease in the injection cylinder 42 downward to the filling disk 44, and then filling the bearing 1 with grease through the filling hole 441 on the filling disk 44. At the same time, due to the action of the connecting piece 46, the piston 43 When moving downward, the filling disk 44 can realize self-rotation, thereby ensuring that the grease of the bearing 1 is evenly filled. After the filling is completed, the cylinder 41 drives the piston 43 to reset. At this time, negative pressure will be generated in the injection cylinder 42, and the grease in the storage barrel can be automatically sucked into the injection cylinder 42 through the hose 45 to complete the grease replenishment. It can basically ensure that the replenished grease is equivalent to the consumption, that is, the amount of grease filled in each bearing 1 is the same, which improves the uniformity of filling. In addition, the grease replenishment adopts a purely mechanical principle, which reduces the use of electrical equipment and provides a guarantee for the continuity and stability of grease filling.

[0023] The connecting piece 46 includes a screw 461 and a nut 462. The piston 43 is a hollow structure. The nut 462 is fixedly connected to the inner cavity of the piston 43. The screw 461 is threadedly connected to the nut 462. The output shaft of the cylinder 41 is a hollow structure, and the diameter of the inner cavity of the output shaft of the cylinder 41 is larger than the diameter of the screw 461. The lower end of the screw 461 is fixedly connected to the filling plate 44. The piston 43 is a hollow structure, which is convenient for installing the nut 462 and for the screw 461 to pass through the piston 43, so that the piston 43 moves downward and the screw 461 rotates on its own, and the hollow structure of the cylinder 41 is also for the convenience of embedding the screw 461. The screw 461 is fixedly connected to the filling disk 44, so that when the piston 43 moves downward, the screw 461 can rotate with the filling disk 44, that is, the grease is in a rotating state and is filled toward the bearing 1, ensuring the uniformity of the grease filling of the bearing 1; in this embodiment, the piston 43 and the injection cylinder 42 have good sealing performance, thereby ensuring that the injection cylinder 42 can generate sufficient negative pressure to replenish new grease after consuming a certain amount of grease.

[0024] The support arm 30 includes a support upright 31, a first cross bar 32 and a second cross bar 33. The support upright 31 is fixedly connected to the upper end surface of the base 10. The first cross bar 32 and the second cross bar 33 are fixedly connected to the side wall of the support upright 31, and the first cross bar 32 is located directly above the second cross bar 33. The lower end of the cylinder 41 passes through the end of the first cross bar 32 away from the support upright 31 and is fixedly connected to the first cross bar 32. The injection tube 42 passes through the end of the second cross bar 33 away from the support upright 31 and is movably connected to the second cross bar 33. The two ends of the cylinder 42 are provided with a limiting ring 421, and the outer wall of the injection cylinder 42 is provided with a return spring 422. The lower end of the return spring 422 abuts against the upper end surface of the second cross bar 33, and the upper end of the return spring 422 abuts against the lower end surface of the limiting ring 421. The diameter of the inner hole of the limiting ring 421 is smaller than the outer diameter of the piston 43; the support arm 30 can effectively position the injection assembly 40, and the cylinder 41 corresponds to the injection cylinder 42 up and down. At the same time, since the injection cylinder 42 is movably connected to the second cross bar 33, it can be ensured under the action of the return spring 422. Will not fall; in this embodiment, the initial position of the filling disk 44 has a gap with the bearing 1 below. When the piston 43 moves downward, the injection cylinder 42 will be subjected to a downward force, that is, as the piston 43 moves downward, the injection cylinder 42 will also move downward until the filling disk 44 abuts against the bearing 1, which can ensure that the grease will not be thrown out by the self-rotating filling disk 44, thereby improving the utilization rate of the grease and avoiding the waste of the grease spraying out or affecting the normal filling; the limiting ring 421 can block the piston 43, and the piston 43 drops to the limit position at the lower end. When the ring 421 abuts, it means that all the grease in the injection cylinder 42 has been squeezed out. When the piston 43 is reset to abut against the limit ring 421 at the upper end, the injection cylinder 42 can be lifted up. At the same time, the injection cylinder 42 will also move up under the action of the return spring 422. The elastic force of the return spring 422 is less than the force exerted on the injection cylinder 42 when the piston 43 is squeezed downward, thereby ensuring that the injection cylinder 42 can move up and down; in this embodiment, the second cross bar 33 is close to the side of the supporting vertical rod 31 for an upward inclined structure, which can improve the stability of the second cross bar 33.

[0025] The filling disk 44 includes a disk body 442, a one-way valve 443 and a retaining ring 444. A plurality of filling channels 445 radiating outward from the center of the disk body 442 are evenly arranged in the disk body 442. The filling channels 445 are connected to the filling hole 441. The filling hole 441 corresponds to the ball of the bearing 1 to be filled with grease. The one-way valve 443 is located at the inner center of the disk body 442 and is connected to all the filling channels 445. The retaining ring 444 is located at the upper end of the disk body 442. The retaining ring 444 is connected to the one-way valve 443. The retaining ring 444 consists of two upper and lower rings, and the outer diameter of the upper ring is larger than the outer diameter of the lower ring. The lower end of the injection cylinder 42 is provided with a retaining groove 423 adapted to the retaining ring 444. The screw 461 is fixedly connected to the inner wall of the inner hole of the retaining ring 444, and the retaining ring 444 is a structure that is through-through. ; The setting of the one-way valve 443 can ensure that negative pressure can be generated in the injection cylinder 42 when the piston 43 moves upward, thereby avoiding the grease in the disk body 442 or even on the bearing 1 from being sucked back into the injection cylinder 42. The internal structure of the disk body 442 can ensure that the grease is evenly filled into the bearing 1. The structure of the retaining ring 444 and the retaining groove 423 can enable the filling disk 44 to rotate relative to the injection cylinder 42 and be stably connected to the injection cylinder 42; in this embodiment, the hose 45 is connected to the limiting ring 421 at the lower end, and the hose 45 can move up and down with the injection cylinder 42. The inner hole of the retaining ring 444 has a spiral structure, and the screw 461 is fixedly connected to the spiral structure, ensuring that the grease can smoothly enter the retaining ring 444 from the injection cylinder 42, and finally be filled into the bearing 1 through the one-way valve 443 and the filling channel 445.

[0026] The base 10 includes a base 11 and a boss 12. Both the base 11 and the boss 12 are cylindrical structures, and the diameter of the boss 12 is smaller than the diameter of the base 11. The turntable 20 includes a top ring 22 and a bottom ring 23. The inner hole diameter of the top ring 22 is larger than the outer diameter of the boss 12 and smaller than the outer diameter of the base 11. The top ring 22 abuts against the upper end surface of the base 11, and the bottom ring 23 is sleeved on the side wall of the base 11. The inner hole diameter of the bottom ring 23 is adapted to the outer diameter of the base 11. The side wall of the seat 11 is provided with a first receiving groove 111, and the first receiving groove 111 is provided with a driving motor 112 arranged upward. The side wall of the boss 12 is provided with a second receiving groove 121, and the second receiving groove 121 is provided with a driving gear 122 connected to the driving motor 112. The inner wall of the inner hole of the top ring 22 is provided with a driven gear 221, and the driving gear 122 is meshed with the driven gear 221. The base 11 supports the top ring 22, and the bottom ring 2 3 can prevent the top ring 22 from being misplaced. By driving the motor 112 to rotate the driving gear 122, and the driving gear 122 then drives the driven gear 221 to rotate, the rotation of the turntable 20 can be achieved. In this embodiment, due to the function of the positioning assembly 21, under normal circumstances, when the turntable 20 rotates, the bearing 1 thereon does not rotate on its own, but rotates together with the turntable 20. In specific implementation, the driving motor 112 is a stepping motor or other motor, but is not limited thereto. The angle and time interval of the driving motor 112 to drive the turntable 20 to rotate can be set to ensure that the bearings 1 on the turntable 20 can be greased one by one. Intermittent operation also facilitates the removal and replacement of the bearings 1. In this embodiment, the lower end of the base 10 can be fixedly connected to the workbench by bolts. The outer diameter of the top ring 22 is larger than the diameter of the base 11. The base 11 and the boss 12 are an integral structure, and the top ring 22 and the bottom ring 23 are also an integral structure.

[0027] The positioning assembly 21 includes a positioning column 211, a limiting rod 212, a limiting spring 213 and a limiting block 214. The positioning column 211 is fixedly connected to the turntable 20. The positioning column 211 passes through the bearing 1 on the turntable 20, and the positioning column 211 is adapted to the inner ring of the bearing 1. A limiting hole 2111 is provided on the positioning column 211 that passes through its center. The upper end of the limiting rod 212 is embedded in the center of the positioning column 211 and extends into the limiting hole 2111. The lower end of the limiting rod 212 passes through the turntable 20. The lower end of the limiting rod 212 is provided with a retaining ring 2121. The limiting spring 213 is sleeved on the lower end of the limiting rod 212. The upper end of the limiting spring 213 is in contact with the turntable The lower end surface of 20 abuts, the lower end of the limiting spring 213 abuts against the upper end surface of the retaining ring 2121, the limiting rod 212 is movably connected to the turntable 20 and the limiting column, the limiting block 214 is provided with two pieces, respectively located at the two ends of the limiting hole 2111, the limiting block 214 is provided with an inclined sliding groove 2141, the upper end of the limiting rod 212 is provided with a push rod 2122 embedded in the sliding groove 2141, the push rod 2122 is slidably connected to the sliding groove 2141, and the push rod 2122 is used to drive the limiting block 214 to the middle of the limiting hole 2111 or away from the middle of the limiting hole 2111 when the limiting rod 212 moves up and down; when the bearing 1 needs to be positioned, the push rod 21 22 moves downward, pushing the limit block 214 in the direction away from the middle of the limit hole 2111 until the limit block 214 extends out of the limit hole 2111 and abuts against the inner ring of the bearing 1 sleeved on the positioning column 211, thereby realizing the positioning of the inner ring of the bearing 1, and the limit spring 213 provides kinetic energy for the abutment of the limit block 214 and the bearing 1. When the bearing 1 needs to be released from positioning, the push rod 2122 moves upward, pushing the limit block 214 in the direction close to the middle of the limit hole 2111, so that the limit block 214 is embedded in the limit hole 2111, thereby realizing the release of the positioning of the bearing 1, which is convenient for taking and replacing; in this embodiment, the limit hole 2111 is a square hole structure, and the limit Block 214 has a trapezoidal structure, and the oblique side faces the middle of the limiting hole 2111. The slide groove 2141 passes through the limiting block 214. The push rod 2122 has a square structure. The left and right sides of the push rod 2122 are respectively embedded in the slide grooves 2141 of the two limiting blocks 214. When the push rod 2122 moves down along the slide groove 2141, due to the inclination of the slide groove 2141, the push rod 2122 can push the limiting block 214 in the direction away from the middle of the limiting hole 2111. When the push rod 2122 moves up along the slide groove 2141, due to the inclination of the slide groove 2141, the push rod 2122 can pull the limiting block 214 toward the middle of the limiting hole 2111.

[0028] The side wall of the turntable 20 is provided with a slide plate 113, and the upper end surface of the slide plate 113 is an arched structure. The side wall of the retaining ring 2121 is provided with a slide post 2123, and the height of the slide post 2123 is lower than the upper end surface of the slide plate 113. The slide post 2123 is used to abut against the upper end surface of the slide plate 113 and slide along the upper end surface of the slide plate 113 when the turntable 20 rotates; by providing the slide plate 113, the positioning rod can be controlled to move up in a specific area, thereby realizing the positioning release of the bearing 1, which is convenient for taking and replacing the bearing 1; in this embodiment, the position of the slide plate 113 corresponds to the position of the take-and-put port 51, that is, when the greased bearing 1 needs to be removed, the turntable 20 rotates and the slide post 2123 slides along the slide plate 113, releasing the positioning of the inner ring of the bearing 1, thereby removing the bearing 1 and replacing a new bearing 1 to be greased. In specific implementation, the upper end of the slide plate 113 has a horizontal structure, which can extend the time and stability of the bearing 1 positioning release.

[0029] A support ring 215 and a spin gear 216 are sleeved on the positioning column 211. The spin gear 216 is located at the lower end of the support ring 215 and is fixedly connected to the support ring 215. The support ring 215 and the spin gear 216 are rotatably connected to the positioning column 211. The bearing 1 is located on the support ring 215. The upper end surface of the support ring 215 is evenly provided with a plurality of striped grooves 2151. The spin gear 216 abuts against the upper end surface of the turntable 20. A spin rack 123 meshing with the spin gear 216 is provided above the turntable 20. The spin rack 123 is fixedly connected to the upper end surface of the base 10 through a connecting plate 124. The support ring 215 supports the bearing 1. When the bearing 1 filled with grease rotates to the position of the spin rack 123, the spin gear 216 and the spin rack 123 are rotated. The rack 123 is engaged, and through the rotational force of the turntable 20, the spin gear 216 is rotated to realize the self-rotation of the bearing 1, so that the grease can better penetrate into the bearing 1, and the uniformity of the grease filling is improved. The setting of the striped groove 2151 can increase the friction between the outer ring of the bearing 1 and the support ring 215, ensuring that the bearing 1 can smoothly rotate; in this embodiment, the self-spinning rack 123 needs to be engaged with the self-spinning gear 216 after the bearing 1 is filled with grease. Therefore, according to the rotation direction of the turntable 20, it is installed at the rear end of the injection assembly 40, and at the front end of the take-and-put port 51 to ensure that the bearing 1 is replaced only after it has experienced self-rotation; in this embodiment, the connecting plate 124 and the self-spinning rack 123 are an integrated structure.

[0030] It also includes a shell 50, which is provided with a take-in and put-out port 51, and the take-in and put-out port 51 is located between the injection assembly 40 and the spin rack 123; in this embodiment, the shell 50 covers the base 10, the turntable 20, the injection assembly 40, and the support arm 30 to reduce the impact of the workshop environment on the grease filling of the bearing 1; in this embodiment, the hose 45 passes through the shell 50 and is connected to a preset storage barrel.

[0031] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0032] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements 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 grease filling device for bearing production, characterized in that: The invention comprises a base, a turntable, a support arm and an injection assembly, wherein the turntable is sleeved on the base and rotatably connected to the base, a plurality of bearings and a positioning assembly for limiting the rotation of the inner ring of the bearing are evenly distributed on the turntable, the injection assembly is fixedly connected to the support arm, and the support arm is connected to the base; The injection assembly includes a cylinder, an injection barrel, a piston, a filling plate, and a hose. The inner cavity of the injection barrel is filled with grease. The output end of the cylinder is connected to the piston. The cylinder is located above the injection barrel. The piston is embedded in the injection barrel and adapted thereto. The filling plate is rotatably connected to the lower end of the injection barrel. A plurality of filling holes are evenly arranged at the lower end of the filling tray, and the filling holes are connected to the inner cavity of the injection cylinder. The piston is connected to the filling tray through a connector, one end of the hose is connected to the lower end side wall of the injection cylinder, and the other end of the hose is connected to a storage barrel for containing grease.

2. The grease filling device for bearing production according to claim 1, characterized in that: The connecting part includes a screw and a nut, the piston is a hollow structure, the nut is fixedly connected to the inner cavity of the piston, the screw is threadedly connected to the nut, the output shaft of the cylinder is a hollow structure, and the diameter of the inner cavity of the output shaft of the cylinder is larger than the diameter of the screw, and the lower end of the screw is fixedly connected to the filling plate.

3. The grease filling device for bearing production according to claim 1, characterized in that: The support arm includes a support upright, a first cross bar and a second cross bar, the support upright is fixedly connected to the upper end surface of the base, the first cross bar and the second cross bar are fixedly connected to the side wall of the support upright, and the first cross bar is located directly above the second cross bar; The lower end of the cylinder passes through one end of the first cross bar away from the supporting upright bar and is fixedly connected to the first cross bar. The injection tube passes through one end of the second cross bar away from the supporting upright bar and is movably connected to the second cross bar. Limiting rings are provided at both ends of the injection tube. A return spring is provided on the outer wall of the injection tube. The lower end of the return spring abuts against the upper end surface of the second cross bar, and the upper end of the return spring abuts against the lower end surface of the limiting ring.

4. The grease filling device for bearing production according to claim 2, characterized in that: The filling tray includes a tray body, a one-way valve and a retaining ring. The tray body is evenly provided with a plurality of filling channels diverging outward from the center of the tray body. The filling channels are connected to the filling holes. The filling holes correspond to the balls of the bearings to be filled with grease. The one-way valve is located at the inner center of the tray body and is connected to all the filling channels. The retaining ring is located at the upper end of the disc body, and the retaining ring is connected to the one-way valve. The retaining ring is composed of two upper and lower rings, and the outer diameter of the upper ring is larger than the outer diameter of the lower ring. The lower end of the injection cylinder is provided with a retaining groove adapted to the retaining ring, the screw is fixedly connected to the inner wall of the inner hole of the retaining ring, and the retaining ring is a structure that is through-through from top to bottom.

5. The grease filling device for bearing production according to claim 1, characterized in that: The base includes a pedestal and a boss, both of which are cylindrical structures, and the diameter of the boss is smaller than the diameter of the pedestal. The turntable includes a top ring and a bottom ring, the inner hole diameter of the top ring is larger than the outer diameter of the boss and smaller than the outer diameter of the pedestal, and the top ring abuts against the upper end surface of the pedestal; The bottom ring is sleeved on the side wall of the base, the inner hole diameter of the bottom ring is adapted to the outer diameter of the base, the side wall of the base is provided with a first accommodating groove, the first accommodating groove is provided with a driving motor arranged upward, the side wall of the boss is provided with a second accommodating groove, the second accommodating groove is provided with a driving gear connected to the driving motor, and the inner wall of the inner hole of the top ring is provided with a driven gear, and the driving gear is meshed and connected with the driven gear.

6. The grease filling device for bearing production according to claim 1, characterized in that: The positioning assembly includes a positioning column, a limiting rod, a limiting spring and a limiting block. The positioning column is fixedly connected to the turntable. The positioning column passes through the bearing on the turntable, and the positioning column is adapted to the inner ring of the bearing. A limiting hole is provided on the positioning column passing through its center. The upper end of the limiting rod is embedded in the center of the positioning column and extends into the limiting hole. The lower end of the limiting rod passes through the turntable. A retaining ring is provided at the lower end of the limiting rod. The limiting spring is sleeved on the lower end of the limiting rod. The upper end of the limit rod abuts against the lower end surface of the turntable, the lower end of the limit spring abuts against the upper end surface of the retaining ring, the limit rod is movably connected to the turntable and the limit column, the limit block is provided with two blocks, which are respectively located at the two ends of the limit hole, and the limit block is provided with an inclined slide groove, and the upper end of the limit rod is provided with a push rod embedded in the slide groove, the push rod is slidably connected to the slide groove, and the push rod is used to drive the limit block close to the middle of the limit hole or away from the middle of the limit hole when the limit rod moves up and down.

7. The grease filling device for bearing production according to claim 6, characterized in that: The side wall of the turntable is provided with a slide, the upper end face of the slide is an arched structure, and the side wall of the retaining ring is provided with a slide column, the height of the slide column is lower than the upper end face of the slide, and the slide column is used to abut against the upper end face of the slide and slide along the upper end face of the slide when the turntable rotates.

8. The grease filling device for bearing production according to claim 6, characterized in that: A support ring and a spin gear are sleeved on the positioning column. The spin gear is located at the lower end of the support ring and is fixedly connected to the support ring. The support ring and the spin gear are rotatably connected to the positioning column. The bearing is located on the support ring. The upper end surface of the support ring is evenly provided with a plurality of striped grooves. The spin gear abuts against the upper end surface of the turntable. A spin rack meshing with the spin gear is provided above the turntable. The spin rack is fixedly connected to the upper end surface of the base through a connecting plate.

9. The grease filling device for bearing production according to claim 8, characterized in that: It also includes a shell, which is provided with a take-in and put-out port, and the take-in and put-out port is located between the injection assembly and the spin rack.

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