Coupler self-lubricating device

Abstract

The utility model discloses a coupler self-lubricating device, which belongs to the technical field of couplings and comprises a coupler body which comprises a first connecting pipe and a second connecting pipe arranged on one side of the first connecting pipe. The inner walls of the opposite ends of the first connecting pipe and the second connecting pipe are each provided with two symmetrically-distributed limiting grooves, the side walls of the first connecting pipe and the second connecting pipe are each fixedly sleeved with a transmission gear, and the side walls of the first connecting pipe and the second connecting pipe are each slidably sleeved with a fixing pipe. Through the arrangement of the oil supplementing assembly, the first connecting pipe and the second connecting pipe rotate to drive the smearing rod on the same side to rotate, the smearing rod is made of cotton and has a high permeation effect, lubricating oil can conveniently flow out and then enter the fixing pipe through the liquid inlet hole to make contact with a transmission gear on the same side, and the effect of lubricating the transmission gear can be achieved; and the effect of automatically supplementing lubricating oil is achieved, and the transmission effect of equipment is kept.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and more specifically, to a self-lubricating device for couplings. Background Technology

[0002] A coupling is a device that connects two shafts or a shaft and a rotating component, allowing them to rotate together during the transmission of motion and power, and not disengage under normal circumstances. Sometimes it also serves as a safety device to prevent the connected components from bearing excessive loads, providing overload protection. Couplings, also known as shaft couplings, are mechanical components used to firmly connect the driving and driven shafts in different mechanisms, allowing them to rotate together and transmit motion and torque. They are often composed of two halves, connected separately by keys or tight fits, fastened to the two shaft ends, and then connected together in some way. There are many types of couplings. Some couplings require lubrication to reduce friction, such as gear couplings.

[0003] Some existing gear couplings require the connected machine to be stopped and the coupling disassembled before lubrication can be added. This process is time-consuming and may reduce the operating efficiency of the connected machine. Therefore, to solve these problems, we propose a self-lubricating coupling device. Utility Model Content

[0004] To solve the above problems, this utility model provides a self-lubricating device for couplings, adopting the following technical solution:

[0005] A self-lubricating coupling device includes a coupling body, which comprises a first connecting pipe and a second connecting pipe disposed on one side of the first connecting pipe. Two symmetrically distributed limiting grooves are formed on the inner walls of opposite ends of both the first and second connecting pipes. A transmission gear is fixedly sleeved on the side walls of both the first and second connecting pipes. A fixing pipe is slidably sleeved on the side walls of both the first and second connecting pipes. Gear grooves matching the transmission gears on the same side are formed on the inner walls of opposite sides of the two fixing pipes. Flanges are fixedly installed on opposite sides of the two fixing pipes and secured together by bolts and nuts. A collar is rotatably sleeved on the side walls of both fixing pipes, and a liquid storage tank is formed within each collar. An oil replenishment assembly is provided between the two fixing pipes and the collars on the same side.

[0006] By adopting the above technical solution, when using this equipment, the operator connects the coupling body to the machine to be connected in the prior art. The coupling body consists of a first connecting pipe and a second connecting pipe. Then, two fixed pipes are respectively fitted onto the side walls of the first and second connecting pipes, so that the gear grooves opened on the inner side of the fixed pipes connect with the transmission gears on the same side. Then, the first and second connecting pipes are assembled by the cooperation of bolts, nuts and flanges. After the first and second connecting pipes are assembled, the coupling body is rotated by the machine. There are oil replenishing components between the two fixed pipes and the collar on the same side. When the machine drives the coupling body to rotate, the oil replenishing components simultaneously replenish lubricating oil to the inner side of the fixed pipe on the same side, which lubricates the transmission gears and gear grooves on the same side. This helps to reduce the friction generated when the coupling body is running, helps to maintain the operating effect of the coupling body, and does not require stopping the machine to add lubricating oil, which helps to maintain the operating effect of the machine.

[0007] Furthermore, the oil replenishment component includes a baffle fixedly installed in the liquid storage tank. The side wall of the baffle has multiple through holes arranged in a linear array. The liquid storage tank is divided into a liquid guiding tank and a replenishment tank by the baffle. The liquid guiding tank has an outlet on the side of the fixed tube on the same side. An applicator is rotatably installed in the outlet. A push plate is slidably installed in the replenishment tank. Multiple springs arranged in a linear array are fixedly installed between the inner wall of the push plate on the side away from the baffle and the side opposite to the replenishment tank. Filter cotton is provided on the side of the baffle near the push plate. Multiple liquid inlet holes arranged in a ring array are opened on the outer side of both fixed tubes. A counterweight is fixedly installed on the side wall of both collars.

[0008] By adopting the above technical solution, when the first connecting pipe and the second connecting pipe rotate synchronously, the first connecting pipe and the second connecting pipe utilize the engagement force of the transmission gear sleeved on the side wall and the gear groove opened on the inner side of the fixed pipe on the same side, which facilitates driving the fixed pipe on the same side to rotate synchronously. Because the collar and the fixed pipe on the same side are rotatably installed, and the collar side wall is provided with a counterweight, the collar will not rotate with the fixed pipe on the same side when the fixed pipe rotates. When the fixed pipe rotates, under the action of friction, the fixed pipe pushes the applicator rod on the same side to rotate, thereby causing the lubricating oil inside the liquid guide groove to be discharged. Moreover, the applicator rod is made of cotton material, which has good adsorption properties. This facilitates the discharge of lubricating oil by the rotating and squeezing action of the fixed tube on the same side. The lubricating oil enters the interior through the inlet hole on the side wall of the fixed tube. The lubricating oil acts between the transmission gear and gear groove on the same side, thus lubricating the coupling body. There is no need to stop the machine to add lubricating oil, which helps maintain the transmission effect of the equipment. When the lubricating oil in the guide tank is continuously discharged, the push plate in the replenishment tank moves towards the baffle under the elastic force of the spring. The push plate pushes the lubricating oil in the replenishment tank into the guide tank through the through hole on the side wall of the baffle, achieving the effect of replenishing lubricating oil and facilitating subsequent continuous oil replenishment.

[0009] Furthermore, sliders are fixedly installed on both sides of the two push plates, and the inner wall of the supplementary groove is provided with a groove that matches the slider on the same side.

[0010] By adopting the above technical solution, when the push plate slides in the replenishment groove, the push plate, along with the slider, slides in the same side groove. The cooperation between the slider and the groove helps to maintain the stability of the push plate sliding in the replenishment groove.

[0011] Furthermore, each of the two collars is fixedly installed with an inlet pipe on its opposite side, and the opposite ends of the two inlet pipes extend into the replenishment groove on the same side. The opposite sidewalls of the two inlet pipes are fitted with nuts, and the opposite sidewalls of the two inlet pipes are provided with threads that match the nuts on the same side.

[0012] By adopting the above technical solution, the side wall of the collar is provided with a liquid inlet pipe. The operator can add lubricating oil into the liquid storage tank through the liquid inlet pipe. Then, the nut can be screwed into the threaded end of the liquid inlet pipe to seal the liquid inlet pipe.

[0013] Furthermore, two symmetrically distributed rotating rings are fixedly installed on the inner sides of both collars, and annular grooves matching the rotating rings on the same side are opened on the outer sides of both fixed tubes.

[0014] By adopting the above technical solution, two symmetrically distributed rotating rings are provided on the inner side of the collar. The rotating rings slide in the annular groove opened on the outer side of the fixed tube on the same side. Through the cooperation of the rotating rings and the annular groove, the positioning collar can be restricted.

[0015] Furthermore, grooves are provided on the inner sides of opposite ends of the two fixed tubes, and rubber rings are provided in both grooves. Sealing gears are fixedly sleeved on the opposite sidewalls of the first and second connecting tubes.

[0016] By adopting the above technical solution, the rubber rings on the inner sides of the two fixed tubes not only seal the gaps between the first connecting tube, the second connecting tube, and the fixed tube on the same side, but also reduce friction. The sealing gears on the outer sides of the first and second connecting tubes further seal the gaps between them, helping to prevent lubricating oil from flowing out.

[0017] Furthermore, a sealing ring is fixedly installed on the inner side of each of the two fixed tubes.

[0018] By adopting the above technical solution, the sealing rings on the inner sides of the two fixed tubes achieve the function of sealing the fixed tubes, which helps to prevent lubricating oil leakage.

[0019] In summary, this utility model has the following beneficial technical effects:

[0020] (1) In this utility model, by setting up the oil replenishment component, the first connecting pipe and the second connecting pipe rotate to drive the same side application rod to rotate. The application rod is made of cotton and has a high penetration effect, which facilitates the flow of lubricating oil. Then, it enters the fixed pipe through the liquid inlet hole and contacts the same side transmission gear, which can achieve the effect of lubricating the transmission gear and achieve the effect of automatically replenishing lubricating oil, which is conducive to maintaining the transmission effect of the equipment.

[0021] (2) In this utility model, the side wall of the collar is provided with a counterweight. The collar is rotatably installed on the side wall of the fixed tube. When the fixed tube rotates, the same group of applicators and the counterweight are symmetrically distributed on the same side collar. The applicator is always located at the top under the action of the weight of the counterweight on the same side, which facilitates the lubricating oil to enter the interior of the fixed tube. Attached Figure Description

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This utility model Figure 1 Enlarged view of A in the middle;

[0024] Figure 3 This is a cross-sectional view of a portion of the structure of this utility model;

[0025] Figure 4 This is a cross-sectional view of the collar in this utility model;

[0026] Figure 5 This is a partial view of the structure of this utility model.

[0027] Explanation of the labels in the diagram:

[0028] 1. Coupling body; 11. First connecting pipe; 12. Fixed pipe; 13. Flange; 14. Second connecting pipe; 2. Collar; 3. Counterweight; 4. Inlet pipe; 5. Nut; 6. Rubber ring; 7. Liquid storage tank; 71. Applying rod; 72. Liquid guiding groove; 73. Replenishment groove; 731. Spring; 732. Push plate; 8. Transmission gear; 9. Sealing gear; 10. Baffle. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following is in conjunction with the appendix Figure 1-5 The utility model is described in further detail.

[0033] Please see Figure 1-5 A self-lubricating coupling device includes a coupling body 1. The coupling body 1 includes a first connecting pipe 11 and a second connecting pipe 14 disposed on one side of the first connecting pipe 11. The inner walls of the opposite ends of the first connecting pipe 11 and the second connecting pipe 14 are provided with two symmetrically distributed limiting grooves. The side walls of the first connecting pipe 11 and the second connecting pipe 14 are fixedly fitted with transmission gears 8. The side walls of the first connecting pipe 11 and the second connecting pipe 14 are slidably fitted with fixed pipes 12. The inner walls of the opposite sides of the two fixed pipes 12 are provided with gear grooves that match the transmission gears 8 on the same side. The opposite sides of the two fixed pipes 12 are fixedly installed with flanges 13. The two flanges 13 are fixed together by bolts and nuts. The side walls of the two fixed pipes 12 are rotatably fitted with collars 2. The two collars 2 are provided with liquid storage tanks 7.

[0034] When using this equipment, the operator connects the coupling body 1 to the machine to be connected in the prior art. The coupling body 1 consists of a first connecting pipe 11 and a second connecting pipe 14. Then, two fixing pipes 12 are respectively fitted onto the side walls of the first connecting pipe 11 and the second connecting pipe 14, so that the gear groove opened on the inner side of the fixing pipe 12 connects with the transmission gear 8 on the same side. Then, the first connecting pipe 11 and the second connecting pipe 14 are assembled by the cooperation of bolts, nuts and flanges 13.

[0035] Oil replenishment components are provided between the two fixed tubes 12 and the same-side collar 2. The oil replenishment components include a baffle 10 fixedly installed in the liquid storage tank 7. Multiple through holes are opened on the side wall of the baffle 10 in a linear array. The liquid storage tank 7 is divided into a liquid guiding tank 72 and a replenishment tank 73 by the baffle 10. The liquid guiding tank 72 has an outlet on the side near the fixed tube 12. An applicator 71 is rotatably installed in the outlet. A push plate 732 is slidably installed in the replenishment tank 73. Multiple springs 731 are fixedly installed on the inner wall of the side of the push plate 732 away from the baffle 10 and opposite to the replenishment tank 73. Filter cotton is provided on the side of the baffle 10 near the push plate 732. Multiple liquid inlet holes are opened on the outer side of the two fixed tubes 12 in a ring array. A counterweight 3 is fixedly installed on the side wall of the two collars 2.

[0036] After the first connecting pipe 11 and the second connecting pipe 14 are assembled, the coupling body 1 is rotated by the machine drive. The first connecting pipe 11 and the second connecting pipe 14 are engaged by the transmission gear 8 sleeved on the side wall and the gear groove opened on the inner side of the fixed pipe 12 on the same side, which facilitates the synchronous rotation of the fixed pipe 12 on the same side. Because the collar 2 is rotatably installed with the fixed pipe 12 on the same side, and the collar 2 is provided with a counterweight 3 on its side wall, the collar 2 will not rotate with the fixed pipe 12 on the same side when the fixed pipe 12 rotates. When the fixed pipe 12 rotates, under the action of friction, the fixed pipe 12 pushes the applicator rod 71 on the same side to rotate, thereby causing the lubricating oil inside the liquid guide groove 72 to be discharged. The applicator rod 71 is made of cotton material, which has good properties. The lubricating oil is easily discharged by the applicator rod 71 under the action of the rotating and squeezing action of the fixed tube 12 on the same side. The lubricating oil enters the interior through the liquid inlet hole opened in the side wall of the fixed tube 12. The lubricating oil acts between the transmission gear 8 and the gear groove on the same side, which can play the role of lubricating the coupling body 1. There is no need to stop the machine to add lubricating oil, which is conducive to maintaining the transmission effect of the equipment. When the lubricating oil in the liquid guide tank 72 is continuously discharged, the push plate 732 in the replenishment tank 73 moves towards the baffle 10 under the action of the spring force 731. The push plate 732 pushes the lubricating oil in the replenishment tank 73 through the through hole opened in the side wall of the baffle 10 into the liquid guide tank 72, achieving the effect of replenishing lubricating oil and facilitating subsequent continuous oil replenishment.

[0037] Both sides of the two push plates 732 are fixedly equipped with sliders. The inner wall of the replenishment groove 73 is provided with a sliding groove that matches the slider on the same side. When the push plate 732 slides in the replenishment groove 73, the push plate 732 slides in the sliding groove on the same side with the slider. The cooperation between the slider and the sliding groove helps to maintain the stability of the push plate 732 sliding in the replenishment groove 73.

[0038] Two collars 2 are each fixedly installed with an inlet pipe 4 on their opposite sides. The opposite ends of the two inlet pipes 4 extend into the replenishment tank 73 on the same side. Nuts 5 are fitted on the side walls of the opposite ends of the two inlet pipes 4. The side walls of the opposite ends of the two inlet pipes 4 are provided with threads that match the nuts 5 on the same side. The inlet pipes 4 are provided on the side walls of the collars 2. Workers can add lubricating oil into the storage tank 7 through the inlet pipes 4. Then, the nuts 5 can be screwed into the threads at the ends of the inlet pipes 4 to seal the inlet pipes 4.

[0039] Two symmetrically distributed rotating rings are fixedly installed on the inner side of each of the two collars 2. Annular grooves matching the rotating rings on the same side are opened on the outer side of each of the two fixed tubes 12. Two symmetrically distributed rotating rings are provided on the inner side of the collar 2. The rotating rings slide in the annular grooves opened on the outer side of the fixed tubes 12 on the same side. Through the cooperation of the rotating rings and the annular grooves, the positioning collar 2 can be restricted.

[0040] The inner sides of the opposite ends of the two fixed tubes 12 are provided with grooves, and rubber rings 6 are provided in the two grooves. Sealing gears 9 are fixedly sleeved on the opposite side walls of the first connecting tube 11 and the second connecting tube 14. Sealing rings are fixedly installed on the inner sides of the two fixed tubes 12. The rubber rings 6 on the inner sides of the two fixed tubes 12 not only seal the gaps between the first connecting tube 11, the second connecting tube 14 and the fixed tube 12 on the same side, but also reduce friction. The sealing gears 9 on the outer sides of the first connecting tube 11 and the second connecting tube 14 further seal the gaps between the first connecting tube 11, the second connecting tube 14 and the fixed tube 12 on the same side, helping to prevent lubricating oil from flowing out.

[0041] The implementation principle of this utility model embodiment is as follows: When using the equipment, the operator connects the coupling body 1 to the machine to be connected in the prior art. The coupling body 1 is connected by a first connecting pipe 11 and a second connecting pipe 14. Then, two fixing pipes 12 are respectively sleeved on the side walls of the first connecting pipe 11 and the second connecting pipe 14, so that the gear groove opened on the inner side of the fixing pipe 12 is connected to the same-side transmission gear 8. Then, the first connecting pipe 11 and the second connecting pipe 14 can be assembled by the cooperation of bolts, nuts and flanges 13. After the first connecting pipe 11 and the second connecting pipe 14 are assembled, the coupling body 1 is driven to rotate by the machine. There are oil replenishing components between the two fixing pipes 12 and the same-side collar 2. When the machine drives the coupling body 1 to rotate, the oil replenishing components simultaneously replenish lubricating oil to the inner side of the same-side fixing pipe 12, which lubricates the same-side transmission gear 8 and gear groove. This helps to reduce the friction generated when the coupling body 1 is running, which helps to maintain the operating effect of the coupling body 1. Moreover, there is no need to stop the machine to add lubricating oil, which helps to maintain the operating effect of the machine.

[0042] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A self-lubricating device for a coupling, comprising a coupling body (1), characterized in that: The coupling body (1) includes a first connecting pipe (11) and a second connecting pipe (14) disposed on one side of the first connecting pipe (11). The inner walls of the opposite ends of the first connecting pipe (11) and the second connecting pipe (14) are provided with two symmetrically distributed limiting grooves. The side walls of the first connecting pipe (11) and the second connecting pipe (14) are fixedly fitted with transmission gears (8). The side walls of the first connecting pipe (11) and the second connecting pipe (14) are slidably fitted with fixed pipes (12). The inner walls of the opposite sides of the two fixed pipes (12) are provided with gear grooves that match the transmission gears (8) on the same side. The opposite sides of the two fixed pipes (12) are fixedly installed with flanges (13). The two flanges (13) are fixed together by bolts and nuts. The side walls of the two fixed pipes (12) are rotatably fitted with collars (2). The collars (2) are provided with liquid storage tanks (7). The two fixed pipes (12) and the collars (2) on the same side are provided with oil replenishment components.

2. The self-lubricating device for a coupling according to claim 1, characterized in that: The oil replenishment assembly includes a baffle (10) fixedly installed in the liquid storage tank (7). The side wall of the baffle (10) has multiple through holes arranged in a linear array. The liquid storage tank (7) is divided into a liquid guiding tank (72) and a replenishment tank (73) by the baffle (10). The liquid guiding tank (72) has an outlet on the side near the fixed tube (12) on the same side. An applicator (71) is rotatably installed in the outlet. A push plate (732) is slidably installed in the replenishment tank (73). Multiple springs (731) arranged in a linear array are fixedly installed between the inner wall of the push plate (732) away from the baffle (10) and the side opposite to the replenishment tank (73). Filter cotton is provided on the side of the baffle (10) near the push plate (732). Multiple inlet holes arranged in a ring array are opened on the outer side of both fixed tubes (12). A counterweight (3) is fixedly installed on the side wall of both collars (2).

3. The self-lubricating device for a coupling according to claim 2, characterized in that: Both sides of the two push plates (732) are fixedly equipped with sliders, and the inner wall of the supplementary groove (73) is provided with a groove that matches the slider on the same side.

4. A self-lubricating coupling device according to claim 2, characterized in that: Each of the two collars (2) is fixedly installed with an inlet pipe (4) on one side opposite to the other. The opposite ends of the two inlet pipes (4) extend into the replenishment groove (73) on the same side. The opposite sidewalls of the two inlet pipes (4) are fitted with nuts (5), and the opposite sidewalls of the two inlet pipes (4) are provided with threads that match the nuts (5) on the same side.

5. A self-lubricating coupling device according to claim 1, characterized in that: Two symmetrically distributed rotating rings are fixedly installed on the inner side of each of the two collars (2), and annular grooves matching the rotating rings on the same side are opened on the outer side of each of the two fixed tubes (12).

6. A self-lubricating coupling device according to claim 1, characterized in that: The inner sides of the opposite ends of the two fixed tubes (12) are provided with grooves, and rubber rings (6) are provided in the two grooves. The side walls of the opposite ends of the first connecting tube (11) and the second connecting tube (14) are fixedly fitted with sealing gears (9).

7. A self-lubricating coupling device according to claim 1, characterized in that: A sealing ring is fixedly installed on the inner side of each of the two fixed tubes (12).

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