Lubricant injection device for machinery

Abstract

The utility model discloses a lubricant injection device for machinery, and relates to the technical field of machinery maintenance auxiliary equipment, the lubricant injection device for machinery comprises an injection cylinder, an injection assembly and an opening and closing assembly, in the lubricant injection device, paste lubricant can be uniformly coated on the surface of a worm through a conical cover to avoid local accumulation and waste, and meanwhile, the lubricant can be injected into the worm through a binding opening of the conical cover. The surface of a lubricated object can be tightly coated with a pasty lubricant, so that the adhesiveness of the lubricant after coating is improved, the lubricant is evenly extruded out through the discharging ring, the arc groove and the discharging opening when being extruded out, meanwhile, a conical barrel-shaped structure formed by the discharging ring and the conical cover can prevent too much extruded lubricant from dripping, and the lubricating effect of the lubricant is improved. And excessive lubricant can be coated on a lubricated object by moving the discharging ring and the conical cover, so that the situation that the lubricant drips when the excessive lubricant is extruded by a traditional needle injection device is avoided, and waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical maintenance auxiliary equipment technology, specifically a lubricant injection device for machinery. Background Technology

[0002] A lubricant injection device for machinery is a tool specifically designed to precisely inject lubricant into critical parts of mechanical equipment. Lubricant is a lubricating medium used to reduce the frictional resistance of friction pairs and slow down their wear. Lubricant also plays a role in cooling, cleaning, and preventing contamination of friction pairs. To improve lubrication performance, suitable additives can be added to some lubricants. When selecting a lubricant, it is generally necessary to consider many factors such as the motion of the friction pair, the material, the surface roughness, the working environment and working conditions, and the performance of the lubricant. In mechanical equipment, lubricant is mostly distributed to various parts that require lubrication through the lubrication system.

[0003] When applying lubricant to rod-shaped mechanical structures such as worm gears, threaded rods, drive shafts, and hinged shafts, the circular surface of these structures makes it difficult for traditional syringe-type injectors to apply the lubricant evenly and effectively. This is especially true for worm gears and threaded rods, where uneven application is common. Furthermore, when a large amount of lubricant is extruded using traditional syringe-type injectors, it can easily accumulate and drip, requiring subsequent cleaning. To address this issue, we propose a lubricant injection device for machinery. Utility Model Content

[0004] The purpose of this invention is to provide a lubricant injection device for machinery to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lubricant injection device for machinery, comprising an injection cylinder, an injection assembly, and an opening and closing assembly. One end face of the injection cylinder is fixedly connected to and interconnected with the injection assemblies. Two sets of injection assemblies are symmetrically distributed about the central axis of the injection cylinder. A rigid connecting tube in each injection assembly is fixedly connected to one end of a flexible tube. One end of the flexible tube is fixedly connected to and interconnected with one end face of the injection cylinder. The opening and closing assembly is fixedly connected to the outer side of one end of the injection cylinder. One end of a bracket in the opening and closing assembly is slidably connected to the rigid connecting tube. A sleeve is fixedly fitted onto the middle surface of the injection cylinder. A handle is fixedly connected to one end face of the sleeve. A movable plug is fitted onto the inner wall of the injection cylinder. A push handle is fixedly connected to one end face of the movable plug.

[0006] Preferably, the injection assembly includes a rigid connecting tube, a discharge ring, an arc groove, a discharge port, and a conical cover. The rigid connecting tube is fixedly connected to one end face of the injection cylinder, and the discharge ring is fixedly connected to one end of the rigid connecting tube. An arc groove is formed inside the discharge ring, and the arc groove communicates with the inside of the rigid connecting tube. Multiple sets of discharge ports are evenly formed on the inner wall of the discharge ring, and the discharge ports communicate with the arc groove. A conical cover is fixedly connected to one side of the discharge ring.

[0007] Preferably, the diameters of the multiple sets of discharge ports gradually increase from the radius closest to the rigid connecting pipe to the radius furthest from the rigid connecting pipe. The rigid connecting pipes are provided with one set of long and one set of short, and each set of rigid connecting pipes is fixedly connected to a discharge ring at its end and is maintained in a corresponding configuration.

[0008] Preferably, the cone cover is made of silicone, and the diameter of the cone cover on the side closer to the discharge ring is larger than the diameter of the side of the cone cover farther from the discharge ring.

[0009] Preferably, the opening and closing assembly includes a bracket, a slide rod, a limiting piece, a knob, a threaded rod, and a connecting seat. The slide rod is slidably connected to one end of the bracket, the limiting piece is fixedly connected to the top of the slide rod, the bottom of the limiting piece is fixedly connected to the outer surface of the syringe, the connecting seat is fixedly connected to the side surface of the syringe, the threaded rod is rotatably connected to the top of the connecting seat through a bearing inner ring, the knob is fixedly connected to the top of the threaded rod, and the other end of the bracket is fixedly sleeved with a rigid connecting tube short pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] In this invention, the conical cover allows the paste-like lubricant to be evenly applied to the surface of the worm gear, preventing local accumulation and waste. At the same time, the conical cover's constricted opening allows the paste-like lubricant to tightly coat the surface of the object being lubricated, thereby increasing the adhesion of the lubricant after application.

[0012] In this invention, the lubricant is uniformly extruded through the discharge ring, arc groove, and discharge port. At the same time, the conical structure formed by the discharge ring and the conical cover can prevent excessive lubricant from dripping. Excess lubricant can be coated onto the lubricated object by moving the discharge ring and the conical cover, thus avoiding the dripping situation that occurs when excessive lubricant is extruded by traditional needle injection devices, thereby avoiding waste and eliminating the need for cleaning up the dripped lubricant. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0015] Figure 3 This is a top view of the structure of this utility model;

[0016] Figure 4 This utility model Figure 3 Schematic diagram of the cross-sectional planar structure at point A in the middle;

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the discharge ring of this utility model;

[0018] Figure 6 This utility model Figure 3 A cross-sectional three-dimensional structural diagram at point A in the middle.

[0019] In the diagram: 1. Injector barrel; 2. Injection assembly; 3. Tube; 4. Opening and closing assembly; 5. Hoop; 6. Handle; 7. Push handle; 8. Movable plug; 201. Rigid connecting tube; 202. Discharge ring; 203. Arc groove; 204. Discharge port; 205. Conical cover; 401. Support; 402. Slide rod; 403. Limiting plate; 404. Knob; 405. Threaded rod; 406. Connecting seat. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides an embodiment of a mechanical lubricant injection device, comprising an injection cylinder 1, an injection assembly 2, and an opening and closing assembly 4. One end face of the injection cylinder 1 is fixedly connected to the injection assembly 2 and interconnected with it. The injection assembly 2 is configured as two groups, which are symmetrically distributed about the central axis of the injection cylinder 1. A short rigid connecting tube 201 in the injection assembly 2 is fixedly connected to one end of a flexible tube 3. One end of the flexible tube 3 is fixedly connected to one end face of the injection cylinder 1 and connected to the injection cylinder 1. The opening and closing assembly 4 is fixedly connected to the outer side of one end of the injection cylinder 1. One end of the bracket 401 in the opening and closing assembly 4 is slidably connected to the rigid connecting tube 201. A sleeve 5 is fixedly sleeved on the middle surface of the injection cylinder 1. A handle 6 is fixedly connected to one end face of the sleeve 5. A movable plug 8 is sleeved on the inner wall of the injection cylinder 1. A push handle 7 is fixedly connected to one end face of the movable plug 8.

[0025] Furthermore, the injection assembly 2 includes a rigid connecting tube 201, a discharge ring 202, an arc groove 203, a discharge port 204, and a conical cover 205. The rigid connecting tube 201 is fixedly connected to one end face of the injection cylinder 1. The discharge ring 202 is fixedly connected to one end of the rigid connecting tube 201. An arc groove 203 is opened inside the discharge ring 202, and the arc groove 203 communicates with the inside of the rigid connecting tube 201. Multiple sets of discharge ports 204 are evenly opened on the inner wall of the discharge ring 202, and the discharge ports 204 communicate with the arc groove 203. A conical cover 205 is fixedly connected to one side of the discharge ring 202. The constricted opening of the conical cover 205 allows the accumulated lubricant to be pushed into the spiral groove on the surface of the worm, thereby allowing the worm to be fully coated with lubricant.

[0026] Furthermore, the diameters of the multiple sets of discharge ports 204 gradually increase from the radius closest to the rigid connecting pipe 201 to the radius furthest from the rigid connecting pipe 201. The rigid connecting pipe 201 is provided with one set of long and one set of short, and each set of rigid connecting pipes 201 is fixedly connected to the end of the discharge ring 202 and maintains the corresponding setting, so that they can fit together to form a complete ring structure.

[0027] Furthermore, the cone cover 205 is made of silicone, and the diameter of the cone cover 205 on the side closer to the discharge ring 202 is larger than the diameter of the cone cover 205 on the side farther away from the discharge ring 202.

[0028] Furthermore, the opening and closing assembly 4 includes a bracket 401, a slide rod 402, a limiting piece 403, a knob 404, a threaded rod 405, and a connecting seat 406. The slide rod 402 is slidably connected to one end of the bracket 401. The limiting piece 403 is fixedly connected to the top of the slide rod 402. The bottom of the limiting piece 403 is fixedly connected to the outer surface of the syringe 1. The connecting seat 406 is fixedly connected to the side surface of the syringe 1. The threaded rod 405 is rotatably connected to the top of the connecting seat 406 through the inner ring of the bearing. The knob 404 is fixedly connected to the top of the threaded rod 405. The other end of the bracket 401 is fixedly sleeved with the short tube of the rigid connecting tube 201.

[0029] The working process is as follows: During use, the worm gear is placed on the clamp and its two ends are fixed. Then, the injection device is held and the discharge rings 202 are placed on both sides of the worm gear. Next, the knob 404 is rotated, causing the injection assembly 2, which is fixed to the bracket 401, to move closer to the other injection assembly 2 until the two discharge rings 202 fit together to form a complete annular structure. At this time, the operator pushes the handle 7, causing the movable plug 8 to squeeze the lubricant in the injection cylinder 1. Simultaneously, the lubricant moves along the longitudinal direction of the worm gear, allowing it to be discharged through the discharge port 204 and accumulate in the annular groove formed between the inner wall of the discharge ring 202 and the worm gear. As the operator moves, the accumulated lubricant is constrained by the conical cover 205, thus pushing the lubricant into the spiral groove on the surface of the worm gear, allowing the worm gear to fully... The lubricant is applied evenly to the surface of the worm gear through the conical cover 205, avoiding local accumulation and waste. Simultaneously, the conical cover 205's constricted opening allows the lubricant to tightly coat the surface of the object being lubricated, increasing its adhesion. The discharge ring 202, arc groove 203, and discharge port 204 ensure even extrusion of the lubricant. The conical structure formed by the discharge ring 202 and the conical cover 205 prevents excessive lubricant from dripping. Excess lubricant can be spread onto the object by moving the discharge ring 202 and the conical cover 205, avoiding the dripping that occurs with traditional needle injection devices and thus preventing waste and the need for cleaning up spilled lubricant.

[0030] When in use, place the worm gear on the clamp and fix its two ends. Then, hold the injection device and place the discharge ring 202 on both sides of the worm gear. Then, turn the knob 404 to move the injection component 2 fixed to the bracket 401 closer to the other injection component 2 until the two discharge rings 202 fit together to form a complete ring structure. At this time, push the push handle 7 to make the movable plug 8 squeeze the lubricant in the injection cylinder 1. While the person is pushing, it moves along the longitudinal direction of the worm gear, so that the lubricant is discharged through the discharge port 204 and accumulates in the annular groove formed between the inner wall of the discharge ring 202 and the worm gear. As the person moves, the accumulated lubricant is constrained by the conical cover 205, thereby pushing the lubricant into the spiral groove on the surface of the worm gear, so that the worm gear is fully coated with lubricant.

[0031] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lubricant injection device for machinery, comprising an injection cylinder (1), an injection assembly (2), and an opening / closing assembly (4), characterized in that, The injection assembly (2) is fixedly connected to one side end face of the injection cylinder (1) and is interconnected with each other. The injection assembly (2) is set in two groups, and the two groups of injection assemblies (2) are symmetrically distributed about the central axis of the injection cylinder (1). The short tube of the rigid connecting tube (201) in the injection assembly (2) is fixedly connected to one end of the flexible tube (3). One end of the flexible tube (3) is fixedly connected to one side end face of the injection cylinder (1) and is connected to the injection cylinder (1). The opening and closing assembly (4) is fixedly connected to the outside of one end of the injection cylinder (1). One end of the bracket (401) in the opening and closing assembly (4) is slidably connected to the rigid connecting tube (201). The sleeve (5) is fixedly sleeved on the middle surface of the injection cylinder (1). The handle (6) is fixedly connected to one side end face of the sleeve (5). The movable plug (8) is sleeved on the inner wall of the injection cylinder (1). The push handle (7) is fixedly connected to one side end face of the movable plug (8).

2. The lubricant injection device for machinery according to claim 1, characterized in that: The injection assembly (2) includes a rigid connecting tube (201), a discharge ring (202), an arc groove (203), a discharge port (204), and a cone cover (205). The rigid connecting tube (201) is fixedly connected to one end face of the injection cylinder (1). The discharge ring (202) is fixedly connected to one end of the rigid connecting tube (201). An arc groove (203) is opened inside the discharge ring (202). The arc groove (203) communicates with the inside of the rigid connecting tube (201). Multiple sets of discharge ports (204) are evenly opened on the inner wall of the discharge ring (202). The discharge ports (204) communicate with the arc groove (203). A cone cover (205) is fixedly connected to one side of the discharge ring (202).

3. The lubricant injection device for machinery according to claim 2, characterized in that: The diameter of the multiple sets of discharge ports (204) increases gradually from the radius of the rigid connecting pipe (201) to the radius of the rigid connecting pipe (201) away from it. The rigid connecting pipe (201) is provided with one set of long and one set of short, and each set of rigid connecting pipes (201) is fixedly connected to the end of the discharge ring (202) and maintained in a corresponding configuration.

4. The lubricant injection device for machinery according to claim 2, characterized in that: The cone cover (205) is made of silicone. The diameter of the cone cover (205) on the side closer to the discharge ring (202) is larger than the diameter of the side of the cone cover (205) away from the discharge ring (202).

5. The lubricant injection device for machinery according to claim 1, characterized in that: The opening and closing assembly (4) includes a bracket (401), a slide rod (402), a limiting piece (403), a knob (404), a threaded rod (405), and a connecting seat (406). The slide rod (402) is slidably connected to one end of the bracket (401). The limiting piece (403) is fixedly connected to the top of the slide rod (402). The bottom of the limiting piece (403) is fixedly connected to the outer surface of the syringe (1). The connecting seat (406) is fixedly connected to the side surface of the syringe (1). The threaded rod (405) is rotatably connected to the top of the connecting seat (406) through the inner ring of the bearing. The knob (404) is fixedly connected to the top of the threaded rod (405). The other end of the bracket (401) is fixedly sleeved with the short tube of the rigid connecting pipe (201).

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