Lubricant distributor

Abstract

The utility model discloses a lubricant distributor, and belongs to the technical field of automatic lubricating equipment. Comprising a motor and a screw used for extruding a lubricant, the tail end of a driving shaft of the motor is sleeved with a driving gear, one end of the screw is sleeved with a driven gear, the driving gear and the driven gear are arranged in a matched mode so that the driving shaft of the motor can drive the screw to rotate, and the driving shaft of the motor and the screw are arranged in an offset mode. The driving gear and the driven gear are both external gears, and the gear ratio of the driving gear to the driven gear is configured to increase the output torque of the motor by 2-5 times. The motor drives the driving gear to rotate, and the driving gear is meshed with the driven gear to drive the screw rod to rotate, so that the torque of the screw rod can be effectively improved, the pressure of the automatic oil injector for conveying a lubricant is higher, and the lubricant can be smoothly conveyed farther.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic lubrication equipment, in particular to a lubricant distributor. Background Art

[0002] Automatic lubricators, oil injection devices and / or oil injection systems are generally used to ensure smooth and reliable operation of equipment, engines, devices and / or industrial systems by lubricating one or more objects, parts, portions and / or components thereof.

[0003] Generally, an automatic lubricator can automatically apply lubricant to and / or into an object to be lubricated during one or more lubrication actions. Lubrication is provided at a specific lubrication time, at a specific lubrication frequency and / or at a specific lubrication time interval, which is more convenient and faster than traditional manual lubrication. Selecting the appropriate lubricant and / or lubrication time during use can prevent objects, devices, engines, devices and / or industrial systems from malfunctioning. However, the appropriate lubricant dosage can ensure the lubrication effect. Excessive lubricant can cause product burns. By using automatic oiling equipment, the lubricant dosage can be reasonably controlled to ensure the effect.

[0004] The existing automatic oiler directly drives the screw rod through the motor, and the driving force of the motor is limited, which makes it difficult to ensure the smooth extrusion of the lubricant. After searching, the Chinese invention patent: A lubricant dispenser (publication number CN103998849A, publication date 2014.08.20) was found. The application supports the adapter by setting a rolling bearing and a restraining device, thereby almost eliminating the friction source, reducing motor failures, and improving the reliability of the lubricant dispenser. However, the disadvantage of this application is that the drive motor directly drives the screw rod, and the low power of the drive motor also makes it difficult to ensure the smooth extrusion of the lubricant. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] The utility model aims to solve the problem of low torque caused by direct motor-driven screw rod in existing automatic grease injection equipment.

[0007] 2. Technical solution

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0009] The utility model discloses a lubricant dispenser, comprising a motor, a screw and a piston for extruding lubricant, wherein the piston is sleeved on the screw and is rotated by the screw and driven to move along the length direction of the screw, a driving gear is sleeved on the end of the driving shaft of the motor, and a driven gear is sleeved on one end of the screw, the driving gear and the driven gear are matched to enable the motor driving shaft to drive the screw to rotate, the driving shaft of the motor is offset from the screw, and the gear ratio of the driving gear and the driven gear is configured to increase the output torque of the motor.

[0010] Preferably, the driving gear and the driven gear are both external gears, and the gear ratio of the driving gear to the driven gear is configured to increase the output torque of the motor by 2-5 times.

[0011] Preferably, the driving gear and the driven gear are a combination of an external gear and an internal gear, and the gear ratio of the driving gear and the driven gear is configured to increase the output torque of the motor by 2-5 times.

[0012] Preferably, the driving gear is meshed with the driven gear through a transmission gear, and the gear ratios of the driving gear, the transmission gear and the driven gear are configured to increase the output torque of the motor by 2-5 times, and the number of the transmission gear is at least one.

[0013] Preferably, it also includes a motor housing for accommodating the motor and a accommodating cavity for accommodating the lubricant, and the motor housing and the accommodating cavity are sealed and connected via a locking ring.

[0014] Preferably, a battery pack and a battery holder main body and a battery holder upper cover for fixing the battery pack are also provided in the motor housing. The battery pack is provided with battery poles for outputting electricity. The battery poles are electrically connected to the motor through a control circuit board. The control circuit board is used to control the start and stop of the motor.

[0015] Preferably, the motor housing further comprises a transparent upper cover and a lower end cover, the lower end cover is arranged on a side close to the accommodating cavity and supports and limits the driving gear and the driven gear, and a thrust bearing and a self-lubricating copper sleeve are provided at one end of the rotating shaft of the driven gear away from the screw.

[0016] Preferably, a micro switch for detecting the number of rotations of the driven gear is provided on one side of the driven gear, and a ratchet is provided between the micro switch and the driven gear, and the ratchet is used to trigger the micro switch.

[0017] Preferably, the size of the piston is matched to the axial cross-sectional size of the accommodating chamber so that the piston can move freely.

[0018] Preferably, the diameter of one end of the accommodating cavity away from the motor is gradually reduced and a bracket is sleeved on the outer side.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0021] A lubricant dispenser of the utility model comprises a motor and a screw for extruding lubricant, wherein the end of the drive shaft of the motor is sleeved with a driving gear. A driven gear is sleeved at one end of the screw, and the driving gear and the driven gear are arranged in cooperation so that the motor drive shaft drives the screw to rotate, and the driving shaft of the motor is offset from the screw. The driving gear and the driven gear are both external gears, and the gear ratio of the driving gear and the driven gear is configured to increase the output torque of the motor by 2-5 times. By driving the driving gear to rotate through the motor, the driving gear and the driven gear mesh to drive the screw to rotate, which can effectively increase the torque of the screw, thereby making the lubricant dispenser convey the lubricant with greater pressure, so that the lubricant can be conveyed smoothly and farther. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural explosion diagram of a lubricant distributor of the utility model;

[0023] Figure 2 This is a structural cross-sectional view of a lubricant distributor of the utility model;

[0024] Figure 3 This is a front view of a lubricant distributor of the utility model.

[0025] Explanation of the symbols in the schematic diagram:

[0026] 1. Motor housing; 2. Transparent upper cover; 3. Lower end cover; 4. Buckle cover; 5. Knob; 6. Battery holder; 7. Ratchet; 11. Piston; 12. Accommodating chamber; 13. Bracket; 14. Battery pack; 15. Locking ring; 16. Driven gear; 17. Driving gear; 21. Screw; 31. Battery pole piece; 32. Control circuit board; 33. Micro switch; 34. Motor; 41. Thrust bearing; 42. Self-lubricating copper sleeve. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0030] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0031] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] Example 1

[0034] See attached Figure 1-3A lubricant dispenser of this embodiment includes a motor 34, a screw 21 and a piston 11 for extruding lubricant, wherein the piston 11 is sleeved on the screw 21 and is rotated by the screw 21 and driven to move along the length direction of the screw 21, a driving gear 17 is sleeved on the end of the driving shaft of the motor 34, and a driven gear 16 is sleeved on one end of the screw 21, and the driving gear 17 and the driven gear 16 are matched to enable the driving shaft of the motor 34 to drive the screw 21 to rotate, the driving shaft of the motor 34 is offset from the screw 21, and the gear ratio of the driving gear 17 to the driven gear 16 is configured to increase the output torque of the motor 34. Both the driving gear 17 and the driven gear 16 are external gears, and the gear ratio of the driving gear 17 to the driven gear 16 is configured to increase the output torque of the motor 34 by 2-5 times. The automatic oiler of this embodiment drives the driving gear 17 to rotate through the motor 34, and the driving gear 17 engages with the driven gear 16 to drive the screw 21 to rotate, which can effectively increase the torque of the screw 21, so that the pressure of the lubricant delivered by the lubricant dispenser is greater, so that the lubricant can be delivered smoothly and farther.

[0035] It also includes a motor housing 1 for accommodating the motor 34 and a accommodating chamber 12 for accommodating lubricant. The motor housing 1 and the accommodating chamber 12 are sealed and connected via a locking ring 15, and the accommodating chamber 12 and the motor housing 1 can be easily separated via the locking ring 15 to facilitate assembly and disassembly.

[0036] The motor housing 1 is also provided with a battery pack 14 and a battery support body and a battery support upper cover for fixing the battery pack 14. The battery pack 14 is provided with a battery pole piece 31 for outputting electricity. The battery pole piece 31 is electrically connected to the motor 34 through a control circuit board 32. The control circuit board 32 is a PCBA. The control circuit board 32 is used to control the start and stop of the motor 34. It also includes a battery holder 6 arranged on the side of the battery support body away from the battery support upper cover. The battery pole piece 31 is fixed on the battery holder 6. The motor housing 1 is also provided with a buckle cover 4 for fixing the control circuit board 32. The bottom end of the motor 34 connected to the motor housing 1 is provided with a knob 5, which is used to adjust the frequency of extruding the lubricant.

[0037] The motor housing 1 also includes a transparent upper cover 2 and a lower end cover 3. The transparent upper cover 2 is arranged at the outermost side of the motor housing 1 for observing the working status of the components in the motor housing 1. The lower end cover 3 is arranged on a side close to the accommodating cavity 12 and supports and limits the driving gear 17 and the driven gear 16. A thrust bearing 41 and a self-lubricating copper sleeve 42 are provided at one end of the rotating shaft of the driven gear 16 away from the screw 21. The thrust bearing 41 and the self-lubricating copper sleeve 42 cooperate to allow the driven gear 16 to rotate freely.

[0038] A micro switch 33 for detecting the number of rotations of the driven gear 16 is provided on one side of the driven gear 16, and a ratchet 7 is provided between the micro switch 33 and the driven gear 16, and the ratchet 7 is used to trigger the micro switch 33. When the driven gear 16 is driven to rotate by the motor 34 and the driving gear 17, the driven gear 16 will contact the ratchet 7 as it rotates, so that the ratchet 7 triggers the micro switch 33. The number of rotations and angles of the driven gear 16 can be known by the number of times the micro switch 33 is triggered, and the number of rotations and angles of the driving gear 17 and the driving shaft of the motor 34 can be obtained by converting the gear ratio.

[0039] The accommodating chamber 12 is provided with a piston 11, which is sleeved on the screw 21 and is rotated by the screw 21 and driven to move along the length direction of the screw 21. The size of the piston 11 is adapted to the axial cross-sectional size of the accommodating chamber 12 so that the piston 11 can move freely. The diameter of the end of the accommodating chamber 12 away from the motor 34 is gradually reduced and a bracket 13 is sleeved on the outside.

[0040] Example 2

[0041] The basic structure of the automatic oiler of this embodiment is the same as that of the embodiment 1, except that:

[0042] The driving gear 17 and the driven gear 16 are a combination of an external gear and an internal gear, and the gear ratio of the driving gear 17 and the driven gear 16 is configured to increase the output torque of the motor 34 by 2-5 times.

[0043] Example 3

[0044] The basic structure of the automatic oiler of this embodiment is the same as that of the embodiment 1, except that:

[0045] The driving gear 17 is meshed with the driven gear 16 via a transmission gear. The gear ratios of the driving gear 17, the transmission gear and the driven gear 16 are configured to increase the output torque of the motor 34 by 2-5 times. The number of the transmission gear is at least one.

[0046] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A lubricant dispenser, characterized in that: The invention comprises a motor (34), a screw (21) and a piston (11) for extruding a lubricant, wherein the piston (11) is sleeved on the screw (21) and is rotated by the screw (21) and driven to move along the length direction of the screw (21), a driving gear (17) is sleeved on the end of the driving shaft of the motor (34), and a driven gear (16) is sleeved on one end of the screw (21), the driving gear (17) and the driven gear (16) are matched to enable the driving shaft of the motor (34) to drive the screw (21) to rotate, the driving shaft of the motor (34) and the screw (21) are offset, and the gear ratio of the driving gear (17) and the driven gear (16) is configured to increase the output torque of the motor (34).

2. A lubricant dispenser according to claim 1, characterized in that: The driving gear (17) and the driven gear (16) are both external gears, and the gear ratio of the driving gear (17) and the driven gear (16) is configured to increase the output torque of the motor (34) by 2-5 times.

3. A lubricant dispenser according to claim 1, characterized in that: The driving gear (17) and the driven gear (16) are a combination of an external gear and an internal gear, and the gear ratio of the driving gear (17) and the driven gear (16) is configured to increase the output torque of the motor (34) by 2-5 times.

4. A lubricant dispenser according to claim 1, characterized in that: The driving gear (17) is meshed with the driven gear (16) via a transmission gear, and the gear ratios of the driving gear (17), the transmission gear and the driven gear (16) are configured to increase the output torque of the motor (34) by 2-5 times, and the number of the transmission gear is at least one.

5. A lubricant dispenser according to any one of claims 1 to 4, characterized in that: It also comprises a motor housing (1) for accommodating the motor (34) and a receiving chamber (12) for accommodating lubricant, wherein the motor housing (1) and the receiving chamber (12) are sealedly connected via a locking ring (15).

6. A lubricant dispenser according to claim 5, characterized in that: A battery pack (14) and a battery support body and a battery support upper cover for fixing the battery pack (14) are also provided in the motor housing (1); the battery pack (14) is provided with a battery electrode (31) for outputting electric power; the battery electrode (31) is electrically connected to the motor (34) via a control circuit board (32); and the control circuit board (32) is used to control the start and stop of the motor (34).

7. A lubricant dispenser according to claim 6, characterized in that: The motor housing (1) further comprises a transparent upper cover (2) and a lower end cover (3); the lower end cover (3) is arranged on a side close to the accommodating chamber (12) and supports and limits the driving gear (17) and the driven gear (16); a thrust bearing (41) and a self-lubricating copper sleeve (42) are provided at one end of the rotating shaft of the driven gear (16) away from the screw rod (21).

8. A lubricant dispenser according to claim 7, characterized in that: A micro switch (33) for detecting the number of rotations of the driven gear (16) is provided on one side of the driven gear (16), a ratchet (7) is provided between the micro switch (33) and the driven gear (16), and the ratchet (7) is used to trigger the micro switch (33).

9. A lubricant dispenser according to claim 5, characterized in that: The size of the piston (11) is matched to the axial cross-sectional size of the accommodating chamber (12) so that the piston (11) can move freely.

10. A lubricant dispenser according to claim 9, characterized in that: The diameter of one end of the accommodating cavity (12) away from the motor (34) gradually decreases, and a bracket (13) is sleeved on the outer side.

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