Gear box

Abstract

The utility model provides a gear box which comprises a box body, the box body is provided with any one of a rotary buckle and a rotary groove, and the box body is provided with a containing space; the lubricating device is provided with the other one of the box body and the box body, and the lubricating device is rotationally mounted to the box body in the first direction and used for conveying a lubricating agent to the containing space; the control device is arranged on the side, away from the box body, of the lubricating device, is elastically connected with the lubricating device and is used for controlling the dosage of the lubricating agent conveyed into the containing space; and the lubricating device rotates relative to the box body in a second direction, so that the rotary buckle is separated from the rotary groove, the lubricating device is separated from the box body, and the second direction is opposite to the first direction. The technical problems that in the prior art, when a lubricating agent is added into a gear box, a box body of the gear box needs to be detached firstly, time and labor are wasted, and efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to a gear box. Background Art

[0002] With the continuous advancement of science and technology, power tools have gradually become an indispensable and important part of modern industrial production and daily life. As the core component of power tools, gearboxes have functions including acceleration and deceleration, changing transmission direction, changing torque, clutch function and power distribution. Gearboxes usually use a box body to support and limit the internal gears; in the prior art, the maintenance of gearboxes usually includes regular addition of lubricants to reduce friction and wear between gears.

[0003] However, there is at least one of the following problems in the related art: in the prior art, when adding lubricant to the gear box, the gear box body needs to be disassembled first, which is time-consuming, labor-intensive and inefficient. Utility Model Content

[0004] The technical problem solved by the utility model is that in the prior art, when adding lubricant into the gear box, the housing needs to be disassembled first, which is time-consuming, labor-intensive and inefficient.

[0005] In order to solve the above problems, the utility model provides a gear box, comprising: a box body, the box body is provided with either a rotary buckle or a rotary groove, and the box body is provided with a accommodating space; a lubricating device, the lubricating device is provided with the other of the two, and the lubricating device is rotatably installed to the box body in a first direction, and the lubricating device is used to transport lubricant to the accommodating space; a control device, the control device is arranged on a side of the lubricating device away from the box body, and is elastically connected to the lubricating device, and is used to control the dosage of the lubricant transported to the accommodating space; wherein the lubricating device rotates in a second direction relative to the box body so that the rotary buckle is disengaged from the rotary groove, thereby realizing the separation of the lubricating device and the box body, and the second direction is opposite to the first direction.

[0006] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: by providing a lubrication device, lubricant can be directly added to the inside of the box through the lubrication device, eliminating the step of disassembling the shell, saving time and effort; by providing corresponding rotary grooves or rotary buckles on the box and the lubrication device, the lubrication device can be quickly separated and connected from the box, facilitating the replacement and maintenance of the lubrication device.

[0007] In one embodiment of the utility model, a positioning protrusion is provided on the groove wall of the rotary groove, which is used to limit the rotary buckle from falling out of the rotary groove.

[0008] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the positioning protrusion limits the turn buckle from falling out of the turn groove, which can play a role in stably positioning the lubrication device, reducing the risk of the turn buckle falling out of the turn groove due to vibration during the operation of the gear box, thereby ensuring that the connection between the turn buckle and the turn groove is stable and reliable; in addition, the cooperation between the positioning protrusion and the turn buckle and the different resistances generated at different positions during the installation process can serve to remind the user whether the cooperation is in place.

[0009] In one example of the utility model, the box body is provided with a mounting hole, which is connected to the accommodating space; the lubricating device includes a liquid adding head, at least part of the structure of the liquid adding head is passed through the mounting hole, and the liquid adding head is provided with a first accommodating cavity and an infusion hole which are connected to each other; wherein the lubricant in the first accommodating cavity is transported to the accommodating space through the infusion hole.

[0010] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by setting a mounting hole, part of the structure of the liquid filling head is passed through it and connected with the accommodating space, so that the lubricant added to the first accommodating chamber can be transported to the internal accommodating space of the gear box through the infusion hole, thereby providing lubrication for the gear box conveniently and quickly, effectively improving the maintenance efficiency and the working stability of the gear box.

[0011] In an example of the present invention, the gear box further comprises a main drive shaft, which is installed in the accommodation space and is coaxial with the installation hole.

[0012] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the coaxial arrangement of the main drive shaft and the mounting hole, the lubricant entering the accommodating space through the mounting hole can fall onto the main drive shaft, and through the drive of the main drive shaft, the lubricant is gradually diffused to other internal parts.

[0013] In one example of the utility model, the lubrication device also includes a accommodating shell, which is connected to the end of the liquid adding head away from the box body, and the accommodating shell is provided with a second accommodating chamber and a first opening which are interconnected, and the first opening is used to connect the first accommodating chamber and the second accommodating chamber; the control device includes a stopper, which is arranged in the first accommodating chamber; a spring is also provided in the first accommodating chamber, one end of the spring abuts the liquid adding head, and the other end abuts the stopper; wherein the spring applies an elastic force to the stopper to abut the first opening, so as to maintain a closed state between the first accommodating chamber and the second accommodating chamber.

[0014] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the closed state of the two chambers is maintained by the action of the stopper and the spring, and the spring continuously applies an elastic force to the stopper to abut against the first opening, ensuring that when no lubricant needs to be added, the first accommodating chamber and the second accommodating chamber remain in a closed state, thereby avoiding waste and leakage of lubricant.

[0015] In an example of the utility model, a clamping piece is provided on a side of the liquid adding head away from the box body; a clamping hole is provided at a position of the stopper corresponding to the clamping piece, and the clamping piece is arranged in the clamping hole.

[0016] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the setting of the clamps and the clamping holes, the stopper and the liquid filling head can be accurately positioned and firmly matched, which improves the convenience and sealing of assembly, ensures that the lubricant can be accurately added, and enhances the overall performance of the gearbox and the reliability of use.

[0017] In an example of the utility model, there are multiple clamping members, which are arranged in a ring shape; the spring is sleeved on the outside of the ring structure formed by the multiple clamping members.

[0018] Compared with the prior art, the technical effects achieved by adopting this technical solution are: multiple clamps are set, and the multiple clamps are set in a ring shape, which further improves the stability of the cooperation between the stopper and the liquid filling head; the spring is arranged on the outside of the annular structure formed by the multiple clamps to prevent the spring from moving and dislocating due to vibration during use.

[0019] In one example of the utility model, the accommodating shell is also provided with a second opening, and the second opening is arranged at one end away from the liquid adding head; the control device also includes a driving part, the driving part is arranged in the second accommodating chamber, and is connected to the stop part; wherein, the adjusting driving part drives the stop part to move in a direction away from the first opening, so that the first accommodating chamber and the second accommodating chamber are changed from a closed state to a connected state.

[0020] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the setting of the driving part, it is possible to adjust the driving part to drive the stop part to move in a direction away from the first opening, so that the originally closed first accommodating chamber and the second accommodating chamber can be connected, thereby being able to more flexibly control the flow of lubricant and improving the lubrication efficiency and control accuracy of the lubrication device.

[0021] In an example of the present invention, an end of the driving portion away from the stop portion is provided with anti-slip textures.

[0022] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by providing anti-slip patterns, the grip stability and operating convenience of the operator when adjusting the drive unit are improved, and the risk of slipping during operation is reduced.

[0023] In an example of the present utility model, the lubrication device further comprises a sealing gasket, which is arranged at the second opening.

[0024] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the setting of the sealing gasket, the sealing performance of the gear box is improved, the leakage of lubricant and the invasion of external pollutants are prevented, and the service life is extended.

[0025] After adopting the technical solution of the utility model, the following technical effects can be achieved:

[0026] (1) By providing a lubricating device, lubricant can be added directly to the inside of the box through the lubricating device, eliminating the step of disassembling the shell, saving time and effort; by providing corresponding rotary grooves or rotary buckles on the box and the lubricating device, the lubricating device and the box can be quickly separated and connected, which is convenient for replacement and maintenance of the lubricating device;

[0027] (2) The positioning protrusion limits the buckle from coming out of the groove, which can play a role in stabilizing the positioning of the lubricating device, reducing the risk of the buckle coming out of the groove due to vibration during the operation of the gearbox, thereby causing the lubricating device to fall off, and ensuring that the connection between the buckle and the groove is stable and reliable; in addition, the cooperation between the positioning protrusion and the buckle and the different resistances generated at different positions during the installation process can serve to remind the user whether the fit is in place;

[0028] (3) The two chambers are kept in a closed state by the action of the stopper and the spring. The spring continuously applies an elastic force to the stopper to abut against the first opening, thereby ensuring that when no lubricant needs to be added, the first accommodating chamber and the second accommodating chamber remain in a closed state, thereby avoiding waste and leakage of lubricant.

[0029] (4) By setting the driving part, it is possible to adjust the driving part to drive the stop part to move in a direction away from the first opening, so that the originally closed first accommodating chamber and the second accommodating chamber can be connected, so that the flow of lubricant can be controlled more flexibly, thereby improving the lubrication efficiency and control accuracy of the lubrication device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings to be used in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram of the structure of a gear box provided in an embodiment of the utility model;

[0032] Figure 2 for Figure 1 An exploded structural diagram of the gearbox shown;

[0033] Figure 3 for Figure 2 The cross-sectional view of the gearbox shown along the AA direction;

[0034] Figure 4 for Figure 3 A partial enlarged view of the gearbox B is shown;

[0035] Figure 5 for Figure 4 A partial enlarged view of the gearbox C is shown;

[0036] Figure 6 for Figure 1 The schematic diagram of the structure of the lubrication device and the control device in the gear box shown;

[0037] Figure 7 for Figure 6 A cross-sectional view of the lubrication device and the control device shown along the DD direction;

[0038] Figure 8 for Figure 6 A schematic diagram of the structure of the control device shown;

[0039] Fig. 9 for Figure 6 A schematic diagram of the exploded structure of the liquid adding head and the containing shell in the lubricating device shown.

[0040] Description of reference numerals:

[0041] 100, gearbox; 10, housing; 11, groove; 111, positioning protrusion; 12, mounting hole; 20, lubrication device; 21, turn button; 22, liquid adding head; 221, first accommodating chamber; 222, infusion hole; 223, spring; 224, clamp; 23, accommodating shell; 231, second accommodating chamber; 232, first opening; 233, second opening; 24, sealing gasket; 30, control device; 31, stopper; 311, clamping hole; 32, driving unit; 40, main driving shaft. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0043] See also Figure 1 , which is a schematic diagram of the structure of a gear box provided by an embodiment of the utility model, combined with Figures 2 to 9Specifically, the gear box 100 includes: a box body 10, a lubricating device 20 and a control device 30, the box body 10 is provided with either a knob 21 or a rotary groove 11, and the box body 10 is provided with a storage space; the lubricating device 20 is provided with the other of the two, and the lubricating device 20 is rotatably mounted to the box body 10 in a first direction, and the lubricating device 20 is used to deliver lubricant to the storage space; the control device 30 is arranged on a side of the lubricating device 20 away from the box body 10, and is elastically connected to the lubricating device 20, and is used to control the dosage of the lubricant delivered to the storage space; wherein, the lubricating device 20 rotates relative to the box body 10 in a second direction so that the knob 21 is disengaged from the rotary groove 11, thereby realizing the separation of the lubricating device 20 from the box body 10, and the second direction is opposite to the first direction; the lubricating device 20 is used to add lubricant to the inside of the box body 10, and the detachable lubricating device 20 is convenient for maintenance and adding lubricant to the inside of the lubricating device 20.

[0044] Specifically, in this embodiment, the box body 10 is provided with a rotary groove 11 , and the lubricating device 20 is provided with a rotary buckle 21 .

[0045] Preferably, a positioning protrusion 111 is provided on the groove wall of the rotation groove 11 to limit the rotation buckle 21 from falling out of the rotation groove 11 .

[0046] Preferably, the box body 10 is provided with a mounting hole 12, which is connected to the accommodating space; the lubricating device 20 includes a liquid adding head 22, at least part of the structure of the liquid adding head 22 is passed through the mounting hole 12, and the liquid adding head 22 is provided with a first accommodating cavity 221 and an infusion hole 222 which are connected to each other; wherein the lubricant in the first accommodating cavity 221 is transported to the accommodating space through the infusion hole 222.

[0047] Preferably, the gearbox 100 also includes a main drive shaft 40, which is installed in the accommodating space, and the main drive shaft 40 is coaxial with the mounting hole 12; the coaxial arrangement of the main drive shaft 40 and the mounting hole 12 allows the lubricant that enters the accommodating space through the mounting hole 12 to fall onto the main drive shaft 40, and through the drive of the main drive shaft 40, the lubricant is gradually diffused to other internal parts.

[0048] Preferably, the lubrication device 20 also includes a accommodating shell 23, which is connected to the end of the liquid adding head 22 away from the box body 10, and the accommodating shell 23 is provided with a second accommodating chamber 231 and a first opening 232 that are interconnected, and the first opening 232 is used to connect the first accommodating chamber 221 and the second accommodating chamber 231; the control device 30 includes a stopper 31, and the stopper 31 is arranged in the first accommodating chamber 221; a spring 223 is also provided in the first accommodating chamber 221, one end of the spring 223 abuts the liquid adding head 22, and the other end abuts the stopper 31; wherein the spring 223 applies an elastic force to the stopper 31 abutting against the first opening 232 to maintain the first accommodating chamber 221 and the second accommodating chamber 231 in a closed state; ensuring that when there is no need to add lubricant, the first accommodating chamber 221 and the second accommodating chamber 231 remain in a closed state to avoid waste and leakage of lubricant.

[0049] Furthermore, the accommodating shell 23 is threadedly connected to the liquid adding head 22 .

[0050] Furthermore, the stopping portion 31 is in a round cake shape, and the diameter of the stopping portion 31 is greater than the diameter of the first opening 232 .

[0051] Preferably, a clamping member 224 is provided on one side of the liquid adding head 22 forming the first accommodating chamber 221 ; a clamping hole 311 is provided at a position of the stopper 31 corresponding to the clamping member 224 , and the clamping member 224 is disposed in the clamping hole 311 .

[0052] Preferably, there are multiple clamping members 224 , and the multiple clamping members 224 are arranged in a ring shape; the spring 223 is sleeved on the outside of the ring structure formed by the multiple clamping members 224 .

[0053] Furthermore, the plurality of clamps 224 are arranged at intervals, and there is a flow gap between any two adjacent ones of the plurality of clamps for the lubricant to flow.

[0054] Furthermore, the plurality of clamping members 224 are in the shape of long strips, so that the stopper 31 can reciprocate along the length direction of the clamping members 224 .

[0055] Preferably, the accommodating shell 23 is also provided with a second opening 233, and the second opening 233 is arranged at one end away from the liquid filling head 22; the control device 30 also includes a driving part 32, and the driving part 32 is penetrated through the second accommodating cavity 231 and is connected to the stop part 31; wherein, the adjusting driving part 32 drives the stop part 31 to move in a direction away from the first opening 232, so that the first accommodating cavity 221 and the second accommodating cavity 231 are changed from a closed state to a connected state.

[0056] Furthermore, the driving portion 32 is threadedly connected to the stopping portion 31 .

[0057] Furthermore, the driving part 32 includes a pressing block and a connecting rod; the connecting rod is passed through the second accommodating cavity 231, and one end is connected to the stopper 31, and the other end is connected to the pressing block; the diameter of the connecting rod is equal to or slightly smaller than the caliber of the second opening 233, and the caliber of the first opening 232 is larger than the caliber of the first opening 232.

[0058] Specifically, in combination with the actual installation situation, after the spring 223 is sleeved on the outside of the annular structure formed by multiple clamps 224, the stopper 31 is engaged with the liquid adding head 22 through the clamp 224 and the clamp hole 311, and then the accommodating shell 23 and the liquid adding head 22 are screwed together, the driving part 32 is passed through the first opening 232 and the second opening 233 and then screwed to the stopper 31, which is convenient for assembly; when it is necessary to add lubricant to the second accommodating chamber 231, it is only necessary to rotate the driving part 32 and the stopper 31 to separate them, and take the driving part 32 out from the second opening 233, and then the lubricant can be added from the second opening 233, and the lubricant is stored in the second accommodating chamber 231.

[0059] Preferably, an end of the driving portion 32 away from the stop portion 31 is provided with anti-slip textures, which improves the stability of holding and the convenience of operation.

[0060] Preferably, the lubricating device 20 further comprises a sealing gasket 24, which is disposed at the second opening 233 to prevent leakage of lubricant and intrusion of external pollutants; the sealing gasket 24 is disposed between the pressing block and the accommodating shell 23 to play a buffering role.

[0061] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A gear box, characterized in that: include: A box body (10), wherein the box body (10) is provided with either a rotary buckle (21) or a rotary groove (11), and the box body (10) is provided with a receiving space; a lubricating device (20), the lubricating device (20) being provided with the other of the two, and the lubricating device (20) being rotatably mounted to the box (10) in a first direction, and the lubricating device (20) being used to transport lubricant to the accommodating space; a control device (30), the control device (30) being arranged on a side of the lubricating device (20) away from the box body (10) and being elastically connected to the lubricating device (20) and being used for controlling the amount of the lubricant delivered to the containing space; The lubricating device (20) rotates relative to the housing (10) in a second direction so that the rotary buckle (21) is disengaged from the rotary groove (11), thereby achieving separation of the lubricating device (20) from the housing (10), and the second direction is opposite to the first direction.

2. The gearbox according to claim 1, characterized in that: A positioning protrusion (111) is provided on the groove wall of the rotation groove (11) for limiting the rotation buckle (21) from falling out of the rotation groove (11).

3. The gearbox according to claim 1, characterized in that: The box body (10) is provided with a mounting hole (12), and the mounting hole (12) is communicated with the accommodating space; The lubricating device (20) comprises a liquid adding head (22), at least a part of the structure of the liquid adding head (22) is inserted into the mounting hole (12), and the liquid adding head (22) is provided with a first accommodating cavity (221) and a liquid infusion hole (222) which are connected to each other; Wherein, the lubricant in the first accommodating cavity (221) is transported to the accommodating space through the infusion hole (222).

4. The gearbox according to claim 3, characterized in that: The gear box further comprises a main drive shaft (40), the main drive shaft (40) being installed in the accommodation space, and the main drive shaft (40) being coaxial with the installation hole (12).

5. The gearbox according to claim 3, characterized in that: The lubricating device (20) further comprises a housing (23), the housing (23) being connected to an end of the liquid adding head (22) away from the box body (10), the housing (23) being provided with a second housing cavity (231) and a first opening (232) which are connected to each other, the first opening (232) being used to connect the first housing cavity (221) and the second housing cavity (231); The control device (30) comprises a stopper (31), wherein the stopper (31) is arranged in the first accommodating cavity (221); A spring (223) is further provided in the first accommodating chamber (221), one end of the spring (223) abuts against the liquid adding head (22), and the other end abuts against the stopper (31); The spring (223) applies an elastic force to the stopper (31) to abut against the first opening (232), so that the first accommodating cavity (221) and the second accommodating cavity (231) are maintained in a closed state.

6. The gearbox according to claim 5, characterized in that: A clamping piece (224) is provided on a side of the liquid adding head (22) away from the box body (10); The stopper (31) is provided with a clamping hole (311) at a position corresponding to the clamping member (224), and the clamping member (224) is arranged in the clamping hole (311).

7. The gearbox according to claim 6, characterized in that There are a plurality of the clamping members (224), and the plurality of clamping members (224) are arranged in a ring shape; The spring (223) is sleeved on the outside of the annular structure formed by the plurality of clamps (224).

8. The gearbox according to claim 5, characterized in that: The accommodating shell (23) is further provided with a second opening (233), and the second opening (233) is provided at an end away from the liquid adding head (22); The control device (30) further comprises a driving portion (32), wherein the driving portion (32) is disposed in the second accommodating cavity (231) and is connected to the stop portion (31); The driving portion (32) is adjusted to drive the stop portion (31) to move in a direction away from the first opening (232), so that the first accommodating cavity (221) and the second accommodating cavity (231) are transformed from the closed state to the connected state.

9. The gearbox according to claim 8, characterized in that: An end of the driving portion (32) away from the stop portion (31) is provided with anti-slip textures.

10. The gearbox according to claim 8, characterized in that The lubrication device (20) further comprises a sealing gasket (24), wherein the sealing gasket (24) is arranged at the second opening (233).

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