CN218377616U

CN218377616U - Electric tool gear box

Info

Publication number: CN218377616U
Application number: CN202222808533.5U
Authority: CN
Inventors: 蔡逢春; 尹新捷; 王鹏
Original assignee: KUNSHAN GAOSHENG PRECISION ELECTROMECHANICAL CO Ltd
Current assignee: KUNSHAN GAOSHENG PRECISION ELECTROMECHANICAL CO Ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-01-24
Anticipated expiration: 2032-10-24

Abstract

The utility model relates to an electric tool technical field, the utility model provides an electric tool gear box, which comprises a mounting bas, bearing and pivot, the bearing is installed on the mount pad, pivot connection bearing, the pivot cover is equipped with first ratchet and second ratchet, be equipped with adjustment mechanism between mount pad and the first ratchet, adjustment mechanism is adjusting shim, adjusting shim has connection key and a plurality of arch, the mount pad inboard is equipped with a plurality of recesses, recess swing joint is protruding, the mount pad cover is equipped with first casing and second casing, connection key links to each other with first casing, the one end that the bearing was kept away from in the pivot runs through first casing, the second casing extends to the second casing outside, first casing, be equipped with buffer gear between second casing and the mount pad, this application is through setting up regulation structure and buffer gear, rotatory first casing can change the relative motion state between first ratchet and the second ratchet, collocation second casing, realize the switching between the multiple function, the problem of prior art gear box function singleness has been solved.

Description

Electric tool gear box

Technical Field

The application relates to the technical field of electric tools, in particular to an electric tool gear box.

Background

Electric tools are widely used in society, and the working principle thereof is mainly as follows: the motor drives the chuck to rotate after passing through the speed reducing mechanism, the chuck clamps the drill bit or the screwdriver, the functions of an electric drill or an electric screwdriver (screwdriver) can be realized, and the key component of the electric tool is a gear box.

Along with the development of electric tool trade, the user constantly improves to the requirement of electric tool function, needs the function of using electric drill or electronic bottle opener among the daily life, and in house decoration, electric tool can be used for complicated operating mode, if punch etc. on hard brittle materials such as concrete, nevertheless current gear box product function singleness can not satisfy the user demand under the complicated operating mode.

Disclosure of Invention

An object of the embodiment of this application is to provide an electric tool gear box, it can solve the technical problem of gear box function singleness among the prior art.

The embodiment of the application provides an electric tool gear box, adopts following technical scheme:

the utility model provides an electric tool gear box, includes mount pad, bearing and pivot, the bearing is installed on the mount pad, the pivot is rotated and is connected the bearing, the pivot cover is equipped with first ratchet and second ratchet, first ratchet is located the bearing with between the second ratchet, the mount pad with be equipped with adjustment mechanism between the first ratchet, adjustment mechanism is adjusting shim, adjusting shim has bond and a plurality of arch, the mount pad inboard is equipped with a plurality of recesses, recess swing joint it is protruding, the mount pad cover is equipped with first casing and second casing, first casing is located the mount pad with between the second casing, bond with first casing links to each other, the pivot is kept away from the one end of bearing runs through first casing the second casing extends to the second casing outside, first casing the second casing with be equipped with buffer gear between the mount pad.

The above-mentioned electric tool gear box of this application, the mount pad has the spread groove, first casing inboard is equipped with the spacing groove, the one end of connecting key runs through the spread groove inserts the spacing inslot.

The above-mentioned electric tool gear box of this application, buffer gear includes first packing ring, second packing ring, spring, the spring is located first packing ring with between the second packing ring, first packing ring is located first casing is inboard, the second packing ring is located second casing is inboard.

The above-mentioned electric tool gear box of this application, second casing inboard is equipped with a plurality of guide ways, the second packing ring outside is equipped with a plurality of guide blocks, the guide block is located in the guide way.

The above-mentioned electric tool gear box of this application, first ratchet is close to the one end of bearing is equipped with the depressed part, the connection key is located in the depressed part.

The above-mentioned electric tool gear box of this application, the first casing outside is equipped with anti-skidding line.

The beneficial effect of this application:

the utility model provides a pair of electric tool gear box, use current gear box as the basis, increase first casing, can drive the connection key through rotatory first casing and remove about, when protruding roll-off recess, swing joint between adjustment mechanism and the mount pad, reason gap between connection key and the spread groove, can not restrict the front and back displacement and the rotary motion of pivot, when the pivot is rotatory, second ratchet and first ratchet can be the back-and-forth movement simultaneously, produce the hammering action, when protruding roll-off recess, connect the key card in the spread groove, can restrict the front and back displacement of pivot this moment, the pivot only produces the rotary motion, first ratchet can not contact with the second ratchet, when connecting the key card in the spread groove, collocation second casing, the output torque of pivot can be adjusted.

Set up buffer gear between first casing, second casing and the mount pad, play the cushioning effect, prevent that the during operation from receiving factors such as resistance too big because the pivot from leading to the gear box to damage.

This application is through setting up adjustment structure and buffer gear, and rotatory first casing can change the relative motion state between first ratchet and the second ratchet, and the second casing of collocation realizes the switching between the multiple function, has solved the problem of prior art gear box function singleness.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is an exploded view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an exploded view of the connection structure of the buffer mechanism and the second housing of the present invention;

FIG. 4 is a structural diagram of the adjusting mechanism of the present invention;

FIG. 5 is a structural diagram of the mounting base of the present invention;

fig. 6 is a schematic view of a connection structure between the adjusting mechanism and the first housing according to the present invention;

fig. 7 is a schematic view of a connection structure between the adjusting mechanism and the mounting base of the present invention;

fig. 8 is a structural view of the present invention.

The reference numbers are respectively:

1. a mounting seat; 11. a groove; 12. connecting grooves; 2. a rotating shaft; 3. a first ratchet wheel; 4. a second ratchet; 5. a second housing; 51. a guide groove; 6. a first housing; 61. a limiting groove; 7. an adjustment mechanism; 71. adjusting the gasket; 72. a protrusion; 73. a connecting key; 8. a buffer mechanism; 81. a first gasket; 82. a spring; 83. a second gasket; 84. a guide block; 9. and a bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

As shown in fig. 1-5, an electric tool gear box comprises a mounting seat 1, a bearing 9 and a rotating shaft 2, wherein the bearing 9 is mounted on the mounting seat 1, the rotating shaft 2 is rotatably connected with the bearing 9, the rotating shaft 2 is sleeved with a first ratchet wheel 3 and a second ratchet wheel 4, the first ratchet wheel 3 and the second ratchet wheel 4 rotate around the rotating shaft 2, the first ratchet wheel 3 and the second ratchet wheel 4 are positioned in the mounting seat 1, the second ratchet wheel 4 and the rotating shaft 2 move synchronously, can move back and forth along the rotating shaft 2, the first ratchet wheel 3 is arranged between the bearing 9 and the second ratchet wheel 4, an adjusting mechanism 7 is arranged between the mounting seat 1 and the first ratchet wheel 3, the adjusting mechanism 7 is an adjusting gasket 71, the adjusting gasket 71 is provided with a connecting key 73 and a plurality of bulges 72, the inner side of the mounting seat 1 is provided with a plurality of grooves 11, the grooves 11 are movably connected with the bulges 72, by adjusting the position of the adjusting washer 71, the protrusion 72 slides into and out of the groove 11, thereby limiting the forward and backward displacement of the rotating shaft 2, further adjusting the relative motion state between the first ratchet wheel 3 and the second ratchet wheel 4, the mounting seat 1 is sleeved with a first shell 6 and a second shell 5, the first shell 6 is arranged between the mounting seat 1 and the second shell 5, the first shell 6 is connected with a connecting key 73, the relative position between the adjusting mechanism 7 and the mounting base 1 is changed by rotating the first shell 6 to drive the connecting key 73 to rotate, and then change the relative motion state between first ratchet 3 and the second ratchet 4, the one end that bearing 9 was kept away from to pivot 2 runs through first casing 6, second casing 5 extends to the second casing 5 outside, be equipped with buffer gear 8 between first casing 6, second casing 5 and mount pad 1, buffer gear 8 plays the cushioning effect between first casing 6, second casing 5 and mount pad 1, prevent that the during operation from damaging the gear box because pivot 2 receives the too big scheduling problem of resistance.

As shown in fig. 3, 6 and 7, the mounting base 1 has a connection groove 12, the connection groove 12 is a convex structure, the inner side of the first housing 6 is provided with a limit groove 61, one end of the connection key 73 penetrates through the connection groove 12 and is inserted into the limit groove 61, so that the connection key 73 synchronously rotates when the first housing 6 is rotated, when the connection key 73 is located at two sides of the connection groove 12, the protrusion 72 slides out of the groove 11, the connection key 73 is clamped in the connection groove 12 to limit the front and back displacement of the rotating shaft 2, the rotating shaft 2 only rotates, the first ratchet 3 does not contact with the second ratchet 4, at this time, the rotating shaft 2 only generates a rotating action (an electric drill function), the connecting key 73 can adjust the output torque of the rotating shaft 2 through the arrangement of the second shell 5 in the above state, so as to switch to the function of an electric screwdriver, when the connecting key 73 is located at the middle position of the connecting groove 12, the protrusion 72 slides into the groove 11, and at this time, the front and back displacement of the rotating shaft 2 cannot be limited, so that when the rotating shaft 2 rotates, the second ratchet wheel 4 moves back and forth along the rotating shaft 2 and contacts with the first ratchet wheel 3, and a hammering action (a hammer drill function) is generated between the second ratchet wheel 4 and the first ratchet wheel 3.

As shown in fig. 1 to 3, the buffer mechanism 8 includes a first washer 81, a second washer 83, and a spring 82, the spring 82 is disposed between the first washer 81 and the second washer 83, the first washer 81 is located inside the first housing 6, the second washer 83 is located inside the second housing 5, when the acting force applied to the rotating shaft 2 is too large, the spring 82 buffers the acting force, and prevents the gear box from being damaged due to too large resistance applied to the rotating shaft 2 during operation.

As shown in fig. 1 and 3, the second housing 5 has a plurality of guide grooves 51 on the inner side, a plurality of guide blocks 84 on the outer side of the second washer 83, and the guide blocks 84 are disposed in the guide grooves 51, so that the guide blocks 84 slide in the guide grooves 51 when the spring 82 expands and contracts, thereby improving the stability of the operation of the buffer mechanism 8 and the gear box.

As shown in fig. 1 and 3, a recess is formed at one end of the first ratchet 3 close to the bearing 9, the connecting key 73 is disposed in the recess, and the connecting key 73 is rotated to contact the recess of the first ratchet 3, thereby limiting the position of the first ratchet 3.

As shown in fig. 6, the first housing 6 is provided with anti-slip threads on the outer side thereof, so that an operator can rotate the first housing 6 to drive the connecting key 73 to rotate.

The utility model provides a pair of electric tool gear box, use current gear box as the basis, increase first casing 6, can drive the connecting key 73 through rotatory first casing 6 and remove about, when protruding 72 slips into recess 11, swing joint between adjustment mechanism 7 and the mount pad 1, leave the gap between connecting key 73 and the spread groove 12, can not restrict the front and back displacement and the rotary motion of pivot 2, when pivot 2 is rotatory, second ratchet 4 can the simultaneous back-and-forth movement with first ratchet 3, produce the hammering action, when protruding 72 roll-off recess 11, connecting key 73 card is in spread groove 12, can restrict the front and back displacement of pivot 2 this moment, pivot 2 only produces the rotary motion, first ratchet 3 can not contact with second ratchet 4, when connecting key 73 card is in spread groove 12, collocation second casing 5, can adjust the output torque of pivot 2, first casing 6, set up buffer gear 8 between second casing 5 and the mount pad 1, play the cushioning effect, prevent that during operation from receiving factors such as resistance leads to the gear box damage.

This application is through setting up adjustment structure 7 and buffer gear 8, and rotatory first casing 6 can change the relative motion state between first ratchet 3 and the second ratchet 4, and collocation second casing 5 realizes the switching between the multiple function, has solved the problem of prior art gear box function singleness.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides an electric tool gear box, includes mount pad, bearing and pivot, the bearing is installed on the mount pad, the pivot is rotated and is connected the bearing, its characterized in that: the pivot cover is equipped with first ratchet and second ratchet, first ratchet is located the bearing with between the second ratchet, the mount pad with be equipped with adjustment mechanism between the first ratchet, adjustment mechanism is adjusting shim, adjusting shim has connection key and a plurality of archs, the mount pad inboard is equipped with a plurality of recesses, recess swing joint the arch, the mount pad cover is equipped with first casing and second casing, first casing is located the mount pad with between the second casing, the connection key with first casing links to each other, the pivot is kept away from the one end of bearing runs through first casing the second casing extends to the second casing outside, first casing the second casing with be equipped with buffer gear between the mount pad.

2. A power tool gearbox according to claim 1 wherein: the mounting base is provided with a connecting groove, a limiting groove is formed in the inner side of the first shell, and one end of the connecting key penetrates through the connecting groove and is inserted into the limiting groove.

3. A power tool gearbox according to claim 1 wherein: the buffer mechanism comprises a first washer, a second washer and a spring, the spring is arranged between the first washer and the second washer, the first washer is located on the inner side of the first shell, and the second washer is located on the inner side of the second shell.

4. A power tool gearbox according to claim 3 wherein: a plurality of guide grooves are formed in the inner side of the second shell, a plurality of guide blocks are arranged on the outer side of the second gasket, and the guide blocks are arranged in the guide grooves.

5. A power tool gearbox according to claim 1 wherein: one end of the first ratchet wheel, which is close to the bearing, is provided with a depressed part, and the connecting key is arranged in the depressed part.

6. A power tool gearbox according to claim 1 wherein: the outer side of the first shell is provided with anti-skid grains.