CN214236559U

CN214236559U - Reciprocating saw conversion assembly

Info

Publication number: CN214236559U
Application number: CN202120039417.4U
Authority: CN
Inventors: 应杰快; 施伟中
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-09-21
Anticipated expiration: 2031-01-06

Abstract

The utility model relates to a reciprocating saw conversion subassembly, including casing, drive assembly, reciprocal output assembly, drive assembly sets up in the casing, and drive assembly one side is provided with reciprocal output assembly in the casing, drive assembly drives reciprocal output assembly reciprocating motion, drive assembly includes rotating cam, rotating spindle, and rotating cam's middle part is equipped with the flat hole in location, rotating spindle's middle section is provided with the flat shaft section of being connected with the flat hole in location, and rotating cam's middle part is passed through the flat hole in location and is connected with flat shaft section axial, and the radial outside a week of rotating cam is equipped with the direction cam edge that forms the return stroke, and the upside on direction cam edge is equipped with annular oil groove on the wall. The middle part of the rotating cam is axially connected with the flat shaft section through the positioning flat hole, so that the connecting area is increased, the connecting structure is more stable, and the assembly is more convenient; the upper side edge wall of the guide cam edge is provided with an annular oil groove, so that lubricating grease or lubricating oil can be better accumulated by the annular oil groove.

Description

Reciprocating saw conversion assembly

Technical Field

The utility model belongs to the technical field of electric tool, in particular to reciprocating saw converting component.

Background

The electric hand drill is a drilling tool powered by an alternating current power supply or a direct current battery, is one of handheld electric tools, uses AC and DC power supplies, generally AC220V and DC12V lithium batteries, is simple and easy to assemble, is a product with the largest sales volume in the electric tool industry, is widely applied to industries such as buildings, decorations, universal furniture and the like, is used for drilling holes or penetrating objects on objects, and is also called as an electric hammer in some industries. The electric hand drill mainly comprises: drill chuck, output shaft, gear, rotor, stator, casing, switch and cable conductor, related spanner accessory supplies to use in addition, and electric hand drill is the instrument that is used for drilling such as metal material, timber, plastics, and some models are furnished with rechargeable battery, can be in certain time, normally work under the condition of no external power supply.

The conversion head is a conversion tool installed on an electric hand drill, is installed at the head of the electric drill and can convert the rotary motion of an output shaft of a motor of the electric drill into linear reciprocating motion, and the multifunctional converter of the electric drill is provided with cutters such as saw blades and files, so that the electric drill can have the functions of an electric saw, an electric file and the like, and the functions of the electric drill are expanded to become a multifunctional electric tool. At present, some converters on the market are high in design cost, multiple in assembly parts and inconvenient to detach and maintain, the converters are only suitable for being used on electric hand drills, electric reciprocating saws and electric hand drills are single products, the existing converters cannot be used on the reciprocating saws, the application range is limited, and the use requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a reciprocating saw conversion assembly is provided.

The utility model is realized in such a way, a reciprocating saw conversion assembly is provided, which comprises a shell, a transmission assembly and a reciprocating output assembly, wherein the transmission assembly is arranged in the shell, one side of the transmission assembly in the shell is provided with the reciprocating output assembly, the transmission assembly drives the reciprocating output assembly to reciprocate, the transmission assembly comprises a rotating cam and a rotating main shaft, the middle part of the rotating cam is provided with a positioning flat hole, the middle part of the rotating main shaft is provided with a flat shaft section connected with the positioning flat hole, the middle part of the rotating cam is axially connected with the flat shaft section through the positioning flat hole, a circle outside the radial direction of the rotating cam is provided with a guide cam edge forming a return stroke, and the upper side edge wall of the guide cam edge is provided with an annular oil groove; the guide cam is higher along one side than the other side, the formed structure is a smooth continuous transition structure, the upper end and the lower end of the rotating main shaft are respectively connected in the shell through bearings, and the upper end of the rotating main shaft extends out of the shell to be used as a power input connecting end; reciprocating output subassembly includes output connecting rod, uide bushing, and the length direction of output connecting rod and the axis parallel arrangement of rotating spindle, and the upper end and the lower extreme of output connecting rod are connected in the casing through the uide bushing respectively, and its lower extreme stretches out outside the casing as the saw blade link, and output connecting rod one side between two sets of uide bushings is equipped with the pulley on two sets of centre gripping direction cam edges, the axial and the output connecting rod fixed connection of pulley.

Furthermore, the upper end and the lower end of the rotating main shaft are respectively provided with an installation shaft end for installing a bearing inner ring, and a bearing installation position for fixing a bearing outer ring is arranged in the shell.

Further, the shell is also provided with a guide sleeve mounting position for mounting the guide sleeve.

Furthermore, a movable space for accommodating the guide cam edge and driving the two groups of pulleys to move up and down after the guide cam edge rotates is arranged in the shell.

Further, the axial direction of the pulley is fixedly connected with the middle part of the output connecting rod through a screw rod.

Compared with the prior art, the middle part of the rotating cam of the reciprocating saw conversion component of the utility model is axially connected with the flat shaft section through the positioning flat hole, thereby increasing the connecting area, ensuring the connecting structure to be more stable and being more convenient to assemble; when in use, the transmission noise is low and the stability is good; the upside along the wall that the guide cam followed is equipped with annular oil groove to the annular oil groove can be better gather lubricating grease or lubricating oil, and the upside pulley that the centre gripping guide cam followed can obtain the lubrication more easily, guarantees driven stability, avoids the mechanism because can not obtain effectual lubrication, seizes or destroys transmission structure. The utility model has the characteristics of the practicality is strong, and is convenient etc.

Drawings

FIG. 1 is a schematic front view of a reciprocating saw conversion assembly according to the present invention;

FIG. 2 is a schematic main sectional view of the reciprocating saw conversion assembly of the present invention;

FIG. 3 is a schematic view of the internal structure of the reciprocating saw converting assembly of the present invention;

FIG. 4 is a schematic view of a rotary cam of the reciprocating saw conversion assembly of the present invention;

FIG. 5 is a schematic view of a rotary spindle of the reciprocating saw conversion assembly of the present invention;

fig. 6 is a schematic perspective view of the reciprocating saw converting assembly of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-6, the present invention relates to a reciprocating saw converting assembly, which comprises a housing 1, a transmission assembly 2, and a reciprocating output assembly 3, wherein the housing is composed of a front shell and a rear shell, and the sides of the front shell and the rear shell are fastened by a plurality of screws to be connected and fastened with each other; the transmission assembly 2 is arranged in the shell 1, and a reciprocating output assembly 3 is arranged on one side of the transmission assembly 2 in the shell 1; the transmission assembly 2 and the reciprocating output assembly 3 are connected in an accommodating space formed by a front shell and a rear shell; the transmission assembly 2 drives the reciprocating output assembly 3 to reciprocate, the transmission assembly 2 comprises a rotating cam 21 and a rotating main shaft 22, a positioning flat hole 210 is formed in the middle of the rotating cam 21, a flat shaft section 220 connected with the positioning flat hole 210 is arranged in the middle of the rotating main shaft 22, and the middle of the rotating cam 21 is axially connected with the flat shaft section 220 through the positioning flat hole 210. Thereby increasing the connecting area and ensuring the connecting structure to be more stable; a guide cam edge 211 forming a return stroke is arranged on the radial outer side of the rotating cam 21 in a circle, and an annular oil groove 212 is arranged on the upper side edge wall of the guide cam edge 211; the edge of one side of the guide cam edge 211 is higher than the edge of the other side, the formed structure is a smooth continuous transition structure, the upper end and the lower end of the rotating main shaft 22 are respectively connected into the shell 1 through bearings 23, and the upper end of the rotating main shaft extends out of the shell 1 to be used as a power input connecting end 24; the reciprocating output assembly 3 comprises an output connecting rod 31 and guide sleeves 32, the length direction of the output connecting rod 31 is parallel to the axis of the rotating main shaft 22, the upper end and the lower end of the output connecting rod 31 are respectively connected into the shell 1 through the guide sleeves 32, the lower end of the output connecting rod 31 extends out of the shell 1 to serve as a saw blade connecting end 30, two groups of pulleys 33 clamping the guide cam edge 211 are arranged on one side of the output connecting rod 31 between the two groups of guide sleeves 32, and the axial direction of each pulley 33 is fixedly connected with the output connecting rod 31. Specifically, the axial direction of each pulley 33 is fixedly connected with the middle part of the output connecting rod 31 through the screw rod 4, passes through a screw hole correspondingly arranged on the output connecting rod 31, and is then clamped and fixed on the output connecting rod 31 through a nut. Because the guide cam edge 211 of the guide cam edge 212 is in a smooth and continuous transition structure, the pulley 33 is more easily guided by the guide cam edge 211 to slide along the track, so that the output connecting rod 31 is driven to reciprocate up and down along the guide sleeve 32, and the saw blade connecting end 30 at the lower end of the output connecting rod 31 is connected with one end of the saw blade in the length direction, so that the saw blade is driven to reciprocate to form a sawing action. The upper end and the lower end of the rotating main shaft 22 are respectively provided with an installation shaft end 221 for installing an inner ring of the bearing 23, and the shell 1 is internally provided with a bearing installation position 11 for fixing an outer ring of the bearing 23. The housing 1 is further provided with a guide sleeve mounting location 12 for mounting a guide sleeve 32. The housing 1 is provided with a movable space 10 for accommodating the guide cam edge 211 and driving the two sets of pulleys 33 to move up and down after the guide cam edge 211 rotates, and the movable space 10 is connected and filled with lubricating oil or lubricating grease. The guide cam edge 211 has an annular oil groove 212 along the upper side edge wall thereof so that the annular oil groove 212 can better accumulate grease or lubricating oil and the upper pulley 33 holding the guide cam edge 211 can be lubricated more easily.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A reciprocating saw conversion component comprises a shell (1), a transmission component (2) and a reciprocating output component (3), wherein the transmission component is arranged in the shell, the reciprocating output component (3) is arranged at one side of the transmission component (2) in the shell (1), the transmission component (2) drives the reciprocating output component (3) to reciprocate, it is characterized in that the transmission component (2) comprises a rotating cam (21) and a rotating main shaft (22), a positioning flat hole (210) is arranged in the middle of the rotating cam (21), a flat shaft section (220) connected with the positioning flat hole (210) is arranged in the middle section of the rotating main shaft (22), the middle part of the rotating cam (21) is axially connected with the flat shaft section (220) through the positioning flat hole (210), a guide cam edge (211) forming a return stroke is arranged on the outer circumference of the radial direction of the rotating cam (21), and an annular oil groove is formed in the upper side edge wall of the guide cam edge (211); (212) the edge of one side of the guide cam edge (211) is higher than the edge of the other side, the formed structure is a smooth and coherent transition structure, the upper end and the lower end of the rotating main shaft (22) are respectively connected into the shell (1) through bearings (23), and the upper end of the rotating main shaft extends out of the shell (1) to be used as a power input connecting end (24); reciprocal output subassembly (3) are including output connecting rod (31), uide bushing (32), the length direction of output connecting rod (31) and the axis parallel arrangement of rotatory main shaft (22), the upper end and the lower extreme of output connecting rod (31) are connected in casing (1) through uide bushing (32) respectively, and its lower extreme stretches out outside casing (1) as saw blade link end (30), output connecting rod (31) one side between two sets of uide bushings (32) is equipped with pulley (33) of two sets of centre gripping direction cam edges (211), the axial and output connecting rod (31) fixed connection of pulley (33).

2. The reciprocating saw conversion assembly as defined in claim 1, wherein the upper end and the lower end of the rotating main shaft (22) are respectively provided with a mounting shaft end (221) for mounting the inner ring of the bearing (23), and the housing (1) is provided with a bearing mounting position (11) for fixing the outer ring of the bearing (23).

3. The reciprocating saw conversion assembly as defined in claim 1, wherein the housing (1) is further provided with a guide bush mounting location (12) for mounting a guide bush (32).

4. The reciprocating saw conversion assembly as defined in claim 1, wherein the housing (1) is provided with a movable space (10) for accommodating the guide cam edge (211) and driving the two sets of pulleys (33) to move up and down after the guide cam edge rotates.

5. The reciprocating saw conversion assembly as defined in claim 1, wherein the pulley (33) is axially fixedly connected to the middle of the output link (31) by means of a screw (4).