CN215334322U - Gear box with insert assembling function - Google Patents

Abstract

The utility model discloses a gear box with an insert assembling function, which comprises a base; the bearing structure is detachably arranged on the upper wall of the base; the utility model relates to the technical field of gearboxes, in particular to a gearbox with an insert assembling function.

Description

Gear box with insert assembling function

Technical Field

The utility model relates to the technical field of gearboxes, in particular to a gearbox with an insert assembling function.

Background

A transmission, which is a vehicle accessory used to change the rotational speed and torque from an engine and to change the transmission ratio of an output shaft and an input shaft in fixed or stepped manner; some automobiles are also provided with a power output mechanism which can be divided into a stepped type transmission, a stepless type transmission and a comprehensive type transmission, and the functions of realizing backing running, interrupting power transmission, changing transmission ratio and the like are achieved;

however, the existing gearbox is integrally fixed and integrated, only corresponding bearings and gears can be installed inside the gearbox for use, the whole gearbox is too single, and the gearbox is inconvenient to disassemble and maintain, so that the existing gearbox with the insert assembling function is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gear box with an insert assembling function, and aims to solve the problems of convenience in maintenance and adjustment.

In order to achieve the purpose, the utility model provides the following technical scheme: a gear box with insert assembling function comprises

A base;

the bearing structure is detachably arranged on the upper wall of the base;

the percussion structure is detachably arranged on the bearing structure in a percussion mode;

the bearing structure comprises a left main frame, a first shaft bracket, a second shaft bracket, a third shaft bracket, a right main frame, a first inserting plate, a first bearing, a second bearing, a third bearing and a fastening bolt;

the base is of a rectangular structure, first through holes with the same structure are formed in positions close to four corners, first threaded holes are formed in positions close to two corners at the left end, two pairs of second threaded holes with the same structure are formed in the right side of the central line of the upper wall of the base and correspond to the first threaded holes respectively, the left main frame is of a box body structure without the upper wall and the right side wall, first mounting threaded holes with the same structure are formed in the positions of the two corners at the front and the rear of the left end of the upper wall, adapter plates with the second through holes are formed in the front side wall and the rear side wall of the bottom section, the left main frame is detachably arranged on the upper wall of the left end of the base, first slots communicated with the upper side wall and the lower side wall are formed in the positions of the central parts of the right side wall of the front end and the rear end of the upper wall, the first shaft bracket is detachably arranged on the right side wall of the left main frame and matched with the left main frame, and first shaft grooves with the same structure are formed in the positions close to the positions of the front top end and the right side wall of the front end and the front end of the front end and the rear end of the left main frame, a first socket is arranged at the central part of the lower wall in the first shaft groove, second slots communicated with the upper side wall and the lower side wall are respectively arranged at the right side walls of the front end and the rear end of the first shaft frame along the central part, the second shaft frame is detachably arranged on the right side wall edge of the first shaft frame and is matched with the first shaft frame, second shaft grooves with the same structure are respectively arranged at the top ends of the front side wall and the rear side wall of the second shaft frame close to the right side wall of the central line, a first socket is arranged at the central part of the lower wall in the second shaft groove, third slots communicated with the upper side wall and the lower side wall are respectively arranged at the right side wall edge of the front end and the rear end of the first shaft frame along the central part, the third shaft grooves with the same structure are respectively arranged at the top ends of the front side wall and the rear side wall of the second shaft frame and is matched with the second shaft frame, and a third socket is arranged at the central part of the lower wall in the third shaft groove, and the right side wall of the front end and the rear end of the third shaft frame are respectively provided with a fourth slot communicated with the upper side wall and the lower side wall along the central position, the right main frame has the same structure with the left main frame, the right main frame is detachably arranged on the upper wall of the base and is in fit butt joint with the right side wall of the third shaft frame along the central position, the upper wall of the right main frame is provided with a second mounting threaded hole with the same structure along the position close to two corners, one end of the first inserting plate is respectively fixedly welded on the central positions of the left side wall of the first shaft frame, the second shaft frame, the third shaft frame and the right main frame, the other end of the first inserting plate is respectively movably inserted in the first slot, the second slot, the third slot and the fourth slot, the first bearing is respectively detachably inserted in the first shaft slot, the upper side wall and the lower side wall of the first bearing are respectively fixedly provided with a first inserting block and are respectively inserted in the first slot, the second bearing is respectively detachably inserted in the second shaft slot, and the upper side wall and the lower side wall of the second bearing are fixedly provided with second insertion blocks and are respectively inserted into the second insertion blocks, the third bearing is respectively detachably embedded in a third shaft groove, the upper side wall and the lower side wall of the third bearing are respectively fixedly provided with third insertion blocks and are respectively inserted into the third insertion blocks, the fastening bolts respectively and movably penetrate through the front side wall adapter plate and the rear side wall adapter plate of the left main frame and the right main frame and are respectively and movably screwed in the first threaded hole of the upper wall of the base and one pair of second threaded holes.

Preferably, the knocking structure comprises a left main cover, a first shaft cover, a second shaft cover, a third shaft cover, a right main cover, a second inserting plate and a long rod bolt;

the left main cover and the left main frame are identical in structure, first limiting grooves which are communicated with the upper wall edge and are respectively matched with the first inserting grooves are formed in the right side walls of the front end and the rear end of the left main cover along the central position, the left main cover is detachably arranged on the upper wall edge of the left main frame and is matched with the left main frame, first long holes which are communicated with the first installing threaded holes are formed in the two corners of the left end of the upper wall, the first shaft cover is identical in structure with the first shaft frame, second limiting grooves which are communicated with the upper wall edge are formed in the right side walls of the front end and the rear end along the central position, the first shaft cover is detachably mounted on the first shaft frame in a knocking mode and is butted with the left main cover and is matched with the first shaft frame, the second shaft cover is identical in structure with the second shaft frame, third limiting grooves which are communicated with the upper wall edge are formed in the right side walls of the front end and the rear end along the central position, and the second shaft cover is detachably mounted on the second shaft frame in a knocking mode, and is butted with the left main cover and is matched with the second shaft frame, the third shaft cover has the same structure with the third shaft frame, and the right side walls of the front and the back ends are provided with fourth limit grooves communicated with the upper wall edge along the central position, the third shaft cover can be disassembled and assembled on the third shaft frame and is butted with the left main cover and is matched with the third shaft frame, the right main cover has the same structure with the left main cover, and two corners of the upper wall are provided with second long holes respectively corresponding to the second mounting threaded holes, the right main cover can be disassembled and assembled on the right main frame and is matched with the third shaft cover, one end of the second plug board is respectively fixed and welded on the top center line of the front and the back end walls of the left side of the first peripheral cover, the front and the back end walls of the left side of the second shaft cover along the top center line, the front and the back end walls of the left side of the third shaft cover along the top center line and the front and the back end walls of the left side of the right main cover along the top center line, and the other end is movably inserted in the first limit groove, the second limit groove, the third limit groove and the fourth limit groove respectively, one end of the long rod bolt movably penetrates through the first long hole of the left main cover and the first long hole of the right main cover and the second long hole respectively, and movably and rotatably connects the first mounting threaded hole and the second threaded hole respectively.

Preferably, the second plugboard and the first plugboard have the same structure and are both T-shaped structures, and the length of the second plugboard is smaller than that of the first plugboard.

Preferably, the first shaft cover, the second shaft cover and the third shaft cover are all concave structures.

Preferably, the first shaft cover, the second shaft cover and the third shaft cover are the same in height and width, and the length of the second shaft cover plus the length of the third shaft cover is equal to the length of the first shaft cover.

Preferably, one pair of second threaded holes in the left side of the upper wall of the base are fixing positions of the first shaft frame and the second shaft frame, and the other pair of second threaded holes in the right side are fixing positions of the first shaft frame, the second shaft frame and the third shaft frame in butt joint.

Compared with the prior art, the utility model has the beneficial effects that: this gear box with inserts equipment function can adjust the installation of first pedestal, second pedestal or third pedestal according to the user demand through bearing structure, and integral erection, dismantlement are convenient moreover, make things convenient for the later stage to overhaul, increase holistic suitability, change single and the fixed use of integration.

Drawings

FIG. 1 is a schematic view of a first assembly configuration of the present invention;

FIG. 2 is a second assembled configuration of the present invention;

FIG. 3 is a schematic view of a split structure of the load-bearing structure of the present invention;

fig. 4 is a schematic diagram of a detachable structure of the knocking structure of the present invention.

In the figure: 1. base, 2, bearing structure, 20, left body frame, 21, first pedestal, 22, second pedestal, 23, third pedestal, 24, right body frame, 25, first picture peg, 26, first bearing, 27, second bearing, 28, third bearing, 29, fastening bolt, 3, percussion structure, 31, left main lid, 32, first axle lid, 33, second axle lid, 34, third axle lid, 35, right main lid, 36, second picture peg, 37, stock bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.

Referring to fig. 1-4, the present invention provides a technical solution: a gear box with insert assembling function comprises a base 1; the bearing structure 2 is detachably arranged on the upper wall of the base 1; the percussion structure 3 is detachably arranged on the bearing structure 2 in a percussion mode; the bearing structure 2 comprises a left main frame 20, a first shaft frame 21, a second shaft frame 22, a third shaft frame 23, a right main frame 24, a first inserting plate 25, a first bearing 26, a second bearing 27, a third bearing 28 and a fastening bolt 29; the base 1 is a rectangular structure, and the positions close to the four corners are all provided with first through holes with the same structure, the left end is close to the two corners and is provided with first threaded holes, the right side of the central line of the upper wall of the base 1 is provided with two pairs of second threaded holes with the same structure and respectively corresponds to the first threaded holes, the left main frame 20 is a box body structure without the upper wall and the right side wall, the positions of the two corners at the front and the back of the left end of the upper wall are both provided with first mounting threaded holes with the same structure, the front and the back side walls of the bottom section are both provided with adapter plates with second through holes, the left main frame 20 is detachably arranged on the upper wall of the left end of the base 1, the right side walls at the front and the back ends are both provided with first slots communicated with the upper and the lower side walls along the central part, the first shaft bracket 21 is detachably arranged on the right side wall of the left main frame 20 and is matched with the left main frame 20, the top ends of the front and the back side walls of the first shaft bracket 21 are both provided with first shaft grooves with the same structure close to the right side wall of the central line, a first socket is arranged at the central part of the lower wall in the first shaft groove, second slots communicated with the upper side wall and the lower side wall are respectively arranged at the right side wall edges of the front end and the rear end of the first shaft bracket 21 along the central part, a second shaft bracket 22 is detachably arranged on the right side wall edge of the first shaft bracket 21 and is matched with the first shaft bracket 21, second shaft grooves with the same structure are respectively arranged at the top ends of the front side wall and the rear side wall of the second shaft bracket 22 close to the right side wall of the central line, a first socket is arranged at the central part of the lower wall in the second shaft groove, third slots communicated with the upper side wall and the lower side wall are respectively arranged at the right side wall edges of the front end and the rear end of the first shaft bracket 21 along the central part, a third shaft bracket 23 is detachably arranged on the right side wall edge of the second shaft bracket 22 and is matched with the second shaft bracket 22, third shaft grooves with the same structure are respectively arranged at the top ends of the front side wall and the rear side wall of the central line, and a third socket is arranged at the central part of the lower wall in the third shaft groove, the right side wall of the front end and the rear end of the third shaft bracket 23 is provided with fourth slots communicated with the upper side wall and the lower side wall along the central position, the right main frame 24 has the same structure with the left main frame 20, the right main frame 24 is detachably arranged on the upper wall of the base 1 and is matched and butted with the right side wall of the third shaft bracket 23 along the central position, the upper wall of the right main frame 24 is provided with second mounting threaded holes with the same structure along the positions close to two corners, one end of a first inserting plate 25 is respectively and fixedly welded on the central positions of the left side walls of the first shaft bracket 21, the second shaft bracket 22, the third shaft bracket 23 and the right main frame 24, the other end is respectively and movably inserted in the first slots, the second slots, the third slots and the fourth slots, the first bearings 26 are respectively and detachably embedded in the first shaft slots, the upper side wall and the lower side wall of the first bearings 26 are respectively and fixedly provided with first inserting blocks and respectively inserted in the first slots, the second bearings 27 are respectively and detachably embedded in the second shaft slots, second inserting blocks are fixedly arranged on the upper side wall and the lower side wall of the second bearing 27 and are respectively inserted into the second inserting holes, the third bearings 28 are respectively detachably embedded into third shaft grooves, the upper side wall and the lower side wall of the third bearings 28 are respectively fixedly provided with third inserting blocks and are respectively inserted into the third inserting holes, and the fastening bolts 29 respectively and movably penetrate through the left main frame 20 and the adapter plates on the front side wall and the rear side wall of the right main frame 24 and are respectively and movably screwed in the first threaded holes in the upper wall of the base 1 and one pair of second threaded holes; through bearing structure 2 easy to assemble and dismantlement, still can adjust the holistic mounting means of gear box according to the user demand simultaneously.

Preferably, the knocking structure 3 further includes a left main cover 31, a first shaft cover 32, a second shaft cover 33, a third shaft cover 34, a right main cover 35, a second insertion plate 36, and a long rod bolt 37;

the left main cover 31 has the same structure with the left main frame 20, the right side walls at the front and rear ends of the left main cover 31 are respectively provided with a first limit groove communicated with the upper wall edge along the central position and respectively engaged with the first slot, the left main cover 31 is detachably arranged on the upper wall edge of the left main frame 20 and engaged with the left main frame 20, the two corners at the left end of the upper wall are respectively provided with a first long hole corresponding to the first mounting threaded hole, the first shaft cover 32 has the same structure with the first shaft frame 21, the right side walls at the front and rear ends are respectively provided with a second limit groove communicated with the upper wall edge along the central position, the first shaft cover 32 is detachably assembled on the first shaft frame 21 in a knocking manner and is abutted with the left main cover 31 and engaged with the first shaft frame 21, the second shaft cover 33 is identical in structure with the second shaft frame 22, the right side walls at the front and rear ends are respectively provided with a third limit groove communicated with the upper wall edge along the central position, the second shaft cover 33 is detachably assembled on the second shaft frame 22, and butt-jointed with the left main cover 31 and fitted with the second shaft frame 22, the third shaft cover 34 is identical in structure with the third shaft frame 23, and the right side walls of the front and rear ends are respectively provided with a fourth limit groove communicated with the upper wall edge along the central position, the third shaft cover 34 is detachably mounted on the third shaft frame 23 in a knocking way and butt-jointed with the left main cover 31 and fitted with the third shaft frame 23, the right main cover 35 is identical in structure with the left main cover 31, and two corners of the upper wall are respectively provided with a second long hole corresponding to the second mounting threaded hole, the right main cover 35 is detachably mounted on the right main frame 24 in a knocking way and is butt-fitted with the third shaft cover 34, one end of a second plug plate 36 is respectively fixedly welded on the front and rear end walls of the left side of the first peripheral cover along the top end central line, the front and rear end walls of the left side of the second shaft cover 33 along the top end central line, the front and rear end walls of the left side of the third shaft cover 34 along the top end central line and the front and rear end walls of the left side of the right main cover 35 along the top end central line, and the other end is movably inserted in the first limit groove, the second limit groove, the third limit groove and the fourth limit groove respectively, one end of the long rod bolt 37 is movably penetrated in the first long hole and the second long hole of the left main cover 31 and the right main cover 35 respectively, and is movably screwed in the first mounting threaded hole and the second threaded hole respectively.

Preferably, the second board 36 has the same structure as the first board and is a T-shaped structure, and the length of the second board 36 is smaller than that of the first board 25, so as to meet the design requirement, and ensure that the first shaft cover 32, the second shaft cover 33 and the third shaft cover 34 which are opposite to each other cannot be pulled out upwards after being installed.

Preferably, the first shaft cover 32, the second shaft cover 33 and the third shaft cover 34 are all concave structures for designing installation and docking requirements.

Preferably, the first shaft cover 32, the second shaft cover 33 and the third shaft cover 34 have the same height and width, and the length of the second shaft cover 33 plus the length of the third shaft cover 34 are equal to the length of the first shaft cover 32, so that the second shaft bracket and the third shaft bracket 23 can be directly mounted.

As preferred scheme, further, one pair of the second screw holes on the left side of the upper wall of the base 1 are the fixing positions of the first shaft bracket 21 and the second shaft bracket 22, and the other pair of the second screw holes on the right side are provided with the fixing positions of the first shaft bracket 21, the second shaft bracket 22 and the third shaft bracket 23 in butt joint, so that the mounting positions can be designed, and the mounting shaft brackets can be adjusted and fixed conveniently according to use requirements.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Example (b): as can be seen from fig. 1 to 4 in the specification, according to the use requirement, the first shaft bracket 21 can be assembled on the second shaft bracket 22, or the first shaft bracket 21, the second shaft bracket 22 and the third shaft bracket 23 can be assembled in sequence, or the second shaft bracket 22 and the third shaft bracket 23 can be assembled, so that the size transmission requirement of the internal gear can be adjusted, and three different assembling modes can be realized; when the first assembly mode is used for installation, the base 1 is laid flat, the left main frame 20 in the bearing structure 2 is fixed at the left end of the base 1 through the fastening bolt 29, then the left end of the first shaft frame 21 is spliced and assembled with the right end of the left main frame 20 through the first plug board 25, and the first plug board 25 on the first shaft frame 21 is inserted into the first slot at the right end of the left main frame 20 to be connected; the second shaft frame 22 and the right main frame 24 are sequentially assembled by the same principle, and the assembled right main frame 24 is fixed on the upper wall of the base 1 by the fastening bolt 29 (the third shaft frame 23 can be fixed between the second shaft frame and the right main frame 24 by the same principle); secondly, embedding the corresponding bearings in the corresponding shaft grooves; then according to the installation, the first shaft cover 32 and the second shaft cover 33 or the third shaft cover 34 in the knocking structure 3 are mutually assembled by means of the second inserting plate 36 and are fixed between the left main cover 31 and the right main cover 35 by the same assembling principle as the assembling principle, so that the integral assembly of the cover body is completed; finally, the left main cover 31 and the right main cover 35 are respectively matched with the left main frame 20 and the right main frame 24, the first shaft frame 21 is matched with the first shaft cover 32, the second shaft frame 22 is matched with the second shaft cover 33, and the third shaft frame 23 is matched and butted with the third shaft cover 34 by tapping on the bearing structure 2, and the long rod bolt 37 is used for realizing the fixed installation.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "two ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated; also, unless otherwise expressly stated or limited, the terms "fixedly welded," "removably inserted," "threadably engaged," and the like are to be construed broadly and may, for example, be fixedly attached, removably attached, or integral; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A gearbox with inserts equipment function which characterized in that: comprises that

A base (1);

the bearing structure (2) is detachably arranged on the upper wall of the base (1);

the percussion structure (3) is detachably arranged on the bearing structure (2) in a percussion way;

the bearing structure (2) comprises a left main frame (20), a first shaft bracket (21), a second shaft bracket (22), a third shaft bracket (23), a right main frame (24), a first inserting plate (25), a first bearing (26), a second bearing (27), a third bearing (28) and a fastening bolt (29);

the base (1) is of a rectangular structure, first through holes with the same structure are formed in positions close to four corners, first threaded holes are formed in positions close to two corners at the left end, two pairs of second threaded holes with the same structure are formed in the right side of the central line of the upper wall of the base (1) and correspond to the first threaded holes respectively, the left main frame (20) is of a box body structure without an upper wall and a right wall, first mounting threaded holes with the same structure are formed in the positions of the two corners at the left end and the front end of the upper wall, adapter plates with second through holes are formed in the front side wall and the rear side wall of the bottom section, the left main frame (20) is detachably arranged on the upper wall of the left end of the base (1), first slots communicated with the upper side wall and the lower side wall are formed in the positions of the right side walls at the front end and the rear end of the upper wall, the first shaft bracket (21) is detachably arranged on the right side wall of the left main frame (20) and is matched with the left main frame (20), the top ends of the front side wall and the rear side wall of the first shaft bracket (21) close to the right side wall of the central line are respectively provided with a first shaft groove with the same structure, the center part of the lower wall in the first shaft groove is provided with a first socket, the right side walls of the front end and the rear end of the first shaft bracket (21) are respectively provided with a second socket communicated with the upper side wall and the lower side wall along the center part, the second shaft bracket (22) is detachably arranged on the right side wall edge of the first shaft bracket (21) and is matched with the first shaft bracket (21), the top ends of the front side wall and the rear side wall of the second shaft bracket (22) close to the right side wall of the central line are respectively provided with a second shaft groove with the same structure, the center part of the lower wall in the second shaft groove is provided with a first socket, the right side walls of the front end and the rear end of the first shaft bracket (21) are respectively provided with a third socket communicated with the upper side wall and the lower side wall along the center part, the third shaft bracket (23) is detachably arranged on the right side wall edge of the second shaft bracket (22), and is matched with the second shaft frame (22), the top ends of the front side wall and the rear side wall of the third shaft frame (23) are provided with third shaft grooves with the same structure near the right side wall of the central line, the central part of the lower wall in the third shaft groove is provided with a third socket, the right side walls of the front end and the rear end of the third shaft frame (23) are provided with fourth slots communicated with the upper side wall and the lower side wall along the central part, the right main frame (24) is identical with the left main frame (20), the right main frame (24) is detachably arranged on the upper wall of the base (1) and is matched and butted with the right side wall of the third shaft frame (23) along the central part, the upper wall of the right main frame (24) is provided with second mounting threaded holes with the same structure near the two corners, one end of the first plug board (25) is respectively fixedly welded on the central parts of the left side walls of the first shaft frame (21), the second shaft frame (22), the third shaft frame (23) and the right main frame (24), and the other end is respectively movably inserted in the first slot, the second slot, the third slot and the fourth slot, the first bearings (26) are respectively and detachably embedded in the first shaft grooves, the upper side wall and the lower side wall of each first bearing (26) are respectively and fixedly provided with a first inserting block, and are respectively inserted into the first sockets, the second bearings (27) are respectively and detachably embedded in the second shaft grooves, the upper side wall and the lower side wall of the second bearings (27) are respectively and fixedly provided with a second insertion block, and are respectively inserted in the second sockets, the third bearings (28) are respectively and detachably embedded in the third shaft grooves, the upper and lower side walls of the third bearings (28) are respectively and fixedly provided with third insertion blocks, and are respectively inserted into the third sockets, the fastening bolts (29) respectively and movably penetrate through adapter plates on the front side wall and the rear side wall of the left main frame (20) and the right main frame (24), and are respectively movably screwed in the first threaded hole on the upper wall of the base (1) and one pair of the second threaded holes.

2. A gear box with insert assembling function according to claim 1, wherein: the percussion structure (3) comprises a left main cover (31), a first shaft cover (32), a second shaft cover (33), a third shaft cover (34), a right main cover (35), a second flashboard (36) and a long rod bolt (37);

the left main cover (31) is the same as the left main frame (20) in structure, the right side walls at the front end and the rear end of the left main cover are respectively provided with a first limiting groove communicated with the upper wall edge and respectively matched with the first slot, the left main cover (31) is detachably arranged on the upper wall edge of the left main frame (20) and matched with the left main frame (20), the two corners at the left end of the upper wall are respectively provided with a first through long hole corresponding to the first mounting threaded hole, the first shaft cover (32) is the same as the first shaft frame (21) in structure, the right side walls at the front end and the rear end of the left main cover are respectively provided with a second limiting groove communicated with the upper wall edge, the first shaft cover (32) is detachably buckled on the first shaft frame (21) and is butted with the left main cover (31) and matched with the first shaft frame (21), and the second shaft cover (33) is the same as the second shaft frame (22) in structure, and the right side walls at the front end and the rear end are respectively provided with a third limit groove communicated with the upper wall edge along the central position, the second shaft cover (33) is detachably arranged on the second shaft frame (22) in a knocking way and is butted with the left main cover (31) and is matched with the second shaft frame (22), the third shaft cover (34) is identical to the third shaft frame (23) in structure, the right side walls at the front end and the rear end are respectively provided with a fourth limit groove communicated with the upper wall edge along the central position, the third shaft cover (34) is detachably arranged on the third shaft frame (23) in a knocking way and is butted with the left main cover (31) and is matched with the third shaft frame (23), the right main cover (35) is identical to the left main cover (31) in structure, and the two corner positions of the upper wall are respectively provided with second long holes corresponding to the second mounting threaded holes, the right main cover (35) is detachably arranged on the right main frame (24) and is matched with the third shaft cover (34), second picture peg (36) one end is fixed weld respectively around first week lid left side on two end walls along the top central line, on two end walls along the top central line around second axle lid (33) left side, on two end walls along the top central line around third axle lid (34) left side and two end walls along the top central line around right main lid (35) left side, and the other end moves about the cartridge respectively in first spacing groove, second spacing groove, third spacing groove and fourth spacing inslot, stock bolt (37) one end activity respectively runs through in left main lid (31) and right main lid (35) first slot hole and second slot hole to the activity is connect in first installation screw hole and second screw hole soon respectively.

3. A gear box with insert assembling function according to claim 2, wherein: the second plug board (36) has the same structure as the first plug board and is of a T-shaped structure, and the length of the second plug board (36) is smaller than that of the first plug board (25).

4. A gear box with insert assembling function according to claim 2, wherein: the first shaft cover (32), the second shaft cover (33) and the third shaft cover (34) are all concave structures.

5. A gear box with insert assembling function according to claim 4, wherein: the first shaft cover (32), the second shaft cover (33) and the third shaft cover (34) are identical in height and width, and the length of the second shaft cover (33) plus the length of the third shaft cover (34) is equal to the length of the first shaft cover (32).

6. A gear box with insert assembling function according to claim 1, wherein: one pair of second threaded holes in the left side of the upper wall of the base (1) are at the fixing positions of the mounting positions of the first shaft bracket (21) and the second shaft bracket (22), and the other pair of second threaded holes in the right side are at the fixing positions of the mounting positions of the first shaft bracket (21), the second shaft bracket (22) and the third shaft bracket (23) in a butt joint mode.

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