CN215257445U

CN215257445U - Multi-section hollow shaft

Info

Publication number: CN215257445U
Application number: CN202121386127.3U
Authority: CN
Inventors: 钱经春
Original assignee: Jiangsu Runxingchen Machinery Manufacturing Co ltd
Current assignee: Jiangsu Runxingchen Machinery Manufacturing Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-21
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a multi-section hollow shaft, which relates to the field of hollow shafts, and comprises a first main body and a second main body, wherein a plurality of key grooves in groups are arranged on the inner side walls of the first main body and the second main body, a protection mechanism is arranged on the outer part of the first main body and the second main body, a connecting mechanism is arranged between the first main body and the second main body, the protection mechanism comprises a protection sleeve, one side of the protection sleeve is connected with a plug board, the other side of the protection sleeve is provided with a slot matched with the plug board, the inner side wall of the protection sleeve is connected with a clamping block, the first main body and the outer part of the main body are provided with clamping grooves matched with the clamping block, one end of the clamping block is provided with a magnetic sheet, the outer side surface of the protection sleeve is provided with a round hole in a position close to one side, a fixing rod is inserted in the round hole, and one end of the fixing rod is fixedly provided with a connecting circular plate; the multi-section hollow shaft is convenient for workers to replace protective sleeves damaged by long-term use, and the workers can connect and install multiple groups of hollow shafts conveniently.

Description

Multi-section hollow shaft

Technical Field

The utility model relates to a hollow shaft field specifically is a multistage formula hollow shaft.

Background

The hollow shaft is characterized in that a through hole is formed in the center of the shaft body, an inner key groove is formed in the through hole, a stepped cylinder is formed on the outer surface of the shaft body, an outer key groove is formed in the outer surface of the shaft body, the central through hole of the shaft is sleeved with a main shaft of the barrel, and input power is directly transmitted to the main shaft of the barrel through a transmission gear arranged on the cylinder on the outer surface of the shaft body to drive the shaft.

The multi-section hollow shaft in the market is inconvenient for workers to connect a plurality of groups of hollow shafts and for the workers to replace the protective sleeves damaged by long-term use, and therefore a multi-section hollow shaft is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multistage formula hollow shaft to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-section hollow shaft comprises a first main body and a second main body, wherein a plurality of groups of inner key grooves are formed in the inner side walls of the first main body and the inner side walls of the second main body, a protection mechanism is arranged outside the first main body and the second main body, and a connecting mechanism is arranged between the first main body and the second main body.

As a further proposal of the utility model, the protection mechanism includes the protective sheath, protective sheath one side is connected with the picture peg, and the slot that agrees with the picture peg mutually is seted up to its opposite side, the protective sheath inside wall is connected with the fixture block, the main part one with the main part outside set up the draw-in groove that agrees with mutually with the fixture block.

As a further scheme of the utility model, the magnetic sheet is installed to fixture block one end, the protective sheath lateral surface is close to one side position and runs through and has seted up the round hole, round hole inside is inserted and is equipped with the dead lever, the fixed plectane that is provided with of dead lever one end, the fixed orifices that agrees with mutually with the dead lever is seted up to the picture peg lateral surface.

As a further scheme of the utility model, coupling mechanism includes the jack, the movable groove has been seted up to the jack inside wall, the jack is inside to be inserted and is equipped with the screw rod, movable groove internally mounted has the nut, a plurality of screw of group have been seted up to main part one-to-one side equidistance.

As a further proposal of the utility model, the main part bilateral surface is close to one side position and has seted up square groove, the activity of nut one side sets up in square inslot portion, screw rod one end runs through the nut setting, and its other end passes through screw and a main part activity setting.

As a further proposal of the utility model, a plurality of groups of screw threads one have been seted up to the screw rod lateral surface, a plurality of groups of screw threads two have been seted up to the nut inside wall, and screw thread one agrees with screw thread two phase, main part one is through nut, screw rod cooperation screw and two movable mounting of main part.

Compared with the prior art, the beneficial effects of the utility model are that: in the multi-section hollow shaft, when the protective sleeve is damaged, the fixing rod can be pulled out from the fixing hole and the round hole by holding the connecting circular plate by hand, then one end of the inserting plate is drawn out from the inside of the inserting groove, at the moment, the protective sleeve can be taken down from the first main body, then a new protective sleeve is sleeved outside the main body, a clamping block arranged on the inner side wall of the protective sleeve is inserted into the clamping groove, wherein the magnetic sheet arranged at the lower end of the clamping block can be well adsorbed at the bottom end in the clamping groove, so that the clamping block is more stably clamped in the clamping groove, and the protective sleeve can be well fixed on the first main body, then one end of the inserting plate is inserted into the inserting slot, and one end of the fixing rod is inserted into the fixing hole through the round hole, so that two ends of the new protective sleeve can be connected together, therefore, a new protective sleeve is arranged outside the main body, and a worker can replace the protective sleeve damaged by long-term use conveniently.

In the multi-section hollow shaft, the screw rod in the connecting mechanism is aligned and inserted into the screw hole formed in one side of the main body, then the nut is rotated through the square groove, so that the nut is rotated in the movable groove, one end of the screw rod is driven to move leftwards along the inside of the jack, the other end of the screw rod is rotated to the inside of the screw hole, one end of the main body and one end of the main body are connected together, a plurality of groups of the main bodies I can be connected with the main body II in the same way, and therefore workers can conveniently connect and install a plurality of groups of the hollow shaft.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a main body structure of the present invention;

FIG. 3 is a schematic structural view of the second main body of the present invention;

fig. 4 is an enlarged view of B in fig. 3 according to the present invention;

FIG. 5 is a schematic structural view of the middle protection mechanism of the present invention;

fig. 6 is an enlarged view of a portion a in fig. 5 according to the present invention.

In the figure: 1. a first main body; 2. a second main body; 3. a protective sleeve; 4. inserting plates; 5. a slot; 6. A circular hole; 7. fixing the rod; 8. connecting the circular plate; 9. a clamping block; 10. an inner keyway; 11. a jack; 12. a screw; 13. a nut; 14. a square groove; 15. a screw hole; 16. a card slot; 17. a movable groove; 18. a connecting mechanism; 19. a protection mechanism; 20. a magnetic sheet.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-6, the present invention provides a technical solution: a multi-section hollow shaft comprises a first main body 1 and a second main body 2, wherein a plurality of groups of inner key grooves 10 are formed in the inner side walls of the first main body 1 and the second main body 2, a protection mechanism 19 is arranged outside the first main body 1 and the second main body 2, and a connecting mechanism 18 is arranged between the first main body 1 and the second main body 2.

Referring to fig. 3-4, the connecting mechanism 18 includes a jack 11, a movable groove 17 is formed in an inner side wall of the jack 11, a screw 12 is inserted into the jack 11, a nut 13 is installed in the movable groove 17, and a plurality of screw holes 15 are equidistantly formed in one side of the main body 1.

The outer side surface of the second main body 2 is provided with a square groove 14 close to one side, one side of the nut 13 is movably arranged in the square groove 14, one end of the screw rod 12 penetrates through the nut 13, the other end of the screw rod is movably arranged with the first main body 1 through a screw hole 15, the outer side surface of the screw rod 12 is provided with a plurality of groups of first threads, the inner side wall of the nut 13 is provided with a plurality of groups of second threads, the first threads are matched with the second threads, and the first main body 1 is movably arranged with the second main body 2 through the nut 13 and the screw rod 12 in a matched manner of the screw hole 15.

During the use, aim at the screw rod 12 among the coupling mechanism 18 and insert and establish screw 15 that main part 1 side was seted up, then rotate nut 13 through square groove 14 for nut 13 rotates in movable groove 17 is inside, thereby drive screw rod 12 one end along the inside left removal of jack 11, make its other end rotate to inside screw 15, can link together main part 1 one end and main part two 2 one end, can link to each other a plurality of main part one 1 and main part two 2 with the same reason, thereby the staff of being convenient for connects the installation this hollow shaft of multiunit.

Example 2

Referring to fig. 5-6, the protection mechanism 19 includes a protection cover 3, one side of the protection cover 3 is connected with a plug board 4, the other side of the protection cover 3 is provided with a slot 5 matched with the plug board 4, the inner side wall of the protection cover 3 is connected with a clamping block 9, a clamping groove 16 matched with the clamping block 9 is arranged outside a first main body 1 and a second main body 2, a magnetic sheet 20 is installed at one end of the clamping block 9, a round hole 6 is arranged on the outer side surface of the protection cover 3 near one side in a penetrating manner, a fixing rod 7 is inserted in the round hole 6, one end of the fixing rod 7 is fixedly provided with a connecting circular plate 8, and a fixing hole matched with the fixing rod 7 is arranged on the outer side surface of the plug board 4.

Specifically, the protective sleeve 3 in the protective mechanism 19 can well protect the outer side surfaces of the first main body 1 and the second main body 2, so as to effectively reduce the abrasion of the outer side surfaces of the first main body 1 and the second main body 2, after long-term use, when the protective sleeve 3 is damaged, the fixing rod 7 can be pulled out from the fixing hole and the round hole 6 by holding the connecting circular plate 8 by hand, then one end of the inserting plate 4 is pulled out from the inside of the inserting groove 5, at the moment, the protective sleeve 3 can be taken down from the first main body 1, then a new protective sleeve 3 is sleeved outside the first main body 1, the clamping block 9 arranged on the inner side wall of the protective sleeve is inserted into the clamping groove 16, wherein the magnetic sheet 20 arranged at the lower end of the clamping block 9 can be well adsorbed at the bottom end inside the clamping groove 16, so that the clamping block 9 is more stably clamped inside the clamping groove 16, further, the protective sleeve 3 can be well fixed on the first main body 1, and then one end of the inserting plate 4 is inserted into the inserting groove 5, and one end of a fixing rod 7 penetrates through the round hole 6 and is inserted into the fixing hole, and the two ends of the new protective sleeve 3 can be connected together, so that the new protective sleeve 3 is installed outside the main body I1, and the protective sleeve 3 damaged by long-term use can be conveniently replaced by a worker.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a multistage formula hollow shaft, includes main part one (1) and main part two (2), its characterized in that, a plurality of internal keyway (10) of group have all been seted up to main part one (1) and main part two (2) inside wall, main part one (1) and main part two (2) outside are provided with protection mechanism (19), be provided with coupling mechanism (18) between main part one (1) and main part two (2).

2. The multi-section hollow shaft according to claim 1, wherein the protection mechanism (19) comprises a protection sleeve (3), one side of the protection sleeve (3) is connected with a plug board (4), the other side of the protection sleeve is provided with a slot (5) matched with the plug board (4), the inner side wall of the protection sleeve (3) is connected with a clamping block (9), and the outer parts of the first main body (1) and the second main body (2) are provided with clamping grooves (16) matched with the clamping block (9).

3. The multi-section hollow shaft according to claim 2, wherein a magnetic sheet (20) is mounted at one end of the fixture block (9), a round hole (6) is formed through the outer side surface of the protective sleeve (3) near one side of the outer side surface, a fixing rod (7) is inserted into the round hole (6), one end of the fixing rod (7) is fixedly provided with a connecting circular plate (8), and a fixing hole matched with the fixing rod (7) is formed in the outer side surface of the inserting plate (4).

4. The multi-section hollow shaft according to claim 1, wherein the connecting mechanism (18) comprises a jack (11), a movable groove (17) is formed in the inner side wall of the jack (11), a screw rod (12) is inserted into the jack (11), a nut (13) is installed in the movable groove (17), and a plurality of groups of screw holes (15) are formed in one side of the first main body (1) at equal intervals.

5. The multi-section hollow shaft according to claim 4, wherein a square groove (14) is formed on the outer side surface of the second main body (2) near one side, one side of the nut (13) is movably arranged inside the square groove (14), one end of the screw (12) penetrates through the nut (13) and the other end thereof is movably arranged with the first main body (1) through the screw hole (15).

6. The multi-section hollow shaft according to claim 5, wherein the outer side of the screw (12) is provided with a plurality of first screw threads, the inner side wall of the nut (13) is provided with a plurality of second screw threads, the first screw threads are matched with the second screw threads, and the first main body (1) is movably mounted with the second main body (2) through the nut (13) and the screw (12) matched with the screw hole (15).