CN218538832U - Mechanical air expansion shaft - Google Patents

Abstract

The utility model belongs to the technical field of the axle that rises for the coiling equipment and specifically relates to a mechanical type inflatable shaft is related to, include, cylinder barrel closes the piece, return spring, the piece unit that rises, lock ring spring, multistage conical surface apical axis closes the piece, main shaft, outside end holder and air cock fixed end cover, processing has one end to seal other end open-ended cavity on cylinder barrel closes the piece, and return spring installs the blind end in the cavity, installs the main shaft in the cavity of cylinder barrel closes the piece, and the equipartition is seted up the direction mounting groove that the piece unit mount was risen in the adaptation on main shaft and cylinder barrel closes the piece, the utility model discloses a mechanical type inflatable shaft need not to install the gasbag, adopts general cylinder structure can realize using the operation function promptly, compares in the axle that rises of gasbag formula, the utility model discloses not have high expectations to the production material technology, and make the degree of difficulty low, has reduced the manufacturing threshold that rises the axle to general processing enterprise.

Description

Mechanical type inflatable shaft

Technical Field

The utility model relates to a coiling equipment is with axle field that rises especially relates to a mechanical type inflatable shaft.

Background

The inflatable shaft is a special winding and unwinding shaft, the surface of which can be protruded after being inflated by high pressure, and the surface of which can be retracted quickly after being deflated, the name of the inflatable shaft is various, and the inflatable shaft is also called as an air pressure shaft, an expansion shaft, an inflation roller, an inflation shaft, a pressure shaft, an inflation roller and the like. The inflatable shaft adopted in the current market adopts the structural design of the surface mosaic key of the internal air bag inflation ejection shaft, and the structure has the following defects and shortcomings:

firstly, the air bag type expansion shaft structure has short stroke when in use, limited expansion height and insufficient expansion force, the expansion shaft can jump when wound after expansion to cause uneven winding, a paper core cylinder is required to be added when in use to ensure the use requirement of even winding, and the air bag type expansion shaft structure cannot be specially matched with automatic reel changing and winding of a paper core-free cylinder;

secondly, the air bag has general maintainability, once air leakage occurs, the user side can not be maintained in time, and the air bag needs to be returned to a manufacturer for maintenance, so that the air bag is not suitable for use occasions with small-batch purposes.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mechanical type inflatable shaft, its overall structure design science, the power of expanding when using is sufficient, the height range of rising is big, need not to install the gasbag and increase the refill section of thick bamboo, can guarantee the winding homogeneity of the axle rolling that rises, the manufacturing assembly technology can be competent for general manufacturing enterprise, have the assembly simply, the convenient characteristics of maintenance; in order to realize the purpose, the utility model adopts the following technical scheme:

a mechanical air expansion shaft comprises a cylinder barrel assembly, a return spring, an expansion block unit, a hoop spring, a multistage conical surface jacking shaft assembly, a main shaft, an external end seat and an air nozzle fixing end cover, wherein a cavity with one end closed and the other end open is processed on the cylinder barrel assembly, the return spring is installed at the closed end in the cavity, the main shaft is installed in the cavity of the cylinder barrel assembly, guide installation grooves matched with the expansion block unit are uniformly formed in the main shaft and the cylinder barrel assembly, the lower side of the expansion block unit is installed in the guide installation grooves and movably contacted with the guide installation grooves, an installation space for installing the multistage conical surface jacking shaft assembly is formed in the main shaft, the multistage conical surface jacking shaft assembly is movably installed in the installation space formed in the main shaft, the inner side end of the multistage conical surface jacking shaft assembly is contacted with the return spring, the external end seat is installed at the opening end position of the cylinder barrel assembly and presses the multistage jacking shaft assembly in the main shaft installation space, the air nozzle fixing end cover is installed on the external end seat, and the hoop spring is installed at the external position of the expansion block unit and the bottom surface is attached to the external contact of the multistage conical surface jacking shaft assembly together.

The cylinder barrel assembly comprises a cylinder barrel body and a mounting flange plate, wherein a mounting flange is mounted on a winding machine through a fastening bolt, the inner side end of the cylinder barrel body is mounted on the mounting flange plate and fixedly connected with the mounting flange plate into a whole, a cavity is formed in the cylinder barrel body, a spring mounting hole matched with a return spring is formed in the middle of the inner side of the mounting flange plate, the return spring is mounted in the spring mounting hole, and a guide mounting groove is formed in the cylinder barrel body.

The expansion block unit comprises an expansion block body, a sliding block body and a fastening bolt, wherein a yielding groove is formed in the lower side of the sliding block body, contact wedge faces are formed in the positions of the two sides of the yielding groove, the lower side of the sliding block body is assembled in a guide mounting groove and is in movable contact with the inner wall of the guide mounting groove, an arc-shaped groove matched with a tightening spring is formed in the upper portion of the sliding block body, and the expansion block body is installed at the top of the sliding block body and is installed together with the sliding block body through the fastening bolt.

The multistage conical surface jacking shaft assembly comprises a multistage conical surface jacking shaft body, a cylinder piston and a sealing ring, wherein the multistage conical surface jacking shaft body is assembled in an installation space formed in a main shaft, the inner side end of the multistage conical surface jacking shaft body is in contact with a return spring, the cylinder piston is installed at the outer side end of the multistage conical surface jacking shaft body and is fastened with the multistage conical surface jacking shaft body through a fastening bolt, an annular groove matched with the installation of the sealing ring is machined in the outer circle of the cylinder piston, the sealing ring is installed in the annular groove, the cylinder piston is in sealing contact with the inner wall of a cylinder barrel body through the sealing ring, six groups of conical surface bodies are arranged on the multistage conical surface jacking shaft body, and the outer conical surface of each conical surface is in sliding contact with a contact wedge surface at the bottom of an expansion block body.

Furthermore, the main shaft and the cylinder barrel assembly on the same vertical section are uniformly provided with at least two groups of guide mounting grooves matched with the expansion block units for installation, the expansion block units are assembled in the guide mounting grooves, each expansion block unit is connected through a tightening spring, and each expansion block unit is always in sliding contact with the outer conical surface of the conical surface body through the contact wedge surface at the bottom of the expansion block body under the tightening elastic action of the tightening spring.

Furthermore, two groups of arc-shaped grooves matched with the tightening springs are formed in the upper portion of the sliding block body.

Furthermore, an inflating nozzle is installed at the center of the air nozzle fixing end cover and is externally connected with an air source, and an external air source can enter the cylinder barrel body through the inflating nozzle and push the cylinder piston to drive the multistage conical surface top shaft body to move in the cylinder barrel body.

The utility model has the advantages that: the utility model discloses an overall structure design science of mechanical type inflatable shaft has following technical characterstic and advantage with current inflatable shaft relatively:

1. the mechanical air expansion shaft has large expansion height range and sufficient expansion force, the expansion block unit can form a stable standard cylindrical structure after expansion, compared with the air bag type expansion shaft, the winding shaft can ensure that the winding object has uniform stress during winding and winding without using a paper core cylinder, cannot jump and ensures the winding quality;

2. the mechanical air expansion shaft of the utility model has scientific structural design, can realize production and manufacture by adopting common production processes such as welding, heat treatment, machining and the like during production and processing, and can be manufactured and assembled by adopting the common production processes of general technical factories;

3. the utility model discloses a mechanical type inflatable shaft's maintainability is good, in case the service failure takes place in the use, need not return the producer, can carry out timely maintenance at the user side and maintain.

Drawings

Fig. 1 is a first schematic view of a mounting assembly of the mechanical air expansion shaft of the present invention;

fig. 2 is a second schematic view of the installation assembly structure of the mechanical air expansion shaft of the present invention;

fig. 3 is a cross-sectional schematic view of the mechanical air-expansion shaft of the present invention;

fig. 4 is a schematic cross-sectional view of the mechanical air-expansion shaft of the present invention;

fig. 5 is a schematic view of the mechanical air expansion shaft of the present invention in a partial sectional view;

fig. 6 is a schematic structural view of the cylinder barrel assembly of the present invention;

fig. 7 is a schematic structural diagram of a single expansion block unit in the present invention;

fig. 8 is a schematic diagram of the layout structure of a set of expansion block units in the present invention;

FIG. 9 is a schematic structural view of the multi-stage conical top-shaft assembly of the present invention;

FIG. 10 is a schematic view of the whole half-section structure of the mechanical air-expanding shaft of the present invention;

the reference numbers in the figures are: 1-cylinder barrel assembly, 2-return spring, 3-, 4-hoop spring, 5-multistage conical surface top shaft assembly, 6-main shaft, 7-external end seat, 8-air nozzle fixing end cover, 9-guide mounting groove, 10-air charging nozzle, 11-cylinder barrel body, 12-mounting flange, 13-spring mounting hole, 31-expansion block body, 32-sliding block body, 33-abdicating groove, 34-contact wedge surface, 35-arc groove, 51-multistage conical surface top shaft body, 52-cylinder piston, 53-sealing ring, 54-conical surface body, A-contact wedge surface and conical surface body contact surface, B-sliding block body and guide mounting groove contact surface, and C- 'Y' -shaped spacing groove.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is further described in detail below with reference to the drawings and the detailed description of the specification, and it should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly or indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this specification to denote orientation are used with reference to a particular structure shown in the drawings, and do not constitute a limitation on the structure.

Specific example 1: as shown in the attached drawings 1, 2, 3 and 4 of the specification, the mechanical air expansion shaft provided by the utility model mainly comprises a cylinder barrel assembly 1, a return spring 2, an expansion block unit 3, a hoop spring 4, a multi-stage conical surface top shaft assembly 5, a main shaft 6, an external end seat 7 and an air nozzle fixing end cover 8, wherein a cavity with one end closed and the other end open is processed on the cylinder barrel assembly 1, the return spring 2 for pushing the multi-stage conical surface top shaft assembly 5 to return is arranged at the closed end in the cavity, the main shaft 6 is arranged in the cavity of the cylinder barrel assembly 1, the main shaft 6 is used for guiding the multi-stage conical surface top shaft assembly 5, as shown in the attached drawing 4 of the specification, six groups of guide mounting grooves 9 matched with the expansion block unit 3 are arranged on the same section (Z-direction space section) on the main shaft 6 and the cylinder barrel assembly 1, the six groups of guide mounting grooves 9 are all provided with the expansion block units 3, the lower sides of the expansion block units 3 are arranged in the guide mounting grooves 9 and are movably contacted with the guide mounting grooves 9, when in installation, as shown in the specification attached figure 4, the specification attached figure 9 and the specification attached figure 3, the tightening springs 4 are arranged at the positions of the arc-shaped grooves 35 on the sliding block bodies 32 in the expansion block units 3, the expansion block units 3 are connected through the tightening springs 4, the expansion block units 3 are always in sliding contact with the outer conical surface of the conical surface body 54 through the contact wedge surfaces 34 at the bottoms of the expansion block bodies 31 under the tightening elastic force action of the tightening springs 4, the main shaft 6 is internally provided with an installation space for installing the multistage conical surface top shaft assembly 5, the multistage top shaft assembly 5 which is matched with the expansion block units 3 and realizes expansion and retraction of the conical surface of the expansion block units 3 is movably arranged in the installation space arranged in the main shaft 6, and the inner side end of the multistage top shaft assembly 5 is movably arranged in the main shaft assembly 5 With return spring 2 contact, outside end seat 7 is installed in the open end position of cylinder barrel assembly 1 and with multistage conical surface apical axis assembly 5 pressure equipment in main shaft 6 installation space, installs air cock fixed end cover 8 on outside end seat 7, installs charging connector 10 at the central point of air cock fixed end cover 8 position, the external air supply of charging connector 10, outside air supply accessible charging connector 10 gets into in the cylinder barrel body 11 and promotes cylinder piston 52 and drive multistage conical surface apical axis body 51 and remove in cylinder barrel body 11.

See the utility model provides a specification figure 6 is shown, a cylinder barrel closes piece 1 for carrying out the assembly to return spring 2 and main shaft 6 includes, cylinder barrel body 11 and mounting flange 12, wherein, mounting flange passes through fastening bolt and installs on the rolling machine externally, the medial extremity of cylinder barrel body 11 is installed on mounting flange 12 and links firmly as an organic wholely with mounting flange 12, a cavity for joining in marriage main shaft 6 is seted up on cylinder barrel body 11, the department sets up the spring mounting hole 13 of adaptation in the installation of return spring 2 in the middle of mounting flange 12's inboard, spring mounting hole 13 can install the position of return spring 2 and prescribe a limit, install in spring mounting hole 13 return spring 2's medial extremity, it has the direction mounting groove 9 of adaptation expansion block unit 3 installation to process on cylinder barrel body 11.

See the utility model provides a specification figure 7 is shown, the piece unit 3 that rises that directly realizes the tight operation that rises to the material book includes, the piece body 31 that rises, slider body 32 and fastening bolt, wherein, set up the recess 33 of stepping down at slider body 32's downside, the recess 33 of stepping down can step down to the conical surface body 54 on the multistage conical surface apical axis body 51, set up the contact wedge face 34 with conical surface body 54 external cone face sliding contact in the both sides position of recess 33 of stepping down, slider body 32's downside assembly in direction mounting groove 9 and with direction mounting groove 9 inner wall movable contact, set up the arc recess 35 of adaptation lock hoop spring 4 installation on slider body 32's upper portion, the piece body 31 that rises is installed at slider body 32's top position and is in the same place through fastening bolt and slider body 32 installation.

Referring to the drawings in the specification of the present invention, as shown in fig. 9, a multistage conical surface ejecting shaft assembly 5 for cooperating with an expanding block unit 3 to realize expanding operation includes a multistage conical surface ejecting shaft body 51, a cylinder piston 52 and a sealing ring 53, wherein the multistage conical surface ejecting shaft body 51 is used for cooperating with the expanding block unit 3 to realize expanding and retracting of the expanding block unit 3, the multistage conical surface ejecting shaft body 51 is assembled in an installation space provided in a main shaft 6 and can reciprocate in the installation space, an inner side end of the multistage conical surface ejecting shaft body 51 is in contact with a return spring 2, the cylinder piston 52 is installed at an outer side end of the multistage conical surface ejecting shaft body 51 and fastened with the multistage conical surface ejecting shaft body 51 through a fastening bolt, a ring groove adapted to the installation of the sealing ring 53 is processed on an outer circle of the cylinder piston 52, the ring groove 53 is installed in the cylinder, the cylinder piston 52 is in sealing contact with an inner wall of the cylinder body 11 through the sealing ring 53 during installation, a conical surface 54 directly adapted with a conical surface of the expanding block unit 3 is provided on the multistage conical surface ejecting shaft body 51, wherein the expanding block unit 54 is in contact with an outer surface of the expanding block 34.

The utility model discloses an installation and the working process of mechanical type inflatable shaft when specifically installing and using as follows: firstly, the operator can install the return spring 2 in the position of the spring mounting hole 13 in the cylinder assembly 1, assemble the main shaft 6 in the cavity in the cylinder assembly 1, then, the operator can assemble the multi-level conical surface top shaft body 51 in the multi-level conical surface top shaft assembly 5 in the mounting space for mounting the multi-level conical surface top shaft assembly 5 opened on the main shaft 6, the cylinder piston 52 is fastened with the multi-level conical surface top shaft body 51 into a whole through the fastening bolt, install the sealing ring 53 in the ring groove on the cylinder piston 52, during the installation, the cylinder piston 52 is in sealing contact with the inner wall of the cylinder body 11 through the sealing ring 53, then, the operator can install the outer end seat 7 in the opening end position of the cylinder assembly 1 and press-mount the multi-level conical surface top shaft assembly 5 in the mounting space of the main shaft 6, install the air nozzle fixing end cover 8 on the outer end seat 7, install the air nozzle 10 in the center position of the air nozzle fixing end cover 8, the air nozzle 10 is externally connected with the air source, after the installation, the operator can insert the lower side of the slider 32 in the mounting groove of the air cylinder assembly 32, the slider 32 in the whole mounting structure of the air cylinder assembly, the air cylinder assembly 32, the slider can be mounted on the air cylinder head 4, the slider in the air-pressing device, the utility model discloses a mechanical type inflatable shaft can divide into to expand when using and return two kinds of operating condition that contract, specifically as follows:

1. the process of the expansion state is as follows: an operator can control an external pneumatic control valve to open, at the moment, external air enters a cavity on the outer side of a cylinder piston 52 in a cylinder barrel assembly 1 through an inflating nozzle 10 and pushes the cylinder piston 52 to move towards one side close to a return spring 2, the cylinder piston 52 can push a multistage conical surface jacking shaft body 51 to compress the return spring 2 in a main shaft 6, at the moment, a conical surface body 54 on the multistage conical surface jacking shaft body 51 can open a slider body 32 and an expansion block body 31 to the periphery of the cylinder barrel assembly 1 through the contact wedge surface 34, and at the moment, a tightening spring 4 for tightening the expansion block unit 3 is in a stretching state, so that the expansion state of the expansion block unit 3 can be realized; it should be pointed out that the utility model discloses an axle structure that rises can be specially joined in marriage the automatic reel change winding that does not have a refill section of thick bamboo, is in the state of opening that rises, is formed with the spacer groove (see description attached figure 2) between the piece unit 3 that rises of left side position, the piece unit 3 that rises of middle part and the piece unit 3 that rises of right side position on the cylinder barrel assembly 1, the spacer groove be "Y" font structure, the spacer groove of "Y" font structure can guarantee when the contact of winding thing and the epaxial piece unit 3 that rises, there is the contact point all the time between winding thing and the epaxial piece unit 3 that rises, and then satisfies the initial contact of winding thing and the epaxial piece unit 3 that rises.

2. The retraction state process is as follows: the steerable outside gas accuse valve of operating personnel is closed, at this moment, outside gas can't get into the air compression driving force that the cavity produced cylinder piston 52 outside, this moment, return spring 2 return promotes multistage conical surface apical axis body 51 return in main shaft 6, conical surface body 54 on the multistage conical surface apical axis body 51 loses the driving force to the slider body 32 in the piece unit 3 that rises, simultaneously, the outside lock ring spring 4 return that is in slider body 32 can be with driving slider body 32 and the piece body 31 that rises to the axle center direction of multistage conical surface apical axis in direction mounting groove 9 and retract, to this, the utility model discloses can realize the piece unit 3 that rises's the state that contracts. The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims (7)

1. A mechanical air expansion shaft is characterized by comprising a cylinder barrel assembly (1), a return spring (2), an expansion block unit (3), a hoop spring (4), a multistage conical surface top shaft assembly (5), a main shaft (6), an external end seat (7) and an air nozzle fixing end cover (8), wherein a cavity with one end closed and the other end open is processed on the cylinder barrel assembly (1), the return spring (2) is installed at the closed end in the cavity, the main shaft (6) is installed in the cavity of the cylinder barrel assembly (1), guide installation grooves (9) matched with the expansion block unit (3) are uniformly distributed on the main shaft (6) and the cylinder barrel assembly (1), the lower side of the expansion block unit (3) is installed in the guide installation grooves (9) and is in movable contact with the guide installation grooves (9), an installation space for installing the multistage conical surface top shaft assembly (5) is arranged in the main shaft (6), the inner side end of the multistage conical surface top shaft assembly (5) is in contact with the inner end seat of the air nozzle fixing end cover (8) of the air nozzle fixing end cover (7), the air cylinder barrel assembly (1) is installed in the position of the movable press-mounting end seat, the tightening spring (4) is arranged at the outer position of the expansion block unit (3) and attaches the bottom surface of the expansion block unit (3) to the outer contact surface of the multistage conical surface top shaft assembly (5).

2. The mechanical air expansion shaft according to claim 1, wherein the cylinder barrel assembly (1) comprises a cylinder barrel body (11) and a mounting flange (12), the mounting flange is mounted on the winding machine through a fastening bolt, the inner side end of the cylinder barrel body (11) is mounted on the mounting flange (12) and fixedly connected with the mounting flange (12) into a whole, the cavity is formed in the cylinder barrel body (11), a spring mounting hole (13) matched with the return spring (2) is formed in the middle of the inner side of the mounting flange (12), the return spring (2) is mounted in the spring mounting hole (13), and a guide mounting groove (9) is formed in the cylinder barrel body (11).

3. The mechanical air expansion shaft according to claim 2, wherein the expansion block unit (3) comprises an expansion block body (31), a slider body (32) and a fastening bolt, a yielding groove (33) is formed in the lower side of the slider body (32), contact wedge surfaces (34) are formed in two sides of the yielding groove (33), the lower side of the slider body (32) is assembled in the guide mounting groove (9) and movably contacted with the inner wall of the guide mounting groove (9), an arc-shaped groove (35) matched with the tightening spring (4) is formed in the upper portion of the slider body (32), and the expansion block body (31) is installed at the top of the slider body (32) and is installed together with the slider body (32) through the fastening bolt.

4. The mechanical air expanding shaft according to claim 3, wherein the multi-stage conical surface top shaft assembly (5) comprises a multi-stage conical surface top shaft body (51), a cylinder piston (52) and a sealing ring (53), the multi-stage conical surface top shaft body (51) is assembled in an installation space formed in the main shaft (6), the inner side end of the multi-stage conical surface top shaft body (51) is in contact with the return spring (2), the cylinder piston (52) is installed at the outer side end of the multi-stage conical surface top shaft body (51) and is fastened with the multi-stage conical surface top shaft body (51) through a fastening bolt, a ring groove matched with the installation of the sealing ring (53) is machined in the outer circle of the cylinder piston (52), the sealing ring (53) is installed in the ring groove, the cylinder piston (52) is in sealing contact with the inner wall of the cylinder barrel body (11) through the sealing ring (53), six sets of conical surface bodies (54) are arranged on the multi-stage top shaft body (51), and the outer conical surface of the conical surface body (54) is in sliding contact with the contact wedge surface (34) at the bottom of the expanding block body (31).

5. The mechanical air expansion shaft according to claim 4, further comprising guide mounting grooves (9) uniformly formed in the main shaft (6) and the cylinder barrel assembly (1) on the same vertical section, wherein at least two sets of guide mounting grooves (9) are adapted to the expansion block units (3), the expansion block units (3) are mounted in each set of guide mounting grooves (9), each expansion block unit (3) is connected through the tightening spring (4), and each expansion block unit (3) is in sliding contact with the outer conical surface of the conical surface body (54) through the contact wedge surface (34) at the bottom of the expansion block body (31) under the tightening elastic force of the tightening spring (4).

6. The mechanical air expansion shaft as claimed in claim 3, further comprising two sets of arc-shaped grooves (35) disposed on the upper portion of the slider body (32) and adapted to the tightening spring (4).

7. The mechanical air expansion shaft as claimed in claim 4, further comprising an air charging connector (10) installed at a central position of the air nozzle fixing end cover (8), wherein the air charging connector (10) is externally connected with an air source, and the external air source can enter the cylinder barrel body (11) through the air charging connector (10) and push the cylinder piston (52) to drive the multistage conical top shaft body (51) to move in the cylinder barrel body (11).

Images