CN218110637U - Steel bushing dismounting mechanism for CV lifter overload protection device - Google Patents

Abstract

The utility model discloses a steel bushing dismouting mechanism for CV lifting mechanism overload protection device, CV lifting mechanism overload protection device include the connecting rod and inlay the steel bushing of locating the connecting rod, and steel bushing dismouting mechanism includes: the positioning part is concavely provided with a clamping groove on at least one end surface along the first direction, and the clamping groove is used for being clamped with the connecting rod; the positioning part is also provided with a through hole extending along the first direction; the pull rod is provided with a clamping part at one end and comprises a thread section, and the thread section extends to the other end of the pull rod along the axial direction of the pull rod; the nut is used for being in threaded connection with the thread section; the outer diameter of the pull rod is smaller than the inner diameter of the steel sleeve, the maximum outer diameter of the clamping portion is larger than the inner diameter of the steel sleeve, and the outer diameter of the steel sleeve is smaller than the aperture of the through hole, so that the pull rod can drive the steel sleeve to move from one end of the through hole to the other end of the through hole along the first direction. The utility model discloses save time, laborsaving effect when can realizing the steel bushing dismouting, and the connecting rod is difficult for taking place to warp, can guarantee assembly quality.

Description

Steel bushing dismounting mechanism for CV lifter overload protection device

Technical Field

The utility model relates to a special extracting tool field, in particular to steel bushing dismouting mechanism that is used for CV lifting mechanism overload protection device.

Background

The YB95 carton cellophane paper packaging machine (also called CV) is a packaging machine set for performing the last process of cigarette packaging. During the operation of the equipment, the lifter can generate channel blockage or mechanical overload phenomenon, so the overload protection device 1 is usually matched and arranged.

The structure of the overload protection device 1 is shown in figure 1, and comprises a transmission arm 11, a connecting rod 12, an elastic sheet 15, a pressing block 16, a steel sleeve 17, a steel ball 14 sleeve 13 and a steel ball 14, wherein the steel ball 14 sleeve 13 is embedded in the transmission arm 11, and the steel ball is installed in a hole of the steel ball 14 sleeve 13 and is fixed by the pressing plate and the pressing block 16. The steel sleeve 17 is arranged in the connecting rod 12, the connecting rod 12 is embedded in a groove of the transmission arm 11, one end of the connecting rod 12 is hinged with the transmission arm 11 (not shown), the steel sleeve 17 of the connecting rod 12 is in contact with the steel ball 14, and the steel ball 14 fixes the connecting rod 12 through the steel sleeve 17. When the lifter is blocked in a lifting process or is overloaded mechanically, the connecting rod 12 overcomes the pressure of the steel ball and is separated from the transmission arm 11, and then the microswitch is triggered to stop the equipment, so that the protection effect is achieved.

After the connecting rod 12 and the transmission arm 11 are frequently disengaged and reset, the steel ball 14 frequently rubs against the steel sleeve 17 embedded on the connecting rod 12 to cause abrasion of the steel sleeve 17, and the abrasion of the steel sleeve 17 causes relative displacement of the connection between the connecting rod 12 and the transmission arm 11, so that the transmission precision of the lifter is influenced, and the problems that the cigarette carton is not lifted in place to damage equipment or unqualified cigarette carton transparent paper folding forming is caused are easily caused. Therefore, the steel sleeve 17 needs to be replaced regularly, and the connecting rod 12 is usually detached and placed on the bench clamp to be detached and installed by using a copper rod and the like, so that the connecting rod is easy to deform, the assembly quality is influenced or the loss of parts is caused, the time is long, and the normal production of cigarettes is influenced. Meanwhile, the assembly and disassembly difficulty is high due to the fact that the number of parts assembled at the position is large, the structure is relatively complex, and the operation space is small.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve YB95 barrel cellophane packagine machine lifting mechanism overload protection device's steel bushing dismouting difficulty, easily lead to the connecting rod to warp the problem that influences assembly quality. The utility model provides a steel bushing dismouting mechanism for CV lifting mechanism overload protection device can save time, laborsaving when realizing the steel bushing dismouting, and reaches the effect that the connecting rod is difficult for taking place to warp.

In order to solve the technical problem, the utility model discloses an embodiment discloses a steel bushing dismouting mechanism for CV riser overload protection device, CV riser overload protection device includes the connecting rod and inlays the steel bushing of locating the connecting rod, and steel bushing dismouting mechanism includes:

the positioning part is concavely provided with a clamping groove along at least one end face in the first direction, and the clamping groove is used for being clamped with the connecting rod; the positioning part is also provided with a through hole extending along the first direction;

the pull rod is provided with a clamping part at one end and comprises a thread section, and the thread section extends to the other end of the pull rod along the axial direction of the pull rod;

a nut for screwing with the thread section;

the outer diameter of the pull rod is smaller than the inner diameter of the steel sleeve, the maximum outer diameter of the clamping portion is larger than the inner diameter of the steel sleeve, and the outer diameter of the steel sleeve is smaller than the aperture of the through hole, so that the pull rod can drive the steel sleeve to move from one end of the through hole to the other end of the through hole along the first direction.

By adopting the technical scheme, the positioning part can be clamped with the connecting rod through the clamping groove, and the whole dismounting mechanism is relatively fixed with the position of the connecting rod, so that the through hole corresponds to the position of the inner hole of the steel sleeve. The pull rod can run through steel bushing and through-hole, and joint portion can prevent that the steel bushing from deviating from the pull rod with steel bushing looks joint, and the screw thread section of pull rod is stretched out by the other end of through-hole. After the nut is screwed into the threaded section extending out of the through hole and screwed to the position contacting with the positioning part, the nut is continuously rotated, the pull rod is driven to move in the through hole through the screw connection with the threaded section, and the steel sleeve is driven to move by the pull rod, so that the steel sleeve is unloaded from or loaded into the connecting rod of the overload protection device. The steel sleeve is time-saving and labor-saving in the dismounting process, the connecting rod is not easy to deform, and the assembling quality is ensured.

As a specific embodiment, the maximum outer diameter of the clamping part is smaller than the outer diameter of the steel sleeve.

As a specific implementation mode, the clamping part is detachably connected with the pull rod.

As a specific embodiment, the clamping part comprises a dismounting clamping part and an installation clamping part, the maximum outer diameter of the dismounting clamping part is smaller than the outer diameter of the steel sleeve, the maximum outer diameter of the installation clamping part is larger than the outer diameter of the steel sleeve, and the maximum outer diameter of the installation clamping part is larger than the aperture of the through hole;

the installation joint portion includes the bead that a plurality of protrusion pull rod surfaces set up, and a plurality of beads set up along the circumference interval of pull rod.

In one embodiment, the clamping portion is in a straight shape.

As a specific implementation manner, the inner wall of the through hole is concavely provided with a stepping notch extending along the first direction, and the stepping notch corresponds to the convex edge one by one, so that the mounting clamping portion can move in the stepping notch along the first direction.

As a specific implementation mode, the depth and the width of the clamping groove are matched with the thickness and the width of the connecting rod.

As a specific implementation manner, the two end faces of the positioning portion along the first direction are both provided with a clamping groove.

As a specific implementation manner, the slot penetrates along the second direction, and the first direction and the second direction are perpendicular to each other.

Drawings

Fig. 1 shows the structure of an overload protection device of a lift of a cellophane packaging machine according to an embodiment of the present invention;

FIG. 2 is a schematic overall structure diagram of a steel jacket dismounting mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a positioning part of a steel sleeve dismounting mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic view of the steel sleeve of the embodiment of the invention when being disassembled;

FIG. 5 is a schematic view of a steel sleeve according to an embodiment of the present invention;

in the figure:

1-overload protection device, 11-transmission arm, 12-connecting rod, 13-steel ball sleeve, 14-steel ball, 15-spring, 16-pressing block and 17-steel sleeve;

2-a steel sleeve dismounting mechanism, 21-a positioning part, 211-a first clamping groove, 212-a second clamping groove, 213-a through hole, 214-a abdicating notch, 22-a pull rod, 221-a clamping part, 222-a thread section and 23-a nut.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the present embodiment can be understood as specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The embodiment of the utility model discloses a steel bushing 17 dismouting mechanism for CV riser overload protection device 1, CV riser overload protection device 1 that wherein relates to includes connecting rod 12 and inlays the steel bushing 17 of locating connecting rod 12 (as shown in figure 1). Referring to fig. 2 and 3, the steel sleeve attachment and detachment mechanism 2 includes a positioning portion 21, a tie rod 22, and a nut 23. At least one end surface of the positioning portion 21 along the first direction (as shown in X direction in fig. 2) is concavely provided with a locking groove, and the locking groove is used for being locked with the connecting rod 12 of the overload protection apparatus 1. Specifically, a slot is formed through in the second direction (shown by the direction Y in fig. 2 and 3), and the depth and width of the slot are adapted to the thickness and width of the connecting rod 12, so that the positioning portion 21 can be engaged with the connecting rod 12 to position the entire steel sleeve attachment/detachment mechanism 2. Wherein the first direction and the second direction are perpendicular to each other. Furthermore, the positioning portion 21 is further provided with a through hole 213 extending along the first direction, and the middle through hole 213 prevents the steel sleeve 17 from shifting during detachment and installation.

With continued reference to fig. 2, one end of the pull rod 22 along the axial direction thereof is provided with a clamping portion 221, and the pull rod 22 further includes a threaded section 222, wherein the threaded section 222 extends to the other end of the pull rod 22 along the axial direction of the pull rod 22. The nut 23 is adapted to be threadedly engaged with the threaded section 222. Wherein, the outer diameter of the pull rod 22 is smaller than the inner diameter of the steel sleeve 17, so that the pull rod 22 can pass through the inner hole of the steel sleeve 17. That is, the steel sleeve 17 can be fitted over the tie rod 22. The maximum outer diameter of the clamping portion 221 is larger than the inner diameter of the steel sleeve 17, that is, the steel sleeve 17 can be sleeved in from the threaded section 222 of the pull rod 22 and can be blocked by the clamping portion 221, so that the steel sleeve 17 is prevented from sliding out from the end of the pull rod 22 where the clamping portion is arranged. Further, the bore diameter of the through hole 213 of the positioning portion 21 is larger than the outer diameter of the steel sleeve 17 so that the steel sleeve 17 can be accommodated within the steel sleeve 17.

By adopting the technical scheme, the positioning part 21 can be clamped with the connecting rod 12 through the clamping groove, and the whole dismounting and the relative fixation of the position of the connecting rod lead the through hole 213 to correspond to the position of the inner hole of the steel sleeve 17. In the first direction, the pull rod 22 can penetrate through the steel sleeve 17 and the through hole 213, the clamping portion 221 is in contact with the steel sleeve 17 and clamps the end face of the steel sleeve 17, and the threaded section 222 of the pull rod 22 extends out of the other end of the through hole 213. After the nut 23 is screwed into the threaded section 222 extending out of the through hole 213 and is screwed to the position contacting with the positioning part 21, the nut 23 is further rotated, the pull rod 22 is driven to move in the through hole 213 by screwing with the threaded section 222, and the steel sleeve 17 is driven to move by the pull rod 22, so that the steel sleeve 17 is unloaded from the connecting rod 12 of the overload protection device 1 or loaded into the connecting rod 12. Therefore, the effect of dismounting the steel sleeve 17 in a time-saving and labor-saving manner is realized, the connecting rod 12 is not easy to deform in the dismounting process, and the assembling quality is ensured.

In one embodiment, the maximum outer diameter of the clamping portion 221 is smaller than the outer diameter of the steel sleeve 17, which can be used for both the removal and installation of the steel sleeve 17. In this embodiment, after the pull rod 22 is inserted into the inner hole of the sleeve, the clamping portion 221 is clamped between the inner wall and the outer wall of the steel sleeve 17. Illustratively, the locking portion 221 is a cylinder or a cone disposed at the end of the pull rod 22, or includes a plurality of ribs radially protruding from the surface of the pull rod 22, and the ribs are circumferentially spaced on the surface of the pull rod 22. Or the snap-in portion 221 may be of other shapes that resist removal of the steel sleeve 17 from that end.

In another embodiment, the clamping portion 221 is detachably connected to the pull rod 22, and the clamping portion 221 includes a detachable clamping portion and an installation clamping portion, which are respectively suitable for detaching and installing the steel sleeve 17. Wherein, as mentioned above, the maximum outer diameter of the detachable clamping part is smaller than the outer diameter of the steel sleeve 17. The maximum outer diameter of the mounting clip portion is larger than the outer diameter of the steel sleeve 17, and the maximum outer diameter of the clip portion 221 is larger than the aperture of the through hole 213. Further, installation joint portion includes a plurality of fins that the surface of protruding pull rod 22 set up, and a plurality of fins are along the circumference interval setting of pull rod 22. Correspondingly, the inner wall of the through hole 213 is concavely provided with a yielding notch 214 (as shown in fig. 2 and 3) extending along the first direction, the clamping notch corresponds to the rib of the clamping portion 221, and the clamping portion 221 can move in the yielding notch 214. When the nut 22 is used, the clamping portion 221 is located in the corresponding yielding notch 214, and the rotation of the pull rod 22 along the circumferential direction can be limited through the yielding notch 214 by the arrangement, so that the pull rod 22 can move along the axial direction along with the rotation of the nut 23.

Illustratively, the engaging portion 221 is in a straight shape, that is, the engaging portion 221 includes two ribs, and the two ribs are connected in a radial direction (as shown in fig. 2 and 4).

Referring to fig. 2 and 3, exemplarily, two end surfaces of the positioning portion 21 in the first direction are provided with card slots, i.e., a first card slot 211 and a second card slot 212. So set up, need not to distinguish the direction when location portion 21 of being convenient for uses, arbitrary one side all can carry out the joint and use. In another embodiment, the positioning part 21 includes only one latching groove (as shown in fig. 5, the positioning part 21 is provided with only one latching groove).

When the steel sleeve 17 needs to be replaced in use, the pressing block 16 and the elastic sheet 15 are firstly detached, and the steel ball 14 is taken down, so that the connecting rod 12 is separated from the transmission arm 11. Referring to fig. 4, when the steel bushing 17 is disassembled by using the mechanism for disassembling and assembling the steel bushing 17 of the present embodiment, the fixing block contacts with the position of the connecting rod 12 where the steel bushing 17 is installed through the slot, so that the through hole 213 is aligned with the inner hole of the steel bushing 17. And then the threaded section 222 of the pull rod 22 penetrates through the inner hole of the steel sleeve 17 and then penetrates out of the through hole 213 of the fixed block, and the positioning part 21 of the pull rod 22 is clamped with the steel sleeve 17. The nut 23 is screwed into the threaded section 222 to a position in contact with the end surface of the positioning portion 21. And continuing to rotate the nut 23 to enable the pull rod 22 to drive the steel sleeve 17 to move axially until the steel sleeve 17 is pulled out of the connecting rod 12, thus completing the disassembly of the steel sleeve 17.

Referring to fig. 5, when the steel bushing 17 is installed, the positioning portion 21 is clamped with a position, where the steel bushing 17 needs to be installed, on the connecting rod 12 through the clamping groove, the steel bushing 17 is sleeved on the pull rod 22 and contacts with the positioning portion 21, then the threaded section 222 of the pull rod 22 penetrates through the through hole 213 of the fixed block and the hole, where the steel bushing 17 is installed, on the connecting rod 12, at this time, the steel bushing 17 is located in the through hole 213, and the through hole 213 can provide limiting and guiding for the steel bushing 17. The nut 23 is screwed into the threaded section 222 to a position in contact with the end surface of the positioning portion 21, and then the nut 23 is turned by a wrench to make the pull rod 22 drive the steel sleeve 17 to move along the axial direction (i.e. the first direction) of the through hole until the steel sleeve 17 is installed in the connecting rod 12, thus completing the installation of the steel sleeve 17.

When the steel sleeve 17 is installed, if the installation clamping portion is adopted (the maximum outer diameter of the installation clamping portion is larger than the aperture of the through hole 213), when the pull rod 22 and the steel sleeve 17 penetrate through the through hole 213 of the fixing block, the positioning portion 21 on the pull rod 22 is aligned with the abdicating notch 214 in the through hole 213, the abdicating notch 214 plays a role of abdicating the positioning portion 21, meanwhile, the abdicating notch 214 can also play a role of limiting the pull rod 22 to rotate along the circumferential direction of the nut 23, and the pull rod 22 can be driven to move along the axial direction (i.e. the first direction) of the through hole when the nut 23 is rotated conveniently.

The application of the technical scheme of the embodiment enables the steel bushing to be time-saving and labor-saving in dismounting and mounting, solves the problems of difficult dismounting and mounting and maintenance of the original connecting rod steel bushing and the like, and also ensures the assembling quality of the steel bushing. Meanwhile, the maintenance and disassembly time of the steel sleeve is reduced to 30 minutes from 180 minutes of the original disassembly and assembly mode (because the steel sleeve and the connecting rod are in interference fit, the disassembly is difficult and the time is long, and about 180 minutes is needed), the problem that the maintenance is long is solved, and the effective operation rate of the equipment is improved.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the invention, and it is not intended to limit the invention to the specific embodiments described. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (9)

1. The utility model provides a steel bushing dismouting mechanism for CV riser overload protection device, CV riser overload protection device includes the connecting rod and inlays to be located the steel bushing of connecting rod, its characterized in that, steel bushing dismouting mechanism includes:

the positioning part is concavely provided with a clamping groove along at least one end face in the first direction, and the clamping groove is used for being clamped with the connecting rod; the positioning part is also provided with a through hole extending along the first direction;

the pull rod is provided with a clamping part at one end and comprises a thread section, and the thread section extends to the other end of the pull rod along the axial direction of the pull rod;

a nut for threadably engaging the threaded section;

the outer diameter of the pull rod is smaller than the inner diameter of the steel sleeve, the maximum outer diameter of the clamping portion is larger than the inner diameter of the steel sleeve, and the outer diameter of the steel sleeve is smaller than the aperture of the through hole, so that the pull rod can drive the steel sleeve to move from one end of the through hole to the other end of the through hole along the first direction.

2. The steel sleeve disassembly and assembly mechanism of claim 1, wherein the maximum outer diameter of the clamping portion is smaller than the outer diameter of the steel sleeve.

3. The steel casing disassembly and assembly mechanism of claim 1, wherein the clamping portion is detachably connected with the pulling rod.

4. The steel sleeve disassembly and assembly mechanism according to claim 3, wherein the clamping portion comprises a disassembly clamping portion and an installation clamping portion, the maximum outer diameter of the disassembly clamping portion is smaller than the outer diameter of the steel sleeve, the maximum outer diameter of the installation clamping portion is larger than the outer diameter of the steel sleeve, and the maximum outer diameter of the installation clamping portion is larger than the bore diameter of the through hole;

the installation clamping portion comprises a plurality of protruding ribs protruding from the surface of the pull rod, and the protruding ribs are arranged along the circumferential direction of the pull rod at intervals.

5. The steel casing disassembly and assembly mechanism of claim 4, wherein the clamping portion is in-line.

6. The steel bushing dismounting mechanism according to claim 4 or 5, wherein the inner wall of the through hole is concavely provided with a relief notch extending along the first direction, and the relief notch corresponds to the protruding rib one to one, so that the mounting clamping portion can move in the relief notch along the first direction.

7. The steel sleeve dismounting mechanism according to claim 1, wherein the depth and width of the slot are adapted to the thickness and width of the link.

8. The steel sleeve disassembly and assembly mechanism according to claim 1, wherein the catching grooves are provided on both end faces of the positioning portion in the first direction.

9. The steel sleeve dismounting mechanism according to claim 1 or 8, wherein the slot is through in a second direction, and the first direction and the second direction are perpendicular to each other.

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