CN114180393B

CN114180393B - Full-automatic paying-off machine capable of preventing stranded wires from being knotted

Info

Publication number: CN114180393B
Application number: CN202111363618.0A
Authority: CN
Inventors: 叶小平
Original assignee: Jiangsu Fuchuan Electrical & Mechanical Co ltd
Current assignee: Jiangsu Fuchuan Electrical & Mechanical Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2023-05-09
Anticipated expiration: 2041-11-17
Also published as: CN114180393A

Abstract

The invention discloses a full-automatic paying-off machine for preventing stranded wires from being knotted, which relates to the technical field of paying-off machines, in particular to a full-automatic paying-off machine for preventing stranded wires from being knotted. This prevent full-automatic paying out machine that stranded conductor was tied a knot through the inner chamber on carriage right side through bearing suit internal fixation piece, makes the right side of carriage connect interior lag, and the outside activity suit outer lag on interior lag right side makes the right side of carriage connect reset spring, makes the inner chamber suit electromagnetic block of fixed frame, stops the unwrapping wire when using after, utilizes the cooperation of spliced pole and external fixation piece, conveniently makes the connecting rod in time stop, avoids letting out unnecessary cable, leads to the cable conductor stranded conductor to tie a knot.

Description

Full-automatic paying-off machine capable of preventing stranded wires from being knotted

Technical Field

The invention relates to the technical field of paying-off machines, in particular to a full-automatic paying-off machine capable of preventing stranded wires from being knotted.

Background

The paying-off machine is wire and cable auxiliary equipment matched with a stranding machine and used for paying off, and generally can be divided into an active untwisting paying-off machine, a vertical power paying-off machine, a double-shaft multi-head wire drawing disc active paying-off machine, a shaftless paying-off machine and the like.

When the cable wire needs the unwrapping wire, can use the unwrapping wire machine to cooperate the supplementary unwrapping wire generally, in the course of the work of unwrapping wire machine, if required cable is enough to use, generally rely on stopping the motor, control unwrapping wire machine stops the unwrapping wire, but the wrapping post can continue rotatory one section cable of giving out owing to inertia, longer cable exposes in the outside, easily lead to the stranded conductor of cable wire to tie a knot, and the outside cable wire of single wrapping post has put the follow-up wrapping post of renewing when using, this in-process is loaded down with trivial details, influence the operating speed of device, for this reason, we propose a full-automatic unwrapping wire machine that prevents the stranded conductor and tie a knot.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a full-automatic paying-off machine for preventing stranded wires from being knotted, and solves the problems in the prior art.

In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a prevent full-automatic paying out machine that stranded conductor was tied knot, includes bottom plate and connecting rod, the top fixed mounting of bottom plate has the carriage, the left side fixedly connected with driving motor of carriage, the inner chamber of carriage left and right sides wall is equipped with the spliced pole through the bearing housing, the right side the right-hand member fixedly connected with internal fixation piece of spliced pole, four bracing pieces of right side fixedly connected with of carriage, the right-hand member fixedly connected with fixed frame of bracing piece, the inner chamber movable sleeve of fixed frame has the electromagnetism piece, the top fixedly connected with power supply wire of electromagnetism piece, four the outside movable sleeve of bracing piece is equipped with the arm-tie, the right side fixedly connected with pulling plate of arm-tie, the left side fixedly connected with outer lag of arm-tie, the right side fixedly connected with internal fixation of carriage, the right side fixedly connected with reset spring of carriage.

Optionally, the rear side movable sleeve of carriage top surface is equipped with three screw thread post, screw thread post's top fixed mounting has the knob, screw thread post's bottom fixedly connected with connecting block, the bottom of connecting block is connected with support spring through the bearing, the connecting plate is installed to support spring's bottom, the below fixed mounting of connecting plate has the support cover, the outside movable sleeve of support cover is equipped with the wire wheel.

Optionally, two the inboard fixedly connected with outer adapter sleeve of rotation post, the inboard left end movable sleeve of outer adapter sleeve is equipped with the inner adapter sleeve, the left side fixedly connected with go-between of inner adapter sleeve, the inner chamber fixedly connected with connecting spring of outer adapter sleeve, the left and right sides end fixedly connected with connecting gear of connecting rod, the spread groove has been seted up to the inner chamber of outer adapter sleeve, the outside fixed cover of inner adapter sleeve is equipped with the connecting strip.

Optionally, the fixed frame is parallel with the arm-tie about each other, outside at the interior lag right-hand member of outer lag movable sleeve, reset spring's right-hand member and the left side fixed connection of arm-tie, reset spring's the inner chamber that is located outer lag.

Optionally, the left side fixedly connected with external fixation piece of arm-tie, the fixed slot of adaptation internal fixation piece has been seted up to the left side of external fixation piece, the outside of external fixation piece activity suit internal fixation piece.

Optionally, the height value of the wire guiding wheel in the middle is lower than that of the front wire guiding wheel and the rear wire guiding wheel, and the front wire guiding wheel and the rear wire guiding wheel are parallel.

Optionally, spread groove and connecting strip mutually adapt, the outside at the connecting strip is overlapped to the spread groove activity, the left end of connecting spring and the inner chamber fixed connection of connecting strip.

Optionally, tooth grooves and teeth which are matched with the outer parts of the connecting gears are formed on the inner sides of the connecting rings, and the connecting rings are movably sleeved on the outer parts of the connecting gears.

The invention provides a full-automatic paying-off machine for preventing stranded wires from being knotted, which has the following beneficial effects:

1. this prevent full-automatic paying out machine that stranded conductor was tied knot through the inner chamber on carriage right side through bearing suit internal fixation piece, makes the right side fixed mounting rotation post of internal fixation piece, at the right side joint support pole of carriage, makes the right-hand member fixed connection fixed frame of bracing piece, makes the right side of carriage connect interior lag, and the outside activity suit outer lag on lag right side, makes reset spring is connected on the right side of carriage, makes the inner chamber suit electromagnetic block of fixed frame, and after stopping the unwrapping wire when using, utilizes the cooperation of rotation post and external fixation piece, makes the connecting rod stop in time conveniently, avoids paying out unnecessary cable, leads to the cable conductor to tie a knot.

2. This prevent full-automatic paying out machine that stranded conductor was tied knot through the rear side activity suit screw thread post in the carriage top, makes the top connection knob of screw thread post, installs the connecting block in the bottom of screw thread post, makes the bottom of connecting block pass through the bearing and connects supporting spring, installs connecting plate and support cover and wire wheel in the bottom of supporting spring, and the cooperation through three wire wheel when using makes the cable conductor be in the tight state, avoids the cable conductor to loosen and leads to its articulated.

3. This prevent full-automatic paying out machine that stranded conductor was tied knot through the inboard fixed connection outer adapter sleeve at the spliced pole, makes the inner chamber of outer adapter sleeve offer the spread groove, installs connecting spring in the left side of spread groove, makes the left movable suit inner joint cover of spread groove, and the outside fixed suit connecting strip of inner adapter sleeve makes the outside fixed suit go-between of inner joint cover left side, installs connecting gear about the connecting rod, makes the inner chamber of go-between offer the tooth's socket of adaptation connecting gear, conveniently through the cooperation quick replacement connecting rod of go-between and connecting spring.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

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

FIG. 3 is a schematic view of the connection structure of the external fixing block of the present invention;

FIG. 4 is a schematic diagram of a wire guide of the present invention;

FIG. 5 is a schematic view of the structure of the connecting ring of the present invention.

In the figure: 1. a bottom plate; 2. a support frame; 3. a driving motor; 4. rotating the column; 5. an inner fixing block; 6. a support rod; 7. an inner protective sleeve; 8. a return spring; 9. an outer protective sleeve; 10. pulling a plate; 11. a traction plate; 12. a fixed frame; 13. an electromagnetic block; 14. a power supply wire; 15. a threaded column; 16. a rotary knob; 17. a connecting block; 18. a support spring; 19. a connecting plate; 20. a support sleeve; 21. a wire guide wheel; 22. an outer connecting sleeve; 23. a connecting groove; 24. a connecting spring; 25. an inner connecting sleeve; 26. a connecting strip; 27. a connecting ring; 28. a connecting gear; 29. a connecting rod; 30. and an outer fixing block.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a prevent full-automatic paying out machine that stranded conductor was tied knot, including bottom plate 1 and connecting rod 29, the top fixed mounting of bottom plate 1 has braced frame 2, the left side fixedly connected with driving motor 3 of braced frame 2, the inner chamber of braced frame 2 left and right walls is equipped with slewing post 4 through the bearing bush, driving motor 3 and slewing post 4's setting plays the effect that conveniently drives connecting rod 29 pivoted, conveniently drive slewing post 4 through driving motor 3's output shaft and rotate, slewing post 4 drives go-between 27 and connecting gear 28 and connecting rod 29 through outer adapter sleeve 22 and interior adapter sleeve 25 and rotates, the use of convenient device, the right-hand member fixedly connected with internal fixation piece 5 of right side slewing post 4, the right side fixedly connected with of braced frame 2 is four bracing pieces 6, fixed frame 12 is fixed to the right-hand member of bracing piece 6, fixed frame 12 and arm-tie 10 are about being parallel to each other, the setting of fixed frame 12 and arm-tie 10, when in use, the position of the external fixed block 30 is conveniently controlled, the external protective sleeve 9 can only move left and right in parallel by the restriction of the pull plate 10 and the support rod 6, the external fixed block 30 is prevented from being driven to rotate by the rotating column 4, the external fixed block 30 plays a role of locking the rotating column 4, overlong paying-off can be effectively avoided, the stranded wires at the wire end are led to be knotted, the external protective sleeve 9 is movably sleeved outside the right end of the internal protective sleeve 7, the right end of the reset spring 8 is fixedly connected with the left side of the pull plate 10, the reset spring 8 is positioned in the inner cavity of the external protective sleeve 9, the reset spring 8 plays a role of resetting, the driving motor 3 is controlled to stop, the fixed frame 12 is controlled to be powered off, the driving motor 3 can not drive the rotating column 4 to rotate, the electromagnetic block 13 is not provided with magnetism, the traction plate 11 and the electromagnetic block 13 are not attached, then the pull plate 10 can move leftwards under the action of the reset spring 8, the pull plate 10 is used for pushing the outer fixed block 30 to move leftwards, the outer fixed block 30 is used for moving to the outside of the inner fixed block 5, the outer fixed block 30 is used for fixing the inner fixed block 5, locking of the inner fixed block 5 is completed, the rotating column 4 is static, the paying-off of the device is stopped immediately, the electromagnetic block 13 is movably sleeved in the inner cavity of the fixed frame 12, the power supply wires 14 are fixedly connected above the electromagnetic block 13, the pull plate 10 is movably sleeved outside the four support rods 6, the outer fixed block 30 is fixedly connected to the left side of the pull plate 10, the power supply wires 14 are supplied with power, the electromagnetic block 13 is provided with magnetism, the electromagnetic block 13 is used for adsorbing the traction plate 11 outwards, the traction plate 11 is used for driving the pull plate 10 to move rightwards, the pull plate 10 is used for pulling the outer fixed block 30 to move outwards, the outer fixed block 30 is separated from the outer side of the inner fixed block 5, the rotating column 4 can pay-off normally, the fixed slot of adaptation internal fixation piece 5 has been seted up in the left side of external fixation piece 30, the outside of internal fixation piece 5 is offered to external fixation piece 30 movable sleeve, the right side fixedly connected with pulling plate 11 of pulling plate 10, the left side fixedly connected with outer lag 9 of pulling plate 10, the setting of outer lag 9 and internal protection cover 7 conveniently protects reset spring 8, the setting of bracing piece 6 plays the direction of movement of restriction pulling plate 10 simultaneously, avoid pulling plate 10 to rotate, the right side fixedly connected with internal protection cover 7 of braced frame 2, the right side fixedly connected with reset spring 8 of braced frame 2, pulling plate 11 plays the effect of pulling plate 10, conveniently drive pulling plate 10 and move rightwards under the effect of electromagnetic block 13, make pulling plate 10 pulling external fixation piece 30 and internal fixation piece 5 separate, make internal fixation piece 5 rotatable.

Referring to fig. 4, three screw columns 15 are movably sleeved on the rear side of the top surface of the supporting frame 2, a rotary knob 16 is fixedly mounted above the screw columns 15, a connecting block 17 is fixedly connected to the bottom of the screw columns 15, friction lines are formed on the outer sides of the screw columns 15 and the rotary knob 16 and the connecting block 17, the screw holes for adapting the screw columns 15 are formed on the top of the right side of the supporting frame 2, lifting of the screw columns 15 is facilitated, the bottom of the connecting block 17 is connected with the supporting spring 18 through a bearing, a connecting plate 19 is mounted on the bottom of the supporting spring 18, a supporting sleeve 20 is fixedly mounted below the connecting plate 19, a wire wheel 21 is movably sleeved on the outer side of the supporting sleeve 20, the rotary knob 16 is rotated, the screw columns 16 drive the screw columns 15 to rotate on the top of an inner cavity of the supporting frame 2, the screw columns 15 move downwards in the supporting frame 2, the screw columns 15 push the connecting block 17 to move downwards, the supporting spring 18 pushes the connecting plate 19 and the wire wheel 21 to move downwards, the wire wheel 21 conveniently, the wire wheel 21 is pulled down, the wire cable wire 21 is pulled down from the cable wire 21 is pulled down by the cable wire 21, and the cable wire 21 is prevented from being pulled down, and the cable wire 21 is prevented from being parallel to the front of the cable wire 21.

Referring to fig. 5, the inner sides of the two rotating columns 4 are fixedly connected with an outer connecting sleeve 22, the left end of the inner side of the outer connecting sleeve 22 is movably sleeved with an inner connecting sleeve 25, the left side of the inner connecting sleeve 25 is fixedly connected with a connecting ring 27, the inner side of the connecting ring 27 is provided with tooth grooves adapted to the outer part of a connecting gear 28, the connecting ring 27 is movably sleeved outside the connecting gear 28, the connecting ring 27 is held by a hand, the connecting ring 27 is pressed outwards, the connecting ring 27 drives the inner connecting sleeve 25 to move towards the inner cavity of the outer connecting sleeve 22, meanwhile, a connecting bar 26 moves to the inner cavity of a connecting groove 23, a connecting spring 24 is in a compressed state, then a connecting rod 29 and the connecting gear 28 are removed, the connecting rod 29 and the connecting gear 28 are conveniently removed to replace the connecting gear 28 and the connecting rod 29, the connecting spring 24 is fixedly connected with the inner cavity of the outer connecting sleeve 22, the left end and the right end of the connecting rod 29 are fixedly connected with a connecting gear 28, the inner cavity of the outer connecting sleeve 22 is provided with a connecting groove 23, the outer part of the inner connecting sleeve 25 is fixedly sleeved with a connecting strip 26, a new connecting rod 29 and the connecting gear 28 are placed between the two connecting rings 27, then the connecting rings 27 are loosened, the connecting springs 24 can push the connecting rings 27 to move towards the middle part of the supporting frame 2, the connecting rings 27 move to the outer part of the connecting gear 28, then the connecting rings 27 drive the connecting gear 28 to rotate through tooth grooves and teeth, the connecting rod 29 is convenient to replace, the connecting rod 29 is convenient to drive to rotate, the connecting groove 23 and the connecting strip 26 are mutually matched, the connecting groove 23 is movably sleeved outside the connecting strip 26, the left end of the connecting springs 24 is fixedly connected with the inner cavity of the connecting strip 26, the output shaft of the driving motor 3 drives the rotating column 4 to rotate, and the rotating column 4 drives the outer connecting sleeve 22 to rotate, the rotation of the outer connecting sleeve 22 drives the inner connecting sleeve 25 to rotate through the cooperation of the connecting groove 23 and the connecting strip 26, and then the inner connecting sleeve 25 drives the connecting ring 27 to rotate, so that the outer connecting sleeve 22 conveniently drives the inner connecting sleeve 25 to rotate.

In summary, when the full-automatic paying-off machine for preventing the stranded wires from being knotted is used, firstly, the rotary knob 16 is rotated, the rotary knob 16 drives the threaded column 15 to rotate at the top of the inner cavity of the supporting frame 2, the threaded column 15 moves downwards in the supporting frame 2, the threaded column 15 pushes the connecting block 17 to move downwards, the connecting block 17 pushes the supporting spring 18 to move downwards, then the supporting spring 18 pushes the connecting plate 19 and the supporting sleeve 20 to move downwards with the wire guide wheel 21, then the middle wire guide wheel 21 is arranged below a cable coil, the front wire guide wheel 21 and the rear wire guide wheel 21 are arranged above the cable coil, the cable is led to bypass the front wire guide wheel 21 from the upper side of the front wire guide wheel 21, then bypass the lower side of the middle wire guide wheel 21 and be pulled outwards from the upper side of the rear wire guide wheel 21, then the driving motor 3 is controlled to start, and simultaneously the power supply wire 14 is supplied, the electromagnetic block 13 is provided with magnetism, the electromagnetic block 13 is used for adsorbing the traction plate 11 outwards, the traction plate 11 is used for driving the traction plate 10 to move rightwards, the traction plate 10 is used for pulling the outer fixed block 30 to move outwards, the outer fixed block 30 is separated from the outer side of the inner fixed block 5, the output shaft of the driving motor 3 is used for driving the rotating column 4 to rotate, the rotating column 4 is used for driving the outer connecting sleeve 22 to rotate, the inner connecting sleeve 25 is driven to rotate through the matching of the connecting groove 23 and the connecting strip 26 by the rotation of the outer connecting sleeve 22, then the inner connecting sleeve 25 is used for driving the connecting ring 27 to rotate, the connecting ring 27 is used for driving the connecting rod 29 to rotate through the tooth socket for paying off, then after paying off to a proper length value, the driving motor 3 is controlled to stop, meanwhile, the fixed frame 12 is controlled to be powered off, the driving motor 3 is not used for driving the rotating column 4 to rotate, meanwhile, the electromagnetic block 13 is not provided with magnetism, the traction plate 11 and the electromagnetic block 13 are not attached any more, then the traction plate 10 moves leftwards under the action of the reset spring 8, the pulling plate 10 is used for pushing the outer fixing block 30 to move leftwards, the outer fixing block 30 is used for moving to the outside of the inner fixing block 5, the outer fixing block 30 is used for fixing the inner fixing block 5, the torsion of the rotating column 4 is counteracted through the supporting rod 6, when the connecting rod 29 needs to be replaced, the connecting ring 27 is pressed outwards through holding the connecting ring 27, the connecting ring 27 drives the inner connecting sleeve 25 to move towards the inner cavity of the outer connecting sleeve 22, meanwhile, the connecting strip 26 moves to the inner cavity of the connecting groove 23, the connecting spring 24 is in a compressed state, then the connecting rod 29 and the connecting gear 28 are removed, a new connecting rod 29 and the connecting gear 28 are placed between the two connecting rings 27, then the connecting ring 27 is loosened, the connecting spring 24 can be used for pushing the connecting ring 27 to move towards the middle of the supporting frame 2, the connecting ring 27 moves to the outside of the connecting gear 28, and then the connecting ring 27 drives the connecting gear 28 to rotate through a tooth socket and a tooth.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a prevent full-automatic paying out machine that stranded conductor was tied knot, includes bottom plate (1) and connecting rod (29), its characterized in that: the utility model discloses a power supply device, including bottom plate (1), supporting frame (2), driving motor (3) are fixedly connected with in the top of bottom plate (1), the inner chamber of wall is controlled to supporting frame (2) is equipped with through the bearing housing and rotates post (4), right side the right-hand member fixedly connected with internal fixation piece (5) of post (4), four bracing pieces (6) are fixedly connected with on the right side of supporting frame (2), the right-hand member fixedly connected with fixed frame (12) of bracing piece (6), the inner chamber movable sleeve of fixed frame (12) is equipped with electromagnetism piece (13), the top fixedly connected with power supply wire (14) of electromagnetism piece (13), four the outside movable sleeve of bracing piece (6) is equipped with arm-tie (10), the right side fixedly connected with traction plate (11) of arm-tie (10), the left side fixedly connected with outer lag (9) of arm-tie (10), the right side fixedly connected with internal fixation piece (7) of supporting frame (2), the right side fixedly connected with internal fixation piece (2) has fixed frame (12), the top fixedly connected with spring (25) of two outside fixedly connected with (25) of connecting sleeve (22), the inner cavity fixedly connected with connecting spring (24) of outer adapter sleeve (22), the left and right ends fixedly connected with connecting gear (28) of connecting rod (29), spread groove (23) have been seted up to the inner chamber of outer adapter sleeve (22), the outside fixed cover of interior adapter sleeve (25) is equipped with connecting strip (26), the mutual adaptation of spread groove (23) and connecting strip (26), outside at connecting strip (26) of spread groove (23) movable sleeve, the left end and the inner cavity fixed connection of connecting strip (26) of connecting spring (24).

2. The full-automatic paying-off machine for preventing stranded wires from being knotted according to claim 1, wherein the paying-off machine is characterized in that: the rear side movable sleeve of carriage (2) top surface is equipped with three screw thread post (15), the top fixed mounting of screw thread post (15) has knob (16), the bottom fixedly connected with connecting block (17) of screw thread post (15), the bottom of connecting block (17) is connected with supporting spring (18) through the bearing, connecting plate (19) are installed to the bottom of supporting spring (18), the below fixed mounting of connecting plate (19) has support sleeve (20), the outside movable sleeve of support sleeve (20) is equipped with wire wheel (21).

3. The full-automatic paying-off machine for preventing stranded wires from being knotted according to claim 1, wherein the paying-off machine is characterized in that: the fixing frame (12) is parallel to the pulling plate (10) left and right sides, the outer protecting sleeve (9) is movably sleeved outside the right end of the inner protecting sleeve (7), the right end of the reset spring (8) is fixedly connected with the left side of the pulling plate (10), and the reset spring (8) is located in an inner cavity of the outer protecting sleeve (9).

4. The full-automatic paying-off machine for preventing stranded wires from being knotted according to claim 1, wherein the paying-off machine is characterized in that: the left side fixedly connected with external fixation piece (30) of arm-tie (10), the fixed slot of adaptation internal fixation piece (5) has been seted up in the left side of external fixation piece (30), the outside of internal fixation piece (5) is suit to external fixation piece (30) activity.

5. The full-automatic paying-off machine for preventing stranded wires from being knotted according to claim 2, wherein: the height value of the middle wire guide wheel (21) is lower than that of the front wire guide wheel and the rear wire guide wheel (21), and the three wire guide wheels (21) are parallel to each other front and rear.

6. The full-automatic paying-off machine for preventing stranded wires from being knotted according to claim 1, wherein the paying-off machine is characterized in that: tooth grooves and teeth which are matched with the outer parts of the connecting gears (28) are formed in the inner sides of the connecting rings (27), and the connecting rings (27) are movably sleeved on the outer parts of the connecting gears (28).