CN217755943U - Distance changing mechanism capable of locking - Google Patents

Distance changing mechanism capable of locking Download PDF

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Publication number
CN217755943U
CN217755943U CN202222134772.7U CN202222134772U CN217755943U CN 217755943 U CN217755943 U CN 217755943U CN 202222134772 U CN202222134772 U CN 202222134772U CN 217755943 U CN217755943 U CN 217755943U
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China
Prior art keywords
mounting seat
transmission shaft
cable
lockable
bobbin
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CN202222134772.7U
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Chinese (zh)
Inventor
张洪波
李磊
王美玲
岳亮亮
孟丹
李露
叶晓东
孔令成
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Hefei Institutes of Physical Science of CAS
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Hefei Institutes of Physical Science of CAS
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Priority to CN202222134772.7U priority Critical patent/CN217755943U/en
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Abstract

The utility model discloses a lockable variable pitch mechanism, which comprises a mounting seat component, a transmission shaft component and a guy cable component; the mounting seat assembly comprises a mounting seat, a winding drum and an electromagnetic clutch, connecting shafts at the left end and the right end of the winding drum are respectively rotatably mounted on the mounting seat, the braking or releasing of the connecting shafts is realized by electrifying or powering off the electromagnetic clutch, and a slide way is further arranged on the mounting seat; the transmission shaft assembly comprises a transmission shaft, the transmission shaft is in sliding fit with the slideway of the mounting seat and can slide back and forth in the slideway, two cable bases are arranged on the transmission shaft and are respectively positioned on the front side and the rear side of the winding drum; the inhaul cable assembly comprises an inhaul cable, the middle section of the inhaul cable is wound on the winding drum, and two ends of the inhaul cable are connected with the two inhaul cable bases respectively. Compared with the prior art, the utility model has the following advantages: the automatic flexible switching of the variable pitch and the locking is realized, and the problem that the stacking machine head shakes is effectively solved when the automatic flexible switching is used for stacking equipment.

Description

Distance changing mechanism capable of locking
Technical Field
The utility model relates to the technical field of mechanical equipment, what especially relate to is a can lock displacement mechanism.
Background
In the automatic stacking and loading process of bagged materials, the bagged materials are conveyed to a stacking machine head sequentially through a horizontal conveying belt and an inclined conveying belt, and stacking and loading are achieved after the stacking machine head processes the bagged materials. The concrete structure of its whole set of pile up neatly equipment sets up to: the horizontal conveying belt extends along the front-back direction, the horizontal conveying belt is installed on a horizontal conveying belt rack, the front end of the inclined conveying belt extends obliquely downwards, the inclined conveying belt is installed on an inclined conveying belt rack, the rear end of the inclined conveying belt rack is hinged to the horizontal conveying belt rack, the front end of the inclined conveying belt rack is hinged to a stacker head, the stacker head is suspended in the air by an electric hoist installed on a headstock, the horizontal conveying belt rack and the headstock are both arranged on a rail extending along the front-back direction in a sliding mode, the headstock moves back and forth along the rail to drive the whole stacking equipment to move back and forth, and stacking sequencing of material columns can be achieved through back and forth movement of the stacker head; the electric hoist drives the stacking machine head to lift, and stacking sequencing of the material layers can be achieved.
Among the existing equipment, there is not direct rigid connection structure between headstock and the horizontal conveyer belt frame between the two, both realize indirect connection through hanging in midair the pile up neatly aircraft nose that sets up and slope conveyer belt frame, because between pile up neatly aircraft nose and the headstock, between pile up neatly aircraft nose and the slope conveyer belt frame, and all be swing joint between slope conveyer belt frame and the horizontal conveyer belt frame, when pile up neatly aircraft nose goes up and down or when the headstock back-and-forth movement along with, pile up neatly aircraft nose and slope conveyer belt frame can produce and rock, the rocking of pile up neatly aircraft nose, can produce the influence to the loading precision, still can produce environmental protection problems such as extra dust, thereby also can lead to the part fatigue damage because rock for a long time and lead to the pile up neatly aircraft nose to have the risk that drops.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a but locking displacement mechanism, uses it to connect the headstock and the horizontal conveyer belt frame of pile up neatly equipment to effectively solve and rock a series of problems that lead to because of the pile up neatly aircraft nose.
The utility model discloses a realize through following technical scheme:
a lockable pitch-changing mechanism comprises a mounting seat assembly, a transmission shaft assembly and a inhaul cable assembly;
the mounting seat assembly comprises a mounting seat, a bobbin and electromagnetic clutches, the axis of the bobbin extends along the left and right directions, connecting shafts are arranged at the left and right ends of the bobbin respectively, the connecting shafts at the left and right ends of the bobbin are rotatably mounted on the mounting seat respectively, at least one electromagnetic clutch is mounted on the mounting seat, an inner hole of each electromagnetic clutch is fixedly connected with the connecting shaft of the bobbin, the connection shafts are braked or released by electrifying or powering off the electromagnetic clutches, and a slide way extending along the front and rear directions is further arranged on the mounting seat;
the transmission shaft assembly comprises a transmission shaft, the transmission shaft is in sliding fit with the slide way of the mounting seat, the transmission shaft can slide back and forth in the slide way, two cable bases are arranged on the transmission shaft, and the two cable bases are respectively positioned on the front side and the rear side of the winding drum;
the inhaul cable assembly comprises an inhaul cable, the middle section of the inhaul cable is wound on the bobbin, and two ends of the inhaul cable respectively extend out of the front end and the rear end of the bobbin and are respectively connected with the two inhaul cable bases.
As a preferred scheme of the above mechanism, the slide on the mounting seat is composed of a front slide frame and a rear slide frame, each slide frame is a rectangular frame surrounded by four carrier rollers, namely an upper carrier roller, a lower carrier roller, a left carrier roller and a right carrier roller, two ends of each carrier roller are rotatably mounted on the mounting seat, the transmission shafts are sequentially arranged in the two slide frames in a sliding and penetrating manner, and the transmission shafts are in rolling fit with the carrier rollers of each slide frame.
As a preferable scheme of the mechanism, the mounting base is a rectangular frame surrounded by a bottom plate, a left side plate, a right side plate and a top plate, connecting shafts at the left end and the right end of the winding drum are respectively rotatably mounted on the left side plate and the right side plate, and the electromagnetic clutch is mounted on the outer side of the left side plate or the right side plate.
As a preferred scheme of the above mechanism, the front end and the rear end of the bottom plate protrude out of the front end and the rear end of the two side plates respectively, the two slide way frames are arranged at the front end and the rear end of the two side plates respectively, the front end and the rear end of the two side plates are respectively provided with an installation plate in a crossing manner, in each slide way frame, the left end and the right end of the upper carrier roller and the lower carrier roller are respectively rotatably installed on the two side plates, the upper ends of the left carrier roller and the right carrier roller are rotatably installed on the installation plates, and the lower ends of the left carrier roller and the right carrier roller are rotatably installed on the bottom plate.
As the preferable scheme of the mechanism, the stay rope base is provided with the suspension bolt, and the end part of the stay rope is connected with the suspension bolt on the stay rope base through the turn buckle.
As a preferred scheme of the mechanism, a transmission shaft connecting plate is fixed at one end of the transmission shaft, the transmission shaft connecting plate is provided with an installation lug, headstock connecting plates are respectively arranged on the left side and the right side of the installation lug, and the two headstock connecting plates are hinged to the installation lug through a pin shaft.
As a preferred scheme of the mechanism, the lockable variable pitch mechanism is used for connecting a horizontal conveyor belt rack and a headstock of the palletizing device, a mounting seat of the lockable variable pitch mechanism is fixedly mounted on the horizontal conveyor belt rack, and two headstock connecting plates of the lockable variable pitch mechanism are fixedly mounted on the headstock.
As the preferable scheme of the mechanism, two electromagnetic clutches are installed on the installation seat, and inner holes of the two electromagnetic clutches are fixedly connected with the two connecting shafts respectively.
Compared with the prior art, the utility model has the following advantages:
the utility model provides a pair of can lock displacement mechanism, it utilizes the cable to convolute on the bobbin, the principle of one end release is convoluteed to one end when the bobbin rotates, cable length change through the bobbin both ends realizes the displacement function, it makes the cable length at bobbin both ends keep unchangeable realization locking function to hold the bobbin tightly simultaneously with electromagnetic clutch circular telegram braking, electromagnetic clutch outage release locking, thereby the automatic nimble switching of displacement and locking has been realized, and simple structure, design benefit, the function is reliable, low in manufacturing cost. When the lockable variable-pitch mechanism is locked and released, the two ends of the inhaul cable can flexibly change the pitch, so that the lifting requirement of the palletizing head can be met, and the interference on the lifting of the palletizing head due to the arrangement of the lockable variable-pitch mechanism can be avoided; when this can lock displacement mechanism locking, realized the rigid connection of headstock and horizontal conveyor frame, effectively prevented that pile up neatly equipment during operation pile up neatly aircraft nose and slope conveyer belt frame from producing and rocking, guaranteed the loading precision of pile up neatly equipment, avoided because of rocking the emergence of the part fatigue damage that leads to and the pile up neatly aircraft nose condition that drops, improved the life of pile up neatly aircraft nose and whole pile up neatly equipment.
Drawings
Fig. 1 is a perspective view of the present embodiment.
Fig. 2 is a perspective view of the mount assembly of the present embodiment.
Fig. 3 is a sectional view of the mount assembly of the present embodiment.
FIG. 4 is a perspective view of the driveshaft assembly of this embodiment.
Fig. 5 is a perspective view of the cable assembly of the present embodiment.
Fig. 6 is a plan view of the present embodiment assembled with a palletising apparatus.
Fig. 7 is a perspective view of the present embodiment assembled with the head frame of the palletising apparatus.
Reference numbers in the figures:
1, a mounting seat assembly, 11 mounting seats, 12 bobbins, 13 electromagnetic clutches, 14 bottom plates, 15 left side plates, 16 right side plates, 17 top plates, 18 connecting shafts, 19 slideway frames, 110 mounting plates, 111 upper carrier rollers, 112 lower carrier rollers, 113 left carrier rollers and 114 right carrier rollers;
2, a transmission shaft assembly, 21, 22 a guy cable base, 23 a transmission shaft connecting plate, 24 an installation lug, 25 a headstock connecting plate, 26 a pin shaft and 27 an elastic retainer ring;
3, a stay cable component, 31 stay cables, 32 eyebolts, 33 turnbuckles, 34 wire rope clamps, 35 front stay cable sections and 36 rear stay cable sections;
4 palletizing equipment, 41 machine head frames, 42 horizontal conveying belt frames, 43 palletizing machine heads, 44 inclined conveying belt frames and 45 electric hoists.
5 tracks.
Detailed Description
The embodiments of the present invention will be described in detail below, and this embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Referring to fig. 1 to 7, the present embodiment discloses a lockable pitch mechanism, which includes a mounting seat assembly 1, a transmission shaft assembly 2, and a cable assembly 3.
The mounting seat assembly 1 comprises a mounting seat 11, a bobbin 12 and electromagnetic clutches 13, the mounting seat 11 is composed of a bottom plate 14, a left side plate 15, a right side plate 16 and a top plate 17 which are enclosed to form a rectangular frame, the axis of the bobbin 12 extends along the left-right direction, connecting shafts 18 are respectively arranged at the left end and the right end of the bobbin 12, the connecting shafts 18 at the left end and the right end of the bobbin 12 are respectively rotatably mounted on the left side plate and the right side plate of the mounting seat 11, at least one electromagnetic clutch 13 is mounted on the mounting seat 11, an inner hole of each electromagnetic clutch 13 is fixedly connected with the connecting shaft 18 of the bobbin 12, in the embodiment, the number of the electromagnetic clutches 13 is two, the two electromagnetic clutches 13 are respectively mounted on the outer sides of the left side plate 15 and the right side plate 16, and inner holes of the two electromagnetic clutches 13 are respectively fixedly connected with the two connecting shafts 18. The connection shaft 18 is braked or released by energizing or de-energizing the electromagnetic clutch 13. The mounting seat 11 is further provided with a slideway extending along the front-rear direction, the slideway on the mounting seat 11 is composed of a front slideway frame and a rear slideway frame 19, each slideway frame 19 is a rectangular frame surrounded by an upper carrier roller, a lower carrier roller, a left carrier roller and a right carrier roller, and two ends of each carrier roller are rotatably mounted on the mounting seat 11. The front end and the rear end of the bottom plate 14 respectively protrude out of the front end and the rear end of the two side plates, the two slide way frames 19 are respectively arranged at the front end and the rear end of the two side plates, the front end and the rear end of the two side plates respectively span the mounting plate 110, the left end and the right end of the upper carrier roller 111 and the lower carrier roller 112 in each slide way frame 19 are respectively rotatably mounted on the left side plate and the right side plate, the upper ends of the left carrier roller 113 and the right carrier roller 114 are rotatably mounted on the mounting plate 110, and the lower ends of the left carrier roller 114 and the right carrier roller 114 are rotatably mounted on the bottom plate 14.
Transmission shaft subassembly 2 includes transmission shaft 21, and transmission shaft 21 and mount pad 11's slide sliding fit, transmission shaft 21 can slide around in the slide, and transmission shaft 21 sets up with the concrete structure of slide: the transmission shaft 21 is sequentially arranged in the two slide way frames 19 in a sliding way, and the transmission shaft 21 is matched with the carrier roller of each slide way frame 19 in a rolling way. Two cable bases 22 are arranged on the transmission shaft 21, and the two cable bases 22 are respectively positioned at the front side and the rear side of the bobbin 12.
The inhaul cable assembly 3 comprises an inhaul cable 31, the inhaul cable 31 is a steel wire rope, the middle section of the inhaul cable 31 is wound on the winding drum 12, and two ends of the inhaul cable 31 extend out of the front end and the rear end of the winding drum 12 respectively and are connected with the two inhaul cable bases 22 respectively. Be equipped with eye bolt 32 on the cable base 22, eye bolt 32's screw thread end and cable base 22's screw hole threaded connection, 31 tip of cable are connected with eye bolt 32 on the cable base 22 through turn buckle 33, and turn buckle 33 is current part, and turn buckle 33's both ends are the link end respectively and the couple end, and concrete connection structure is: the end of the stay 31 passes through the hanging ring end of the turn buckle 33 and is clamped by the wire rope chuck 34, and the hook end of the turn buckle 33 is hooked on the hanging ring of the hanging ring bolt 32. The tightness of the guy cable 31 can be adjusted by the turn buckle 33.
The lockable pitch-changing mechanism provided by the embodiment has the following working principle:
the cable 31 between the cable base 22 and the bobbin 12 at the front end is a cable front section 35, and the cable 31 between the cable base 22 and the bobbin 12 at the rear end is a cable rear section 36. When the transmission shaft assembly 2 slides backwards relative to the mounting seat 11 from front to back, the front cable section 35 is shortened, the rear cable section 36 is extended, the winding reel 12 is driven by the cable 31 to rotate clockwise, when the transmission shaft assembly 2 slides backwards to a required distance, the electromagnetic clutch 13 is electrified and braked, the connecting shaft 18 is locked, and therefore the winding reel 12 is locked, the lengths of the front cable section 35 and the rear cable section 36 are kept unchanged, and the locking function of the transmission shaft assembly 2 relative to the front position and the rear position of the mounting seat 11 is achieved; when the front and rear positions of the transmission shaft assembly 2 relative to the mounting seat 11 need to be changed, the electromagnetic clutch 13 is powered off, the connecting shaft 18 is released, the winding reel 12 can freely rotate, and the transmission shaft assembly 2 can freely slide in the mounting seat 11 in the front and rear directions, so that the pitch changing function is realized.
The lockable pitch mechanism is applied to a palletizing device and is used for connecting a headstock 41 and a horizontal conveying belt rack 42 of the palletizing device. The specific connection structure is as follows:
a transmission shaft connecting plate 23 is fixed at one end of the transmission shaft 21, the transmission shaft connecting plate 23 is provided with an installation lug 24, headstock connecting plates 25 are respectively arranged on the left side and the right side of the installation lug 24, the two headstock connecting plates 25 are hinged on the installation lug 24 through a pin shaft 26, an installation hole of each headstock connecting plate 25 is rotatably installed on the pin shaft 26 through a rolling bearing, and elastic check rings 27 are respectively arranged at two ends of each pin shaft 26 to prevent the two headstock connecting plates 25 from being separated from two ends of each pin shaft 26. The mounting seat 11 of the lockable pitch-varying mechanism is fixedly mounted on the horizontal conveyor belt rack 42, and the two headstock connecting plates 25 of the lockable pitch-varying mechanism are fixedly mounted on the headstock 41.
The lockable pitch-variable mechanism is applied to stacking equipment and has the following functions:
when the lockable pitch mechanism is in the locked state, the headstock 41 is rigidly connected to the horizontal belt frame 42 by the lockable pitch mechanism of this embodiment, and the lockable pitch mechanism plays two roles:
on the one hand, play the drive and pass the power effect, specific process is: the headstock 41 is provided with a driving and braking device, and the driving device of the headstock 41 drives the whole stacking device to move back and forth along the track 5, so that the stacking sequencing of the material columns is realized through the back and forth movement of the stacker head 43; in this process, the headstock 41 transmits the driving force and the braking force to the horizontal belt frame 42 through the lockable pitch mechanism of the present embodiment. Before the present embodiment is applied, the driving force and the braking force of the headstock 41 need to be transmitted to the inclined conveyor belt frame 44 through the palletizer head 43, and then the inclined conveyor belt frame 44 pushes the horizontal conveyor belt frame 42 and the whole palletizing apparatus to realize driving and braking, so that the conditions of shaking and unstable walking are easily caused due to low transmission efficiency.
On the other hand, play the effect of stabilizing pile up neatly aircraft nose 43 and slope conveyer belt frame 44, concrete process is: the electric hoist 45 is arranged in the head frame 41 and used for lifting and lowering the palletizing head 43, so that palletizing sequencing of material layers is realized, when the palletizing head 43 rises or falls, the braking device of the head frame 41 is started, the head frame 41 is braked and does not move, the palletizing head 43 swings around a circle taking the inclined conveying belt frame 44 as a length radius, an angle between the inclined conveying belt frame 44 and the horizontal conveying belt frame 42 changes, so that the front-back distance between the head frame 41 and the horizontal conveying belt frame 42 also changes, and before the distance changing mechanism capable of locking in the embodiment is not additionally arranged, after the palletizing head 43 rises or falls each time, the palletizing head 43 and the inclined conveying belt frame 44 can shake violently due to inertia. After the lockable pitch-varying mechanism of the embodiment is additionally arranged, the locking of the interval between the headstock 41 and the horizontal conveying belt rack 42 according to the requirement can be realized, and after the lifting or descending of the palletizing head 43 is finished, the rigid connection between the headstock 41 and the horizontal conveying belt rack 42 can be realized through immediate locking, so that the palletizing head 43 and the inclined conveying belt rack 44 are kept stable and do not shake.
When the lockable pitch mechanism is in the released condition, the lockable pitch mechanism performs the following functions:
the electric hoist 45 is arranged in the headstock 41 and used for lifting and lowering the palletizing head 43, so that palletizing sequencing of material layers is realized, when the palletizing head 43 rises or falls, the headstock 41 is braked and does not move, the palletizing head 43 swings around a circle taking the inclined conveyor belt rack 44 as a length radius, an angle between the inclined conveyor belt rack 44 and the horizontal conveyor belt rack 42 changes, so that the front-back distance between the headstock 41 and the horizontal conveyor belt rack 42 also changes, at the moment, the distance can be flexibly changed when the headstock is in a release state, so that self-adaptive adjustment can be carried out according to the lifting requirement of the palletizing head 43, interference on the lifting process of the palletizing head 43 due to the arrangement of the lockable distance changing mechanism can be avoided, and normal work of palletizing equipment is ensured.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. A lockable pitch-changing mechanism is characterized in that: the cable fixing device comprises a mounting seat assembly (1), a transmission shaft assembly (2) and a cable assembly (3);
the mounting seat assembly (1) comprises a mounting seat (11), a bobbin (12) and an electromagnetic clutch (13), wherein the axis of the bobbin (12) extends along the left-right direction, connecting shafts (18) are respectively arranged at the left end and the right end of the bobbin (12), the connecting shafts (18) at the left end and the right end of the bobbin (12) are respectively rotatably mounted on the mounting seat (11), at least one electromagnetic clutch (13) is mounted on the mounting seat (11), an inner hole of the electromagnetic clutch (13) is fixedly connected with the connecting shafts (18) of the bobbin (12), the connecting shafts (18) are braked or released by electrifying or powering off the electromagnetic clutch (13), and a slide way extending along the front-back direction is further arranged on the mounting seat (11);
the transmission shaft assembly (2) comprises a transmission shaft (21), the transmission shaft (21) is in sliding fit with the slideway of the mounting seat (11), the transmission shaft (21) can slide back and forth in the slideway, two cable bases (22) are arranged on the transmission shaft (21), and the two cable bases (22) are respectively positioned on the front side and the rear side of the bobbin (12);
the inhaul cable assembly (3) comprises an inhaul cable (31), the middle section of the inhaul cable (31) is wound on the bobbin (12), and two ends of the inhaul cable (31) extend out of the front end and the rear end of the bobbin (12) respectively and are connected with the two inhaul cable bases (22) respectively.
2. The lockable pitch mechanism of claim 1, wherein: the slide on the mounting seat (11) is composed of a front slide frame (19) and a rear slide frame (19), each slide frame (19) is surrounded by an upper carrier roller, a lower carrier roller, a left carrier roller and a right carrier roller to form a rectangular frame, two ends of each carrier roller are rotatably mounted on the mounting seat (11), the transmission shaft (21) sequentially penetrates through the two slide frames (19) in a sliding mode, and the transmission shaft (21) is matched with the carrier rollers of each slide frame (19) in a rolling mode.
3. The lockable pitch mechanism of claim 2, wherein: the mounting seat (11) is a rectangular frame surrounded by a bottom plate (14), a left side plate (15), a right side plate (16) and a top plate (17), connecting shafts (18) at the left end and the right end of the bobbin (12) are respectively rotatably mounted on the left side plate and the right side plate, and the electromagnetic clutch (13) is mounted on the outer side of the left side plate (15) or the right side plate (16).
4. A lockable pitch mechanism as in claim 3, wherein: both ends protrusion both ends around two curb plates respectively around bottom plate (14), two slide frame (19) set up both ends department around two curb plates respectively, both ends span respectively around two curb plates and are provided with one mounting panel (110), in every slide frame (19), both ends rotate respectively and install on two curb plates about upper and lower bearing roller (112), the upper end of left and right bearing roller (114) is rotated and is installed on mounting panel (110), the lower extreme of left and right bearing roller (114) is rotated and is installed on bottom plate (14).
5. The lockable pitch mechanism of claim 2, wherein: the stay cable base (22) is provided with an eye bolt (32), and the end part of the stay cable (31) is connected with the eye bolt (32) on the stay cable base (22) through a turn buckle (33).
6. The lockable pitch mechanism of claim 1, wherein: a transmission shaft connecting plate (23) is fixed at one end of the transmission shaft (21), an installation lug (24) is arranged on the transmission shaft connecting plate (23), headstock connecting plates (25) are respectively arranged on the left side and the right side of the installation lug (24), and the two headstock connecting plates (25) are hinged to the installation lug (24) through pin shafts (26).
7. The lockable pitch mechanism of claim 6, wherein: the lockable variable-pitch mechanism is used for connecting a horizontal conveying belt rack (42) and a headstock (41) of stacking equipment, a mounting seat (11) of the lockable variable-pitch mechanism is fixedly mounted on the horizontal conveying belt rack (42), and two headstock connecting plates (25) of the lockable variable-pitch mechanism are fixedly mounted on the headstock (41).
8. The lockable pitch mechanism of claim 1, wherein: two electromagnetic clutches (13) are installed on the installation base (11), and inner holes of the two electromagnetic clutches (13) are fixedly connected with two connecting shafts (18) respectively.
CN202222134772.7U 2022-08-12 2022-08-12 Distance changing mechanism capable of locking Active CN217755943U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222134772.7U CN217755943U (en) 2022-08-12 2022-08-12 Distance changing mechanism capable of locking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222134772.7U CN217755943U (en) 2022-08-12 2022-08-12 Distance changing mechanism capable of locking

Publications (1)

Publication Number Publication Date
CN217755943U true CN217755943U (en) 2022-11-08

Family

ID=83879156

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222134772.7U Active CN217755943U (en) 2022-08-12 2022-08-12 Distance changing mechanism capable of locking

Country Status (1)

Country Link
CN (1) CN217755943U (en)

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