CN215177285U - Paper screen image target - Google Patents
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- CN215177285U CN215177285U CN202121566678.8U CN202121566678U CN215177285U CN 215177285 U CN215177285 U CN 215177285U CN 202121566678 U CN202121566678 U CN 202121566678U CN 215177285 U CN215177285 U CN 215177285U
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Abstract
The utility model relates to a shooting range equipment technical field discloses a paper screen image target. The paper screen image target comprises a rack, a plurality of target paper components and at least one driving component, wherein each target paper component comprises target paper and two roll shafts, and two ends of the target paper are wound on the two roll shafts respectively; the driving assembly comprises a motor, a driving main shaft and a plurality of power transmission mechanisms, and the driving main shaft is connected with an output shaft of the motor; each power transmission mechanism corresponds to one roll shaft, and each power transmission mechanism is arranged between the driving main shaft and the corresponding roll shaft; each power transmission mechanism has a first state in which each power transmission mechanism is configured to transmit power to the corresponding roller shaft, and a second state in which each power output mechanism is configured to stop transmitting power to the corresponding roller shaft, and different power transmission mechanisms are respectively in the same state or different states.
Description
Technical Field
The utility model relates to a shooting range equipment technical field especially relates to a paper screen image target.
Background
At present, the shooting motion becomes the motion that people liked gradually, in order to satisfy people's shooting demand, piece together into the shooting region through multiunit target paper, shine the projection on the target paper again, form the image target, when local target paper need be changed, the roller that motor drive corresponds rotates, roll up the intensive part in bullet hole on the target paper, and make new part expand in the shooting region, however, every group target paper all needs two motors to drive the roll paper roller respectively and send the paper roller to rotate, overall structure is complicated, the utilization ratio of motor is lower, there is the problem of wasting of resources.
SUMMERY OF THE UTILITY MODEL
The utility model provides a paper screen image target for there is the motor to set up a large amount among the solution prior art, does not have make full use of's problem.
The utility model provides a paper screen image target, this paper screen image target include frame, a plurality of target paper subassembly and at least one drive assembly, wherein:
the frame comprises a frame with a hollow structure, and the frame encloses a shooting area;
the target paper assembly comprises target paper and two roller shafts arranged along the height direction, two ends of the target paper are respectively wound on the two roller shafts, one of the two roller shafts is used for paper rolling, the other roller shaft is used for paper feeding, and the part of the target paper between the two roller shafts covers the partial area of the shooting area;
the driving assembly comprises a motor, a driving main shaft and a plurality of power transmission mechanisms, and the driving main shaft is connected with an output shaft of the motor; each power transmission mechanism corresponds to one roll shaft, and is respectively connected with the driving main shaft and the corresponding roll shaft;
each power transmission mechanism has a first state in which each power transmission mechanism is configured to transmit power to the corresponding roller shaft, and a second state in which each power output mechanism is configured to stop transmitting power to the corresponding roller shaft, and different power transmission mechanisms are respectively in the same state or different states.
In the above embodiment, the driving main shaft is connected to the output shaft of the motor, a power transmission mechanism is disposed between the driving main shaft and each roller shaft, the power transmission mechanism can transmit power to the corresponding roller shaft to make the roller shaft rotate along with the driving main shaft, and can also stop transmitting power to the corresponding roller shaft to make the roller shaft keep stationary relative to the driving main shaft, and different power transmission mechanisms can be in the same state or different states, when any one of the target paper components needs to roll paper or feed paper, the corresponding roll shaft can be driven to rotate by the power transmission mechanism, and other roll shafts are kept static, so that a plurality of roll shafts can share one motor, each roll shaft can rotate along with the driving general shaft according to the requirement, or the motor is kept still without being influenced mutually, so that the number of the motors can be reduced, and the utilization rate of the motors is improved.
Optionally, the driving assembly includes a first power transmission mechanism and a second power transmission mechanism;
the first power transmission mechanism and the second power transmission mechanism respectively comprise a one-way bearing and a transmission device, the one-way bearing is arranged on the driving main shaft, the transmission device is respectively connected with the one-way bearing and the corresponding roll shaft, or the one-way bearing is arranged on the corresponding roll shaft, and the transmission device is respectively connected with the one-way bearing and the driving main shaft;
the one-way bearing in the first power transmission mechanism and the one-way bearing in the second power transmission mechanism are installed in a reverse direction;
when the driving total shaft rotates forwards, the first power transmission mechanism is in the first state, and the second power transmission mechanism is in the second state; when the drive total shaft rotates reversely, the second power transmission mechanism is in the first state, and the first power transmission mechanism is in the second state.
In the above alternative embodiment, the one-way bearings are freely rotatable in one direction and can transmit torque in the other direction, and the one-way bearing in the first power transmission mechanism and the one-way bearing in the second power transmission mechanism are installed in opposite directions, that is, the two one-way bearings are freely rotatable or can transmit torque in opposite directions, so that one roller shaft can be rotated and the other roller shaft can be kept stationary by controlling the forward rotation or the reverse rotation of the motor in cooperation with the one-way bearings.
Optionally, each power transmission mechanism comprises a clutch and a transmission device;
the clutch is arranged on the driving main shaft, and the transmission device is arranged between the clutch and the corresponding roll shaft;
the clutch is configured to power couple the transmission with the drive shaft to place the corresponding power transmission mechanism in the first state or to power decouple the transmission from the drive shaft to place the corresponding power transmission mechanism in the second state.
In the above alternative embodiment, the transmission device is controlled by the clutch to be in power connection with or power disconnection from the drive shaft, so that the corresponding roll shaft rotates with the drive shaft or is kept stationary relative to the drive shaft.
Optionally, the driving assemblies correspond to the target paper assemblies one by one;
the driving assembly comprises a first power transmission mechanism and a second power transmission mechanism, the first power transmission mechanism is connected with one of the two roll shafts, and the second power transmission mechanism is connected with the other of the two roll shafts.
In the above alternative embodiment, the power transmission mechanism in the driving assembly may be in the form of a one-way bearing or a clutch, and each driving assembly can control two rollers in the same target paper assembly to rotate.
Optionally, the driving assembly corresponds to two adjacent target paper assemblies;
the two roll shafts in each target paper assembly are respectively a paper feeding roll shaft and a paper winding roll shaft;
among the drive assembly, first power transmission mechanism with second power transmission mechanism respectively with the paper feed roller one-to-one in two rollers and connect, perhaps, first power transmission mechanism with second power transmission mechanism respectively with the paper winding roller one-to-one in two rollers and connect.
In the above alternative embodiment, the power transmission mechanism in the driving assembly may be in the form of one-way bearings, and each driving assembly may be used to control the rotation of the winding roller shaft or the rotation of the paper feeding roller shaft in two adjacent target paper assemblies.
Optionally, the driving assembly corresponds to at least two target paper assemblies;
the two roll shafts in each target paper assembly are respectively a paper feeding roll shaft and a paper winding roll shaft;
the driving assembly comprises at least two power transmission mechanisms, and the at least two power transmission mechanisms are in one-to-one correspondence with and connected with the paper feeding roller shafts in the at least two target paper assemblies; or the at least two power transmission mechanisms are in one-to-one correspondence with and connected with the winding roller shafts in the at least two target paper assemblies.
In the above alternative embodiment, the power transmission mechanism in the drive assemblies may take the form of clutches, and each drive assembly may be used to control the rotation of the take-up roller or the feed roller in multiple target assemblies.
Optionally, the driving assembly corresponds to at least two target paper assemblies;
the driving assembly comprises a plurality of power transmission mechanisms, and the power transmission mechanisms are in one-to-one correspondence with and connected with the roll shafts of the at least two target paper assemblies.
In the above alternative embodiment, the power transmission mechanism in the driving assembly may take the form of a clutch, and each driving assembly corresponds to a plurality of target paper assemblies and is used for driving any one roller shaft in the target paper assemblies to rotate, and the roller shaft may be a roll paper roller shaft or a paper feeding roller shaft.
Optionally, two roll shafts in the target paper assembly are a paper rolling roll shaft and a paper feeding roll shaft respectively;
the target paper assembly also comprises a first support and a second support which are arranged at two ends of the paper rolling roller shaft and two ends of the paper feeding roller shaft, and the first support and the second support are connected with the rack;
the paper rolling roll shaft and the paper feeding roll shaft are respectively and rotatably connected with the first bracket and the second bracket;
the paper rolling roll shaft is connected with the power transmission mechanism;
and a locking mechanism is arranged between the paper feeding roller shaft and the first support and/or the second support and is used for locking the paper feeding roller shaft or releasing the paper feeding roller shaft.
In the above alternative embodiment, when the locking mechanism releases the paper feed roller shaft, the paper feed roller shaft can rotate freely under the action of external force, so that unused target paper is fed out; the paper rolling roll shaft is connected with the power transmission mechanism, the paper rolling roll shaft is rotated under the action of the power transmission mechanism so as to wind target paper to be replaced, unused target paper is spread in a shooting area, when the paper feeding roll shaft is locked by the locking mechanism, the paper feeding roll shaft cannot rotate freely, and the target paper can be in a tensioning state through the locking mechanism.
Optionally, the locking mechanism is an electromagnetic band-type brake.
In the above optional embodiment, when the electromagnetic band-type brake is powered on, the paper feeding roller shaft is released, the paper feeding roller shaft can rotate freely under the action of external force, and when the electromagnetic band-type brake is powered off, the paper feeding roller shaft is tightly held, and the paper feeding roller shaft cannot rotate freely.
Optionally, the device further comprises a tensioning device, wherein the tensioning device comprises a control assembly, two driving assemblies fixed on the rack, and a lifting roller shaft connected with the two driving assemblies;
target paper on the paper feeding roller shaft bypasses the lifting roller shaft and then is wound on the paper winding roller shaft;
the control assembly is used for controlling the driving assembly to drive the lifting roller shaft to ascend after the locking mechanism releases the paper feeding roller shaft so as to pull out part of target paper from the paper feeding roller shaft; and the driving component is also used for controlling the lifting roller shaft to descend and tensioning the target paper when the target paper is rolled by the paper rolling roller shaft.
Drawings
Fig. 1 is a schematic structural view of a paper screen image target according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of the paper screen image target provided in FIG. 1;
fig. 3 is a schematic structural view of another paper screen image target according to an embodiment of the present invention;
FIG. 4 is a partial schematic view of the paper screen image target provided in FIG. 3;
fig. 5 is a schematic structural view of an automatic paper feeding assembly according to an embodiment of the present invention.
Reference numerals:
10-roll paper roll axis; 20-paper feed roll shaft; 30-target paper; 40-a motor; 50-drive axle; 60-a power transmission mechanism; 60 a-a first power transmission mechanism; 60b — a first power transmission mechanism; 61-one-way bearing; 62-a transmission; 63-a clutch; 621-a first drive wheel; 622-second transmission wheel; 623-a belt; 70-a locking mechanism; 80-a tensioning mechanism; 81-a drive assembly; 82-lifting roll shafts; 90 a-a first bracket; 90 b-second bracket.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a paper screen image target for there is the motor to set up a large amount among the solution prior art, does not have make full use of's problem.
Specifically, as shown in fig. 1 and 3, the paper screen image target includes a frame (not shown), a plurality of target paper assemblies, and at least one driving assembly, wherein:
the frame comprises a frame with a hollow structure, and the frame surrounds a shooting area;
the target paper assembly comprises target paper 30 and two roller shafts arranged along the height direction, two ends of the target paper 30 are respectively wound on the two roller shafts, one of the two roller shafts is used for paper rolling, the other roller shaft is used for paper feeding, and the part of the target paper 30 between the two roller shafts covers the partial area of the shooting area;
the driving assembly comprises a motor 40, a driving general shaft 50 and a plurality of power transmission mechanisms 60, wherein the driving general shaft 50 is connected with an output shaft of the motor 40; each power transmission mechanism 60 corresponds to one roller shaft, and each power transmission mechanism 60 is connected with the drive main shaft 50 and the corresponding roller shaft;
each power transmission mechanism 60 has a first state in which each power transmission mechanism 60 is configured to transmit power to the corresponding roller shaft, and a second state in which each power output mechanism is configured to stop transmitting power to the corresponding roller shaft, and different power transmission mechanisms 60 are respectively in the same state or different states.
Specifically, in the paper screen image target, the target paper assembly includes two rollers, and the target paper 30 is wound around the two rollers, and for convenience of description, the two rollers are referred to as the paper winding roller 10 and the paper feeding roller 20, and the two rollers are arranged in the height direction, so that the target paper 30 between the two rollers is spread in the shooting area surrounded by the frame.
The driving assembly comprises a motor 40, a driving general shaft 50 and a plurality of power transmission mechanisms 60, wherein the driving general shaft 50 and the roll shafts are arranged in the same direction, the extending directions of the driving general shaft 50 and the roll shafts are consistent, the driving general shaft 50 is connected with an output shaft of the motor 40, and the driving general shaft 50 can rotate along with the rotation of the motor 40; the power transmission mechanisms 60 are disposed between the drive shaft 50 and the roller shafts, and each power transmission mechanism 60 corresponds to one roller shaft, that is, the motor 40 may be used to drive a plurality of roller shafts to rotate in one drive assembly.
Specifically, the power transmission mechanism 60 has a first state in which the power transmission mechanism 60 can transmit power to the corresponding roller shaft, causing the roller shaft to rotate with the drive shaft 50, in the second state, the power transmission mechanism 60 stops transmitting power to the corresponding roller shaft, so that the roller shaft is kept stationary relative to the drive shaft 50, and different power transmission mechanisms 60 can be in the same state or different states, in the using process, for any one target paper assembly, when paper rolling or feeding is needed, the corresponding roller shaft can be driven to rotate through the power transmission mechanism 60, while the other roller shafts remain stationary, so that a plurality of roller shafts can share one motor 40, each roller shaft can rotate with the drive shaft 50 as required, or remain stationary, so that the number of the motors 40 can be reduced, and the utilization rate of the motors 40 can be improved.
In some embodiments, as shown in fig. 1, 2, the drive assembly includes a first power transmission mechanism 60a, a second power transmission mechanism 60 b;
the first power transmission mechanism 60a and the second power transmission mechanism 60b respectively comprise a one-way bearing 61 and a transmission device 62, the one-way bearing 61 is arranged on the drive total shaft 50, the transmission device 62 is respectively connected with the one-way bearing 61 and a corresponding roll shaft, or the one-way bearing 61 is arranged on the corresponding roll shaft, and the transmission device 62 is respectively connected with the one-way bearing 61 and the drive total shaft 50;
the one-way bearing 61 in the first power transmission mechanism 60a and the one-way bearing 61 in the second power transmission mechanism 60b are installed in opposite directions;
when the total shaft 50 is driven to rotate forward, the first power transmission mechanism 60a is in the first state, and the second power transmission mechanism 60b is in the second state; when the drive total shaft 50 is reversely rotated, the second power transmission mechanism 60b is in the first state, and the first power transmission mechanism 60a is in the second state.
Specifically, the one-way bearing 61 can rotate freely in one direction, and can transmit torque in the other direction, when the one-way bearing 61 is in a free rotation state, the one-way bearing 61 can rotate relative to the drive main shaft 50 or the roller shaft, and cannot transmit power, so that the power for driving the main shaft 50 cannot be transmitted to the roller shaft; when the one-way bearing 61 is capable of transmitting torque, the one-way bearing 61 is fixed relative to the drive shaft 50 or the roller shaft and can rotate synchronously with the drive shaft 50 or the roller shaft, thereby transmitting power, so that the power of the drive shaft 50 can be transmitted to the roller shaft.
In the paper screen image target, the one-way bearing 61 in the first power transmission mechanism 60a and the one-way bearing 61 in the second power transmission mechanism 60b are installed in opposite directions, the two one-way bearings 61 rotate freely or can transmit torque in opposite directions, that is, when the motor 40 rotates in a certain direction, one of the two one-way bearings 61 is in a free rotation state, so that the power of the driving main shaft 50 cannot be transmitted to the roller shaft, and the other one can transmit torque, so that the power of the driving main shaft 50 can be transmitted to the roller shaft.
When the main shaft 50 is driven to rotate forwards, the one-way bearing 61 in the first power transmission mechanism 60a can transmit torque, so that the first power transmission mechanism 60a is in a first state, and the one-way bearing 61 in the second power transmission mechanism 60b can rotate freely relative to the main shaft 50 or a corresponding roll shaft, so that the second power transmission mechanism 60b is in a second state; when the drive shaft 50 is rotated reversely, the one-way bearing 61 in the first power transmission mechanism 60a is freely rotatable with respect to the drive shaft 50 or the corresponding roller shaft, so that the first power transmission mechanism 60a is in the second state, and the one-way bearing 61 in the second power transmission mechanism 60b is capable of transmitting torque, so that the second power transmission mechanism 60b is in the first state.
Specifically, when the driving main shaft 50 (the motor 40) rotates forward, the one-way bearing 61 in the first power transmission mechanism 60a is fixed relative to the driving main shaft 50 or the roller shaft, and the one-way bearing 61 can transmit power and rotate synchronously with the driving main shaft 50 or the roller shaft, so that the power on the driving main shaft 50 can be transmitted to the corresponding roller shaft, and the function of feeding paper or rolling paper is realized; at this time, the one-way bearing 61 in the second power transmission mechanism 60b is free to rotate relative to the drive shaft 50 or the roller shaft, and the one-way bearing 61 cannot transmit power and the roller shaft cannot rotate in accordance with the rotation of the drive shaft 50.
When the drive total shaft 50 (the motor 40) rotates reversely, the one-way bearing 61 in the first power transmission mechanism 60a rotates freely relative to the drive total shaft 50 or the roller shaft, and the one-way bearing 61 cannot transmit power, so that the roller shaft cannot rotate along with the rotation of the drive total shaft 50; at this time, the one-way bearing 61 in the second power transmission mechanism 60b is fixed relative to the drive main shaft 50 or the roller shaft, and the one-way bearing 61 can transmit power and rotate synchronously with the drive main shaft 50 or the roller shaft, so that the power on the drive main shaft 50 can be transmitted to the corresponding roller shaft, and the function of paper feeding or paper rolling is realized.
In summary, in the case of using one motor 40, when the motor 40 rotates in a certain direction, one of the two roller shafts corresponding to the two power transmission mechanisms 60 rotates with the rotation of the motor 40, and the other roller shaft remains relatively stationary.
As shown in fig. 2, in the driving assembly, the transmission device 62 includes two transmission wheels and a belt 623 sleeved on the two transmission wheels, for convenience of description, the two transmission wheels are respectively denoted as a first transmission wheel 621 and a second transmission wheel 622, the diameter of the first transmission wheel 621 is smaller than that of the second transmission wheel 622, the first transmission wheel 621 is sleeved on the driving main shaft 50, the second transmission wheel 622 is sleeved on the roller shaft, and a set transmission ratio is provided between the first transmission wheel 621 and the second transmission wheel 622, so as to achieve the effect of speed reduction.
The one-way bearing 61 may be disposed between the first driving wheel 621 and the driving shaft 50, or between the second driving wheel 622 and the corresponding roller shaft, and since the diameter of the second driving wheel 622 is large, optionally, the one-way bearing 61 is disposed between the second driving wheel 622 and the corresponding roller shaft.
In the above embodiment, the power transmission mechanism 60 includes the one-way bearing 61 and the transmission device 62, and the one-way bearing 61 of the two power transmission mechanisms 60 is installed in the reverse direction, and the corresponding roller shaft is driven to rotate by controlling the forward rotation and the reverse rotation of the motor 40 under the cooperation of the one-way bearing 61 and the transmission device 62.
In other embodiments, as shown in fig. 3, 4, each power transmission mechanism 60 includes a clutch 63 and a transmission 62;
the clutch 63 is arranged on the driving general shaft 50, and the transmission device 62 is arranged between the clutch 63 and the corresponding roller shaft;
the clutch 63 is configured to power couple the transmission 62 with the drive shaft 50 to place the corresponding power transmission mechanism 60 in the first state, or to power decouple the transmission 62 from the drive shaft 50 to place the corresponding power transmission mechanism 60 in the second state.
Specifically, the clutch 63 includes two half clutches, which are a first half clutch and a second half clutch respectively, the first half clutch and the second half clutch are both disposed on the driving main shaft 50, and the first half clutch and the driving main shaft 50 are fixedly connected, the first half clutch can rotate synchronously with the driving main shaft 50, the second half clutch and the driving main shaft 50 are connected through a bearing, the second half clutch can rotate relatively with the driving main shaft 50, and the second half clutch is connected with the transmission device 62.
When the first half clutch is combined with the second half clutch, the second half clutch rotates synchronously along with the rotation of the driving main shaft 50, meanwhile, the second half clutch drives the transmission device 62 to rotate, the transmission device 62 drives the corresponding roller shaft to rotate, so that the transmission device 62 and the driving main shaft 50 realize power combination, and at the moment, the power transmission mechanism 60 meets the first state; the first half clutch and the second half clutch are separated, the second half clutch and the driving main shaft 50 rotate relatively, the second half clutch cannot transmit power on the driving main shaft 50 to a corresponding roller shaft through the transmission device 62, so that the transmission device 62 and the driving main shaft 50 are separated from each other, and at the moment, the power transmission mechanism 60 meets the second state.
Optionally, as shown in fig. 4, the transmission device 62 includes two transmission wheels and a belt 623 sleeved on the two transmission wheels, for convenience of description, the two transmission wheels are respectively recorded as a first transmission wheel 621 and a second transmission wheel 622, the diameter of the first transmission wheel 621 is smaller than that of the second transmission wheel 622, the first transmission wheel 621 is connected to the second half clutch 63, the second transmission wheel 622 is connected to the roller shaft, and a set transmission ratio is provided between the first transmission wheel 621 and the second transmission wheel 622, so that a speed reduction effect is achieved.
In the above embodiment, the transmission 62 is controlled by the clutch 63 to be power-coupled or power-decoupled with the drive shaft 50, so that the corresponding roller shaft rotates with the drive shaft 50 or remains stationary with respect to the drive shaft 50.
In the paper screen image target, the driving components can correspond to the target paper components one by one;
the driving assembly includes two power transmission mechanisms 60, which are a first power transmission mechanism 60a and a second power transmission mechanism 60b, respectively, wherein the first power transmission mechanism 60a is connected with one of the two roll shafts, and the second power transmission mechanism 60b is connected with the other of the two roll shafts.
In this way, two rollers in the same target paper assembly can be controlled to rotate by one driving assembly, and when one of the two rollers rotates, the other roller can be kept relatively static, and the two rollers can independently operate and are not influenced by each other.
Specifically, the two power transmission mechanisms 60 in the driving assembly may be in the form of one-way bearings 61, and the two one-way bearings 61 are installed in opposite directions, and the rotation of the corresponding roller shafts is controlled by the forward rotation or reverse rotation of the motor 40; alternatively, a clutch 63 may be used, and the transmission 62 is controlled by the clutch 63 to be power-coupled or power-decoupled with the drive shaft 50, so that the corresponding roller shaft rotates with the drive shaft 50 or remains stationary with respect to the drive shaft 50.
In this paper screen image target, can set up repeatedly many to drive assembly and target paper subassembly, specific quantity can be set for according to actual need, and the configuration is very nimble.
In the paper screen image target, as shown in fig. 1, the driving component can also correspond to two adjacent target paper components;
the two roll shafts in each target paper assembly are a paper feeding roll shaft 20 and a paper winding roll shaft 10 respectively;
the driving assembly includes two power transmission mechanisms 60, which are denoted as a first power transmission mechanism 60a and a second power transmission mechanism 60b, wherein the first power transmission mechanism 60a and the second power transmission mechanism 60b are respectively connected with the feeding roller shaft 20 of the two roller shafts, or the first power transmission mechanism 60a and the second power transmission mechanism 60b are respectively connected with the winding roller shaft 10 of the two roller shafts.
Specifically, the two power transmission mechanisms 60 are both in the form of one-way bearings 61, and the one-way bearings 61 are installed in opposite directions, and the rotation of the corresponding roller shafts is controlled by the forward rotation or the reverse rotation of the motor 40.
In addition, when assembling, the paper feeding roller shafts 20 in two adjacent target paper assemblies can be installed at the same height, the paper rolling roller shafts 10 are installed at the same height, and the driving main shaft 50 in the driving assembly can be installed adjacent to the paper feeding roller shafts 20 in the two target paper assemblies and used for driving the paper feeding roller shafts 20 to rotate, or the driving main shaft 50 can also be installed adjacent to the paper rolling roller shafts 10 and used for driving the paper rolling roller shafts 10 to rotate, so that the distance between the driving main shaft 50 and the roller shafts is short, the length of the belt 623 in the transmission device 62 can be shortened, and the transmission efficiency is improved.
In the paper screen image target, a plurality of the above-mentioned driving assemblies may be provided, and each driving assembly corresponds to two adjacent target paper assemblies, and only one driving assembly is exemplarily illustrated in fig. 1.
In other embodiments, the driving assembly corresponds to at least two target paper assemblies;
the two roll shafts in each target paper assembly are a paper feeding roll shaft 20 and a paper winding roll shaft 10 respectively;
the driving assembly comprises at least two power transmission mechanisms 60, and the at least two power transmission mechanisms 60 are in one-to-one correspondence and connection with the paper feeding roller shafts 20 in the at least two target paper assemblies; alternatively, the at least two power transmission mechanisms 60 are connected to the winding roller shafts 10 of the at least two target paper assemblies in a one-to-one correspondence.
Specifically, the number of the power transmission mechanisms 60 may be two, three, four or other numbers, the power transmission mechanisms 60 are in the form of clutches 63, and the power transmission device 62 is controlled by the clutches 63 to be in power connection with or power disconnection from the drive shaft 50, so that the corresponding roller shafts rotate along with the drive shaft 50 or remain stationary relative to the drive shaft 50.
For example, when one of the roller shafts needs to be driven to rotate, the two half clutches 63 in the corresponding power transmission mechanism 60 may be in an engaged state, so that the roller shaft may rotate with the rotation of the drive shaft 50, while the two half clutches 63 in the remaining power transmission mechanism 60 are in a disengaged state, and the remaining roller shafts may not rotate with the rotation of the drive shaft 50.
In other embodiments, as shown in fig. 3, the driving assembly corresponds to at least two target paper assemblies;
the driving assembly comprises a plurality of power transmission mechanisms 60, and the plurality of power transmission mechanisms 60 correspond to and are connected with the roller shafts of the at least two target paper assemblies one to one.
Specifically, in the image target of the paper screen, one driving assembly corresponds to at least two target paper assemblies, that is, the motor 40 in the driving assembly can be used to drive any one of the at least two target paper assemblies to rotate, and the roller shaft is the winding roller shaft 10 or the feeding roller shaft 20. In the driving assembly, the power transmission mechanism 60 is in the form of a clutch 63, and the clutch 63 is used for controlling the transmission device 62 to be in power connection with or power disconnection from the driving main shaft 50, so that the corresponding roller shaft rotates along with the driving main shaft 50 or keeps static relative to the driving main shaft 50.
For example, when one of the roller shafts needs to be driven to rotate, the two half clutches 63 in the corresponding power transmission mechanism 60 may be in an engaged state, so that the roller shaft may rotate with the rotation of the drive shaft 50, while the two half clutches 63 in the remaining power transmission mechanism 60 are in a disengaged state, and the remaining roller shafts may not rotate with the rotation of the drive shaft 50.
It should be noted that fig. 3 only shows two paper target assemblies and two power transmission mechanisms 60 in the driving assembly, and other paper target assemblies may be provided as required, and the power transmission mechanisms 60 are correspondingly provided to connect the roller shafts in the paper target assemblies with the driving shaft 50.
As shown in fig. 1, in the paper screen image target, two roll shafts in the target paper assembly are a winding roll shaft 10 and a paper feeding roll shaft 20 respectively;
the target paper assembly also comprises a first bracket 90a and a second bracket 90b which are arranged at two ends of the paper winding roller shaft 10 and the paper feeding roller shaft 20, and the first bracket 90a and the second bracket 90b are connected with the frame;
the paper rolling roller shaft 10 and the paper feeding roller shaft 20 are respectively and rotatably connected with the first bracket 90a and the second bracket 90 b;
the roll paper roll shaft 10 is connected with the power transmission mechanism 60;
a lock mechanism 70 is provided between the paper feed roller shaft 20 and the first bracket 90a and/or the second bracket 90b, and the lock mechanism 70 is used for locking the paper feed roller shaft 20 or releasing the paper feed roller shaft 20.
Specifically, when the locking mechanism 70 releases the paper feed roller shaft 20, the paper feed roller shaft 20 is free to rotate under the action of external force, so that the unused target paper 30 is fed out; the paper winding roller shaft 10 is connected with a power transmission mechanism 60, under the action of the power transmission mechanism 60, the paper winding roller shaft 10 is rotated to wind the target paper 30 to be replaced, and the unused target paper 30 is spread in the shooting area, when the locking mechanism 70 locks the paper feeding roller shaft 20, the paper feeding roller shaft 20 can not rotate freely, and the target paper 30 can be in a tensioning state through the locking mechanism 70.
When the electromagnetic band-type brake is powered on, the paper feeding roller shaft 20 is released, the paper feeding roller shaft 20 can rotate freely under the action of external force, and when the electromagnetic band-type brake is powered off, the paper feeding roller shaft 20 is tightly held, and the paper feeding roller shaft 20 cannot rotate freely.
As shown in fig. 5, the paper screen image target further includes a tensioning device 80, wherein the tensioning device 80 includes a control assembly (not shown), two driving assemblies 81 fixed on the frame, and a lifting roller 82 connected with the two driving assemblies 81;
the target paper 30 on the paper feeding roller shaft 20 is wound on the paper winding roller shaft 10 after bypassing the lifting roller shaft 82;
the control component is used for controlling the driving component 81 to drive the lifting roller shaft 82 to ascend after the locking mechanism 70 releases the paper feeding roller shaft 20 so as to pull out part of the target paper 30 from the paper feeding roller shaft 20; and when the target paper is wound by the winding roller shaft 10, the control driving assembly 81 drives the lifting roller shaft 82 to descend and tension the target paper 30.
Specifically, as shown in fig. 5, two driving assemblies 81 are located at two ends of the lifting roller shaft 82, the driving assemblies 81 may be a hydraulic driving assembly, a pneumatic driving assembly, or the like, and the two driving assemblies 81 may operate synchronously or independently.
When the paper feeding roller shaft 20 is in a locked state, the target paper 30 is tensioned; after the locking mechanism 70 releases the feeding roller shaft 20, under the action of the control assembly, the two driving assemblies 81 can synchronously operate, so as to drive the lifting roller shaft 82 to ascend, and part of the target paper 30 is pulled out of the feeding roller shaft 20 in the process of ascending the lifting roller shaft 82.
Further, the winding roller shaft 10 is connected with the driving main shaft 50 through the power transmission mechanism 60, when the power transmission mechanism 60 is in the first state, the winding roller shaft 10 winds up, so that the target paper 30 to be replaced is wound on the winding roller shaft 10, and the unused target paper 30 gradually spreads in the shooting area, in the process, under the action of the control assembly, the two driving assemblies 81 can synchronously act, so that the lifting roller shaft 82 is driven to descend, and the two driving assemblies 81 can also independently act under the action of the control assembly, so that one end of the lifting roller shaft 82 ascends or descends relative to the other end, so that the tension of the target paper 30 is adjusted, and the target paper 30 is in the tension state.
The power transmission mechanism 60 corresponding to the roll paper shaft 10 may be in the form of a one-way bearing 61 or a clutch 63, and is not particularly limited herein.
Can see through the above description, the embodiment of the utility model provides an in the paper screen image target, a motor can be shared to a plurality of rollers, and each roller can rotate along with the drive total axis as required, or keep static, is not influenced each other, like this, can reduce the quantity that sets up of motor, improves the utilization ratio of motor.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a paper screen image target which characterized in that, includes frame, a plurality of target paper subassemblies and at least one drive assembly, wherein:
the frame comprises a frame with a hollow structure, and the frame encloses a shooting area;
the target paper assembly comprises target paper and two roll shafts, two ends of the target paper are respectively wound on the two roll shafts, one of the two roll shafts is used for rolling paper, the other roll shaft is used for feeding paper, and the part of the target paper between the two roll shafts covers the partial area of the shooting area;
the driving assembly comprises a motor, a driving main shaft and a plurality of power transmission mechanisms, and the driving main shaft is connected with an output shaft of the motor; each power transmission mechanism corresponds to one roll shaft, and is respectively connected with the driving main shaft and the corresponding roll shaft;
each power transmission mechanism has a first state in which each power transmission mechanism is configured to transmit power to the corresponding roller shaft, and a second state in which each power transmission mechanism is configured to stop transmitting power to the corresponding roller shaft, and different power transmission mechanisms are respectively in the same state or different states.
2. The paper screen image target of claim 1, wherein the drive assembly comprises a first power transmission mechanism, a second power transmission mechanism;
the first power transmission mechanism and the second power transmission mechanism respectively comprise a one-way bearing and a transmission device, the one-way bearing is arranged on the driving main shaft, the transmission device is respectively connected with the one-way bearing and the corresponding roll shaft, or the one-way bearing is arranged on the corresponding roll shaft, and the transmission device is respectively connected with the one-way bearing and the driving main shaft;
the one-way bearing in the first power transmission mechanism and the one-way bearing in the second power transmission mechanism are installed in a reverse direction;
when the driving total shaft rotates forwards, the first power transmission mechanism is in the first state, and the second power transmission mechanism is in the second state; when the drive total shaft rotates reversely, the second power transmission mechanism is in the first state, and the first power transmission mechanism is in the second state.
3. The paper screen image target of claim 1, wherein each power transmission mechanism comprises a clutch and a transmission;
the clutch is arranged on the driving main shaft, and the transmission device is arranged between the clutch and the corresponding roll shaft;
the clutch is configured to power couple the transmission with the drive shaft to place the corresponding power transmission mechanism in the first state or to power decouple the transmission from the drive shaft to place the corresponding power transmission mechanism in the second state.
4. The paper screen image target according to claim 2 or 3, wherein the driving assemblies correspond to the target paper assemblies one to one;
the driving assembly comprises a first power transmission mechanism and a second power transmission mechanism, the first power transmission mechanism is connected with one of the two roll shafts, and the second power transmission mechanism is connected with the other of the two roll shafts.
5. The paper screen image target of claim 2, wherein the driving assembly corresponds to two adjacent target paper assemblies;
the two roll shafts in each target paper assembly are respectively a paper feeding roll shaft and a paper winding roll shaft;
among the drive assembly, first power transmission mechanism with second power transmission mechanism respectively with the paper feed roller one-to-one in two rollers and connect, perhaps, first power transmission mechanism with second power transmission mechanism respectively with the paper winding roller one-to-one in two rollers and connect.
6. The paper screen image target of claim 3, wherein the driving assembly corresponds to at least two target paper assemblies;
the two roll shafts in each target paper assembly are respectively a paper feeding roll shaft and a paper winding roll shaft;
the driving assembly comprises at least two power transmission mechanisms, and the at least two power transmission mechanisms are in one-to-one correspondence with and connected with the paper feeding roller shafts in the at least two target paper assemblies; or the at least two power transmission mechanisms are in one-to-one correspondence with and connected with the winding roller shafts in the at least two target paper assemblies.
7. The paper screen image target of claim 3, wherein the driving assembly corresponds to at least two target paper assemblies;
the driving assembly comprises a plurality of power transmission mechanisms, and the power transmission mechanisms are in one-to-one correspondence with and connected with the roll shafts of the at least two target paper assemblies.
8. The paper-screen image target of claim 2 or 3, wherein the two rollers of the target paper assembly are a paper-rolling roller and a paper-feeding roller, respectively;
the target paper assembly also comprises a first support and a second support which are arranged at two ends of the paper rolling roller shaft and two ends of the paper feeding roller shaft, and the first support and the second support are connected with the rack;
the paper rolling roll shaft and the paper feeding roll shaft are respectively and rotatably connected with the first bracket and the second bracket;
the paper rolling roll shaft is connected with the power transmission mechanism;
and a locking mechanism is arranged between the paper feeding roller shaft and the first support and/or the second support and is used for locking the paper feeding roller shaft or releasing the paper feeding roller shaft.
9. The paper-screen image target of claim 8, wherein the locking mechanism is an electromagnetic band-type brake.
10. The paper screen image target of claim 8, further comprising a tensioning device, wherein the tensioning device comprises a control assembly, two driving assemblies fixed on the frame, and a lifting roller connected with the two driving assemblies;
target paper on the paper feeding roller shaft bypasses the lifting roller shaft and then is wound on the paper winding roller shaft;
the control assembly is used for controlling the driving assembly to drive the lifting roller shaft to ascend after the locking mechanism releases the paper feeding roller shaft so as to pull out part of target paper from the paper feeding roller shaft; and the driving component is also used for controlling the lifting roller shaft to descend and tensioning the target paper when the target paper is rolled by the paper rolling roller shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121566678.8U CN215177285U (en) | 2021-07-09 | 2021-07-09 | Paper screen image target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121566678.8U CN215177285U (en) | 2021-07-09 | 2021-07-09 | Paper screen image target |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215177285U true CN215177285U (en) | 2021-12-14 |
Family
ID=79397323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121566678.8U Active CN215177285U (en) | 2021-07-09 | 2021-07-09 | Paper screen image target |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215177285U (en) |
-
2021
- 2021-07-09 CN CN202121566678.8U patent/CN215177285U/en active Active
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