Coupler clamping device and control method thereof
By setting multiple pressure monitoring components on the clamping surface of the hook clamping device, the clamping status of the hook is directly monitored, which solves the problem of low monitoring accuracy in the prior art, and achieves high accuracy of the clamping status of the hook clamping status Monitoring improves security.
Patent Information
- Application Number
- CN202010567372.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-06-19
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2040-06-19
AI Technical Summary
In the existing hook hook device, the wire-pull displacement sensor can only indirectly monitor changes in the clamping space, with low accuracy, prone to misjudgment, and can only monitor one stress point, resulting in safety hazards such as loosening or falling off of the hook.
Design a hook clamping device, by providing multiple pressure monitoring components on the clamping surfaces of the first clamping claw and the second clamping claw, directly monitoring the clamping state of the hook by using a pressure sensor, realizing multi-point monitoring and improving Monitor accuracy.
It significantly improves the monitoring accuracy of the hook clamping status, avoids the risk of loosening or falling off of the hook, and ensures the safety of train operation.
Smart Images
Figure CN111762221B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of trains, and in particular to a coupler clamping device and a control method thereof. Background Art
[0002] At present, the main engine at the tail of the freight train is connected to the hook device of the train through a coupler. During the operation of the train, the coupler may become loose or even fall off the train, causing a safety accident. In order to monitor the tightness of the coupler in real time and avoid the above situation, the hook device is generally equipped with a pull-wire displacement sensor and a pull-wire. The pull-wire displacement sensor determines whether the clamping space of the hook device has become larger by monitoring the change in the length of the pull-wire, and then determines whether the coupler is loose. Since the pull-wire displacement sensor indirectly determines whether the coupler is loose based on the size of the clamping space, and the pull-wire displacement sensor can only monitor one force point on the hook device, the accuracy of its monitoring results is low and it is easy to make misjudgments. Summary of the invention
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. To this end, the present invention provides a coupler clamping device to achieve the clamping of the coupler and the accurate monitoring of the clamping firmness.
[0004] According to the first aspect of the present invention, the coupler clamping device includes a mounting seat, a movable shaft, a sleeve, a first clamping claw, a second clamping claw and a plurality of pressure monitoring components, the mounting seat is formed with a mounting groove for fixing the sleeve, and the side wall of the sleeve is connected to the first clamping claw; one end of the movable shaft passes through the interior of the sleeve and is threadedly connected to the handwheel, and the other end is fixedly connected to the second clamping claw; the first clamping claw and the second clamping claw are arranged opposite to each other, and the clamping surfaces of the first clamping claw and the second clamping claw are provided with a plurality of mounting holes for installing the pressure monitoring components; the pressure monitoring component includes a pressure column and a pressure sensor and a reset member arranged in the mounting hole, the reset member is arranged between the pressure sensor and the pressure column, the first end of the pressure column extends into the mounting hole and is arranged opposite to the contact of the pressure sensor, and the second end protrudes out of the mounting hole.
[0005] The coupler clamping device according to the embodiment of the present invention not only realizes multi-point monitoring, but also the pressure sensor directly determines whether the coupler is clamped according to the pressure applied by the coupler, which significantly improves the accuracy of the monitoring result.
[0006] In addition, the coupler clamping device according to the embodiment of the present invention may also have the following additional technical features:
[0007] According to an embodiment of the present invention, the pressure monitoring assembly further comprises an elastic protective member disposed in the mounting hole, and the elastic protective member is disposed on a side of the pressure sensor facing away from the pressure column.
[0008] According to an embodiment of the present invention, the elastic protection member and the reset member are both compression springs, and the stiffness of the elastic protection member is greater than the stiffness of the reset member.
[0009] According to an embodiment of the present invention, the mounting hole is a through hole, and one end of the through hole away from the pressure column is threadedly connected with a screw plug.
[0010] According to one embodiment of the present invention, the through hole is a stepped hole, the pressure sensor and the reset member are arranged at the large end of the stepped hole, the first end of the pressure column is located at the large end of the stepped hole, the side wall of the first end of the pressure column is formed with a boss, and the boss is used to interfere with the step surface of the stepped hole, and the second end of the pressure column protrudes out of the small end of the stepped hole.
[0011] According to one embodiment of the present invention, a side wall of the hand wheel is formed with an anti-slip groove.
[0012] According to one embodiment of the present invention, it also includes a controller arranged on the mounting seat, the controller includes a data processing module and a data storage module communicatively connected to the data processing module, and all the pressure sensors are communicatively connected to the data processing module.
[0013] According to one embodiment of the present invention, it further includes an alarm, and the alarm is communicatively connected to the data processing module.
[0014] According to an embodiment of the present invention, a transmission module is further included, and the data processing module is wirelessly connected to the site management center via the transmission module.
[0015] A control method for a coupler clamping device according to a second embodiment of the present invention comprises the following steps:
[0016] Acquiring detection values of all the pressure sensors;
[0017] Determine whether each of the detection values is greater than a preset pressure value, and count the number X of the detection values greater than the preset pressure value, and if X is not less than N-1, continue to obtain the detection value of the pressure sensor; wherein N represents the number of pressure sensors;
[0018] Determine whether each of the detection values is less than a preset pressure value, and count the number Y of the detection values less than the preset pressure value, and if Y is equal to N, activate the alarm;
[0019] It is determined whether each of the detection values is equal to zero, and the number Z of the detection values equal to zero is counted; if Z is greater than zero, the alarm is activated.
[0020] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
[0021] The present invention has a simple structure and is easy to operate. By respectively arranging a plurality of pressure monitoring components on the clamping surfaces of the first clamping claw and the second clamping claw, the coupler extrusion pressure sensor can be used to monitor whether the coupler is clamped when the coupler is clamped by the first clamping claw and the second clamping claw. It can be seen that the present invention not only realizes multi-point monitoring, but also the pressure sensor directly determines whether the coupler is clamped according to the pressure applied by the coupler, which significantly improves the accuracy of the monitoring result.
[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 is a three-dimensional schematic diagram of a coupler clamping device provided by an embodiment of the present invention;
[0025] Figure 2 yes Figure 1 A magnified view at point A;
[0026] Figure 3 is a schematic top view of a coupler clamping device provided by an embodiment of the present invention;
[0027] Figure 4 Schematic diagram of an explosion of a pressure monitoring assembly provided in an embodiment of the present invention.
[0028] Reference numerals:
[0029] 100, mounting seat; 200, movable shaft; 300, sleeve; 400, first clamping claw; 500, second clamping claw; 600, hand wheel; 601, anti-slip groove; 700, pressure monitoring component; 710, pressure column; 711, boss; 720, reset member; 730, pressure sensor; 740, elastic protective member; 750, screw plug; 800, controller. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the invention clearer, the technical solution in the invention will be clearly described below in conjunction with the drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.
[0031] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.
[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0035] Combination Figures 1 to 4 As shown, an embodiment of the present invention provides a coupler clamping device, which includes a mounting seat 100, a movable shaft 200, a sleeve 300, a first clamping claw 400, a second clamping claw 500 and a plurality of pressure monitoring components 700. The mounting seat 100 is formed with a mounting groove for fixing the sleeve 300, and the side wall of the sleeve 300 is connected to the first clamping claw 400; one end of the movable shaft 200 passes through the interior of the sleeve 300 and is threadedly connected to the hand wheel 600, and the other end of the movable shaft 200 is fixedly connected to the second clamping claw 500; the first clamping claw 400 and the second clamping claw 500 are arranged opposite to each other, and a plurality of mounting holes for mounting the pressure monitoring component 700 are opened on the clamping surfaces of the first clamping claw 400 and the second clamping claw 500; the pressure monitoring component 700 includes a pressure column 710 and a pressure sensor 730 and a reset member 720 arranged in the mounting hole, the reset member 720 is arranged between the pressure sensor 730 and the pressure column 710, the first end of the pressure column 710 extends into the mounting hole and is arranged opposite to the contact of the pressure sensor 730, and the second end of the pressure column 710 protrudes out of the mounting hole.
[0036] It should be noted that the "clamping surface" in "the clamping surfaces of the first clamping jaw 400 and the second clamping jaw 500 are both provided with a plurality of installation holes for installing the pressure monitoring assembly 700" generally refers to the opposing surfaces of the first clamping jaw 400 and the second clamping jaw 500, that is, the contact surfaces of the first clamping jaw 400 and the second clamping jaw 500 with the coupler. The first clamping jaw 400 and the second clamping jaw 500 can be provided with the same number of pressure monitoring assemblies 700, or different numbers of pressure monitoring assemblies 700. When the number of pressure monitoring assemblies 700 provided on the first clamping jaw 400 and the second clamping jaw 500 is the same, the pressure monitoring assemblies 700 on the first clamping jaw 400 can be arranged opposite to the pressure monitoring assemblies 700 on the second clamping jaw 500, or they can be arranged alternately.
[0037] When in use, first fix the mounting base 100 on the train. The mounting base 100 can be directly welded to the train or fixed to the train by bolts. Then loosen the hand wheel 600 so that the movable shaft 200 gradually extends out of the sleeve 300 until the space between the second clamping claw 500 and the first clamping claw 400 is sufficient to clamp the hook. Finally, tighten the hand wheel 600 so that the movable shaft 200 gradually retracts into the sleeve 300 until the hook is clamped by the first clamping claw 400 and the second clamping claw 500. Since a plurality of pressure monitoring components 700 are provided on the clamping surfaces of the first clamping claw 400 and the second clamping claw 500, the hook will squeeze the pressure column 710 during the process of the first clamping claw 400 and the second clamping claw 500 gradually clamping the hook. The pressure column 710 moves toward the pressure sensor 730 after receiving the pressure applied by the hook, and then squeezes the pressure sensor 730.
[0038] Take the example that the first clamping claw 400 and the second clamping claw 500 are both provided with two pressure monitoring components 700: if the detection values of at least three of the four pressure sensors 730 are greater than the preset pressure value, it means that the coupler is firmly clamped and there is no risk of falling off. If the detection values of the four pressure sensors 730 are all less than the preset pressure value, it means that the coupler is not clamped by the first clamping claw 400 and the second clamping claw 500, and there is a risk of the coupler falling off. If the detection value of at least one of the four pressure sensors 730 is zero, it also means that the coupler may not be clamped by the first clamping claw 400 and the second clamping claw 500, and there is a risk of the coupler falling off. Among them, the preset pressure value can be obtained through a large number of experiments.
[0039] As can be seen from the above, the coupler clamping device in this embodiment can monitor whether the coupler is clamped by using the coupler squeeze pressure sensor 730 when the coupler is clamped by the first clamping claw 400 and the second clamping claw 500 by respectively arranging a plurality of pressure monitoring components 700 on the clamping surfaces of the first clamping claw 400 and the second clamping claw 500. It can be seen that this embodiment not only realizes multi-point monitoring, but also the pressure sensor 730 directly determines whether the coupler is clamped according to the pressure applied by the coupler, which significantly improves the accuracy of the monitoring result.
[0040] In order to prevent the hand wheel 600 from being over-tightened and causing the coupler to damage the pressure sensor 730, Figure 4 As shown, the pressure monitoring assembly 700 also includes an elastic protective member 740 disposed in the mounting hole, and the elastic protective member 740 is disposed on the side of the pressure sensor 730 facing away from the pressure column 710. The elastic protective member 740 and the reset member 720 may be, but are not limited to, compression springs, for example, they may also be rubber sleeves. When the elastic protective member 740 and the reset member 720 are both compression springs, the stiffness of the elastic protective member 740 is greater than the stiffness of the reset member 720. For example, the wire diameter of the elastic protective member 740 is greater than the wire diameter of the reset member 720.
[0041] Thus, in the process of tightening the hand wheel 600, that is, in the process of the first clamping claw 400 and the second clamping claw 500 gradually clamping the hook, the pressure column 710 gradually moves toward the pressure sensor 730 under the pressure of the hook. As the pressure column 710 moves, the reset member 720 located between the pressure column 710 and the pressure sensor 730 gradually deforms. When the pressure applied by the hook to the corresponding pressure sensor 730 through each pressure column 710 is greater than the preset pressure value, it means that the hook is clamped. After that, if the hand wheel 600 is continued to be tightened, the elastic protective member 740 will gradually deform to form a buffer for the pressure sensor 730 to prevent the pressure sensor 730 from being crushed. On the contrary, in the process of loosening the hand wheel 600, the reset member 720 gradually returns to its original state, thereby driving the pressure column 710 to move in the direction away from the pressure sensor 730, that is, the second end of the pressure column 710 gradually extends out of the mounting hole. At the same time, the elastic protection member 740 will also return to its original state, thereby driving the pressure sensor 730 to move toward the pressure column 710.
[0042] In order to facilitate the installation of the pressure monitoring assembly 700, the mounting hole is a through hole, and a screw plug 750 is threadedly connected to one end of the through hole away from the pressure column 710. Of course, in order to prevent the pressure column 710 from popping out of the mounting hole under the drive of the reset member 720, the through hole is preferably a stepped hole, and the pressure sensor 730 and the reset member 720 are arranged at the large end of the stepped hole. The first end of the pressure column 710 is located at the large end of the stepped hole, and the side wall of the first end of the pressure column 710 is formed with a boss 711, which is used to abut and cooperate with the step surface of the stepped hole, and the second end of the pressure column 710 protrudes out of the small end of the stepped hole. In the process of loosening the hand wheel 600, the pressure column 710 moves in the direction away from the pressure sensor 730 under the drive of the restoring force of the reset member 720. Since a boss 711 is formed at the first end of the pressing column 710, when the boss 711 hits the step surface of the stepped hole during the movement of the pressing column 710, the pressing column 710 cannot continue to move due to the constraint of the step surface, thereby preventing the pressing column 710 from detaching from the mounting hole.
[0043] It should be noted that, in order to prevent the pressure column 710 from being separated from the mounting hole, in addition to the step hole + boss 711 method, the two ends of the reset member 720 can also be connected to the pressure column 710 and the pressure sensor 730 respectively. This method can constrain the movement range of the pressure column 710 with the help of the pressure sensor 730 and the reset member 720. In addition, Figure 1 As shown, the side wall of the hand wheel 600 is formed with an anti-skid groove 601 to prevent the hand wheel 600 from slipping when it is turned.
[0044] like Figure 1As shown, the coupler clamping device also includes a controller 800 arranged on the mounting seat 100, and the controller 800 includes a data processing module and a data storage module that is communicatively connected to the data processing module, and all pressure sensors 730 are communicatively connected to the data processing module. Further, the coupler clamping device also includes an alarm and a transmission module, and the alarm is communicatively connected to the data processing module, and the data processing module is wirelessly connected to the site management center through the transmission module. Among them, the alarm can be but not limited to at least one of a buzzer and a warning light. It should be noted that the data storage module and the pressure sensor 730 can be connected to the mathematical processing module either by wire or by wireless. Thus, each pressure sensor 730 can send the detection value to the data processing module in real time, and the data processing module compares the detection value of each pressure sensor 730 with the preset pressure value, and sends the comparison result to the data storage module and the site management center. The data stored in the data storage module and the site management center can provide data support for the later big data analysis and the improvement of subsequent products.
[0045] In addition, an embodiment of the present invention further provides a control method for a coupler clamping device, the control method comprising the following steps:
[0046] Obtaining detection values of all pressure sensors 730;
[0047] It is determined whether each detection value is greater than a preset pressure value, and the number X of detection values greater than the preset pressure value is counted. If X is not less than N-1, it means that the coupler is clamped by the first clamping claw 400 and the second clamping claw 500, and there is no risk of falling off. At this time, the data processing module can continue to obtain the detection value of the pressure sensor 730; wherein N represents the number of the pressure sensors 730;
[0048] Determine whether each detection value is less than a preset pressure value, and count the number Y of detection values less than the preset pressure value. If Y is equal to N, it means that the coupler is not clamped by the first clamping claw 400 and the second clamping claw 500, and there is a risk of the coupler falling off. At this time, the data processing module controls the alarm to start;
[0049] Determine whether each detection value is equal to zero, and count the number Z of detection values equal to zero. If Z is greater than zero, it means that the coupler may not be clamped by the first clamping claw 400 and the second clamping claw 500, and there is a risk of the coupler falling off. At this time, the data processing module controls the alarm to start.
[0050] The following describes the control method of the coupler clamping device by taking the example that the first clamping claw 400 and the second clamping claw 500 are both provided with two pressure monitoring components 700:
[0051] Obtain detection values of four pressure sensors 730;
[0052] It is determined whether the four detection values are greater than the preset pressure value. If the number of detection values greater than the preset pressure value is equal to 3 or 4, it means that the coupler is clamped by the first clamping claw 400 and the second clamping claw 500, and there is no need to activate the alarm. The data processing module can continue to obtain the detection value of the pressure sensor 730;
[0053] It is determined whether each detection value is less than a preset pressure value. If the number of detection values less than the preset pressure value is equal to 3, it means that the coupler is not clamped by the first clamping claw 400 and the second clamping claw 500, and there is a risk of the coupler falling off. At this time, the data processing module controls the alarm to start;
[0054] It is determined whether each detection value is equal to zero. If the number of detection values equal to zero is at least one, it means that the coupler may not be clamped by the first clamping claw 400 and the second clamping claw 500. At this time, the data processing module controls the alarm to start.
[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the invention rather than to limit it. Although the invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the invention.
Claims
1. A coupler clamping device, characterized in that: The invention comprises a mounting seat, a movable shaft, a sleeve, a first clamping claw, a second clamping claw and a plurality of pressure monitoring components, wherein the mounting seat is formed with a mounting groove for fixing the sleeve, and the side wall of the sleeve is connected with the first clamping claw; one end of the movable shaft passes through the interior of the sleeve and is threadedly connected to the handwheel, and the other end is fixedly connected with the second clamping claw; the first clamping claw and the second clamping claw are arranged opposite to each other, and the clamping surfaces of the first clamping claw and the second clamping claw are provided with a plurality of mounting holes for installing the pressure monitoring components; the pressure monitoring components comprise a pressure column, a pressure sensor and a reset member arranged in the mounting hole, the reset member being arranged between the pressure sensor and the pressure column, the first end of the pressure column extending into the mounting hole and being arranged opposite to the contact of the pressure sensor, and the second end protruding out of the mounting hole; The pressure monitoring assembly further comprises an elastic protective member arranged in the mounting hole, wherein the elastic protective member is arranged on a side of the pressure sensor facing away from the pressure column; the rigidity of the elastic protective member is greater than the rigidity of the reset member; The mounting hole is a through hole, and one end of the through hole away from the pressure column is threadedly connected with a screw plug; the through hole is a stepped hole, and the pressure sensor and the reset member are arranged at the large end of the stepped hole, the first end of the pressure column is located at the large end of the stepped hole, and the side wall of the first end of the pressure column is formed with a boss, and the boss is used to abut and cooperate with the step surface of the stepped hole, and the second end of the pressure column protrudes out of the small end of the stepped hole.
2. The coupler clamping device according to claim 1, characterized in that: The elastic protection member and the reset member are both compression springs.
3. The coupler clamping device according to claim 1, characterized in that: The side wall of the hand wheel is formed with an anti-slip groove.
4. The coupler clamping device according to any one of claims 1 to 3, characterized in that: It also includes a controller arranged on the mounting seat, the controller includes a data processing module and a data storage module communicatively connected to the data processing module, and all the pressure sensors are communicatively connected to the data processing module.
5. The coupler clamping device according to claim 4, characterized in that: It also includes an alarm, which is communicatively connected to the data processing module.
6. The coupler clamping device according to claim 4, characterized in that: It also includes a transmission module, and the data processing module is wirelessly connected to the site management center through the transmission module.
7. A control method for a coupler clamping device as claimed in claim 5, characterized in that: The following steps are involved: Acquiring detection values of all the pressure sensors; Determine whether each of the detection values is greater than a preset pressure value, and count the number X of the detection values greater than the preset pressure value, and if X is not less than N-1, continue to obtain the detection value of the pressure sensor; wherein N represents the number of pressure sensors; Determine whether each of the detection values is less than a preset pressure value, and count the number Y of the detection values less than the preset pressure value, and if Y is equal to N, activate the alarm; It is determined whether each of the detection values is equal to zero, and the number Z of the detection values equal to zero is counted; if Z is greater than zero, the alarm is activated.