CN215064980U

CN215064980U - Load monitoring device, traction device and tractor

Info

Publication number: CN215064980U
Application number: CN202120967418.5U
Authority: CN
Inventors: 韦仲宁; 胡荣辉; 李磊
Original assignee: Guangzhou Xiaopeng New Energy Vehicle Co Ltd
Current assignee: Guangzhou Xiaopeng New Energy Vehicle Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-12-07
Anticipated expiration: 2031-05-07

Abstract

The application relates to a load monitoring device, a traction device and a tractor. The load monitoring device comprises a load measuring unit and a load prompting unit, wherein the load measuring unit is arranged on a vertical stress surface of the traction mechanism and at least used for measuring a vertical load transmitted to the traction mechanism by the trailer; the load prompting unit is connected with the load measuring unit and used for outputting prompts according to the vertical load obtained by the load measuring unit. The application discloses load monitoring device measures the vertical load that drive mechanism received through load measurement unit, via load suggestion unit output vertical load, thereby be convenient for monitor the load information that drive mechanism received, be convenient for in time make the adjustment when the vertical load that drive mechanism received surpasss its load design value, thereby avoid drive mechanism's part to receive to destroy and become invalid, guarantee drive mechanism's normal use function, and then guarantee the normal use of tractor, avoid appearing the incident.

Description

Load monitoring device, traction device and tractor

Technical Field

The application relates to the technical field of vehicles, in particular to a load monitoring device, a traction device and a tractor.

Background

The trailer type transportation of the vehicle is an important transportation mode, has the advantages of rapidness, mobility, flexibility, safety and the like, and can conveniently realize section transportation. Trailer systems for carrying trailer-type transport comprise a tractor and a trailer, wherein the tractor is generally a transport means with a drive capability for towing a trailer without a drive capability.

Trailer systems are largely divided into two main categories, full-trailer and semi-trailer, where the full-trailer tractor provides only forward pulling force to pull the trailer, and the tractor does not bear the vertical load of the trailer. And semi-mounted tractor when drawing the trailer, the trailer articulates in the drive mechanism that the tractor set up, and the vertical load of trailer can transmit on drive mechanism for the tractor needs to bear the partial load of trailer.

In the related art, the target design values of the vertical loads that can be borne by different traction mechanisms are different, and therefore the load-bearing capacities are also different. During the towing of a trailer by a tractor, the vertical load transmitted by the trailer to the towing mechanism may vary, since the weight of the cargo carried by the trailer may vary many times in a short period of time. However, since the vertical load data of the towing position of the towing mechanism cannot be monitored in real time, if the vertical load applied to the towing mechanism exceeds the designed value of the bearable load, the parts of the towing mechanism are damaged or failed, and thus, a safety accident is easily caused when the towing vehicle is pulled on the road.

SUMMERY OF THE UTILITY MODEL

In order to solve or partially solve the problems existing in the related art, the application provides a load monitoring device, a traction device and a tractor, wherein the load monitoring device, the traction device and the tractor can monitor the vertical load information received by the traction mechanism in real time, and are convenient to adjust in time when the vertical load received by the traction mechanism exceeds the load design value.

A first aspect of the present application provides a load monitoring apparatus, comprising:

the load measuring unit is arranged on a vertical stress surface of the traction mechanism and at least used for measuring a vertical load transmitted to the traction mechanism by the trailer;

and the load prompting unit is connected with the load measuring unit and used for outputting a prompt according to the vertical load obtained by the load measuring unit.

In one embodiment, the load prompting unit comprises a processor and a prompter, the processor is respectively connected to the load measuring unit and the prompter, and the processor receives the vertical load measured by the load measuring unit and transmits the vertical load to the prompter.

In one embodiment, the load cell is a load cell; and/or

The load prompting unit comprises at least one of a screen display, a voice prompter and a light prompter, wherein the load prompting unit outputs alarm information according to the fact that the vertical load obtained by the load measuring unit is greater than a preset threshold value.

A second aspect of the present application provides a traction device, comprising a traction mechanism and the load monitoring device according to any of the above embodiments, wherein:

the traction mechanism is used for respectively connecting the tractor and the trailer;

and the load measuring unit is arranged on one side of the vertical stress surface of the traction mechanism.

In one embodiment, the traction mechanism comprises a connecting piece and a mounting seat;

the connecting piece is arranged on the mounting seat and is used for connecting the trailer;

the load measuring unit is arranged on the vertical stress surface of the connecting piece and used for measuring the vertical load borne by the connecting piece.

In one embodiment, the connecting member includes a connecting portion for connecting to the trailer and a fixing rod respectively connected to the connecting portion and the mounting seat, and the load measuring unit is disposed on a side of a vertical force-bearing surface facing away from the connecting portion.

In one embodiment, the connecting member further includes a limiting ring, the limiting ring is sleeved on the fixing rod and located on one side of the vertical force-bearing surface away from the connecting portion, and the load measuring unit is disposed on one side of the limiting ring away from the vertical force-bearing surface and abuts against the limiting ring.

In one embodiment, the load measuring unit is an annular structure, and the diameter of an inner hole of the annular structure is larger than that of the fixing rod.

In one embodiment, the fixing rod is a screw structure, the mounting seat is provided with a mounting hole, and the fixing rod penetrates through the mounting hole and is screwed with the mounting seat.

A third aspect of the present application provides a towing vehicle comprising a towing attachment as described in any of the above embodiments.

The technical scheme provided by the application can comprise the following beneficial effects:

the application discloses load monitoring device measures the vertical load that drive mechanism received through load measurement unit, via load suggestion unit output vertical load, thereby be convenient for monitor the load information that drive mechanism received, be convenient for in time make the adjustment when the vertical load that drive mechanism received surpasss its load design value, thereby avoid drive mechanism's part to receive to destroy and become invalid, guarantee drive mechanism's normal use function, and then guarantee the normal use of tractor, avoid appearing the incident.

According to the technical scheme, a screen display, a voice prompter and/or a light prompter can be further arranged through the load prompting unit, vertical load information is monitored through diversified prompters, and alarm prompting is carried out when the vertical load exceeds the vertical design load of the traction mechanism.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

Fig. 1 is a schematic structural diagram of a tractor and a trailer according to an embodiment of the present application;

FIG. 2 is an enlarged partial schematic view at A shown in FIG. 1;

FIG. 3 is a schematic diagram of a traction device according to an embodiment of the present application;

FIG. 4 is an exploded schematic view of the draft gear shown in FIG. 3;

fig. 5 is an enlarged schematic view of a partial structure of a traction device shown in fig. 3.

Reference numerals: the tractor 10, the towing device 20, the towing mechanism 200, the first connecting bridge 21, the connecting piece 22, the connecting part 221, the fixing rod 222, the limiting ring 223, the mounting seat 23, the mounting hole 230, the nut 231, the load measuring unit 24, the load prompting unit 25, the signal wire 26, the trailer 30 and the second connecting bridge 31.

Detailed Description

Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While embodiments of the present application are illustrated in the accompanying drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the related art, the target design value of the vertical load differs for different traction mechanisms, and therefore the load-bearing capacity also differs. During the towing of a trailer by a tractor, the vertical load transmitted by the trailer to the towing mechanism may vary, since the weight of the cargo carried by the trailer may vary many times in a short period of time. However, since the vertical load data of the towing position of the towing mechanism cannot be monitored in real time, if the vertical load applied to the towing mechanism exceeds the designed value of the load, the parts of the towing mechanism are damaged or failed, and thus, a safety accident is easily caused when the towing vehicle is pulled to the road by the towing mechanism.

In view of the above problems, embodiments of the present application provide a load monitoring device, which can monitor load information of a traction position of a traction mechanism in real time, and facilitate timely adjustment when a vertical load applied to the traction mechanism exceeds a load design value.

The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the present application provides a load monitoring apparatus, which includes a load measuring unit 24 and a load prompting unit 25. Wherein: the load measuring unit 24 is arranged on the vertical stress surface of the traction mechanism 200, and the load measuring unit 24 is at least used for measuring the vertical load transmitted from the trailer 30 to the traction mechanism 200; the load prompting unit 25 is connected to the load measuring unit 24, and the load prompting unit 25 is used for outputting a prompt according to the vertical load measured by the load measuring unit 24.

After the trailer 30 is loaded with goods, when the traction mechanism 200 is connected to the trailer 30, the gravity of the trailer 30 is transmitted to the connection position of the traction mechanism 200 connected to the trailer 30, the gravity is converted into a vertical load action, when the traction mechanism 200 bears the vertical load action, the vertical load vertically acts on a stress surface of the traction mechanism, and the stress surface is the vertical stress surface of the traction mechanism 200. The load measuring unit 24 is arranged on the vertical force-bearing surface, so that the load measuring unit 24 bears the vertical load of the trailer 30, and the vertical load of the vertical force-bearing surface can be measured. In order to output the vertical load information obtained by the load measuring unit 24, the load measuring unit 24 is connected to the load prompting unit 25, and the vertical load information measured by the load measuring unit 24 is transmitted to the load prompting unit 25, and the load prompting unit 25 obtains the vertical load information and outputs the vertical load for prompting.

In conclusion, the load monitoring device of the application measures the vertical load that the drive mechanism received through the load measuring unit, and the vertical load is being exported via the load prompting unit, thereby being convenient for monitor the load information that drive mechanism received, be convenient for in time make the adjustment when the vertical load that drive mechanism received surpassed its load design value, thereby avoid drive mechanism's part to receive destruction and inefficacy, guarantee drive mechanism's normal use function, and then guarantee the normal use of tractor, avoid appearing the incident.

To facilitate visual monitoring of vertical load information, referring to fig. 2, in one embodiment, the load prompting unit 25 includes a processor (not shown) and a prompter (not shown), and the processor is connected to the load measuring unit 24 and the prompter, respectively. The processor receives the vertical load information obtained by the load measuring unit 24 and outputs the vertical load information to the prompter to prompt the operator. Further, the load measuring unit 24 is subjected to vertical deformation under the action of gravity of the traction mechanism 200, the load measuring unit 24 tests to obtain a vertical deformation amount and transmits the vertical deformation amount to the load prompting unit 25, and the processor of the load prompting unit 25 can calculate and obtain a vertical load according to the vertical deformation amount through an algorithm of the related art, so that the vertical load of the traction position of the traction mechanism 200 is determined. And the processor transmits the processed vertical load to the prompter, and the prompter outputs the vertical load value input by the processor.

Referring to FIG. 2, in one embodiment, the load cell 24 may be a load cell; and/or the load prompting unit 25 comprises at least one of a screen display, a voice prompting device and a light prompting device, wherein the load prompting unit 25 outputs alarm information according to the fact that the vertical load obtained by the load measuring unit is greater than a preset threshold value. The predetermined threshold may be a vertical design load of the traction mechanism 200. It will be appreciated that the load cell 24 deforms under the action of a vertical force, and the amount of vertical deformation is obtained by weighing and measuring the force. The processor of the load prompting unit 25 then converts the vertical deformation amount to a more intuitive vertical load. In one embodiment, the prompting device of the load prompting unit 25 may be at least one or more of a screen display, a voice prompting device and a light prompting device. For example, the indicator can display the data of the vertical load through a screen display, or the voice indicator can broadcast the data of the vertical load, or the light indicator adopts lights with different colors or light flashing frequency to indicate the vertical load with different numerical ranges. When the vertical load monitored in real time is larger than the preset threshold value, the prompter further outputs alarm information, and the alarm mode can be different from an expression mode that the vertical load is in a normal range, so that an operator can be reminded of knowing the load-bearing condition of the current traction mechanism 200 in time, and the cargo carrying capacity can be adjusted in time.

Further, referring to fig. 2, to improve the effect of the alarm prompt, the load prompt unit 25 may include a screen display, a voice prompt, and a light prompt at the same time. Wherein, voice prompt and light prompt can be established in different positions separately to improve the warning suggestion effect. When the real-time monitored vertical load is larger than a preset threshold value of the vertical load, a screen display displays a specific vertical load numerical value; the audible prompter may output an alarm sound, such as a siren; the voice prompter can output voice to prompt overload. In other embodiments, the load prompting unit 25 may also include an audible and visual alarm. For example, the sound-light alarm can be a sound-light alarm with the power supply range of 12V-24V, the sound-light alarm integrates a warning lamp and a horn, the light mode of the warning lamp can be selected to be stroboscopic, and the sound loudness of the horn can be selected to be 120 dB, so that the functions of light alarm and sound alarm are provided. Through the arrangement, the load monitoring device can give an alarm when the vertical load exceeds the vertical design load of the traction mechanism 200, so that the vertical load received by the traction mechanism 200 is conveniently adjusted in time when exceeding the design value of the load, and the damage to the parts of the traction mechanism 200 is avoided. The load prompting unit 25 can also make the screen display cooperate with the voice prompter and/or the light prompter, and after the output prompting alarm, the display can obtain the specific load information, and judge and react to the specific load condition of the trailer 30 and the traction mechanism 200, so as to be convenient for timely adjusting when the vertical load applied to the traction mechanism 200 exceeds the load design value.

To output the vertical load information obtained by the load measuring unit 24, referring to fig. 1 and 5, in one embodiment, the load prompting unit 25 is electrically connected to the load measuring unit 24, for example, through a signal line 26. In one embodiment, the load prompting unit 25 and the load measuring unit 24 can be connected in communication via wireless signals, and the load prompting unit 25 can be located at a more convenient location, such as a central display location of the tractor 10, or integrated into a central control panel, so as to facilitate the viewing of the load condition of the towing mechanism 200.

Referring to fig. 1 and 2, the present embodiment provides a traction device 20, where the traction device 20 includes a traction mechanism 200 and a load monitoring device of any of the embodiments described above. Wherein the towing mechanism 200 is used for connecting the tractor 10 and the trailer 30 respectively; the load measuring unit 24 is provided on one side of the vertical force-receiving surface of the traction mechanism 200. The towing mechanism 200 is provided at the rear end of the tractor 10 for connecting with the trailer 30, so that the tractor 10 can tow the trailer 30 to run through the towing mechanism 200.

In the towing apparatus 20 of the present embodiment, the load measuring unit 24 is installed on the towing mechanism 200 connecting the tractor 10 and the trailer 30, so as to obtain the vertical load information of the towing position of the towing mechanism 200, and transmit the obtained vertical load information to the load prompting unit 25, and the load prompting unit 25 displays the vertical load information. Therefore, the vertical load information of the traction position of the traction mechanism 200 can be monitored in real time, adjustment can be made in time when the vertical load received by the traction mechanism 200 exceeds the load design value, damage or failure of parts of the traction mechanism 200 is avoided, the use function of the traction mechanism 200 is guaranteed, normal use of the tractor 10 is guaranteed, and safety accidents are avoided.

Referring to fig. 1-3, in one embodiment, the towing mechanism 200 includes a link 22 and a mount 23. Wherein, the connecting member 22 is disposed on the mounting seat 23, the connecting member 22 is used for connecting the trailer 30, and the load measuring unit 24 is disposed on a vertical force-bearing surface of the connecting member 22 for measuring a vertical load carried by the connecting member 22. In one embodiment, the towing mechanism 200 further comprises a first connecting bridge 21. Wherein the first connecting bridge 21 connects the tractor 10 and the mounting seat 23, respectively. In one embodiment, the connecting member 22 is coupled to the mounting seat 23 by a screw or an adhesive. The connecting element 22 is used for connecting a second connecting bridge 31 of the trailer 30, so that the traction mechanism 200 is connected with the trailer 30 through the connecting element 22; by connecting the coupling element 22 to the second coupling bridge 31 of the trailer 30, the vertical load of the trailer 30 is transferred to the coupling element 22 via the second coupling bridge 31, so that the coupling element 22 bears the vertical load of the trailer 30.

Referring to fig. 4, in one embodiment, the connecting member 22 includes a connecting portion 221 and a fixing rod 222, the connecting portion 221 is used for connecting to the trailer 30, the fixing rod 222 is connected to the connecting portion 221 and the mounting seat 23, respectively, and the load measuring unit 24 is disposed on a side of a vertical force-bearing surface facing away from the connecting portion 221.

In one embodiment, the connecting portion 221 and the fixing rod 222 may be mechanically connected or integrally formed. In one embodiment, the connection 221 is connected to the trailer 30 and bears the vertical load of the trailer 30. In one embodiment, the connection portion 221 may have a spherical structure.

In one embodiment, the connection portion 221 is connected to the second connecting bridge 31 of the trailer 30, and the connection portion 221 may be a trailer hitch ball. Referring to fig. 3, in one embodiment, the load measuring unit 24 is installed on a side of the vertical force-bearing surface away from the connecting portion 221, so that the vertical load carried by the connecting portion 221 can be directly measured. In order to enable the load measuring unit 24 to obtain more accurate measurement information, in one embodiment, the load measuring unit 24 is provided as an annular structure, and the load measuring unit 24 abuts against the vertical force bearing surface of the connecting member 22 and is circumferentially arranged along the connecting portion 221. By being arranged around the connecting portion 211, vertical load information of each direction or angle can be obtained when vertical load of the connecting portion 211 acts on the connecting portion to improve measurement accuracy.

Referring to fig. 4 and 5, in one embodiment, the connecting member 22 may further include a limiting ring 223, the limiting ring 223 is sleeved on the fixing rod 222 and is located on a side of the vertical force-bearing surface away from the connecting portion 221, and the load measuring unit 24 is disposed on a side of the limiting ring 223 away from the vertical force-bearing surface and abuts against the limiting ring 223. It can be understood that the limit ring 223 is disposed around the fixing rod 222, and the limit ring 223 is disposed between the connecting portion 221 and the load measuring unit 24, so that the connecting portion 221 is pressed on the limit ring 223, and the vertical load applied to the connecting portion 221 is transmitted to the limit ring 223 and transmitted to the load measuring unit 24 through the limit ring 223. The connecting part 221 and the load measuring unit 24 are separated by the limiting ring 223, so that friction between the load measuring unit 24 and the connecting part 221 in the using process can be avoided, the structure of the load measuring unit 24 can be protected from being abraded, and the accuracy of a detection result is ensured. In one embodiment, the load cell 24 is a ring structure having an inner hole with a diameter larger than that of the fixing rod 222, so that the fixing rod 222 can pass through the inner hole of the ring structure to achieve a fit connection with the mounting seat 23.

Referring to fig. 4 and 5, further, in order to fix the connecting member 22 to the mounting seat 23, in one embodiment, the fixing rod 222 is a screw structure, the mounting seat 23 is provided with a mounting hole 230, and the fixing rod is inserted through the mounting hole and screwed to the mounting seat. Mount 23 also includes nut 231. The fixing rod 222 is inserted into the mounting hole 230, and the nut 231 fixes the fixing rod 222 to the mounting seat 23. Specifically, in one embodiment, the axial length of the fixing rod 222 is greater than the hole depth of the mounting hole 230, the fixing rod 222 passes through and is exposed out of the mounting hole 230, and the exposed portion of the fixing rod 222 is fixed by screwing with the nut 231. In one embodiment, the inner sidewall of the mounting hole 230 of the mounting seat 23 may be provided with an internal thread, so that the fixing rod 222 and the fixing rod 222 can be connected through the thread, thereby increasing the screwing area of the fixing rod 222 and the mounting seat and improving the connection stability of the fixing rod and the mounting seat. In other embodiments, the fixing rod 222 is detachably connected to the mounting seat 23, such as a threaded connection, a snap connection, or the like. In other embodiments, the fixing rod 222 and the mounting seat 23 may also be fixedly connected, such as by bonding, welding, etc.

In order to make the load measuring unit 24 better measure the vertical load applied to the connecting portion 221, in one embodiment, the diameter of the connecting portion 221 is larger than that of the fixing rod 222, the connecting portion 221 is exposed out of the mounting hole 230, and the load measuring unit 24 is sleeved on the fixing rod 222 and abuts against the vertical force-bearing surface of the connecting portion 221 in a surrounding manner, so that after the fixing rod 222 is installed in the mounting seat 23, the connecting portion 221 can act on the load measuring unit 24 abutting against the vertical force-bearing surface thereof. For example, the load measuring unit 24 is installed between the mounting seat 23 and the connecting portion 221, and after the vertical load received by the connecting portion 221 is transmitted to the load measuring unit 24, the load is transmitted from the load measuring unit 24 to the mounting seat 23, and the entire traction mechanism 200 receives a force. With this arrangement, the measurement object of the load measuring unit 24 can be made more accurate. It will be appreciated that the annular ring of the stop collar 223 of the connector 22 is adapted to the inner bore of the load cell 24 and the mounting bore 230 of the mounting block 23. To obtain more accurate measurement data, in one embodiment, the load cell 24 may be an annular washer load cell, with an annular inner bore of the load cell 24 corresponding to the mounting hole 230. In one embodiment, to improve the strength and corrosion resistance of the load cell 24 during use to ensure accurate detection results of the load cell 24, the load cell 24 may be made of stainless steel.

Further, in one embodiment, the load prompting unit 25 may be disposed on the mounting seat 23, so that the load prompting unit 25 and the load measuring unit 24 are disposed at close positions, which can effectively save the layout space and shorten the length of the signal line 26 for electrical connection. In one embodiment, the load prompting unit 25 may be hung on the outer sidewall of the mounting seat 23 through the signal line 26, or may be adhered to the outer sidewall of the mounting seat 23 in an adhering manner, so that the mounting seat 23, the load measuring unit 24, the limiting ring 223, the connecting member 22, and the load prompting unit 25 are intensively disposed.

For easy understanding, referring to fig. 1 to 5 together, when the connecting member 22 is assembled with the mounting seat 23, the fixing rod 222 of the connecting member 22 is inserted into the annular hole of the limiting ring 223, passes through the inner hole of the load measuring unit 24, and enters the mounting hole 230 of the mounting seat 23. The fixing rod 222 can be connected with a thread formed in the mounting seat 23 in a matching manner, specifically, the fixing rod 222 passes through and is exposed out of the mounting hole 230 of the mounting seat 23, and the exposed part of the fixing rod 222 is screwed by the nut 231, so that the connection between the connecting piece 22 and the mounting seat 23 is reliable; after the fixing rod 222 is connected and matched with the mounting seat 23, the connecting part 221 integrally connected with the fixing rod 222 is pressed on the limiting ring 223, and meanwhile, the load measuring unit 24 is tightly abutted to the limiting ring 223. When the towing mechanism 200 is connected to the trailer 30, the connection 221 is connected to the second connecting bridge 31 of the trailer 30. The vertical load action of the trailer 30 is transmitted to the connecting portion 221 through the second connecting bridge 31, the connecting portion 221 is transmitted to the load measuring unit 24 through the limit ring 223, when the load measuring unit 24 bears the vertical load action of the connecting portion 221, deformation occurs under the load action, the vertical deformation is output to the load prompting unit 25, and the load prompting unit 25 displays and outputs the vertical load action, so that the vertical load information of the connecting portion 221 is acquired and displayed and output.

In accordance with the foregoing embodiments, and with reference to fig. 1, the present application further provides a tractor 10, the tractor 10 including the traction devices of the various embodiments described above. The tractor 10 and the trailer 30 are connected by the traction device 20, respectively, so that the tractor 10 can be connected with the trailer 30, and the trailer 30 can be pulled by the tractor 10 through the traction device 20.

Referring to fig. 2, the tractor 10 of the present embodiment is provided with the traction device 20, so that the traction device 20 can pull the trailer 30, and the load measuring unit 24 is provided to be matched with the connecting member 22, so that the load measuring unit 24 can obtain vertical load information of the connecting member 22; through setting up the load prompting unit 25 that is connected with load measuring unit 24, can real-time supervision drive mechanism 200's the load information of pulling the position, be convenient for in time make the adjustment when the vertical load that drive mechanism 200 received surpasss its load design value to avoid drive mechanism 200's part to destroy or lose efficacy, guarantee drive mechanism 200's service function, and then guarantee tractor 10's normal use, avoid appearing the incident.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A load monitoring device, comprising:

2. The load monitoring device of claim 1, wherein:

the load prompting unit comprises a processor and a prompter, the processor is respectively connected with the load measuring unit and the prompter, and the processor receives the vertical load measured by the load measuring unit and transmits the vertical load to the prompter.

3. The load monitoring device of claim 1, wherein:

the load measuring unit is a weighing force measuring sensor; and/or

4. A draft gear, characterized by: a load monitoring device comprising a traction mechanism and any one of claims 1 to 3, wherein:

5. The towing attachment in accordance with claim 4, wherein: the traction mechanism comprises a connecting piece and a mounting seat;

6. The towing attachment in accordance with claim 5, wherein: the connecting piece includes connecting portion and dead lever, connecting portion be used for connect in the trailer, the dead lever connect respectively in connecting portion with the mount pad, load cell locates and deviates from one side of the vertical stress surface of connecting portion.

7. The towing attachment in accordance with claim 6, wherein: the connecting piece further comprises a limiting ring, the limiting ring is sleeved on the fixed rod and located on one side of the vertical stress surface deviating from the connecting portion, and the load measuring unit is arranged on one side of the limiting ring deviating from the vertical stress surface and is abutted against the limiting ring.

8. The towing attachment in accordance with claim 6, wherein: the load measuring unit is of an annular structure, and the diameter of an inner hole of the annular structure is larger than that of the fixing rod.

9. The towing attachment in accordance with claim 6, wherein: the dead lever is screw rod structure, the mounting hole has been seted up to the mount pad, the dead lever wears to locate the mounting hole and spiro union in the mount pad.

10. Tractor, characterized in that it comprises a traction device according to any one of claims 4 to 9.