Auxiliary escaping device for tractor and farming tractor

Abstract

The embodiment of the utility model provides a tractor escape assisting device and a farming tractor, and the tractor escape assisting device comprises a connecting piece which comprises a first connecting part and a second connecting part; the first connecting part is used for being connected to a hub of a tractor wheel; the second connecting part is cylindrical and is vertical to the first connecting part in the length direction; the second connecting part is connected with the first connecting part; via holes are formed in the two opposite side walls of the second connecting part respectively, connecting lugs are arranged on the two sides of each via hole, and connecting holes are formed in the connecting lugs; the supporting piece sequentially penetrates through the two via holes in the second connecting part and is connected with the connecting holes in the connecting lugs; when the escape device is in a working state, an acute angle is formed between the extending direction of the supporting piece and the first connecting part, and the distance between the projection of the supporting piece in the extending plane of the first connecting part and the supporting piece is gradually increased in the direction away from the connecting piece. The auxiliary escape device for the tractor provided by the embodiment of the utility model can realize self-rescue and escape of the tractor, and can avoid a farming mechanism behind.

Description

Technical Field

[0001] The present application relates to agricultural machinery technology, and in particular to a tractor auxiliary escape device and an agricultural tractor. Background Art

[0002] Agricultural tractors are widely used in rural areas of my country, driving the rapid development of mechanized farming. However, even with four-wheel drive, tractors can still slip when stuck in small muddy areas. The wheels can sink deeper and deeper under the driving force, making it impossible to free the tractor on its own. The tractor can only be dug out with the help of an excavator or towed by another tractor, which is time-consuming and labor-intensive.

[0003] In addition, there are large mechanisms such as rotary tillers at the rear of agricultural tractors, which take up a large space. It is very difficult to install a mechanism on the tractor that can escape on its own. Summary of the Invention

[0004] In order to solve one of the above-mentioned technical defects, an embodiment of the present application provides a tractor auxiliary escape device and a farming tractor.

[0005] According to a first aspect of an embodiment of the present application, a tractor-assisted escape device is provided, comprising:

[0006] The connecting member includes: a first connecting portion and a second connecting portion; the first connecting portion is used to connect to the wheel hub of the tractor wheel, and the extension plane of the first connecting portion is in the same direction as the front-to-back direction of the tractor; the second connecting portion is cylindrical, and the length direction of the second connecting portion is perpendicular to the first connecting portion; one end of the second connecting portion is connected to the first connecting portion; through holes are respectively provided on opposite side walls of the second connecting portion, and connecting ears are provided on both sides of each through hole, and the connecting ears are provided with connecting holes;

[0007] Support member; one end of the support member passes through the two through holes on the second connecting part in sequence, and is connected to the connecting holes on the connecting ears corresponding to the through holes; when the escape device is in working state, the extension direction of the support member forms an acute angle with the first connecting part, and along the direction away from the connecting member, the distance between the projection of the support member in the extension plane of the first connecting part and the support member gradually increases.

[0008] According to a second aspect of an embodiment of the present application, there is provided an agricultural tractor, comprising: the tractor auxiliary escape device as described above; the auxiliary escape device is arranged on the outer side of the wheel hub of the agricultural tractor.

[0009] The technical solution provided in the embodiment of the present application adopts a connecting member and a supporting member, wherein the connecting member includes: a first connecting part and a second connecting part; the first connecting part is used to connect to the hub of the tractor wheel, and the extension plane of the first connecting part is the same as the front and rear direction of the tractor; the second connecting part is cylindrical, and the length direction of the second connecting part is perpendicular to the first connecting part; one end of the second connecting part is connected to the first connecting part; the opposite side walls of the second connecting part are respectively provided with through holes, and connecting ears are provided on both sides of each through hole, and a connecting hole is provided on the connecting ear; one end of the support member passes through the two through holes on the second connecting part in sequence and is connected to the connecting holes on the connecting ears corresponding to the through holes; when the escape device is in working state, the extension direction of the support member is at an acute angle to the first connecting part, and along the direction away from the connecting member, the distance between the projection of the support member in the extension plane of the first connecting part and the support member gradually increases, so that the escape device is installed on the wheel hub and the support member extends to the outside of the tractor to avoid agricultural mechanisms such as rotary tillers behind the tractor. In addition, during the normal driving process of the tractor, the wheels are driven out of the mud pit with the support force of the support parts inserted into the ground, thereby achieving self-rescue. It does not require manual digging, excavator digging or traction of other vehicles. It is simple, fast and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0011] Figure 1 A schematic structural diagram of a tractor provided with an auxiliary escape device according to an embodiment of the present application;

[0012] Figure 2 A schematic diagram from a top view of a tractor provided with an auxiliary escape device according to an embodiment of the present application;

[0013] Figure 3 A schematic structural diagram of an auxiliary escape device provided in an embodiment of the present application;

[0014] Figure 4 A schematic structural diagram of an auxiliary escape device provided in an embodiment of the present application from another angle;

[0015] Figure 5 A schematic structural diagram of a connecting member in an auxiliary escape device provided in an embodiment of the present application;

[0016] Figure 6 A schematic structural diagram of a connecting member in an auxiliary escape device provided in an embodiment of the present application from another angle;

[0017] Figure 7A schematic structural diagram of a support member in an auxiliary escape device provided in an embodiment of the present application;

[0018] Figure 8 A schematic structural diagram of another auxiliary escape device provided in an embodiment of the present application;

[0019] Figure 9 A schematic structural diagram of another auxiliary escape device provided in an embodiment of the present application from another angle;

[0020] Figure 10 A schematic structural diagram of a connecting member in another auxiliary escape device provided in an embodiment of the present application;

[0021] Figure 11 A schematic structural diagram of a connecting member from another angle in another auxiliary escape device provided in an embodiment of the present application;

[0022] Figure 12 A schematic diagram of the structure of the supporting member in the retracted state in the auxiliary escape device provided in an embodiment of the present application;

[0023] Figure 13 A schematic structural diagram of another support member provided in an embodiment of the present application;

[0024] Figure 14 A schematic structural diagram of another connector provided in an embodiment of the present application.

[0025] Reference numerals:

[0026] 1-connector; 11-first connecting portion; 111-hub connecting hole; 12-second connecting portion; 121-through hole; 122-connecting ear; 123-connecting hole;

[0027] 2-support member; 21-first side plate; 211-bolt hole; 22-second side plate; 23-first square tube; 24-second square tube; 25-pin hole; 26-connecting pin; 27-support member ear plate; 28-support member ear plate connecting hole;

[0028] 3-wheel hub;

[0029] 4-Agricultural institutions. DETAILED DESCRIPTION

[0030] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0031] This embodiment provides a tractor escape assist device that can be used in tractors, particularly agricultural tractors. When the wheels of an agricultural tractor get stuck in a mud pit, the escape assist device can be used to support the tractor on the ground, allowing the tractor to escape from the mud pit using its own driving force, thus achieving rapid self-rescue.

[0032] like Figures 1 to 4 As shown, the tractor-assisted escape device provided in this embodiment includes: a connector 1 and a support member 2. The connector 1 is used to connect to the wheel hub 3 of the tractor wheel. Agricultural tractors usually have four wheels, and the device can be installed on any wheel. The connector 1 can be installed on the wheel hub all the time, or it can be installed when the vehicle gets stuck in a mud pit. The connector 1 and the support member 2 can be detachably connected. If the connector 1 is installed on the wheel hub all the time, the support member 2 can be installed separately when the vehicle gets stuck in a mud pit. Alternatively, when the vehicle gets stuck in a mud pit, the connector 1 and the support member 2 can be installed on the wheel hub.

[0033] The above-mentioned escape device can be installed on the front wheel of the tractor, or it can be installed on the rear wheel of the tractor. Taking the rear wheel as an example, it can be installed on only one of the rear wheels, or it can be installed on both rear wheels. Figure 1 and Figure 2 It demonstrates that both rear wheels of the tractor are equipped with escape devices.

[0034] like Figure 5 and Figure 6 As shown, the connector 1 includes a first connecting portion 11 and a second connecting portion 12. The first connecting portion 11 is used to connect to the wheel hub 3. The extension plane of the first connecting portion 11 is aligned with the front-to-back direction of the tractor, meaning that the first connecting portion 11 is parallel to the surface of the wheel hub. Specifically, the first connecting portion 11 can be a plate-like structure with mounting holes defined therein for connection to the wheel hub via bolts.

[0035] The second connecting portion 12 is cylindrical and connects to the first connecting portion 11 in a direction perpendicular to the length of the second connecting portion 12. The sidewall of the second connecting portion 12 is provided with two through-holes 121, which are arranged opposite each other. Each through-hole 121 is provided with connecting ears 122 on both sides, and each connecting ear 122 is provided with a connecting hole 123.

[0036] One embodiment is: at least two smaller connecting ears 122 are respectively provided on both sides of each through hole 121, and the connecting ears 122 are spaced apart along the length direction of the second connecting portion 12. A connecting hole 123 is provided on each connecting ear 122. Figures 3 to 6 )

[0037] Another embodiment is: a larger connecting ear 122 is provided on each side of each through hole 121, and at least two connecting holes 123 are provided on the connecting ear 122. The connecting holes 123 are arranged in sequence along the length direction of the second connecting portion 12. Figures 8 to 11 )

[0038] One end of the support member 2 passes through the two through holes 121 on the second connection part 12 in sequence and is connected to the connection hole 123 on the connection ear 122 corresponding to the through hole 121. Appropriate connection holes 122 can be connected so that when the escape device is in the working state, the extension direction of the support member 2 forms an acute angle with the first connection part 11, and the distance between the projection of the support member 2 in the extension plane of the first connection part 11 and the support member 2 gradually increases as it moves away from the connection member. Figure 2 As shown, escape devices are respectively installed on the two rear wheels of the tractor, wherein the support member 2 extends toward the rear side of the tractor and at the same time extends toward the outside of the tractor, so as to avoid the farming mechanism 4 such as the rotary tiller behind the tractor.

[0039] When a tractor's rear wheel gets stuck in a mud pit, the escape device is installed on the rear wheel hub 3. The tractor is then driven forward or backward. When the tractor is driven forward, the escape device rotates forward with the hub 3 until it reaches the front of the mud pit and is inserted into the ground for support. The supporting force of the escape device allows the rear wheel to be driven out of the mud pit. When the tractor is driven backward, the escape device rotates backward with the hub 3 until it reaches the rear of the mud pit and is inserted into the ground for support. The supporting force of the escape device allows the rear wheel to be driven out of the mud pit.

[0040] The technical solution provided in this embodiment adopts a connecting member and a supporting member, wherein the connecting member includes: a first connecting part and a second connecting part; the first connecting part is used to connect to the hub of the tractor wheel, and the extension plane of the first connecting part is the same as the front and rear direction of the tractor; the second connecting part is cylindrical, and the length direction of the second connecting part is perpendicular to the first connecting part; one end of the second connecting part is connected to the first connecting part; the opposite side walls of the second connecting part are respectively provided with through holes, and connecting ears are provided on both sides of each through hole, and connecting holes are provided on the connecting ears; one end of the support member passes through the two through holes on the second connecting part in turn and is connected to the connecting holes on the connecting ears corresponding to the through holes; when the escape device is in working state, the extension direction of the support member is at an acute angle to the first connecting part, and along the direction away from the connecting member, the distance between the projection of the support member in the extension plane of the first connecting part and the support member gradually increases, so that the escape device is installed on the wheel hub and the support member extends to the outside of the tractor to avoid agricultural mechanisms such as rotary tillers behind the tractor. In addition, during the normal driving process of the tractor, the wheels can be driven out of the mud pit with the help of the supporting force of the support parts inserted into the ground, thereby achieving self-rescue. It does not need to rely on manual digging, excavator digging or traction of other vehicles. It is simple, fast and low-cost.

[0041] Based on the above technical solution, this embodiment provides an implementation of a connector 1: the first connecting portion 11 is circular and plate-shaped, and the second connecting portion 12 is cylindrical. The diameter of the first connecting portion 11 is equal to the outer diameter of the second connecting portion 12. The end of the second connecting portion 12 is connected to the first connecting portion 11, forming a structure with one end closed and the other end open.

[0042] Alternatively, the first connection portion 11 may be a rectangular plate, a polygonal plate, etc., and the cross section of the second connection portion 12 may be rectangular, polygonal, etc., or may be the same shape as the first connection portion 11 .

[0043] Furthermore, the first connecting portion 11 is provided with a plurality of connecting holes for connecting to the wheel hub, specifically the wheel hub connecting holes 111. The plurality of wheel hub connecting holes 111 are arranged at intervals and each wheel hub connecting hole 111 is arranged in a circle, that is, the centers of each wheel hub connecting hole 111 are on the same circle.

[0044] The hub connection hole 111 can be as follows Figure 14 The circular hole shown can also be Figure 5 or Figure 10 shape shown or other shapes.

[0045] Based on the above technical solution, this embodiment provides an implementation method: Figures 3 to 6 As shown, three pairs of connecting lugs 122 are provided on both sides of each through-hole 121. The three pairs of connecting lugs 122 are spaced apart along the length of the second connecting portion 12. The connecting lugs 122 are plate-shaped and have connecting holes 123 defined therein. The support member 2 has corresponding bolt holes, and bolts are passed through the bolt holes in the support member 2 and the bolt holes in the connecting lugs 122, respectively, to connect the support member 2 to the connecting member 1.

[0046] like Figure 4 As shown in FIG. , the three connecting ears 122 on the left side of the second connecting portion 12 are, from top to bottom, connecting ears 122a, 122b, and 122c; the three connecting ears 122 on the right side of the second connecting portion 12 are, from top to bottom, connecting ears 122d, 122e, and 122f. The support member 2 is connected to either the left connecting ear 122a or 122b and to the right connecting ear 122f, allowing the support member 2 to extend outward from the tractor to avoid the farming mechanism 4 behind the tractor. Alternatively, if the farming mechanism 4 is smaller, the left connecting ear 122c and the right connecting ear 122f can be connected.

[0047] Another implementation method: Figures 8 to 11As shown, a larger connecting ear 122 is provided on both sides of each through hole 121 , and three connecting holes 123 are provided on the connecting ear 122 . The three connecting holes 123 are arranged at intervals along the length direction of the second connecting portion 12 .

[0048] like Figure 9 As shown in the angle, the connecting ear 122 on the left side of the second connecting part 12 is provided with connecting holes 123a, 123b, and 123c; the connecting ear 122 on the right side of the second connecting part 12 is provided with connecting holes 123d, 123e, and 123f. The support member 2 is connected to the connecting hole 123a or 123b on the left side, and is connected to the connecting hole 123f on the right side, so that the support member 2 can extend toward the outside of the tractor to avoid the farming mechanism 4 behind the tractor. Alternatively, when the volume of the farming mechanism 4 is small, the connecting hole 123c on the left side and the connecting hole 123f on the right side can also be connected. It should be noted that: Figure 9 The connecting member 1 and the supporting member 2 are connected together by fasteners such as bolts. The positions indicated by 123b and 123f in the figure are both provided with fasteners, but in this embodiment Figure 9 123b and 123f refer to connection holes.

[0049] Based on the above technical solution, the support member 2 can be a round rod or a square rod. Figure 7 As shown, the support member 2 in this embodiment is a tubular structure with a rectangular cross-section. Specifically, it is formed by two first side panels 21 and two second side panels 22, forming a hollow rectangular tube. The two first side panels 21 are parallel and correspond to the short sides of the rectangle, while the two second side panels 22 are parallel and correspond to the long sides of the rectangle. The first side panels 21 are provided with bolt holes 211 for connecting to the connecting ears 122.

[0050] The second side plate 22 of the support member 2 is provided with a plurality of bolt holes 211, which are spaced apart along the length of the support member 2. By connecting different bolt holes 211 to the connecting lugs 122, the extended length of the support member 2 can be adjusted to accommodate wheels of different diameters and floors of varying hardness, allowing the support member 2 to be inserted into the ground and provide support.

[0051] Based on the above technical solution, this embodiment provides another implementation: the support member 2 includes a first square tube 23 and a second square tube 24. The first square tube 23 is connected to the connector 1, that is, the first square tube 23 is inserted into the through hole 121 and connected to the connecting ear 122. The second square tube 24 is retractably inserted into the other end of the first square tube 23. The length of the support member 2 can be adjusted by adjusting the extension of the second square tube 24 from the first square tube 23 to accommodate wheels of different diameters and floors of varying hardness.

[0052] Furthermore, pin holes 25 are provided at the ends of the first square tube 23 and the second square tube 24, respectively. Connecting pins 26 are inserted into the corresponding pin holes in the first square tube 23 and the second square tube 24 to connect the first square tube 23 and the second square tube 24. The second square tube 24 is provided with multiple pin holes 25, arranged sequentially along its length. Different pin holes 25 are connected to the corresponding first square tube 23 to adjust the length of the second square tube 24 extending from the first square tube 23.

[0053] One implementation method is to set multiple pin holes 25 on the first square tube 23 and one pin hole 25 on the second square tube 24; another implementation method is to set one pin hole 25 on the first square tube 23 and multiple pin holes 25 on the second square tube 24, both of which can meet the installation requirements.

[0054] When the rescue work is in progress, the second square tube 24 is extended from the first square tube 23, as shown in FIG. Figure 4 As shown, the second square tube 24 is inserted into the ground to assist the tractor in getting out of trouble; when not working, the second square tube 24 is retracted into the first square tube 23, as shown in FIG. Figure 12 shown.

[0055] In the above solution, holes are directly opened on the side plates of the support member 2 so as to be connected to the connecting member 1 by bolts. This embodiment also provides another solution, such as Figure 13 As shown, a support ear plate 27 is welded on the support member 2 , and a support ear plate connecting hole 28 is provided on the support ear plate 27 , through which the support ear plate is connected to the connecting member 1 .

[0056] like Figure 14 As shown, based on the above solution, the structure of the connecting member 1 is further improved, and the ring structure of the second connecting portion 12 away from the first connecting portion 11 is cancelled, which can simplify the structure.

[0057] On the basis of the above technical solutions, this embodiment further provides an agricultural tractor, comprising the tractor auxiliary escape device provided in any of the above contents, wherein the auxiliary escape device is arranged on the outer side of the wheel hub of the agricultural tractor.

[0058] The specific implementation of the agricultural tractor provided in this embodiment can refer to the above content, and has the same technical effect as the above-mentioned auxiliary escape device.

[0059] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0061] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0062] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0063] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A tractor-assisted escape device, characterized in that: include: Connectors; The connecting member includes: a first connecting portion and a second connecting portion; the first connecting portion is used to connect to the wheel hub of the tractor wheel, and the extension plane of the first connecting portion is in the same direction as the front-to-back direction of the tractor; the second connecting portion is cylindrical, and the length direction of the second connecting portion is perpendicular to the first connecting portion; one end of the second connecting portion is connected to the first connecting portion; through holes are respectively provided on opposite side walls of the second connecting portion, and connecting ears are provided on both sides of each through hole, and the connecting ears are provided with connecting holes; Support member; one end of the support member passes through the two through holes on the second connecting part in sequence, and is connected to the connecting holes on the connecting ears corresponding to the through holes; when the escape device is in working state, the extension direction of the support member forms an acute angle with the first connecting part, and along the direction away from the connecting member, the distance between the projection of the support member in the extension plane of the first connecting part and the support member gradually increases.

2. The tractor-assisted escape device according to claim 1, characterized in that: Three pairs of connecting ears are arranged on both sides of each through hole, and the three pairs of connecting ears are arranged at intervals along the length direction of the second connecting portion.

3. The tractor-assisted escape device according to claim 2, characterized in that: The connecting ear is plate-shaped and is provided with three connecting holes, which are spaced apart along the length direction of the second connecting portion.

4. The tractor-assisted escape device according to claim 1, characterized in that: The first connecting part is in the shape of a circular plate, and the second connecting part is in the shape of a cylinder; the diameter of the first connecting part is equal to the outer diameter of the second connecting part.

5. The tractor-assisted escape device according to claim 4, characterized in that: The first connecting portion is provided with a plurality of connecting holes for connecting to the wheel hub, the plurality of connecting holes are arranged at intervals and the centers of the connecting holes are on the same circle.

6. The tractor-assisted escape device according to claim 3, characterized in that: The support member is a tubular structure with a rectangular cross-section, which is surrounded by two first side panels and two second side panels. The two first side panels are parallel and correspond to the short sides of the rectangle, and the two second side panels are parallel and correspond to the long sides of the rectangle; bolt holes are set on the first side panels to connect with the connecting ears.

7. The tractor-assisted escape device according to claim 6, characterized in that: A plurality of bolt holes are provided on the second side plate of the support member, and the plurality of bolt holes are arranged at intervals along the length direction of the support member.

8. The tractor-assisted escape device according to claim 6, characterized in that: The support components include: A first square tube and a second square tube; one end of the first square tube is inserted into the through hole and connected to the connecting ear; the second square tube is telescopically inserted into the other end of the first square tube.

9. The tractor-assisted escape device according to claim 8, characterized in that: The ends of the first square tube and the second square tube are respectively provided with pin holes, and the first square tube and the second square tube are connected together by inserting a connecting pin into the pin holes of the first square tube and the pin holes of the second square tube respectively.

10. An agricultural tractor, characterized in that: include: The tractor-assisted escape device according to any one of claims 1 to 9; The auxiliary escape device is arranged on the outer side of the wheel hub of the agricultural tractor.

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