Pull connecting device, pull device and tractor

Abstract

The utility model provides a pull connecting device, a pull device and a tractor. A pull connecting device comprises a connecting device body, a guide rail used for being connected with a pull supporting frame is installed on one side of the connecting device body, a plurality of pin shafts used for being connected with the pull supporting frame are installed on the guide rail, and a traction pin used for being connected with a machine tool in a hanging mode is installed on the other side of the connecting device body.

Description

Technical Field

[0001] This utility model relates to the field of tractor trailer equipment technology, and in particular to a trailer connection device, trailer equipment, and tractor. Background Technology

[0002] The tractor trailer hitch is equipped with a wedge-shaped connecting device attached to the trailer bracket. The trailer support frame can simultaneously attach a tow hook and a wedge-shaped connecting device, meeting the user's needs for various working conditions and different implements. During use, the wedge-shaped connecting device's tow pin is connected to the trailer bracket. The pin constantly rubs against and bears the forward and backward traction force generated by the implement during operation. A single pin bears a large vertical load, and uneven stress distribution poses a risk of pin breakage and premature wear.

[0003] Problems with existing technical solutions: The wedge-shaped connecting device uses a single pin shaft to connect to the tow bracket. The single pin bearing is subjected to large traction force and is prone to wear and breakage. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a trailer connection device, a trailer device, and a tractor.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A towing connection device includes: a connection device body, a guide rail for connecting with a towing support frame is installed on one side of the connection device body, a plurality of pins for connecting with the towing support frame are installed on the guide rail, and a traction pin for attaching a tool is installed on the other side of the connection device body.

[0006] The beneficial effects of adopting this utility model's technical solution are as follows: The use of a multi-pin fixed towing connection device reduces the load on a single pin bearing, improving structural strength. Distributing the traction force across a single pin bearing reduces the risk of pin breakage and wear, increasing structural reliability and service life. The towing pin is used to attach towing equipment such as fertilizer spreaders and towed sprayers, providing traction. The towing connection device is inserted into the slide rail groove of the towing support frame, using multiple pins to connect the towing support frame and the towing connection device.

[0007] Furthermore, the guide rail is provided with multiple pin holes, and multiple pins are respectively installed in the multiple pin holes.

[0008] The beneficial effects of adopting the above-mentioned further technical solutions are: It facilitates the installation of pins on the guide rail; the use of multiple pins to fix the towing connection device reduces the load on a single pin bearing, thus improving structural strength. Distributing the traction force on a single pin bearing reduces the risk of pin breakage and wear, increasing structural reliability and service life. It also improves the stability and reliability of the towing connection device.

[0009] Furthermore, the number of pin holes is two; the number of pins is two.

[0010] The beneficial effects of adopting the above-mentioned further technical solution are: by using a double pin shaft fixed towing connection device, the traction force on a single pin bearing is distributed, reducing the risk of pin shaft breakage and wear, and increasing structural reliability and service life.

[0011] Furthermore, there are two guide rails, and multiple pins pass through both guide rails.

[0012] The beneficial effects of adopting the above-mentioned further technical solutions are: using a multi-pin fixed towing connection device distributes the traction force on a single pin bearing, reducing the risk of pin breakage and wear, and increasing structural reliability and service life. It also improves the stability and reliability of the towing connection device.

[0013] Furthermore, a pair of baffles are installed on the main body of the connecting device, and the pair of baffles are respectively connected to the pair of guide rails.

[0014] The beneficial effects of adopting the above-mentioned further technical solutions are: improving the load strength of the guide rail and improving the stability and reliability of the trailer connection device.

[0015] Furthermore, the connecting device body is a cast structure; the connecting device body is welded to the traction pin.

[0016] The beneficial effects of adopting the above-mentioned further technical solution are: the connecting device body is manufactured by casting, resulting in an aesthetically pleasing shape that meets structural strength requirements. The connecting device body is welded to the traction pin, reducing the difficulty of draft molding the traction pin due to its complex structure.

[0017] Furthermore, the bottom of the traction pin is connected to the body of the connecting device, the traction pin is vertically arranged, and the traction pin is a cylindrical structure with a tapered shape.

[0018] The beneficial effects of adopting the above-mentioned further technical solutions are: it facilitates the connection between the machinery and the traction pin, and improves the connection efficiency.

[0019] Furthermore, a cotter pin is installed on the pin shaft.

[0020] The beneficial effects of adopting the above-mentioned further technical solution are: the cotter pin is used to prevent the pin shaft from slipping, thereby improving the stability and reliability of the trailer connection device.

[0021] In addition, this utility model also provides a towing device, including a towing connection device as described in any one of the above, and further including: a towing support frame, one side of the towing support frame is provided with a slide rail groove adapted to the guide rail, the slide rail groove is provided with a plurality of connecting holes for connecting with the pin shaft, and the other side of the towing support frame is provided with a connecting plate for connecting with the rear axle housing.

[0022] The beneficial effects of adopting this utility model's technical solution are as follows: The use of a multi-pin fixed towing connection device reduces the load on a single pin bearing, improving structural strength. Distributing the traction force across a single pin bearing reduces the risk of pin breakage and wear, increasing structural reliability and service life. The towing pin is used to attach towing equipment such as fertilizer spreaders and towed sprayers, providing traction. The towing connection device is inserted into the slide rail groove of the towing support frame, using multiple pins to connect the towing support frame and the towing connection device.

[0023] In addition, this utility model also provides a tractor, including the aforementioned towing device.

[0024] The beneficial effects of adopting this utility model's technical solution are as follows: The use of a multi-pin fixed towing connection device reduces the load on a single pin bearing, improving structural strength. Distributing the traction force across a single pin bearing reduces the risk of pin breakage and wear, increasing structural reliability and service life. The towing pin is used to attach towing equipment such as fertilizer spreaders and towed sprayers, providing traction. The towing connection device is inserted into the slide rail groove of the towing support frame, using multiple pins to connect the towing support frame and the towing connection device.

[0025] The advantages of this invention in its additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] Figure 1 This is one of the structural schematic diagrams of the towing connection device provided in the embodiment of this utility model.

[0027] Figure 2 This is the second structural schematic diagram of the towing connection device provided in the embodiment of this utility model.

[0028] Figure 3 This is a schematic diagram of the towing device provided in an embodiment of the present utility model.

[0029] The following are the reference numerals: 1. Connecting device body; 2. Trailer support frame; 3. Guide rail; 4. Pin; 5. Traction pin; 6. Baffle; 7. Cotter pin; 8. Slide rail groove; 9. Connecting hole; 10. Connecting plate. Detailed Implementation

[0030] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0031] like Figures 1 to 2 As shown, this utility model embodiment provides a towing connection device, including: a connection device body 1, a guide rail 3 for connecting with a towing support frame 2 is installed on one side of the connection device body 1, a plurality of pins 4 for connecting with the towing support frame 2 are installed on the guide rail 3, and a traction pin 5 for attaching a tool is installed on the other side of the connection device body 1.

[0032] The beneficial effects of adopting this utility model's technical solution are as follows: The use of a multi-pin fixed towing connection device reduces the load on a single pin bearing, improving structural strength. Distributing the traction force across a single pin bearing reduces the risk of pin breakage and wear, increasing structural reliability and service life. The towing pin is used to attach towing equipment such as fertilizer spreaders and towed sprayers, providing traction. The towing connection device is inserted into the slide rail groove of the towing support frame, using multiple pins to connect the towing support frame and the towing connection device.

[0033] When the double pin shaft is connected to the trailer support (trailer support frame 2), the front and rear traction force on a single pin bearing is reduced during operation compared to the single pin shaft connection, thus reducing the risk of wear and breakage.

[0034] like Figures 1 to 2 As shown, the guide rail 3 is further provided with multiple pin holes, and multiple pins 4 are respectively installed in the multiple pin holes.

[0035] The beneficial effects of adopting the above-mentioned further technical solutions are: It facilitates the installation of pins on the guide rail; the use of multiple pins to fix the towing connection device reduces the load on a single pin bearing, thus improving structural strength. Distributing the traction force on a single pin bearing reduces the risk of pin breakage and wear, increasing structural reliability and service life. It also improves the stability and reliability of the towing connection device.

[0036] like Figures 1 to 2 As shown, the number of pin holes is two; the number of pins 4 is two.

[0037] The beneficial effects of adopting the above-mentioned further technical solution are: by using a double pin shaft fixed towing connection device, the traction force on a single pin bearing is distributed, reducing the risk of pin shaft breakage and wear, and increasing structural reliability and service life.

[0038] like Figures 1 to 2 As shown, there are two guide rails 3, and multiple pins 4 pass through both guide rails 3.

[0039] The beneficial effects of adopting the above-mentioned further technical solutions are: using a multi-pin fixed towing connection device distributes the traction force on a single pin bearing, reducing the risk of pin breakage and wear, and increasing structural reliability and service life. It also improves the stability and reliability of the towing connection device.

[0040] like Figures 1 to 2 As shown, further, a pair of baffles 6 are installed on the main body 1 of the connecting device, and the pair of baffles 6 are respectively connected to the pair of guide rails 3.

[0041] The beneficial effects of adopting the above-mentioned further technical solutions are: improving the load strength of the guide rail and improving the stability and reliability of the trailer connection device.

[0042] like Figures 1 to 2 As shown, the connecting device body 1 is a cast structure; the connecting device body 1 is welded to the traction pin 5.

[0043] The beneficial effects of adopting the above-mentioned further technical solution are: the connecting device body is manufactured by casting, resulting in an aesthetically pleasing shape that meets structural strength requirements. The connecting device body is welded to the traction pin, reducing the difficulty of draft molding the traction pin due to its complex structure.

[0044] The connecting device body 1 and the guide rail 3 can be an integrally formed structure.

[0045] like Figures 1 to 2 As shown, further, the bottom of the traction pin 5 is connected to the connecting device body 1, the traction pin 5 is vertically arranged, and the traction pin 5 is a cylindrical structure with a tapered shape.

[0046] The beneficial effects of adopting the above-mentioned further technical solutions are: it facilitates the connection between the machinery and the traction pin, and improves the connection efficiency.

[0047] like Figures 1 to 2 As shown, a cotter pin 7 is further installed on the pin 4.

[0048] The beneficial effects of adopting the above-mentioned further technical solution are: the cotter pin is used to prevent the pin shaft from slipping, thereby improving the stability and reliability of the trailer connection device.

[0049] The towing connection device provided in this embodiment of the utility model is used in conjunction with the towing bracket (towing support frame 2) in the towing device of an agricultural tractor. It can be used to attach towing implements such as fertilizer spreaders and towed sprayers, providing a towing function. The wedge-shaped connection device (towing connection device) is made by casting, resulting in an aesthetically pleasing shape and meeting structural strength requirements. The wedge-shaped connection device (towing connection device) is inserted into the slide rail groove of the towing bracket (towing support frame 2), and the towing bracket (towing support frame 2) and the wedge-shaped connection device (towing connection device) are connected by double pins.

[0050] 1. The wedge-shaped connecting device seat (towing connecting device) has a double-hole (pin hole) structure on both sides of the guide rail; 2. The wedge-shaped connecting device (towing connecting device) and the towing bracket (towing support frame 2) are connected by double pins, which reduces the load on the single pin bearing and improves the structural strength.

[0051] 1. Single pin connection bears high stress, so the wedge-shaped connection device (trailer connection device) adds a mating hole (pin hole) with the trailer bracket (trailer support frame 2).

[0052] 2. The wedge-shaped connecting device (trailer connecting device) bears the front and rear traction forces during operation. The single pin experiences significant stress, posing a risk of deformation of the wedge-shaped connecting device hole and pin breakage. Severe wear of the pin and wedge-shaped connecting device hole reduces performance; pin breakage necessitates replacement, reducing work efficiency and posing safety hazards. Therefore, the wedge-shaped connecting device (trailer connecting device) adopts a double-pin structure connected to the trailer bracket (trailer support frame 2).

[0053] like Figure 3 As shown, in addition, this utility model also provides a towing device, including a towing connection device as described in any one of the above, and further including: a towing support frame 2, one side of the towing support frame 2 is provided with a slide rail groove 8 adapted to the guide rail 3, the slide rail groove 8 is provided with a plurality of connecting holes 9 for connecting with the pin shaft 4, and the other side of the towing support frame 2 is provided with a connecting plate 10 for connecting with the rear axle housing.

[0054] The beneficial effects of adopting this utility model's technical solution are as follows: The use of a multi-pin fixed towing connection device reduces the load on a single pin bearing, improving structural strength. Distributing the traction force across a single pin bearing reduces the risk of pin breakage and wear, increasing structural reliability and service life. The towing pin is used to attach towing equipment such as fertilizer spreaders and towed sprayers, providing traction. The towing connection device is inserted into the slide rail groove of the towing support frame, using multiple pins to connect the towing support frame and the towing connection device.

[0055] In addition, this utility model also provides a tractor, including the aforementioned towing device.

[0056] The beneficial effects of adopting this utility model's technical solution are as follows: The use of a multi-pin fixed towing connection device reduces the load on a single pin bearing, improving structural strength. Distributing the traction force across a single pin bearing reduces the risk of pin breakage and wear, increasing structural reliability and service life. The towing pin is used to attach towing equipment such as fertilizer spreaders and towed sprayers, providing traction. The towing connection device is inserted into the slide rail groove of the towing support frame, using multiple pins to connect the towing support frame and the towing connection device.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A towing connection device, characterized in that The utility model relates to a kind of towed connection device, including: The connecting device body, the side of the connecting device body is equipped with guide rail for being connected with towing support frame, a plurality of pin shafts for being connected with towing support frame are installed on the guide rail, the other side of the connecting device body is equipped with traction pin for being connected with machine tool.

2. A towing connection device according to claim 1, characterised in that A plurality of pin shaft holes are provided on the guide rail, and a plurality of pin shafts are respectively installed in the pin shaft holes.

3. A towing connection device according to claim 2, characterised in that The number of pin shaft holes is two; The number of pin shafts is two.

4. A towing connection device according to claim 1, characterised in that The number of guide rails is two, and a plurality of pin shafts penetrate two guide rails.

5. A towing connection device according to claim 4, characterised in that A pair of baffles is installed on the connecting device body, and a pair of baffles is connected with a pair of guide rails respectively.

6. A hitching device according to claim 1, characterized in that The connecting device body is a cast structure; The connecting device body and the traction pin are welded into shape.

7. A hitching device according to claim 1, characterized in that The bottom of the traction pin is connected with the connecting device body, the traction pin is vertically arranged, and the traction pin is a cylindrical tapered structure.

8. A hitching device according to claim 1, characterized in that A split pin is installed on the pin shaft.

9. A towing arrangement characterised in that The utility model relates to a kind of towed connection device, including any one of the above claims 1 to 8, further comprising: towing support frame, the side of the towing support frame is equipped with with guide rail adaptation slide rail groove, a plurality of connection holes for being connected with pin shaft are equipped on the slide rail groove, the other side of the towing support frame is equipped with the connecting plate for being connected with rear axle housing.

10. A tractor characterised in that, The utility model relates to a kind of towed device.

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