Adjustable traction device

Abstract

The utility model provides an adjustable traction device which comprises a supporting plate, a plurality of round through holes are formed in the supporting plate, buffering mechanisms are arranged in the round through holes, each buffering assembly comprises a connecting piece arranged on the inner side wall of the corresponding round through hole, and the connecting pieces are used for fixedly supporting a fixing cylinder and parts on the fixing cylinder. A sliding rod is slidably connected to the inner side wall of the fixing cylinder, a limiting disc is arranged at one end of the sliding rod, a fixing disc is arranged on the side face, facing the limiting disc, of the supporting plate, and a first spring is arranged between the fixing disc and the limiting disc; a limiting assembly is arranged on the side, away from the first springs, of each fixing cylinder, the supporting plate is matched with the multiple sets of buffering assemblies, so that the multiple first springs are matched with the sliding rods to move in the fixing cylinders to achieve the buffering effect, and the situation that the traction device is damaged or directly damaged due to impact force generated by braking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to an adjustable traction device. Background Art

[0002] The traction device of a tractor is mainly responsible for connecting the tractor and the towed vehicle or cargo, ensuring that the traction force can be transmitted stably and safely between the two.

[0003] In the prior art, traction devices generally use traction hooks, pneumatic joints or safety ropes to ensure that the tractor can safely and effectively tow heavy objects to meet different transportation and operation requirements.

[0004] However, when the tractor brakes during the towing process, the heavy object will move forward a certain distance due to inertia, which may cause damage to the towing device, and in severe cases, directly damage the towing device. Utility Model Content

[0005] In view of this, the utility model provides an adjustable traction device, which can cooperate with multiple groups of buffer mechanisms through the setting of support plates so that multiple first springs can cooperate with sliding rods to move in the fixed cylinder to play a buffering role, thereby avoiding damage or direct damage to the traction device caused by the impact force generated by braking.

[0006] The cam is fixedly mounted on a support frame, and the cam is adapted to engage said support frame and engage said support frame with a plurality of springs, each of which is adapted to engage said support frame and engage said support frame for rotation.

[0007] One side of the plurality of limit disks on the plurality of buffer mechanisms is connected with a mounting plate, and the mounting plate is fixedly connected to one side of the plurality of limit disks;

[0008] A limiting assembly is provided on a side of each fixing cylinder away from the first spring, and the limiting assembly is used to limit the trailer pulling the heavy object to avoid damage to the first spring.

[0009] The connecting piece is configured as a joint bearing, the outer wall of the joint bearing is fixedly connected to the inner wall of the circular perforation, and the outer wall of the fixing cylinder is fixedly connected to the inner wall of the inner sphere of the joint bearing.

[0010] A sealing ring is provided on the outer ring of the spherical bearing, and the sealing ring is connected to the outer ring of the spherical bearing through an adhesive.

[0011] Each set of limit components includes a mounting plate arranged on a side of the support plate away from the first spring, the mounting plate is fixedly connected to one side of the support plate, a limit block is arranged on the side of the sliding rod away from the limit plate, the limit block is fixedly connected to one end of the sliding rod, a second spring is arranged between the mounting plate and the limit block, one end of the second spring is fixedly connected to the mounting plate, and the other end of the second spring is not connected to the limit block.

[0012] The elastic force of the second spring must be greater than the total resistance to the weight, which refers to the kinetic friction and air resistance generated when the weight moves.

[0013] Each fixing plate is connected to the supporting plate through a plurality of adjusting screws, and the plurality of adjusting screws are connected to the fixing plate through threaded engagement.

[0014] The beneficial effects of the above technical solution of the utility model are as follows:

[0015] 1. By providing a support plate in conjunction with multiple groups of buffer mechanisms, multiple first springs cooperate with the sliding rod to move in the fixed cylinder to play a buffering role, thereby preventing the traction device from being damaged or directly damaged by the impact force generated by the brake.

[0016] 2. By setting the connecting piece and setting it as a joint bearing, multiple sliding rods can be tilted synchronously, and then when the tractor turns, the multiple sliding rods are tilted to one side, which can further improve the buffering effect.

[0017] 3. By setting up multiple sets of limit assemblies, when dragging a heavy object, the force acts on the multiple second springs and the limit blocks, thereby preventing the multiple first springs from being damaged due to excessive force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the sliding rod and its components of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the local parts of the buffer mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0022] In the figure: 101, support plate; 102, joint bearing; 103, fixed cylinder; 104, sliding rod; 105, fixed plate; 106, limit plate; 107, first spring; 108, mounting plate;

[0023] 201. Mounting plate; 202. Second spring; 203. Limit block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiment of the present invention clearer, the following will be combined with the appended drawings of the embodiment of the present invention. Figure 1-4 , clearly and completely describing the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention.

[0025] like Figure 1 、 2 3: An adjustable traction device, including a support plate 101, which is provided so that the various components thereon can be firmly supported, and a plurality of circular perforations are opened on the support plate 101, so that the plurality of circular perforations are provided so that the buffer mechanism can be fixedly supported therein, and the plurality of circular perforations can be opened on the support plate 101 by a hole opener, so that it is convenient for rapid production during production, and buffer mechanisms are provided in the plurality of circular perforations, and a plurality of groups of buffer mechanisms are provided so that they can play a buffering role when the tractor brakes, so as to prevent the inertia generated by the heavy object after braking from directly acting on the traction device, thereby preventing the traction device from being damaged or directly damaged, and each group of buffer mechanisms includes a connecting piece arranged on the inner wall of the circular perforation, and the connecting piece is provided so that the fixed cylinder 103 and the various components thereon can be firmly supported, and the outer wall of the connecting piece is fixedly connected to the inner wall of the circular perforation, so that its connection structure is more stable and will not fall off from the circular perforation during buffering.

[0026] The connecting piece is used to fix and support the fixed cylinder 103 and the various components thereon. A sliding rod 104 is slidably connected to the inner wall of the fixed cylinder 103. The sliding rod 104 is provided so that when the mounting plate 108 is impacted by a heavy object due to inertia, the sliding rod 104 will slide toward the side of the support column and return to its original position under the action of the first spring 107, thereby playing a buffering role, and can be used to support the support plate 101, and also play a guiding role for the first spring 107. A limiting plate 106 is provided at one end of the sliding rod 104. The limiting plate 106 is provided so that the first spring 107 can be The support plate 101 is provided with a fixed plate 105 on one side of the support plate 101 facing the limit plate 106. The fixed plate 105 is provided so that the other end of the first spring 107 can be supported. The position of the fixed plate 105 can be adjusted to adjust the elastic force of the first spring 107 so that it can be adjusted according to the weight of the heavy object. The fixed plate 105 is slidably connected to the outer side wall of the sliding rod 104, so that the position of the fixed plate 105 can be adjusted.

[0027] The first spring 107 is provided between the fixed plate 105 and the limit plate 106. The first spring 107 is provided so that when the mounting plate 108 is impacted, the elastic deformation of the first spring 107 can be offset, thereby playing a buffering role. The two ends of the first spring 107 are respectively fixedly connected to the opposite surfaces of the fixed plate 105 and the limit plate 106, thereby making its connection structure more stable. One side of the multiple limit plates 106 on the multiple groups of buffer mechanisms is connected to a mounting plate 108. The mounting plate 108 is provided so that the mounting plate 108 can be connected to the trailer pulling the heavy object, thereby making the impact force generated by the inertia of the trailer pulling the heavy object directly act on the mounting plate 108, thereby improving the buffering effect. The mounting plate 108 is fixedly connected to one side of the multiple limit plates 106, thereby making its connection structure more stable. Each fixed cylinder 103 is provided with a limiting component on the side away from the first spring 107, and the limiting component is used to limit the trailer pulling the heavy object to avoid damage to the first spring 107.

[0028] When in use, the mounting plate 108 is mounted on a trailer pulling a heavy object, and the clamping ring is clamped on the towing hook. When the towing vehicle brakes, the impact force acts on the mounting plate 108. At this time, the sliding rod 104 will move toward the clamping ring and offset the impact force generated by the braking of the towing vehicle under the action of the first spring 107, thereby playing a buffering role and preventing the towing device from being damaged or directly damaged by the impact force generated by the braking.

[0029] like Figure 2 、 3As shown: the connecting member is configured as a joint bearing 102, which is configured as a joint bearing 102 so that multiple sliding rods 104 can tilt synchronously, and then when the tractor turns, multiple sliding rods 104 tilt to one side, which can further enhance the buffering effect. The outer wall of the joint bearing 102 is fixedly connected to the inner wall of the circular perforation, thereby making its connection structure more stable, and the outer wall of the fixing cylinder 103 is fixedly connected to the inner wall of the inner sphere of the joint bearing 102, thereby making its connection structure more stable.

[0030] like Figure 2 As shown: A sealing ring is provided on the outer ring of the joint bearing 102, which can prevent dust and moisture from entering the interior of the bearing, thereby extending the service life of the joint bearing 102. The sealing ring is connected to the outer ring of the joint bearing 102 by adhesive, thereby making its connection structure more stable.

[0031] like Figure 2 、 4 As shown: each set of limiting components includes a mounting plate 201 arranged on a side of the support plate 101 away from the first spring 107, the mounting plate 201 is arranged so that the second spring 202 can be supported, thereby allowing the second spring 202 to block the limiting block 203, and the mounting plate 201 is fixedly connected to one side of the support plate 101, thereby making its connection structure more stable, and a limiting block 203 is arranged on the side of the sliding rod 104 away from the limiting plate 106, and the limiting block 203 is arranged so that the sliding rod 104 can be limited, thereby preventing the force generated when the heavy object is dragged from acting on multiple first springs 107, thereby preventing the first If the spring 107 is damaged, the limit block 203 is fixedly connected to one end of the sliding rod 104, thereby making its connection structure more stable. A second spring 202 is provided between the mounting plate 201 and the limit block 203. The second spring 202 is provided so as to block the limit block 203 and thereby limit the position of the sliding rod 104. One end of the second spring 202 is fixedly connected to the mounting plate 201, thereby making its connection structure more stable. The other end of the second spring 202 is not connected to the limit block 203, so that the second spring 202 can block the limit block 203 without affecting the buffering effect of multiple first springs 107.

[0032] When dragging a heavy object, the mounting plate 108 will drag the multiple sliding rods 104 to move due to the total resistance encountered by the heavy object, and at this time the limit block 203 will interfere with one end of the second spring 202, so that when dragging the heavy object, the force acts on the multiple second springs 202 and the limit block 203, preventing the multiple first springs 107 from being damaged due to excessive force.

[0033] like Figure 2 、 4As shown: the elastic force of the second spring 202 must be greater than the total resistance encountered by the heavy object. The total resistance refers to the dynamic friction force, air resistance, etc. generated by the heavy object when it moves. Therefore, when the heavy object is towed, the total resistance encountered by the heavy object is balanced with the elastic force of the second spring 202, thereby avoiding excessive deformation of the second spring 202 and causing the consignment length to be extended, further avoiding accidents.

[0034] like Figure 1 、 2 3: Each fixed plate 105 is connected to the support plate 101 by a plurality of adjusting screws. A plurality of adjusting screws are provided so that the distance between the fixed plate 105 and the support plate 101 can be fine-tuned, and then the preload force of the plurality of first springs 107 can be adjusted, so that it is suitable for objects of different weights, thereby improving the versatility and scope of use of the traction device. The plurality of adjusting screws are connected to the fixed plate by threaded engagement, so that the adjusting screws can adjust the position of the fixed plate.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. An adjustable traction device, characterized in that: The invention comprises a support plate (101), wherein the support plate (101) is provided with a plurality of circular through-holes, wherein a buffer mechanism is provided in each of the plurality of circular through-holes, wherein each group of the buffer mechanisms comprises a connecting piece provided on the inner side wall of the circular through-hole, wherein the connecting piece is used for fixing and supporting the fixed cylinder (103) and the components thereon, wherein a sliding rod (104) is slidably connected to the inner side wall of the fixed cylinder (103), wherein a limiting disk (106) is provided at one end of the sliding rod (104), and a fixed disk (105) is provided on a side of the support plate (101) facing the limiting disk (106), and a first spring (107) is provided between the fixed disk (105) and the limiting disk (106); One side of the plurality of limit plates (106) on the plurality of groups of buffer mechanisms is connected to a mounting plate (108); A limiting assembly is provided on the side of each fixing cylinder (103) away from the first spring (107), and the limiting assembly is used to limit the position of the trailer pulling the heavy object to avoid damage to the first spring (107).

2. The adjustable traction device according to claim 1, characterized in that: The connecting piece is configured as a joint bearing (102), and the outer side wall of the fixing cylinder (103) is fixedly connected to the inner side wall of the inner spherical surface of the joint bearing (102).

3. The adjustable traction device according to claim 2, characterized in that: A sealing ring is provided on the outer ring of the spherical bearing (102).

4. The adjustable traction device according to claim 1, wherein: Each set of the limiting components comprises a mounting plate (201) arranged on a side of the support plate (101) away from the first spring (107); a limiting block (203) is arranged on a side of the sliding rod (104) away from the limiting plate (106); a second spring (202) is arranged between the mounting plate (201) and the limiting block (203); and one end of the second spring (202) is fixedly connected to the mounting plate (201).

5. The adjustable traction device according to claim 4, characterized in that: The elastic force of the second spring (202) must be greater than the total resistance experienced by the weight.

6. The adjustable traction device according to claim 1, wherein: Each of the fixing plates (105) is connected to the support plate (101) via a plurality of adjusting screws.

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