Trailing traction frame for tractor chassis

Abstract

The utility model provides a towing traction frame for a tractor chassis, which belongs to the technical field of towing traction frames, and comprises a traction frame box and a connecting block, the upper surface of the traction frame box is provided with a connecting port, the connecting block is slidably connected in the connecting port, and the side surface of the connecting block is provided with a connecting groove. The clamping block is rotationally connected into the traction frame box through the rotating shaft, the connecting opening is formed in the upper end of the traction frame box, the connecting block slides into the traction frame box through the connecting opening, the connecting block firstly presses the clamping block downwards and then presses the clamping block to a certain depth, and then the clamping block rebounds through the spring and is further connected into the connecting groove in a clamped mode. And meanwhile, only the motor needs to be controlled to drive the gear to rotate, then the sliding block is controlled to move, unlocking is completed, the connecting steps are simplified, and operation is more convenient and firmer.

Description

Technical Field

[0001] The utility model belongs to the technical field of a hanging and traction frame, in particular to a hanging and traction frame for a tractor chassis. Background Art

[0002] A hitch frame is a device used to connect a tractor and a trailer, usually made of metal. In the freight industry, the hitch frame plays an important role in transferring traction from the tractor to the trailer.

[0003] The existing publication number CN220076067U discloses a towing frame for a tractor chassis, including a supporting frame and a towing frame body, wherein a cavity is opened in the supporting frame, a worm is rotatably connected to the inner wall of the cavity, a worm wheel is meshedly connected to the worm, a bidirectional threaded rod is horizontally fixed and inserted in the center of the worm wheel, two threaded sleeves are symmetrically meshedly connected to the bidirectional threaded rod, and a connecting plate is fixedly connected to the side wall of each threaded sleeve.

[0004] The existing tractor chassis towing frame still has the following disadvantages:

[0005] 1. The existing towing frame requires manual participation during use, and cannot be automatically connected by a machine after aligning the connection holes, which will bring inconvenience to the connection process.

[0006] 2. The existing towing frame is not provided with a shock-absorbing structure, which may cause collisions between machines during use, and may cause the risk of wear and damage to the device. Utility Model Content

[0007] The utility model aims to solve the problem that the prior art cannot realize autonomous connection and has no shock absorbing structure, and proposes a towing frame for a tractor chassis.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A towing traction frame for a tractor chassis, comprising: a traction frame box and a connecting block, wherein the upper surface of the traction frame box is provided with a connecting port, the connecting block is slidably connected in the connecting port, the side surface of the connecting block is provided with a connecting groove, the inner bottom surface of the traction frame box is provided with an elastic structure, the traction frame box is provided with a clamping assembly, and the inner side wall of the traction frame box is provided with a power assembly;

[0010] Preferably, the elastic structure comprises a No. 1 spring, a No. 2 spring, a No. 1 cushion block and a No. 2 cushion block, the No. 1 cushion block and the No. 2 cushion block are both fixedly connected to the inner bottom surface of the traction frame box, and the No. 1 spring and the No. 2 spring are respectively fixedly connected to the upper surfaces of the No. 1 cushion block and the No. 2 cushion block;

[0011] Preferably, the clamping assembly comprises a clamping block and a rotating shaft, the rotating shaft is fixedly connected between the inner side surfaces of the traction frame box, the clamping block is arranged in a "Z" shape, and the clamping block is rotatably connected to the rotating shaft;

[0012] Preferably, the first spring is fixedly connected to the lower surface of the lower horizontal plate of the clamping block, and the second spring is fixedly connected to the lower surface of the upper horizontal plate of the clamping block;

[0013] Preferably, both inner surfaces of the traction frame box are provided with slide grooves, and one inner side surface of the traction frame box is provided with a gear groove, and the gear groove is connected to the slide groove;

[0014] Preferably, the power assembly comprises a slider, a gear and a motor, the slider is slidably connected in the slide slot, the gear is rotatably connected in the gear slot, the motor is fixedly connected to the outer side of the traction frame box, and the output end of the motor is fixedly connected to the side of the gear;

[0015] Preferably, a side of the slider close to the gear is provided with a plurality of tooth grooves, and the gear is meshingly connected in the tooth grooves.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The utility model rotates the clamping block and connects it to the traction frame box through a rotating shaft, and a connecting port is provided at the upper end of the traction frame box. The connecting block slides into the traction frame box through the connecting port. The connecting block first presses the clamping block downward, and after being pressed to a certain depth, the clamping block rebounds through a spring, and then is engaged and connected in the connecting groove, thereby completing automatic locking. At the same time, it only needs to control the rotation of the gear driven by the motor, and then control the movement of the slider to complete the unlocking, which simplifies the connection steps and makes the operation more convenient and firm.

[0018] 2. The utility model arranges a No. 1 spring and a No. 2 spring on the upper surfaces of the No. 1 cushion block and the No. 2 cushion block, and connects the upper ends of the No. 1 spring and the No. 2 spring to the bottom of the clamping block, thereby playing a shock-absorbing role during the connection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the top view of the structure of a towing frame for a tractor chassis proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the inner section of the shell of a towing frame for a tractor chassis proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the internal section of a towing frame for a tractor chassis proposed by the utility model;

[0022] Figure 4This is a schematic diagram of the disassembly of the internal structure of a towing frame for a tractor chassis proposed by the utility model;

[0023] Figure 5 for Figure 4 Enlarged view of part A.

[0024] In the figure: 1 traction frame box, 2 connecting port, 3 slide groove, 4 gear groove, 5 No. 1 spring, 6 No. 2 spring, 7 clamping block, 8 rotating shaft, 9 slider, 10 connecting block, 11 connecting groove, 12 tooth groove, 13 gear, 14 motor, 15 No. 1 pad, 16 No. 2 pad. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Reference Figure 1-Figure 5 A towing traction frame for a tractor chassis comprises: a traction frame box 1 and a connecting block 10, a connecting port 2 is provided on the upper surface of the traction frame box 1, the connecting block 10 is slidably connected in the connecting port 2, a connecting groove 11 is provided on the side of the connecting block 10, an elastic structure is provided on the inner bottom surface of the traction frame box 1, a clamping assembly is provided in the traction frame box 1, and a power assembly is provided on the inner side wall of the traction frame box 1;

[0027] The elastic structure includes a No. 1 spring 5, a No. 2 spring 6, a No. 1 cushion block 15 and a No. 2 cushion block 16. The No. 1 cushion block 15 and the No. 2 cushion block 16 are both fixedly connected to the inner bottom surface of the traction frame box 1, and the No. 1 spring 5 and the No. 2 spring 6 are respectively fixedly connected to the upper surfaces of the No. 1 cushion block 15 and the No. 2 cushion block 16;

[0028] The clamping assembly includes a clamping block 7 and a rotating shaft 8. The rotating shaft 8 is fixedly connected between the inner side surfaces of the traction frame box 1. The clamping block 7 is set in a "Z" shape, and the clamping block 7 is rotatably connected to the rotating shaft 8.

[0029] The first spring 5 is fixedly connected to the lower surface of the lower horizontal plate of the clamping block 7, and the second spring 6 is fixedly connected to the lower surface of the upper horizontal plate of the clamping block 7. The first spring 5 and the second spring 6 are arranged on the upper surfaces of the first cushion block 15 and the second cushion block 16, and the upper ends of the first spring 5 and the second spring 6 are connected to the bottom of the clamping block 7, so as to play a role of shock absorption during the connection process;

[0030] Both inner surfaces of the traction frame box 1 are provided with slide grooves 3, and one inner side surface of the traction frame box 1 is provided with a gear groove 4, and the gear groove 4 is connected to the slide groove 3;

[0031] The power assembly includes a slider 9, a gear 13 and a motor 14. The slider 9 is slidably connected in the slide slot 3, the gear 13 is rotatably connected in the gear slot 4, the motor 14 is fixedly connected to the outer side of the traction frame box 1, and the output end of the motor 14 is fixedly connected to the side of the gear 13;

[0032] A plurality of tooth grooves 12 are provided on one side of the slider 9 close to the gear 13, and the gear 13 is meshed and connected in the tooth groove 12. The clamping block 7 is rotated and connected in the traction frame box 1 through the rotating shaft 8, and a connecting port 2 is provided at the upper end of the traction frame box 1. The connecting block 10 slides into the traction frame box 1 through the connecting port 2. The connecting block 10 first presses the clamping block 7 downward, and after being pressed to a certain depth, the clamping block 7 rebounds through the spring, and then is clamped and connected in the connecting groove 11, thereby completing automatic locking. At the same time, it only needs to control the motor 14 to drive the rotation of the gear 13, and then control the movement of the slider 9 to complete the unlocking, which simplifies the connection steps and makes the operation more convenient and firm.

[0033] The utility model can explain its functional principle through the following operation modes:

[0034] The clamping block 7 is rotatably connected to the traction frame box 1 through the rotating shaft 8, and a connecting port 2 is provided at the upper end of the traction frame box 1. The connecting block 10 slides into the traction frame box 1 through the connecting port 2. The connecting block 10 first presses the clamping block 7 downward, and after being pressed to a certain depth, the clamping block 7 rebounds through the spring and then engages and connects to the connecting groove 11, thereby completing automatic locking. At the same time, it is only necessary to control the motor 14 to drive the rotation of the gear 13, and then control the movement of the slider 9 to complete the unlocking, which simplifies the connection steps and makes the operation more convenient and firm. By arranging the No. 1 spring 5 and the No. 2 spring 6 on the upper surfaces of the No. 1 cushion block 15 and the No. 2 cushion block 16, and connecting the upper ends of the No. 1 spring 5 and the No. 2 spring 6 to the bottom of the clamping block 7, a shock absorbing effect is played during the connection process.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A towing frame for a tractor chassis, characterized in that: The invention comprises a traction frame box (1) and a connecting block (10), wherein the upper surface of the traction frame box (1) is provided with a connecting port (2), the connecting block (10) is slidably connected in the connecting port (2), a connecting groove (11) is provided on the side of the connecting block (10), an elastic structure is provided on the inner bottom surface of the traction frame box (1), a clamping assembly is provided in the traction frame box (1), and a power assembly is provided on the inner side wall of the traction frame box (1).

2. A towing frame for a tractor chassis according to claim 1, characterized in that: in: The elastic structure comprises a No. 1 spring (5), a No. 2 spring (6), a No. 1 cushion block (15) and a No. 2 cushion block (16); the No. 1 cushion block (15) and the No. 2 cushion block (16) are both fixedly connected to the inner bottom surface of the traction frame box (1); the No. 1 spring (5) and the No. 2 spring (6) are respectively fixedly connected to the upper surfaces of the No. 1 cushion block (15) and the No. 2 cushion block (16).

3. The towing frame for a tractor chassis according to claim 2, characterized in that: in: The clamping assembly comprises a clamping block (7) and a rotating shaft (8); the rotating shaft (8) is fixedly connected between the inner side surfaces of the traction frame box (1); the clamping block (7) is arranged in a "Z" shape; and the clamping block (7) is rotatably connected to the rotating shaft (8).

4. The towing frame for a tractor chassis according to claim 3, characterized in that: in: The first spring (5) is fixedly connected to the lower surface of the lower horizontal plate of the clamping block (7), and the second spring (6) is fixedly connected to the lower surface of the upper horizontal plate of the clamping block (7).

5. The towing frame for a tractor chassis according to claim 1, characterized in that: in: Both inner surfaces of the traction frame box (1) are provided with slide grooves (3), and one inner side surface of the traction frame box (1) is provided with a gear groove (4), and the gear groove (4) is connected to the slide groove (3).

6. The towing frame for a tractor chassis according to claim 5, characterized in that: in: The power assembly comprises a slider (9), a gear (13) and a motor (14); the slider (9) is slidably connected in a slide groove (3); the gear (13) is rotatably connected in a gear groove (4); the motor (14) is fixedly connected to an outer side surface of a traction frame box (1); and an output end of the motor (14) is fixedly connected to a side surface of the gear (13).

7. A towing frame for a tractor chassis according to claim 6, characterized in that: in: A plurality of tooth grooves (12) are provided on one side of the slider (9) close to the gear (13), and the gear (13) is meshedly connected in the tooth grooves (12).

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