A towing trolley

Abstract

The utility model discloses a kind of towing trolleys for transferring flat kiln car, and the towing trolley includes car body and hangs pin bracing device;The car body is composed of car frame, track wheel and speed reducer;The hanging pin bracing device is set to the front end of car frame, and speed reducer is set to the rear end of car frame, and speed reducer is connected with track wheel by double-row chain.The towing trolley of the design cancels the soft connection mode such as towing hook, towing rope etc. on existing towing vehicle, designs a kind of towing arm that can swing up and down, so that the action of hook also does not need manual operation, and completely realizes mechanical automation.

Description

Technical Field

[0001] This utility model relates to the field of industrial production equipment, and in particular to a traction trolley for traction of flatbed kiln cars. Background Technology

[0002] High-temperature industrial kilns are industrial thermal equipment used for high-temperature treatment (usually ≥800℃). They change the physicochemical properties of materials through heating, calcination, or sintering. They are widely used in metallurgy, ceramics, chemical industry, new energy and other fields, and can be operated by combustible gas, oil or electricity.

[0003] After the kiln heat treatment is completed, the product needs to be transported out. However, due to the high internal temperature of the kiln after firing, workers cannot directly enter. Therefore, machines are needed to replace manual labor for unloading. Thus, kiln cars were designed. The material to be processed is piled on the kiln car, which then carries the material into the kiln for heat treatment. A tractor then pulls the kiln car to unload it. However, existing tractors typically use a motor-driven winch, with a traction rope attached to the winch to pull the kiln car. Connecting the traction rope to the kiln car requires manual operation, which is not only dangerous but also reduces production efficiency. Therefore, a method was developed to fix the traction rope to the kiln car and equip each kiln car with a traction device. However, this method not only increases costs but also binds the kiln car to the kiln, making each kiln car serve only its corresponding kiln, which is very inconvenient. Summary of the Invention

[0004] The problem to be solved by this utility model is to propose an improvement or replacement solution to address the shortcomings of the prior art, especially an improvement or replacement solution that can be conveniently and efficiently connected or separated from the kiln car without being bound to the kiln car.

[0005] To solve the above problems, the present invention adopts the following solution: a traction trolley for transferring flat kiln cars, characterized in that the traction trolley includes a trolley body and a pin-support device; the trolley body consists of a frame, track wheels, and a reducer; the pin-support device is located at the front end of the frame, and the reducer is located at the rear end of the frame, the reducer being connected to the track wheels via a double-row chain; the pin-support device includes a support cylinder, a pin cylinder, a traction arm, a movable frame, a guide frame, a pin cylinder mounting frame, and a central shaft; the support cylinder is fixedly mounted on the frame, and the guide frame is fitted with... The top support cylinder is fixedly connected to the frame, and the movable frame matches the guide frame, with the movable frame embedded within the guide frame. The piston rod of the top support cylinder is fixedly connected to the movable frame via a cylinder connector, and the central shaft is set on the movable frame and fixedly connected to the cylinder connector. The traction arm is sleeved on the central shaft and fixed by bearings and nuts. One end of the mounting frame for the pin-hanging cylinder is fixedly connected to the movable frame, and the other end is fitted with a pin-hanging cylinder via a cylinder lug. The other end of the pin-hanging cylinder is connected to the end of the traction arm via a cylinder lug. The front section of the traction arm is provided with a lug for connecting to the floating pin of the kiln car.

[0006] Furthermore, the traction trolley is characterized in that a balance block box is provided on one end of the traction arm near the pin cylinder for placing balance blocks.

[0007] Furthermore, the traction trolley is characterized in that the top support cylinder is fixedly connected to the frame via a hinge seat.

[0008] Furthermore, the traction trolley is characterized in that a balance block box is provided on the frame above the track wheel for placing balance blocks.

[0009] Furthermore, the traction trolley is characterized in that it further includes a protective cover, which is disposed above the frame and houses the hook-and-loop support device and the reducer cover. A window is provided at the front of the cover for the towing arm to extend out. This reduces the impact of the environment on the trolley body and the hook-and-loop support device, extending the service life of the equipment.

[0010] Furthermore, the traction trolley is characterized in that the front and rear wheels of the track wheel are connected by a double-row hinge, and the rear wheel of the track wheel is connected to the reducer by a double-row hinge. Since kiln cars typically carry heavy materials, designing both the front and rear wheels of the traction trolley as drive wheels effectively increases the traction weight of the traction trolley.

[0011] Furthermore, the traction trolley is characterized in that the reducer is mounted on the rear of the frame via a reducer mounting frame, and a reinforcing plate is provided at the connection between the reducer mounting frame and the frame, and the distance between the center of gravity of the reducer and the axis of the nearest track wheel does not exceed the distance between the axes of the front and rear track wheels.

[0012] The technical effects of this utility model are as follows: The traction trolley of this application eliminates the soft connection methods such as traction hook and traction rope on the existing traction vehicle, and designs a traction arm that can swing up, down and left and right, so that the hooking action does not require manual operation and is fully automated.

[0013] In operation, the tractor is driven to the kiln door, the towing arm is inserted into the bottom of the kiln car, and then the top support cylinder is activated to raise the towing arm. Once the towing arm contacts the bottom of the kiln car, the pin-hanging cylinder is activated to swing the towing arm laterally back into position, allowing the floating pin at the bottom of the kiln car to insert into the lug on the towing arm, completing the connection. Then, the reducer drives the towing arm out of the kiln car. After the kiln car has been transferred, the pin-hanging cylinder is activated first to swing the towing arm to separate the floating pin from the lug, and then the top support cylinder is activated to lower the height of the towing arm.

[0014] This design places the speed reducer on the opposite side of the traction arm to provide counterweight for the traction trolley during traction, preventing the traction vehicle from overturning. Simultaneously, to balance the center of gravity of the traction trolley, a counterweight box is installed on the frame at the end furthest from the speed reducer, allowing for additional counterweights to be added based on actual site conditions.

[0015] To maintain the balance of the towing arm and counteract the forward shift of the center of gravity caused by the excessive extension of the towing arm, this design incorporates a counterweight housing on the towing arm near the pin cylinder. The counterweight can be increased according to the actual site conditions, ensuring that the center of gravity of the towing arm remains at the central axis, thereby reducing wear on the central axis and the towing arm. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the traction trolley structure.

[0017] Figure 2 This is a schematic diagram showing the connection between the traction trolley and the kiln car.

[0018] Figure 3 This is a schematic diagram of the installation of the top support cylinder.

[0019] Figure 4 This is a schematic diagram of the pin-mounted cylinder installation.

[0020] Figure 5 This is a schematic diagram of the vehicle's main structure.

[0021] Among them, 1 is the car body, 2 is the pin support device, 3 is the kiln car, 4 is the balance block box, 5 is the protective cover, 11 is the car frame, 12 is the track wheel, 13 is the reducer, 14 is the double-row chain, 21 is the support cylinder, 22 is the pin cylinder, 23 is the traction arm, 24 is the movable frame, 25 is the guide frame, 26 is the central shaft, 27 is the cylinder joint, and 31 is the floating pin. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] like Figure 1 As shown, a traction trolley for transferring flat kiln cars includes a trolley body and a pin-support device. The trolley body consists of a frame, track wheels, and a reducer, which is a cycloidal pinwheel reducer. The pin-support device is located at the front end of the frame, and the reducer is located at the rear end of the frame. The reducer is connected to the track wheels via a double-row chain. The pin-support device includes a support cylinder, a pin cylinder, a traction arm, a movable frame, a guide frame, a pin cylinder mounting frame, and a central shaft. The support cylinder is fixedly connected to the frame via a hinge seat, and the guide frame is sleeved on the top... The support cylinder is fixedly connected to the frame, the movable frame matches the guide frame, and the movable frame is embedded in the guide frame; the piston rod of the top support cylinder is fixedly connected to the movable frame through the cylinder joint, and the central shaft is set on the movable frame and fixedly connected to the cylinder joint; the traction arm is sleeved on the central shaft and fixed by bearings and nuts; one end of the mounting frame of the pin-hanging cylinder is fixedly connected to the movable frame, and the other end is set with the pin-hanging cylinder through the cylinder lug seat, and the other end of the pin-hanging cylinder is connected to the end of the traction arm through the cylinder lug seat; the front section of the traction arm is provided with a lug for connecting with the floating pin of the kiln car.

[0024] A balance weight housing is installed on the end of the traction arm near the pin cylinder for holding balance weights. A balance weight housing is also installed on the frame above the track wheels for holding balance weights. The traction trolley also includes a protective cover, which is located above the frame and houses the pin support device and reducer cover. A window is provided at the front of the protective cover for the traction arm to extend out. Figure 5 As shown, the front and rear wheels of the track wheel are connected by a double-row hinge, and the rear wheel of the track wheel is connected to the reducer by a double-row hinge. The reducer is mounted on the rear of the frame via a reducer mounting frame, and a reinforcing plate is installed at the connection between the reducer mounting frame and the frame. The distance between the center of gravity of the reducer and the axle of the nearest track wheel is two-thirds of the distance between the axles of the front and rear track wheels.

[0025] like Figure 2 , Figure 3 , Figure 4 As shown, the traction arm is controlled to move up and down by the top support cylinder and to swing left and right by the pin-mounting cylinder. When towing a kiln car, the top support cylinder controls the traction arm to move upward to the floating pin of the kiln car, and then the pin-mounting cylinder controls the traction arm to return to its original position. During the movement of the traction arm, the floating pin inserts into the mounting lug, connecting the traction trolley to the kiln car. Then, the cycloidal pinwheel reducer tows the kiln car to complete the transfer. Next, the pin-mounting cylinder drives the traction arm to shift laterally, causing the floating pin to disengage from the mounting lug. Finally, the top support cylinder controls the traction arm to descend, detaching it from the kiln car.

Claims

1. A traction trolley for transferring flatbed kiln cars, characterized in that, The traction trolley includes a trolley body and a pin-support device. The trolley body consists of a frame, track wheels, and a reducer. The pin-support device is located at the front end of the frame, and the reducer is located at the rear end of the frame. The reducer is connected to the track wheels via a double-row chain. The pin-support device includes a support cylinder, a pin cylinder, a traction arm, a movable frame, a guide frame, a pin cylinder mounting frame, and a central shaft. The support cylinder is fixedly mounted on the frame. The guide frame is fitted onto the support cylinder and fixedly connected to the frame. The movable frame matches the guide frame and is embedded within the guide frame. The piston rod of the support cylinder is fixedly connected to the movable frame via a cylinder connector. The central shaft is located on the movable frame and fixedly connected to the cylinder connector. The traction arm is fitted onto the central shaft and fixed by bearings and nuts. One end of the pin cylinder mounting frame is fixedly connected to the movable frame, and the other end is fitted with the pin cylinder via a cylinder lug. The other end of the pin cylinder is connected to the end of the traction arm via a cylinder lug. The front section of the traction arm has a lug for connecting to the floating pin of the kiln car.

2. The traction trolley according to claim 1, characterized in that, A balance block housing is provided on one end of the traction arm near the pin cylinder for holding balance blocks.

3. The traction trolley according to claim 1, characterized in that, The top support cylinder is fixedly connected to the vehicle frame via a hinge seat.

4. The traction trolley according to claim 1, characterized in that, The frame is equipped with a counterweight box above the track wheels for holding counterweights.

5. The traction trolley according to claim 1, characterized in that, The traction trolley also includes a protective cover, which is located above the frame and houses the hook-and-loop support device and the reducer. A window is provided in front of the protective cover for the traction arm to extend out.

6. The traction trolley according to claim 1, characterized in that, The front and rear wheels of the track wheel are connected by a double-row hinge, and the rear wheel of the track wheel is connected to the reducer by a double-row hinge.

7. The traction trolley according to claim 1, characterized in that, The speed reducer is mounted on the rear of the vehicle frame via a speed reducer mounting frame, and a reinforcing plate is installed at the connection between the speed reducer mounting frame and the vehicle frame. The distance between the center of gravity of the speed reducer and the axis of the nearest track wheel does not exceed the distance between the axes of the front and rear track wheels.

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