Large workpiece heat treatment furnace trolley

Abstract

The utility model provides a large workpiece heat treatment furnace trolley. A ground rail is arranged between a furnace mouth and a hoisting station of heat treatment equipment; the trolley is placed on the ground rail through the bottom wheels and reciprocates in the extending direction of the ground rail. The sliding rail is assembled on the upper surface of the trolley in a sliding mode so as to stretch into or retreat from a furnace opening of the heat treatment equipment, and a fixed rail corresponding to the sliding rail is arranged in the heat treatment equipment. The tackle is slidably assembled on the sliding rail so as to enter or exit from the heat treatment equipment along the sliding rail and the fixed rail. The ground rail is arranged to bear the trolley, so that the trolley operates a workpiece through movement, the sliding rail is arranged above the trolley, the sliding rail can stretch and retract to enter heat treatment equipment, a continuous rail does not need to be arranged at a furnace opening, accordingly, the furnace door can be abdicated, and the sealing performance of the furnace door is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat treatment of large trolleys, and particularly relates to a trolley for a heat treatment furnace of large workpieces. Background Art

[0002] For the feeding and discharging of industrial furnaces in the prior art, most of them use overhead cranes or forklifts for feeding and discharging. The load-bearing capacity of forklifts is limited and not suitable for large workpieces. Using an overhead crane is very convenient for hoisting materials for a vertical heat treatment furnace. However, for a horizontal heat treatment furnace, the overhead crane cannot directly lift the materials into the furnace body. Generally, the trolley method is used for transportation. However, for the transportation of large materials in the form of an independent trolley, the track extending into the furnace is necessarily required, which brings difficulties to the sealing of the heat treatment furnace, and its sealing degree is difficult to meet the requirements.

[0003] Therefore, an improved technical solution is needed to address the above deficiencies in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above deficiencies in the prior art, and the utility model provides a trolley for a heat treatment furnace of large workpieces.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A trolley for a heat treatment furnace of large workpieces, comprising:

[0007] A ground rail, which is arranged between the furnace mouth of the heat treatment equipment and the hoisting station;

[0008] A trolley, which is placed on the ground rail through bottom wheels and reciprocates along the extending direction of the ground rail;

[0009] A slide rail, which is slidably assembled on the upper surface of the trolley to extend into or withdraw from the furnace mouth of the heat treatment equipment, and a fixed rail corresponding to the slide rail is arranged inside the heat treatment equipment;

[0010] A trolley, which is slidably assembled on the slide rail to enter or withdraw from the heat treatment equipment along the slide rail and the fixed rail.

[0011] Preferably, a stop member is arranged at one end of the slide rail away from the heat treatment equipment, and a driving rod is arranged at one end of the slide rail close to the heat treatment equipment, and the driving rod drives the slide rail to move.

[0012] Preferably, a dovetail groove is arranged on the upper surface of the trolley, and the slide rail is slidably assembled in the dovetail groove through a bottom slider.

[0013] Preferably, a stop member is arranged at one end of the fixed rail away from the trolley.

[0014] Preferably, the trolley is welded by square steel or I-beam. A first driving roller is arranged inside the trolley. The first driving roller is perpendicular to the slide rail. A runner is arranged on the first driving roller, and a first driving steel cable is wound around the runner. A first tow hook corresponding to the trolley is arranged at the free end of the first driving steel cable.

[0015] Preferably, a second driving roller is further arranged inside the trolley. The second driving roller is perpendicular to the slide rail. A runner is arranged on the second driving roller, and a second driving steel cable is wound around the runner. A second tow hook corresponding to the towing cable is arranged at the free end of the second driving steel cable;

[0016] A driven roller is arranged at one end of the fixed rail away from the trolley. One end of the towing cable extends to the trolley after passing around the driven roller and is detachably fixed to the trolley through a connecting piece.

[0017] Preferably, the first driving roller is correspondingly connected to a first driving motor

[0018] The second driving roller is correspondingly connected to a second driving motor.

[0019] Beneficial effects: The ground rail is arranged to bear the trolley, so that the trolley moves to transport the workpiece. A slide rail is arranged above the trolley, and the slide rail can be telescoped to enter the heat treatment equipment. Furthermore, there is no need to set a continuous track at the furnace mouth, so that the furnace door can be given way, ensuring the sealing performance of the furnace door. Description of the Drawings

[0020] The schematic diagrams in the specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. Among them:

[0021] Figure 1 is a schematic diagram of the structure of the trolley in the specific embodiment provided by the present invention;

[0022] Figure 2 is a cross-sectional schematic diagram of the trolley in the specific embodiment provided by the present invention.

[0023] In the figure: 1, fixed rail; 2, towing cable; 3, first driving steel cable; 4, second driving steel cable; 5, first driving roller; 6, second driving roller; 7, slide rail; 8, bottom wheel; 9, trolley; 10, bottom rail; 11, stop plate; 12, driving rod. Detailed Embodiments

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and does not require the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "connected" and "coupled" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0027] As Figure 1-2 shown, a trolley for a large workpiece heat treatment furnace includes a ground rail, a trolley 9, a slide rail 7, and a trolley. The ground rail 10 is arranged between the furnace mouth and the lifting station of the heat treatment equipment. The lifting station can be hoisted to a preset position or a transport vehicle by a crane. The ground rail 10 can reciprocate between the furnace mouth and the lifting station. The trolley 9 is placed on the ground rail 10 through bottom wheels 8 and reciprocates along the extending direction of the ground rail 10. Correspondingly, a driving motor is connected to the bottom wheels 8 respectively, so that the trolley 9 can be moved according to actual needs. The outer edge of the bottom wheels 8 is provided with annular grooves corresponding to the two ground rails 10. The bottom wheels 8 are hinged to both sides of the trolley 9, thereby reducing the center of gravity of the trolley 9 and ensuring the stability of the trolley 9 during use.

[0028] There are two ground rails 10. A connecting rod is arranged between the two ground rails 10, and the bottom is fixed to the concrete cushion layer at the bottom through embedded bolts.

[0029] The slide rail 7 is slidably assembled on the upper surface of the trolley 9. The slide rail 7 can be driven toward the heat treatment equipment to extend into or out of the furnace mouth of the heat treatment equipment. A fixed rail 1 corresponding to the slide rail 7 is provided in the heat treatment equipment. The fixed rail 1 is fixed inside the heat treatment equipment to guide the trolley 9 to ensure that the trolley 9 can enter and exit smoothly. The trolley is slidably assembled on the slide rail 7 to enter or exit the heat treatment equipment along the slide rail 7 and the fixed rail 1, so that it can be docked with the fixed rail 1, and there is no need to set a continuous track at the furnace mouth, so that it can make way for the furnace door and ensure the sealing performance of the furnace door.

[0030] In an optional embodiment, a stopper 11 is provided at one end of the slide rail 7 away from the heat treatment equipment. The stopper 11 is a baffle extending upward and can limit the running position of the trolley 9. A driving rod 12 is provided at one end of the slide rail 7 close to the heat treatment equipment. The driving rod 12 drives the slide rail 7 to move. The driving rod 12 is a hydraulic rod or an air pipe, extending along the length direction of the slide rail 7, and one end is hinged to the slide rail 7. The slide rail 7 is provided with a hinged plate corresponding to the driving rod 12 downward, and the other end is hinged to the trolley 9, so that the slide rail 7 can be driven according to actual needs, so that the slide rod can be extended into the furnace as needed to dock with the fixed rail 1.

[0031] In an optional embodiment, the slide rail 7 is an I-beam, which has high strength and can meet the load-bearing requirements of the trolley 9 .

[0032] In this embodiment, a dovetail groove is provided on the upper surface of the trolley 9, and the slide rail 7 is slidably assembled in the dovetail groove through a bottom slider, and the slider and the slide rail 7 are fixed by bolts or welding.

[0033] In this embodiment, a stopper 11 is provided at one end of the fixed rail 1 away from the trolley 9 , so as to limit the position of the trolley 9 in the furnace.

[0034] In an optional embodiment, in order to facilitate driving the trolley 9 into or out of the furnace, the present application designs a mechanical mechanism for driving to prevent the circuits of conventional motors and other equipment from being damaged by high temperatures in the furnace.

[0035] The trolley 9 is welded by square steel or I-beam, has high enough strength, and forms a grid-like structure. Inside the trolley 9, a first driving roller 5 is provided. The first driving roller 5 is arranged on one side of the trolley 9 and is rotatably connected to the inside of the trolley 9 at both ends through bearings. The first driving roller 5 is perpendicular to the slide rail 7. A runner is concentrically fixed on the first driving roller 5, and a first driving steel cable 3 is wound around the runner. The first driving roller 5 is correspondingly connected to a first driving motor, and the first driving steel cable 3 can be driven through the first driving motor. At the free end of the first driving steel cable 3, a first tow hook corresponding to the trolley is provided. On the side of the trailer away from the heat treatment furnace, a corresponding hanging ring or scraper is provided. Thus, after the furnace door is opened, the first tow hook is connected to the trolley 9, and then the trolley 9 can be driven out of the heat treatment furnace through the first driving steel cable 3.

[0036] In order to enable the trolley 9 to smoothly enter the heat treatment furnace, a second driving roller 6 is also provided inside the trolley 9. The second driving roller 6 is perpendicular to the slide rail 7. A runner is provided on the second driving roller 6, and a second driving steel cable 4 is wound around the runner. At the free end of the second driving steel cable 4, a second tow hook corresponding to the towing cable 2 is provided. Correspondingly, the second driving roller 6 is correspondingly connected to a second driving motor. The towing cable 2 is a steel cable. A driven roller is provided at one end of the fixed rail 1 away from the trolley 9. One end of the towing cable 2 bypasses the driven roller and extends towards the trolley, and is detachably fixed to the trolley through a connecting member. The connecting member can be a hook, and a corresponding hanging ring or scraper for the hook is provided on the corresponding trolley 9. Preferably, the hanging ring or scraper is located on the side of the trolley 9 away from the heat treatment equipment. In this way, the towing cable 2 bypasses the driven roller and is fixed to the trolley 9 through the connecting member. Driven by the second driving steel cable 4, the towing cable 2 drives the trolley 9 to move into the furnace. Then, the hook connecting the towing cable 2 and the second driving steel cable 4 is released, and the furnace door can be closed. After the heat treatment is completed, the furnace door is opened, the fixed rail 1 and the slide rail 7 are docked, and then the first driving steel cable 3 is connected to the trolley 9. At this time, when the lower end of the towing cable 2 is retracted and the upper end extends outwards, the upper end of the towing cable 2 can be put into the furnace. When the trolley 9 arrives next time, it is pulled out and fixed to the trolley 9, and the trolley 9 is driven into the furnace again through the second driving steel cable 4 and the towing cable 2.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are within the scope of the claims of the present invention pending approval.

Claims

1. A large workpiece heat treatment furnace trolley, characterized in that: include: A ground rail, which is arranged between the furnace mouth and the hoisting station of the heat treatment equipment; A trolley, which is placed on the ground rail via bottom wheels and reciprocates along the extending direction of the ground rail; A slide rail, which is slidably mounted on the upper surface of the trolley to extend into or out of the furnace opening of the heat treatment equipment, and a fixed rail corresponding to the slide rail is provided in the heat treatment equipment; A trolley is slidably mounted on the slide rail to enter or exit the heat treatment equipment along the slide rail and the fixed rail.

2. The large workpiece heat treatment furnace trolley according to claim 1, characterized in that: A stopper is provided at one end of the slide rail away from the heat treatment device, and a driving rod is provided at one end of the slide rail close to the heat treatment device, and the driving rod drives the slide rail to move.

3. The large workpiece heat treatment furnace trolley according to claim 1, characterized in that: A dovetail groove is provided on the upper surface of the trolley, and the slide rail is slidably assembled in the dovetail groove through a bottom slider.

4. The large workpiece heat treatment furnace trolley according to claim 1, characterized in that: A stopper is provided at one end of the fixed rail away from the trolley.

5. The large workpiece heat treatment furnace trolley according to claim 1, characterized in that: The trolley is welded from square steel or I-beam, and a first driving roller is provided inside the trolley. The first driving roller is perpendicular to the slide rail, a rotating wheel is provided on the first driving roller, a first driving steel cable is wound on the rotating wheel, and a first towing hook corresponding to the pulley is provided at the free end of the first driving steel cable.

6. The large workpiece heat treatment furnace trolley according to claim 5, characterized in that: A second driving roller is also provided inside the trolley, the second driving roller is perpendicular to the slide rail, a rotating wheel is provided on the second driving roller, a second driving steel cable is wound on the rotating wheel, and a second towing hook corresponding to the towing cable is provided at the free end of the second driving steel cable; A driven roller is arranged at one end of the fixed rail away from the trolley, one end of the towing cable passes around the driven roller and extends to the pulley, and is detachably fixed to the pulley through a connecting piece.

7. The large workpiece heat treatment furnace trolley according to claim 6, characterized in that: The first driving roller is correspondingly connected to the first driving motor The second driving roller is correspondingly connected to a second driving motor.

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