Heating furnace door control device

Abstract

The utility model discloses a heating furnace door control device which comprises a rack, a lifting driving unit arranged on the rack and a furnace door driven by the lifting driving unit to do lifting motion. The lifting driving unit comprises a driving part, a swing assembly and pull ropes, wherein the swing assembly is driven by the driving part to swing anticlockwise or clockwise around a horizontal shaft, the pull ropes are connected to the two sides of the swing assembly, and the other ends of the pull ropes are connected to the upper end of the furnace door. According to the furnace door with the door plates, the door plates can be driven to ascend and descend at the same time, and the consistency of vertical movement of the door plates can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heating furnace door, in particular, relate to a kind of heating furnace door control device. BACKGROUND

[0002] Insulated joint is an important connecting component of steel rail, in recent years, with the continuous improvement of domestic train speed and the gradual increase of load, the insulated joint of steel rail rubber joint is subjected to greater impact force, longitudinal force and the like, which requires the insulated joint to have not only good insulation performance, but also high strength, high rigidity and good fatigue resistance to ensure the safe operation of railway. The insulated joint includes a fishplate and a protective plate arranged around the fishplate. An insulation layer plate is arranged between the fishplate and the protective plate. The insulation layer plate can be heated and melted to connect the fishplate and the protective plate together to form an insulated joint. During the production of the insulated joint, the insulated joint is placed in a mold, and then the mold is placed in a heating furnace for heating. The insulation layer plate is melted to realize the fixed connection of the fishplate and the protective plate. Since the three adjacent sides of the heating furnace are inlets and outlets, the inlets and outlets need to be blocked by furnace doors during heating to prevent heat loss. The furnace doors correspond to the three inlets and outlets of the heating furnace, i.e., the furnace doors have three sides of blocking, i.e., form a "U" type structure. In order to ensure that the "U" type structure furnace door can stably perform lifting action, a corresponding furnace door control device needs to be designed.

[0003] In the prior art, a high-efficiency energy-saving air heating furnace disclosed in Chinese patent authorization announcement No. CN220959534U is provided with a furnace door at the inlet and outlet of the heating furnace. A lifting mechanism for driving the furnace door to perform lifting action is arranged outside the furnace door. The lifting mechanism includes a bracket and a first driving motor. The two sides of the furnace door and the two sides of the bracket are slidingly connected. Wire wheels are arranged at the two ends of the top of the bracket. Steel wires are installed on the two wire wheels. A take-up drum is fixed to the output end of the first driving motor. One end of the steel wire is fixedly connected to the take-up drum. The other end of the steel wire is fixedly connected to the furnace door. In this scheme, one inlet and outlet are provided on one side of the heating furnace. The door provided on the inlet and outlet is in a plate-shaped structure. Two steel wires are connected above the door. The first driving motor drives the steel wires to perform lifting movement, which can drive the door to move up and down. However, if the door is in a "U" type structure or a "mouth" type structure, the above scheme cannot guarantee that the other faces of the door perform lifting action synchronously when the door is driven to lift.

[0004] Therefore, it is necessary to provide a heating furnace door control device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a heating furnace door control device, which can drive multiple door plates to perform lifting action simultaneously and can guarantee the consistency of the up-and-down movement of the multiple door plates.

[0006] The utility model discloses a heating furnace door control device through following technical scheme realizes above -mentioned purpose: a heating furnace door control device, it includes frame, set up on the frame lift drive unit and the door that is driven to lift by the lift drive unit, the lift drive unit includes drive piece, the swing assembly that is driven to swing around horizontal shaft counterclockwise or clockwise by the drive piece and the pull rope that is connected in the swing assembly both sides, the other end of pull rope all is connected in the upper end of door.

[0007] Further, the door comprises at least a first door panel and a second door panel which are opposite to each other.

[0008] Further, the swing assembly comprises a horizontal rotating shaft rotatably arranged on the frame, a swing arm fixedly arranged on the horizontal rotating shaft, and a lever fixed at one end of the horizontal rotating shaft, and the other end of the lever is driven to swing by the drive piece.

[0009] Further, the pull rope comprises a first pull rope connected at one end of the swing arm and a second pull rope connected at the other end of the swing arm, the first pull rope is connected at the upper end of the first door panel, and the second pull rope is connected at the upper end of the second door panel.

[0010] Further, two swing arms are arranged in front of and behind each other, and the lever is arranged between the two swing arms.

[0011] Further, a pair of bearing seats are arranged on the frame, and the horizontal rotating shaft is rotatably arranged on the bearing seats through bearings.

[0012] Further, a plurality of guide assemblies are arranged on the frame to guide the pull rope.

[0013] Further, the guide assembly comprises a support seat and a guide wheel rotatably arranged on the support seat, and a limiting rod is arranged on the support seat.

[0014] Further, pulleys are arranged on both sides of the door, and corresponding grooves for the pulleys to slide up and down are arranged on the frame.

[0015] Compared with the prior art, the heating furnace door control device has the following advantages: for the door with multiple door panels, the lift drive unit can simultaneously drive multiple door panels to lift, and the consistency of the up and down movement of the multiple door panels can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The structure diagram of the heating furnace door control device is shown in the utility model embodiment.

[0017] Fig. 2The utility model discloses a heating furnace door control device structure schematic diagram for embodiment of the utility model;

[0018] Fig. 3 The utility model discloses a heating furnace door control device structure schematic diagram for embodiment of the utility model removes the frame,

[0019] The figure number indicates:

[0020] 4-heating furnace door control device, 41-frame, 42-lifting drive unit, 421-driving piece, 422-oscillating assembly, 4221-horizontal rotation shaft, 4222-oscillating arm, 4223-lever piece, 4224-bearing, 4225-bearing seat, 423-pull rope, 4231-first pull rope, 4232-second pull rope, 43-furnace door, 431-first door plate, 432-second door plate, 433-third door plate, 44-guiding assembly, 441-supporting seat, 442-guiding wheel, 443-limit rod, 45-pulley, 46-slotted. Specific implementation

[0021] Please refer to Figs. 1-3 The utility model discloses a heating furnace door control device 4, it includes frame 41, set up on frame 41 lifting drive unit 42 and the furnace door 43 that is driven to lift and move by lifting drive unit 42, lifting drive unit 42 includes driving piece 421, the oscillating assembly 422 that is driven around horizontal axis counterclockwise or clockwise by driving piece 421 and the pull rope 423 connected in the two sides of oscillating assembly 422, the other end of pull rope 423 is connected in the upper end of furnace door 43.

[0022] In the embodiment, the middle part of frame 41 is provided with heating furnace A, and three sides of heating furnace A are import and export, correspondingly, furnace door 43 includes three door plates, three door plates are connected to form "U" type structure, and three door plates are first door plate 431 and second door plate 432 that are opposite left and right and third door plate 433 that connects first door plate 431 and second door plate 432 together.

[0023] In other embodiments, furnace door 43 includes two door plates, and two door plates are opposite left and right, and two door plates are first door plate 431 and second door plate 432 that are opposite left and right.

[0024] In another embodiment, furnace door 43 includes four door plates, four door plates are connected to form "mouth" type structure, and four door plates are first door plate 431 and second door plate 432 that are opposite left and right, third door plate and fourth door plate that are opposite front and back.

[0025] Therefore, the specific structure of furnace door 43 can be set according to actual conditions, which is not limited here, but furnace door 43 at least includes first door plate 431 and second door plate 432 that are opposite left and right.

[0026] The swing assembly 422 comprises a horizontal rotating shaft 4221 rotatably arranged on the frame 41, a swing arm 4222 fixedly arranged on the horizontal rotating shaft 4221, and a lever 4223 having one end fixedly arranged on the horizontal rotating shaft 4221, and the other end driven to swing by the driving member 421.

[0027] The frame 41 is provided with a pair of bearing seats 4225, and the horizontal rotating shaft 4221 is rotatably arranged on the bearing seats 4225 through bearings 4224. When the lever 4223 is driven to swing by the driving member 421, the horizontal rotating shaft 4221 can be driven to rotate about the horizontal shaft.

[0028] In the embodiment, the driving member 421 is a pneumatic cylinder, and the output shaft end of the pneumatic cylinder is rotatably connected to one end of the lever 4223. The lever 4223 is driven to swing counterclockwise or clockwise about the horizontal shaft by the pneumatic cylinder, so as to realize the swing arm 4222 swinging counterclockwise or clockwise about the horizontal shaft. Specifically, the output shaft end of the pneumatic cylinder is connected to the lever 4223 through a pin shaft, and the bottom of the lever 4223 is provided with a mounting hole for mounting the pin shaft. The mounting hole can be a circular hole or a waist-shaped hole, or a hole with other shapes, but the size of the mounting hole is larger than the diameter of the pin shaft, so as to form a clearance for the pin shaft to slide. When the lever 4223 is driven to swing left or right by the pneumatic cylinder, the horizontal position and the vertical position of the lever 4223 are both changed, and the movement path is an arc. Therefore, the lever 4223 is driven to swing counterclockwise or clockwise about the horizontal shaft by the pneumatic cylinder, so as to realize the swing arm 4222 swinging counterclockwise or clockwise about the horizontal shaft.

[0029] In other embodiments, the driving member 421 can be provided with other driving members such as a servo motor. If a servo motor is used, the lifting precision of the oven door 43 can be more accurately ensured. The driving member 421 can be arranged according to actual conditions, which is not limited herein.

[0030] The pull rope 423 is a steel wire rope or a rope made of other materials, which is not limited herein. The pull rope 423 comprises a first pull rope 4231 connected to one end of the swing arm 4222 and a second pull rope 4232 connected to the other end of the swing arm 4222. The first pull rope 4231 is connected to the upper end of the first door panel 431, and the second pull rope 4232 is connected to the upper end of the second door panel 432.

[0031] In the embodiment, two swing arms 4222 are arranged in front of and behind the swing arm 4222, and the lever 4223 is arranged between the two swing arms 4222. Therefore, correspondingly, two first pull ropes 4231 are connected to the first door panel 431, and two second pull ropes 4232 are connected to the second door panel 432. Two pull ropes are arranged on each door panel, which can ensure the stability of the door panel lifting.

[0032] In other embodiments, the number and position of the swing arms 4222, lever pieces 4223, first pull ropes 4231, and second pull ropes 4232 are set according to actual conditions, which are not limited herein.

[0033] In order to ensure that the pull ropes 423 can smoothly move up and down, the rack 41 is provided with a plurality of guide assemblies 44 for guiding the pull ropes 423, the guide assemblies 44 comprising support seats 441 and guide wheels 442 rotatably arranged on the support seats 441, and the support seats 441 are provided with limiting rods 443, which can prevent the pull ropes 423 from disengaging from the guide wheels 442.

[0034] In order to ensure the stability of the up and down movement of the furnace door 43, the furnace door 43 is provided with pulleys 45 on both sides, and correspondingly, the rack 41 is provided with corresponding sliding grooves 46 for the pulleys 45 to slide up and down.

[0035] When the furnace door 43 needs to be closed, the output shaft end of the driving piece 421 is extended, the driving lever piece 4223 swings clockwise, the horizontal rotating shaft 4221 can rotate clockwise around the horizontal shaft, and the swing arm 4222 swings clockwise, in this process, the lower end of the swing arm 4222 moves to one side of the first door plate 431 to make the first pull rope 4231 descend, and the upper end of the swing arm 4222 moves to one side of the second door plate 432 to make the second pull rope 4232 descend, the first pull rope 4231 and the second pull rope 4232 descend simultaneously, the first door plate 431, the second door plate 432, and the third door plate 433 descend simultaneously, and the furnace door 43 is closed; when the furnace door 43 needs to be opened, the output shaft end of the driving piece 421 is retracted, the driving lever piece 4223 swings counterclockwise, the horizontal rotating shaft 4221 can rotate counterclockwise around the horizontal shaft, and the swing arm 4222 swings counterclockwise, in this process, the lower end of the swing arm 4222 moves away from one side of the first door plate 431 to make the first pull rope 4231 ascend, and the upper end of the swing arm 4222 moves away from one side of the second door plate 432 to make the second pull rope 4232 ascend, the first pull rope 4231 and the second pull rope 4232 ascend simultaneously, the first door plate 431, the second door plate 432, and the third door plate 433 ascend simultaneously, and the furnace door 43 is opened.

[0036] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept, a number of modifications and improvements can be made, which are all within the scope of protection of the present application.

Claims

1. A furnace door control apparatus for a heating furnace, characterized by: It includes a frame, a lifting driving unit arranged on the frame, and a furnace door driven by the lifting driving unit to perform lifting movement, the lifting driving unit includes a driving member, a swing assembly driven by the driving member to swing counterclockwise or clockwise around a horizontal shaft, and a pull rope connected to both sides of the swing assembly, and the other ends of the pull rope are connected to the upper ends of the furnace door.

2. A furnace door control apparatus as claimed in claim 1, wherein: The furnace door includes at least a first door panel and a second door panel opposite to each other.

3. A furnace door control apparatus as claimed in claim 2, wherein: The swing assembly includes a horizontal rotating shaft rotatably arranged on the frame, a swing arm fixed to the middle of the horizontal rotating shaft, and a lever member fixed to one end of the horizontal rotating shaft, and the other end of the lever member is driven by the driving member to swing.

4. A furnace door control apparatus as claimed in claim 3, wherein: The pull rope includes a first pull rope connected to one end of the swing arm and a second pull rope connected to the other end of the swing arm, the first pull rope is connected to the upper end of the first door panel, and the second pull rope is connected to the upper end of the second door panel.

5. A furnace door control apparatus as claimed in claim 3, wherein: The swing arm is arranged in front of and behind the swing arm, and the lever member is arranged between the two swing arms.

6. A furnace door control apparatus as claimed in claim 3, wherein: A pair of bearing seats are arranged on the frame, and the horizontal rotating shaft is rotatably arranged on the bearing seats through bearings.

7. A furnace door control apparatus as claimed in claim 1, wherein: A plurality of guide assemblies are arranged on the frame to guide the pull rope.

8. A furnace door control apparatus as claimed in claim 7, wherein: The guide assembly includes a support seat and a guide wheel rotatably arranged on the support seat, and a limiting rod is arranged on the support seat.

9. A furnace door control apparatus as claimed in claim 1, wherein: Pulleys are arranged on both sides of the furnace door, and corresponding grooves for the pulleys to slide up and down are arranged on the frame.

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