Rail type multi-stage double-acting hydraulic cylinder lifting platform car

Abstract

A rail type multistage double-acting hydraulic cylinder lifting platform truck is characterized in that circumferentially arranged balls are arranged between a rotating platform and an oil cylinder platform, a rack is arranged below the oil cylinder platform, a high-temperature dustproof cloth cover is installed in a gap part between the oil cylinder platform and the rack, and a walking driving device is fixedly installed in the rack and is in transmission connection with walking wheels through chain wheels. The double-acting oil cylinder is fixed in the rack and directly connected with the oil cylinder platform, the two ends of the oil pipe are connected with the double-acting oil cylinder and the hydraulic assembly respectively, the oil tank is directly connected with the hydraulic assembly in series, and the walking wheels (the front wheel and the rear wheel) are embedded in the track. The device is high in bearing capacity, stable in operation and long in service life, and efficient and reliable performance can be achieved under various working conditions such as high-temperature and corrosion environments.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic control, especially relate to a kind of hydraulic control mechanism of large-tonnage lifting platform for the dismounting of furnace bottom of chlorination furnace equipment in the process of preparing titanium tetrachloride by chlorination method. BACKGROUND

[0002] In the production process of preparing titanium tetrachloride by chlorination method, the process method is to produce by boiling chlorination, that is, to obtain titanium tetrachloride by reaction of chlorine, titanium-rich material and petroleum coke in a chlorination furnace. During the process, the furnace bottom of the main equipment chlorination furnace is disassembled and assembled frequently. Since the furnace bottom is heavy and the high-temperature chemical materials in the furnace are accumulated on the furnace bottom, there are many safety risk factors during disassembly and assembly. Therefore, lifting platform operation is widely used in this working condition.

[0003] In the prior art, the hydraulic rod type lifting platform cannot meet the load of large tonnage, and the platform cannot rotate, so accurate alignment is not possible. The existing technology uses a single-stage single-acting oil cylinder lifting platform. Since the lifting stroke is not enough, multiple heavy-duty jacks are arranged circumferentially on the platform to cooperate with manual operation. The following problems exist in the operation: when the material temperature has not decreased, personnel cannot approach normally, and the stability and synchronicity of operating multiple jacks are poor, which is prone to deflection. During the jacking and lowering process, it may cause jamming, causing damage to the furnace body equipment to varying degrees. The top platform cannot rotate, making it difficult to adjust when aligning the circumferential screw holes of the furnace bottom flange. When hoisting the newly installed furnace bottom onto the platform, the inertial impact force is large, causing damage to the equipment. Since it is a single-acting oil cylinder, it relies only on its own weight during the return stroke. When there is intermittent jamming during operation, sudden and rapid descent may occur, which is unstable and poses a safety risk. UTILITY MODEL CONTENTS

[0004] The utility model discloses to solve the defects and problems of poor lifting stability, difficult adjustment and alignment during installation, short service life of hydraulic cylinder in the prior art, and provides a hydraulic lifting mechanism with good lifting stability, long service life, required lifting stroke and large tonnage load capacity.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A rail-mounted multi-stage double-acting hydraulic cylinder lifting platform vehicle is provided with circumferentially arranged balls between the rotating platform and the oil cylinder platform. A rack is arranged below the oil cylinder platform. A high-temperature dustproof cloth cover is installed in the gap between the oil cylinder platform and the rack.

[0007] A walking driving device is fixedly installed in the rack and connected to the walking wheels through a chain wheel transmission.

[0008] The double-acting oil cylinder is fixed in the frame and directly connected with the oil cylinder platform.

[0009] The oil pipe is connected with the double-acting oil cylinder and the hydraulic assembly at two ends respectively, and the oil tank is directly connected with the hydraulic assembly in series.

[0010] The walking wheels are embedded on the track.

[0011] The beneficial effects of the above technical scheme are:

[0012] 1. The utility model solves the defects and problems of poor lifting stability, difficult adjustment and positioning during installation, short service life of the hydraulic cylinder in the prior art.

[0013] 2. The utility model realizes a hydraulic lifting mechanism with good lifting stability, long service life, required lifting stroke and large tonnage load capacity.

[0014] 3. The utility model has simple structure and is easy to operate. DETAILED DESCRIPTION

[0015] Figure 1 is a structural schematic view of the utility model.

[0016] In the figure: 1 - rotating platform, 2 - ball, 3 - oil cylinder platform, 4 - dust cover, 5 - walking driving device, 6 - fixed in the frame, 7 - double-acting oil cylinder, 8 - oil pipe, 9 - hydraulic assembly, 10 - oil tank, 11 - walking wheel, 12 - track. DETAILED DESCRIPTION

[0017] The utility model will be further described in detail below in combination with the drawings, but should not be understood as the scope of the subject matter described in the utility model being limited to the following embodiments, and any modification, replacement and change made according to ordinary technical knowledge and conventional means in the art without departing from the above technical idea of the utility model are included in the scope of the utility model.

[0018] A track type multi-stage double-acting hydraulic cylinder lifting platform vehicle is provided with circumferentially arranged balls 2 between a rotating platform 1 and an oil cylinder platform 3, a frame 6 is arranged below the oil cylinder platform 3, a high-temperature dust cover 4 is installed in the gap between the oil cylinder platform 3 and the frame 6, a walking driving device 5 is fixedly installed in the frame 6 and connected with walking wheels 11 through chain wheel transmission, a double-acting oil cylinder 7 is fixed in the frame 6 and directly connected with the oil cylinder platform 3, an oil pipe 8 is connected with the double-acting oil cylinder 7 and a hydraulic assembly 9 at two ends respectively, an oil tank 10 is directly connected with the hydraulic assembly 9 in series, and the walking wheels 11 (front and rear wheels) are embedded on a track 12.

[0019] Both driving of the lifting vehicle and lifting of the oil cylinder are operated through a handheld remote controller.

[0020] Under the drive of the motor, the hydraulic oil in the oil tank 10 is pumped into the hydraulic cylinder 7 through the hydraulic main bearing 9 (including electromagnetic reversing valve, superimposed throttle valve, hydraulic control valve and other combined parts) to realize the lifting and lowering of the rotary platform 1 and the oil cylinder platform 3 by the oil cylinder, so as to complete the lifting and falling process; the double-acting multi-stage hydraulic cylinder 7 is provided with two hydraulic cavities (rod cavity, rodless cavity), when lifting, the hydraulic oil is pumped into the rodless cavity, and the rod cavity returns oil; when falling, the oil is pumped into the rod cavity, and the rodless cavity returns oil. The lifting and lowering is realized by oil pressure, and the running process is safe and stable; the upper rotary platform 1 can rotate circumferentially at will under the action of the ball 2, and the flange screw hole is adjusted; the high-temperature dustproof cloth cover 4 is lifted and lowered synchronously with the hydraulic cylinder during operation, can effectively isolate the material from entering the rack 6, avoid the high-temperature material directly contacting the cylinder body and the oil pipe and other accessories, and play a safety protection role; the walking driving device 5 of the lifting vehicle drives the walking wheels 11 to move forward and backward along the track 12 through the speed reduction motor.

[0021] The utility model discloses design device carrying capacity is strong (in current working condition, design bearing is 80t), and the operation is stable, and the service life is long, can realize efficient, reliable performance under various working conditions such as high temperature, corrosion environment.

Claims

1. A rail-mounted multi-stage double-acting hydraulic cylinder lifting platform vehicle, characterized by: Circumferentially arranged balls (2) are provided between the rotating platform (1) and the cylinder platform (3); a frame (6) is provided below the cylinder platform (3); a high-temperature dustproof cloth cover (4) is installed in the gap between the cylinder platform (3) and the frame (6); a travel drive device (5) is fixed in the frame (6) and is connected to the travel wheel (11) through a sprocket drive; a double-acting oil cylinder (7) is fixed in the frame (6) and is directly connected to the cylinder platform (3); both ends of the oil pipe (8) are respectively connected to the double-acting oil cylinder (7) and the hydraulic assembly (9); the oil tank (10) is directly connected in series with the hydraulic assembly (9); and the travel wheel (11) is embedded in the track (12).

Images