Special equipment for phosphating thread surface

By using a horizontal main unit design and TA2 titanium material, combined with a moving wheel assembly and a screw lifting mechanism, the problems of instability and difficult maintenance of phosphating equipment have been solved, achieving stable operation and convenient maintenance.

CN223752894UActive Publication Date: 2026-01-02HENAN ZHONGYUAN SPECIAL STEEL EQUIP MFG CO LTD
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Patent Information

Application Number
CN202423207875.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-01-02
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing phosphating equipment suffers from instability and maintenance difficulties during operation, especially during the phosphating of internal and external threads at the ends of bars, where the equipment shakes severely and cleaning accumulated scale is time-consuming and labor-intensive.

Method used

It adopts a horizontal main unit design, is made of TA2 titanium material, and combines a moving wheel set, a screw lifting mechanism and a titanium liquid pump. It slowly moves with a cylinder to contact the end of the bar stock. It is equipped with a gas condenser and a float temperature control system to achieve stable phosphating liquid circulation and temperature control.

Benefits of technology

This ensures stable operation and convenient maintenance of the equipment, guarantees effective phosphating of the internal and external threads at the ends of the bar stock, and reduces the difficulty of equipment cleaning and maintenance time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to special equipment for phosphating thread surfaces, which is used for phosphating internal and external threads at the end of a bar and comprises a moving wheel set, a spiral lifting mechanism mounted on the moving wheel set, a titanium material horizontal main machine mounted on the spiral lifting mechanism and a titanium liquid pump mounted on the titanium material horizontal main machine, and an output port of the titanium liquid pump is communicated with a first titanium pipe. The titanium liquid pump is located in a lower half cavity of the titanium material horizontal main machine, an upper half cavity of the titanium material horizontal main machine is communicated with the lower half cavity of the titanium material horizontal main machine, and the top of the lower half cavity of the titanium material horizontal main machine is communicated with a gas condenser. An exhaust pipe is communicated between the gas condenser and an upper half cavity of the horizontal titanium material main machine, the gas condenser discharges condensed water to a water pan located below the upper half cavity and located in front of a lower half cavity of the horizontal titanium material main machine, and an electric heating bar for heating phosphating liquid is installed in the lower half cavity of the horizontal titanium material main machine. The device has the advantages of being simple in structure, convenient to maintain and high in practicability, and meets the requirement for thread surface phosphorization.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical technical field relates to a kind of special equipment for thread surface phosphating for the phosphating of bar end internal and external thread, with the characteristics of simple structure, maintenance is easy, strong practicality, meet the requirement of thread surface phosphating. BACKGROUND

[0002] Core rod product is important tool for pipe making, and demand is large in domestic and foreign markets, with broad prospects.Bar end phosphating is the key process for product rust prevention, and is the last checkpoint before product delivery.

[0003] The original phosphating machine is vertical and has integral structure, heavy block is installed in upper part of box, phosphating liquid is stored in lower part of box, and the equipment has high size ratio: length: width=3:1:1;the phosphating machine has unstable gravity center, fast walking speed and shaking;when phosphating, bar is first placed on support, phosphating machine is moved, so that end internal or external thread of bar is contained in cavity and tightly adheres to end face through mouth part, then heavy block is lowered to extrude heated phosphating liquid into cavity, so that thread is soaked in phosphating liquid, and end part is kept for about 60min in state of not leaking;but phosphating liquid is adhered to box bottom and box wall after heating to form scale, so that professional personnel needs to disassemble equipment when cleaning, which is time-consuming and laborious. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiencies in prior art, and provides a special equipment for thread surface phosphating, which meets the requirements of stable operation and convenient maintenance.

[0005] The technical scheme of the utility model is implemented as follows:

[0006] The utility model provides a special equipment for screw surface phosphating, including mobile wheel group, spiral lifting mechanism installed on mobile wheel group, titanium material horizontal host computer installed on spiral lifting mechanism, titanium liquid pump is installed on titanium material horizontal host computer, and the output of titanium liquid pump is connected with first titanium pipe into the upper half cavity of titanium material horizontal host computer, and titanium liquid pump is seated in the lower half cavity of titanium material horizontal host computer, and the upper half cavity of titanium material horizontal host computer is connected with the lower half cavity of titanium material horizontal host computer through upper drainage pipe and lower drainage pipe, and filter plate is arranged under upper drainage pipe and lower drainage pipe, gas condenser is connected with the top of the lower half cavity of titanium material horizontal host computer, and exhaust pipe is connected between gas condenser and the upper half cavity of titanium material horizontal host computer, and gas condenser passes through condenser water pipe and arranges the condensed water to the water pan of the lower half cavity of titanium material horizontal host computer in the front of the lower half cavity of titanium material horizontal host computer, and the bottom of the lower half cavity of titanium material horizontal host computer is provided with the drain outlet with stopcock, and the drain outlet is connected with the outside through the drain titanium pipe with drain valve, and the electric heating rod of heating phosphating liquid is installed in the lower half cavity of titanium material horizontal host computer, and the float ball and thermistor are installed on the tank cover of the lower half cavity of titanium material horizontal host computer, and the cylinder is connected with the tail of titanium material horizontal host computer, and the speed regulating throttle valve is installed on the cylinder.

[0007] The mobile wheel group includes two groups of front and rear roller groups, the wheel body of the roller group is made into a concave hole at one end, an adjusting pad is filled in the concave hole, the wheel body is worn on the wheel shaft through a key block, the other end of the wheel body is fixed with the wheel shaft through a pressing cover and screws, the wheel body is installed on the roller seat through the wheel shaft, four roller seats are fixed on the frame plate through screws, and a screw lifter stroke control slot is fixed at the tail of the frame plate.

[0008] The screw lifting mechanism is installed and fixed on the frame plate, the screw lifting mechanism includes screw lifters and stroke controllers of the screw lifters, the screw lifting mechanism is connected with the titanium material horizontal host computer through four screw rods of four screw lifters and screws, the lower half cavity of the titanium material horizontal host computer is welded with the upper half cavity, the upper half cavity is located at the upper front end of the titanium material horizontal host computer, and the lower half cavity of the titanium material horizontal host computer is fixed with the titanium liquid pump through screws; four screw lifters are connected with the mobile wheel group through edges and screws; a motor and a speed reducer driven by the motor are arranged in the middle of four screw lifters, the speed reducer transmits power to four screw lifters through the output torque of a transmission shaft, drives four screw rods of four screw lifters to drive the titanium material horizontal host computer to lift, and the height is controlled by a limit switch arranged on the screw lifter stroke control slot fixed at the tail of the frame plate of the mobile wheel group.

[0009] The titanium liquid pump comprises a motor at the upper portion, a titanium liquid pump body connected with the output shaft of the motor, a disc fixedly installed at the end of the motor through screws, a disc titanium alloy pipe fixedly installed on the disc, and a first titanium pipe connected with the disc titanium alloy pipe through flanges and screws after the disc titanium alloy pipe extends out of the disc.

[0010] The gas cylinder is fixed on the original support, and the gas cylinder is screwed with the U-shaped connector through the thread on the front end shaft, the U-shaped connector is connected with the connecting base through a pin shaft, and the connecting base is tightly connected with the horizontal main machine through screws.

[0011] The technical scheme of the utility model has the following positive effects:

[0012] 1. The upper portion of the horizontal main machine of the phosphating machine is connected together with the inner and outer threads of the end portion of the bar through sealing sheets, and cooperation is formed.

[0013] 2. The main machine, the upper cavity and the end portion of the bar are pressed tightly by the slow movement of the phosphating machine through the gas cylinder.

[0014] 3. The upper cavity is provided with a liquid outlet pipe, a reflux hole and an exhaust port for liquid passage and circulation.

[0015] 4. The horizontal main machine of the phosphating machine is provided with a gas condenser at the top for conversion and recovery of the flue gas generated by heating the phosphating liquid.

[0016] 5. The horizontal main machine of the phosphating machine is provided with a titanium liquid pump on the lower groove (the lower half cavity), which is connected to the upper cavity through a titanium pipe to ensure the liquid passage.

[0017] 6. The liquid level height is reflected by the floating ball in the lower groove of the horizontal main machine of the phosphating machine, and the product process temperature can be controlled by the combination of the electric heating rod and the heating resistor.

[0018] 7. The liquid discharge port at the lower right corner of the horizontal main machine of the phosphating machine facilitates the replacement of the phosphating liquid.

[0019] 8. The upstroke controller of the screw lifting device is used to satisfy the height alignment of the horizontal main machine and the bar.

[0020] 9. The wheel body of the moving wheel set is made into a concave shape to satisfy the left-right center alignment of the horizontal main machine and the bar.

[0021] 10. The gas cylinder is used to satisfy the forward and backward movement of the horizontal main machine, slowly contact and press the end portion of the bar.

[0022] The main body of the horizontal phosphating machine is made of TA2 titanium material, which has the characteristic of not sticking to the phosphating liquid. The new machine runs stably when used, is convenient to maintain, can perform phosphating on the inner and outer threads of the end portion of the bar, and satisfies the process requirements of customers. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the utility model.

[0024] Figure 2 The structure side view of the utility model.

[0025] Figure 3 The structure top view of the utility model.

[0026] Figure 4 The structure schematic diagram of the mobile wheel group of the utility model.

[0027] Figure 5 The structure schematic diagram of the roller group in the mobile wheel group of the utility model.

[0028] Figure 6 The structure schematic diagram of the roller in the mobile wheel group of the utility model.

[0029] Figure 7 The side view of the roller in the mobile wheel group of the utility model.

[0030] Figure 8 The main view of the roller group compression cover in the mobile wheel group of the utility model.

[0031] Figure 9 The side view of the roller group compression cover in the mobile wheel group of the utility model.

[0032] Figure 10 The main view of the roller group adjustment pad in the mobile wheel group of the utility model.

[0033] Figure 11 The side view of the roller group adjustment pad in the mobile wheel group of the utility model.

[0034] Figure 12 The schematic diagram of the titanium liquid pump of the utility model.

[0035] Figure 13 The structure schematic diagram of the horizontal main machine of the titanium material of the utility model.

[0036] Figure 14 The main view of the U-shaped connector of the cylinder front end and the horizontal main machine of the utility model. DETAILED DESCRIPTION

[0037] As Figure 1 , 2As shown in Figures 3, 4, and 13, a special device for phosphating thread surfaces includes a moving wheel assembly 1, a screw lifting mechanism 2 mounted on the moving wheel assembly 1, a titanium horizontal main unit 5 mounted on the screw lifting mechanism 2, and a titanium liquid pump 6 mounted on the titanium horizontal main unit 5. The output port of the titanium liquid pump 6 is connected to a first titanium pipe 29 that enters the upper cavity 32 of the titanium horizontal main unit 5. The titanium liquid pump 6 is located in the lower cavity of the titanium horizontal main unit 5. The upper cavity 32 and the lower cavity of the titanium horizontal main unit 5 are connected by an upper drain pipe 30 and a lower drain pipe 33. A filter plate 26 is provided below the upper drain pipe 30 and the lower drain pipe 33. A gas condenser 7 is connected to the top of the lower cavity of the titanium horizontal main unit 5. An exhaust pipe 31 connects the gas condenser 7 to the upper cavity of the titanium horizontal host 5. The gas condenser 7 discharges condensate through the condenser water pipe to the water receiving tray 34 located at the front of the lower cavity of the titanium horizontal host 5 below the upper cavity 32. A drain port with a stopcock 23 is opened at the bottom of the lower cavity of the titanium horizontal host 5. The drain port is connected to the outside through a drain titanium pipe 4 with a drain valve 22. An electric heating rod 24 for heating phosphating liquid is installed in the lower cavity of the titanium horizontal host 5. A float ball 27 and a thermal resistor 28 are installed on the box cover 25 of the lower cavity of the titanium horizontal host 5. A cylinder 8 is connected to the tail of the titanium horizontal host 5. A speed regulating throttle valve is installed on the cylinder 8. Two speed regulating throttle valves are installed on the cylinder 8.

[0038] like Figure 4 , 5 As shown in 6, 7, 8, 9, 10, and 11, the movable wheel set 1 includes two sets of rollers, front and rear. One end of the wheel body 11 of the roller set is made into a concave hole, and an adjusting shim 15 is filled in the concave hole. The wheel body 11 is passed through the wheel axle 14 by a key block. The other end of the wheel body 11 is fixed to the wheel axle 14 by a clamping cover 12 and a screw 13. The wheel body 11 is mounted on the roller seat through the wheel axle 14. The four roller seats are connected and fixed to the frame plate 9 by screws. A spiral lifter stroke control slot 10 is fixed at the tail of the frame plate 9.

[0039] like Figure 1 , 2, 4, 7, the screw lifting mechanism 2 is fixedly installed on the frame plate 9, the screw lifting mechanism 2 includes screw lifter and screw lifter self-provided stroke controller, the screw lifting mechanism 2 is connected with the titanium material horizontal main machine 5 through four screw lifter four screw rod supports upper part and screw, the lower half cavity of the titanium material horizontal main machine 5 is welded with the upper half cavity 32, the upper half cavity 32 is located on the upper front end of the titanium material horizontal main machine 5, the lower half cavity of the titanium material horizontal main machine 5 is fixed with the titanium liquid pump 6 through screw, four screw lifters are connected with the moving wheel group 1 through its corner and screw, motor and motor-driven speed reducer are arranged in the middle of four screw lifters, the speed reducer transmits power to four screw lifters through transmission shaft output torque, drives four screw rods of four screw lifters to drive the titanium material horizontal main machine 5 to lift, and the height is controlled by the limit switch 3 arranged on the tail fixed screw lifter stroke control slot 10 of the frame plate 9 on the moving wheel group 1.

[0040] Screw lifter corner four screw rod supports are connected with the moving wheel group 1 through 16-M12*40 screws, four screw rod supports upper part are connected with the titanium material horizontal main machine through 16-M12*40 screws, motor and speed reducer are arranged in the middle of the screw lifter, and the speed reducer outputs torque through decomposition transmission shaft, acts on the corner four screw rod supports, so that the equipment is lifted, and the height is controlled by the limit switch arranged on the tail fixed screw lifter stroke control slot 10 of the frame plate 9 on the moving wheel group 1.

[0041] As shown in Figure 12 , the titanium liquid pump 6 includes the motor 16 on the upper portion, the titanium liquid pump body 18 connected with the output shaft of the motor 16, the disc 17 fixedly installed on the motor end through screw, the disc titanium alloy pipe fixedly installed on the disc 17, and the disc titanium alloy pipe extending out of the disc through the flange 19 and the screw and being connected with the first titanium pipe 29. The upper portion of the titanium pump is a 1.5Kw motor 16.

[0042] As shown in Figure 14 , the cylinder 8 is fixed on the original support, the cylinder 8 is screwed through the thread on the front end shaft and the U-shaped connecting head 35, the U-shaped connecting head 35 is connected with the connecting base 37 through the pin shaft 36, and the connecting base 37 is tightly connected with the horizontal main machine 5 through screw

[0043] When the phosphating bar material is carried out, first, the workpiece is placed on the support, the moving wheel group 1 is slowly and stably contacted with the bar material end inner and outer thread through the cylinder and the two speed regulating throttle valves, until the bar material end is contained in the horizontal main machine front end cavity 32, and is tightly attached to the end face through the mouth sealing, then the heated phosphating liquid is pumped into the horizontal main machine front end cavity 32 through the connecting pipeline by the titanium alloy pump, the thread is soaked in the phosphating liquid, and the end cannot leak, and the process is maintained for about 60min, and the equipment is closed after the process is completed.

[0044] Because it is made of TA2 titanium alloy material, it will not stick to the phosphating liquid and accumulate dirt. When the phosphating liquid needs to be replaced after multiple uses, the operator can directly open and close the tail end liquid discharge valve of the horizontal main machine, saving time and effort.

Claims

1. A special device for phosphating screw surface, comprising a moving wheel set (1), a screw lifting mechanism (2) installed on the moving wheel set (1), a titanium material horizontal main machine (5) installed on the screw lifting mechanism (2), and a titanium liquid pump (6) installed on the titanium material horizontal main machine (5), characterized in that: The output port of the titanium liquid pump (6) is connected with the first titanium pipe (29) entering the upper half cavity (32) of the titanium material horizontal main machine (5), the titanium liquid pump (6) is seated in the lower half cavity of the titanium material horizontal main machine (5), the upper half cavity (32) of the titanium material horizontal main machine (5) is connected with the lower half cavity of the titanium material horizontal main machine (5) through the upper liquid discharge pipe (30) and the lower liquid discharge pipe (33), the filter plate (26) is arranged below the upper liquid discharge pipe (30) and the lower liquid discharge pipe (33); the gas condenser (7) is connected with the top of the lower half cavity of the titanium material horizontal main machine (5), the exhaust pipe (31) is connected between the gas condenser (7) and the upper half cavity of the titanium material horizontal main machine (5), the gas condenser (7) discharges the condensed water to the water receiving disc (34) in front of the lower half cavity of the titanium material horizontal main machine (5) below the upper half cavity (32) through the condenser water pipe, the liquid discharge port with the plug (23) is arranged at the bottom of the lower half cavity of the titanium material horizontal main machine (5), the liquid discharge port is connected with the outside through the liquid discharge titanium pipe (4) with the liquid discharge valve (22), the electric heating rod (24) for heating phosphating liquid is installed in the lower half cavity of the titanium material horizontal main machine (5), the float ball (27) and the thermal resistance (28) are installed on the tank cover (25) of the lower half cavity of the titanium material horizontal main machine (5); the air cylinder (8) is connected with the tail of the titanium material horizontal main machine (5), the speed regulating throttle valve is installed on the air cylinder (8).

2. A special apparatus for phosphating of thread surfaces according to claim 1, characterized in that: The mobile wheel set (1) comprises two groups of front and rear roller sets, one end of a wheel body (11) of the roller set is made into a concave hole, an adjusting pad (15) is filled in the concave hole, the wheel body (11) is penetrated on a wheel shaft (14) through a key block, the other end of the wheel body (11) is fixed together with the wheel shaft (14) through a pressing cover (12) and a screw (13), the wheel body (11) is installed on a roller seat through the wheel shaft (14), four roller seats are fixed on a frame plate (9) through screws, a screw lifter stroke control slot (10) is fixed at the tail of the frame plate (9).

3. A special purpose apparatus for phosphating threaded surfaces as claimed in claim 1 wherein: The screw lifting mechanism (2) is fixed on the frame plate (9), and the screw lifting mechanism (2) comprises a screw lifter and a stroke controller of the screw lifter, the screw lifting mechanism (2) is connected with the titanium horizontal main machine (5) through four screw rods of four screw lifters and screws, the lower half cavity of the titanium horizontal main machine (5) is welded with the upper half cavity (32), the upper half cavity (32) is located at the upper front end of the titanium horizontal main machine (5), the lower half cavity of the titanium horizontal main machine (5) is fixed with the titanium liquid pump (6) through screws; the four screw lifters are connected with the moving wheel set (1) through edges and corners and screws, a motor and a speed reducer driven by the motor are arranged in the middle of the four screw lifters, the speed reducer transmits power to the four screw lifters through a transmission shaft output torque, and the four screw rods of the four screw lifters drive the titanium horizontal main machine (5) to lift, and the height is controlled by a limit switch (3) arranged on a screw lifting mechanism stroke control slot (10) at the tail of the frame plate (9) of the moving wheel set (1).

4. A special purpose apparatus for phosphating threaded surfaces as claimed in claim 1 wherein: The titanium liquid pump (6) comprises a motor (16) at the upper portion, a titanium liquid pump body (18) connected with an output shaft of the motor (16), a disc (17) fixedly installed at the end of the motor through screws, a disc titanium alloy pipe fixedly installed on the disc (17), and the disc titanium alloy pipe is connected with a first titanium pipe (29) through a flange (19) and screws after extending out of the disc.

5. A special apparatus for phosphating of thread surfaces according to claim 1, characterized in that: The air cylinder (8) is fixed on the original support, the air cylinder (8) is screwed with a U-shaped connector (35) through threads on the front end shaft, the U-shaped connector (35) is connected with a connecting base (37) through a pin shaft (36), and the connecting base (37) is tightly connected with the horizontal main machine (5) through screws.