CN219544072U - Nuclear power HDPE electric melting saddle welding auxiliary fixture - Google Patents

Abstract

The utility model discloses a nuclear power HDPE electric melting saddle welding auxiliary tool, wherein a main gear is arranged at a position, close to the end part, of a driving screw rod, a driven gear is arranged at the end part of the driven screw rod, teeth of the driving gear are meshed with teeth of a transmission gear, teeth of the transmission gear are meshed with gears of the driven gear, the driving screw rod and the driven screw rod are respectively provided with a scissor type lifting mechanism, the scissor type lifting mechanisms comprise a top seat, two symmetrically-distributed upper connecting rods, two symmetrically-distributed lower connecting rods, two symmetrically-distributed screw rod sliding blocks and a base, a detachable clamp is arranged at the lower part of the base and fixedly connected with the base through a fastening bolt, the detachable clamp is of an arc-shaped structure, the lower end surface of the base is provided with an arc-shaped surface matched with the detachable clamp, the top seat is provided with two hooks, and the hooks are provided with sleeved fastening belts. And the single driving input is convenient for welding operators to observe welding gaps in the operation process, and the welding quality is ensured.

Description

Nuclear power HDPE electric melting saddle welding auxiliary fixture

Technical Field

The utility model relates to the technical field of electric melting saddle welding auxiliary tools, in particular to a nuclear power HDPE electric melting saddle welding auxiliary tool. And more particularly to a mechanical connection thereof.

Background

Because of the performance of polyethylene material self, there is certain warpage in polyethylene electric melting saddle base, and there is the non-circular polyethylene pipe, when the overlap joint naturally, there is inhomogeneous clearance between saddle and the tubular product, consequently in order to reduce electric melting saddle and the clearance of tube socket surface when welding, guarantee the butt fusion face laminating, need press from both sides saddle base and tubular product. The conventional polyethylene electric melting saddle base is matched with a conventional pipeline system, the overall thickness of the conventional polyethylene electric melting saddle base is thinner, an upper and lower all-metal clamp fastening mode or a metal spiral lifting tool fastening mode or a strapping fastening mode is generally adopted, more manpower and working hours are consumed in the fastening modes, and scratches are easily caused on the surface of a polyethylene product by the metal clamp in the clamping process.

When the polyethylene pipe fitting is used in the nuclear power pipeline system, the design pressure is far higher than that of a conventional pipeline system due to higher requirements on system safety, so that the wall thickness of a welding part of the HDPE electric melting saddle seat in the nuclear power field is thicker, the deformation and the warping of the material of the electric melting saddle type pipe fitting and the out-of-roundness of the pipe are more remarkable, and therefore, a welding gap is more required to be adjusted, which also means that a larger clamping force is required during welding and fastening. When adopting traditional mode, then need consume more manpower man-hour just can accomplish the clamp before the welding, welding efficiency is limited, and welding quality also can receive the influence.

The existing auxiliary tool and technology are mainly suitable for clamping a conventional polyethylene electric melting saddle with a thin base and a pipeline system, and cannot well meet the clamping of an electric melting saddle type pipe fitting for thick-bottom nuclear power, and the existing auxiliary tool is as follows: the upper and lower all-metal clamp type dismounting is not easy, and scratches are easily caused on the surface of a polyethylene product; the metal spiral lifting tensioning tool has the advantages that main force acts on the upper end face of the branch pipe of the electric melting saddle, the pipe wall of the branch pipe is far smaller than that of the base, and the crushing risk of the branch pipe is greatly increased when the stress is overlarge, so that the clamped electric melting saddle pipe fitting is damaged; the force that pure strapping form fastening can provide is unbalanced, and is very high to operating personnel's experience level requirement, and is great to the manpower consumption, and just hardly carries out effective observation adjustment to welding gap in the in-process of fastening synchronization.

Disclosure of Invention

The utility model aims to provide a nuclear power HDPE electric melting saddle welding auxiliary tool which can efficiently and uniformly adjust and clamp a welding gap between a welding pipe fitting and a pipeline system, has small damage to the surface of a part to be welded, and can effectively improve the welding efficiency and welding quality of the nuclear power HDPE pipeline system. Overcomes the defects and shortcomings existing in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a nuclear power HDPE electric melting saddle welding auxiliary fixtures, includes the gear box, be equipped with driving gear, drive gear, driven gear in proper order in the gear box, above-mentioned driving gear sets up in driving screw near tip department, above-mentioned driven gear sets up in driven screw tip department, and the tooth of driving gear meshes with the tooth of drive gear, the tooth of drive gear meshes with the gear of driven gear, and driving screw and driven screw department all are equipped with scissor elevating system, scissor elevating system includes footstock, two symmetrical distribution's upper connecting rod, two symmetrical distribution's lower connecting rod, two symmetrical distribution's lead screw slider, base constitute, and the upper end and the footstock of two upper connecting rods are articulated, and the lower extreme of two upper connecting rods is articulated with corresponding lead screw slider respectively, and the lower extreme and the base of two lower connecting rods are articulated, and the base department has seted up the bolt hole, is equipped with fastening bolt in the bolt hole, and the lower part of base is equipped with detachable anchor clamps, and base fixed connection through fastening bolt, detachable anchor clamps are arc structure, the terminal surface shape and the shape of base forms two arc-shaped and forms two and can be equipped with the couple with the boss, and the arc-shaped hook is equipped with.

The utility model discloses a nuclear power HDPE electric melting saddle welding auxiliary tool, which is used for single driving input, saving labor and time, facilitating the observation of welding gaps by welding operators in the operation process, ensuring welding quality and improving welding efficiency. The clamping devices are symmetrically arranged, the triple gears are synchronously adjusted, and the welding quality is ensured to be uniform and reliable. The detachable clamp can be replaced and adjusted according to the specification of the product to be welded, and is better adapted to various pipeline systems. The fastening belt is used for binding the pipe to be welded, so that no clamping mark is generated on the surface of the pipe, and the integrity of a pipeline system is ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a diagram illustrating the use of the present utility model.

Fig. 3 is a schematic view of the detachable clamp according to the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The utility model discloses a nuclear power HDPE electric melting saddle welding auxiliary tool, which is different from the prior art in that: including gear box 7, be equipped with driving gear 9, drive gear 10, driven gear 11 in proper order in the gear box 7, above-mentioned driving gear 9 sets up in driving screw 13 and is close to tip department, and above-mentioned driven gear 11 sets up in driven screw 3 tip department, and the tooth of driving gear 9 meshes with the tooth of drive gear 10, the tooth of drive gear 10 meshes with the gear of driven gear 11 mutually, and driving screw 13 and driven screw 3 department all are equipped with scissors elevating system 14, in order to ensure clamping force balanced effect in electric melting saddle pipe branch pipe both sides, so scissors elevating system 14 sets up to a pair of, scissors elevating system 14 includes footstock 1, two symmetrical distribution's upper connecting rod 2, two symmetrical distribution's lower connecting rod 15, two symmetrical distribution's lead screw slider 16, base 4 constitute, and the upper end and footstock 1 of two upper connecting rod 2 are articulated, and the lead screw slider 16 that correspond respectively with the lower end of two lower connecting rod 15, and the lower end of two lower connecting rod 15 is articulated with the lead screw slider 16 that corresponds respectively, and the lower end of base 4 and the anchor clamps that are equipped with the anchor clamps that can dismantle the arc shape is equipped with 5 under the anchor clamps, and the base 4 is equipped with the arc-shaped hook 5 with the base 5, and the arc-shaped base is equipped with the detachable and can be equipped with the arc-shaped base 17, and the base 5 is equipped with the arc-shaped seat 17 and can be dismantled with the base 17, and the base 5 is equipped with the end 17.

In the concrete implementation, the center of the detachable clamp 5 is provided with a counter bore matched with the fastening bolt 6, so that the fastening bolt is convenient to connect, and the detachable clamp and the assembly of the to-be-welded electrofusion saddle pipe fitting are not interfered.

In particular, the end of the driving screw 13 is connected to a driving rod 8, which driving rod 8 is driven by a human or a motor.

In the specific implementation, the modulus and the number of teeth specification parameters of the driving gear 9 and the driven gear 11 are completely consistent, so that the rotation speeds of the driving gear 9 and the driven gear 11 are consistent, and the synchronous movement of the driving screw rod 13 and the driven screw rod 3 is ensured.

In specific implementation, the driving gear 9 drives the transmission gear 10, the transmission gear 10 drives the driven gear 11, and then the driving screw rod 13 and the driven screw rod 3 are driven to synchronously rotate, the driving screw rod 13 and the driven screw rod 3 are matched with the corresponding screw rod sliding blocks 16, so that the upper connecting rod 2 and the lower connecting rod 15 are far away or close, a top seat is lifted or put down, the fastening belt is driven to be tensioned or loosened, and finally the electric melting saddle pipe fitting is tightly attached or loosened to the outer surface of the pipe.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described above. For example, the fixed object is a round object of a non-accumulator or the structures of the lower accumulator support and the upper accumulator support are different, but the installation and fixing mechanisms are the same, etc. for a person skilled in the art. Several simple deductions or substitutions may be made without departing from the inventive concept, all of which should be considered to fall within the scope of the utility model.

Claims (4)

1. The utility model provides a nuclear power HDPE electric smelting saddle welding auxiliary fixtures which characterized in that: including gear box (7), be equipped with driving gear (9), drive gear (10), driven gear (11) in proper order in gear box (7), above-mentioned driving gear (9) set up in driving lead screw (13) are close to tip department, and above-mentioned driven gear (11) set up in driven lead screw (3) tip department, the tooth of driving gear (9) meshes with the tooth of drive gear (10), the tooth of drive gear (10) meshes with the gear of driven gear (11), and driving lead screw (13) and driven lead screw (3) department all are equipped with scissor elevating system (14), scissor elevating system (14) are including footstock (1), two upper connecting rod (2) of symmetric distribution, two lower connecting rod (15) of symmetric distribution, two lead screw slider (16) of symmetric distribution, base (4) constitute, and the upper end and footstock (1) of two upper connecting rod (2) are articulated, and the lower extreme of two upper connecting rod (2) is articulated with corresponding lead screw slider (16) respectively, and the upper end and two lower connecting rod (15) slider and corresponding lead screw slider (16) are equipped with bolt hole (4) are equipped with bolt hole (5) down, and bolt hole (4) are seted up in the base (4), can dismantle anchor clamps (5) pass through fastening bolt (6) and base (4) fixed connection, can dismantle anchor clamps (5) are arc structure, and the lower terminal surface of base (4) forms with can dismantle anchor clamps (5) shape complex arc surface, footstock (1) department is equipped with two couples (17), and couple (17) department is equipped with suit fastening band (12).

2. The nuclear power HDPE electric melting saddle welding auxiliary tool according to claim 1, wherein the welding auxiliary tool is characterized in that: and a counter bore (18) matched with the fastening bolt (6) is arranged at the center of the detachable clamp (5).

3. The nuclear power HDPE electric melting saddle welding auxiliary tool according to claim 1, wherein the welding auxiliary tool is characterized in that: the end part of the driving screw rod (13) is connected with a driving rod (8), and the driving rod (8) is driven by a man or a motor.

4. The nuclear power HDPE electric melting saddle welding auxiliary tool according to claim 1, wherein the welding auxiliary tool is characterized in that: the modulus and the number of teeth specification parameters of the driving gear (9) and the driven gear (11) are completely consistent, so that the rotation speed of the driving gear (9) and the rotation speed of the driven gear (11) are consistent, and synchronous movement of the driving screw rod (13) and the driven screw rod (3) is ensured.