CN2304484Y - Improved pipe expander for pipe heat exchanger - Google Patents

Abstract

The utility model relates to an improved pipe expander for a heat exchanger, belonging to the field of mechanical manufacture. Positioning devices are installed on the mould guide pillar of both sides of a machine table, the positioning devices are a rectangular base body, and screw holes are arranged on the positioning devices for screwing driving screw rods. Both sides of the machine table are provided with the guide screw rods, and driven bevel gears are arranged below the guide screw rods. A transmission shaft is horizontally arranged below the machine table, both sides of the driving shaft are provided with driving bevel gears, and the driving bevel gears are combined with the driven bevel gears. The transmission shaft is driven by transmission gears through a motor. The positioning devices are driven to move up and down by the process that the guide screw rods are driven to rotate by the motor, and thus, the utility model can be positioned on the required height to save the trouble of adjusting and proof reading.

Description

The tubing heat exchanger pipe expander of improvement

The utility model relates to pipe expander, particularly relates to a kind of tubing heat exchanger pipe expander of improvement, belongs to mechanical manufacturing field.

General tubing heat exchanger, tie up to and wear a bent copper pipe that returns between a plurality of stacked fin, because the fin very thin thickness, cause copper pipe to be set on the fin after, must relend and help expander, copper pipe can be fixed on the fin, and then be nested with fixed bending tube at two copper tube ends of desiring to be connected, can make copper pipe be connected into single pipeline, or many pipelines, and become the single hose heat exchange its, or multi tube heat exchanger.Generally be used for maker with the copper pipe expander, as " heat exchanger expander press ", it mainly is to be provided with a plurality of worker's mould pillars on board, and worker's mould element that installing can slide up and down on worker's mould pillar, this worker's mould element system is from lower to upper in regular turn by a fixed head, a plurality of support plates and an increased pressure board are formed, and above increased pressure board, be equiped with worker's mould gripper shoe, and in worker's mould element, wear a plurality of axles, on worker's mould element, install the expander pressue device in addition, with auxiliary drive, and can promote worker's mould element by expander pressue device and auxiliary drive, and the axle that drives in worker's mould element moves down, and be able to fold up the copper pipe in the square heat-exchanger under worker's mould element by the axle expansion that moves down, so, be the copper pipe in the expansible heat exchanger, and copper pipe is fixed on the fin.But, because heat exchanger has various height dimension design, so, when worker's mould element moves down expander, must be located, the side makes the axle in worker's mould element be expanded copper pipe fully, and control the mode that worker's mould element moves height and position usually, be with two relative locating pieces with the mode of screw locking with its clamping on each worker's mould pillar of worker's mould element, and can be by locating piece to withstand the worker's mould element in moving, to control the height that it moves, still, because worker's mould pillar that support worker mould element moves up and down has at least more than two, so must on two pillars, install locating piece respectively, because they are independent respectively installing, therefore, the necessary accurately height between the location of proofreading piece, make two locating pieces remain on sustained height, if highly differ,, even cause deflection and influence the expander operation then because of a support point imbalance influences the accuracy that worker's mould element moves.And owing to locating piece must independently be installed, so when reaching fixedly, check and correction extremely bothers inconvenience, and also inaccurate; And, if the size of tubing heat exchanger is not simultaneously, then must install the height and position of locating piece again, and must proofread its height again, therefore, when the tubing heat exchanger of differing heights is made in each conversion, must repeat this operation, very trouble inconvenience.And, because locating piece is only fixed against screw, during this worker's mould element punching press expander, the impulse force of locating piece during easily because of the relation of gravity and punching press, gradually to lower slider, so, must be behind certain punching press number of times, again adjust the height of locating piece, can guarantee the accurate travel displacement of worker's mould element, thus very loaded down with trivial details in operation.

The purpose of this utility model is to provide a kind of improved tubing heat exchanger pipe expander and positioner, reaches to overcome many shortcomings of the prior art, improves the purpose of the degree of accuracy and the various programs of simplification.

The utility model is achieved in that in the both sides of board and respectively is provided with a driving screw, its below is equiped with a driven bevel pinion, and be equiped with a power transmission shaft in the board lower horizontal, driving bevel gear is equipped with in both sides at power transmission shaft, and its driven bevel pinion with the driving screw below agrees with mutually, and this power transmission shaft is driven through travelling gear by motor.

The utility model has the advantages that: when the tubular radiator of expansion different size height, can conveniently adjust the location height, to save the trouble of adjusting the location; Positioner can make it can add strong fix with hydraulic-driven in the expander process, is shifted because of the vibration that punching press was produced preventing in punching course.

Description of drawings of the present utility model is as follows: Fig. 1 is that front view Fig. 2 of the present utility model is that local top view Fig. 3 of the present utility model is that positioner stereogram Fig. 4 of the present utility model is that positioner cutaway view Fig. 5 of the present utility model is that action enforcement illustration Fig. 6 of the present utility model is that driving screw of the present utility model and power transmission shaft assembling view Fig. 7 are that power transmission shaft of the present utility model unclamps among the action diagram figure of driving bevel gear

1--------------------------board

11------------------------worker's mould guide pillar

12-------------------------driving screw

121----------------------driven bevel pinion

13-------------------------power transmission shaft

131----------------------driving bevel gear

132--------------------heap shape expansion locating ring

1321-------------------------bolt

14--------------------------motor

141-----------------------travelling gear

2------------------------the drift module

21------------------------the drift axle

3------------------------positioner

31--------------------------pedestal

311-------------------------oilhole

32--------------------------screw

33--------------------------guide hole

34------------------------L type groove

35--------------------------jig arm

351-------------------------screw

352-----------------------the adjustment screw

353-------------------------spring

36--------------------------cylinder pressure

361-------------------------big envelope

362-------------------------piston

363-------------------------pull bar

Embodiment of the present utility model is as follows: embodiment 1 is in conjunction with Fig. 1, Fig. 2

On board 1, be provided with a plurality of worker's mould guide pillars 11, and on worker's mould guide pillar 11, be equiped with the drift module 2 that can slide up and down, in drift module 2, wear a plurality of drift axles 21, on drift module 2, be equiped with a hydraulic cylinder (not expression in graphic) in addition, promote drift module 2 by hydraulic cylinder, and the drift axle 21 that drives in the drift module 2 moves down, and is able to fold up copper pipe at 2 times square heat-exchangers of drift module by drift axle 21 expansions that move down.

The both sides that mainly are board 1 respectively are provided with a driving screw 12, and the below of driving screw 12 is equiped with a driven bevel pinion 121, and be equiped with a power transmission shaft 13 in board 1 lower horizontal, be equiped with driving bevel gear 131 in the both sides of power transmission shaft 13, and its driven bevel pinion 121 with driving screw 12 belows agrees with mutually, and this power transmission shaft 13 is driven through travelling gear 141 by a motor 14.Embodiment 2 is in conjunction with Fig. 6, Fig. 7

The driving bevel gear 131 of power transmission shaft 13 both sides installing, be equiped with a cone expansion locating ring 132 between power transmission shaft 11 and the driving bevel gear 131, can be by the bolt 1321 that loosens on it, make it be the state of getting loose, this driving bevel gear 131 and power transmission shaft 13 compositions are from state, (as shown in Figure 7) at this moment, board 1 left side, the positioner 3 of right both sides can tune to the equal altitudes position, after positioner 3 is adjusted the location,, and driving bevel gear 131 is fixed on the power transmission shaft 13 again with 132 expansions of the cone expansion locating ring in the driving bevel gear 131, and the action of this fine-tune positioning device 3, only when making assembling, need adjust check and correction, after this, just need not to adjust again check and correction.Embodiment 3 is in conjunction with Fig. 3, Fig. 4, Fig. 5

On the driving screw 12 and worker's mould guide pillar 11 of board 1 both sides, be equiped with a location device 3 respectively, (as shown in Figure 3) this positioner is a rectangle pedestal 31, which is provided with a screw 32 and a plurality of guide hole 33 communicates, this guide hole 33 is set on worker's mould guide pillar 11, screw 32 then revolves and is located on the driving screw 12, and on pedestal 31, offer a L type groove 34, it communicates with the guide hole 33 of a side wherein, both made a side of pedestal form a jig arm 35, on pedestal 31, one cylinder pressure 36 is housed again with respect to jig arm 35 another sides, its inner face is provided with a big envelope 361, and in cylinder pressure 36, be arranged with a piston 362, which is provided with a pull bar 363, and this pull bar 363 passes big envelope 361, and pass jig arm 35, and pull bar 363 can be linked together with jig arm 35, on pedestal 31, be provided with an oilhole 311 again, this oilhole 311 vertically feeds to cylinder pressure 36, on jig arm 35, be provided with a screw that runs through 351 in addition, be provided with one and adjust screw 352 in screw 351, sheathed spring 353 makes to lean and is being positioned on pedestal 3 medial surfaces of L type groove 34 on it.(as shown in Figure 4)

According to above-mentioned structure, if in the time of will adjusting the height of positioner 3, because driving screw 12 belows of board 1 both sides are provided with driven bevel pinion 121, and the two ends of power transmission shaft 13 are equiped with driving bevel gear 131, and this power transmission shaft 13 is driven by motor 14, therefore, when motor 14 rotates, can drive driving screw 12 by power transmission shaft 13 and rotate simultaneously, and because positioner 3 is to be installed on the driving screw 12, so, the positioner 3 of board 1 both sides can move up and down synchronously, and can block drift module 2 by positioner 3, and can control the stroke of drift module 2, (as shown in Figure 5), therefore, if in the time of will adjusting positioner 3, can make things convenient for and adjust its upper-lower position arbitrarily, exempted in the known technology and must be installed the trouble of location.Moreover, after positioner 3 is adjusted the location, and when carrying out the punching press expander, for gravity or the machine vibration that prevents punching press makes positioner produce displacement, can hydraulic oil be squeezed into the oilhole 311 of pedestal 31 tops of positioner 3 by hydraulic system, because pedestal 31 is equiped with a cylinder pressure 36, pull bar 363 on the cylinder pressure 36 is connected the jig arm 35 on the pedestal 31, and jig arm 35 is an one with pedestal 31, between formation jig arm 35 and pedestal 31, be equipped with worker's mould guide pillar 11, therefore, piston 362 after hydraulic oil enters cylinder pressure 36 in the cylinder pressure 36 outwards moves, and pull bar 363 is inwardly contracted, can spur jig arm 35 simultaneously, jig arm 35 inwardly be pressed from both sides lean on, and can clamp worker's mould guide pillars 11 by jig arm 35, thereby positioner can be added strong fix, gravitational pressing when preventing that drift module 2 from carrying out the punching press expander or mechanical oscillation make positioner 3 produce displacements.

Claims (3)

1, a kind of tubing heat exchanger pipe expander of improvement, tie up to board and be provided with a plurality of worker's mould guide pillars, on worker's mould guide pillar, be equiped with the drift module, wear a plurality of drift axles in it, on the drift module, be equiped with a hydraulic cylinder in addition, the expansion of drift axle folds up the copper pipe in the square heat-exchanger under the drift module, it is characterized in that: the both sides at board respectively are provided with a driving screw, its below is equiped with a driven bevel pinion, and be equiped with a power transmission shaft in the board lower horizontal, both sides at power transmission shaft are equiped with driving bevel gear, and it agrees with mutually with driven bevel pinion of guided mode below, and this power transmission shaft is driven through travelling gear by motor.

2, according to the tubing heat exchanger pipe expander of the improvement of claim 1, it is characterized in that: be provided with the cone expansion locating ring between described power transmission shaft and driving bevel gear.

3, tubing heat exchanger pipe expander according to the improvement of claim 1, it is characterized in that: be equiped with positioner respectively on the driving screw of described board both sides and the worker's mould guide pillar, this positioner is a square type pedestal, be provided with screw and a plurality of guide hole thereon, this guide hole system is set on worker's mould guide pillar, screw then revolves and is located on the driving screw, and on pedestal, offer L type groove, it communicates with the guide hole of a side wherein, both made a side of pedestal form a jig arm, another side with respect to jig arm is equiped with a cylinder pressure on pedestal again, is installed with a big envelope at the cylinder pressure inner face, and in cylinder pressure, be arranged with a piston, which is provided with a pull bar, this pull bar passes big envelope and passes jig arm, and pull bar can be linked together with jig arm, be provided with an oilhole again on pedestal, this oilhole vertically feeds to cylinder pressure.

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