CN219597884U - Tube expander for plate heat exchanger - Google Patents

Abstract

The utility model discloses a tube expander for a plate heat exchanger, which comprises a base, wherein movable frames are arranged on two sides of the top of the base, side plates are fixedly arranged on two sides of the outer wall of the base, first air cylinders are fixedly arranged at the positions, close to the top, of one side of each side plate, the two first air cylinders are symmetrically arranged, and a first piston rod is fixedly connected with the first air cylinders through the output end of one side of each first air cylinder. This a tube expander for plate heat exchanger, through the mutually supporting of movable frame, first cylinder, motor, lead screw, internal thread piece and fly leaf, two movable frames of first cylinder drive can carry out lateral shifting simultaneously, rotate through motor drive lead screw to can drive four fly leaves of both sides simultaneously and carry out longitudinal movement, thereby make four tube expanding mechanism can adjust to the position corresponding with four angular aperture, the flexibility is stronger, is convenient for process plate heat exchanger of different specifications.

Description

Tube expander for plate heat exchanger

Technical Field

The utility model relates to the technical field of tube expanding machines, in particular to a tube expanding machine for a plate heat exchanger.

Background

The tube expander is a special hydraulic expansion joint device for the expansion joint of tubes and tube plates in the manufacture of heat exchangers, condensers, high-pressure heaters and other devices, and has the advantages of low manufacturing cost, light labor intensity, short manufacturing period, uniform and reliable expansion joint quality and the like by using a hydraulic expansion joint technology.

The patent number (CN 217665907U) of the patent refers to a tube expander for a plate heat exchanger, the tube expander is provided with four groups of tube expander units corresponding to angle holes, the traditional single group of tube expander is replaced, the expansion connection of workpieces can be completed by one-time pressing, the processing efficiency is effectively improved, the expansion connection of the workpieces can be completed by one-time pressing, but the tube expander cannot be adjusted according to the positions of the angle holes when tube expander operation is carried out on plate heat exchangers with different sizes, so that the practicability of the tube expander is reduced, the use is inconvenient, and the production efficiency is reduced.

Disclosure of Invention

The utility model aims to provide a tube expander for a plate heat exchanger, which aims to solve the problems that in the prior art, when tube expansion operation is carried out on plate heat exchangers with different sizes, the tube expander cannot be respectively adjusted according to the positions of angular holes, so that the practicability of the tube expander is reduced, the use is inconvenient, and the production efficiency is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tube expander for plate heat exchanger, includes the base, the both sides at base top all are provided with movable frame, the both sides of base outer wall all fixed mounting has the curb plate, and the bottom of four internal thread pieces that both sides set up is fixed mounting near top position all has first cylinder, and two first cylinders are the symmetry setting, first cylinder is through the output fixedly connected with first piston rod of its one side, and the equal fixed mounting near top position of two opposite sides of movable frame rear surface has the motor, the motor is through the output fixedly connected with main shaft of its front surface, and the front end of main shaft runs through to movable frame's inside and fixedly connected with lead screw, and the bottom of two lead screw surfaces is fixed connection movable plate near front end position all, and the bottom of four internal thread pieces that both sides set up is fixed connection, and the equal fixed mounting in one side that both sides set up is relative at four movable plate tops has the second cylinder, the second cylinder is through the output fixedly connected with second piston rod of its bottom, and the bottom of second piston rod runs through to the outside of movable plate and fixed mounting tube expanding mechanism.

Compared with the prior art, the utility model has the beneficial effects that:

this an expand tube machine for plate heat exchanger, through the mutually supporting of movable frame, first cylinder, the motor, the lead screw, internal screw thread piece and fly leaf, two movable frames of first cylinder drive can carry out lateral shifting simultaneously, rotate through motor drive lead screw, thereby can drive four fly leaves of both sides simultaneously and carry out longitudinal movement, thereby make four expand tube mechanism can adjust to the position corresponding with four angle holes, the flexibility is stronger, be convenient for process the plate heat exchanger of different specifications, convenient to use, the work efficiency of expand tube machine has been improved, the user's demand of using has been satisfied.

Drawings

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

FIG. 2 is a rear elevational view of the structure of the present utility model;

FIG. 3 is a left side view of the structure of the movable plate of the present utility model;

fig. 4 is a structural perspective view of the movable frame of the present utility model.

In the figure: 1. a base; 2. a movable frame; 3. a side plate; 4. a first cylinder; 5. a chute; 6. a slide block; 7. a motor; 8. a screw rod; 9. an internal thread block; 10. a movable plate; 11. a guide rod; 12. a guide sleeve; 13. a second cylinder; 14. a tube expanding mechanism; 15. a riser; 16. a cross plate; 17. a clamping plate; 18. and adjusting the screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a tube expander for plate heat exchanger, two first piston rod opposite one end runs through respectively to the outside of two curb plates 3 and respectively with the center fixed connection of two movable frame 2 opposite sides, drive movable frame 2 through first cylinder 4 and remove.

The sliding grooves 5 are formed in the positions, close to the two sides, of the top of the base 1, the sliding blocks 6 are fixedly mounted in the centers of the bottoms of the two movable frames 2, the bottoms of the two sliding blocks 6 penetrate through the two sliding grooves 5 respectively and are in sliding connection with the inner walls of the sliding grooves 5, and therefore the movable frames 2 can be stabilized in moving.

The two internal thread blocks 9 are respectively in threaded connection with the front thread teeth and the back thread teeth which are respectively arranged at the front end and the back end of the surface of the screw rod 8 through the internally arranged positive thread groove and the back thread groove, and the two internal thread blocks 9 can move relatively or reversely along with the rotation of the screw rod 8.

Two guide rods 11 are fixedly installed at the positions, close to the top, of one side of the inner rear surface of the two movable frames 2 respectively, guide sleeves 12 are slidably connected at the positions, close to the front ends, of the surfaces of the four guide rods 11 arranged on two sides, of the four guide sleeves 12 respectively and fixedly connected with the bottoms of the four movable plates 10, limiting blocks are fixedly installed at the front ends of the four guide rods 11 respectively, and the movable plates 10 can be stably guided and limited in moving.

The rear end fixed mounting in the center of base 1 top has riser 15, and the top fixed mounting of riser 15 front surface has diaphragm 16, and the center threaded connection at diaphragm 16 top has adjusting screw 18, and the bottom of adjusting screw 18 runs through to the outside of diaphragm 16 and fixed mounting has splint 17, and adjusting screw 18's top fixed mounting has the regulation handle, makes adjusting screw 18 drive splint 17 downwardly moving and fixes plate heat exchanger's top through rotating the handle.

The bottom of splint 17 is provided with the plate heat exchanger, and the both sides of plate heat exchanger bottom respectively with the interior top contact of two movable frame 2, the bottom that corresponds four expansion mechanism 14 respectively at the top of plate heat exchanger all has seted up the angle hole, the movable frame 2 of both sides can support the both sides of plate heat exchanger bottom.

Working principle: during operation, the two movable frames 2 are pushed to move back to back or relatively by controlling the two first cylinders 4, the bottom of the tube expansion mechanism 14 is vertical to the corner holes on the plate heat exchanger, then two ends of the bottom of the plate heat exchanger are respectively placed on the two movable frames 2, the clamping plates 17 at the bottom are pushed by rotating the adjusting screw 18 to fix the plate heat exchanger, then the screw rod 8 is respectively controlled to drive the two movable plates 10 on the surface to move relatively or back to back simultaneously by controlling the motor 7 until the two tube expansion mechanisms 14 at the lower ends of the movable plates 10 are adjusted to positions corresponding to the two corner holes on one side of the plate heat exchanger, and after adjustment, the second cylinders 13 are controlled to drive the tube expansion mechanism 14 to move downwards and process the corner holes, so that the operation is convenient.

To sum up: this a tube expander for plate heat exchanger, through the mutually supporting of movable frame 2, first cylinder 4, motor 7, lead screw 8, internal thread piece 9 and fly leaf 10, two movable frames 2 of first cylinder 4 drive can carry out lateral shifting simultaneously, drive lead screw 8 through motor 7 and rotate, thereby can drive four fly leaves 10 of both sides simultaneously and carry out longitudinal movement, thereby make four tube expanding mechanism 14 can adjust to the position corresponding with four angular aperture, the flexibility is stronger, be convenient for process the plate heat exchanger of different specifications, convenient to use, the work efficiency of tube expander has been improved, the user demand of user has been satisfied.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components appearing in the document are all connected with an external main controller and 220V mains supply, the main controller can be a servo motor, a contact sensor, a processor, an alarm module, a driving module and other conventional known equipment which control, standard parts used in the document can be purchased from the market, the specific connection modes of the parts are all connected by adopting conventional means such as mature bolts, rivets and welding in the prior art, the mechanical parts and the equipment are all of the types which are conventional in the prior art, and the circuit connection is the conventional connection mode in the prior art, so that specific description is not made.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Tube expander for plate heat exchanger, including base (1), its characterized in that: the utility model discloses a motor, including base (1), motor, screw rod, motor (7), motor, screw rod (8), movable frame (2), piston rod, movable frame (10) and outer tube (14) fixed mounting, the both sides at base (1) top all are provided with movable frame (2), the both sides at base (1) outer wall all fixed mounting have curb plate (3), and the equal fixed mounting in top position of two curb plate (3) back to one side all has first cylinder (4), and two first cylinder (4) are the symmetry setting, the output fixedly connected with first piston rod of first cylinder (4) through its one side, and the equal fixed mounting in top position of two movable frame (2) rear surface opposite sides has motor (7), the output fixedly connected with main shaft of motor (7) through its front surface, the front end of main shaft runs through to the inside of movable frame (2) and fixedly connected with lead screw (8), and the front end position and the rear end position of being close to two lead screw (8) on surface all are provided with internal thread piece (9), the bottom of four internal thread piece (9) that both sides set up is fixed connection with movable plate (10), the equal fixed mounting in one side of four movable plate (10) top opposite sides that the both sides set up.

2. A tube expander for a plate heat exchanger according to claim 1, wherein: one ends of the two first piston rods, which are opposite, respectively penetrate through the outsides of the two side plates (3) and are respectively fixedly connected with the centers of the opposite sides of the two movable frames (2).

3. A tube expander for a plate heat exchanger according to claim 1, wherein: sliding grooves (5) are formed in positions, close to two sides, of the top of the base (1), sliding blocks (6) are fixedly mounted at the centers of the bottoms of the two movable frames (2), and the bottoms of the two sliding blocks (6) penetrate through the two sliding grooves (5) and are in sliding connection with the inner walls of the sliding grooves (5).

4. A tube expander for a plate heat exchanger according to claim 1, wherein: the two internal thread blocks (9) are respectively in threaded connection with the front thread teeth and the back thread teeth which are respectively arranged at the front end and the back end of the surface of the screw rod (8) through the internal positive thread groove and the internal back thread groove.

5. A tube expander for a plate heat exchanger according to claim 1, wherein: two guide rods (11) are fixedly installed at the positions, close to the top, of one side of the inner rear surface of each movable frame (2), of the surfaces of the four guide rods (11) arranged on two sides, guide sleeves (12) are slidably connected at the positions, close to the front ends, of the surfaces of the four guide rods (11), the tops of the four guide sleeves (12) are fixedly connected with the bottoms of the four movable plates (10) respectively, and limiting blocks are fixedly installed at the front ends of the four guide rods (11).

6. A tube expander for a plate heat exchanger according to claim 1, wherein: the novel lifting device is characterized in that a vertical plate (15) is fixedly arranged at the rear end of the center of the top of the base (1), a transverse plate (16) is fixedly arranged at the top of the front surface of the vertical plate (15), an adjusting screw (18) is connected with the center thread of the top of the transverse plate (16), the bottom of the adjusting screw (18) penetrates through the outside of the transverse plate (16) and is fixedly provided with a clamping plate (17), and an adjusting handle is fixedly arranged at the top of the adjusting screw (18).

7. A tube expander for a plate heat exchanger as claimed in claim 6, wherein: the bottom of splint (17) is provided with plate heat exchanger, and the both sides of plate heat exchanger bottom respectively with the interior top contact of two movable frame (2), the bottom that corresponds four expansion tube mechanism (14) respectively at plate heat exchanger's top has all seted up the angle hole.