Tool for measuring pulling-out force of sheet and rubber mat

Abstract

The utility model belongs to the technical field of heat exchangers, and discloses a tool for measuring the pulling-out force of a plate and a rubber mat, which comprises an upper blind plate and a lower blind plate which are matched up and down, the upper blind plate and the lower blind plate are connected through a fixing bolt, the upper blind plate is provided with a strip-shaped long groove, the center of the long groove is provided with a transverse groove, and the transverse groove is perpendicular to the center line of the long groove; a plate sheet is arranged between the upper blind plate and the lower blind plate, a rubber mat is connected to the plate sheet, and the rubber mat is located in the containing space of the long groove; a steel wire penetrates between the sheet and the rubber mat, and the part, extending out of the rubber mat, of the steel wire penetrates through the transverse groove; a tension bolt is fixedly arranged below the lower blind plate; the device is accurate in detection and high in efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat exchanger technical field relates to a tool, especially a kind of measuring sheet and rubber pad tensile force tool. BACKGROUND

[0002] The bonding of large plate heat exchanger sheet and rubber pad has been the most critical procedure in plate exchanger assembly process, which is related to the water pressure test qualification and rubber pad falling problem in later inspection process, and sheet leakage can cause the entire system or device to stop, so the bonding firmness of rubber pad and sheet is also crucial, and how firmness needs to be detected using certain method to verify the reliability of bonding process, and then optimized to achieve certain bonding reliability. INVENTION CONTENTS

[0003] The utility model solves the technical problems in the prior art, and provides a tool for measuring the tensile force of sheet and rubber pad, which is accurate and efficient.

[0004] The utility model solves the technical problems by the following technical scheme, a kind of measuring sheet and rubber pad tensile force tool, including the upper blind plate and lower blind plate of cooperation, the upper blind plate and lower blind plate are connected by fixed bolt, the upper blind plate is opened with the long slot of strip shape, the center of long slot is provided with transverse slot, and the center line of transverse slot is perpendicular to long slot;Plate is provided between the upper blind plate and lower blind plate, and rubber pad is connected on the plate, and rubber pad is in the accommodating space of long slot;Steel wire is arranged between plate and rubber pad, and the part of steel wire that extends out of rubber pad passes through transverse slot;Tension bolt is fixed below lower blind plate.

[0005] Preferably, the upper blind plate and the lower blind plate are provided with corresponding fixing holes, and the fixed bolt is arranged in the fixing hole, and the upper blind plate and the lower blind plate are gap fitted.

[0006] Preferably, the width of the rubber pad does not exceed the width of the long slot, and the width of the long slot is less than the width of the sheet;The length of the rubber pad does not exceed the length of the long slot, and the length of the long slot is less than the length of the sheet.

[0007] Preferably, the center of the rubber pad overlaps with the center of the long slot.

[0008] Preferably, the position of the steel wire arranged on the rubber pad is on the center line of the transverse slot.

[0009] Preferably, the sheet is strip-shaped, and the distance between the short sides of the sheet and the long slot width direction side edge is at least 10mm;The width difference between the long slot and the rubber pad is 1-2mm.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the structure of upper and lower blind plates is used to clamp and stabilize the plate with rubber pad. The rubber pad is located in the long groove opened on the upper blind plate. During the test, the plate can remain stable and will not interfere with the rubber pad. The steel wire slowly pulls up the rubber pad under the action of the tensile testing machine to measure the accurate pull-out force. This utility model has high testing accuracy and efficiency, and can accurately verify the bonding strength between the plate and the rubber pad. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a partial structural schematic diagram of the present invention;

[0013] Figure 3 This is a diagram showing the working state of this utility model;

[0014] Figure 4 This is a diagram showing the working state of this utility model;

[0015] Figure 5 This is a diagram showing the working state of this utility model;

[0016] Figure 6 This is a diagram showing the working state of this utility model.

[0017] The components include: upper blind flange 1, fixing hole 2, fixing bolt 3, steel wire 4, long groove 5, rubber pad 6, horizontal groove 7, plate 8, lower blind flange 9, and tension bolt 10. Detailed Implementation

[0018] A fixture for measuring the pull-out force between a plate and a rubber pad, such as Figures 1-6 As shown, the device includes an upper blind plate 1 and a lower blind plate 9 that fit together. The upper blind plate 1 and the lower blind plate 9 are connected by fixing bolts 3. The upper blind plate 1 has a long groove 5, and a horizontal groove 7 is formed at the center of the long groove 5. The horizontal groove 7 is perpendicular to the center line of the long groove 5. A plate 8 is provided between the upper blind plate 1 and the lower blind plate 9. A rubber pad 6 is connected to the plate 8 and is located in the receiving space of the long groove 5. A steel wire 4 is passed between the plate 8 and the rubber pad 6. The part of the steel wire 4 that extends out of the rubber pad 6 passes through the horizontal groove 7. A tension bolt 10 is fixed to the bottom of the lower blind plate 9 for connecting it to the lower worktable of the tension testing machine.

[0019] The upper blind plate 1 and the lower blind plate 9 are provided with corresponding fixing holes 2, and the fixing bolt 3 is arranged in the fixing hole 2, and the upper blind plate 1 and the lower blind plate 9 are gap matched; the width of the rubber pad 6 does not exceed the width of the long groove 5, and the width of the long groove 5 is less than the width of the plate piece 8; the length of the rubber pad 6 does not exceed the length of the long groove 5, and the length of the long groove 5 is less than the length of the plate piece 8; the center of the rubber pad 6 overlaps with the center of the long groove 5; the position of the steel wire 4 arranged on the rubber pad 6 is on the center line of the transverse groove 7; the plate piece 8 is long strip-shaped, and the distance between the short sides of the plate piece 8 and the width direction sides of the long groove 5 is at least 10 mm; the width difference between the long groove 5 and the rubber pad 6 is 1-2 mm.

[0020] First, a long groove 5 is processed in the middle of the upper blind plate 1, and the width of the long groove 5 depends on the width of the rubber pad 6, which is 1-2 mm wider than the width of the rubber pad 6, then the plate piece 8 is cut into strips, and the rubber pad 6 at the corresponding position is cut to be smaller than the length of the plate piece 8, the width of the long groove 5 is at least 10 mm, according to the bonding process, the cut plate piece 8 and the rubber pad 6 are bonded, dried and firmly bonded, then the steel wire 4 is passed through the rubber pad 6, then the plate piece 8 with the rubber pad 6 is fixed on the lower blind plate 9, the fixing bolt 3 is passed through the fixing hole 2 to fix the upper blind plate 1 and the lower blind plate 9 together and clamp the plate piece 8 in the middle, at this time, the rubber pad 6 is in the long groove 5 of the upper blind plate 1, and the lower end of the lower blind plate 9 is welded with a tension bolt 10 to be fixed with the lower workbench of the tension machine, then the steel wire 4 is fixed on the upper end of the tension machine, and the tension machine is started to measure the pull-off force, and the force curve measured by the tension machine during the pull-off process is the size of the pull-off force.

[0021] The plate change is crucial in some working conditions, and the plate change leakage may cause the entire system or device to stop, through the test of the pull-off force, the bonding firmness of the plate piece and the rubber pad can be verified, the more firmly bonded, the longer the user uses in the later period, which can also save the maintenance time and improve the maintenance efficiency, so as to improve the production benefit.

Claims

1. A fixture for measuring the pull-out force between a plate and a rubber pad, characterized in that: It includes an upper blind plate and a lower blind plate that fit together. The upper and lower blind plates are connected by fixing bolts. The upper blind plate has a long, narrow groove with a transverse groove at its center, which is perpendicular to the center line of the long groove. A plate is provided between the upper and lower blind plates, and a rubber pad is connected to the plate. The rubber pad is located within the receiving space of the long groove. A steel wire is threaded between the plate and the rubber pad, with the part of the steel wire extending out of the rubber pad passing through the transverse groove. A tension bolt is fixed to the bottom of the lower blind plate.

2. The fixture for measuring the pull-out force between the plate and the rubber pad according to claim 1, characterized in that: The upper and lower blind plates are provided with corresponding fixing holes, and fixing bolts are inserted into the fixing holes. The upper and lower blind plates are fitted with clearance.

3. The fixture for measuring the pull-out force between the plate and the rubber pad according to claim 2, characterized in that: The width of the rubber pad does not exceed the width of the long groove, and the width of the long groove is less than the width of the plate; the length of the rubber pad does not exceed the length of the long groove, and the length of the long groove is less than the length of the plate.

4. The fixture for measuring the pull-out force between the plate and the rubber pad according to claim 3, characterized in that: The center of the rubber pad overlaps with the center of the long groove.

5. The fixture for measuring the pull-out force between the plate and the rubber pad according to claim 4, characterized in that: The steel wire is threaded through the rubber pad at the center line of the transverse groove.

6. The fixture for measuring the pull-out force between the plate and the rubber pad according to claim 5, characterized in that: The plate is long and narrow, with the short side of the plate extending at least 10mm beyond the side of the long groove in the width direction; the difference between the width of the long groove and the width of the rubber pad is 1-2mm.

Images