Temperature control box for rubber test

Abstract

The utility model is suitable for the technical field of rubber testing, and provides a temperature control box for rubber testing, which comprises a box body and a heating pipe fixedly arranged in the box body and used for heating rubber, the temperature and humidity sensor is fixedly arranged in the box body and is used for monitoring the temperature and the humidity in the box body; the rectangular rods are rotationally installed on the two sides of the inner wall of the box body correspondingly, and cylinders are arranged on one set of rectangular rods in a sliding and sleeving mode; the clamping plates are fixedly mounted at one ends of the cylinders respectively and are used for clamping and fixing rubber; the driving mechanism is arranged on the box body and is used for synchronously driving one group of rectangular rods to rotate; and the humidifying mechanism is arranged on the box body and is used for humidifying the interior of the box body and carrying out a hygrothermal aging test on the rubber. According to the temperature control box for rubber testing, samples are uniformly heated through the rotary clamping mechanism, and the problem that local temperature is not uniform due to a traditional fixing clamp is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rubber testing technical field especially relates to a rubber test temperature control box. BACKGROUND

[0002] The rubber test temperature control box is a professional equipment for simulating different temperature environments to test the performance of rubber materials (such as heat resistance, cold resistance, elasticity, hardness, aging, etc.).

[0003] At present, most of the rubber test temperature control boxes adopt fixed clamps, and the fixed clamps cannot rotate the rubber during the operation of the temperature control box, which may easily cause uneven local temperature distribution of the sample and affect the reliability of the test data. UTILITY MODEL CONTENTS

[0004] The utility model provides a rubber test temperature control box, aims at solving the problem of the traditional fixed clamp that cannot rotate the sample during operation, which may easily cause uneven local temperature and affect the test reliability.

[0005] To solve the above problems, the utility model is realized in this way, a rubber test temperature control box, comprising: a box body and a heating pipe fixedly installed in the box body for heating rubber; a temperature and humidity sensor fixedly installed in the box body for monitoring the temperature and humidity in the box; a rectangular rod rotatably installed on the two sides of the inner wall of the box body, a cylinder is slidably sleeved on each of the rectangular rods; a clamping plate fixedly installed at one end of each of the cylinders for clamping and fixing the rubber; a driving mechanism provided on the box body for synchronously driving the rotation of the rectangular rods; and a humidifying mechanism provided on the box body for humidifying the box and conducting a wet heat aging test on the rubber.

[0006] Preferably, the driving mechanism comprises: a rotating shaft rotatably installed in the box body; a plurality of sprockets fixedly sleeved on the rotating shaft and the rectangular rods; two first chains sleeved on the sprockets; and a motor provided on one side of the box body for driving the rotation of the rectangular rods, the output shaft of the motor being fixedly connected to one end of any of the rectangular rods.

[0007] Preferably, a bidirectional screw is rotatably installed in the box body for driving a pair of clamping plates to clamp the rubber, two sliding blocks are sleeved on the bidirectional screw, a support plate is fixedly installed on each of the sliding blocks, and the two support plates are rotatably connected to the two cylinders, respectively.

[0008] Preferably, a protective cover is fixedly installed on one side of the box body, two connecting gears are rotatably installed in the protective cover, the rotating shaft of any of the connecting gears is fixedly connected to one end of the bidirectional screw, and a handle is fixedly installed on the rotating shaft of the other connecting gear.

[0009] Preferably, a connecting box is fixedly installed in the box body, a round rod is rotatably installed on one side of the connecting box, a fan blade for uniformly distributing hot air is rotatably installed on the bottom of the connecting box, a differential cone wheel is fixedly installed on the rotating shaft of the fan blade and one end of the round rod, the two differential cone wheels are engaged, a differential wheel is fixedly sleeved on the rotating shaft of the rectangular rod and one end of the round rod, and a second chain is sleeved on the two differential wheels.

[0010] Preferably, the humidifying mechanism comprises a water tank fixedly installed at the bottom of the box body for storing water, a nozzle fixedly installed in the box body and located above the clamping plate, and a water pump installed in the water tank for supplying water to the nozzle, wherein the water outlet end of the water pump is fixedly connected with the nozzle.

[0011] Preferably, a guide rod is fixedly installed in the water tank, a floating plate is sleeved on the guide rod, an installation groove is formed in the bottom of the inner wall of the water tank, a switch device is arranged in the installation groove, a touch rod is fixedly installed on one side of the floating plate, and the touch rod is matched with the switch device.

[0012] Preferably, a protective cover for waterproofing the switch device is fixedly installed in the installation groove, and a waterproof film is installed in the top opening of the protective cover.

[0013] Compared with the related art, the temperature control box for rubber testing has the following beneficial effects:

[0014] Compared with the prior art, the temperature control box for rubber testing drives the rectangular rod to rotate through the driving mechanism, so that the clamped rubber is rotated, the problem that the reliability of test data is affected due to uneven local temperature distribution of the sample is effectively avoided, the accuracy and reliability of rubber performance testing (such as heat resistance, elasticity, hardness, aging, etc.) are significantly improved, and a more reliable basis is provided for rubber material performance evaluation.

[0015] In summary, the temperature control box for rubber testing uniformly heats the sample through the rotary clamping mechanism (rectangular rod, cylinder and clamping plate combination), and effectively solves the problem of uneven local temperature caused by the traditional fixed clamp. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a front view of the temperature control box for rubber testing provided by the utility model;

[0017] Figure 2 is a top view of the rectangular rod, the chain wheel, the first chain and the rotating rod provided by the utility model

[0018] Figure 3 is an assembly view of the rectangular rod and the cylinder provided by the utility model;

[0019] Figure 4 As shown in part A of the enlarged structural schematic view in the figure; Figure 1 As shown in part A of the enlarged structural schematic view in the figure;

[0020] Figure 5 As shown in part A of the enlarged structural schematic view in the figure; Figure 1 As shown in part A of the enlarged structural schematic view in the figure.

[0021] Fig. 1 is a box; 2 is a heating pipe; 3 is a temperature and humidity sensor; 4 is a rectangular rod; 5 is a cylinder; 6 is a clamping plate; 7 is a rotating rod; 8 is a chain wheel; 9 is a first chain; 10 is a motor; 11 is a bidirectional screw rod; 12 is a sliding block; 13 is a support plate; 14 is a protective cover; 15 is a connecting box; 16 is a round rod; 17 is a fan blade; 18 is a differential cone wheel; 19 is a differential wheel; 20 is a second chain; 21 is a connecting gear; 22 is a handle; 23 is a water tank; 24 is a nozzle; 25 is a water pump; 26 is a guide rod; 27 is a floating plate; 28 is a switch device; 29 is a touch rod; 30 is a protective cover; 31 is a waterproof film. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the present application will be described with reference to the drawings in which is shown by way of illustration various embodiments of the application. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of," and variations thereof. The use of the terms "first," "second," and the like does not imply a particular order but is used for naming purposes only. The use of the terms "inner," "outer," "left," "right," "up," "down," "top," "bottom," "front," "back," and the like, is intended to be relative and not absolute. The use of the terms "coupled," "connected," and the like, means either an indirect or direct electrical or mechanical connection. The use of the term "plurality" means two or more.

[0023] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment.

[0024] The utility model discloses an example provides a kind of temperature control box for rubber test, as Figures 1-5As shown, the temperature control box for rubber test comprises a box body 1, a heating pipe 2 fixedly installed in the box body 1 for heating rubber, a temperature and humidity sensor 3 fixedly installed in the box body 1 for monitoring the temperature and humidity in the box body 1, a rectangular rod 4 rotatably installed on the inner wall of the box body 1, a cylinder 5 slidably sleeved on the rectangular rod 4, a clamping plate 6 fixedly installed at one end of the cylinder 5 for clamping and fixing rubber, a driving mechanism arranged on the box body 1 for synchronously driving the rotation of the rectangular rod 4, and a humidifying mechanism arranged on the box body 1 for humidifying the box body 1 and carrying out a wet heat aging test on the rubber.

[0025] In the embodiment, during operation, the driving mechanism synchronously drives the rotation of the rectangular rod 4, the rotary motion of the rectangular rod 4 is transmitted to the clamping plate 6 through the cylinder 5, and then the rubber is rotated, at the same time, the temperature and humidity sensor 3 transmits the temperature and humidity data in the box body 1 to the controller of the box body 1, the temperature and humidity sensor 3 is of DHT11 type, the controller realizes the temperature control function of the box body 1 in combination with software, and the humidifying mechanism is responsible for humidifying the box body 1 to carry out a wet heat aging test, the rotation of the rectangular rod 4 is driven by the driving mechanism, and then the clamped rubber is rotated, thereby effectively avoiding the problem that the reliability of test data is affected due to uneven local temperature distribution of the sample, and the accuracy and reliability of the rubber performance test (such as heat resistance, elasticity, hardness, aging, etc.) are significantly improved, and a more reliable basis is provided for the performance evaluation of rubber materials.

[0026] In the further preferred embodiment of the utility model, the driving mechanism comprises: a rotating rod 7 rotatably installed in the box body 1, a plurality of sprockets 8 fixedly sleeved on the rotating rod 7 and the rectangular rod 4, two first chains 9 sleeved on the sprockets 8, and a motor 10 arranged on one side of the box body 1 for driving the rotation of the rectangular rod 4, wherein the output shaft of the motor 10 is fixedly connected with one end of the rectangular rod 4.

[0027] In the embodiment, when the motor 10 is started, the output shaft drives the rectangular rod 4 connected therewith to rotate, the sprocket 8 on the rectangular rod 4 rotates, the sprocket 8 on the rotating rod 7 is driven to rotate through the transmission of the first chain 9, the sprocket 8 on the rotating rod 7 is driven to rotate through the other first chain 9, and then the synchronous rotation of the rectangular rod 4 is realized. When the rectangular rod 4 rotates, the clamping plate 6 and the rubber are driven to rotate through the cylinder 5, the temperature in the box body 1 is fed back to the controller by the temperature and humidity sensor 3, the controller realizes temperature control in combination with software, the humidifying mechanism carries out a wet heat aging test, and the synchronous driving of the rectangular rod 4 is realized through the U-shaped transmission structure composed of the rotating rod 7, the sprocket 8 and the first chain 9, which ensures that the rubber clamped on the clamping plate 6 can rotate stably and synchronously, and effectively improves the temperature distribution uniformity of the rubber sample in the temperature control box.

[0028] In the further preferred embodiment of the utility model, the box 1 is rotatably installed with a double screw 11 for driving a group of clamping plates 6 to clamp rubber, the double screw 11 is sleeved with two sliding blocks 12, the two sliding blocks 12 are fixedly installed with a support plate 13, and the two support plates 13 are rotatably connected with the two cylinders 5 respectively.

[0029] In the embodiment, when rubber needs to be clamped, the handle 22 on the double screw 11 is rotated to drive the double screw 11 to rotate, the rotation of the double screw 11 synchronously moves the two sliding blocks 12, further drives the support plate 13 and the cylinder 5 on the support plate 13 to slide along the rectangular rod 4, and the two cylinders 5 drive the clamping plates 6 thereon to approach each other, thereby realizing the clamping of rubber. The rotation of the double screw 11 synchronously moves the two sliding blocks 12, further realizes the sliding of the cylinder 5 along the rectangular rod 4, and enables the clamping plate 6 to accurately and stably clamp rubber, thereby ensuring the position of rubber fixed during the test, avoiding the deviation of test data caused by unstable clamping, and improving the accuracy and stability of the test.

[0030] In the further preferred embodiment of the utility model, the box 1 is fixedly installed with a protective cover 14 on one side, the protective cover 14 is rotatably installed with two connecting gears 21, the rotating shaft of any one of the connecting gears 21 is fixedly connected with one end of the double screw 11, and the rotating shaft of the other connecting gear 21 is fixedly installed with a handle 22.

[0031] In the embodiment, when rubber needs to be clamped, the handle 22 is rotated to drive the connecting gear 21 connected therewith to rotate, since the two connecting gears 21 are meshed and transmitted, the other connecting gear 21 is synchronously rotated, further drives the double screw 11 fixedly connected with the rotating shaft of the connecting gear 21 to rotate. The rotation of the double screw 11 synchronously moves the two sliding blocks 12 sleeved thereon along the double screw 11, the sliding block 12 drives the support plate 13 and the cylinder 5 rotatably connected with the support plate 13 to slide along the rectangular rod 4, the clamping plate 6 at one end of the cylinder 5 is moved, and the clamping operation of rubber is realized.

[0032] In the further preferred embodiment of the utility model, the box 1 is fixedly installed with a connecting box 15, the connecting box 15 is rotatably installed with a round rod 16 on one side, the connecting box 15 is rotatably installed with a fan blade 17 for uniformly distributing hot air at the bottom, the rotating shaft of the fan blade 17 and one end of the round rod 16 are both fixedly installed with a differential cone wheel 18, the two differential cone wheels 18 are meshed, the rotating shaft of the rectangular rod 4 and one end of the round rod 16 are both fixedly sleeved with a differential wheel 19, and the two differential wheels 19 are sleeved with a second chain 20.

[0033] In the embodiment, when the driving mechanism drives the rectangular rod 4 to rotate, the differential gear 19 on the rectangular rod 4 rotates, and drives the differential gear 19 on the circular rod 16 to rotate through the transmission of the second chain 20, and then drives the circular rod 16 to rotate. When the circular rod 16 rotates, the differential bevel gear 18 on the circular rod 16 rotates, and drives the fan blade 17 rotating shaft to rotate through the meshing transmission with the differential bevel gear 18 on the fan blade 17 rotating shaft, so that the fan blade 17 rotates. Due to the different tooth numbers of the two differential bevel gears 18 and the size difference of the two differential gears 19, the rotating speed of the fan blade 17 is different from the rotating speed of the rectangular rod 4 (and the clamping plate 6 and the rubber), and the fan blade 17 rotates at a higher speed. At the same time, the heating pipe 2 in the box body 1 heats the air, and the fan blade 17 rotates at a high speed to uniformly blow the heated hot air in the box body 1. Through the ingenious arrangement of the differential gear 19, the second chain 20 and the differential bevel gear 18, the differential rotation of the fan blade 17 and the rectangular rod 4 (and the clamping plate 6 and the rubber) is realized, and the fan blade 17 can rotate at a high speed to quickly and uniformly blow the hot air generated by the heating pipe 2 to all corners of the box body 1, so that the local temperature in the box body 1 is effectively avoided to be too high or too low.

[0034] In the further preferred embodiment of the utility model, the humidifying mechanism comprises: a water tank 23 fixedly installed at the bottom of the box body 1 for storing water; a nozzle 24 fixedly installed in the box body 1 and located above the clamping plate 6; and a water pump 25 installed in the water tank 23 for supplying water to the nozzle 24, wherein the water outlet end of the water pump 25 is fixedly connected with the nozzle 24.

[0035] In the embodiment, when the humid heat aging test is needed, the water pump 25 is started, the water in the water tank 23 is pumped out and delivered to the nozzle 24 through the water outlet end, and the nozzle 24 sprays the water in the form of mist or fine stream into the box body 1 to increase the humidity in the box body 1. Through the arrangement of the humidifying mechanism, the water in the box body 1 can be conveniently supplemented, and the humidity in the box body 1 can be accurately adjusted. Combined with the temperature control function of the box body 1, the complex temperature and humidity environment that the rubber material may encounter in actual use can be simulated, so that the aging performance of the rubber material under the humid heat condition can be more comprehensively and accurately evaluated.

[0036] In the further preferred embodiment of the utility model, a guide rod 26 is fixedly installed in the water tank 23, a floating plate 27 is sleeved on the guide rod 26, an installation groove is formed in the inner wall bottom of the water tank 23, a switch device 28 is arranged in the installation groove, a touch rod 29 is fixedly installed on one side of the floating plate 27, and the touch rod 29 is matched with the switch device 28.

[0037] In the embodiment, when the water level drops to a certain extent, the touch rod 29 contacts the switch device 28, the switch device 28 triggers and transmits a signal to the controller, after the controller receives the signal, the controller can display prompt information through the display screen, issue an alarm sound or send a notification to an external terminal (such as a mobile phone, a computer, etc.) to remind the operator to add water to the water tank 23 in time, so as to ensure that the humidifying mechanism can continue to work normally.

[0038] In the further preferred embodiment of the utility model, the waterproof protective cover 30 is fixedly installed in the mounting groove for waterproofing the switch device 28, and the waterproof film 31 is installed in the top opening of the protective cover 30.

[0039] In the embodiment, when the water tank 23 is filled with water, water vapor is generated during the operation of the device, or water splashes into the mounting groove area due to unexpected circumstances, the protective cover 30 can effectively block most of the water from directly contacting the switch device 28, and the waterproof film 31 further plays a waterproof and moisture-proof role, has hydrophobicity, can prevent water droplets and water vapor from entering the inside of the protective cover 30, and ensures that the switch device 28 is in a dry environment.

[0040] In summary, compared with the related art, the temperature control box disclosed in the embodiment can realize uniform heating of the sample through the rotary clamping mechanism (combination of the rectangular rod, the cylinder and the clamping plate), and effectively solve the problem of local temperature unevenness caused by the traditional fixed clamp.

[0041] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways.

[0042] The above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit the protection scope of the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete the features in the embodiments of the utility model according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the utility model, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A temperature control chamber for rubber testing, characterized in that, include: Box (1) and heating tube (2) fixedly installed inside the box (1) for heating rubber; A temperature and humidity sensor (3) is fixedly installed inside the box (1) to monitor the temperature and humidity inside the box (1); Rectangular rods (4) installed on both sides of the inner wall of the box (1) are rotated respectively, and a cylinder (5) is slidably sleeved on each of the rectangular rods (4). Clamping plates (6) are fixedly installed at one end of a set of cylinders (5) to clamp and fix the rubber. A drive mechanism is provided on the housing (1) for synchronously driving a set of rectangular rods (4) to rotate; A humidification mechanism is provided on the box (1) for humidifying the box (1) and conducting a wet heat aging test on the rubber.

2. The temperature control chamber for rubber testing as described in claim 1, characterized in that, The drive mechanism includes: Rotate the rotating rod (7) installed inside the box (1); Several sprockets (8) are respectively fixedly sleeved on the rotating rod (7) and a group of rectangular rods (4); Two first chains (9) respectively fitted on several of the aforementioned sprockets (8); A motor (10) is provided on one side of the housing (1) for driving the rectangular rod (4) to rotate, and the output shaft of the motor (10) is fixedly connected to one end of any of the rectangular rods (4).

3. The temperature control chamber for rubber testing as described in claim 2, characterized in that, The box (1) is rotatably installed with a bidirectional screw (11) for driving a set of clamping plates (6) to clamp the rubber. Two sliders (12) are sleeved on the bidirectional screw (11). Support plates (13) are fixedly installed on the two sliders (12). The two support plates (13) are rotatably connected to the two cylinders (5) respectively.

4. The temperature control chamber for rubber testing as described in claim 3, characterized in that, A protective cover (14) is fixedly installed on one side of the housing (1). Two connecting gears (21) are rotatably installed inside the protective cover (14). The shaft of any one of the connecting gears (21) is fixedly connected to one end of the bidirectional screw (11). A handle (22) is fixedly installed on the shaft of the other connecting gear (21).

5. The temperature control chamber for rubber testing as described in claim 2, characterized in that, A connecting box (15) is fixedly installed inside the housing (1). A round rod (16) is rotatably installed on one side of the connecting box (15). A fan blade (17) for evenly distributing hot air is rotatably installed at the bottom of the connecting box (15). A differential conical wheel (18) is fixedly installed on the shaft of the fan blade (17) and one end of the round rod (16). The two differential conical wheels (18) mesh with each other. A differential wheel (19) is fixedly sleeved on the shaft of the rectangular rod (4) and one end of the round rod (16). A second chain (20) is sleeved on the two differential wheels (19).

6. The temperature control chamber for rubber testing as described in claim 1, characterized in that, The humidification mechanism includes: A water tank (23) is fixedly installed at the bottom of the box (1) for storing water. A nozzle (24) is fixedly installed inside the housing (1) and located above the clamping plate (6); A water pump (25) is installed in the water tank (23) to supply water to the nozzle (24), and the drain end of the water pump (25) is fixedly connected to the nozzle (24).

7. The temperature control chamber for rubber testing as described in claim 6, characterized in that, A guide rod (26) is fixedly installed inside the water tank (23). A float plate (27) is sleeved on the guide rod (26). An installation groove is opened at the bottom of the inner wall of the water tank (23). A switch device (28) is installed in the installation groove. A contact rod (29) is fixedly installed on one side of the float plate (27). The contact rod (29) is compatible with the switch device (28).

8. The temperature control chamber for rubber testing as described in claim 7, characterized in that, A protective cover (30) for waterproofing the switchgear (28) is fixedly installed in the mounting slot, and a waterproof membrane (31) is installed in the top opening of the protective cover (30).

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