CN112255125B - A life test machine for rubber machinery accessories - Google Patents

A life test machine for rubber machinery accessories Download PDF

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CN112255125B
CN112255125B CN202010909704.6A CN202010909704A CN112255125B CN 112255125 B CN112255125 B CN 112255125B CN 202010909704 A CN202010909704 A CN 202010909704A CN 112255125 B CN112255125 B CN 112255125B
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column
clamping plate
lifting
push rod
motor
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CN112255125A (en
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何志才
贾文平
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Taizhou Tianjun Technology Co ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/04—Chucks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56—Investigating resistance to wear or abrasion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/001—Impulsive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0026—Combination of several types of applied forces

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • General Physics & Mathematics (AREA)
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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention belongs to the field of rubber mechanical matching parts, in particular to a service life testing machine for rubber mechanical matching parts, which aims at solving the problems that the service life testing machine for the existing rubber mechanical matching parts is mostly not suitable for different rubber mechanical matching parts, so that the use range is limited, the automation degree is low, and the work efficiency is low because of manual operation, the service life testing machine for the rubber mechanical matching parts comprises a base, wherein a supporting column is arranged at the top of the base, a friction strip is arranged on one side of the supporting column, a lifting hole is formed in one side of the supporting column, a lifting column is arranged in the lifting hole in a sliding mode, a lifting seat is connected to one side of the lifting column, a first push rod motor is fixedly arranged on the lifting seat, and a moving seat is welded on an output shaft of the first push rod motor.

Description

一种橡胶机械配套件寿命试验机A life test machine for rubber machinery accessories

技术领域technical field

本发明涉及橡胶机械配套件技术领域，尤其涉及一种橡胶机械配套件寿命试验机。The invention relates to the technical field of rubber machinery accessories, in particular to a life testing machine for rubber machinery accessories.

背景技术Background technique

目前，橡胶机械采用多种配套件，如普通软管、旋转接头、气缸、水缸、金属软管和电缆等，配套件的质量直接影响着橡胶机械的整机质量，因此，需要橡胶机械配套件寿命试验机用于对橡胶机械配套件的质量进行试验。At present, rubber machinery uses a variety of accessories, such as ordinary hoses, rotary joints, cylinders, water cylinders, metal hoses and cables, etc. The quality of the accessories directly affects the quality of the rubber machinery. Therefore, it is necessary to support the rubber machinery. The life test machine is used to test the quality of rubber mechanical accessories.

现有的橡胶机械配套件寿命试验机大多不能够适用于不同的橡胶机械配套件，导致使用范围有限，而且自动化程度低，大多需要人工操作，导致工作效率低，因此，我们提出了一种橡胶机械配套件寿命试验机用于解决上述问题。Most of the existing rubber machinery accessories life testing machines can not be applied to different rubber machinery accessories, resulting in a limited range of use, and a low degree of automation. Most of them require manual operation, resulting in low work efficiency. Therefore, we propose a rubber Mechanical accessories life testing machine is used to solve the above problems.

发明内容SUMMARY OF THE INVENTION

本发明的目的是为了解决现有技术中存在橡胶机械配套件寿命试验机大多不能够适用于不同的橡胶机械配套件，导致使用范围有限，而且自动化程度低，大多需要人工操作，导致工作效率低的缺点，而提出的一种橡胶机械配套件寿命试验机。The purpose of the present invention is to solve the problem that most of the life testing machines for rubber machinery accessories in the prior art cannot be applied to different rubber machinery accessories, resulting in a limited range of use, and a low degree of automation. Most of them require manual operation, resulting in low work efficiency. The shortcomings of the proposed rubber mechanical accessories life testing machine.

为了实现上述目的，本发明采用了如下技术方案：In order to achieve the above object, the present invention adopts the following technical solutions:

一种橡胶机械配套件寿命试验机，包括底座，所述底座的顶部设置有支撑柱，且支撑柱的一侧设置有摩擦条，所述支撑柱的一侧开设有升降孔，且升降孔内滑动安装有升降柱，所述升降柱的一侧连接有升降座，且升降座上固定安装有第一推杆电机，所述第一推杆电机的输出轴上焊接有移动座，且移动座的一侧设置有第一夹持板，所述第一夹持板的一侧固定安装有固定柱，且固定柱上滑动安装有伸缩柱，所述伸缩柱固定连接有第二夹持板，且第二夹持板远离第一夹持板的一侧固定安装有连接块，所述连接块上连接有连接柱，且连接柱连接有连接环，所述连接环内转动套设有螺杆，所述移动座上开设有螺纹孔，且螺杆螺纹安装于螺纹孔内；A life testing machine for rubber mechanical accessories, comprising a base, a support column is arranged on the top of the base, a friction strip is arranged on one side of the support column, a lifting hole is opened on one side of the support column, and the lifting hole is arranged in the lifting hole. A lifting column is slidably installed, one side of the lifting column is connected with a lifting seat, and a first push rod motor is fixedly installed on the lifting seat, and a movable seat is welded on the output shaft of the first push rod motor, and the movable seat is A first clamping plate is arranged on one side of the first clamping plate, a fixing column is fixedly installed on one side of the first clamping plate, and a telescopic column is slidably installed on the fixing column, and the telescopic column is fixedly connected with a second clamping plate, A connecting block is fixedly installed on the side of the second clamping plate away from the first clamping plate, the connecting block is connected with a connecting column, and the connecting column is connected with a connecting ring, and a screw is rotatably sleeved in the connecting ring, The movable seat is provided with a threaded hole, and the screw thread is installed in the threaded hole;

所述升降条的另一侧设置有齿条，且齿条啮合有齿轮，所述齿轮固定连接有电动机的输出轴，且电动机固定连接有电机座，所述电机座固定连接有第二推杆电机的输出轴，且第二推杆电机固定连接有支撑座，所述支撑座固定安装于底座上；The other side of the lifting bar is provided with a rack, and the rack is engaged with a gear, the gear is fixedly connected with the output shaft of the motor, and the motor is fixedly connected with a motor seat, and the motor seat is fixedly connected with a second push rod the output shaft of the motor, and the second push rod motor is fixedly connected with a support seat, and the support seat is fixedly installed on the base;

所述底座的顶部固定安装有固定座，且固定座上固定安装有冲击块。A fixing seat is fixedly installed on the top of the base, and an impact block is fixedly installed on the fixing seat.

优选的，所述第二推杆电机的输出轴上焊接有升降杆，且升降杆与电机座固定连接。Preferably, a lift rod is welded on the output shaft of the second push rod motor, and the lift rod is fixedly connected to the motor base.

优选的，所述第一夹持板和第二夹持板之间夹持有橡胶机械配套件，且橡胶机械配套件分别与摩擦条和冲击块相配合。Preferably, a rubber mechanical fitting is clamped between the first clamping plate and the second clamping plate, and the rubber mechanical fitting is matched with the friction strip and the impact block respectively.

优选的，所述升降座上开设有第一放置槽，且第一推杆电机固定安装于第一放置槽内。Preferably, a first placement slot is formed on the lift base, and the first push rod motor is fixedly installed in the first placement slot.

优选的，所述第一夹持板和第二夹持板均为弧形结构，且第一夹持板和第二夹持板相配合，用于夹持橡胶机械配套件。Preferably, the first clamping plate and the second clamping plate are both arc-shaped structures, and the first clamping plate and the second clamping plate are matched for clamping the rubber mechanical fittings.

优选的，所述固定柱上开设有伸缩孔，且伸缩柱滑动安装于伸缩孔内。Preferably, the fixing column is provided with a telescopic hole, and the telescopic column is slidably installed in the telescopic hole.

优选的，所述连接环的内侧壁上固定安装有轴承的外圈，且轴承的内圈固定套设于螺杆上。Preferably, the outer ring of the bearing is fixedly mounted on the inner side wall of the connecting ring, and the inner ring of the bearing is fixedly sleeved on the screw rod.

优选的，所述支撑座上开设有第二放置槽，且第二推杆电机固定安装于第二放置槽内。Preferably, the support base is provided with a second placement slot, and the second push rod motor is fixedly installed in the second placement slot.

与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:

1、第一夹持板、第二夹持板、连接块、连接柱、连接环、螺杆、螺纹孔、固定柱和伸缩柱，能够对橡胶机械配套件进行夹持，且能够适用于不同的橡胶机械配套件，从而方便对橡胶机械配套件进行试验；1. The first clamping plate, the second clamping plate, the connecting block, the connecting column, the connecting ring, the screw, the threaded hole, the fixed column and the telescopic column can clamp the rubber mechanical accessories, and can be applied to different Rubber machinery accessories, so as to facilitate the testing of rubber machinery accessories;

2、由于设置了升降孔、升降柱、齿条、电机座、电动机、齿轮，能够便于带动橡胶机械配套件上下移动，从而配合摩擦条对橡胶机械配套件进行摩擦寿命试验，同时配合冲击块对橡胶机械配套件进行冲击寿命试验；2. Due to the setting of lifting holes, lifting columns, racks, motor bases, motors, and gears, it is easy to drive the rubber mechanical accessories to move up and down, so as to cooperate with the friction bar to carry out the friction life test of the rubber mechanical accessories, and cooperate with the impact block. Impact life test for rubber machinery accessories;

3、由于设置了升降座、第一推杆电机，能够便于调节橡胶机械配套件与摩擦条的距离，从而调节摩擦力度；3. Due to the installation of the lift seat and the first push rod motor, it is easy to adjust the distance between the rubber mechanical accessory and the friction strip, thereby adjusting the friction force;

4、由于设置了升降杆、固定座、冲击块、支撑座、第二推杆电机，能够调节电动机的位置，从而便于调节试验范围。4. The position of the motor can be adjusted due to the arrangement of the lifting rod, the fixed seat, the impact block, the support seat, and the second push rod motor, thereby facilitating the adjustment of the test range.

本发明能够适用于不同的橡胶机械配套件，使用范围大，而且自动化程度高，提高了工作效率。The invention can be applied to different rubber machinery matching parts, has a wide range of use, and has a high degree of automation, thereby improving work efficiency.

附图说明Description of drawings

图1为本发明提出的一种橡胶机械配套件寿命试验机的正视结构示意图；Fig. 1 is the front structure schematic diagram of a kind of rubber mechanical accessory life testing machine proposed by the present invention;

图2为本发明提出的一种橡胶机械配套件寿命试验机的后视结构示意图；Fig. 2 is the rear view structure schematic diagram of a kind of rubber mechanical accessory life testing machine proposed by the present invention;

图3为本发明提出的一种橡胶机械配套件寿命试验机的图2中A部分放大结构示意图；Fig. 3 is the enlarged structural schematic diagram of part A in Fig. 2 of a rubber mechanical accessory life testing machine proposed by the present invention;

图4为本发明提出的一种橡胶机械配套件寿命试验机的移动座的连接结构示意图；4 is a schematic diagram of the connection structure of the movable seat of a rubber mechanical accessory life testing machine proposed by the present invention;

图5为本发明提出的一种橡胶机械配套件寿命试验机的图4中B部分放大结构示意图。FIG. 5 is an enlarged structural schematic diagram of part B in FIG. 4 of a rubber mechanical accessory life testing machine proposed by the present invention.

图中：1底座、2支撑柱、3摩擦条、4升降孔、5升降柱、6升降座、7第一推杆电机、8移动座、9第一夹持板、10第二夹持板、11连接块、12连接柱、13连接环、14螺杆、15螺纹孔、16固定柱、17伸缩柱、18齿条、19支撑座、20第二推杆电机、21电机座、22电动机、23齿轮、24升降杆、25固定座、26冲击块。In the picture: 1 base, 2 support column, 3 friction strip, 4 lifting hole, 5 lifting column, 6 lifting seat, 7 first push rod motor, 8 moving seat, 9 first clamping plate, 10 second clamping plate , 11 connecting block, 12 connecting column, 13 connecting ring, 14 screw, 15 threaded hole, 16 fixed column, 17 telescopic column, 18 rack, 19 support seat, 20 second push rod motor, 21 motor seat, 22 motor, 23 gears, 24 lift rods, 25 fixed seats, 26 impact blocks.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

参照图1-5，一种橡胶机械配套件寿命试验机，包括底座1，底座1的顶部设置有支撑柱2，且支撑柱2的一侧设置有摩擦条3，支撑柱2的一侧开设有升降孔4，且升降孔4内滑动安装有升降柱5，升降柱5的一侧连接有升降座6，且升降座6上固定安装有第一推杆电机7，第一推杆电机7的输出轴上焊接有移动座8，且移动座8的一侧设置有第一夹持板9，第一夹持板9的一侧固定安装有固定柱16，且固定柱16上滑动安装有伸缩柱17，伸缩柱17固定连接有第二夹持板10，且第二夹持板10远离第一夹持板9的一侧固定安装有连接块11，连接块11上连接有连接柱12，且连接柱12连接有连接环13，连接环13内转动套设有螺杆14，移动座8上开设有螺纹孔15，且螺杆14螺纹安装于螺纹孔15内；Referring to Figures 1-5, a rubber mechanical accessory life testing machine includes a base 1, a support column 2 is provided on the top of the base 1, and a friction strip 3 is provided on one side of the support column 2, and one side of the support column 2 is provided with There is a lifting hole 4, and a lifting column 5 is slidably installed in the lifting hole 4, one side of the lifting column 5 is connected with a lifting seat 6, and a first push rod motor 7 is fixedly installed on the lifting seat 6, and the first push rod motor 7 A movable seat 8 is welded on the output shaft of the movable seat 8, and one side of the movable seat 8 is provided with a first clamping plate 9, one side of the first clamping plate 9 is fixedly installed with a fixed column 16, and the fixed column 16 is slidably installed with The telescopic column 17 is fixedly connected with the second clamping plate 10 , and the side of the second clamping plate 10 away from the first clamping plate 9 is fixedly installed with a connecting block 11 , and the connecting block 11 is connected with the connecting column 12 , and the connecting post 12 is connected with a connecting ring 13, the connecting ring 13 is rotatably provided with a screw 14, the movable seat 8 is provided with a threaded hole 15, and the screw 14 is threadedly installed in the threaded hole 15;

升降条5的另一侧设置有齿条18，且齿条18啮合有齿轮23，齿轮23固定连接有电动机22的输出轴，且电动机22固定连接有电机座21，电机座21固定连接有第二推杆电机20的输出轴，且第二推杆电机20固定连接有支撑座19，支撑座19固定安装于底座1上；The other side of the lifting bar 5 is provided with a rack 18, and the rack 18 is engaged with a gear 23, the gear 23 is fixedly connected with the output shaft of the motor 22, and the motor 22 is fixedly connected with a motor base 21, and the motor base 21 is fixedly connected with a No. The output shaft of the second push rod motor 20, and the second push rod motor 20 is fixedly connected with a support base 19, and the support base 19 is fixedly installed on the base 1;

底座1的顶部固定安装有固定座25，且固定座25上固定安装有冲击块26。A fixing seat 25 is fixedly installed on the top of the base 1 , and an impact block 26 is fixedly installed on the fixing seat 25 .

本发明中，第二推杆电机20的输出轴上焊接有升降杆24，且升降杆24与电机座21固定连接。In the present invention, a lift rod 24 is welded on the output shaft of the second push rod motor 20 , and the lift rod 24 is fixedly connected with the motor base 21 .

本发明中，第一夹持板9和第二夹持板10之间夹持有橡胶机械配套件，且橡胶机械配套件分别与摩擦条3和冲击块26相配合。In the present invention, a rubber mechanical fitting is clamped between the first clamping plate 9 and the second clamping plate 10 , and the rubber mechanical fitting is matched with the friction strip 3 and the impact block 26 respectively.

本发明中，升降座6上开设有第一放置槽，且第一推杆电机7固定安装于第一放置槽内。In the present invention, the lift base 6 is provided with a first placement slot, and the first push rod motor 7 is fixedly installed in the first placement slot.

本发明中，第一夹持板9和第二夹持板10均为弧形结构，且第一夹持板9和第二夹持板10相配合，用于夹持橡胶机械配套件。In the present invention, the first clamping plate 9 and the second clamping plate 10 are both arc-shaped structures, and the first clamping plate 9 and the second clamping plate 10 cooperate to clamp the rubber mechanical fittings.

本发明中，固定柱16上开设有伸缩孔，且伸缩柱17滑动安装于伸缩孔内。In the present invention, the fixed column 16 is provided with a telescopic hole, and the telescopic column 17 is slidably installed in the telescopic hole.

本发明中，连接环13的内侧壁上固定安装有轴承的外圈，且轴承的内圈固定套设于螺杆14上。In the present invention, the outer ring of the bearing is fixedly mounted on the inner side wall of the connecting ring 13 , and the inner ring of the bearing is fixedly sleeved on the screw 14 .

本发明中，支撑座19上开设有第二放置槽，且第二推杆电机20固定安装于第二放置槽内。In the present invention, the support base 19 is provided with a second placement slot, and the second push rod motor 20 is fixedly installed in the second placement slot.

本发明中，将橡胶机械配套件放在第一夹持板9和第二夹持板10之间，然后转动螺杆14，螺杆14在螺纹孔15内转动的同时进行移动，螺杆14在连接环13内转动，同时，螺杆14移动带动连接环13移动，连接环13通过连接柱12和连接块11带动第二夹持板10靠近第一夹持板9，对橡胶机械配套件进行夹持，然后启动第一推杆电机7，第一推杆电机7带动移动座8移动，调节橡胶机械配套件和摩擦条3之间的距离，从而调整到合适的摩擦力，接着启动第二推杆电机20，第二推杆电机20带动电动机22进行高度调节，调节的合适的位置后，启动电动机22，电动机22带动齿轮23转动，从而通过齿条18带动升降柱5上下移动，升降柱5带动升降座6和第一推杆电机7上下移动，从而带动橡胶机械配套件上下移动，橡胶机械配套件与摩擦条3摩擦，进行摩擦寿命试验，橡胶机械配套件和冲击块26不断撞击，进行冲击寿命试验。In the present invention, the rubber mechanical fitting is placed between the first clamping plate 9 and the second clamping plate 10, and then the screw 14 is rotated, the screw 14 moves while rotating in the threaded hole 15, and the screw 14 is in the connecting ring 13 rotates inside, at the same time, the movement of the screw 14 drives the connecting ring 13 to move, and the connecting ring 13 drives the second clamping plate 10 to approach the first clamping plate 9 through the connecting column 12 and the connecting block 11, and clamps the rubber mechanical accessories. Then start the first push rod motor 7, the first push rod motor 7 drives the moving base 8 to move, adjusts the distance between the rubber mechanical matching part and the friction strip 3, so as to adjust the appropriate friction force, and then starts the second push rod motor 20. The second push rod motor 20 drives the motor 22 to adjust the height. After adjusting the appropriate position, the motor 22 is started, and the motor 22 drives the gear 23 to rotate, thereby driving the lifting column 5 to move up and down through the rack 18, and the lifting column 5 drives the lifting and lowering. The seat 6 and the first push rod motor 7 move up and down, thereby driving the rubber mechanical accessory to move up and down, the rubber mechanical accessory rubs against the friction strip 3, and the friction life test is performed. test.

以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (5)

1. The service life testing machine for the rubber mechanical matching part comprises a base (1) and is characterized in that a supporting column (2) is arranged at the top of the base (1), a friction strip (3) is arranged on one side of the supporting column (2), a lifting hole (4) is formed in one side of the supporting column (2), a lifting column (5) is arranged in the lifting hole (4) in a sliding mode, a lifting seat (6) is connected to one side of the lifting column (5), a first push rod motor (7) is fixedly arranged on the lifting seat (6), a moving seat (8) is welded to an output shaft of the first push rod motor (7), a first clamping plate (9) is arranged on one side of the moving seat (8), a fixed column (16) is fixedly arranged on one side of the first clamping plate (9), a telescopic column (17) is slidably arranged on the fixed column (16), a second clamping plate (10) is fixedly connected to the telescopic column (17), a connecting block (11) is fixedly arranged on one side, far away from the first clamping plate (9), a connecting column (12) is connected to the connecting block (11), a connecting ring (12) is sleeved with a screw (13), and a screw (13) is arranged in the moving seat (13), the screw (14) is arranged in the threaded hole (15) in a threaded manner;
a rack (18) is arranged on the other side of the lifting column (5), a gear (23) is meshed with the rack (18), the gear (23) is fixedly connected with an output shaft of a motor (22), the motor (22) is fixedly connected with a motor base (21), the motor base (21) is fixedly connected with an output shaft of a second push rod motor (20), the second push rod motor (20) is fixedly connected with a supporting seat (19), and the supporting seat (19) is fixedly arranged on the base (1);
the top fixed mounting of base (1) has fixing base (25), and fixed mounting has bump (26) on fixing base (25), the welding has lifter (24) on the output shaft of second push rod motor (20), and lifter (24) and motor cabinet (21) fixed connection, the centre gripping has rubber machinery to join in marriage the external member between first grip block (9) and second grip block (10), and rubber machinery joins in marriage the external member and cooperate with rub strip (3) and bump (26) respectively, first standing groove has been seted up on lift seat (6), and first push rod motor (7) fixed mounting is in first standing groove.
2. The rubber mechanical matching part service life testing machine according to claim 1, wherein the first clamping plate (9) and the second clamping plate (10) are both arc-shaped structures, and the first clamping plate (9) and the second clamping plate (10) are matched for clamping the rubber mechanical matching part.
3. The rubber mechanical matching part service life tester of claim 1, wherein a telescopic hole is formed in the fixed column (16), and the telescopic column (17) is slidably mounted in the telescopic hole.
4. The service life tester of the rubber mechanical kit according to claim 1, wherein the inner side wall of the connecting ring (13) is fixedly provided with an outer ring of a bearing, and an inner ring of the bearing is fixedly sleeved on the screw rod (14).
5. The rubber mechanical matching set service life tester of claim 1, wherein a second placing groove is formed in the supporting seat (19), and the second push rod motor (20) is fixedly installed in the second placing groove.
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