Test unit for detecting surface friction coefficient of cylindrical alkaline manganese battery steel shell

Abstract

The utility model discloses a test unit for detecting the surface friction coefficient of a steel shell of a cylindrical alkaline manganese battery, which comprises a lower steel shell fixing unit, a first steel shell fixing unit and a second steel shell fixing unit, the testing unit is used for fixing a second steel shell; the friction motor is configured to drive the second steel shell to perform friction motion relative to the first steel shell; the testing unit comprises an upper steel shell fixing unit, a lower steel shell fixing unit and a testing unit, wherein the upper steel shell fixing unit is used for fixing a second steel shell; one end of the tension bar is connected with the upper steel shell fixing unit; the mechanical arm is configured to be capable of performing integral motion with the tension bar and also capable of performing relative motion with the tension bar; the spring is arranged between the other end of the tension bar and the mechanical arm in a sleeving manner and is in a compressed state; and the spring deformation sensor is used for detecting the deformation quantity of the spring. The problem that the liquidity of the steel shell is not stable through manual inspection can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment for detecting friction coefficient of steel shell of alkaline manganese battery, in particular to a testing unit for detecting surface friction coefficient of cylindrical steel shell of alkaline manganese battery. Background Art

[0002] The production process of primary alkaline manganese battery is generally divided into basic processes such as manganese ring forming, manganese ring insertion, manganese ring re-pressing, steel shell groove rolling, glue coating, isolation tube insertion, electrolyte injection, zinc paste injection, sealing body insertion, and edge shaping. During the manganese ring insertion and groove rolling process, the steel shell is transferred through a magnetic disk and a fork.

[0003] During the high-speed operation of the equipment, steel shells with different surface conditions will offset when they are connected. The offset is related to the friction coefficient of the steel shell surface. If the steel shell offset is too large, the steel shell will not be able to move to a fixed position, causing problems such as equipment jamming and steel shell surface compression, requiring shutdown for maintenance, seriously affecting production line efficiency and product quality.

[0004] How to use a structure to detect the friction coefficient of two cylindrical alkaline manganese battery steel shells has become a research direction for those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a test unit for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell surface, in order to solve the technical problems existing in the background technology. In order to effectively judge the resistance of the steel shell when flowing between metal rails, a special structure is designed to detect the friction coefficient of the alkaline manganese battery steel shell surface to judge the fluidity of the steel shell between the rails.

[0006] The utility model provides the following solutions:

[0007] A test unit for detecting the friction coefficient of the surface of a cylindrical alkaline manganese battery steel shell, comprising:

[0008] A lower steel shell fixing unit, wherein the lower steel shell fixing unit is used to fix the first steel shell;

[0009] A testing unit, the testing unit is used to fix the second steel shell; and is configured to drive the second steel shell to perform friction movement relative to the first steel shell;

[0010] The test unit comprises:

[0011] An upper steel shell fixing unit, wherein the upper steel shell fixing unit is used to fix the second steel shell;

[0012] A tension rod, one end of which is connected to the upper steel shell fixing unit;

[0013] A mechanical arm, wherein the mechanical arm is configured to be capable of both integral movement with the tension rod and relative movement with the tension rod;

[0014] A spring, wherein the spring is sleeved between the other end of the tension rod and the mechanical arm and is in a compressed state;

[0015] A spring deformation sensor is used to detect the deformation amount of the spring.

[0016] In some embodiments, the lower steel shell fixing unit includes a first base, on which is provided at least one first steel shell groove; a plurality of first magnet holes are provided in the first steel shell groove in a direction extending toward the first base, for installing magnets that adsorb the first steel shell.

[0017] In some embodiments, there are multiple first steel shell grooves, and the multiple first steel shell grooves are configured to respectively match different models of first steel shells.

[0018] In some embodiments, the upper steel shell fixing unit includes a second base, on which a second steel shell groove is formed; a plurality of second magnet holes are formed in the second steel shell groove in a direction extending toward the second base, for installing magnets that adsorb the second steel shell.

[0019] In some embodiments, the tension rod includes an upper tension rod portion and a lower tension rod portion, the upper tension rod portion is threadedly connected to the lower tension rod portion, a tension rod hole is provided in the mechanical arm, a slidingly connected sleeve is provided in the tension rod hole, stops are provided at both ends of the tension rod hole to prevent the sleeve from slipping out, a limiting step is provided at the lower tension rod portion, and the limiting step is arranged between the sleeve and a side of the stop away from the spring; the spring is sleeved on the upper tension rod portion and is compressed by the end of the upper tension rod portion and the sleeve.

[0020] In some embodiments, the second steel shell groove is arranged at a 90° angle to the first steel shell groove.

[0021] In some embodiments, the upper steel shell fixing unit is connected to the tension rod via a connecting rod, and the position of the connecting rod relative to the tension rod can be adjusted in the height direction.

[0022] The beneficial effects of the utility model are:

[0023] The utility model has novel structure and strong practicality. The friction coefficient of two cylindrical alkaline manganese battery steel shells is detected by this structure, which is used to judge the fluidity of the steel shells in the alkaline battery production line, so as to avoid the use of steel shells with large surface friction in the production line, which may cause equipment jamming and product quality problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1is a schematic diagram of the overall structure of the device in the embodiment;

[0025] Attached Figure 2 It is a schematic diagram of the structure of the upper steel shell fixing unit;

[0026] Attached Figure 3 It is a schematic diagram of the structure of the lower steel shell fixing unit;

[0027] Attached Figure 4 is a schematic diagram of the test unit;

[0028] Attached Figure 5 It is a cross-sectional view of the tension rod

[0029] Attached Figure 6 It is a schematic diagram of the drive structure;

[0030] Illustration: 202-second steel shell slot, 203-second magnet hole, 301-magnet hole No. 7, 302-magnet hole No. 5, 303-stainless steel shell slot No. 7, 304-steel shell slot No. 5, 401-spring deformation sensor, 402-spring, 403-

[0031] Tension rod, 404-connecting rod, 405-upper steel shell fixing unit, 406-lower steel shell fixing unit, 407-mechanical arm, 408-sleeve, 501-upper part of tension rod, 502-limiting step, 503-lower part of tension rod, 601-driving screw, 602-slider track, 603-slider, 604-slider displacement sensor, 605-driving motor. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0033] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0037] The following will be combined Figure 1-6 , a test unit for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell surface involved in the embodiment of the present application is described in detail. It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation of the present application. In order to explain the present application in more detail, it is described in detail below in conjunction with a device for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell surface.

[0038] like Figure 1-2 As shown, a device for detecting the friction coefficient of the steel shell surface of a cylindrical alkaline manganese battery includes: a lower steel shell fixing unit 406, a test unit, a drive unit, and a housing, wherein the lower steel shell fixing unit 406, the test unit, and the drive unit are all arranged on the housing. The lower steel shell fixing unit 406 is used to fix the first steel shell; the test unit is used to fix the second steel shell; the test unit is configured to drive the second steel shell to perform friction movement relative to the first steel shell and collect data; the drive unit is used to provide power for the movement of the test unit and detect the real-time distance of the test unit.

[0039] See also Figure 3The lower steel shell fixing unit 406 includes a first base, on which at least one first steel shell groove is formed; a plurality of first magnet holes are formed in the first steel shell groove in a direction extending toward the first base, for installing magnets for adsorbing the first steel shell. The first steel shell is placed in the first steel shell groove and adsorbed by the embedded magnets.

[0040] In order to adapt to different steel shells, the first steel shell slots may be provided with a plurality of them, and the plurality of first steel shell slots are configured to respectively match different types of first steel shells. For example, the first steel shell slots may be divided into No. 7 steel shell slots 303 and No. 5 steel shell slots 304; No. 7 steel shell slots 303 are provided with No. 7 magnet holes 301, and No. 5 steel shell slots 304 are provided with No. 5 magnet holes 302, both of which are used to install magnets to adsorb and fix corresponding types of steel shells.

[0041] See also Figure 4 The test unit includes: an upper steel shell fixing unit 405, a tension rod 403, a mechanical arm 407, a spring 402, and a spring deformation sensor 401. The upper steel shell fixing unit 405 is used to fix the second steel shell; the upper steel shell fixing unit 405 includes a second base, and a second steel shell groove 202 is provided on the second base; a plurality of second magnet holes 203 are provided in the second steel shell groove 202 in a direction extending toward the second base, which are used to install magnets that adsorb the second steel shell.

[0042] One end of the tension rod 403 is connected to the upper steel shell fixing unit 405; the mechanical arm 407 is configured to be able to move as a whole with the tension rod 403 and to move relative to the tension rod 403; the mechanical arm 407 is configured to be able to move as a whole with the tension rod 403, which means that the mechanical arm 407, through the action of the driving unit, drives the tension rod 403 and the upper steel shell fixing unit 405 to move together, so as to achieve friction between the second steel shell fixed in the upper steel shell fixing unit 405 and the first steel shell fixed in the lower steel shell fixing unit 406.

[0043] The mechanical arm 407 is configured to be able to make relative motion with the tension rod 403; this means that when the first steel shell and the second steel shell make friction motion, friction force will be generated, and the friction force will cause the tension rod 403 to move backward relatively in the hole of the tension rod 403, causing the spring 402 to contract under force, and the spring deformation sensor 401 will record the deformation of the spring 402 in real time and convert it into a friction coefficient.

[0044] See also Figure 5The tension rod 403 includes an upper tension rod portion 501 and a lower tension rod portion 503, the upper tension rod portion 501 and the lower tension rod portion 503 are threadedly connected, a tension rod 403 hole is provided in the mechanical arm 407, a slidingly connected sleeve 408 is provided in the tension rod 403 hole, both ends of the tension rod 403 hole are respectively provided with stoppers to prevent the sleeve 408 from sliding out, the lower tension rod portion 503 is provided with a limiting step 502, and the limiting step 502 is arranged between the sleeve 408 and the side of the stopper away from the spring 402; the spring 402 is sleeved on the upper tension rod portion 501, and is compressed by the end of the upper tension rod portion 501 and the sleeve 408. That is, the tension rod lower portion 503 , the sleeve 408 , the tension rod upper portion 501 and the tension rod 403 hole cooperate with each other to achieve that the robot arm 407 is configured to be able to move as a whole with the tension rod 403 and to move relative to the tension rod 403 .

[0045] When the friction force acts on the tension rod 403, the friction force is transmitted to the lower part 503 of the tension rod, and the limiting step 502 of the lower part 503 of the tension rod pushes the sleeve 408 to move backward together in the hole of the tension rod 403, and compresses the spring 402. The spring deformation sensor 401 can record the deformation of the spring 402 in real time.

[0046] In some examples, two tension rods 403 may be provided, and each tension rod 403 is matched with a spring 402. Two independent through holes are provided in the sleeve 408 for the tension rod 403 to pass through. Each spring 402 is backed by a corresponding set of spring deformation sensors 401.

[0047] See also Figure 6 , the driving unit includes a driving screw 601, a slider 603 track 602, a slider 603, and a driving motor 605; the slider 603 is slidably connected in the slider 603 track 602, the slider 603 is connected to the mechanical arm 407, the driving screw 601 is set through the support frame, and the driving screw 601 thread runs through the slider 603, and the driving motor 605 is used to drive the driving screw 601 to rotate, which can be a servo motor. The slider 603 adopts a lead screw structure to achieve forward and backward movement, thereby driving the mechanical arm 407 to move forward and backward. The driving unit is to provide power transmission to the overall mechanism and drive the test unit to move. The working principle is to drive the servo motor and configure the speed regulating device to form an axial power source. In order to facilitate the measurement of the moving position of the mechanical arm 407, a slider displacement sensor 604 can be installed on one side of the support frame. The battery length is limited, and the displacement distance of the slider 603 is set. The slider displacement sensor 604 detects the distance that the slider 603 moves forward. When the set length is reached, the servo motor stops running.

[0048] In some embodiments, the second steel shell groove 202 is arranged at a 90° angle with the first steel shell groove, so that the first steel shell and the second steel shell can form a stable friction, thereby facilitating the detection of the friction coefficient.

[0049] In some embodiments, the upper steel shell fixing unit 405 is connected to the tension rod 403 via a connecting rod 404, and the position of the connecting rod 404 relative to the tension rod 403 can be adjusted in the height direction. By adjusting the height of the connecting rod 404 relative to the tension rod 403, the relative position of the first steel shell groove and the second steel shell groove 202 can be adjusted, and thus can be adjusted according to steel shells of different specifications.

[0050] The specific test process is as follows:

[0051] 1. As attached Figure 1 As shown, turn on the device power;

[0052] 2. As attached Figure 2 As shown, the second steel shell is placed horizontally in the second steel shell groove of the upper steel shell fixing unit, and the second steel shell is fixed by the magnet in the second magnet hole.

[0053] 3. As attached Figure 3 As shown, the first steel shell is placed in the No. 7 steel shell slot, and the first steel shell is fixed by the magnet in the No. 7 magnet hole (Note: take the No. 7 steel shell as an example).

[0054] 4. As attached Figure 4 As shown, after the steel shell is fixed, the upper steel shell fixing unit and the connecting rod are combined, and the reset button on the display screen is clicked to start the servo motor. The motor drives the driving screw, and the driving screw drives the mechanical arm connected thereto to reset the tension device to the origin.

[0055] 5. Adjust the position of the test unit, observe the tension display value, and control the tension display value between 0-0.05N.

[0056] 6. Start the servo motor, which drives the driving screw, and the driving screw drives the connected mechanical arm to move forward. When the mechanical arm moves forward, friction occurs between the second steel shell and the first steel shell between the steel shell fixing unit and the lower steel shell fixing unit in the moving direction to generate force. The friction force is transmitted to the tension rod through the connecting rod. The friction force causes the tension rod to move backward relatively in the tension rod hole, causing the spring to contract under force. The spring deformation sensor records the spring deformation in real time and converts it into the friction coefficient.

[0057] The friction coefficient is calculated as follows:

[0058] f=K*X f is the friction force, K is the spring elastic coefficient, X is the spring deformation, static friction is represented by fs, and dynamic friction is represented by fk;

[0059] μs=fs / Nμs is the static friction coefficient, fs is the force on the spring when the steel shell starts to move, and N is the vertical downward force given to the steel shell by the upper steel shell fixing unit;

[0060] μk=fk / Nμk is the dynamic friction coefficient, fk is the real-time pulling force on the spring when the steel shell moves forward, and N is the vertical downward force given to the steel shell by the upper steel shell fixing unit.

[0061] 7. After the test is completed, click the reset button to reset the device to the origin and remove the steel shell just tested.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A test unit for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell surface, characterized in that: include: A lower steel shell fixing unit, wherein the lower steel shell fixing unit is used to fix the first steel shell; A testing unit, the testing unit being used to fix the second steel shell; configured to drive the second steel shell to perform frictional motion relative to the first steel shell; The test unit comprises: An upper steel shell fixing unit, wherein the upper steel shell fixing unit is used to fix the second steel shell; A tension rod, one end of which is connected to the upper steel shell fixing unit; A mechanical arm, wherein the mechanical arm is configured to be capable of both integral movement with the tension rod and relative movement with the tension rod; A spring, wherein the spring is sleeved between the other end of the tension rod and the mechanical arm and is in a compressed state; A spring deformation sensor is used to detect the deformation amount of the spring.

2. A test unit for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell according to claim 1, characterized in that: The lower steel shell fixing unit includes a first base, on which at least one first steel shell groove is formed; a plurality of first magnet holes are formed in the first steel shell groove in a direction extending toward the first base, for installing magnets for adsorbing the first steel shell.

3. A test unit for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell surface according to claim 2, characterized in that: There are a plurality of first steel shell grooves, and the plurality of first steel shell grooves are configured to respectively match first steel shells of different models.

4. A test unit for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell surface according to claim 1, characterized in that: The upper steel shell fixing unit comprises a second base, on which a second steel shell groove is provided; a plurality of second magnet holes are provided in the second steel shell groove in a direction extending toward the second base, for installing magnets for adsorbing the second steel shell.

5. A test unit for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell surface according to claim 1, characterized in that: The tension rod includes an upper part and a lower part of the tension rod, the upper part of the tension rod is threadedly connected to the lower part of the tension rod, a tension rod hole is provided in the mechanical arm, a sliding sleeve is provided in the tension rod hole, both ends of the tension rod hole are respectively provided with stops to prevent the sleeve from sliding out, the lower part of the tension rod is provided with a limiting step, and the limiting step is arranged between the sleeve and the side of the stop away from the spring; the spring is sleeved on the upper part of the tension rod and is compressed by the end of the upper part of the tension rod and the sleeve.

6. A test unit for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell surface according to claim 4, characterized in that: The second steel shell groove is arranged at an angle of 90° to the first steel shell groove.

7. A test unit for detecting the friction coefficient of the cylindrical alkaline manganese battery steel shell surface according to claim 1, characterized in that: The upper steel shell fixing unit is connected to the tension rod through a connecting rod, and the position of the connecting rod relative to the tension rod can be adjusted in the height direction.

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