Scraper conveyor sprocket shaft set chain socket wear measuring tool and method

Abstract

A kind of scraper conveyor chain wheel shaft group chain nest wear measurement frock and method, including first leg, second leg, first scale, second scale;The upper end of first leg and second leg is hinged by fixed assembly;First scale is slidably installed with fixed assembly, so that first scale can slide up and down along the longitudinal direction of fixed assembly, the lower end of first scale is horizontally fixed with long needle, and the front end face of long needle is slidably attached with first leg and second leg;The two sides of second scale are slidably installed with first leg and second leg respectively, for measuring the angle between first leg and first scale, the angle between second leg and first scale.The related parameters of the measured chain wheel tooth are measured by using chain wheel shaft group chain nest wear measurement frock, the actual wear of the measured chain nest point is obtained, in use, it is simple to operate, reading is convenient, can reduce manual and measurement cost, according to measurement result, timely adjust or replace chain wheel shaft group, effectively improve the life of chain and whole machine.

Description

Technical Field

[0001] This invention relates to the field of scraper conveyor technology, and in particular to a tooling and method for measuring the wear of the chain grooves in the sprocket shaft assembly of a scraper conveyor. Background Technology

[0002] The sprocket shaft assembly is the core transmission component of a scraper conveyor, and its performance significantly impacts the conveyor's operating efficiency, stability, and service life. Accurate matching between the sprocket shaft assembly's chain lugs and the scraper chain links prevents chain misalignment and derailment. Excessive wear on the sprocket shaft assembly's chain lugs can lead to chain skipping, jamming, or even breakage, causing downtime. To ensure normal equipment operation and extend chain life, the wear condition of the sprocket chain lugs should be checked regularly, and the sprocket shaft assembly should be replaced as needed.

[0003] like Figure 1 As shown, the downhole sprocket shaft assembly and scraper chain are engaged, resulting in a confined operating space and hindering measurement work. Furthermore, as... Figure 2 As shown, the meshing area between the chain bushing and the chain is located near the lower part of the bushing. Long-term wear between the bushing and the chain causes the lower surface of the bushing to become concave, making it difficult to accurately measure the wear and determine the measurement reference using measuring tools such as calipers. Currently, there are no simple and mature tools and methods for measuring the wear of sprocket shaft assembly chain bushings; most wear measurements rely on visual observation or rough measurement. This inevitably leads to premature replacement of the sprocket shaft assembly, or delayed replacement, resulting in abnormal chain meshing, exacerbating chain wear, and causing chain skipping, chain jamming, and chain breakage. Summary of the Invention

[0004] In order to solve the technical problems existing in the above-mentioned technologies, it is necessary to provide a tooling for measuring the wear of the chain groove of the sprocket shaft assembly of a scraper conveyor.

[0005] A tooling for measuring the wear of the chain grooves in a scraper conveyor sprocket shaft assembly includes a first leg, a second leg, a first scale, and a second scale;

[0006] The upper ends of the first leg and the second leg are hinged together by a fixing component, so that the angle between the first leg and the second leg can be adjusted.

[0007] The first scale is slidably installed with the fixing component, so that the first scale can slide down along the longitudinal direction of the fixing component. A long needle is horizontally fixed at the lower end of the first scale, and the front end face of the long needle slides and fits against the first leg and the second leg.

[0008] The second scale is slidably mounted on both sides of the first leg and the second leg, respectively, and is used to measure the angle between the first leg and the first scale, and the angle between the second leg and the first scale.

[0009] Preferably, the second scale is curved in an arc shape toward the hinge end of the first leg and the second leg.

[0010] Preferably, the second scale is symmetrically provided with guide holes that match its own curvature, and the first and second legs are fixed with sliding heads that are adapted to the guide holes.

[0011] Preferably, the lower ends of the first leg and the second leg have clamping ends that bend toward the first scale.

[0012] Preferably, the fixing component includes a first connecting part and a second connecting part; the first connecting part is hinged to the upper ends of the first leg and the second leg, the second connecting part is fixed to the first connecting part, and has a square hole along the longitudinal direction of the second connecting part that allows the first scale to slide longitudinally.

[0013] Preferably, the first connecting part is threadedly fitted with a locking part capable of locking the displacement of the first leg and the second leg.

[0014] It is also necessary to provide a method for measuring the wear of the chain grooves in the sprocket shaft assembly of a scraper conveyor.

[0015] A method for measuring chain wear in a scraper conveyor sprocket shaft assembly, using the aforementioned fixture for measuring chain wear in the scraper conveyor sprocket shaft assembly, includes the following steps:

[0016] Step S1: Obtain the rotation radius r of the first and second legs of the measuring fixture in its initial state, the distance b from the lower end of the first scale to the rotation center of the first and second legs, and the initial angle between the first leg and the first scale. The initial angle between the second leg and the first scale ;

[0017] Step S2: Open the first leg and the second leg, and move the lower ends of the first leg and the second leg to the area to be measured, so that the lower ends of the first leg and the second leg contact the chain socket;

[0018] Step S3: Align the bottom center line of the first scale with the center line of the sprocket tooth being measured, and ensure that the long needle is perpendicular to the center line of the sprocket tooth being measured;

[0019] Step S4: Obtain the measured angle between the first leg and the first ruler. The measured angle between the second leg and the first ruler The first scale extension length c

[0020] Step S5: Obtain the distance from the left side of the tested sprocket tooth, the test chain notch, to the rotation center of the first and second legs. The distance from the right side of the sprocket tooth where the chain is being tested to the rotation center of the first and second legs. , respectively obtain , The difference in size between the rotation radius r and the vertical dimension ;

[0021] Step S6: Based on the obtained rotation radius r and initial angle Initial angle Measured angle Measured angle Difference size Calculate the horizontal distance d from the left side of the measured sprocket tooth to the center line of the sprocket tooth, and the horizontal distance e from the right side of the measured sprocket tooth to the center line of the sprocket tooth.

[0022] Step S7: Based on the obtained rotation radius r and difference dimension 1. Distance b, Extension length c, Calculate the distance from the left side of the measured sprocket tooth's sprocket notch to the top of the sprocket tooth. And the distance from the test sprocket tooth tip to the right side of the sprocket tooth. ;

[0023] Step S8: Based on the determined distance , The original design dimensions of the measured sprocket teeth were obtained at a distance of [missing information]. The theoretical thickness D corresponding to the horizontal distance d at a given location. The measured original design dimensions of the sprocket teeth are at a distance The theoretical thickness E corresponding to the horizontal distance e at that location;

[0024] Step S9: Based on the obtained horizontal distance d, theoretical thickness D, horizontal distance e, and theoretical thickness E, calculate the actual wear amount of the measured chain notch on the left side of the sprocket tooth. And the actual wear of the chain notch on the right side of the sprocket tooth. ;

[0025] Step S10: Based on the obtained actual wear amount Actual wear and tear Based on the material, processing and heat treatment process of the sprocket shaft assembly, determine whether the sprocket shaft assembly needs to be reversed or replaced with a new sprocket shaft assembly.

[0026] Preferably, in step S6, the horizontal distance d and the horizontal distance e are obtained in the following way: ; .

[0027] Preferably, in step S7, the distance , Obtained through the following methods ; .

[0028] Preferably, in step S9, the actual wear amount Actual wear and tear Obtained through the following methods ; .

[0029] Compared with existing technologies, the present invention provides a fixture and method for measuring chain wear of sprocket shaft assembly in a scraper conveyor, comprising a first leg, a second leg, a first scale, and a second scale. The upper ends of the first and second legs are hinged by a fixing component, allowing the angle between the first and second legs to be adjusted. The first scale is slidably installed with the fixing component, allowing it to slide down along the longitudinal direction of the fixing component. A long needle is horizontally fixed at the lower end of the first scale, with its front end face slidably fitting against the first and second legs. The two sides of the second scale are slidably installed with the first and second legs respectively, used to measure the angle between the first leg and the first scale, and the angle between the second leg and the first scale. By using the sprocket shaft assembly chain wear measuring fixture to measure the relevant parameters of the sprocket teeth, the actual wear amount of the measured chain wear point is obtained. Combined with the material, processing, and heat treatment process of the sprocket shaft assembly, it is determined whether the sprocket shaft assembly needs to be reversed or replaced with a new sprocket shaft assembly. It is easy to operate, convenient to read, and reliable in use. It can reduce labor and measurement costs. Based on the measurement results, the sprocket shaft group can be adjusted or replaced in time, which can effectively improve the life of the chain and the whole machine. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram showing the downhole sprocket shaft assembly and scraper chain in meshing state.

[0032] Figure 2 This is a schematic diagram of the meshing area between the chain socket and the chain.

[0033] Figure 3 This is a schematic diagram of the tooling for measuring the wear of the chain grooves in the sprocket shaft assembly of the scraper conveyor according to the present invention.

[0034] Figure 4 For the present invention Figure 3 A side view structural diagram.

[0035] Figure 5 This is a schematic diagram of the structure of the fixing component of the present invention.

[0036] Figure 6 For the present invention Figure 5 A top-view structural diagram.

[0037] Figure 7 For the present invention Figure 5 A side view structural diagram.

[0038] Figure 8 This is a schematic diagram of the initial state of the sprocket shaft assembly chain wear measuring fixture of the present invention.

[0039] Figure 9 This is a schematic diagram of the sprocket shaft assembly chain wear measuring tool of the present invention during measurement.

[0040] Figure 10 This is a schematic diagram of chain socket wear measurement according to the present invention.

[0041] In the figure: First leg 01, Second leg 02, First scale 03, Second scale 04, Fixing component 05, First connecting part 51, Second connecting part 52, Square hole 53, Locking part 54, Guide hole 06, Sliding head 07, Clamping end 08, Long needle 09. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0044] Please refer to Figure 3 , Figure 4 The present invention provides a tooling for measuring the wear of the chain groove of a scraper conveyor sprocket shaft assembly, including a first support leg 01, a second support leg 02, a first scale 03, and a second scale 04;

[0045] The upper ends of the first leg 01 and the second leg 02 are hinged by a fixing component 05, so that the angle between the first leg 01 and the second leg 02 can be adjusted.

[0046] The first scale 03 is slidably installed with the fixing component 05, so that the first scale 03 can slide down along the longitudinal direction of the fixing component 05. A long needle 09 is horizontally fixed at the lower end of the first scale 03. The front end of the long needle 09 slides and fits against the first leg 01 and the second leg 02, so that the long needle 09 can provide support for the lower part of the first leg 01 and the second leg 02 when in use.

[0047] The second scale 04 is slidably mounted on both sides of the first leg 01 and the second leg 02, respectively, and is used to measure the angle between the first leg 01 and the first scale 03, and the angle between the second leg 02 and the first scale 03.

[0048] In one embodiment, the second scale 04 is bent into an arc shape toward the hinge end of the first leg 01 and the second leg 02, so that when the first leg 01 and the second leg 02 are opened, the second scale 04 can provide a certain guiding function for the first leg 01 and the second leg 02.

[0049] Correspondingly, guide holes 06 with the same curvature as itself are symmetrically provided on the second scale 04, and sliding heads 07 adapted to the guide holes 06 are fixed on the first leg 01 and the second leg 02.

[0050] In one embodiment, the lower ends of the first leg 01 and the second leg 02 have clamping ends 08 that bend toward the first scale 03, so that the lower ends of the first leg 01 and the second leg 02 can be accurately locked onto the test chain socket.

[0051] Please refer to Figures 5 to 7 In one embodiment, the fixing component 05 includes a first connecting part 51 and a second connecting part 52; the first connecting part 51 is hinged to the upper ends of the first support leg 01 and the second support leg 02, the second connecting part 52 is fixed on the first connecting part 51, and has a square hole 53 along the longitudinal direction of the second connecting part 52, which enables the first scale 03 to slide longitudinally along the square hole 53.

[0052] Correspondingly, a locking part 54 is threadedly installed on the first connecting part 51. By screwing the locking part 54, the upper ends of the first leg 01 and the second leg 02 can be pressed together, thereby locking the displacement of the first leg 01 and the second leg 02. That is, after the first leg 01 and the second leg 02 are opened to a certain angle, the locking part 54 can be used to fix their positions to improve the measurement accuracy.

[0053] Please refer to Figures 8 to 10In one embodiment, the present invention provides a method for measuring chain wear in a scraper conveyor sprocket shaft assembly. The method utilizes a scraper conveyor sprocket shaft assembly chain wear measuring fixture to measure chain wear, and includes the following steps:

[0054] Step S1: Obtain the rotation radius r of the first leg 01 and the second leg 02, the distance b from the lower end of the first scale 03 to the rotation center of the first leg 01 and the second leg 02, and the initial angle between the first leg 01 and the first scale 03 in the initial state of the measuring fixture. The initial angle between the second leg 02 and the first scale 03 ;

[0055] Step S2: Open the first leg 01 and the second leg 02, and move the lower ends of the first leg 01 and the second leg 02 to the area to be measured, so that the lower ends of the first leg 01 and the second leg 02 contact the chain socket.

[0056] Step S3: Align the bottom center line of the first scale 03 with the center line of the sprocket tooth being measured, and ensure that the long needle 09 is perpendicular to the center line of the sprocket tooth being measured;

[0057] Step S4: Obtain the measured angle between the first leg 01 and the first scale 03. The measured angle between the second leg 02 and the first scale 03 The first scale 03 extends by length c;

[0058] Step S5: Obtain the distance from the left side of the tested sprocket tooth, the test chain notch, to the rotation center of the first leg 01 and the second leg 02. The distance from the right side of the sprocket tooth where the chain is being tested to the rotation center of the first leg 01 and the second leg 02. , respectively obtain , The difference in size between the rotation radius r and the vertical dimension ;

[0059] Step S6: Based on the obtained rotation radius r and initial angle Initial angle Measured angle Measured angle Difference size The horizontal distance d from the left side of the measured sprocket tooth's groove to the center line of the sprocket tooth, and the horizontal distance e from the right side of the measured sprocket tooth's groove to the center line of the sprocket tooth, are obtained; where, ; ;

[0060] Step S7: Based on the obtained rotation radius r and difference dimension 1. Distance b, Extension length c, Calculate the distance from the left side of the measured sprocket tooth's sprocket notch to the top of the sprocket tooth. And the distance from the test sprocket tooth tip to the right side of the sprocket tooth. ;in, ; ;

[0061] Step S8: Based on the determined distance , The original design dimensions of the measured sprocket teeth were obtained at a distance of [missing information]. The theoretical thickness D corresponding to the horizontal distance d at a given location. The measured original design dimensions of the sprocket teeth are at a distance The theoretical thickness E corresponding to the horizontal distance e at that location;

[0062] Step S9: Based on the obtained horizontal distance d, theoretical thickness D, horizontal distance e, and theoretical thickness E, calculate the actual wear amount of the measured chain notch on the left side of the sprocket tooth. And the actual wear of the chain notch on the right side of the sprocket tooth. ;in, ; ;

[0063] Step S10: Based on the obtained actual wear amount Actual wear and tear Based on the material, processing and heat treatment process of the sprocket shaft assembly, determine whether the sprocket shaft assembly needs to be reversed or replaced with a new sprocket shaft assembly.

[0064] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A method for measuring the wear of the chain grooves in a scraper conveyor sprocket shaft assembly, comprising a first leg, a second leg, a first scale, and a second scale; the upper ends of the first leg and the second leg are hinged by a fixing component, allowing the angle between the first leg and the second leg to be adjusted; the first scale is slidably mounted to the fixing component, allowing the first scale to slide down along the longitudinal direction of the fixing component; a long needle is horizontally fixed at the lower end of the first scale, and the front end face of the long needle slides against the first leg and the second leg; the two sides of the second scale are slidably mounted to the first leg and the second leg respectively, for measuring the angle between the first leg and the first scale, and the angle between the second leg and the first scale, characterized in that: The method for measuring the wear of the sprocket shaft assembly in a scraper conveyor includes the following steps: Step S1: Obtain the rotation radius r of the first and second legs of the measuring fixture in its initial state, the distance b from the lower end of the first scale to the rotation center of the first and second legs, and the initial angle between the first leg and the first scale. The initial angle between the second leg and the first scale ; Step S2: Open the first leg and the second leg, and move the lower ends of the first leg and the second leg to the area to be measured, so that the lower ends of the first leg and the second leg contact the chain socket; Step S3: Align the bottom center line of the first scale with the center line of the sprocket tooth being measured, and ensure that the long needle is perpendicular to the center line of the sprocket tooth being measured; Step S4: Obtain the measured angle between the first leg and the first ruler. The measured angle between the second leg and the first ruler The first scale extends by length c; Step S5: Obtain the distance from the left side of the tested sprocket tooth, the test chain notch, to the rotation center of the first and second legs. The distance from the right side of the sprocket tooth where the chain is being tested to the rotation center of the first and second legs. , respectively obtain , The difference in size between the rotation radius r and the vertical dimension ; Step S6: Based on the obtained rotation radius r and initial angle Initial angle Measured angle Measured angle Difference size and Calculate the horizontal distance d from the left side of the measured sprocket tooth to the center line of the sprocket tooth, and the horizontal distance e from the right side of the measured sprocket tooth to the center line of the sprocket tooth. Step S7: Based on the obtained rotation radius r and difference dimension and 1. Distance b, Extension length c, Calculate the distance from the left side of the measured sprocket tooth to the top of the sprocket tooth. And the distance from the test sprocket tooth tip to the right side of the sprocket tooth. ; Step S8: Based on the determined distance , The original design dimensions of the measured sprocket teeth were obtained at a distance of [missing information]. The theoretical thickness D corresponding to the horizontal distance d at that location. The measured original design dimensions of the sprocket teeth are at a distance The theoretical thickness E corresponding to the horizontal distance e at that location; Step S9: Based on the obtained horizontal distance d, theoretical thickness D, horizontal distance e, and theoretical thickness E, calculate the actual wear amount of the measured chain notch on the left side of the sprocket tooth. And the actual wear of the chain notch on the right side of the sprocket tooth. ; Step S10: Based on the obtained actual wear amount Actual wear and tear Based on the material, processing and heat treatment process of the sprocket shaft assembly, determine whether the sprocket shaft assembly needs to be reversed or replaced with a new sprocket shaft assembly.

2. The method for measuring chain wear of sprocket shaft assembly in a scraper conveyor according to claim 1, characterized in that: In step S6, the horizontal distance d and the horizontal distance e are obtained in the following way. ； 。 3. The method for measuring chain wear of sprocket shaft assembly in a scraper conveyor according to claim 2, characterized in that: In step S7, the distance , Obtained through the following methods ； 。 4. The method for measuring chain wear of sprocket shaft assembly in a scraper conveyor according to claim 3, characterized in that: In step S9, the actual wear amount Actual wear and tear Obtained through the following methods ； 。 5. The method for measuring chain wear of sprocket shaft assembly in a scraper conveyor according to claim 1, characterized in that: The second scale is curved in an arc shape toward the hinge end of the first and second legs.

6. The method for measuring chain wear of sprocket shaft assembly in a scraper conveyor according to claim 5, characterized in that: The second scale is symmetrically provided with guide holes that match its own curvature, and the first and second legs are fixed with sliding heads that are adapted to the guide holes.

7. The method for measuring chain wear of sprocket shaft assembly in a scraper conveyor according to claim 6, characterized in that: The lower ends of the first leg and the second leg have clamping ends that bend toward the first scale.

8. The method for measuring chain wear of sprocket shaft assembly in a scraper conveyor according to claim 7, characterized in that: The fixing component includes a first connecting part and a second connecting part; the first connecting part is hinged to the upper ends of the first leg and the second leg, the second connecting part is fixed to the first connecting part, and has a square hole along the longitudinal direction of the second connecting part that allows the first scale to slide longitudinally.

9. The method for measuring chain wear of sprocket shaft assembly in a scraper conveyor according to claim 8, characterized in that: The first connecting part is threaded with a locking part that can lock the displacement of the first leg and the second leg.

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