Measuring tool for measuring end face of carrier roller bearing seat

Abstract

The utility model belongs to the field of measuring tools, and relates to a measuring tool for measuring the end face of a carrier roller bearing seat, which comprises a vernier caliper, the vernier caliper comprises a caliper main body, a fixed measuring jaw fixedly arranged at one end of the caliper main body and a movable measuring jaw movably arranged on the caliper main body, and is characterized by further comprising a concave surface measuring mechanism, the fixed measuring jaw and the movable measuring jaw are respectively provided with a concave surface measuring mechanism. The measuring tool for measuring the end face of the carrier roller bearing seat is scientific and reasonable in structural design, has the advantages of being convenient to operate, capable of improving measuring precision and measuring efficiency and easy to achieve, and has high innovativeness.

Description

Technical Field

[0001] The utility model belongs to the field of measuring tools and relates to a measuring tool for measuring the end face of a roller bearing seat. Background Art

[0002] For a belt conveyor used for bulk material conveying, its working conditions are usually relatively harsh. As an important component on the belt conveyor, in order to ensure the service life of the roller bearing, it is usually necessary to detect the axial play of the roller.

[0003] The measurement accuracy of the end face of the bearing seat is related to the positioning accuracy of the bearing, thus affecting the axial play. The national standard for the axial play is that under the action of an axial load of 500 N, the axial play value of the roller shall not be greater than 0.7 mm. In order to achieve higher product quality, the enterprise sets the target value of this as 0.3 mm. Therefore, it is necessary to further control the accuracy of each link, and the measurement accuracy of the distance between the end faces of the bearing seats will directly affect the axial play.

[0004] Since there are many types of roller lengths, it is necessary to reposition the bearing spacing for each batch during the roller production process. To accurately position the bearing, it is necessary to accurately measure the distance between the bearing seats. Measuring the distance between the end faces of the bearing seats is restricted by the actual internal structure of the bearing seat and the measuring tool.

[0005] The current measurement method can only be measured with a meter stick. To ensure that the roller quality meets the national standard requirements, each batch needs to be measured repeatedly many times before entering the next process. It is very difficult to achieve a measurement accuracy within 0.1 mm, which affects the accuracy of the next process, thus affecting the production efficiency and quality of the product.

[0006] In view of this, it is very necessary to design a new type of high-precision measuring tool for the end face of the bearing seat for accurate measurement to reduce the cumulative error of the next process. Summary of the Invention

[0007] The purpose of the utility model is to provide a measuring tool for measuring the end face of a roller bearing seat, which has a scientific and reasonable structural design, is convenient to operate, improves the measurement accuracy, improves the measurement efficiency, and is easy to implement.

[0008] The utility model solves its technical problems through the following technical solutions:

[0009] A measuring tool for measuring the end face of a roller bearing seat includes a vernier caliper. The vernier caliper includes a caliper body, a fixed jaw fixedly installed at one end of the caliper body, and a movable jaw movably arranged on the caliper body. Its characteristics are that it further includes a concave surface measuring mechanism, and the concave surface measuring mechanism is installed on both the fixed jaw and the movable jaw.

[0010] The described concave surface measuring mechanism includes a sleeve and a movable measuring rod. A sleeve is sleeved on the bottoms of the fixed jaws and the movable jaws. The sleeve is fixed between the fixed jaws and the movable jaws through a sleeve locking nut, and a movable measuring rod is installed on the sleeve.

[0011] Moreover, the movable measuring rod includes a movable sleeve and a measuring rod body. A measuring rod body is horizontally arranged on one side of the movable sleeve. The movable sleeve is sleeved outside the sleeve and is positioned on the sleeve through a movable sleeve locking nut.

[0012] Moreover, the movable measuring rod further includes a gasket. A gasket is installed on the inner wall of the movable sleeve through a fastening screw, and the movable sleeve is positioned on the sleeve through a movable sleeve locking nut.

[0013] The advantages and beneficial effects of the present utility model are as follows:

[0014] 1. This measuring tool for the end face measurement of a roller bearing seat adopts the main structure of a vernier caliper, which can achieve measurement accuracy, and is more guaranteed for the measurement accuracy during large-span measurement. The overall measurement accuracy can reach within 0.02 mm. Through the cooperation of the movable measuring rod and the sleeve, the depression depth of the concave bearing seat can be measured, realizing the measurement of the end face of the roller bearing seat.

[0015] 2. The structure design of the present utility model is scientific and reasonable, with the advantages of convenient operation, improved measurement accuracy, improved measurement efficiency, and easy implementation. It is a measuring tool for the end face measurement of a roller bearing seat with high innovation. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present utility model assembled with a cylinder skin with bearing seats assembled at both ends;

[0017] Figure 2 is an exploded schematic diagram of the concave surface measuring structure of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the measured object of the present utility model (schematic diagram of the structure of the cylinder skin and the bearing seat);

[0019] Figure 4 is a schematic structural diagram during measurement of the present utility model (h represents the reading of the vernier caliper, and k represents the distance of the end face of the measured bearing seat);

[0020] Figure 5 is a schematic diagram of the structure and measurement reading of the vernier caliper of the present utility model;

[0021] Figure 6 is a schematic diagram of the concave surface measuring mechanism of the present utility model with dimensions marked (m represents the total length of the wall thickness of the movable measuring rod and the sleeve).

[0022] Reference Numerals

[0023] 1 - Sleeve Locking Nut, 2 - Sleeve, 3 - Cylinder Skin, 4 - Vernier Caliper, 5 - Bearing Block, 6 - Moving Measuring Rod, 6 - 1 - Moving Sleeve, 6 - 2 - Measuring Rod Body, 7 - Spacer, 8 - Moving Rod Locking Nut, 9 - Fastening Screw, 10 - Fixed Measuring Jaw, 11 - Movable Measuring Jaw. Detailed Implementation Manner

[0024] The present utility model will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not restrictive, and the protection scope of the present utility model cannot be limited thereby.

[0025] A measuring tool for measuring the end face of a roller bearing block includes a vernier caliper 4. The vernier caliper includes a caliper body, a fixed measuring jaw 10 fixedly installed at one end of the caliper body, and a movable measuring jaw 11 movably arranged on the caliper body. The innovation lies in that: it further includes a concave surface measuring mechanism, and concave surface measuring mechanisms are installed on both the fixed measuring jaw and the movable measuring jaw;

[0026] The concave surface measuring mechanism includes a sleeve 2 and a moving measuring rod 6. A sleeve is sleeved at the bottom of the fixed measuring jaw and the movable measuring jaw. The sleeve is a stainless steel sleeve, and the sleeve is fixed to the fixed measuring jaw and the movable measuring jaw through a sleeve locking nut 1. The sleeve locking nut is fixed on the non - measuring surfaces of the fixed measuring jaw and the movable measuring jaw to avoid affecting the measuring accuracy; a moving measuring rod is installed on the sleeve.

[0027] The moving measuring rod includes a moving sleeve 6 - 1 and a measuring rod body 6 - 2. A measuring rod body is horizontally welded on one side of the moving sleeve. The measuring rod body can be made of round steel. The moving sleeve is sleeved outside the sleeve and is positioned on the sleeve through a moving sleeve locking nut. The non - welded side of the measuring rod body needs to ensure parallelism with the sleeve;

[0028] The moving measuring rod further includes a spacer 7. A spacer is installed on the inner wall of the moving sleeve through a fastening screw 9, and the moving sleeve is positioned on the sleeve through a moving sleeve locking nut.

[0029] The moving measuring rod passes through the stainless steel sleeve and can move up and down on the stainless steel sleeve. The gap between the moving measuring rod and the stainless steel sleeve is adjusted through the spacer. The fastening screw fixes the spacer to the inner side of the moving sleeve and moves along the y - direction on the stainless steel sleeve together with the moving measuring rod;

[0030] The moving rod locking nut can fix the moving measuring rod at any position on the stainless steel sleeve, and transfer the x - direction acting force to the stainless steel sleeve through the spacer to avoid damaging the stainless steel sleeve;

[0031] The outer circles of the two end bearing seats and the inner surface of the cylinder skin are fixed into one body by welding. The round steel in the left moving measuring rod is closely attached to the inner end face of the bearing seat. Adjust the moving measuring rod on the side of the movable jaw so that it can be adjusted along the x and y directions and make it closely attached to the inner end face of the right bearing seat.

[0032] The working principle of the present utility model is as follows:

[0033] As Figure 4 shown, the reading of the vernier caliper is h, and the precision is 0.02 mm;

[0034] As Figure 6 shown, the total length of the wall thickness of the moving measuring rod and the sleeve is a fixed value m, and the precision is 0.02 mm;

[0035] Then the distance between the end faces of the measured bearing seat is k = h - 2m, and the precision is 0.02 mm.

[0036] The present utility model can realize the precise measurement of the end faces of the bearing seats of idlers with different lengths and diameters by moving in the x and y directions within the plane range, and has a wide range of applications;

[0037] The concave surface measuring mechanism and the vernier caliper adopt a detachable connection method. The tightening force of the sleeve locking nut acts on the non-measuring surface, which does not affect the measuring precision of each jaw of the vernier caliper and the daily verification. During measurement, only the sleeve locking nut and the moving sleeve locking nut need to be fixed to achieve rapid measurement, and the disassembly and assembly are convenient and the use is flexible;

[0038] Copper gaskets are used to isolate the contact positions of the sliding parts of the present utility model to avoid scratching the main body part (sleeve) and affecting the measuring precision.

[0039] Although the embodiments and drawings of the present utility model are disclosed for the purpose of illustration, those skilled in the art can understand that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present utility model and the appended claims. Therefore, the scope of the present utility model is not limited to the content disclosed in the embodiments and drawings.

Claims

1. A measuring tool for measuring the end face of a idler bearing housing, comprising a vernier caliper, the vernier caliper including a caliper body, a fixed jaw fixedly installed at one end of the caliper body, and a movable jaw movably arranged on the caliper body, characterized in that: It further includes a concave surface measuring mechanism, and the concave surface measuring mechanism is installed on both the fixed jaw and the movable jaw; The concave surface measuring mechanism includes a sleeve and a movable measuring rod. A sleeve is sleeved on the bottoms of the fixed jaw and the movable jaw, and the sleeve is fixed between the fixed jaw and the movable jaw through a sleeve locking nut. A movable measuring rod is installed on the sleeve.

2. The measuring tool for measuring the end face of a idler bearing housing according to claim 1, characterized in that: The movable measuring rod includes a movable sleeve and a measuring rod body. A measuring rod body is horizontally arranged on one side of the movable sleeve. The movable sleeve is sleeved outside the sleeve and is positioned on the sleeve through a movable sleeve locking nut.

3. A measuring tool for measuring the end face of a idler bearing housing according to claim 2, characterized in that: The movable measuring rod further includes a gasket. A gasket is installed on the inner wall of the movable sleeve through a fastening screw, and the movable sleeve is positioned on the sleeve through a movable sleeve locking nut.

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