Tooth tip symmetry degree testing fixture for chain gear set

Abstract

The utility model discloses a sprocket gear set tooth top symmetry degree testing fixture, which comprises a fixture carrying seat and a wheel set carrying seat, the fixture carrying seat is provided with a sprocket tooth positioning mechanism and a gear tooth detection mechanism which are arranged on the periphery of the wheel set carrying seat and are oppositely arranged in the radial direction, and the sprocket tooth positioning mechanism comprises a sprocket tooth positioning block with telescopic displacement. The chain wheel tooth positioning block is provided with a chain wheel tooth limiting groove which is arranged in a shape similar to a chain wheel tooth, the gear tooth detection mechanism comprises a gear tooth detection arm with pivot displacement, and the gear tooth detection arm is provided with a gear tooth detection groove which is in a shape similar to a gear tooth. According to the utility model, the tooth top symmetry detection requirement of the chain gear set is met, and the rotation switching position detection is smooth and efficient. Smooth displacement switching and elastic floating positioning matching can be achieved, the detection efficiency is remarkably improved, the comprehensive switching position detection requirement is met, and the detection result is guaranteed. The gear tooth detection arm is skillfully matched with the sprocket tooth detection block, the detection tool is simple and ingenious in structure, and the manufacturing cost is effectively controlled.

Description

Technical Field

[0001] The utility model relates to a symmetry inspection tool for tooth tips of a sprocket gear set, belonging to the technical field of mechanical parts inspection equipment. Background Art

[0002] In the process of industrial production, a large number of mechanical parts inspections will occur, generally including size, inner and outer diameters, relative position and other inspections. Such inspections generally require the use of inspection equipment.

[0003] At present, there is a method for detecting a chain gear set in a forklift. The chain gear set includes a coaxially arranged sprocket and a gear, which are symmetrical structural parts. The tooth tips of the sprocket and the gear are required to have a high degree of symmetry, and it is difficult to detect them by traditional manual methods. In addition, when detecting them, it is not only necessary to perform a symmetry test on a pair of symmetrical tooth tips, but generally a symmetry test on all teeth is required. It is difficult to achieve the symmetry test on all teeth by traditional manual methods or wire-pulling alignment methods. Utility Model Content

[0004] The utility model aims to solve the above-mentioned deficiencies of the prior art, and proposes a sprocket gear set tooth tip symmetry inspection tool to solve the problem that it is difficult to inspect the tooth tip symmetry of a sprocket and a gear in a sprocket gear set.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A sprocket gear set tooth tip symmetry inspection tool, the sprocket gear set comprises a tubular shaft body with a tubular cavity, a sprocket and a gear axially spaced apart on the tubular shaft body, a plurality of sprocket teeth are arranged on the outer peripheral wall of the sprocket, and a plurality of gear teeth are arranged on the outer peripheral wall of the gear.

[0007] It includes a fixture carrier and a wheel set carrier with rotation displacement arranged on the fixture carrier,

[0008] The jig carrier is provided with a sprocket tooth positioning mechanism and a gear tooth detection mechanism which are arranged on the outer periphery of the wheel set mounting seat and are arranged radially opposite to each other.

[0009] The sprocket tooth positioning mechanism comprises a sprocket tooth positioning block which is capable of telescopic displacement along the radial direction of the sprocket, and the sprocket tooth positioning block is provided with a sprocket tooth limiting groove which is arranged in the same shape as the sprocket teeth.

[0010] The gear tooth detection mechanism comprises a gear tooth detection arm with pivot displacement, and the gear tooth detection arm is provided with a gear tooth detection groove which is shaped like the gear teeth.

[0011] Preferably, the wheel assembly mounting seat comprises a mounting body rotatably connected to the fixture mounting seat, and the mounting body is provided with a supporting platform and a positioning core shaft arranged on the supporting platform for cooperating with the tubular cavity.

[0012] Preferably, the carrier body and the fixture carrier are movably connected via a deep groove ball bearing.

[0013] Preferably, the sprocket tooth positioning mechanism comprises a slider seat for carrying the sprocket tooth positioning block, a stretching rod drivingly connected to the sprocket tooth positioning block, and a floating elastic member located in the slider seat and sleeved on the stretching rod.

[0014] Preferably, the stretching rod is a threaded rod detachably connected to the sprocket tooth positioning block, and a rotating handle is provided on the exposed end of the threaded rod.

[0015] Preferably, the gear tooth detection mechanism comprises a pivot carrier, and the gear tooth detection arm is pivotally connected to the pivot carrier.

[0016] Preferably, the jig carrier is provided with a groove for carrying the pivot carrier, and the pivot carrier has a linear adjustment displacement in the groove.

[0017] Preferably, a rocker arm hand-held portion is provided on the gear tooth detection arm.

[0018] The beneficial effects of the utility model are mainly reflected in:

[0019] 1. It meets the requirements for symmetry detection of the tooth tip of the sprocket gear set, and the rotation switching position detection is smooth and efficient.

[0020] 2. It can realize smooth displacement switching and elastic floating positioning, significantly improve the detection efficiency, meet the comprehensive switching position detection needs, and ensure the detection results.

[0021] 3. The gear tooth detection arm and the sprocket tooth detection block are cleverly matched, the inspection fixture structure is simple and clever, and the manufacturing cost is effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 The utility model is a structural schematic diagram of a sprocket gear set tooth tip symmetry inspection tool.

[0024] Figure 2 It is a structural schematic diagram of another viewing angle of the sprocket gear set tooth tip symmetry inspection tool of the utility model.

[0025] Figure 3 The utility model is a schematic diagram of the structure of the sprocket gear set tooth tip symmetry inspection tool in use state.

[0026] Figure 4 The utility model is a cross-sectional structural schematic diagram of the sprocket gear set tooth tip symmetry inspection tool in use state. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the relevant utility model are shown in the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0029] The utility model provides a sprocket gear set tooth tip symmetry inspection tool, such as Figure 3 and Figure 4 The sprocket gear set shown includes a tubular shaft body 200 with a tubular cavity 100, a sprocket 300 and a gear 400 axially spaced apart on the tubular shaft body 200, a plurality of sprocket teeth 310 are arranged on the outer peripheral wall of the sprocket 300, and a plurality of gear teeth 410 are arranged on the outer peripheral wall of the gear.

[0030] Specifically, the sprocket gear set is a symmetrical structural component, which requires radial relative accuracy between the sprocket teeth 310 and the gear teeth 140. It is difficult to achieve its symmetrical detection accuracy with a traditional fixture.

[0031] In this case, if Figures 1 to 4 As shown, it includes a jig carrier 1 and a wheel set mounting seat 2 with rotational displacement arranged on the jig carrier 1, and the jig carrier 2 is provided with a sprocket tooth positioning mechanism 3 and a gear tooth detection mechanism 4 which are arranged on the outer periphery of the wheel set mounting seat 2 and are arranged radially opposite to each other.

[0032] The sprocket tooth positioning mechanism 3 comprises a sprocket tooth positioning block 31 which is capable of telescopic displacement along the radial direction of the sprocket. The sprocket tooth positioning block 31 is provided with a sprocket tooth limiting groove 311 which is arranged in the same shape as the sprocket teeth.

[0033] The gear tooth detection mechanism 4 comprises a gear tooth detection arm 41 with pivotal displacement, and a gear tooth detection groove 411 having a shape similar to the gear tooth is provided on the gear tooth detection arm.

[0034] Specific implementation process and principle description:

[0035] When performing the sprocket gear group inspection operation, the sprocket gear group is first mounted on the wheel group mounting seat 2, and the sprocket tooth limiting groove 311 is positioned and matched with the sprocket teeth through the telescopic reset of the stretched sprocket tooth positioning block 31. At this time, the sprocket gear group is limited and fixed. During the inspection operation, the relative position of the current gear teeth and the gear tooth detection groove 411 is detected through the pivot displacement of the gear tooth detection arm 41. When the gear tooth detection groove 411 can be displaced to match the gear teeth, the inspection is qualified, otherwise the inspection is unqualified.

[0036] After the current sprocket teeth are detected, the sprocket teeth positioning block 31 is stretched and disengaged, and the rotating sprocket gear set is rotated to switch the sprocket teeth for further detection, thus satisfying the requirement of smooth switching detection of all sprocket teeth.

[0037] In a specific embodiment, the wheel assembly carrier 2 includes a carrier body 21 rotatably connected to the fixture carrier, and the carrier body 21 is provided with a support platform 211 and a positioning core shaft 212 arranged on the support platform for matching with the tubular cavity 100.

[0038] This satisfies the requirement for the concentricity of the positioning rotation of the sprocket gear set.

[0039] In a specific embodiment, the carrier body 21 and the fixture carrier 1 are movably connected via a deep groove ball bearing 22 .

[0040] This satisfies the requirement for smooth rotation of the switching position.

[0041] In a specific embodiment, the sprocket tooth positioning mechanism 3 includes a slider seat 32 for carrying the sprocket tooth positioning block, a stretching rod 33 drivingly connected to the sprocket tooth positioning block, and a floating elastic member 34 located in the slider seat and sleeved on the stretching rod.

[0042] Specifically, when the sprocket gear set is loaded, the pulling of the stretching rod 33 facilitates loading and rotation unlocking, and when the sprocket teeth are rotated to the position, the stretching rod 33 is loosened to meet the matching positioning requirements. The operation is convenient and smooth.

[0043] In a specific embodiment, the stretching rod 33 is a threaded rod detachably connected to the sprocket tooth positioning block, and a rotating handle 331 is provided on the exposed end of the threaded rod.

[0044] Specifically, firstly, there are certain differences in specifications and diameters of the sprocket teeth, so the sprocket tooth positioning block can be easily replaced through the threaded rod, and at the same time, a certain radial matching stroke can be adjusted through the screwing stroke, thereby improving the versatility of the fixture and a higher utilization rate.

[0045] In a specific embodiment, the gear tooth detection mechanism 4 includes a pivot carrier 42 , and the gear tooth detection arm is pivotally coupled to the pivot carrier 42 .

[0046] The pivot support 42 satisfies the requirement of mounting the elevated pivot of the gear tooth detection arm.

[0047] In a specific embodiment, the fixture carrier 1 is provided with a groove 11 for carrying the pivot carrier, and the pivot carrier has a linear adjustment displacement in the groove.

[0048] That is, the position adjustment requirements of the pivot carrier 42 are met through the strip groove 11, and the adaptation adjustment requirements of gears with different diameter specifications are met.

[0049] In a specific embodiment, a rocker arm hand-held portion 43 is provided on the gear tooth detection arm 41 .

[0050] The rocker arm handle 43 facilitates manual driving of the gear tooth detection arm 41 , and can adopt a knurled knob or other design to meet the requirements of mounting and operation.

[0051] From the above description, it can be found that the utility model of the sprocket gear set tooth tip symmetry inspection fixture meets the sprocket gear set tooth tip symmetry inspection requirements, and the rotation switching position inspection is smooth and efficient. It can achieve smooth displacement switching and elastic floating positioning coordination, and the inspection efficiency is significantly improved, meeting the comprehensive switching position inspection requirements, and the inspection results are guaranteed. The gear tooth inspection arm and the sprocket tooth inspection block are cleverly matched, the inspection fixture structure is simple and clever, and the manufacturing cost is effectively controlled.

[0052] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus / device.

[0053] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A sprocket gear set tooth tip symmetry inspection tool, the sprocket gear set comprising a tubular shaft body with a tubular cavity, a sprocket and a gear axially spaced apart on the tubular shaft body, a plurality of sprocket teeth being arranged on the outer peripheral wall of the sprocket, and a plurality of gear teeth being arranged on the outer peripheral wall of the gear, characterized in that: It includes a fixture carrier and a wheel set carrier with rotation displacement arranged on the fixture carrier, The jig carrier is provided with a sprocket tooth positioning mechanism and a gear tooth detection mechanism which are arranged on the outer periphery of the wheel set mounting seat and are arranged radially opposite to each other. The sprocket tooth positioning mechanism comprises a sprocket tooth positioning block which is capable of telescopic displacement along the radial direction of the sprocket, and the sprocket tooth positioning block is provided with a sprocket tooth limiting groove which is arranged in the same shape as the sprocket teeth. The gear tooth detection mechanism comprises a gear tooth detection arm with pivot displacement, and the gear tooth detection arm is provided with a gear tooth detection groove which is shaped like the gear teeth.

2. The sprocket gear set tooth tip symmetry inspection tool according to claim 1, characterized in that: The wheel set carrier includes a carrier body that is rotatably connected to the fixture carrier, and the carrier body is provided with a support platform and a positioning core shaft arranged on the support platform for matching with the tube cavity.

3. The sprocket gear set tooth tip symmetry inspection tool according to claim 2, characterized in that: The carrier body and the fixture carrier are movably connected via a deep groove ball bearing.

4. The sprocket gear set tooth tip symmetry inspection tool according to claim 1, characterized in that: The sprocket tooth positioning mechanism comprises a slider seat for carrying the sprocket tooth positioning block, a stretching rod drivingly connected to the sprocket tooth positioning block, and a floating elastic member located in the slider seat and sleeved on the stretching rod.

5. The sprocket gear set tooth tip symmetry inspection tool according to claim 4, characterized in that: The stretching rod is a threaded rod detachably connected to the sprocket tooth positioning block, and a rotating handle is provided on the exposed end of the threaded rod.

6. The sprocket gear set tooth tip symmetry inspection tool according to claim 1, characterized in that: The gear tooth detection mechanism comprises a pivot bearing seat, and the gear tooth detection arm is pivotally connected to the pivot bearing seat.

7. The sprocket gear set tooth tip symmetry inspection tool according to claim 6, characterized in that: The fixture carrier is provided with a bar groove for carrying the pivot carrier, and the pivot carrier has a linear adjustment displacement in the bar groove.

8. The sprocket gear set tooth tip symmetry inspection tool according to claim 6, characterized in that: The gear tooth detection arm is provided with a rocker arm hand-held part.

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