Dimension testing fixture for testing middle slotted hole seat

Abstract

The utility model discloses a size testing fixture for testing a middle slot seat. The device comprises a plate, a pin, a bolt and a gasket, two through holes are symmetrically formed in the plate, and the center connecting line of the two through holes is parallel to the length direction of the plate; the pin is an internal thread pin, the tail end of the bolt penetrates through a through hole in the plate and is in threaded connection with the pin, and a gasket is arranged between the bolt and the plate. According to the utility model, the inspection of the size of the middle slot seat can be efficiently completed with a simple structure and an easy-to-operate method.

Description

Technical Field

[0001] The utility model relates to the field of scraper conveyors, in particular to a size inspection tool for inspecting a middle slot hole seat. Background Art

[0002] As a transportation equipment for coal mine working faces, the scraper conveyor not only transports coal, but also serves as the running track of the coal mining machine and the sliding fulcrum of the hydraulic support.

[0003] When the scraper conveyor is used as the running track of the coal mining machine, the conveying trough is the bearing part of the coal, and the scraper is fixed on the chain to form a scraper chain, which becomes a traction component. When the transmission part of the head is started, it drives the sprocket on the head shaft to rotate, so that the scraper chain circulates and drives the coal to move along the conveying trough until it reaches the head and is unloaded. The scraper chain bypasses the sprocket and circulates to complete the coal transportation.

[0004] The conveying trough of the scraper conveyor is made up of multiple middle troughs connected together, and is the main component of the scraper conveyor. The pin rail is the rack rail, which is the support of the coal mining machine. A rack rail seat is welded on the trough side of the middle trough. The rack rail is fixed on the rack rail seat through the rack rail pin. The positioning size between the two holes on the rack rail seat is crucial to the installation accuracy of the rack rail. Traditional inspection methods require the use of tools such as tape measures and calipers. This detection method is not accurate, difficult to operate, and inefficient. A complete machine has more than one hundred middle troughs, and the inspection workload is relatively large. Summary of the invention

[0005] The utility model aims to overcome the deficiencies of the prior art and provides a size inspection tool for inspecting a middle slot hole seat, which can efficiently complete the inspection of the size of the middle slot hole seat with a simple structure and an easy-to-operate method.

[0006] In order to achieve the above objectives, the utility model proposes the following technical solutions:

[0007] A size inspection tool for inspecting a middle slotted hole seat comprises a plate, a pin, a bolt and a washer. The plate is symmetrically provided with two through holes, and the center line of the two through holes is parallel to the length direction of the plate. The pin is an internal threaded pin, and the end of the bolt passes through the through hole on the plate and is threadedly connected to the pin. A washer is provided between the bolt and the plate.

[0008] Preferably, the pin is a stepped pin, and the diameter of the non-threaded end of the pin changes from large to small from inside to outside.

[0009] Preferably, the tolerance of the through hole on the plate is an upper tolerance of +0.1 and a lower tolerance of 0, and the size tolerance of the pin is an upper tolerance of 0 and a lower tolerance of -0.1, which further improves the reliability of the inspection.

[0010] Preferably, the plate includes a base plate and a free plate, and the base plate and the free plate are detachably connected. Two through holes are respectively arranged on the base plate and the free plate, which is convenient for replacing the free plate. Each free plate has the same width and different lengths. Different free plates correspond to different hole spacings. The free plate can be replaced according to different hole spacings, and the spacing between the two pins is made to correspond to the hole spacing.

[0011] Preferably, two first plug holes extending along the length direction of the plate are provided on one side where the base plate is docked with the free plate, and the first plug holes are respectively arranged on the upper side and the lower side of the base plate, and pop-up holes are respectively provided on the upper side and the lower side of the base plate, the pop-up hole on the upper side opens upward, and the pop-up hole on the lower side opens downward, and the pop-up holes extend along the width direction of the plate, the pop-up hole on the upper side communicates with the first plug hole on the upper side, and the pop-up hole on the lower side communicates with the first plug hole on the lower side; two buckle blocks extending along the length direction of the plate are provided on one side where the free plate is docked with the base plate, and the buckle blocks are connected to the first plug holes Correspondingly; a built-in hole is opened on the buckle block, corresponding to the pop-up hole; the plate also includes a spring buckle, the spring buckle includes a pop-up body and a spring, the size of the pop-up body is adapted to the built-in hole, the pop-up body can move up and down along the built-in hole, the pop-up body is connected to the inner bottom surface of the built-in hole of the buckle block through the spring, the spring buckle can be hidden in the built-in hole under the action of external force without leaking out, in the absence of external force, the pop-up body extends out of the built-in hole under the action of the spring, and when the built-in hole is aligned with the pop-up hole, the pop-up body extends from the built-in hole under the action of the spring and is stuck in the pop-up hole.

[0012] When the buckle block needs to be inserted into the first insertion hole, the spring buckle is pressed into the built-in hole, and the buckle block gradually extends into the first insertion hole. When the built-in hole is aligned with the pop-up hole, the pop-up body extends from the built-in hole and snaps into the pop-up hole under the action of the spring, thereby realizing the detachable connection between the base plate and the free plate.

[0013] When replacement is needed, only the spring buckle is pressed into the built-in hole with external force, and the free plate is pulled outward to separate the free plate and the base plate, and then a more suitable free plate is replaced, so it is easy to operate and replace.

[0014] Preferably, a second socket is provided between the two first sockets on the base plate, and the second socket extends along the length direction of the plate. An insertion block is provided between the two snap blocks of the free plate, and the insertion block corresponds to the second socket. When the base plate and the free plate are connected, the insertion block is inserted into the second socket, thereby further ensuring the stability of the connection between the base plate and the free plate.

[0015] When in use, just replace the rack pins with two pins and pass them horizontally through the hole seat of the middle slot. If they pass through smoothly without any obstacles, the hole seat of the middle slot is qualified. If they cannot pass through smoothly, further inspection is required.

[0016] The beneficial effects of the utility model are:

[0017] The utility model determines the size of the middle slot hole seat by arranging two pins on the plate and setting the distance between the two pins, and has a simple structure and is easy to operate.

[0018] The utility model connects the pin and the plate by thread, so that the disassembly of the pin is convenient, and the size of the pin is adjusted so that the pin corresponds to the hole diameter on the middle slot hole seat, thereby further ensuring the accuracy of the inspection result.

[0019] The utility model can be used for middle slot hole seats with different hole diameters and the same hole spacing by arranging the step pins, and has wide applicability.

[0020] The utility model is formed by detachably connecting the base plate and the free plate to form a plate, which is convenient for replacing different free plates and is suitable for detecting hole seats with different hole spacings.

[0021] By adopting the above scheme, the utility model can efficiently complete the inspection of the size of the middle slot seat with a simple structure and an easy-to-operate method, thereby improving the inspection speed and having strong operability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a schematic structural diagram of the first embodiment.

[0024] Figure 2 yes Figure 1 Sectional view at AA.

[0025] Figure 3 It is a schematic structural diagram of the second embodiment.

[0026] Figure 4 yes Figure 3 Sectional view at CC.

[0027] Figure 5 4 is a schematic structural diagram of the third embodiment.

[0028] Figure 6 yes Figure 5 Cross-sectional view at BB in the middle.

[0029] Figure 7 It is a structural diagram of the base plate.

[0030] Figure 8 It is a structural diagram of the free board.

[0031] In the figure, 1-plate, 2-pin, 3-bolt, 4-washer, 11-base plate, 12-free plate, 111-pop-up hole, 112-first plug hole, 113-second plug hole, 121-clip block, 122-built-in hole, 123-insertion block, 13-spring buckle, 131-pop-up body, 132-spring. Implementation

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] First embodiment:

[0037] like Figure 1~2 As shown, a size inspection tool for inspecting a middle slotted hole seat comprises a plate 1, a pin 2, a bolt 3 and a washer 4. The plate 1 is symmetrically provided with two through holes, and the center line of the two through holes is parallel to the length direction of the plate 1; the pin 2 is an internal threaded pin, and the end of the bolt 3 passes through the through hole on the plate 1 and is threadedly connected to the pin 2, and a washer 4 is provided between the bolt 3 and the plate 1.

[0038] Second embodiment:

[0039] like Figure 3~4 As shown, a size inspection tool for inspecting a middle slotted hole seat comprises a plate 1, a pin 2, a bolt 3 and a washer 4. The plate 1 is symmetrically provided with two through holes, and the center line of the two through holes is parallel to the length direction of the plate 1; the pin 2 is an internal threaded pin, and the end of the bolt 3 passes through the through hole on the plate 1 and is threadedly connected to the pin 2, and a washer 4 is provided between the bolt 3 and the plate 1.

[0040] The pin 2 is a stepped pin, and the diameter of the non-threaded end of the pin 2 changes from large to small from the inside to the outside.

[0041] Third embodiment:

[0042] like Figures 5 to 8 As shown, a size inspection tool for inspecting a middle slotted hole seat comprises a plate 1, a pin 2, a bolt 3 and a washer 4. The plate 1 is symmetrically provided with two through holes, and the center line of the two through holes is parallel to the length direction of the plate 1; the pin 2 is an internal threaded pin, and the end of the bolt 3 passes through the through hole on the plate 1 and is threadedly connected to the pin 2, and a washer 4 is provided between the bolt 3 and the plate 1.

[0043] The plate 1 includes a base plate 11 and a free plate 12, and the base plate 11 and the free plate 12 are detachably connected. Two through holes are respectively arranged on the base plate 11 and the free plate 12, which is convenient for replacing the free plate 12. Each free plate 12 has the same width and different lengths. Different free plates 12 correspond to different hole spacings. The free plate 12 can be replaced according to different hole spacings, and the spacing between the two pins is made to correspond to the hole spacing.

[0044] The side where the base plate 11 and the free plate 12 are connected is provided with two first plug holes 112 extending along the length direction of the plate 1, and the first plug holes 112 are respectively arranged on the upper side and the lower side of the base plate 11, and the upper side and the lower side of the base plate 11 are respectively provided with pop-up holes 111, the pop-up hole 111 on the upper side opens upward, and the pop-up hole 111 on the lower side opens downward, and the pop-up hole 111 extends along the width direction of the plate 1, the pop-up hole 111 on the upper side communicates with the first plug hole 112 on the upper side, and the pop-up hole 111 on the lower side communicates with the first plug hole 112 on the lower side; the side where the free plate 12 and the base plate 11 are connected is provided with two buckle blocks 121 extending along the length direction of the plate 1, corresponding to the first plug holes 112; the buckle blocks 121 are provided with A built-in hole 122 is opened, corresponding to the pop-up hole 111; the plate 1 also includes a spring buckle 13, the spring buckle 13 includes a pop-up body 131 and a spring 132, the size of the pop-up body 131 is adapted to the built-in hole 122, the pop-up body 131 can move up and down along the built-in hole 122, the pop-up body 131 is connected to the inner bottom surface of the built-in hole 122 of the buckle block 121 through the spring 132, the spring buckle 13 can be hidden in the built-in hole 122 under the action of external force without leaking out, in the absence of external force, the pop-up body 131 extends out from the built-in hole 122 under the action of the spring, and when the built-in hole 122 is aligned with the pop-up hole 111, the pop-up body 131 extends from the built-in hole 122 under the action of the spring 132 and snaps into the pop-up hole 111.

[0045] When the buckle block 121 needs to be inserted into the first insertion hole 112, the spring buckle 13 is pressed and hidden in the built-in hole 122, and the buckle block 121 gradually extends into the first insertion hole 112. When the built-in hole 122 is aligned with the pop-up hole 111, the pop-up body 131 extends from the built-in hole 122 under the action of the spring 132 and snaps into the pop-up hole 111, thereby realizing the detachable connection between the base plate 11 and the free plate 12, and facilitating operation and replacement.

[0046] Fourth embodiment:

[0047] like Figures 5 to 8 As shown, a size inspection tool for inspecting a middle slotted hole seat comprises a plate 1, a pin 2, a bolt 3 and a washer 4. The plate 1 is symmetrically provided with two through holes, and the center line of the two through holes is parallel to the length direction of the plate 1; the pin 2 is an internal threaded pin, and the end of the bolt 3 passes through the through hole on the plate 1 and is threadedly connected to the pin 2, and a washer 4 is provided between the bolt 3 and the plate 1.

[0048] The plate 1 includes a base plate 11 and a free plate 12, and the base plate 11 and the free plate 12 are detachably connected. Two through holes are respectively arranged on the base plate 11 and the free plate 12, which is convenient for replacing the free plate 12. Each free plate 12 has the same width and different lengths. Different free plates 12 correspond to different hole spacings. The free plate 12 can be replaced according to different hole spacings, and the spacing between the two pins is made to correspond to the hole spacing.

[0049] The side where the base plate 11 and the free plate 12 are connected is provided with two first plug holes 112 extending along the length direction of the plate 1, and the first plug holes 112 are respectively arranged on the upper side and the lower side of the base plate 11, and the upper side and the lower side of the base plate 11 are respectively provided with pop-up holes 111, the pop-up hole 111 on the upper side opens upward, and the pop-up hole 111 on the lower side opens downward, and the pop-up hole 111 extends along the width direction of the plate 1, the pop-up hole 111 on the upper side communicates with the first plug hole 112 on the upper side, and the pop-up hole 111 on the lower side communicates with the first plug hole 112 on the lower side; the side where the free plate 12 and the base plate 11 are connected is provided with two buckle blocks 121 extending along the length direction of the plate 1, corresponding to the first plug holes 112; the buckle blocks 121 are provided with A built-in hole 122 is opened, corresponding to the pop-up hole 111; the plate 1 also includes a spring buckle 13, the spring buckle 13 includes a pop-up body 131 and a spring 132, the size of the pop-up body 131 is adapted to the built-in hole 122, the pop-up body 131 can move up and down along the built-in hole 122, the pop-up body 131 is connected to the inner bottom surface of the built-in hole 122 of the buckle block 121 through the spring 132, the spring buckle 13 can be hidden in the built-in hole 122 under the action of external force without leaking out, in the absence of external force, the pop-up body 131 extends out from the built-in hole 122 under the action of the spring, and when the built-in hole 122 is aligned with the pop-up hole 111, the pop-up body 131 extends from the built-in hole 122 under the action of the spring 132 and snaps into the pop-up hole 111.

[0050] When the buckle block 121 needs to be inserted into the first insertion hole 112, the spring buckle 13 is pressed and hidden in the built-in hole 122, and the buckle block 121 gradually extends into the first insertion hole 112. When the built-in hole 122 is aligned with the pop-up hole 111, the pop-up body 131 extends from the built-in hole 122 under the action of the spring 132 and snaps into the pop-up hole 111, thereby realizing the detachable connection between the base plate 11 and the free plate 12, and facilitating operation and replacement.

[0051] A second socket 113 is provided between the two first sockets 112 on the base plate 11, and the second socket 113 extends along the length direction of the plate 1. An insertion block 123 is provided between the two snap blocks 121 of the free plate 12, and the insertion block 123 corresponds to the second socket 113. When the base plate 11 and the free plate 12 are connected, the insertion block 123 is inserted into the second socket 113, further ensuring the stability of the connection between the base plate 11 and the free plate 12.

[0052] The above are only preferred embodiments of the present invention and are 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 size inspection tool for inspecting a middle slot seat, comprising a plate, wherein two through holes are symmetrically arranged on the plate, and the center line of the two through holes is parallel to the length direction of the plate, characterized in that: It also includes a pin, a bolt and a washer, the pin is an internal threaded pin, the end of the bolt passes through a through hole on the plate and is threadedly connected to the pin, a washer is arranged between the bolt and the plate, the plate includes a base plate and a free plate, the base plate and the free plate are detachably connected, and two through holes are respectively arranged on the base plate and the free plate.

2. A size inspection tool for inspecting a middle slot seat according to claim 1, characterized in that: The pin is a stepped pin, and the diameter of the end of the pin without threads changes from large to small from the inside to the outside.

3. A size inspection tool for inspecting a middle slot seat according to claim 1, characterized in that: The base plate is provided with two first plug holes extending along the length direction of the plate on one side where the base plate is connected to the free plate, and the first plug holes are respectively arranged on the upper side and the lower side of the base plate, and pop-up holes are respectively arranged on the upper side and the lower side of the base plate, the pop-up hole on the upper side opens upward, and the pop-up hole on the lower side opens downward, and the pop-up holes extend along the width direction of the plate, the pop-up hole on the upper side communicates with the first plug hole on the upper side, and the pop-up hole on the lower side communicates with the first plug hole on the lower side; the free plate is provided with two buckle blocks extending along the length direction of the plate on one side where the first plug holes are connected to the base plate, and the buckle blocks are connected to the first plug holes on the lower side. The buckle block is provided with a built-in hole corresponding to the pop-up hole; the plate also includes a spring buckle, which includes a pop-up body and a spring, the size of the pop-up body is adapted to the built-in hole, and the pop-up body can move up and down along the built-in hole; the pop-up body is connected to the built-in hole of the buckle block through the spring, the spring buckle can be hidden in the built-in hole under the action of external force, and the pop-up body extends out of the built-in hole under the action of the spring when there is no external force, and when the built-in hole is aligned with the pop-up hole, the pop-up body extends from the built-in hole and is stuck in the pop-up hole under the action of the spring.

4. A size inspection tool for inspecting a middle slot seat according to claim 3, characterized in that: A second plug hole is provided between the two first plug holes on the base plate, and the second plug hole extends along the length direction of the plate. An insertion block is provided between the two buckle blocks of the free plate, and the insertion block corresponds to the second plug hole.

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