A chain pitch measuring device

Abstract

The utility model discloses a kind of chain plate hole center distance measuring devices, more specifically chain plate measuring technical field, including bottom plate, four self-locking wheels are respectively fixedly installed in bottom plate bottom end four corners, four supporting rods are symmetrically fixedly installed in bottom plate top end four corners, four supporting rods top end are jointly fixedly connected with top plate, rotating assembly is provided on the top plate, the middle part of the bottom plate top end is located on the top plate upside and is provided with limit component, measuring assembly is provided on the limit component.The utility model discloses a kind of chain plate hole center distance measuring devices, by setting rotating assembly to long string chain plate is straightened, avoid in measuring component measurement process, due to long string chain plate bending deformation leads to measurement error, ensure that chain plate is in ideal straight line state in measurement process, to improve measurement precision and the stability of measuring device, chain plate hole center distance can be accurately, quickly measured, improve detection efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of chain plate measurement technology, and in particular to a chain plate hole center distance measuring device. Background Technology

[0002] In the field of mechanical transmission, chain plates are widely used as important transmission components. For example, in conveyor chains and transmission chains, the performance of the chain plates directly affects the operating efficiency and stability of the entire mechanical system. The center distance of the holes on the chain plate (hereinafter referred to as hole center distance) is one of the key parameters of the chain plate, and its precision requirements are extremely high. The accuracy of the hole center distance is directly related to the assembly accuracy of the chain plate with other components and the smoothness of transmission.

[0003] Chinese Patent No. CN222165964U discloses a device for measuring the center distance of chain plate holes. The technical solution adopted by this utility model includes a base main structure. A fixed measuring seat is located on the upper left side of the base main structure, and a movable measuring seat is located on the upper right side of the base main structure. Two cylindrical sliding mating rods, distributed front to back, are located on the right side of the fixed measuring seat. The sliding mating rods pass through the movable measuring seat, and a dial indicator mating seat is connected to the right side of the sliding mating rods. The dial indicator mating seat can be connected to a dial indicator. An elastic component is provided between the fixed measuring seat and the movable measuring seat. The advantages of this device are: it allows for movable measurement using tools, and the use of the sliding measuring structure and dial indicator during measurement ensures that the measurement is not inaccurate due to different operator techniques.

[0004] In actual use, when individual chain plates are strung together, their long size makes it difficult to achieve precise positioning on the measuring equipment. Due to their own weight and the flexibility of the chain plates after being strung together, they are prone to shaking and shifting during the measurement process, which seriously affects the measurement accuracy. Utility Model Content

[0005] The main purpose of this utility model is to provide a chain plate hole center distance measuring device, which can effectively solve the problems mentioned above.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A chain plate hole center distance measuring device includes a base plate, four self-locking wheels are fixedly installed at the four corners of the bottom end of the base plate, four support rods are symmetrically fixedly installed at the four corners of the top end of the base plate, and a top plate is fixedly connected to the top ends of the four support rods. A rotating assembly is provided on the top plate, and a limiting assembly is provided at the middle of the top end of the base plate above the top plate. A measuring assembly is provided on the limiting assembly.

[0008] Preferably, the rotating assembly includes a fixed hanger, a sliding hanger, and two rotating seats. The two fixed hangers are symmetrically fixedly installed at the upstream and downstream ends of the top of the top plate. Two rotating rollers are horizontally rotatably installed in the inner cavities of the two fixed hangers respectively. The rotating seats are fixedly installed at the downstream end of the top of the top plate. A servo motor is fixedly connected to the width-direction end face of the upstream rotating seat. The output of the servo motor is fixedly connected to the rotating shaft of the upstream rotating roller through a coupling.

[0009] Preferably, two sliding grooves are symmetrically opened through both ends of the fixed hanger in the height direction, and two guide rods are vertically fixedly installed in the inner cavity of each of the two sliding grooves. Two springs are respectively sleeved on the outer surface of each of the two guide rods, and the top of the sliding hanger is vertically slidably installed in the middle of the top of the fixed hanger in the horizontal direction.

[0010] Preferably, the two ends of the sliding hanger that are far apart from each other are slidably connected to the two guide rods respectively, and the two ends of the two springs respectively abut against the top of the inner cavity of the two slide grooves and the two ends of the sliding hanger that are far apart from each other. A pressure roller is rotatably installed between the vertically close end faces of the sliding hanger, and the pressure roller is parallel and aligned with the upstream rotating roller.

[0011] Preferably, the limiting component includes a gantry frame and a crank handle. The two bottom ends of the gantry frame in the vertical direction are fixedly connected to the middle of the top of the base plate. The top of the gantry frame in the horizontal direction is located at the upper part of the top plate. Two connecting blocks are symmetrically installed on the two sides of the top of the gantry frame in the horizontal direction away from the middle. A guide groove is provided through the middle of the top of the gantry frame.

[0012] Preferably, a left-hand and right-hand lead screw is rotatably installed between the two connecting blocks. The threads on the outer surfaces of the left-hand and right-hand lead screws on both sides away from the center are arranged in opposite directions. Two threaded female parts that slide against the inner surface of the guide groove are threaded on the two sides of the left-hand and right-hand lead screws away from the center. Two L-shaped connecting rods are fixedly installed at the bottom ends of the two threaded female parts respectively. Two limiting walls are fixedly installed on the end faces of the two L-shaped connecting rods that are close to each other. The crank handle is eccentrically and fixedly connected to the rotation shaft of the left-hand and right-hand lead screws.

[0013] Preferably, the measuring component includes multiple sliding frames, which are slidably mounted on the tops of the two limiting walls. A fixing rod is fixedly mounted on the opposite surface of one sliding frame near the other sliding frame. A slip ring is slidably mounted on the outer surface of each fixing rod, and a pointer is fixedly connected to the lower side of the outer surface of each slip ring.

[0014] Preferably, multiple magnifying lenses are installed through the middle of the top of the multiple sliding frames, and the tops of the two limiting walls are respectively provided with a scale.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model straightens long chain plates by setting a rotating component, avoiding measurement errors caused by bending and deformation of the long chain plates during the measurement process of the measuring component. It ensures that the chain plates are in an ideal straight state during the measurement process, thereby improving the measurement accuracy and stability of the measuring device. It can accurately and quickly measure the center distance of the chain plate holes, improving the detection efficiency and quality.

[0017] 2. This utility model limits the two sides of the long chain plate by setting a limiting component, which avoids measurement errors caused by the tilt of the long chain plate and ensures that the chain plate maintains a stable position and posture during the measurement process, providing a reliable guarantee for accurate measurement of the hole center distance.

[0018] 3. In this utility model, the rotating component can also convey long chain plates. When the long chain plates are long, the measuring component can perform local measurements on the long chain plates in segments by conveying them through the rotating component. This segmented measurement method effectively reduces the requirements for the specifications of the measuring equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the top plate and the rotating assembly in this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged view of node B in the middle;

[0022] Figure 4 This is a schematic diagram of the connection structure of the limiting component in this utility model;

[0023] Figure 5 This utility model Figure 1 A magnified view of node A in the middle.

[0024] In the diagram: 1. Base plate; 2. Self-locking wheel; 3. Support rod; 4. Top plate; 5. Rotating assembly; 51. Rotating seat; 52. Rotating roller; 53. Fixed hanger; 531. Slide groove; 532. Guide rod; 533. Spring; 54. Sliding hanger; 55. Pressure roller; 56. Servo motor; 6. Limiting assembly; 61. Gantry frame; 62. Connecting block; 63. Guide groove; 64. Left and right spiral screw; 65. Screw nut; 66. L-shaped connecting rod; 67. Handle; 68. Limiting wall; 7. Measuring assembly; 71. Slide frame; 711. Magnifying lens; 72. Fixed rod; 73. Slip ring; 74. Pointer. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1-5 As shown, a chain plate hole center distance measuring device includes a base plate 1, four self-locking wheels 2 are fixedly installed at the four corners of the bottom end of the base plate 1, four support rods 3 are symmetrically fixedly installed at the four corners of the top end of the base plate 1, and a top plate 4 is fixedly connected to the top end of the four support rods 3. A rotating component 5 is provided on the top plate 4, and a limiting component 6 is provided at the middle of the top end of the base plate 1 on the upper side of the top plate 4. A measuring component 7 is provided on the limiting component 6.

[0027] In practical use, after placing the long chain plate on the top plate 4, the rotating component 5 is used to straighten the long chain plate, avoiding measurement errors caused by bending and deformation of the long chain plate during the measurement process of the measuring component 7. This ensures that the chain plate is in an ideal straight state during the measurement process. The limiting component 6 is used to limit the two sides of the long chain plate to avoid measurement errors caused by tilting of the long chain plate, ensuring that the chain plate always maintains a stable position and posture during the measurement process.

[0028] In addition, the rotating component 5 can also convey long chain plates. When the long chain plates are long, the measuring component 7 can perform local measurements on the long chain plates in segments by conveying them through the rotating component 5. This segmented measurement method effectively reduces the requirements for the specifications of the measuring equipment.

[0029] Specifically, the rotating assembly 5 includes a fixed hanger 53, a sliding hanger 54, and two rotating seats 51. The two fixed hangers 53 are symmetrically fixedly installed at the upper and lower ends of the top of the top plate 4. Two rotating rollers 52 are horizontally rotatably installed in the inner cavity of the two fixed hangers 53 respectively. The rotating seats 51 are fixedly installed at the lower end of the top of the top of the top plate 4. A servo motor 56 is fixedly connected to the end face of the uppermost rotating seat 51 in the width direction. The output of the servo motor 56 is fixedly connected to the rotating shaft of the uppermost rotating roller 52 through a coupling.

[0030] Two sliding grooves 531 are symmetrically opened through both ends of the fixed hanger 53 in the height direction. Two guide rods 532 are vertically fixedly installed in the inner cavity of the two sliding grooves 531 respectively. Two springs 533 are respectively sleeved on the outer surface of the two guide rods 532. The top of the sliding hanger 54 is vertically slidably installed through the middle of the top of the fixed hanger 53 in the horizontal direction.

[0031] The two ends of the sliding hanger 54 that are far apart from each other are slidably connected to two guide rods 532 respectively. The two ends of the two springs 533 respectively abut against the top of the inner cavity of the two slide grooves 531 and the two ends of the sliding hanger 54 that are far apart from each other. The sliding hanger 54 is rotatably installed between the vertically close end faces of the sliding hanger 54. The pressure roller 55 is parallel and aligned with the uppermost rotating roller 52.

[0032] The downstream end of the long chain plate is clamped between the upstream rotating roller 52 and the pressure roller 55. The tension of the two springs 533 pushes the sliding hanger 54 to drive the pressure roller 55 to clamp the long chain plate. When the servo motor 56 is started, the servo motor 56 drives the downstream of the long chain plate to be conveyed, thereby straightening the long chain plate and avoiding measurement errors caused by bending and deformation of the long chain plate, ensuring that the chain plate is in an ideal straight state during the measurement process.

[0033] After measuring the long chain plate by measuring component 7, servo motor 56 is started. Servo motor 56 drives upstream rotating roller 52 to transport the measured long chain plate away from top plate 4, and then the long chain plate at the new end is measured again.

[0034] Specifically, the limiting component 6 includes a gantry frame 61 and a crank handle 67. The two bottom ends of the gantry frame 61 are fixedly connected to the top center of the base plate 1 in the vertical direction. The top of the gantry frame 61 in the horizontal direction is located on the top plate 4. Two connecting blocks 62 are symmetrically installed on the two sides of the top of the gantry frame 61 away from the center. A guide groove 63 is opened through the middle of the top of the gantry frame 61.

[0035] A left-hand and right-hand lead screw 64 is rotatably installed between two connecting blocks 62. The threads on the outer surfaces of the left-hand and right-hand lead screw 64 on both sides away from the middle are arranged in opposite directions. Two threaded parts 65 that slide against the inner surface of the guide groove 63 are threaded on the two sides of the left-hand and right-hand lead screw 64 away from the middle. Two L-shaped connecting rods 66 are fixedly installed at the bottom ends of the two threaded parts 65 respectively. Two limiting walls 68 are fixedly installed on the end faces of the two L-shaped connecting rods 66 that are close to each other. The crank handle 67 is eccentrically fixedly connected to the rotation shaft of the left-hand and right-hand lead screw 64.

[0036] When the crank handle 67 is turned clockwise, the crank handle 67 drives the left and right rotating screws 64 to turn clockwise, causing the screw nuts 65 on both sides of the outer surface of the left and right rotating screws 64 to slide closer to each other along the guide groove 63. The two screw nuts 65 slide closer to each other and then drive the two limiting walls 68 to move closer to each other through the two L-shaped connecting rods 66. The two limiting walls 68 can move closer or further apart according to the specifications of the chain plate to limit them and prevent the long chain plate from deviating.

[0037] Furthermore, the measuring component 7 includes multiple sliding frames 71, which are slidably mounted on the top of two limiting walls 68 respectively. On the opposite surface of one sliding frame 71 near the other sliding frame 71, a fixing rod 72 is fixedly mounted. Slip rings 73 are slidably mounted on the outer surface of each fixing rod 72, and pointers 74 are fixedly connected to the lower side of the outer surface of each slip ring 73.

[0038] Multiple sliding frames 71 have multiple magnifying lenses 711 installed through the middle of their tops, and two limiting walls 68 have scales installed at their tops.

[0039] Slide the slide frame 71 separately so that the pointer 74 on the slide frame 71 is aligned with the center of the upper hole of the chain plate. When the two pointers 74 indicate the center of the corresponding chain plate hole, the distance between the two slide frames 71 can be indicated according to the scale on the limiting wall 68, and then the distance between the relevant center holes can be inferred.

[0040] It should be noted that the specific installation method, circuit connection method, and control method of the servo motor 56 used in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A chain plate hole center distance measuring device, comprising a base plate (1), characterized in that: Four self-locking wheels (2) are fixedly installed at the four corners of the bottom end of the base plate (1). Four support rods (3) are fixedly installed symmetrically at the four corners of the top end of the base plate (1). The top ends of the four support rods (3) are fixedly connected to the top plate (4). A rotating component (5) is provided on the top plate (4). A limit component (6) is provided at the middle of the top end of the base plate (1) on the upper side of the top plate (4). A measuring component (7) is provided on the limit component (6).

2. The chain plate hole center distance measuring device according to claim 1, characterized in that: The rotating assembly (5) includes a fixed hanger (53), a sliding hanger (54), and two rotating seats (51). The two fixed hangers (53) are symmetrically fixedly installed at the top and bottom of the top plate (4). The inner cavities of the two fixed hangers (53) are respectively horizontally rotatably installed with two rotating rollers (52). The rotating seats (51) are fixedly installed at the bottom and bottom of the top plate (4). The end face of the uppermost rotating seat (51) in the width direction is fixedly connected to a servo motor (56). The output of the servo motor (56) is fixedly connected to the rotating shaft of the uppermost rotating roller (52) through a coupling.

3. The chain plate hole center distance measuring device according to claim 2, characterized in that: The fixed hanger (53) has two symmetrical sliding grooves (531) through both ends in the height direction. Two guide rods (532) are vertically fixedly installed in the inner cavity of the two sliding grooves (531). Two springs (533) are respectively sleeved on the outer surface of the two guide rods (532). The top of the sliding hanger (54) is vertically slidably installed in the middle of the top of the fixed hanger (53) in the horizontal direction.

4. The chain plate hole center distance measuring device according to claim 3, characterized in that: The two ends of the sliding hanger (54) that are far apart from each other are slidably connected to the two guide rods (532). The two ends of the two springs (533) abut against the top of the inner cavity of the two slide grooves (531) and the two ends of the sliding hanger (54) that are far apart from each other. A pressure roller (55) is rotatably installed between the vertically close end faces of the sliding hanger (54). The pressure roller (55) is parallel and aligned with the uppermost rotating roller (52).

5. The chain plate hole center distance measuring device according to claim 2, characterized in that: The limiting component (6) includes a gantry frame (61) and a crank (67). The two bottom ends of the gantry frame (61) in the vertical direction are fixedly connected to the middle of the top of the base plate (1). The top of the gantry frame (61) in the horizontal direction is located on the upper part of the top plate (4). Two connecting blocks (62) are symmetrically installed on both sides of the top of the gantry frame (61) in the horizontal direction away from the middle. A guide groove (63) is provided through the middle of the top of the gantry frame (61).

6. The chain plate hole center distance measuring device according to claim 5, characterized in that: A left-hand screw (64) is rotatably mounted between the two connecting blocks (62). The threads on the outer surfaces of the left-hand screw (64) on both sides away from the middle are arranged in opposite directions. Two threaded parts (65) that slide against the inner surface of the guide groove (63) are threaded on the two sides of the left-hand screw (64) away from the middle. Two L-shaped connecting rods (66) are fixedly mounted at the bottom ends of the two threaded parts (65). Two limiting walls (68) are fixedly mounted on the end faces of the two L-shaped connecting rods (66) that are close to each other. The crank (67) is eccentrically fixedly connected to the rotation shaft of the left-hand screw (64).

7. The chain plate hole center distance measuring device according to claim 6, characterized in that: The measuring component (7) includes multiple sliding frames (71), which are slidably mounted on the top of the two limiting walls (68). On the opposite surface of one sliding frame (71) near the other sliding frame (71), a fixing rod (72) is fixedly mounted. A slip ring (73) is slidably mounted on the outer surface of each fixing rod (72), and a pointer (74) is fixedly connected to the lower side of the outer surface of each slip ring (73).

8. The chain plate hole center distance measuring device according to claim 7, characterized in that: Multiple magnifying lenses (711) are installed through the middle of the top of each of the multiple sliding frames (71), and scales are provided at the top of each of the two limiting walls (68).

Images