CN211740033U - A gear shaft runout detector - Google Patents

Abstract

The utility model relates to a gear shaft runout detector, which comprises a base and two symmetrical clamping groups arranged on the base. The base is further provided with a detection mechanism; the detection mechanism comprises a detection seat that can move in the horizontal direction on the base. , the detection seat is provided with a connection seat, the connection seat is movably connected with a first connecting rod, the first connecting rod is movably connected with a second connecting rod, and the end of the second connecting rod away from the first connecting rod is movably connected with a detection piece, and the first connecting rod is movably connected with a second connecting rod. The first connecting rod and the second connecting rod are movably connected through the connecting group; the detection part includes a dial dial and a fixing plate placed on one side of the dial dial. The fixed plate and the connecting seat are vertically extended with spherical protrusions, and the spherical protrusions are connected with the dial. A neck is smoothly transitioned between the corresponding fixing plate and the connecting seat. The utility model has the following advantages: the dial indicator can be adjusted flexibly and effectively, the detection accuracy is improved, and the detection requirements of the gear shafts of different lengths are met.

Description

A gear shaft runout detector

Technical field:

The utility model belongs to the field of gear shaft detection, in particular to a gear shaft runout detector.

Background technique:

The gear shaft runout detector is mainly used for the radial runout error measured at the gear shaft machining site or workshop inspection station. Announcement number CN203053348U discloses a simple gear shaft radial runout detection tool, including a clamp for clamping and fixing the axial ends of the gear shaft and a detector for detecting the radial runout between the teeth on the gear shaft. Including dial indicator, steel ball, steel ball fixing rod, spring, fixing sleeve, the upper end of the fixing sleeve is sleeved with the side head of the dial indicator, the lower end of the fixing sleeve is sleeved with the upper end of the steel ball fixing rod, and the spring is installed in the fixing sleeve It is sandwiched between the dial indicator probe and the steel ball fixing rod. The lower end of the steel ball fixing rod passes through the fixing sleeve. After the steel ball is clamped in the groove of the steel ball fixing rod, the center of the steel ball is on the central axis of the dial indicator probe. The patent has the following defects:

1. The adjustment of the position angle and length of the dial indicator is relatively limited, and the adjustment flexibility is low. Once a gap occurs when the detection part of the dial indicator contacts the contact surface of the gear shaft, it cannot be solved by adjusting the position of the dial indicator. Therefore, the detection accuracy of the radial runout error of the gear shaft is reduced; the connection between the dial indicator and the outside is too tight. When the radial runout error of the gear shaft is large, the detection part of the dial indicator is easy to be stuck on the gear shaft. The protruding part on the upper part will affect the detection accuracy of the dial indicator and its subsequent use;

2. The two clamping bodies that clamp the pinion are fixed on the base, and the distance between the two clamping bodies is a fixed value, which can only be used for the detection of a single length of the pinion, and cannot meet the detection of the pinion of different lengths. need.

Utility model content:

The purpose of the utility model is to overcome the above deficiencies, and provide a gear shaft runout detector, which can flexibly and effectively adjust the dial indicator, improve the detection accuracy, and meet the detection requirements of different length gear shafts.

The purpose of the utility model is achieved through the following technical solutions: a gear shaft runout detector, comprising a base and two symmetrically arranged clamping groups placed on the base, the gear shaft is horizontally placed between the two clamping groups, and the base There is also a testing agency;

The detection mechanism includes a detection seat that can move in the horizontal direction on the base, the detection seat is provided with a connection seat, the connection seat is movably connected with a first connecting rod, the first connecting rod is movably connected with a second connecting rod, and the second connecting rod is far away from One end of the first connecting rod is movably connected with a detection piece, and the first connecting rod and the second connecting rod are movably connected through the connecting group;

The detection part includes a dial and a fixed plate placed on one side of the dial. The lower end of the dial is connected with a detection rod. The fixed plate and the connecting seat are vertically extended with spherical protrusions, and the spherical protrusions are connected to the corresponding fixed plate. , There is a smooth transition between the connecting seats with a neck, and at the same time one end of the second connecting rod has a first groove body to accommodate the spherical protrusion on the fixing plate, and one end of the first connecting rod has a spherical protrusion embedded on the connecting seat. The first groove body and the second groove body are spherical chambers matched with the spherical protrusion, and the end surfaces of the first connecting rod and the second connecting rod close to the spherical protrusion are clamped on the neck.

The further improvement of the utility model is that: the clamping group comprises a clamping seat fixedly arranged on the base, and a clamping body placed on the clamping seat laterally, the clamping bodies of the two clamping groups are arranged opposite to each other, and the clamping seat It has a horizontally arranged cylinder and a fixed block, the interior of the fixed block has a cavity, one end of the cylinder is fixedly connected with the end face of the clamping body, the other end of the cylinder penetrates the cavity of the fixed block, and the end of the cylinder is provided with a touch switch, The fixed block is movably connected with a hinge rod, one end of the hinge rod passes through the cavity and is movably connected with the fixed block through the hinge shaft, the other end of the hinge rod is connected with a wire rope, the clamping seat is fixedly connected with a pull rod seat, and the pull rod seat is connected with a The wire rope positioning piece, the wire rope is connected with the handle through the wire rope positioning piece.

The further improvement of the utility model is that the end of the wire rope close to the hinge rod passes through the hinge rod, the end of the wire rope has a convex ball, and one end of the hinge rod has a groove for accommodating the convex ball.

A further improvement of the present invention is that the connecting group includes a first connecting body placed on one end of the first connecting rod and a second connecting body placed on one end of the second connecting rod, the first connecting body and the second connecting body are in contact , the second connecting body has a threaded circular groove, the first connecting body has a circular hole penetrating the first connecting body, the threaded circular groove and the circular hole are correspondingly arranged, and there is a tightening screw through the circular hole to the threaded circular groove, tightening The screw includes a threaded portion matched with the threaded circular groove and a smooth portion matched with the circular hole. The outer end of the tightening screw is provided with a tightening handle, and a pad is sleeved at the position between the tightening handle and the second connecting body. piece.

The further improvement of the utility model is that the detection seat can be linearly moved in the horizontal direction on the base, and the connecting seat can be linearly moved in the longitudinal direction on the detection seat;

One end of the detection seat extends vertically to both sides of the base with a first engaging portion, and both sides of the connecting seat respectively extend vertically to both sides of the other end of the detection seat with a second engaging portion, and the base covers the detection seat. In the two first engaging parts of one end, the other end of the detection seat is wrapped in the two second engaging parts of the connecting seat, and there is a first screw that vertically penetrates any of the first engaging parts to the outer end surface of the base, and vertically penetrates any one of the first engaging parts. A second screw is provided on the outer end surface of a second engaging portion to the detection seat.

Compared with the prior art, the utility model has the following advantages:

1. The dial of the present utility model is connected to the detection seat through the movably connected first connecting rod and the second connecting rod. The spherical protrusion is movably connected with the groove body, which improves the adjustment flexibility of the dial.

2. After the spherical protrusion and the groove body are fitted, there will be a certain friction force, which can not only realize the connection between the dial and the second connecting rod, the first connecting rod and the connecting seat, but also facilitate the dial of the dial. A small amount of rotation occurs under the action of external force. When the radial runout error of the pinion is large, avoid the dial and the second connecting rod from being too tight, so that the end of the detection rod is easily locked on the protruding part of the pinion. , to prevent affecting the detection accuracy and subsequent use of the dial indicator.

3. The two clamping groups are fixed on the base, the corresponding clamping bodies on the clamping groups can move in the horizontal direction, the pinion is fixed horizontally between the two clamping bodies, and the clamping body that can move horizontally can be moved horizontally. Clamping gear shafts of different lengths to meet the detection requirements of gear shafts of different lengths.

Description of drawings:

FIG. 1 is a schematic structural diagram of a gear shaft runout detector of the present invention.

FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1 .

3 is a schematic structural diagram of a clamping group of a gear shaft runout detector of the present invention.

4 is a schematic structural diagram of a connection group of a gear shaft runout detector of the present invention.

Labels in the figure:

1-base, 2-clamping group, 3-gear shaft, 4-detection mechanism, 5-first engaging part, 6-second engaging part, 7-first screw, 8-second screw;

21-Clamping seat, 22-Clamping body, 23-Cylinder, 24-Fixing block, 25-Cavity, 26-Tact switch, 27-Hinged rod, 28-Hinged shaft, 29-Wire rope, 210-Tie rod seat, 211-handle, 212-convex ball, 213-groove;

41-detection seat, 42-connection seat, 43-first connecting rod, 44-second connecting rod, 45-detection piece, 46-connection group;

451-percent dial, 452-fixed plate, 453-spherical protrusion, 454-neck, 455-first groove, 456-second groove, 457-detection rod;

461-first connecting body, 462-second connecting body, 463-threaded circular groove, 464-circular hole, 465-tightening screw, 466-tightening nut, 467-washer.

Detailed ways:

In order to deepen the understanding of the present utility model, the present utility model will be described in further detail below with reference to the embodiments and the accompanying drawings. The embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.

In the description of the present invention, it should be understood that the terms indicating orientation or positional relationship, such as the orientation or positional relationship shown based on the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that The structure or unit referred to must have a specific orientation, so it cannot be understood as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, terms such as “connected”, “provided” and “having” should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated connection. , it can be said to be mechanically connected, it can also be directly connected, and it can be connected through an intermediate medium. For those skilled in the art, the basic meaning of the above terms in the present invention can be understood according to the specific situation.

Figures 1 and 2 show an embodiment of a gear shaft runout detector of the present invention, which includes a base 1 and two symmetrically arranged clamping groups 2 placed on the base 1, and the gear shaft 3 is placed horizontally. Between the two clamping groups 2, the base 1 is also provided with a detection mechanism 4;

The detection mechanism 4 includes a detection seat 41 that can move in the horizontal direction on the base 1 . The detection seat 41 is provided with a connection seat 42 . The connection seat 42 is movably connected with a first link 43 , and the first link 43 is movably connected with a second The connecting rod 44, one end of the second connecting rod 44 away from the first connecting rod 43 is movably connected with the detecting member 45, and the first connecting rod 43 and the second connecting rod 44 are movably connected through the connecting group 46;

The detection piece 45 includes a dial 451, a fixing plate 452 placed on one side of the dial 451, a detection rod 457 is connected to the lower end of the dial 451, and a spherical protrusion 453 extends vertically from the fixing plate 452 and the connecting seat 42. , a neck 454 is smoothly transitioned between the spherical protrusion 453 and the corresponding fixing plate 452 and the connecting seat 42, and one end of the second connecting rod 44 has a first groove body 455 in which the spherical protrusion 453 on the fixing plate 452 is embedded. One end of the first connecting rod 43 has a second groove body 456 in which the spherical protrusion 453 on the connecting seat 42 is embedded. The first groove body 455 and the second groove body 456 are spherical chambers that cooperate with the spherical protrusion 453. The end surfaces of the first connecting rod 43 and the second connecting rod 44 close to the spherical protrusion 453 are clamped on the neck 454 .

In the present invention, the end of the detection rod 457 of the dial dial 451 abuts against the outer end face of the pinion 3, and the dial dial 451 can rotate along the connection between the first connecting rod 43 and the second connecting rod 44. Adjusted to the required position, the specific structure and detection principle of the watch sub-dial 451 are consistent with the structure of the detector of the patent CN203053348U, so they will not be repeated.

The dial 451 of the present invention is connected to the detection seat 41 through the movably connected first connecting rod 43 and the second connecting rod 44 , and the first connecting rod 43 and the connecting seat 42 and the second connecting rod 44 on the testing seat 41 The dial 451 is movably connected with the dial 451 by way of fitting the spherical protrusion 453 with the groove body, so as to improve the adjustment flexibility of the dial 451 .

After the spherical protrusion 453 is fitted with the groove body, it will have a certain frictional force, which can not only realize the connection between the dial 453 and the second connecting rod 44, the first connecting rod 43 and the connecting seat 42, but also facilitate the connection between the dial 453 and the second connecting rod 44. The sub-dial 453 rotates slightly under the action of external force. When the radial runout error of the pinion 3 is large, it is avoided that the dial 453 and the second connecting rod 44 are too tight and the end of the detection rod 457 is easily locked. The protruding part on the pinion 3 prevents the detection accuracy and subsequent use of the dial 453 from being affected.

Further, the clamping group 2 includes a clamping base 21 fixedly arranged on the base 1, and a clamping body 22 placed on the clamping base 21 and placed laterally. The holder 21 has a horizontally arranged cylinder 23 and a fixing block 24 . The interior of the fixing block 24 has a cavity 25 . The cavity 25 and the end of the cylinder 23 have a touch switch 26, the fixed block 24 is movably connected with a hinge rod 27, one end of the hinge rod 27 passes through the cavity 25 and is movably connected to the fixed block 24 through the hinge shaft 28, and the other side of the hinge rod 27 is movably connected. A wire rope 29 is connected to one end, a pull rod base 210 is fixedly connected to the clamping base 21 , and a wire rope positioning member 214 is connected to the pull rod base 210 .

Further, one end of the wire rope 29 close to the hinge rod 27 passes through the hinge rod 27 , the end of the wire rope 29 has a convex ball 212 , and one end of the hinge rod 27 has a groove 213 in which the convex ball 212 fits.

It should be understood that the cylinder 23 of the present invention belongs to a commercially available product, and is the prior knowledge known to those skilled in the art. The driving stroke distance of the cylinder 3 can be set in advance according to the length between the pinion 3 and the clamping seat 21. Certainly.

The working principle of the clamping group 2: Pull the handle 211, so that the wire rope 29 pulls one end of the hinge rod 27 to rotate a certain angle in the direction of the gear shaft 3. When rotating, the hinge shaft 28 is used as the hinge point, so that the hinge rod 27 touches the cylinder on the cylinder 23. When the switch 26 is touched, the air cylinder 23 drives the clamping body 22 fixedly connected with the air cylinder 23 forward, and the two clamping bodies 22 drive the pinion 3 at the same time, so as to realize the clamping of the pinion 3 and the triggering of the air cylinder 23 After the switch 26 is actuated, the cylinder 23 drives the clamping body 22 according to the set travel distance, and then stops driving to fix the clamping body 22. At this time, the end face of the reset hinge rod 27 of the wire rope 29 is separated from the touch switch 26, and the tooth is to be removed. When the shaft 3 is moved, the handle 211 is pulled again to make the hinge rod 27 trigger the cylinder 23, and the cylinder 23 moves in the opposite direction, so that the clamping body 22 is separated from the gear shaft 3 to realize material reclaiming.

The connecting group 46 includes a first connecting body 461 placed on one end of the first connecting rod 43 and a second connecting body 462 placed on one end of the second connecting rod 44, the first connecting body 461 is in contact with the second connecting body 462, The second connecting body 462 has a threaded circular groove 463, and the first connecting body 461 has a circular hole 464 penetrating the first connecting body 461. The threaded circular groove 463 is corresponding to the circular hole 464 and penetrates the circular hole 464 to the threaded circular groove. There is a tightening screw 465 in the 463. The tightening screw 465 includes a threaded portion matched with the threaded circular groove 463 and a smooth portion matched with the circular hole 464. The outer end of the tightening screw 465 has a tightening handle 466. A spacer 467 is sleeved at the position between the tightening handle 466 and the second connecting body 462 .

Further, the detection seat 41 can be linearly moved in the horizontal direction on the base 1, and the connecting seat 42 can be linearly moved in the longitudinal direction on the detection seat 41;

One end of the detection seat 41 extends vertically to both sides of the base 1 with a first engaging portion 5 , and both sides of the connecting seat 42 extend vertically to both sides of the other end of the detection seat 41 respectively with a second engaging portion 6 . Covered in the two first engaging parts 5 at one end of the detection seat 41 , and the other end of the detection seat 41 is covered in the two second engaging parts 6 of the connecting seat 42 , and vertically penetrates any of the first engaging parts 5 A first screw 7 is provided to the outer end surface of the base 1 , and a second screw 8 is provided to the outer end surface of the detection base 41 vertically penetrating any second engaging portion 6 .

The detection seat 41 can move on the base 1, and the detection seat 41 can be fixed or moved on the base 1 by tightening or loosening the first screw 7; The fixing or moving of the front and rear positions of the mechanism 4 further realizes the adjustment flexibility of the dial 451 .

The content not disclosed in the present utility model is the existing common sense known to those skilled in the art. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The principle of the utility model, without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a gear shaft detector that beats which characterized in that: the gear shaft clamping device comprises a base (1) and two symmetrically arranged clamping groups (2) arranged on the base (1), wherein a gear shaft (3) is horizontally arranged between the two clamping groups (2), and a detection mechanism (4) is further arranged on the base (1);

the detection mechanism (4) comprises a detection seat (41) which can move on the base (1) in the horizontal direction, a connection seat (42) is arranged on the detection seat (41), a first connecting rod (43) is movably connected onto the connection seat (42), a second connecting rod (44) is movably connected onto the first connecting rod (43), a detection piece (45) is movably connected to one end, far away from the first connecting rod (43), of the second connecting rod (44), and the first connecting rod (43) is movably connected with the second connecting rod (44) through a connection group (46);

the detection part (45) comprises a dial indicator (451), a fixed plate (452) arranged on one side of the dial indicator (451), the lower end of the dial indicator (451) is connected with a detection rod (457), the fixed plate (452) and the connecting seat (42) are vertically extended with spherical bulges (453), a neck part (454) is smoothly transited between the spherical bulge (453) and the corresponding fixing plate (452) and connecting seat (42), meanwhile, one end of the second connecting rod (44) is provided with a first groove body (455) which is used for embedding the spherical bulge (453) on the fixing plate (452), one end of the first connecting rod (43) is provided with a second groove body (456) which is used for embedding the spherical bulge (453) on the connecting seat (42), the first groove body (455) and the second groove body (456) are spherical chambers matched with the spherical protrusions (453), the end surfaces of the first connecting rod (43) and the second connecting rod (44) close to the spherical bulge (453) are clamped on the neck part (454).

2. The gear shaft runout detector according to claim 1, characterized in that: the clamping groups (2) comprise clamping seats (21) fixedly arranged on a base (1) and clamping bodies (22) transversely arranged on the clamping seats (21), the clamping bodies (22) of the two clamping groups (2) are oppositely and correspondingly arranged, each clamping seat (21) is provided with a cylinder (23) and a fixed block (24) which are transversely arranged, a cavity (25) is formed in each fixed block (24), one end of each cylinder (23) is fixedly connected with the end face of each clamping body (22), the other end of each cylinder (23) penetrates through the cavity (25) of each fixed block (24), a trigger switch (26) is arranged at the end of each cylinder (23), each fixed block (24) is movably connected with a hinge rod (27), one end of each hinge rod (27) penetrates through the cavity (25) to be movably connected with the fixed block (24) through each hinge shaft (28), and the other end of each hinge rod (27) is connected with a steel wire rope (29), the clamping seat (21) is fixedly connected with a pull rod seat (210), the pull rod seat (210) is connected with a steel wire rope positioning piece (214), and the steel wire rope (29) penetrates through the steel wire rope positioning piece (214) to be connected with the handle (211).

3. The gear shaft runout detector according to claim 2, characterized in that: one end of the steel wire rope (29) close to the hinge rod (27) penetrates through the hinge rod (27), a convex ball (212) is arranged at the end of the steel wire rope (29), and a groove (213) for embedding the convex ball (212) is formed in one end of the hinge rod (27).

4. A gear shaft runout detector according to claim 1, 2 or 3, characterized in that: the connection group (46) includes a first connection body (461) disposed on one end of the first link (43) and a second connection body (462) disposed on one end of the second link (44), the first connecting body (461) is contacted with the second connecting body (462), the second connecting body (462) is provided with a thread round groove (463), the first connecting body (461) is provided with a round hole (464) penetrating through the first connecting body (461), the thread round groove (463) is arranged corresponding to the round hole (464), and a screw (465) is arranged in the thread circular groove (463) penetrating through the circular hole (464), the tightening screw (465) comprises a thread part matched with the thread round groove (463) and a smooth part matched with the round hole (464), one end of the tightening screw (465) which is arranged at the outer side is provided with a tightening handle (466), the position, between the tightening handle (466) and the second connecting body (462), of the tightening screw rod (465) is sleeved with a gasket (467).

5. The gear shaft runout detector according to claim 1, characterized in that: the detection seat (41) can do linear movement on the base (1) in the horizontal direction, and the connecting seat (42) can do linear movement on the detection seat (41) in the longitudinal direction;

one end of the detection seat (41) is vertically extended to two sides of the base (1) to form a first clamping portion (5), two sides of the connection seat (42) are vertically extended to two sides of the other end of the detection seat (41) to form a second clamping portion (6), the base (1) is wrapped in the two first clamping portions (5) at one end of the detection seat (41), the other end of the detection seat (41) is wrapped in the two second clamping portions (6) of the connection seat (42), a first screw rod (7) is arranged on the outer end face penetrating through any one first clamping portion (5) to the base (1) vertically, and a second screw rod (8) is arranged on the outer end face penetrating through any one second clamping portion (6) to the detection seat (41) vertically.

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