CN221049767U - Follower and mounting device - Google Patents

Abstract

The utility model discloses a follower, which belongs to the technical field of aerospace and weapons, and can intuitively observe the rotation angle of an eccentric end cover by arranging a positioning mark, so that the eccentric end cover on the other side rotates by the same angle, and the coaxiality of the two eccentric end covers is effectively ensured. The mounting device of the follower provided by the utility model can ensure the coaxiality of the two eccentric end covers through the matching use of the dial and the positioning mark, has the advantages of simple positioning method, easiness in operation and high positioning precision, is used for batch production projects of the follower, and solves the problems that the coaxiality of the follower arm shaft and the inner hole of the shell cannot meet the mounting requirement and influence the performance of the follower in the prior art. The utility model has obvious effect and is suitable for wide popularization.

Description

Follower and mounting device

Technical Field

The utility model relates to the technical field of aerospace and weapons, in particular to a follower and a mounting device.

Background

Followers are widely used in steering mechanisms for specialty vehicles. Aiming at the tooth form fit clearance requirement of the follower arm shaft and the piston rod, the eccentric angles of the eccentric end covers at the two ends are ensured, and the eccentric angles are required to be consistent, because the eccentric end covers have no circumferential positioning condition, the adjusting angle of the eccentric end covers can only be determined by the rotating friction force of the sensing arm shaft, so that the arm shaft and the tooth form of the piston rod cannot be in linear contact, the transmission quality of the piston rod is influenced, and the service life of the tooth is reduced.

The tooth-shaped fit clearance of the follower arm shaft and the piston rod is ensured by the eccentric angles of the eccentric end covers at the two ends, the eccentric distance of the eccentric end covers is 1mm, the two eccentric end covers are arranged at the two ends of the arm shaft and in the inner hole of the shell, the arm shaft can be adjusted up and down by 1mm, so that the tooth-shaped fit clearance is controlled, and because the eccentric end covers have no circumferential positioning condition, the adjusting angle of the eccentric end covers can only be determined by the rotating friction force of the sensing arm shaft, so that the arm shaft cannot be in linear contact with the tooth shape of the piston rod, the transmission quality of the piston rod is influenced, and the service life of the tooth is reduced.

At present, no better process method is available for solving the problems, and the problems become the bottleneck of batch production, so that a follower and a mounting device for positioning and adjusting an eccentric end cover are required to be developed.

Disclosure of utility model

The utility model aims at solving the technical problems that the coaxiality of a follower arm shaft cannot meet the installation requirement and the performance of the follower is affected by providing a follower and an installation device.

The utility model provides a follower comprising:

The shell comprises a first connecting part and a second connecting part which is integrally formed with the first connecting part, wherein the first connecting part is vertically arranged with the second connecting part and is communicated with the second connecting part, and positioning marks are arranged on the end surfaces of two sides of the first connecting part;

The piston rod is connected with the second connecting part in a sliding way and penetrates through the second connecting part;

An arm shaft rotatably connected to the first connecting portion and penetrating the first connecting portion, the arm shaft being connected to the piston rod and configured to drive the piston rod to move;

And the eccentric end covers are simultaneously connected with the arm shafts and the first connecting parts, and the positioning marks are in one-to-one correspondence with the eccentric end covers.

Preferably, the first connecting portion and the second connecting portion are both tubular structures; the eccentric end cover is provided with a connecting hole matched with the arm shaft, and a gap is arranged between the connecting hole and the rotating shaft of the first connecting part; and a plurality of first mounting holes are formed in the eccentric end cover along the circumference of the connecting hole.

Preferably, the outer surface of any eccentric end cover is provided with external threads, the inner surface of the first connecting part is provided with internal threads, and any eccentric end cover is in threaded connection with the first connecting part; the eccentric end covers are provided with two eccentric end covers and are respectively arranged at two sides of the first connecting part.

Preferably, the shape of the positioning mark is a triangle with a symmetry axis passing through the rotation axis of the first connecting part; or the positioning mark is shaped as an arrow pointing to the rotation axis of the first connection part.

A follower mounting device for use with a follower as defined in any one of the preceding claims, comprising:

The assembly wrench is detachably connected with the eccentric end cover through a fastener;

The dial is arranged between the assembly wrench and the eccentric end cover, the fastener sequentially penetrates through the assembly wrench, the dial is connected with the eccentric end cover, and the dial is provided with a second mounting hole matched with the first mounting hole.

Preferably, the assembly wrench comprises:

The mounting part is detachably connected with the eccentric end cover, and is provided with a positioning hole matched with the first mounting hole;

The extension rod and the installation part are integrally formed, and the extension rod is provided with two extension rods which are symmetrically arranged on two sides of the installation part.

Preferably, the outer diameter of the dial is equal to the inner diameter of the first connection portion; the outer diameter of the mounting portion is smaller than the outer diameter of the dial.

Preferably, a connection table is further arranged on the dial, and a plurality of clamping grooves are formed in the upper periphery Xiang Sheyou of the connection table.

Preferably, the assembly wrench comprises:

The connecting piece is connected with the connecting table, a plurality of clamping protrusions matched with the clamping grooves are arranged on the connecting piece, and the connecting piece is of a circular ring structure;

The hand piece is rotationally connected with the connecting piece, and two handles are symmetrically arranged on the hand piece along the connecting piece;

And the driver is connected with the handheld piece and the connecting piece through a speed changing piece, and is used for driving the connecting piece to rotate, and the speed changing piece is used for changing the direction of the force output by the driver.

According to the scheme, the follower provided by the utility model can intuitively observe the rotation angle condition of the eccentric end covers through the arrangement of the positioning marks, so that the eccentric end covers on the other side rotate by the same angle, and the coaxiality of the two eccentric end covers is effectively ensured. The mounting device of the follower provided by the utility model can ensure the coaxiality of the two eccentric end covers through the matching use of the dial and the positioning mark, and the positioning method is simple, easy to operate and high in positioning precision, and is used for batch production projects of the follower. The utility model solves the problems that the coaxiality of the follower arm shaft in the prior art can not meet the installation requirement, and the performance of the follower is affected, has obvious action effect and is suitable for wide popularization.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a follower and a device for installing the follower according to the present utility model;

FIG. 2 is a schematic diagram of a follower according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure shown at A in FIG. 1;

FIG. 4 is a cross-sectional view taken along line D-D of FIG. 2;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 6 is a schematic view of another follower mounting apparatus according to the present utility model;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

Fig. 8 is an exploded view of another follower mounting device according to the present utility model.

In fig. 1-8:

1. A housing; 2. a piston rod; 3. an arm shaft; 4. an eccentric end cap; 5. assembling a wrench; 6. a dial; 7. a fastener; 11. a first connection portion; 12. a second connecting portion; 41. a connection hole; 42. a first mounting hole; 51. a mounting part; 52. an extension rod; 53. a connecting piece; 54. a hand piece; 55. a driver; 56. a speed change member; 61. a second mounting hole; 62. a connection station; 63. a clamping groove; 111. an end face; 112. positioning identification; 511. positioning holes; 531. a clamping protrusion; 541. a handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, a specific embodiment of a follower according to the present utility model will now be described. The follower comprises a shell 1, a piston rod 2, an arm shaft 3 and an eccentric end cover 4, wherein the shell 1 comprises a first connecting part 11 and a second connecting part 12 which is integrally formed with the first connecting part 11, the first connecting part 11 is vertically arranged with the second connecting part 12 and is communicated with the second connecting part 12, and positioning marks 112 are arranged on end surfaces 111 at two sides of the first connecting part 11; the piston rod 2 is slidably connected with the second connecting part 12 and penetrates the second connecting part 12; the arm shaft 3 is rotatably connected with the first connecting part 11 and penetrates through the first connecting part 11, and the arm shaft 3 is connected with the piston rod 2 and is used for driving the piston rod 2 to move; the eccentric end caps 4 are simultaneously connected with the arm shaft 3 and the first connecting part 11, and the positioning marks 112 are in one-to-one correspondence with the eccentric end caps 4.

For convenience of explanation, referring to fig. 1, a rectangular coordinate system is established with any point in space as an origin, the setting direction of the piston rod 2 as a Z axis, the setting direction of the arm shaft 3 as an X axis, and a straight line direction perpendicular to the X axis and the Z axis at the same time as a Y axis, wherein the XY plane is a horizontal plane, the direction indicated on the horizontal plane is a horizontal direction, and the direction indicated on the Z axis is a vertical direction.

In the present embodiment, the positioning mark 112 has a triangular shape with a symmetry axis passing through the rotation axis of the first connection portion 11; or the positioning mark 112 is shaped as an arrow pointing to the rotation axis of the first connection 11. The positioning mark 112 is used for monitoring the rotation angle of the eccentric end cover 4. During installation, the eccentric end cover 4 on one side is connected with the first connecting part 11, the rotation angle of the eccentric end cover 4 relative to the positioning mark 112 is recorded, and during installation of the eccentric end cover 4 on the other side, the eccentric end cover 4 is rotated by the same angle. It is within the scope of the present application to implement the above-described performance functions associated with the positioning mark 112.

Compared with the prior art, the follower visually observes the rotation angle condition of the eccentric end cover 4 through the setting of the positioning mark 112, so that the eccentric end cover 4 on the other side is rotated by the same angle, the coaxiality of the two eccentric end covers 4 is effectively ensured, and the positioning method is simple, easy to operate and high in positioning precision. The utility model solves the problems that the coaxiality of the follower arm shaft 3 in the prior art can not meet the installation requirement, and the performance of the follower is affected, has obvious action effect and is suitable for wide popularization.

In the present embodiment, the first connection portion 11 and the second connection portion 12 are both tubular structures; the eccentric end cover 4 is provided with a connecting hole 41 matched with the arm shaft 3, a gap is arranged between the connecting hole 41 and the rotating shaft of the first connecting part 11, and the gap can be 1mm; the eccentric end cover 4 is provided with a plurality of first mounting holes 42 along the circumferential direction of the connection hole 41. The outer surface of any eccentric end cover 4 is provided with external threads, the inner surface of the first connecting part 11 is provided with internal threads, and any eccentric end cover 4 is in threaded connection with the first connecting part 11; the eccentric end caps 4 are provided in two and are provided on both sides of the first connecting portion 11, respectively.

Referring to fig. 1 to 5, a specific embodiment of a follower mounting device according to the present utility model will now be described. The mounting device of the follower is applied to the follower, and comprises an assembling spanner 5 and a dial 6, wherein the assembling spanner 5 is detachably connected with the eccentric end cover 4 through a fastener 7; the calibrated scale 6 is arranged between the assembly wrench 5 and the eccentric end cover 4, the fastening piece 7 sequentially penetrates through the assembly wrench 5, the calibrated scale 6 and the eccentric end cover 4, and the calibrated scale 6 is provided with a second mounting hole 61 which is matched with the first mounting hole 42. The fastener 7 may be a screw of M5, and the first mounting hole 42 is a threaded hole adapted to the screw; the second mounting holes 61 are through holes, and correspond to the first mounting holes 42 one by one.

In this embodiment, the assembly wrench 5 includes a mounting portion 51 and an extension rod 52, where the mounting portion 51 is detachably connected with the eccentric end cover 4, a positioning hole 511 adapted to the first mounting hole 42 is provided on the mounting portion 51, and the mounting portion 51 is in a ring-shaped structure; the extension rod 52 and the mounting portion 51 are integrally formed, two extension rods 52 are symmetrically arranged on two sides of the mounting portion 51, and the extension rod 52 is a round rod. The assembly wrench 5 is adaptively arranged according to the structural dimensions of the eccentric end cover 4 and the shell 1, the positioning hole 511 can be a phi 5 hole, the assembly wrench is inserted into the first mounting hole 42 of the eccentric end cover 4 through the positioning hole 511 by the fastener 7, and circumferential rotation adjustment of the eccentric end cover 4 is realized by applying force to the extension rod 52.

In the present embodiment, the outer diameter of the dial 6 is equal to the inner diameter of the first connecting portion 11; the outer diameter of the mounting portion 51 is smaller than the outer diameter of the dial 6. The dial 6 is arranged in a structure fit according to the shell 1 and the arm shaft 3, angle lines are engraved on the dial, the interval is 1 degree, and the center distance of the two second mounting holes 61 is 84mm.

Referring to fig. 1 to 5, a method for installing an eccentric end cap 4 of a follower according to the present utility model will now be described. The method for installing the eccentric end cover 4 of the follower is applied to the follower and the device for installing the follower, and comprises the following steps:

s1, inserting an eccentric end cover 4 into one side of the shell 1;

S2, the indication on the dial 6 is placed towards one side far away from the shell 1, and the fastener 7 sequentially penetrates through the positioning hole 511 and the second mounting hole 61 to be fixedly connected with the first mounting hole 42;

S3, rotating the assembly wrench 5, after adjusting the eccentric end cover 4 in place, recording a scale value R on the dial 6 pointed by the positioning mark 112 on the shell 1, and detaching the fastener 7, the assembly wrench 5 and the dial 6;

s4, inserting the eccentric end cover 4 at the other end into the other side of the shell 1;

s5, the indication on the dial 6 is placed towards the side far away from the shell 1, and the fastener 7 sequentially penetrates through the positioning hole 511 and the second mounting hole 61 to be fixedly connected with the first mounting hole 42.

S6, rotating the assembly wrench 5, observing scale values on the dial 6, and stopping when the scale values are regulated to the R values, wherein the two eccentric end covers 4 are regulated in place;

And S7, after the fastener 7 is detached, the spanner 5 is assembled and the dial 6 is assembled, the eccentric end covers 4 at the two ends are adjusted.

The method for installing the eccentric end cover 4 of the follower is a positioning and adjusting method for the eccentric end cover 4 of the follower, and solves the problem of non-concentricity of the eccentric end cover 4 by designing a method for assembling a wrench 5, a dial 6, adding a positioning mark 112 on a shell 1 and the like, thereby meeting the installation requirement of coaxiality of an arm shaft 3, being beneficial to batch production of the follower, being convenient to install, having high installation precision and better use effect of the follower obtained by production.

Referring to fig. 1 to 8, as another embodiment of the present utility model, the structure of the mounting device of the follower is basically the same as that of the above embodiment, and the difference is that the dial 6 is further provided with a connection table 62, a plurality of clamping grooves 63 are circumferentially arranged on the connection table 62, and the clamping grooves 63 are arc-shaped grooves. The assembly wrench 5 comprises a connecting piece 53, a handheld piece 54 and a driver 55, wherein the connecting piece 53 is connected with a connecting table 62, a plurality of clamping protrusions 531 matched with clamping grooves 63 are arranged on the connecting piece 53, the connecting piece 53 is of a circular ring structure, and when the assembly wrench is installed, an arm shaft 3 can pass through the circular ring structure to be arranged, so that interference is avoided; the hand piece 54 is rotationally connected with the connecting piece 53, and two handles 541 are symmetrically arranged on the hand piece 54 along the connecting piece 53; the driver 55 is connected to the hand piece 54 and to the connecting piece 53 via a gear shifting piece 56 for driving the connecting piece 53 to rotate, the gear shifting piece 56 being used for changing the direction of the force output by the driver 55. The driver 55 can be a motor, the clamping protrusion 531 is clamped with the clamping groove 63, a worker holds the handle 541, the connecting piece 53 and the dial 6 are pressed tightly through the hand piece 54, the driver 55 is started, the driver 55 rotates to drive the dial 6 to rotate, the dial 6 is fixedly connected with the eccentric end cover 4, the eccentric end cover 4 correspondingly rotates, and convenient installation of the eccentric end cover 4 is achieved.

In this embodiment, the speed changing member 56 may be a gear, and the outer side of the connecting member 53 is circumferentially provided with a plurality of teeth engaged with the speed changing member 56, the driver 55 is fixedly connected with the speed changing member 56, and the speed changing member 56 is engaged with the connecting member 53 and drives the connecting member 53 to rotate. The hand piece 54 is provided with a cavity, the connecting piece 53 penetrates through the hand piece 54, the convex teeth are arranged in the cavity, the speed changing piece 56 is arranged in the cavity, and an output shaft of the driver 55 extends into the cavity to be connected with the speed changing piece 56. It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other. What is not described in detail in the embodiments of the present utility model belongs to the prior art known to those skilled in the art.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A follower, comprising:

The shell (1) comprises a first connecting part (11) and a second connecting part (12) which is integrally formed with the first connecting part (11), wherein the first connecting part (11) is vertically arranged with the second connecting part (12) and is communicated with the second connecting part (12), and positioning marks (112) are arranged on end surfaces (111) at two sides of the first connecting part (11);

A piston rod (2) slidably connected to the second connection portion (12) and disposed through the second connection portion (12);

An arm shaft (3) rotatably connected to the first connecting portion (11) and disposed through the first connecting portion (11), the arm shaft (3) being connected to the piston rod (2) and configured to drive the piston rod (2) to move;

And the eccentric end covers (4) are simultaneously connected with the arm shafts (3) and the first connecting parts (11), and the positioning marks (112) are in one-to-one correspondence with the eccentric end covers (4).

2. A follower according to claim 1, wherein the first connection portion (11) and the second connection portion (12) are each of tubular construction; the eccentric end cover (4) is provided with a connecting hole (41) matched with the arm shaft (3), and a gap is arranged between the connecting hole (41) and the rotating shaft of the first connecting part (11); a plurality of first mounting holes (42) are formed in the eccentric end cover (4) along the circumferential direction of the connecting hole (41).

3. A follower according to claim 2, wherein the outer surface of any one of said eccentric end caps (4) is provided with an external thread, the inner surface of said first connecting portion (11) is provided with an internal thread, and any one of said eccentric end caps (4) is threadedly connected to said first connecting portion (11); the eccentric end covers (4) are provided with two and are respectively arranged on two sides of the first connecting part (11).

4. A follower according to claim 3, characterized in that the positioning mark (112) is shaped as a triangle with a symmetry axis passing through the rotation axis of the first connection portion (11); or the positioning mark (112) is shaped as an arrow pointing to the rotation axis of the first connection part (11).

5. A follower mounting device for use with a follower as defined in any one of claims 2 to 4, comprising:

The assembly wrench (5) is detachably connected with the eccentric end cover (4) through a fastener (7);

The scale disc (6) is arranged between the assembly wrench (5) and the eccentric end cover (4), the fastener (7) sequentially penetrates through the assembly wrench (5) and is connected with the eccentric end cover (4), and the scale disc (6) is provided with a second mounting hole (61) which is matched with the first mounting hole (42).

6. A mounting arrangement for a follower according to claim 5, characterized in that the assembly wrench (5) comprises:

The mounting part (51) is detachably connected with the eccentric end cover (4), and a positioning hole (511) matched with the first mounting hole (42) is formed in the mounting part (51);

Extension rod (52), with installation department (51) integrated into one piece, extension rod (52) are equipped with two, and the symmetry set up in the both sides of installation department (51).

7. A mounting arrangement for a follower according to claim 6, characterized in that the outer diameter of the dial (6) is equal to the inner diameter of the first connection portion (11); the outer diameter of the mounting part (51) is smaller than the outer diameter of the dial (6).

8. The device for mounting a follower according to claim 5, wherein the dial (6) is further provided with a connection table (62), and a plurality of clamping grooves (63) are circumferentially formed in the connection table (62).

9. A mounting arrangement for a follower according to claim 8, characterized in that the assembly wrench (5) comprises:

The connecting piece (53) is connected with the connecting table (62), a plurality of clamping protrusions (531) matched with the clamping grooves (63) are arranged on the connecting piece (53), and the connecting piece (53) is of a circular structure;

the hand piece (54) is rotationally connected with the connecting piece (53), and two handles (541) are symmetrically arranged on the hand piece (54) along the connecting piece (53);

And the driver (55) is connected with the handheld piece (54) and the connecting piece (53) through a speed changing piece (56) and is used for driving the connecting piece (53) to rotate, and the speed changing piece (56) is used for changing the direction of the output force of the driver (55).