CN213598519U

CN213598519U - Reciprocating mechanism capable of changing stroke

Info

Publication number: CN213598519U
Application number: CN202022724328.1U
Authority: CN
Inventors: 张萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-07-02
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a reciprocating mechanism that can change stroke, which comprises a fixing plate and i, fixed mounting has the fixing base on the fixed plate, and is equipped with the pivot on the fixing base, be connected with the cam in the pivot, fixed mounting has guide structure on the fixed plate, and guide structure includes mounting panel, backup pad, mounting bolt, recess, through-hole, screw hole, connecting plate, guide pin bushing and connecting screw, the last movable rod that is equipped with of guide structure, and be equipped with connection structure between movable rod and the cam. A reciprocating mechanism that can change stroke belongs to the mechanical structure field, through the guide structure who sets up, guide pin bushing isotructure among the guide structure adopts the installation of formula of sinking, can not occupy unnecessary space after the installation, ensured the result of use again when practicing thrift the space, through the connection structure who sets up for the reciprocating stroke of movable rod can change, has improved and has used the flexibility.

Description

Reciprocating mechanism capable of changing stroke

Technical Field

The utility model relates to the field of mechanical structures, in particular to reciprocating mechanism that can change stroke.

Background

The reciprocating motion refers to a motion process that an object moves back and forth under the action of driving force, and the reciprocating motion can be realized by adopting a reciprocating mechanism. The existing reciprocating mechanism comprises a cam mechanism, a plane connecting rod mechanism, an incomplete gear, a sheave mechanism and the like, wherein the cam mechanism and the plane connecting rod mechanism are most commonly used; in the existing cam type reciprocating mechanism, a cam is utilized to drive a movable rod to reciprocate, but the reciprocating stroke cannot be changed, so that certain limitation exists in the use, and in the structure for guiding, the guide sleeve is installed externally, so that more space is occupied, and the use effect is influenced.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a reciprocating mechanism that can change the stroke can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a reciprocating mechanism that can change stroke, includes the fixed plate, fixed mounting has the fixing base on the fixed plate, and is equipped with the pivot on the fixing base, be connected with the cam in the pivot, fixed mounting has guide structure on the fixed plate, and guide structure includes mounting panel, backup pad, mounting bolt, recess, through-hole, screw hole, connecting plate, guide pin bushing and connecting screw, the last movable rod that is equipped with of guide structure, and be equipped with connection structure between movable rod and the cam, connection structure includes spout, fixed cover, connecting rod, slide bar and fastening screw.

Preferably, a motor is fixedly mounted on the fixing seat and connected with the rotating shaft, and the cam is rotatably connected with the motor through the rotating shaft.

Preferably, the mounting plate is fixedly connected with the supporting plate, the mounting bolt is arranged on the mounting plate and is connected with the fixing plate, the mounting plate is fixed on the fixing plate through the mounting bolt, the groove and the through hole are formed in the supporting plate, the threaded hole is formed in the groove in the supporting plate, the connecting plate is fixedly connected with the guide sleeve, and the connecting screw is arranged on the connecting plate.

Preferably, the connecting plate is arranged in the groove, the guide sleeve penetrates through the through hole, the tail end of the connecting screw is in threaded connection with the threaded hole, and the connecting plate is fixedly arranged in the groove in the supporting plate through the connecting screw.

Preferably, the spout is seted up on the cam, fixed cover is located on the movable rod, the connecting rod is fixed in fixed sheathe in, and is equipped with the round hole on the connecting rod, slide bar fixed mounting is in the round hole on the connecting rod, and the end of slide bar is arranged in the spout, fastening screw sets up on fixed sheathe in, and threaded connection between fastening screw and the fixed cover.

Preferably, the tail end of the movable rod is provided with an end cover, a circular groove is formed between the end cover and the movable rod, and a ball is arranged in the circular groove.

Compared with the prior art, the utility model discloses following beneficial effect has: this reciprocating mechanism that can change stroke through the guide structure who sets up, and guide pin bushing isotructure among the guide structure adopts the installation of formula of sinking, can not occupy unnecessary space after the installation, has ensured the result of use again when practicing thrift the space, through the connection structure who sets up for the reciprocating stroke of movable rod can change, has improved and has used the flexibility.

Drawings

Fig. 1 is a schematic view of the overall structure of a reciprocating mechanism with a variable stroke according to the present invention;

fig. 2 is a schematic structural view of a reciprocating mechanism guide structure capable of changing stroke according to the present invention;

fig. 3 is a schematic structural view of a reciprocating mechanism connecting structure capable of changing stroke according to the present invention;

fig. 4 is a schematic structural diagram of the reciprocating mechanism ball position of the present invention, which can change the stroke.

In the figure: 1. a fixing plate; 2. a fixed seat; 3. a rotating shaft; 4. a cam; 5. a guide structure; 501. mounting a plate; 502. a support plate; 503. installing a bolt; 504. a groove; 505. a through hole; 506. a threaded hole; 507. a connecting plate; 508. a guide sleeve; 509. a connecting screw; 6. a movable rod; 7. a connecting structure; 701. a chute; 702. fixing a sleeve; 703. a connecting rod; 704. a slide bar; 705. fastening screws; 8. an end cap; 9. a circular groove; 10. and a ball.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a reciprocating mechanism capable of changing a stroke includes a fixed plate 1, a fixed seat 2 is fixedly mounted on the fixed plate 1, a rotating shaft 3 is disposed on the fixed seat 2, a cam 4 is connected to the rotating shaft 3, a guide structure 5 is fixedly mounted on the fixed plate 1, the guide structure 5 includes a mounting plate 501, a support plate 502, a mounting bolt 503, a groove 504, a through hole 505, a threaded hole 506, a connecting plate 507, a guide sleeve 508 and a connecting screw 509, a movable rod 6 is disposed on the guide structure 5, a connecting structure 7 is disposed between the movable rod 6 and the cam 4, and the connecting structure 7 includes a sliding slot 701, a fixed sleeve 702, a connecting rod 703, a sliding rod 704 and a fastening;

the motor is fixedly installed on the fixing seat 2, the motor is connected with the rotating shaft 3, and the cam 4 is rotatably connected with the motor through the rotating shaft 3.

The mounting plate 501 is fixedly connected with the supporting plate 502, the mounting bolt 503 is arranged on the mounting plate 501, the mounting bolt 503 is connected with the fixing plate 1, the mounting plate 501 is fixed on the fixing plate 1 through the mounting bolt 503, the groove 504 and the through hole 505 are arranged on the supporting plate 502, the threaded hole 506 is arranged in the groove 504 on the supporting plate 502, the connecting plate 507 is fixedly connected with the guide sleeve 508, the connecting screw 509 is arranged on the connecting plate 507, and the smoothness of the movable rod 6 during moving is guaranteed through the arranged guide structure 5.

The connecting plate 507 is arranged in the groove 504, the guide sleeve 508 penetrates through the through hole 505, the tail end of the connecting screw 509 is in threaded connection with the threaded hole 506, the connecting plate 507 is fixedly arranged in the groove 504 on the supporting plate 502 through the connecting screw 509, the guide sleeve 508 and other structures in the guide structure 5 adopt a sinking type installation mode, redundant space cannot be occupied after installation, space is saved, and meanwhile the use effect is guaranteed.

The sliding groove 701 is formed in the cam 4, the fixing sleeve 702 is sleeved on the movable rod 6, the connecting rod 703 is fixed on the fixing sleeve 702, a round hole is formed in the connecting rod 703, the sliding rod 704 is fixedly installed in the round hole in the connecting rod 703, the tail end of the sliding rod 704 is located in the sliding groove 701, the fastening screw 705 is arranged on the fixing sleeve 702, the fastening screw 705 is in threaded connection with the fixing sleeve 702, and the reciprocating stroke of the movable rod 6 can be changed through the arranged connecting structure 7, so that the use flexibility is improved.

The end of the movable rod 6 is provided with an end cover 8, a circular groove 9 is formed between the end cover 8 and the movable rod 6, a ball 10 is arranged in the circular groove 9, sliding friction between the cam 4 and the movable rod 6 is changed into rolling friction through the arrangement of the ball 10, resistance is reduced, abrasion is reduced, and the service life is prolonged.

It should be noted that, the present invention is a reciprocating mechanism capable of changing stroke, when in use, the cam 4 is installed on the rotating shaft 3 of the fixed seat 2, the mounting plate 501 is installed and fixed by the mounting bolt 503, then the guide sleeve 508 is inserted into the through hole 505, so that the connecting plate 507 is located in the groove 504, the guide sleeve 508 is installed and fixed by the threaded connection between the connecting screw 509 and the threaded hole 506, then the movable rod 6 passes through the guide sleeve 508 on the supporting plate 502 in the guiding structure 5, so that the lower end of the movable rod 6 contacts the cam 4, thus completing the installation work of the whole reciprocating mechanism, after the reciprocating structure is installed, the upper end of the movable rod 6 is connected with the corresponding structure, then the mechanism is used, when in use, the motor works to drive the rotating shaft 3 on the fixed seat 2 to rotate, the rotating shaft 3 drives the cam 4 to rotate, when the ball 10 in the lower end circular groove 9 of the movable rod 6 contacts the big circular end of the, at the moment, the movable rod 6 is located at the lowest point and does not move, along with the rotation of the cam 4, the position of the ball 10 on the cam 4 moves from the large round end to the small round end, in the process, the movable rod 6 can rise along with the movement, so that the connected structure is lifted, after the ball 10 moves to the small round end, the movable rod 6 is located at the highest point and does not move, when the contact point of the ball 10 moves from the small round end to the large round end, the movable rod 6 descends along with the corresponding structure, so that the whole lifting process is completed, the cam 4 rotates continuously, the movable rod 6 and other structures lift continuously, so that the purpose of reciprocating motion is realized, if the lifting stroke of the movable rod 6 needs to be changed, the movable rod 6 moves upwards for a certain distance, the gap between the lower end of the movable rod and the cam 4 is large enough, and then a worker installs the fixing sleeve 702 at the lower end of the movable rod 6, utilize fastening screw 705 to fix, then insert slide bar 704 in the round hole of connecting rod 703 lower extreme, guarantee the fixed connection between slide bar 704 and the connecting rod 703, the tip card of slide bar 704 this moment is gone into in spout 701, actuating mechanism afterwards, cam 4 rotates and takes movable rod 6 reciprocating motion through connection structure 7, reciprocal formation at this moment diminishes, ball 10 can not contact cam 4 simultaneously, do not influence the normal activity of each structure, through the guide structure 5 that sets up, structures such as guide pin bushing 508 in the guide structure 5 adopt the formula of sinking mounting means, can not occupy unnecessary space after the installation, the result of use has been ensured again in the time of practicing thrift the space, connection structure 7 through the setting, make the reciprocating stroke of movable rod 6 can change, the flexibility of use has been improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A reciprocating mechanism capable of changing stroke is characterized in that: including fixed plate (1), fixed mounting has fixing base (2) on fixed plate (1), and is equipped with pivot (3) on fixing base (2), be connected with cam (4) on pivot (3), fixed mounting has guide structure (5) on fixed plate (1), and guide structure (5) including mounting panel (501), backup pad (502), construction bolt (503), recess (504), through-hole (505), screw hole (506), connecting plate (507), guide pin bushing (508) and connecting screw (509), be equipped with movable rod (6) on guide structure (5), and be equipped with connection structure (7) between movable rod (6) and cam (4), connection structure (7) include spout (701), fixed cover (702), connecting rod (704), slide bar (703) and fastening screw (705).

2. A variable stroke reciprocating mechanism as claimed in claim 1, wherein: the motor is fixedly mounted on the fixing seat (2), the motor is connected with the rotating shaft (3), and the cam (4) is rotatably connected with the motor through the rotating shaft (3).

3. A variable stroke reciprocating mechanism as claimed in claim 2, wherein: fixed connection between mounting panel (501) and backup pad (502), construction bolt (503) set up on mounting panel (501), and construction bolt (503) are connected with fixed plate (1), mounting panel (501) are fixed in on fixed plate (1) through construction bolt (503), recess (504) and through-hole (505) are seted up on backup pad (502), screw hole (506) are seted up in recess (504) on backup pad (502), fixed connection between connecting plate (507) and guide pin bushing (508), connecting screw (509) set up on connecting plate (507).

4. A variable stroke reciprocating mechanism according to claim 3, wherein: the connecting plate (507) is arranged in the groove (504), the guide sleeve (508) penetrates through the through hole (505), the tail end of the connecting screw (509) is in threaded connection with the threaded hole (506), and the connecting plate (507) is fixedly arranged in the groove (504) on the supporting plate (502) through the connecting screw (509).

5. A variable stroke reciprocating mechanism according to claim 4, wherein: the sliding groove (701) is arranged on the cam (4), the fixed sleeve (702) is sleeved on the movable rod (6), the connecting rod (703) is fixed on the fixed sleeve (702), a round hole is formed in the connecting rod (703), the sliding rod (704) is fixedly arranged in the round hole in the connecting rod (703), the tail end of the sliding rod (704) is located in the sliding groove (701), the fastening screw (705) is arranged on the fixed sleeve (702), and the fastening screw (705) is in threaded connection with the fixed sleeve (702).

6. A variable stroke reciprocating mechanism according to claim 5, wherein: the tail end of the movable rod (6) is provided with an end cover (8), a circular groove (9) is formed between the end cover (8) and the movable rod (6), and a ball (10) is arranged in the circular groove (9).