Cylinder type angular travel executing mechanism

Abstract

The utility model provides an air cylinder type angular travel actuating mechanism, which relates to the technical field of travel actuating mechanisms, and comprises a mechanism shell, an upper moving structure and a lower moving structure, a left fixing sleeve is arranged at the left part in the mechanism shell, a left travel actuating mechanism is sleeved in the left fixing sleeve, a right fixing sleeve is arranged at the right part in the mechanism shell, and a right travel actuating mechanism is sleeved in the right fixing sleeve. A middle gear is movably arranged in the middle of the interior of the mechanism shell, a middle shaft rod is arranged in the center of the middle gear, and a first multi-stage telescopic air cylinder and a second multi-stage telescopic air cylinder are installed on the upper side and the lower side of the right portion of the interior of the mechanism shell correspondingly; an upper moving structure is arranged at the front end of the first multi-stage telescopic air cylinder, and a middle gear is arranged at the front end of the second multi-stage telescopic air cylinder. The angular travel bidirectional execution is adopted, the execution direction is accurate, safety and stability are kept in the execution process, and the mechanism is more reliable and practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to a stroke execution mechanism technical field, concretely relates to a cylinder type angle stroke execution mechanism. BACKGROUND

[0002] The cylinder type execution mechanism can bear high gas source pressure, has big thrust, fast stroke speed and is firm and durable. When used with double-acting valve positioner, the upper and lower parts of the cylinder simultaneously receive pure compressed air, do not exchange gas with corrosive atmosphere, are never corroded and have long service life. When working normally, the double-acting cylinder execution mechanism acts, and when the gas source fails, the spring can reset the valve core to make the valve close or open.

[0003] In the specification of the prior art (publication number CN203571189U) angle stroke cylinder type execution mechanism, it is mentioned that "it comprises a cylinder, a support, a piston and a push rod, a safety reset spring is arranged between the piston and the push rod, a sliding slot is formed in the lower part of the push rod, the support is a closed structure, the lower part of the support is a closed transmission box, a spherical cavity is arranged in the transmission box, fixed pieces and zero control arms are arranged on the inner wall of the spherical cavity, the four fixed pieces are uniformly distributed around the inner wall of the spherical cavity, one end of the zero control arm is arranged in the sliding slot, and the other end is movably connected with the fixed piece opposite to the sliding slot", but the angle stroke cylinder type execution mechanism in the prior art adopts one-way execution, and the execution direction is not accurate and stable, may shake or deviate and is not safe and stable. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the defects in the prior art, the cylinder type angle stroke execution mechanism is provided to solve the problems that the angle stroke cylinder type execution mechanism in the prior art adopts one-way execution, and the execution direction is not accurate and stable, may shake or deviate and is not safe and stable.

[0005] In order to achieve the above-mentioned purpose, the cylinder type angle stroke execution mechanism comprises a mechanism shell, an upper moving structure and a lower moving structure, a left fixed sleeve is arranged in the left part of the mechanism shell, a left stroke execution mechanism is sleeved in the left fixed sleeve, a right fixed sleeve is arranged in the right part of the mechanism shell, a right stroke execution mechanism is sleeved in the right fixed sleeve, a middle gear wheel is movably arranged in the middle part of the mechanism shell, a middle shaft rod is arranged at the center of the middle gear wheel, a first multi-stage telescopic cylinder and a second multi-stage telescopic cylinder are respectively arranged on the upper and lower sides of the right part of the mechanism shell, an upper moving structure is arranged at the front end of the first multi-stage telescopic cylinder, and a middle gear wheel is arranged at the front end of the second multi-stage telescopic cylinder.

[0006] Further, a left through port is arranged in the middle part of the left side of the mechanism shell, the front end of the left stroke execution mechanism extends into the left through port, and side sleeve plates are arranged on the upper and lower sides of the left fixed sleeve.

[0007] Further, the mechanism shell is internally provided with positioning rods on the left and right side walls, the left side sleeve plate is sleeved on the corresponding positioning rod, and the left stroke execution mechanism and the right stroke execution mechanism, the left fixed sleeve and the right fixed sleeve are left-right symmetrical about the center line of the mechanism shell.

[0008] Further, the right side of the mechanism shell is provided with a right through port in the middle part, the front end of the right stroke execution mechanism extends into the right through port, and the centers of the left stroke execution mechanism, the middle gear and the right stroke execution mechanism are located on the same axis.

[0009] Further, the recess in the upper end face of the upper moving structure is provided with an upper ball, the lower part of the upper moving structure is sleeved with an upper gear, the upper gear is a rotatable structure, the upper gear and the middle gear are toothedly connected, and the center of the upper gear is provided with an upper shaft rod.

[0010] Further, the recess in the lower end face of the lower moving structure is provided with a lower ball, the lower part of the lower moving structure is provided with a motor, the front end of the motor is provided with a second pulley, the upper part of the lower moving structure is sleeved with a lower gear, the lower gear is a rotatable structure, the lower gear and the middle gear are toothedly connected, the center of the lower gear is provided with a lower shaft rod, the front part of the lower shaft rod is provided with a first pulley, and the first pulley and the second pulley are transmissionally connected with a belt.

[0011] Further, the upper part of the front and rear sides of the mechanism shell is provided with an upper movable cavity, the front and rear ends of the upper shaft rod are respectively rollingly movable in the upper movable cavity on the same side, the middle part of the front and rear sides of the mechanism shell is provided with a middle movable cavity, the front and rear ends of the middle shaft rod are respectively rollingly movable in the middle movable cavity on the same side, and the lower part of the front and rear sides of the mechanism shell is provided with a lower movable cavity, the front and rear ends of the lower shaft rod are respectively rollingly movable in the lower movable cavity on the same side.

[0012] The beneficial effects of the utility model lie in:

[0013] 1. The utility model discloses a mechanism shell, which is internally provided with left and right stroke execution mechanisms, and the upper moving structure and the lower moving structure are pushed by a cylinder, so that the motor rotates the pulley, under the transmission of the belt, the lower gear moves and drives the middle gear to rotate, so that the left fixed sleeve or the right fixed sleeve is pushed to move by the middle gear, the left stroke execution mechanism is pushed out to execute when the left fixed sleeve moves to the left, and the right stroke execution mechanism is pushed out to execute when the right fixed sleeve moves to the right, which is more flexible and convenient.

[0014] 2. The utility model discloses a first multistage telescopic air cylinder can push and pull upper mobile structure, second multistage telescopic air cylinder can push and pull lower mobile structure left and right movement, the upper gear of upper mobile structure lower part is driven gear, and the lower gear on lower mobile structure constitutes driving gear under the drive of motor, and it is convenient to drive the middle gear rotation with driving gear, and the stable movement of middle gear is assisted with driven gear, and the angular stroke execution is more safe and stable.

[0015] 3. The utility model discloses the setting of upper movable cavity, middle movable cavity and lower movable cavity is to guarantee that upper gear, middle gear and lower gear move direction horizontal stability left and right, avoid the deviation, more safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view schematic drawing of the utility model embodiment;

[0017] Figure 2 It is the section schematic drawing of the utility model embodiment;

[0018] Figure 3 It is the left stroke execution mechanism extension after unfolding schematic drawing of the utility model embodiment;

[0019] Figure 4 It is the upper mobile structure schematic drawing of the utility model embodiment;

[0020] Figure 5 It is the lower mobile structure schematic drawing of the utility model embodiment.

[0021] In the drawing: 1, mechanism shell;10, left through mouth;11, positioning rod;12, right through mouth;13, first multistage telescopic air cylinder;14, second multistage telescopic air cylinder;15, left fixed sleeve;16, left stroke execution mechanism;17, side sleeve board;18, right fixed sleeve;19, right stroke execution mechanism;100, upper movable cavity;101, middle movable cavity;102, lower movable cavity;2, upper mobile structure;20, upper gear;21, upper shaft;22, upper ball;3, lower mobile structure;30, lower gear;31, lower shaft;32, first pulley;33, motor;34, second pulley;35, belt;36, lower ball;4, middle gear;40, middle shaft. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects of the utility model to be solved clearer, the utility model is further described in detail below in combination with the drawings and examples. The specific examples described herein are only used to explain the utility model and are not used to limit the utility model. Specific details such as specific system structures and technologies are proposed so as to understand the utility model examples more thoroughly. The described examples are part of the embodiments of the disclosure, not all the embodiments. However, it should be clear for those skilled in the art that the utility model can be realized in other embodiments without the specific details. Based on the examples in the disclosure, all other examples obtained by those skilled in the art without making creative efforts belong to the protection scope of the disclosure.

[0023] The specific implementation of the utility model is described in detail below in combination with the drawings.

[0024] Figure 1 It is a front view schematic diagram of the embodiment of the utility model, Figure 2 It is a cross-sectional schematic diagram of the embodiment of the utility model, Figure 3 It is a left stroke execution mechanism extension and unfolding schematic diagram of the embodiment of the utility model, Figure 4 It is an upper moving structure schematic diagram of the embodiment of the utility model and Figure 5 It is a lower moving structure schematic diagram of the embodiment of the utility model.

[0025] Referring to Figures 1 to 5 The utility model provides a kind of cylinder type angle stroke execution mechanism, including mechanism shell 1, upper moving structure 2 and lower moving structure 3, left fixed sleeve 15 is provided in the left part in mechanism shell 1, and left fixed sleeve 15 is sleeved with left stroke execution mechanism 16, right fixed sleeve 18 is provided in the right part in mechanism shell 1, and right fixed sleeve 18 is sleeved with right stroke execution mechanism 19, middle gear 4 is movably arranged in the middle part in mechanism shell 1, and the center of middle gear 4 is provided with middle shaft 40, first multistage telescopic cylinder 13 and second multistage telescopic cylinder 14 are respectively installed in the upper and lower sides of the right part in mechanism shell 1, and the front end of first multistage telescopic cylinder 13 is provided with upper moving structure 2, and the front end of second multistage telescopic cylinder 14 is provided with middle gear 4.

[0026] In the embodiment, the left side middle part of the mechanism shell 1 is provided with a left through port 10, and the front end of the left stroke executing mechanism 16 extends into the left through port 10, and the upper and lower sides of the left fixed sleeve 15 are both provided with side sleeve plates 17; the left and right side walls in the mechanism shell 1 are both fixed with positioning rods 11, the side sleeve plate 17 on the left side is sleeved on the corresponding positioning rod 11, and the left stroke executing mechanism 16 and the right stroke executing mechanism 19, the left fixed sleeve 15 and the right fixed sleeve 18 are all left-right symmetrical about the center line of the mechanism shell 1; the middle part of the right side of the mechanism shell 1 is provided with a right through port 12, and the front end of the right stroke executing mechanism 19 extends into the right through port 12, and the centers of the left stroke executing mechanism 16, the middle gear 4 and the right stroke executing mechanism 19 are all located on the same axis.

[0027] As a preferred embodiment, the left stroke executing mechanism 16 and the right stroke executing mechanism 19 are movably arranged in the left and right parts of the mechanism shell 1 respectively, the upper moving structure 2 and the lower moving structure 3 are pushed by the air cylinders, the motor rotates the belt pulley, under the transmission of the belt, the lower gear 30 moves and drives the middle gear 4 to rotate, so that the middle gear 4 can push the left fixed sleeve 15 or the right fixed sleeve 18 to move, pushing the left fixed sleeve 15 to move to the left can push the left stroke executing mechanism 16 to execute, and pushing the right fixed sleeve 18 to move to the right can push the right stroke executing mechanism 19 to execute, which is more flexible and convenient.

[0028] In the embodiment, the recess in the upper end face of the upper moving structure 2 is provided with an upper ball 22, and the lower part of the upper moving structure 2 is sleeved with an upper gear 20, the upper gear 20 is a rotatable structure, the upper gear 20 is toothedly connected with the middle gear 4, and the center of the upper gear 20 is provided with an upper shaft 21. The recess in the lower end face of the lower moving structure 3 is provided with a lower ball 36, and the lower part of the lower moving structure 3 is provided with a motor 33, the front end of the motor 33 is provided with a second belt pulley 34, and the upper part of the lower moving structure 3 is sleeved with a lower gear 30, the lower gear 30 is a rotatable structure, the lower gear 30 is toothedly connected with the middle gear 4, and the center of the lower gear 30 is provided with a lower shaft 31, the front part of the lower shaft 31 is provided with a first belt pulley 32, and the first belt pulley 32 and the second belt pulley 34 are transmissionally connected with a belt 35.

[0029] As a preferred embodiment, the first multi-stage telescopic cylinder 13 can push and pull the upper moving structure 2, and the second multi-stage telescopic cylinder 14 can push and pull the lower moving structure 3 to move left and right, the upper gear 20 on the lower part of the upper moving structure 2 is a driven gear, and the lower gear 30 on the lower moving structure 3 constitutes a driving gear under the driving of the motor, which is convenient to drive the middle gear 4 to rotate first, and at the same time, the driven gear assists the middle gear 4 to move stably, so that the angular stroke execution is safer and more stable.

[0030] In the embodiment, the upper movable cavities 100 are arranged on the upper parts of the front and rear sides of the mechanism shell 1, the upper ends of the upper shafts 21 are respectively and movably arranged in the upper movable cavities 100 on the same side, the middle movable cavities 101 are arranged on the middle parts of the front and rear sides of the mechanism shell 1, the middle ends of the middle shafts 40 are respectively and movably arranged in the middle movable cavities 101 on the same side, and the lower movable cavities 102 are arranged on the lower parts of the front and rear sides of the mechanism shell 1, the lower ends of the lower shafts 31 are respectively and movably arranged in the lower movable cavities 102 on the same side.

[0031] As a preferred embodiment, the upper movable cavities 100, the middle movable cavities 101 and the lower movable cavities 102 are arranged to ensure the horizontal stability of the left and right moving directions of the upper gear 20, the middle gear 4 and the lower gear 30, and to avoid deviation, and are safer and more reliable.

[0032] The utility model can effectively solve the problem that the single direction execution is adopted in the angular stroke cylinder type execution mechanism in the prior art, the execution direction is not accurate and stable, shaking or deviation may occur, and the utility model adopts the angular stroke bidirectional execution, the execution direction is accurate, the execution process is safe and stable, and is more reliable and practical.

[0033] The above embodiment is used to explain and illustrate the utility model, rather than limit the utility model, and any modification and change of the utility model within the spirit and the application protection right claim range of the utility model should be contained in the protection range of the utility model.

Claims

1. A pneumatic cylinder angular stroke actuator, characterized by: The utility model provides a kind of multi-axis linkage mechanism, including mechanism shell (1), upper moving structure (2) and lower moving structure (3), left fixed sleeve (15) is provided in the left part of mechanism shell (1), and left fixed sleeve (15) is sleeved with left stroke execution mechanism (16), right fixed sleeve (18) is provided in the right part of mechanism shell (1), and right fixed sleeve (18) is sleeved with right stroke execution mechanism (19), middle gear (4) is movably arranged in the middle part of mechanism shell (1), and the center of middle gear (4) is provided with middle shaft (40), first multistage telescopic cylinder (13) and second multistage telescopic cylinder (14) are respectively installed on the upper and lower sides of the right part of mechanism shell (1), and the front end of first multistage telescopic cylinder (13) is provided with upper moving structure (2), and the front end of second multistage telescopic cylinder (14) is provided with middle gear (4).

2. A pneumatic cylinder type angular stroke actuator according to claim 1, characterized in that The middle part of the left side of the mechanism shell (1) is provided with a left through port (10), and the front end of the left stroke execution mechanism (16) extends into the left through port (10), and the upper and lower sides of the left fixed sleeve (15) are provided with side sleeve plates (17).

3. A pneumatic cylinder type angular stroke actuator according to claim 2, characterized in that The left side of the side sleeve plate (17) is sleeved outside the corresponding positioning rod (11), and the left stroke execution mechanism (16) and the right stroke execution mechanism (19), the left fixed sleeve (15) and the right fixed sleeve (18) are symmetric about the center line of the mechanism shell (1).

4. A pneumatic cylinder type angular stroke actuator according to claim 3, characterized in that The middle part of the right side of the mechanism shell (1) is provided with a right through port (12), and the front end of the right stroke execution mechanism (19) extends into the right through port (12), and the centers of the left stroke execution mechanism (16), the middle gear (4) and the right stroke execution mechanism (19) are located on the same axis.

5. A pneumatic cylinder type angular stroke actuator according to claim 1, wherein The upper end surface of the upper moving structure (2) is provided with a groove, and an upper ball (22) is installed in the groove, and the lower part of the upper moving structure (2) is sleeved with an upper gear (20), the upper gear (20) is a rotatable structure, the upper gear (20) and the middle gear (4) are toothedly connected, and the center of the upper gear (20) is provided with an upper shaft (21).

6. A pneumatic cylinder type angular stroke actuator according to claim 1, characterized in that The lower end surface of the lower moving structure (3) is provided with a groove, and a lower ball (36) is installed in the groove, and the lower part of the lower moving structure (3) is provided with a motor (33), the front end of the motor (33) is provided with a second belt pulley (34), and the upper part of the lower moving structure (3) is sleeved with a lower gear (30), the lower gear (30) is a rotatable structure, the lower gear (30) and the middle gear (4) are toothedly connected, and the center of the lower gear (30) is provided with a lower shaft (31), the front part of the lower shaft (31) is provided with a first belt pulley (32), and the first belt pulley (32) and the second belt pulley (34) are transmissionally connected with a belt (35).

7. A pneumatic cylinder type angular stroke actuator according to claim 1, characterized in that The mechanism shell (1) is provided with upper movable cavities (100) on the upper parts of the front and rear sides, the front and rear ends of the upper shaft rods (21) are respectively rollingly movable in the upper movable cavities (100) on the same side, the mechanism shell (1) is provided with middle movable cavities (101) on the middle parts of the front and rear sides, the front and rear ends of the middle shaft rods (40) are respectively rollingly movable in the middle movable cavities (101) on the same side, and the mechanism shell (1) is provided with lower movable cavities (102) on the lower parts of the front and rear sides, the front and rear ends of the lower shaft rods (31) are respectively rollingly movable in the lower movable cavities (102) on the same side.

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