Screw drive power assist mechanism

Abstract

The present invention discloses a screw transmission power-assisting mechanism, comprising a power input mechanism, a transmission power screw and a work output moving mechanism, wherein the transmission power screw is connected to the power input mechanism, the power input mechanism drives the transmission power screw to rotate, the work output moving mechanism engages with the transmission power screw and performs linear motion, the screw transmission power-assisting mechanism also comprises a counterweight screw, one end of the counterweight screw is connected to the transmission power screw through a screw connecting mechanism, the other end of the counterweight screw is connected to a power-assisting counterweight mechanism, the power-assisting counterweight mechanism applies power to the counterweight screw to make it rotate, and the counterweight screw then transmits the force to the transmission power screw through the screw connecting mechanism. Such a structural setting can reduce the power output of the power input mechanism, thereby reducing the energy consumption of the power input mechanism, achieving the purpose of saving resources, reducing costs, and eliminating safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical transmission, and in particular to a screw transmission power-assisting mechanism. Background Art

[0002] The screw drive mechanism is a widely used mechanical part whose main function is to convert rotational motion into linear motion.

[0003] The traditional screw transmission mechanism generally includes a power input mechanism, a transmission power screw and a work output moving mechanism. The transmission power screw is connected to the power input mechanism, and the power input mechanism drives the transmission power screw to rotate. The work output moving mechanism engages with the transmission power screw and performs linear motion. When the load acting on the work output moving mechanism is large, the input torque of the transmission power screw needs to provide a correspondingly large torque. The method currently often used is to increase the power of the power input mechanism. The commonly used method is, for example, to increase the power of the power input mechanism (such as: motor), increase the output of the power input mechanism (such as: motor), etc. This method will cause the torque of the power input mechanism and the input power to increase, so that energy consumption will increase, resources will be wasted, and costs will increase and there will be safety hazards. At the same time, it will limit the feasibility of certain miniaturized design solutions. Summary of the Invention

[0004] The purpose of the present invention is to provide a screw transmission power-assisting mechanism to solve the technical problems in the prior art of screw transmission mechanisms, such as high energy consumption, resulting in waste of resources, increased costs, and potential safety hazards.

[0005] The purpose of the present invention is achieved through the following technical solutions.

[0006] The purpose of the present invention is to provide a screw transmission power-assisting mechanism, including a power input mechanism, a transmission power screw and a working output moving mechanism, the transmission power screw is connected to the power input mechanism, the power input mechanism drives the transmission power screw to rotate, the working output moving mechanism engages with the transmission power screw and performs linear motion, the screw transmission power-assisting mechanism also includes a counterweight screw, one end of the counterweight screw is connected to the transmission power screw through a screw connecting mechanism, and the other end of the counterweight screw is connected to a power-assisting counterweight mechanism, the power-assisting counterweight mechanism applies power to the counterweight screw to make it rotate, and the counterweight screw then transmits the force to the transmission power screw through the screw connecting mechanism.

[0007] The above-mentioned power-assisting counterweight mechanism includes a movable block and a power-assisting mechanism. One end of the movable block is sleeved on the counterweight screw, and the other end of the movable block is fixedly connected to the end of the power-assisting mechanism. The power-assisting mechanism applies force to the movable block to make the movable block move linearly on the counterweight screw, thereby driving the counterweight screw to perform rotational motion.

[0008] The above-mentioned power-assisting mechanism is a pneumatic rod, a hydraulic rod or an electric push rod.

[0009] The above-mentioned power-assisting mechanism is a pneumatic rod, which includes a thrust sleeve, a gas rod, a spring and a spring adjustment preload seat. One end of the movable block is sleeved on one end of the counterweight screw rod, and the other end of the movable block is fixedly connected to the thrust sleeve. The thrust sleeve is fixedly connected to the gas rod, the gas rod is connected to the spring, and the spring is connected to the spring adjustment preload seat.

[0010] The movable block mentioned above is a screw nut.

[0011] The screw connection mechanism is a gear mechanism, and the direction of the linear motion of the working output moving mechanism on the transmission power screw is opposite to the direction of the linear motion of the movable block on the counterweight screw.

[0012] The above-mentioned screw rod connection mechanism is a synchronous pulley mechanism, and the direction of the linear motion of the working output moving mechanism on the transmission power screw rod is the same as the direction of the linear motion of the movable block on the counterweight screw rod.

[0013] The power input mechanism is connected to the transmission power screw rod by rotating the power output rod through the motor.

[0014] The power input mechanism mentioned above is a motor power input mechanism.

[0015] The leads of the above-mentioned transmission power screw and counterweight screw are not equal.

[0016] Compared with the prior art, the present invention has the following effects:

[0017] The present invention describes a screw transmission power-assisting mechanism, comprising a power input mechanism, a transmission power screw and a work output moving mechanism, wherein the transmission power screw is connected to the power input mechanism, the power input mechanism drives the transmission power screw to rotate, the work output moving mechanism engages with the transmission power screw and performs linear motion, the screw transmission power-assisting mechanism also comprises a counterweight screw, one end of the counterweight screw is connected to the transmission power screw through a screw connecting mechanism, the other end of the counterweight screw is connected to a power-assisting counterweight mechanism, the power-assisting counterweight mechanism applies power to the counterweight screw to make it rotate, and the counterweight screw then transmits the force to the transmission power screw through the screw connecting mechanism. Such a structural setting can reduce the power output of the power input mechanism, thereby reducing the energy consumption of the power input mechanism, achieving the purpose of saving resources, reducing costs, and eliminating safety hazards.

[0018] Other advantages of the present invention are described in detail in the embodiment section of the specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1is a stereogram provided by an embodiment of the present invention;

[0020] Figure 2 is a front view provided by an embodiment of the present invention;

[0021] Figure 3 is a three-dimensional diagram from another angle provided by an embodiment of the present invention;

[0022] Figure 4 is a cross-sectional view provided by an embodiment of the present invention;

[0023] Figure 5 It is a partial enlarged view of the cross-sectional view provided by an embodiment of the present invention;

[0024] Figure 6 It is a partial enlarged view of the cross-sectional view provided by an embodiment of the present invention;

[0025] Figure 7 It is an exploded view provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0027] Example:

[0028] like Figures 1 to 7 As shown, this embodiment provides a screw transmission power-assisting mechanism, including a power input mechanism 1, a transmission power screw 3 and a work output moving mechanism 6, wherein the transmission power screw 3 is connected to the power input mechanism 1, and the power input mechanism 1 drives the transmission power screw 3 to rotate, and the work output moving mechanism 6 is engaged with the transmission power screw 3 and performs linear motion, and the screw transmission power-assisting mechanism also includes a counterweight screw 4, one end of the counterweight screw 4 is connected to the transmission power screw 3 through a screw connection mechanism 2, and the other end of the counterweight screw 4 is connected to a power-assisting counterweight mechanism 5, and the power-assisting counterweight mechanism 5 applies power to the counterweight screw 4 to make it rotate, and the counterweight screw 4 then transmits the force to the transmission power screw 3 through the screw connection mechanism 2. Such a structural setting can reduce the power output of the power input mechanism 1, thereby reducing the energy consumption of the power input mechanism 1, and achieving the purpose of saving resources, reducing costs, and eliminating safety hazards.

[0029] Specifically, the power-assisting counterweight mechanism 5 includes a movable block 51 and a power-assisting mechanism 52. One end of the movable block 51 is sleeved on the counterweight screw 4, and the other end of the movable block 51 is fixedly connected to the end of the power-assisting mechanism 52. The power-assisting mechanism 52 applies force to the movable block 51 to make the movable block 51 move linearly on the counterweight screw 4, thereby driving the counterweight screw 4 to rotate.

[0030] Specifically, the power assist mechanism 52 is a pneumatic rod, a hydraulic rod, or an electric push rod.

[0031] Specifically, the power assist mechanism 52 is a pneumatic rod, which includes a thrust sleeve 521, a pneumatic rod 522, a spring 523 and a spring adjustment preload seat 524. One end of the movable block 51 is sleeved on one end of the counterweight screw 4, and the other end of the movable block 51 is fixedly connected to the thrust sleeve 521. The thrust sleeve 521 is fixedly connected to the pneumatic rod 522, the pneumatic rod 522 is connected to the spring 523, and the spring 523 is connected to the spring adjustment preload seat 524.

[0032] Preferably, the movable block 51 is a screw nut.

[0033] Preferably, the counterweight screw rod 4 passes through the movable block 51 and is inserted into the thrust sleeve 521 .

[0034] Specifically, the screw connecting mechanism 2 is a gear mechanism, and the direction of the linear motion of the working output moving mechanism 6 on the transmission power screw 3 is opposite to the direction of the linear motion of the movable block 51 on the counterweight screw 4.

[0035] Specifically, the screw connection mechanism 2 is a synchronous pulley mechanism, and the direction of the linear motion of the working output moving mechanism 6 on the transmission power screw 3 is the same as the direction of the linear motion of the movable block 51 on the counterweight screw 4.

[0036] Preferably, the power input mechanism 1 is connected to the transmission power screw 3 by rotating the power output rod 7 through a motor.

[0037] Preferably, the power input mechanism 1 is a motor power input mechanism.

[0038] Specifically, the leads of the transmission power screw 3 and the counterweight screw 4 are not equal.

[0039] The above embodiments are preferred implementations of the present invention, but the implementations of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A screw drive power assist mechanism, comprising a power input mechanism (1), a transmission power screw (3) and a work output moving mechanism (6), wherein the transmission power screw (3) is connected to the power input mechanism (1), the power input mechanism (1) drives the transmission power screw (3) to rotate, and the work output moving mechanism (6) engages with the transmission power screw (3) and performs linear motion, characterized in that: The device further comprises a counterweight screw rod (4), one end of the counterweight screw rod (4) being connected to a transmission power screw rod (3) via a screw rod connection mechanism (2), and the other end of the counterweight screw rod (4) being connected to a power-assist counterweight mechanism (5), the power-assist counterweight mechanism (5) applying power to the counterweight screw rod (4) to make it rotate, and the counterweight screw rod (4) then transmits the force to the transmission power screw rod (3) via the screw rod connection mechanism (2); The power-assisting counterweight mechanism (5) comprises a movable block (51) and a power-assisting mechanism (52), one end of the movable block (51) being sleeved on the counterweight screw rod (4), and the other end of the movable block (51) being fixedly connected to the end of the power-assisting mechanism (52), and the power-assisting mechanism (52) applying force to the movable block (51) to make the movable block (51) perform linear motion on the counterweight screw rod (4), thereby driving the counterweight screw rod (4) to perform rotational motion; The power-assisting mechanism (52) is a pneumatic rod, which includes a thrust sleeve (521), a gas rod (522), a spring (523) and a spring adjustment preload seat (524). One end of the movable block (51) is sleeved on one end of the counterweight screw rod (4). The other end of the movable block (51) is fixedly connected to the thrust sleeve (521). The thrust sleeve (521) is fixedly connected to the gas rod (522). The gas rod (522) is connected to the spring (523). The spring (523) is connected to the spring adjustment preload seat (524). The movable block (51) is a screw nut, and the counterweight screw (4) passes through the movable block (51) and is inserted into the thrust sleeve (521).

2. The screw drive power assist mechanism according to claim 1, characterized in that: The screw connecting mechanism (2) is a gear mechanism, and the direction of the linear motion of the working output moving mechanism (6) on the transmission power screw (3) is opposite to the direction of the linear motion of the movable block (51) on the counterweight screw (4).

3. The screw drive power assist mechanism according to claim 1, characterized in that: The screw connecting mechanism (2) is a synchronous pulley mechanism, and the direction of the linear motion of the working output moving mechanism (6) on the transmission power screw (3) is the same as the direction of the linear motion of the movable block (51) on the counterweight screw (4).

4. The screw drive power assist mechanism according to claim 1, characterized in that: The power input mechanism (1) is connected to the transmission power screw rod (3) through a motor-rotated power output rod (7).

5. The screw drive power assist mechanism according to claim 1, characterized in that: The power input mechanism (1) is a motor power input mechanism.

6. The screw drive power assist mechanism according to claim 1, characterized in that: The leads of the transmission power screw (3) and the counterweight screw (4) are not equal.

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