Device with rocker arm for pulling heavy object to rise and fall in small range and lifting position of heavy object in large range
By designing a device including a rocker arm, a rocker arm power rod, an internal pulley and an end pulley, the steel cable is used to move up and down through the groove of the pulley, and combined with the steel cable control device, the problem of the inability to achieve large lifting and position setting of the weight is solved in the prior art, and the multifunctional movement and precise position setting of the weight are realized.
Patent Information
- Application Number
- CN202311411210.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-29
- Publication Date
- 2025-04-29
AI Technical Summary
The prior art cannot achieve large lifting and lowering of heavy objects and arbitrary setting of positions, and can only achieve small reciprocating linear motion.
By designing a device including a rocker arm, a rocker arm power rod, an internal pulley and an end pulley, the cable is used to move up and down through the groove of the pulley, and combined with the cable control device, the heavy object is greatly lifted and lowered and the position setting is precisely set.
It realizes that the heavy objects can not only move up and down slightly, but also lift and lower greatly, and the heavy objects can be lifted and lowered greatly, meeting the needs of the new tamping machine.
Smart Images
Figure CN119898693A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of a rocker arm rotating to pull a heavy object to move linearly, and in particular relates to a device that a rocker arm can pull a heavy object to rise or fall by a small amplitude and the position of the heavy object can be raised or lowered by a large amplitude. Background Art
[0002] A device that utilizes a rocker arm to swing and rotate to pull a heavy object to move up and down in a straight line. The function of this type of device is to pull the heavy object to move up and down in a straight line as the rocker arm swings and rotates. The heavy object makes equal-distance reciprocating motions, and the distance of the equal-distance reciprocating motion of the heavy object is small. It is impossible to move the heavy object in a large range, nor is it possible to make the heavy object rise or fall to any set position at will. In order to solve the above problems, a device is invented that can use a rocker arm to pull a heavy object up and down by a small range and can also lift the position of the heavy object by a large range. Summary of the invention
[0003] The purpose of the present invention is to enable the rocker arm to drive the heavy object to perform a small reciprocating linear motion, and also to drive the heavy object to perform a large linear motion exceeding the rocker arm's rotation diameter. The new automatic tamping machine requires such a function, and this invention can meet the needs of the new tamping machine.
[0004] The present invention provides the following technical solution: a device for lifting a heavy object by a small amplitude while the position of the heavy object can be lifted or lowered by a large amplitude by a rocker arm, comprising: Rocker power rod, rocker power rod bearing cover, rocker power rod and rocker connecting shaft, rocker, rocker middle pulley to prevent the steel cable from going out of the groove, rocker internal pulley, rocker internal pulley positioning plate, rocker internal pulley shaft, rocker internal pulley cross bar, rocker end pulley, rocker end pulley support, rocker end pulley to prevent the steel cable from going out of the groove, cross bar diagonal rod fixing steel, rocker internal pulley cross bar fixing seat, fixed steel reinforcement support, rocker internal pulley diagonal rod; The rocker arm power rod is connected to the rocker arm connecting shaft, the rocker arm internal pulley and the rocker arm end pulley are connected to the rocker arm through the shaft, and the rocker arm internal pulley shaft is connected to the rocker arm internal pulley cross bar; the rocker arm power rod moves up and down to drive the rocker arm to rotate up and down, and the steel cable connected to the heavy object passes through the groove of the rocker arm end pulley and the rocker arm internal pulley; The lower part of the rocker arm power rod (1) is connected to a power mechanism. When the power mechanism at the lower part moves up and down, the rocker arm (1) is driven to rotate up and down with the pulley shaft (16) inside the rocker arm as the center of the circle through the rocker arm power rod and the rocker arm connecting shaft (3). The steel cable in the groove of the pulley (10) at the end of the rocker arm moves up and down. When the steel cable in the groove of the pulley (6) inside the rocker arm is fixed, the pulley (10) at the end of the rocker arm pulls the weight below the steel cable to move up and down; when the steel cable in the groove of the pulley (6) inside the rocker arm is pulled out, the pulley (10) at the end of the rocker arm pulls the weight below the steel cable to rise; when the steel cable in the groove of the pulley (6) inside the rocker arm is released and enters, the pulley (10) at the end of the rocker arm pulls the weight below the steel cable to descend.
[0005] Furthermore, the rocker arm power rod is rigid for transmitting tension and thrust, and the rocker arm power rod can also be flexibly for transmitting tension without transmitting thrust; the rocker arm is a rigid transmission arm, which transmits the force of the rocker arm power rod to the steel cable in the pulley groove at the end of the rocker arm.
[0006] Furthermore, the steel cable passes through the pulley groove of the pulley at the end of the rocker arm, from the upper pulley groove of the pulley at the end of the rocker arm to the upper part of the pulley groove of the pulley inside the rocker arm, and then is led out along the pulley groove of the pulley inside the rocker arm.
[0007] Furthermore, the internal pulley cross bar of the rocker arm, the internal pulley diagonal rod of the rocker arm and the cross bar diagonal rod fixing steel form a fixed bracket, which supports the rocker arm to rotate up and down through the internal pulley shaft of the rocker arm.
[0008] Furthermore, the steel cable in the pulley groove of the pulley at the end of the rocker arm is connected downward to the weight through the left outer pulley groove of the pulley at the end of the rocker arm, and the pulley at the end of the rocker arm and the steel cable work together to pull the weight up and down.
[0009] Furthermore, the steel cable in the pulley groove of the pulley inside the rocker arm is led out from the upper pulley groove of the pulley inside the rocker arm and along the pulley groove, and the end of the led-out steel cable is connected to the steel cable control device. When the steel cable control device fixes the steel cable, the weight moves up and down; when the control device retracts the steel cable, the weight moves upward; when the control device releases the steel cable, the weight moves downward; when the control device is locked in the pulling-out direction of the steel cable, the pulling-in direction of the steel cable maintains a torque for pulling the steel cable in, and this torque is less than the weight of the weight and slightly larger than the taking-in torque of the empty steel cable. In this way, when the weight moves up and down, as the position of the weight continues to rise, the steel cable is always in a tensioned state, and the up and down swing of the rocker arm keeps pulling the weight up and down. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 , a schematic diagram of a device in which a rocker arm pulls a heavy object up or down by a small amount and the position of the heavy object can be raised or lowered by a large amount.
[0011] In the figure: 1. rocker arm power rod, 2. rocker arm power rod bearing cover, 3. rocker arm power rod and rocker arm connecting shaft, 4. rocker arm, 5. rocker arm middle pulley to prevent the steel cable from going out of the groove, 6. rocker arm internal pulley, 7. rocker arm internal pulley positioning plate, 16. rocker arm internal pulley shaft, 8. rocker arm internal pulley cross bar, 10. rocker arm end pulley, 11. rocker arm end pulley support, 13. rocker arm end pulley to prevent the steel cable from going out of the groove, 12. cross bar diagonal rod fixing steel, 15. rocker arm internal pulley cross bar fixing seat, 14. Fixed steel reinforcement support, 9. rocker arm internal pulley diagonal rod. Implementation
[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. The directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.
[0013] like Figure 1 As shown, this embodiment provides a device that can be used to lift a heavy object up or down by a small amplitude by pulling a rocker arm, and can also lift the heavy object up or down by a large amplitude, including a rocker arm, a rocker arm power rod, an internal pulley of the rocker arm, a pulley at the end of the rocker arm, a cross bar of the internal pulley of the rocker arm, an inclined rod of the internal pulley of the rocker arm, and a support frame composed of steel materials for fixing the cross bar and the inclined rod.
[0014] The upper part of the rocker arm power rod is connected to the right end of the rocker arm, and the lower part of the rocker arm power rod is connected to the power mechanism. The power mechanism is an equal-amplitude pull-down and push-up device, and the pull-down and push-up distances are smaller than the rotation diameter of the rocker arm.
[0015] A rocker arm end pulley is installed at the left end of the rocker arm, and a steel cable passes through the pulley groove of the rocker arm end pulley. The steel cable passes from the left and upper part of the pulley groove of the rocker arm end pulley to the upper part of the pulley groove of the pulley inside the rocker arm, and is led out along the pulley groove of the pulley inside the rocker arm.
[0016] The end of the steel cable led out from the left side of the pulley groove of the pulley at the end of the rocker arm is connected to the weight, and the weight is lifted and lowered by the steel cable.
[0017] The end of the steel cable led out from the right side of the pulley groove of the pulley inside the rocker arm is connected to the steel cable control mechanism. When the rocker arm swings up and down, the steel cable control mechanism locks the steel cable. At this time, the heavy object moves up and down slightly, and the moving distance of the heavy object is less than the rotating diameter of the rocker arm.
[0018] When the heavy object needs to be moved significantly, the cable control mechanism pulls in the cable to raise the heavy object. The rising distance can be greater than the rotating diameter of the rocker arm, and the heavy object can be lifted to the required distance significantly; the cable control mechanism releases the cable to lower the heavy object. The lowering range can be greater than the rotating diameter of the rocker arm, and the heavy object can be lowered to the required position significantly.
[0019] The rocker arm swings up and down, and the cable control mechanism locks the cable out and gives the cable a suitable torque to tighten it. When the weight gradually rises, the cable control mechanism pulls the cable in with a suitable torque to achieve a small up and down movement of the weight. At the same time, the weight gradually rises, and the cable is always in a tightened state with a suitable torque. In the process of tamping coal cakes produced by coke ovens, the heavy object is a tamping hammer. The tamping hammer moves up and down to tamping the coal cakes, and coal is continuously added to make the tamping hammer fall to the bottom and continue to rise. The cable pulling the tamping hammer is always in a tightened state with a suitable torque as the tamping hammer continues to rise, completing the tamping of the coal cakes from the bottom to the top.
[0020] After the tamping of one coal cake is completed, the steel cable control mechanism retracts the steel cable and pulls the tamping hammer to a greater height, and the tamping of one coal cake is completed.
[0021] When a new coal cake starts to be tamped, the steel cable control mechanism releases the steel cable, and the tamping hammer drops to the lower part of the coal cake box to start the tamping of the new coal cake.
[0022] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The above description is only the preferred implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical principles of the present invention and without creative work, they can also make several improvements and modifications, and these changes and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A device for lifting a heavy object by a rocker arm in a small range and lifting the position of the heavy object in a large range, comprising a rocker arm power rod, a rocker arm power rod bearing cap, a rocker arm power rod and a rocker arm connecting shaft, a rocker arm, a rocker arm middle pulley to prevent the steel cable from going out of the groove, a rocker arm internal pulley, a rocker arm internal pulley positioning plate, a rocker arm internal pulley shaft, a rocker arm internal pulley cross bar, a rocker arm end pulley, a rocker arm end pulley support, a rocker arm end pulley to prevent the steel cable from going out of the groove, a cross bar oblique rod fixing steel, a rocker arm internal pulley cross bar fixing seat, a fixed steel reinforcement support, and a rocker arm internal pulley oblique rod; characterized in that: The rocker arm power rod is connected to the rocker arm connecting shaft through the rocker arm power rod, the inner pulley of the rocker arm and the pulley at the end of the rocker arm are connected to the rocker arm through the shaft, and the inner pulley shaft of the rocker arm is connected to the inner pulley cross bar of the rocker arm; the rocker arm power rod moves up and down to drive the rocker arm to rotate up and down, and the steel cable connected to the heavy object passes through the groove of the pulley at the end of the rocker arm and the inner pulley of the rocker arm; The lower part of the rocker arm power rod (1) is connected to a power mechanism. When the power mechanism at the lower part moves up and down, the rocker arm (1) is driven to rotate up and down with the pulley shaft (16) inside the rocker arm as the center of the circle through the rocker arm power rod and the rocker arm connecting shaft (3), and the steel cable in the groove of the pulley (10) at the end of the rocker arm moves up and down, and the steel cable drives the weight at the lower part to move up and down; when the steel cable in the groove of the pulley (6) inside the rocker arm is fixed, the pulley (10) at the end of the rocker arm pulls the weight at the lower part of the steel cable to move up and down; when the steel cable in the groove of the pulley (6) inside the rocker arm is pulled out, the pulley (10) at the end of the rocker arm pulls the weight at the lower part of the steel cable to rise; when the steel cable in the groove of the pulley (6) inside the rocker arm enters, the pulley (10) at the end of the rocker arm pulls the weight at the lower part of the steel cable to descend.
2. A device according to claim 1, wherein a rocker arm can pull a heavy object up and down by a small amount and the position of the heavy object can be raised and lowered by a large amount, characterized in that: The rocker arm power rod is rigid and transmits tension and thrust. The rocker arm power rod can also be flexible and transmit tension without transmitting thrust. The rocker arm is a rigid transmission arm, which transmits the force of the rocker arm power rod to the steel cable in the pulley groove at the end of the rocker arm.
3. The device according to claim 1, wherein the rocker arm can pull a heavy object up and down by a small amount and the position of the heavy object can be raised and lowered by a large amount, is characterized in that: The steel cable passes through the pulley groove of the pulley at the end of the rocker arm, from the upper pulley groove of the pulley at the end of the rocker arm to the upper part of the pulley groove of the pulley inside the rocker arm, and then is led out along the pulley groove of the pulley inside the rocker arm.
4. The device according to claim 1, wherein the rocker arm can pull a heavy object up and down by a small amount and the position of the heavy object can be raised and lowered by a large amount, is characterized in that: The internal pulley cross bar of the rocker arm, the internal pulley diagonal rod of the rocker arm and the cross bar diagonal rod fixing steel material form a fixed bracket, and the rocker arm is supported to rotate up and down through the internal pulley shaft of the rocker arm.
5. The device according to claim 3, wherein the rocker arm can pull a heavy object up and down by a small amount and the position of the heavy object can be raised and lowered by a large amount, is characterized in that: The steel cable in the pulley groove of the pulley at the end of the rocker arm is connected downward to the weight through the left outer pulley groove of the pulley at the end of the rocker arm. The pulley at the end of the rocker arm and the steel cable work together to pull the weight up and down.
6. The device according to claim 3, wherein the rocker arm can pull a heavy object up and down by a small amount and the position of the heavy object can be raised and lowered by a large amount, is characterized in that: The steel cable in the pulley groove of the pulley inside the rocker arm is led out from the upper pulley groove of the pulley inside the rocker arm and along the pulley groove. The led-out steel cable is connected to the steel cable control device. When the steel cable control device fixes the steel cable, the weight moves up and down; when the control device pulls the steel cable, the weight moves up; when the control device releases the steel cable, the weight moves down.