CN103466307B - Large-stroke jacking mechanism - Google Patents

Abstract

The invention relates to the technical field of jacking equipment, in particular to a large-stroke jacking mechanism, which comprises a top plate, a jacking bottom bridge, an X-shaped hinged support mechanism, a motor driving mechanism and a stroke switch or a photoelectric switch for controlling stroke height; the X-shaped hinge support mechanism comprises two groups of outer hinge supports and inner hinge supports, the middle parts of the two groups of outer hinge supports and the middle part of the inner hinge support are hinged through a through shaft to form two X-shaped hinge structures, the lifting of the variable stroke can be realized at the local position, and the requirements of different strokes are met.

Description

Large stroke jacking mechanism

technical field

The invention relates to the technical field of jacking equipment, in particular to a large-stroke jacking mechanism.

Background technique

The jacking mechanism is a special equipment widely used in automatic assembly lines. Its main function is to lift and transfer the load. It is a transitional mechanism for moving products from one line to another. The general jacking mechanism is composed of It is composed of a lifting cylinder and a jacking tray. The stroke of the jacking mechanism is determined by the stroke of the cylinder. It is characterized by ①fast lifting speed, ②compact structure, and ③reliable operation. But its downside is that there is only one itinerary. But there is another situation in production that the stroke that needs to be lifted is variable, that is, multiple strokes within a certain range are required. In this case, it is difficult to realize cylinder jacking.

Contents of the invention

The object of the present invention is to provide a large-stroke jacking mechanism for the deficiencies of the prior art, which can realize variable-stroke jacking at a local position and meet the requirements of different strokes.

In order to achieve the above object, the present invention adopts the following technical solutions.

Large-stroke jacking mechanism, which includes a top plate, a jacking bottom bridge, an "X" type hinge mechanism, a motor drive mechanism, and a travel switch or photoelectric switch for controlling the stroke height; the "X" type hinge mechanism includes Two sets of outer hinge brackets and inner hinge brackets, the middle parts of the two sets of outer hinge brackets and inner hinge brackets are hinged through a shaft to form two "X" hinge structures, the left end of the inner hinge brackets is hinged The left end of the inner hinge support is hinged to the top plate, the right end of the inner hinge support is connected to the top plate so that it can move left and right, and the right end of the outer hinge support is connected to the jacking bottom bridge so that it can move left and right; a connecting shaft is connected between the right ends of the two sets of outer hinge supports , the motor drive mechanism drives the connecting shaft to move left and right along the jacking bottom bridge.

The motor drive mechanism includes a reduction motor, a driving sprocket, a driving chain, a driving shaft, a driven sprocket, a driven chain, a transmission sprocket, and a driven shaft; the reduction motor is installed on the jacking bottom bridge, and the reduction motor is connected to The driving sprocket, the driving sprocket is connected to the driven sprocket through the driving chain, and the driven sprocket is fixedly installed on the driving shaft. The driven chain is connected between the transmission sprockets, and the driven chain drives and connects the connecting shaft.

The connecting shaft is equipped with a link head, and the link head is provided with a limiting ring, and the driven chain is connected to the link head.

Both ends of the connecting shaft are provided with bottom guide wheels, and the jacking bottom bridge is provided with bottom bridge guide grooves, and the bottom guide wheels are slidably connected to the bottom bridge guide grooves.

The right end of the inner hinge bracket is provided with a top guide wheel, the top plate is provided with a top plate guide groove, and the top guide wheel is slidably connected to the top plate guide groove.

The outer sides of the bottom guide wheel and the top guide wheel are all provided with a guide wheel pressing plate.

The jacking bottom bridge is provided with several thin cylinders, and the thin cylinders are provided with cylinder buffer heads, and the cylinder buffer heads are located under the top plate.

An elastic protective cover is arranged between the side of the top plate and the side of the jacking bottom bridge.

The beneficial effects of the present invention are: the large-stroke jacking mechanism described in the present invention includes a top plate, a jacking bottom bridge, an "X" type hinge support mechanism, a motor drive mechanism, and a travel switch or a photoelectric stroke for controlling the height of the stroke. Switch; the "X" type hinge support mechanism includes two sets of outer hinge brackets and inner hinge brackets, the middle parts of the two sets of outer hinge brackets and inner hinge brackets are hinged to form two "X" hinge structures through shafts, and the inner hinge brackets The left end of the outer hinge bracket is hinged to the jacking bottom bridge, the left end of the outer hinge bracket is hinged to the top plate, the right end of the inner hinge bracket is connected to the top plate so that it can move left and right, and the right end of the outer hinge bracket is connected to the jacking bottom bridge so that it can move left and right; the two A connecting shaft is connected between the right ends of the outer hinge brackets of the group, and the motor drive mechanism drives the connecting shaft to move left and right along the jacking bottom bridge, which can realize variable stroke jacking at a local position to meet the requirements of different strokes.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic structural view of the present invention in a raised state.

Fig. 3 is a top view of the "X" type hinge mechanism in the present invention.

Fig. 4 is a structural schematic diagram of the motor driving mechanism of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 to 4, the large stroke jacking mechanism of the present invention includes a top plate 1, a jacking bottom bridge 2, an "X" type hinge mechanism 5, a motor drive mechanism 3, and a height travel switch or photoelectric switch; the "X" type hinge support mechanism 5 includes two sets of outer hinge brackets 50 and inner hinge brackets 51 arranged in parallel, and the middle parts of the two sets of outer hinge brackets 50 and inner hinge brackets 51 pass through the shaft 52 are hinged to form two "X" hinge structures, the left end of the inner hinge bracket 51 is hinged to the jacking bottom bridge 2, the left end of the outer hinge bracket 50 is hinged to the top plate 1, and the right end of the inner hinge bracket 51 is connected to the top plate so that it can move left and right 1. The right end of the outer hinge bracket 50 is connected to the jacking bottom bridge 2 so that it can move left and right; a connecting shaft 55 is connected between the right ends of the two sets of outer hinge brackets 50, and the motor drive mechanism 3 drives the connecting shaft 55 along the top Lifting bottom bridge 2 moves left and right. Further, an elastic protective cover 4 is provided between the side of the top plate 1 and the side of the jacking bottom bridge 2, and the elastic protective cover 4 can play a protective role to avoid personal accidents.

As a preferred embodiment, the motor drive mechanism 3 includes a reduction motor 30, a driving sprocket 31, a driving chain 32, a driving shaft 35, a driven sprocket 33, a driven chain 36, a driving sprocket 34, and a driven shaft 37 The deceleration motor 30 is installed on the jacking bottom bridge 2, the deceleration motor 30 is connected to the driving sprocket 31, the driving sprocket 31 is connected to the driven sprocket 33 through the driving chain 32, and the driven sprocket 33 is fixedly installed on the driving shaft 35, Driving shaft 35 and driven shaft 37 are all provided with drive sprocket 34, described driven chain 36 is connected between the drive sprocket 34 of driving shaft 35 and the drive sprocket 34 of driven shaft 37, and driven chain 36 drives The connecting shaft 55 is connected. The motor drive mechanism 3 can replace the commonly used jacking cylinder to complete the jacking action. It has a simple and compact structure, stable operation, and accurate stroke precision control.

As a preferred embodiment, the connecting shaft 55 is equipped with a link head 54, and the link head is provided with a limit ring 56, and the driven chain 36 is connected to the link head 54. When the driven chain 36 moves, it can pass through the link head. 54 drives the connecting shaft 55 to move left and right, which has the advantages of simple and compact structure and stable operation.

As a preferred embodiment, both ends of the connecting shaft 55 are provided with bottom guide wheels 53, and the bottom bridge 2 is provided with bottom bridge guide grooves, and the bottom guide wheels 53 are slidably connected to the bottom bridge guide grooves. The right end of the inner hinge bracket 51 is provided with a top guide wheel 8, the top plate 1 is provided with a top plate guide groove, and the top guide wheel 8 is slidably connected to the top plate guide groove. The bottom guide wheel 53 and the top guide wheel 8 are conducive to the smooth action of the "X" type hinge support mechanism 5 in the compressed and raised states. Further, the outer sides of the bottom guide wheel 53 and the top guide wheel 8 are provided with a guide wheel pressure plate 9, the guide wheel pressure plate 9 can prevent the bottom guide wheel 53 and the top guide wheel 8 from falling off, increasing the working stability.

As a preferred embodiment, the jacking bottom bridge 2 is provided with several thin cylinders 7, and the thin cylinders 7 are provided with cylinder buffer heads 6, and the cylinder buffer heads 6 are located below the top plate 1. When the "X" type hinge support mechanism 5 is compressed state, the cylinder buffer head 6 of the thin cylinder 7 contacts the top plate 1 to play the role of buffering and bearing, avoiding damage to the "X" type hinge mechanism 5, and also improves the working stability and bearing capacity.

The working principle of the large-stroke jacking mechanism of the present invention is as follows: in the original state, the highest point of the jacking is lower than the lower surface of the tooling plate, and does not collide with the lower tooling plate. When it needs to be lifted, the reduction motor 30 starts , the drive sprocket 31 drives the drive chain 32 to rotate the drive shaft 35, the drive sprocket 34 on the drive shaft 35 is connected with the drive sprocket 34 on the driven shaft 37 through the driven chain 36, and the middle is connected to the outer hinge bracket 50 The connecting shaft 55 forms a closure. When the driving shaft 35 rotates counterclockwise, the bottom guide wheel 53 and the top guide wheel 8 of the "X" type hinge mechanism 5 move horizontally to the left along the bottom bridge guide groove and the top plate guide groove respectively. Thereby drive the hinge bracket to rise. If the motor is reversed, the hinge bracket is lowered, which converts a rotational motion into an up and down motion. When the weight of the product is too heavy, the cylinder starts synchronously with the motor when the motor starts, increasing the lifting force. The height of the lift can be controlled by a travel switch or a photoelectric switch, so that different strokes can be achieved. The large-stroke jacking mechanism of the present invention uses a motor and a hinged support mechanism to realize multiple strokes, which solves the problem of realizing variable strokes at local positions. The lifting problem of the stroke has a particularly obvious advantage in the case of a small space. If a conveying mechanism is added to this lifting, multi-layer transportation in a small range can be realized, which solves the problem that the elevator cannot be installed due to its large volume .

Certainly, the present invention can also have many other production methods, and those skilled in the art can make corresponding changes and deformations according to the present invention without departing from the spirit and essence of the present invention. The above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the patent application scope of the present invention are included in the protection scope of the patent of the present invention.

Claims (4)

1. The large stroke jacking mechanism is characterized in that it includes a top plate (1), a jacking bottom bridge (2), an "X" type hinge support mechanism (5), a motor drive mechanism (3), and a stroke control mechanism. height travel switch or photoelectric switch; the "X" type hinge support mechanism (5) includes two sets of outer hinge supports (50) and inner hinge supports (51), two sets of outer hinge supports (50) and inner hinge supports ( The middle part of 51) is hinged through the through shaft (52) to form two "X" hinge structures, the left end of the inner hinge bracket (51) is hinged to the jacking bottom bridge (2), and the left end of the outer hinge bracket (50) is hinged to the top plate (1), the right end of the inner hinge bracket (51) is connected to the top plate (1) to move left and right, and the right end of the outer hinge bracket (50) is connected to the jacking bottom bridge (2) to move left and right; the two sets of outer A connecting shaft (55) is connected between the right ends of the hinge bracket (50), and the motor drive mechanism (3) drives the connecting shaft (55) to move left and right along the jacking bottom bridge (2); The motor driving mechanism (3) includes a reduction motor (30), a driving sprocket (31), a driving chain (32), a driving shaft (35), a driven sprocket (33), a driven chain (36), a transmission sprocket (34), driven shaft (37); the deceleration motor (30) is installed on the jacking bottom bridge (2), the deceleration motor (30) is connected to the driving sprocket (31), and the driving sprocket (31) passes through The driving chain (32) is connected to the driven sprocket (33), and the driven sprocket (33) is fixedly installed on the driving shaft (35), and the driving shaft (35) and the driven shaft (37) are all provided with a driving sprocket (34 ), the driven chain (36) is connected between the drive sprocket (34) of the driving shaft (35) and the drive sprocket (34) of the driven shaft (37), and the driven chain (36) is connected by drive The connecting shaft (55); The connecting shaft (55) is equipped with a link joint (54), the joint joint is provided with a limiting ring (56), and the driven chain (36) is connected to the link joint (54); The two ends of the connecting shaft (55) are provided with bottom guide wheels (53), and the jacking bottom bridge (2) is provided with bottom bridge guide grooves, and the bottom guide wheels (53) are slidably connected to the bottom bridge guide grooves; The right end of the inner hinge bracket (51) is provided with a top guide wheel (8), the top plate (1) is provided with a top plate guide groove, and the top guide wheel (8) is slidably connected to the top plate guide groove; In the original state, the highest point of the jacking is lower than the lower surface of the tooling plate, and does not collide with the lower tooling plate. When it needs to be lifted, the reduction motor (30) starts, and the driving sprocket (31) drives the driving chain (32) , so that the drive shaft (35) rotates, the transmission sprocket (34) on the drive shaft (35) is connected with the drive sprocket (34) on the driven shaft (37) through the driven chain (36), and the middle is connected to the outer The connecting shaft (55) of the hinge support (50) constitutes a closure. When the driving shaft (35) rotates counterclockwise, the bottom guide wheel (53) and top guide wheel (8) of the "X" type hinge support mechanism (5) Move horizontally to the left along the guide groove of the bottom bridge and the guide groove of the top plate respectively, so as to drive the hinge bracket to rise; if the motor reverses, the hinge bracket will descend, thus converting a rotating motion into an up and down motion; when the weight of the product is too heavy , The cylinder starts synchronously with the motor when the motor starts, increasing the lifting force. 2. The large-stroke jacking mechanism according to claim 1, characterized in that: the outer sides of the bottom guide wheel (53) and the top guide wheel (8) are both provided with a guide wheel pressure plate (9). 3. The large-stroke jacking mechanism according to claim 2, characterized in that: the jacking bottom bridge (2) is provided with several thin cylinders (7), and the thin cylinders (7) are provided with cylinder buffer heads (6) , the cylinder buffer head (6) is located under the top plate (1). 4. The large-stroke jacking mechanism according to claim 3, characterized in that: an elastic protective cover (4) is arranged between the side of the top plate (1) and the side of the jacking bottom bridge (2).