CN208166345U - A kind of scalable front sling - Google Patents

Abstract

The utility model discloses a retractable front-mounted sling, which comprises an outer shell and an inner shell, the outer shell is fixedly connected with the main beam at the lower part, and the inner shell is fixedly connected with the telescopic arm frame at the upper part. The outer shell and the inner shell are connected by an adjustable telescopic mechanism, and when the adjustable telescopic mechanism is driven to move, the outer shell moves up and down relative to the inner shell to realize telescopic adjustment. The utility model is simple and convenient to make, low in cost and easy to use. The existing spreader can be improved by installing an adjustable telescopic structure to solve the problem that the existing spreader cannot move up and down. By operating the rotation of the motor, the up and down moving distance of the spreader can be precisely adjusted. In addition, the left and right sides of the outer casing are provided with intermeshing cylindrical gears and internal rack grooves, so that both sides are evenly stressed and can move up and down synchronously.

Description

A retractable front hanger

technical field

The utility model belongs to a front suspension part, in particular to a suspension.

Background technique

Reach stacker is the abbreviation of container front crane, the English name is reachstacker or reach stacker, referred to as front crane, commonly known as container reach stacker. The reach stacker is a kind of crane used to load and unload containers. It belongs to a kind of lifting equipment, and it can also be said to be a mobile machine. It is generally used for: unloading the container on the truck, stacking the container in the container yard, grabbing the container, moving it to the desired place or loading the container from the yard. The reach stacker is composed of three parts: construction machinery chassis, telescopic boom, and spreader. Among them, the spreader is used as the grabbing part. At present, the movement in all directions up, down, left, and right depends entirely on the movement of the telescopic boom. The telescopic booms are all arranged obliquely. When the spreader needs to move up and down, the telescopic boom has inaccuracy in the positioning operation. Therefore need a kind of spreader that can expand and contract up and down, realizes convenient grabbing and moving.

Utility model content

The purpose of the utility model is to provide a spreader with telescopic function.

In order to achieve the above purpose, the technical solution adopted by the utility model is: it includes a rectangular outer shell and a rectangular inner shell, the outer shell is fixedly connected with the main beam at the lower part, the left and right sides of the outer shell are provided with inner rack grooves, and the inner rack The casing is fixedly connected with the telescopic arm frame on the upper part, the outer casing and the inner casing are connected through an adjustable telescopic mechanism, and a horizontal horizontal plate is arranged in the inner casing. The adjustable telescopic mechanism includes a motor fixed on the horizontal plate of the inner casing, the output shaft of the motor is provided with a driving bevel gear, and the left and right sides of the driving bevel gear are provided with driven cones meshing with the driving bevel gear. gear, the driving bevel gear drives the driven bevel gear to rotate. The left end of the driven bevel gear at the left end is provided with a left shaft, and the left shaft is fixedly connected with the inner housing through a bearing, and the left end of the left shaft is provided with a cylindrical gear, and the cylindrical gear is meshed with the inner rack groove on the left side of the outer housing. When the driven bevel gear at the left end drives the cylindrical gear at the left end to rotate, the outer shell moves up and down. Similarly, the right end of the driven bevel gear at the right end is provided with an upper right shaft, which is fixed on the inner housing through a bearing, and the lower part of the upper right shaft is provided with a lower right shaft, which is fixed on the inner housing through a bearing, and the upper right shaft is fixed on the inner housing through a bearing. The shaft is meshed with the lower right shaft through a spur gear. The right end of the lower right shaft is provided with a cylindrical gear, which is meshed with the inner rack groove on the right side of the outer shell. In the same way, when the driven bevel gear at the right end drives the cylindrical gear at the right end to rotate, the outer shell moves up and down to realize telescopic adjustment.

As a further improvement of the utility model, a guide rail is provided between the outer wall of the inner housing and the inner wall of the outer housing, and the guide rail keeps the inner housing and the outer housing at a relatively constant cross-sectional size, so that the outer housing must go up and down along the guide rail move.

As a further improvement of the utility model, in order to reduce the rotating speed and increase the torque, a reducer connected to it is provided under the motor, and the reducer is fixed on the top of the horizontal plate of the inner casing by bolts, and the output of the active bevel gear and the reducer The shaft is fixedly connected.

As a further improvement of the utility model, in order to prevent dust and rainwater from entering the outer shell, a dust cover is provided outside the inner rack groove, and the dust cover is fixed on the outer shell by bolts.

As a further improvement of the utility model, the bearing is a deep groove ball bearing, which is fixed by a snap ring, and has dust-proof covers at both ends to prevent dust from entering and lubricating grease in the bearing from losing.

As a further improvement of the utility model, the motor is a servo motor, which can control the speed and position accuracy very accurately, and can convert the voltage signal into torque and rotational speed to drive the spreader to move up and down. The rotor speed of the servo motor is controlled by the input signal and can respond quickly.

As a further improvement of the utility model, the reducer is a cycloid reducer. It can achieve a high reduction ratio of 1:87 and a high-efficiency single-stage transmission of more than 90%, and the pin-tooth meshing system is sleeve-type rolling friction, and the meshing surface has no relative sliding, so the first-stage reduction efficiency reaches 94%. Compact structure, small size, stable operation, low noise, cycloidal pin teeth, large number of meshing teeth, large overlapping coefficient, and mechanism of machine parts balance, so that vibration and noise are limited to a minimum. There are many pairs of teeth in contact with each other during operation, the degree of overlap is large, the operation is stable, the overload capacity is strong, the vibration and noise are low, and the models of various specifications have low noise. It is reliable in use, long in life, and has high strength, and some transmission contacts adopt rolling friction, so it is durable and long in life. In addition, the cycloidal teeth and the pin gear sleeve mesh and transmit to the pin teeth to form a rolling friction pair. The friction coefficient is small, so that there is no relative sliding in the meshing area, and the wear is extremely small, so it is durable. Reasonable design, convenient maintenance, easy disassembly and installation, minimum number of parts and simple lubrication. Compared with other reducers of the same power, the weight and volume are more than 1/3 smaller. Because of the planetary transmission, the input shaft and output shaft are on the same axis. to obtain the smallest possible size.

The beneficial effects of the utility model:

The production is simple and convenient, the cost is low, and the use is convenient. Improve the existing spreader and install an adjustable telescopic structure to solve the problem that the existing spreader cannot move up and down, so that the operator can operate the motor in the cab Rotate to precisely adjust the up and down moving distance of the spreader. In addition, the left and right sides of the outer casing are provided with intermeshing cylindrical gears and internal rack grooves, so that both sides are evenly stressed and can move up and down synchronously.

Description of drawings

Fig. 1 is a schematic diagram of the main view structure of the utility model;

Fig. 2 is a schematic diagram of the A-A sectional structure of Fig. 1;

FIG. 3 is a schematic structural diagram of the left view of FIG. 1 .

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings. The description of this part is only exemplary and explanatory, and should not have any influence on the protection scope of the utility model. restrictive effect.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" are Based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and thus should not be construed as limitations on the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations. As shown in Fig. 1-Fig. 3, the specific structure of the present utility model is: comprise rectangular outer casing 1 and rectangular inner casing 3, outer casing 1 is fixedly connected with the main beam 2 of its lower part, the left and right sides of outer casing 1 There is an inner rack groove 11, and the inner shell 3 is fixedly connected with the upper telescopic arm frame. The outer shell 1 and the inner shell 3 are connected by an adjustable telescopic mechanism, and the inner shell 3 is provided with a horizontal horizontal plate . Between the outer wall of the inner casing 3 and the inner wall of the outer casing 1, a guide rail 6 is provided, and the guide rail 6 keeps the inner casing 3 and the outer casing 1 at a relatively constant cross-sectional size, so that the outer casing 1 must move up and down along the guide rail 6 .

The adjustable telescopic mechanism includes a speed reducer 4 fixed on the horizontal plate of the inner casing 3, and the speed reducer 4 is a cycloidal pinwheel speed reducer. It can achieve a high reduction ratio of 1:87 and a high-efficiency single-stage transmission of more than 90%, and the pin-tooth meshing system has sleeve-type rolling friction, and the meshing surface has no relative sliding, so the first-stage reduction efficiency reaches 94%. Compact structure, small size, stable operation, low noise, cycloidal pin teeth, large number of meshing teeth, large overlapping coefficient, and mechanism of machine parts balance, so that vibration and noise are limited to a minimum. There are many pairs of teeth in contact with each other during operation, the degree of overlap is large, the operation is stable, the overload capacity is strong, the vibration and noise are low, and the models of various specifications have low noise. It is reliable in use, long in life, and has high strength, and some transmission contacts adopt rolling friction, so it is durable and long in life. In addition, the cycloidal teeth and the pin gear sleeve mesh and transmit to the pin teeth to form a rolling friction pair. The friction coefficient is small, so that there is no relative sliding in the meshing area, and the wear is extremely small, so it is durable. Reasonable design, convenient maintenance, easy disassembly and installation, minimum number of parts and simple lubrication. Compared with other reducers of the same power, the weight and volume are more than 1/3 smaller. Because of the planetary transmission, the input shaft and output shaft are on the same axis. to obtain the smallest possible size. The top of the reducer 4 is provided with a motor 5, the motor 5 is a servo motor, the servo motor can control the speed, the position accuracy is very accurate, and the voltage signal can be converted into torque and rotating speed to drive the spreader to move up and down. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. The output shaft of the reducer 4 is provided with a driving bevel gear 7, and the left and right sides of the driving bevel gear 7 are provided with a driven bevel gear 8 meshing with the driving bevel gear 7, and the driving bevel gear 7 drives the driven bevel gear 8 to rotate . The left end of the driven bevel gear 8 at the left end is provided with a left shaft 9, and the left shaft 9 is fixedly connected with the inner casing 3 through a bearing 13. The left end of the left shaft 9 is provided with a cylindrical gear 10, and the cylindrical gear 10 is connected with the left The inner rack groove 11 on the side is meshingly connected. When the driven bevel gear 8 at the left end drives the cylindrical gear 10 at the left end to rotate, thereby making the outer casing 1 move up and down. In the same way, the right end of the driven bevel gear 8 at the right end is provided with a right upper shaft 12, which is fixed on the inner casing 3 through a bearing 13, and the bottom of the right upper shaft 12 is provided with a right lower shaft 14, and the right lower shaft 14 passes through a bearing 13 is fixed on the inner casing 3, and the upper right shaft 12 and the lower right shaft 14 are meshed and connected through the cylindrical gear 10. The right end of the lower right shaft 14 is provided with a cylindrical gear 10 , and the cylindrical gear 10 is engaged with the inner rack groove 11 on the right side of the outer casing 1 . Similarly, when the driven bevel gear 8 at the right end drives the cylindrical gear 10 at the right end to rotate, the outer casing 1 moves up and down to realize telescopic adjustment. All the above-mentioned bearings 13 are deep groove ball bearings, which are fixed by snap rings and have dust covers at both ends to prevent the entry of dust and the loss of lubricating grease in the bearings.

In order to prevent the outer casing 1 from entering dust and rainwater, a dustproof cover 15 is provided outside the inner rack groove 11, and the dustproof cover 15 is fixed on the outer casing 1 by bolts.

The beneficial effects of the utility model:

The production is simple and convenient, the cost is low, and the use is convenient. Improve the existing spreader and install an adjustable telescopic structure to solve the problem that the existing spreader cannot move up and down, so that the operator can operate the motor in the cab Rotate to precisely adjust the up and down moving distance of the spreader. In addition, the left and right sides of the outer casing are provided with intermeshing cylindrical gears and internal rack grooves, so that both sides are evenly stressed and can move up and down synchronously.

It should be noted that, in this document, the terms "comprising", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or apparatus.

In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above examples is only used to help understand the method and core idea of the present invention. The above is only a preferred embodiment of the utility model, it should be pointed out that due to the limitation of literal expression, objectively there are infinite specific structures, for those of ordinary skill in the art, without departing from the principle of the utility model Under the premise of the invention, some improvements, modifications or changes can also be made, and the above technical features can also be combined in an appropriate way; these improvements, modifications, or combinations, or the ideas and technical solutions of the utility model can be directly applied without improvement In other occasions, all should be regarded as the protection scope of the present utility model.

Claims (7)

1. a telescopic front loader, is characterized in that: comprise rectangular outer shell (1) and rectangular inner shell (2), outer shell (1) is fixedly connected with the girder of its bottom, outer shell (1) ) are provided with inner rack grooves (11) on the left and right sides, and the inner housing (3) is fixedly connected with the upper telescopic arm frame, and the outer housing (1) and the inner housing (3) are connected by an adjustable telescopic mechanism , the inner casing (3) is provided with a horizontally arranged horizontal plate; the adjustable telescopic mechanism includes a motor (5) fixed on the horizontal plate of the inner casing (3), and the output shaft of the motor (5) The driving bevel gear (7) is arranged on the top, the left and right sides of the driving bevel gear (7) are provided with the driven bevel gear (8) meshing with the driving bevel gear (7), and the left end of the driven bevel gear (8) at the left end A left shaft (9) is provided, and the left shaft (9) is fixedly connected with the inner housing (3) through a bearing (13). The left end of the left shaft (9) is provided with a cylindrical gear (10), and the cylindrical gear (10) is connected to the outer shell The internal rack groove (11) on the left side on the body (1) is meshed and connected; the right end of the driven bevel gear (8) at the right end is provided with a right upper shaft (12), and the right upper shaft (12) is fixed on the On the inner casing (3), the bottom of the upper right shaft (12) is provided with a lower right shaft (14), and the lower right shaft (14) is fixed on the inner casing (3) through a bearing (13), and the upper right shaft (12) It is meshed with the lower right shaft (14) through a cylindrical gear (10); the right end of the lower right shaft (14) is provided with a cylindrical gear (10), and the cylindrical gear (10) is connected to the inner side of the right side on the outer casing (1). The rack groove (11) is meshedly connected. 2. A kind of retractable reachstacker spreader according to claim 1, is characterized in that: guide rail (6) is provided between the outer wall of described inner housing (3) and the inner wall of outer housing (1). 3. a kind of retractable reach hanger spreader according to claim 2, it is characterized in that: the below of described motor is provided with the speed reducer (4) that is connected with it, and speed reducer (4) is fixed in inner casing by bolt On the top of the horizontal plate of the body (3), the driving bevel gear (7) is fixedly connected with the output shaft of the reducer (4). 4. A kind of retractable front hanger spreader according to claim 3, is characterized in that: the outside of described inner rack groove (11) is provided with dust cover (15), and dust cover (15) passes bolt Fastened to the outer housing (1). 5. A kind of retractable reachstacker spreader according to claim 4, is characterized in that: described bearing (13) is deep groove ball bearing, is fixed by snap ring, and two ends are with dust cover. 6. A kind of telescopic reach hanger spreader according to claim 5, is characterized in that: described motor (5) is servomotor. 7. A kind of telescopic reach stacker spreader according to claim 6, is characterized in that: described speed reducer (4) is cycloidal pin wheel speed reducer.