Distance-multiplying telescopic mechanism

Abstract

The utility model relates to the technical field of operation and transportation, in particular to a multiple-distance telescopic mechanism which comprises a telescopic arm, and the telescopic arm is composed of a first telescopic square pipe, a second telescopic square pipe and a third telescopic square pipe. The first telescopic square pipe, the second telescopic square pipe and the third telescopic square pipe are sequentially arranged in a stacked mode from top to bottom, and guide assemblies are connected among the first telescopic square pipe, the second telescopic square pipe and the third telescopic square pipe. A synchronous belt driving assembly driving the first telescopic square pipe and the second telescopic square pipe to stretch out and draw back is connected to one side of the first telescopic square pipe and the second telescopic square pipe. Clamping assemblies used for adjusting the rotating output rate of the synchronous belt driving assembly are further arranged between the first telescopic square pipe and the second telescopic square pipe and between the second telescopic square pipe and the third telescopic square pipe, and the telescopic arm is driven by the synchronous belt driving assembly to stretch or retract in the sliding direction of the guide assembly. The multiple-distance telescopic mechanism can provide a longer conveying distance and a smaller space ratio, so that the transportation efficiency of the tray is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of operation and transportation, especially relates to a double distance telescopic mechanism. BACKGROUND

[0002] With the rapid development of electronic commerce and modern logistics industry, as the basic carrier of goods transportation, the loading and unloading, storage and distribution efficiency of pallets directly affects the cost and efficiency of the overall supply chain. Therefore, the existing pallet production line system is usually equipped with multiple production lines to carry out a series of automatic operations such as loading and unloading, storage and distribution of pallets. In order to cooperate and connect between multiple production lines, a telescopic translation mechanism is usually used to complete the switching of pallets, which makes the space occupied by the production line during production larger.

[0003] Moreover, the telescopic translation mechanism in the prior art can extend the stroke of about 0.6 to 0.7 times the length of the telescopic translation mechanism body. If a telescopic translation mechanism with a longer telescopic stroke is needed, the body will occupy more space, and the transmission speed will be slower. Not only does it affect the arrangement of the site space, but also the production efficiency. SUMMARY

[0004] In order to solve the technical defects proposed in the background art, the purpose of the utility model is to provide a double distance telescopic mechanism, which aims to provide longer conveying distance and less space ratio, thereby effectively improving the transportation efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A double distance telescopic mechanism, comprising a telescopic arm, the telescopic arm is composed of a first telescopic square tube, a second telescopic square tube and a third telescopic square tube; the first telescopic square tube, the second telescopic square tube and the third telescopic square tube are sequentially stacked from top to bottom, and a guide assembly is connected between the first telescopic square tube, the second telescopic square tube and the third telescopic square tube; a synchronous belt drive assembly for driving the telescopic movement of the first telescopic square tube and the second telescopic square tube is connected to one side of the first telescopic square tube and the second telescopic square tube; a clamping assembly for adjusting the rotation speed of the synchronous belt drive assembly is arranged between the first telescopic square tube and the second telescopic square tube and between the second telescopic square tube and the third telescopic square tube; the telescopic arm is folded and contracted or extended and expanded along the sliding direction of the guide assembly under the driving action of the synchronous belt drive assembly.

[0007] Preferably, the guide assembly comprises a linear slide, a sliding block and a guide plate, the linear slide is arranged at the bottom end of the first telescopic square tube and the second telescopic square tube respectively; the sliding block is slidingly connected to the linear slide, and the guide plate is fixedly connected to the sliding block, and one side of the guide plate is connected to the second telescopic square tube and the third telescopic square tube respectively.

[0008] Preferably, the synchronous belt driving assembly comprises a synchronous wheel, a synchronous belt and a driving motor, the synchronous wheel is composed of a driving wheel and a driven wheel, and a plurality of driving wheels and driven wheels are arranged, the plurality of driving wheels are connected in transmission by a chain sprocket, the driven wheels are arranged at two ends of the first telescopic square tube and the second telescopic square tube respectively, the driving wheel and the driven wheel are connected in rotation by the synchronous belt, and the output end of the driving motor is connected in transmission with the driving wheel.

[0009] Preferably, the outer side of the driving wheel and the driven wheel is further provided with a protective cover, and the protective cover is fixedly connected to the first telescopic square tube.

[0010] Preferably, the clamping assembly comprises a clamping seat, a telescopic flat pressing plate and a telescopic tooth pressing plate, one end of the clamping seat is fixed on the telescopic arm, and the other end is connected to the synchronous belt, one end of the telescopic flat pressing plate is connected with a rotating shaft, and the telescopic flat pressing plate is rotatably connected to the two sides of the clamping seat through the rotating shaft, and the telescopic tooth pressing plate is fixed on the telescopic flat pressing plate, and a gap for clamping the synchronous belt is left between the telescopic tooth pressing plate and the telescopic flat pressing plate.

[0011] Preferably, the side of the telescopic tooth pressing plate facing the telescopic flat pressing plate is densely covered with a plurality of pressing teeth, and the plurality of pressing teeth abut the two sides of the synchronous belt respectively to clamp and fix the two ends of the synchronous belt.

[0012] Preferably, the first telescopic square tube is further provided with an anti-collision seat for preventing collision when the clamping assembly is moved, the anti-collision seat is fixed at two ends of the first telescopic square tube, and a buffer rubber pad is connected to the anti-collision seat.

[0013] In summary, the beneficial effects of the utility model are:

[0014] The utility model discloses a telescopic mechanism, which comprises a telescopic arm, a first telescopic square tube, a second telescopic square tube and a third telescopic square tube, a telescopic mechanism driving assembly, a synchronous belt driving assembly and a clamping assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the folding state of the telescopic mechanism of the utility model.

[0016] Figure 2is the structural schematic diagram of the expanded state of the telescopic mechanism of the utility model;

[0017] Figure 3 is Figure 2 is the enlarged view of the structure at a in the middle;

[0018] Figure 4 is the structural schematic diagram of the clamping assembly in the utility model.

[0019] 1, first telescopic square tube; 2, second telescopic square tube; 3, third telescopic square tube; 4, guide assembly; 41, linear slide rail; 42, sliding block; 43, guide plate; 5, synchronous belt driving assembly; 51, synchronous wheel; 511, driving wheel; 512, driven wheel; 52, synchronous belt; 53, driving motor; 6, clamping assembly; 61, clamping seat; 62, telescopic flat pressing plate; 63, telescopic tooth pressing plate; 631, tooth pressing; 7, protective cover; 8, anti-collision seat; 9, buffer rubber pad. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art belong to the scope of protection of the utility model.

[0021] Those skilled in the art should understand that in the disclosure of the utility model, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the utility model.

[0022] In addition, the terms "mounting", "providing", "provided with", "connecting", "connected" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, elements or components. Those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0023] In the description of the utility model, if there is a word such as "several" description, its meaning is one or more, the meaning of multiple is two and above, greater than, less than, exceed etc. Understand as not including this number, above, below, within etc. Understand as including this number. If the first, second, third is described, it is only used for distinguishing technical features for the purpose, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0024] The following will be described in detail in combination with the accompanying drawings Figures 1-4 The embodiment of the utility model one times telescopic mechanism is further explained in detail.

[0025] A times telescopic mechanism, as shown in Figure 1 , 2 It comprises telescopic arm, and the telescopic arm is composed of first telescopic square tube 1, second telescopic square tube 2 and third telescopic square tube 3;First telescopic square tube 1, second telescopic square tube 2 and third telescopic square tube 3 are sequentially stacked from top to bottom, and first telescopic square tube 1, second telescopic square tube 2 and third telescopic square tube 3 are connected with guide assembly 4;Synchronous belt drive assembly 5 for driving its telescopic is connected to one side of first telescopic square tube 1 and second telescopic square tube 2;First telescopic square tube 1 and second telescopic square tube 2, second telescopic square tube 2 and third telescopic square tube 3 are all provided with clamping assembly 6 for adjusting the rotating speed of synchronous belt drive assembly 5, and the telescopic arm is folded and contracted or lengthened and expanded along the sliding direction of guide assembly 4 under the driving action of synchronous belt drive assembly 5.

[0026] Specifically, synchronous belt drive assembly 5 includes synchronous wheel 51, synchronous belt 52 and drive motor 53, synchronous wheel 51 is composed of driving wheel 511 and driven wheel 512, and driving wheel 511 and driven wheel 512 are provided with multiple, multiple driving wheels 511 are transmissionally connected through chain sprocket;Driven wheel 512 is arranged at the two ends of first telescopic square tube 1 and second telescopic square tube 2 respectively, and driven wheel 512 is rotationally connected with driving wheel 511 through synchronous belt 52;The output end of drive motor 53 is transmissionally connected with driving wheel 511. Figure 1, the first telescopic square tube 1 can be fixed on the external machine table, the chain sprocket on the first telescopic square tube 1 is respectively sleeved on the driving wheel 511 and the driven wheel 512, that is, the driving motor 53 synchronously drives the driving wheel 511 and the driven wheel 512 to rotate; and the driven wheel 512 on the second telescopic square tube 2 is in transmission connection with the driven wheel 512 on the first telescopic square tube 1 through the synchronous belt 52, so that when the driving wheel 511 rotates, the synchronous wheel 51 on the whole first telescopic square tube 1 and the second telescopic square tube 2 is driven to rotate, thereby realizing sliding telescoping of the second telescopic square tube 2 driven by the first telescopic square tube 1, the third telescopic square tube 3 is driven to slide and contract by the second telescopic square tube 2, and the telescopic arm is completed.

[0027] Reference Figure 2 , when the telescopic arm is in the unfolded state, the driving motor 53 starts to rotate the synchronous wheel 51 clockwise, and drives each telescopic square tube through the synchronous belt 52, and drives the clamping assembly 6 to move left in the synchronous belt 52 transmission process, so that the second telescopic square tube 2 and the third telescopic square tube 3 move left, at this time, the second telescopic square tube 2 advances a distance relative to the first telescopic square tube 1, and because the pitch circle of the driving wheel 511 and the driven wheel 512 of the chain sprocket chain is the same, the second telescopic square tube 2 and the third telescopic square tube 3 move the same distance left, so the third telescopic square tube 3 also advances a distance relative to the second telescopic square tube 2, at this time, the third telescopic square tube 3 advances two distances relative to the first telescopic square tube 1; thereby completing the stretching work of the telescopic arm. When the servo motor rotates counterclockwise, the synchronous belt 52 on the first telescopic square tube 1 and the synchronous belt 52 on the second telescopic square tube 2 are simultaneously transmitted in the opposite direction, so that the clamping assembly 6 moves right, and the telescopic arm finally returns to the initial position.

[0028] Wherein, when the pitch circle of the driving wheel 511 and the driven wheel 512 is 1:1, the distance of the third telescopic square tube 3 moving relative to the first telescopic square tube 1 is three times the distance of the clamping assembly 6 moving, that is, it can be explained that the maximum transportation stroke of the telescopic arm when it is unfolded can reach about three times of the machine table, thereby realizing long distance transportation, and occupying less space, effectively improving the transportation efficiency.

[0029] In the embodiment, as shown in Figure 3 , the guide assembly 4 includes a straight line sliding rail 41, a sliding block 42 and a guide plate 43, the straight line sliding rail 41 is respectively arranged at the bottom end of the first telescopic square tube 1 and the second telescopic square tube 2; the sliding block 42 is slidably connected to the straight line sliding rail 41, the guide plate 43 is fixedly connected to the sliding block 42, and one side of the guide plate 43 is respectively connected with the second telescopic square tube 2 and the third telescopic square tube 3.

[0030] Specific, straight slide rail 41 is arranged in parallel on the first telescopic square tube 1 and the second telescopic square tube 2, so that the second telescopic square tube 2 and the third telescopic square tube 3 can slide through the slider 42 installed on the straight slide rail 41, so that when the driving motor 53 rotates, the synchronous wheel 51 rotates and drives the synchronous belt 52 to move, thereby driving the second telescopic square tube 2 and the third telescopic square tube 3 to make a circular reciprocating motion along the straight slide rail 41, thereby enabling the telescopic arm to stably perform the telescopic work.

[0031] In order to prevent dust or impurities from entering the synchronous wheel 51 and affecting its transmission efficiency, a protective cover 7 is arranged outside the driving wheel 511 and the driven wheel 512, and the protective cover 7 is fixedly connected to the first telescopic square tube 1. The protective cover 7 can effectively block the entry of dust. Meanwhile, the first telescopic square tube 1 is also provided with an anti-collision seat 8 for preventing the clamping assembly 6 from colliding during movement, and the anti-collision seat 8 is fixed to both ends of the first telescopic square tube 1, and the anti-collision seat 8 is connected with a buffer rubber pad 9.

[0032] In this embodiment, as shown in Figure 4 The clamping assembly 6 includes a clamping seat 61, a telescopic flat pressing plate 62 and a telescopic tooth pressing plate 63. One end of the clamping seat 61 is fixed on the telescopic arm, and the other end is connected to the synchronous belt 52. One end of the telescopic flat pressing plate 62 is connected with a rotating shaft, and the telescopic flat pressing plate 62 is rotatably connected to both sides of the clamping seat 61 through the rotating shaft. The telescopic tooth pressing plate 63 is fixed to the telescopic flat pressing plate 62, and a gap for clamping the synchronous belt 52 is left between the telescopic tooth pressing plate 63 and the telescopic flat pressing plate 62.

[0033] Specifically, the clamping assembly 6 can drive the synchronous belt 52 to move along the first telescopic square tube 1 or the second telescopic square tube 2 when the synchronous belt 52 transmission assembly rotates, so that the second telescopic square tube 2 and the third telescopic square tube 3 slide relative to the first telescopic square tube 1. A plurality of pressing teeth 631 are densely arranged on the side of the telescopic tooth pressing plate 63 facing the telescopic flat pressing plate 62, and the pressing teeth 631 abut on both sides of the synchronous belt 52 to clamp and fix both ends of the synchronous belt 52. The tightness of the synchronous belt 52 can be adjusted by the pressing teeth 631 according to the production requirements, thereby adjusting the telescopic distance of the telescopic arm.

[0034] The working principle of the utility model:

[0035] When the telescopic arm changes from the retracted state to the extended state, the driving motor 53 is controlled to rotate clockwise, and the synchronous wheel 51 is driven to rotate under the action of the driving motor 53, and is transmitted to each telescopic square tube through the synchronous belt 52. In the transmission process of the synchronous belt 52, the clamping assembly 6 is moved to the left, so that the second telescopic square tube 2 and the third telescopic square tube 3 are moved to the left. At this time, the second telescopic square tube 2 advances a distance relative to the first telescopic square tube 1, and because the pitch circles of the driving wheel 511 and the driven wheel 512 of the chain wheel and chain are the same, the second telescopic square tube 2 and the third telescopic square tube 3 move to the left by the same distance, so the third telescopic square tube 3 also advances a distance relative to the second telescopic square tube 2. At this time, the third telescopic square tube 3 advances two distances relative to the first telescopic square tube 1, thereby completing the extension work of the telescopic arm. When the driving motor 53 rotates counterclockwise, the synchronous belts 52 on the first telescopic square tube 1 and the second telescopic square tube 2 are simultaneously transmitted in the opposite direction, so that the clamping assembly 6 moves to the right, thereby driving the telescopic arm to finally return to the initial position.

[0036] The embodiments of the specific embodiment are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, wherein the same parts are indicated by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A telescopic mechanism comprising a telescopic arm, characterized in that, The telescopic arm is composed of a first telescopic square tube, a second telescopic square tube and a third telescopic square tube; the first telescopic square tube, the second telescopic square tube and the third telescopic square tube are sequentially stacked from top to bottom, and a guide assembly is connected between the first telescopic square tube, the second telescopic square tube and the third telescopic square tube; a synchronous belt driving assembly for driving the telescopic movement of the first telescopic square tube and the second telescopic square tube is connected to one side of the first telescopic square tube and the second telescopic square tube; a clamping assembly for adjusting the rotating speed of the synchronous belt driving assembly is arranged between the first telescopic square tube and the second telescopic square tube and between the second telescopic square tube and the third telescopic square tube; the telescopic arm is folded and contracted or extended and expanded along the sliding direction of the guide assembly under the driving action of the synchronous belt driving assembly.

2. The mechanical advantage mechanism of claim 1, wherein, The guide assembly comprises a linear slide rail, a sliding block and a guide plate; the linear slide rail is arranged at the bottom end of the first telescopic square tube and the second telescopic square tube; the sliding block is slidingly connected to the linear slide rail; and the guide plate is fixedly connected to the sliding block, and one side of the guide plate is connected to the second telescopic square tube and the third telescopic square tube, respectively.

3. The pinch mechanism of claim 1, wherein The synchronous belt driving assembly comprises a synchronous wheel, a synchronous belt and a driving motor; the synchronous wheel is composed of a driving wheel and a driven wheel, and a plurality of driving wheels and driven wheels are arranged; the plurality of driving wheels are drivingly connected through a chain sprocket; the driven wheels are arranged at the two ends of the first telescopic square tube and the second telescopic square tube, and the driven wheels and the driving wheels are drivingly connected through the synchronous belt; and the output end of the driving motor is drivingly connected to the driving wheel.

4. The mechanical advantage mechanism of claim 3, wherein, A protective cover is further arranged on the outer side of the driving wheel and the driven wheel, and the protective cover is fixedly connected to the first telescopic square tube.

5. The pinch mechanism of claim 1, wherein, The clamping assembly comprises a clamping seat, a telescopic flat pressing plate and a telescopic tooth pressing plate; one end of the clamping seat is fixed to the telescopic arm, and the other end is connected to the synchronous belt; one end of the telescopic flat pressing plate is connected to a rotating shaft, and the telescopic flat pressing plate is rotatably connected to the two sides of the clamping seat through the rotating shaft; the telescopic tooth pressing plate is fixed to the telescopic flat pressing plate, and a gap for clamping the synchronous belt is formed between the telescopic tooth pressing plate and the telescopic flat pressing plate.

6. The mechanical advantage mechanism of claim 5, wherein, A plurality of pressing teeth are arranged on the side of the telescopic tooth pressing plate facing the telescopic flat pressing plate, and the plurality of pressing teeth abut the two sides of the synchronous belt to clamp and fix the two ends of the synchronous belt.

7. The mechanical advantage mechanism of claim 1, wherein, A bumper seat is further arranged on the first telescopic square tube to prevent collision when the clamping assembly is moved, the bumper seat is fixed to the two ends of the first telescopic square tube, and a buffer rubber pad is connected to the bumper seat.

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