Telescopic fork and shifting finger mechanism thereof

Abstract

The utility model discloses a telescopic fork and a shifting finger mechanism thereof, and the shifting finger mechanism comprises a mounting seat which is provided with a first side plate, a second side plate and a third side plate; the driving device is arranged on the first side plate, and the output end of the driving device penetrates through the first side plate; the shifting finger is a fixed shaft rotatably arranged on the second side plate, and a through hole is formed in the shifting finger; the rotating shaft is an L-shaped piece, the first end of the rotating shaft is fixedly connected with the output end of the driving device, and the second end of the rotating shaft is inserted into the through hole in the shifting finger; and the buffer blocking piece is arranged on the mounting seat and the third side plate and is used for carrying out limiting control on the rotating shaft. According to the telescopic fork and the shifting finger mechanism thereof, the driving device can drive the rotating shaft to rotate, the rotating shaft can shift the shifting finger to perform fixed-axis rotation around the fixed shaft, the stress of the shifting finger is distributed on the fixed shaft and the rotating shaft, and the bearing capacity and practicability of the whole shifting finger structure can be improved; therefore, the shifting finger structure is longer in service life and lower in cost.

Description

Technical Field

[0001] The utility model relates to the field of telescopic fork manufacturing or transmission technology, and more specifically, to a finger shifting mechanism. In addition, the utility model also relates to a telescopic fork comprising the finger shifting mechanism. Background Art

[0002] The existing finger structure on the telescopic fork adopts a motor to drive the coupling, the coupling is installed on the fixed seat, one end of the finger shaft passes through the fixed seat and is connected to the coupling, and the other end is connected to the finger. The rotation of the motor shaft drives the finger to rotate, but the force on the finger is concentrated on the finger shaft, the load-bearing capacity is low, the structural parts are complex, the size is large, and the cost is high.

[0003] In summary, how to improve the load-bearing capacity of the finger shifting mechanism is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a finger-shifting mechanism, which drives a rotating shaft to rotate through a driving device, and the rotating shaft can drive the finger to rotate around a fixed axis. The force on the finger is concentrated on the fixed axis, and the finger has a strong load-bearing capacity, a simple structure, and a low cost.

[0005] Another object of the utility model is to provide a telescopic fork including the finger shifting mechanism.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A finger-shifting mechanism, comprising:

[0008] A mounting seat, wherein the mounting seat is provided with a first side plate, a second side plate and a third side plate;

[0009] A driving device, disposed on the first side plate, wherein an output end of the driving device passes through the first side plate;

[0010] A finger, rotatably arranged on a fixed shaft on the second side plate, wherein a through hole is arranged on the finger;

[0011] The rotating shaft is an L-shaped member, the first end of which is fixedly connected to the output end of the driving device, and the second end of which is inserted into the through hole on the finger;

[0012] A buffer blocking member is provided on the mounting seat and the third side plate, and the buffer blocking member is used for performing position limiting control on the rotating shaft.

[0013] Preferably, a detection switch is further provided on the first side panel, and the detection switch includes an action detection switch and a recovery detection switch, and the action detection switch and the recovery detection switch are connected to a control system, and the control system is connected to the driving device.

[0014] Preferably, the rotating shaft comprises a fixing plate and a toggle shaft which are perpendicular to each other, the fixing plate is fixedly connected to the output end of the driving device, and the toggle shaft passes through the fixing plate and is fixedly connected to the fixing plate.

[0015] Preferably, the dial shaft is a columnar structure, and the diameter of the dial shaft is smaller than the diameter of the through hole on the dial finger.

[0016] Preferably, the fixed shaft is perpendicular to the second side plate and extends in the direction of the first side plate, an oil-free bushing is sleeved on the outer periphery of the fixed shaft, and the finger sleeve is arranged on the oil-free bushing.

[0017] Preferably, a shaft end baffle is fixed to one end of the fixed shaft away from the second side plate, and the shaft end baffle is fixed to the fixed shaft through a shaft end fixing assembly, and the shaft end baffle is used to prevent the finger from falling off the oil-free bushing.

[0018] Preferably, the first side plate is fixedly connected to the third side plate, the first side plate is arranged in parallel with the second side plate, and a gap is provided between the third side plate and the second side plate.

[0019] Preferably, the driving device is an actuator motor, and the driving device is fixed to the first side plate via a fixing mechanism, and a plurality of the fixing mechanisms are provided.

[0020] Preferably, a plurality of weight-reducing holes are provided on the finger, and the weight-reducing holes are used to reduce the weight of the finger.

[0021] A telescopic fork comprises a finger mechanism, wherein the finger mechanism is any one of the above-mentioned finger mechanisms.

[0022] The utility model provides a finger shifting mechanism, wherein a first side plate, a second side plate and a third side plate are arranged on the end surface of a mounting seat of the finger shifting mechanism, a driving device is arranged on the first side plate, a fixed shaft is arranged on the second side plate, a finger is sleeved on the fixed shaft, an output end of the driving device is fixedly connected with a rotating shaft, the rotating shaft is an L-shaped member, and the other end is inserted into a through hole on the finger shifting member, the driving device can drive the rotating shaft to rotate, and the rotating shaft can shift the finger shifting member to rotate around the fixed shaft, and the force on the finger shifting member is distributed on the fixed shaft and the rotating shaft, which can improve the bearing capacity and practicality of the entire finger shifting structure, so that the life of the finger shifting structure is longer and the cost is lower. In addition, the driving device is not directly subjected to force, so the driving device can be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 A structural schematic diagram of the finger-shifting mechanism provided by the utility model;

[0025] Figure 2 A side view of the finger-shifting mechanism provided by the utility model;

[0026] Figure 3 A side sectional view of the finger-shifting mechanism provided by the utility model;

[0027] Figure 4 A top view of the finger-shifting mechanism provided by the utility model;

[0028] Figure 5 A front view of the finger-shifting mechanism provided by the utility model;

[0029] Figure 6 A schematic diagram of the structure of the mounting base provided by the utility model;

[0030] Figure 7 This is a schematic structural diagram of the rotating shaft provided by the utility model.

[0031] Figures 1 to 7 , the reference numerals include:

[0032] 1 is a driving device, 2 is a mounting seat, 3 is a dial finger, 4 is a rotating shaft, 4-1 is a fixing plate, 4-2 is a toggle shaft, 5 is a buffer blocking member, 6 is a detection switch, 6-1 is an action detection switch, 6-2 is a recovery detection switch, 7 is a shaft end baffle, 8 is an oil-free bushing, 9 is a fixing mechanism, 10 is a shaft end fixing assembly, 11 is a fixed shaft, and 12 is a weight reduction hole. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The core of the utility model is to provide a finger shifting mechanism, which has strong bearing capacity, simple structure and low cost.

[0035] Another core of the utility model is to provide a telescopic fork including the finger shifting mechanism.

[0036] It should be noted that the directions or positional relationships indicated by “upper”, “lower”, “front”, “back”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0037] The present application provides a finger-shifting mechanism, which comprises: a mounting seat 2, a driving device 1, a finger-shifting finger 3, a rotating shaft 4 and a buffering blocking member 5;

[0038] Wherein, the mounting seat 2 is provided with a first side plate, a second side plate and a third side plate;

[0039] The driving device 1 is arranged on the first side plate, and the output end of the driving device 1 passes through the first side plate;

[0040] The finger 3 is rotatably arranged on the fixed shaft 11 on the second side plate, and a through hole is arranged on the finger 3;

[0041] The rotating shaft 4 is an L-shaped member, a first end of the rotating shaft 4 is fixedly connected to the output end of the driving device 1, and a second end of the rotating shaft 4 is inserted into a through hole on the finger 3;

[0042] The buffer blocking member 5 is disposed on the mounting seat 2 and the third side plate, and the buffer blocking member 5 is used for performing position limiting control on the rotating shaft 4 .

[0043] For details, please refer to the attached Figure 1 , Attachment Figure 2 With attached Figure 3The mounting seat 2 is a rectangular plate-shaped component, and the outer periphery of the mounting seat 2 is provided with a first side plate, a second side plate and a third side plate perpendicular thereto, the driving device 1 is fixed to the first side plate, the second side plate is provided corresponding to the first side plate, and a fixed shaft 11 is provided on the second side plate, the finger 3 is an L-shaped or T-shaped component, when the finger 3 is L-shaped, its bending portion is provided with a through hole corresponding to the fixed shaft 11, and the end of the bending portion is provided with a through hole, when the finger 3 is a T-shaped component, the connecting portion of the structure at both ends is provided with a through hole corresponding to the fixed shaft 11, and the ends of the two shorter sides are also provided with through holes, the finger 3 is sleeved on the outer periphery of the fixed shaft 11 through the through hole, and the rotating shaft 4 is inserted into the through hole of the finger 3 It is arranged that the output end of the driving device 1 is fixedly connected with the rotating shaft 4, so that when the driving device 1 is started, the rotating shaft 4 can drive the finger 3 to rotate around the fixed shaft 11. During the rotation of the finger 3, the force of the finger 3 is distributed on the fixed shaft 11 and the rotating shaft 4, so that the carrying capacity of the finger mechanism is improved, and its service life is longer. The overall structure is relatively simple, the size is small and the cost is low. In addition, a buffer blocking member 5 is also provided on the mounting seat 2 and the third side plate. The buffer blocking member 5 is a tubular component that can limit the movement range of the rotating shaft 4. After the driving device 1 is turned off, the buffer component 5 can absorb the overshoot action after the driving device 1 stops, thereby protecting the driving device 1.

[0044] Based on the above embodiment, a detection switch 6 is further provided on the first side panel. The detection switch 6 includes an action detection switch 6-1 and a recovery detection switch 6-2. The action detection switch 6-1 and the recovery detection switch 6-2 are connected to the control system, and the control system is connected to the driving device 1.

[0045] For details, please refer to the attached Figure 4 With attached Figure 5 , an action detection switch 6-1 and a recovery detection switch 6-2 are provided on the first side panel. The action detection switch 6-1 is set at the initial position of the rotating shaft 4, and the recovery detection switch 6-2 is set at the maximum stroke position of the rotating shaft 4. The recovery detection switch 6-2 is used to detect whether the rotating shaft 4 has reached the position where it needs to be restored. When it is detected that the rotating shaft 4 has reached the position where it needs to be restored, the recovery detection switch 6-2 sends a signal to the control system, and the control system controls the drive device 1 to stop and rotate so that the rotating shaft 4 returns until the rotating shaft 4 reaches the action detection switch 6-1 and is detected. The action detection switch 6-1 sends a signal to the control system and controls the drive device 1 to stop through the control system. It should be noted that the control system can independently control the start-up of the drive device 1 to control the movement of the finger 3. In addition, the detection switch 6 is installed on the first side panel, and the perforation on the first side panel for installing the detection switch 6 is a waist groove, so that the detection switch 6 can adapt to installation and debugging errors.

[0046] Based on the above embodiment, the rotating shaft 4 includes a fixed plate 4-1 and a shifting shaft 4-2 which are perpendicular to each other. The fixed plate 4-1 is fixedly connected to the output end of the driving device 1, and the shifting shaft 4-2 passes through the fixed plate 4-1 and is fixedly connected to the fixed plate 4-1.

[0047] For details, please refer to the attached Figure 7 The fixing plate 4-1 is an 8-shaped structure. The two through holes on the fixing plate 4-1 are used to insert the output end of the driving device 1 and the toggle shaft 4-2 respectively. The output end of the driving device 1 is fixedly connected to the fixing plate 4-1 and fastened by a locking screw to ensure a reliable connection. The toggle shaft 4-2 is inserted into the fixing plate 4-1 and penetrates the fixing plate 4-1 so that the fixing plate 4-1 is provided with a protruding structure in the direction toward the first side plate. It should be noted that the action detection switch 6-1 and the recovery detection switch 6-2 both detect the protruding structure to determine the position of the rotating shaft 4 and send relevant instructions to the control system, and the surface of the fixing plate 4-1 in the direction perpendicular to the protruding structure is set as a plane for contacting the buffer blocking member 5.

[0048] On the basis of the above-mentioned embodiment, the shifting shaft 4 - 2 is a columnar structure, and the diameter of the shifting shaft 4 - 2 is smaller than the diameter of the through hole on the shifting finger 3 .

[0049] Specifically, the diameter of the through hole provided on the finger 3 should be slightly larger than the diameter of the driving shaft 4 - 2 , so that the impact force and vibration force on the finger 3 will not be directly transmitted to the output shaft of the driving device 1 , thereby protecting the driving device 1 .

[0050] In some embodiments, the fixed shaft 11 is perpendicular to the second side plate and extends toward the first side plate. An oil-free bushing 8 is sleeved on the outer periphery of the fixed shaft 11 , and the finger 3 is sleeved on the oil-free bushing 8 .

[0051] For details, please refer to the attached Figure 6 The outer periphery of the fixed shaft 11 is sleeved with an oil-free bushing 8, which is also called a self-lubricating oil bearing. It has the characteristics of a metal bearing and an oil-free lubricated bearing. The bushing body is soaked with lubricating oil, presenting a sliding bearing that can be "used without oil supply" or "can reduce the number of oil supply times". The finger 3 is sleeved on the oil-free bushing 8 so that the finger 3 can rotate smoothly around the fixed shaft 11. The use of the oil-free bushing 8 can improve the control accuracy of the drive device 1 over the finger 3 to a certain extent.

[0052] Based on the above embodiment, a shaft end baffle 7 is fixed to the end of the fixed shaft 11 away from the second side plate. The shaft end baffle 7 is fixed to the fixed shaft 11 through a shaft end fixing assembly 10. The shaft end baffle 7 is used to prevent the finger 3 from falling off the oil-free bushing 8.

[0053] Specifically, the diameter of the shaft end baffle 7 is larger than the diameter of the through hole on the finger 3. The shaft end fixing component 10 is preferably a fixing screw, which fixes the shaft end baffle 7 to the fixed shaft 11, thereby preventing the finger 3 from falling off the oil-free bushing 8. Preferably, the shaft end baffle 7 is made of brass to play a lubricating role, thereby reducing the rotational resistance of the finger 3.

[0054] In some embodiments, the first side plate is fixedly connected to the third side plate, the first side plate is arranged parallel to the second side plate, and a gap is provided between the third side plate and the second side plate.

[0055] Specifically, the first side panel is arranged in parallel with the second side panel and is arranged at the edges of the two ends of the mounting seat 2. The first side panel and the third side panel can be the same in shape and size. The third side panel is connected to the first side panel, and the third side panel and the first side panel are arranged perpendicular to each other. A gap is provided between the third side panel and the second side panel to avoid affecting the rotation process of the finger 3.

[0056] In some embodiments, the driving device 1 is an actuator motor, and the driving device 1 is fixed to the first side plate via a fixing mechanism 9 , and a plurality of fixing mechanisms 9 are provided.

[0057] For details, please refer to the attached Figure 3 With attached Figure 6 The mounting seat 2 is provided with a through hole for the driving device 1, that is, the output end of the executing motor passes through. A plurality of smaller through holes are provided on the periphery of the through hole. After the output end of the executing motor passes through the through hole, the executing motor is fixed by a plurality of fixing mechanisms 9 on the other side of the first side plate. The fixing mechanism 9 is preferably a bolt so that the executing motor can be detachably connected to the first side plate. It should be noted that the distance between the rotating shaft 4 and the first side plate and the second side plate is adjusted according to the detection range of the detection switch 6 and the height of the fixing mechanism 9 on the first side plate.

[0058] On the basis of the above-mentioned embodiment, a plurality of weight-reducing holes 12 are provided on the finger 3 , and the weight-reducing holes 12 are used to reduce the weight of the finger 3 .

[0059] Specifically, without affecting the strength of the finger 3, a plurality of weight-reducing holes 12 are provided on the finger 3, so as to reduce the load of the drive device 1, thereby achieving energy saving and consumption reduction and reducing the total weight of the mechanism.

[0060] In addition to the above-mentioned finger shifting mechanism, the present invention also provides a telescopic fork including the finger shifting mechanism disclosed in the above-mentioned embodiment. For the structures of other parts of the telescopic fork, please refer to the prior art and will not be described in detail herein.

[0061] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0062] The above is a detailed introduction to a telescopic fork and a finger mechanism thereof provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A finger-shifting mechanism, characterized in that: include: A mounting seat (2), wherein the mounting seat (2) is provided with a first side plate, a second side plate and a third side plate; A driving device (1) is arranged on the first side plate, and an output end of the driving device (1) passes through the first side plate; A finger (3) rotatably arranged on a fixed shaft (11) on the second side plate, wherein a through hole is arranged on the finger (3); The rotating shaft (4) is an L-shaped member, the first end of the rotating shaft (4) is fixedly connected to the output end of the driving device (1), and the second end of the rotating shaft (4) is inserted into the through hole on the finger (3); A buffer blocking member (5) is provided on the mounting seat (2) and the third side plate, and the buffer blocking member (5) is used to perform position limiting control on the rotating shaft (4).

2. The finger mechanism according to claim 1, characterized in that: The first side panel is also provided with a detection switch (6), the detection switch (6) comprising an action detection switch (6-1) and a recovery detection switch (6-2), the action detection switch (6-1) and the recovery detection switch (6-2) being connected to a control system, and the control system being connected to the drive device (1).

3. The finger mechanism according to claim 2, characterized in that: The rotating shaft (4) comprises a fixing plate (4-1) and a toggle shaft (4-2) which are perpendicular to each other; the fixing plate (4-1) is fixedly connected to the output end of the driving device (1); and the toggle shaft (4-2) passes through the fixing plate (4-1) and is fixedly connected to the fixing plate (4-1).

4. The finger mechanism according to claim 3, characterized in that: The shifting shaft (4-2) is a columnar structure, and the diameter of the shifting shaft (4-2) is smaller than the diameter of the through hole on the shifting finger (3).

5. The finger mechanism according to claim 1, characterized in that: The fixed shaft (11) is perpendicular to the second side plate and extends in the direction of the first side plate. An oil-free bushing (8) is sleeved on the outer periphery of the fixed shaft (11), and the finger (3) is sleeved on the oil-free bushing (8).

6. The finger mechanism according to claim 5, characterized in that: An end of the fixed shaft (11) facing away from the second side plate is fixed with a shaft end baffle (7), the shaft end baffle (7) is fixed to the fixed shaft (11) via a shaft end fixing assembly (10), and the shaft end baffle (7) is used to prevent the finger (3) from falling off the oil-free bushing (8).

7. The finger mechanism according to claim 1, characterized in that: The first side plate is fixedly connected to the third side plate, the first side plate is arranged in parallel with the second side plate, and a gap is arranged between the third side plate and the second side plate.

8. The finger mechanism according to claim 1, characterized in that: The driving device (1) is an actuator motor. The driving device (1) is fixed to the first side plate via a fixing mechanism (9). A plurality of fixing mechanisms (9) are provided.

9. The finger mechanism according to any one of claims 1 to 8, characterized in that: A plurality of weight-reducing holes (12) are provided on the shift finger (3), and the weight-reducing holes (12) are used to reduce the weight of the shift finger (3).

10. A telescopic fork, comprising a finger mechanism, characterized in that: The finger shifting mechanism is the finger shifting mechanism as claimed in any one of claims 1 to 9.

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