Positioning device

Abstract

The utility model discloses a positioning device. The positioning device comprises a positioning pin shaft, a transmission unit, a conversion unit and a driving unit, wherein the positioning pin shaft is arranged to be matched with a pin hole of the mobile equipment; one end of the transmission unit is connected with the positioning pin shaft, and the other end of the transmission unit is connected with one end of the conversion unit; the driving unit is connected with the other end of the conversion unit; the driving unit is arranged to drive the transmission unit to transmit torque to the positioning pin shaft by driving the conversion unit, and then the positioning pin shaft is driven to move. The positioning device provided by the utility model can realize positioning of various mobile devices, and is wide in application scene. Meanwhile, the structure is simple, and the impact resistance is high.

Description

Technical Field

[0001] The utility model relates to a positioning device. Background Art

[0002] At present, various mobile equipment, such as mobile platforms for transporting or loading and unloading goods, need to be positioned by pins during use. The positioning devices mainly include positioning pins, clamping positioning devices, slot positioning mechanisms, screw positioning, retaining ring positioning, axial positioning, etc. These structures mostly use manual pins, which have insufficient transmission efficiency and can only solve the positioning and fixing needs of some mechanical mechanisms. However, in specific structures or situations, such as unmanned, high-temperature, high-risk, flammable and explosive situations, special positioning structures and transmission principles need to be designed to solve the needs in specific situations. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a positioning device, which can realize the positioning of various mobile devices. The present invention adopts the following technical solutions to achieve the above purpose.

[0004] The utility model provides a positioning device, comprising a positioning pin, a transmission unit, a conversion unit and a driving unit; wherein:

[0005] The positioning pin is configured to cooperate with a pin hole of a mobile device;

[0006] One end of the transmission unit is connected to the positioning pin shaft, and the other end is connected to one end of the conversion unit;

[0007] The driving unit is connected to the other end of the conversion unit; the driving unit is configured to drive the conversion unit to drive the transmission unit to transfer the torque to the positioning pin shaft, thereby driving the positioning pin shaft to move.

[0008] The positioning device of the utility model is mainly used to position mobile equipment such as a mobile platform for transshipment or loading and unloading of goods. In the utility model, the positioning device mainly includes a positioning pin shaft, a transmission unit, a conversion unit and a drive unit. The positioning pin shaft cooperates with the pin hole of the mobile equipment to achieve positioning in three directions. One end of the transmission unit is connected to the positioning pin shaft, and the other end is connected to the conversion unit. The other end of the conversion unit is connected to the drive unit. The conversion unit converts the input power of the drive unit, changes the torque, and converts the power and torque into appropriate values ​​for the transmission unit to drive the positioning pin shaft to rotate. In this way, electric drive positioning can be achieved, which is more convenient than the existing manual operation and has stronger applicability.

[0009] According to the positioning device of the utility model, preferably, the positioning pin shaft comprises a pin guide cone, a moving part and an inner keyway; the pin guide cone is a conical structure, which is configured to cooperate with the pin hole of the mobile device; the moving part is arranged around the end of the pin guide cone away from its conical end, and the moving part is movably connected to the transmission unit; the inner keyway is arranged inside the pin guide cone to provide torque for the positioning pin shaft. Such a positioning pin shaft can not only achieve positioning, but also has good impact resistance.

[0010] According to the positioning device of the utility model, preferably, the movable part is configured as a threaded structure, which is rotatably connected to the transmission unit; the pin guide cone, the movable part and the inner keyway are an integrally formed structure.

[0011] In the utility model, the positioning pin shaft comprises a pin guide cone, a moving part and an inner keyway. A positioning pin guide cone is provided at the end of the positioning pin shaft, and the conical guide structure is used in conjunction with the pin hole. A moving part is provided on the outside of the positioning pin shaft, and the moving part is set as a threaded structure, which is used in conjunction with the transmission unit to realize the rotational movement of the positioning pin shaft. An inner keyway is provided inside the positioning pin shaft, which is used in conjunction with the transmission shaft to provide torque for the positioning pin shaft.

[0012] According to the positioning device of the utility model, preferably, the transmission unit includes a housing, a sleeve, a transmission shaft and a positioning bearing; wherein,

[0013] The shell is configured as a hollow cylindrical structure, one end of which is connected to the mobile device, and the other end is connected to the conversion unit; a hollow thread structure is provided inside the shell, and the hollow thread structure matches the moving part;

[0014] The sleeve and the locating bearing are both sleeved on the transmission shaft; the sleeve is configured as an annular structure and is located between two sets of locating bearings, and is used to limit the locating bearings;

[0015] One end of the transmission shaft is connected to the inner keyway, and the other end is connected to the conversion unit.

[0016] According to the positioning device of the utility model, preferably, the shell includes a shell body, a first flange, a second flange, a connecting part and a shell shoulder; the shell body is configured as a hollow cylindrical structure, one end of which is connected to the first flange, and the other end is connected to the second flange; the first flange is fixedly connected to the mobile device; the second flange is connected to the conversion unit; the connecting part is configured as a hollow threaded structure, which is arranged on the inner wall of the shell body and close to one end of the first flange, and the connecting part cooperates with the moving part; the shell shoulder abuts against the outer ring of the positioning bearing.

[0017] According to the positioning device of the utility model, preferably, it also includes a weight-reducing hole; the weight-reducing hole is arranged on the shell body, so that it can reduce weight, add grease and serve as an observation port for checking the working status of the device.

[0018] According to the positioning device of the utility model, preferably, the transmission shaft includes a spline, a transmission shaft shoulder and a flat key; the spline is arranged at one end of the transmission shaft and cooperates with the inner keyway; the flat key is arranged at the other end of the transmission shaft for cooperating with the conversion unit to transmit torque and motion; the transmission shaft shoulder abuts against the inner ring of the positioning bearing.

[0019] In the present invention, the main function of the locating bearing is to fix another bearing or bearing assembly in the correct position to avoid slight deviation and displacement during processing, transportation, installation or use. The locating bearing requires two shoulders. The shoulder of the housing supports one end of the locating bearing, and the shoulder of the transmission shaft supports the other end of the locating bearing, so that the torque can be transmitted to the transmission shaft. The two sets of locating bearings are used in conjunction with the housing shoulder, the transmission shaft shoulder, the sleeve and the connecting piece to achieve the limited positioning and tightening of the locating bearing. According to a specific embodiment of the present invention, the locating bearing is set as an angular contact ball bearing.

[0020] According to the positioning device of the present invention, preferably, the conversion unit is configured as a reducer, and a first axial hole and a second axial hole are respectively provided at both ends thereof, the first axial hole is connected to the flat key, and the second axial hole is connected to the driving unit.

[0021] According to the positioning device of the present invention, preferably, the conversion unit is configured as a spiral bevel gear structure reducer or a straight-through planetary reducer.

[0022] In the present invention, the conversion unit can be configured as a reducer, which is mainly used to convert the input power of the driving unit, change the torque, and convert the power and torque into appropriate values ​​for the transmission unit to drive the positioning pin shaft to rotate.

[0023] In some embodiments, the conversion unit is a straight-through planetary reducer. In other embodiments, the conversion unit is configured as a spiral bevel gear structure reducer, which can realize 90-degree bending transmission and is applicable to more scenarios.

[0024] According to the positioning device of the utility model, preferably, the driving unit includes a driving body, a power supply interface, a signal interface, a transmission output shaft and a manual operation shaft; the power supply interface and the signal interface are both arranged at the top of the body, the transmission output shaft is arranged at one end of the driving body, which is connected to the second axial hole of the conversion unit, and the manual operation shaft is arranged at the other end of the driving body.

[0025] In the utility model, the drive unit includes a drive body, a power supply interface, a signal interface, a transmission output shaft and a manual operation shaft. The drive unit can be electrically controlled. When the controller issues a command, the drive unit rotates, drives the conversion unit to work, and the conversion unit drives the transmission unit to rotate. The drive unit can also be manually controlled. When there is no power input, the manual operation shaft can be operated by a handheld tool to perform operations.

[0026] Compared with the prior art, the positioning device of the utility model has the following beneficial effects:

[0027] (1) It can realize the positioning of various mobile devices and has a wide range of application scenarios.

[0028] (2) Compared with the existing manual pinning, the positioning device of the utility model has high transmission efficiency.

[0029] (3) It can be driven by electric control or operated manually, and can be used for positioning in specific situations, such as unmanned, high temperature, and high-risk situations.

[0030] (4) Simple structure and strong impact resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the positioning device of the utility model.

[0032] Figure 2 It is a front view schematic diagram of the positioning device of the utility model.

[0033] Figure 3 It is a structural schematic diagram of the positioning pin shaft of the utility model.

[0034] Figure 4 It is a structural schematic diagram of the shell of the utility model.

[0035] Figure 5 It is a cross-sectional view of the shell of the utility model.

[0036] Figure 6 It is a structural schematic diagram of the transmission shaft of the utility model.

[0037] Figure 7 It is a structural schematic diagram of the drive unit of the utility model.

[0038] Figure 8 Schematic diagram of the structure of the conversion unit in Example 1.

[0039] Fig. 9 Schematic diagram of the structure of the conversion unit in Example 2.

[0040] Fig.10 This is a schematic diagram of the positioning device after the conversion unit in Example 2 is installed.

[0041] The following are the descriptions of the reference numerals:

[0042] 1- positioning pin shaft, 11- pin guide cone, 12- moving part, 13- inner keyway;

[0043] 2-transmission unit, 21-housing, 211-housing body, 212-first flange, 213-second flange, 214-connecting part, 215-housing shoulder, 216-weight reduction hole, 22-sleeve, 23-transmission shaft, 231-spline, 232-transmission shaft shoulder, 233-flat key, 24-positioning bearing;

[0044] 3-conversion unit, 31-first shaft hole, 32-second shaft hole;

[0045] 4-drive unit, 41-drive body, 42-power supply interface, 43-signal interface, 44-transmission output shaft, 45-manual output shaft. DETAILED DESCRIPTION

[0046] The present invention will be further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0047] Example 1

[0048] Figure 1 It is a structural schematic diagram of the positioning device of the utility model. Figure 2 It is a front view schematic diagram of the positioning device of the utility model. Figure 3 It is a structural schematic diagram of the positioning pin shaft of the utility model. Figure 4 It is a structural schematic diagram of the shell of the utility model. Figure 5 It is a cross-sectional view of the shell of the utility model. Figure 6 It is a structural schematic diagram of the transmission shaft of the utility model. Figure 7 It is a structural schematic diagram of the drive unit of the utility model. Figure 8 Schematic diagram of the structure of the conversion unit in this embodiment.

[0049] like Figures 1 to 8 As shown, the positioning device of the utility model is used to position a mobile device such as a mobile platform for transporting or loading and unloading goods.

[0050] like Figure 1 As shown, a positioning device includes a positioning pin 1, a transmission unit 2, a conversion unit 3 and a drive unit 4; wherein the positioning pin 1 is configured to cooperate with a pin hole of a mobile device; one end of the transmission unit 2 is connected to the positioning pin 1, and the other end is connected to one end of the conversion unit 3; the drive unit 4 is connected to the other end of the conversion unit 3; the drive unit 4 drives the conversion unit 3, and the conversion unit 3 drives the transmission unit 2 to transfer the torque to the positioning pin 1, thereby driving the positioning pin 1 to move.

[0051] like Figure 1 and Figure 3 As shown, the positioning pin shaft 1 includes a pin guide cone 11, a moving portion 12 and an inner keyway 13. The pin guide cone 11 is configured as a variable-section conical structure for use with a pin hole of a mobile device. The moving portion 12 is disposed around the pin guide cone 11 and is away from the conical end of the pin guide cone 11. The moving portion 12 is used to cooperate with the housing 21 to achieve the rotational movement of the positioning pin shaft 1. The inner keyway 13 is disposed inside the pin guide cone 11 and is close to the moving portion 12. The inner keyway 13 is used to cooperate with the transmission unit 2 and provide torque for the positioning pin shaft 1. In this embodiment, the moving portion 12 is configured as a threaded structure, and the pin guide cone 11, the moving portion 12 and the inner keyway 13 are integrally formed.

[0052] like Figure 2 As shown, the transmission unit 2 includes a housing 21, a sleeve 22, a transmission shaft 23 and a positioning bearing 24. Specifically,

[0053] like Figure 4 and 5 As shown, the housing 21 includes a housing body 211, a first flange 212, a second flange 213, a connecting portion 214, a housing shoulder 215 and a weight-reducing hole 216. The housing body 211 is configured as a hollow cylindrical structure, one end of which is connected to the first flange 212 and the other end is connected to the second flange 213. The first flange 212 is used for fixed connection with the mobile device, and the second flange 213 is used for connecting the conversion unit 3. The connecting portion 214 is configured as a hollow threaded structure, which is arranged at one end of the inner wall of the housing body 211 close to the first flange 212, and is used to realize the rotational movement of the locating pin shaft 1 by cooperating with the moving portion 12. The housing shoulder 215 is used to install the locating bearing 24. The weight-reducing hole 216 is arranged on the housing body 211, which can reduce weight, and is used as an observation port for adding grease and checking the working status of the device.

[0054] like Figure 2 As shown, the sleeve 22 is configured as an annular structure, which is sleeved on the transmission shaft 23 and is arranged between two sets of positioning bearings 24 for limiting.

[0055] like Figure 6 As shown, the transmission shaft 23 includes a spline 231, a transmission shaft shoulder 232 and a flat key 233. The spline 231 is arranged at one end of the transmission shaft 23, and is used in conjunction with the inner keyway 13 to play a guiding role, and transmits the torque to the positioning pin 1 through the moving spline 231. The flat key 233 is arranged at the other end of the transmission shaft 23, and is used to cooperate with the conversion unit 3 to transmit torque and motion. The transmission shaft shoulder 232 is also used to position and install the positioning bearing 24.

[0056] like Figure 2As shown, the locating bearing 24 is sleeved on the transmission shaft 23, which requires two shoulders for limiting. The inner ring of the locating bearing 24 abuts against the transmission shaft shoulder 232, and the outer ring of the locating bearing 24 abuts against the housing shoulder 215, thereby tightening the locating bearing 24 and transmitting the torque to the transmission shaft 23. In this way, the two groups of locating bearings 24 are used in conjunction with the housing shoulder 215, the transmission shaft shoulder 232, the sleeve 22 and the connector to achieve the limited positioning and tightening of the locating bearings 24. In this embodiment, the locating bearing 24 is an angular contact ball bearing.

[0057] like Figure 8 As shown, the conversion unit 3 is configured as a reducer, and a first shaft hole 31 and a second shaft hole 32 are respectively provided at both ends thereof, the first shaft hole 31 is connected to the flat key 233, and the second shaft hole 32 is connected to the drive unit 4. The conversion unit 3 converts the input power of the drive unit 4, changes the torque, and converts the power and torque into a suitable value that enables the transmission unit 2 to drive the positioning pin shaft 1 to rotate. In this embodiment, the conversion unit 3 is configured as a spiral bevel gear structure reducer, which can realize 90-degree bending transmission and is suitable for more scenarios.

[0058] like Figure 7 As shown, the drive unit 4 includes a drive body 41, a power supply interface 42, a signal interface 43, a transmission output shaft 44 and a manual operation shaft 45. The power supply interface 42 and the signal interface 43 are both arranged at the top of the drive body 41, the transmission output shaft 44 is arranged at one end of the drive body 41, and is connected to the second shaft hole 32 of the conversion unit 3, and the manual operation shaft 45 is arranged at the other end of the drive body 41. When there is no power input, the manual operation shaft 45 can be operated by a handheld tool to perform operations.

[0059] The following is a detailed description of the method of using the positioning device of the utility model:

[0060] After the mobile device stops, the controller issues a command to drive the drive unit 4 to rotate, drive the conversion unit 3 to work, the conversion unit 3 drives the transmission unit 2 to rotate, the transmission unit 2 transmits the torque to the positioning pin 1 by moving the spline 231, the positioning pin 1 rotates with the housing 21 through the spiral structure to achieve axial movement, the positioning pin 1 is pushed out, and is used in conjunction with the pin hole corresponding to the mobile device to achieve the positioning and fixing function. After the operation is completed, the drive unit 4 is started to rotate in the opposite direction through the command from the controller, driving the conversion unit 3 and the transmission unit 2 to rotate in the opposite direction, and the positioning pin 1 is retracted to achieve the unlocking function.

[0061] Example 2

[0062] Fig. 9 Schematic diagram of the structure of the conversion unit in this embodiment. Fig.10It is a schematic diagram of the positioning device after the conversion unit is installed in this embodiment.

[0063] like Fig. 9 and 10 As shown, the difference between this embodiment and embodiment 1 is that the spiral bevel gear structure reducer is replaced by a straight-through planetary reducer, and the rest is the same as embodiment 1.

[0064] The present invention is not limited to the above-mentioned embodiments. Without departing from the essential content of the present invention, any deformation, improvement, and substitution that can be thought of by those skilled in the art shall fall within the scope of the present invention.

Claims

1. A positioning device, characterized in that: It includes a positioning pin shaft, a transmission unit, a conversion unit and a drive unit; wherein, The positioning pin is configured to cooperate with a pin hole of a mobile device; One end of the transmission unit is connected to the positioning pin shaft, and the other end is connected to one end of the conversion unit; The driving unit is connected to the other end of the conversion unit; the driving unit is configured to drive the conversion unit to drive the transmission unit to transfer the torque to the positioning pin shaft, thereby driving the positioning pin shaft to move.

2. The positioning device according to claim 1, characterized in that: The positioning pin shaft includes a pin guide cone, a moving part and an inner keyway; the pin guide cone is a conical structure, which is configured to be used in conjunction with a pin hole of a mobile device; the moving part is arranged around one end of the pin guide cone away from its conical end, and the moving part is movably connected to the transmission unit; the inner keyway is arranged inside the pin guide cone to provide torque for the positioning pin shaft.

3. The positioning device according to claim 2, characterized in that: The movable part is configured as a threaded structure, which is rotatably connected to the transmission unit; the pin guide cone, the movable part and the inner keyway are an integrally formed structure.

4. The positioning device according to claim 3, characterized in that: The transmission unit includes a housing, a sleeve, a transmission shaft and a positioning bearing; wherein, The shell is configured as a hollow cylindrical structure, one end of which is connected to the mobile device, and the other end is connected to the conversion unit; a hollow thread structure is provided inside the shell, and the hollow thread structure matches the moving part; The sleeve and the locating bearing are both sleeved on the transmission shaft; the sleeve is configured as an annular structure and is located between two sets of locating bearings, and is used to limit the locating bearings; One end of the transmission shaft is connected to the inner keyway, and the other end is connected to the conversion unit.

5. The positioning device according to claim 4, characterized in that: The shell includes a shell body, a first flange, a second flange, a connecting part and a shell shoulder; the shell body is configured as a hollow cylindrical structure, one end of which is connected to the first flange and the other end is connected to the second flange; the first flange is fixedly connected to the mobile device; the second flange is connected to the conversion unit; the connecting part is configured as a hollow threaded structure, which is arranged on the inner wall of the shell body and close to one end of the first flange, and the connecting part cooperates with the moving part; the shell shoulder abuts against the outer ring of the locating bearing.

6. The positioning device according to claim 5, characterized in that: It also includes a weight-reducing hole; the weight-reducing hole is arranged on the shell body.

7. The positioning device according to claim 5, characterized in that: The transmission shaft includes a spline, a transmission shaft shoulder and a flat key; the spline is arranged at one end of the transmission shaft and cooperates with the inner keyway; the flat key is arranged at the other end of the transmission shaft for cooperating with the conversion unit to transmit torque and motion; the transmission shaft shoulder abuts against the inner ring of the locating bearing.

8. The positioning device according to claim 7, characterized in that: The conversion unit is configured as a reducer, and a first shaft hole and a second shaft hole are respectively disposed at both ends of the conversion unit. The first shaft hole is connected to the flat key, and the second shaft hole is connected to the driving unit.

9. The positioning device according to claim 8, characterized in that: The conversion unit is configured as a spiral bevel gear structure reducer or a straight-through planetary reducer.

10. The positioning device according to any one of claims 1 to 9, characterized in that: The driving unit includes a driving body, a power supply interface, a signal interface, a transmission output shaft and a manual operation shaft; the power supply interface and the signal interface are both arranged at the top of the body, the transmission output shaft is arranged at one end of the driving body, which is connected to the second axial hole of the conversion unit, and the manual operation shaft is arranged at the other end of the driving body.

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