Walking box device and walking trolley

Abstract

The utility model provides a walking box device and a walking trolley, and relates to the technical field of the PCB press industry, the same as a traditional walking box device, the walking box device comprises a wheel box, a supporting shaft and wheels, the wheels and the supporting shaft are both installed in the wheel box, the supporting shaft penetrates through the wheels, the supporting shaft penetrates through the wheels, and when the wheels rotate, the wheels are driven by the supporting shaft to rotate. Compared with a traditional walking box device, the walking box device is additionally provided with the abrasion warning device, the abrasion warning device is located below the wheel box and located on the two sides of the wheel at the same time, and when the abrasion loss of the wheel reaches a preset value, the abrasion warning device can give an alarm when the abrasion loss of the wheel reaches the preset value. The abrasion warning indicator generates friction noise with the wheel walking guide rail, wheel abrasion is monitored in real time, and then reference is provided for replacing a new wheel.

Description

TECHNICAL FIELD

[0001] The utility model relates to the industry technical field of PCB press, especially to a walking box device and a walking trolley. BACKGROUND

[0002] The walking trolley is an important production equipment in the PCB pressing production process, and the main function of the walking trolley is to transfer the PCB pressing materials between the hot press, the cold press and the material rack.

[0003] Since the PCB pressing materials are heavy, the movement and bearing mechanism is mainly located at the four wheels under the walking trolley frame. Since the walking trolley moves back and forth frequently, the movement mechanism of the walking trolley must be firm and reliable, stable in operation, easy to assemble and maintain, and high in standard and interchangeability of spare parts. When the wheels are seriously worn, the fault wheel position can be located through simple identification.

[0004] Therefore, how to identify the fault wheel has become a technical problem to be solved by the technical personnel in the field. SUMMARY

[0005] Therefore, the purpose of the utility model is to provide a walking box device to solve the technical problem that the wheels cannot be effectively identified when they are seriously worn.

[0006] The second purpose of the utility model is to provide a walking trolley containing the walking box device.

[0007] In order to achieve one of the above purposes, the utility model provides a walking box device, which comprises a wheel box, a supporting shaft and a wheel arranged in the wheel box, the wheel box has a hollow cavity with an open bottom, the wheel and the supporting shaft are arranged in the hollow cavity, the supporting shaft passes through the wheel, and the wheel rotates when

[0008] It also comprises a wear warning device arranged below the wheel box and on both sides of the wheel for real-time monitoring of the wear of the wheel.

[0009] According to an optional embodiment, the wear warning device is a metal sheet body.

[0010] According to an optional embodiment, the upper surface of the wear warning device is a plane, and the lower surface of the wear warning device is an arc surface.

[0011] According to an optional embodiment, the wear warning device is arranged along the width direction of the wheel.

[0012] According to an optional embodiment, the wear warning device is at a preset distance from the bottom end of the wheel.

[0013] According to an optional embodiment, the wheel box comprises a box body and a box cover, the box cover is detachably arranged on one side of the box body, and the wheel is arranged in the box body.

[0014] According to an optional embodiment, a mounting plug is arranged below the box body, the mounting plug comprises two mounting plugs arranged below two side plates of the box body respectively, and the wear warning device is arranged on the lower surface of the mounting plug.

[0015] According to an optional embodiment, the thickness of the mounting plug is greater than the thickness of the side plate of the box body.

[0016] According to an optional embodiment, an encoder mounting shaft for mounting a walking encoder is further included, the encoder mounting shaft is arranged on the end cover, and the walking encoder is electrically connected with the control module.

[0017] In order to achieve the second purpose, the utility model provides a walking trolley, including any above -mentioned walking box device.

[0018] The walking box device provided by the utility model has the following technical effects:

[0019] The walking box device is same as the traditional walking box device, and both comprise a wheel box, a support shaft and a wheel, the wheel and the support shaft are both mounted in the wheel box, the support shaft passes through the wheel, the support shaft passes through the wheel, when the wheel rotates, the support shaft rotates together with the wheel around the center axis of the support shaft, different from the traditional walking box device, the utility model adds a wear warning device, the wear warning device is located below the wheel box and simultaneously located on both sides of the wheel, when the wear amount of the wheel reaches a preset value, the wear warning device will generate friction noise with the wheel walking guide rail, the wear of the wheel is monitored in real time, and then reference for replacing a new wheel is provided.

[0020] The walking trolley provided by the utility model has the following technical effects:

[0021] The walking trolley comprises the walking box device, and the walking box device comprises the wear warning device, so that the purpose of reminding replacing the wheel in real time is achieved through the warning effect of the wear warning device. DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0023] Figure 1 is the front view of the walking box device of the utility model;

[0024] Figure 2 is Figure 1 is the sectional view of the walking box device along A-A direction in the middle;

[0025] Figure 3 is Figure 1 is the top view of the walking box device;

[0026] Figure 4 is Figure 1 is the exploded view of the walking box device.

[0027] Among them, Figures 1-4 :

[0028] 1, wheel; 2, box cover; 3, mounting plug; 4, inner support column; 5, support shaft; 6, tapered roller bearing; 7, bearing support seat; 8, end cover one; 9, shaft sleeve; 10, lubricating oil nozzle; 11, locking column; 12, inner threaded cylindrical pin; 13, locking screw; 14, end cover locking screw; 15, box body; 16, end cover two; 17, encoder mounting shaft; 18, metal wear warning device. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope protected by the utility model.

[0030] Based on the defects existing in the prior art, the specific drawings will be combined below Figures 1-4 The preferred embodiment of the walking box device of the utility model is described in detail.

[0031] Referring to Figures 1-4 , the walking box device comprises a wheel box, a support shaft 5 and a wheel 1, the wheel 1 box has a hollow cavity with an open bottom, the support shaft 5 and the wheel 1 are both placed in the hollow cavity, the support shaft 5 passes through the wheel 1, the support shaft 5 provides driving force through a driving mechanism, and the support shaft 5 further drives the wheel 1 to rotate around the central axis of the support shaft 5.

[0032] In detail, as shown in Figures 1-4 , the wheel 1 box of the embodiment comprises a box body 15 and a box cover 2, the box cover 2 is located on one side of the box body 15 and is detachably connected with the box body 15, and the wheel 1 is placed in the box body 15, preferably, the wheel 1 is located at the central position of the box body 15.

[0033] The box cover 2 and the box body 15 have mounting holes at positions opposite to the box cover 2, and end caps are arranged on the mounting holes, wherein the end caps include end cap one 8 and end cap two 16, and the end cap one 8 further has a lubricating oil nozzle 10.

[0034] The wheel 1 is located at the center of the box body 15, and the wheel 1 is provided with a shaft sleeve 9 at both ends, one end of the shaft sleeve 9 is in contact with the wheel 1, and the other end of the shaft sleeve 9 is in contact with the tapered roller bearing 6, and further comprising two bearing support seats 7, one of which is arranged on the box cover 2, and the other is arranged on the side plate of the box body 15 opposite to the box cover 2, the tapered roller bearing 6 is arranged in the bearing support seat 7, the support shaft 5 penetrates the wheel 1, the shaft sleeve 9, the tapered roller bearing 6 and the bearing support seat 7, the wheel 1 is connected with the support shaft 5 through double flat keys, the inner ring of the tapered roller bearing 6 rotates with the support shaft 5, and the tapered roller bearing 6 is arranged at both ends of the wheel 1 and connected with the box cover 2 and the box body 15 through bolts respectively.

[0035] Continuing to refer to Figures 1-4 It is shown that the box cover 2 and the box body 15 are processed with positioning step holes on the inner sides, and the inner support column 4 is arranged between the step holes on the inner sides of the box cover 2 and the box body 15, thereby playing a positioning and supporting role.

[0036] The locking column 11 penetrates the box cover 2 and is locked on the box body 15 through a loose washer, the inner threaded cylindrical pin 12 and the locking screw 13 are fastening parts of the box body 15, the inner threaded cylindrical pin 12 provides positioning and shearing support for the box cover 2, and the locking screw 13 firmly locks the box cover 2 on the box body 15, so that they become a complete whole.

[0037] In addition, in order to provide force support for the wheel 1 box, as shown in Figure 1 and Figure 4 The box body 15 is provided with mounting plugs 3 below, the mounting plugs 3 are block-shaped bodies with a certain thickness, and the thickness is greater than the thickness of the side plates of the box body 15, the mounting plugs 3 include two and are located below the two side plates (the side plates adjacent to the box cover 2) of the box body 15 respectively.

[0038] The mounting plugs 3 of the embodiment provide external interface expansion support for the wheel 1 box, that is, provide support for the force part of the wheel 1 box.

[0039] The embodiment further includes a wear warning device 18, which is arranged below the wheel 1 box and simultaneously located on both sides of the wheel 1, and is used for real-time monitoring of the wear of the wheel 1.

[0040] In detail, as shown in Figure 1 and Figure 4As shown, the wear warning device 18 of this embodiment is arranged along the width direction of the wheel 1. The wear warning device 18 is preferably a metal sheet. The upper surface of the wear warning device 18 is a plane, and the lower surface of the wear warning device 18 is an arc-shaped surface. The arc-shaped surface here protrudes downward, and the wear warning device 18 has a preset distance from the bottom end of the wheel 1.

[0041] The main function of the wear alarm 18 is to monitor the wear of the wheel 1. When the wear of the wheel 1 exceeds the preset value during use, the metal wear alarm 18 will produce friction with the track under the wheel 1, thereby forming a warning noise. When the warning noise occurs, the wheel 1 should be replaced in time.

[0042] And this embodiment also includes an encoder installation shaft 17, which passes through a circular hole in the center of the end cover. The encoder installation shaft 17 is used to install a travel encoder, and the travel encoder is electrically connected to the control module.

[0043] The rotation speed of wheel 1 box can be measured and fed back by an external travel encoder. When wheel 1 box counts according to the preset encoder and the number of points cannot reach the specified position, it indicates that wheel 1 is worn and needs to be inspected and repaired in time.

[0044] The wheel box 1 of the traveling box device of the present invention is designed in a modular manner, so that the integration degree of the wheel box 1 is greatly improved. By replacing wheels 1 of different diameters, it can adapt to the load-bearing requirements of different working conditions. The degree of commonality of parts is improved, which is convenient for mass production.

[0045] The traveling box device and the traveling trolley of this embodiment are described in detail below with reference to specific examples.

[0046] Example 1:

[0047] like Figures 1-4 As shown, the wheel 1 of this embodiment is located in the center of the wheel box 1, and shaft sleeves 9 are installed on both sides of the wheel 1. One end of the shaft sleeve 9 contacts the wheel 1, and the other end contacts the tapered roller bearing 6. The tapered roller bearing 6 is installed inside the bearing support seat 7. The support shaft 5 passes through the wheel 1, the shaft sleeve 9, the tapered roller bearing 6, and the bearing support seat 7. The wheel 1 and the support shaft 5 are connected by double parallel keys. When the wheel 1 rotates, the support shaft 5 also rotates together with the wheel 1 around the center line of the support shaft 5. The inner ring of the tapered roller bearing 6 rotates together with the support shaft 5. The tapered roller bearing 6 is installed at both ends of the wheel box 1 and is connected to the box cover 2 and the box body 15 respectively by bolts.

[0048] The box cover 2 and the box body 15 are processed with positioning step holes on the inner side, and the inner support column 4 is installed between the step holes on the inner side of the box cover 2 and the box body 15 to play a positioning and supporting role.

[0049] Locking column 11 through the wheel 1 box and by relaxing the washer and screw locking in the box 15, inner threaded cylindrical pin 12, locking screw 13 for box 15 lock fastener, inner threaded cylindrical pin 12 for box cover 2 provides positioning and shear support, locking screw 13 firmly locks the box cover 2 on the box 15 to make it a complete whole.

[0050] The installation plug 3 is located at the lower end of the box 15, and the main function is to provide an external interface expansion support for the wheel 1 box, and to provide a support for the stress member of the wheel 1 box, so its thickness is greater than the thickness of the side plate of the box 15.

[0051] The wear warning device 18 is installed below the installation plug 3 and is distributed on the left and right sides of the wheel 1 box. The main function is to monitor the wear of the wheel 1. When the wheel 1 is used and the wire exceeds the preset wear value, the wear warning device 18 will rub with the track below the wheel 1 to form a warning noise. When the warning noise appears, the wheel 1 should be replaced in time.

[0052] The encoder mounting shaft 17 is located on one side of the wheel 1 box. The encoder mounting shaft 17 passes through the center of the end cover and the round hole, and can be externally connected to the walking encoder. The rotation speed of the wheel 1 box can be measured and fed back through the external walking encoder. When the wheel 1 box cannot reach the specified positioning according to the preset encoder count, it indicates that the wheel 1 wire needs to be checked and repaired in time.

[0053] The specific working steps are:

[0054] When the wheel 1 box is working normally, the wheel 1 rotates together with the inner ring of the tapered roller bearing 6 in the wheel 1 box. The rotation speed of the wheel 1 is transmitted to the walking encoder through the encoder mounting shaft 17. The walking encoder can record the running state and speed of the wheel 1 in real time, and transmit the count to the control module.

[0055] When installing, the wear warning device 18 is preset to a certain value, such as 2-3mm, from the wheel 1 walking track. When the wheel 1 is worn, the wheel 1 box is disconnected from the positioning station detection signal. At this time, the wear of the wheel 1 box should be checked to determine the health status of the wheel 1. When the wheel 1 is seriously worn, the wear warning device 18 will rub with the wheel 1 walking guide rail to produce friction noise. At this time, the wheel 1 should be repaired and replaced.

[0056] Example two:

[0057] The embodiment provides a walking trolley comprising the walking box device described in example one.

[0058] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, integral connections, mechanical connections, electrical connections, direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model depending on the specific circumstances.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A walking case apparatus comprising a wheel case, a support shaft and a wheel provided in the wheel case, characterized by, The wheel box has a hollow cavity with a bottom opening, the wheel and the support shaft are both placed in the hollow cavity, and the support shaft penetrates the wheel; Further comprising a wear warning device, which is arranged below the wheel box and on both sides of the wheel, and is used for monitoring the wear of the wheel in real time.

2. The travel case apparatus of claim 1, wherein, The wear warning device is a sheet-shaped metal body.

3. The walk box device of claim 2, wherein, The upper surface of the wear warning device is a plane, and the lower surface of the wear warning device is an arc surface.

4. The traveling box device according to any one of claims 1 to 3, characterized in that: The wear warning device is arranged along the width direction of the wheel.

5. The travel case apparatus of any one of claims 1-3, wherein, The wear warning device is at a preset distance from the bottom end of the wheel.

6. The walk box device of claim 1, wherein, The wheel box comprises a box body and a box cover, the box cover is detachably arranged on one side of the box body, and the wheel is arranged in the box body.

7. The walk box device of claim 6, wherein, Two installation plugs are arranged below the box body, and the wear warning device is arranged on the lower surface of the installation plugs.

8. The walk box device of claim 7, wherein, The thickness of the installation plug is greater than the thickness of the side plate of the box body.

9. The walk box device of claim 6, wherein, Further comprising an encoder installation shaft for installing a walking encoder, the encoder installation shaft is arranged on the end cover, and the walking encoder is electrically connected with the control module.

10. A walking truck characterized by The walking box device comprises the wheel box device according to any one of claims 1-9.

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