CN212127420U - Mileage measuring device and unmanned forklift - Google Patents
Mileage measuring device and unmanned forklift Download PDFInfo
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- CN212127420U CN212127420U CN201922443633.0U CN201922443633U CN212127420U CN 212127420 U CN212127420 U CN 212127420U CN 201922443633 U CN201922443633 U CN 201922443633U CN 212127420 U CN212127420 U CN 212127420U
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Abstract
The utility model relates to a mileage measuring device and unmanned fork truck, a mileage measuring device, include: a measuring wheel; and the encoder comprises a fixed part and a movable part which are connected in a rotating manner, the fixed part is embedded in the measuring wheel, the movable part is partially exposed out of the measuring wheel, the movable part partially exposed out of the measuring wheel is fixedly connected with the measuring wheel, and the measuring wheel rotates to drive the movable part to rotate so as to detect the rotating angle of the measuring wheel. An unmanned forklift comprising: a vehicle body; the driving mechanism is used for driving the vehicle body to move; the pallet fork is connected to the vehicle body and used for supporting cargos; the wheels are mounted at the bottom of the vehicle body; the mileage measuring device is arranged at the bottom of the vehicle body, the measuring wheels and the wheels are arranged side by side at intervals, and the measuring wheels and the wheels are arranged coaxially. According to the mileage measuring device and the unmanned forklift, the encoder is embedded in the measuring wheel, part of the encoder is exposed out of the measuring wheel, and the rotation angle of the measuring wheel can be detected, so that the advancing mileage of the measuring wheel is obtained, and the occupied space of the device is reduced.
Description
Technical Field
The utility model relates to an unmanned fork truck technical field especially relates to a mileage measuring device and unmanned fork truck.
Background
Traditional unmanned fork truck mileage measuring device, encoder expose externally, get into the rainwater dust easily and damage to influence the measurement accuracy of encoder, influence mileage measurement result.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a mileage measuring device and an unmanned forklift in order to solve the problem that an encoder is easily damaged.
A mileage measuring device comprising:
a measuring wheel; and
the encoder comprises a fixed part and a movable part which are connected in a rotating mode, the fixed part is embedded in the measuring wheel, the movable part is partially exposed out of the measuring wheel, the movable part partially exposed out of the measuring wheel is fixedly connected with the measuring wheel, and the measuring wheel can drive the movable part to rotate so as to detect the rotating angle of the measuring wheel.
Foretell mileage measuring device, encoder embedded in the measuring wheel and part expose in the measuring wheel, can detect measuring wheel turned angle to acquire measuring wheel mileage of marcing, can effectively protect the encoder, reduce device occupation space simultaneously.
In one embodiment, a cavity is arranged in the measuring wheel, the fixed part is in rolling connection with the inner wall of the cavity, and the movable part is partially positioned outside the cavity and connected with the measuring wheel through a connecting piece.
In one embodiment, the connecting piece comprises a connecting plate and a positioning shaft, the connecting plate is arranged at the opening of the containing cavity in a covering manner and is connected with the measuring wheel, and the connecting plate and the movable part are fastened through the positioning shaft.
In one embodiment, the measuring wheel includes a wheel body and a receiving portion, the receiving portion is disposed at one side of the wheel body, the fixing portion is embedded in the receiving portion, and the movable portion is exposed from the receiving portion and connected to the wheel body.
An unmanned forklift comprising:
a vehicle body;
the driving mechanism is used for driving the vehicle body to move;
the pallet fork is connected to the vehicle body and used for supporting cargos;
the wheels are mounted at the bottom of the vehicle body; and
the mileage measuring device is arranged at the bottom of the vehicle body, the measuring wheel and the wheel are arranged side by side at intervals, and the measuring wheel and the wheel are coaxially arranged.
Foretell unmanned fork truck is equipped with mileage measuring device, and the wheel rotates and to drive the measuring wheel synchronous rotation to detect measuring wheel turned angle through the encoder, thereby calculate unmanned fork truck and advance the mileage, easy and simple to handle, measure accurate, structural design is reasonable.
In one embodiment, the mileage measuring device further comprises a sleeve, the sleeve is sleeved on the encoder and is arranged in the measuring wheel in a rolling mode, and the sleeve is connected with the vehicle body.
In one embodiment, the mileage measuring device further includes a fixing plate fixed to the vehicle body and a cantilever connected to the sleeve and the fixing plate, so that the measuring wheel and the wheel are arranged side by side at an interval.
In one embodiment, the cantilever comprises a first support arm, a second support arm and a third support arm, the third support arm is connected with the first support arm and the second support arm at an included angle, so that the first support arm and the second support arm are parallel to each other and located on different planes, the first support arm is connected with the vehicle body, and the second support arm is connected with the sleeve.
In one embodiment, the measuring device further comprises a holding component, wherein the holding component is clamped on the cantilever and connected with the fixed plate and used for providing holding force to enable the measuring wheel to be close to the ground.
In one embodiment, the abutting assembly includes a support and an elastic member, the elastic member is sleeved on the support, a positioning plate is arranged on the cantilever, a through hole is arranged on the positioning plate, the support and the elastic member are inserted in the through hole, the elastic member abuts between the support and the positioning plate, and the support is connected with the fixing plate.
Drawings
FIG. 1 is an isometric view of an unmanned forklift of an embodiment;
FIG. 2 is a perspective view of the combination of the mileage measuring device of the unmanned forklift shown in FIG. 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a cross-sectional view taken along plane A-A of FIG. 3;
fig. 5 is an exploded view of the mileage measuring apparatus shown in fig. 2.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 3 and 4, the mileage measuring device 100 of an embodiment includes a measuring wheel 110 and an encoder 120, wherein the encoder 120 is embedded in the measuring wheel 110 and partially exposed out of the measuring wheel 110, and the encoder 120 is used for detecting a rotation angle of the measuring wheel 110, so as to obtain a mileage of the measuring wheel 110.
Specifically, referring to fig. 4, the encoder 120 includes a fixed portion 121 and a movable portion 122 that are rotatably connected, the fixed portion 121 is embedded in the measuring wheel 110, the movable portion 122 is partially exposed out of the measuring wheel 110, and the movable portion 122 partially exposed out of the measuring wheel 110 is fixedly connected to the measuring wheel 110, the measuring wheel 110 rotates to drive the movable portion 122 to rotate, the fixed portion 121 remains stationary, the rotating angle of the measuring wheel 110 is obtained by rotating the movable portion 122, which is convenient and fast, the encoder 120 is embedded in the measuring wheel 110 to reduce the occupied space of the device, and meanwhile, the encoder 120 is effectively protected, so that the use is prevented from being affected by external rainwater and dust damaging the encoder 120.
Furthermore, a cavity 111 is arranged in the measuring wheel 110, the fixed portion 121 is located in the cavity 111, a part of the movable portion 122 is exposed out of the cavity 111, and the movable portion 122, a part of which is exposed out of the cavity 111, is fixedly connected with the measuring wheel 110 through a connecting member 123.
In some embodiments, the connecting member 123 includes a connecting plate 124 and a positioning shaft 125, the connecting plate 124 is covered on the opening of the cavity 111 and connected to the measuring wheel 110 through a fastener such as a screw or a bolt, and the positioning shaft 125 penetrates through the middle portion of the connecting plate 124 and the movable portion 122, so that the movable portion 122 is fixedly connected to the measuring wheel 110. In other embodiments, the connecting member 123 may not be provided, a clamping hole is formed in the measuring wheel 110, the movable portion 122 is directly clamped in the clamping hole, and the movable portion 122 and the measuring wheel 110 can also be fixedly connected.
Since the movable portion 122 of the encoder 120 rotates while the fixed portion 121 remains stationary, the rotation of the movable portion 122 cannot interfere with the fixed portion 121, and therefore, the fixed portion 121 needs to be in rolling connection with the inner wall of the cavity 111 to prevent the fixed portion 121 from being driven to rotate due to hard friction when the movable portion 122 rotates.
In some embodiments, referring to fig. 4, the mileage measuring device 100 further includes a bearing 130, the bearing 130 is sleeved outside the fixing portion 121 and located in the cavity 111, and the bearing 130 is disposed between the inner wall of the cavity 111 and the fixing portion 121 to prevent hard friction between the fixing portion 121 and the inner wall of the cavity 111. In other embodiments, a ball may be additionally disposed on the inner side of the bearing 130 close to the encoder 120 to reduce friction, and to more effectively prevent the fixed portion 121 from hard friction with the inner wall of the cavity 111.
Furthermore, referring to fig. 2, the measuring wheel 110 includes a wheel body 112 and a receiving portion 113, the receiving portion 113 is disposed on one side of the wheel body 112, and a radial dimension of the receiving portion 113 is smaller than a radial dimension of the wheel body 112 and larger than a radial dimension of the movable portion 122 of the encoder 120, so that the movable portion 122 can be received in the receiving portion 113 and the volume of the measuring wheel 110 is reduced.
Specifically, referring to fig. 4, a first cavity (not shown) is disposed in the wheel body 112, a second cavity (not shown) is disposed in the accommodating portion 113, the first cavity and the second cavity are communicated with each other to form the accommodating portion 111, the fixing portion 121 is disposed in the accommodating portion 111, the movable portion 122 is partially exposed outside the accommodating portion 111 and is located on a side of the fixing portion 121 away from the accommodating portion 113, and the movable portion 122 is connected to the wheel body 112 through a connecting member 123.
In some embodiments, the receptacle 113 is cylindrical. In other embodiments, the receptacles 113 may also be prismatic or other irregular shapes.
In some embodiments, the wheel body 112 and the receiving portion 113 are integrally formed, and have good integrity and high structural strength. In other embodiments, the accommodating portion 113 may be detachably connected to the wheel body 112, so as to facilitate replacement of components in the accommodating portion 113, and the operation is simple and efficient, for example, the accommodating portion 113 may be connected to the wheel body 112 by a screw or a buckle, and the accommodating portion 113 may be directly detached for replacement after the encoder 120 is damaged or failed.
Furthermore, the accommodating portion 113 may also be a retractable structure, so that the width of the accommodating portion 113 can be adjusted, which is convenient for accommodating encoders 120 with different sizes, and the application range is wide.
In the mileage measuring device 100, the encoder 120 is embedded in the measuring wheel 110 and partially exposed out of the measuring wheel 110, and can detect the rotation angle of the measuring wheel 110, so as to obtain the traveling mileage of the measuring wheel 110, and the embedded arrangement of the encoder 120 can reduce the occupied space of the device and effectively protect the encoder 120.
Referring to fig. 1, an unmanned forklift according to an embodiment includes a mileage measuring device 100, a body 200, a driving mechanism (not shown), wheels 300, and forks 400.
Referring to fig. 1, the driving mechanism is used for driving the body 200 to move, and the fork 400 is connected to the body 200 for supporting the cargo. In particular, the drive mechanism is a motor.
Referring to fig. 1, a wheel 300 is mounted at the bottom of a vehicle body 200, a mileage measuring device 100 is mounted at the bottom of the vehicle body 200, a measuring wheel 110 and the wheel 300 are arranged side by side at an interval, and the measuring wheel 110 and the wheel 300 are coaxially arranged, so that the rotation of the wheel 300 can drive the measuring wheel 110 to rotate synchronously.
Specifically, referring to fig. 3 and 4, the mileage measuring device 100 further includes a sleeve 140, the sleeve 140 is sleeved on the movable portion 122 of the encoder 120, an outer wall of the sleeve 140 is connected with an inner wall of the cavity 111 through a bearing 130 in a rolling manner, and the sleeve 140 is fixedly connected with the vehicle body 200.
In some embodiments, the width of the sleeve 140 is greater than the width of the cavity 111, so that the sleeve 140 can be partially exposed out of the cavity 111, and the portion of the sleeve 140 exposed out of the cavity 111 is connected to the vehicle body 200, so as to prevent the sleeve 140 from interfering with the rotation of the wheel body 112 when connected to the vehicle body 200. In other embodiments, the width of the sleeve 140 may be equal to the width of the cavity 111 as long as the sleeve 140 is connected to the body 200.
Referring to fig. 2, the mileage measuring device 100 further includes a fixing plate 150 and a suspension arm 160, the fixing plate 150 is fixedly connected to the vehicle body 200, and the sleeve 140 and the fixing plate 150 are respectively connected to two ends of the suspension arm 160, so that the measuring wheel 110 and the wheel 300 are arranged side by side at an interval.
Specifically, referring to fig. 3, the suspension arm 160 includes a first arm 161, a second arm 162 and a third arm 163, the third arm 163 is connected to the first arm 161 and the second arm 162 at an included angle, so that the first arm 161 and the second arm 162 are parallel to each other and located on different planes, the first arm 161 is connected to the fixing plate 150, and the second arm 162 is connected to the sleeve 140, so that the measuring wheel 110 is not tightly attached to the vehicle body 200 and is spaced from the wheel 300.
In some embodiments, the first arm 161 is rotatably connected to the fixed plate 150 by a rotating member 164 to adjust the height of the measuring wheel 110, the rotating member 164 is a bearing 130, and the second arm 162 is connected to the sleeve 140 by a fastener such as a screw or a bolt. In other embodiments, the first arm 161 and the fixing plate 150 can be fixedly connected by a fastener, which is a screw or a bolt.
Further, referring to fig. 2, the unmanned forklift further includes a supporting assembly 500, and the supporting assembly 500 is held by the cantilever 160 and connected to the fixing plate 150 for providing a supporting force to make the measuring wheel 110 close to the ground.
Specifically, referring to fig. 5, the supporting assembly 500 includes a supporting base 510 and an elastic member 520, the cantilever 160 is provided with a positioning plate 170, the elastic member 520 is sleeved on the supporting base 510 and supported between the supporting base 510 and the positioning plate 170, and the supporting base 510 is connected to the fixing plate 150. The elastic member 520 is a spring or a leaf spring.
In some embodiments, referring to fig. 5, the support 510 includes a first connection portion 511, a second connection portion 512, and a position-limiting portion 513, the position-limiting portion 513 is connected between the first connection portion 511 and the second connection portion 512, a radial dimension of the position-limiting portion 513 is larger than a dimension of the second connection portion 512, a through hole 171 is disposed on the positioning plate 170, the support 510 and the elastic member 520 are inserted into the through hole 171, the elastic member 520 is sleeved on the second connection portion 512 and abuts between the position-limiting portion 513 and the positioning plate 170, and the first connection portion 511 and the fixing plate 150 are connected by a pin 514. In other embodiments, the first connection portion 511 and the fixing plate 150 may be connected by welding or riveting.
Furthermore, the unmanned forklift further comprises a controller (not shown in the figure), the controller, the encoder 120 and the driving mechanism are electrically connected, the rotation angle measured by the encoder 120 can be transmitted to the controller, an operator calculates the advancing mileage of the unmanned forklift according to the obtained information, and the controller controls the driving mechanism to adjust the advancing speed of the unmanned forklift, so that the cargo conveying efficiency of the unmanned forklift is improved conveniently.
The unmanned forklift is provided with the mileage measuring device 100, the wheels 300 rotate to drive the measuring wheels 110 to synchronously rotate, and the rotating angles of the measuring wheels 110 are detected through the encoders 120, so that the advancing mileage of the unmanned forklift is calculated, and the unmanned forklift is simple and convenient to operate, accurate in measurement and reasonable in structural design.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A mileage measuring device characterized by comprising:
a measuring wheel; and
the encoder comprises a fixed part and a movable part which are connected in a rotating mode, the fixed part is embedded in the measuring wheel, the movable part is partially exposed out of the measuring wheel, the movable part partially exposed out of the measuring wheel is fixedly connected with the measuring wheel, and the measuring wheel can drive the movable part to rotate so as to detect the rotating angle of the measuring wheel.
2. The mileage measuring device according to claim 1 wherein a cavity is provided in the measuring wheel, the fixed part is in rolling contact with an inner wall of the cavity, and the movable part is partially located outside the cavity and connected to the measuring wheel through a connecting member.
3. The mileage measuring device according to claim 2, wherein the connecting member includes a connecting plate and a positioning shaft, the connecting plate is covered on the opening of the cavity and connected to the measuring wheel, and the connecting plate is fastened to the movable portion by the positioning shaft.
4. The mileage measuring device according to claim 1, wherein the measuring wheel includes a wheel body and a receiving portion, the receiving portion is protruded from one side of the wheel body, the fixing portion is embedded in the receiving portion, and the movable portion is exposed from the receiving portion and connected to the wheel body.
5. An unmanned forklift, comprising:
a vehicle body;
the driving mechanism is used for driving the vehicle body to move;
the pallet fork is connected to the vehicle body and used for supporting cargos;
the wheels are mounted at the bottom of the vehicle body; and
a mileage measuring device as set forth in any one of claims 1 to 4, mounted on the underbody, the measuring wheel being disposed side by side with a spacing from the wheel, and the measuring wheel being disposed coaxially with the wheel.
6. The unmanned forklift of claim 5, wherein the mileage measuring device further comprises a sleeve, the sleeve is sleeved on the encoder and is arranged in the measuring wheel in a rolling manner, and the sleeve is connected with the forklift body.
7. The unmanned lift truck of claim 6, wherein the mileage measuring device further comprises a fixing plate fixed to the truck body and a cantilever connected to the sleeve and the fixing plate so that the measuring wheel and the wheel are arranged side by side at an interval.
8. The unmanned forklift of claim 7, wherein the boom includes a first arm, a second arm, and a third arm, the third arm being angled relative to the first arm and the second arm such that the first arm and the second arm are parallel to each other and in different planes, the first arm being connected to the body and the second arm being connected to the sleeve.
9. The unmanned lift truck of claim 7, further comprising a hold-down assembly captured to the boom and connected to the fixed plate for providing a hold-down force to hold the gage wheel against the ground.
10. The unmanned forklift as claimed in claim 9, wherein the abutting assembly comprises a support and an elastic member, the elastic member is sleeved on the support, a positioning plate is arranged on the cantilever, a through hole is arranged on the positioning plate, the support and the elastic member are inserted into the through hole, the elastic member abuts between the support and the positioning plate, and the support is connected with the fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922443633.0U CN212127420U (en) | 2019-12-30 | 2019-12-30 | Mileage measuring device and unmanned forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922443633.0U CN212127420U (en) | 2019-12-30 | 2019-12-30 | Mileage measuring device and unmanned forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212127420U true CN212127420U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922443633.0U Active CN212127420U (en) | 2019-12-30 | 2019-12-30 | Mileage measuring device and unmanned forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212127420U (en) |
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2019
- 2019-12-30 CN CN201922443633.0U patent/CN212127420U/en active Active
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