CN211141320U - Single-beam crane trolley capable of achieving accurate positioning - Google Patents
Single-beam crane trolley capable of achieving accurate positioning Download PDFInfo
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- CN211141320U CN211141320U CN201922267970.9U CN201922267970U CN211141320U CN 211141320 U CN211141320 U CN 211141320U CN 201922267970 U CN201922267970 U CN 201922267970U CN 211141320 U CN211141320 U CN 211141320U
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- beam crane
- crane trolley
- side plates
- single beam
- driving device
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Abstract
The utility model provides a single-beam crane trolley with accurate positioning, which comprises two side plates respectively arranged at the left and right sides of an I-shaped steel, a track wheel rotatably arranged at the inner side of each side plate, a driving device arranged on one side plate, and a pin shaft connected between the two side plates; the rail wheel is arranged on the lower side wing plate of the I-shaped steel in a sliding manner; the transmission shaft is connected between the two side plates, the gear is arranged on the transmission shaft, and the rack is arranged at the bottom of the I-shaped steel and parallel to the length direction of the I-shaped steel; the rack is meshed with the gear, and the driving device is used for driving the transmission shaft to rotate. The single-beam crane trolley has high displacement control precision and positioning precision.
Description
Technical Field
The utility model relates to a jacking equipment technical field especially relates to a monospar monkey of accurate positioning.
Background
The single-beam crane drives the electric hoist to move along the I-steel by means of a trolley which runs on the I-steel, and fig. 3 is a structural schematic diagram of a common single-beam crane trolley which comprises two side plates 1 ' which are respectively arranged at the left side and the right side of the I-steel 90, a track wheel 2 ' which is rotatably arranged at the inner sides of the side plates, a driving device 3 ' which is arranged on one side plate 1 ', and a pin shaft 4 ' which is connected between the two side plates; the rail wheels 2 'are arranged on wing plates on the lower sides of the I-shaped steels 90 in a sliding mode, the driving device 3' is used for driving the rail wheels 2 'on the same side to rotate so as to drive the whole trolley to move along the I-shaped steels 90, and the pin shafts 4' are used for being connected with the electric block.
The driving device 3 ' of the trolley generally comprises a conical rotor motor, the impact is large when the driving device 3 ' runs, the driving device drives the track wheel 2 ' on one side of the driving device to rotate, the track wheel 2 ' on the other side of the driving device is driven, the trolley is twisted due to the large impact when the driving device is started and stopped, the track wheel 2 ' is easy to slip when the driving device is started and stopped, the running distance of the trolley cannot be effectively controlled, and the phenomena all cause the displacement control precision of the trolley to be low and the accurate positioning to be unavailable for hoisting parts in the high-precision positioning assembly work.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies of the prior art, an object of the utility model is to provide a single beam crane trolley that can pinpoint.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a single-beam crane trolley capable of being accurately positioned comprises two side plates, a rail wheel, a driving device and a pin shaft, wherein the two side plates are respectively arranged on the left side and the right side of an I-steel, the rail wheel is rotatably arranged on the inner sides of the side plates, the driving device is arranged on one side plate, and the pin shaft is connected between the two side plates; the rail wheel is arranged on the lower side wing plate of the I-shaped steel in a sliding manner;
the transmission shaft is connected between the two side plates, the gear is arranged on the transmission shaft, and the rack is arranged at the bottom of the I-shaped steel and parallel to the length direction of the I-shaped steel; the rack is meshed with the gear, and the driving device is used for driving the transmission shaft to rotate.
In the precisely-positioned single-beam crane trolley, one end of the transmission shaft is provided with a rotary encoder.
In the precisely-positioned single-beam crane trolley, the rack is arranged in the middle of the bottom of the I-shaped steel.
In the precisely-positioned single-beam crane trolley, at least two rail wheels are arranged on the same side plate.
In the precisely positioned single-beam crane trolley, the transmission shaft is connected with the two side plates through bearings.
In the precisely-positioned single-beam crane trolley, the driving device comprises a motor.
In the precisely positioned single-beam crane trolley, the driving device further comprises a speed reducer.
In the precisely positioned single-beam crane trolley, the motor is a variable frequency motor.
In the precisely positioned single-beam crane trolley, the motor is a cage-shaped conical rotor motor.
Has the advantages that:
the utility model provides a pair of single beam monkey of accurate positioning can guarantee through the cooperation of rack with the gear that the dolly strictly presses rectilinear movement, can avoid starting the pendulum of turning round when parkking and the problem of skidding, compares with prior art, and its displacement control precision is higher, and positioning accuracy is higher.
Drawings
Fig. 1 is a front view of the precisely positioned single-beam crane trolley provided by the present invention.
Fig. 2 is a side view of the utility model provides a single beam crane trolley of accurate positioning.
Fig. 3 is a schematic structural view of a conventional single-beam crane trolley.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The following disclosure provides embodiments or examples for implementing different configurations of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
For convenience of description, herein, the left-right direction coincides with the left-right direction in fig. 1.
Referring to fig. 1-2, the utility model provides a single-beam crane trolley with accurate positioning, which comprises two side plates 1 respectively arranged at the left and right sides of an i-steel 90, a track wheel 2 rotatably arranged at the inner side of the side plate 1, a driving device 3 arranged on one side plate 1, and a pin shaft 4 connected between the two side plates; the rail wheel 2 is arranged on a lower side wing plate of the I-shaped steel 90 in a sliding mode;
the rack is characterized by further comprising a transmission shaft 5 connected between the two side plates 1, a gear 6 arranged on the transmission shaft 5, and a rack 7 arranged at the bottom of the I-shaped steel 90 and parallel to the length direction of the I-shaped steel 90; the rack 7 is meshed with the gear 6, and the driving device 6 is used for driving the transmission shaft 5 to rotate.
Can guarantee through the cooperation of rack and gear that the dolly strictly follows rectilinear movement, and the motion is more steady, can avoid starting the torsion pendulum and the problem of skidding when parkking, compares with prior art, and its displacement control precision is higher, and positioning accuracy is higher.
In some preferred embodiments, see fig. 1, one end of the drive shaft 5 is provided with a rotary encoder 8. The transmission shaft 5 can drive the detection shaft of the rotary encoder 8 to synchronously rotate when rotating, so that the rotating angle of the transmission shaft 5 can be measured in real time, the linear moving distance of the trolley can be obtained by combining the rotating angle and the diameter of the gear 6 through calculation of an internal program, the operation of the driving device 3 is controlled, and the displacement control precision and the positioning precision are further improved.
Preferably, the rack 7 is arranged in the middle of the bottom of the I-beam 90, at the moment, the rack 7 is over against a web plate of the I-beam 90, the structural strength of the position is high, the rack is not easy to deform, and the straightness of the rack 7 can be guaranteed to be unchanged, so that the displacement control precision and the positioning precision are not influenced.
In some embodiments, at least two track wheels 2 are disposed on the same side plate 1, and as shown in fig. 2, two track wheels 2 are disposed on the same side plate 1. The at least two track wheels 2 are arranged on the same side, so that the trolley can be prevented from swinging around the wheel shafts of the track wheels 2, once the trolley swings around the wheel shafts of the track wheels 2, a hoisted object can swing along with the trolley, and therefore the positioning accuracy is reduced and even the safety is affected.
In this embodiment, the transmission shaft 5 is connected with the two side plates 1 through bearings to reduce friction.
In particular, the drive means 3 comprise an electric motor 3.1.
In some preferred embodiments, the driving device 3 further comprises a speed reducer 3.2, and the speed reducer 3.2 can improve the output torque and ensure that the trolley can be effectively driven to move; on the other hand, the distance that the motor rotates the trolley to drive the trolley to move can be reduced, so that the trolley moving error caused by the unit angle error of the rotation of the motor is smaller, and the displacement control precision can be improved.
In some preferred embodiments, the motor 3.1 is a variable frequency motor, and can gradually accelerate when starting and gradually decelerate when stopping, so that excessive impact generated when starting and stopping can be avoided, the running stability is improved, and the safety reliability and the service life of the whole trolley can be improved.
In the present embodiment, the motor 3.1 is a cage-type conical rotor motor, but is not limited thereto.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-mentioned preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and the embodiments are substantially the same as the present invention.
Claims (9)
1. A single-beam crane trolley capable of being accurately positioned comprises two side plates, a rail wheel, a driving device and a pin shaft, wherein the two side plates are respectively arranged on the left side and the right side of an I-steel, the rail wheel is rotatably arranged on the inner sides of the side plates, the driving device is arranged on one side plate, and the pin shaft is connected between the two side plates; the rail wheel is arranged on the lower side wing plate of the I-shaped steel in a sliding manner; it is characterized in that the preparation method is characterized in that,
the transmission shaft is connected between the two side plates, the gear is arranged on the transmission shaft, and the rack is arranged at the bottom of the I-shaped steel and parallel to the length direction of the I-shaped steel; the rack is meshed with the gear, and the driving device is used for driving the transmission shaft to rotate.
2. The precisely positioned single beam crane trolley of claim 1 wherein one end of said drive shaft is provided with a rotary encoder.
3. The single beam crane trolley of claim 1 wherein the rack is positioned substantially midway along the bottom of the i-steel.
4. An accurately positioned single beam crane trolley according to claim 1 wherein at least two rail wheels are provided on the same side plate.
5. The single beam crane trolley of claim 1 wherein the drive shaft is connected to both side plates by bearings.
6. A single beam trolley according to any of claims 1-5, wherein the drive means comprises an electric motor.
7. The precisely positioned single beam crane trolley of claim 6 wherein said drive means further comprises a speed reducer.
8. The precisely positioned single beam crane trolley of claim 6 wherein said motor is a variable frequency motor.
9. The precisely positioned single beam crane trolley of claim 7 wherein said motor is a cage type conical rotor motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267970.9U CN211141320U (en) | 2019-12-17 | 2019-12-17 | Single-beam crane trolley capable of achieving accurate positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267970.9U CN211141320U (en) | 2019-12-17 | 2019-12-17 | Single-beam crane trolley capable of achieving accurate positioning |
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| Publication Number | Publication Date |
|---|---|
| CN211141320U true CN211141320U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922267970.9U Active CN211141320U (en) | 2019-12-17 | 2019-12-17 | Single-beam crane trolley capable of achieving accurate positioning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047237A (en) * | 2020-09-24 | 2020-12-08 | 纽科伦（新乡）起重机有限公司 | Module combined type electric single beam |
-
2019
- 2019-12-17 CN CN201922267970.9U patent/CN211141320U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047237A (en) * | 2020-09-24 | 2020-12-08 | 纽科伦（新乡）起重机有限公司 | Module combined type electric single beam |
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