CN211258641U

CN211258641U - Swing arm support and concrete guniting vehicle

Info

Publication number: CN211258641U
Application number: CN201922456929.6U
Authority: CN
Inventors: 王祥军; 龚俊; 曾繁武; 宋祖源; 周鹤; 管付如
Original assignee: Hunan Wuxin Tunnel Intelligent Equipment Co Ltd
Current assignee: Hunan Wuxin Tunnel Intelligent Equipment Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-14
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a concrete spraying vehicle technical field especially relates to a swing cantilever crane and concrete spraying vehicle. The swing arm frame comprises a first section arm, a second section arm, a main shaft, an angle encoder, a transmission shaft and a coupler, wherein the first section arm is hinged with the main shaft, and the second section arm is fixedly connected with the main shaft; the angle encoder is fixed relatively with first festival arm and can dismantle the connection, and the rotation axis of angle encoder passes through the shaft coupling and is coaxial fixed with the transmission shaft, has seted up the locating hole on the main shaft, transmission shaft and locating hole sliding fit, and the locating hole can be to transmission shaft circumference location. The concrete guniting vehicle comprises the swing arm support. The utility model provides a swing cantilever crane and concrete spraying vehicle, the dismouting process that has the angle encoder is simple and convenient, technical advantages such as labour saving and time saving.

Description

Swing arm support and concrete guniting vehicle

Technical Field

The utility model relates to a concrete spraying vehicle technical field especially relates to a swing cantilever crane and concrete spraying vehicle.

Background

The swing arm support generally has more than two knuckle arms, installs the angle encoder between two adjacent knuckle arms to utilize the angle encoder to convert the relative angular displacement between two knuckle arms into the signal of telecommunication, in order to provide the controller on the concrete spraying car, make the concrete spraying car can realize intellectuality.

However, when the angle encoder on the existing swing arm support is disassembled, the main shaft between the two knuckle arms needs to be disassembled, and then the angle encoder needs to be disassembled from the main shaft, so that the process is very complicated, and time and labor are wasted; similarly, when the angle encoder is installed, the main shaft between the two knuckle arms needs to be detached firstly, then the angle encoder is installed on the main shaft, and finally the main shaft is installed between the two knuckle arms again, so that the process is very complicated, and time and labor are wasted.

In summary, how to overcome the above-mentioned defects of the existing swing arm support is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a swing cantilever crane and concrete spraying vehicle to the angle encoder dismouting process of alleviating the swing cantilever crane existence among the prior art is loaded down with trivial details, technical problem that wastes time and energy.

The utility model provides a swing cantilever crane includes first festival arm, second festival arm, main shaft, angle encoder, transmission shaft and shaft coupling, first festival arm with the main shaft is articulated, second festival arm with main shaft fixed connection.

The angle encoder is relatively fixed with the first section arm and detachably connected with the first section arm, a rotating shaft of the angle encoder is coaxially fixed with the transmission shaft through the coupler, a positioning hole is formed in the main shaft, the transmission shaft is in sliding fit with the positioning hole, and the positioning hole can be used for circumferentially positioning the transmission shaft.

Preferably, as an implementation mode, the angle encoder is fixed on a mounting seat through a first fastening piece, and the mounting seat is connected with the first section arm through a second fastening piece.

Preferably, as an implementation mode, the mounting seat includes a base and a cover plate, the base is fixed on the first section arm through the second fastening member, the cover plate is fixed on the base through a third fastening member, and the angle encoder is fixed on the cover plate through the first fastening member.

Preferably, as an implementation mode, the mounting seat is provided with a mounting hole, and a hole wall of the mounting hole is attached to a side wall of the main shaft.

The swing arm support further comprises a protective cover, the protective cover covers the outside of the angle encoder, and the protective cover is fixed to the mounting seat through a fourth fastener.

Preferably, as an implementation mode, the side wall of the transmission shaft has a first flat surface portion, the side wall of the positioning hole has a second flat surface portion, and the first flat surface portion and the second flat surface portion are arranged oppositely and abut against each other.

Preferably, as an implementation mode, the cross section of the positioning hole is an ellipse, and the cross section of the part of the transmission shaft located in the positioning hole is an ellipse.

Preferably, as an implementation mode, the main shaft includes a main shaft body and a transition sleeve, the transition sleeve is fixed on the main shaft body, and the positioning hole is opened on the transition sleeve.

Preferably, as an implementation mode, the main shaft body is provided with a fixing hole, and the transition sleeve is embedded in the fixing hole.

Preferably, as an embodiment, the side wall of the transmission shaft has a third flat surface portion, the coupling has a fourth flat surface portion, the third flat surface portion and the fourth flat surface portion are disposed opposite to each other and abut against each other, and the third flat surface portion and the fourth flat surface portion are fixedly connected by a fifth fastening member.

Correspondingly, the utility model also provides a concrete spraying vehicle, including above-mentioned swing cantilever crane.

Compared with the prior art, the utility model has the advantages of:

the utility model provides a swing cantilever crane, including first festival arm, second festival arm and main shaft, first festival arm is articulated with the main shaft, second festival arm and main shaft fixed connection. Above-mentioned swing cantilever crane still includes angle encoder, transmission shaft and shaft coupling, the locating hole has been seted up on the main shaft, angle encoder and first festival arm relatively fixed, angle encoder's rotation axis passes through the shaft coupling and is coaxial fixed with the transmission shaft, and main epaxial locating hole can fix a position transmission shaft circumference, thereby, when second festival arm drives the main shaft and rotates around the axis of main shaft, angle encoder's rotation axis can rotate with the main shaft is synchronous, so, angle encoder alright acquire the turned angle of the first festival arm of second festival arm relatively.

It should be noted that the angle encoder and the first section arm are connected with each other in a detachable connection mode, and the transmission shaft is in sliding fit with the positioning hole in the main shaft, so that the angle encoder can be detached only by detaching the angle encoder from the first section arm and pulling out the angle encoder along the positioning hole in the main shaft; when the angle encoder needs to be installed, the rotating shaft of the angle encoder is only required to be aligned to the positioning hole in the main shaft, the angle encoder is pushed into the positioning hole in the main shaft, and then the angle encoder is fixed to the first section arm.

The utility model provides a concrete spraying vehicle, including above-mentioned swing cantilever crane, consequently, have all advantages of above-mentioned swing cantilever crane, the dismouting process of angle encoder is simple and convenient, labour saving and time saving.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a partial sectional view of a partial structure of a swing arm support according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic perspective view of a transmission shaft in a swing arm support according to an embodiment of the present invention.

Icon: 10-a first jointed arm; 20-a second jointed arm; 30-a main shaft; 40-an angle encoder; 50-a drive shaft; 60-a coupler; 70-a mounting seat; 80-a first fastener; 90-a second fastener; 100-a third fastener; 110-a protective cover; 120-a fourth fastener; 130-a fifth fastener;

301-a main shaft body; 302-a transition sleeve;

501-a first planar portion; 502-a third planar portion;

701-a base; 702-cover plate.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Referring to fig. 1 and 2, the present embodiment provides a swing arm support, which includes a first joint arm 10, a second joint arm 20, and a main shaft 30, where the first joint arm 10 is hinged to the main shaft 30, and the second joint arm 20 is fixedly connected to the main shaft 30. The swing arm support further comprises an angle encoder 40, a transmission shaft 50 and a coupler 60, a positioning hole is formed in the main shaft 30, the angle encoder 40 and the first section arm 10 are relatively fixed, a rotating shaft of the angle encoder 40 is coaxially fixed with the transmission shaft 50 through the coupler 60, and the positioning hole in the main shaft 30 can circumferentially position the transmission shaft 50, so that when the second section arm 20 drives the main shaft 30 to rotate around the axis of the main shaft 30, the rotating shaft of the angle encoder 40 can synchronously rotate with the main shaft 30, and therefore the angle encoder 40 can obtain the rotating angle of the second section arm 20 relative to the first section arm 10.

It should be noted that the angle encoder 40 and the first arm section 10 are connected in a detachable connection manner, and the transmission shaft 50 is in sliding fit with the positioning hole on the main shaft 30, so that the angle encoder 40 can be detached only by detaching the angle encoder 40 from the first arm section 10 and then pulling out the angle encoder 40 along the positioning hole on the main shaft 30; when angle encoder 40 needs to be installed, only need align the locating hole on main shaft 30 with angle encoder 40's rotation axis to with angle encoder 40 along the locating hole on main shaft 30 and push in, then, with angle encoder 40 fixed to first festival arm 10 can, the dismouting process is simple and convenient, labour saving and time saving.

Referring to fig. 1 and 2, in the specific structure of the swing arm support provided in this embodiment, an installation base 70 may be additionally provided, the angle encoder 40 is fixed to the installation base 70 by using a first fastening member 80, and the installation base 70 and the first arm section 10 are fixedly connected to each other by using a second fastening member 90, so that the indirect connection between the angle encoder 40 and the first arm section 10 is realized by the installation base 70, the first fastening member 80 and the second fastening member 90, and not only the detachable connection between the angle encoder 40 and the first arm section 10 is realized, but also the connection firmness is strong.

When it is desired to disassemble the angle encoder 40, the first fastener 80 can be removed, and then the angle encoder 40 can be detached from the mounting base 70; the second fastener 90 can also be removed, and then the mount 70 with the angle encoder 40 secured thereto can be removed from the first knuckle arm 10, and if the angle encoder 40 needs to be replaced, the first fastener 80 can be further removed, and then the angle encoder 40 can be removed from the mount 70.

The angle encoder 40 can be detached in any manner as required.

Referring to fig. 1 and 2, a base 701 and a cover 702 are provided in a specific structure of the mount 70, wherein the base 701 is fixed to the second link arm 20 by the second fastening member 90, the cover 702 is fixed to the base 701 by the third fastening member 100, and at the same time, the angle encoder 40 is fixed to the cover 702 by the first fastening member 80, so that the cover 702 can be used as an adaptor between the angle encoder 40 and the base 701; when the angle encoder 40 needs to be disassembled, the third fastener 100 may be disassembled, and then the cover plate 702 fixed with the angle encoder 40 may be removed from the base 701, that is, when the angle encoder 40 is disassembled, the base 701 may not be disassembled from the first joint arm 10, so as to reduce the abrasion of the first joint arm 10; further, if it is necessary to replace the angle encoder 40, the first fasteners 80 may be continuously removed to separate the angle encoder 40 from the cover plate 702, and then a new angle encoder 40 may be fixed to the cover plate 702 using the first fasteners 80, thereby enabling the cover plate 702 to be reused.

Preferably, can set up the mounting hole on mount pad 70, and the pore wall with the mounting hole is laminated with the lateral wall of main shaft 30, and simultaneously, add safety cover 110, cover safety cover 110 outside angle encoder 40, and utilize fourth fastener 120 to fix safety cover 110 on mount pad 70, thereby, mount pad 70, main shaft 30 and safety cover 110 just can enclose into an airtight space, make angle encoder 40 can hold in this airtight space, thereby, external adverse circumstances can be kept apart to angle encoder 40, reduce the influence of external adverse circumstances to angle encoder 40, improve angle encoder 40's sensitivity, and can prolong angle encoder 40's life.

As an implementation manner, referring to fig. 3, the side wall of the transmission shaft 50 has a first flat portion 501, and correspondingly, the side wall of the positioning hole has a second flat portion, and the first flat portion 501 and the second flat portion are disposed opposite to each other and abut against each other, so that the main shaft 30 cannot rotate in the positioning hole under the interaction between the first flat portion 501 and the second flat portion, and therefore, circumferential fixing of the positioning hole to the main shaft 30 can be achieved without adding other positioning structures, which is convenient for simplifying the installation steps and saving the cost.

As another possible implementation manner, the cross section of the positioning hole is set to be elliptical, and the cross section of the portion of the transmission shaft 50 located in the positioning hole is also set to be elliptical, so that the main shaft 30 cannot rotate in the positioning hole, and therefore, circumferential fixing of the positioning hole to the main shaft 30 can be achieved without adding other positioning structures, so that the installation steps are simplified, and cost is saved.

It should be noted that the cross-sectional shape of the transmission shaft 50 and the cross-sectional shape of the positioning hole may be any non-circular shape, and need not be the shapes defined in the above two embodiments.

Further, the specific structure of the spindle 30 includes a spindle body 301 and a transition sleeve 302, wherein the transition sleeve 302 is fixed on the spindle body 301, and the positioning hole is formed in the transition sleeve 302.

It should be noted that, in order to be able to bear the acting force between the first joint arm 10 and the second joint arm 20, the main spindle body 301 needs to have sufficient strength, that is, to have sufficient volume, and the transition sleeve 302 may be configured to have a smaller volume, so that compared with a structure in which the positioning hole is directly formed on the main spindle body 301, the positioning hole is formed on the transition sleeve 302 having a smaller volume, which is more convenient for processing.

Specifically, a fixing hole may be formed in the main shaft body 301, and the transition sleeve 302 is embedded in the fixing hole of the main shaft body 301, so as to enhance the connection strength between the transition sleeve 302 and the main shaft body 301.

Preferably, the side wall of the transmission shaft 50 has a third flat portion 502, the coupling 60 has a fourth flat portion, and the third flat portion 502 on the transmission shaft 50 and the fourth flat portion on the coupling 60 are oppositely disposed and abutted against each other, that is, at least a part of the contact surface between the transmission shaft 50 and the coupling 60 is a flat contact surface, on this basis, the third flat portion 502 and the fourth flat portion are fixedly connected together by using the fifth fastening member 130, so that the driven rod is not easily deflected relative to the coupling 60, the driving rod and the rotating shaft of the encoder are maintained in a coaxial state, the problem that the encoder is damaged due to the fact that the transmission shaft 50 and the rotating shaft of the encoder are not coaxial is alleviated, and furthermore, not only can the sensitivity of the encoder be improved, but also the service life of the encoder.

Specifically, the first fastener 80, the second fastener 90, the third fastener 100, the fourth fastener 120, and the fifth fastener 130 may be bolts or snaps.

The embodiment also provides a concrete guniting vehicle which comprises the swing arm support.

Therefore, the concrete spraying vehicle provided by the embodiment has all the advantages of the swing arm support, and the angle encoder 40 is simple and convenient to disassemble and assemble, and time and labor are saved.

To sum up, the utility model discloses a swing cantilever crane and concrete spraying vehicle, it has overcome a great deal of technical defect of traditional swing cantilever crane. The swing arm support and the concrete spraying vehicle provided by the embodiment have the technical advantages of simple and convenient disassembly and assembly process of the angle encoder 40, time saving, labor saving and the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A swing arm support is characterized by comprising a first section arm (10), a second section arm (20), a main shaft (30), an angle encoder (40), a transmission shaft (50) and a coupler (60), wherein the first section arm (10) is hinged with the main shaft (30), and the second section arm (20) is fixedly connected with the main shaft (30);

the angle encoder (40) and the first section arm (10) are fixed relatively and detachably connected, a rotating shaft of the angle encoder (40) is coaxially fixed with the transmission shaft (50) through the coupler (60), a positioning hole is formed in the spindle (30), the transmission shaft (50) is in sliding fit with the positioning hole, and the positioning hole can be used for circumferentially positioning the transmission shaft (50).

2. The oscillating arm support according to claim 1, characterized in that said angular encoder (40) is fixed to a mounting (70) by means of a first fastener (80), said mounting (70) being connected to said first pitch arm (10) by means of a second fastener (90).

3. The oscillating arm support according to claim 2, characterized in that said mounting seat (70) comprises a base (701) and a cover plate (702), said base (701) being fixed to said first arm (10) by means of said second fastening means (90), said cover plate (702) being fixed to said base (701) by means of a third fastening means (100), said angular encoder (40) being fixed to said cover plate (702) by means of said first fastening means (80).

4. The swing arm support according to claim 2, wherein the mounting seat (70) is provided with a mounting hole, and the wall of the mounting hole is attached to the side wall of the main shaft (30);

the swing arm support further comprises a protection cover (110), the protection cover (110) covers the outside of the angle encoder (40), and the protection cover (110) is fixed on the mounting base (70) through a fourth fastener (120).

5. The swing arm support according to claim 1, wherein the side wall of the transmission shaft (50) has a first plane portion (501), the side wall of the positioning hole has a second plane portion, and the first plane portion (501) and the second plane portion are oppositely arranged and abut against each other.

6. The oscillating arm support according to claim 1, characterized in that the cross section of the positioning hole is elliptical and the cross section of the portion of the transmission shaft (50) located in the positioning hole is elliptical.

7. The oscillating arm support according to claim 5 or 6, characterized in that the main shaft (30) comprises a main shaft body (301) and a transition sleeve (302), the transition sleeve (302) is fixed on the main shaft body (301), and the positioning hole is opened on the transition sleeve (302).

8. The swing arm support according to claim 7, wherein the main shaft body (301) is provided with a fixing hole, and the transition sleeve (302) is embedded in the fixing hole.

9. The swing arm support according to any one of claims 1 to 6, wherein the side wall of the transmission shaft (50) is provided with a third plane portion (502), the coupling (60) is provided with a fourth plane portion, the third plane portion (502) and the fourth plane portion are oppositely arranged and abut against each other, and the third plane portion (502) and the fourth plane portion are fixedly connected through a fifth fastening member (130).

10. A concrete guniting vehicle, characterized by comprising the swing arm support of any one of claims 1-9.