CN219971670U - Arm support oil cylinder transmission device and overhead working truck - Google Patents
Arm support oil cylinder transmission device and overhead working truck Download PDFInfo
- Publication number
- CN219971670U CN219971670U CN202321325432.0U CN202321325432U CN219971670U CN 219971670 U CN219971670 U CN 219971670U CN 202321325432 U CN202321325432 U CN 202321325432U CN 219971670 U CN219971670 U CN 219971670U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- arm support
- pulley
- rope
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 42
- 239000004677 Nylon Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model belongs to the technical field of overhead working trucks, and particularly discloses a boom cylinder transmission device and an overhead working truck. The arm support oil cylinder transmission device comprises a multi-stage arm support which is sequentially nested from outside to inside, and further comprises an oil cylinder, an oil cylinder bracket, a first pulley, a transmission rope and a rope guide piece. The arm support oil cylinder transmission device is applied to the overhead working truck, a chain used for extending and transmitting between adjacent arm supports of the overhead working truck is reserved, and a chain used for retracting and transmitting between the adjacent arm supports of the overhead working truck is omitted; when the arm support retracts, the arm support oil cylinder transmission device drives the final-stage arm support (arm support C) to retract downwards, and the arm support oil cylinder transmission device can sequentially drive all the previous-stage arm supports to retract by being matched with the chain originally used for extending transmission. Therefore, the arrangement of chains between adjacent arm frames is simplified, the sectional area of the arm frames is reduced, the compact design of the arm frames is realized, the assembly of the arm frames is convenient, and the assembly efficiency of the arm frames is improved.
Description
Technical Field
The utility model belongs to the technical field of overhead working trucks, and relates to an arm support oil cylinder transmission device and an overhead working truck.
Background
The overhead working truck is a special vehicle for transporting workers and equipment to perform overhead working. The existing common overhead working truck mainly comprises two types of folding arm type and straight arm type, and the straight arm type overhead working truck is accepted by more and more users due to higher operation flexibility, so that the application prospect is better. The straight arm type overhead working truck generally comprises a truck chassis, an arm support and a working platform, wherein a turntable is arranged on the truck chassis, the lower end of the arm support is connected with the turntable, the working platform is arranged at the upper end of the arm support, the arm support is extended and lifted to transfer the working platform to an overhead working area, and the working platform is reset after the arm support is retracted and fallen. The arm support of the overhead working truck is driven by the oil cylinder to extend and retract by a chain, wherein the adjacent arm support is connected with a chain for extending and driving and a chain for retracting and driving. Therefore, the chain occupies more space in the arm support, so that the sectional area of the arm support is larger, and the compact design of the arm support is not facilitated. And the joints of the chain are more, so that the assembly efficiency of the arm support is lower when the chain is assembled.
Disclosure of Invention
The utility model aims to provide an arm support oil cylinder transmission device and an overhead working truck, so as to simplify the arrangement of chains between adjacent arm supports.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the arm support oil cylinder transmission device comprises a multi-stage arm support which is sequentially nested from outside to inside, and further comprises an oil cylinder, an oil cylinder bracket, a first pulley, a transmission rope and a rope guide piece;
defining any one stage of arm support in the multi-stage arm support as an arm support A, defining the next stage of arm support as an arm support B, and defining the final stage of arm support as an arm support C;
the tail end of the telescopic rod of the oil cylinder is assembled and connected with the lower end of the oil cylinder support, the cylinder body of the oil cylinder is movably matched with the oil cylinder support, and the telescopic rod of the oil cylinder stretches and contracts relative to the cylinder body so as to drive the cylinder body of the oil cylinder to linearly reciprocate relative to the oil cylinder support;
the tail end of the telescopic rod of the oil cylinder and/or the oil cylinder support is connected with the arm support A, the cylinder body of the oil cylinder is connected with the arm support B, and the rope guide piece is arranged on the arm support C;
the left side and the right side of the cylinder body of the oil cylinder, which is close to one end of the telescopic rod, are both rotationally connected with the first pulley;
one end of the driving rope is connected with the oil cylinder support, the driving rope firstly bypasses the first pulley on the left side, the driving rope bypasses the rope guiding piece, the driving rope bypasses the first pulley on the right side, and the other end of the driving rope is connected with the oil cylinder support.
Preferably, at least one second pulley block is further comprised, the second pulley block comprising a second front pulley and a second rear pulley arranged in pairs;
the left side and the right side of the oil cylinder support are both rotationally connected with the second front pulley, and the left side and the right side of one end, close to the telescopic rod, of the cylinder body of the oil cylinder are both rotationally connected with the second rear pulley;
between the first pulley on the left side and the rope guiding piece, the transmission rope sequentially bypasses the second front pulley on the left side and the second rear pulley on the left side;
between the rope guide and the first pulley on the right side, the driving rope sequentially passes around the second rear pulley on the right side and the second front pulley on the right side.
Preferably, a guide frame is arranged at one end, far away from the telescopic rod, of the cylinder body of the oil cylinder, a guide wheel is rotatably connected to the guide frame, and the guide wheel is in rolling contact with the inner wall of the multi-stage arm support.
Preferably, the upper end and the lower end of the guide frame are respectively provided with a guide wheel.
Preferably, the left end and the right end of the guide frame are respectively provided with a first guide block.
Preferably, the first guide block is made of nylon material.
Preferably, the upper end of the oil cylinder support is provided with a plurality of second guide blocks.
Preferably, the second guide block is made of nylon material.
Preferably, the rope guide is arranged as a semicircular wheel, and the driving rope contacts with the arc edge of the semicircular wheel.
An overhead working truck is provided with the boom cylinder transmission device.
Compared with the prior art, the utility model has the following beneficial effects:
as described above, the present utility model relates to a boom cylinder transmission device, which is applied to an overhead working truck, and retains a chain for extending transmission between adjacent booms of the overhead working truck, and omits a chain for retracting transmission between adjacent booms of the overhead working truck; when the arm support retracts, the arm support oil cylinder transmission device drives the final-stage arm support (arm support C) to retract downwards, and the arm support oil cylinder transmission device can sequentially drive all the previous-stage arm supports to retract by being matched with the chain originally used for extending transmission. Therefore, the arrangement of chains between adjacent arm frames is simplified, the sectional area of the arm frames is reduced, the compact design of the arm frames is realized, the assembly of the arm frames is convenient, and the assembly efficiency of the arm frames is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a perspective view of a boom cylinder drive apparatus according to an embodiment of the present utility model;
FIG. 2 is a front view of a boom cylinder drive apparatus according to an embodiment of the present utility model;
FIG. 3 is a top view of a boom cylinder drive apparatus according to an embodiment of the present utility model;
FIG. 4 is a front view of a cylinder in an embodiment of the present utility model;
FIG. 5 is a top view of a cylinder in an embodiment of the present utility model;
FIG. 6 is a front view of a cylinder mount according to an embodiment of the present utility model;
fig. 7 is a top view of a cylinder mount in an embodiment of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
Examples:
as shown in fig. 1 to 7, the boom cylinder transmission device in the embodiment comprises a multi-stage boom which is nested from outside to inside in sequence, and further comprises a cylinder 1, a cylinder bracket 2, a first pulley 3, a transmission rope 4 and a rope guide 5.
Any one stage of arm support in the multi-stage arm support is defined as an arm support A, the next stage of arm support in the arm support A is defined as an arm support B, and the final stage of arm support is defined as an arm support C.
The tail end of the telescopic rod of the oil cylinder 1 is fixed or hinged with the lower end of the oil cylinder support 2 through bolts, the oil cylinder 1 is positioned in the oil cylinder support 2, and the cylinder body of the oil cylinder 1 is in sliding fit with the oil cylinder support 2. The telescopic rod of the oil cylinder 1 stretches and contracts relative to the cylinder body to drive the cylinder body of the oil cylinder 1 to linearly reciprocate relative to the oil cylinder bracket 2.
The tail end of a telescopic rod of the oil cylinder 1 is connected with the arm support A, a cylinder body of the oil cylinder 1 is connected with the arm support B, and the rope guide piece 5 is arranged on the arm support C.
The left side and the right side of the cylinder body of the oil cylinder 1, which is close to one end of the telescopic rod, are rotatably connected with the first pulley 3 through a pulley seat 9.
One end of the driving rope 4 is connected with the upper end of the oil cylinder support 2 through a fixed pin shaft 8, the driving rope 4 firstly bypasses the first pulley 3 on the left side, then bypasses the rope guiding piece 5, the driving rope 4 bypasses the first pulley 3 on the right side, and the other end of the driving rope 4 is connected with the upper end of the oil cylinder support 2 through the fixed pin shaft 8. At this time, the arm support A is used as a first-stage arm support, the corresponding arm support is of three stages which are nested from outside to inside in sequence, the arm support B is a second-stage arm support, and the arm support C is a third-stage arm support.
On the basis, the crane further comprises at least one second pulley block, wherein a first-stage arm support is added when one second pulley block is added. The present embodiment is described taking a second pulley block as an example. At this time, the arm support A is used as a first-stage arm support, the corresponding arm support is of four stages which are nested from outside to inside in sequence, the arm support B is of a second-stage arm support, and the arm support C is of a fourth-stage arm support.
The chain used for extending and driving between the adjacent arm frames of the overhead working truck is arranged as follows: the upper end of the second-stage arm support is rotationally connected with a first sprocket, one end of a first chain is connected with the upper end of the first-stage arm support, and after the first chain bypasses the first sprocket, the first chain is connected with the lower end of the third-stage arm support; the upper end of the third-stage arm support is rotationally connected with a second sprocket, one end of a second chain is connected with the upper end of the second-stage arm support, and after the second chain bypasses the second sprocket, the second chain is connected with the lower end of the fourth-stage arm support.
The second pulley block comprises a second front pulley 61 and a second rear pulley 62 which are arranged in pairs, the left side and the right side of the oil cylinder bracket 2 are respectively connected with the second front pulley 61 through the wheel seat 9 in a rotating way, and the left side and the right side of one end, close to the telescopic rod, of the cylinder body of the oil cylinder 1 are respectively connected with the second rear pulley 62 through the wheel seat 9 in a rotating way. Between the first pulley 3 on the left and the rope guide 5, the driving rope 4 passes around the second front pulley 61 on the left and the second rear pulley 62 on the left in sequence; between the rope guide 5 and the first pulley 3 on the right, the driving rope 4 passes around the second rear pulley 62 on the right and the second front pulley 61 on the right in sequence.
One end of the cylinder body of the oil cylinder 1, which is far away from the telescopic rod, is provided with a guide frame 71, a guide wheel 72 is rotationally connected to the guide frame 71, and the guide wheel 72 is in rolling contact with the inner wall of the multi-stage arm support. In the relative telescopic process of the arm support, the guide wheels 72 are in rolling contact with the inner wall of the multi-stage arm support, so that the oil cylinder 1 can be guided to move along the inner wall of the arm support. Wherein, a guide wheel 72 is arranged at the upper and lower ends of the guide frame 71, so that the guide wheel 72 is in rolling contact with the upper and lower inner walls of the multi-stage arm frame. The left and right ends of the guide frame 71 are provided with first guide blocks 73, so that the first guide blocks 73 contact the left and right inner walls of the multi-stage arm frame. The first guide block 73 is made of nylon material, so that the first guide block 73 is a wear part to reduce the abrasion to the inner wall of the arm support.
A plurality of second guide blocks 74 are arranged on the peripheral edge of the upper end of the oil cylinder support 2, so that the second guide blocks 74 contact the left and right inner walls of the multi-stage arm support, and the movement of the oil cylinder support 2 along the inner walls of the arm support is guided. The second guide block 74 is made of nylon material, so that the second guide block 74 is a wear part to reduce wear on the inner wall of the arm support.
The rope guide 5 is arranged as a semicircle wheel, and the driving rope 4 contacts the arc edge of the semicircle wheel. Wherein, the circular arc limit of semicircle wheel sets up to groove structure, and driving rope 4 is located the recess.
An overhead working truck is provided with the boom cylinder transmission device of the embodiment.
The present embodiment has been described in detail with reference to the accompanying drawings. From the above description, the person skilled in the art should clearly know the boom cylinder transmission device of the present utility model. The arm support oil cylinder transmission device is applied to the overhead working truck, a chain used for extending and transmitting between adjacent arm supports of the overhead working truck is reserved, and a chain used for retracting and transmitting between adjacent arm supports of the overhead working truck is omitted. When the arm support stretches out, the telescopic rod of the arm support oil cylinder transmission device stretches out relative to the cylinder body, the first pulley 3 and the second rear pulley 62 move upwards, the rope guide 5 moves upwards along with the final-stage arm support (arm support C) by four times of oil cylinder travel, and the chain is matched for stretching out transmission to drive each front-stage arm support to stretch out. When the arm support is retracted, the telescopic rod of the arm support oil cylinder transmission device is retracted relative to the cylinder body, the first pulley 3 and the second rear pulley 62 move downwards, the rope guide 5 moves downwards by four times of oil cylinder travel, the final-stage arm support (arm support C) is driven to retract downwards, and all the front-stage arm supports can be sequentially driven to retract by matching with the chain originally used for extending and transmitting. Therefore, the arrangement of chains between adjacent arm frames is simplified, the sectional area of the arm frames is reduced, the compact design of the arm frames is realized, the assembly of the arm frames is convenient, and the assembly efficiency of the arm frames is improved.
Of course, the above-mentioned embodiments are only preferred embodiments of the present utility model, and not limiting the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model and should be protected by the present utility model.
Claims (10)
1. A boom cylinder transmission device is characterized in that,
the multi-stage arm support comprises a multi-stage arm support, an oil cylinder bracket, a first pulley, a transmission rope and a rope guide piece, wherein the multi-stage arm support is sequentially nested from outside to inside;
defining any one stage of arm support in the multi-stage arm support as an arm support A, defining the next stage of arm support as an arm support B, and defining the final stage of arm support as an arm support C;
the tail end of the telescopic rod of the oil cylinder is assembled and connected with the lower end of the oil cylinder support, the cylinder body of the oil cylinder is movably matched with the oil cylinder support, and the telescopic rod of the oil cylinder stretches and contracts relative to the cylinder body so as to drive the cylinder body of the oil cylinder to linearly reciprocate relative to the oil cylinder support;
the tail end of the telescopic rod of the oil cylinder and/or the oil cylinder support is connected with the arm support A, the cylinder body of the oil cylinder is connected with the arm support B, and the rope guide piece is arranged on the arm support C;
the left side and the right side of the cylinder body of the oil cylinder, which is close to one end of the telescopic rod, are both rotationally connected with the first pulley;
one end of the driving rope is connected with the oil cylinder support, the driving rope firstly bypasses the first pulley on the left side, the driving rope bypasses the rope guiding piece, the driving rope bypasses the first pulley on the right side, and the other end of the driving rope is connected with the oil cylinder support.
2. The boom cylinder transmission of claim 1, wherein,
the pulley block further comprises at least one second pulley block, wherein the second pulley block comprises a second front pulley and a second rear pulley which are arranged in pairs;
the left side and the right side of the oil cylinder support are both rotationally connected with the second front pulley, and the left side and the right side of one end, close to the telescopic rod, of the cylinder body of the oil cylinder are both rotationally connected with the second rear pulley;
between the first pulley on the left side and the rope guiding piece, the transmission rope sequentially bypasses the second front pulley on the left side and the second rear pulley on the left side;
between the rope guide and the first pulley on the right side, the driving rope sequentially passes around the second rear pulley on the right side and the second front pulley on the right side.
3. The boom cylinder transmission according to claim 1 or 2, characterized in that,
the cylinder body of the oil cylinder is provided with a guide frame at one end far away from the telescopic rod, the guide frame is rotationally connected with a guide wheel, and the guide wheel is in rolling contact with the inner wall of the multi-stage arm support.
4. The boom cylinder transmission of claim 3, wherein,
the upper end and the lower end of the guide frame are respectively provided with a guide wheel.
5. The boom cylinder transmission of claim 3, wherein,
the left end and the right end of the guide frame are respectively provided with a first guide block.
6. The boom cylinder transmission of claim 5, wherein,
the first guide block is made of nylon material.
7. The boom cylinder transmission according to claim 1 or 2, characterized in that,
the upper end of the oil cylinder support is provided with a plurality of second guide blocks.
8. The boom cylinder transmission of claim 7, wherein,
the second guide block is made of nylon material.
9. The boom cylinder transmission according to claim 1 or 2, characterized in that,
the rope guide piece is arranged to be a semicircular wheel, and the transmission rope is contacted with the arc edge of the semicircular wheel.
10. An aerial working vehicle, characterized in that: the overhead working truck is provided with the boom cylinder transmission device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321325432.0U CN219971670U (en) | 2023-05-29 | 2023-05-29 | Arm support oil cylinder transmission device and overhead working truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321325432.0U CN219971670U (en) | 2023-05-29 | 2023-05-29 | Arm support oil cylinder transmission device and overhead working truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219971670U true CN219971670U (en) | 2023-11-07 |
Family
ID=88589164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321325432.0U Active CN219971670U (en) | 2023-05-29 | 2023-05-29 | Arm support oil cylinder transmission device and overhead working truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219971670U (en) |
-
2023
- 2023-05-29 CN CN202321325432.0U patent/CN219971670U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112758818B (en) | Small material crane and working method thereof | |
| CN212421354U (en) | Synchronous telescoping device of multisection arm | |
| CN110759254A (en) | Crane suitable for roadway hoisting | |
| CN112606732A (en) | Battery replacement system | |
| CN219971670U (en) | Arm support oil cylinder transmission device and overhead working truck | |
| CN111452087A (en) | Synchronous telescoping device of multisection arm | |
| CN209797402U (en) | Reverse telescopic system and automatic handling equipment | |
| CN216038492U (en) | Forklift telescopic boom structure | |
| CN220056280U (en) | Double-oil-cylinder telescopic boom for overhead working truck and overhead working truck | |
| CN116675160A (en) | Double-oil-cylinder telescopic boom for overhead working truck and overhead working truck | |
| CN202011707U (en) | Synchronous arm-body telescopic device with single cylinder and sets of inhaul cables of lorry-mounted crane | |
| CN105460810B (en) | A kind of built-in three hydraulic cylinder lorry-mounted crane telescopic arms | |
| FI67526C (en) | KEDJEDRIFT FOER DELARNA AV EN TELESKOPARM | |
| CN219971671U (en) | Oil cylinder built-in arm support oil supply mechanism and overhead working truck | |
| CN215711505U (en) | Forklift lifting device and forklift | |
| CN206307929U (en) | A kind of joint arm telescoping mechanism of single telescopic oil cylinder five for carrying guiding | |
| CN113931902A (en) | Oil cylinder guide mechanism and hoisting equipment | |
| CN214879616U (en) | Folding crane convenient to transition | |
| CN213129328U (en) | Window cleaning machine | |
| CN211004294U (en) | Speed-increasing telescopic mechanism of crane boom | |
| CN216946104U (en) | Boom telescopic traction mechanism and aerial working truck | |
| CN208411789U (en) | A kind of carrier loader | |
| CN112607678A (en) | Four-section arm telescopic mechanism of overhead working truck | |
| CN217623514U (en) | Connecting rod type multistage landing leg telescopic transmission device and engineering vehicle | |
| CN218575529U (en) | Bidirectional telescopic sliding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |