CN220535471U - Device for pre-configuring wrist arm - Google Patents
Device for pre-configuring wrist arm Download PDFInfo
- Publication number
- CN220535471U CN220535471U CN202322261846.8U CN202322261846U CN220535471U CN 220535471 U CN220535471 U CN 220535471U CN 202322261846 U CN202322261846 U CN 202322261846U CN 220535471 U CN220535471 U CN 220535471U
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- Prior art keywords
- sleeve
- cantilever
- jacking device
- bearing piece
- wrist
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- 210000000707 wrist Anatomy 0.000 title claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of wrist arm pre-matching, in particular to a device for wrist arm pre-matching. The utility model provides a device for cantilever pre-configuration, contains jacking device and bearing piece, jacking device with the bearing piece is all fixed in the mounting bracket, the mounting bracket is provided with the telescopic member, jacking device can drive the telescopic member extends or shortens and then makes the height of bearing piece is risen or is reduced, the bearing piece is used for the bearing cantilever. A device for cantilever pre-configuration is through setting up jacking device and bearing piece on the mounting bracket for jacking device can rise or reduce the position of bearing piece, thereby adjusts the position height of cantilever. The problem of the cantilever that prior art exists need rely on hoist device or platform truck balanced, and need rise or reduce the position height of flat cantilever according to the position of the part of waiting to install when installing other parts on the cantilever is solved.
Description
Technical Field
The utility model relates to the technical field of wrist arm pre-assembly, in particular to a device for wrist arm pre-assembly.
Background
In the running process of the high-speed rail, the high-speed rail needs to be driven by high-voltage electricity, so that an overhead contact system needs to be arranged along the length direction of the railway to supply energy. And overhead contact systems require the support posts and the cantilever arms to be fixed. The wrist arm is a member mounted on the upper portion of the support column for supporting the contact suspension and functioning to transmit load. The wrist is generally made of circular steel pipe, and the length of the wrist is related to the structural height of the contact suspension, the side limit of the support, the position of the support and the like. The cantilever is mostly prefabricated, and the top of pillar is installed again after accomplishing prefabrication.
In the prefabrication process of the wrist arm, intelligent manufacturing is mostly adopted. However, the cost of intelligent manufacturing is high, so that manual manufacturing is also adopted. During manual manufacturing, one end of the wrist arm is connected to the insulator, and the other end of the wrist arm is balanced by a trolley or a hoisting device. However, when prefabricating the wrist, the components such as the reinforcement, the label plate and the like are required to be installed on the wrist, so that the position and the height of the wrist are required to be adjusted, and the installation process is more convenient. However, this increases the cost of manpower and materials.
Disclosure of Invention
The utility model aims at: the problem that the cantilever in the prior art needs to depend on a lifting device or a trolley to be balanced, and the position height of the cantilever is required to be increased or decreased according to the position of a part to be installed when other parts on the cantilever are installed, and manpower and material resources are consumed is solved.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a device for cantilever pre-configuration, contains jacking device and bearing piece, jacking device with the bearing piece is all fixed in the mounting bracket, the mounting bracket is provided with the telescopic member, jacking device can drive the telescopic member extends or shortens and then makes the height of bearing piece is risen or is reduced, the bearing piece is used for the bearing cantilever.
The jacking device can be a hydraulic jacking device, an electric jacking device or a pneumatic jacking device. The size of the support is determined by the size of the wrist.
The jacking device and the bearing piece are arranged on the mounting frame, so that the stability of the whole device can be improved. When the jacking device works, the telescopic component is jacked or lowered, so that the position height of the supporting piece is raised or lowered, and the position height of the wrist arm is adjusted. Compared with the prior art, the cantilever crane can be balanced by the lifting device or the trolley in the preassembling process of the cantilever crane and the position height of the cantilever crane can be changed according to the requirement, the cantilever crane can be supported, the position height of the cantilever crane can be adjusted by the jacking device, the consumption of manpower and material resources is reduced, and the construction cost is saved.
As a preferable mode of the utility model, the telescopic member comprises a second sleeve and a first sleeve, the first sleeve is sleeved outside the second sleeve, and two ends of the jacking device are respectively connected with the first sleeve and the second sleeve.
The connection form of the second sleeve member comprises: the piston of the jacking device is connected with the second sleeve, and the base is connected with the first sleeve; the piston of the jacking device is connected with the first sleeve, and the base is connected with the second sleeve.
The telescopic component adopts the form of first sleeve pipe and second sleeve pipe, then jacking device guarantees as far as possible that the second sleeve pipe is vertical motion when stretching out or the first sleeve pipe of indentation when the during operation to keep the balance of cantilever as far as possible.
As a preferable scheme of the utility model, the base of the jacking device is connected with the first sleeve through a fixing component, the fixing component is a channel steel, and the base of the jacking device is connected with a web plate of the channel steel.
Because the bending resistance of the channel steel is superior, the base of the jacking device is connected with the web plate of the channel steel, so that the load of the jacking device during working can be resisted, the stability of the device is improved, and the service life of the device is prolonged.
As a preferred embodiment of the present utility model, the first sleeve is provided with a fastener for locking the second sleeve.
The specific form of the fastener is determined by the circumstances. The fastener can be a bolt or can be fixed by a pin hole. The fastener for fixing the second sleeve is arranged, so that the wrist arm can be balanced as much as possible, and the preassembly efficiency is improved.
As a preferable scheme of the utility model, two first sleeves and two second sleeves are respectively arranged, the two second sleeves are distributed at intervals along the direction perpendicular to the axis of the wrist arm, one second sleeve is respectively arranged in each of the two first sleeves, and the jacking device is arranged between the two first sleeves.
The axis connecting line of the two first sleeves is perpendicular to the axis of the wrist arm, and the second sleeves are arranged inside the two first sleeves. The jacking device is arranged between the two first sleeves, so that the stability of the device is improved.
As a preferred embodiment of the utility model, the height of the support is higher on both sides than on the middle.
The cross section of the bearing piece can be V-shaped, arc-shaped or inverted trapezoid with an opening at the upper end. Because the cross section of the wrist arm is circular, the wrist arm is prevented from rolling away from the supporting piece by adopting the supporting piece with high two sides and low middle, the position of the wrist arm is stabilized, and the preassembling precision of the wrist arm is improved.
As a preferable scheme of the utility model, the bearing piece is externally covered with the wear-proof piece.
The wear protection can be rubber or fiber cloth. The support piece is wrapped with the wear-resistant piece, so that the wear of the wrist arm can be avoided, and the service life of the wrist arm can be prolonged.
As a preferable scheme of the utility model, the mounting frame comprises a bottom frame, the bottom frame is a channel steel, and an anti-falling piece is arranged along the direction perpendicular to the axis of the channel steel.
The underframe and the fall-preventing piece can form a right triangle structure with a T-shaped cross section and an opening. The flat section is the section perpendicular to the first sleeve. The chassis is provided with the anti-falling piece, and compared with other shapes, the anti-falling device is more stable and can be prevented from falling to the ground as much as possible. The underframe is arranged to be a channel steel member, so that the bending resistance of the device is improved, and the service life of the device is prolonged.
As a preferable scheme of the utility model, the mounting frame further comprises a reinforcing pipe, and two ends of the reinforcing pipe are respectively connected with the base of the jacking device and the anti-falling part of the underframe.
The base and the anti-falling piece of the jacking device are connected to the two ends of the reinforcing pipe, so that the stability of the device is improved, collapse in the construction process is avoided, and the prefabrication efficiency is improved.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
a device for cantilever pre-configuration is through setting up jacking device and bearing piece on the mounting bracket for jacking device can rise or reduce the position of bearing piece, thereby adjusts the position height of cantilever. Compared with the prior art, the device can support the wrist arm by balancing the wrist arm through the lifting device or the trolley in the preassembling process of the wrist arm and changing the position height of the wrist arm according to the requirement, and the position height of the wrist arm is adjusted through the jacking device, so that the consumption of manpower and material resources is reduced, and the construction cost is saved. The problem of the cantilever that prior art exists need rely on hoist device or platform truck balanced, and need rise or reduce the position height of flat cantilever according to the position of the part of waiting to install when installing other parts on the cantilever is solved.
Drawings
FIG. 1 is a three-dimensional configuration diagram of an apparatus for arm pre-fitting in example 1;
FIG. 2 is a front view of an apparatus for arm pre-fitting in example 1;
fig. 3 is a side view of an apparatus for wrist arm preparation in example 1.
Icon: 1-underframe, 2-reinforcement pipe, 3-fastener, 4-first sleeve pipe, 5-second sleeve pipe, 6-fixed component, 7-connecting piece, 8-jack, 9-bearing piece, 10-fall prevention piece.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1-3, a device for pre-assembling a cantilever comprises a jacking device and a supporting member 9, wherein the jacking device and the supporting member 9 are both fixed on a mounting frame, the mounting frame is provided with a telescopic member, the jacking device can raise or lower the horizontal height of the supporting member 9 through the telescopic member, and the supporting member 9 is used for supporting the cantilever. In this embodiment, the jacking device is a jack 8. In this embodiment, the telescopic member comprises two groups, each group comprises a second sleeve 5 and a first sleeve 4, the first sleeve 4 is sleeved on the second sleeve 5, and two ends of the jacking device are respectively connected with the first sleeve 4 and the second sleeve 5. The telescopic members are in the form of the first sleeve 4 and the second sleeve 5, so that the jack 8 ensures as much as possible the vertical movement of the second sleeve 5 when extending or retracting the first sleeve 4 during operation, thereby maintaining the balance of the wrist as much as possible. The first sleeve 4 is positioned below the second sleeves 5, the base of the jack 8 is connected with the first sleeve 4 through the fixing member 6, and the pistons of the jack 8 are connected with the two second sleeves 5 through the connecting piece 7. The jack 8 is operated and the base of the jack 8 is not moved and the piston drives the connecting piece 7 to move so as to drive the second sleeve 5 to move. The fixing member 6 is a channel steel, and two ends of the channel steel are respectively connected to the two first sleeves 4. Two first bushings 4 are provided with a fastener 3 for fixing the position of the second bushing 5. In the embodiment, the bolts are screwed and fixed, so that the operation is convenient.
In this embodiment, the flat section of the chassis is T-shaped and is channel steel. The underframe 1 is arranged as a channel steel member, so that the bending resistance of the device is improved, and the service life of the device is prolonged. The channel steel at the wing plate is perpendicular to the length direction of the cantilever. The two first sleeves 4 are arranged on the channel steel at the wing plate along the axial direction and are respectively positioned at two sides of the channel steel at the web plate (namely the fall prevention piece 10), and the axial connecting line of the two first sleeves 4 is perpendicular to the axial line of the cantilever. The reinforcement pipe 2 is connected at both ends thereof with the fall preventing member 10 and the fixing member 6, respectively. The reinforcement pipe 2 is arranged along the length direction of the wrist, so that the device can be prevented from falling down as much as possible, and the prefabricated efficiency of the wrist is prevented from being influenced because the device falls down.
The support 9 is an arc-shaped member. Because the cross section of the wrist is circular, the wrist is prevented from rolling away from the bearing piece 9 by adopting the bearing piece 9 with high two sides and low middle, the position of the wrist is stabilized, and the preassembling precision of the wrist is improved. The support 9 is externally provided with wear protection elements (not shown in the figures) so as to avoid wearing the wrist and facilitate the increase of the service life of the wrist.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. The utility model provides a device for cantilever pre-configuration, its characterized in that contains jacking device and bearing piece (9), jacking device with bearing piece (9) are all fixed in the mounting bracket, the mounting bracket is provided with the telescopic member, jacking device can drive the telescopic member extends or shortens and then makes the height of bearing piece (9) rise or reduce, bearing piece (9) are used for bearing the cantilever.
2. Device for pre-fitting a wrist according to claim 1, characterized in that the telescopic member comprises a second sleeve (5) and a first sleeve (4), the first sleeve (4) being sheathed on the second sleeve (5), the jacking devices being connected at both ends to the first sleeve (4) and to the second sleeve (5), respectively.
3. Device for the pre-assembly of a cantilever according to claim 2, characterized in that the base of the jacking device is connected to the first sleeve (4) by means of a fixing member (6), the fixing member (6) being a channel steel, the base of the jacking device being connected to the web of the channel steel.
4. Device for the pre-fitting of a wrist according to claim 2, characterized in that the first sleeve (4) is provided with a fastener (3) for locking the second sleeve (5).
5. The device for pre-assembling the wrist according to claim 2, wherein the number of the first sleeves (4) and the number of the second sleeves (5) are two, the two second sleeves (5) are distributed at intervals along the direction perpendicular to the axis of the wrist, one second sleeve (5) is arranged in each of the two first sleeves (4), and the jacking device is arranged between the two first sleeves (4).
6. Device for the preparation of a wrist according to any one of claims 1-5, characterized in that the height of the support (9) is higher on both sides than in the middle.
7. Device for the pre-fitting of a wrist according to any one of claims 1 to 5, characterized in that the support (9) is externally coated with wear protection.
8. Device for the pre-assembly of a cantilever according to any one of claims 1 to 5, characterized in that the mounting comprises a chassis (1), the chassis (1) being a channel, and a fall-prevention element (10) being arranged in a direction perpendicular to the axis of the channel.
9. Device for the pre-assembly of a cantilever according to claim 8, characterized in that the mounting frame further comprises a stiffening tube (2), the two ends of the stiffening tube (2) being connected to the base of the jacking device and to the fall-preventing element (10) of the chassis (1), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322261846.8U CN220535471U (en) | 2023-08-22 | 2023-08-22 | Device for pre-configuring wrist arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322261846.8U CN220535471U (en) | 2023-08-22 | 2023-08-22 | Device for pre-configuring wrist arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220535471U true CN220535471U (en) | 2024-02-27 |
Family
ID=89976342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322261846.8U Active CN220535471U (en) | 2023-08-22 | 2023-08-22 | Device for pre-configuring wrist arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220535471U (en) |
-
2023
- 2023-08-22 CN CN202322261846.8U patent/CN220535471U/en active Active
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