CN221254603U - Tapping machine with adjustable rail beam - Google Patents
Tapping machine with adjustable rail beam Download PDFInfo
- Publication number
- CN221254603U CN221254603U CN202322819039.3U CN202322819039U CN221254603U CN 221254603 U CN221254603 U CN 221254603U CN 202322819039 U CN202322819039 U CN 202322819039U CN 221254603 U CN221254603 U CN 221254603U
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- rail beam
- hinged
- adjusting
- hanging
- rod
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000011435 rock Substances 0.000 claims description 7
- 210000004907 gland Anatomy 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses an adjustable rail beam tapping machine which comprises a rotating arm, an inclined base, a rail beam and a rotary oil cylinder, wherein the rail beam is connected with the rotating arm through a hanging adjusting mechanism, the rail beam is horizontally and rotatably arranged at an N point on the upper part of the hanging adjusting mechanism through a connecting plate, the lower part of the hanging adjusting mechanism is hinged at a P point on one end of the rotating arm, the other end of the hanging adjusting mechanism is hinged with the inclined base, one end of the rotary oil cylinder is hinged with the rotating arm, and the other end of the rotary oil cylinder is hinged with the fixed inclined base; a control connecting rod is arranged above the rotating arm, two ends of the control connecting rod are respectively hinged with the inclined base and the connecting plate, and the connecting plate is driven to drive the rail beam to horizontally rotate around the N point by adjusting the length of the control connecting rod, so that the positions of the rail beam and the iron notch are adjusted; in addition, the hanging adjusting mechanism is driven by the adjusting rod to vertically rotate around the P point, so that the installation angle of the equipment is adjusted. The utility model can not only aim at the iron notch by adjusting the rail beam, but also conveniently meet the adjustment of the installation angle alpha of equipment, ensure smooth tapping and improve the tapping efficiency.
Description
Technical Field
The utility model belongs to the technical field of blast furnace metallurgical equipment, and particularly relates to a rail beam adjustable tapping machine.
Background
The tapping machine is one of key equipment in the blast furnace ironmaking process, and has the main function of opening a tapping hole so that molten iron in a blast furnace can be smoothly discharged from a blast furnace outlet for subsequent smelting processes, and whether the tapping machine works stably or not directly affects the positive production of the blast furnace.
Wherein, when the tapping machine works, the rail beam is aligned with the tapping hole, and the tapping hole is smoothly opened, the structure of the current tapping machine is shown in figures 1 and 2, and the tapping machine mainly comprises a hanging frame A, a rotating arm 2, an inclined base 3, a rail beam 4 containing a trolley of the rock drill and a rotary oil cylinder 5; the hanging rack A is fixedly connected with the rail beam 4 and the rotating arm 2 through bolts and nuts respectively, the rotating arm 2 is hinged on the inclined base 3 through a bearing, two ends of the rotary oil cylinder 5 are respectively connected on the rotating arm 2 and the fixedly arranged inclined base 3 through a pin shaft, and the rotary oil cylinder 5 pushes the rotating arm 2 to drive the rail beam 4 to rotate, so that the rail beam 4 can carry out opening operation on an upper iron notch. However, in practical use, the following drawbacks exist:
Firstly, repeated opening and blocking operations for a long time can cause construction deviation of a foundation of equipment and deviation of the center position of an actual iron notch of a blast furnace, and a rotating arm and a rail beam in the existing iron notch opening machine are fixedly connected through a hanging frame, namely the rail beam is not adjustable to the iron notch position, so that the rail beam cannot be aligned to the iron notch;
Secondly, the welding angle of the rotating arm and the head angle pore plate is the equipment installation angle alpha, so that the welding and processing requirements are very high, and the processing cost is increased; if the installation angle alpha is improperly controlled, the track surfaces on the two sides are not in the same horizontal plane after the track beam is installed, and the equipment is used for a long time to deform the joint surfaces of the pore plate and the track beam, so that the track surfaces on the two sides are deflected, the trolley of the rock drill is not smooth to walk, and the opening efficiency is reduced.
In view of this, the present utility model has been made.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides the rail beam adjustable tapping machine, which solves the problem that the rail beam is not aligned with the tapping hole due to equipment foundation construction deviation and actual tapping hole position deviation through the cooperation of the hanging adjusting mechanism and the control connecting rod, solves the problem of equipment installation angle, realizes the aim that the rail beam can be accurately aligned with the tapping hole center when the tapping machine is in the working position, is convenient and smooth to open holes, and improves tapping efficiency.
The utility model aims at solving the problems by the following technical scheme:
The rail beam is arranged at the upper N point of a rotating shaft in the hanging adjusting mechanism through a connecting plate in the hanging adjusting mechanism and used for enabling the rail beam to horizontally rotate around the N point of the rotating shaft, the lower part of the hanging adjusting mechanism is hinged with one end part of the rotating arm at the P point through a first pin shaft and used for enabling the hanging adjusting mechanism to vertically rotate around the P point of the first pin shaft, the other end of the rotating arm is hinged with a front upright post of the inclined base, one end of the rotary oil cylinder is hinged at the position, close to the first pin shaft, of the rotating arm, the other end of the rotary oil cylinder is hinged with a rear upright post of the inclined base, and the inclined base is fixedly arranged on a base body;
The length of the control connecting rod is adjusted, and then the connecting plate is pulled or pushed to drive the rail beam to horizontally rotate around the N point of the rotating shaft, so that the rail beam can be used for adjusting the center position of an actual iron notch.
Further, the control connecting rod comprises connecting rod and first regulation pole, the one end of connecting rod is articulated with the connecting plate, and the other end is articulated with the one end of first regulation pole, the other end of first regulation pole is articulated with the rear portion stand of oblique base, just first regulation pole is located rocking arm and oblique base articulated pin joint top.
Further, the hanging adjusting mechanism further comprises a shell, the rotating shaft is rotatably arranged in the shell, the rotating shaft extends out of the top of the shell, the circumference of the rotating shaft is connected with a connecting plate through a key, and the connecting plate is connected with the rail beam through a fastener.
Further, the shell is connected with the rotating shaft through a first bearing and a second bearing, the first bearing and the second bearing are respectively positioned at the upper end and the lower end of the shell, the first bearing is fixed through a gland, and the second bearing is fixed through a flange.
Further, the hanging adjusting mechanism further comprises two groups of second adjusting rods, the second adjusting rods are symmetrically arranged on two sides of the shell, two ends of each group of second adjusting rods are respectively hinged to the middle of the shell and the upper portion of the rotating arm through second pin shafts, and the hanging adjusting mechanism is driven to drive and enable the rail beam 4 to vertically rotate around the P point of the first pin shaft through adjusting the length of the second adjusting rods and is used for adjusting an angle alpha required by installation of the tapping machine equipment.
Further, the first adjusting rod and the second adjusting rod are threaded adjusting rods and/or hydraulic adjusting rods.
Further, the screw thread regulation pole includes first threaded rod, second threaded rod and nut barrel, first threaded rod one end threaded connection is in nut barrel one end, second threaded rod one end threaded connection is in the nut barrel other end, just nut barrel is opposite with the screw thread of first threaded rod and second threaded rod connection to revolve.
Further, the hanging adjusting mechanism further comprises a sealing cover, and the sealing cover is fixedly connected with the end part of the rotating arm through a plurality of fasteners, so that a first pin shaft at the lower part of the hanging adjusting mechanism is positioned between the sealing cover and the rotating arm.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model provides a rail beam adjustable tapping machine, which mainly comprises a hanging adjusting mechanism, a rotating arm, an inclined base, a rail beam containing a trolley of a rock drill, a rotary oil cylinder and a control connecting rod; the rail beam is arranged at the upper N point of the rotating shaft in the hanging adjusting mechanism through a connecting plate, a control connecting rod capable of adjusting the length is arranged above the rotating arm and at one side of the rotating shaft in the circumferential direction, one end of the control connecting rod is hinged with a rear upright post of the inclined base, and the other end of the control connecting rod is hinged with the connecting plate; in addition, the lower part of the hanging adjusting mechanism is hinged with one end part of the rotating arm at the P point through a first pin shaft, and a second adjusting rod capable of adjusting the length is arranged in the middle of a shell of the hanging adjusting mechanism and the upper part of the rotating arm. Based on the arrangement, the tapping machine has at least the following three advantages compared with the prior art:
1) The connecting plate can be pulled or pushed to horizontally rotate around the N point of the rotating shaft by controlling the length of the connecting rod, and the rail beam is fixed on the connecting plate, so that the connecting plate drives the rail beam to jointly horizontally rotate around the N point of the rotating shaft, and the regulation of the rail beam to the actual center position of the iron notch can be accurately realized;
2) The inclined pore plate at the head of the rotating arm is removed, the weight of the rotating arm is reduced, and the blank and machining cost are reduced;
3) The length of the second adjusting rod is controlled to pull or push the whole hanging adjusting mechanism to vertically rotate around the point P of the first pin shaft, so that the angle alpha required by equipment installation is reached, the track surfaces on two sides of the track beam are kept at the same horizontal plane, smooth running of the trolley of the rock drill is ensured, and the opening efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate principles of the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic diagram of a front view of a prior art tapping machine;
FIG. 2 is a schematic top view of a prior art tapping machine;
FIG. 3 is a schematic diagram of the front view of the rail beam adjustable tapping machine of the present utility model;
FIG. 4 is a schematic top view of the rail beam adjustable tapping machine of the present utility model;
FIG. 5 is a schematic diagram of the connection structure of the hanging adjusting mechanism and other parts of the utility model;
FIG. 6 is a schematic view of the cross-sectional structure of A-A in FIG. 5.
Wherein: 1 is a hanging adjusting mechanism; 2 is a hanging adjusting mechanism; 3 is an inclined base; 4 is a rail beam; 5 is a rotary oil cylinder; 6 is a control connecting rod; 11 is a connecting plate; 12 is a rotating shaft; 13 is a shell; 14 is a first bearing; 15 is a second bearing; 16 is a gland; 17 is a flange; 18 is a second adjustment lever; 19 is a closure; 61 is a connecting rod; 62 is a first adjustment lever; a is a hanging frame.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of devices that are consistent with aspects of the utility model that are set forth in the following claims.
The present utility model will be described in further detail below with reference to the drawings and examples for better understanding of the technical solutions of the present utility model to those skilled in the art.
Referring to fig. 3 to 6, the rail beam adjustable tapping machine provided by the embodiment of the utility model mainly comprises a rotary arm 2 inclined base 3, a rail beam 4 containing a trolley of a rock drill and a rotary oil cylinder 5; the rail beam 4 is connected with the rotating arm 2 through a hanging adjusting mechanism 1, the rail beam 4 is arranged at the upper N point of a rotating shaft 12 in the hanging adjusting mechanism through a connecting plate 11 horizontally arranged in the hanging adjusting mechanism 1 and used for enabling the rail beam 4 to horizontally rotate around the N point of the rotating shaft 12, the lower part of the hanging adjusting mechanism 1 is hinged with one end of the rotating arm 2 at the P point through a first pin shaft and used for enabling the hanging adjusting mechanism 1 to vertically rotate around the P point of the first pin shaft, the other end of the rotating arm 2 is hinged with a front upright post of the inclined base 3, one end of a rotary oil cylinder 5 is hinged at the position, close to the first pin shaft, of the rotating arm 2, the other end of the rotary oil cylinder is hinged with a rear upright post of the inclined base 3, and the inclined base 3 is fixedly arranged on a base body. According to the arrangement, the connecting plate 11 can only be driven to horizontally rotate around the N point of the rotating shaft 12, namely the rail beam 4 arranged on the connecting plate 11 can be driven to horizontally rotate at the same angle, and further the regulation of the rail beam 4 to the actual center position of the iron notch can be realized; meanwhile, the hanging adjusting mechanism 1 vertically rotates around the P point of the first pin shaft, and the adjustment of the installation angle alpha of the equipment can be met.
Both the above two types of adjustment require driving and locking elements, for which the present utility model is provided with a control link 6 and a second adjusting lever 18, respectively, capable of adjusting the length, so as to achieve the following specific purposes: the connecting plate 11 is driven and locked by the control connecting rod 6 to horizontally rotate around the N point of the rotating shaft 12, and the hanging adjusting mechanism 1 is driven and locked by the control second adjusting rod 18 to vertically rotate around the P point of the first pin shaft. Therefore, the specific structural forms of the control link 6 and the second adjustment lever 18 of the present utility model are not particularly limited as long as the above object can be achieved, and for example, both can employ a screw adjustment lever and/or a hydraulic adjustment lever.
Preferably, the embodiment of the utility model adopts a threaded adjusting rod, and the structure of the threaded adjusting rod comprises a first threaded rod, a second threaded rod and a nut cylinder, wherein one end of the first threaded rod is in threaded connection with one end of the nut cylinder, one end of the second threaded rod is in threaded connection with the other end of the nut cylinder, and the threads of the nut cylinder, which are connected with the first threaded rod and the second threaded rod, are opposite in rotation direction. When in use, the corresponding control connecting rod 6 and the second adjusting rod 18 can be extended or retracted only by rotating the nut cylinder bodies in different directions, so that the operation is convenient.
Specifically, as shown in fig. 3 and 4, the control connecting rod 6 is arranged above the rotating arm 2 and is positioned at one side of the circumference of the rotating shaft 12, the control connecting rod 6 consists of a connecting rod 61 and a first adjusting rod 62, one end of the connecting rod 61 is hinged with the connecting plate 11 in an angle, the other end of the connecting rod 61 is hinged with one end of the first adjusting rod 62 in an angle, the other end of the first adjusting rod 62 is hinged with a rear upright post of the inclined base 3, and a hinge point at which the first adjusting rod 62 is hinged with the inclined base 3 is positioned above a hinge point at which the rotating arm 2 is hinged with the inclined base 3. It should be noted that, in the embodiment of the present utility model, the first adjusting rod 62 is the threaded adjusting rod. Through the arrangement, the length of the first adjusting rod 62 in the control connecting rod 6 is adjusted, and then the connecting plate 11 is pulled or pushed to drive the rail beam 4 to horizontally rotate around the N point of the rotating shaft 12, so that the rail beam 4 can be used for adjusting the center position of the actual iron notch.
As shown in fig. 5 and 6, the hanging adjusting mechanism 1 of the present utility model further includes a housing 13, a rotating shaft 12 is rotatably disposed in the housing 13, the rotating shaft 12 extends out of the top of the housing 13, and then the circumferential surface of the rotating shaft is connected with a connecting plate 11 through a key, and the connecting plate 11 is fixedly connected with the rail beam 4 through a fastener (for example, a bolt and a nut). Specifically, the casing 13 is connected with the rotating shaft 12 through a first bearing 14 and a second bearing 15, the first bearing 14 and the second bearing 15 are respectively located at the upper end and the lower end of the casing 13, the first bearing 14 is fixed through a gland 16, and the second bearing 15 is fixed through a flange 17.
The two groups of the second adjusting rods 18 are symmetrically arranged on two sides of the shell 13, and two ends of each group of the second adjusting rods 18 are respectively hinged to the middle part of the shell 13 and the upper part of the rotating arm 2 through a second pin shaft and a hinge seat, the second adjusting rods 18 are threaded adjusting rods convenient to adjust, and the hanging adjusting mechanism 1 is driven and vertically rotated around the center P point of the pin shaft by adjusting the length of the second adjusting rods 18 so as to meet the adjustment of the installation angle alpha of the tapping machine equipment.
The second pin in the middle part and the first pin in the lower part of the embodiment of the utility model are fixedly connected with the uniform shell 13, for example, by welding.
The hanging adjusting mechanism 1 of the utility model further comprises a sealing cover 19, wherein the sealing cover 19 is fixedly connected with the end part of the rotating arm 2 through a plurality of fasteners, so that a first pin shaft at the lower part of the hanging adjusting mechanism 1 is positioned between the sealing cover 19 and the rotating arm 2.
The rail beam adjustable tapping machine of the utility model has the following adjusting process:
(a) Rail beam to tap hole position adjustment: as shown in fig. 5, the rail beam 4 is integrally connected with a connecting plate 11 in the hanging adjusting mechanism through bolts and nuts, the connecting plate 11 is fixedly connected with the peripheral surface of the rotating shaft 12 through a key, the control connecting rod 6 is positioned on the peripheral direction of the rotating shaft 12, one end of the control connecting rod is hinged with the connecting plate 11 through a pin shaft and a joint bearing, the length of the control connecting rod 6 is adjusted, and the connecting plate 11 is driven to drive the rail beam 4 to rotate around the N point of the rotating shaft 12 by a certain angle, so that the purpose of adjusting the center position of an actual iron notch by the rail beam 4 when the iron notch opening machine is in the working position is achieved.
(B) Device mounting angle α adjustment: as shown in fig. 5, when the oblique-base tapping machine is installed, the installation position of the hanging adjusting mechanism 1 and the rotating arm 2 must have an installation angle alpha (shown in fig. 5) so that the rail beam 4 can keep the rail surfaces on both sides at the same horizontal plane. The utility model designs a structure for adjusting the installation angle alpha of equipment, and particularly, the hanging adjusting mechanism 1 can drive the rail beam 4 to vertically rotate around the P point of the first pin shaft by a certain angle through adjusting the length of the second adjusting rod 18 hinged at the middle part of the hanging adjusting mechanism shell 13 and the upper part of the rotating arm 2, so that the adjustment of the installation angle alpha of the equipment is satisfied, the rail surfaces at two sides of the rail beam 4 are kept at the same horizontal plane, the trolley of the rock drill is ensured to smoothly walk, and the opening efficiency is improved.
The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model.
It will be understood that the utility model is not limited to what has been described above and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims (8)
1. The rail beam adjustable tapping machine comprises a rotating arm (2), an inclined base (3), a rail beam (4) containing a trolley of the rock drill and a rotary oil cylinder (5), and is characterized in that the rail beam (4) is connected with the rotating arm (2) through a hanging adjusting mechanism (1), the rail beam (4) is arranged at an N point at the upper part of a rotating shaft (12) in the hanging adjusting mechanism (1) through a connecting plate (11) in the hanging adjusting mechanism (1), the rail beam (4) can horizontally rotate around the N point of the rotating shaft (12), the lower part of the hanging adjusting mechanism (1) is hinged with one end part of the rotating arm (2) at the P point through a first pin shaft, the other end of the hanging adjusting mechanism (1) can vertically rotate around the P point of the first pin shaft, the other end of the rotating arm (2) is hinged with a front upright post of the inclined base (3), one end of the rotary oil cylinder (5) is hinged with the rotating arm (2) near the first pin shaft, and the other end of the rotary oil cylinder is hinged with the rear upright post (3) at the inclined base (3) and is fixed on a base body;
The device comprises a rotating arm (2), a rotating shaft (12) and a control connecting rod (6), wherein the length of the control connecting rod (6) can be adjusted on one circumferential side of the rotating shaft (12), one end of the control connecting rod (6) is hinged with a rear upright post of an inclined base (3), the other end of the control connecting rod is hinged with a connecting plate (11), the length of the control connecting rod (6) is adjusted, and the connecting plate (11) is pulled or pushed to drive a rail beam (4) to horizontally rotate around an N point of the rotating shaft (12), so that the rail beam (4) can be adjusted to the center position of an actual iron notch.
2. Rail beam adjustable tapping machine according to claim 1, characterized in that the control link (6) consists of a connecting rod (61) and a first adjusting rod (62), one end of the connecting rod (61) is hinged with the connecting plate (11), the other end is hinged with one end of the first adjusting rod (62), the other end of the first adjusting rod (62) is hinged with the rear upright of the inclined base (3), and the hinge point of the first adjusting rod (62) hinged with the inclined base (3) is located above the hinge point of the swivel arm (2) hinged with the inclined base (3).
3. The rail beam adjustable tapping machine according to claim 2, wherein the hanging adjusting mechanism (1) further comprises a housing (13), the rotating shaft (12) is rotatably arranged in the housing (13), the rotating shaft (12) extends out of the top of the housing (13) and is connected with the connecting plate (11) through a key on the circumferential surface, and the connecting plate (11) is connected with the rail beam (4) through a fastener.
4. A rail beam adjustable tapping machine according to claim 3, characterized in that the housing (13) and the rotary shaft (12) are connected by a first bearing (14) and a second bearing (15), and the first bearing (14) and the second bearing (15) are located at the upper and lower ends of the housing (13), respectively, the first bearing (14) is fixed by a gland (16), and the second bearing (15) is fixed by a flange (17).
5. The rail beam adjustable tapping machine according to claim 3, wherein the hanging adjusting mechanism (1) further comprises two groups of second adjusting rods (18), the second adjusting rods (18) are symmetrically arranged on two sides of the shell (13), two ends of each group of second adjusting rods (18) are respectively hinged to the middle part of the shell (13) and the upper part of the rotating arm (2) through second pin shafts, and the rail beam (4) is driven to vertically rotate around the P point of the first pin shaft by adjusting the length of the second adjusting rods (18) to be used for adjusting an angle alpha required by installation of the tapping machine equipment.
6. The rail beam adjustable tapping machine as claimed in claim 5, characterized in that the first adjustment lever (62) and the second adjustment lever (18) are screw adjustment levers and/or hydraulic adjustment levers.
7. The rail beam adjustable tapping machine of claim 6, wherein the threaded adjustment rod comprises a first threaded rod, a second threaded rod and a nut cylinder, wherein one end of the first threaded rod is threaded into one end of the nut cylinder, one end of the second threaded rod is threaded into the other end of the nut cylinder, and the threads of the nut cylinder and the first threaded rod and the second threaded rod are connected in opposite directions.
8. A rail beam adjustable tapping machine according to claim 3, characterized in that the hanging adjustment mechanism (1) further comprises a cover (19), the cover (19) is fixedly connected with the end of the swivel arm (2) by a plurality of fasteners, so that the first pin shaft at the lower part of the hanging adjustment mechanism (1) is located between the cover (19) and the swivel arm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322819039.3U CN221254603U (en) | 2023-10-20 | 2023-10-20 | Tapping machine with adjustable rail beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322819039.3U CN221254603U (en) | 2023-10-20 | 2023-10-20 | Tapping machine with adjustable rail beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221254603U true CN221254603U (en) | 2024-07-02 |
Family
ID=91628977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322819039.3U Active CN221254603U (en) | 2023-10-20 | 2023-10-20 | Tapping machine with adjustable rail beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221254603U (en) |
-
2023
- 2023-10-20 CN CN202322819039.3U patent/CN221254603U/en active Active
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