Rotary lifting appliance special for turnout AT steel rail
By designing a special rotating spreader for turnout AT rails, using the design of bearing components and prototyping chucks, the problem of inconvenient rotation during forging AT rails is solved, and the automatic flip of the rails is realized, and the production efficiency and safety are improved.
Patent Information
- Application Number
- CN202421102312.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-20
AI Technical Summary
In the process of forging and pressing AT rails, the rotating spreader has a large friction and is inconvenient to flip, which affects production and processing efficiency.
A special rotating spreader for turnout AT rails is designed, including a lifting ring, bearing seat, bearing assembly and profiling chuck. Through the design of bearing assembly and profiling chuck, the rails are automatically flipped.
The suspension parts of large rail parts are realized synchronously rotated with the automatic loading arm of the forging equipment, completing the flip of the entire rail parts, improving the lifting efficiency and production efficiency, reducing labor intensity and labor costs, and avoiding safety hazards.
Smart Images
Figure CN222475885U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of turnout manufacturing, in particular to a special rotary hanger for turnout AT rails. Background Art
[0002] Turnouts are a particularly important connection equipment on the railway. They are mainly composed of switches, frogs, guardrails and connection parts. The main part is made of various lengths and types of rail parts. The forging of rail parts is the primary process of turnout point rail production. It is not only related to the production progress and production efficiency of the next process, but also plays a key role in controlling the quality level of the entire turnout. The forging of turnouts mainly forges AT rails into standard 60kg / m rails. Due to the long forged rail parts and the special working mode of the forging equipment, the forged rail parts need to be rotated during the forging process so that they can meet the requirements in all directions. The current hoisting equipment is mainly lifted by wire ropes or slings. The friction is large during the rotation and it is not easy to flip, which has a certain impact on production and processing. Therefore, there is an urgent need for a suitable hoisting equipment to meet the flipping of the rail forging process. Utility Model Content
[0003] In order to solve the defects of the above-mentioned technology, the utility model provides a special rotating hanger for turnout AT rails.
[0004] The technical solution adopted by the utility model to achieve the above technical effects is:
[0005] A special rotary hanger for turnout AT rails comprises a lifting ring, a bearing seat, a bearing assembly and a profiling chuck, wherein the bearing seat is assembled in the lifting ring, the bearing assembly is arranged in the bearing seat, the profiling chuck is fixed in the bearing seat, and its outer peripheral end surface is fixed to the movable inner bearing ring of the bearing assembly, and a profiling through hole imitating the profile of the AT rail is formed on the profiling chuck, and the AT rail to be forged is inserted into the profiling through hole.
[0006] Preferably, in the above-mentioned dedicated rotary hanger for turnout AT rails, an annular bearing cover is further provided on one side of the assembly end of the bearing seat, a cover hole is formed on the annular bearing cover, and the contoured through hole is located in the orthographic projection of the cover hole.
[0007] Preferably, in the above-mentioned special rotating hanger for turnout AT rails, the bearing seat has a three-level stepped circular ring through hole structure, wherein the inner diameter of the first-level stepped circular ring hole is large and the hole is deep, the inner diameters of the second-level stepped circular ring hole and the third-level stepped circular ring hole decrease successively and the hole depth is shallower, a first annular step surface is formed between the first-level stepped circular ring hole and the second-level stepped circular ring hole, a second annular step surface is formed between the second-level stepped circular ring hole and the third-level stepped circular ring hole, the bearing assembly and the contoured chuck are assembled in the first-level stepped circular ring hole, and the second annular step surface constitutes an anti-slip limit for the contoured chuck.
[0008] Preferably, in the above-mentioned dedicated rotary hanger for turnout AT rails, the contoured chuck is a cylindrical structure, and the contoured through hole is formed in the middle of the column.
[0009] Preferably, in the above-mentioned special rotating hanger for turnout AT rails, the radial outer circumferential cylindrical surface of the profiling chuck is formed with a circle of concave grooves at a position close to the assembly end side of the bearing seat, and the radial outer circumferential cylindrical surface of the profiling chuck is formed with a circle of raised outer edge portions at a position away from the assembly end side of the bearing seat, a bearing retaining ring for limiting the bearing assembly is fixed in the concave groove, and the outer edge portion is located on the second annular step surface.
[0010] Preferably, in the above-mentioned dedicated rotating hanger for turnout AT rails, the bearing assembly includes a first bearing and a second bearing arranged in parallel in the first-level stepped circular hole along the axial direction of the first-level stepped circular hole, and a bearing washer is provided between the first bearing and the second bearing.
[0011] Preferably, in the above-mentioned dedicated rotary hanger for turnout AT rails, the annular bearing cover is formed with a raised annular step at the outer edge of one end side facing the bearing seat, and the annular step abuts against the outer end surface of the bearing assembly.
[0012] Preferably, in the above-mentioned dedicated rotary hanger for turnout AT rails, the lifting ring comprises a ring portion and a lifting lug, and the ring portion is sleeved and fixed on the outer peripheral side of the bearing seat.
[0013] The beneficial effects of the utility model are as follows: the special rotating hanger for AT rails of the turnout of the utility model can realize the synchronous rotation of the suspension part of the large rail piece following the automatic loading arm of the forging equipment, complete the flipping of the entire rail piece, improve the lifting efficiency and production efficiency, reduce labor intensity and labor costs, and avoid the occurrence of safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional diagram of the utility model;
[0015] Figure 2 It is a side view of the utility model;
[0016] Figure 3 It is a cross-sectional view of the utility model;
[0017] Figure 4 It is a cross-sectional view of the bearing seat of the utility model;
[0018] Figure 5 It is a cross-sectional view of the annular bearing cover of the utility model;
[0019] Figure 6 It is a structural diagram of the contoured chuck of the utility model;
[0020] Figure 7 for Figure 3 A partial enlarged view of the area “A” in the middle;
[0021] Figure 8 It is a front view of the lifting ring of the utility model. DETAILED DESCRIPTION
[0022] In order to further understand the present invention, the present invention is further described below with reference to the accompanying drawings and specific embodiments:
[0023] In the description of this utility, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this utility. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0024] In the description of this utility, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility can be understood according to specific circumstances.
[0025] See also Figures 1 to 3 As shown in the figure, a special rotary hanger for turnout AT rails proposed in an embodiment of the utility model includes a lifting ring 1, a bearing seat 2, a bearing assembly 5 and a contoured chuck 3. Figure 3As shown, the bearing seat 2 is assembled in the lifting ring 1, the bearing assembly 5 is arranged in the bearing seat 2, and the contoured chuck 3 is fixed in the bearing seat 2, and its outer peripheral end surface is fixed to the movable inner bearing ring of the bearing assembly 5. Figure 1 As shown, a profiling through hole 31 imitating the profile of an AT rail is formed on the profiling chuck 3 , and the AT rail to be forged is inserted into the profiling through hole 31 . Since the raw materials of the turnout rails are relatively long, the rail pieces required for turnout processing are also of different lengths. Most of the rail pieces can be flipped over by the mechanical arm of the forging equipment during the forging process, but the ultra-long rail pieces are difficult to satisfy the requirement of flipping over in all positions due to the limited length of the mechanical arm. In view of the existing rail forging method, during the rail forging process, the special rotating hanger for the turnout AT rail of the utility model is put on the rail through the middle profiling through hole 31, and then fixed in the vertical direction by the lifting ring 1 to keep the rail at a suitable height. In this way, during the forging process, when the automated mechanical arm of the forging equipment flips the forging part end of the rail piece, the other end of the rail piece will flip over together with the profiling chuck 3 under the action of the bearing assembly 5, and the lifting ring 1 is always maintained in the vertical direction, thereby completing the synchronous rotation of the suspension part of the large rail piece following the automated loading arm of the forging equipment, thereby completing the flipping of the entire rail piece.
[0026] Further, in a preferred embodiment of the present invention, Figure 1 and Figure 3 As shown, an annular bearing cover 4 is also provided on one side of the assembly end of the bearing seat 2. The annular bearing cover 4 is used to fix the assembly end of the bearing seat 2 so that the bearing assembly 5 and the contoured chuck 3 are assembled in the bearing seat 2. For the convenience of description and understanding, the assembly end of the bearing seat 2 is Figure 3 The bearing assembly 5 and the profiled chuck 3 are assembled into the bearing seat 2 from the right side as shown. It should be understood that in the above description, the assembly end side of the bearing seat 2 is Figure 3 The right-hand direction shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, and does not constitute a limitation of the present invention. Figure 5 As shown, the annular bearing cap 4 is formed with a cover hole 41, which is convenient for the rail to pass through the cover hole 41, and the profiled through hole 31 is located in the orthographic projection of the cover hole 41, that is, the profiled through hole 31 is completely exposed in the cover hole 41, and the cover ring of the annular bearing cap 4 does not constitute a blocking restriction on the profiled through hole 31. Among them, the diameter of the cover hole 41 is smaller than the diameter of the profiled chuck 3, and the annular bearing cap 4 constitutes a limit block for the profiled chuck 3.
[0027] Further, in a preferred embodiment of the present invention, Figure 4As shown, the bearing seat 2 has a three-level stepped circular ring through hole structure, wherein the inner diameter of the first-level stepped circular ring hole 21 is large and the hole is deep, and the inner diameters of the second-level stepped circular ring hole 22 and the third-level stepped circular ring hole 23 decrease in sequence and the hole depths are shallow. Specifically, a first annular step surface 24 is formed between the first-level stepped circular ring hole 21 and the second-level stepped circular ring hole 22, and a second annular step surface 25 is formed between the second-level stepped circular ring hole 22 and the third-level stepped circular ring hole 23. Figure 3 and Figure 7 As shown, the bearing assembly 5 and the profiling chuck 3 are assembled in the first-stage stepped annular hole 21, and the second annular step surface 25 constitutes an anti-slip limit for the profiling chuck 3. The larger inner diameter and hole depth of the first-stage stepped annular hole 21 facilitate the stable assembly of the bearing assembly 5 and the profiling chuck 3, so that the profiling chuck 3 can provide stable load-bearing for the AT rail to be forged. Among them, as a preferred embodiment of the utility model, the profiling chuck 3 is a cylindrical structure, and its profiling through hole 31 is formed in the middle of the cylinder. The profiling through hole 31 matches and corresponds to the cross-sectional profile of the AT rail to be forged, and the size is slightly larger than the cross-sectional profile size of the AT rail to be forged, so that the AT rail to be forged can be inserted through the profiling through hole 31.
[0028] Further, in a preferred embodiment of the present invention, Figure 6 As shown, the radial outer circumferential cylindrical surface of the profiling chuck 3 is formed with a circle of concave grooves 32 at a position close to the assembly end of the bearing seat 2, and the radial outer circumferential cylindrical surface of the profiling chuck 3 is formed with a circle of raised outer edge portions 33 at a position away from the assembly end of the bearing seat 2. Figure 7 As shown, a bearing retaining ring 6 for limiting the bearing assembly 5 is fixed in the concave groove 32, and the outer edge 33 is located on the second annular step surface 25, that is, the second annular step surface 25 blocks the outer edge 33, thereby preventing the contoured chuck 3 from falling off and limiting the position.
[0029] Further, in a preferred embodiment of the present invention, Figure 7As shown, the bearing assembly 5 comprises a first bearing 51 and a second bearing 52 which are arranged in parallel in the primary stepped annular hole 21 along the axial direction of the primary stepped annular hole 21, wherein a bearing washer 53 is provided between the first bearing 51 and the second bearing 52. Specifically, in a preferred embodiment of the utility model, the outer peripheral wall of the outer bearing ring of the first bearing 51 and the second bearing 52 abuts against the hole wall of the primary stepped annular hole 21, the first annular step surface 24 blocks the corresponding side of the outer bearing ring of the first bearing 51, and the movable inner bearing ring of the first bearing 51 and the second bearing 52 abuts against the outer peripheral end surface of the profiling chuck 3 located between the concave groove 32 and the outer edge 33 thereof. On the assembly end side of the bearing seat 2, the cover ring part of the annular bearing cover 4 abuts against the corresponding side of the outer bearing ring of the second bearing 52 and the outer edge part of the profiling chuck 3, so that the bearing assembly 5 and the profiling chuck 3 can be stably assembled in the primary stepped annular hole 21.
[0030] Further, in a preferred embodiment of the present invention, Figure 6 As shown, the annular bearing cover 4 is formed with a raised annular step 42 at the outer edge of one end side facing the bearing seat 2, wherein the annular step 42 abuts against the outer end surface of the bearing assembly 5, specifically abuts against the corresponding side of the outer bearing ring of the second bearing 52. The outer edge of the annular bearing cover 4 is provided with a bolt through hole 43, and the bearing seat 2 is provided with a bolt hole 26 corresponding to the bolt through hole 43 at the outer edge of the assembly end side thereof, and the bolt 7 is fixed to the annular bearing cover 4 on the assembly end side of the bearing seat 2 through the bolt through hole 43 and the bolt hole 26. As shown in FIG. Figure 8 As shown, the lifting ring 1 includes a ring portion 11 and a lifting lug 12, wherein the ring portion 11 is fixedly sleeved on the outer peripheral side of the bearing seat 2. As a preferred embodiment of the utility model, the ring portion 11 and the lifting lug 12 are an integrally formed structure, and the lifting lug 12 is provided with a bolt pair 14 for fastening the ring portion 11 and a lifting hole 13 for fixing the lifting ring 1.
[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the specification only describe the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A special rotary hanger for turnout AT rails, characterized in that: The invention comprises a lifting ring (1), a bearing seat (2), a bearing assembly (5) and a profiling chuck (3), wherein the bearing seat (2) is assembled in the lifting ring (1), the bearing assembly (5) is arranged in the bearing seat (2), the profiling chuck (3) is fixed in the bearing seat (2), and its outer peripheral end surface is fixed to the movable inner bearing ring of the bearing assembly (5), and a profiling through hole (31) imitating the profile of an AT rail is formed on the profiling chuck (3), and the AT rail to be forged is inserted into the profiling through hole (31).
2. The special rotary hanger for turnout AT rail according to claim 1, characterized in that: An annular bearing cover (4) is also provided on one side of the assembly end of the bearing seat (2), a cover hole (41) is formed on the annular bearing cover (4), and the contoured through hole (31) is located in the orthographic projection of the cover hole (41).
3. The special rotary hanger for turnout AT rail according to claim 1, characterized in that: The bearing seat (2) is a three-level stepped circular ring through hole structure, wherein the inner diameter of the first-level stepped circular ring hole (21) is large and the hole is deep, and the inner diameters of the second-level stepped circular ring hole (22) and the third-level stepped circular ring hole (23) are successively reduced and the hole depths are shallower, a first annular step surface (24) is formed between the first-level stepped circular ring hole (21) and the second-level stepped circular ring hole (22), and a second annular step surface (25) is formed between the second-level stepped circular ring hole (22) and the third-level stepped circular ring hole (23), the bearing assembly (5) and the contoured chuck (3) are assembled in the first-level stepped circular ring hole (21), and the second annular step surface (25) constitutes an anti-slip limit for the contoured chuck (3).
4. The special rotary hanger for turnout AT rail according to claim 3, characterized in that: The profiling chuck (3) is a cylindrical structure, and the profiling through hole (31) is formed in the middle of the cylinder.
5. The special rotary hanger for turnout AT rail according to claim 4, characterized in that: The radial outer circumferential cylindrical surface of the profiling chuck (3) is formed with a circle of concave grooves (32) at a position close to the assembly end of the bearing seat (2), and the radial outer circumferential cylindrical surface of the profiling chuck (3) is formed with a circle of raised outer edge portions (33) at a position away from the assembly end of the bearing seat (2). A bearing retaining ring (6) for limiting the bearing assembly (5) is fixed in the concave groove (32), and the outer edge portion (33) is located on the second annular step surface (25).
6. The special rotary hanger for turnout AT rail according to claim 3, characterized in that: The bearing assembly (5) comprises a first bearing (51) and a second bearing (52) which are arranged in parallel in the axial direction of the primary stepped circular hole (21) and in the primary stepped circular hole (21), and a bearing washer (53) is provided between the first bearing (51) and the second bearing (52).
7. The special rotary hanger for turnout AT rail according to claim 2, characterized in that: The annular bearing cover (4) is formed with a raised annular step (42) at the outer edge of one end facing the bearing seat (2), and the annular step (42) abuts against the outer end surface of the bearing assembly (5).
8. The special rotary hanger for turnout AT rail according to claim 1, characterized in that: The lifting ring (1) comprises a ring portion (11) and a lifting ear (12); the ring portion (11) is sleeved and fixed on the outer peripheral side of the bearing seat (2).