A dismounting tool for an emergency door pulley axle

Abstract

The utility model discloses an accident door pulley wheel axle dismounting frock, including mount, push -and -pull seat, jack and adjusting column, the mount includes first side plate, second side plate, slot shape board and connecting rod, and both ends of slot shape board and connecting rod are all with first side plate, second side plate fixedly connected, and two connecting rods are located the upper two sides of slot shape board, and the middle part of first side plate is provided with the hole for avoiding, and still be provided with a plurality of fixed holes on first side plate in the outside of hole for avoiding, push -and -pull seat swing setting is on slot shape board, and two jacks are installed on push -and -pull seat respectively, and at least one adjusting column is installed on the telescopic end of both sides jack respectively on slot shape board in the position of both sides. The frock of the utility model can realize the dismounting and installation of accident door pulley wheel axle.

Description

Technical Field

[0001] This utility model relates to the field of maintenance tooling technology for hydropower plants, and in particular to a tooling for disassembling the pulley axle of an emergency door. Background Technology

[0002] Emergency doors utilize pulleys to facilitate easier opening and closing. The precise fit between the pulleys and the track reduces door sway, maintaining balance during opening and closing. Rolling friction reduces wear and noise, minimizing component damage and extending overall lifespan. To ensure proper opening and closing, the pulley axles need to be disassembled for inspection and maintenance. Since multiple pulleys are longitudinally arranged in the emergency door configuration, this application presents a fixture for disassembling and installing the pulley axles.

[0003] A search revealed Chinese patent document CN219213007U, published on June 20, 2023, which discloses a single-sided disassembly fixture for pins. The fixture includes a support sleeve and a pin connection device. A protruding bolt is fixed at the center of the pin connection device, passing through the center hole of the end plate of the support sleeve and connected to a screw nut via threads outside the hole. The entire assembly of the protruding bolt and the pin connection device is housed within the support sleeve. The diameter of the center hole in the end plate of the support sleeve is larger than the external thread of the protruding bolt but smaller than the outer diameter of the screw nut. Its advantages include: stable and reliable single-sided disassembly of various types of pins with high efficiency. During disassembly, the device remains connected to the pin, preventing the pin from falling or rolling and ensuring worker safety. Its disadvantage is that this fixture can only be used for disassembling pins and cannot be used for installing them. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the problems existing in the background art and provide a tooling for disassembling the pulley axle of an emergency door, which enables the disassembly and installation of the pulley axle of an emergency door.

[0005] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: A tooling for disassembling the pulley axle of an emergency door includes a fixed frame, a push-pull seat, jacks, and adjusting columns. The fixed frame includes a first side plate, a second side plate, a channel plate, and connecting rods. Both ends of the channel plate and the connecting rods are fixedly connected to the first side plate and the second side plate, respectively. The two connecting rods are located on the upper sides of the channel plate. An avoidance hole is provided in the middle of the first side plate. Multiple fixing holes are also provided on the first side plate outside the avoidance hole. The push-pull seat is movably mounted on the channel plate. Two jacks are respectively installed on the push-pull seat. At least one adjusting column is symmetrically installed on the channel plate at the telescopic ends of the two jacks. In use, the push-pull seat is used to connect to or abut against the axle.

[0006] The grooved plate includes a V-shaped section and transverse sections fixed to both sides of the V-shaped section, and the push-pull seat rests on the transverse sections on both sides.

[0007] Support members are installed on both sides of the top of the V-shaped segment, and the support members cooperate with the V-shaped segment to support the adjustment column.

[0008] The support component includes a support wheel and a support rod. The support wheel is rotatably mounted on one end of the support rod via a bearing. The other end of the support rod is provided with an external thread, and two nuts are screwed onto the external thread. After the support rod passes through the pre-drilled hole on the V-shaped section, the two nuts are respectively clamped on both sides of the V-shaped section.

[0009] The push-pull seat includes a plate body, with a protrusion at the middle of one end of the plate body. Connecting plates are fixed to the upper and lower sides of the protrusion, and traction holes are correspondingly provided on the connecting plates on the upper and lower sides. Placement seats are fixed to the two sides of the plate body located on the protrusion, and the placement seats are used to place jacks. A push plate is fixed to one end of the plate body opposite to the protrusion.

[0010] The placement seat includes a longitudinal plate and a placement plate. The longitudinal plate is fixedly connected to the plate body, and the placement plate is fixedly connected to the side of the longitudinal plate away from the plate body.

[0011] One end of the adjusting column is provided with a threaded hole, and the other end is provided with a screw. The first side plate is provided with a first screw-connecting hole at the position corresponding to the adjusting column, and the second side plate is provided with a second screw-connecting hole at the position corresponding to the adjusting column. When multiple adjusting columns are provided on each side, adjacent adjusting columns are fixed together by threaded holes and screws. When the wheel axle is removed, the screw of the first adjusting column is screwed and fixed with the first screw-connecting hole. When the wheel axle is installed, the screw of the first adjusting column is screwed and fixed with the second screw-connecting hole.

[0012] It also includes a support column, the upper end of which is provided with a connector, which is connected to the fixing frame, and the support column is supported on the lower side of the fixing frame.

[0013] The bottom of the support column is screwed with an adjustable foot.

[0014] At least one lifting lug is also installed on the connecting rod.

[0015] The features of this utility model using the above-mentioned technical solution are: The first side plate of this utility model is provided with a fixing hole. After the screw is inserted into the fixing hole, it is screwed into the threaded hole on the outside of the wheel axle on the pulley block to fix it, thereby fixing the first side plate to the pulley block. At this time, the wheel axle is located in the clearance hole, and the diameter of the clearance hole is larger than the diameter of the wheel axle. The groove plate is used to place the wheel axle and the push-pull seat. The jack is installed on the push-pull seat. By adjusting the direction of the push-pull seat, the piston rod of the jack can be extended to disassemble or install the wheel axle. When the piston rod of the jack faces the pulley block, it is used to disassemble the axle. During disassembly, the push-pull seat is connected and fixed to the axle. As the piston rod of the jack extends, the jack pushes the push-pull seat outward, thereby pulling the axle off the pulley block and onto the grooved plate. When the piston rod of the jack faces away from the pulley block, it is used to install the axle. During installation, the axle is placed on the grooved plate, and the push-pull seat abuts against the axle. As the piston rod of the jack extends, the jack pushes the push-pull seat inward, thereby pushing the axle off the grooved plate and installing it onto the pulley block. This fixture enables the disassembly and installation of the axle of the emergency door pulley. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 3 This is a top view of the structure of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the fixing frame in this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the push-pull seat in this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the adjusting column in this utility model.

[0023] Figure 7 This is a cross-sectional structural diagram of the adjusting column in this utility model.

[0024] Figure 8 This is a three-dimensional structural diagram of the support column in this utility model.

[0025] Figure 9 This is the front view of the present invention in use.

[0026] Figure 10This is a schematic diagram illustrating the disassembly of the wheel axle using this utility model.

[0027] Figure 11 This is a schematic diagram of how the wheel axle is installed using this utility model.

[0028] Figure label: Pulley system 1, wheel and axle 2; Fixed frame 10, first side plate 11, clearance hole 111, fixing hole 112, first screw hole 113, second side plate 12, second screw hole 121, channel plate 13, V-shaped section 131, transverse section 132, connecting rod 14, lifting ring seat 141, support member 15, support wheel 151, support rod 152; Push-pull seat 20, plate 21, extension 211, connecting plate 22, traction hole 221, longitudinal plate 23, placement plate 24, push plate 25; Jack 30; Adjusting column 40, threaded hole 41, screw 42; 50mm lugs; Support column 60, connector 61, elongated hole 611, adjustable foot 62. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0031] Example 1: See Figure 1 , 23. A tooling for disassembling the pulley axle of an emergency door, comprising a fixed frame 10, a push-pull seat 20, jacks 30, and adjusting columns 40. The fixed frame 10 includes a first side plate 11, a second side plate 12, a channel plate 13, and connecting rods 14. Both ends of the channel plate 13 and the connecting rods 14 are fixedly connected to the first side plate 11 and the second side plate 12, respectively. The two connecting rods 14 are located on the upper sides of the channel plate 13. An avoidance hole 111 is provided in the middle of the first side plate 11. Multiple fixing holes 112 are also provided on the first side plate 11 outside the avoidance hole 111. The push-pull seat 20 is movably mounted on the channel plate 13. Two jacks 30 are respectively mounted on the push-pull seat 20. At least one adjusting column 40 is symmetrically installed on the channel plate 13 at the telescopic ends of the two jacks 30. In use, the push-pull seat 20 is used to connect to or abut against the wheel axle 2.

[0032] The first side plate 11 has a fixing hole 112. A screw is inserted into the fixing hole 112 and then screwed into a threaded hole on the pulley block 1 located outside the axle 2, thus fixing the first side plate 11 to the pulley block 1. At this time, the axle 2 is located inside the clearance hole 111, the diameter of which is larger than the diameter of the axle 2. The grooved plate 13 is used to place the axle 2 and the push-pull seat 20. The jack 30 is mounted on the push-pull seat 20. By adjusting the direction of the push-pull seat 20, the piston rod of the jack 30 extends to disassemble or install the axle 2.

[0033] See Figure 1 , 10 When the piston rod of jack 30 faces the pulley block 1, it is used to disassemble the axle 2. During disassembly, the push-pull seat 20 is connected and fixed to the axle 2. As the piston rod of jack 30 extends, jack 30 pushes the push-pull seat 20 outward, thereby pulling the axle 2 off the pulley block 1 onto the grooved plate 13; see also Figure 11 When the piston rod of the jack 30 is facing away from the pulley block 1, it is used to install the axle 2. During installation, the axle 2 is placed on the channel plate 13, and the push-pull seat 20 abuts against the axle 2. As the piston rod of the jack 30 extends, the jack 30 pushes the push-pull seat 20 inward, thereby pushing the axle 2 off the channel plate 13 and installing it onto the pulley block 1. This fixture enables the disassembly and installation of the emergency door pulley axle.

[0034] In this embodiment, the jack 30 can be a manual jack or a hydraulic cylinder.

[0035] During the disassembly or installation of wheel axle 2, since the length of wheel axle 2 is greater than the stroke of the piston rod of jack 30, it is necessary to simultaneously replace the adjusting column 40 of different lengths, or increase the number of adjusting columns 40 on each side.

[0036] See Figure 4The grooved plate 13 includes a V-shaped section 131 and transverse sections 132 fixed to both sides of the V-shaped section 131. The push-pull seat 20 rests on the transverse sections 132 on both sides. The V-shaped section 131 is used to support the wheel axle 2.

[0037] Furthermore, to facilitate the positioning of the adjusting column 40, see [reference needed]. Figure 1 , 2 3. Support members 15 are installed on both sides of the top of the V-shaped section 131. The support members 15 cooperate with the V-shaped section 131 to support the adjusting column 40.

[0038] In this embodiment, multiple support members 15 are respectively provided on both sides of the V-shaped segment 131. The support member 15 includes a support wheel 151 and a support rod 152. The support wheel 151 is rotatably mounted on one end of the support rod 152 via a bearing. The other end of the support rod 152 is provided with an external thread, and two nuts are screwed onto the external thread. After the support rod 152 passes through a pre-drilled hole in the V-shaped segment 131, the two nuts are respectively clamped on both sides of the V-shaped segment 131. Figure 1 As shown, during use, the adjusting column 40 is supported on the inner wall of the support wheel 151 and the V-shaped section 131.

[0039] See Figure 5 The push-pull base 20 includes a plate 21. A protrusion 211 is provided at the middle of one end of the plate 21. Connecting plates 22 are welded to the upper and lower sides of the protrusion 211, respectively. Traction holes 221 are correspondingly provided on the upper and lower connecting plates 22. Placement seats are welded to both sides of the plate 21 located at the protrusion 211, and these placement seats are used to place a jack 30. A push plate 25 is welded to one end of the plate 21 opposite to the protrusion 211. The placement seats are used to place the jack 30. The connecting plates 22 are used to connect with a connecting plate welded and fixed to the end of the axle 2 when disassembling the axle 2. The connecting plate has holes, and the connecting plate is inserted between the upper and lower connecting plates 22. A pin passes through the traction hole 221 and the hole on the connecting plate to connect the connecting plate 22 to the connecting plate. The push plate 25 is used to push the axle 2 when installing it.

[0040] Specifically, in this embodiment, the placement base includes a longitudinal plate 23 and a placement plate 24. The longitudinal plate 23 is fixedly connected to the plate body 21, and the placement plate 24 is fixedly connected to the side of the longitudinal plate 23 away from the plate body 21. The jack 30 is placed on the placement plate 24, which has a V-shaped structure.

[0041] Example 2: Based on Example 1, see Figure 6 , 7One end of the adjusting column 40 is provided with a threaded hole 41, and the other end is provided with a screw 42. The first side plate 11 has a first screw-in hole 113 at the position corresponding to the adjusting column 40, and the second side plate 12 has a second screw-in hole 121 at the position corresponding to the adjusting column 40. When multiple adjusting columns 40 are provided on each side, adjacent adjusting columns 40 are fixed together by connecting the threaded hole 41 and the screw 42. When the wheel axle 2 is removed, see... Figure 9 , 10 The screw 42 of the first adjusting column 40 is screwed and fixed to the first screw hole 113; when installing the wheel axle 2, see Figure 11 The screw 42 of the first adjusting column 40 is screwed and fixed to the second screw hole 121. Through the above structure, the length of the adjusting column 40 can be adjusted.

[0042] Example 3: Based on Embodiment 1 or Embodiment 2, this utility model further includes a support column 60, with a connector 61 at its upper end. The connector 61 is connected to the fixing frame 10, and the support column 60 is supported on the lower side of the fixing frame 10. The support column 60 supports one cantilevered end of the fixing frame 10.

[0043] In this embodiment, see Figure 8 A connector 61 is welded to the top of the support column 60. The connector 61 has a V-shaped structure and is supported at the bottom of the V-shaped section 131. Furthermore, the connector 61 is provided with an elongated hole 611, and the V-shaped section 131 has a corresponding through hole on the side near the second side plate 12. The V-shaped section 131 and the connector 61 are detachably connected by bolts.

[0044] Further, see Figure 2 An adjustable foot 62 is screwed onto the bottom of the support column 60, thereby allowing the height of the support column 60 to be adjusted. Specifically, the adjustable foot 62 is a pre-made product, and the screw at the top of the adjustable foot 62 is threaded into the support column 60. By rotating the adjustable foot 62, the adjustable foot 62 can support the ground or a support object.

[0045] See Figure 1 At least one lifting lug 50 is also installed on the connecting rod 14 for lifting the device.

[0046] Specifically, see Figure 4 Each connecting rod 14 has two lifting eye seats 141 welded on it, and the screw at the lower end of the lifting lug 50 is threadedly engaged with the lifting eye seat 141 for fixation.

[0047] The working principle or working process of this utility model: See Figure 9 , 10When disassembling axle 2, first weld a connecting plate to one end of axle 2 in pulley block 1. Then, screw the device through the fixing hole 112 on the first side plate 11 and the threaded hole on pulley block 1 to fix it. At this time, axle 2 is located in the clearance hole 111. Then, insert the connecting plate between the upper and lower connecting plates 22, and insert the pin into the traction hole 221 and the hole on the connecting plate to connect the connecting plate 22 to the connecting plate. Screw the screw 42 of the first adjusting column 40 to the first screw hole 113 to fix it. Then, place the jack 30 on the placement plate 24, with the piston rod of the jack 30 facing the pulley block 1 side. The piston rod of the jack 30 corresponds to the adjusting column 40, and the piston rod of the jack 30 abuts against the adjusting column 40. Operate the piston rod of the jack 30 to extend, and the jack 30 pushes the push-pull seat 20 outward, thereby pulling axle 2 off the pulley block 1 onto the groove plate 13. During the removal of wheel axle 2, an adjusting column 40 of corresponding length may be added as needed, such as... Figure 10 As shown.

[0048] See Figure 11 When installing the new axle 2, first place the axle 2 on the grooved plate 13, aligning the center of the axle 2 with the corresponding hole on the pulley assembly 1. After positioning the pulley, place the push plate 25 of the push-pull seat 20 against the outer end of the axle 2. Then, screw the screw 42 of the first adjusting column 40 into the second screw hole 121 and fix it. Place the jack 30 on the placement plate 24, with the piston rod of the jack 30 facing away from the pulley assembly 1. After positioning the pulley, extend the piston rod of the jack 30, and push the push-pull seat 20 inward, thereby pushing the axle 2 from the grooved plate 13 into the corresponding hole of the pulley assembly 1. During the installation of the axle 2, it is also necessary to add an adjusting column 40 of corresponding length, such as... Figure 11 As shown.

[0049] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Any modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A tooling for disassembling the pulley axle of an emergency door, characterized in that: The system includes a fixed frame (10), a push-pull seat (20), a jack (30), and an adjusting column (40). The fixed frame (10) includes a first side plate (11), a second side plate (12), a channel plate (13), and connecting rods (14). Both ends of the channel plate (13) and the connecting rods (14) are fixedly connected to the first side plate (11) and the second side plate (12), respectively. The two connecting rods (14) are located on both sides above the channel plate (13). The middle of the first side plate (11) is provided with a buffer. The first side plate (11) is provided with multiple fixing holes (112) located outside the clearance hole (111). The push-pull seat (20) is movably mounted on the channel plate (13). Two jacks (30) are respectively mounted on the push-pull seat (20). At least one adjusting column (40) is symmetrically installed on the channel plate (13) at the telescopic ends of the two jacks (30). When in use, the push-pull seat (20) is used to connect with or abut against the wheel axle (2).

2. The emergency door pulley axle disassembly fixture according to claim 1, characterized in that: The groove plate (13) includes a V-shaped section (131) and transverse sections (132) fixed to both sides of the V-shaped section (131), and the push-pull seat (20) rests on the transverse sections (132) on both sides.

3. The emergency door pulley axle disassembly fixture according to claim 2, characterized in that: Support members (15) are installed on both sides of the top of the V-shaped segment (131), and the support members (15) cooperate with the V-shaped segment (131) to support the adjusting column (40).

4. The emergency door pulley axle disassembly fixture according to claim 3, characterized in that: The support member (15) includes a support wheel (151) and a support rod (152). The support wheel (151) is rotatably mounted on one end of the support rod (152) via a bearing. The other end of the support rod (152) is provided with an external thread, and two nuts are screwed onto the external thread. After the support rod (152) passes through the pre-drilled hole on the V-shaped section (131), the two nuts are respectively clamped on both sides of the V-shaped section (131).

5. The emergency door pulley axle disassembly fixture according to claim 1, characterized in that: The push-pull seat (20) includes a plate (21), with a protrusion (211) at the middle of one end of the plate (21). Connecting plates (22) are fixed to the upper and lower sides of the protrusion (211), and traction holes (221) are provided on the connecting plates (22) on the upper and lower sides respectively. Placement seats are fixed to the two sides of the plate (21) located on the protrusion (211), and the placement seats are used to place the jack (30). A push plate (25) is fixed to one end of the plate (21) opposite to the protrusion (211).

6. The emergency door pulley axle disassembly fixture according to claim 5, characterized in that: The placement seat includes a longitudinal plate (23) and a placement plate (24). The longitudinal plate (23) is fixedly connected to the plate body (21), and the placement plate (24) is fixedly connected to the side of the longitudinal plate (23) away from the plate body (21).

7. The emergency door pulley axle disassembly fixture according to claim 1, characterized in that: One end of the adjusting column (40) is provided with a threaded hole (41), and the other end is provided with a screw (42). The first side plate (11) is provided with a first screw hole (113) at the position corresponding to the adjusting column (40), and the second side plate (12) is provided with a second screw hole (121) at the position corresponding to the adjusting column (40). When there are multiple adjusting columns (40) on each side, adjacent adjusting columns (40) are fixed together by threaded holes (41) and screws (42). When the wheel axle (2) is removed, the screw (42) of the first adjusting column (40) is screwed and fixed with the first screw hole (113). When the wheel axle (2) is installed, the screw (42) of the first adjusting column (40) is screwed and fixed with the second screw hole (121).

8. The emergency door pulley axle disassembly fixture according to claim 1, characterized in that: It also includes a support column (60), the upper end of which is provided with a connector (61), the connector (61) is connected to the fixing frame (10), and the support column (60) is supported on the lower side of the fixing frame (10).

9. The emergency door pulley axle disassembly fixture according to claim 8, characterized in that: The bottom of the support column (60) is screwed with an adjustable foot (62).

10. The emergency door pulley axle disassembly fixture according to claim 1, characterized in that: At least one lug (50) is also installed on the connecting rod (14).

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