Railway turnout eccentric sleeve replacing device

Abstract

The utility model provides a railway turnout eccentric sleeve replacing device. The railway turnout eccentric sleeve replacing device comprises a rod body, an expansion core, a wrench piece, a sliding sleeve piece, a clamping jaw assembly and a handle assembly. The expansion core is fixed to one end of the rod body, and the handle assembly is fixed to the other end of the rod body. The wrench piece is detachably installed on the rod body and moves in the axial direction of the rod body to drive the clamping jaw assembly to be close to or away from the expansion core. The clamping jaw assembly and the expansion core are matched to be connected with or separated from the inner wall of the eccentric sleeve. The sliding sleeve piece is arranged between the handle assembly and the wrench piece, the rod body allows the sliding sleeve piece to slide in the axial direction of the rod body, and the handle assembly does not allow the sliding sleeve piece to pass through. By adopting various structures such as the expansion core, the sliding sleeve piece and the clamping jaw structure, the eccentric sleeve can be simply and quickly replaced, and the eccentric sleeve is compact in structure, small in occupied space and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway turnout eccentric sleeve retrieval and maintenance technical field, specifically, relate to a railway turnout eccentric sleeve retrieval device. BACKGROUND

[0002] When the track gauge of high-speed railway turnout is adjusted, the eccentric sleeve is embedded in the iron pad hole and the rail slot is provided with a track gauge block structure to realize the adjustment. After a period of operation, the eccentric sleeve needs to be replaced for track gauge adjustment. If the eccentric sleeve cannot be removed, the maintenance work cannot be carried out normally.

[0003] The existing patent document with the publication number CN213740376U discloses a turnout sleeper eccentric sleeve extraction device, which comprises an extraction rod and a driving mechanism. The extraction rod extends into the eccentric sleeve and can hold the bottom of the eccentric sleeve. The driving mechanism is used to drive the upward movement of the extraction rod to pull out the eccentric sleeve. The extraction rod and the driving mechanism that drives the upward movement of the extraction rod are provided. The bottom of the eccentric sleeve is held by the extraction rod, and the eccentric sleeve is pulled out under the driving of the driving mechanism.

[0004] The retrieval of the eccentric sleeve at the railway turnout has always been a difficult problem for the maintenance personnel. The existing eccentric sleeve retrieval device includes a driving mechanism, which is large in size and inconvenient to carry. Moreover, the operation steps are still relatively complicated during use, and the operation needs to be further optimized. UTILITY MODEL CONTENT

[0005] In view of the defects in the prior art, the utility model aims to provide a railway turnout eccentric sleeve retrieval device.

[0006] According to the railway turnout eccentric sleeve retrieval device provided by the utility model, a rod body, a swelling core, a wrench part, a sliding sleeve part, a jaw assembly and a handle assembly are included.

[0007] The swelling core is fixed at one end of the rod body, and the handle assembly is fixed at the other end of the rod body.

[0008] The wrench part is detachably installed on the rod body, and the wrench part moves axially along the rod body to drive the jaw assembly to approach or move away from the swelling core.

[0009] The jaw assembly and the swelling core cooperate with the inner wall of the eccentric sleeve to connect or separate.

[0010] The sliding sleeve part is arranged between the handle assembly and the wrench part. The rod body allows the sliding sleeve part to slide along the axial direction of the rod body, and the handle assembly does not allow the sliding sleeve part to pass through.

[0011] Preferably, the rod body comprises a screw rod, and the wrench part comprises a wrench sleeve, which is threadedly matched with the screw rod.

[0012] Preferably, the expanding core is fixed to one end of the screw rod by a screw rod end head thread.

[0013] The diameter of the expanding core gradually increases in a direction away from the wrench.

[0014] Preferably, the claw assembly comprises a claw, a spring ring and a claw mounting frame, the claw mounting frame is sleeved on the rod body, the claw mounting frame is connected to the wrench, the claw is rotatably mounted on the claw mounting frame, and the spring ring is sleeved on the claw.

[0015] Preferably, the claw comprises a plurality of claws, and the plurality of claws are uniformly mounted on the claw mounting frame.

[0016] Preferably, the claw is riveted to the claw mounting frame by a pin shaft.

[0017] Preferably, the handle assembly comprises a handle rod and a handle sleeve, the handle rod is in interference fit with the handle sleeve, and the connection between the handle rod and the handle sleeve comprises a welded connection.

[0018] Preferably, the handle sleeve does not allow the sliding sleeve assembly to pass through.

[0019] Preferably, the sliding sleeve assembly is in clearance fit with the rod body, and the axis of the sliding sleeve assembly coincides with the axis of the rod body.

[0020] Preferably, the end of the wrench close to the claw assembly comprises two oppositely arranged grooves, and the center lines of the grooves coincide with the end face of the claw mounting frame.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] 1. The utility model discloses a plurality of structures such as an expanding core (expanding principle), a sliding sleeve assembly (sliding hammer principle) and a claw structure, which can quickly and simply replace an eccentric sleeve, are compact in structure, small in occupied volume and convenient to use.

[0023] 2. The utility model discloses a modular assembly unit assembled by a spring ring, a claw and a pin shaft, which can clamp the eccentric sleeve and is beneficial to firmly grasping the eccentric sleeve in the form of the claw.

[0024] 3. The sliding sleeve assembly is in clearance fit with the rod body, is axially mounted on the rod body, can quickly move up and down along the axial direction of the rod body, forms axial free movement, provides gravitational acceleration, and makes the upward force of the whole railway turnout eccentric sleeve replacement device complete the replacement work.

[0025] 4. The utility model discloses a wrench socket and screw rod thread cooperation, and the wrench socket can be finely moved on the screw rod, in the use process, manual rotation wrench socket drives the claw assembly to move, and it is favorable for the end face of claw assembly to be tightly matched with eccentric sleeve, realizes that eccentric sleeve is positioned in the end face of claw assembly. BRIEF DESCRIPTION OF DRAWINGS

[0026] Other features, objects, and advantages of the utility model will become more apparent from the following detailed description of non-limiting embodiments, with reference to the drawings:

[0027] Figure 1 Mainly embodies the cross section structure schematic diagram of railway turnout eccentric sleeve exchange device;

[0028] Figure 2 Mainly embodies the side structure schematic diagram of railway turnout eccentric sleeve exchange device;

[0029] Figure 3 Mainly embodies the cross section structure schematic diagram of claw assembly;

[0030] Figure 4 Mainly embodies the side structure schematic diagram of claw assembly;

[0031] Figure 5 Mainly embodies Figure 4 The cross section of claw assembly in E-E direction;

[0032] Figure 6 Mainly embodies Figure 4 The cross section of claw assembly in F-F direction;

[0033] Figure 7 Mainly embodies the cross section structure schematic diagram of handle assembly;

[0034] Figure 8 Mainly embodies the side structure schematic diagram of handle assembly.

[0035] In the drawings:

[0036] Handle assembly 100 Claw assembly 300

[0037] Screw rod 101 Claw mounting frame 303

[0038] Rising core 102 Claw 304

[0039] Handle sleeve 106 Pin shaft 309

[0040] Handle rod 107 Spring ring 310

[0041] Wrench socket 205 Slide sleeve kit 908 DETAILED DESCRIPTION

[0042] The utility model will be explained in detail below in combination with specific embodiments. The following embodiments will help the person skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that, for those skilled in the art, without departing from the concept of the utility model, a number of changes and improvements can be made. These all belong to the protection scope of the utility model.

[0043] As Figure 1 And Figure 2 The utility model discloses a railway turnout eccentric sleeve exchange device, including the rod body, the core 102 that rises, the wrench piece, the sliding sleeve 908, the jaw subassembly 300 and handle subassembly 100. The core 102 that rises is fixed at one end of the rod body, and handle subassembly 100 is fixed at the other end of the rod body. The wrench piece is detachably installed on the rod body, and the wrench piece moves along the axial direction of the rod body to drive the jaw subassembly 300 to approach or move away from the core 102 that rises. The jaw subassembly 300 and the core 102 that rise are connected or separated with the inner wall of eccentric sleeve. The sliding sleeve 908 is arranged between the handle subassembly 100 and the wrench piece, the rod body allows the sliding sleeve 908 to slide along the axial direction of the rod body, and the handle subassembly 100 does not allow the sliding sleeve 908 to pass through.

[0044] The railway turnout eccentric sleeve exchange device of the utility model adopts the core 102 that rises of diameter change, and the jaw subassembly 300 is expanded under the action of the core 102 that rises, so that the jaw subassembly 300 can be clamped eccentric sleeve, the quick sliding of the sliding sleeve 908 forms the force of upward acceleration, and acts on the whole railway turnout eccentric sleeve exchange device, reaches the purpose of eccentric sleeve extraction. The utility model combines the core 102 that rises (tensioning principle), the sliding sleeve 908 (slide hammer principle) and jaw subassembly and various structures, can simply and quickly exchange eccentric sleeve, and the structure is compact, occupies small, and is convenient to use.

[0045] Specifically, the sliding sleeve 908 is gap-fitted with the rod body, the axis of the sliding sleeve 908 coincides with the axis of the rod body, and the sliding sleeve 908 is axially installed on the rod body. The sliding sleeve 908 is axially installed on the rod body, the rod body limits the transverse movement of the sliding sleeve 908, the sliding sleeve 908 is gap-fitted with the rod body, and the sliding sleeve 908 can quickly move up and down along the axial direction of the rod body. The sliding sleeve is assembled on the rod, forms axial free movement, provides gravitational acceleration, so that the upward force of the whole railway turnout eccentric sleeve exchange device completes the exchange work.

[0046] Specifically, as Figures 3 to 6As shown, the pawl assembly 300 includes pawls 304, spring rings 310, and a pawl mounting frame 303, the pawl mounting frame 303 is sleeved on the rod body, the pawl mounting frame 303 is connected to the wrench, the pawls 304 are rotatably mounted on the pawl mounting frame 303, and the spring rings 310 are sleeved on the pawls 304. The pawls 304 include a plurality of, the plurality of pawls 304 are uniformly mounted on the pawl mounting frame 303. A feasible implementation is that the pawls 304 include four, the four pawls 304 are assembled on the pawl mounting frame 303 in equal division, and the spring rings 310 are assembled on the four pawls 304, so that the pawls 304 keep the same circularity, preferably, the pawls 304 are riveted on the pawl mounting frame 303 by using the pin shaft 309, and the pawl assembly 300 is assembled into a modular assembly unit through the pawls 304, the spring rings 310 and the pin shaft 309, which is convenient for installation and is also conducive to keeping the pawls 304 in the same circularity. The pawl assembly 300 is installed on the rod body and slides along the axial direction of the rod body, one end of the rod body provided with the expansion core extends into the central axis position of the eccentric sleeve, and the pawls 304 keeping the same circularity are unfolded at the same angle in the eccentric sleeve, so that the eccentric sleeve does not deviate during extraction, and the extraction is facilitated.

[0047] Specifically, the rod body includes a screw rod 101, the wrench includes a wrench screw sleeve 205, the wrench screw sleeve 205 is threadedly matched with the screw rod 101, the wrench screw sleeve 205 is installed on the screw rod 101, the expansion core 102 is threadedly fixed at one end of the screw rod 101 through the end head of the screw rod 101 and needs to be fastened by using thread glue, and the diameter of the expansion core 102 gradually increases in the direction away from the wrench. When the wrench drives the pawl assembly 300 to move close to the expansion core 102 along the axial direction of the rod body, the expansion core expands the pawls 304, the pawls 304 are connected with the inner wall of the eccentric sleeve, and the pawls 304 grab the inner wall of the eccentric sleeve; when the wrench drives the pawl assembly 300 to move away from the expansion core 102 along the axial direction of the rod body, the pawls 304 recover under the action of the spring rings 310, and the pawls 304 are separated from the inner wall of the eccentric sleeve.

[0048] The rod body is preferably the screw rod 101, the wrench is preferably the wrench screw sleeve 205, the wrench screw sleeve 205 is threadedly matched with the screw rod 101, and the threaded matching connection mode enables the wrench screw sleeve 205 to finely move on the screw rod 101. During use, manual rotation of the wrench screw sleeve 205 drives the pawl assembly 300 to move, and when the end surface of the pawl assembly 300 needs to be tightly matched with the eccentric sleeve, the threaded connection is conducive to positioning the eccentric sleeve on the end surface of the pawl assembly 300.

[0049] In order to more conveniently realize the end face of the jaw mounting frame 303 of the jaw assembly 300 and the eccentric sleeve, the end of the wrench close to the jaw assembly 300 preferably comprises two oppositely arranged grooves, the center lines of the grooves coincide with the line on which the end face of the jaw mounting frame 303 lies. When the end face of the jaw mounting frame 303 is tightly fitted to the eccentric sleeve, the two oppositely arranged grooves on the wrench can accommodate the part of the eccentric sleeve that is tightly fitted to the end face of the jaw mounting frame 303, so that the eccentric sleeve is more stably tightly fitted to the jaw mounting frame 303. At the same time, when the force for taking out the part of the eccentric sleeve is greater than 40 Kg, the lever principle is used, and the crowbar force is applied to the grooves on both sides of the wrench, so that the eccentric sleeve is effectively taken out.

[0050] Specifically, as shown in Figure 7 and Figure 8 The handle assembly 100 comprises a handle rod 107 and a handle sleeve 106, the handle rod 107 is in interference fit with the handle sleeve 106, the connection between the handle rod 107 and the handle sleeve 106 comprises a welded connection, and the handle sleeve 106 does not allow the sleeve assembly 908 to pass. A feasible implementation manner is that the handle assembly 100 is fastened on the screw rod 101 by a standard part pin, the handle rod 107 is in interference fit with the handle sleeve 106, and the connection between the handle rod 107 and the handle sleeve 106 is firmly welded by gas shield welding. The handle rod 107 and the handle sleeve 106 are fixed at the bottom of the screw rod 101, which provides convenience for the use of the whole railway turnout eccentric sleeve replacement device, the handle sleeve 106 is preferably installed on the screw rod 101, the handle rod 107 is vertically connected to the bottom end of the screw rod 101, the handle rod 107 is also vertically connected to the handle sleeve 106, and the handle sleeve 106 is installed at the bottom of the screw rod 101, which limits the further downward sliding of the sleeve assembly 908 without being separated from the screw rod 101.

[0051] The jaw 304 of the railway turnout eccentric sleeve replacement device is assembled on the jaw mounting frame 303, and is assembled into a modular assembly unit by the spring ring 310 and the pin shaft 309 to firmly grasp the eccentric sleeve in the form of the jaw 304; the wrench sleeve 205 is installed on the screw rod 101 and connected to the jaw assembly 300, the wrench sleeve 205 is manually rotated to drive the jaw assembly 300 to move in the direction in which the diameter of the spring core 102 increases, the spring core 102 is threadedly connected to the top of the screw rod 101, the spring core 102 acts on the inner side of the jaw 304, and the jaw 304 expands outward to reach a state of being fixed and firmly grasped with the eccentric sleeve; the sleeve assembly 908 is assembled on the screw rod 101 to form axial free movement, and provides gravity acceleration so that the upward force of the whole railway turnout eccentric sleeve replacement device completes the replacement work.

[0052] When the railway maintenance personnel are repairing the railway turnout area, and find that the eccentric sleeve needs to be taken out for replacement or other maintenance;

[0053] 1, the railway turnout eccentric sleeve replacement device is put into the eccentric sleeve, and it is confirmed whether the position of the eccentric sleeve is in place; the normal condition of the in-place position is that the claw mounting frame 303 contacts the end surface of the eccentric sleeve; specifically, the eccentric sleeve and the end surface of the claw mounting frame 303 are in a close-fitting state;

[0054] 2, the handle assembly 100 is moved upward through the spiral tightening of the wrench sleeve 205, the expanding core 102 acts on the inside of the claw 304, the claw 304 is expanded outward, and the railway turnout eccentric sleeve replacement device and the eccentric sleeve to be replaced are fixed and firmly grasped;

[0055] 3, the sleeve assembly 908 is manually and quickly forced upward, an upward acceleration force is formed, and the force is applied to the entire railway turnout eccentric sleeve replacement device, so that the eccentric sleeve is taken out;

[0056] 4, practice has proved that when the eccentric sleeve taking-out force is <40 Kg under normal conditions (more than 85%), all the targets can be easily taken out;

[0057] 5, when the eccentric sleeve taking-out force is >40 Kg for some bad eccentric sleeves (about 15%), the lever principle is needed, and the crowbar force is applied to the recesses on both sides of the wrench sleeve 205, so that the eccentric sleeve is effectively taken out.

[0058] The railway turnout eccentric sleeve replacement device of the utility model redefines the purposes and functional designs of the expanding core 102 (expanding principle) and the sleeve assembly 908 (sliding hammer principle) by adopting the combination of the daily general parts, and effectively realizes the rapid effectiveness of the railway maintenance personnel for daily work. The railway turnout eccentric sleeve replacement device is compact in structure, small in occupied volume, and particularly convenient to use, all the spare parts are easy to process and replace, and has the advantages of cost performance.

[0059] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0060] The specific embodiments of the present application are described above. It needs to be understood that the present application is not limited to the specific embodiments described above, and various changes or modifications can be made by those skilled in the art within the scope of the claims, which does not affect the essential content of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A railway switch eccentric sleeve retrieval device, characterized by, The rod body, the plunger (102), the wrench, the sliding sleeve (908), the claw assembly (300) and the handle assembly (100); The plunger (102) is fixed at one end of the rod body, and the handle assembly (100) is fixed at the other end of the rod body; The wrench is detachably installed on the rod body, and the wrench moves axially along the rod body to drive the claw assembly (300) to approach or move away from the plunger (102); The claw assembly (300) and the plunger (102) are connected or separated with the inner wall of the eccentric sleeve; The sliding sleeve (908) is arranged between the handle assembly (100) and the wrench, the rod body allows the sliding sleeve (908) to slide along the axial direction of the rod body, and the handle assembly (100) does not allow the sliding sleeve (908) to pass through.

2. The railway switch eccentric sleeve changing apparatus of claim 1 wherein, The rod body includes a screw rod (101), and the wrench includes a wrench sleeve (205) which is threadedly connected with the screw rod (101).

3. The railway switch eccentric sleeve changing apparatus of claim 2 wherein, The plunger (102) is fixed at one end of the screw rod (101) by the threaded end of the screw rod (101). The diameter of the plunger (102) gradually increases in the direction away from the wrench.

4. The railway switch eccentric sleeve changing apparatus of claim 1 wherein, The claw assembly (300) includes a claw (304), a spring ring (310) and a claw mounting frame (303), the claw mounting frame (303) is sleeved on the rod body, the claw mounting frame (303) is connected with the wrench, the claw (304) is rotatably installed on the claw mounting frame (303), and the spring ring (310) is sleeved on the claw (304).

5. The railway switch eccentric sleeve changing apparatus of claim 4 wherein, The claw (304) includes a plurality of claws (304) which are uniformly installed on the claw mounting frame (303).

6. The railway switch eccentric sleeve changing apparatus of claim 4 wherein, The claw (304) is riveted on the claw mounting frame (303) by a pin shaft (309).

7. The railway switch eccentric sleeve changing apparatus as claimed in claim 1, wherein The handle assembly (100) includes a handle rod (107) and a handle sleeve (106), the handle rod (107) is interference-fitted with the handle sleeve (106), and the connection between the handle rod (107) and the handle sleeve (106) includes a welded connection.

8. The railway switch eccentric sleeve changing apparatus of claim 7 wherein, The handle sleeve (106) does not allow the sliding sleeve (908) to pass through.

9. The railway switch eccentric sleeve changing apparatus of claim 1 wherein, The sliding sleeve (908) is gap-fitted with the rod body, and the axis of the sliding sleeve (908) coincides with the axis of the rod body.

10. The railway switch eccentric sleeve changing apparatus as claimed in claim 1, wherein, The end of the wrench close to the claw assembly (300) includes two oppositely arranged grooves, and the center lines of the grooves coincide with the lines on the end surface of the claw mounting frame (303).

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