Clutch and tamping wagon using same

Abstract

The utility model discloses a clutch and a tamping wagon using the clutch, and belongs to the field of railway maintenance equipment. Comprising a clutch box body, an inner and outer combined spline sleeve, an inner spline chain wheel shaft, a clutch push-pull mechanism and a limiting mechanism, the inner spline chain wheel shaft is rotationally connected with the clutch box body, the inner and outer combined spline sleeve is horizontally and slidably installed in the inner spline chain wheel shaft, and the inner and outer combined spline sleeve and the inner spline chain wheel shaft synchronously rotate; the clutch push-pull mechanism is rotationally connected with the inner and outer combined spline housing, the limiting mechanism is connected with the clutch push-pull mechanism, and the limiting mechanism fixes the position of the clutch push-pull mechanism relative to the clutch box body. According to the clutch, the inner and outer combined spline sleeve is arranged in the inner spline chain wheel shaft in a sliding mode, the clutch push-pull mechanism drives the inner and outer combined spline sleeve to slide in the inner spline chain wheel shaft, and combination or separation of the inner spline chain wheel shaft and the inner and outer combined spline sleeve is achieved. In this way, different use requirements of maneuvering walking and manual pushing walking are switched, the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the field of railway maintenance equipment, in particular to a clutch and a tamping vehicle using the clutch. Background Art

[0002] Railway tracks undergo geometric changes due to rolling stock. When these changes exceed safety standards, maintenance is necessary. For small, self-propelled track maintenance equipment, these machines must be able to automatically travel along the tracks for automated maintenance operations, while also requiring manual propulsion under certain operating conditions. Therefore, the requirements for both motorized and manually propelled travel necessitate the installation of a clutch between the drive and the travel mechanism. Existing clutches are complex and inconvenient to operate. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a clutch which has a simple structure, is easy to operate and can separate the driving power from the traveling mechanism, and a tamping vehicle using the clutch.

[0004] The technical solution adopted by the utility model to solve its technical problems is: the tamping vehicle clutch includes a clutch case, an inner and outer combined spline sleeves, an inner spline sprocket shaft, a clutch push-pull mechanism and a limiting mechanism; the inner spline sprocket shaft is rotatably connected to the clutch case, the inner and outer combined spline sleeves are horizontally slidably installed in the inner spline sprocket shaft, and the inner and outer combined spline sleeves can rotate synchronously with the inner spline sprocket shaft; the clutch push-pull mechanism is rotatably connected to the inner and outer combined spline sleeves; the limiting mechanism is connected to the clutch push-pull mechanism; and the limiting mechanism fixes the position of the clutch push-pull mechanism relative to the clutch case.

[0005] The inner and outer sides of the internal and external combined spline sleeves have splines.

[0006] Preferably, the clutch push-pull mechanism includes a handle and a clutch shaft. A joint bearing is provided on the clutch housing. The middle part of the handle is rotatably connected to the joint bearing. One end of the clutch shaft is movably connected to the handle. The other end of the clutch shaft is rotatably connected to the inner and outer combined spline sleeves. The limiting mechanism is arranged between the clutch housing and the handle.

[0007] Preferably, the limiting mechanism includes a clutch handle seat and a clutch positioning pin. The clutch handle seat is fixed on the upper side of the clutch box. A limiting slot is provided on the clutch handle seat. The upper part of the handle is swingably arranged in the limiting slot. The clutch positioning pin is telescopically arranged on the clutch handle seat. One end of the clutch positioning pin extends into the limiting slot.

[0008] Preferably, a vertical long hole is provided at the lower end of the handle, and a connecting pin is provided at one end of the clutch shaft and is slidably arranged in the long hole.

[0009] Preferably, a return spring is provided between the clutch shaft and the clutch housing.

[0010] Preferably, a clutch shaft boss is provided on the clutch shaft, and a return spring is provided between the clutch shaft boss and the clutch housing.

[0011] Preferably, the inner spline teeth of the sprocket shaft are arranged inside the inner spline sprocket shaft, and the outer side of the inner and outer combined spline sleeves are provided with outer spline teeth of the spline sleeve that match the inner spline teeth of the sprocket shaft.

[0012] A tamping vehicle includes a tamping vehicle body, a transmission structure, a traveling wheel, a driving device and the above-mentioned clutch. The clutch housing is fixed on the tamping vehicle body, the traveling wheel is rotatably arranged on the lower side of the tamping vehicle body, the transmission mechanism connects the inner spline sprocket shaft and the traveling wheel, the driving device is installed on one side of the clutch housing, and the output shaft of the driving device is provided with a spline shaft that matches the inner and outer combined spline sleeves.

[0013] Preferably, the transmission structure includes a main sprocket, a passive sprocket and a chain, the main sprocket is arranged on the inner spline sprocket shaft, the passive sprocket is relatively fixed to the travel wheel, and the chain connects the main sprocket and the passive sprocket.

[0014] Compared with the existing technology, the beneficial effects of this technical solution are:

[0015] The clutch of the utility model is provided with an inner and outer combined spline sleeve that is slidably arranged within the inner spline sprocket shaft. The inner and outer combined spline sleeves are driven to slide within the inner spline sprocket shaft by a clutch push-pull mechanism. The driving device is connected to the inner and outer combined spline sleeves, thereby driving them to rotate. When the clutch push-pull mechanism is activated, the inner spline sprocket shaft and the inner and outer combined spline sleeves rotate synchronously, which is the case of motorized travel. When the clutch push-pull mechanism is activated again, the inner spline sprocket shaft does not rotate, and only the inner and outer combined spline sleeves rotate idly within the inner spline sprocket shaft, which is the case of manual propulsion travel. Then, the conversion between motorized travel and manual propulsion travel is realized, thereby achieving a simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a clutch according to the present invention.

[0017] Figure 2 It is a top view of the utility model.

[0018] Figure 3 for Figure 2 Middle AA section view.

[0019] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0020] Figure 5 This is an exploded view of the utility model.

[0021] Figure 6 Schematic diagram of the connection between the clutch locating pin and the handle.

[0022] Figure 7 Schematic diagram of the clutch positioning pin and handle being separated.

[0023] Figure 8 This is a structural schematic diagram of the separation of the external spline teeth of the spline sleeve and the internal spline teeth of the sprocket shaft.

[0024] Figure 9 It is a structural schematic diagram of the combination of the external spline teeth of the spline sleeve and the internal spline teeth of the sprocket shaft.

[0025] Figure 10 A perspective view of a tamping vehicle using such a clutch.

[0026] Among them: 1, clutch housing 2, clutch shaft 201, clutch shaft boss 3, inner and outer combined spline sleeve 301, spline sleeve outer spline teeth 4, first bearing 5, inner spline sprocket shaft 501, sprocket shaft inner spline teeth 6, main chain wheel 7, handle 701, long hole 702, long positioning hole 8, clutch handle seat 801, clutch positioning pin limiting groove 9, bearing seat 10, clutch shaft seat 11, walking wheel 12, spherical bearing 13, return spring 14, passive sprocket 15, clutch positioning pin 16, second bearing 17, tamping vehicle body 18, clutch shaft bearing 19, drive device. DETAILED DESCRIPTION

[0027] Figures 1 to 10 This is the best embodiment of the present invention, Figures 1 to 10 The utility model is further described.

[0028] Reference Figures 1 to 5The tamping machine clutch includes a clutch housing 1, an inner and outer combined splined sleeve 3, an inner splined sprocket shaft 5, a clutch push-pull mechanism, and a limit mechanism. The inner splined sprocket shaft 5 is connected to a first bearing 4 disposed between the clutch housing 1. The inner spline of the inner splined sprocket shaft 5 comprises multiple sets of discontinuous tooth structures. The outer side of the inner and outer combined splined sleeve 3 is provided with discontinuous toothed external splines that mate with the inner splined shaft 5. The inner and outer combined splined sleeve 3 is horizontally slidably mounted within the inner splined sprocket shaft 5. When the inner spline teeth 501 of the sprocket shaft mate with the outer spline teeth 301 of the splined sleeve, the inner and outer combined splined sleeve 3 and the inner splined sprocket shaft 5 rotate synchronously. When the inner spline teeth 501 of the sprocket shaft mate with the outer spline teeth 301 of the splined sleeve, the inner and outer splined sleeve 3 and the inner splined sprocket shaft 5 do not rotate. The clutch push-pull mechanism is rotationally connected to the inner and outer combined spline sleeves 3 , and the limiting mechanism is connected to the clutch push-pull mechanism. The limiting mechanism fixes the position of the clutch push-pull mechanism relative to the clutch housing 1 .

[0029] The clutch push-pull mechanism includes a handle 7 and a clutch shaft 2. The clutch shaft 2 is coaxially coupled to the inner and outer splined sleeves 3. One end of the clutch shaft 2 is connected to a clutch shaft bearing 18 located at one end of the inner and outer splined sleeves 3. The clutch shaft 2 is fixedly connected to the inner race of the clutch shaft bearing 18. The other end of the clutch shaft 2 passes through the clutch housing 1 and connects to the lower end of the handle 7 located on one side of the clutch housing. A vertical slot 701 is provided at the lower end of the handle 7. One end of the clutch shaft 2 is provided with a connecting pin that slides within the slot 701. The connecting pin drives the clutch shaft 2 to achieve horizontal movement and slide along the slot 701.

[0030] Multiple sets of sprocket shaft internal spline teeth 501 are axially spaced apart within the internal spline sprocket shaft 5. The exterior of the internal and external combined spline sleeve 3 is similarly axially provided with external spline teeth 301 corresponding to the internal spline teeth 501. The internal and external combined spline sleeve 3 is horizontally slidably mounted on the external spline output shaft of the drive unit 19, and the internal and external combined spline sleeve 3 moves horizontally within the internal spline sprocket shaft 5. The inner bore of the internal and external combined spline sleeve 3 is an internal spline structure, and the output shaft of the drive unit 19 is an external spline structure, forming an internal and external spline sliding connection. When the internal and external combined spline sleeve 3 and the drive unit 19 are fully engaged, the external spline teeth 301 of the spline sleeve cooperate with the internal spline teeth 501 of the sprocket shaft to achieve drive power output. When the internal and external combined spline sleeve 3 moves horizontally outward due to the action of force, the external spline teeth 301 of the spline sleeve and the internal spline teeth 501 of the sprocket shaft separate, and no drive power is output at this time.

[0031] The clutch housing 1 is a rectangular shell. A cylindrical bearing seat 9 is located on the inner side of the panel facing away from the handle 7. Within this seat is a cylindrical through-hole, into which two first bearings 4 are mounted. A through-hole coaxial with the bearing seat 9 is located on the panel facing the handle 7. One end of the internal spline sprocket shaft 5 is positioned within this through-hole. A clutch shaft seat 10 is located outside this through-hole and is fixed to the clutch housing 1. The clutch shaft 2 passes through this seat and is pinned to the lower end of the handle 7.

[0032] Two bearing holes are also provided on the clutch housing 1. The bearing holes are provided on the lower side of the clutch shaft seat 10. Second bearings 16 are respectively installed in the two bearing holes. The main shaft of the walking wheel 11 is connected with the two second bearings 16. A bearing end cover is provided on the outer side of the bearing hole near the handle 7 for fixing.

[0033] A clutch shaft boss 201 is provided on the clutch shaft 2 , and a return spring 13 is provided between the clutch shaft boss 201 and the clutch shaft seat 10 .

[0034] See also Figure 1 、 6 -7, the limiting mechanism in this embodiment includes a clutch handle base 8 and a clutch positioning pin 15. The clutch handle base 8 is fixed to the upper side of the clutch housing 1. The clutch handle base 8 is provided with a spherical bearing 12. The middle portion of the handle 7 is connected to the spherical bearing 12, allowing the upper and lower ends of the handle 7 to swing horizontally with the spherical bearing 12 as the fulcrum, thereby achieving horizontal movement of the clutch shaft 2. The clutch positioning pin 15 is movably disposed on the clutch handle base 8.

[0035] A horizontal clutch handle seat extends parallel to the upper end of clutch handle seat 8. A semicircular retaining groove 801 is provided on the horizontal clutch handle seat, and the upper portion of handle 7 swings within retaining groove 801. A clutch positioning pin 15 is telescopically mounted on clutch handle seat 8. Handle 7 also has an elongated positioning hole 702, with one end of clutch positioning pin 15 extending into retaining groove 801. A spring is provided between clutch positioning pin 15 and clutch handle seat 8 to push one end of clutch positioning pin 15 into retaining groove 801. When the tamping vehicle needs to be manually moved, one end of clutch positioning pin 15 is inserted into elongated positioning hole 702 of handle 7 to lock handle 7. To move handle 7, clutch positioning pin 15 is withdrawn from elongated positioning hole 702 to unlock handle 7. The handle 7 can then be moved, with one end of clutch positioning pin 15 now extending into retaining groove 801 and positioned on one side of handle 7.

[0036] Reference Figure 8-9By turning the handle 7, the connecting pin connected to the end point of the clutch shaft 2 moves horizontally with the spherical bearing 12 as the fulcrum, driven by the elongated hole 701, thereby driving the clutch shaft 2 to move horizontally. The inner and outer combined spline sleeve 3, which is rotationally connected to the clutch shaft 2, moves horizontally within the spline groove of the inner spline sprocket shaft 5, thereby driving the outer spline teeth 301 of the spline sleeve to engage or disengage with the inner spline teeth 501 of the sprocket shaft.

[0037] Reference Figure 10 The embodiment of the present invention also provides a tamping vehicle equipped with the above-mentioned clutch, including a tamping vehicle body 17, a transmission structure, a traveling wheel 11, a driving device 19 and a clutch. The clutch housing 1 is fixed on the tamping vehicle body 17, and the traveling wheel 11 is rotatably arranged on the lower side of the tamping vehicle body 17. The transmission mechanism connects the inner spline sprocket shaft 5 and the traveling wheel 11. The driving device 19 is fixed on the left side of the clutch housing 1. The output shaft of the driving device 19 is provided with a spline shaft that matches the inner and outer combined spline sleeves 3.

[0038] The transmission structure includes a main sprocket 6, a passive sprocket 14 and a chain. The main sprocket 6 is integrated with the internal spline sprocket shaft 5. The passive sprocket 14 is installed on the rotating shaft of the traveling wheel 11. The rotating shaft is connected to the clutch box 1 through two traveling wheel bearings 16. The main sprocket 6 and the passive sprocket 14 are connected by a chain.

[0039] When the outer spline teeth 301 of the spline sleeve mesh with the inner spline teeth 501 of the sprocket shaft, the drive device 19 drives the inner spline sprocket shaft 5 to rotate, which in turn rotates the main chain wheel 6, which in turn drives the driven sprocket wheel 14 to rotate, thereby driving the travel wheel 11 to rotate, thus achieving motorized travel of the tamping machine. When the outer spline teeth 301 of the spline sleeve and the inner spline teeth 501 of the sprocket shaft are separated, manual propulsion is achieved.

[0040] Working process:

[0041] To switch from motorized travel to manual propulsion, pull the clutch positioning pin 15 to release the side positioning of the clutch positioning pin 15 on the handle 7. Then, bend the handle 7 to the right and insert the clutch positioning pin into the long positioning hole 702 on the handle 7 to lock the clutch handle 7. During this process, the handle 7 swings around the spherical bearing 12 as a fulcrum, and the lower end of the handle 7 drives the clutch shaft 2 to move horizontally. The clutch shaft 2 drives the inner and outer combined spline sleeve 3 to move horizontally within the spline groove of the inner spline sprocket shaft 5, thereby separating the outer spline teeth 301 of the spline sleeve from the inner spline teeth 501 of the sprocket shaft, and releasing the motorized travel.

[0042] To switch to motorized travel, the clutch positioning pin 15 is pulled to release the clutch positioning pin 15 from locking the handle 7, and the handle 7 is moved leftward to a position free from the clutch positioning pin 15. At the moment of starting motorized travel, the return spring 13 causes the inner and outer combined spline sleeves to slide leftward, and the outer spline teeth 301 of the spline sleeves automatically engage with the inner spline teeth 501 of the sprocket shaft, achieving motorized travel. In this embodiment, the drive device is a hydraulic motor.

[0043] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A clutch, characterized in that: The invention comprises a clutch housing (1), an inner and outer combined spline sleeves (3), an inner spline sprocket shaft (5), a clutch push-pull mechanism and a limiting mechanism. The inner spline sprocket shaft (5) is rotatably connected to the clutch housing (1). The inner and outer combined spline sleeves (3) are horizontally slidably installed in the inner spline sprocket shaft (5). The inner and outer combined spline sleeves (3) can rotate synchronously with the inner spline sprocket shaft (5). The clutch push-pull mechanism is rotatably connected to the inner and outer combined spline sleeves (3). The limiting mechanism is connected to the clutch push-pull mechanism. The limiting mechanism fixes the position of the clutch push-pull mechanism relative to the clutch housing (1).

2. A clutch according to claim 1, characterized in that: The clutch push-pull mechanism comprises a handle (7) and a clutch shaft (2); a joint bearing (12) is provided on the clutch housing (1); the middle portion of the handle (7) is rotatably connected to the joint bearing (12); one end of the clutch shaft (2) is movably connected to the handle (7); the other end of the clutch shaft (2) is rotatably connected to the inner and outer combined spline sleeves (3); and a limiting mechanism is provided between the clutch housing (1) and the handle (7).

3. A clutch according to claim 2, characterized in that: The limiting mechanism comprises a clutch handle seat (8) and a clutch positioning pin (15); the clutch handle seat (8) is fixed on the upper side of the clutch housing (1); a limiting groove (801) is provided on the clutch handle seat (8); the upper portion of the handle (7) is swingably arranged in the limiting groove (801); the clutch positioning pin (15) is telescopically arranged on the clutch handle seat (8); and one end of the clutch positioning pin (15) extends into the limiting groove (801).

4. A clutch according to claim 2, characterized in that: The lower end of the handle (7) is provided with a vertical long hole (701), and one end of the clutch shaft (2) is provided with a connecting pin slidably arranged in the long hole (701).

5. The clutch according to claim 2, characterized in that: A return spring (13) is provided between the clutch shaft (2) and the clutch housing (1).

6. A clutch according to claim 5, characterized in that: A clutch shaft boss (201) is provided on the clutch shaft (2), and a return spring (13) is provided between the clutch shaft boss (201) and the clutch housing (1).

7. The clutch according to claim 1, characterized in that: The inner spline sprocket shaft (5) is provided with inner spline teeth (501) of the sprocket shaft, and the outer side of the inner and outer combined spline sleeve (3) is provided with outer spline teeth (301) of the spline sleeve that match the inner spline teeth (501) of the sprocket shaft.

8. A tamping vehicle using such a clutch, characterized in that: The invention comprises a tamping vehicle body (17), a transmission structure, a traveling wheel (11), a driving device (19) and a clutch as claimed in any one of claims 1 to 7, wherein the clutch housing (1) is fixed on the tamping vehicle body (17), the traveling wheel (11) is rotatably arranged on the lower side of the tamping vehicle body (17), the transmission mechanism connects the inner spline sprocket shaft (5) and the traveling wheel (11), the driving device (19) is installed on one side of the clutch housing (1), and the output shaft of the driving device (19) is provided with a spline shaft matching the inner and outer combined spline sleeves (3).

9. A tamping vehicle using such a clutch according to claim 8, characterized in that: The transmission structure comprises a main sprocket (6), a passive sprocket (14) and a chain, wherein the main sprocket (6) is arranged on the inner spline sprocket shaft (5), the passive sprocket (14) and the travel wheel (11) are relatively fixed, and the chain connects the main sprocket (6) and the passive sprocket (14).

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