CN213057082U - Driving device for beam-changing turnout - Google Patents

Abstract

The utility model provides a driving device of a beam-changing turnout, which comprises a sliding component and a driving component; the upper end of the sliding component is suitable for being sleeved on a portal beam of the portal assembly, and the lower end of the sliding component is suitable for being connected with the turnout beam assembly; and the driving assembly is arranged on the gantry beam and is suitable for driving the sliding assembly to slide along the length direction of the gantry beam. The utility model discloses a establish the subassembly cover that slides among the drive arrangement on the portal crossbeam for the subassembly that slides wraps up the portal crossbeam wherein, has not only strengthened the vertical rigidity of portal crossbeam, makes things convenient for the dismouting moreover.

Description

Driving device for beam-changing turnout

Technical Field

The utility model relates to a suspension type track traffic technical field particularly, relates to a trade drive arrangement of roof beam type switch.

Background

At present, the existing beam-changing turnout is usually made into a U-shaped structure by a portal beam, and a driving device is arranged in the U-shaped groove of the portal beam so as to achieve the purposes of bearing and guiding. The vertical rigidity of the portal beam is reduced due to the connection mode of the driving device and the portal beam, large vertical deformation is easily generated, meanwhile, the driving device is arranged in a U-shaped groove of the portal beam, water is easily accumulated, and the overhauling or disassembling operation space is small, so that the overhauling or disassembling operation is complicated and the workload is large.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be: how to improve the convenience of the drive device of the beam-changing turnout in the process of overhauling or disassembling operation.

In order to solve the problems, the utility model provides a driving device of a beam-changing turnout, which comprises a sliding component and a driving component; the upper end of the sliding component is sleeved on a portal beam of the portal assembly, and the lower end of the sliding component is suitable for being connected with the turnout beam assembly; and the driving assembly is arranged on the gantry beam and is suitable for driving the sliding assembly to slide along the length direction of the gantry beam.

Optionally, the sliding assembly comprises a sliding sleeve assembly with a cavity, the portal beam penetrates through the cavity so that the sliding sleeve assembly is sleeved on the portal beam, and the lower end of the sliding sleeve assembly is suitable for being connected with the turnout beam assembly.

Optionally, the subassembly that slides still includes first connecting piece, just the sliding sleeve assembly is provided with two, the straight roof beam of switch and the curved roof beam of switch in the switch beam assembly are respectively through one the sliding sleeve assembly with the portal crossbeam is connected, and two the sliding sleeve assembly passes through the connection can be dismantled to first connecting piece.

Optionally, the sliding sleeve assembly comprises an upper sliding sleeve, a lower sliding sleeve and a second connecting piece, and the upper sliding sleeve and the lower sliding sleeve are detachably connected through the second connecting piece.

Optionally, the upper sliding sleeve is provided with a first sliding groove, an opening of the first sliding groove faces downwards, the lower sliding sleeve is provided with a second sliding groove, an opening of the second sliding groove faces upwards, and the first sliding groove and the second sliding groove form the cavity.

Optionally, a sliding plate is arranged on the inner wall of the first sliding chute and arranged along the moving direction of the upper sliding sleeve; when the upper sliding sleeve slides along the portal beam, the upper sliding sleeve is suitable for contacting with the portal beam at the sliding plate.

Optionally, the sliding assembly further comprises a stopping structure arranged on the gantry beam, wherein the stopping structure is arranged on two sides of the sliding sleeve assembly in the length direction of the gantry beam and is suitable for limiting the sliding displacement of the sliding sleeve assembly.

Optionally, the driving assembly comprises a cylinder base, an electric cylinder arranged on the cylinder base and a push rod arranged on the electric cylinder, one end of the push rod is fixed on the sliding sleeve assembly, the other end of the push rod is connected with the electric cylinder, the electric cylinder is arranged at the end of the gantry beam and is suitable for driving the push rod to stretch and retract so as to drive the sliding sleeve assembly to slide on the gantry beam.

Optionally, the driving assembly further includes a push rod seat disposed on the sliding sleeve assembly, and the end of the push rod far away from the electric cylinder is detachably connected to the push rod seat.

Optionally, the driving assembly further includes a guide sleeve provided with a guide groove, the guide sleeve is fixed on the electric cylinder, and one end of the push rod, which is far away from the end connected with the push rod seat, is adapted to slide in the guide groove.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a establish the subassembly cover that slides among the drive arrangement on the portal crossbeam, utilize the drive assembly drive subassembly that slides simultaneously to slide along the portal crossbeam for the subassembly that slides wraps up the portal crossbeam wherein, has not only strengthened the vertical rigidity of portal crossbeam, has reduced the vertical deformation of portal crossbeam, makes things convenient for the dismouting moreover, has reduced the work load of disassembling in later stage.

Drawings

Fig. 1 is a schematic structural diagram of a driving device in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a sliding sleeve assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an upper sliding sleeve in an embodiment of the present invention;

fig. 4 is a schematic structural view of the lower sliding sleeve in the embodiment of the present invention.

Description of reference numerals:

1-a sliding component, 11-a cavity, 12-a sliding sleeve assembly, 121-an upper sliding sleeve, 1211-a first sliding groove, 1212-a sliding plate, 1213-a first pin hole, 122-a lower sliding sleeve, 1221-a second sliding groove, 1222-a second pin hole, 1223-a hanging plate, 123-a second connecting piece, 13-a first connecting piece and 14-a stopping structure; 2-driving component, 21-cylinder seat, 22-electric cylinder, 23-push rod, 24-push rod seat and 25-guide sleeve; 3-gantry beam, 31-antifriction plate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the coordinate system XYZ provided herein, the X-axis forward direction represents the rear, the X-axis reverse direction represents the front, the Y-axis forward direction represents the right, the Y-axis reverse direction represents the left, the Z-axis forward direction represents the upper, and the Z-axis reverse direction represents the lower. Also, it is noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

With reference to fig. 1, an embodiment of the present invention provides a driving device for a beam-changing type turnout, including a sliding assembly 1 and a driving assembly 2; the upper end of the sliding component 1 is suitable for being sleeved on a portal beam 3 of the portal assembly, and the lower end of the sliding component 1 is suitable for being connected with the turnout beam assembly; and the driving assembly 2 is arranged on the gantry beam 3 and is suitable for driving the sliding assembly 1 to slide along the length direction of the gantry beam 3.

Wherein, the upper end of the sliding component 1 refers to the end part of the sliding component 1 on the positive direction of the Z axis in fig. 1, and the lower end of the sliding component 1 refers to the end part of the sliding component 1 on the negative direction of the Z axis in fig. 1; the longitudinal direction of the gantry beam 3 refers to the Y-axis direction in fig. 1.

Compared with the prior art that the driving device is arranged in the U-shaped groove of the U-shaped gantry beam, the sliding assembly 1 in the driving device is sleeved on the gantry beam 3, and meanwhile, the driving assembly 2 is used for driving the sliding assembly 1 to slide along the gantry beam 3, so that the gantry beam 3 is wrapped in the sliding assembly 1, the structure is simple, the processing is easy, and the structural integrity of the gantry beam 3 is also ensured; meanwhile, the portal frame cross beam 3 can integrally provide support for the driving device, so that the vertical rigidity of the portal frame cross beam 3 is effectively enhanced, and the vertical deformation of the portal frame cross beam 3 is reduced; the maintenance and disassembly work of operators on the two sides of the gantry beam 3 is facilitated, the operation space is large, and the workload during later maintenance or disassembly is effectively reduced; in addition, the door frame cross beam 3 can be prevented from accumulating rainwater when being used in rainy days, and the rainwater is prevented from corroding the door frame cross beam 3 and parts of the driving device, so that the safety of the driving device and the door frame cross beam 3 in connection is ensured.

Further, the gantry beam 3 is of a box beam structure. Therefore, the structure is simple, and the purpose of reducing the dead weight can be realized on the premise of meeting the structural strength.

Alternatively, as shown in fig. 2, the sliding assembly 1 includes a sliding sleeve assembly 12 having a cavity 11, the gantry beam 3 is adapted to pass through the cavity 11 such that the sliding sleeve assembly 12 is sleeved on the gantry beam 3, and the lower end of the sliding sleeve assembly 12 is adapted to be connected with the switch beam assembly.

In this embodiment, the cavity 11 runs through the sliding sleeve assembly 12 along the length direction of the gantry beam 3, i.e. the sliding sleeve assembly 12 is integrally in a structure like a Chinese character kou, the gantry beam 3 runs through the sliding sleeve assembly 12 from the cavity 11, so as to realize that the sliding sleeve assembly 12 is installed on the gantry beam 3 in a sleeved manner. Therefore, the sliding component 1 can slide along the gantry beam 3 conveniently, and meanwhile, the sliding component 1 can be supported.

Further, as shown in fig. 2, a hanger plate 1223 is disposed at the lower end of the lower sliding sleeve 122, a first connection hole is disposed on the hanger plate 1223, a second connection hole is disposed on the turnout beam assembly, and the hanger plate 1223 and the turnout beam assembly are detachably connected through a pin at the first connection hole and the second connection hole. So, realize being connected between sliding sleeve assembly 12 and the switch beam assembly through setting up hanger plate 1223 for can drive the switch beam assembly and remove together when drive arrangement drive sliding sleeve assembly 12 removes, realize trading the roof beam operation.

Optionally, as shown in fig. 1, the sliding assembly 1 further includes a first connecting member 13, and there are two sliding sleeve assemblies 12, the turnout straight beam and the turnout curved beam in the turnout beam assembly are respectively connected with the frame cross beam 3 through one sliding sleeve assembly 12, and the two sliding sleeve assemblies 12 are detachably connected through the first connecting member 13. So, each switch straight beam or switch bent beam can both form sliding connection through a sliding sleeve assembly 12 and portal crossbeam 3, when the switch beam assembly increases or reduces the switch beam, can satisfy the demand through the quantity that increases or reduces sliding sleeve assembly 12, and need not redesign sliding sleeve assembly 12's structure, has improved sliding sleeve assembly 12's commonality.

Further, the first connecting element 13 comprises a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are respectively arranged on the two sliding sleeve assemblies 12, and the first connecting plate and the second connecting plate are located between the two sliding sleeve assemblies 12; in one embodiment, the first connecting plate and the second connecting plate are provided with hole structures, and fasteners such as bolts are screwed into the hole structures of the first connecting plate and the second connecting plate to realize the detachable connection between the two sliding sleeve assemblies 12; in another embodiment, the first connecting plate and the second connecting plate are welded to form an integral structure, so as to achieve a fixed connection between the two sliding sleeve assemblies 12.

Optionally, as shown in fig. 2, the sliding sleeve assembly 12 includes an upper sliding sleeve 121, a lower sliding sleeve 122 and a second connecting member 123, wherein the upper sliding sleeve 121 and the lower sliding sleeve 122 are detachably connected through the second connecting member 123.

In this embodiment, by setting the sliding sleeve assembly 12 to be a vertically split structure, the upper sliding sleeve 121 and the lower sliding sleeve 122 are utilized to wrap the gantry beam 3 therein; when the sliding sleeve assembly 12 is installed, the upper sliding sleeve 121 can be installed on the gantry beam 3 firstly, and then the lower sliding sleeve 122 is installed on the upper sliding sleeve 121, and when the upper sliding sleeve 121 is disassembled, the lower sliding sleeve 122 can be disassembled from the upper sliding sleeve 121, and then the upper sliding sleeve 121 is disassembled from the gantry beam 3, so that the assembling and disassembling are convenient and the efficiency is high.

Further, as shown in fig. 2 to fig. 4, the second connecting member 123 is a pin, a first pin hole 1213 is disposed on the upper sliding sleeve 121, a second pin hole 1222 is disposed at a corresponding position on the lower sliding sleeve 122, and the upper sliding sleeve 121 and the lower sliding sleeve 122 are detachably connected by a pin at the first pin hole 1213 and the second pin hole 1222. So, realize going up the dismantled connection between sliding sleeve 121 and the lower sliding sleeve 122 through setting up the round pin shaft hole and round pin axle, simple structure, the commonality is strong.

Optionally, the sliding sleeve assembly 12 includes an upper sliding sleeve 121 and a lower sliding sleeve 122, and does not include the second connecting member 123, and the upper sliding sleeve 121 and the lower sliding sleeve 122 are fixedly connected by welding. Thus, the sliding sleeve assembly 12 forms a non-detachable whole, which can be applied to a driving device that does not need to disassemble the sliding sleeve assembly 12, so as to ensure the firmness of the connection between the upper sliding sleeve 121 and the lower sliding sleeve 122.

Optionally, as shown in fig. 2 and fig. 3, the upper sliding sleeve 121 is provided with a first sliding slot 1211, an opening of the first sliding slot 1211 faces downward, the lower sliding sleeve 122 is provided with a second sliding slot 1221, an opening of the second sliding slot 1221 faces upward, and the first sliding slot 1211 and the second sliding slot 1221 form a cavity 11.

In this embodiment, the upper sliding sleeve 121 is in an inverted U-shaped structure, the lower sliding sleeve 122 is in a U-shaped structure, and after the upper sliding sleeve 121 and the lower sliding sleeve 122 are assembled, the first sliding groove 1211 and the second sliding groove 1221 form a cavity 11, and finally the sliding sleeve assembly 12 shaped like a Chinese character kou is formed. In this way, by arranging the sliding groove structures on the upper sliding sleeve 121 and the lower sliding sleeve 122, the gantry beam 3 is wrapped in the cavity 11 by using the sliding groove structures, so as to reduce the overall volume of the sliding sleeve assembly 12 assembled with the gantry beam 3, and make the connection between the sliding sleeve assembly 12 and the gantry beam 3 more compact and stable.

Optionally, as shown in fig. 3, a sliding plate 1212 is disposed on an inner wall of the first sliding chute 1211, and the sliding plate 1212 is disposed along the moving direction of the upper sliding sleeve 121; the upper sliding sleeve 121 is adapted to contact the gantry beam 3 at the sled 1212 as the upper sliding sleeve 121 slides along the gantry beam 3.

In the present embodiment, the upper sliding sleeve 121 is moved along the length direction of the gantry beam 3 by the driving assembly 2, so the moving direction of the upper sliding sleeve 121 refers to the length direction of the gantry beam 3, i.e., the Y-axis direction in fig. 1. That is, the sliding plate 1212 is provided on the inner wall of the first slide groove 1211 along the length direction of the gantry beam 3. Specifically, the first chute 1211 has inner walls in the front-rear direction and the upper direction, and the sliding plate 1212 may be provided on one or more of the three inner walls of the first chute 1211, and in this embodiment, it is preferable that the sliding plate 1212 is provided on each of the three inner walls of the first chute 1211, so that the upper end surface of the gantry beam 3 contacts the sliding plate 1212 at the upper inner wall of the first chute 1211, the front end surface of the gantry beam 3 contacts the sliding plate 1212 at the front inner wall of the first chute 1211, and the rear end of the gantry beam 3 contacts the sliding plate 1212 at the rear inner wall of the first chute 1211, thereby reducing the contact area between the gantry beam 3 and the inner wall of the first chute 1211. Thus, the sliding plate 1212 on the inner wall above the first sliding groove 1211 can reduce the frictional resistance between the upper sliding sleeve 121 and the upper end surface of the frame cross member 3, and the sliding plate 1212 on the inner wall in the front-rear direction of the first sliding groove 1211 can reduce the frictional resistance between the upper sliding sleeve 121 and the front-rear end surface of the frame cross member 3 when the upper sliding sleeve 121 contacts the front-rear end surface of the frame cross member 3, so as to improve the speed of the sliding sleeve assembly 12 when sliding, thereby realizing the rapid beam replacement operation, and at the same time, reducing the post maintenance and prolonging the service life of the sliding sleeve assembly 12.

Further, as shown in fig. 1, the sliding plate 1212 on the upper inner wall of the first sliding groove 1211 is attached to the gantry beam 3, and a distance is provided between the sliding plate 1212 on the inner wall of the first sliding groove 1211 in the front-rear direction and the gantry beam 3. Like this, go up the inner wall that slide sleeve 121 was located the top and the upper surface direct contact of portal crossbeam 3, play the bearing effect, and go up and to slide the inner wall that sleeve 121 is located the fore-and-aft direction and have the interval between the fore-and-aft surface of portal crossbeam 3, be not direct contact, when sliding sleeve assembly 12 produced the displacement of fore-and-aft direction, slide 1212 can play spacing and guide's effect to guarantee that sliding sleeve assembly 12 can follow the length direction steady movement of portal crossbeam 3.

Further, as shown in fig. 2, the gantry beam 3 is provided with a friction reducing plate 31 at a position corresponding to the sliding plate 1212, and the friction reducing plate 31 is adapted to reduce friction between the upper sliding sleeve 121 and the gantry beam 3 when the sliding sleeve assembly 12 slides along the gantry beam 3. Therefore, when the sliding sleeve assembly 12 slides on the gantry beam 3, the contact is only generated at the sliding plate 1212 and the antifriction plate 31, the contact area is small, so that the frictional resistance between the upper sliding sleeve 121 and the gantry beam 3 can be further reduced, and the rapid beam change operation is realized.

Optionally, as shown in fig. 1, the sliding assembly 1 further includes a stop structure 14 for being disposed on the gantry beam 3, and the stop structure 14 is disposed on two sides of the sliding sleeve assembly 12 in the length direction of the gantry beam 3 and adapted to limit the sliding displacement of the sliding sleeve assembly 12.

In this embodiment, when the sliding sleeve assembly 12 slides to the left, the sliding sleeve assembly 12 moves to abut against the stop structure 14 on the left side, which indicates that the sliding sleeve assembly 12 moves to the left, and at this time, the turnout curved beam is communicated with the track beam assembly, and the vehicle can pass through the curved line; when the sliding sleeve assembly 12 slides rightwards, the sliding sleeve assembly 12 moves to abut against the stop structure 14 on the right side, which indicates that the sliding sleeve assembly 12 moves rightwards to a position, at this time, the turnout straight beam is communicated with the track beam assembly, and the vehicle can pass through linearly. So, come the slip displacement of restriction sliding sleeve assembly 12 through setting up backstop structure 14 to improve the accurate nature when communicateing between switch beam assembly and the track beam assembly, prevent that switch beam assembly and track beam assembly from taking place the dislocation when the intercommunication.

Further, because there is the straightway part in the front end of the switch curved beam, make the front end of the switch curved beam and the front end of the straight beam of the switch be parallel arrangement, and the rear end of the switch curved beam is the bending form, make the rear end of the switch curved beam and the rear end of the straight beam of the switch have an included angle, so the appearance of two sliding sleeve assemblies 12 on the front gantry can be designed into the same structure, and then the appearance of two sliding sleeve assemblies 12 on the gantry needs to be designed slightly differently, that is to say, two sliding sleeve assemblies 12 on the front gantry are the same in structure and parallel arrangement, and then two sliding sleeve assemblies 12 on the gantry slightly have different structures and have certain included angle.

Optionally, as shown in fig. 1, the driving assembly 2 includes a cylinder base 21, an electric cylinder 22 disposed on the cylinder base 21, and a push rod 23 disposed on the electric cylinder 22, one end of the push rod 23 is fixed on the sliding sleeve assembly 12, the other end of the push rod 23 is connected to the electric cylinder 22, and the electric cylinder 22 is disposed at an end of the gantry beam 3 and is adapted to drive the push rod 23 to extend and retract to drive the sliding sleeve assembly 12 to slide on the gantry beam 3. Therefore, the push rod 23 is driven by the electric cylinder 22 to move along the length direction of the gantry beam 3, and then the sliding sleeve assembly 12 is pushed to slide on the gantry beam 3.

Further, the electric cylinder 22 is hinged with the electric cylinder base 21. So, adopt the articulated mode to fix between electric jar 22 and the electric jar seat 21 for electric jar 22 can produce certain rotation between and the portal crossbeam 3, and when each spare part at drive assembly 2 warp because of expend with heat and contract with cold, the articulated revolute pair can make electric jar 22 under certain geometric error condition, still can smoothly stably promote sliding sleeve assembly 12 and slide.

Optionally, as shown in fig. 1, the driving assembly 2 further includes a push rod seat 24 disposed on the sliding sleeve assembly 12, and an end of the push rod 23, which is far away from the end connected to the electric cylinder 22, is detachably connected to the push rod seat 24. So, realize being connected between push rod 23 and the sliding sleeve assembly 12 through setting up push rod seat 24 for push rod seat 24 can also provide the support for push rod 23 when connecting push rod 23 and sliding sleeve assembly 12, has improved the anti axial force's when push rod 23 is connected with push rod seat 24 performance.

Further, as shown in fig. 1, one of the hinge hole and the hinge shaft is provided on the push rod seat 24, the other of the hinge hole and the hinge shaft is provided at a corresponding position on the push rod 23, and the push rod seat 24 is hinged to the push rod 23 through the hinge hole and the hinge shaft. Like this, realize the dismantled connection between push rod 423 and the push rod seat 424 through hinge hole and articulated shaft, simple structure, easy manufacturing, and the commonality is high.

Optionally, as shown in fig. 1, the driving assembly 2 further includes a guide sleeve 25 having a guide groove, the guide sleeve 25 is fixed on the electric cylinder 22, and the end of the push rod 23, which is far away from the end connected with the push rod seat 24, is adapted to slide in the guide groove. Thus, when the electric cylinder 22 pushes the push rod 23 to move linearly, the push rod 23 can slide in the guide groove along the axial direction of the guide sleeve 25, so that the push rod 23 is prevented from shifting during extending or retracting, and the linear movement of the push rod 23 is ensured.

The specific working principle of the driving device is as follows: the electric cylinder 22 of the driving component 2 pushes the push rod 23 to move horizontally and extend leftwards along the axis of the guide sleeve 25, meanwhile, the push rod 23 drives the sliding sleeve assembly 12 to slide leftwards along the length direction of the portal beam 3, the turnout beam assembly fixed on the hanger plate 1223 below the sliding sleeve assembly 12 moves leftwards along with the sliding sleeve assembly 12, when the sliding sleeve assembly 12 slides to abut against the stop structure 14 on the left side, the sliding sleeve assembly 12 moves leftwards to move, at the moment, the turnout curved beam in the turnout beam assembly is communicated with the track beam assembly, and vehicles can pass through in a curved line; when the electric cylinder 22 of the driving component 2 pulls the push rod 23 to retract rightwards along the axis of the guide sleeve 25, the push rod 23 pulls the sliding sleeve assembly 12 to slide rightwards along the length direction of the gantry beam 3, the turnout beam assembly fixed on the hanger plate 1223 below the sliding sleeve assembly 12 moves rightwards along with the sliding sleeve assembly 12, when the sliding sleeve assembly 12 slides to abut against the stop structure 14 on the right side, the sliding sleeve assembly 12 moves rightwards to be displaced, at the moment, the turnout straight beam in the turnout beam assembly is communicated with the track beam assembly, and vehicles can pass through linearly.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims (10)

1. A driving device of a beam-changing turnout is characterized by comprising a sliding assembly (1) and a driving assembly (2); the upper end of the sliding component (1) is suitable for being sleeved on a portal beam (3) of the portal assembly, and the lower end of the sliding component (1) is suitable for being connected with a turnout beam assembly; and the driving assembly (2) is arranged on the gantry beam (3) and is suitable for driving the sliding assembly (1) to slide along the length direction of the gantry beam (3).

2. The drive device of the beam-changing turnout junction according to claim 1, wherein the sliding assembly (1) comprises a sliding sleeve assembly (12) with a cavity (11), the gantry beam (3) is suitable for passing through the cavity (11) so that the sliding sleeve assembly (12) is sleeved on the gantry beam (3), and the lower end of the sliding sleeve assembly (12) is suitable for being connected with the turnout beam assembly.

3. The driving device of the beam-changing turnout junction according to claim 2, wherein the sliding assembly (1) further comprises a first connecting piece (13), and the sliding sleeve assemblies (12) are provided with two, a turnout straight beam and a turnout curved beam in the turnout beam assembly are respectively connected with the gantry beam (3) through one sliding sleeve assembly (12), and the two sliding sleeve assemblies (12) are detachably connected through the first connecting piece (13).

4. The driving device for the bridge-changing turnout junction according to claim 2, wherein the sliding sleeve assembly (12) comprises an upper sliding sleeve (121), a lower sliding sleeve (122) and a second connecting piece (123), and the upper sliding sleeve (121) and the lower sliding sleeve (122) are detachably connected through the second connecting piece (123).

5. The driving device for a bridge-changing turnout according to claim 4, wherein a first sliding slot (1211) is provided on the upper sliding sleeve (121), an opening of the first sliding slot (1211) faces downwards, a second sliding slot (1221) is provided on the lower sliding sleeve (122), an opening of the second sliding slot (1221) faces upwards, and the first sliding slot (1211) and the second sliding slot (1221) form the cavity (11).

6. The driving device for a switch of a bridge changing type according to claim 5, wherein a sliding plate (1212) is provided on an inner wall of the first sliding groove (1211), and the sliding plate (1212) is provided along a moving direction of the upper sliding sleeve (121); when the upper sliding sleeve (121) slides along the gantry beam (3), the upper sliding sleeve (121) is suitable for contacting the gantry beam (3) at the sliding plate (1212).

7. The drive device of the beam-changing turnout junction according to any one of claims 2-6, wherein the sliding assembly (1) further comprises a stop structure (14) arranged on the gantry beam (3), the stop structure (14) is arranged on two sides of the sliding sleeve assembly (12) in the length direction of the gantry beam (3) and is suitable for limiting the sliding displacement of the sliding sleeve assembly (12).

8. The driving device for a beam-changing turnout according to any one of claims 2-6, wherein the driving assembly (2) comprises a cylinder base (21), an electric cylinder (22) arranged on the cylinder base (21) and a push rod (23) arranged on the electric cylinder (22), one end of the push rod (23) is fixed on the sliding sleeve assembly (12), the other end of the push rod (23) is connected with the electric cylinder (22), and the electric cylinder (22) is arranged at the end of the gantry beam (3) and is suitable for driving the push rod (23) to extend and retract so as to drive the sliding sleeve assembly (12) to slide on the gantry beam (3).

9. The drive device of a bridge-changing turnout according to claim 8, wherein the drive assembly (2) further comprises a push rod seat (24) arranged on the sliding sleeve assembly (12), and one end of the push rod (23) far away from the end connected with the electric cylinder (22) is detachably connected with the push rod seat (24).

10. A drive arrangement for a switch of the bridge-changing type as claimed in claim 9, wherein said drive assembly (2) further comprises a guide sleeve (25) provided with a guide groove, said guide sleeve (25) being fixed to said electric cylinder (22), and an end of said push rod (23) remote from the connection with said push rod seat (24) being adapted to slide in said guide groove.

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