Tooth entering mechanism of mountain rack rail train

Abstract

The tooth entering mechanism comprises a buffering section, a transition section and a positioning section, and the center line of the buffering section, the center line of the transition section and the center line of the positioning section coincide with the center line between steel rails. The buffer section is provided with a first vertical buffer mechanism and a first inclined buffer mechanism, the transition section is provided with a second vertical buffer mechanism and a second inclined buffer mechanism, the positioning section is provided with a third vertical buffer mechanism, and the mounting height of a first roller of the buffer section is gradually increased from the driving-in end of the buffer section to the driving-out end of the buffer section. The buffering section is used for buffering huge impact force generated during collision in the tooth entering process, impact on a vehicle is reduced, the gear is made to operate through interaction force, the operation speed of the gear is increased, the linear speed of the driving gear is made to be roughly the same as the running speed of the vehicle, and the phase angle of the gear is adjusted; the transition section serves as second protection to enable the gears which are not meshed correctly to be meshed with the second roller, and the positioning section serves as third protection to ensure the correct position of each gear and achieve gear entering.

Description

Technical Field

[0001] The invention relates to a track entry technology for a mountain rack rail vehicle, in particular to a gear entry mechanism for a mountain rack rail vehicle. Background Art

[0002] Cog railway is a rail transit system driven by gear and rack + steel wheel and rail. It is a transportation system serving mountain tourist attractions and passenger flow in major towns along the line. Its main feature is that a special rack is laid in the middle of the track. Cog railway vehicles are generally equipped with two transmission systems, wheel-rail drive and rack-rail drive. When running on straight and small slope lines, wheel-rail adhesion drive is adopted, and when running on large slope lines, rack-rail meshing drive is adopted. Therefore, during the operation of the cog railway train, there is a switching operation between the rack area and the wheel-rail area, that is, the operation of "entering teeth" and "exiting teeth". The gear entry of the rack railway is to switch from the wheel-rail drive of the cog railway train to the rack-rail drive without stopping the whole process. During the switching process, the state of the driving gear is adjusted by the force with the vehicle gear. Therefore, it is very important to design a gear entry mechanism with high safety and reduce the impact on the cog railway train during the gear entry process for the correct meshing of the cog railway vehicle and the cog railway. Summary of the invention

[0003] In view of this, the present invention proposes a gear-engaging mechanism for a mountain rack railway train, which can realize the precise gear-engaging of the rack railway train, and can also well absorb the force generated during the gear-engaging process to reduce collisions.

[0004] To achieve the above object, the present invention adopts the following technical solutions: The gear-entry mechanism of the mountain rack train of the present invention comprises a buffer section, a transition section and a positioning section arranged in sequence in a foundation pit, wherein the buffer section, the transition section and the positioning section are located between the steel rails of the rack train, and the center lines of the buffer section, the transition section and the positioning section coincide with the center line between the steel rails; The buffer section has a first vertical buffer mechanism and a first inclined buffer mechanism, the transition section has a second vertical buffer mechanism and a second inclined buffer mechanism which are arranged at intervals, the positioning section has a third vertical buffer mechanism, and the inclination directions of the first inclined buffer mechanism and the second inclined buffer mechanism are opposite to the travel direction of the rack vehicle; The buffer section has first rollers arranged at equal intervals, the installation height of the first rollers gradually increases from the entry end of the buffer section to the exit end thereof, and the center distance of the first rollers is greater than the base circle pitch of the gears of the rack vehicle; the transition section has a plurality of second rollers arranged at equal intervals and with the same installation height, and the installation height of the second rollers is consistent with the height of the first rollers at the exit end of the buffer section; The positioning section has a transmission rack meshing with a driving gear of the rack vehicle, the transmission rack has a plurality of first teeth with the same tooth top height and a second tooth located at the entry end, the height of the second tooth increases sequentially from the entry end to the exit end, and the first teeth and the second teeth are arranged with equal tooth pitch.

[0005] The beneficial effects are as follows: the present invention utilizes the buffer section to buffer the huge impact force generated when the gear and the first roller contact and collide during the gear entry process, thereby reducing the impact on the vehicle, and the gear is operated by the interaction force between the first roller and the gear of the rack rail vehicle, and the operating speed of the gear is increased, so that the linear speed of the driving gear is roughly the same as the vehicle driving speed; the second roller of the transition section can further adjust the gear, so that the teeth of the gear that is not properly meshed are meshed with the second roller, thereby ensuring the meshing of the gear and the rack rail; the positioning section serves as the third line of protection. If the state of the gear is still not adjusted after the rack rail vehicle passes through the transition section, the teeth of the driving-in end of the positioning section are cut off and the height is gradually increased, and a third vertical buffer mechanism is provided below the driving-in end of the positioning section, which can further ensure the correct position of each gear and realize gear entry.

[0006] In addition, the present invention is provided with a vertical buffer mechanism in each section, and an inclined buffer mechanism is provided in the buffer section and the transition section. The movable part of the third correction beam of the positioning section can float up and down, which can absorb the vertical force and longitudinal force generated during the tooth entry process, and transmit them to the foundation through the base, thereby reducing the impact on the rack train.

[0007] Preferably, the buffer section includes a first base arranged in the foundation pit and a first correction beam arranged above the first base, the first correction beam and the first base are bufferingly connected through the first vertical buffer mechanism and the first inclined buffer mechanism; a plurality of the first rollers are installed on the first correction beam at equal intervals.

[0008] The buffer section also includes a connection structure for mounting the first roller on the first correction beam, wherein the connection structure includes a pair of mounting plates vertically arranged on the first correction beam and a plurality of rollers spaced apart between the two mounting plates, each of the rollers being sleeved with a first roller.

[0009] Preferably, the first vertical buffer mechanism, the second vertical buffer mechanism and the third vertical buffer mechanism have the same structure, the first vertical buffer mechanism comprises a lower fixing seat, a connecting bolt and a vertical buffer member sleeved on the connecting bolt, the lower part of the connecting bolt is connected to the lower fixing seat through a lower buffer assembly, the upper part of the connecting bolt is connected to the first correction beam through an upper buffer assembly, the vertical buffer member and the connecting bolt are arranged with a gap, the two ends of the vertical buffer member are provided with a first pressing plate, and the mounting heads of the two first pressing plates are inserted into the vertical buffer member. In actual installation, the vertical buffer member is preferably a rubber spring for absorbing impact force.

[0010] More preferably, the upper buffer assembly and the lower buffer assembly have the same structure, the lower buffer assembly includes a lower spherical washer and an upper spherical washer sleeved on the connecting bolt, the lower spherical washer and the upper spherical washer are symmetrically arranged on both sides of the lower fixing seat, the upper part of the lower fixing seat also has an upper buffer block matched with the upper spherical washer, and a lower buffer block matched with the lower spherical washer is arranged between the lower part of the lower fixing seat and the lower spherical washer. The upper buffer assembly and the lower buffer assembly of the present invention both use spherical washers, which have a certain buffering effect.

[0011] Preferably, the first tilt buffer mechanism and the second tilt buffer mechanism have the same structure, the first tilt buffer mechanism comprises a lower hinge seat fixed on the first base, an inclined mounting shaft and a tilt buffer sleeved on the mounting shaft, the tilt buffer and the mounting shaft are provided with a gap, and a pair of second pressing plates are provided at both ends of the tilt rubber spring, the plugs at the center of the two second pressing plates are inserted into the tilt rubber spring, the lower part of the mounting shaft is hinged on the lower hinge seat, and the upper part of the mounting shaft is hinged on the first correction beam. The tilt buffer is preferably a rubber spring, which buffers the force between the gear and the roller of the rack car.

[0012] More preferably, a first pin is rotatably arranged on the lower articulated seat, and the mounting shaft obliquely passes through the first pin from top to bottom; an upper articulated seat is arranged at the bottom of the first correction beam, and the upper articulated seat has a horizontally arranged second pin, and the upper end of the mounting shaft passes through the second pin and is screwed with an upper nut; a spherical washer and a buffer block cooperating with the spherical washer are arranged on the mounting shaft located between the upper nut and the second pin and on the mounting shaft located below the first pin.

[0013] Preferably, the positioning section includes a third correction beam, the transmission rack is coaxially arranged on the third correction beam through a plurality of supports, the supports include a pair of L-shaped fixing plates and fixing bolts passing through the L-shaped fixing plates; the third correction beam is a split structure, which includes a fixed part and a movable part, the fixed part has a pair of hinged plates, one end of the movable part is hinged to the hinged plates through a hinge shaft; the upper part of the third vertical buffer mechanism is connected to the entry end of the movable part. The beneficial effect is that the entry end of the movable part of the third correction beam of the present invention is supported by the vertical buffer mechanism, and the other end of the movable part is hinged, so that the movable part can be adjusted in the up and down direction with the hinge point as the center under force, further ensuring the meshing of the rack and the gear.

[0014] Preferably, a plurality of columns are arranged at intervals on the inner side of each of the rails, a first protective block is arranged on the upper part of each of the columns, a positioning steel plate arranged along the length direction of the rail is arranged on the upper part of the buffer section, the transition section and the positioning block, and a gap is arranged between the positioning steel plate and the plurality of the first protective blocks; The exit end of the buffer section, the entry end and the exit end of the transition section are all provided with a second protective block, a third protective block is provided on the buffer section corresponding to each of the first inclined buffer mechanisms, and a fourth protective block is provided on the transition section corresponding to each of the second inclined buffer mechanisms. The first protective block, the second protective block, the third protective block and the fourth protective block of the present invention are preferably rubber blocks, the first protective block effectively avoids collision with the rail due to the interaction force between the present invention and the gear during the tooth entry process; the second protective block and the third protective block can avoid rigid collision at the joints between the sections; the fourth protective block protects the inclined buffer mechanism.

[0015] Compared with the prior art, the present invention uses a buffer section to buffer the huge impact force generated when the gear and the first roller contact and collide during the gear insertion process, thereby reducing the impact on the vehicle. The gear is driven by the interaction force between the first roller and the gear of the rack vehicle, and the running speed of the gear is increased, so that the linear speed of the driving gear is roughly the same as the running speed of the vehicle, and the phase angle of the gear is adjusted to lay a foundation for gear insertion. The second roller of the transition section can further adjust the gears so that the teeth of the gears that are not properly meshed can mesh with the second roller, thereby ensuring the meshing of the gears and the rack and pinion; the positioning section serves as the third line of protection. If the gears of the rack and pinion vehicle are still not adjusted properly after passing through the transition section, the teeth of the entry end of the positioning section are cut off and the height gradually increases. A third vertical buffer mechanism is provided below the entry end of the positioning section, which can further ensure the correct position of each gear and achieve tooth entry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 yes Figure 1 Top view of the .

[0018] Figure 3 It is a schematic diagram of the buffer section of the present invention.

[0019] Figure 4 yes Figure 3 Top view of the .

[0020] Figure 5 It is a side view of the buffer section of the present invention.

[0021] Figure 6 It is a schematic diagram of the first vertical buffer mechanism of the present invention.

[0022] Figure 7 Schematic diagram of the first tilt buffer mechanism of the present invention.

[0023] Figure 8 It is a schematic diagram of a transition section in the present invention.

[0024] Fig. 9 It is a schematic diagram of the positioning section of the present invention.

[0025] Fig.10 yes Fig. 9 Top view of the .

[0026] Fig.11 It is a side view of the positioning section of the present invention.

[0027] Fig.12 It is a schematic diagram of the fixing portion of the first correction beam of the present invention. DETAILED DESCRIPTION

[0028] The following is a detailed description of the embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment. Figure 1 Right to left in .

[0029] It should be noted that, in the description of the present invention, relational terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1-4As shown in 8-10, the mountain rack train gear entry mechanism of the present invention comprises a foundation pit (the foundation pit is located at the entry end of the rack of the rack car) and a buffer section 1, a transition section 2 (two sections in the present invention, of course, it can also be one section or more than three sections) and a positioning section 3 arranged in the foundation pit in sequence from the entry end to the exit end. The buffer section 1, the transition section 2 and the positioning section 3 are located between two rails 4 of the rack car (the rails are located in the foundation pit), and the center lines of the buffer section 1, the transition section 2 and the positioning section 3 coincide with the center line between the rails 4, and the positioning section 3 is connected with the rack of the rack car; the buffer section 1 has a first vertical buffer mechanism 1.1 and a first inclined buffer mechanism 1.2, the transition section 2 has a second vertical buffer mechanism 2.1 and a second inclined buffer mechanism 2.2 arranged at intervals, the positioning section 3 has a third vertical buffer mechanism 3.1, the first inclined buffer mechanism 1.2 and the second inclined buffer mechanism 2.3 are arranged at intervals, and the positioning section 3 has a third vertical buffer mechanism 3.1. .2 is in the opposite direction to the travel direction of the rack car; the multiple inclined buffer mechanisms and multiple vertical buffer mechanisms of the present invention can buffer the impact force received by the rack car during the gear entry process, thereby protecting the gear of the rack car; the buffer section 1 has first rollers 1.3 arranged at equal intervals, and the center distance of the first rollers 1.3 is greater than the base circle pitch of the gear of the rack car. The installation height of the first roller 1.3 gradually increases from the entry end to the exit end of the buffer section 1. The first roller 1.3 can be used to collide with the gear of the rack car or to roll the first roller 1.3 to adjust the phase angle of the gear teeth, so that the first roller 1.3 enters the wheel groove of the gear, laying the foundation for the meshing of the gear and the rack; in addition, because the center distance of the first roller 1.3 is greater than the base circle pitch of the gear, when a top tooth appears, the rear gears after a number of consecutive top teeth under the action of the buffer mechanism will mesh correctly with the rack; The transition section 2 has a plurality of second rollers 2.3 which are arranged at equal intervals and have the same installation height. The installation height of the second roller 2.3 is consistent with the height of the first roller 1.3 at the exit end of the buffer section 1, so that the phase angle of the gear is adjusted to an ideal state; the positioning section 3 has a transmission rack 3.2 meshing with the driving gear of the rack car, and the transmission rack 3.2 has a plurality of first teeth 3.2a with the same tooth top height and a second tooth 3.2b located at the entry end, and the height of the second tooth 3.2b increases from the entry end to the exit end, and the first teeth 3.2a and the second teeth 3.2b are arranged with equal tooth pitches, and the first teeth 3.2a are connected with the rack rail to ensure the entry of the rack rail car. In addition, the second teeth 3.2b are essentially the top of the first teeth 3.2a. When the top teeth occur, the gear can be adjusted more quickly to further ensure the entry of the teeth.

[0032] In actual operation, the present invention uses the buffer section 1 to buffer the huge impact force generated when the gear and the first roller 1.3 contact and collide during the gear insertion process, thereby reducing the impact on the vehicle. The gear is driven by the interaction force between the first roller 1.3 and the gear of the rack vehicle, and the gear running speed is increased, so that the linear speed of the driving gear is roughly the same as the vehicle running speed, and the phase angle of the gear is adjusted to lay a foundation for the gear insertion. The second roller 2.3 of the transition section 2 can further adjust the gears so that the teeth of the gears that are not properly meshed are meshed with the second roller 2.3, thereby ensuring the meshing of the gears and the rack and pinion; the positioning section 3 serves as the third line of protection. If the rack and pinion vehicle still has gears that are not adjusted properly after passing through the transition section 2, the teeth at the entry end of the positioning section 3 are designed with a chamfered top and the height is gradually increased, and a third vertical buffer mechanism 3.1 is provided below the entry end of the positioning section 3, which can further ensure the correct position of each gear and achieve tooth entry.

[0033] During the actual installation, the positioning section 3, buffer section 1 and transition section 2 are all placed in the foundation pit with clearances matched to ensure the connection between the sections. Figure 3-5 It can be seen that the buffer section 1 includes a first base 1.4 arranged in the foundation pit, a first correction beam 1.5 arranged above the first base 1.4 and a connecting structure. The first base 1.4 includes support channel steels 1.4a arranged at intervals and support steel plates 1.4b welded on multiple support channel steels 1.4a. The first correction beam 1.5 is erected above the support steel plate 1.4b through four (evenly spaced along the length direction, or six or eight, etc.) first vertical buffer mechanisms 1.1 and two (of course, three or more) first inclined buffer mechanisms 1.2. The first correction beam 1.5 is made of steel plate; the connecting structure includes a pair of vertically arranged mounting plates 1.6a (the mounting plates 1.6a are parallel to the first correction beam 1.5) and a plurality of rollers 1.6b equidistantly arranged between the two mounting plates 1.6a, and each roller 1.6b is provided with a first roller 1.3 through a bearing sleeve to ensure that the first roller 1.3 can rotate relatively. The height of the roller 1.6b between the mounting plates 1.6a gradually increases from right to left, ensuring that the height of the first roller 1.3 gradually increases from right to left.

[0034] The bottom of the first correction beam 1.5 has a reinforcing plate consistent with its length direction and reinforcing ribs arranged on the reinforcing plate. Four first vertical buffer mechanisms 1.1 are located at the four corners of the first correction beam 1.5. The upper part of each first vertical buffer mechanism 1.1 is connected to the first correction beam 1.5. The two first vertical buffer mechanisms 1.1 at each end of the first correction beam 1.5 form a pair; two first inclined buffer mechanisms 1.2 are arranged at intervals below the middle area of ​​the first correction beam 1.5, and the upper part of the first inclined buffer mechanism 1.2 is connected to the reinforcing plate.

[0035] Combination Figure 1-2 It can be seen that the second base 2.5 of the transition section 2 has the same structure as the first base 1.4, the second correction beam 2.4 of the transition section 2 has the same structure as the first correction beam 1.5, each transition section 2 has four second vertical buffer mechanisms 2.1 located at the four corners of the second correction beam 2.4, and each transition section 2 has two second inclined buffer mechanisms 2.2, and the two second inclined buffer mechanisms 2.2 are evenly spaced below the second correction beam 2.4.

[0036] Combination Figure 1-2 It can be seen that the third base 3.3 of the positioning section 3 has the same structure as the first base 1.4, and a pair of third vertical buffer mechanisms 3.1 are arranged below the driving end of the third correction beam 3.4 on the third base 3.3.

[0037] In actual installation, the first vertical buffer mechanism 1.1, the second vertical buffer mechanism 2.1 and the third vertical buffer mechanism 3.1 of the present invention have the same structure. The first vertical buffer mechanism 1.1 is described in more detail below: Figure 6 It can be seen that a base plate 1.4c is arranged on the supporting steel plate 1.4b, and the first vertical buffer mechanism 1.1 is arranged on the base plate 1.4c, including a lower fixing seat 1.1a, a connecting bolt 1.1b (using a long bolt) and a vertical buffer member (i.e., a vertical rubber spring 1.1c) sleeved on the connecting bolt 1.1b, the lower fixing seat 1.1a is fixed on the base plate by bolts, the vertical rubber spring 1.1c and the connecting bolt 1.1b are arranged with a gap, and the two ends of the vertical rubber spring 1.1c are provided with a first pressing plate 1.1d, the annular surface of the first pressing plate 1.1d is pressed on the end surface of the vertical rubber spring 1.1c, and the mounting head in the middle of the first pressing plate 1.1d is inserted into the vertical rubber spring 1.1c; Combination Figure 6It can be seen that a lower buffer assembly is provided at the first pressure plate 1.1d at the lower part of the connecting bolt 1.1b and the head of the connecting bolt 1.1b, the upper part of the connecting bolt 1.1b passes through the first correction beam 1.5 upward and is screwed with a tightening nut, and an upper buffer assembly is provided between the first pressure plate 1.1d at the upper part of the connecting bolt 1.1b and the tightening nut, and the structures of the upper buffer assembly and the lower buffer assembly are the same. Take the following buffer assembly as an example: the lower buffer assembly includes a lower spherical washer 1.1e and an upper spherical washer 1.1f which are sleeved on the connecting bolt 1.1b. The lower spherical washer 1.1e and the upper spherical washer 1.1f are symmetrically arranged on both sides of the lower fixed seat 1.1a. The upper part of the lower fixed seat 1.1a also has an upper buffer block 1.1g which cooperates with the upper spherical washer 1.1f (the mating surface of the upper buffer block 1.1g cooperates with the circumferential surface of the upper spherical washer 1.1f), and a lower buffer block 1.1h which cooperates with the lower spherical washer 1.1e is arranged between the lower part of the lower fixed seat 1.1a and the lower spherical washer 1.1e (the mating surface of the lower buffer block 1.1h cooperates with the circumferential surface of the lower spherical washer 1.1e). The lower buffer assembly and the upper buffer assembly have a certain vertical buffering effect. Combined with the vertical rubber spring 1.1c, they can absorb vertical force and vibration energy, reduce the influence of the buffer section 1 on the gear during the tooth entry process, and protect the gear.

[0038] In actual installation, the first tilt buffer mechanism 1.2 and the second tilt buffer mechanism 2.2 of the present invention have the same structure. The first tilt buffer mechanism 1.2 is described in more detail below: Figure 7 It can be seen that the first tilting buffer mechanism 1.2 includes a lower hinge seat 1.2a fixed on the first base 1.4, an inclined mounting shaft 1.2b and an inclined buffer member (i.e., an inclined rubber spring 1.2c) sleeved on the mounting shaft 1.2b, the inclined rubber spring 1.2c and the mounting shaft 1.2b are arranged with a gap, and a pair of second pressing plates 1.2d are arranged at both ends of the inclined rubber spring 1.2c, and the plugs at the centers of the two second pressing plates 1.2d are inserted into the inclined rubber spring 1.2c, the lower part of the mounting shaft 1.2b is hinged on the lower hinge seat 1.2a, the reinforcing plate is provided with an upper hinge seat 1.2e, and the upper part of the mounting shaft 1.2b is hinged on the upper hinge seat 1.2 e; wherein, a pair of vertical plates of the lower articulated seat 1.2a are arranged at intervals, a first pin shaft 1.2f is rotatably arranged between the two vertical plates, and a mounting shaft 1.2b (using a long bolt, which can be a double-headed or a single-headed) passes through the first pin shaft 1.2f from bottom to top and tilts upward; a horizontally arranged second pin shaft 1.2g is provided on the upper articulated seat 1.2e, and the upper end portion of the mounting shaft 1.2b passes through the middle portion of the second pin shaft 1.2g and is screwed with an upper nut 1.2h; a spherical washer and a buffer block cooperating with the spherical washer are provided on the mounting shaft 1.2b located between the upper nut 1.2h and the second pin shaft 1.2g, and on the mounting shaft 1.2b located below the first pin shaft 1.2f.

[0039] The tilting direction of each tilting buffer mechanism of the present invention is consistent, and they all extend tilted from the bottom to the driving end, that is, the tilting direction of the tilting buffer mechanism is opposite to the driving direction of the rack rail vehicle. When a top tooth occurs, the tilting buffer mechanism can be compressed laterally and can rotate around the hinge point, thereby absorbing the force generated by the top tooth.

[0040] Combination Figure 1-2 It can be seen that the buffer section 1, the transition section 2 and the positioning section 3 are set with gaps. In order to avoid rigid collision between the sections during the tooth entry process, the sections are protected by protective blocks (rubber blocks), that is, the second protective block F1 is set at the exit end of the buffer section 1, the entry end and the exit end of each transition section 2, and the second protective block F1 is a rubber block; in order to ensure the positioning and installation of the buffer section 1, the transition section 2 and the positioning section 3 in the foundation pit, the long edge of the first correction beam 1.5, the second correction beam 2.4 and the third correction beam 3.4 are all provided with a positioning steel plate F2, and the positioning steel plate F2 is made of cold-rolled U-shaped steel and is set laterally; in order to avoid collision between the buffer section 1, the transition section 2 and the positioning section 3 and the rail 4, two rows of columns F3 (using channel steel) are arranged at intervals in the foundation pit, and the two rows of columns F3 are respectively located on the inner side of the rail 4, and a first protective block F5 (preferably a rubber block) is arranged on each column F3, which can effectively avoid collision between the positioning steel plate F2 and the rail 4; Similarly, the tilt buffer mechanism can rotate along the hinge point. To avoid collision between the tilt buffer mechanism and the reinforcing rib, a third protective block F4 is provided below the first correction beam 1.5 corresponding to the first tilt buffer mechanism 1.2, and a fourth protective block F6 is provided below the second correction beam 2.4 corresponding to the second tilt buffer mechanism 2.2.

[0041] Combination Figure 9-12 It can be seen that the transmission rack 3.2 is arranged on the third correction beam 3.4 through a plurality of supports 3.5. The supports 3.5 include a pair of L-shaped fixing plates arranged back to back and fixing bolts passing through the L-shaped fixing plates. The lower part of the transmission rack 3.2 is fixed by the fixing bolts. The third correction beam 3.4 of the positioning section 3 is a split structure, which includes a fixed part 3.4a and a movable part 3.4b. The fixed part 3.4a has a pair of hinged plates 3.4a1. The left end of the movable part 3.4b is hinged to the hinged plate 3.4a1 through a hinge shaft. The upper part of the third vertical buffer mechanism 3.1 is connected to the entry end of the movable part 3.4b. The entry end of the movable part 3.4b is supported by the vertical buffer mechanism. The other end of the movable part 3.4b is hinged to the fixed part 3.4a, so that the movable part 3.4b is adjusted in the up and down direction with the hinge point as the center when subjected to force, further ensuring the meshing of the rack and the gear.

[0042] The working principle of the present invention is as follows: when the rack rail vehicle enters the buffer section 1, the gear on the rack rail vehicle is pressed on the first correction beam 1.5, and the gear applies vertical and longitudinal forces to the buffer section 1. At this time, the first vertical buffer mechanism 1.1 absorbs the vertical force, and the first inclined buffer mechanism 1.2 absorbs the longitudinal force, and then transmits it to the foundation through the first base 1.4; when entering the buffer section 1, the linear speed of the gear is quite different from the vehicle's running speed, and the first roller 1.3 with a gradually increasing height can effectively increase the running speed of the gear, so that the linear speed of the driving gear is roughly the same as the vehicle's running speed, and adjust the phase angle of the gear to lay the foundation for tooth entry; in addition, the center distance of the first roller 1.3 is greater than the base circle pitch of the gear. When there is When the top teeth are applied, several rear gears with continuous top teeth will mesh correctly with the rack; the rack car often has multiple gears, and the function of the transition section 2 is to allow the gears that are not properly meshed to mesh correctly with the rack after adjustment by the transition section 2. Since the center distance of the second roller 2.3 is greater than the base circle pitch of the gear, when the top teeth appear on individual gears, several rear gears with continuous top teeth will mesh correctly with the rack; the positioning section 3 serves as the third line of protection. If the rack car still has gears that are not adjusted after passing the transition section 2, the teeth at the entry end of the positioning section 3 are cut and the height is gradually increased, and a third vertical buffer mechanism 3.1 is provided below the entry end of the positioning section 3, which can further ensure the correct position of each gear and achieve tooth engagement.

[0043] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear-entry mechanism for a mountain rack train, characterized in that: It comprises a buffer section, a transition section and a positioning section which are sequentially arranged in the foundation pit, wherein the buffer section, the transition section and the positioning section are located between the steel rails of the rack rail vehicle, and the center lines of the buffer section, the transition section and the positioning section coincide with the center line between the steel rails; The buffer section has a first vertical buffer mechanism and a first inclined buffer mechanism, the transition section has a second vertical buffer mechanism and a second inclined buffer mechanism which are arranged at intervals, the positioning section has a third vertical buffer mechanism, and the inclination directions of the first inclined buffer mechanism and the second inclined buffer mechanism are opposite to the travel direction of the rack vehicle; The buffer section has first rollers arranged at equal intervals, the installation height of the first rollers gradually increases from the entry end of the buffer section to the exit end thereof, and the center distance of the first rollers is greater than the base circle pitch of the gears of the rack vehicle; the transition section has a plurality of second rollers arranged at equal intervals and with the same installation height, and the installation height of the second rollers is consistent with the height of the first rollers at the exit end of the buffer section; The positioning section has a transmission rack meshing with a driving gear of the rack vehicle, the transmission rack has a plurality of first teeth with the same tooth top height and a second tooth located at the entry end, the height of the second tooth increases sequentially from the entry end to the exit end, and the first teeth and the second teeth are arranged with equal tooth pitch.

2. The gear insertion mechanism of a mountain rack railway train according to claim 1, characterized in that: The buffer section includes a first base arranged in a foundation pit and a first correction beam arranged above the first base. The first correction beam and the first base are buffer-connected through the first vertical buffer mechanism and the first inclined buffer mechanism; a plurality of the first rollers are installed on the first correction beam at equal intervals.

3. The gear insertion mechanism of a mountain rack train according to claim 2, characterized in that: The buffer section also includes a connection structure for mounting the first roller on the first correction beam, wherein the connection structure includes a pair of mounting plates vertically arranged on the first correction beam and a plurality of rollers spaced apart between the two mounting plates, each of the rollers being sleeved with a first roller.

4. The gear insertion mechanism of a mountain rack train according to claim 2, characterized in that: The structures of the first vertical buffer mechanism, the second vertical buffer mechanism and the third vertical buffer mechanism are the same. The first vertical buffer mechanism includes a lower fixed seat, a connecting bolt and a vertical buffer member sleeved on the connecting bolt. The lower part of the connecting bolt is connected to the lower fixed seat through a lower buffer assembly, and the upper part of the connecting bolt is connected to the first correction beam through an upper buffer assembly. A gap is set between the vertical buffer member and the connecting bolt. First pressure plates are set at both ends of the vertical buffer member, and the mounting heads of the two first pressure plates are inserted into the vertical buffer member.

5. The gear insertion mechanism of a mountain rack train according to claim 4, characterized in that: The upper buffer assembly and the lower buffer assembly have the same structure. The lower buffer assembly includes a lower spherical washer and an upper spherical washer which are sleeved on the connecting bolt. The lower spherical washer and the upper spherical washer are symmetrically arranged on both sides of the lower fixed seat. The upper part of the lower fixed seat also has an upper buffer block which cooperates with the upper spherical washer. A lower buffer block which cooperates with the lower spherical washer is arranged between the lower part of the lower fixed seat and the lower spherical washer.

6. The gear insertion mechanism of a mountain rack train according to claim 2, characterized in that: The structures of the first tilt buffer mechanism and the second tilt buffer mechanism are the same; the first tilt buffer mechanism includes a lower hinged seat fixed on the first base, an inclined mounting shaft and a tilt buffer member sleeved on the mounting shaft, a gap is set between the tilt buffer member and the mounting shaft, and a pair of second pressure plates are set at both ends of the tilt rubber spring, and the plugs at the centers of the two second pressure plates are inserted into the tilt rubber spring, the lower part of the mounting shaft is hinged on the lower hinged seat, and the upper part of the mounting shaft is hinged on the first correction beam.

7. The gear insertion mechanism of a mountain rack train according to claim 6, characterized in that: A first pin is rotatably arranged on the lower hinge seat, and the installation shaft obliquely passes through the first pin from top to bottom; an upper hinge seat is arranged at the bottom of the first correction beam, and a second pin is horizontally arranged on the upper hinge seat, and the upper end of the installation shaft passes through the second pin and is screwed with an upper nut; a spherical washer and a buffer block cooperating with the spherical washer are arranged on the installation shaft located between the upper nut and the second pin and on the installation shaft located below the first pin.

8. The gear insertion mechanism of a mountain rack railway train according to claim 1, characterized in that: The positioning section includes a third correction beam, the transmission rack is coaxially arranged on the third correction beam through a plurality of supports, and the supports include a pair of L-shaped fixing plates and fixing bolts passing through the L-shaped fixing plates; The third correction beam is a split structure, which includes a fixed part and a movable part. The fixed part has a pair of hinged plates, and one end of the movable part is hinged to the hinged plates through a hinge shaft; the upper part of the third vertical buffer mechanism is connected to the driving-in end of the movable part.

9. The gear insertion mechanism of a mountain rack train according to claim 1, characterized in that: A plurality of columns are arranged at intervals on the inner side of each rail, a first protective block is arranged on the upper part of each column, a positioning steel plate arranged along the length direction of the rail is arranged on the upper part of the buffer section, the transition section and the positioning block, and a gap is arranged between the positioning steel plate and the plurality of the first protective blocks; The exit end of the buffer section, the entry end and the exit end of the transition section are all provided with a second protective block, a third protective block is provided on the buffer section corresponding to each of the first inclined buffer mechanisms, and a fourth protective block is provided on the transition section corresponding to each of the second inclined buffer mechanisms.

Images