The fixed structure of the rack cylinder of the car shifting machine and the cantilever lifting system

Abstract

The present invention relates to a fixed structure of a rack cylinder of a car shifting machine and a cantilever lifting system, and belongs to the technical field of car shifting machines. The invention comprises: a rack cylinder, a moment arm, a through shaft, a pull rod, a base, and a main steel structure body; one end of the through shaft is connected to the rack cylinder, and the other end is connected to a fixed bearing seat, and the fixed bearing seat is connected to the main steel structure body by bolts; the top of the moment arm is sleeved on the position of the through shaft close to the rack cylinder, and the moment arm is fixedly connected to the rack cylinder by bolts; the tail of the moment arm is connected to a pull rod, and the pull rod is connected to the main steel structure body through a base; the fixing method of the rack cylinder of the car shifting machine is reasonably optimized by fixing the moment arm, and the rack cylinder is fixed by the moment arm and the through shaft, so that the rack cylinder is in a suspended state, which ensures that the center of the rack cylinder is accurate, safe and reliable, and greatly increases the safety and stability of the equipment.

Description

Technical Field

[0001] The invention relates to a rack cylinder fixing structure of a car shifting machine and a cantilever lifting system, belonging to the technical field of car shifting machines. Background Art

[0002] There are two main ways to fix the rack cylinder of the existing car shifting machine: the first way is that the rack cylinder and the base plate are connected by bolts, and the base plate is fixed with bolts to the main car shifting machine. The second way is that the rack cylinder and the connecting seats on both sides are fixed with bolts respectively, and the connecting seats on both sides are fixed with bolts to the main car shifting machine.

[0003] Method 1 and method 2 are contact fixing methods, and have the following problems:

[0004] 1. The base and the main body of the car shifter are fixed with bolts. The output shaft and the coupling need to be aligned, centered, and gasketed. There is a deviation.

[0005] 2. There is no buffer structure during operation, resulting in large vibration and easy damage.

[0006] 3. The fixing bolts are subject to great force and require a torque wrench for tightening, which requires high tool requirements and is difficult to operate. The main steel structure is also subjected to excessive force due to long-term operation.

[0007] 4. The output shaft needs to add a coupling to connect the coupling and the rack cylinder, which increases production costs. It takes up a lot of space and has a great impact on the production cost and production time of the enterprise. It is not conducive to subsequent inspection and maintenance. Summary of the invention

[0008] In view of the problems existing in the existing fixing method of the rack cylinder of the car pusher, the purpose of the present invention is to provide a fixing structure of the rack cylinder of the car pusher and a cantilever lifting system, which adopts the method of fixing the rack cylinder with a moment arm to achieve reasonable optimization, thereby realizing the lifting and lowering of the cantilever of the car pusher.

[0009] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: a fixed structure of a rack cylinder of a car shifting machine, comprising: a rack cylinder, a moment arm, a through shaft, a pull rod, a base, and a main steel structure body; one end of the through shaft is connected to the rack cylinder, and the other end is connected to a fixed bearing seat, and the fixed bearing seat is connected to the main steel structure body by bolts; the top of the moment arm is sleeved on the position of the through shaft close to the rack cylinder and the moment arm is fixedly connected to the rack cylinder by bolts; the tail of the moment arm is connected to a pull rod, and the pull rod is connected to the main steel structure body through a base; the moment arm and the through shaft are used to fix the rack cylinder, so that the rack cylinder is in a suspended state to ensure the accuracy of the center in the rack cylinder;

[0010] Furthermore, the rack cylinder is in the form of an inner hole, the through shaft cooperates with the inner hole of the rack cylinder, and the through shaft and the rack cylinder are connected in a spline manner;

[0011] Furthermore, the method of directly connecting the through shaft and the rack cylinder is simpler in structure and more convenient in maintenance than the traditional method of connecting the coupling and the rack cylinder.

[0012] Furthermore, the tail of the moment arm is connected to one end of the pull rod through a first pin, and the other end of the pull rod is fixedly connected to the base through a second pin;

[0013] Furthermore, the base and the main steel structure body are fixed by welding;

[0014] Furthermore, one end of the rack cylinder close to the tail of the moment arm is the A chamber for oil inlet, and one end of the rack cylinder away from the tail of the moment arm is the B chamber for oil inlet; by passing oil through the A chamber or the B chamber, the rack in the rack cylinder drives the gear to rotate and then transmits force to the through shaft, so that the rotation of the through shaft drives the moment arm to move, and the moment arm drives the pull rod to move;

[0015] In the linkage movement of the rack cylinder fixed structure mentioned above, the pull rod is deflected correspondingly with the movement direction of the moment arm;

[0016] The movement mode of the rack cylinder fixed structure of the above structure can play a buffering role during operation, reduce vibration, and prevent parts from being damaged; and avoid long-term operation causing excessive stress on the main steel structure.

[0017] Furthermore, the above rack cylinder fixing structure is applied to the cantilever lifting system of the car shifting machine, and the cantilever lifting system also includes: a movable arm, a connecting rod, and a lifting arm; the movable arm is connected to the through shaft near the side of the bearing seat, and a connecting rod is provided on the movable arm, one end of the connecting rod is connected to the movable arm, and the other end of the connecting rod is connected to the lifting arm through a pin shaft, and the lifting arm is located on the side of the main steel structure body away from the pull rod direction;

[0018] The working principle and process of the above cantilever lifting system are:

[0019] When the B chamber of the rack cylinder is filled with oil, the rack cylinder drives the through shaft to rotate clockwise, and then the through shaft drives the movable arm to rotate clockwise, so that the lifting arm can be lifted up under the drive of the connecting rod;

[0020] When oil enters cavity A of the rack cylinder, the rack cylinder drives the through shaft to rotate counterclockwise, and then the through shaft drives the movable arm to rotate counterclockwise, so that the lifting arm is driven by the connecting rod to move downward; the above complete process realizes the lifting process of the cantilever of the car shifting machine.

[0021] Furthermore, a balancing mechanism is also provided in the cantilever lifting system, and the balancing mechanism is provided to ensure the weight balance before and after the lifting arm; the balancing mechanism comprises: a fixed seat, a connecting shaft, a connecting rod a, a pin shaft, and a counterweight block; the fixed seat is provided on the main steel structure body and is located at the end of the movable arm away from the rack cylinder, one end of the connecting shaft is connected to the fixed seat, the other end of the connecting shaft is fixedly connected to the counterweight block, the fixed seat is connected to the connecting rod a, one end of the connecting rod a is connected to the fixed seat through a pin shaft, and the other end of the connecting rod a is connected to the lifting arm through a pin shaft; the lifting arm can be driven to rise and fall under the joint action of the connecting rod and the connecting rod a, thereby increasing the stability of the lifting arm during the lifting process;

[0022] Furthermore, the counterweight block is arranged outside the main steel structure body;

[0023] Furthermore, the connecting rod a and the connecting rod are arranged parallel to each other.

[0024] The beneficial effects of the present invention are:

[0025] The fixing method of the rack cylinder of the car-pulling machine is optimized by fixing the rack cylinder with a moment arm. The rack cylinder is fixed with a moment arm and a through shaft, so that the rack cylinder is in a suspended state, ensuring the center of the rack cylinder is accurate, safe and reliable, and greatly increasing the safety and stability of the equipment;

[0026] A through-shaft structure is adopted, and the through-shaft is directly connected to the inner hole rack cylinder, and the coupling is eliminated, so the structure is simpler and maintenance is more convenient; the complex mechanical structure is removed, and only the pull rod needs to be fixed to the main steel structure body. Due to the moment arm structure, the force borne by the main steel structure body is greatly reduced; the volume is small, the structure is simple, and maintenance is convenient; the defects of the existing rack cylinder fixing method are effectively solved and supplemented; the car pusher cantilever system using the rack oil cylinder fixing method of the present invention realizes the lifting and lowering of the car pusher cantilever. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a diagram showing the fixing structure of the rack cylinder of the present invention.

[0028] Figure 2 It is a top view of the rack cylinder fixing structure of the present invention.

[0029] Figure 3 It is a side view of the rack cylinder fixing structure of the present invention.

[0030] Figure 4 It is a structural diagram of the cantilever lifting system of the present invention.

[0031] Figure 5 for Figure 4 Side view of.

[0032] Figure 6 for Figure 4Front view of .

[0033] In the figure, 1, rack cylinder, 2, torque arm, 3, through shaft, 4, pull rod, 5, base, 6, main steel structure body, 7, fixed bearing seat, 8, first pin shaft, 9, second pin shaft, 10, movable arm, 11, connecting rod, 12, lifting arm, 13, connecting rod a, 14, counterweight block. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Example 1

[0036] like Figure 1-3 As shown, the fixed structure of the rack cylinder of the car shifting machine includes: a rack cylinder 1, a moment arm 2, a through shaft 3, a pull rod 4, a base 5, and a main steel structure body 6; one end of the through shaft 3 is connected to the rack cylinder 1, and the other end is connected to the fixed bearing seat 7, and the fixed bearing seat 7 is connected to the main steel structure body 6 by bolts; the top of the moment arm 2 is sleeved on the position of the through shaft 3 close to the rack cylinder 1, and the moment arm 2 is fixedly connected to the rack cylinder 1 by bolts; the tail of the moment arm 2 is connected to the pull rod 4, and the pull rod 4 is connected to the main steel structure body 1 through the base 5;

[0037] The rack cylinder 1 is in the form of an inner hole, the through shaft 3 matches the inner hole of the rack cylinder 1, and the through shaft 3 and the rack cylinder 1 are connected in a spline manner;

[0038] The tail of the moment arm 2 is connected to one end of the pull rod 4 through a first pin 8, and the other end of the pull rod 4 is fixedly connected to the base 5 through a second pin 9;

[0039] The base 5 is fixed to the main steel structure body 6 by welding;

[0040] The end of the rack cylinder 1 close to the tail direction of the moment arm 2 is the oil inlet chamber A, and the end of the rack cylinder 1 away from the tail direction of the moment arm 2 is the oil inlet chamber B; by passing oil through the A chamber or the B chamber, the rack in the rack cylinder 1 drives the gear to rotate and then transmits the force to the through shaft 3, so that the through shaft 3 rotates to drive the torque arm 2 to move, and the torque arm 2 drives the pull rod 4 to move.

[0041] Example 2

[0042] like Figure 4-6As shown, on the basis of Example 1, this embodiment adopts the above-mentioned rack cylinder fixing structure to be applied to the cantilever lifting system of the car shifting machine, and the cantilever lifting system also includes: a movable arm 10, a connecting rod 11, and a lifting arm 12; the movable arm 10 is connected to the through shaft 3 on the side close to the bearing seat 7, and the movable arm 10 is provided with a connecting rod 11, one end of the connecting rod 11 is connected to the movable arm 10, and the other end of the connecting rod 11 is connected to the lifting arm 12 through a pin shaft, and the lifting arm 12 is located on the side of the main steel structure body 6 away from the pull rod 4;

[0043] When the B chamber of the rack cylinder 1 is filled with oil, the rack cylinder 1 drives the through shaft 3 to rotate clockwise, and then the through shaft 3 drives the movable arm 10 to rotate clockwise, so that the lifting arm 12 is driven by the connecting rod 11 to rise;

[0044] When oil enters cavity A of rack cylinder 1, rack cylinder 1 drives shaft 3 to rotate counterclockwise, and then shaft 3 drives movable arm 10 to rotate counterclockwise, so that lifting arm 12 is driven by connecting rod 11 to move downward; the above complete process realizes the lifting process of cantilever of car shifting machine.

[0045] Example 3

[0046] like Figure 4-6 As shown, based on the lifting arm system of Example 2, this embodiment further provides a balancing mechanism in the lifting arm system, and the balancing mechanism is provided to ensure the weight balance of the front and rear of the lifting arm; except for the balancing mechanism, the other structures of this embodiment are the same as those of Example 2, and will not be described in detail in this embodiment;

[0047] The balancing mechanism of this embodiment includes: a fixed seat, a connecting shaft, a connecting rod a13, a pin shaft, and a counterweight 14; the fixed seat is arranged on the main steel structure body 6 and is located at the end of the movable arm 10 away from the rack cylinder 1, one end of the connecting shaft is connected to the fixed seat, the other end of the connecting shaft is fixedly connected to the counterweight 14, the fixed seat is connected to a connecting rod a13, one end of the connecting rod a13 is connected to the fixed seat through a pin shaft, and the other end of the connecting rod a13 is connected to the lifting arm 12 through a pin shaft; the lifting arm 12 can be driven to rise and fall by the joint action of the connecting rod 11 and the connecting rod a13, thereby increasing the stability of the lifting arm during the lifting process;

[0048] In this embodiment, the counterweight block 14 is arranged outside the main steel structure body 6; the connecting rod a13 and the connecting rod 11 are arranged parallel to each other.

[0049] Based on the above-mentioned embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. The fixed structure of the rack cylinder of the car shifting machine is characterized by: include: Rack cylinder, moment arm, through shaft, tie rod, base, main steel structure body; one end of the through shaft is connected to the rack cylinder, and the other end is connected to the fixed bearing seat, and the fixed bearing seat is connected to the main steel structure body by bolts; the top of the moment arm is sleeved on the position of the through shaft close to the rack cylinder, and the moment arm is fixedly connected to the rack cylinder by bolts; the tail of the moment arm is connected to the tie rod, and the tie rod is connected to the main steel structure body through the base; the rack cylinder is in the form of an inner hole, the through shaft matches the inner hole of the rack cylinder, and the through shaft and the rack cylinder adopt Spline connection; the tail of the moment arm is connected to one end of the pull rod through a first pin, and the other end of the pull rod is fixedly connected to the base through a second pin; the rack cylinder is fixed by the moment arm and the through shaft, so that the rack cylinder is in a suspended state; the end of the rack cylinder close to the tail of the moment arm is the oil inlet chamber A, and the end of the rack cylinder away from the tail of the moment arm is the oil inlet chamber B; by passing oil through the A chamber or the B chamber, the rack in the rack cylinder drives the gear to rotate and then transmits the force to the through shaft, so that the rotation of the through shaft drives the torque arm to move, and the moment arm drives the pull rod to move.

2. The rack cylinder fixing structure of the car shifting machine according to claim 1 is characterized in that: The base is fixed to the main steel structure body by welding.

3. A cantilever lifting system using the rack cylinder fixing structure according to claim 1 or 2, characterized in that: Also includes: Movable arm, connecting rod, lifting arm; the movable arm is connected to the through shaft close to the bearing seat, and a connecting rod is provided on the movable arm. One end of the connecting rod is connected to the movable arm, and the other end of the connecting rod is connected to the lifting arm through a pin shaft. The lifting arm is located on the side of the main steel structure body away from the pull rod direction.

4. The cantilever lifting system according to claim 3, characterized in that: The working principle and process of the cantilever lifting system are as follows: when the B chamber of the rack cylinder is filled with oil, the rack cylinder drives the through shaft to rotate clockwise, and then the through shaft drives the movable arm to rotate clockwise, so that the lifting arm can be lifted up under the drive of the connecting rod; When oil enters cavity A of the rack cylinder, the rack cylinder drives the through shaft to rotate counterclockwise, and then the through shaft drives the movable arm to rotate counterclockwise, so that the lifting arm is driven by the connecting rod to move downward; the above complete process realizes the lifting process of the cantilever of the car shifting machine.

5. The cantilever lifting system according to claim 4, characterized in that: A balancing mechanism is also provided in the cantilever lifting system, and the balancing mechanism includes: a fixed seat, a connecting shaft, a connecting rod a, a pin shaft, and a counterweight block; the fixed seat is arranged on the main steel structure body and is located at the end of the movable arm away from the rack cylinder, one end of the connecting shaft is connected to the fixed seat, and the other end of the connecting shaft is fixedly connected to the counterweight block, and the fixed seat is connected to a connecting rod a, one end of the connecting rod a is connected to the fixed seat through a pin shaft, and the other end of the connecting rod a is connected to the lifting arm through a pin shaft.

6. The cantilever lifting system according to claim 5, characterized in that: The counterweight block is arranged outside the main steel structure body.

7. The cantilever lifting system according to claim 5, characterized in that: The connecting rod a and the connecting rod are arranged parallel to each other.

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