Valve body claw structure of large railway maintenance machinery

Abstract

The utility model discloses a large railway maintenance machinery valve body claw structure, which belongs to the technical field of mechanical claws and comprises a connecting column and at least four clamping claws, the bottom end of the connecting column is connected with the clamping claws through hinge seats, and the clamping claws are distributed on the periphery of the bottom end of the connecting column at equal intervals. Adjusting mechanisms which are in one-to-one correspondence with the clamping claws and drive the clamping claws to rotate are arranged on the connecting column, and each adjusting mechanism comprises a strip-shaped connecting block and a hinge rod, wherein the strip-shaped connecting block is in sliding connection with the connecting column, one end of the strip-shaped connecting block horizontally extends to the outer side of the connecting column, one end of the hinge rod is rotationally arranged at the outer side end of the strip-shaped connecting block, and the other end of the hinge rod is rotationally connected with the outer side wall of the clamping claw. According to the valve body claw structure, the four clamping claws can be simultaneously adjusted at the same angle under the driving of the same driving mechanism, and due to the arrangement of the clamping claw driving structure, the manufacturing cost of the valve body claw structure is saved, and the electricity consumption of the valve body claw structure during working is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical claws, in particular to a valve body claw structure of a large-scale railway track maintenance machinery. Background Art

[0002] With the development of railways, high speed, heavy load and high density are its main characteristics, which aggravates the deformation of track structure, shortens the repair cycle, and makes the contradiction between line transportation and repair more and more prominent. Under such conditions, it is required to reduce the time occupied by line maintenance as much as possible. The only way out is to improve the operating efficiency of construction machinery. Therefore, the high efficiency of large-scale railway maintenance machinery has become an inevitable development. At present, mechanical claws are one of the indispensable equipment in large-scale railway maintenance machinery. Usually, mechanical claws are installed on mechanical arms and used with large-scale railway maintenance machinery.

[0003] Most of the existing mechanical claws used in large-scale railway maintenance machinery are composed of more than two clamping claws, and each clamping claw can only be rotated and adjusted through an independent driving mechanism. This will result in the need to simultaneously control multiple clamping claws during use to clamp the clamping part, which will result in high control accuracy requirements for the mechanical claw, high manufacturing costs for the mechanical claw, and more electricity consumption during the application process. Therefore, there is an urgent need to develop a valve body claw structure for large-scale railway maintenance machinery. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The utility model aims to provide a valve body claw structure for a large railway track maintenance machinery to solve the problems raised in the above-mentioned background technology.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the utility model adopts the following technical solutions:

[0008] The top end of the hinged cavity is connected to the top of the cavity, and the other end is connected with the external wall of the cavity to form a cavity with a circle, and the other end is connected with the external wall of the cavity to form a cavity with a circle.

[0009] The driving mechanism includes a cavity opened in the middle of the top of the connecting column and extending vertically downward, a screw rod rotatably arranged inside the cavity and with the top end extending vertically above the connecting column, and a motor fixedly installed on the top of the screw rod. The screw rod has a threaded adjustment with an annular sleeve block located on the inner side of the cavity, and one end of each of the strip-shaped connecting blocks located on the inner side of the connecting column is integrally formed with the annular sleeve block.

[0010] Preferably, a non-slip layer made of rubber material is adhered to the clamping end surface of each clamping claw.

[0011] Preferably, each of the strip-shaped connecting blocks is symmetrically provided with two limit blocks, and a strip-shaped slide groove 2 corresponding to the limit blocks one by one and for vertical sliding of the corresponding limit blocks is opened on the outer circumference of the connecting column, each of the limit blocks is connected to the strip-shaped slide groove 1 on the corresponding side, and each of the limit blocks is equipped with a roller in contact with the inner wall of the strip-shaped slide groove 2.

[0012] Preferably, the top end of the connecting column is connected to a mounting plate via a bracket, and the motor is mounted at the middle of the bottom end of the mounting plate.

[0013] Preferably, an extension column is formed at the bottom end of the connecting column, and an auxiliary mechanism corresponding to the clamping claws one by one and assisting the clamping claws in resetting is provided on the extension column.

[0014] Preferably, the auxiliary mechanism includes a sleeve rotatably arranged on the outer circumference of the extension column, a sliding rod slidably arranged on the inner side of the sleeve and rotatably connected to the clamping claw at its free end, a spring whose end is fixedly connected to the tail end of the sliding rod is installed inside each of the sleeves, a limiting slider is formed on the tail end of each sliding rod to prevent the sliding rod from derailing, and a limiting sliding groove slidably connected to the limiting slider is opened on the inner wall of each sleeve.

[0015] 3. Beneficial effects

[0016] 1. The utility model is provided with an annular sleeve block and a screw thread sleeve, an annular sleeve block and a strip connecting block are integrally formed, and the strip connecting block and the connecting column are slidably connected, so that when the screw rotates, the annular sleeve block can move up and down on the connecting column under the sliding between the strip connecting block and the connecting column, and the two ends of the hinged rod are respectively hingedly connected to the strip connecting block and the clamping claw, so that the clamping claw can adjust the rotation angle under the drive of the strip connecting block moving up and down. In order to enable the clamping claw to realize the rotation of the angle more stably and smoothly, the support rod whose two ends are respectively rotatably connected to the hinged rod and the connecting column can guide the hinged rod that is rotating, so that the clamping claw can rotate at a certain angle under the cooperation of the hinged rod and the support rod, thereby ensuring the clamping effect of the clamping claw;

[0017] In the present design application, at least four clamping claws are arranged at equal intervals on the connecting column. The number and position of the clamping claws enable the valve body claw structure to clamp the object at multiple positions at the same time, thereby improving the clamping effect of the valve body claw structure, and the four clamping claws can be adjusted to the same angle at the same time under the drive of the same driving mechanism. This setting of the clamping claw driving structure not only saves the manufacturing cost of the valve body claw structure, but also effectively reduces the power consumption of the valve body claw structure during operation.

[0018] 2. When the clamping claw of the utility model rotates an angle under the cooperation of the driving mechanism and the adjusting mechanism, the auxiliary mechanism can guide and cooperate with the clamping claw when the angle is rotating through the sliding connection between the sleeve and the slide rod and the rotational connection between the slide rod, the sleeve and the clamping claw and the extension column respectively, which is helpful for the rotation adjustment of the clamping claw. When the clamping claw is in the expanded state, the sleeve and the slide rod are extended as a whole, and the spring inside the sleeve is in a stretched state under the pulling of the slide rod. The elastic action of the spring can help the slide rod and the clamping claw to reset.

[0019] 3. When the strip connecting block slides on the connecting column, the utility model can improve the stability of the sliding between the strip connecting block and the connecting column through the connection between the limit block and the second strip sliding groove, and the rolling of the roller can make the strip connecting block and the limit block slide more smoothly on the connecting column. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0021] Figure 2 This is a schematic diagram of a partial internal structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the local structure from the top view of the connecting column;

[0023] Figure 4 It is a schematic diagram of the local structure when the connecting column is viewed upward;

[0024] Figure 5 This is a schematic diagram of the internal structure of the auxiliary mechanism.

[0025] Figure numerals: 1. connecting column; 2. clamping claw; 3. hinged seat; 4. strip connecting block; 5. hinged rod; 6. support rod; 7. cavity; 8. screw; 9. annular sleeve block; 10. strip slide groove 1; 11. motor; 12. bracket; 13. mounting plate; 14. limit block; 15. strip slide groove 2; 16. roller; 17. extension column; 18. auxiliary mechanism; 19. sleeve; 20. slide rod; 21. limit slider; 22. limit slide groove; 23. spring; 24. anti-slip layer. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Examples, such as Figure 1-5 A valve body claw structure of a large railway maintenance machinery shown in the figure comprises a connecting column 1 and a clamping claw 2. The bottom end of the connecting column 1 is connected to the clamping claw 2 through a hinge seat 3. The clamping claw 2 is provided with at least four and is evenly distributed on the outer circumference of the bottom end of the connecting column 1. An anti-skid layer 24 made of rubber material is adhered to the clamping end surface of each clamping claw 2. When the clamping claw 2 clamps an object, the anti-skid effect of the anti-skid layer 24 can be used to enhance the clamping effect of the clamping claw 2 on the clamped object. The connecting column 1 is provided with an adjustment mechanism that corresponds to the clamping claw 2 one by one and drives the clamping claw 2 to rotate;

[0028] The adjustment mechanism includes a strip connecting block 4 which is slidably connected to the connecting column 1 and one end of which extends horizontally to the outside of the connecting column 1, a hinge rod 5 which is rotatably arranged at the outer end of the strip connecting block 4 and the other end of which is rotatably connected to the outer wall of the clamping claw 2, and a strip sliding groove 10 which corresponds to the strip connecting block 4 one by one and allows the corresponding strip connecting block 4 to slide up and down is opened on the connecting column 1, and two limit blocks 14 are symmetrically arranged on each strip connecting block 4, and a corresponding limit block 1 is opened on the outer circumference of the connecting column 1. 4 vertically sliding strip slide groove 15, each limit block 14 is connected with the strip slide groove 10 on the corresponding side, and each limit block 14 is installed with a roller 16 in contact with the inner wall of the strip slide groove 15. When the strip connection block 4 slides on the connecting column 1, the connection between the limit block 14 and the strip slide groove 15 can improve the stability of the strip connection block 4 and the connecting column 1 when sliding, and the rolling of the roller 16 can make the strip connection block 4 and the limit block 14 slide on the connecting column 1 more smoothly;

[0029] Each hinged rod 5 is hinged with a support rod 6 on the side wall facing the connecting column 1, and the other end of each support rod 6 is rotatably connected to the outer side wall of the connecting column 1. The connecting column 1 is provided with a driving mechanism for driving the four clamping claws 2 to rotate simultaneously;

[0030] The driving mechanism includes a cavity 7 opened in the middle of the top of the connecting column 1 and extending vertically downward, a screw 8 rotatably arranged inside the cavity 7 and with the top extending vertically above the connecting column 1, and a motor 11 fixedly installed on the top of the screw 8. The screw 8 is threadedly adjusted with an annular sleeve block 9 located inside the cavity 7, and one end of each strip-shaped connecting block 4 located inside the connecting column 1 is integrally formed with the annular sleeve block 9;

[0031] The top of the connecting column 1 is connected to a mounting plate 13 through a bracket 12, and the motor 11 is mounted on the middle of the bottom end of the mounting plate 13. The mounting plate 13 can be used to facilitate people to install the valve body claw structure on large equipment.

[0032] An extension column 17 is formed at the bottom end of the connecting column 1, and an auxiliary mechanism 18 corresponding to the clamping claw 2 and assisting the clamping claw 2 in resetting is provided on the extension column 17. The auxiliary mechanism 18 includes a sleeve 19 rotatably arranged on the outer circumference of the extension column 17, a slide rod 20 slidably arranged on the inner side of the sleeve 19 and rotatably connected to the clamping claw 2 at its free end, a spring 23 is installed inside each sleeve 19 with an end fixedly connected to the tail end of the slide rod 20, a limiting slider 21 is formed on the tail end of each slide rod 20 to prevent the slide rod 20 from derailing, and a limiting slide groove 22 slidably connected to the limiting slider 21 is opened on the inner wall of each sleeve 19. When the clamp When the holding claw 2 is rotated at an angle under the cooperation of the driving mechanism and the adjusting mechanism, the auxiliary mechanism 18 can guide the clamping claw 2 during the angle rotation through the sliding connection between the sleeve 19 and the slide rod 20 and the rotational connection between the slide rod 20, the sleeve 19 and the clamping claw 2 and the extension column 17 respectively, which helps to adjust the rotation of the clamping claw 2. When the clamping claw 2 is in the expanded state, the sleeve 19 and the slide rod 20 are extended as a whole, and the spring 23 on the inside of the sleeve 19 is in a stretched state under the pulling of the slide rod 20. The elastic action of the spring 23 can help the slide rod 20 and the clamping claw 2 to be reset.

[0033] The specific application process of the valve body claw structure of the above-mentioned large-scale railway road maintenance machinery is as follows: when in use, first install the mounting plate 13 on the type road maintenance machine, and then move the valve body claw structure to the vicinity of the part to be clamped, and at the same time, through the positive rotation of the motor 11, drive the screw rod 8 to rotate positively on the inner side of the cavity 7. When the screw rod 8 rotates, it can be threadedly connected with the annular sleeve block 9, so that the annular sleeve block 9 can move downward on the screw rod 8 under the sliding of the strip connection block 4 and the strip slide groove 10. When the annular sleeve block 9 moves downward, it will drive the strip connection block 4 to move downward together. At this time, the two ends of the hinged rod 5 are respectively connected to the strip connection block 4 and the clamping claw 2 through the hinge connection, so that the clamping claw 2 is in the strip connection block 4 that moves up and down. The rotation angle can be adjusted under the drive of. In order to enable the clamping claw 2 to realize the rotation of the angle more stably and smoothly, the support rod 6 rotatably connected to the hinge rod 5 and the connecting column 1 at both ends can be used to guide the hinge rod 5 that is rotating, so that the clamping claw 2 can rotate at a certain angle under the cooperation of the hinge rod 5 and the support rod 6 to ensure the clamping effect of the clamping claw 2, and when the strip connecting block 4 slides on the connecting column 1, the connection between the limit block 14 and the strip slide groove 15 can be used to improve the stability of the sliding between the strip connecting block 4 and the connecting column 1, and the rolling of the roller 16 can make the strip connecting block 4 and the limit block 14 slide on the connecting column 1 more smoothly;

[0034] When all the clamping claws 2 are in an open state, the valve body claw structure is moved downward to clamp the clamped object. That is, when the clamping claws 2 are clamped, the motor 11 needs to be rotated, and the adjustment mechanism and the driving mechanism need to cooperate to realize the simultaneous closure of all the clamping claws 2, so as to achieve the clamping of the clamping object. When the clamping claws 2 clamp an object, the anti-slip effect of the anti-slip layer 24 can be used to enhance the clamping effect of the clamping claws 2 on the clamping object.

[0035] In addition, when the clamping claw 2 is rotated at an angle under the cooperation of the driving mechanism and the adjusting mechanism, the auxiliary mechanism 18 can also guide the clamping claw 2 when it is rotating at an angle through the sliding connection between the sleeve 19 and the slide rod 20 and the rotational connection between the ends of the slide rod 20 and the sleeve 19 and the clamping claw 2 and the extension column 17 respectively, thereby facilitating the rotational adjustment of the clamping claw 2, and when the clamping claw 2 is in an expanded state, the sleeve 19 and the slide rod 20 are extended as a whole. At this time, the spring 23 on the inside of the sleeve 19 is in a stretched state under the pull of the slide rod 20, and the elastic action of the spring 23 can help the slide rod 20 and the clamping claw 2 to be reset, thereby completing the use process of the valve body claw structure of the large railway maintenance machinery.

[0036] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A valve body claw structure for a large railway track maintenance machine, comprising a connecting column (1) and a clamping claw (2), wherein the bottom end of the connecting column (1) is connected to the clamping claw (2) via a hinge seat (3), characterized in that: The clamping claws (2) are provided with at least four and are evenly distributed on the outer circumference of the bottom end of the connecting column (1); the connecting column (1) is provided with an adjustment mechanism corresponding to the clamping claws (2) one by one and driving the clamping claws (2) to rotate; the adjustment mechanism comprises a strip-shaped connecting block (4) which is slidably connected to the connecting column (1) and one end of which extends horizontally to the outside of the connecting column (1); a hinged rod (5) which is rotatably arranged on the outer end of the strip-shaped connecting block (4) and the other end of which is rotatably connected to the outer wall of the clamping claw (2); the connecting column (1) is provided with a strip-shaped sliding groove (10) which corresponds to the strip-shaped connecting block (4) one by one and allows the corresponding strip-shaped connecting block (4) to slide up and down respectively; each of the hinged rods (5) is oriented toward the side wall of the connecting column (1). Each of the four clamping claws (2) is hingedly connected to a support rod (6), and the other end of each support rod (6) is rotatably connected to the outer wall of the connecting column (1). The connecting column (1) is provided with a driving mechanism for driving the four clamping claws (2) to rotate simultaneously; the driving mechanism comprises a cavity (7) opened in the middle of the top end of the connecting column (1) and extending vertically downward, a screw rod (8) rotatably arranged inside the cavity (7) and with the top end extending vertically above the connecting column (1), and a motor (11) fixedly mounted on the top end of the screw rod (8). The screw rod (8) is threadedly adjusted with an annular sleeve block (9) located inside the cavity (7), and one end of each of the strip-shaped connecting blocks (4) located inside the connecting column (1) is integrally formed with the annular sleeve block (9).

2. A valve body claw structure for a large railway maintenance machinery according to claim 1, characterized in that: An anti-slip layer (24) made of rubber material is adhered to the clamping end surface of each clamping claw (2).

3. The valve body claw structure of a large railway maintenance machinery according to claim 1 is characterized in that: Each of the strip-shaped connecting blocks (4) is symmetrically provided with two limit blocks (14); a strip-shaped slide groove (15) corresponding to the limit blocks (14) and allowing the corresponding limit blocks (14) to slide vertically is provided on the outer circumference of the connecting column (1); each of the limit blocks (14) is connected to the strip-shaped slide groove (10) on the corresponding side; and each of the limit blocks (14) is provided with a roller (16) in contact with the inner wall of the strip-shaped slide groove (15).

4. The valve body claw structure of a large railway maintenance machinery according to claim 1 is characterized in that: The top end of the connecting column (1) is connected to a mounting plate (13) via a bracket (12), and the motor (11) is mounted at the middle of the bottom end of the mounting plate (13).

5. The valve body claw structure of a large railway maintenance machinery according to claim 1 is characterized in that: An extension column (17) is formed at the bottom end of the connecting column (1), and an auxiliary mechanism (18) is provided on the extension column (17) which corresponds one-to-one with the clamping claw (2) and assists the clamping claw (2) in resetting.

6. A valve body claw structure for a large railway maintenance machinery according to claim 5, characterized in that: The auxiliary mechanism (18) comprises a sleeve (19) rotatably arranged on the outer circumference of the extension column (17), a slide rod (20) slidably arranged inside the sleeve (19) and the free end of which is rotatably connected to the clamping claw (2), each of the sleeves (19) is provided with a spring (23) whose end is fixedly connected to the rear end of the slide rod (20), and a limiting slider (21) is formed on the rear end of each slide rod (20) to prevent the slide rod (20) from derailing, and a limiting slide groove (22) slidably connected to the limiting slider (21) is formed on the inner wall of each sleeve (19).

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