Spring jacking device

Abstract

The utility model relates to the technical field of transmission shaft components, in particular to a spring jacking device which comprises a cross beam, a detector and a foot box, and a transverse moving mechanism for driving the cross beam and the detector to transversely move on a guide rail left and right is arranged in the foot box. And a spring jacking mechanism for absorbing and slowly releasing vibration generated in the moving process is arranged in the transverse moving mechanism. By adopting the modular design, each part is easy to install and maintain, and through the adjustment of the pre-tightening force of the spring, the device can quickly adapt to different working conditions, can be widely applied to various transmission systems such as electrified railways, mechanical transmission systems and the like, and is particularly suitable for high-precision and high-load scenes; when the driving wheel moves on the guide rail, the spring bears pressure such as vibration generated during movement, the pressure is transmitted to the driving wheel shaft sleeve through the spring mounting base, and therefore it is guaranteed that the movement direction of the driving wheel transmission shaft and the movement direction of the driving wheel are accurate and free of deviation.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission shaft assembly technical field especially relates to a spring jacking device. BACKGROUND

[0002] In the mechanical transmission system, in order to ensure that transmission shaft assembly has good stability and anti-vibration performance in the working process, it is usually necessary to exert certain pre-tightening force to transmission parts. The traditional pre-tightening structure is usually relatively complex, inconvenient to adjust, and difficult to adapt to various working environments. Therefore, it is particularly important to design a spring jacking structure with simple structure, convenient operation and effective adjustment. SUMMARY

[0003] In view of the defects of the prior art, the utility model provides a spring jacking device, which solves the technical problems that the pre-tightening structure of the transmission shaft assembly in the prior art is usually relatively complex, inconvenient to adjust and difficult to adapt to various working environments. Through the adjustment of the spring pre-tightening force, the stable positioning of the transmission shaft assembly can be effectively realized.

[0004] To solve the above technical problems, the utility model provides the following technical scheme: a spring jacking device, which comprises a detector for detecting a steel plate installed on two adjacent cross beams, a foot box is arranged at the bottom of the cross beam, and a guide rail is arranged below the foot box, a horizontal moving mechanism for driving the cross beam and the detector to move left and right on the guide rail is arranged in the foot box, and a spring jacking mechanism for absorbing and releasing the vibration generated during movement is arranged in the horizontal moving mechanism.

[0005] Further improvement lies in that the spring jacking mechanism comprises transmission shaft sleeves symmetrically installed on the left and right sides of the foot box, a driving wheel transmission shaft is rotatably connected in the transmission shaft sleeve, bearing mounting seats are symmetrically sleeved and installed at both ends of the driving wheel transmission shaft, a driving wheel is sleeved and installed on the middle part of the driving wheel transmission shaft and rolls on the guide rail, driving wheel shaft sleeves are sleeved and installed on both sides of the driving wheel, spring mounting seats are installed outside the driving wheel shaft sleeves, springs are sleeved and installed between the spring mounting seats and the bearing mounting seats, and an auxiliary jacking mechanism for absorbing and releasing the vibration generated during movement is installed on the driving wheel transmission shaft and adheres to the inner side of the guide rail.

[0006] Further improvement lies in that the auxiliary jacking mechanism comprises a mounting seat shaft sleeve installed on the driving wheel transmission shaft, a guide wheel mounting seat is installed on the mounting seat shaft sleeve, guide wheel connecting plates are symmetrically installed at the bottom of both sides of the guide wheel mounting seat, roller needle bearings are installed on the guide wheel connecting plates, and small springs are installed between the roller needle bearings and the guide wheel connecting plates.

[0007] Further improvement lies in that the roller needle bearing is attached to the inner side of the guide rail, and a limiting sliding sleeve in the small spring is installed on the guide wheel connecting plate, and a limiting sliding rod with the outer end connected with the roller needle bearing is slidably connected in the limiting sliding sleeve.

[0008] Further improvement lies in that the horizontal moving mechanism comprises a driving motor installed in the foot box, and a rotating shaft is connected to the output end of the driving motor, symmetrical belt pulleys are installed on the rotating shaft and the driving wheel transmission shaft, and a transmission belt is transmissionally connected between the two belt pulleys.

[0009] Further improvement lies in that the bottom of the foot box is a semi-closed structure, and the horizontal moving mechanism is installed on the foot box bottom blocking plate, and the driving wheel on the spring jacking mechanism rolls on the guide rail through the opening of the foot box bottom.

[0010] By the above technical scheme, the spring jacking device has at least the following beneficial effects:

[0011] 1. The spring jacking device is designed in a modular manner, and each component is easy to install and maintain. The device can quickly adapt to different working conditions through the pre-tightening force of the spring, and can be widely applied to various transmission systems such as electrified railways and mechanical transmission systems, especially in high-precision and high-load scenarios. The device is of great significance to improving the operation efficiency and prolonging the service life of the equipment.

[0012] 2. When the driving wheel moves on the guide rail, the spring is subjected to vibration and other pressures generated during movement. The pressure is transmitted to the driving wheel shaft sleeve through the spring mounting seat, thereby ensuring that the movement direction of the driving wheel transmission shaft and the driving wheel is accurate and has no deviation.

[0013] 3. The device combines the guide wheel component with the roller needle bearing, and the elastic potential energy of the small spring is used to absorb and release the vibration, thereby greatly reducing the friction and vibration during operation and improving the stability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate certain illustrative embodiments of the application and together with the description serve to explain the application.

[0015] In the drawings:

[0016] Figure 1 The figure is a schematic diagram of the overall structure of the device;

[0017] Figure 2 The figure is a schematic diagram of the internal structure of the foot box side view cross section;

[0018] Figure 3The utility model discloses a foot box inside structure schematic diagram of overlooking;

[0019] Figure 4 The utility model discloses a spring top mechanism independent structure schematic diagram;

[0020] Figure 5 The utility model discloses an auxiliary top mechanism partial section view enlarged structure schematic diagram.

[0021] In the drawing: 1, crossbeam, 2, detector, 3, foot box, 4, guide rail,

[0022] 5, horizontal moving mechanism, 51, drive motor, 52, rotating shaft, 53, pulley, 54, transmission belt,

[0023] 6, spring top mechanism, 61, transmission shaft sleeve, 62, driving wheel transmission shaft, 63, bearing mounting seat, 64, driving wheel, 65, driving wheel sleeve, 66, spring mounting seat, 67, spring,

[0024] 68, auxiliary top mechanism, 681, mounting seat sleeve, 682, guide wheel mounting seat, 683, guide wheel connecting plate, 684, gyro wheel needle bearing, 685, small spring, 686, limit sliding sleeve, 687, limit sliding rod. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0026] Embodiment one

[0027] Based on the problems that the pre-tightening structure of the transmission shaft assembly in the prior art is generally complex, inconvenient to adjust and difficult to adapt to various working environments, the embodiment provides a spring top device, please refer to Figures 1-5The embodiment provides a spring pressing device, which can effectively realize the stable positioning of a transmission shaft assembly through the adjustment of spring pre-tightening force. The spring pressing device comprises a detector 2 for detecting a steel plate, which is installed on two adjacent cross beams 1; a foot box 3 is arranged at the bottom of the cross beam 1, and a guide rail 4 is arranged below the foot box 3; a transverse moving mechanism 5 for driving the cross beam 1 and the detector 2 to move left and right on the guide rail 4 is arranged in the foot box 3; and a spring pressing mechanism 6 for absorbing and releasing the vibration generated in the moving process is arranged in the transverse moving mechanism 5. The transverse moving mechanism 5 drives the spring pressing mechanism 6 to move left and right on the guide rail 4, so as to drive the detector 2 to detect the steel plate. The arrangement of the spring pressing mechanism 6 can effectively absorb and release the vibration generated in the moving process, thereby achieving good stability and anti-vibration performance.

[0028] The transmission shaft assembly pre-tightening structure in the prior art is usually complex and inconvenient to adjust, so the device is provided with the spring pressing mechanism 6. The spring pressing mechanism 6 comprises transmission shaft shaft sleeves 61 which are symmetrically installed on the left and right sides of the foot box 3. A driving wheel transmission shaft 62 is rotationally connected in the transmission shaft shaft sleeve 61. Bearing mounting seats 63 are symmetrically arranged at the two ends of the driving wheel transmission shaft 62. A driving wheel 64 is arranged on the driving wheel transmission shaft 62 in a sleeved manner and rolls on the guide rail 4. Driving wheel shaft sleeves 65 are arranged on the left and right sides of the driving wheel 64 in a sleeved manner. Spring mounting seats 66 are arranged on the outer sides of the driving wheel shaft sleeves 65. Springs 67 are arranged between the spring mounting seats 66 and the bearing mounting seats 63 in a sleeved manner. An auxiliary pressing mechanism 68 for absorbing and releasing the vibration generated in the moving process is arranged on the driving wheel transmission shaft 62 and adheres to the inner side of the guide rail 4. Through the pressure of the spring 67, the transmission shaft assembly, including the driving wheel transmission shaft 62 and the driving wheel 64, is fixed at a predetermined position, so as to realize the pre-tightening positioning of the transmission system. The structure is simple and convenient to adjust. When the driving wheel 64 moves on the guide rail 4, the spring 67 is subjected to the pressure of the vibration generated in the moving process. The pressure is transmitted to the driving wheel shaft sleeve 65 through the spring mounting seat 66, so as to ensure that the movement direction of the driving wheel transmission shaft 62 and the driving wheel 64 is accurate and has no deviation.

[0029] The transverse moving mechanism 5 comprises a driving motor 51 which is installed in the foot box 3. A rotating shaft 52 is connected to the output end of the driving motor 51. Belt wheels 53 are symmetrically arranged on the driving wheel transmission shaft 62 and the rotating shaft 52. A transmission belt 54 is transmissionally connected between the two belt wheels 53.

[0030] The bottom of the foot box 3 is a semi-enclosed structure, and the transverse mechanism 5 is installed on the bottom sealing plate of the foot box 3. The drive wheel 64 on the spring pressing mechanism 6 rolls on the guide rail 4 through the bottom opening of the foot box 3. The drive motor 51 is started to drive the rotating shaft 52 to rotate, which in turn drives the pulley 53 on the rotating shaft 52 to rotate. This drives the pulley 53 on the drive wheel drive shaft 62 to rotate through the transmission belt 54, which in turn drives the drive wheel drive shaft 62 and the drive wheel 64 on it to rotate, causing the detector 2 to move left and right on the guide rail 4 to detect the steel plate.

[0031] Example 2

[0032] To further reduce kinetic friction and improve transmission efficiency and stability, therefore, based on Example 1, as follows... Figures 1-5 As shown, the device is also equipped with an auxiliary clamping mechanism 68. The auxiliary clamping mechanism 68 includes a mounting base bushing 681 mounted on the drive wheel transmission shaft 62, and a guide wheel mounting base 682 mounted on the mounting base bushing 681. Guide wheel connecting plates 683 are symmetrically mounted on both sides of the bottom of the guide wheel mounting base 682, and roller needle bearings 684 are mounted on the guide wheel connecting plates 683. A small spring 685 is installed between the roller needle bearing 684 and the guide wheel connecting plate 683. The roller needle bearing 684 is pressed against the inner side of the guide rail 4 by adjusting the pressure of the small spring 685. During the rolling of the drive wheel 64, the cooperation between the roller needle bearing 684 and the small spring 685 further reduces the motion friction, improves the transmission efficiency, and improves the overall stability of the transmission system.

[0033] To prevent the small spring 685 from bending due to deflection force during movement, the roller needle bearing 684 in this device is fitted against the inner side of the guide rail 4, and a limiting sleeve 686 located inside the small spring 685 is installed on the guide wheel connecting plate 683. A limiting rod 687 with its outer end connected to the roller needle bearing 684 is slidably connected inside the limiting sleeve 686. Through the cooperation of the limiting sleeve 686 and the limiting rod 687, the small spring 685 is restricted to moving only in a straight line along the two, thereby preventing the small spring 685 from bending and affecting normal use.

[0034] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring tensioning device comprising a detector (2) for detecting a steel plate mounted on two adjacent crossbeams (1), characterized in that: The bottom of the crossbeam (1) is provided with a foot box (3), and the foot box (3) is provided below with a guide rail (4), the foot box (3) is provided with a transverse moving mechanism (5) for driving the crossbeam (1) and the detector (2) to move left and right on the guide rail (4), and the transverse moving mechanism (5) is provided with a spring tensioning mechanism (6) for absorbing and releasing the vibration generated in the moving process.

2. A spring retractor according to claim 1, wherein: The spring tensioning mechanism (6) comprises transmission shaft sleeves (61) symmetrically installed on the left and right sides of the foot box (3), and a driving wheel transmission shaft (62) is rotatably connected in the transmission shaft sleeve (61), both ends of the driving wheel transmission shaft (62) are symmetrically provided with bearing mounting seats (63), and a driving wheel (64) is sleeved and installed on the middle part of the driving wheel transmission shaft (62) and rolls on the guide rail (4), driving wheel shaft sleeves (65) are sleeved and installed on the left and right sides of the driving wheel (64), spring mounting seats (66) are installed on the outside of the driving wheel shaft sleeves (65), springs (67) are sleeved and installed between the spring mounting seats (66) and the bearing mounting seats (63), and an auxiliary tensioning mechanism (68) for absorbing and releasing the vibration generated when moving is installed on the driving wheel transmission shaft (62) and abuts against the inner side of the guide rail (4).

3. A spring retractor according to claim 2, wherein: The auxiliary tensioning mechanism (68) comprises a mounting seat sleeve (681) installed on the driving wheel transmission shaft (62), and a guide wheel mounting seat (682) is installed on the mounting seat sleeve (681), guide wheel connecting plates (683) are symmetrically installed on the bottom of the guide wheel mounting seat (682), roller needle bearings (684) are installed on the guide wheel connecting plates (683), and small springs (685) are installed between the roller needle bearings (684) and the guide wheel connecting plates (683).

4. A spring retractor according to claim 3, wherein: The roller needle bearings (684) abut against the inner side of the guide rail (4), limit sleeves (686) are installed on the guide wheel connecting plates (683) and located in the small springs (685), and limit slide rods (687) connected with the roller needle bearings (684) at the outer ends are slidably connected in the limit sleeves (686).

5. A spring retractor according to claim 1, wherein: The transverse moving mechanism (5) comprises a driving motor (51) installed in the foot box (3), and a rotating shaft (52) is connected to the output end of the driving motor (51), belt wheels (53) are symmetrically installed on the rotating shaft (52) and the driving wheel transmission shaft (62), and a transmission belt (54) is transmissionally connected between the two belt wheels (53).

6. A spring retractor according to claim 1, wherein: The bottom of the foot box (3) is a semi-closed structure, the transverse moving mechanism (5) is installed on the bottom blocking plate of the foot box (3), and the driving wheel (64) on the spring tensioning mechanism (6) rolls on the guide rail (4) through the opening at the bottom of the foot box (3).

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