Center pin reassembling and jacking equipment

Abstract

The utility model provides center pin reassembling and jacking equipment. The center pin reassembling and jacking equipment comprises a base and a jacking mechanism; the jacking mechanism comprises a barrel and an extension rod, and a jacking seat is arranged at the top end of the extension rod; a plurality of reinforcing plates are arranged at the lower end of the barrel, a functional frame is arranged at the upper end of the barrel and comprises a lower supporting ring, an upper supporting ring and a plurality of supporting rods, the lower supporting ring is fixed to the barrel, a protruding part is arranged on the upper supporting ring, the outer diameter of the jacking base is larger than the diameter of the extending rod, a stopping part is arranged on the periphery of the jacking base, and a groove is formed in the upper end face of the jacking base; supporting legs are arranged at the lower end of the base, and multiple storage grooves are formed in the upper end face of the base. The center pin jacking device can serve as a storage platform of a center pin, a groove is formed in the jacking base through the supporting and blocking part, the lower end of the center pin is placed in the groove, the upper portion of the center pin is supported by the inclined face of the protruding part, and it is guaranteed that the center pin can be stably stored on the center pin jacking device; and the extension rod is controlled to extend, so that the operation is more convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of electric passenger car maintenance construction, and in particular relates to a center pin reinstallation jacking device. Background Art

[0002] During the use of electric buses, the wheels need to be repaired and maintained. After repair, the wheel diameter will change, which directly affects the height of the vehicle. Therefore, the vehicle height needs to be adjusted after the wheel is repaired. When the synchronous padding method is commonly used for vehicle height adjustment, it is necessary to synchronously add or subtract adjustment pads to the center pin position and the air spring position. The center pin assembly is installed back to its original position using a jacking device, but most of the prior art uses a hydraulic jack to directly apply force to the center pin and push the center pin into the mounting hole. Since the front end of the extension rod of the hydraulic jack has a small effective area, the hydraulic jack and the center pin need to be strictly aligned during the reinstallation operation to stably apply force to the center pin. During operation, the extension rod of the hydraulic jack needs to be aligned with the center pin, and the hydraulic jack needs to be adjusted multiple times in position, which is time-consuming and labor-intensive, affecting work efficiency. Therefore, it is necessary to improve the existing center pin lifting device. Summary of the invention

[0003] In view of this, the invention aims to overcome the defects in the prior art and proposes a center pin reinstallation jacking device.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A center pin reinstallation and lifting device comprises a base and a lifting mechanism on the base; the lifting mechanism comprises a cylinder and an extension rod in the cylinder, the extension rod is arranged upward, and a lifting seat is provided at the top of the extension rod; a plurality of reinforcing plates are provided between the lower end of the cylinder and the base, a functional frame is provided at the upper end of the cylinder, and grip rods are symmetrically provided on the functional frame, the functional frame comprises a lower support ring, an upper support ring and a plurality of support rods therebetween, the lower support ring is fixed to the cylinder, the upper support ring is provided with a protrusion facing away from its center, and the inner wall of the protrusion has an inclined surface; the outer diameter of the lifting seat is larger than the diameter of the extension rod, and an upwardly protruding stopper is provided on the periphery of the lifting seat, so that a groove is formed on the upper end surface of the lifting seat; a supporting foot is provided at the lower end of the base, and a plurality of storage grooves are provided on the upper end surface of the base.

[0006] Furthermore, the reinforcing plates are evenly distributed along the center of the cylinder.

[0007] Furthermore, the support legs adopt a telescopic structure with adjustable height.

[0008] Furthermore, a plurality of cutting grooves are arranged in a staggered manner in a horizontal and vertical manner on the upper surface of the lifting seat.

[0009] Furthermore, a middle support ring is provided between the upper support ring and the lower support ring, and each support rod is fixed to the middle support ring.

[0010] Furthermore, the support rod is fixed to the upper support ring, the middle support ring and the lower support ring by welding.

[0011] Furthermore, the lifting mechanism adopts a hydraulic cylinder.

[0012] Furthermore, the lifting mechanism is perpendicular to the base.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The invention has a reasonable structural design and can be used as a storage platform for the center pin. A groove is formed on the jacking seat by using a supporting portion, and the lower end of the center pin is placed in the groove. The upper part is supported by the inclined surface of the protruding portion, thereby ensuring that the center pin can be stably stored on the jacking device. When jacking the center pin, it is only necessary to erect the center pin on the device and control the extension of the extension rod. The jacking seat expands the working area, and the center pin can be jacked without being strictly aligned with the extension rod. The center pin rotation operation is more convenient. In addition, the device can be conveniently moved using a grip rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure created by the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram after removing the jacking seat;

[0018] Figure 3 A schematic diagram of a lifting seat in the invention;

[0019] Figure 4 for Figure 2 Schematic diagram of the middle function frame with a middle support ring;

[0020] Figure 5 A schematic diagram of the invention when creating a center pin for storage. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] A center pin reinstallation jacking device, such as Figures 1 to 5 As shown, it includes a base 1 and a lifting mechanism 2 on the base; the lifting mechanism includes a cylinder 3 and an extension rod 4 in the cylinder, the extension rod is arranged upward, and a lifting seat 5 is provided at the top of the extension rod. Usually, the lifting mechanism is perpendicular to the base. A plurality of reinforcing plates 6 are provided between the lower end of the cylinder and the base, and each of the reinforcing plates is evenly arranged along the center of the cylinder.

[0026] A functional frame 7 is provided at the upper end of the cylinder, and a grip rod 8 is symmetrically provided on the functional frame. The functional frame includes a lower support ring 9, an upper support ring 10 and a plurality of support rods 11 therebetween. The lower support ring is fixed to the cylinder, and the upper support ring is provided with a protrusion 12 facing away from its center. The inner wall of the protrusion has an inclined surface 13, so that an oblique groove is formed at the protrusion (that is, both sides of the inclined surface are higher than the surface of the inclined surface); the outer diameter of the lifting seat is larger than the diameter of the extending rod, and an upwardly protruding stopper 14 is provided on the periphery of the lifting seat, so that a groove is formed on the upper end surface of the lifting seat.

[0027] like Figure 5As shown, this device can be used as a storage platform for the center pin. A groove is formed on the jacking seat by using a supporting portion. The lower end of the center pin is placed in the groove, and the upper part is supported by the inclined surface of the protruding portion, so as to ensure that the center pin can be stably stored on this jacking device. The lower end of the base is provided with a supporting foot 15, and the upper end surface of the base is provided with a plurality of storage grooves 16. Screws, tools and other items can be stored in the storage grooves to facilitate on-site operations. It should be pointed out that this jacking device can not only reinstall the center pin, but also reinstall the composite spring assembly in the center pin sleeve. The composite spring assembly can also be reinstalled as shown below. Figure 5 When installing, just use the lifting seat to support the end cover at the lower end of the composite spring assembly, so that the lifting force is applied to the composite spring, and then the composite spring and the center pin sleeve are closely attached without any gap.

[0028] The lifting mechanism adopts a hydraulic cylinder, the cylinder barrel of the hydraulic cylinder is the cylinder body 3, and the cylinder rod is the telescopic rod 4. The cylinder rod of the hydraulic cylinder is extended and retracted to drive the lifting seat. When the center pin 19 needs to be lifted, the cylinder rod can be extended. The support foot adopts a telescopic structure with adjustable height, which can be easily adjusted to ensure the stability of the base and can be used for leveling the base. The upper surface of the lifting seat is arranged with a plurality of cutting grooves 17 in a crisscross manner to form anti-slip patterns. When the center pin is lifted, the stability of the center pin is better.

[0029] In an optional embodiment, a middle support ring 18 is provided between the upper support ring and the lower support ring, and each support rod is fixed to the middle support ring, so that the overall structure of the functional frame is high in strength and good in stability. Preferably, the support rod is welded and fixed to the upper support ring, the middle support ring, and the lower support ring, and the functional frame is a whole, the lower support ring is connected to the cylinder, and the upper support ring is used to support the center pin to be installed, and the center pin is stably limited by the position of the protrusion.

[0030] The invention has a reasonable structural design and can be used as a storage platform for the center pin. A groove is formed on the jacking seat by using a supporting portion, and the lower end of the center pin is placed in the groove. The upper part is supported by the inclined surface of the protruding portion, thereby ensuring that the center pin can be stably stored on the jacking device. When jacking the center pin, it is only necessary to erect the center pin of the device and control the extension of the extension rod. The jacking seat expands the working area, and the center pin does not need to be strictly aligned with the extension rod and can be jacked by the jacking mechanism. The center pin rotation operation is more convenient. At the same time, the device can be conveniently moved by using a grip rod, and the device movement is more convenient, saving time and effort.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, 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 center pin reinstallation jacking device, characterized in that: It includes a base and a lifting mechanism on the base; the lifting mechanism includes a cylinder and an extension rod in the cylinder, the extension rod is arranged upward, and a lifting seat is provided at the top of the extension rod; a plurality of reinforcing plates are provided between the lower end of the cylinder and the base, a functional frame is provided at the upper end of the cylinder, and grip rods are symmetrically provided on the functional frame, the functional frame includes a lower support ring, an upper support ring and a plurality of support rods therebetween, the lower support ring is fixed to the cylinder, the upper support ring is provided with a protrusion facing away from its center, and the inner wall of the protrusion has an inclined surface; the outer diameter of the lifting seat is larger than the diameter of the extension rod, and an upwardly protruding stopper is provided on the periphery of the lifting seat, so that a groove is formed on the upper end surface of the lifting seat; a supporting foot is provided at the lower end of the base, and a plurality of storage grooves are provided on the upper end surface of the base.

2. A center pin reinstallation jacking device according to claim 1, characterized in that: The reinforcing plates are evenly distributed along the center of the cylinder.

3. The center pin reinstallation and lifting device according to claim 1, characterized in that: The supporting feet adopt a telescopic structure with adjustable height.

4. The center pin reinstallation and lifting device according to claim 1, characterized in that: A plurality of cutting grooves are arranged in a staggered manner on the upper surface of the lifting seat.

5. The center pin reinstallation jacking device according to claim 1, characterized in that: A middle support ring is arranged between the upper support ring and the lower support ring, and each support rod is fixed to the middle support ring.

6. The center pin reinstallation and lifting device according to claim 1, characterized in that: The support rod is fixed to the upper support ring, the middle support ring and the lower support ring by welding.

7. The center pin reinstallation and lifting device according to claim 1, characterized in that: The jacking mechanism adopts a hydraulic cylinder.

8. The center pin reinstallation and lifting device according to claim 1, characterized in that: The lifting mechanism is perpendicular to the base.

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