Trolley for installing thrust bearing

Abstract

The utility model belongs to the technical field of bearing installation, and particularly discloses a trolley for installing a thrust bearing, which comprises a jacking frame and a movable frame seat which are sleeved, walking mechanisms are respectively arranged at four corners of the bottom of the movable frame seat, the movable frame seat can drive the jacking frame to walk synchronously, and the jacking frame is in sliding connection with the movable frame seat. A jacking part is arranged between the movable frame seat and the jacking frame, the jacking frame can vertically ascend or descend relative to the movable frame seat under the action of the jacking part, the thrust bearing can be conveniently transferred by the aid of the trolley for mounting the thrust bearing, mounting of the thrust bearing can be completed in an auxiliary manner, and mounting efficiency of the thrust bearing is improved. The thrust bearing can be assembled, disassembled and transferred by cooperation of two persons, so that personnel occupation is reduced, the labor intensity is reduced, and the labor efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing installation, and specifically discloses a trolley for installing a thrust bearing. Background Art

[0002] The thrust bearing is a key component in the cone crusher. Its function is to reduce the sliding friction of the equipment during operation, reduce power loss, increase the service life of the wear-resistant parts of the cone crusher, reduce repair and maintenance costs, and strive for higher equipment utilization. The thrust bearing is installed between the bottom of the cone crusher main shaft and the thrust pad (steel plate). It is under great pressure and has high material and size requirements. In particular, the clearance between the bottom of the crusher main shaft and the steel middle plate is an important technical difficulty. Due to manufacturing and installation errors, it is easy to cause cracks in the thrust bearing or even pulverized fractures during operation. The thrust bearing installation structure is as follows: Figure 1 As shown, the thrust bearing includes three components: piston assembly b, thrust washer c and spindle thrust plate d. The thrust washer c is placed on the piston assembly b. The thrust washer c moves freely between the spindle thrust plate d and the piston assembly b. The piston assembly b is placed on the hydraulic piston a. A locating pin is arranged between the piston assembly b and the hydraulic piston a to prevent the piston assembly b from rotating on the hydraulic piston a. The spindle thrust plate d is kept at the bottom end of the spindle e. The thrust bearing assembly bears the entire axial load generated by the spindle assembly and the crushing force in the crushing chamber.

[0003] The thrust bearing used in the crusher is heavy. Taking the SANDVIK CH890:01 crusher as an example, the piston assembly b weighs 93kg, the thrust washer c weighs 115kg, and the main shaft thrust plate d weighs 115kg. When installing the thrust bearing, four to five workers are needed to cooperate. Use the tooling to lift the piston assembly b, thrust washer c and main shaft thrust plate d to the bottom of the crusher main shaft e respectively, use the lifting device to lift, adjust the position and accurately position it, and then work together to lift the thrust washer c upwards. After installation, press the retaining spring at the bottom of the main shaft to make the thrust bearing Keep it at the bottom of the main shaft to avoid falling off. The thrust bearing parts need to be replaced when they are worn to a certain extent. Even if the three parts are worn differently, they must all be replaced at the same time to ensure the correct geometric dimensions of the bearing. In addition, the maximum allowable clearance between the thrust bearing parts is 0.05mm (0.002"). The thrust bearing parts should be removed from the crusher regularly to check the oil tank. At present, the disassembly and assembly of the thrust bearing is labor-intensive, requires a large number of people, and is time-consuming and labor-intensive. It is urgent to design an auxiliary tool that can assist the installation of the thrust bearing to reduce labor intensity, reduce personnel occupation, and improve labor efficiency. Summary of the invention

[0004] In order to solve the problems in the background technology, the utility model discloses a trolley for installing a thrust bearing, including an inner frame and an outer frame which are slidably connected, to assist the installation of the thrust bearing, reduce labor intensity, reduce personnel occupation, and improve labor efficiency.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A trolley for installing a thrust bearing comprises a sleeved jacking frame and a movable frame seat, wherein walking mechanisms are respectively arranged at the four corners of the bottom of the movable frame seat, and the movable frame seat can drive the jacking frame to move synchronously, the jacking frame is slidably connected to the movable frame seat, and a jacking member is arranged between the movable frame seat and the jacking frame, and under the action of the jacking member, the jacking frame can vertically rise or fall relative to the movable frame seat.

[0007] Furthermore, the thrust bearing installation trolley, the lifting frame and the moving frame seat are both hollow frame structures, the lifting frame and the moving frame seat respectively include an upper frame, a lower frame and a plurality of vertical beams arranged between the upper frame and the lower frame, a plurality of support seats are arranged at intervals along the circumference of the moving frame seat on the inner side or outer side of the lower part of the moving frame seat, the support seats are fixedly connected to the lower frame and / or the vertical beams of the moving frame seat, the moving frame seat is sleeved on the outside of the lifting frame or the lifting frame is sleeved on the outside of the moving frame seat, the lifting frame is placed on the support seats, and the vertical beams of the lifting frame are slidably connected to the vertical beams of the moving frame seat.

[0008] Furthermore, the thrust bearing installation trolley has at least two protruding stoppers spaced apart on the upper frame of the jacking frame.

[0009] Furthermore, the thrust bearing installation trolley is provided with diagonal bracing rods between adjacent edges in the upper frame of the jacking frame.

[0010] Furthermore, in the trolley for installing the thrust bearing, the lifting member is a hydraulic cylinder or a jack, and the hydraulic cylinder or the jack is arranged on the crossbeam in the middle of the lower frame of the movable frame seat, and a lifting seat is arranged at the bottom of the lifting frame at a position corresponding to the hydraulic cylinder or the jack, and the lifting seat includes a plurality of reinforcing rods cross-arranged in the lower frame of the lifting frame.

[0011] Furthermore, the thrust bearing installation trolley, the walking mechanism includes walking wheels with a locking function.

[0012] Furthermore, the thrust bearing installation trolley is provided with a handle on one side of the upper portion of the movable frame seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model thrust bearing installation trolley comprises a sleeve-arranged jacking frame and a movable frame seat, wherein walking mechanisms are respectively arranged at the four corners at the bottom of the movable frame seat, and the movable frame seat can drive the jacking frame to walk synchronously, and the jacking frame is slidably connected with the movable frame seat, and a jacking piece is arranged between the movable frame seat and the jacking frame, and under the action of the jacking piece, the jacking frame can vertically rise or fall relative to the movable frame seat. The utility model thrust bearing installation trolley can be used to conveniently transfer the thrust bearing and assist in completing the installation of the thrust bearing, and two persons can cooperate to complete the installation, disassembly and transfer of the thrust bearing, thereby reducing the occupation of personnel, reducing the labor intensity and improving the labor efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the thrust bearing installation structure in the background technology;

[0017] Figure 2 This is a schematic diagram of the structure of a trolley for installing a thrust bearing of the utility model;

[0018] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure of the Chinese and foreign frames;

[0019] Figure 4 yes Figure 2 Schematic diagram of the three-dimensional structure of the inner frame;

[0020] In the above figure: a-hydraulic piston; b-piston assembly; c-thrust bearing; d-thrust plate; e-spindle; 1-handle; 2-movable frame seat; 2.1-upper frame A; 2.2-external beam; 2.3-support seat; 2.4-lower frame A; 2.5-universal wheel; 2.6-lifting piece; 2.7-cross beam; 3-lifting frame; 3.1-upper frame B; 3.2-stopper; 3.3-diagonal support rod; 3.4-inner beam; 3.5-lower frame B; 3.6-lifting seat. DETAILED DESCRIPTION

[0021] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0022] The following is combined with Figure 1-4 , the utility model is described in detail. A trolley for installing a thrust bearing comprises a sleeve-mounted jacking frame 3 and a movable frame seat 2. A walking mechanism is respectively arranged at the four corners of the bottom of the movable frame seat 2. The movable frame seat 2 can drive the jacking frame 3 to move synchronously. The jacking frame 3 is slidably connected with the movable frame seat 2. A jacking piece 2.6 is arranged between the movable frame seat 2 and the jacking frame 3. Under the action of the jacking piece 2.6, the jacking frame 3 can vertically rise or fall relative to the movable frame seat 2. During operation, when the thrust bearing needs to be removed from the crusher, the trolley for installing the thrust bearing of the utility model is first transferred to the vicinity of the crusher, and the thrust bearing is hoisted by the lifting device. The jacking piece 2.6 lifts the jacking frame 3. The jacking frame 3 vertically rises relative to the movable frame seat 2 and contacts with the thrust bearing. The lifting device is released, and the jacking frame 3 receives the removed thrust The bearing descends vertically relative to the movable frame seat 2, and the lifting frame 3 and the thrust bearing are moved to the maintenance site by the movable frame seat 2. When the maintenance is completed or a new thrust bearing needs to be installed, the thrust bearing is placed on the lifting frame 3, and the thrust bearing is transferred to the vicinity of the crusher by using the thrust bearing installation trolley of the utility model, and the position is adjusted and accurately positioned. The lifting frame 3 rises vertically relative to the movable frame seat 2 to lift the thrust washer c, and the thrust bearing is hoisted by the lifting device. After the installation is completed, a retaining spring is pressed on the bottom of the main shaft to keep the thrust bearing at the bottom of the main shaft to prevent it from falling off. The thrust bearing can be conveniently transferred by using the thrust bearing installation trolley of the utility model, and the installation of the thrust bearing can be assisted. The installation, disassembly and transfer of the thrust bearing can be completed by two people working together, which reduces the occupation of personnel, reduces the labor intensity and improves the labor efficiency.

[0023] As an optional design, the thrust bearing installation trolley is preferably used, the lifting frame 3 and the movable frame seat 2 are both hollow frame structures, the movable frame seat 2 includes an upper frame A2.1, a lower frame A2.4 and four vertically arranged outer beams 2.2 arranged between the upper frame A2.1 and the lower frame A2.4, the lifting frame 3 includes an upper frame B3.1, a lower frame B3.5 and four vertically arranged inner beams 3.4 arranged between the upper frame B3.1 and the lower frame B3.5, the upper frame A2.1, the lower frame A2.4, the upper frame B3.1 and the lower frame B3.5 are concentrically arranged rectangular frames, the lifting frame 3 and The movable frame seat 2 is matched and arranged, and a plurality of support seats 2.3 are arranged at intervals along the circumference of the movable frame seat 2 on the inner side or outer side of the lower part of the movable frame seat 2, and the heights of the support seats 2.3 are the same. The utility model thrust bearing installation trolley is provided with a plurality of support seats 2.3 at intervals along the circumference of the lower frame A2.4 on the inner side of the lower part of the movable frame seat 2, and the support seats 2.3 are fixedly connected with the lower frame A2.4 of the movable frame seat 2 and / or the outer vertical beam 2.2, and the movable frame seat 2 is sleeved on the outside of the jacking frame 3, and the jacking frame 3 is placed on the support seat 2.3, and the vertical beam of the jacking frame 3 is slidably connected with the vertical beam of the movable frame seat 2, such as Figure 2 As shown, in addition, the utility model thrust bearing installation trolley can also be provided with a plurality of support seats 2.3 at intervals along the circumferential direction of the outer beam 2.2 on the outer side of the lower part of the moving frame seat 2, the support seats 2.3 are fixedly connected to the lower frame A2.4 of the moving frame seat 2 and / or the outer beam 2.2, the jacking frame 3 is sleeved on the outside of the moving frame seat 2, the jacking frame 3 is placed on the support seat 2.3, and the jacking frame 3 beam is slidably connected to the moving frame seat 2 beam. Figure 2 The structure shown is similar, and only slight adjustments need to be made to the structure and installation position of the support base 2.3, the lifting member 2.6 and the lifting base 3.6.

[0024] As an optional design, the thrust bearing installation trolley is preferably provided with at least two protruding stoppers 3.2 spaced apart on the upper frame B3.1 of the jacking frame 3, and the stoppers 3.2 are provided to limit the radial movement of the thrust washer c.

[0025] As an optional design, the thrust bearing installation trolley is preferably provided with diagonal support rods 3.3 between adjacent edges in the upper frame of the lifting frame 3, so as to improve the strength of the lifting frame 3 and increase the contact area with the thrust washer c. At the same time, the application scope of the thrust bearing installation trolley of the utility model is also improved, and it is suitable for thrust washers c of various specifications.

[0026] As an optional design, the thrust bearing installation trolley is preferably used, and the lifting member 2.6 is a hydraulic cylinder or a jack, and the hydraulic cylinder or the jack is arranged on the crossbeam 2.7 in the middle of the lower frame A2.4 of the movable frame seat 2, and a lifting seat 3.6 is arranged at the bottom of the lifting frame 3 corresponding to the hydraulic cylinder or the jack. The lifting seat 3.6 includes a plurality of reinforcing rods cross-arranged in the lower frame B3.5 of the lifting frame 3. It should be noted here that when the thrust bearing installation trolley of the utility model is a structure in which the movable frame seat 2 is sleeved on the outside of the lifting frame 3, the lifting seat 3.6 includes two reinforcing rods arranged along the diagonal direction of the lower frame B3.5, and the lifting member 2.6 is arranged below the intersection of the two reinforcing rods, such as Figure 3 and Figure 4 As shown, the thrust bearing installation trolley of the utility model is a structure in which the lifting frame 3 is sleeved on the outside of the moving frame seat 2, and the lifting seat 3.6 includes two reinforcing rods arranged along the length and width direction of the lower frame B3.5, and the lifting frame 3 is sleeved on the outside of the moving frame seat 2 and then connected to the reinforcing rods arranged along the length and width direction of the lower frame B3.5, and the lifting member 2.6 is arranged below the intersection of the two reinforcing rods. This structure is not shown in the accompanying drawings.

[0027] As an optional design, the thrust bearing installation trolley is preferably used, and the walking mechanism includes a universal wheel 2.5 with a locking function to achieve the walking and locking of the movable frame seat 2, so as to facilitate the use of the thrust bearing installation trolley of the utility model to assist in completing the transfer, installation and removal of the thrust bearing.

[0028] As an optional design, the thrust bearing installation trolley is preferably provided with a handle 1 on one side of the upper portion of the movable frame seat 2, and a force is applied to the movable frame seat 2 through the handle 1, so that the thrust bearing installation trolley of the utility model can be used to assist in completing the transfer, installation and removal of the thrust bearing.

[0029] The working process of the utility model is as follows:

[0030] When the thrust bearing needs to be removed from the crusher, first transfer the utility model thrust bearing installation trolley to the vicinity of the crusher, remove the thrust bearing, lift the thrust bearing with the lifting device, lift the lifting frame 3 with the lifting piece 2.6, and the lifting frame 3 rises vertically relative to the moving frame seat 2 to contact the thrust bearing, release the lifting device, and the lifting frame 3 receives the removed thrust bearing and vertically descends relative to the moving frame seat 2 until the bottom of the lifting frame 3 contacts the support seat 2.3, and the lifting frame 3 and the thrust bearing are moved to the maintenance site by the moving frame seat 2. When the maintenance is completed or a new thrust bearing needs to be installed, place the thrust bearing on the lifting frame 3, and use the utility model thrust bearing installation trolley to lift the thrust bearing. The thrust bearing is transferred to the vicinity of the crusher, the lifting frame 3 is vertically raised relative to the movable frame seat 2 to lift the thrust washer c, the thrust bearing is lifted by a sling, and the position is adjusted to accurately position it. After the installation is completed, a retaining spring is pressed on the bottom of the main shaft to keep the thrust bearing at the bottom of the main shaft to prevent it from falling off. In actual work, the thrust bearing is disassembled and assembled as a whole according to needs and actual working conditions, or the three components of the thrust bearing are disassembled and assembled separately. The thrust bearing installation trolley of the utility model can be used to conveniently transfer the thrust bearing and assist in completing the installation of the thrust bearing. Two people can cooperate to complete the installation, disassembly and transfer of the thrust bearing, which reduces personnel occupancy, reduces labor intensity and improves labor efficiency.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A trolley for installing a thrust bearing, characterized by: It includes a lifting frame and a moving frame seat which are sleeved together. Walking mechanisms are respectively arranged at the four corners of the bottom of the moving frame seat. The moving frame seat can drive the lifting frame to move synchronously. The lifting frame is slidably connected to the moving frame seat. A lifting piece is arranged between the moving frame seat and the lifting frame. Under the action of the lifting piece, the lifting frame can rise or fall vertically relative to the moving frame seat.

2. The thrust bearing installation trolley according to claim 1, characterized in that: The jacking frame and the moving frame seat are both hollow frame structures, and the jacking frame and the moving frame seat respectively include an upper frame, a lower frame and a plurality of vertical beams arranged between the upper frame and the lower frame, and a plurality of support seats are arranged at intervals along the circumference of the moving frame seat on the inner side or the outer side of the lower part of the moving frame seat, and the support seats are fixedly connected to the lower frame and / or the vertical beams of the moving frame seat, and the moving frame seat is sleeved on the outside of the jacking frame or the jacking frame is sleeved on the outside of the moving frame seat, and the jacking frame is placed on the support seats, and the vertical beams of the jacking frame are slidably connected to the vertical beams of the moving frame seat.

3. The thrust bearing installation trolley according to claim 2, characterized in that: At least two protruding stoppers are arranged at intervals on the upper side frame of the lifting frame.

4. The thrust bearing installation trolley according to claim 3, characterized in that: Diagonal support rods are respectively arranged between adjacent edges in the upper frame of the jacking frame.

5. The thrust bearing installation trolley according to claim 3, characterized in that: The lifting member is a hydraulic cylinder or a jack, which is arranged on a crossbeam in the middle of the lower frame of the movable frame seat. A lifting seat is arranged at a position corresponding to the hydraulic cylinder or the jack at the bottom of the lifting frame, and the lifting seat includes a plurality of reinforcing rods cross-arranged in the lower frame of the lifting frame.

6. The thrust bearing installation trolley according to any one of claims 1 to 5, characterized in that: The walking mechanism comprises walking wheels with a locking function.

7. The thrust bearing installation trolley according to any one of claims 1 to 5, characterized in that: A handle is arranged on one side of the upper part of the movable frame seat.

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