Auxiliary device for disassembling brake hub of mine vehicle

Abstract

The utility model discloses an auxiliary device for disassembling a brake hub of a mine vehicle, which is characterized in that a stand column is fixedly mounted on a base, and a driven sleeve is mounted on the stand column. The lifting driving mechanism installed on the base comprises a lead screw, and a nut is installed on the lead screw. An annular step facing downwards is machined on the outer side of the nut, the nut is further sleeved with a driving sleeve, and an upper thrust bearing is installed between the upper end of the driving sleeve and the annular step. The lower end of the nut is connected with a lower positioning nut through external threads, and a lower thrust bearing is installed between the lower end of the driving sleeve and the lower positioning nut. The left end and the right end of the fixing frame are connected with the driving sleeve and the driven sleeve respectively, and the fixing frame is connected with a jacking mechanism. The jacking mechanism is adjusted to ascend and descend through cooperation of the lead screw and the nut, the jacking mechanism ascends by a small distance when the nut rotates by an angle, therefore, elastic potential energy of the spring can be slowly released, the problem that the brake hub splashes due to the action of elastic force can be effectively solved through cooperation of the fixing claw, and safe maintenance work of the brake hub is better guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a brake hub disassembling auxiliary device, concretely relates to a mine vehicle brake hub disassembling auxiliary device. BACKGROUND

[0002] With the continuous expansion of mining operation scale, the production equipment used is also continuously heavy. The brake device of large vehicle equipment is an important factor concerning mine safety production, therefore the overhaul operation of brake device increasingly becomes the important work of guaranteeing safety production.

[0003] At present, the brake hub used in mine large vehicle equipment generally drives the brake disc to brake the equipment through spring elastic force. When disassembling the brake hub, the wheel edge end cover bolt needs to be disassembled first. When disassembling these bolts, the spring force in the wheel edge inside expands outward, when the bolt is completely disassembled, because the end cover bolt fastening force is lost, multiple bolts in the end cover act simultaneously, causing the spring to lose control, which easily causes spring flying accident, causing harm to the maintenance operation personnel. For example, when the ST-3.5 scraper Kessler bridge brake of the mine engineering mechanical vehicle workshop operation personnel is maintained, the spring splashes and causes the brake end cover to suddenly fall off, causing a relatively serious production safety accident. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a mine vehicle brake hub disassembling auxiliary device, which effectively avoids the problem of brake hub parts splashing under the action of internal spring elastic force when disassembling the brake hub wheel edge end cover bolt, so as to ensure that the brake hub overhaul work is safely carried out.

[0005] The technical scheme of the utility model is as follows:

[0006] A mine vehicle brake hub disassembling auxiliary device, comprising a base and a top pressing mechanism located above the base, a stand is fixedly installed on the base, a passive sleeve capable of sliding up and down the stand is installed on the stand, a lifting driving mechanism is also installed on the base, the lifting driving mechanism comprises a lead screw fixed on the base and parallel to the stand, a nut is installed on the lead screw and transmission matched with the lead screw, an annular step facing downward is processed on the outer side of the nut, a driving sleeve is further sleeved on the nut, an upper thrust bearing is installed between the upper end of the driving sleeve and the annular step, a lower positioning nut is connected to the lower end of the nut through external threads, a lower thrust bearing is installed between the lower end of the driving sleeve and the lower positioning nut, the disassembling auxiliary device further comprises a fixing frame connected with the driving sleeve and the passive sleeve at the left and right ends respectively, and the top pressing mechanism is connected with the fixing frame.

[0007] Preferably, the top pressing mechanism comprises two horizontal rods which are crosswise and fixedly connected with each other; two ends of the horizontal rods are respectively fixed with fixed claws extending downwards; a screw rod is fixedly connected at the cross position of the two horizontal rods and arranged longitudinally; and the upper end of the screw rod is connected to the fixed frame.

[0008] Preferably, the base is provided with a positioning hole for placing the brake hub.

[0009] Preferably, a handle is mounted on the nut.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] Firstly, the utility model adjusts the lifting of the top pressing mechanism through the cooperation of the screw rod and the nut, and the top pressing mechanism is lifted by a small distance when the nut is rotated by an angle, so that the spring elastic potential energy can be slowly released, and the fixed claws can effectively prevent the brake hub from splashing due to the elastic force, thereby better ensuring the safe performance of the brake hub maintenance work.

[0012] Secondly, the top pressing mechanism is provided with four fixed claws extending downwards, and the positioning hole can better position the brake hub and press the brake hub more stably and firmly.

[0013] Thirdly, the top pressing mechanism is fixed to the fixed frame through bolts, so that different specifications of the top pressing mechanism can be replaced for different models of the brake hub. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model;

[0015] Figure 2 It is a sectional structure schematic diagram of the lifting driving mechanism in the embodiment of the utility model;

[0016] Figure 3 It is a structure schematic diagram of the top pressing mechanism in the embodiment of the utility model.

[0017] In the drawing: 1. screw rod; 2. vertical column; 3. passive sleeve; 4. base; 4-1. positioning hole; 5. lower positioning nut; 6. lower thrust bearing; 7. active sleeve; 8. upper thrust bearing; 9. nut; 10. handle; 11. upper positioning nut; 12. fixed frame; 13. top pressing mechanism nut; 14. top pressing mechanism; 14-1. horizontal rod; 14-2. fixed claw; 14-3. screw rod. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the embodiments and the drawings thereof.

[0019] As Figure 1The utility model embodiment includes cuboid base 4, fixed mounting has the column 2 of bottom fixed on base 4 on base 4, the column 2 is installed with the passive sleeve 3 of being able to slide freely along the column 2 up and down. Still install the lifting drive mechanism on base 4, combine Figure 2 , the lifting drive mechanism includes the lead screw 1 of bottom fixed on base 4 and with the column 2 each other parallel. The lead screw 1 is installed with the nut 9 of transmission with the lead screw 1 each other. The nut 9 outside is processed with the annular step of facing downwards, the nut 9 still has the active sleeve 7 of outer sleeve, and the upper end between the annular step is installed with the upper thrust bearing 8 of the active sleeve 7, the lower end portion of the nut 9 is connected with the lower locating nut 5 through the outer thread, and the lower end of the active sleeve 7 is installed with the lower thrust bearing 6 between the lower locating nut 5.

[0020] The utility model embodiment still includes the fixed frame 12 of left and right two ends are connected with the active sleeve 7 and passive sleeve 3 respectively.

[0021] Further, the nut 9 is installed with the handle 10. By operating handle 10 makes the nut 9 rotate, and the nut 9 drives the active sleeve 7 to do the lifting movement through the thrust bearing, and drives the fixed frame 12 and passive sleeve 3 synchronous lifting.

[0022] Further, the lead screw 1 is still connected with the upper locating nut 11 of being located above the nut 9 in the thread.

[0023] The fixed frame 12 is connected with the pressing mechanism 14 in the middle. As Figure 3 , the pressing mechanism 14 includes two crossbars 14-1 that are cross each other and are fixedly connected each other, and the two ends of the crossbar 14-1 are fixed with the fixed claw 14-2 that extends to the downwards respectively. Two crossbar intersection parts are fixedly connected with the screw rod 14-3 that is arranged longitudinally. The upper end of the screw rod 14-3 is connected to the fixed frame 12 through the pressing mechanism nut 13. Specifically, the fixed frame 12 is provided with a longitudinal screw hole, and the screw rod 14-3 is screwed into the longitudinal screw hole and passes out from the longitudinal screw hole upwards, and the passing-out part is connected with the pressing mechanism nut 13.

[0024] For different sizes of brake hub, different specifications of pressing mechanism can be replaced to adapt.

[0025] Further, the base 4 is provided with the positioning hole 4-1 for placing the brake hub.

[0026] The following briefly explains the disassembly auxiliary process of the utility model for ST-3.5 kaysler bridge brake.

[0027] When servicing the Kessler brake, the brake is removed and placed in the positioning hole 4-1. When removing the brake end cap, the handle 10 is turned to lower the holder 12 until the fixing claws 14-2 are in contact with the upper side of the brake hub end cap. Then all brake end cap bolts are removed in sequence. Finally, the holder 12 is gradually moved upwards until the spring elastic potential energy in the brake hub is completely released.

Claims

1. A mine vehicle brake hub disassembly assisting device, comprising a base (4) and a jacking mechanism located above the base (4), characterized in that: The base (4) is fixedly provided with a column (2), and the column (2) is provided with a passive sleeve (3) capable of sliding up and down on the column (2); the base (4) is further provided with a lifting driving mechanism; the lifting driving mechanism comprises a lead screw (1) fixed to the base (4) and parallel to the column (2); the lead screw (1) is provided with a nut (9) in transmission cooperation with the lead screw (1); the nut (9) is externally provided with an annular step facing downward, and the nut (9) is further externally provided with a driving sleeve (7); an upper thrust bearing (8) is arranged between the upper end of the driving sleeve (7) and the annular step, a lower positioning nut (5) is connected to the lower end of the nut (9) through external threads, and a lower thrust bearing (6) is arranged between the lower end of the driving sleeve (7) and the lower positioning nut (5); the disassembly assisting device further comprises a fixing frame (12) connected to the driving sleeve (7) and the passive sleeve (3) at left and right ends respectively; the pressing mechanism is connected to the fixing frame (12).

2. The mine vehicle brake hub disassembly assist device of claim 1, wherein: The pressing mechanism comprises two crossbars (14-1) crosswise and fixedly connected to each other; the two ends of the crossbar (14-1) are respectively fixed with fixed claws (14-2) extending downward; the crossbar (14-1) is fixedly connected with a screw rod (14-3) arranged longitudinally at the cross position; the upper end of the screw rod (14-3) is connected to the fixing frame (12).

3. The mine vehicle brake hub disassembly assist device of claim 1 or 2, characterized in that: The base (4) is provided with a positioning hole (4-1) for placing a brake hub.

4. A mine vehicle brake hub disassembly aid as claimed in claim 1 or 2, characterised in that: The nut (9) is provided with a handle (10).

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