Dual-purpose hoisting and supporting vehicle for disassembling and assembling reciprocating compressor assembly and disassembling and assembling method

Abstract

The present application relates to a lifting and carrying dual-purpose vehicle for disassembling and assembling reciprocating compressor components, and a disassembling and assembling method. The dual-purpose vehicle is used for disassembling and assembling an air inlet valve assembly located in a 45-degree downward inclined cylinder valve cavity of a reciprocating compressor and an air outlet valve assembly located in a 45-degree upward inclined cylinder valve cavity of the reciprocating compressor. The dual-purpose vehicle comprises a walking mechanism, a lifting mechanism and a lifting and carrying mechanism arranged on the walking mechanism. The lifting mechanism is used for lifting the air outlet valve assembly to adjust the angle and move the air outlet valve assembly into or out of the 45-degree upward inclined cylinder valve cavity of the reciprocating compressor, and lifting the air inlet valve assembly to move the air inlet valve assembly to the lifting and carrying mechanism under the cooperation of the walking mechanism. The present application can meet the lifting needs of the air outlet valve assembly and the lifting, disassembling and assembling needs of the air inlet valve assembly, and is a machine with two functions, thereby improving the work efficiency. The conventional cranes, travelling cranes and gantry cranes cannot realize the lifting, disassembling and assembling of the air inlet valve assembly.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of disassembling and assembling reciprocating compressor, in particular to a lifting and supporting dual-purpose vehicle for disassembling and assembling reciprocating compressor components and a disassembling and assembling method. BACKGROUND

[0002] Large reciprocating compressors are widely used in chemical, petroleum, fertilizer, pharmaceutical, gas production and other devices. The inlet valve assembly and the exhaust valve assembly are important components of the reciprocating compressor. After the reciprocating compressor operates for a period of time, the inlet valve assembly and the exhaust valve assembly are repeatedly actuated, which can easily cause the assembly to leak due to poor sealing. Therefore, the inlet valve assembly and the exhaust valve assembly need to be disassembled, replaced or repaired. The weight of the inlet valve assembly and the exhaust valve assembly is between 6 kg and 30 kg. The inlet valve assembly is disassembled in the downwardly inclined 45° cylinder body of the reciprocating compressor, and the distance from the ground is generally between 300 mm and 500 mm. The exhaust valve assembly is arranged in the upwardly inclined 45° cylinder body of the reciprocating compressor, and the distance from the ground is generally between 1800 mm and 1900 mm. Since the reciprocating compressor is a large unit, the unit must be accurately aligned and centered before being fixed on the foundation. The traditional disassembly and assembly method of the inlet valve assembly requires workers to squat or lie down. Since the inlet valve assembly is heavy, manual disassembly or installation is very laborious, and workers can easily be injured if they are not careful. The exhaust valve assembly needs to be lifted over the head and then installed on the cylinder body, which can also easily injure workers and requires a lot of labor. SUMMARY

[0003] The purpose of the present application is to provide a lifting and supporting dual-purpose vehicle for disassembling and assembling reciprocating compressor components and a disassembling and assembling method to solve the problems raised in the background.

[0004] The present application achieves the above-mentioned purpose by the following technical solutions:

[0005] The lifting and supporting dual-purpose vehicle for disassembling and assembling reciprocating compressor components is used to disassemble and assemble the inlet valve assembly in the valve cavity of the downwardly inclined 45° cylinder body of the reciprocating compressor and the exhaust valve assembly in the valve cavity of the upwardly inclined 45° cylinder body of the reciprocating compressor. It comprises a walking mechanism, a lifting mechanism and a lifting and supporting mechanism arranged on the walking mechanism. The lifting mechanism is used to lift the exhaust valve assembly to adjust the angle and move into or out of the valve cavity of the upwardly inclined 45° cylinder body of the reciprocating compressor, and to lift the inlet valve assembly to move to the lifting and supporting mechanism under the cooperation of the movement of the walking mechanism. The lifting and supporting mechanism is used to lift the inlet valve assembly to adjust the angle and move into or out of the valve cavity of the inclined 45° cylinder body of the reciprocating compressor under the cooperation of the movement of the walking mechanism.

[0006] Preferably, the walking mechanism comprises a bottom plate, right and left support columns arranged on the bottom plate, an upper cross beam and a middle beam arranged between the right and left support columns, a plurality of universal wheels arranged at the bottom of the bottom plate, an electric wheel as a walking power source arranged at the bottom of the bottom plate, and a steering wheel arranged on the bottom plate for controlling the electric wheel.

[0007] Preferably, the lifting mechanism comprises a baffle arranged at the bottom of the upper cross beam, a circular through hole arranged on the baffle, a hook shaft arranged at the circular through hole, a rotating lifting plate sleeved on the hook shaft, a rear lifting rod arranged on the upper cross beam, a rear pulley arranged at the end of the rear lifting rod away from the upper cross beam, a front lifting rod arranged on the rotating lifting plate, a front pulley arranged at the end of the front lifting rod away from the rotating lifting plate, a transmission shaft arranged between the left and right support columns, an electric motor arranged at one end of the transmission shaft, a winding drum sleeved on the transmission shaft, a steel wire rope arranged on the winding drum, a hook connected to the end of the steel wire rope away from the winding drum through the rear pulley and the front pulley, and an electromagnetic brake arranged on the upper cross beam.

[0008] Preferably, the electromagnetic brake comprises right and left support columns arranged on the baffle, right and left pull tabs arranged on the right and left support columns respectively, right and left muscle plates connected to the right and left pull tabs respectively, right and left holding tabs arranged on the right and left muscle plates respectively, right and left pressing plates arranged at the two ends of the right and left holding tabs respectively, right and left screw rods arranged on the right and left pressing plates respectively, right and left springs sleeved on the right and left screw rods respectively, right and left hanging plates connected to the ends of the right and left screw rods away from the left holding tab respectively, and the end of the brake rope away from the hand brake is connected to the left and right pull tabs.

[0009] Preferably, the lifting and holding mechanism comprises two wheel shafts arranged between the right and left support columns, a main lifting rod arranged between the two wheel shafts, a lifting screw rod arranged on the main lifting rod, a lifting block threadedly connected to the lifting screw rod, a hand plate arranged on the lifting block for driving the lifting block to rotate, a secondary lifting rod arranged on the main lifting rod, a support plate rotating shaft arranged on the secondary lifting rod, a reinforcing plate arranged on the support plate rotating shaft, a support plate connected to the reinforcing plate arranged on the bottom plate, and a support rod and an electric hydraulic rod arranged on the reinforcing plate, and a tray arranged at the top of the support rod and the electric hydraulic rod.

[0010] The method for disassembling and assembling the reciprocating compressor assembly by using the lifting and holding dual-purpose vehicle is characterized in that when the exhaust valve assembly of the reciprocating compressor is installed, the lifting mechanism drives the exhaust valve assembly to ascend and then descend and fall into the valve cavity of the reciprocating compressor.

[0011] When the intake valve assembly of the reciprocating compressor is installed, if the weight of the intake valve assembly is greater than a set value, the intake valve assembly is moved to the lifting mechanism by the lifting mechanism, and the inclination angle and height of the intake valve assembly are adjusted by the lifting mechanism, and the intake valve assembly is installed into the valve cavity during the movement of the walking mechanism; if the weight of the intake valve assembly is less than the set value, the intake valve assembly is manually moved to the lifting mechanism, and the inclination angle and height of the intake valve assembly are adjusted by the lifting mechanism, and the intake valve assembly is installed into the valve cavity during the movement of the walking mechanism;

[0012] When the exhaust valve assembly is removed, the exhaust valve assembly is lifted by the lifting mechanism, so that the exhaust valve assembly is removed from the valve cavity of the reciprocating compressor;

[0013] When the intake valve assembly is removed, the intake valve assembly is supported by the lifting mechanism, and the intake valve assembly falls out of the valve cavity of the reciprocating compressor under the action of gravity during the movement of the walking mechanism.

[0014] The beneficial effects of the present application are:

[0015] (1) The present application can meet the lifting needs of the exhaust valve assembly, and can also meet the lifting, removal and installation of the intake valve assembly, one machine for two purposes, improving the work efficiency, and the conventional crane, travelling crane and gantry cannot realize the lifting, removal and installation of the intake valve assembly.

[0016] (2) The present application has small volume and light weight, is suitable for walking on the ground, floor, platform plate and narrow space, and is convenient to transfer.

[0017] (3) The present application has low cost, reduces the mechanical purchase cost and mechanical rental cost, and avoids the difficulty of gantry transfer.

[0018] (4) The present application is simple to operate and convenient to use, and reduces the risk of artificial lifting of the intake and exhaust valve assemblies being injured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the working state schematic view of the lifting and supporting dual-purpose vehicle for disassembling and assembling the reciprocating compressor assembly in the present application;

[0020] Figure 2 is the front view of the lifting and supporting dual-purpose vehicle for disassembling and assembling the reciprocating compressor assembly in the present application;

[0021] Figure 3 is Figure 2 the sectional view of A-A in the present application;

[0022] Figure 4 is the front view of the lifting mechanism in the present application;

[0023] Figure 5 is the left view of the hoisting mechanism in the present application;

[0024] Figure 6 is the top view of the hoisting mechanism in the present application;

[0025] Figure 7 is the Figure 4 sectional view at B-B in the present application;

[0026] Figure 8 is the front view of the holding brake;

[0027] Figure 9 is the left view of the holding brake;

[0028] Figure 10 is the top view of the holding brake;

[0029] Figure 11 is the front view of the lifting and holding mechanism in the present application;

[0030] Figure 12 is the Figure 11 sectional view at D-D in the present application;

[0031] Figure 13 is the left view of the lifting and holding mechanism in the present application;

[0032] Figure 14 is the Figure 13 sectional view at C-C in the present application;

[0033] Figure 15 is the Figure 13 sectional view at E-E in the present application;

[0034] Figure 16 is the front view of the walking mechanism in the present application;

[0035] Figure 17 is the top view of the walking mechanism in the present application;

[0036] Figure 18 is the left view of the walking mechanism in the present application.

[0037] In the figure: 1, hoisting mechanism; 2, lifting mechanism; 3, walking mechanism; 4, exhaust valve assembly; 5, reciprocating compressor; 6, intake valve assembly; 101, front pulley; 102, lifting hook; 103, compression nut; 104, first thrust bearing; 105, rotating lifting plate; 106, second thrust bearing; 107, brake; 108, baffle; 109, third thrust bearing; 110, gear box; 111, brake; 112, support plate; 113, lifting hook shaft; 114, drum; 115, positioning key; 116, motor; 117, transmission shaft; 118, sleeve; 119, steel wire rope; 120, operating lever; 121, front lifting rod; 122, rear pulley; 123, rear lifting rod; 124, hand brake; 1071, left hanging plate; 1072, right hanging plate; 1073, left rib plate; 1074, right rib plate; 1075, left spring; 1076, right spring; 1077, left pressing plate; 1078, right pressing plate; 1079, left nut; 10710, right nut; 10711, left clamping piece; 10712, right clamping piece; 10713, left pull piece; 10714, right pull piece; 10715, brake rope; 10716, right screw rod; 10717, left screw rod; 10718, right pin; 10719, left pin; 10720, right support; 10721, left support; 201, ball head; 202, handle; 203, hand disc; 204, sleeve rod; 205, lifting block; 206, fourth thrust bearing; 207, lifting screw rod; 208, connecting bolt; 209, main lifting rod; 210, wheel shaft; 211, pressing plate; 212, cotter pin; 213, bearing; 214, track wheel; 215, arc-shaped rail; 216, universal ball; 217, connecting plate; 218, support plate; 219, connecting bolt; 220, stiffener; 221, support plate; 222, flange; 223, support rod; 224, first hinged support; 225, tray; 226, second hinged support; 227, electric hydraulic rod; 228, third hinged support; 229, support plate rotating shaft; 230, connecting bolt; 231, fifth thrust bearing; 232, secondary lifting rod; 301, upper cross beam; 302, right support column; 303, left support column; 304, middle beam; 305, bottom plate; 306, seat; 307, right chassis; 308, steering wheel; 309, direction lever; 310, connecting bolt; 311, connecting plate; 312, electric wheel; 313, left chassis; 314, connecting plate; 315, universal wheel; 316, transition rod; 317, compression ring; 318, sixth thrust bearing. DETAILED DESCRIPTION

[0038] The present application will now be described in further detail. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0039] Example 1

[0040] like Figures 1-18 As shown, a reciprocating compressor assembly disassembly and assembly lifting and supporting vehicle is used for disassembling and assembling the intake valve assembly 6 located in the lower 45° inclined cylinder valve chamber of the reciprocating compressor 5 and the exhaust valve assembly 4 located in the upper 45° inclined cylinder valve chamber of the reciprocating compressor 5. The vehicle is characterized by including a traveling mechanism 3, and a lifting mechanism 1 and a lifting and supporting mechanism 2 mounted on the traveling mechanism 3. The lifting mechanism 1 is used to lift the exhaust valve assembly 4 with the traveling mechanism 3 to adjust its angle and move it into or out of the upper 45° inclined cylinder valve chamber of the reciprocating compressor 5, and to lift the intake valve assembly 6 to the lifting and supporting mechanism 2. The lifting and supporting mechanism 2 is used to lift the intake valve assembly 6 with the traveling mechanism 3 to adjust its angle and move it into or out of the upper 45° inclined cylinder valve chamber of the reciprocating compressor 5.

[0041] As a further embodiment of the present invention, the walking mechanism 3 includes a base plate 305, on which a right support column 302 and a left support column 303 are provided. An upper crossbeam 301 and a middle beam 304 are provided between the right support column 302 and the left support column 303. A plurality of universal wheels 315 are provided at the bottom of the base plate 305. An electric wheel 312 serving as a power source for walking is provided at the bottom of the base plate 305. A steering wheel 308 for controlling the electric wheel 312 is provided on the base plate 305.

[0042] In the above embodiment, the upper cross beam 301 is made of channel steel, a through hole is formed in the middle of the web of the channel steel for mounting the hook shaft 113. The right support column 302 and the left support column 303 are made of channel steel, a through hole is formed in the upper part of each for mounting the transmission shaft 117. The middle beam 304 is made of channel steel, a through hole is formed in the middle of the web of the channel steel for mounting the lifting bolt 203. The four universal wheels 315 are installed at the four corners below the bottom plate 305. The bottom plate 305 is made of 20mm thick steel plate and serves as counterweight. A stepped hole is formed in the middle of the bottom plate 305 near the right support column 302 and the left support column 303 for mounting the transition rod 316 and the sixth thrust bearing 318. Four bolt holes are formed around the stepped hole for mounting the pressure ring 317. Four through holes are drilled near the left two universal wheels 315 for mounting the seat 306. Three through holes are drilled in the bottom plate 305 in front of the right side of the seat 306, two holes are used to mount the hand brake 124 and one hole is used to pass the brake rope 10715. The right chassis 307 and the left chassis 313 are made of channel steel. The connecting plates 314 are made of steel plate, a total of four, each with a through hole in the four corners for mounting the universal wheels 315. The four connecting plates 314 are respectively welded to the lower part of the right chassis 307 and the left chassis 313. The four universal wheels 315 are respectively installed below the connecting plates 314 and connected by bolts. One left chassis 313 and one right chassis 307 are respectively welded to the bottom plate 305, symmetrically distributed on both sides. The upper cross beam 301 is welded to the top of the right support column 302 and the left support column 303. The middle beam 304 is welded to the middle part between the right support column 302 and the left support column 303. Then the welded upper cross beam 301, middle beam 304, right support column 302 and left support column 303 are welded to the bottom plate 305. The transition rod 316 is thin at one end and thick at the other end, is sleeved into the pressure ring 317, is connected with the direction rod 309, is installed with the sixth thrust bearing 318, is inserted into the completed stepped hole of the bottom plate 305, is welded with the connecting plate 311 at the lower part, and the pressure ring 317 is fixed to the bottom plate 305 by bolts. The direction rod 309 is welded with the transition rod 316 at the lower part and is installed with the steering wheel 308 at the upper part. The steering wheel 308 is φ20mm and is made of a round ring, is cut into a Z-shaped type with a 16mm thick steel plate in the middle and is welded with the round ring, is supported and welded with a connecting ring in the middle for connection with the direction rod 309, and then is protected with a hot melt rubber sleeve. The electric wheel 312 serves as the walking power source of the whole machine, has a gearbox and a brake system that stops when power is off. The electric wheel is installed below the connecting plate 311 and is fixed by the connecting bolt 310. The seat 306 is installed on the bottom plate 305 and is fixed by connecting bolts.

[0043] As a further scheme of the present application, the hoisting mechanism 1 comprises a baffle 108 provided at the bottom of the upper cross beam 301, wherein a circular through hole is provided on the baffle 108, a hook shaft 102 is provided at the circular through hole, a rotating lifting plate 105 is sleeved on the hook shaft 102, a rear lifting rod 123 is provided on the upper cross beam 301, a rear pulley 122 is provided at the end of the rear lifting rod 123 away from the upper cross beam 301, a front lifting rod 121 is provided on the rotating lifting plate 105, a front pulley 101 is provided at the end of the front lifting rod 121 away from the rotating lifting plate 105, a transmission shaft 117 is provided between the left support column 303 and the right support column 302, an electric machine 116 is provided at one end of the transmission shaft 117, a winding drum 114 is sleeved on the transmission shaft 117, a steel wire rope 119 is provided on the winding drum 114, the steel wire rope 119 is connected with the hook 102 after passing through the rear pulley 122 and the front pulley 101 away from the winding drum 114, an electromagnetic brake 107 is provided on the upper cross beam 301, a hand brake 124 is provided on the bottom plate 305, a brake rope 10715 is provided on the hand brake 124, and the other end of the brake rope 10715 away from the hand brake 124 is connected with the electromagnetic brake 107.

[0044] In the above embodiment, the baffle plate 108 is made of a circular steel plate with a circular hole in the middle for mounting the hook shaft 113. The baffle plate 108 is welded to the lower opening of the upper beam 301, and the hole of the baffle plate 108 should be aligned with the center line of the hole of the upper beam 301. The rotating baffle plate 105 is made of a steel plate in the shape of a Chinese character "K" with a circular hole in the middle and a small end face for welding the operating rod 120. The third thrust bearing 109 is sleeved on the hook shaft 113, and then the hook shaft 113 passes through the baffle plate 108 and the middle hole of the upper beam 301. The second thrust bearing 106 is sleeved, and then passes through the middle hole of the rotating baffle plate 105. The first thrust bearing 104 is sleeved, and finally the compression nut 103 is tightened. The rear hanger 123 is welded to a head square plate at one end, and the rear pulley 122 is installed on the head square plate. The other end of the rear hanger 123 is welded to the left side of the upper beam 301. The front hanger 121 is welded to a head square plate at one end, and the front pulley 101 is installed on the head square plate. The other end of the front hanger 121 is welded to the right side of the rotating baffle plate 105. The support plate 112 is made of a steel plate in the shape of a square, and there are two of them. A circular hole is formed in the middle for mounting the transmission shaft 117. The two support plates 112 are installed on the inner sides of the right support column 302 and the left support column 303, respectively, and the middle holes are aligned with the center lines of the upper holes of the support columns. The reel 114 is sleeved in the sleeve pipe 118, and then the reel 114 and the sleeve pipe 118 are fixed together by two positioning keys 115. The sleeve pipe 118 is placed in the middle of the two installed support plates 112, and the transmission shaft 117 passes through the hole from the outside of the right support column 302, through the right support plate 112, and then through the sleeve pipe 118, and finally passes through the left support column 303. The motor 116 is installed at the right end of the transmission shaft 117, and the gear box 110 and the brake 111 are integrated. They are installed at the left end of the transmission shaft 117. The brake 111 is a de-energized brake and a energized release design. One end of the steel wire rope 119 is fixed to the reel 114, and the excess steel wire rope 119 is wound on the reel 114. The other end of the steel wire rope 119 passes through the rear pulley 122 and the front pulley 101 in turn, and then the hook 102 is tied to the end. The assembled brake 107 is installed. The upper parts of the left hanging plate 1071 and the right hanging plate 1072 are welded to the lower surface of the upper beam 301, so that the left clamping piece 10711 and the right clamping piece 10712 tightly clamp the hook shaft 113 to prevent the hook 102 from swinging left and right. The hand brake 124 is installed on the bottom plate 305. One end of the brake rope 10715 is tied to the upper hole of the left clamping piece 10713, and the other end is tied to the upper hole of the right clamping piece 10714. Another brake rope is used, one end of which is tied to the middle of the brake rope 10715, and the other end is connected to the hand brake 124.

[0045] As a further scheme of the present application, the holding brake 107 comprises right and left supports 10720 and 10721 arranged on the baffle 108, right and left pull tabs 10714 and 10713 arranged on the right and left supports 10720 and 10721 respectively, right and left muscle plates 1074 and 1073 connected with the right and left pull tabs 10714 and 10713 respectively, right and left holding tabs 10712 and 10711 arranged on the right and left muscle plates 1074 and 1073 respectively, right and left pressing plates 1078 and 1077 arranged on the right and left holding tabs 10712 and 10711 respectively, right and left screw rods 10716 and 10717 arranged on the right and left pressing plates 1078 and 1077 respectively, right and left springs 1076 and 1075 sleeved on the right and left screw rods 10716 and 10717 respectively, right and left hanging plates 1072 and 1071 connected with the right and left screw rods 10716 and 10717 respectively, and the brake rope 10715 connected with the left and right pull tabs 10713 and 10714 at an end away from the hand brake 124.

[0046] In the above embodiment, the brake 107 is composed of two parts. The left and right hanging plates 1071, 1072 are the supporting bodies of the brake 107 and are the connecting parts with the machine. Each of the left and right hanging plates 1071, 1072 has a through hole at each end for mounting the right and left screw rods 10716, 10717, respectively, and has an I-shaped long hole in the middle lower part for passing the left and right pull pieces 10713, 10714, respectively. The left and right rib plates 1073, 1074 are arc-shaped reinforcing plates welded to the left and right embracing pieces 10711, 10712, respectively, to prevent the left and right embracing pieces 10711, 10712 from being deformed under stress. The left and right pressing plates 1077, 1078 are each two pieces, for a total of four pieces, welded to the two ends of the left and right embracing pieces 10711, 10712, respectively. The upper part of each pressing plate has a through hole for mounting the right and left screw rods 10716, 10717, respectively. The left and right embracing pieces 10711, 10712 are arc-shaped and have the same curvature as the hook shaft 113 and are important components of the brake 107, which can embrace or release the hook shaft 113. The left and right pull pieces 10713, 10714 are made of steel plate punched and formed, one end of each being welded to the middle of the embracing piece and the other end being mounted on the right or left support 10720, 10721 and pinned by the right or left pin 10718, 10719. The right and left supports 10720, 10721 are composed of a bottom plate and two side plates, each of which has a through hole for mounting the right or left pin 10718, 10719 to connect the left or right pull piece 10713, 10714 thereto. The two right and left screw rods 10716, 10717 are respectively inserted into the through holes of the left and right hanging plates 1071, 1072, then into the left and right springs 1075, 1076, and then into the through holes of the left and right pressing plates 1077, 1078, and finally locked by the left and right nuts 1079, 10710. One end of the brake rope 10715 is tied to the upper hole of the left pull piece 10713 and the other end is tied to the upper hole of the right pull piece 10714. Another brake rope has one end tied to the middle of the brake rope 10715 and the other end connected to the hand brake 124.

[0047] As a further scheme of the present application, the lifting mechanism 2 comprises two wheel shafts 210 arranged between the right support column 302 and the left support column 303, a main lifting rod 209 arranged between the two wheel shafts 210, a lifting screw rod 207 arranged on the main lifting rod 209, a lifting block 205 threadedly connected to the lifting screw rod 207, a hand disc 203 arranged on the lifting block 205 to drive the lifting block 205 to rotate, a secondary lifting rod 232 arranged on the main lifting rod 209, a support plate rotating shaft 229 arranged on the secondary lifting rod 232, a reinforcing plate 220 arranged on the support plate rotating shaft 229, a support plate 218 arranged on the bottom plate 305 and connected to the reinforcing plate 220, a support rod 223 and an electric hydraulic rod 227 arranged on the reinforcing plate 220, and a tray 225 arranged on the top of the support rod 223 and the electric hydraulic rod 227.

[0048] In the above embodiment, the main lifting rod 209 is made of solid square steel, a circular blind hole is opened at the top for inserting the lifting screw rod 207, a circular through hole is opened at the top side for installing the connecting bolt 208, a circular through hole with the same diameter as the wheel shaft 210 is opened at each side near the two ends for installing the upper and lower wheel shafts 210. There are two wheel shafts 210 in total, a circular through hole is opened at each end near the end for installing the split pin 212. There are four track wheels 214 in total, a stepped hole is opened in the middle of the track wheel 214 for installing the bearing 213 and the wheel shaft 210. There are four pressure plates 211 in total, a circular through hole is opened in the middle of each plate for pressing the track wheel 214. Pass the two wheel shafts 210 into the upper and lower side holes of the main lifting rod 209, then pass the four pressure plates 211 into the four ends of the wheel shaft 210, then install the four track wheels 214 at the ends of the wheel shaft 210, then pass the four bearings 213 into the wheel shaft 210 and place them inside the track wheel 214. Place the four track wheels 214 that have been installed into the slots of the right support column 302 and the left support column 303, press the pressure plate 211 against the track wheel 214, then install the split pin 212 to fix the pressure plate 211. The lifting screw rod 207 and the lifting block 205 are used together, and a high-density ball screw is adopted. Place the fourth thrust bearing 206 at the upper middle circular through hole of the middle beam 304, pass the lifting screw rod 207 into the fourth thrust bearing 206 and the circular through hole of the middle beam 304, insert the lower end of the lifting screw rod 207 into the circular blind hole at the top of the main lifting rod 209, and fix it with the connecting bolt 208. The sleeve rod 204 is made of steel pipe, the lower part is connected with the lifting block 205, and the upper part is connected with the hand disc 203. The hand disc 203 is cut from stainless steel plate and is polished and polished, and is hollowed out, a handle 202 is installed on the top, and a ball head 201 is installed on the handle 202. The hand disc 203 is connected with the sleeve rod 204. The secondary lifting rod 232 is made of solid square steel, a circular blind hole is opened at the top for inserting the support plate rotating shaft 229, a threaded hole is opened at the bottom of the blind hole for installing the connecting bolt 230. The secondary lifting rod 232 is face-welded with the main lifting rod 209. The support plate rotating shaft 229 is made of solid round steel, a circular through hole is opened at the end of the support plate rotating shaft 229 for installing the connecting bolt 230. The fifth thrust bearing 231 is sleeved on the support plate rotating shaft 229, the lower end of the support plate rotating shaft 229 is inserted into the circular blind hole at the top of the secondary lifting rod 232, and is pressed tightly with the connecting bolt 230. The stiffener 220 is processed into a long strip from a steel plate and is vertically welded to the lower surface of the support plate 221. The support plate 221 is made of a steel plate and has a "fly swatter" shape. After the stiffener 220 and the support plate 221 are welded, the small end is welded to the support plate rotating shaft 229. The channel steel is bent into an arc-shaped rail 215, an arc-shaped I-shaped slot is opened at the upper part for the universal ball 216 to rotate, and the arc-shaped rail 215 is installed with the opening downward on the right side of the bottom plate 305.The connecting plate 217 is installed on the screw rod above the universal ball 216, and is pressed by a nut, and is used to be connected with the support plate 218. The support plate 218 is processed into a long strip shape by using a steel plate, and there are two support plates in total, and a circular through hole is formed at one end of each of the support plates, and the two support plates 218 are welded at one end on the connecting plate 217, and the other end is respectively added on the two sides of the stiffening plate 220, and is connected and fastened by the connecting bolts 219. The support rod 223 is made of a steel pipe, and there are two support rods in total, and the bottom is the connecting flange 222, which is used to be connected with the support plate 221, and the upper part is the connecting head, which is used to be connected with the first hinge support 224. The electric hydraulic rod 227 is composed of a motor and a hydraulic cylinder, and there are connecting heads on the upper and lower parts, which are respectively connected with the second hinge support 226 and the third hinge support 228. The second hinge support 226 is installed on the support plate 221, and is connected by bolts. The first hinge support 224 and the third hinge support 228 are installed below the tray 225, and are connected by bolts. The tray 225 is in a disc shape, and has a stepped hole in the inside, and the height of the tray 225 is preferably 1 / 3 of the height of the air inlet and exhaust valve assembly, so as to prevent the air inlet and exhaust valve assembly from falling when the air inlet and exhaust valve assembly is adjusted to an inclined angle. The tray 225 is connected with the two support rods 223 and the electric hydraulic rod 227 below.

[0049] The method for disassembling and assembling the reciprocating compressor assembly by using the lifting and carrying dual-purpose vehicle is characterized in that:

[0050] When the exhaust valve assembly 4 of the reciprocating compressor 5 is installed, the lifting mechanism 1 drives the exhaust valve assembly 4 to rise and then to fall and to fall into the valve cavity of the reciprocating compressor 5. The operator sits on the seat 306, starts the electric wheel 312, slowly approaches the reciprocating compressor 5 to be repaired by holding the steering wheel 308, determines the air inlet valve assembly 6 or the exhaust valve assembly 4 that needs to be removed or installed, adjusts the angle of the lifting mechanism 1 or the lifting and lifting mechanism 2, and then turns off the power of the electric wheel 312. The machine is in a braking state to prevent the machine from moving as a whole during lifting. When the exhaust valve assembly 4 is installed, the exhaust valve assembly 4 is at an angle of 45° above the cylinder of the reciprocating compressor 5, and the lifting mechanism 1 is used. The motor 116 is reversed to slowly lower the lifting hook 102, and the exhaust valve assembly 4 is lifted by the lifting hook 102. Then the motor 116 is adjusted to forward rotation, the steel wire rope 119 is wound, the lifting hook 102 lifts the exhaust valve assembly 4 slowly, the hand brake 124 is tightened to release the brake 107, the angle of the lifting hook 102 is adjusted by the operating rod 120, and when the exhaust valve assembly 4 is above the valve cavity, the hand brake 124 is released to make the brake 107 in a tight state. Slowly lower the exhaust valve assembly into the valve cavity, remove the lifting hook 102 and rotate it, turn off the power of the motor 116, and the brake 111 is de-energized to brake, so as to prevent the steel wire rope 119 in the winding drum 114 from falling. The exhaust valve assembly 4 is lifted into place.

[0051] When the air inlet valve assembly 6 is installed on the reciprocating compressor 5, if the weight of the air inlet valve assembly 6 is greater than a set value, the air inlet valve assembly 6 is moved to the lifting mechanism 2 by the lifting mechanism 1, and the angle and height of the air inlet valve assembly 6 are adjusted by the lifting mechanism 2, and the air inlet valve assembly 6 is installed into the valve cavity during the movement of the walking mechanism 3; if the weight of the air inlet valve assembly 6 is less than the set value, the air inlet valve assembly 6 is manually moved to the lifting mechanism 2, and the angle and height of the air inlet valve assembly 6 are adjusted by the lifting mechanism 2, and the air inlet valve assembly 6 is installed into the valve cavity during the movement of the walking mechanism 3; when the air inlet valve assembly 6 is installed, the air inlet valve assembly 6 is at the 45° angle below the cylinder of the reciprocating compressor 5, so the traditional lifting machinery such as crane, travelling crane and gantry crane cannot be used for lifting, and the lifting mechanism 2 of the mechanical device should be used for installing the air inlet valve assembly; when the weight of the air inlet valve assembly 6 is relatively heavy, the lifting mechanism 1 is used in cooperation with the lifting mechanism 2 for installation. The motor 116 is started in reverse rotation, the hook 102 is slowly lowered, the air inlet valve assembly 6 is hung by the hook 102, the motor 116 is adjusted to be in forward rotation, the steel wire rope 119 is wound, the hook 102 with the air inlet valve assembly 6 is slowly lifted, the hand brake 124 is pulled to release the brake 107, the angle of the hook 102 is adjusted by the operating rod 120, when the air inlet valve assembly 6 is above the tray 225, the air inlet valve assembly 6 is slowly lowered and placed into the tray 225, the hook 102 is removed and the steel wire rope 119 is wound to make the hook at the upper part, the hand brake 124 is released to make the brake 107 in the clamping state, the lifting mechanism 1 is prevented from rotating left and right, the power of the motor 116 is turned off, the brake 111 is de-energized to brake, and the steel wire rope 119 in the winding drum 114 is prevented from falling. After the air inlet valve assembly 6 is placed into the tray 225, the power of the electric hydraulic rod 227 is turned on, the hydraulic rod is slowly extended, the tray 225 drives the air inlet valve assembly 6 to be inclined, when the inclination is 45°, the power of the electric hydraulic rod 227 is temporarily stopped, the height of the tray 225 and the air inlet valve assembly 6 is adjusted by rotating the hand disc 203, the electric wheel 312 is started to slowly move the air inlet valve assembly 6 to enter the valve cavity, after the air inlet valve assembly 6 completely enters the valve cavity, the mechanical device is exited, and the installation of the air inlet valve assembly 6 is completed; when the weight of the air inlet valve assembly 6 is less than the set value, the air inlet valve assembly 6 is placed into the tray 225 manually, the power of the electric hydraulic rod 227 is turned on, the hydraulic rod is slowly extended, the tray 225 drives the air inlet valve assembly 6 to be inclined, when the inclination is 45°, the power of the electric hydraulic rod 227 is temporarily stopped, the height of the tray 225 and the air inlet valve assembly 6 is adjusted by rotating the hand disc 203, the electric wheel 312 is started to slowly move the air inlet valve assembly 6 to enter the valve cavity, after the air inlet valve assembly 6 completely enters the valve cavity, the mechanical device is exited, the electric hydraulic rod 227 is retracted, the tray 225 is in the horizontal state, and the installation of the air inlet valve assembly 6 is completed.

[0052] When the exhaust valve assembly 4 is removed, the hoisting mechanism 1 drives the exhaust valve assembly 4 to rise, so that the exhaust valve assembly 4 is removed from the valve cavity of the reciprocating compressor 5;

[0053] When the intake valve assembly 6 is removed, the lifting mechanism 2 supports the intake valve assembly 6, and the traveling mechanism 3 moves, so that the intake valve assembly 6 falls from the valve cavity of the reciprocating compressor 5 under the action of gravity.

[0054] The above embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A reciprocating compressor assembly disassembly and assembly lifting and assembly vehicle, used for disassembling and assembly of the intake valve assembly (6) located in the lower 45° inclined cylinder valve chamber of the reciprocating compressor (5) and the exhaust valve assembly (4) located in the upper 45° inclined cylinder valve chamber of the reciprocating compressor (5), characterized in that, The system includes a traveling mechanism (3), a hoisting mechanism (1) and a lifting and supporting mechanism (2) mounted on the traveling mechanism (3). The hoisting mechanism (1) is used to hoist the exhaust valve assembly (4) into or out of the reciprocating compressor (5) at an adjustable angle under the movement of the traveling mechanism (3), and to hoist the intake valve assembly (6) onto the lifting and supporting mechanism (2). The lifting and supporting mechanism (2) is used to lift the intake valve assembly (6) into or out of the reciprocating compressor (5) at an adjustable angle under the movement of the traveling mechanism (3).

2. The reciprocating compressor assembly disassembly and assembly lifting and supporting vehicle according to claim 1, characterized in that, The walking mechanism (3) includes a base plate (305), on which a right support column (302) and a left support column (303) are provided. An upper crossbeam (301) and a middle beam (304) are provided between the right support column (302) and the left support column (303). Several universal wheels (315) are provided at the bottom of the base plate (305). Electric wheels (312) serving as the power source for walking are provided at the bottom of the base plate (305). A steering wheel (308) for controlling the electric wheels (312) is provided on the base plate (305).

3. The reciprocating compressor assembly disassembly and assembly lifting and supporting vehicle according to claim 2, characterized in that, The hoisting mechanism (1) includes a baffle (108) located at the bottom of the upper crossbeam (301). The baffle (108) has a circular through hole, and a hook (102) shaft is located at the circular through hole. A rotating hoisting plate (105) is sleeved on the hook (102) shaft. A rear hoisting rod (123) is located on the upper crossbeam (301). A rear pulley (122) is located at the end of the rear hoisting rod (123) away from the upper crossbeam (301). A front hoisting rod (121) is located on the rotating hoisting plate (105). A front pulley (101) is located at the end of the front hoisting rod (121) away from the rotating hoisting plate (105). A transmission mechanism is provided between the left support column (303) and the right support column (302). A shaft (117) is provided, one end of which is equipped with a motor (116). A drum (114) is fitted on the shaft (117). A wire rope (119) is provided on the drum (114). The end of the wire rope (119) away from the drum (114) passes through the rear pulley (122) and the front pulley (101) and is connected to a hook (102). A brake (107) is provided on the upper crossbeam (301). A handbrake (124) is provided on the base plate (305). A brake rope (10715) is provided on the handbrake (124). The other end of the brake rope (10715) away from the handbrake (124) is connected to the brake (107).

4. The reciprocating compressor assembly disassembly and assembly lifting and supporting vehicle according to claim 3, characterized in that, The brake (107) includes a right support (10720) and a left support (10721) mounted on a baffle (108). The right support (10720) and the left support (10721) are respectively provided with a right pull tab (10714) and a left pull tab (10713). The right pull tab (10714) and the left pull tab (10713) are respectively connected to a right stiffening plate (1074) and a left stiffening plate (1073). The right stiffening plate (1074) and the left stiffening plate (1073) are respectively provided with a right clamping plate (10712) and a left clamping plate (10711). Both ends of the right clamping plate (10712) and the left clamping plate (10711) are respectively provided with right pressure plates (…). The right pressure plate (1078) and the left pressure plate (1077) are respectively provided with a right screw (10716) and a left screw (10717). The right screw (10716) and the left screw (10717) are respectively fitted with a right spring (1076) and a left spring (1075). The right screw (10716) and the left screw (10717) are respectively connected to a right hanging plate (1072) and a left hanging plate (1071) at the ends away from the left clamping plate (10711). The brake rope (10715) is connected to the left pull plate (10713) and the right pull plate (10714) at the end away from the handbrake (124).

5. The reciprocating compressor assembly disassembly and assembly lifting and supporting vehicle according to claim 3, characterized in that, The lifting and supporting mechanism (2) includes two axles (210) located between the right support column (302) and the left support column (303). A main lifting rod (209) is provided between the two axles (210). A lifting screw (207) is provided on the main lifting rod (209). A lifting block (205) is threadedly connected to the lifting screw (207). A hand disc (203) for driving the lifting block (205) to rotate is provided on the lifting block (205). The main lifting rod (209) The upper part is provided with a secondary lifting rod (232), the secondary lifting rod (232) is provided with a support plate rotating shaft (229), the support plate rotating shaft (229) is provided with a stiffening plate (220), the bottom plate (305) is provided with a support plate (218) connected to the stiffening plate (220), the stiffening plate (220) is provided with a support rod (223) and an electric hydraulic rod (227), and the top of the support rod (223) and the electric hydraulic rod (227) is provided with a tray (225).

6. A method for disassembling and assembling a reciprocating compressor assembly using the lifting and hauling vehicle described in any one of claims 1-5, characterized in that: When installing the exhaust valve assembly (4) of the reciprocating compressor (5), the hoisting mechanism (1) drives the exhaust valve assembly (4) to rise and then fall into the valve chamber of the reciprocating compressor (5); When installing the intake valve assembly (6) of the reciprocating compressor (5), if the weight of the intake valve assembly (6) is greater than the set value, the intake valve assembly (6) is moved to the lifting mechanism (2) using the hoisting mechanism (1), and the tilt angle and height of the intake valve assembly (6) are adjusted using the lifting mechanism (2). The intake valve assembly (6) is installed into the valve cavity during the movement of the traveling mechanism (3). If the weight of the intake valve assembly (6) is less than the set value, the intake valve assembly (6) is moved to the lifting mechanism (2) manually, and the tilt angle and height of the intake valve assembly (6) are adjusted using the lifting mechanism (2). The intake valve assembly (6) is installed into the valve cavity during the movement of the traveling mechanism (3). When removing the exhaust valve assembly (4), the lifting mechanism (1) is used to lift the exhaust valve assembly (4) so ​​that the exhaust valve assembly (4) is removed from the valve chamber of the reciprocating compressor (5); Remove the intake valve assembly (6), and use the lifting and supporting mechanism (2) to support the intake valve assembly (6). During the movement of the walking mechanism (3), the intake valve assembly (6) falls out of the valve chamber of the reciprocating compressor (5) under the action of gravity.

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