Z-axis lifting device

Abstract

The utility model relates to a Z-axis lifting device which comprises an X-axis component, a Y-axis component and a Z-axis component, the X-axis component comprises a Y-axis motor component, the Y-axis component comprises a Y-axis lifting frame, and the Z-axis component comprises a Z-axis mounting plate, a servo motor and a Z-axis chain set. A Y-axis motor component of the X-axis component is fixedly connected with a Y-axis bottom plate of the Y-axis component through bolts, a Z-axis mounting plate is mounted on a Y-axis top plate of the Y-axis component, a Z-axis chain set is connected with a servo motor, and a power connecting plate of a Y-axis lifting frame is fixedly connected with a lifting frame connecting plate of the Z-axis chain set through bolts. By the adoption of the Z-axis lifting device and the chain driving set and composite roller bearing set lifting device, the height of equipment is kept unchanged in the operation process, the total height of the equipment can be effectively reduced, the equipment always operates at a low height, the problem that the Z-axis is too high is effectively solved, and the Z-axis lifting device has a wide application range.

Description

Technical Field

[0001] The utility model relates to the field of pipe pile production, in particular to the field of a tensioning process of prestressed pipe piles, and specifically refers to a Z-axis lifting device. Background Art

[0002] In the existing technology, the Z-axis of the tensioning machine usually uses a cylinder or a screw lift to lift the jack component. During the tensioning operation, the top plate above the cylinder or the screw lift on the top of the equipment will rise or fall accordingly; the disadvantage is that the Z-axis height is too high and it is easy to collide with the pipe mold hoisted above the workshop.

[0003] Currently, the chain tensioning devices on other equipment usually use a tensioning wheel component in the middle or a telescopic tensioning device at the position of the driven wheel group; the disadvantages are: the tensioning devices distributed on the left and right sides of the sprocket are prone to adjustment asynchrony, causing the chain to easily deviate; secondly, a larger installation space is required.

[0004] At present, the anti-swing method of the jack components is usually a rigid connection, a hard spring connection, a no connection or a guide wheel clamping method; the disadvantages are: the rigid connection or the hard spring connection is too rigid to adjust the posture of the jack components during the automatic positioning of the equipment; the guide wheel clamping method is prone to deformation of the guide wheel shaft or the guide wheel runs out of the column during actual operation, which has no anti-swing effect; the no connection method cannot control the swing of the jack during the automatic positioning process.

[0005] Currently, chain tensioning devices on other equipment usually use a tensioning wheel component in the middle or a telescopic tensioning device at the position of the driven wheel group. The disadvantages are: the tensioning devices distributed on the left and right sides of the sprocket are prone to adjustment asynchrony, causing the chain to deviate easily; secondly, a larger installation space is required; the tensioning device is not firm and is easy to shake, and needs to be frequently tensioned and adjusted. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a Z-axis lifting device which is simple to maintain, convenient to adjust, and has a wide range of applications.

[0007] In order to achieve the above purpose, the Z-axis lifting device of the present invention is as follows:

[0008] The main features of the Z-axis lifting device are that the device includes an X-axis component, a Y-axis component and a Z-axis component, the X-axis component includes a Y-axis motor component, the Y-axis component includes a Y-axis lifting frame, the Z-axis component includes a Z-axis mounting plate, a servo motor and a Z-axis chain group, the Y-axis motor component of the X-axis component and the Y-axis bottom plate of the Y-axis component are fixed by bolts, the Z-axis mounting plate is installed on the Y-axis top plate of the Y-axis component, the Z-axis chain group is connected to the servo motor, the power connecting plate of the Y-axis lifting frame is fixed to the lifting frame connecting plate of the Z-axis chain group by bolts, the servo motor drives the lifting frame connecting plate of the Z-axis chain group to move up and down, and the lifting frame connecting plate drives the Y-axis lifting frame to move up and down.

[0009] Preferably, the Y-axis component also includes a Y-axis frame weldment, a side clamping and positioning group, a compression spring group, a Z-axis driven wheel group and a guide wheel group. The side clamping and positioning groups are installed on both sides of the Y-axis lifting frame, the compression spring group is installed above the Y-axis lifting frame, and the Z-axis driven wheel group is installed on the Y-axis frame weldment; the Y-axis lifting frame includes an elevator power frame, a cylinder seat and a power connecting plate, the side clamping and positioning group includes a linear bearing and a cylinder, the guide wheel group includes a composite bearing seat and a composite bearing, the linear bearing is installed and fixed in the hole on the elevator power frame, the cylinder is installed on the cylinder seat, and the power connecting plate is connected to the composite bearing seat of the guide wheel group by bolts; the Y-axis component has a guide wheel group located on both sides and grouped together up and down, and the composite bearing rises and falls close to the inner side of the four forklift-specific channel steels on the Y-axis frame weldment.

[0010] Preferably, the Y-axis frame weldment includes a Y-axis top plate, a forklift-specific channel steel and a Y-axis bottom plate, the forklift-specific channel steel is welded to the Y-axis bottom plate, and the Y-axis top plate is installed on the forklift-specific channel steel.

[0011] Preferably, the Y-axis lifting frame includes a lifting frame top plate, a spring outer retaining ring, and a spring support. The side clamping and positioning group also includes a side clamping frame. The linear bearing and cylinder are installed on the side clamping frame. The side clamping and positioning group moves synchronously inward or outward under the push of the cylinders on the left and right sides.

[0012] Preferably, the Z-axis component includes a Z-axis driving wheel group, a coupling and a reducer, and the Z-axis driving wheel group, coupling and reducer are all installed on the Z-axis mounting plate, the Z-axis driving wheel group is connected to the coupling, and the reducer is connected to the coupling.

[0013] Preferably, the Z-axis chain group includes a Z-axis chain and a lifting frame connecting plate, and the Z-axis chain group also includes a pin shaft, a cotter pin, a chain connecting plate and a chain tensioning group. The Z-axis chain is connected to the lifting frame connecting plate and the chain connecting plate, and the lifting frame connecting plate and the chain connecting plate are connected through a chain tensioning group. The cotter pin is inserted into the pin shaft, and the Z-axis chain tensioning rotates the left-handed threaded sleeve on the chain tensioning group to drive the left-handed threaded tensioning head and the right-handed threaded tensioning head to perform synchronous relative tensioning or reverse loosening actions.

[0014] Preferably, the Y-axis motor component includes a Y-axis motor group, a Y-axis motor base, a chain, a pin, a cotter pin, a chain connecting plate, a chain tensioning group, a Y-axis driven wheel base and a Y-axis driven wheel base. The Y-axis motor base and the Y-axis driven wheel base are welded to the X-axis component, the Y-axis motor group is installed on the Y-axis motor base, and the Y-axis driven wheel base is installed on the Y-axis driven wheel base. The two ends of the chain are connected to the chain connecting plate through a pin, and the cotter pin is inserted on the pin. The chain connecting plates at both ends are connected to the chain tensioning group through a pin.

[0015] Preferably, the Y-axis motor group includes a Y-axis motor sprocket, a flat key, a reducer, a servo motor, a bearing retaining ring for the Y-axis motor shaft, a bearing retaining ring for the Y-axis motor hole, a Y-axis motor deep groove ball bearing, a Y-axis motor sleeve and a transmission shaft. The Y-axis motor deep groove ball bearings are respectively mounted on the left and right sides of the Y-axis motor base. A group of Y-axis motor shaft bearing retaining rings and Y-axis motor hole bearing retaining rings are respectively fixed on the left and right sides of the Y-axis motor deep groove ball bearing. The transmission shaft is mounted on the left and right Y-axis motor deep groove ball bearings. The transmission shaft and the Y-axis motor sprocket are connected by a flat key. The servo motor is connected to the reducer, and the reducer is connected to the transmission shaft. The servo motor drives the reducer to perform transmission motion, and the reducer drives the transmission shaft to perform transmission motion. One side of the Y-axis motor sprocket is positioned by the shaft shoulder of the transmission shaft, and the other side is fixed by the Y-axis motor sleeve. The reducer is mounted on the Y-axis motor base.

[0016] Preferably, the Y-axis driven wheel assembly includes a Y-axis driven sprocket, a Y-axis driven shaft sleeve, a Y-axis driven shaft, a Y-axis driven deep groove ball bearing, a Y-axis driven shaft bearing retaining ring, a Y-axis driven hole bearing retaining ring and a Y-axis driven wheel seat, the Y-axis driven deep groove ball bearings are respectively installed on the left and right sides of the Y-axis driven wheel seat, the Y-axis driven shaft is installed on the left and right sides of the Y-axis driven deep groove ball bearing, the Y-axis driven sprocket is installed on the Y-axis driven shaft, the left and right sides of the Y-axis driven sprocket are each separated by a Y-axis driven shaft sleeve, so that the Y-axis driven sprocket is placed in the center of the Y-axis driven wheel seat, the left side of the Y-axis driven deep groove ball bearing is fixed by a Y-axis driven hole bearing retaining ring, and the right side of the Y-axis driven deep groove ball bearing is fixed by a Y-axis driven shaft bearing retaining ring and a Y-axis driven hole bearing retaining ring. Preferably, the chain tensioning group includes a left-handed threaded tensioning head, a locking nut, a left-handed threaded sleeve, and a right-handed threaded tensioning head. The chain tensioning is achieved by rotating the left-handed threaded sleeve on the chain tensioning group to drive the left-handed threaded tensioning head and the right-handed threaded tensioning head to perform synchronous relative tensioning or reverse loosening actions.

[0017] Preferably, the Z-axis driven wheel assembly includes a Z-axis driven wheel seat, a bearing retaining ring for a Z-axis driven hole, a Z-axis driven shaft, a Z-axis driven deep groove ball bearing, a Z-axis driven shaft sleeve, a Z-axis driven sprocket and a bearing retaining ring for a Z-axis driven shaft. A Z-axis driven deep groove ball bearing is installed on each side of the left and right sides of the Z-axis driven wheel seat. The Z-axis driven shaft is installed on the left and right Z-axis driven deep groove ball bearings. The Z-axis driven sprocket is installed on the Z-axis driven shaft and separated by a left and right Z-axis driven shaft sleeve so that the Z-axis driven sprocket is placed in the center of the Z-axis driven wheel seat. The Z-axis driven deep groove ball bearing on the left is fixed by a Z-axis driven hole through a bearing retaining ring and a Z-axis driven shaft bearing retaining ring, and the Z-axis driven deep groove ball bearing on the right is fixed by a Z-axis driven hole through a bearing retaining ring.

[0018] Preferably, the Z-axis driving wheel assembly includes a transmission shaft, a flat key, a shaft bearing retaining ring, a hole bearing retaining ring, a sprocket, a deep groove ball bearing and a driving wheel seat, a deep groove ball bearing is installed on each side of the left and right sides of the driving wheel seat, the transmission shaft is installed on the left and right deep groove ball bearings, the sprocket is installed on the deep groove ball bearings, and is separated by the Z-axis driving wheel sleeve on the left and right sides of the sprocket, so that the sprocket is placed in the center of the driving wheel seat; the deep groove ball bearing on the left is fixed by a hole bearing retaining ring, and the deep groove ball bearing on the right is fixed by a hole bearing retaining ring and a shaft bearing retaining ring, the flat key is installed on the transmission shaft, and the sprocket and the transmission shaft are connected by a flat key.

[0019] The Z-axis lifting device of the utility model is adopted, and a chain drive group + composite roller bearing group lifting device is adopted to ensure that the height of the equipment remains unchanged during the operation, which can effectively reduce the overall height of the equipment. The equipment is always operated at a low height to avoid collision with the pipe mold hoisted above; it effectively solves the problem of the Z-axis height being too high, avoiding collision with the pipe mold hoisted above the workshop, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the Z-axis lifting device of the present utility model.

[0021] Figure 2 This is a structural schematic diagram of the Z-axis lifting device of the present invention from another angle.

[0022] Figure 3 This is a schematic structural diagram of the Y-axis component of the Z-axis lifting device of the present invention.

[0023] Figure 4 This is a schematic diagram of the Z-axis component structure of the Z-axis lifting device of the present invention.

[0024] Figure 5 This is a schematic diagram of the Y-axis frame weldment structure of the Z-axis lifting device of the present invention.

[0025] Figure 6 This is a schematic diagram of the Y-axis lifting frame structure of the Z-axis lifting device of the present invention.

[0026] Figure 7 This is a schematic structural diagram of the side clamping and positioning group of the Z-axis lifting device of the present invention.

[0027] Figure 8 This is a schematic structural diagram of the Z-axis driven wheel assembly of the Z-axis lifting device of the present invention.

[0028] Figure 9 This is a schematic diagram of the guide wheel structure of the Z-axis lifting device of the present invention.

[0029] Figure 10 This is a schematic structural diagram of the Z-axis driving wheel group of the Z-axis lifting device of the present invention.

[0030] Figure 11 This is a schematic diagram of the Z-axis chain group structure of the Z-axis lifting device of the present invention.

[0031] Figure 12 This is a schematic structural diagram of the Y-axis motor component of the Z-axis lifting device of the present invention.

[0032] Figure 13 This is a schematic structural diagram of the Y-axis motor group of the Z-axis lifting device of the present utility model.

[0033] Figure 14 This is a schematic diagram of the chain tensioning group structure of the Z-axis lifting device of the present invention.

[0034] Figure 15 This is a schematic structural diagram of the Y-axis driven wheel group of the Z-axis lifting device of the present invention.

[0035] Figure 16 This is a schematic diagram of the connection method of the X-axis component and the Y-axis component of the Z-axis lifting device of the present invention.

[0036] Figure 17 It is a cross-sectional view of the Z-axis lifting device of the present invention.

[0037] Figure 18 This is a schematic diagram of the connection method between the Y-axis component and the Z-axis component of the Z-axis lifting device of the present invention.

[0038] Figure 19 This is a schematic diagram of the connection method between the Y-axis lifting frame and the guide wheel group of the Z-axis lifting device of the present invention.

[0039] Figure 20 This is a schematic diagram of the connection between the Y-axis lifting frame and the side clamping and positioning group of the Z-axis lifting device of the present invention.

[0040] Figure 21 This is a schematic diagram of the connection method between the Y-axis frame weldment and the guide wheel assembly of the Z-axis lifting device of the present invention.

[0041] Reference numerals:

[0042] 1 X-axis component

[0043] 2 Y-axis components

[0044] 3 Z-axis components

[0045] 4 Hydraulic station device

[0046] 5 Jack parts

[0047] 6 Electronic control device

[0048] 7-track set

[0049] 8 X-axis fixed-point positioning components

[0050] 20 Y-axis frame weldment

[0051] 21 Y-axis lifting frame

[0052] 22 side clamping and positioning group

[0053] 23 Compression spring assembly

[0054] 24 Z-axis driven wheel assembly

[0055] 25 guide wheel set

[0056] 201 Y-axis top plate

[0057] 202 Forklift Special Channel Steel

[0058] 203 Y-axis base plate

[0059] 211 lifting frame top plate

[0060] 212 Spring outer retaining ring

[0061] 213 Spring support

[0062] 214 Lift Power Frame

[0063] 215 cylinder block

[0064] 216 Power connection plate

[0065] 220 linear bearings

[0066] 221 Side clamping bracket

[0067] 222 cylinder

[0068] 240 Z-axis driven wheel seat

[0069] 241 Z-axis driven hole bearing retaining ring

[0070] 242 Z-axis driven shaft

[0071] 243 Z-axis driven deep groove ball bearing

[0072] 244 Z-axis driven sleeve

[0073] 245 Z-axis driven sprocket

[0074] 247 Z-axis driven shaft bearing retaining ring

[0075] 250 composite bearing seat

[0076] 251 composite bearings

[0077] 30 Z-axis mounting plate

[0078] 31 Z-axis driving wheel assembly

[0079] 32 Coupling

[0080] 33 reducer

[0081] 34 servo motors

[0082] 35 Z-axis chain assembly

[0083] 310 drive shaft

[0084] 311 flat key

[0085] 312 Shaft Bearing Retaining Ring

[0086] 313 Bearing Retaining Ring for Hole

[0087] 314 sprocket

[0088] 315 deep groove ball bearings

[0089] 316 driving wheel seat

[0090] 350 Z-axis chain

[0091] 351 lifting frame connecting plate

[0092] 120 Y-axis motor unit

[0093] 121 Y-axis motor seat

[0094] 122 Chain

[0095] 123 pin

[0096] 124 cotter pin

[0097] 125 chain connecting plate

[0098] 126 Chain tensioner

[0099] 127 Y-axis driven wheel seat

[0100] 128 Y-axis driven wheel assembly

[0101] 1201 Y-axis motor sprocket

[0102] 1202 flat key

[0103] 1203 reducer

[0104] 1204 servo motor

[0105] 1205 Y-axis motor shaft bearing retaining ring

[0106] 1206 Bearing retaining ring for Y-axis motor hole

[0107] 1207 Y-axis motor deep groove ball bearing

[0108] 1208 Y-axis motor sleeve

[0109] 1209 Drive Shaft

[0110] 1251 Bolt

[0111] 1252 Nut

[0112] 1261 Left-hand thread tensioning head

[0113] 1262, 1264 lock nuts

[0114] 1263 Left-hand and right-hand threaded sleeve

[0115] 1265 right-hand thread tensioning head

[0116] 1281 Y-axis driven sprocket

[0117] 1282 Y-axis driven sleeve

[0118] 1283 Y-axis driven axis

[0119] 1284 Y-axis driven deep groove ball bearing

[0120] 1286 Bearing retaining ring for Y-axis driven shaft

[0121] 1285 Bearing retaining ring for Y-axis driven hole

[0122] 127 Y-axis driven wheel seat DETAILED DESCRIPTION

[0123] In order to more clearly describe the technical content of the present invention, further description will be given below in conjunction with specific embodiments.

[0124] The Z-axis lifting device of the present invention includes an X-axis component 1, a Y-axis component 2 and a Z-axis component 3. The X-axis component 1 includes a Y-axis motor component 12, the Y-axis component 2 includes a Y-axis lifting frame 21, and the Z-axis component 3 includes a Z-axis mounting plate 30, a servo motor 34 and a Z-axis chain group 35. The Y-axis motor component 12 of the X-axis component 1 is fixed to the Y-axis bottom plate 203 of the Y-axis component 2 by bolts, the Z-axis mounting plate 30 is installed on the Y-axis top plate 201 of the Y-axis component 2, the Z-axis chain group 35 is connected to the servo motor 34, the power connecting plate 216 of the Y-axis lifting frame 21 is fixed to the lifting frame connecting plate 351 of the Z-axis chain group 35 by bolts, the servo motor 34 drives the lifting frame connecting plate 351 of the Z-axis chain group 35 to move up and down, and the lifting frame connecting plate 351 drives the Y-axis lifting frame 21 to move up and down.

[0125] As a preferred embodiment of the present invention, the Y-axis component 2 also includes a Y-axis frame weldment 20, a side clamping and positioning group 22, a compression spring group 23, a Z-axis driven wheel group 24 and a guide wheel group 25. The side clamping and positioning group 22 is installed on both sides of the Y-axis lifting frame 21, the compression spring group 23 is installed above the Y-axis lifting frame 21, and the Z-axis driven wheel group 24 is installed on the Y-axis frame weldment 20; the Y-axis lifting frame 21 includes a lifting power frame 214, a cylinder seat 215 and a power connecting plate 216, and the side clamping and positioning group 22 includes The linear bearing 220 and the cylinder 222, the guide wheel group 25 includes a composite bearing seat 250 and a composite bearing 251, the linear bearing 220 is installed and fixed in the hole on the elevator power frame 214, the cylinder 222 is installed on the cylinder seat 215, and the power connecting plate 216 is connected to the composite bearing seat 250 of the guide wheel group 25 by bolts; the Y-axis component 2 has 8 groups of guide wheel groups 25 located on both sides and up and down, and the composite bearing 251 is lifted up and down close to the inner side of the four forklift-specific channel steels 202 on the Y-axis frame weldment 20.

[0126] As a preferred embodiment of the present invention, the Y-axis frame weldment 20 includes a Y-axis top plate 201, a forklift-specific channel steel 202 and a Y-axis bottom plate 203. The forklift-specific channel steel 202 is welded to the Y-axis bottom plate 203, and the Y-axis top plate 201 is installed on the forklift-specific channel steel 202.

[0127] As a preferred embodiment of the present invention, the Y-axis lifting frame 21 includes a lifting frame top plate 211, a spring outer retaining ring 212, and a spring support 213. The side clamping and positioning group 22 also includes a side clamping frame 221. The linear bearing 220 and the cylinder 222 are installed on the side clamping frame 221. The side clamping and positioning group 22 moves synchronously inward or outward under the push of the cylinders 222 on the left and right sides.

[0128] As a preferred embodiment of the present invention, the Z-axis component 3 includes a Z-axis driving wheel group 31, a coupling 32 and a reducer 33. The Z-axis driving wheel group 31, the coupling 32 and the reducer 33 are all installed on the Z-axis mounting plate 30. The Z-axis driving wheel group 31 is connected to the coupling 32, and the reducer 33 is connected to the coupling 32.

[0129] As a preferred embodiment of the present utility model, the Z-axis chain group 35 includes a Z-axis chain 350 and a lifting frame connecting plate 351. The Z-axis chain group 35 also includes a pin 123, a cotter pin 124, a chain connecting plate 125 and a chain tensioning group 126. The Z-axis chain 350 is connected to the lifting frame connecting plate 351 and the chain connecting plate 125. The lifting frame connecting plate 351 and the chain connecting plate 125 are connected through the chain tensioning group 126. The cotter pin 124 is inserted into the pin 123. The Z-axis chain 350 tensions and rotates the left-handed and right-handed threaded sleeves 1263 on the chain tensioning group 126, driving the left-handed thread tensioning head 1261 and the right-handed thread tensioning head 1265 to perform synchronous relative tensioning or reverse loosening actions.

[0130] As a preferred embodiment of the present utility model, the Y-axis motor component 12 includes a Y-axis motor group 120, a Y-axis motor seat 121, a chain 122, a pin 123, a cotter pin 124, a chain connecting plate 125, a chain tensioning group 126, a Y-axis driven wheel seat 127 and a Y-axis driven wheel group 128. The Y-axis motor seat 121 and the Y-axis driven wheel seat 127 are welded to the X-axis component 1, the Y-axis motor group 120 is installed on the Y-axis motor seat 121, and the Y-axis driven wheel group 128 is installed on the Y-axis driven wheel seat 127. The two ends of the chain 122 are connected to the chain connecting plate 125 through the pin 123, and the cotter pin 124 is inserted on the pin 123. The chain connecting plates 125 at both ends are connected to the chain tensioning group 126 through the pin connection 123.

[0131] As a preferred embodiment of the present invention, the Y-axis motor group 120 includes a Y-axis motor sprocket 1201, a flat key 1202, a reducer 1203, a servo motor 1204, a Y-axis motor shaft bearing retaining ring 1205, a Y-axis motor hole bearing retaining ring 1206, a Y-axis motor deep groove ball bearing 1207, a Y-axis motor sleeve 1208 and a transmission shaft 1209. The Y-axis motor deep groove ball bearing 1207 is respectively installed on the left and right sides of the Y-axis motor base 121, and a group of Y-axis motor shaft bearing retaining rings 1205 and Y-axis motor hole bearing retaining rings 1206 are respectively fixed on the left and right sides of the Y-axis motor deep groove ball bearing 1207. The dynamic shaft 1209 is installed on the left and right Y-axis motor deep groove ball bearings 1207, the transmission shaft 1209 and the Y-axis motor sprocket 1201 are connected by a flat key 1202, the servo motor 1204 is connected to the reducer 1203, the reducer 1203 is connected to the transmission shaft 1209, the servo motor 1204 drives the reducer 1203 to perform transmission motion, and the reducer 1203 drives the transmission shaft 1209 to perform transmission motion. One side of the Y-axis motor sprocket 1201 is positioned by the shaft shoulder of the transmission shaft 1209, and the other side is fixed by the Y-axis motor sleeve 1208, and the reducer 1203 is installed on the Y-axis motor base 121.

[0132] As a preferred embodiment of the present invention, the Y-axis driven wheel assembly 128 includes a Y-axis driven sprocket 1281, a Y-axis driven shaft sleeve 1282, a Y-axis driven shaft 1283, a Y-axis driven deep groove ball bearing 1284, a Y-axis driven shaft bearing retaining ring 1286, a Y-axis driven hole bearing retaining ring 1285 and a Y-axis driven wheel seat 127, the Y-axis driven deep groove ball bearing 1284 is respectively installed on the left and right sides of the Y-axis driven wheel seat 127, and the Y-axis driven shaft 1283 is installed on the left and right sides of the Y-axis driven deep groove ball bearing 1284. The Y-axis driven sprocket 1281 is installed on the Y-axis driven shaft 1283, and the left and right sides of the Y-axis driven sprocket 1281 are separated by a Y-axis driven shaft sleeve 1282, so that the Y-axis driven sprocket 1281 is placed in the center of the Y-axis driven wheel seat 127, and the left side of the Y-axis driven deep groove ball bearing 1284 is fixed by a Y-axis driven hole bearing retaining ring 1285, and the right side of the Y-axis driven deep groove ball bearing 1284 is fixed by a Y-axis driven shaft bearing retaining ring 1286 and a Y-axis driven hole bearing retaining ring 1285. As a preferred embodiment of the present invention, the chain tensioning group 126 includes a left-handed threaded tensioning head 1261, locking nuts 1262 and 1264, left-handed and right-handed threaded sleeves 1263, and a right-handed threaded tensioning head 1265. The chain 122 is tensioned by rotating the left-handed and right-handed threaded sleeves 1263 on the chain tensioning group 126 to drive the left-handed threaded tensioning head 1261 and the right-handed threaded tensioning head 1265 to perform synchronous relative tensioning or reverse loosening actions.

[0133] As a preferred embodiment of the present invention, the Z-axis driven wheel assembly 24 includes a Z-axis driven wheel seat 240, a Z-axis driven hole bearing retaining ring 241, a Z-axis driven shaft 242, a Z-axis driven deep groove ball bearing 243, a Z-axis driven shaft sleeve 244, a Z-axis driven sprocket 245, and a Z-axis driven shaft bearing retaining ring 247. A Z-axis driven deep groove ball bearing 243 is installed on each side of the Z-axis driven wheel seat 240, and the Z-axis driven shaft 242 is installed on the left and right Z-axis driven deep grooves. On the ball bearing 243, the Z-axis driven sprocket 245 is installed on the Z-axis driven shaft 242 and is separated by a Z-axis driven shaft sleeve 244 on the left and right, so that the Z-axis driven sprocket 245 is placed in the center of the Z-axis driven wheel seat 240, and the Z-axis driven deep groove ball bearing 243 on the left is fixed through a Z-axis driven hole through a bearing retaining ring 241 and a Z-axis driven shaft bearing retaining ring 247, and the Z-axis driven deep groove ball bearing 243 on the right is fixed through a Z-axis driven hole through a bearing retaining ring 241.

[0134] As a preferred embodiment of the present utility model, the Z-axis driving wheel group 31 includes a transmission shaft 310, a flat key 311, a shaft bearing retaining ring 312, a hole bearing retaining ring 313, a sprocket 314, a deep groove ball bearing 315, and a driving wheel seat 316. A deep groove ball bearing 315 is installed on each side of the left and right sides of the driving wheel seat 316. The transmission shaft 310 is installed on the left and right deep groove ball bearings 315, and the sprocket 314 is installed on the deep groove ball bearings 315. The left and right sides of the sprocket 314 are separated by Z-axis driving wheel sleeves, so that the sprocket 314 is centered on the driving wheel seat 316; the deep groove ball bearing 315 on the left is fixed by a hole bearing retaining ring 313, and the deep groove ball bearing 315 on the right is fixed by a hole bearing retaining ring 313 and a shaft bearing retaining ring 312. The flat key 311 is installed on the transmission shaft 310, and the sprocket 314 and the transmission shaft 310 are connected by the flat key 311.

[0135] In a specific embodiment of the present invention, it is composed of an X-axis component 1, a Y-axis component 2, a Z-axis component 3, a hydraulic station device 4, a jack component 5, an electronic control device 6, a track group 7, and an X-axis fixed-point positioning component 8.

[0136] The Y-axis component 2 is assembled from a Y-axis frame weldment 20 , a Y-axis lifting frame 21 , a side clamping and positioning group 22 , a compression spring group 23 , a Z-axis driven wheel group 24 , and a guide wheel group 25 .

[0137] The Z-axis component 3 is assembled from a Z-axis mounting plate 30 , a Z-axis driving wheel assembly 31 , a coupling 32 , a speed reducer 33 , a servo motor 34 , and a Z-axis chain assembly 35 .

[0138] The power traction method of the X-axis component 1 and the Y-axis component 2 is that the chain connecting plate 125 on the Y-axis motor component 12 of the X-axis component 1 and the Y-axis base plate 203 on the Y-axis frame weldment 20 of the Y-axis component 2 are fixed with bolts.

[0139] The power traction mode of the Y-axis component 2 and the Z-axis component 3 is that the Y-axis component 2 and the Z-axis component 3 are connected together by bolts through the power connecting plate 216 of the Y-axis component 2 and the lifting frame connecting plate 351 of the Z-axis component 3.

[0140] The guide wheel assembly 25 and the Y-axis lifting frame 21 are connected in such a way that the composite bearing seat 250 of the guide wheel assembly 25 and the power connecting plate 216 on the Y-axis lifting frame 21 are connected together by bolts.

[0141] The side clamping and positioning group 22 and the Y-axis lifting frame 21 are connected in such a way that the linear bearing 220 on the side clamping and positioning group 22 is mounted and fixed on the elevator power frame 214 on the Y-axis lifting frame 21 .

[0142] The up and down lifting and guiding method of the Y-axis frame weldment 20 and the guide wheel group 25 is that the composite bearings 251 of the 8 groups of guide wheel groups 25 on both sides of the Y-axis component 2 are close to the inner side of the four forklift special channel steels 202 on the Y-axis frame weldment 20 to perform the lifting action.

[0143] The Y-axis motor component 12 is assembled from a Y-axis motor group 120, a Y-axis motor seat 121, a chain 122, a pin 123, a cotter pin 124, a chain connecting plate 125, a chain tensioning group 126, a Y-axis driven wheel seat 127, and a Y-axis driven wheel group 128.

[0144] The Y-axis motor group 120 is assembled by a Y-axis motor sprocket 1201, a flat key 1202, a reducer 1203, a servo motor 1204, a bearing retaining ring 1205 for the Y-axis motor shaft, a bearing retaining ring 1206 for the Y-axis motor hole, a Y-axis motor deep groove ball bearing 1207, a Y-axis motor bushing 1208, and a transmission shaft 1209.

[0145] A Y-axis motor deep groove ball bearing 1207 is installed on each side of the Y-axis motor base 121, and a set of Y-axis motor shaft bearing retaining rings 1205 and Y-axis motor hole bearing retaining rings 1206 are used to fix the outer sides of the left and right two Y-axis motor deep groove ball bearings 1207 respectively. The transmission shaft 1209 is installed on the left and right Y-axis motor deep groove ball bearings 1207. The transmission shaft 1209 and the Y-axis motor sprocket 1201 are connected through a flat key 1202. The servo motor 1204 is connected to the reducer 1203, and the reducer 1203 is connected to the transmission shaft 1209. The servo motor 1204 drives the reducer 1203 to perform transmission motion, and the reducer 1203 drives the transmission shaft 1209 to perform transmission motion. One side of the Y-axis motor sprocket 1201 is positioned by the shaft shoulder of the transmission shaft 1209, and the other side is fixed by the Y-axis motor sleeve 1208. The reducer 1203 is installed on the Y-axis motor base 121.

[0146] The Y-axis driven wheel assembly 128 is assembled by a Y-axis driven sprocket 1281, a Y-axis driven shaft sleeve 1282, a Y-axis driven shaft 1283, a Y-axis driven deep groove ball bearing 1284, a Y-axis driven shaft bearing retaining ring 1286, a Y-axis driven hole bearing retaining ring 1285, and a Y-axis driven wheel seat 127.

[0147] A Y-axis driven deep groove ball bearing 1284 is installed on each side of the Y-axis driven wheel seat 127, the Y-axis driven shaft 1283 is installed on the left and right Y-axis driven deep groove ball bearings 1284, the Y-axis driven sprocket 1281 is installed on the Y-axis driven shaft 1283, the left and right sides of the Y-axis driven sprocket 1281 are separated by a Y-axis driven shaft sleeve 1282, so that the Y-axis driven sprocket 1281 is placed in the center of the Y-axis driven wheel seat 127, the left side of the Y-axis driven deep groove ball bearing 1284 is fixed by a Y-axis driven hole bearing retaining ring 1285, and the right side of the Y-axis driven deep groove ball bearing 1284 is fixed by a Y-axis driven shaft bearing retaining ring 1286 and a Y-axis driven hole bearing retaining ring 1285.

[0148] The chain tensioning assembly 126 is assembled from a left-handed threaded tensioning head 1261 , locking nuts 1262 and 1264 , a left-handed and right-handed threaded sleeve 1263 , and a right-handed threaded tensioning head 1265 .

[0149] The Y-axis frame weldment 20 is welded together by a Y-axis top plate 201 , a forklift special channel steel 202 , and a Y-axis bottom plate 203 .

[0150] The Y-axis lifting frame 21 is welded together by a lifting frame top plate 211 , a spring outer retaining ring 212 , a spring support 213 , an elevator power frame 214 , and a cylinder seat 215 , and then assembled with a power connecting plate 216 .

[0151] The side clamping and positioning group 22 is assembled from a linear bearing 220 , a side clamping frame 221 , and a cylinder 222 .

[0152] The Z-axis driven wheel assembly 24 is assembled from a Z-axis driven wheel seat 240, a bearing retaining ring 241 for a Z-axis driven hole, a Z-axis driven shaft 242, a Z-axis driven deep groove ball bearing 243, a Z-axis driven shaft sleeve 244, a Z-axis driven sprocket 245, and a bearing retaining ring 247 for a Z-axis driven shaft.

[0153] A Z-axis driven deep groove ball bearing 243 is installed on each side of the Z-axis driven wheel seat 240, the Z-axis driven shaft 242 is installed on the left and right Z-axis driven deep groove ball bearings 243, the Z-axis driven sprocket 245 is installed on the Z-axis driven shaft 242 and separated by a left and right Z-axis driven shaft sleeve 244, so that the Z-axis driven sprocket 245 is placed in the center of the Z-axis driven wheel seat 240, the Z-axis driven deep groove ball bearing 243 on the left is fixed by a Z-axis driven hole bearing retaining ring 241 and a Z-axis driven shaft bearing retaining ring 247, and the Z-axis driven deep groove ball bearing 243 on the right is fixed by a Z-axis driven hole bearing retaining ring 241.

[0154] The guide wheel assembly 25 is formed by welding a composite bearing seat 250 and a composite bearing 251 .

[0155] The Z-axis driving wheel assembly 31 is assembled from a transmission shaft 310 , a flat key 311 , a shaft bearing retaining ring 312 , a hole bearing retaining ring 313 , a sprocket 314 , a deep groove ball bearing 315 , and a driving wheel seat 316 .

[0156] A deep groove ball bearing 315 is installed on each side of the driving wheel seat 316, the transmission shaft 310 is installed on the left and right deep groove ball bearings 315, the sprocket 314 is installed on the deep groove ball bearing 315 and is separated by a Z-axis driving wheel sleeve on the left and right sides of the sprocket 314, so that the sprocket 314 is placed in the center of the driving wheel seat 316; the deep groove ball bearing 315 on the left is fixed with a hole bearing retaining ring 313, and the deep groove ball bearing 315 on the right is fixed with a hole bearing retaining ring 313 and a shaft bearing retaining ring 312, a flat key 311 is installed on the transmission shaft 310, and the sprocket 314 and the transmission shaft 310 are connected by the flat key 311.

[0157] The Z-axis chain assembly 35 is assembled from a pin 123 , a cotter pin 124 , a chain connecting plate 125 , a chain tensioning assembly 126 , a chain 350 , and a lifting frame connecting plate 351 .

[0158] The Z-axis mounting plate 30 of the Z-axis component 3 is installed on the Y-axis top plate 201 of the Y-axis component 2. The Z-axis chain group 35 is provided with lifting power by the servo motor 34 of the Z-axis component 3, driving the left and right lifting frame connecting plates 351 on the Z-axis chain group 35 to perform lifting movements. The lifting frame connecting plates 351 drive the Y-axis lifting frame 21 to perform lifting movements, and the compression spring group 23 above the Y-axis lifting frame 21 follows to perform lifting movements; the chain 350 of the Z-axis chain group 35 is tightened to rotate the left-handed and right-handed threaded sleeves 1263 on the chain tensioning group 126, driving the left-handed thread tensioning head 1261 and the right-handed thread tensioning head 1265 to perform synchronous relative tensioning or reverse loosening movements, thereby realizing the chain tensioning function.

[0159] The Y-axis motor seat 121 and the Y-axis driven wheel seat 127 are welded to the X-axis component 1 , and the Y-axis base plate 203 is welded to the Y-axis component 2 .

[0160] The chain 122 of the Y-axis motor component 12 is tensioned by rotating the left-handed and right-handed threaded sleeves 1263 on the chain tensioning assembly 126, driving the left-handed and right-handed threaded tensioning heads 1261 and 1265 to perform synchronous relative tensioning or reverse loosening actions, thereby realizing the tensioning function of the chain.

[0161] The Y-axis motor group 120 is installed on the Y-axis motor seat 121, the Y-axis driven wheel group 128 is installed on the Y-axis driven wheel seat 127, the two ends of the chain 122 are connected to the chain connecting plate 125 through the pin shaft 123, the cotter pin 124 is inserted on the pin shaft 123, and the chain connecting plates 125 at both ends are connected to the chain tensioning group 126 through the pin shaft connection 123.

[0162] The linear bearing 220 and the cylinder 222 are mounted on the side clamping frame 221 to form the side clamping positioning group 22 .

[0163] The side clamping and positioning group 22 is installed on both sides of the Y-axis lifting frame 21, the linear bearing 220 on the side clamping and positioning group 22 is installed and fixed on the hole on the elevator power frame 214 on the Y-axis lifting frame 21, and the cylinder 222 on the side clamping and positioning group 22 is installed on the cylinder seat 215.

[0164] The side clamping and positioning groups 22 are pushed by the cylinders 222 on the left and right sides and move synchronously inward or outward to clamp the jack components.

[0165] The chain drive of the utility model can be replaced by a synchronous belt or a wire rope drive, the composite bearing can be replaced by a roller bearing combination, and the cylinder can be replaced by an electric cylinder.

[0166] This solution employs a tensioning device placed in the middle of the chain, ensuring uniform chain force during transmission. Adjustment is simple, space-saving, and compact, making it easy to maintain and adjust. It is suitable for complex or harsh working conditions with high levels of oil and dust, and oil and dust adhering to the chain do not affect transmission function. The chain can be adjusted synchronously, effectively applying force and ensuring stable, centered chain operation. This solution addresses the issue of tensioning devices located on the left and right sides of the sprocket, which can easily experience asynchronous adjustment and chain deviation. Furthermore, it requires minimal installation space, ensuring stable, centered chain operation.

[0167] This solution adopts a telescopic plane clamping method, which can clamp the jack component during the automatic positioning process to prevent it from swinging; the jack component is released during the tensioning stage after the positioning is completed, and the jack component resumes a free swinging state, and can adjust its posture swing according to the position of the pipe mold screw to ensure that the pipe mold screw and the jack component are always in a coaxial state; at the same time, the telescopic plane clamping method can prevent the side clamping device from being damaged by front and rear impacts and collisions during abnormal conditions during the jack tensioning process; it solves the problem that the rigid connection or hard spring connection is too rigid to adjust the posture of the jack component during the automatic positioning process of the equipment; the guide wheel clamping method is prone to deformation of the guide wheel shaft or the guide wheel runs out of the column during actual operation; the connectionless method cannot control the swing of the jack during the automatic positioning process.

[0168] This solution uses a tensioning device applied to the main drive end, so that the chain is evenly stressed during the transmission process, and the adjustment method is relatively simple, no space is occupied, the overall structure is relatively compact, simple to maintain, and easy to adjust; it is suitable for complex or harsh working conditions with a lot of oil and dust, and the oil and dust adhering to the chain do not affect the transmission function; the tensioning device is firm and not easy to shake, ensuring that the chain can run smoothly in the center, solving the problem that the tensioning devices distributed on the left and right sides of the sprocket are prone to adjustment asynchrony and the chain is easy to deviate; secondly, only a very small installation space is required; thirdly, the tensioning device is firm and not easy to shake, and there is no need for frequent tensioning and adjustment, which reduces the frequency of maintenance.

[0169] The specific implementation scheme of this embodiment can be found in the relevant descriptions in the above embodiments and will not be repeated here.

[0170] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0171] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is at least two.

[0172] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0173] The Z-axis lifting device of the utility model is adopted, and a chain drive group + composite roller bearing group lifting device is adopted to ensure that the height of the equipment remains unchanged during the operation, which can effectively reduce the overall height of the equipment. The equipment is always operated at a low height to avoid collision with the pipe mold hoisted above; it effectively solves the problem of the Z-axis height being too high, avoiding collision with the pipe mold hoisted above the workshop, and has a wide range of applications.

[0174] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations may be made without departing from the spirit and scope of the present invention. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive.

Claims

1. A Z-axis lifting device, characterized in that: The device includes an X-axis component, a Y-axis component and a Z-axis component. The X-axis component includes a Y-axis motor component, the Y-axis component includes a Y-axis lifting frame, and the Z-axis component includes a Z-axis mounting plate, a servo motor and a Z-axis chain group. The Y-axis motor component of the X-axis component is fixed to the Y-axis bottom plate of the Y-axis component by bolts, the Z-axis mounting plate is installed on the Y-axis top plate of the Y-axis component, the Z-axis chain group is connected to the servo motor, the power connecting plate of the Y-axis lifting frame is fixed to the lifting frame connecting plate of the Z-axis chain group by bolts, the servo motor drives the lifting frame connecting plate of the Z-axis chain group to move up and down, and the lifting frame connecting plate drives the Y-axis lifting frame to move up and down.

2. The Z-axis lifting device according to claim 1, characterized in that: The Y-axis component also includes a Y-axis frame weldment, a side clamping and positioning group, a compression spring group, a Z-axis driven wheel group and a guide wheel group. The side clamping and positioning group is installed on both sides of the Y-axis lifting frame, the compression spring group is installed above the Y-axis lifting frame, and the Z-axis driven wheel group is installed on the Y-axis frame weldment; the Y-axis lifting frame includes a lift power frame, a cylinder seat and a power connecting plate, the side clamping and positioning group includes a linear bearing and a cylinder, the guide wheel group includes a composite bearing seat and a composite bearing, the linear bearing is installed and fixed in the hole on the lift power frame, the cylinder is installed on the cylinder seat, and the power connecting plate is connected to the composite bearing seat of the guide wheel group by bolts; the Y-axis component has a guide wheel group located on both sides and grouped together up and down, and the composite bearing rises and falls close to the inner side of the four forklift-specific channel steels on the Y-axis frame weldment.

3. The Z-axis lifting device according to claim 2, characterized in that: The Y-axis frame weldment includes a Y-axis top plate, a forklift special channel steel and a Y-axis bottom plate. The forklift special channel steel is welded to the Y-axis bottom plate, and the Y-axis top plate is installed on the forklift special channel steel.

4. The Z-axis lifting device according to claim 2, characterized in that: The Y-axis lifting frame includes a lifting frame top plate, a spring outer retaining ring, and a spring support. The side clamping and positioning group also includes a side clamping frame. The linear bearing and cylinder are installed on the side clamping frame. The side clamping and positioning group moves synchronously inward or outward under the push of the cylinders on the left and right sides.

5. The Z-axis lifting device according to claim 1, characterized in that: The Z-axis components include a Z-axis driving wheel group, a coupling and a reducer, which are all installed on the Z-axis mounting plate. The Z-axis driving wheel group is connected to the coupling, and the reducer is connected to the coupling.

6. The Z-axis lifting device according to claim 5, characterized in that: The Z-axis chain group includes a Z-axis chain and a lifting frame connecting plate. The Z-axis chain group also includes a pin shaft, a cotter pin, a chain connecting plate and a chain tensioning group. The Z-axis chain is connected to the lifting frame connecting plate and the chain connecting plate. The lifting frame connecting plate and the chain connecting plate are connected through a chain tensioning group. The cotter pin is inserted into the pin shaft. The Z-axis chain tensioning rotates the left-handed and right-handed threaded sleeves on the chain tensioning group, driving the left-handed and right-handed threaded tensioning heads to perform synchronous relative tensioning or reverse loosening actions.

7. The Z-axis lifting device according to claim 1, characterized in that: The Y-axis motor component includes a Y-axis motor group, a Y-axis motor base, a chain, a pin, a cotter pin, a chain connecting plate, a chain tensioning group, a Y-axis driven wheel base and a Y-axis driven wheel group. The Y-axis motor base and the Y-axis driven wheel base are welded to the X-axis component, the Y-axis motor group is installed on the Y-axis motor base, and the Y-axis driven wheel group is installed on the Y-axis driven wheel base. The two ends of the chain are connected to the chain connecting plate through a pin, and the cotter pin is inserted on the pin. The chain connecting plates at both ends are connected to the chain tensioning group through a pin.

8. The Z-axis lifting device according to claim 7, characterized in that: The Y-axis motor group includes a Y-axis motor sprocket, a flat key, a reducer, a servo motor, a bearing retaining ring for the Y-axis motor shaft, a bearing retaining ring for the Y-axis motor hole, a Y-axis motor deep groove ball bearing, a Y-axis motor sleeve and a transmission shaft. The Y-axis motor deep groove ball bearings are respectively installed on the left and right sides of the Y-axis motor base. A group of Y-axis motor shaft bearing retaining rings and Y-axis motor hole bearing retaining rings are fixed on the left and right sides of the Y-axis motor deep groove ball bearings. The transmission shaft is installed on the left and right Y-axis motor deep groove ball bearings. The transmission shaft and the Y-axis motor sprocket are connected by a flat key. The servo motor is connected to the reducer, and the reducer is connected to the transmission shaft. The servo motor drives the reducer to perform transmission motion, and the reducer drives the transmission shaft to perform transmission motion. One side of the Y-axis motor sprocket is positioned by the shaft shoulder of the transmission shaft, and the other side is fixed by the Y-axis motor sleeve. The reducer is installed on the Y-axis motor base.

9. The Z-axis lifting device according to claim 7, characterized in that: The Y-axis driven wheel assembly includes a Y-axis driven sprocket, a Y-axis driven shaft sleeve, a Y-axis driven shaft, a Y-axis driven deep groove ball bearing, a Y-axis driven shaft bearing retaining ring, a Y-axis driven hole bearing retaining ring and a Y-axis driven wheel seat. The Y-axis driven deep groove ball bearings are respectively installed on the left and right sides of the Y-axis driven wheel seat, the Y-axis driven shaft is installed on the left and right sides of the Y-axis driven deep groove ball bearing, the Y-axis driven sprocket is installed on the Y-axis driven shaft, the left and right sides of the Y-axis driven sprocket are each separated by a Y-axis driven shaft sleeve, so that the Y-axis driven sprocket is placed in the center of the Y-axis driven wheel seat, the left side of the Y-axis driven deep groove ball bearing is fixed by a Y-axis driven hole bearing retaining ring, and the right side of the Y-axis driven deep groove ball bearing is fixed by a Y-axis driven shaft bearing retaining ring and a Y-axis driven hole bearing retaining ring.

10. The Z-axis lifting device according to claim 7, characterized in that: The chain tensioning group includes a left-handed threaded tensioning head, a locking nut, a left-handed threaded sleeve, and a right-handed threaded tensioning head. The chain tensioning is achieved by rotating the left-handed threaded sleeve on the chain tensioning group to drive the left-handed threaded tensioning head and the right-handed threaded tensioning head to perform synchronous relative tensioning or reverse loosening.

11. The Z-axis lifting device according to claim 2, characterized in that: The Z-axis driven wheel assembly includes a Z-axis driven wheel seat, a bearing retaining ring for a Z-axis driven hole, a Z-axis driven shaft, a Z-axis driven deep groove ball bearing, a Z-axis driven shaft sleeve, a Z-axis driven sprocket and a bearing retaining ring for a Z-axis driven shaft. A Z-axis driven deep groove ball bearing is installed on each side of the left and right sides of the Z-axis driven wheel seat. The Z-axis driven shaft is installed on the left and right Z-axis driven deep groove ball bearings. The Z-axis driven sprocket is installed on the Z-axis driven shaft and separated by a left and right Z-axis driven shaft sleeve so that the Z-axis driven sprocket is centered in the Z-axis driven wheel seat. The Z-axis driven deep groove ball bearing on the left is fixed through a Z-axis driven hole through a bearing retaining ring and a Z-axis driven shaft bearing retaining ring, and the Z-axis driven deep groove ball bearing on the right is fixed through a Z-axis driven hole through a bearing retaining ring.

12. The Z-axis lifting device according to claim 5, characterized in that: The Z-axis driving wheel assembly includes a transmission shaft, a flat key, a shaft bearing retaining ring, a hole bearing retaining ring, a sprocket, a deep groove ball bearing and a driving wheel seat. A deep groove ball bearing is installed on each side of the left and right sides of the driving wheel seat. The transmission shaft is installed on the left and right deep groove ball bearings. The sprocket is installed on the deep groove ball bearings and is separated by the Z-axis driving wheel sleeve on the left and right sides of the sprocket so that the sprocket is placed in the center of the driving wheel seat; the deep groove ball bearing on the left is fixed by a hole bearing retaining ring, and the deep groove ball bearing on the right is fixed by a hole bearing retaining ring and a shaft bearing retaining ring. The flat key is installed on the transmission shaft, and the sprocket and the transmission shaft are connected by the flat key.

Images