CN213869896U - Tunnel trolley vibrating rod - Google Patents

Abstract

The utility model belongs to the technical field of the concrete processing equipment, a tunnel platform truck vibrting spear is related to. The vibration reduction connecting assembly comprises two symmetrically arranged connectors, the connector at the lower end is fixed at the upper end of the rod body, and the two connectors are connected through an elastic vibration reduction sleeve; two ends of the elastic damping sleeve are respectively connected with the two connectors through buckling and pressing structures; the drive wire of vibration subassembly wear to establish two connectors and elastic damping cover, connector and drive wire between be equipped with seal structure. Compared with the prior art, the tunnel trolley vibrating rod has the advantages that: 1. reasonable in design, compact structure guarantees the vibration range. 2. The leakproofness is good, can ensure the normal work of vibrting spear. 3. The cooling is reliable, and the vibrating rod can operate for a long time.

Description

Tunnel trolley vibrating rod

Technical Field

The utility model belongs to the technical field of the concrete processing equipment, a tunnel platform truck vibrting spear is related to.

Background

When concrete is mixed with concrete mixer to mix concrete pouring elements, air bubbles must be removed. The vibrating rod is used for tamping, so that the concrete can be combined compactly, the phenomena of honeycomb pitted surface and the like of the concrete are eliminated, the strength of the concrete is improved, and the quality of the concrete member is ensured. The existing vibrating spear is installed in the frame and vibrates the concrete in the use process, but because the vibrating spear is directly fixed on the frame, the vibration amplitude is reduced, the vibration amplitude can not be further improved, even if the vibration amplitude is forcibly improved, the frame and the parts thereof are damaged, and the noise is large.

For example, chinese patent document discloses a concrete vibrating rod [ application No.: 201721737162.9], including a vibrating tube, a vibrating head and a connecting tube respectively connected to both ends of the vibrating tube, a motor is arranged in the vibrating tube, the rotating shaft of the motor is connected with an eccentric shaft to realize synchronous rotation, an eccentric wheel is fixedly sleeved on the eccentric shaft, and the vibrating head is connected with the eccentric wheel

Although the problems in the prior art are solved to a certain extent by the scheme, the problem of insufficient vibration amplitude still exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a reasonable in design, compact structure, guarantee vibration amplitude's tunnel platform truck vibrting spear.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the vibrating bar of the tunnel trolley comprises a cylindrical bar body, wherein a vibrating assembly is arranged in the bar body, and the vibrating bar is characterized in that a vibration damping connecting assembly is arranged at the upper end of the bar body and comprises two symmetrically arranged connectors, the connector at the lower end is fixed at the upper end of the bar body, and the two connectors are connected through an elastic vibration damping sleeve; two ends of the elastic damping sleeve are respectively connected with the two connectors through buckling and pressing structures; the drive wire of vibration subassembly wear to establish two connectors and elastic damping cover, connector and drive wire between be equipped with seal structure.

In the tunnel trolley vibrating spear, the buckling and pressing structure comprises an inner joint arranged at one end of the connector, a clamping sleeve is sleeved outside the inner joint, the end part of the elastic damping sleeve is arranged between the inner joint and the clamping sleeve, and an anti-disengaging structure is arranged between the clamping sleeve and the inner joint.

In foretell tunnel platform truck vibrting spear, anti-disengaging structure be the outer snap ring of right angle trapezoidal form including setting up at least two on the inner joint periphery along axial distribution and cross-section, the inner wall of snap ring be equipped with at least two along axial distribution and cross-section be the inner snap ring of right angle trapezoidal form, outer snap ring and inner snap ring dislocation set, the inclined plane of outer snap ring be located the inner joint outer end, the perpendicular of outer snap ring is located inner, the straight face of inner snap ring be located the outer end, the inclined plane of inner snap ring be located inner.

In foretell tunnel platform truck vibrting spear, seal structure including sealed head, sealed head set up and serve keeping away from one of elastic damping cover, sealed overhead wear to be equipped with sealed head line hole, the outer screw head spiro union of sealed head lower extreme in the threaded hole of connector, the connector line hole intercommunication of screw hole inner and connector, sealed head line hole outer end seted up the sealing washer mounting groove, the diameter of sealing washer mounting groove because outer end to inner reduce gradually, be equipped with the sealing ring in the sealing washer mounting groove, sealing washer mounting groove outer end on establish the spill set nut of spiro union on sealed overhead.

In foretell tunnel platform truck vibrting spear, the peripheral portion of connector on be equipped with the draw-in groove that two symmetries set up, the connector lower extreme inlay and establish in the installing port of barred body upper end and fixed through welded structure.

The clamping grooves of the lower end connectors are respectively internally provided with clamping strips, the two ends of each clamping strip are respectively penetrated through the side wall of the rod body, and the end parts of the clamping strips are connected with the rod body in a sealing mode through welding structures.

In the above-mentioned tunnel trolley vibrating spear, the described elastic vibration-damping cover includes inner rubber layer and outer rubber layer, a plurality of vertically arranged springs which are uniformly distributed along the circumferential direction are arranged between the inner rubber layer and the outer rubber layer, the upper ends of the springs are all arranged on the upper annular fixed sheet, the lower ends of the springs are all arranged on the lower annular fixed sheet, the inner wall and the outer wall of the upper annular fixed sheet and the lower annular fixed sheet are respectively provided with a plurality of barbs, the upper annular fixed sheet and the lower annular fixed sheet are also provided with a plurality of glue passing holes in a radial penetrating way, the upper annular fixed sheet is connected with the inner rubber layer and the outer rubber layer through the upper rubber layer, the lower annular fixed sheet is connected with the inner rubber layer and the outer rubber layer through the lower rubber layer, a cavity is formed among the upper rubber layer, the lower rubber layer, the inner rubber layer and the outer rubber layer, and the plurality of springs are arranged in the cavity.

In the tunnel trolley vibrating spear, the cavity is filled with white grease.

In the tunnel trolley vibrating spear, the elastic damping sleeve comprises an inner rubber layer and an outer rubber layer, the inner rubber layer and the outer rubber layer are connected in a compounding way, and springs which are distributed spirally are arranged between the inner rubber layer and the outer rubber layer; the outer rubber layer and the inner rubber layer are compounded with elastic fiber layers.

In the above-mentioned tunnel platform truck vibrting spear, the length of the drive wire between two connectors be greater than the interval between two connectors.

In foretell tunnel platform truck vibrting spear, connector line hole lower extreme be equipped with and move back a hole, the diameter that moves back a hole is greater than the diameter in connector line hole, move back a hole outer end and still be equipped with annular arc collision prevention angle.

Compared with the prior art, the tunnel trolley vibrating rod has the advantages that: 1. reasonable in design, compact structure guarantees the vibration range. 2. The leakproofness is good, can ensure the normal work of vibrting spear. 3. The cooling is reliable, and the vibrating rod can operate for a long time.

Drawings

Fig. 1 is a schematic structural diagram provided by the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

FIG. 3 is a schematic structural view of embodiment 2.

Fig. 4 is an enlarged schematic view of a portion B in fig. 3.

FIG. 5 is a schematic structural view of example 3.

Fig. 6 is an enlarged schematic view of the portion C in fig. 1.

Fig. 7 is a schematic top sectional view of the motor casing provided by the present invention.

Fig. 8 is a schematic diagram of a middle sectional structure of a motor casing provided by the present invention.

Fig. 9 is a schematic view of a cross-sectional structure of a lower portion of a motor casing provided by the present invention.

In the figure, the rod body 1, the vibration assembly 2, the vibration damping connection assembly 3, the connection head 4, the elastic vibration damping sleeve 5, the buckling structure 6, the inner connection head 61, the anti-dropping structure 63, the clamping sleeve 62, the outer clamping ring 631, the inner clamping ring 632, the sealing structure 22, the sealing head 221, the sealing head line hole 222, the connection head hole 223, the sealing ring installation groove 224, the sealing ring 224a, the concave positioning nut 225, the first-stage convex ring 226, the annular step 227, the first-stage annular groove 228, the withdrawing hole 223a, the clamping groove 41, the installation opening 42, the clamping strip 43, the inner rubber layer 51, the outer rubber layer 52, the spring 53, the upper annular fixing plate 54, the lower annular fixing plate 55, the barb 56, the glue passing hole 57, the lower rubber layer 59, the upper rubber layer 58, the cavity 53a, the elastic fiber layer 5a, the white grease 53b, the elastic rubber layer 53c, the rotating shaft 23, the eccentric block 24, the lower shaft seat 231, the upper shaft seat 232, the motor 25, the lower shaft seat 232, the lower shaft seat, The circulating heat dissipation structure 26, the liquid inlet 261, the liquid outlet 262, the liquid inlet 263, the liquid outlet 264, the arc-shaped liquid inlet channel 26a, the arc-shaped liquid outlet channel 26b, the arc-shaped liquid inlet cavity 26c, the arc-shaped liquid outlet cavity 26d, the liquid passing cavity 26e, the separation support plate 26f, the motor casing 251, the limiting convex strip 251a, the limiting convex strip groove 251b, the annular top sleeve 251c and the guide plate 26 g.

Detailed Description

Example 1:

as shown in fig. 1, 2, 6-9, the vibration rod of the tunnel trolley comprises a cylindrical rod body 1, and a vibration assembly 2 is arranged in the rod body 1, and is characterized in that a vibration damping connection assembly 3 is arranged at the upper end of the rod body 1, the vibration damping connection assembly 3 comprises two symmetrically arranged connectors 4, the connector 4 at the lower end is fixed at the upper end of the rod body 1, the two connectors 4 are connected with each other through an elastic vibration damping sleeve 5, the elastic vibration damping sleeve 5 comprises an inner rubber layer 51 and an outer rubber layer 52, the inner rubber layer 51 is connected with the outer rubber layer 52 in a compounding manner, and springs distributed in a spiral manner are arranged between the inner rubber layer 51 and the outer rubber layer 52; the outer rubber layer 52 and the inner rubber layer 51 are both compounded with elastic fiber layers.

Preferably, the axial length of the rod 1 is greater than the axial length of the elastic damping sleeve 5 and the axial length of the coupling head 4, respectively.

Preferably, the ratio of the axial length of the rod 1 to the axial length of the elastic damping sleeve 5 and the axial length of the coupling head 4 is 1: 0.1: 0.1.

preferably, the ratio of the axial length of the rod 1 to the axial length of the elastic damping sleeve 5 and of the coupling head 4 is 2: 0.1: 0.1.

preferably, the ratio of the axial length of the rod 1 to the axial length of the elastic damping sleeve 5 and of the coupling head 4 is 3: 0.1: 0.1.

more specifically, two ends of the elastic damping sleeve 5 are respectively connected with the two connectors 4 through the buckling and pressing structure 6; the buckling and pressing type structure 6 comprises an inner joint 61 arranged at one end of the connecting head 4, a clamping sleeve 62 is sleeved outside the inner joint 61, the end part of the elastic damping sleeve 5 is arranged between the inner joint 61 and the clamping sleeve 62, and an anti-falling structure 63 is arranged between the clamping sleeve 62 and the inner joint 61; anti-disengaging structure 63 is including setting up two at least outer snap rings 631 that are right angle trapezoidal form along axial distribution and cross-section on the outer peripheral portion of inner joint 61, and chucking cover 62 inner wall is equipped with two at least interior snap rings 632 that are right angle trapezoidal form along axial distribution and cross-section, and outer snap ring 631 and interior snap ring 632 dislocation set, and the inclined plane of outer snap ring 631 is located inner joint 61 outer end, and the perpendicular of outer snap ring 631 is located inner, and the straight face of interior snap ring 632 is located the outer end, and the inclined plane of interior snap ring 632 is located inner.

In order to improve the sealing performance and ensure that the vibration assembly 2 can normally operate, the driving wire 21 of the vibration assembly 2 penetrates through the two connectors 4 and the elastic vibration damping sleeve 5, and a sealing structure 22 is arranged between the connectors 4 and the driving wire 21; the sealing structure 22 comprises a sealing head 221, the sealing head 221 is arranged at one end far away from the elastic vibration damping sleeve 5, a sealing head wire hole 222 is arranged on the sealing head 221 in a penetrating mode, an outer screw head at the lower end of the sealing head 221 is in threaded connection with a threaded hole of the connector 4, the inner end of the threaded hole is communicated with the connector wire hole 223 of the connector 4, a sealing ring installation groove 224 is formed in the outer end of the sealing head wire hole 222, the diameter of the sealing ring installation groove 224 is gradually reduced from the outer end to the inner end, a sealing ring 224a is arranged in the sealing ring installation groove 224, and a concave positioning nut 225 screwed on the sealing head 221 is arranged on the outer end of the sealing ring installation groove 224. Namely: the wall thickness of the seal ring 224a is the same before installation, and the lower end thickness is less than the upper end thickness after installation, thereby effectively improving the sealing performance.

In order to further improve the sealing effect, a first-stage convex ring 226 is arranged at the lower end of the concave positioning nut 225, a first-stage annular groove 228 matched with the first-stage convex ring 226 is arranged on an annular step 227 of the sealing head 221, the sealing head 221 and the concave positioning nut 225 are made of plastics, and a plurality of annular anti-slip and anti-leakage grains are uniformly distributed in the axial direction on the lower end of the inner wall of the sealing ring 224 a; a sealing ring is arranged between the external screw head and the annular step 227 of the sealing head 221 and the connecting head 4.

Because elastic damping cover 5 can take place deformation when the shock attenuation is worked, in order to prevent that drive wire 21 from damaging, adopted following design, connector line hole 223 lower extreme is equipped with and moves back a hole 223a, and the diameter that moves back a hole 223a is greater than the diameter of connector line hole 223, moves back a hole 223a outer end and still is equipped with annular arc collision prevention angle 223b, and the length of drive wire 21 between two connectors 4 is greater than the interval between two connectors 4.

In this embodiment: the drive line 21 between the two connecting heads 4 is curved.

In order to facilitate assembly and improve the assembly reliability, two symmetrically arranged clamping grooves 41 are arranged on the peripheral part of the connector 4, and the lower end of the connector 4 is embedded in an installation opening 42 at the upper end of the rod body 1 and is fixed through a welding structure. The clamping grooves 41 of the lower end connector 4 are respectively provided with clamping strips 43, two ends of each clamping strip 43 penetrate through the side wall of the rod body 1, and the end parts of the clamping strips 43 are connected with the rod body 1 in a sealing mode through welding structures.

Vibration subassembly 2 includes pivot 23 and sets up the eccentric block 24 in pivot 23, the setting of pivot 23 lower extreme is on axle bed 231 down, pivot 23 upper end is worn to establish axle bed 232 and is linked to each other with motor 25, be equipped with circulation heat radiation structure 26 on motor shell 251 of motor 25, be connected with feed liquor pipe 263 and drain pipe 264 on circulation heat radiation structure 26's the inlet 261 and the liquid outlet 262 respectively, feed liquor pipe 263 and drain pipe 264 are worn to establish in the spool cover of drive wire 21, still be equipped with cable and filling structure in the spool cover, the cable links to each other with motor 25. The motor temperature can be effectively reduced through the circulating heat dissipation structure 26, so that the equipment can be ensured to operate for a long time, and the production efficiency is improved.

The circulating heat dissipation structure 26 comprises an arc-shaped liquid inlet channel 26a and an arc-shaped liquid outlet channel 26b which are axially arranged on the motor shell 251, the upper end of the motor shell 251 is provided with an arc-shaped liquid inlet cavity 26c and an arc-shaped liquid outlet cavity 26d, a liquid inlet 261 and a liquid outlet 262 are respectively communicated with the arc-shaped liquid inlet cavity 26c and the arc-shaped liquid outlet cavity 26d, the lower end of the motor shell 251 is provided with an annular liquid passing cavity 26e, the arc-shaped liquid inlet channel 26a and the arc-shaped liquid outlet channel 26b are communicated through the liquid passing cavity 26e, and two guide plates 26g are further arranged in the liquid passing cavity 26 e; the motor comprises an inner stator, a rotor and a carbon brush which are arranged in a motor shell 251, the upper end of the motor shell 251 is provided with a wiring terminal,

in order to improve the structural firmness, a plurality of axially extending partition support plates 26f which are uniformly distributed along the arc direction are arranged in the arc liquid inlet channel 26a and the arc liquid outlet channel 26 b.

In order to ensure the reliability of assembly and the reliable operation of equipment, three limit convex strips 251a are uniformly distributed on the outer wall of the motor shell 251 along the circumferential direction, the limit convex strips 251a are arranged in limit convex strip grooves 251b, the outer ends of the limit convex strip grooves 251b are flush with the outer end surface of the rod body 1, and an annular top sleeve 251c is arranged between the upper end and the lower end of the motor shell 251; the upper end of the annular top sleeve 251c abuts against the bottom of the connector 4 at the lower end, and the lower end of the annular top sleeve 251c abuts against the upper end of the motor casing 251.

During the use, fix connector 4 of upper end on the support body, start and click the back and can go on the bubble to the concrete, can effectual reduction vibrting spear to the influence of shelf through damping coupling assembling 3 to can improve the vibration frequency of vibrting spear, and the heat dissipation through circulation heat radiation structure 26 guarantee motor.

When the circulating heat dissipation structure 26 works, the cooling liquid is conveyed to the liquid inlet 261 through the external heat dissipation mechanism, and returns to the external heat dissipation mechanism through the liquid outlet 262 after sequentially passing through the arc-shaped liquid inlet cavity 26c, the arc-shaped liquid inlet channel 26a, the liquid passing cavity 26e, the arc-shaped liquid outlet channel 26b and the arc-shaped liquid outlet cavity 26d, and the external heat dissipation mechanism comprises heat dissipation fins and a fan.

Example 2:

as shown in FIGS. 3 and 4, the structure, principle and steps of the embodiment are similar to those of embodiment 1 except that the elastic damping sleeve 5 comprises an inner rubber layer 51 and an outer rubber layer 52, a plurality of vertically arranged springs 53 are arranged between the inner rubber layer 51 and the outer rubber layer 52 and evenly distributed along the circumferential direction, the upper ends of the springs 53 are arranged on an upper annular fixing plate 54, the lower ends of the springs are arranged on a lower annular fixing plate 55, a plurality of barbs 56 are fixedly arranged on the inner wall and the outer wall of the upper annular fixing plate 54 and the lower annular fixing plate 55, a plurality of glue passing holes 57 are radially arranged on the upper annular fixing plate 54 and the lower annular fixing plate 55, the upper annular fixing plate 54 is connected with the inner rubber layer 51 and the outer rubber layer 52 through an upper rubber layer 58, the lower annular fixing plate 55 is connected with the inner rubber layer 51 and the outer rubber layer 52 through a lower rubber layer 59, and, A cavity 53a is formed among the lower rubber layer 59, the inner rubber layer 51 and the outer rubber layer 52, and the plurality of springs 53 are arranged in the cavity 53 a; the upper ends of the springs 53 are hung in the spring holes at the lower ends of the upper annular fixing plates 54 and are arranged in a one-to-one correspondence manner, and the lower ends of the springs are hung in the spring holes at the upper ends of the lower annular fixing plates 55 and are arranged in a one-to-one correspondence manner; the upper rubber layer 58 and the lower rubber layer are respectively connected with the inner rubber layer 51 and the outer rubber layer 52 into an integral structure, and the modes of hot melting or integral pouring and the like can be adopted.

Preferably, the cavity 53a is filled with white grease 53b to prevent dry grinding of the spring 53 with the rubber.

The white lubricating grease contains nano-scale polytetrafluoroethylene lubricating particles, has smooth surface, has excellent lubricating, heat removing, antirust, sealing and other performances, and is particularly suitable for precision instruments, mechanical parts under high-temperature conditions, heavy high-load equipment and the like. Because the metal-based thickener is not contained, the base oil cannot be aged, the application range of the lubricating grease is wider, the lubricating grease can be safely used for plastic, rubber and metal contact parts, and the lubricating grease is really multifunctional synthetic lubricating grease.

In order to improve the structural firmness and prolong the service life of the elastic damping sleeve, the elastic fiber layers 5a are compounded in the outer rubber layer 52 and the inner rubber layer 51.

Example 3:

as shown in fig. 5, the structure, principle and steps of the embodiment are similar to those of embodiment 2, except that an elastic rubber layer 53c is provided between the cavity 53a and the spring 53, and the cavity 53a is filled with the elastic rubber layer.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the rod body 1, the vibration assembly 2, the vibration damping connection assembly 3, the connection head 4, the elastic vibration damping sleeve 5, the press-fit structure 6, the inner joint 61, the anti-slip structure 63, the clamping sleeve 62, the outer clamping ring 631, the inner clamping ring 632, the sealing structure 22, the sealing head 221, the sealing head wire hole 222, the connection head hole 223, the sealing ring installation groove 224, the sealing ring 224a, the concave positioning nut 225, the primary convex ring 226, the annular step 227, the primary annular groove 228, the retreat hole 223a, the clamping groove 41, the installation hole 42, the clamping strip 43, the inner rubber layer 51, the outer rubber layer 52, the spring 53, the upper annular fixing plate 54, the lower annular fixing plate 55, the barb 56, the glue passing hole 57, the lower rubber layer 59, the upper rubber layer 58, the cavity 53a, the elastic fiber layer 5a, the white grease 53b, the elastic rubber layer 53c, the rotating shaft 23, the eccentric block 24, the lower shaft seat 231, the upper shaft seat, The terms of the upper shaft seat 232, the motor 25, the circulating heat dissipation structure 26, the liquid inlet 261, the liquid outlet 262, the liquid inlet pipe 263, the liquid outlet 264, the arc-shaped liquid inlet channel 26a, the arc-shaped liquid outlet channel 26b, the arc-shaped liquid inlet cavity 26c, the arc-shaped liquid outlet cavity 26d, the liquid passing cavity 26e, the separating support plate 26f, the motor casing 251, the limiting convex strip 251a, the limiting convex strip groove 251b, the annular top sleeve 251c, the guide plate 26g and the like are used, but the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims (10)

1. The tunnel trolley vibrating spear comprises a barrel-shaped spear body (1), and a vibrating assembly (2) is arranged in the spear body (1), and is characterized in that a vibration damping connecting assembly (3) is arranged at the upper end of the spear body (1), the vibration damping connecting assembly (3) comprises two symmetrically arranged connectors (4), the connectors (4) at the lower end are fixed at the upper end of the spear body (1), and the two connectors (4) are connected through an elastic vibration damping sleeve (5); two ends of the elastic damping sleeve (5) are respectively connected with the two connectors (4) through buckling and pressing structures (6); drive line (21) of vibration subassembly (2) wear to establish two connectors (4) and elastic damping cover (5), connector (4) and drive line (21) between be equipped with seal structure (22).

2. The tunnel trolley vibrating spear of claim 1 characterized in that the snap-fit structure (6) comprises a nipple (61) arranged at one end of the connector (4), the nipple (61) is sleeved with a clamping sleeve (62), the end of the elastic damping sleeve (5) is arranged between the nipple (61) and the clamping sleeve (62), and a retaining structure (63) is arranged between the clamping sleeve (62) and the nipple (61).

3. The tunnel trolley vibrating spear of claim 2, characterized in that anti-disengaging structure (63) including set up at least two on the inner joint (61) periphery along the axial distribution and the cross-section be outer snap ring (631) of right angle trapezoidal form, snap ring (62) inner wall be equipped with at least two along the axial distribution and the cross-section be inner snap ring (632) of right angle trapezoidal form, outer snap ring (631) and inner snap ring (632) dislocation set, the inclined plane of outer snap ring (631) be located inner joint (61) outer end, the vertical plane of outer snap ring (631) is located inner, the straight plane of inner snap ring (632) be located the outer end, the inclined plane of inner snap ring (632) be located inner.

4. The tunnel trolley vibratory rod of claim 1, 2 or 3 wherein the sealing structure (22) includes a sealing head (221), the sealing head (221) is arranged at one end far away from the elastic damping sleeve (5), a sealing head wire hole (222) is arranged on the sealing head (221) in a penetrating way, an outer screw head at the lower end of the sealing head (221) is screwed in a threaded hole of the connector (4), the inner end of the threaded hole is communicated with a connector wire hole (223) of the connector (4), the outer end of the sealing head wire hole (222) is provided with a sealing ring mounting groove (224), the diameter of the sealing ring mounting groove (224) is gradually reduced from the outer end to the inner end, a sealing ring (224a) is arranged in the sealing ring mounting groove (224), and a concave positioning nut (225) which is screwed on the sealing head (221) is arranged at the outer end of the sealing ring mounting groove (224).

5. The tunnel trolley vibrating spear of claim 1, 2 or 3, characterized in that the periphery of the connector (4) is provided with two symmetrically arranged slots (41), and the lower end of the connector (4) is embedded in the mounting port (42) at the upper end of the rod body (1) and fixed by a welding structure.

6. The tunnel trolley vibrating spear of claim 1, 2 or 3 characterized in that the elastic damping sleeve (5) comprises an inner rubber layer (51) and an outer rubber layer (52), a plurality of vertically arranged springs (53) are arranged between the inner rubber layer (51) and the outer rubber layer (52) and evenly distributed along the circumferential direction, the upper ends of the springs (53) are respectively arranged on an upper annular fixed sheet (54), the lower ends of the springs are respectively arranged on a lower annular fixed sheet (55), a plurality of barbs (56) are respectively and fixedly arranged on the inner wall and the outer wall of the upper annular fixed sheet (54) and the lower annular fixed sheet (55), a plurality of glue passing holes (57) are further and radially penetrated on the upper annular fixed sheet (54) and the lower annular fixed sheet (55), the upper annular fixed sheet (54) is connected with the inner rubber layer (51) and the outer rubber layer (52) through the upper rubber layer (58), the lower annular fixing piece (55) is connected with the inner rubber layer (51) and the outer rubber layer (52) through the lower rubber layer (59), a cavity (53a) is formed among the upper rubber layer (58), the lower rubber layer (59), the inner rubber layer (51) and the outer rubber layer (52), and the plurality of springs (53) are arranged in the cavity (53 a).

7. The tunnel trolley vibratory rod of claim 6 wherein the cavity (53a) is filled with white grease (53 b).

8. The tunnel trolley vibrating spear of claim 1, 2 or 3, characterized in that the elastic damping sleeve (5) comprises an inner rubber layer (51) and an outer rubber layer (52), the inner rubber layer (51) and the outer rubber layer (52) are compositely connected, and springs are arranged between the inner rubber layer (51) and the outer rubber layer (52) in a spiral distribution; elastic fiber layers are compounded in the outer rubber layer (52) and the inner rubber layer (51).

9. The tunnel trolley vibrating spear of claim 4 characterized in that the length of the drive line (21) between the two connectors (4) is greater than the spacing between the two connectors (4).

10. The tunnel trolley vibrating spear of claim 4, characterized in that the lower end of the connector line hole (223) is provided with a retreating hole (223a), the diameter of the retreating hole (223a) is larger than that of the connector line hole (223), and the outer end of the retreating hole (223a) is further provided with an annular arc-shaped anti-collision angle (223 b).

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