Drill jumbo propelling beam assembly

Abstract

The utility model discloses a drill jumbo propulsion beam assembly, which belongs to the drill jumbo field, and comprises a main rod, one side of the main rod is fixedly provided with a protection frame, one end of the protection frame is fixedly provided with an installation box, one side of the installation box is fixedly provided with a protection box, and one end of the main rod far away from the protection frame is provided with a cavity. A cavity is formed in the protective frame, a telescopic arm is slidably installed in the cavity, an air cylinder is fixedly installed in the protective frame, a piston shaft of the air cylinder penetrates into the cavity in a sliding mode, and a buffering assembly is arranged between the end of the piston shaft of the air cylinder and the opposite side of the telescopic arm. Through the arrangement of the shock absorption assembly, the first springs absorb shock force, and then the shock absorbers counteract bounce generated by the first springs in the same group, so that the shock absorption effect can be achieved, the damage degree of the telescopic arm and the main rod caused by shock when equipment is used can be reduced, and the effect of protecting the telescopic arm and the main rod is achieved; and the stability of the equipment during propelling can be maintained.

Description

Technical Field

[0001] The utility model relates to the field of rock drilling trolleys, and more specifically, to a propulsion beam assembly of a rock drilling trolley. Background Art

[0002] A rock drilling rig, also known as a drilling rig, is a rock drilling device used in tunnel and underground projects using the drill and blast method. It can move and support multiple rock drills to perform drilling operations at the same time. The working mechanism is mainly composed of a thruster, a drill arm, a slewing mechanism, and a translation mechanism. The rock drilling rig can be divided into a tunneling drilling rig, a mining drilling rig, an anchor drilling rig, and a rock drilling rig for open-pit mining. According to the traveling mechanism of the drilling rig, it can be divided into rail wheels, tires, and crawler types. According to the number of rock drills installed, it can be divided into single-machine, double-machine, and multi-machine drilling rigs. The rock drilling rig drives the impact mechanism and the drilling mechanism to move through the propulsion beam, and then uses a high-pressure oil pump to inject hydraulic oil into the impact mechanism and the drilling mechanism, so that the rock drill impacts the rock at a certain speed. At the same time, the clamping mechanism keeps the rock stable, and finally achieves rock crushing and drilling.

[0003] Some existing rock drills impact rocks at a certain speed to achieve the effect of crushing and drilling. When the equipment impacts the rock, a certain rebound force will be generated, which acts on the propulsion beam. Long-term use of the equipment may cause certain damage to the propulsion beam. The propulsion beam of the rock drill may be offset when moving, reducing the accuracy of the propulsion beam movement, thereby causing the size of the hole processed by the equipment to be offset, reducing the processing quality of the equipment. Therefore, in order to solve the above problems, we propose a rock drill trolley propulsion beam assembly. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a rock drilling trolley propulsion beam assembly, which adopts the following technical solutions:

[0005] A rock drilling trolley propulsion beam assembly comprises a main rod, a protective frame is fixedly mounted on one side of the main rod, a mounting box is fixedly mounted on one end of the protective frame, and a protective box is fixedly mounted on one side of the mounting box, a cavity is opened at one end of the main rod away from the protective frame, and a telescopic arm is slidably mounted in the cavity, a cylinder is fixedly mounted in the protective frame, and the cylinder piston shaft slides through the cavity, and a buffer component is provided between the end of the cylinder piston shaft and the opposite side of the telescopic arm;

[0006] A support plate is fixedly mounted on the side of the telescopic arm away from the main rod, and a mounting flange is provided on the side of the support plate away from the telescopic arm, and a shock absorbing assembly is provided between the mounting flange and the support plate;

[0007] A connecting plate is fixedly installed at the bottom of one end of the telescopic arm away from the main rod, and a pulling component is provided between the connecting plate and the installation box;

[0008] A first support block is fixedly installed on the top of one end of the main rod away from the protective frame, a second support block is fixedly installed on the top of one end of the telescopic arm away from the main rod, and a stabilizing rod is fixedly installed on one side of the second support block close to the main rod, and the stabilizing rod slides through the first support block at one end away from the second support block.

[0009] By adopting the above technical scheme, when the equipment is used, the staff docks the existing impact mechanism or drilling mechanism with the equipment through the mounting flange, and then drives the telescopic arm with the impact mechanism or drilling mechanism forward through the cylinder to contact the rock, so as to play the role of drilling, and the setting of the shock-absorbing component between the mounting flange and the support plate plays a role in reducing the vibration force generated during the operation of the equipment, which is beneficial to reducing the damage caused by the vibration force to the telescopic arm and the main rod, and thus is beneficial to maintaining the stability of the telescopic arm's advancement, and the setting of the buffer component between the cylinder piston shaft end and the telescopic arm can play a buffering role to achieve the effect of protecting the cylinder, and when the telescopic arm is extended and retracted, the telescopic arm moves synchronously with the second support block and the stabilizing rod, and the stabilizing rod slides in the stabilizing hole opened in the first support block, and the cooperation of the first support block, the stabilizing rod and the second support block plays a role in supporting and stabilizing the telescopic arm, which is beneficial to maintaining the stability of the telescopic arm, and thus is beneficial to improving the quality of drilling holes in the equipment, and the setting of the pulling component between the telescopic arm and the mounting box plays a role in pulling the telescopic arm.

[0010] Furthermore, the buffer assembly includes a support fixedly mounted on the end of the cylinder piston shaft, a movable groove being provided on the side of the support away from the cylinder, a support rod being slidably mounted in the movable groove, the support rod being fixedly connected to the side opposite to the telescopic arm at one end away from the support, and a third spring being fixedly connected between the inner wall of the side opposite to the movable groove at one end of the support rod away from the telescopic arm.

[0011] By adopting the above technical solution, when the cylinder pushes the telescopic arm to extend and retract, so that the impact mechanism or drilling mechanism installed at the end of the telescopic arm contacts the rock, the telescopic arm pushes the support rod to slide in the movable groove, and the support rod pushes the third spring to contract. The third spring gives the support rod a rebound force, thereby playing a buffering role, which is beneficial to reduce the degree of damage to the equipment.

[0012] Furthermore, two symmetrically distributed limit blocks are fixedly mounted on the side wall of one end of the support rod away from the telescopic arm, and the inner wall of the movable groove is provided with a limit groove matching the limit block.

[0013] By adopting the above technical solution, when the support rod slides in the movable groove, the support rod slides in the limit groove with the limit block. The cooperation between the limit block and the limit groove is conducive to maintaining the sliding stability of the support rod and helps to prevent the support rod from leaving the movable groove.

[0014] Furthermore, sliders are fixedly installed on both sides of one end of the telescopic arm close to the protective frame, the inner wall of the main rod is provided with a sliding groove matching the slider on the same side, and a second spring is fixedly connected between the slider and the inner wall of the same group of sliding grooves close to the protective frame.

[0015] By adopting the above technical solution, when the telescopic arm slides in the internal cavity of the main rod, the telescopic arm slides in the slide groove on the same side with the slider, and the slider pulls the second spring of the same group to stretch. The second spring can play the role of pulling the slider of the same group. Through the cooperation of the slider and the slide groove, it is beneficial to maintain the stability of the movement of the telescopic arm and help prevent the telescopic arm from detaching from the main rod.

[0016] Furthermore, the shock absorbing assembly includes a plurality of shock absorbers fixedly mounted on a side of the support plate away from the telescopic arm, the plurality of shock absorbers are distributed in a circular array on the side wall of the support plate, and the telescopic shaft ends of the plurality of shock absorbers are fixedly connected to the side opposite to the mounting flange, the side walls of the telescopic shafts of the plurality of shock absorbers are sleeved with a first spring, a positioning rod is fixedly mounted on a side of the mounting flange close to the support plate, and the positioning rod passes through the support plate and extends into the telescopic arm at one end away from the mounting flange, and a positioning groove matching the positioning rod is provided on the side of the telescopic arm away from the main rod.

[0017] By adopting the above technical solution, when the equipment is running, the vibration force is absorbed by the first spring, and then the rebound force generated by the first spring in the same group is offset by the shock absorber, which can play a shock-absorbing role. This is beneficial to reduce the damage to the telescopic arm and the main rod caused by vibration when the equipment is used, and achieves the effect of protecting the telescopic arm and the main rod, which is beneficial to maintaining the stability of the equipment during propulsion.

[0018] Furthermore, the pulling assembly includes a winding roller rotatably installed in an installation box, a steel cable is wound around the side wall of the winding roller, an inlet and outlet hole is opened on the side of the installation box close to the connecting plate, one end of the steel cable extends from the inlet and outlet hole and is fixedly connected to the side opposite to the connecting plate, a rotating rod is fixedly installed at one end of the winding roller, and the rotating rod extends into the protective box away from the end of the winding roller, the rotating rod passes through the side wall fixed sleeve of one end of the protective box and is provided with a driven gear, a reduction motor is fixedly installed in the protective box, a driving gear is fixedly installed on the side wall fixed sleeve of the output shaft of the reduction motor, and the driving gear and the driven gear are meshed.

[0019] By adopting the above technical solution, when the telescopic arm is extended or retracted, the driving gear is driven by the reduction motor to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the rotating rod to rotate, and the rotating rod drives the winding roller to rotate, thereby achieving the effect of unwinding the steel cable, so that the connecting plate moves synchronously with the steel cable. When the telescopic arm is extended or retracted, the winding roller is driven in reverse by the reduction motor to rotate, which can play the role of winding the steel cable and pulling the telescopic arm.

[0020] Furthermore, two symmetrically distributed connecting rods are fixedly installed on the top of the telescopic arm, and a connecting rod is fixedly installed on the bottom of one end of the main rod close to the protective frame. A support ring is fixedly installed on the bottom end of the connecting rod, and the support ring is sleeved on the side wall of the steel cable. The inner wall of the support ring and the inner wall of the inlet and outlet hole are rotatably installed with balls distributed in a ring array.

[0021] By adopting the above technical solution, when the telescopic arm moves with the steel cable, the steel cable moves in the support ring, and the support ring can play the role of supporting the steel cable. Balls are provided in the support ring, which is beneficial to reduce the friction generated between the steel cable and the support ring when it moves, thereby facilitating the subsequent use of the steel cable. A moving groove matching the connecting rod is provided at the bottom of the main rod, which facilitates the subsequent movement of the telescopic arm to the cavity opened in the main rod.

[0022] In summary, the utility model includes the following beneficial technical effects:

[0023] (1) In the present invention, by setting up the shock absorbing assembly, the first spring absorbs the vibration force, and then the shock absorber offsets the rebound force generated by the first spring in the same group, thereby achieving a shock absorbing effect, which is beneficial to reducing the damage to the telescopic arm and the main rod caused by vibration when the equipment is used, achieving the effect of protecting the telescopic arm and the main rod, and further beneficial to maintaining the stability of the equipment during propulsion.

[0024] (2) In the present invention, the side wall of the mounting flange is provided with a positioning rod. When the equipment is running and generates vibration force, the mounting flange pushes the positioning rod to slide in the positioning groove. The cooperation between the positioning rod and the positioning groove is conducive to maintaining the stability of the movement of the mounting flange.

[0025] (3) In the present invention, the buffer component is provided to play a buffering role, and the pulling component, the first support block, the second support block and the stabilizing rod cooperate to stabilize the telescopic arm and the main rod, which is beneficial to maintaining the stability of the telescopic arm when it moves forward, and further beneficial to maintaining the drilling quality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a propulsion beam assembly of a rock drilling trolley;

[0027] Figure 2 For this utility model Figure 1 A magnified view of middle;

[0028] Figure 3 It is a cross-sectional view of the utility model;

[0029] Figure 4 For this utility model Figure 3 Enlarged view of middle B;

[0030] Figure 5 For this utility model Figure 3 Enlarged view of middle C;

[0031] Figure 6 It is a cross-sectional view of the protective box in the utility model.

[0032] Description of the numbers in the figure:

[0033] 1. Main rod; 2. Telescopic arm; 3. First support block; 4. Stabilizing rod; 5. Second support block; 6. Support plate; 7. Shock absorber; 8. Mounting flange; 9. Positioning rod; 10. First spring; 11. Connecting plate; 12. Steel cable; 13. Support ring; 14. Connecting rod; 15. Mounting box; 151. Winding roller; 16. Protective box; 161. Rotating rod; 162. Driving gear; 163. Speed ​​reduction motor; 164. Driven gear; 17. Protective frame; 171. Cylinder; 18. Inlet and outlet hole; 19. Slide groove; 191. Second spring; 192. Sliding block; 20. Pillar; 201. Movable groove; 202. Third spring; 203. Support rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] The following is combined with Figure 1-6 The utility model is described in further detail.

[0038] See also Figure 1-6 A rock drilling trolley propulsion beam assembly comprises a main rod 1, a protective frame 17 is fixedly installed on one side of the main rod 1, a mounting box 15 is fixedly installed on one end of the protective frame 17, and a protective box 16 is fixedly installed on one side of the mounting box 15, a cavity is opened at one end of the main rod 1 away from the protective frame 17, and a telescopic arm 2 is slidably installed in the cavity, a cylinder 171 is fixedly installed in the protective frame 17, and the piston shaft of the cylinder 171 slides through the cavity, a buffer component is provided between the end of the piston shaft of the cylinder 171 and the side opposite to the telescopic arm 2, the buffer component comprises a pillar 20 fixedly installed on the end of the piston shaft of the cylinder 171, a movable groove 201 is opened on the side of the pillar 20 away from the cylinder 171, a support rod 203 is slidably installed in the movable groove 201, the support rod 203 is fixedly connected to the side opposite to the telescopic arm 2 at one end away from the pillar 20, and a third spring 202 is fixedly connected between the inner wall of the side opposite to the movable groove 201 at one end of the support rod 203 away from the telescopic arm 2

[0039] When the device is in use, the staff docks the existing impact mechanism or drilling mechanism with the device through the mounting flange 8, and then drives the telescopic arm 2 with the impact mechanism or drilling mechanism forward through the cylinder 171 to contact the rock, so as to play the role of drilling. When the impact mechanism or drilling mechanism contacts the rock, the telescopic arm 2 pushes the support rod 203 to slide in the movable groove 201, and the support rod 203 pushes the third spring 202 to contract. The third spring 202 gives the support rod 203 a rebound force, thereby playing a buffering role, which is beneficial to reducing the damage to the equipment. Two symmetrically distributed limit blocks are fixedly installed on the side wall of the support rod 203 away from one end of the telescopic arm 2, and the inner wall of the movable groove 201 is provided with a limit groove matching the limit block. When the support rod 203 slides in the movable groove 201, the support rod 203 slides in the limit groove with the limit block. The cooperation of the limit block and the limit groove is beneficial to maintaining the stability of the sliding of the support rod 203 and helps to prevent the support rod 203 from leaving the movable groove 201.

[0040] Slide blocks 192 are fixedly installed on both sides of the end of the telescopic arm 2 close to the protective frame 17. A slide groove 19 matching the slide block 192 on the same side is opened on the inner wall of the main rod 1. A second spring 191 is fixedly connected between the slide block 192 and the inner wall of the same group of slide grooves 19 close to the protective frame 17.

[0041] When the telescopic arm 2 slides in the internal cavity of the main rod 1, the telescopic arm 2 slides in the same side slide groove 19 with the slider 192, and the slider 192 pulls the second spring 191 of the same group to stretch. The second spring 191 can play a role in pulling the slider 192 of the same group. Through the cooperation of the slider 192 and the slide groove 19, it is beneficial to maintain the stability of the movement of the telescopic arm 2 and help prevent the telescopic arm 2 from detaching from the main rod 1.

[0042] A support plate 6 is fixedly installed on the side of the telescopic arm 2 away from the main rod 1, and a mounting flange 8 is provided on the side of the support plate 6 away from the telescopic arm 2. A shock-absorbing assembly is provided between the mounting flange 8 and the support plate 6. The shock-absorbing assembly includes a plurality of shock absorbers 7 fixedly installed on the side of the support plate 6 away from the telescopic arm 2. The plurality of shock absorbers 7 are arranged on the side wall of the support plate 6 in a circular array, and the telescopic shaft ends of the plurality of shock absorbers 7 are fixedly connected to the side opposite to the mounting flange 8. The side walls of the telescopic shafts of the plurality of shock absorbers 7 are sleeved with a first spring 10. The mounting flange 8 is fixedly installed on the side close to the support plate 6. There is a positioning rod 9, and the end of the positioning rod 9 away from the mounting flange 8 passes through the support plate 6 and extends into the telescopic arm 2. A positioning groove matching the positioning rod 9 is opened on the side of the telescopic arm 2 away from the main rod 1. When the equipment is running, the vibration force is absorbed by the first spring 10, and then the rebound force generated by the first spring 10 of the same group is offset by the shock absorber 7, which can play a shock-absorbing role, which is beneficial to reduce the damage to the telescopic arm 2 and the main rod 1 caused by vibration when the equipment is used, thereby achieving the effect of protecting the telescopic arm 2 and the main rod 1, and thus helping to maintain the stability of the equipment during propulsion.

[0043] A connecting plate 11 is fixedly installed at the bottom of one end of the telescopic arm 2 away from the main rod 1, and a pulling assembly is provided between the connecting plate 11 and the installation box 15. The pulling assembly includes a winding roller 151 rotatably installed in the installation box 15, and a steel cable 12 is wound around the side wall of the winding roller 151. An inlet and outlet hole 18 is opened on the side of the installation box 15 close to the connecting plate 11. One end of the steel cable 12 extends from the inlet and outlet hole 18 and is fixedly connected to the side opposite to the connecting plate 11. A rotating rod 161 is fixedly installed at one end of the winding roller 151, and the rotating rod 161 penetrates into the protective box 16 at one end away from the winding roller 151. The rotating rod 161 penetrates the side wall of one end of the protective box 16 and is fixedly sleeved with a driven gear 164. A A reduction motor 163, a driving gear 162 is fixedly sleeved on the side wall of the output shaft of the reduction motor 163, and the driving gear 162 and the driven gear 164 are meshed. When the telescopic arm 2 is extended or retracted, the driving gear 162 is driven to rotate by the reduction motor 163, and the driving gear 162 drives the driven gear 164 to rotate, and the driven gear 164 drives the rotating rod 161 to rotate, and the rotating rod 161 drives the winding roller 151 to rotate, so as to achieve the effect of unwinding the steel cable 12, so that the connecting plate 11 can move synchronously with the steel cable 12. When the telescopic arm 2 is extended or retracted, the winding roller 151 is driven in the reverse direction by the reduction motor 163 to rotate, so as to play the role of winding the steel cable 12, and can play the role of pulling the telescopic arm 2.

[0044] Two symmetrically distributed connecting rods 14 are fixedly installed on the top of the telescopic arm 2, and a connecting rod 14 is fixedly installed on the bottom of one end of the main rod 1 close to the protective frame 17. A supporting ring 13 is fixedly installed on the bottom end of the connecting rod 14, and the supporting ring 13 is sleeved on the side wall of the steel cable 12. The inner wall of the support ring 13 and the inner wall of the inlet and outlet hole 18 are rotatably installed with balls distributed in a ring array. When the telescopic arm 2 moves with the steel cable 12, the steel cable 12 moves in the supporting ring 13. The support ring 13 can play the role of supporting the steel cable 12, and the support ring 13 is provided with balls, which is beneficial to reduce the friction generated between the steel cable 12 and the support ring 13 when it moves, thereby facilitating the subsequent use of the steel cable 12. A moving groove matching the connecting rod 14 is opened at the bottom of the main rod 1, which is convenient for the subsequent movement of the telescopic arm 2 to the cavity opened in the main rod 1.

[0045] A first support block 3 is fixedly installed on the top of the end of the main rod 1 away from the protective frame 17, a second support block 5 is fixedly installed on the top of the end of the telescopic arm 2 away from the main rod 1, and a stabilizing rod 4 is fixedly installed on the side of the second support block 5 close to the main rod 1, and the stabilizing rod 4 slides through the first support block 3 at one end away from the second support block 5.

[0046] The implementation principle of the embodiment of the utility model is as follows: when the equipment is used, the staff connects the existing impact mechanism or drilling mechanism with the equipment through the mounting flange 8, and then drives the telescopic arm 2 with the impact mechanism or drilling mechanism to move forward and contact the rock through the cylinder 171, and the vibration force generated when the equipment is running is reduced by the setting of the shock absorbing component between the mounting flange 8 and the support plate 6, which is beneficial to reduce the damage caused by the vibration force to the telescopic arm 2 and the main rod 1, and thus is beneficial to maintain the stability of the telescopic arm 2 moving forward, and the piston shaft end of the cylinder 171 and the The setting of the buffer component between the telescopic arm 2 can play a buffering role, thereby achieving the effect of protecting the cylinder 171, and when the telescopic arm 2 is extended or retracted, the telescopic arm 2 moves synchronously with the second support block 5 and the stabilizing rod 4, and the stabilizing rod 4 slides in the stabilizing hole opened in the first support block 3. Through the cooperation of the first support block 3, the stabilizing rod 4 and the second support block 5, the telescopic arm 2 is supported and stabilized, which is beneficial to maintaining the stability of the telescopic arm 2, and further beneficial to improving the quality of drilling holes in the equipment. When the pulling component is set between the telescopic arm 2 and the installation box 15, the telescopic arm 2 is pulled.

[0047] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A rock drilling trolley propulsion beam assembly, comprising a main rod (1), characterized in that: A protective frame (17) is fixedly mounted on one side of the main rod (1), a mounting box (15) is fixedly mounted on one end of the protective frame (17), and a protective box (16) is fixedly mounted on one side of the mounting box (15); a cavity is formed at one end of the main rod (1) away from the protective frame (17), and a telescopic arm (2) is slidably mounted in the cavity; a cylinder (171) is fixedly mounted in the protective frame (17), and a piston shaft of the cylinder (171) slides through the cavity; a buffer assembly is provided between the end of the piston shaft of the cylinder (171) and the opposite side of the telescopic arm (2); A support plate (6) is fixedly mounted on the side of the telescopic arm (2) away from the main rod (1), and a mounting flange (8) is provided on the side of the support plate (6) away from the telescopic arm (2), and a shock absorbing assembly is provided between the mounting flange (8) and the support plate (6); A connecting plate (11) is fixedly mounted on the bottom of one end of the telescopic arm (2) away from the main rod (1), and a pulling assembly is provided between the connecting plate (11) and the mounting box (15); A first support block (3) is fixedly mounted on the top of one end of the main rod (1) away from the protective frame (17), a second support block (5) is fixedly mounted on the top of one end of the telescopic arm (2) away from the main rod (1), and a stabilizing rod (4) is fixedly mounted on the side of the second support block (5) close to the main rod (1), and the stabilizing rod (4) slides through the first support block (3) at one end away from the second support block (5).

2. A rock drilling trolley propulsion beam assembly according to claim 1, characterized in that: The buffer assembly comprises a support (20) fixedly mounted on the end of the piston shaft of the cylinder (171); a movable groove (201) is provided on the side of the support (20) away from the cylinder (171); a support rod (203) is slidably mounted in the movable groove (201); an end of the support rod (203) away from the support (20) is fixedly connected to a side opposite to the telescopic arm (2); and a third spring (202) is fixedly connected between an inner wall of a side of the support rod (203) away from the telescopic arm (2) and opposite to the movable groove (201).

3. A rock drilling trolley propulsion beam assembly according to claim 2, characterized in that: Two symmetrically distributed limit blocks are fixedly mounted on the side wall of one end of the support rod (203) away from the telescopic arm (2), and the inner wall of the movable groove (201) is provided with a limit groove matching the limit block.

4. The rock drilling trolley propulsion beam assembly according to claim 1, characterized in that: Slide blocks (192) are fixedly installed on both sides of one end of the telescopic arm (2) close to the protective frame (17); a slide groove (19) matching the slide block (192) on the same side is opened on the inner wall of the main rod (1); and a second spring (191) is fixedly connected between the slide block (192) and the inner wall of the same group of slide grooves (19) close to the protective frame (17).

5. The rock drilling trolley propulsion beam assembly according to claim 1, characterized in that: The shock absorbing assembly comprises a plurality of shock absorbers (7) fixedly mounted on a side of a support plate (6) away from the telescopic arm (2); the plurality of shock absorbers (7) are arranged on the side wall of the support plate (6) in a circular array, and the telescopic shaft ends of the plurality of shock absorbers (7) are fixedly connected to the side opposite to the mounting flange (8); the telescopic shaft side walls of the plurality of shock absorbers (7) are sleeved with a first spring (10); a positioning rod (9) is fixedly mounted on a side of the mounting flange (8) close to the support plate (6), and the end of the positioning rod (9) away from the mounting flange (8) passes through the support plate (6) and extends into the telescopic arm (2); a positioning groove matching the positioning rod (9) is provided on a side of the telescopic arm (2) away from the main rod (1).

6. The rock drilling trolley propulsion beam assembly according to claim 1, characterized in that: The pulling assembly comprises a winding roller (151) rotatably mounted in an installation box (15), a steel cable (12) being wound around a side wall of the winding roller (151), an inlet and outlet hole (18) being provided on a side of the installation box (15) close to the connecting plate (11), one end of the steel cable (12) extending from the inlet and outlet hole (18) and being fixedly connected to a side opposite to the connecting plate (11), a rotating rod (161) being fixedly mounted on one end of the winding roller (151), and the rotating rod (161) extending from one end of the winding roller (151) into the protective box (16), a driven gear (164) being fixedly sleeved on the side wall of one end of the rotating rod (161) penetrating the protective box (16), a reduction motor (163) being fixedly mounted in the protective box (16), a driving gear (162) being fixedly sleeved on the side wall of the output shaft of the reduction motor (163), and the driving gear (162) and the driven gear (164) being meshed.

7. A rock drilling trolley propulsion beam assembly according to claim 6, characterized in that: Two symmetrically distributed connecting rods (14) are fixedly mounted on the top of the telescopic arm (2); a connecting rod (14) is fixedly mounted on the bottom of one end of the main rod (1) close to the protective frame (17); a supporting ring (13) is fixedly mounted on the bottom of each connecting rod (14); and the supporting ring (13) is sleeved on the side wall of the steel cable (12); and balls distributed in a ring array are rotatably mounted on the inner wall of the supporting ring (13) and the inner wall of the inlet and outlet hole (18).

Images