Weight box brake structure of tower type pumping unit

Abstract

The utility model discloses a tower type pumping unit weight box brake structure, a weight box guide rod comprises a box body, the inner side of the top surface of the box body is rotatably connected with a screw rod, one end of the screw rod penetrates out of the box body and is fixedly connected with a knob, the outer side wall of the screw rod is sleeved with a connecting sleeve in a threaded mode, and the connecting sleeve is fixedly connected with the knob. A limiting block is fixedly installed at one end of the bottom of the connecting sleeve, the bottom end of the limiting block is in sliding connection with the inner wall of the top of the box body, a straight gear is rotationally connected to the other side of the surface of the connecting sleeve, a rotating sleeve is fixedly installed on the inner wall of one side of the straight gear, and the inner wall of the rotating sleeve is rotationally connected with the connecting sleeve; when the weight box falls relative to the rod body, the rack drives the gear to rotate, so that the adjusting piece is driven to rotate through transmission of the chain wheel structure and the bevel gear structure, then the adjusting piece drives the first enclasping block and the second enclasping block to be tightened through the first connecting rod and the second connecting rod, and therefore the braking effect is achieved. And the influence by external environment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of counterweight boxes, in particular to a brake structure of a counterweight box of a tower type oil pumping unit. Background Art

[0002] The counterweight box of a tower-type oil pump is an important component used to balance the up and down vibration forces generated by the oil pump during operation. It is usually located on the top of the oil pump and consists of a group of weight blocks. It can be adjusted as needed to ensure that the oil pump remains stable during operation. The design and installation of the counterweight box is critical to improving the operating efficiency and stability of the oil pump.

[0003] The counterweight box brake mechanism in the prior art usually includes a spring structure, but the counterweight box is set in an outdoor environment and is easily affected by external interference, causing the spring structure to vibrate, thereby causing the clamping block and the counterweight box guide rod to accidentally touch each other. Therefore, a tower-type oil pump counterweight box brake structure is proposed to solve the above problem. Utility Model Content

[0004] The technical problems to be solved by the utility model are as follows:

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A tower-type oil pumping unit counterweight box brake structure comprises a counterweight box guide rod 1, and a counterweight box body 2 is arranged outside the counterweight box guide rod 1;

[0007] Also includes:

[0008] The counterweight box guide rod 1 includes a box body 201, a screw rod 202 is rotatably connected to the inner side of the top surface of the box body 201, and one end of the screw rod 202 passes through the box body 201 and is fixedly connected to a knob 203;

[0009] The outer wall of the screw rod 202 is threadedly sleeved with a connecting sleeve 204, a limiting block 205 is fixedly installed at one end of the bottom of the connecting sleeve 204, and the bottom end of the limiting block 205 is slidably connected to the top inner wall of the box body 201;

[0010] Among them, a spur gear 206 is rotatably connected to the other side of the surface of the connecting sleeve 204, and a rotating sleeve 207 is fixedly installed on the inner wall of one side of the spur gear 206. The inner wall of the rotating sleeve 207 is rotatably connected to the connecting sleeve 204, and the side walls around the rotating sleeve 207 are fixedly connected with protrusions 208.

[0011] As a further solution of the utility model: an upper sprocket 209 is rotatably connected to the top of the box body 201 and located near the rotating sleeve 207, a through groove is opened on the middle inner wall of the upper sprocket 209, the upper sprocket 209 is located on the inner wall of the through groove and is connected to the rotating sleeve 207, and the upper sprocket 209 is located on the inner wall of the through groove and is also slidably connected to the protrusion 208.

[0012] As a further solution of the utility model: the middle outer wall of the upper sprocket 209 is bound and connected with a chain 210, the lower end of the chain 210 passes through the box body 201, and the top inner side of the chain 210 is bound and connected with a lower sprocket 211, both sides of the lower sprocket 211 are rotatably connected to the inner wall of the lower end of the box body 201, and one end of the lower sprocket 211 passes through the box body 201 and is fixedly connected to a bevel gear 213.

[0013] As a further solution of the utility model: a connecting platform 215 is fixedly installed at the bottom of the box body 201, and a rotating rod 214 is rotatably connected to one side of the top of the connecting platform 215. A bevel gear 212 is fixedly connected to the top of the rotating rod 214. The top of the bevel gear 212 is rotatably connected to the bottom of the box body 201, and one side of the outer wall of the bevel gear 212 is meshed and connected with the bevel gear 2 213.

[0014] As a further solution of the utility model: the lower end of the rotating rod 214 passes through the connecting platform 215 and is fixedly connected with an adjusting member 216, one end of the side of the adjusting member 216 is rotatably connected with a connecting rod 1 217, and the other end of the side of the adjusting member 216 is rotatably connected with a connecting rod 218.

[0015] As a further solution of the utility model: the counterweight box guide rod 1 includes a rod body 101, a rack 102 is fixedly connected to one side of the outer wall of the rod body 101, and the rod body 101 is connected with the box body 201 and the connecting platform 215 through.

[0016] As a further solution of the utility model: the connecting rod 1 217 is located at one end away from the adjusting member 216 and is rotatably connected to a clamping block 1 219, the connecting rod 218 is located at one end away from the adjusting member 216 and is rotatably connected to a clamping block 220, one end of the clamping block 1 219 is rotatably connected to the clamping block 220, and the clamping block 220 is located below the connection of the clamping block 1 219 and is rotatably connected to the connecting platform 215, the clamping block 1 219 and the clamping block 220 are respectively located on both sides of the rod body 101, the sides of the clamping block 1 219 and the clamping block 220 are both in active contact with the rod body 101, and the clamping block 220 is provided with a receiving groove 221 at one end thereof located near the rack 102.

[0017] Beneficial effects of the utility model:

[0018] The counterweight box body in the utility model is installed on the outside of the guide rod body. When the brake structure needs to be used, the rotating knob drives the screw to rotate, so that the spur gear on the outside of the screw moves close to the guide rod. A rack is arranged on the outside of the guide rod body and can mesh with the spur gear. When the counterweight box falls relative to the rod body, the rack drives the gear to rotate, thereby driving the adjusting member to rotate through the sprocket structure and the bevel gear structure, and then the adjusting member drives the clamping blocks 1 and 2 to tighten through the connecting rods 1 and 2. At this time, the guide rod body is gradually held against the clamping blocks 1 and 2, so as to achieve the braking effect. The braking mechanism is triggered more stably and is not easily affected by the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a side view schematic diagram of the internal structure of the box body in the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the spur gear in the utility model;

[0023] Figure 4 This is a schematic diagram of the side view of the upper sprocket of the utility model;

[0024] Figure 5 It is a schematic diagram of the upward structure of the connecting platform in the utility model.

[0025] In the figure: 1. guide rod of counterweight box; 101. rod body; 102. rack; 2. main body of counterweight box; 201. box body; 202. screw rod; 203. knob; 204. connecting sleeve; 205. limit block; 206. spur gear; 207. rotating sleeve; 208. bump; 209. upper sprocket; 210. chain; 211. lower sprocket; 212. bevel gear one; 213. bevel gear two; 214. rotating rod; 215. connecting platform; 216. adjusting member; 217. connecting rod one; 218. connecting rod two; 219. clamping block one; 220. clamping block two; 221. receiving groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-5 As shown, a tower-type oil pumping unit counterweight box brake structure includes a counterweight box guide rod 1, and a counterweight box body 2 is arranged on the outer side of the counterweight box guide rod 1; it also includes: wherein the counterweight box guide rod 1 includes a box body 201, and a screw rod 202 is rotatably connected to the inner side of the top surface of the box body 201, and one end of the screw rod 202 passes through the box body 201 and is fixedly connected to a knob 203; wherein a connecting sleeve 204 is threadedly sleeved on the outer wall of the screw rod 202, and a limit block 205 is fixedly installed on one end of the bottom of the connecting sleeve 204, and the bottom end of the limit block 205 is slidably connected to the inner wall of the top of the box body 201; wherein a spur gear 206 is rotatably connected to the other side of the surface of the connecting sleeve 204, and a rotating sleeve 207 is fixedly installed on the inner wall of one side of the spur gear 206, and the inner wall of the rotating sleeve 207 is rotatably connected to the connecting sleeve 204, and the surrounding side walls of the rotating sleeve 207 are fixedly connected with protrusions 208, as shown in FIG. Figure 1 As shown, rotating the knob 203 drives the spur gear 206 to mesh with the rack 102 through the connecting sleeve 204;

[0028] An upper sprocket 209 is rotatably connected to the top of the box body 201 and located near the rotating sleeve 207. A through groove is provided on the inner wall of the middle of the upper sprocket 209. The upper sprocket 209 is located on the inner wall of the through groove and is connected to the rotating sleeve 207. The upper sprocket 209 is located on the inner wall of the through groove and is slidably connected to the protrusion 208. Figure 1 , Figure 4 As shown, when the rotating sleeve 207 rotates, the upper sprocket 209 is driven to rotate synchronously through the protrusion 208;

[0029] The middle outer wall of the upper sprocket 209 is bound and connected with a chain 210, and the lower end of the chain 210 passes through the box body 201, and the top inner side of the chain 210 is bound and connected with a lower sprocket 211, both sides of the lower sprocket 211 are rotatably connected to the inner wall of the lower end of the box body 201, one end of the lower sprocket 211 passes through the box body 201 and is fixedly connected to a bevel gear 213, and a connecting platform 215 is fixedly installed below the box body 201, and a rotating rod 214 is rotatably connected to one side of the top of the connecting platform 215, and a bevel gear 1 212 is fixedly connected to the top of the rotating rod 214, and the top of the bevel gear 1 212 is rotatably connected to the bottom of the box body 201, and one side of the outer wall of the bevel gear 1 212 is meshed and connected with the bevel gear 213, and the lower end of the rotating rod 214 passes through the connecting platform 215 and is fixedly connected to an adjusting member 216, and one end of the side of the adjusting member 216 is rotatably connected to a connecting rod 1 217, and the adjusting member 21 6 The other end of the side is rotatably connected with a connecting rod 218, the counterweight box guide rod 1 includes a rod body 101, one side of the outer wall of the rod body 101 is fixedly connected with a rack 102, the rod body 101 is connected with the box body 201 and the connecting platform 215, the connecting rod 1 217 is located at the end away from the adjusting member 216 and is rotatably connected with a clamping block 1 219, the connecting rod 218 is located at the end away from the adjusting member 216 and is rotatably connected with a clamping block 220, and the clamping block One end of the first 219 is rotatably connected to the second clamping block 220, and the second clamping block 220 is located below the connection of the first clamping block 219 and is rotatably connected to the connecting platform 215. The first clamping block 219 and the second clamping block 220 are respectively located on both sides of the rod body 101, and the sides of the first clamping block 219 and the second clamping block 220 are in active contact with the rod body 101. The end of the second clamping block 220 located near the rack 102 is provided with a receiving groove 221, such as Figure 5 As shown, the rotation of the adjusting member 216 drives the clamping block 1 219 and the clamping block 2 220 to rotate toward the rod body 101, and a gasket is provided on the side of the clamping block 1 219 and the clamping block 2 220 close to the rod body 101 for buffering, while increasing the friction between the clamping block 1 219 and the clamping block 2 220 and the rod body 101.

[0030] The working principle of this utility model:

[0031] When the box body 201 outside the rod body 101 needs to be braked, the rotating knob 203 drives the screw rod 202 to rotate, and the screw rod 202 drives the connecting sleeve 204 to move. The limit block 205 below the connecting sleeve 204 slides on the surface of the box body and is limited. The connecting sleeve 204 drives the outer spur gear 206 to mesh with the rack 102. At this time, when the box body 201 moves downward relative to the rod body 101, the rack 102 drives the spur gear 206 and the rotating sleeve 207 inside it to rotate. The protrusion 208 pushes the upper sprocket 209 to drive it to rotate, and the chain 210 drives the lower sprocket 211 and the bevel gear 213 to rotate, so that the bevel gear 1 212 drives the adjusting member 216 to rotate through the rotating rod 214, and the adjusting member 216 drives the clamping block 1 219 and the clamping block 2 220 to rotate through the connecting rod 1 217 and the connecting rod 2 218. The distance between the sides of the clamping block 1 219 and the clamping block 2 220 is shortened and pressed against the two sides of the rod body 101 to complete the clamping brake.

[0032] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A tower-type oil pumping unit counterweight box brake structure, comprising a counterweight box guide rod (1), a counterweight box body (2) being arranged outside the counterweight box guide rod (1); It is characterized in that Also includes: The counterweight box guide rod (1) comprises a box body (201), the inner side of the top surface of the box body (201) is rotatably connected to a screw rod (202), one end of the screw rod (202) passes through the box body (201) and is fixedly connected to a knob (203); The threaded sleeve on the outer wall of the screw rod (202) is provided with a connecting sleeve (204), a limiting block (205) is fixedly installed at one end of the bottom of the connecting sleeve (204), and the bottom end of the limiting block (205) is slidably connected to the top inner wall of the box body (201); The other side of the surface of the connecting sleeve (204) is rotatably connected to a spur gear (206), a rotating sleeve (207) is fixedly mounted on the inner wall of one side of the spur gear (206), the inner wall of the rotating sleeve (207) is rotatably connected to the connecting sleeve (204), and the surrounding side walls of the rotating sleeve (207) are fixedly connected to protrusions (208).

2. The tower-type oil pumping unit counterweight box brake structure according to claim 1, characterized in that: An upper sprocket (209) is rotatably connected to the top of the box body (201) and located near the rotating sleeve (207); a through slot is provided on the middle inner wall of the upper sprocket (209); the upper sprocket (209) is located on the inner wall of the through slot and is connected to the rotating sleeve (207); and the upper sprocket (209) is located on the inner wall of the through slot and is slidably connected to the protrusion (208).

3. A tower-type oil pumping unit counterweight box brake structure according to claim 2, characterized in that: A chain (210) is bound and connected to the middle outer wall of the upper sprocket (209), the lower end of the chain (210) passes through the box body (201), and the top inner side of the chain (210) is bound and connected to a lower sprocket (211), both sides of the lower sprocket (211) are rotatably connected to the inner wall of the lower end of the box body (201), and one end of the lower sprocket (211) passes through the box body (201) and is fixedly connected to a second bevel gear (213).

4. The tower-type oil pumping unit counterweight box brake structure according to claim 1, characterized in that: A connecting platform (215) is fixedly installed below the box body (201), one side of the top of the connecting platform (215) is rotatably connected to a rotating rod (214), the top of the rotating rod (214) is fixedly connected to a bevel gear 1 (212), the top of the bevel gear 1 (212) is rotatably connected to the bottom of the box body (201), and one side of the outer wall of the bevel gear 1 (212) is meshingly connected to a bevel gear 2 (213).

5. The tower-type oil pumping unit counterweight box brake structure according to claim 4, characterized in that: The lower end of the rotating rod (214) passes through the connecting platform (215) and is fixedly connected to an adjusting member (216); one end of the side of the adjusting member (216) is rotatably connected to a connecting rod 1 (217); and the other end of the side of the adjusting member (216) is rotatably connected to a connecting rod 2 (218).

6. The tower-type oil pumping unit counterweight box brake structure according to claim 1, characterized in that: The counterweight box guide rod (1) comprises a rod body (101), one side of the outer wall of the rod body (101) is fixedly connected to a rack (102), and the rod body (101) is connected through the box body (201) and the connecting platform (215).

7. The tower-type oil pumping unit counterweight box brake structure according to claim 5, characterized in that: The connecting rod 1 (217) is rotatably connected to the end of the connecting rod 1 (217) which is located away from the adjusting member (216), and the connecting rod 2 (218) is rotatably connected to the end of the connecting rod 2 (220) which is located away from the adjusting member (216). One end of the connecting rod 1 (219) is rotatably connected to the connecting block 2 (220), and the connecting block 2 (220) is located below the connection of the connecting block 1 (219) and is rotatably connected to the connecting platform (215). The connecting block 1 (219) and the connecting block 2 (220) are respectively located on both sides of the rod body (101), and the sides of the connecting block 1 (219) and the connecting block 2 (220) are both in active contact with the rod body (101). The end of the connecting block 2 (220) which is located near the rack (102) is provided with a receiving groove (221).

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